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VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2019

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VDI Wissensforum GmbH (Hrsg.)

Dritev – Drivetrain For Vehicles 2019

Reihe: VDI-Berichte

Band 2354 2019

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A. Grunwald Transmission system footprint related to fatigue, efficiency and NVH S. I-367-I-384

„… Transmission system footprint related to fatigue, efficiency and NVH Leistungsabdruck eines …” „… transmission system are evaluated in early program phase with OEM during the RFIphase. Typical transmission …” „… particular transmission system within the cloud of data based on experiences, allows the confirmation for …”

C. Schoerghuber, I. Müller, H. Wiener Dedicated hybrid transmission for commercial vehicle applications – Mechanical layout, system analysis and simulation of a dedicated hybrid transmission for commercial vehicles S. III-29-III-48

„… Dedicated Hybrid Transmission for Commercial Vehicle Applications Mechanical layout, system …” „… analysis and simulation of a dedicated hybrid transmission for commercial vehicles Dr. Christoph …” „… dedicated hybrid transmission for various commercial vehicle applications, which AVL is developing as part …”

H. Gürbüz, S. Ott, A. Albers Potentials for improving the system behaviour of highspeed clutches for BEV using optimal transmission springs S. I-265-I-278

„… applications are used. 4.1 Innovative latching system with optimum transmission springs for highspeed …” „… transmission springs for mechanical latching systems is presented in order to use the stored potential energy …” „… electric drive train. [1][2][3][4] The systematic development of shiftable high-speed transmissions and …”

O. Simon, W. Heubner Triple wet clutch module and actuation system, shift cylinders and park lock for modern hybrid transmissions – Architecture and technical description of a triple wet clutch unit and the related active... S. I-471-I-482

„… passive clutch and shift actuation system Dipl.-Ing. Olivier Simon, Valeo Transmissions, Amiens …” „… , 2019 475 Actuation system New hybrid transmissions and DHTs have a big focus on efficiency …” „… lubrication. This low pressure systems have to be adapted to the transmission, there a lot of different …”

A. Moser, F. Brezger Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic actuation systems S. I-427-I-446

„… multispeed transmissions are using this technique. The pump generates the so-called system pressure, which …” „… transmission housing applying force and travel with a so-called engage bearing. The system pressure is …” „… integrated. This type of transmission needs a hydraulic system for shifting and usually also for keeping …”

S. Demmerer Efficiency of electric axle drive systems – Potential of multi-speed-drives S. I-279-I-286

„… transmission can enhance the performance by staying with the 3-phase system. A transmission cannot increase …” „… reduction gearset with a constant ratio. Two-speed transmissions are then in discussion, if higher maximum …” „… cars or commercial vehicle applications. For reasons of efficiency, two-speed transmissions have been …”

Titelei/Inhaltsverzeichnis S. I-I-I-XII

„… improving the system behaviour of highspeed clutches for BEV using optimal transmission springs …” „… Transmission system footprint related to fatigue, efficiency and NVH …” „… � � � � � � � � � � � � � � � � � � � � � � �67 G. Hellenbroich, FEV Europe GmbH, Aachen f Modular Systems Modular system 8G-DCT with all-wheel …”

H. Göbbels, S. Scholz, S. Volkmer Efficient 6-speed manual transmission for modern downspeeding solutions S. I-411-I-426

„… Synchronizer Two different cone systems are used for the synchronizer blocking rings for the transmission …” „… output shaft, while gears 3 to 6 use single-cone systems located on the transmission input shaft. This …” „… Efficient 6-Speed Manual Transmission for Modern Downspeeding Solutions Dipl.-Ing. Helmut …”

A. Harsch, G. Clausen, A. Rink Modular system 8G-DCT with all-wheel drive S. I-79-I-94

„… , but forms part of the main transmission. The oil system of the main transmission supplies the PTU with …” „… gear via the paddle shifters on the steering wheel. The transmission control system checks the driver …” „… achieved in the sport program when the launch control is activated. System parameters of the transmission …”

T. Pullen Integrated eDrive system for various performance classes S. I-287-I-294

„… requirements. The variation of the transmission ratio allows the adjustment of the system performance …” „… . In addition, the system target weights, the maximum required transmission VDI-Berichte Nr. 2354 …” „… transmission consistently to a common system housing structure. While keeping the dimensions and interfaces of …”

A. Kinigadner, T. Biermann Schaeffler eAxle family – future solutions for the electric drivetrain S. I-567-II-VIII

„… described subsystems (electric machine, power electronics, transmission) in combination with system …” „… optimisation to improve system behaviour and power distribution Innovative transmission and four-wheel-drive …” „… system-oriented approach. Future system concepts have a high degree of mechanical, electrical, and electronic …”

S. Foulard, S. Rinderknecht, F. Braun, P. Jardin ecoLIFE3: An approach for a resource-efficient dimensioning of vehicle components based on a holistic optimization with real life load data –paradigm shift in transmission engineering based on big dat... S. I-213-I-226

„… transmissions. The system relates to standard industry procedures for load spectrum and damage calculation …” „… typical load & lifetime monitoring system for transmissions Besides, an implementation of the system …” „… the transmission as an entire system should VDI-Berichte Nr. 2354, 2019222 be taken as a reference …”

A. Viehmann, J.-E. Schleiffer, S. Rinderknecht Evaluation of the dedicated range-extender transmission powertrain concept DE-REX regarding efficiency, costs and complexity – Comparative assessment of electric and hybrid powertrain configurations b... S. I-21-I-48

„… mode and coordinates the EM torques / , and the shifting system / , of the transmission. The entire …” „… assessment. The costs of a fixedspeed transmission BEV72 (no clutches, no shifting system and only two gear …” „… costs for a two-speed transmission including a wet dual clutch, a hydraulic actuation system and …”

A. Locher, M. Ebenhoch, P. Gutmann Innovative 8HP modular design kit for conventional, MHEV and PHEV transmissions S. I-103-I-112

„… , carry-over solutions for all transmission derivatives need to be developed on a sub-system level …” „… technologies: sub-systems as an enabler To best meet customer requirements, this system is divided into …” „… Innovative 8HP Modular Design Kit for Conventional, MHEV and PHEV Transmissions Anton Locher …”

K. Baron, C. Rübsam, M. Werra, F. Küçükay Hybridized manual transmission – Opportunities and challenges of mild hybridization S. I-49-I-66

„… using a measurement car with a state of the art manual transmission and clutch system. It was equipped …” „… driving comfort improvement during gear shifts on manual and automated manual transmission (AMT) systems …” „… Hybridized Manual Transmission Opportunities and challenges of mild hybridization Konstantin …”

L. Herdle 7DCT/HDT400 – New fuel-efficient FWD DCT and hybrid transmission for up to 400 Nm S. I-95-I-102

„… EFFICIENCY TRANSMISSION The applied measures lead to system efficiency, which is considered best-in-class …” „… STAND-ALONE ATTRIBUTE – BEST-IN-CLASS TORQUE-TO-WEIGHT RATIO Fig. 4: Transverse Transmission system …” „… transmissions systems. Since the HDT replaces components like the 12V generator the relevant weight on vehicle …”

S. Kluemper Benefits of the new Allison 9-speed fully automatic – Medium duty commercial transmission S. III-61-III-74

„… introduced with Allison Transmission’s 6th Generation controls system. 6th Generation controls will support …” „… integrating numerous fuel savings and productivity enhancing control algorithms into the transmission system …” „… Benefits of the New Allison 9-Speed Fully Automatic Medium Duty Commercial Transmission Scott …”

S. Johnsen, R. Wexenberger Mechatronic transmission control module for agile AMT Transmission actuation in commercial vehicles S. III-75-III-84

„… ATrAct™ transmission actuation system which was co-developed and launched for a dedicated customer …” „… . This system is prosperous implemented in a new AMT transmission and HD Truck Generation. With …” „… 1 Figure 1 ATrAct™ transmission actuation unit with ExAct™ external …”

M. Horn, F. Kutter, B. Vahlensieck Advanced development of dedicated hybrid concepts – Systematic search for optimal powertrain concepts S. I-1-I-20

„… requirements. The holistic multi-criteria transmission system optimization considers all possible driving …” „… systems seems to be the best way for the beginning of the 2020 years. Transmission kits allow appropriate …” „… the systematic search of transmissions for dedicated hybrid concepts The created process chain …”

R. Nasdal, K. Masser Diverse requirements, one product family – The HV Kit for LCV from MAGNA S. III-55-III-60

„… only few components are contributing to losses in transmission system. These are mainly gears …” „… Nasdal, Getrag Ford Transmissions, Köln; Dr. Karl Masser, MAGNA Engineering Center Steyr, St. Valentin …” „… . This solution is easy to install and can be used as an AWD system in hybrid mode. The second solution …”

C. Dassler, M. Kurch, M. Nichols NVH-challenges and solution approaches in electric drive development from the supplier‘s view S. I-349-I-366

„… deformation state of the entire transmission system, the time-varying stiffness behavior of individual gear …” „… and connecting elements of the transmission are modeled VDI-Berichte Nr. 2354, 2019358 as a system of …” „… : Test results of optimization Challenges and solutions of the system´s NVH behavior In order to …”

Y. Le Neindre Great Wall Motors’ 2nd generation of Pi4 platform – A high performance PHEV for premium SUV in China S. II-99-II-110

„… based on a P0-P4 topology. Improvements made on components (engine, transmission, battery & braking …” „… system) as well as function features enabled to make significant improvements on longitudinal dynamics …” „… . • In-house developed 7 speed Dual Clutch Transmission (as opposed to the 6 speed DCT used in first …”

P. Lück, K. Bennewitz, J. Tousen Volkswagen’s electric drivetrains of the new modular e-drive kit (MEB) S. I-515-I-530

„… systematically intermeshed. The high-voltage battery, a high-performance lithium-ion system, is located into the …” „… single-speed transmission, the highvoltage wiring and the charging device. Basically, two e-drives can be …” „… all-electric vehicles (fig. 2). The components of the electric drive system and the package are carefully and …”

S. Stöhr, R. Koesling, V. Marx New all-wheel drive systems in Mercedes-Benz SUVs S. I-483-I-500

„… 483 All-Wheel Drive System Development at Mercedes-Benz SUVs of the last 40 years Production of the …” „… set. Fig. 1: All Wheel Drive System History Unveiled in 1989, the 463 model series turned the …” „… differential locks were replaced by a further-developed variant of the electronic traction system, which …”

D. Schweigert, M. Mileti, B. Morhard, M. Sedlmair, M. Fromberger, M. Otto, T. Lohner, K. Stahl Innovative transmission concept for hyper-high-speed electromechanical powertrains S. I-541-I-554

„… machines and the transmission system as a whole. The decreased gear input torques deriving from the high …” „… sub-transmissions and the innovative shifting by a voice coil actuator. The two power paths of the system are …” „… Innovative transmission concept for hyper-high-speed electromechanical powertrains Daniel …”

M. Bahne, A. Wiesebrock Flexible oil management for dual-clutch transmissions S. I-447-I-454

„… . Wiesebrock, Magna Powertrain Transmission Systems, Untergruppenbach Zusammenfassung Über die …” „… Flexible Oil Management for Dual-clutch Transmissions Dipl.-Ing. M. Bahne, Dr.-Ing. A …” „… lubrication oil management by Magna Powertrain and BMW is created for automatically shifted transmissions. It …”

P. Fietkau, N. Lamparsky, M. Felbermaier, A. Fröhlcke, T. Conze Holistic design approach for electric drives S. I-163-I-178

„… Lubrication System DPS and Transmission DPS, and also supplies control path models for a software- or …” „… FE-System abgewälzt. Diese Simulation liefert endgültige Aussagen zu auftretenden Kräften …” „… the system introduced at Porsche AG for holistic digital powertrain development, using the mechanical …”

K. von Rueden, C. Danzer, J. Liebold, T. Mueller, T. Hirschbeck 1, 2 or 3 – how much it would be? Evaluating the need of multispeed electric drives coming from different perspectives S. I-227-I-254

„… , transmission and actuation system, the drivability optimization in multi-speed systems is of great importance …” „… few assemblies as possible with a modular system consisting of e-machine, transmission and power …” „… the electric motor, the inverter, the battery, cooling system and subsequent transmission, both …”

H. Merkel Solutions for increased power density at shifting clutches S. I-197-I-212

„… , BorgWarner Transmission Systems, Ketsch Zusammenfassung Bei modernen Fahrzeug- und Antriebskonzepten …” „… various functions within the system. Hybrid and Electric vehicles present new challenges, especially in …” „… transmission in an extremely compact installation space. The new clutch design combines a friction plate …”

R. Gat, M. Ehlen Virtual lubrication analysis – Simulation of oil flow in gearboxes using a novel lagrangian approach S. I-133-I-136

„… efficient lubrication systems for state-of-the-art transmissions and gearboxes are mostly passive and …” „… different areas. In modern transmission development one major task is to ensure lubrication and cooling of …” „… , including the prediction of oil flows in transmissions and gearboxes. These approaches and workflows have …”

A. Lampe, R. Serway, L. Große Siestrup, C. Gühmann Artificial intelligence in transmission control – Clutch engagement with reinforcement learning S. I-113-I-132

„… augmented, time-consuming calibration effort for fine-tuning of the system. Transmission software functions …” „… Artificial Intelligence in Transmission Control Clutch Engagement with Reinforcement Learning …” „… voraussetzen. Sie haben den Nachteil, dass sie die Kenntnis über das reale System erfordern, dieses aber …”

C. Möser, T. Märkle, K. Hornung Effective acoustic development of electrified powertrains – Combination of simulation and evaluation methods S. I-329-I-348

„… Python, through to machine learning. It creates system understanding, and helps in developing efficient …” „… comprehensive means of understanding the behaviour of the system under analysis in a visually striking way, and …” „… the electric drive system and the vehicle, and represents a certain novelty. Even just gearing noise …”

V. Schroiff A modular Concept for EMI shielding of thermoplastic housings for E-Cars – An innovative approach to support weight saving and function integration S. II-161-III-VIII

„… Innovative transmission and four-wheel-drive concepts for the electrified drive system Development potentials …” „… , system analysis and simulation of a dedicated hybrid transmission for commercial vehicles …” „… . In this case the conductivity can be achieved by the compounding of a corresponding filler system …”

A. Kooy, R. Seebacher Minimize torsional vibrations – Full isolation if necessary S. I-313-I-328

„… of vibration damper systems: Active systems: Energy is supplied to and extracted from the system …” „… motor and transmission. The alternation of electric motor drives and internal combustion engine drives …” „… variants, transmission manufacturers rely on the increased use of CAE tools with the aim of including the …”

W. Wenzel, M. Eglinger, M. Li, C. Sieg, J. Hengst, F. Küçükay Next generation of 48V HEV S. I-295-I-312

„… 20 kW. It is expected that in the next years the 48V system can offer a peak electrical power up to …” „… (Dedicated Hybrid Transmission), a current P0 48V hybrid and a conventional vehicle. In order to evaluate …” „… ) is used. Furthermore, a lossmap-based transmission loss simulation is integrated to improve the …”

U. Stockinger, H. Pflaum, K. Stahl Single vs. multi-cone synchronizers with carbon friction lining – A comparison of load limits and deterioration behavior S. I-455-I-470

„… Synchronizers are widely used in gear boxes of car and truck transmissions. Optimizing costs and improving the …” „… widely used in gear boxes of car and truck transmissions. These machine elements synchronize the …” „… loads are significantly higher than the typically specified lifetime transmission conditions in order …”

C. Schmahl, M. Höck, D. Ressin, M. Kesseler GKN’s ActiveConnect AWD system as an energy-efficient solution for electrified vehicles S. I-555-I-566

„… introduced vehicle concepts . The disconnection of the AWD system limits power transmission to a single …” „… transmissions a mechanical system should be considered in future concept developments. Many of the findings …” „… GKN’s ActiveConnect AWD system as an energy-efficient solution for electrified vehicles …”

B. Müller, C. Angrick, M. Fritz New concepts for electrical drive trains for high power density S. II-55-II-66

„… , and control strategy, which is why a system-oriented approach is needed. Schaeffler already proved …” „… powertrain systems such as electric axles, hybrid modules and dedicated hybrid transmissions, their high …” „… platform approach comprising all system components of the electrified automotive powertrain ranging from …”

A. Esser, J.-E. Schleiffer, T. Eichenlaub, S. Rinderknecht Development of an optimization framework for the comparative evaluation of the ecoimpact of powertrain concepts S. I-137-I-162

„… Capacity of the battery Number of speeds in the transmission system Gear ratio of the transmission …” „… with the aid of a holistic overall system optimization approach is needed. Basis for the dimensioning …” „… Machine EM and Generator G), as well as the transmission and the battery. The architecture is shown in …”

M. Lindström Gas powered heavy duty vehicles from Scania: Current program and future potential S. III-49-III-54

„… pumping losses. The EGR-system can be seen on the hot side of the engine in Fig. 3. VDI-Berichte …” „… automatic transmission with a torque converter or with Scania Opticruise. The Scania Opticruise is an …” „… automated mechanical gearbox with electro-hydraulic clutch control. This transmission allows the engine to …”

M. Maillard, L. Laurenty, S. Chretien Impact of hybridization on functional safety for low voltage eMotors – Impact of electrical and hybrid architectures (P2 P4) on the ASIL of electrical machines (eMotors) S. II-141-II-150

„… call this disengagement system a decoupling function. Powertrain Electrical Systems mechanical …” „… mechanical performances. VDI-Berichte Nr. 2354, 2019 145 Fig. 4: Belt Systems & eMotors System …” „… complex to implement. Similarly, the mechanical interfaces for the transmission of torque electrical …”

G. Hellenbroich Low-cost DCT for emerging markets incl. 48 V hybridization S. I-67-I-78

„… transmission length of 330 mm to 355 mm depending on the chosen dual clutch system, shorter than any other …” „… transmission are actuated electro-mechanically with a single shift drum. This system can remain completely …” „… Doppelkupplungsgetriebe dar. Abstract Following manual transmissions and AMTs, dual clutch transmissions (DCT) are …”

S. Sudo, T. Maeda, R. Kobayashi Drivetrain trend of truck of Asian market and new technology drive train for HD truck S. III-1-III-8

„… are different drivers for engineering transmissions. CO2 reduction is very important driver for …” „… engineering of drive train system. Hino Motors developed new hybrid system for heavy duty long haul trucks …” „… customer demands; Fuel economy, safety, comfortable, cost…. etc.) Key driver of transmission …”

P. Janssen, R. Keizer, T. Rosen Optimization of multi-motor electric drive systems – What is the optimum combination in terms of efficiency and cost? S. I-255-I-264

„… system. It was assumed that all systems are equipped with DC/AC inverters using 650 V IGBT …” „… and different e-motor technologies were analysed for a target vehicle application with a system power …” „… transmission families. The main dimensions were kept constant within one family, and only scaled by gear width …”

C. Kim New next generation eight-speed automatic transmission for FWD vehicles S. I-397-I-410

„… span, improvement of transmission efficiency and weight reduction. The clutch, hydraulic system …” „… New next generation eight-speed automatic transmission for FWD vehicles Senior Research …” „… engineer, Cheoljin Kim, HYUNDAI TRANSYS, Hwaseong, Korea Abstract Automatic transmission has been …”

M. Jörgensson, C. Wolrath, J. Hallnéus Volvo Cars modular electric axle drive S. I-531-I-540

„… system in coaxial position towards the wheel axle in combination with a planet gear transmission. This …” „… of the world’s broadest electrified car offerings in the market. A scalable modular system was …” „… Volvo Cars fully in-house designed, verified and manufactured e-axle transmission. Manufactured in …”

S. Kurokawa, M. Kunihisa, Y. Oyama Development of a new next-generation CVT for small cars S. I-385-I-396

„… unique specifications. A continuously variable transmission (CVT) newly developed by JATCO specifically …” „… space. That requires a reduction in the longitudinal length of the transmission in order to optimize …” „… the arrangement of each shaft and the operating system layout. 3.3 Selection of skeleton and …”

A. Gehring, M. Beringer, M. Özdemir Overview of stator technologies motors for electro mobility in passcars – The right technology for each application S. II-67-II-76

„… system. Introduction In the past 20 years several approaches have been made to electrify the …” „… , where the oil of the transmission directly cools the stator winding. However also this method has its …” „… develops different technologies for these electric propulsion systems to offer the optimal solution for …”

H. Schäfer System impacts to the electrical drive by using SIC-power semiconductors S. II-15-II-28

„… System impacts to the electrical drive by using SIC-power semiconductors Dr. Heinz Schäfer …” „… depicted. Not considered in this figure is the battery charger and the mechanical transmission. Normally …” „… therefore also the installation space, the weight and system costs. VDI-Berichte Nr. 2354, 2019 …”

K. Hasegawa, D. Kosaka, S. Shimizu, K. Kawabata, H. Tsukashima Development of new hybrid AWD system for the SUV segment S. I-501-I-514

„… Development of New Hybrid AWD System for the SUV Segment Koichi Hasegawa, Daichi Kosaka …” „… (SUV) equipped with an AWD system. This paper also describes how these performance targets were …” „… achieved using a front-wheel drive-based hybrid AWD system in which the non-driven rear wheels are powered …”

C. Leonhardt, M. Otto, K. Stahl Potential of lightweight construction and component properties of joined spur gears S. I-179-I-196

„… with high transmission ratio (not depicted) in combination with a lever construction. VDI-Berichte …” „… measuring device at zero load. Additionally the system is preloaded by a small load to eliminate the …” „… clearance in the whole system including shaft-hub connections and the tooth contact. The second phase is …”

M. Scherpelz, J. Bernhardt, T. Weyh Simulation of load cycles for commercial vehicle drivelines based on statistical reasoning S. III-85-III-102

„… properties, control algorithms and strategies, e.g. shifting strategy of the transmission (see [6]). Fig …” „… parameters such as transmission ratios and engine maps, which were used in the project, but will not be …” „… driveline parameters like transmission ratios, a consumption VDI-Berichte Nr. 2354, 201994 matrix, etc. are …”

doi.org/10.51202/9783181023549

VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2022

Reihe: VDI-Berichte

Band 2389 2022

Treffer in den folgenden Teilen:

R. Chen, D. Qin, C. Liu Study on electromechanical coupled dynamic characteristics of transmission system of wind turbine S. 763-778

„… Study on Electromechanical Coupled Dynamic Characteristics of Transmission System of Wind Turbine …” „… includes a translational–torsional dynamic model of a gear transmission system that can be used for …” „… transmission system with the measured load as the input and determined that “the largest vibration is the gear …”

P. Rodel, R. Spieler, M. Indenbirken, T. Nuisl Holistic friction optimization of transmissions – a significant contribution for sustainability S. 731-744

„… . Instead the transmission must be modelled as a complete system including all relevant elasticities …” „… transmission system development. Key element of this endeavors always is to reduce energy losses and increase …” „… be shown how OptiKit enables an automated design optimization of the whole transmission system. The …”

S. Ebrahimi, J. Langhart, D. Marano NVH calculations for drivetrains, a methodology for selection of the best suitable calculation approach for a specific purpose S. 75-90

„… peak-to-peak transmission error and subsequently lower excitations to the powertrain system. Introduction The …” „… affecting the transmission error [1]. With increasing the input speed of the system, the excitation …” „… peak-to-peak transmission error and subsequently lower excitations to the powertrain system. Fig. 11: ERP of …”

D. Park, A. Rezayat, Y. Gwen Gear design optimization for multi-mesh and multi-power flow transmissions under a broad torque range incorporated with multibody simulations S. 849-862

„… system level still depends on the designer’s skill and experiences, especially for the transmission …” „… average of peak-to-peak transmission errors from each evaluated torque) and the system mesh power loss …” „… Gear design optimization for multi-mesh and multi-power flow transmissions under a broad torque …”

M. Weigand, C. Gachot Improved rotorcraft drivetrain safety and related research with special focus on improved lubricants for rotorcraft transmissions S. 561-572

„… lubricants for rotorcraft transmissions Prof. Dr.-Ing. Michael Weigand, Prof. Dr.-Ing. Carsten Gachot, TU …” „… Wien, Vienna, Austria Abstract TU Wien works in the fields of Transmissions for Aviation and …” „… Transmissions for Aviation at TU Wien TU Wien addresses Transmissions for Aviation with Special Courses …”

M. Weigand Smart and intelligent chip detectors using machine learning to monitor wear particles and dangerous degradation of critical powertrain components S. 995-998

„… . But only the knowledge of the presence of wear particles in the lubrication system is no sufficient …” „… monitoring for transmissions and gearboxes in 2019. The goal was to increase safety during operation and give …” „… collaboration with TU Wien. The research unit of Machine Elements and Transmissions for Aviation offers …”

T. Konig, M. Kley, F. Wagner, M. Liebschner Enhanced damage classification on transmissions by generating synthetic data with Generative Adversarial Networks (GAN) S. 227-238

„… transmissions and thus enable conclusions to be drawn about the condition of a drive system. [1, 2] The …” „… , location and extent of damage in the transmission system. Only selected data at identical and constant …” „… Condition monitoring of transmissions and drive systems is becoming an increasingly important part in many …”

C. Schonke, T. Magdy, K. Daubach, W. Kassem, M. Oehler, O. Koch Simulation of high torque density gearbox noise excitation S. 837-848

„… prediction of gear excitation (transmission error) of such elastic systems is still a challenge. The key …” „… . This relates in particular to gear mesh properties such as load distribution and transmission error …” „… concerning transmission error (TE), which to a large extent determines the noise excitation characteristics …”

J. Theling, M. Willecke, J. Brimmers, C. Brecher Influences on the Excitation Behavior of Lightweight Planetary Gearboxes S. 421-432

„… meshes caused by global deformation Better load distribution and loadsharingOverall SystemHigher …” „… the influence on the transmission error was not determined. Therefore, the objective of this report is …” „… deformation and deviationof the overall system Misalignment of the centralelements sun gear, ring gearand …”

Titelei/Inhaltsverzeichnis S. I-XXVIII

„… electromechanical coupled dynamic characteristics of transmission system of wind turbine …” „… 45I. Hong, Z. Teaford, A. Kahraman, Gear and Power Transmission Research Laboratory,Department of …” „… Costs – Coherent R&D for gears, system and manufacturing 103A. Hessler, B. Neubauer, Business …”

A. Hessler, B. Neubauer NVH-performance versus Costs – Coherent R&D for gears, system and manufacturing S. 103-118

„… efficiency and power density, while maintaining minimal noise-emissions. 2 Transmission systems …” „… find statistical relationships between the measured structure or airborne noise of transmission systems …” „… NVH-Performance versus Costs – Coherent R&D for Gears, System and Manufacturing Interaction …”

A. Zhang, J. Wei, M. Cao, B. Peng Dynamic modeling and accuracy evaluation method for complex irregular components of aviation transmission S. 573-584

„… aviation transmission. 1 Introduction Transmission system is one of the key core components of the …” „… ., Rotordynamics analysis of a double-helical gear transmission system, Meccanica, 51 (2016) 1 pp. 251-268 …” „… become an inevitable requirement for high-accuracy system-level modeling [1]. With the rapid development …”

N. Hessinger, M. Braunstingl, H. Bansal Advanced use of DOE in gear geometry optimization S. 281-286

„… by further comparing dynamic results of the NVH response of the system to real test data. Hypoid …” „… parameters, such as the cutter system, ratio and module. Additionally, the design tool is used to identify …” „… their respective deflections as previously determined in the system FEA model. The TCA directly …”

A. Spatzig, N. Fujimura, P. de Oliveira Teixeira Practical analysis of productivity of grinding tools in the process of internal generating gear grinding S. 1319-1330

„… Abstract Planetary gear systems continue to be the focus in new transmission developments and are the …” „… unwanted noise and vibration. It is especially sensitive on e-axle transmissions which rely on fewer …” „… elements than conventional combustion engine transmissions. Internal generating gear grinding is one …”

L. Ryali, D. Talbot Dynamic load distribution of planetary gear sets subject to both internal and external excitations S. 389-408

„… . The influence of operating conditions on both system-level response and local gear mesh contact stress …” „… planets) and system-level errors (pin position/alignment error, tooth thickness error, runout error). This …” „… of Excitations in Geared Systems by Transmission Errors,” Journal of Sound and Vibration, 290(3), p …”

B. Guilbert, P. Velex Influence of thin rimmed/-webbed gears on transmission dynamic behaviour – Approximate dynamic factor formula S. 523-532

„… geared systems by transmission errors”, Journal of Sound and Vibration, 290(2006) pp.882-909. [14] Velex …” „… Influence of thin rimmed/-webbed gears on transmission dynamic behaviour – Approximate dynamic …” „… Element models, strain energies and quasi-static transmission errors. It is shown that, whenever solid …”

F. Thurner Light into the black box: using AI software to identify unknown mechanisms of action and resolve acoustic/NVH problems – practical example of a passenger car powertrain S. 779-786

„… measurement system-capable according to MSA type II. Subjective evaluations, on the other hand, are more …” „… system-compatible result data Yn and the likewise valid data and measured values of the possible influence factors …” „… comfort in vehicles. The cause is often the gearing in the transmissions. Due to the large number of …”

L. Bo Integrated optimization of structural and control parameters for a hybrid electric system S. 927-934

„… transmission system composed of coupling mechanism, deceleration mechanism and driving motor, and the vehicle …” „… Integrated optimization of structural and control parameters for a hybrid electric system Lin Bo …” „… vehicle are optimized. Considering the dynamic characteristics of each component, the hybrid power system …”

X. Zheng, Y. Hu FE analysis and predication on the traveling wave – resonance of aero-gears S. 915-926

„… Bevel gears are widely applied in high-speed transmission systems due to the high contact ratio …” „… . Yumei Hu, State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, China …” „… Abstract The resonance of bevel gear mesh in high-speed transmission is still a major challenge in …”

L.-C. Chang, S.-J. Tsai, C.-H. Huang Contact characteristics of cycloid planetary gear drives considering backlashes and clearances S. 215-226

„… , Ph.D., Transmission Machinery, Tainan City, TaiwanAbstractThe aim of the paper is to analyze contact …” „… transmission errors.(1) Pin-wheel contact tooth pairs. The meshing relation is based on relative motion of the …” „… pin-shaft is effective for transmission if the inner product of the position vector uOCAOC and the normal …”

Y. Koch, G. Martin, E. Kirchner, D. Quirnheim Pais, R. Slatter Feasibility study of measuring instantaneous angular speed of helical gears with magnetoresistive sensors S. 253-264

„… sensor data. Independent of the maturity level of the system under consideration, mechatronic, smart and …” „… involute gear trains is based on an order analysis of the system vibrations and an associated method is to …” „… , 3, 9]. Loaded transmission error The meshing of two gears can be described as spring and damper …”

J. Gotz, F. Siglmuller, M. Furst, M. Otto, K. Stahl Experimental investigation of the dynamic load sharing of planetary gearboxes S. 409-420

„… . Viadero, „Planetary transmission load sharing: Manufacturing errors and system configuration study …” „… significantly by the dynamic system behaviour of the planetary gear system, whereas the dynamic load share for …” „… evaluate the influence of speeds under consideration of the vibration characteristics of the system. 2 …”

M. Furst, J. Gotz, M. Otto, K. Stahl Automation of gearbox design S. 787-802

„… shaft-bearing system into the overall transmission design process. In addition to iterative optimization, the …” „… Abstract In order to respond to a shortened development time of today's transmission systems, the …” „… address the complexity of today's transmission systems adequately. Some commercial program systems …”

B. Legrady, M. Taesch, G. Tschirschnitz, C. F. Mieth Prediction of churning losses in an industrial gear box with spiral bevel gears using the smoothed particle hydrodynamic method S. 651-664

„… experiment. 4.2 Churning losses of the reduced systemPreliminary churning loss evaluations aim at the …” „… churning losses of a spiral bevel gear transmission using the novel meshless particle method, smoothed …” „… for an automotive transmission at its top gear ratio [2]. Power losses within a gearbox are classified …”

C. A. Celikay, A. Donmez, A. Kahraman An experimental study of parametric resonances of a spur gear pair at speeds above its primary resonance S. 511-522

„… Resonance C. Alper Celikay, Ata Donmez, Ahmet Kahraman, Gear and Power Transmission Research Laboratory The …” „… conventional transmission applications. In view of the push towards higher speed gear sets for electrified …” „… as the frequency content of the measured transmission error signals. 1. Introduction Spur gears are …”

D. Drummer, D. Schubert, C. Herzog In situ measurement of geometric and structural influences on the operating properties of polymer gears S. 1099-1116

„… deformation and system performance as well as lifetime. Furthermore, this work demonstrates the potential of …” „… maintenance and repair cost by monitoring the health of a critical system [9], e.g. a gear drive. In condition …” „… to characterise the wear during operation: Gravimetric or tactile measurement or analysis of a system …”

W. Wagner, S. Schumann, B. Schlecht Enhanced loaded tooth contact analysis of hypoid gears within a multi-body-system simulation S. 357-370

„… . This results in a stiffness discontinuity for the entire system of the tooth contact. The transmission …” „… Enhanced Loaded tooth contact analysis of hypoid gears within a multi-body-system simulation …” „… within a multi-body-system simulation offers the possibility to outsource the calculation of the tooth …”

A. Hilligardt, J. Klose, V. Schulze A new method for avoiding meshing interference in gear skiving S. 1305-1318

„… the process three coordi-nate systems are used: A fixed coordinate system (machine coordinate system …” „… quantity for electric mobility transmissions. Due to the complex kinematics of gear skiving, collisions of …” „… ) defined by xm, ym and zm; a tool coordinate system with x0, y0 and z0 and a workpiece coordinate system …”

L. Maccioni, F. Concli, C. Paschold A Novel Concept of Nested Cycloidal Speed Reducer S. 969-984

„… experi-mental verification of the transmission in a lunar drilling system. Applied Thermal Engi-neering 113, S …” „… automatic approach to build TNMs. They either model their investigated gearbox as an isothermal system for …” „… , X.; Velex, P.: Power Loss Predictions in Geared Transmissions Using Thermal Networks-Applications to …”

P. Mahendra Rao, S. Foletti, L. Bonaiti, C. Gorla, S. Beretta, F. Concli Mode III threshold under rolling contact fatigue and development of a test gearbox for planet gears S. 499-510

„… the epicyclic module of high-power mechanical power transmission systems of aerospace applications …” „… equivalent to this real one. The multiaxial tests are performed on an MTS 809 Axial/Torsional Test System …” „… intended test gearbox coupled to the test rig system. Fig. 6: Intended final criteria for the test gearbox …”

H.-J. Dennig, L. Zumofen, A. Kirchheim, S. Winterberg, D. Stierli Increasing the safety against scuffing of additive manufactured gear wheels by internal cooling channels S. 1345-1364

„… example, integrating a cooling system can increase the safety against scuffing or reduce the amount of …” „… . Introduction and motivation Transmission components must be made lighter and more efficient [1, 2]. Spur gears …” „… ]. A high degree of efficiency in power transmission and, at the same time, a high power density of the …”

I. Hong, Z. Teaford, A. Kahraman A comparison of gear tooth bending fatigue lives from single tooth bending and rotating gear tests S. 45-74

„… bending fatigue failures are instantaneously catastrophic to gear drive power transmission systems. For …” „… critical to the safe operation of power transmission systems they are used in. Long life of these …” „… Isaac Hong, Zach Teaford, Ahmet Kahraman, Gear and Power Transmission Research Laboratory, Department …”

T.-T. Mac, D. Iba, Y. Matsushita, S. Mukai, T. Inoue, A. Fukushima, N. Miura, T. Iizuka, A. Masuda, I. Moriwaki Application of genetic algorithms for parameters identification in a developing smart gear system S. 239-252

„… transmission from an antenna). Proc. SPIE 10973, Smart Structures and NDE for Energy Systems and Industry 4.0 …” „… Application of Genetic Algorithms for parameters identification in a developing smart gear system …” „… monitoring system. Based on a derived return loss function, the GA method helps selecting the most suitable …”

K. Stahl, T. Tobie, C. M. Illenberger Standardized methods of load capacity calculation of plastic gears S. 1173-1180

„… applications. In the past, the focus was mostly on motion transmission in actuators, but current developments …” „… system and load distribu-tion. VDI 2736 [11] requires a safety factor of SFmin = 1.6 for intermittent …” „… , 20221178? - Required minimum safety factor (flank) ? Nm Torque ? - Transmission ratio ? m/s Tangential …”

B. H. Kien, D. Iba, Y. Tsutsui, Y. Lei, D. Taga, N. Miura, T. Iizuka, A. Masuda, I. Moriwaki Plastic gear remaining useful life prediction using artificial neural network S. 951-956

„… prognostic system are health indicator (HI) and remaining useful life (RUL). The HI reflects the health or …” „… and working accuracy. If plastic gear can replace metal gear in transmissions, the condition …” „… learning have become more attractive [1]. In previous works, we considered a diagnostic system for plastic …”

F. Donner, T. Scheu, M. Weigand Dynamic simulation of a rotor system with variable speed S. 985-994

„… / variable rotor speed” that consists of a transmission with variable ratio and a rotor system with rotor …” „… showed that a rotor speed variation performed by a transmission system is possible. The efficiency and …” „… -60 main transmission: Fig. 5: Layout of UH-60 transmission system [6] The main power path …”

A. Turich Gear hard finishing with up to 100% in-process inspection S. 1583-XL

„… a basket-based palletizer system. The integrated automation is made by Gleason Automation Systems …” „… e-drive transmissions, are leading to even tighter tolerances. This vicious circle puts statistical …” „… establishing a “closed loop” connection between the metrology system VDI-Berichte Nr. 2389, 20221584and the …”

K. Lubke, H. Rohr Quality inspection of common step gearings – Overview of different types and their assessment S. 959-968

„… coordinate system must be aligned properly. The x-axis defines 0° in the transmission law, the origin of the …” „… based on the given transmission law. It must follow some design principles especially jerks must be …” „… transmission laws e.g. linear laws, modified sinoid laws or 5th grade polynomic laws. Due to the heavy weight …”

M. Weigand Calculation of weight and center of gravity of rotorcraft drive trains in the early design phases – Exploratory study of feasibility and possible approaches S. 999-1004

„… development. Besides the design of the whole system tools are required for the design of the drivetrain. Not …” „… parameters. TU Wien has already research activities about development of transmissions for rotary wing …” „… helicopter transmissions in the project OHA! – Optimized Helicopter Transmissions Made in Austria! Both …”

M. Solf, J. Brimmers, T. Bergs Sustainable gear manufacturing – Potential and challenges S. 1395-1396

„… a significant influence on system performance and ecology. For example, the use of transmissions in …” „… sustainability are constantly increasing. Especially in the mobility and energy sectors, gear transmissions have …” „… CO2e-emissions. In addition, high-performance transmissions play a decisive role in the generation of …”

A. Baumann, B. Bertsche Coefficient of friction behavior of gear oils and significance for the meshing process of spur gears S. 745-762

„… characterization of transmission oil based on its dynamic viscosity alone is not sufficient for the physical …” „… explanation of different levels of noise emissions in vehicle transmissions. For this reason, the test …” „… differentiation between the oils according to mechanical properties. In gear transmissions with involute gear …”

P. Tenberge, J. Vorgerd, L. Gondecki 2-disc tribometer for various tests on sliding/rolling contacts with tribological loads such as in tooth flank contacts S. 145-156

„… system for steady improvements of the power-density of gears in high-performance transmissions. In this …” „… to a simple test system has not yet been successful. But this task has now been solved with a new 2 …” „… situationTo copy the meshing tribology of tooth flanks nearly 1:1 on a 2-disc system, it finally needs two …”

E. Lamaj, J. Blomeke, F. Rudolph, J. Hermes A comprehensive, fully parametrized calculation model for improved helical-hypoid gearbox efficiency S. 825-836

„… modular transmission system and its sensitivity with respect to various physical and geometrical influence …” „… material and quality of all machine elements. For a complete modular system of gearboxes, this task is very …” „… and validated by system and subsystem level experiments. The virtual gearbox representation is applied …”

X. Tian, L. Zhou, J. Han, L. Xia Research on tooth flank twist compensation of continuous generating grinding gear based on flexible electronic gearbox S. 1005-1018

„… are established. Secondly, the transformation matrix between workpiece and tool coordinate system is …” „… , shock and working noise, and the decreasing transmission accuracy. As a result, it is necessary to …” „… and transmission performance. In summary, gear modification can significantly optimize the stress …”

L. Becker, D. Vill, P. Tenberge Optimized crossed helical gearboxes using non-involute transverse sections S. 1197-1208

„… corresponds to the system of the worm. The counterpart Fig. 1: Coordinate systems of the crossed helical gear …” „… wheels must be considered in one system. This is done by a global coordinate system X, Y, Z, which …” „… (normal section) and Q-profile VDI-Berichte Nr. 2389, 20221198rack has a local coordinate system q, which …”

J. Hochrein, M. Trubswetter, M. Otto, K. Stahl Direct flank geometry calculation for face gears S. 1447-1460

„… the possibility for high transmission ratios in small construction spaces. An involute pinion-type …” „… cutting machines [22]. Mainly auxiliary drives use face gears, but also a few power transmissions are …” „… helicopter transmission [17]. Consequently, the use of face gears is currently limited to applications which …”

D. Zorko, Z. Bergant, B. Černe Potential of woven carbon fiber reinforced polymer composite gears S. 1071-1082

„… and refers to the coordinate system shown in Fig. 1. VDI-Berichte Nr. 2389, 20221072 Fig. 1: Woven …” „… testing system (Fig. 2). Experimental runs were performed at five torque levels ranging from 0.4 to 0.8 Nm …” „… were run until final failure. Fig. 2: Gear par testing system and thermographic image of a tested …”

A. Beinstingel, M. Heider, B. Pinnekamp, S. Marburg Gear mesh excitation and non-uniform rational B-splines S. 91-102

„… generation of gearboxes is mainly referred to the characteristic transmission process of the mating gear …” „… during power transmission cycles. 1. Introduction The noise characteristics of gearboxes are an …” „… actual power transmission process leads to oscillating forces on the shafts and bearings [1, 2]. These …”

K. Fukanoki, K. Matsuo, Y. Suzuki, K. Fujiki Practical application of asymmetric tooth root geometry for downsizing automotive transmission gears S. 197-214

„… Practical application of asymmetric tooth root geometry for downsizing automotive transmission …” „… gears Kunihiko Fukanoki, Dipl.-Ing. Kouji Matsuo, Hardware System Development Department, JATCO Ltd …” „… , Shizuoka, Japan Abstract Failure modes of automotive transmission gears can be largely divided into …”

A. Kubo, A. Ueda, R. Uehara Development of IP-bevel gears for industrial operation S. 343-356

„… Abstract To find the potential of IP-bevel gears in practice, the measurement of the transmission error was …” „… carried out. The transmission error of IP-bevel gears is as same as that of well-developed automotive …” „… point-contact. 2. Transmission error Soft gear noise and vibration during operation is very important factor in …”

S. Oberle, V. Labriola, E. Melnikov, G. Gariglio High performance plastic gear solution in the engine environment S. 1033-1044

„… involving a very complex VDI-Berichte Nr. 2389, 20221034vibrational system. Vibrations created by the …” „… to transmission and wheels (performances / drivability) Alternating inertial forces have the …” „… , but this is not directly influencing / affecting how the driving system works so this aspect will not …”

A. Gebhard, W. Kassem, M. Oehler Cylinder-on-ring model wear tests as an input data source for the simulation of friction and wear of plastic gears S. 1133-1148

„… heating system and a set of fans for forced cooling. In order to maintain nominal ring temperature, both …” „… , FLEISCHER's energetic method includes the friction coefficient of the tribological system in the equation …” „… friction work and describes the tribological system state of a material coupling. It establishes the …”

P. Tenberge, R. Uelpenich, P. Dong, R. He Very fast tooth root optimization – general tool geometry for much smaller tooth root stresses S. 457-468

„… blocked. Local contact loads are applied to other nodes. The system of equations, which is linear for …” „… new coordinate system is introduced in which each grid node has a relative x-position (0 ... 1 …” „… “Power Transmissions 2019”, Varna (BG), 2019 [11] R. He, P. Tenberge, X. Xu, H. Li, R. Uelpenich, P …”

C. M. Illenberger, T. Tobie, K. Stahl Operating behavior and performance of oil-lubricated plastic gears S. 1117-1132

„… measurement signal is passed via a hollow shaft from the housing to a telemetry system.Software is used to …” „… lubrication system. The lubricant is in-jected directly into the gear mesh while the oil level is maintained …” „… provided with a corresponding sensor system. Thermal sensors are applied to the plastic gears and the …”

A. Alnahlaui, P. Tenberge Improved method for the determination of tooth root endurance strength S. 31-44

„… the masses are opposed to each other. Each mass consists of four single masses therefore the system is …” „… transmission with an integrated ball screw. Two exciter magnets represent the dynamic drive. One is located at …” „… verification of the reliability must be shorter and more efficient in the development process. Systematic and …”

F. Lagier, A. Bischofberger, K. Bause, S. Ott Suitability of additive manufactured PEEK gears as a means of gear sampling for automotive high-speed gearboxes S. 1045-1060

„… particular offer the possibility of improving the dynamics of the system as well as its acoustic properties …” „… complete system [1]. Despite the added weight of the gearbox, a significant reduction of the total mass of …” „… understanding of the system be-havior is necessary in order to validate its use as gear sampling material. An …”

K. Daubach, M. Oehler, B. Sauer Wear simulation of worm gears based on an energetic approach S. 329-342

„… . Dr.-Ing. M. Oehler, Prof. Dr.-Ing. B. Sauer, Institute of Machine Elements, Gears & Transmissions …” „… . Introduction Worm gears are used as transmission elements, where a high transmission ratio, a smooth operation …” „… Institute of Machine Elements, Gears & Transmissions for many years. In this context, a simulation tool was …”

E. Lothman, M. Hein, U. Steiner Increased load carrying capacity of gears through optimized steel performance, surface conditions and processes S. 637-650

„… 637Introduction Improving system performance is of interests to almost everyone in transmission …” „… making process affects the performance of components and whole systems; often however, limited by …” „… industry as well as for very high cycle pressure systems, such as fuel injection systems for diesel (Ölund …”

F. Muller, S. Schumann, B. Schlecht Innovative tooth contact analysis with non-uniform rational b-spline surfaces S. 171-184

„… realistic results regarding contact stress, tooth root stress and transmission error. 1. Introduction A …” „… bearing deflections of the surrounding system and to take these into account in the tooth contact …” „… polynomial degree ? ? 4 The Bernstein polynomials ? ? form a basis system of linearly independent functions …”

Y. Marchesse, M. Ruzek, F. Ville, P. Velex On windage power loss reduction achieved by flanges S. 665-676

„… high-speed gearing system the load-independent losses become prominent when peripheral speeds are above 100 …” „… publication in 1984, Dawson (1) showed that transmission efficiency is reduced by the air dragged by a …” „… : Proc ASME Power transmission and Gearing conference, 2000. 5. Computational fluid dynamics simulation …”

G. Hlebanja, M. Hriberšek, M. Erjavec, S. Kulovec Influence of the tooth flank shape on wear for a steel-POM gar pair S. 1295-1304

„… centre distance. Power transmission from the motors to the shafts is by belts. Motors are controlled by …” „… by 10 mm, depending on the tooth size. The measuring system resolution was set to 100 nm in vertical …” „… Transmissions, 2012. Mechanisms and Machine Science, Vol 13. Springer, p.83-98; https://doi.org …”

T. Matsumura, K. Mioki, M. Kada, R. Okuizumi, A. Pogačnik Improved calculation methodology for the prediction of tooth temperature of plastic gears S. 1237-1248

„… ratio, ? is the transmission efficiency, ? is the COF, ? is the gear ratio ? /? , ? and ? are the …” „… , and the transmission efficiency was calculated from the arithmetic mean of the torques for the final 5 …” „… and the CAE simulation, an experimental system was designed (shown in Fig. 2). One gear is fixed …”

B. Reetz, T. Munch, W. Kappeler Challenges for lead-free brass alloys in worm gears S. 1467-1488

„… known that lead has a positive impact VDI-Berichte Nr. 2389, 2022 1467on the tribological system …” „… situation the Fig. 23: Worm gear load capacity for different values of transmission ration [28] Fig. 22 …” „… transmission process. All that results in higher loadings and wear of the worm wheel. But there are also …”

A. Sitzmann, T. Tobie, K. Stahl, S. Hoja, S. Schurer Deep nitriding – contact and bending strength of gears with increased nitriding hardening depth S. 875-890

„… a Klingelnberg P40 3D coordinate measuring system. In addition, the gears of all the variants …” „… Power Transmission and Gearing Conference, American Society of Mechanical Engineers. [18] ISO …” „… systematically investigated. For this reason, knowledge about the load carrying capacity of nitrided gears with a …”

U. Kissling Generation of a torque spectrum from measured torque-speed-time data S. 533-544

„… drive system. The magnitude and frequency of these loads depend upon the driven machine, the motor, the …” „… dynamic mass elastic properties of the system and other effects [1]. These variable loads (stresses) may …” „… drive system, preferably accompanied by experimental testing to validate the calculation. In the …”

S. Matkovič, M. Kalin Effect of tribological properties on tooth root fatigue failure of polymer gears S. 1257-1268

„… Helix angle,° 0 0 Transmission ratio 1.29 Face width, mm 8 6 Normal-pressure angle, ° 20 20 Profile …” „… field in polymer spur gear transmissions, Mech. Mach. Theory. 133 (2019) 195–210. [11] C.M.C.G …” „… . Stahl, Potential of oil-lubricated cylindrical plastic gears, J. Adv. Mech. Des. Syst. Manuf. 12 (2018 …”

S. Vonderschmidt, A. Ott, A. Vonderschmidt High speed machining with magnetically geared driven tools on rotatory milling machines S. 1415-1428

„… , which can be elegantly solved with a magnetic transmission, such as bottle closing systems in the food …” „… , Horb am Neckar Abstract This paper presents a magnetic transmission based driven tool for CNC …” „… development of the basic design of the active part of the magnetic transmission. 1 Introduction In recent …”

S. Reitschuster, C. M. Illenberger, T. Tobie, K. Stahl Application of high performance polymer gears in light urban electric vehicle powertrains S. 1181-1196

„… polymer gears in power transmissions is increasingly gaining focus in current research and industrial …” „… this purpose, a new transmission concept is developed and investigated consid-ering the properties of …” „… polymer and steel materials. Therefore, modifications were applied to a series transmission to ensure …”

L. Hildebrand, F. Dangl, M. Sedlmair, T. Lohner, K. Stahl CFD analysis on the oil flow of a gear stage with guide plate S. 677-694

„… understanding of the system interactions and components is fundamental for optimal design. By means of …” „… , F.; Gorla, C.: Numerical modeling of the power losses in geared transmissions - Windage, churning …” „… transmissions with injection lubrication. Proceedings of the Institution of Mechanical Engineers, Part C …”

P. Roth, M. Hein, K. Stahl Scuffing load capacity calculation of worm gears S. 811-824

„… . The scuffing temperature is a characteristic parameter of a material-lubricant-system of a gear pair …” „… strongly on the heat dissipation properties of the gear box system [27, 28], the wheel bulk temperature …” „… Engineering Conference (IDETC/CIE) - ASME International Power Transmission and Gearing Conference (PTG) 10 …”

G. Klein New chamfer cutting solutions for cylindrical gears: gaining productivity and flexibility S. 1397-1410

„… , especially with edge load situations, material can break off and hardened particles can reduce transmission …” „… life and increase the potential for major damage causing premature transmission failure. This is of …” „… transmissions. Improperly chamfered and deburred gears can lead as well to unexpected, and undesirable, noise …”

N. Sagraloff, T. Tobie, K. Stahl Suitability of the test results of micropitting tests acc to FVA 54/7 for modern practical gear applications S. 469-484

„… influence on the micropitting resistance of a gear-lubricant-system. As a result, it is highly recommended …” „… of the lubricant can be divided into a system consisting of base oil and additive and the nominal …” „… gear-lubricant-system according to ISO/TS 6336-22 [20]. Since micropitting occurs under unfavorable lubrication …”

K. Stahl Foreword S. 1-2

„… subjects of the conference are the NVH-behavior and gear dynamics of geared transmissions. Furthermore …” „… contributions. With smart gear systems and condition monitoring approaches pioneering technologies are subject …”

A. Mihailidis, A. Psarros, I. Nerantzis FE tooth contact analysis of crossed helical gear drives considering misalignments and deviations S. 597-608

„… , Greece Abstract Crossed helical gear drives are easy to produce, they offer power transmission in …” „… pinion can be selected, allowing thus for a high transmission ratio in a compact gearbox. These features …” „… , Aristotle University of Thessaloniki, Greece Dr. Ιng. I. Nerantzis, BETA CAE Systems SA, Thessaloniki …”

W. Kassem, M. Oehler, B. Sauer, S. Schmidt, J. Hausmann Investigation of the time-dependent behavior of plastic gears with local tribological simulation S. 1281-1294

„… Elements, Gears & Transmissions, Technische Universität Kaiserslautern; S. Schmidt, M.Eng., Prof. Dr.-Ing …” „… force Δ? during operation of the gear transmission in the mixed friction region, the total tooth …” „… ) Accelerated lifetime testing of reinforced polymer gears. Journal of Advanced Mechanical Design, Systems, and …”

K. Yanagisawa, A. Weinmann Weight and cost reduction potentials with high performance polymers for gears S. 1019-1032

„… smallest transmission error, and highest root safety. This circumstance allows more flexibility in the …” „… air conditioning systems enables a 40 percent weight reduc-tion compared to conventional materials The …”

I. Moriwaki, K. Tatsuoka, K. Kobayashi, W. Nakamoto, D. Iba, A. Ueda Load-capacity evaluation of polyacetal (POM) internal gears according to JIS B 1759:2016 S. 1161-1172

„… Sharing in Planetary Transmissions: Model and Experiments, ASME Journal of Mechanical Design, Volume 130 …” „… higher rotation speed to permit higher toque to be obtained. Such systems require compact speed reducers …”

T. Arndt, J. Klose, M. Gerstenmeyer, V. Schulze Tool wear development in gear skiving process of quenched and tempered internal gears S. 1331-1344

„… . References [1] Stadtfeld, H. J.: Introduction to electric vehicle transmissions. Gear Technology, Vol. 37 …” „… compared to flood cooling, while the surface quality remained constant [11]. However, a systematic …”

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VDI Wissensforum GmbH - Drivetrain for Vehicles 2017

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M. Lamke, C. Rüchardt, M. Raeder ZF TraXon transmission system:Paths into the future S. 89-90

A. Tissot, T. Bosse, D. Heße Analytical process and KLT generation based on a Manual transmission dry clutch system S. 35-36

„… Analytical Process and KLT Generation based on a Manual Transmission Dry Clutch System Dipl …” „… manual transmission dry clutch system, have to be identified and processed to driver’s patterns …” „… ) creation based on an example of a manual transmission dry clutch. Characterization of driving pattern and …”

A. Lampe, U. Mettin Generic control approach for multimode-hybrid transmissions-Using a virtual dual clutch framework S. 145-146

„… Generic Control Approach for Multimode-Hybrid Transmissions Using a Virtual Dual Clutch …” „… Abstract Nowadays, the technological evolution of vehicle transmissions shows an increase of variants and …” „… concepts mostly due to electrification. Besides the development of transmissions with pure Parallel Hybrid …”

A. Uhle Actuation synthesis for new hybrid transmission application (DHT) S. 135-136

„… a suitable transmission actuation system. A newly developed, consistent simulation method makes …” „… it possible to analyze, evaluate and optimize transmission actuation systems in relation to …” „… can make a significant contribution to optimizing transmission shifting systems while at the same …”

T. Buchbarger Bondgraphsand Iransmission outpultorque control during gearshifl-lmproved shifl quality and reduced calibration effort for automalic Iransmission control using bond graphs S. 119-120

„… . The ZF 8HP70 automatic transmission is used as an example system. For a predefined shift quality …” „… graph models for transmissions Any dynamic physical system has a graphical representation as a bond …” „… . Rapid prototyping for control systems facilitates tests at the real system early in the development …”

P. Janssen, Y. Zhang Full hybrid planetary transmission with on demand actuation- FEV's newest member of the PREX transmission family S. 49-50

„… transmission systems, with exception of the power on demand actuation, altogether packaged as a hybrid …” „… Full hybrid planetary transmission with on demand actuation FEV´s newest member of the PREX …” „… transmission family MSc. Peter Janssen, MSc. Yi Zhang, Aachen 1. Zusammenfassung Im globalen PKW …”

A. Reut, R. König, S. Rinderknecht Overall optimizalion of electrodynamic shifling syslems- Optimization and improvement ofthe electrical path, mechanical path and conlrol by a new development approach S. 125-126

„… durchgeführt werden. Abstract The internal shifting system of a transmission has a significant influence …” „… on the dynamics, costs and comfort of the transmission. A comprehensive study of the shifting system …” „… . VDI-Berichte Nr. 2313, 2017 125 Motivation The internal shifting system of a transmission has a high influence …”

M. Jordan, D. Kupka, P. Tenberge Control of e-motor-assisted shiftings in dedicated hybrid transmissions S. 77-78

„… ". Continuously variable hybrid transmission systems offer many possibilities for optimising the operating points …” „… Control of e-motor-assisted shiftings in dedicated hybrid transmissions Mick Jordan M.Sc …” „… Varianten der heute auch als „Dedicated Hybrid Transmission“ bezeichneten Getriebe zu untersuchen …”

M. Theobalt, H. Mahe, C. Lopez Perez 3 cylinders and cylinder deactivation: which dampening challenges? S. 83-86

„… , Carlos Lopez Perez, VALEO Transmissions Systems ABSTRACT CO2 emission regulation leads OEM …” „… these trends for the clutch dampening system’s architecture. - to focus on 2 examples, showing new …” „… mainstream, whatever the transmission type. Current technical bricks such as pendulum dampers have to be …”

M. lshihara Camparisen of P2 hybrid DCT actuation control system - An evaluation of Integration complexity, energy consumption and cost S. 121-122

„… consumption by transmission System cost is the key differentiator to Power-split hybrid architecture Minimize …” „… first hybrid powertrain system for mass production vehicle in 1997, various hybrid powertrain systems …” „… becoming more popular powertrain solution next to dedicated-hybrid-transmission systems in recent years …”

K. Muehlbauer, D. Schoeneberger, R. Pohlmann, W. Hackmann, H.-P. Feustel, E. Achleitner, M. Schweizer-Berberich, C. Schmidt, S. Rinderknecht Lew cost plug-in powertrain- Plug-in for the mass market S. 75-76

„… steht für eine Applikation einer sogenannten Dedicated Hybrid Transmission (DHT) [1]. Drittens wird ein …” „… , which mainly reduces the cost of the powertrain system dedicated to price sensitive markets like China …” „… . Secondly, the electrified powertrain is used to simplify the transmission. The conventional launch element …”

U. Reichert, A. Albers, K. Wolter, T. Pinner, S. Ott A new approach for the investigation of synchronizations by different shifting characteristics S. 65-66

„… , electric and hybrid transmissions. Prof. Dr.-Ing. Dr. h.c. A. Albers, Dipl.-Ing. U. Reichert, M.Sc. K …” „… , synchronization units are used in passenger car transmissions. The load and wear of the synchronizer rings used …” „… synchronization time is set directly on the shift knob in manual transmissions and is dependent on the respective …”

O. Coppin 12+12V and 12+48V hybridization: A modular approach and transmission Impacts- Enhancing low voltage hybridization road map S. 23-24

„… of the systems integration in vehicle which can be a significant part of the total system …” „… then explain how to enhance the low voltage roadmap and analyze the impact on transmissions systems …” „… 12+12V and 12+48V Hybridization: a modular approach and transmission impacts. Enhancing low …”

M. Grumbach Advancement in transmission- and hybrid technology to meet future market conditions S. 11-12

„… transmission modules and hybrid systems. Furthermore, anticipatory shift programs/shift functions will also …” „… system portfolio, the article describes the influence of the individual systems on fuel …” „… number of gears and ratio spread of the transmission systems. Although it is clear that all markets …”

M. Horn, U. Griesmeier, B. Vahlensieck New concepts for plug-in hybrid and parallel range-extender transmissions – The next big step of powertrain electrification S. 17-18

„… essential challenges for the systematic search and holistic evaluation of these electrified transmission …” „… New Concepts for Plug-In Hybrid and parallel Range-Extender Transmissions The Next Big Step …” „… . Abstract In this paper Dedicated Hybrid Transmissions for Plug-in Hybrid vehicles and Range- Extender …”

C. Danzer, J. Liebold, E. Schreiterer, J. Mueller Modular low-cost powertrain platform for HEV and EV S. 19-20

„… für Elektro- und Hybridfahrzeuge entwickelt. Das System basiert auf einem einheitlichen Radsatz …” „… electric and hybrid vehicles. The system based on one unity gear set for up to three speeds, which …” „… powerful hybrids. The derivable hybrid powertrains of the platform system is designed for 48V electric …”

G. Goch, Y. Peng, K. Ni, A. Günther Optical and areal measurements and evaluations of cylindrical gears S. 31-32

„… and process improvement. The decisive nature of the gears in vehicle transmission systems require a …” „… automobile gear can be measured in a few minutes, however, for large gears (e.g. in wind energy system [3 …”

M. Weiss, T. Witzemann Flexible eieeirenies Integration platform for future Iransmission applications S. 123-124

„… the transmission housing and improves the quality of the system. Reduced complexity regarding …” „… Flexible Electronics Integration Platform for future Transmission Applications Dipl.-Ing …” „… as Electronic Modules) are used in many transmissions. The integration provides advantages regarding …”

S. Reisen, W. Novak, M. Burgbacher, M. Stockmeier, T. Kamstock The new AMG SPEEDSHIFT MCT 9-speed sports transmission from the Mercedes-Benz automatic transmission family S. 59-60

„… reinforcements and adaptation measures to the existing modular transmission system. The nine forward speeds and …” „… transmission is a specific extension of the modular system of the Mercedes-Benz family of automatic …” „… The New AMG SPEEDSHIFT MCT 9-Speed Sports Transmission from the Mercedes-Benz Automatic …”

M. Bhai, X. Shan Design of a hybrid mode and shift coordinator [hmsc] for the central control software of a range extender powertrain S. 137-138

„… comprises a DHT [1] with two parallel sub-transmissions. Each electric traction machine is coupled to a …” „… two-speed sub-transmission and their torque is aggregated at the final drive. The electric traction …” „… software (SW) will be tested using a prototype transmission and electric traction machines on a powertrain …”

T. Pfund, T. Biermann, M. Gramann Electric axle drives -Scalable propulsion system for electrified powertrains S. 55-56

„… trend towards the integration of the transmission, electric motor and electronic power system in one …” „… Electric Axle Drives Scalable propulsion system for electrified powertrains Dipl.-Ing. Thomas …” „… lightweight differential, transmission solutions of high performance density can be presented in a coaxial or …”

C. Glühmann, H. Huang, R. Knoblich Modelling, simulation and optimisation in the development of transmission control units S. 133-134

„… Modelling, Simulation and Optimisation in the Development of Transmission Control Units Prof …” „… of transmission control units, the gearshift calibration of an automated manual transmission is …” „… , compared with today's multiplying number of variants in vehicle-engine-transmission combinations and …”

R. Tull de Salis, J. Farssell, T. Stalfors A48-400V Ofi-Axis P2 hybrid module with minimal Impact on powertrain length -Joint development between Volvo cars and BorgWamer S. 25-26

„… Li-ion battery, DC-DC converter and cooling system. The starter, alternator and 12V battery are deleted …” „… system is packaged in the engine compartment, close to the e-machine. The P2 module fits Volvo Cars …” „… entire engine range and transmission range, without the need to move the engine and transmission apart …”

A. Weidler, H. Beitler, S. Lassi, U. Keller Clutch protection function- Clutch design one size smaller!? S. 71-72

„… today's passenger cars with an internal combustion engine and manual transmission, the single-plate dry …” „… the clutch to slip, thus preventing it from rolling back. The upshot is reduced torque transmission …” „… mechanism. The system presented here operates solely using intelligent software, without the need for any …”

F. Roos, O. Flärdh The next generation active prediction based powertrain control strategies- Utilizing the vehicle's kinetic energy as energy storage S. 107-108

„… system have been in production since 2012. The heart of the system is the map-database containing …” „… gradient information of just about all roads in Europe. The control system uses the road gradient data to …” „… strategies are then evaluated over the horizon and the most fuel-efficient one is selected. The system has …”

G. Hellenbroich, I. Steinberg, D. Freiholtz Efficient and industrialized dual clutch transmission family for powertrains up lo 350 Nm S. 7-8

„… Efficient and Industrialized Dual Clutch Transmission Family for Powertrains up to 350 Nm …” „… similar transmission architectures and including end-of-line test procedures. The transmissions use …” „… excellent overall efficiency levels on par with the ones of contemporary dry dual clutch transmissions. The …”

S. Herber PHEVplus- Efliciency-raising DHT* for plug-in hybrid applications S. 15-16

„… automotive powertrain components such as transmission systems. The name of this overall funding programme is …” „… systems (CVJ-, AWD-, eDrive Systems and Trans Axle Solutions), has worked out an advanced transmission …” „… transmission for Plug-in Hybrid Electric Vehicles (PHEV) within a holistic optimised drive train. Compared …”

M. Hein, C. Kunze, J.-K. Lee, T. Tobie, K. Stahl Customer-focused modular lest procedure for driveline#components S. 41-42

„… it is possible to validate torque transfer subsystems of various transmission systems with regard to …” „… for product validation of major manual transmission programs at GM replacing various regional test …” „… spectra for dedicated vehicles and drivers. For exemplary chosen manual transmissions, the torque …”

J. Müller. J. Liebold, C. Danzer From customer requirements lo the optimal hybrid powertrain – High-performance hybrid transmission for future plug-in hybrid drives S. 39-40

„… transmission for future plug-in hybrid drives Dr. Joerg Müller, Jens Liebold, Dr. Christoph Danzer, IAV …” „… , e-motor(s), ICE, transmission) to fulfil today’s customer requirements in a best possible way by using …” „… specialized tools like “Transmission synthesis” and “E-motor synthesis” find the right solutions which fulfil …”

N. lkeda Development of a new torque converter clutch control using Engine-CVT harmonized control S. 63-64

„… Ikeda, JATCO Ltd, Atsugi, Japan Abstract For automatic transmissions and continuously variable …” „… transmissions, torque converters provide good driving performance, especially during launch acceleration …” „… engine control have been well harmonized during launch. And Systems Engineering was used in the …”

doi.org/10.51202/9783181023136

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (Hrsg.)

International Conference on Gears 2017

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W. Wang, L. Han, Q. Yan, C. Xiang, Y. Li Research on the dynamic power split characteristics and the electric power coordinated control for a hybrid transmission system S. 131-142

„… design of a novel power split hybrid transmission system[J]. Journal of Mechanical Engineering, 2009 …” „… for a hybrid transmission system Dr. Weida Wang, Dr. Lijin Han, Prof. Qingdong Yan, Prof …” „… power-split hybrid transmission system can enhance the fuel economy by adjusting the engine operating points …”

J. Champain, S. Dalle, M. Octrue Simultaneous experimental characterization of dynamic transmission error to noise and vibration behavior of a gear system under load S. 953-962

„… correlation between Transmission Error and radiated noise emitted by a gear system. The scope is also to …” „… transmission error measurement for relatively high rotation speeds requires performant measurement systems …” „… Simultaneous experimental characterization of dynamic transmission error to noise and vibration …”

M. Hein, T. Tobie, K. Stahl Test method for time-scaled fatigue tests of gear transmission systems S. 1073-1084

„… Test method for time-scaled fatigue tests of gear transmission systems Dipl.-Ing. Michael Hein …” „… . In this paper, an extensive test methodology for time-scaled fatigue tests of transmission systems …” „… transmissions - Systemlebensdauerprüfung: verkürztes testverfahren für Getriebe in Kraftfahrzeugen. VDI-Bericht …”

Y. Wang, B. Peng, G. Liu, L. Liu Design of transmission accuracy of the involute cylindrical gear-worm gear system under large temperature difference based on FE method S. 491-502

„… Design of Transmission Accuracy of the Involute Cylindrical Gear-Worm Gear System under Large …” „… thermal deformation. The main factors affecting transmission error of the gear-worm system mainly …” „… transmission of the movement. 2. The structure and working principle of the transmission system An example …”

Y. Cai, L. Yao, Z. Xie, J. Zhang, C. Peng Influence analysis of system parameters on characteristics of the nutation drive with double circular arc spiral bevel gears S. 435-446

„… transmission ratio analysis of single-stage and two-stage nutation drive systems, the system parameters …” „… transmission system have important guiding significance in the design, manufacture and application of …” „… transmissions. This paper focuses on influence of system parameters on the characteristics of a specific type …”

J. Yu, L. Yao, C. Ren, X. Yan, L. Lin Design and experimental validation on a novel tow speed transmission for electric bus S. 97-108

„… the drive system with proposed two-speed transmission, a bench test and a real driving cycle on …” „… mass [1]. However, compared to the single-speed gearbox transmission system, a two-speed gearbox …” „… transmission system with the characteristics of vehicle drivability and high VDI-Berichte Nr. 2294, 2017 97 …”

M. Shuai, M. Shuai, J. Guoguang, Z. Yidu, L. Chao, H. Haruo Research on multiple-split load sharing characteristics of 2-stage external meshing star gearing system S. 769-782

„… meshing planetary transmission system is widely used in aviation and special precision transmission field …” „… star transmission system as its reducer. Reducer is located in the engine head, installed in the …” „… intermittent lubrication of planet gear. The transmission system uses two-stage fixed-axis external meshing …”

J. Neufond, Y. Xu, J. Perret-Liaudet, E. Rigaud The iterative spectral method for computing the planetary gear dynamic response S. 209-218

„… In order to simulate and compute the stationary coupled dynamic responses of the transmission system …” „… basis computed from the mean characteristics of the system, this method is derived in the frequency …” „… planetary gears multi-degree-of-freedom modelling is built. Eigenmodes, dynamic transmission errors and …”

A. Carbonelli, J.-Y. Guerder Computing and minimizing the whining noise – Application to a bogie gearbox S. 517-526

„… static transmission error (STE) and gear mesh stiffness fluctuations are responsible of noise radiated …” „… . All that procedure is here applied to a complete gearbox bogie, with two stages of meshes. The system …” „… main source corresponds to fluctuation of the static transmission error (STE) of the gear which …”

Y. Shen, S. Rinderknecht, M. Hoppert General modelling method of power losses in transmission with parameter identification S. 905-916

„… General Modelling Method of Power Losses in Transmission with Parameter Identification M. Sc …” „… publications concerning the calculation of power losses specifically for one transmission component such as …” „… , selected and combined to obtain the resulting efficiency map of a complete gearbox system. This paper …”

Titelei/Inhaltsverzeichnis S. I-XXVII

„… Q. Yan, transmission system C. Xiang, Y. Li Page Gear Endurance – Micropitting and Tooth Flank …” „… Planetary Gear Systems – Design and Analysis S. Grützner Holistic simulation of gearboxes – system …” „… method for time-scaled fatigue tests of gear 1073 T. Tobie, transmission systems K. Stahl D. Strasser …”

T. Saito, K. Miyamoto Traction drive analysis identified with rheological friction property of traction fluid S. 1185-1190

„… Simulation Methodology of Half-toroidal IVT Variator System with Feedback Control,” Dassault Systemes …” „… with experimental data. Since half-toroidal CVT variator system was required to analyze simultaneously …” „… transmission efficiency of a half-toroidal CVT variator, and also enabled visualization of frictional force …”

P. Garambois, E. Rigaud, J. Perret-Liaudet Robust optimization of gear macro and micro-geometries in order to minimize static transmission error and gear stiffness fluctuations S. 927-938

„… Robust optimization of gear macro and micro-geometries in order to minimize static transmission …” „… minimize the Static Transmission Error (STE) and the mesh stiffness fluctuations generated by the meshing …” „… stiffness and transmission error fluctuations of each gear

B. Leupold, V. Janzen, G. Kotthoff, D. Eichholz Validation approach of PM gears for eDrive applications S. 119-130

„… manufacturing technologies are, for example, the need for system downsizing in transmissions and differentials …” „… manufacturing and system validation Knowing that the performance requirements for this type of transmission …” „… gear technology for transmission and drivetrain systems“, Proc. of 5th International CTI Symposium …”

S. T. Ping, Y. M. Shao, L. M. Wang, H. W. Li, J. Xu, Y. Cheng, J. Liu The influence of mesh misalignment on planetary gear set with time-varying mesh stiffness S. 219-230

„… planetary gear set which may lead to some initial failures and fatigue life reduction of the gear system …” „… misalignments on dynamic transmission errors (DTE) and dynamic responses are studied based on the proposed …” „… dynamic model. Keywords：mesh misalignment, planetary gear set, transmission error, dynamic factor 1 …”

C. Zhang, H. Liu, C. W. Yao, Y. Li Study of vibration for spur gears of tooth profile modification and experimental validation of modification method S. 527-538

„… parts can be damaged seriously, which leads to the failure of the transmission system [1,2]. The …” „… system[J].Mechanism and Machine Theory 105 (2016) 606–619 VDI-Berichte Nr. 2294, 2017538 …” „… system is established. Firstly, simulation analyses of dynamic model are performed for gears of …”

B. Guilbert, P. Cutuli, P. Velex Hybrid dynamic model of hollow thin-rimmed gears S. 623-634

„… design. 1. Introduction Helicopter transmissions require high-speed lightweight gears and hollow …” „… transmissions as they mostly rely on solid pinion and gear models. More recently, several attempts have been …” „… into the system as: M C K (6) with 125.0s and 62.5 10 s ( M and K being the …”

R. Weidig Adoption of polymer gears – Challenges and solutions S. 1565-1574

„… requirements in an engine system where temperatures range from -40°C to 150°C. The gears in engine systems …” „… reduction and improving system performance and functionality. In areas like window lifters, door locking …” „… aggressive engine or transmission fluids engineering polymers no longer deliver the required performance in …”

E. Rigaud, P.-H. Cornuault, B. Bazin, E. Grandais-Menant Prediction of the vibroacoustic response of an electric window-lift gear motor S. 635-648

„… rotor mechanical imbalance, the worm gear static transmission error and mesh stiffness fluctuations and …” „… transmission error STE(t) and mesh stiffness fluctuations k(t) of the worm gear The meshing between the worm …” „… and the gear wheel generates an excitation corresponding to the static transmission error (STE …”

C. Peng, C. Li, B. Chen Development of a test rig for transmission performances of precision planetary reducer S. 1127-1132

„… mechanism and sensor system. The variation in reducers loading is achieved by serial transmission mechanism …” „… Development of A Test Rig for Transmission Performances of Precision Planetary Reducer Changyan …” „… Peng, Chaoyang Li, Bingkui Chen, State key laboratory of mechanical transmission, Chongqing …”

L. Zhao, R. C. Frazer, B. A. Shaw The influence of overlap ratio on transmission error in parallel axis gears S. 939-952

„… cost of both running and manufacturing of mechanical power transmission systems because of their high …” „… Systems Ltd [9]. Transmission error was validated by measuring dynamic bearing loads at nominal operating …” „… The influence of overlap ratio on transmission error in parallel axis gears Layue Zhao …”

X. Gou, L. Zhu, C. Qi Modelling of a gear-rotor system considered tooth contact temperature and its dynamic characteristics S. 1177-1184

„… transmission system. We can see from Figure 2 that the maximum teeth flash temperature increases with the …” „… Modelling of a gear-rotor system considered tooth contact temperature and its dynamic …” „… system, a generalized nonlinear dynamic model of a gear-rotor system is established, where the factors …”

S. Stoyanov, V. Dobrev, A. Dobreva Investigating dynamic behavior of planetary gear trains through the systematic approach S. 197-208

„… simultaneously application of the systematic approach and the software system ABAQUS by the solving the problem …” „… Abstract In comparison with parallel shaft power transmission designs, planetary gear trains possess …” „… efficiency, relative high transmission ratios. The frequency analysis is especially significant for the …”

B. Kianian, C. Andersson Sustainability-conscious Powder Metallurgy gear manufacturing – An analysis of current manufacturing challenges S. 1251-1264

„… ]. The gear and transmission component manufacturing industry is an important sector as it provides one …” „… ]. The state of the art manufacturing scheme for transmission parts is by turning, milling and finishing …” „… a truck transmission notch, where a side-by-side comparison between machining and PM is performed …”

J. Fechler, M. Böhm, S. Aberle, V. Merz A contribution to the NVH behavior of plastic gears in automotive applications S. 1531-1540

„… and the surrounding system on the acoustic impression are shown. Beside a correct acoustic design of …” „… the gears and the surrounding system the mass production of plastic gears is a challenge, especially …” „… applications in the car. Seat adjusters, electric parking brakes (EPB), electric power steering system (EPS …”

L. Liu Tooth contact analysis of a new type of face gear drive S. 457-466

„… features: The geometrical transmission error is identically equal zero when it is installed correctly. It …” „… the normal coordinate system a a a a aS O X Y Z as follows VDI-Berichte Nr. 2294, 2017458 …” „… gear tooth can also be obtained. The coordinate system c c c c cS O X Y Z is introduced, which is …”

M. Takahashi, T. Itagaki, N. Maeda, H. Takahashi Evaluation of developed micro-gear endurance test system and basic study on load-carrying characteristics of micro-spur-gears S. 243-252

„… Evaluation of developed micro-gear endurance test system and basic study on load-carrying …” „… micro-gear of module 0.2 mm. Furthermore, the performance of the developed micro-gear endurance test system …” „… system to conveniently perform micro-gear endurance tests. Then, we measured the minimum applied torque …”

H. Hansson, H. Alm, A. Eng, M. Olsson Beveloid gears in planetary gear trains for increased Grundström, power density and reduced backlash Stensson, S. 579-590

„… : Model and Experiment”, 1999 Transmission and Driveline Systems Symposium, March 1-4, 1999, Detroit …” „… . Eng. ME. Hans Hansson, Henrik Alm Grundström, Swepart Transmission AB, Liatorp, Sweden; Alexander …” „… system, difference in gear tooth thickness between the planet gears and position of the planet gears …”

D. Talbot, A. Kahraman Simulation of gear wear using a dynamic load distribution model S. 5-16

„… ] Wang, J., Li, R., Peng, X., “Survey of nonlinear vibration of gear transmission systems,” Appl. Mech …” „… influence of surface wear on the resultant dynamic behavior in the form of dynamic transmission error, and …” „… contact stress. Likewise, the impact of dynamic loading at or away from system resonances on surface …”

E. Chiappetta, D. Morrey Non-standard spur gear tooth profiles for improved epicyclic gear system performance in low speed applications S. 825-834

„… transmission systems, the concept of high torque density, which means carrying more torque within the same …” „… Non-Standard spur gear tooth profiles for improved epicyclic gear system performance in low speed …” „… terms of centre distance and transmission ratio, the simultaneous influence of pressure angle and …”

M. Daffner, M. Otto, K. Stahl Elastic deformation of a hypoid gearbox – Measurements on a static test rig to validate the calculated elastic deformation behavior S. 683-694

„… Model for the Complete Transmission System. SAE transactions - Journal of Passenger Cars (2002), p …” „… the system shaft-bearing-housing. Most of the calculation programs use analytical approaches. The …” „… have been made to validate the calculated elastic deformations of the shaft-bearing-housing system …”

A. Kahraman, H. Ligata Effects of external splines on deformations of ring gears of planetary gear sets S. 341-352

„… unique challenges stemming from a number of system-level issues. One such issue is the rim deflection …” „… small truck transmission was adapted as the test planetary gear set in this study. Parameters of this …” „… out without a need for a slip ring. A measurement system that incorporates measurement and …”

G. Eitzinger Adaptive coatings on gears for NVH improvement S. 1439-1450

„… overlapping tolerances. Caused by engine acyclic rotational speed changes, gears in engine and transmission …” „… the running-in period of the system the coating wears off in the overloaded areas thereby adjusting …” „… mechanically the gear clearance. This improves the NVH behavior of the whole system. Further reduction of the …”

K. Matsuo, Y. Suzuki, K. Fujiki Accuracy analysis of workpiece and tool in the hobbing process using Taguchi Method S. 1331-1342

„… . Kouji Matsuo, Hardware System Development Department, JATCO Ltd, Kanagawa, Japan; Dr.-Ing. Yoshitomo …” „… Engineering Department, JATCO Ltd, Shizuoka, Japan Abstract Automotive transmission gears are …” „… manufacture low-noise gears at low cost for use in automotive transmissions. In order to meet this …”

C. Weber, T. Tobie, K. Stahl Investigation on the flank surface durability of gears with increased pressure angle S. 173-184

„… examined experimentally. Optimization goals were the power to weight ratio of the transmission and the …” „… hobbing tools the broad application of this toothing is due to its uniform transmission of motion. This …” „… application of special involute gears with an increased pressure angle in industrially running transmissions …”

B. Černe, D. Zorko, J. Duhovnik Semi-analytical method for the prediction of the flank temperatures of polymer gears during running S. 1611-1624

„… obtain a more thorough overview of the system’s behaviour. A transient numerical VDI-Berichte Nr. 2294 …” „… geometry parameters Parameter Symbol [unit] Value Transmission i [/] 1 Module m [mm] 1 Number of teeth …” „… defined in terms of a common coordinate system, where the x-axis overlaps with the sliding edge. Hence a …”

G. Hlebanja, S. Kulovec, D. Zorko, J. Hlebanja, J. Duhovnik Influence of the tooth flank shape on thermal load of the gear S. 1583-1592

„… Thermal load has a detrimental effect on the power transmission of a mating gear pair for all types of …” „… . Experimental results The experimental system and layout has already been described in detail e.g. in [10 …” „… ) Influence of axis distance variation on rotation transmission in S-gears : example on heavy duty gears …”

E. Maier, A. Ziegltrum, T. Lohner, K. Stahl Characterization of TEHL contacts of thermoplastic gears S. 1483-1496

„… thermal and mechanical properties limit its applications to low-load motion transmissions. Research has …” „… . Thus the transmission of higher loads and speeds is enabled [2]. As failures like pitting and chipping …” „… region is classified by a system parameter ∈ 0.1,2.2 [8]. Each region features characteristic …”

S. Jain, B. James A simulation approach to calculate gear dynamic-factors for high-speed applications S. 649-658

„… factors for high-speed gears. We also investigate the influence of system resonances, model fidelity …” „… torque and system dynamics are generally ignored. In order to predict the life of a gear, it is …” „… loads. These models only consider the torsional dynamics of the system and ignore the shaft bending and …”

S. Grützner Holistic simulation of gearboxes – system simulation S. 51-60

„… interactions with other (e.g. electrical) systems using physical models when designing the mechanical system …” „… all sorts of systems make it possible to quickly create and parameterize system simulation models …” „… Holistic Simulation of Gearboxes System Simulation Dipl.-Ing. Sebastian Grützner, ESI ITI …”

C. Hasl, P. Oster, T. Tobie, K. Stahl Bending strength of oil-lubricated cylindrical plastic gears – Modified bending strength calculation based on VDI 2736 S. 1649-1660

„… gears enable significantly higher power transmission compared to dryrunning gears. One of the most …” „… of the stiffness divided by the mass of the system under consideration [2][3]. Because of the low …” „… , 2013. [6] Thoma, F. Lastübertragung im verformten System Lager-Welle-Zahnrad. Ph.D. thesis, FZG / TU …”

F. Yang, W. Bi Efficiency evaluation of multi-speed transmission S. 1101-1108

„… of the system. Finally, a nine-speed automatic transmission with planetary gear trains in Figure 1 …” „… Efficiency evaluation of multi-speed transmission Prof. F. Yang, Dr. W. Bi, School of mechanical …” „… multi-speed transmission is proposed. Load dependent/load independent power losses of each component and idle …”

F. Concli, C. Gorla Numerical modeling of the churning power losses of gears: an innovative 3D computational tool suitable for planetary gearbox simulation S. 881-892

„… reliability of the system can benefit of a power loss reduction. Furthermore, the majority of the gearboxes …” „… results impossible to estimate the global efficiency of the system also because the load independent …” „… Transmissions—Preliminary Results, ASME J. Mech. Des., 129(1), 128–133. [8] Walter, P., & Langenbeck, K., 1982 …”

P. Tenberge, D. Kupka, T. Panéro Influential criteria on the optimization of a gearbox, with application to an automatic transmission S. 253-266

„… transmission Prof. Dr.-Ing. Peter Tenberge, M.Sc. Daniel Kupka, Dipl.-Ing. Thomas Panéro, Ruhr-University …” „… , Bochum Abstract In the design of an automatic transmission gearbox, the variation of one parameter …” „… can result in different system performances due to the strong interdependencies among all components …”

A. Mihailidis, G. Korbetis, N. Drivakos, I. Nerantzis Finite element method based analysis of planetary gear systems considering backlash and manufacturing deviations S. 75-82

„… . Nerantzis, BETA CAE Systems Abstract The load carrying capacity of gear transmissions depends …” „… system featuring helical gears with backlash and manufacturing errors is used to demonstrate the …” „… smaller than the overall dimensions of the complete system. In a previous paper [1], the influence of …”

M. Brumm, H. Müller Cyber physical gear production system – Vision of industry 4.0 gear production S. 1209-1218

„… Cyber physical gear production system Vision of Industry 4.0 Gear Production Dr. Markus Brumm …” „… these figures several times into machine controls. The main cause is the heterogeneous system …” „… . It describes a concept for a gear production system called GearEngine what is the fundament for data …”

A. K. Shojaei, P. Volgers, M. Cassata Advanced modeling and experimental techniques for fatigue life prediction of plastic gears S. 1575-1582

„… . As an example, a simple plastic gear system is considered VDI-Berichte Nr. 2294, 2017 1577 next …” „… the gear system. 4. Conclusion Due to higher energy absorption properties of polymers compared to …” „… the authors. Operational behavior of a simple plastic gear system is examined, using the developed …”

K. Togai, N. Fujinaga A reduced order internal combustion engine model for transmission development S. 1191-1198

„… . Introduction A transmission is one of essential parts in a vehicle system to achieve best fuel economy and …” „… A reduced order internal combustion engine model for transmission development Dr. Kazuhide …” „… Abstract Internal combustion engine (ICE) torque model is required to evaluate transmission performance …”

P. Kauffmann, P. Schäflein, V. Heuer PM technology for the future powertrain S. 1289-1298

„… system property and solutions for world class quality require a system oriented analysis and design of …” „… , after case hardening is necessary for high quality gears. Transfer Case Sprockets and Transmission …” „… characteristics into account. Fig. 6: Transmission Error Characteristics of PM and Wrought Gears It …”

T. Nagumo, M. Ishizuka, Y. Satou, S. Matsumura, H. Houjoh Estimation of loaded static transmission error using vibration measurement under operating conditions in a two-stage helical gear reducer S. 857-868

„… Estimation of loaded static transmission error using vibration measurement under operating …” „… transmission error (STE) waveform by vibration measurement under operating conditions was applied to a …” „… [1,2]. The loaded static transmission error (STE) is widely used for evaluating gear mesh excitation …”

B. Schlecht, T. Schulze, K. Riedel Tooth contact analysis under load on double helical-geared planetary gearboxes S. 83-96

„… high gear transmission ratios with a small need of installation space and weight, since the loads are …” „… about the whole system with a detailed load distribution along the path of contact of all tooth …” „… , from 500 up to 60.000 rpm, as well as high transmission ratios, of up to 35 for two-staged gearboxes …”

U. Kissling, M. Stangl The documentation of gearbox reliability – an upcoming demand S. 1051-1062

„… with nominal load or duty cycles. To determine the reliability of the drive system, the transmission …” „… request a system reliability proof from the gearbox manufacturers. The AGMA committee reviewing AGMA 6006 …” „… component are very handy, it lacks an easy statement about the failure probability of the full system. This …”

C. Brecher, C. Löpenhaus, M. Schroers, T. Frech, P. Scholzen Optimization of NVH behavior of gears by alternative gear materials S. 539-552

„… process of transmissions, one quality criterion is the resulting noise emission of the powertrain due to …” „… made from steel can be correlated to the quasi-static transmission error. According to the noise …” „… generation chain, the transmission error leads to structure-borne noise, which is transferred through the …”

J. Papies Load distribution in planetary gears considering effects of manufacturing tolerances with a statistical approach S. 783-794

„… result in the load distribution of a transmission appear to be special multilayeredly because they are …” „… the mean values is much more interesting to exploit potential power reserves in the transmission and …” „… part should be decreased, but on the other hand the power density of the transmission is to be …”

T. Utakapan, B. Kohn, M. Fromberger, M. Otto, K. Stahl Evaluation of gear noise behaviour with application force level S. 695-706

„… Source Dimension Quasi-static Loaded Transmission Error Calculation / Assessment Displacement Tooth …” „… Force Excitation Calculation Force Dynamic Tooth Force Calculation Force Dynamic Loaded Transmission …” „… ]. These technical measurements range from a quasi-static loaded transmission error during the design …”

M. Ophey, F. Klocke, C. Löpenhaus Approach for modeling grinding worm wear S. 1365-1378

„… wear data. 2. State of the Art Tribological system of grinding The tribological system can be …” „… understood as a system with forced internal interactions between the elements of the system by an externally …” „… Tribological System [10] The stress complex consists of normal force Fn, the relative velocity v between the …”

H. Yakaria Gear Data Exchange (GDE) – goLive S. 1235-1246

„… data between transmission manufacturers and their tool, machine and part suppliers. In this paper …” „… Integrated Gear Quality System In the course of the digitalization in the gear production, ZF has …” „… developed a full integrated gear quality system “gear4ZF” which uses GDE as the standardized gear data …”

R. Saito, Y. Suzuki, K. Matsuo The effect on tooth root breakage strength of tooth root shapes resulting from differing hobbing conditions S. 733-740

„… conditions Ryohei Saito,Dipl.-lng. Kouji Matsuo, Hardware System Development Department, JATCO Ltd …” „… reductions in vehicle transmission weight and size. Engine torque has also been increased to enhance vehicle …” „… reliability of transmission gears under more severe operating conditions than in the past. Gear durability …”

Y. Zhao Curvature interference characteristic of conical surface Enveloping Spiroid S. 835-844

„… systems of nonlinear equations iteratively [9]. During solving the preceding system of nonlinear …” „… of computing the curvature interference limit line is to solve the system of nonlinear equations. A …” „… to study the existence of the solution of a system of nonlinear equations and to solve all the …”

G. Goch, K. Ni, Y. Peng, A. Günther Paradigm change in cylindrical gear metrology using areal measurement and evaluation S. 1025-1038

„… automotive and various industrial transmission systems. They have to meet high accuracy requirements in …” „… system [3] might need one hour or more of inspection time with a tactile measurement. Moreover, complex …” „… system: a) gear sample clamped on a rotary table, b) point clouds captured by the optical sensor. 2 …”

A. Miltenović, M. Banić, Ž. Mišković, R. Mitrović, V. Miltenović Prediction of heat generation in transmission bearings by application of FEM S. 1199-1208

„… Prediction of Heat Generation in Transmission Bearings by Application of FEM Assis. Prof …” „… transmission. Because of the rise in temperature due to heat generation, appearance of dilatation adversely …” „… generation in transmission bearings was proposed. 1. Introduction Problems relating to the …”

M. Nakagawa, D. Nishida, D. Sah, T. Hirogaki Development of novel test stand for three-axis driving planetary gear train control and analysis of novel PGT for noise reduction S. 331-340

„… , assuming the PGT as a mechanical continuously variable gear ratio transmission. INTRODUCTION Although …” „… different meshing conditions such as internal meshing and external meshing. Planetary type transmission …” „… varying gear ratio transmission. In the Ztype PGT, the rotation and revolution of the planet gear are on …”

B. Kohn, T. Utakapan, M. Fromberger, M. Otto, K. Stahl Flank modifications for optimal excitation behaviour S. 1319-1330

„… compensate for the transmission error provide an alternative approach. Since these modifications just shift …” „… distribution with respect to the elastic deformations of the system and thus consist of various combinations …” „… regarding the NVH goals. The main target for a silent mesh design is a constant transmission of motion over …”

C. Andersson Grinding or shaving? – Performance based economic decision support in the manufacturing of gears S. 1353-1364

„… , S., Guerrero, F., Onieva, L. (2000) A flexible costing system for flexible manufactu-ring systems …” „… system. Manufacturing strategies often encompass a bundle of decision associated with operational …” „… , especially in the manufacturing system. There are a number of methods for cost calculations (that will be …”

V. Angelopoulos, M. Hirsch PM gear rolling simulations using advanced plasticity material model and improved initial conditions S. 1277-1288

„… degrees of freedom is fixed. Fig. 6 shows the kinematics of the system. Fig. 6: Schematic of the gear …” „… Motion and Power Transmissions(MPT2017:JAMDSM) [11] KISSsoft AG, Calculation software for machine design …” „… . 377, (ed. P. Suquet), pp.70, 61–130,1997, Springer-Verlag [7] ABAQUS , Dassault Systèmes, Providence …”

X. Kai, L. Guolong A compensation method of tooth surface error in continuous generating grinding based on the virtual-axis S. 1153-1160

„… virtual-axis Xu Kai, Li Guolong, The State Key Lab of Mechanical Transmission, Chongqing University …” „… specific steps are followed: (1) Each motion axis is defined in the electronic gearbox system, including …” „… process is performed in the virtual axis system. The method proposed combines the error equivalent model …”

T. Jurkschat, T. Lohner, K. Stahl Improved calculation method for load-dependent gear losses S. 893-904

„… gears are frequently used for the transformation of torque and speed. Power transmission always …” „… based on a four-bearing test unit and uses a variable-speed drive and loss torque measurement system to …” „… geometrical gear parameters and flank modifications on the load-dependent gear losses systematically based on …”

T. Schöler, H. Binz, M. Bachmann Method for the pre-dimensioning of beveloid gears – Efficient design of main gearing data S. 565-578

„… marine transmissions – see Fig. 1. In addition, beveloid gears with parallel axes and opposed cone …” „… pre-dimensioning. Only with high tooth numbers as in turbo transmissions or with case-hardened gears are tooth …” „… located at mid face width. Furthermore, the transmission error is zero in an unloaded condition …”

H. J. Stadtfeld Pentac®Mono-RT high performance face milling cutter heads S. 1113-1118

„… blade system are: ► The separation of the inside and outside cutting to two different blades which …” „… system is higher than the part quality of the full profile blade system. In order to realize the …” „… cutter system to also cover a wide range of different bevel gear designs and modules, the blade seating …”

K. Mao, V. Goodship, N. Madhav, R. Ramakrishnan, P. Langlois Experimental Investigations of Polymer Composite Gear Performance S. 1625-1636

„… transmission, especially within automotive engineering. This paper presents an extensive experimental …” „… ]. As a result the use of polymer composite gears in power transmission is limited due to the lack of …” „… recording wear measurements. Wear and life are recorded on a data-logging system using a dedicated …”

C. Brecher, C. Löpenhaus, J. Pollaschek Influence of surface layer properties on tooth root bending strength of cylindrical gears S. 421-432

„… electric mobility, where high ratios and low overall transmission weight are demanded. Higher-order …” „… . In conclusion, it can be stated that the system behaviour of the Inclusion-Based Weakest Link Model …” „… non-module-specific system parameters can be identified. This is for example the case depth, which, by its non-linear …”

B. Schlecht, C. Ulrich, J. Bräunig Investigations on the influence of anisotropic material properties of gear teeth on their macroscopic behavior S. 659-668

„… transmissions. The new production process for gears implies a different component behavior, which has to be …” „… under different loads. The load is applied through a spindle system with cup springs and measured by …” „… – guiding pin 5 – rigid frame 6 – shaft DMS – strain gauges Fig. 6: Sectional view of the load system of …”

M. Koop, E. Melnikov, V. Merz Design investigations and indications for acoustical optimized gear meshes using plastic gears S. 1519-1530

„… transmission of circular motion in a perfect shaped and ideal stiff gear mesh would be perfectly steady …” „… . However, in a real gear mesh the transmission is not perfectly steady [1, 5]. This is caused by changes …” „… steady transmission, because as can be seen in figure 1, the lever arm at position 1 for the plastic gear …”

P. Norgauer, W. Sigmund, D. Kadach, K. Stahl Comprehensive simulation methods for crossed helical gear sets with the main focus on the calculation of contact patterns S. 353-362

„… to check the gear stage for possible transmission errors. Furthermore, a method for calculating the …” „… tooth contact result in a complex system of equations. This system is described by the …” „… shafts as well as the elasticity of bearings and the housing. The stiffness of the gear box system is …”

A. Lohrengel, M. Heß Thrust cone bearings provide increased efficiency for helical gear units at moderate speed levels – Indications for possible energy saving potential in an expanded field of application S. 231-242

„… transmission in helical-toothed gear stages. They have proven as an efficient and reliable bearing concept for …” „… between in- and output is regarded as system losses of the gearbox and the reciprocal quotient as its …” „… efficiency. The system losses are the sum of losses caused by several gearbox elements. To evaluate the …”

B. Schlecht, F. Rudolph, S. Schumann Experimental studies and simulation of hypoid gear lapping S. 1403-1414

„… gears for appliances with high demands regarding transmission noise. However, there is a major …” „… decreasing flank crowning. Thereby, transmission errors are reduced while maintaining a favourable contact …” „… prediction of wear depth for different applications. In Archard’s theory, the tribological system consists …”

C. Gorla, E. Conrado, F. Rosa, F. Concli Austempered Ductile Iron (ADI) for gears: manufacturing, performances and tests S. 977-988

„… mounted on one of the two shafts introduces the load in the system. On the other shaft, a torque meter …” „… , controlled by an inverter, which, during tests, only needs to provide the power losses of the system. On the …” „… evaluations of helicopter transmissions, ICAF 2011 Structural Integrity: Influence of Efficiency and Green …”

D. Liang, B. Chen, R. Tan, C. Li Tooth profiles design and stress analysis of double helical gear transmissions with geometric elements constructed tooth pairs S. 411-420

„… Tooth profiles design and stress analysis of double helical gear transmissions with geometric …” „… laboratory of Mechanical Transmission, Chongqing University, Chongqing, China Abstract A study on the …” „… double helical gear transmissions with geometric elements constructed tooth pairs is carried out in this …”

C. Brecher, C. Löpenhaus, J. Brimmers Potential of free flank modifications for beveloid gears S. 553-564

„… more and more into the spotlight. The beveloid gear has been an important part of marine transmissions …” „… marine transmissions, for the application within four wheel drive vehicles and robot transmissions …” „… , 2017 553 cially for robot transmissions beveloid gears with parallel axis are used, because of its …”

J. Strüber Design of plastic micro gear teeth for mass production with high manufacturing tolerances for a medical device S. 1463-1472

„… transmission error (calculated) Figure 9 shows the calculated geometric transmission error for the …” „… ratio is less than 1. Indeed the transmission error (more accurately, the difference between maximum and …” „… minimum values, subsequently referred to as ∆ transmission error) for the narrowest and medium mesh for …”

S.-J. Tsai, L.-C. Chang, C.-H. Huang Design of cycloid planetary gear drives with tooth number difference of two – a comparative study on contact characteristics and load analysis S. 61-74

„… cycloid planetary gear reducers are important drives for power and/or precision motion transmission. The …” „… the transmission of small reduction ratios in the practice, but they are rarely used in the cases …” „… Transmission angle ith CI-I-I- )( iii )()( CCII-II-II- iii Equivalent displacement i …”

Foreword S. 1-4

„… of geared transmissions. Especially for automotive powertrains, the NVH-behavior gets more and more …” „… conference address the subject of modelling and simulating the noise behavior of geared transmissions and …” „… research and development. In modern gearbox systems, methods synthetic and low viscosity oils or reduced …”

J. J. Liou, S. Rakuff The development of worm drives S. 503-516

„… , Connecticut, U.S.A. Abstract A worm drive is a geared power transmission device in which a worm meshes …” „… lubrication in an open environment. The modern worm drive is a commonly used power transmission device to …” „… transmissions (Fig. 1). Fig. 1: Global distribution of mechanical power drives in which worm drives make …”

E. Erkilic, Z. Burcay Optimizing tooth proportions to improve topland Saribay balance in aerospace bevel gears S. 447-456

„… desired contact ellipse and transmission error to be observed. Utilizing this framework, more recent work …” „… mechanical efficiency, minimize loaded transmission error and contact stress, while maintaining the contact …” „… Transmission Error of Hypoid Gears,» Journal of Mechanical Design, vol. 132, pp. 011010/1-9, January 2010 …”

H. Schreiber, T. Röthlingshöfer Kinematic classification of a gearbox comprising separate thrusted teeth and its advantages regarding existing approaches S. 267-280

„… Gearbox Planetary gearboxes are applied when a higher transmission ratio in one stage is needed, than a …” „… realized using the tooth carrier, Fig. 1.4-1. The transmission ratio of the Galaxie® gearbox is generated …” „… . Brecher, Werkzeugmaschinen 3: Mechatronische Systeme, Vorschubantriebe, Prozessdiagnose, Berlin: Springer …”

doi.org/10.51202/9783181022948

VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2018

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R. Buchberger, O. Grieshofer, K. Puchner, R. Sereinig System optimization of electric drives in terms of lightweight design, acoustics and efficiency by means of modern transmission simulation methods S. II-31-II-46

„… integrated eDrive systems, consisting of electric motor, power electronics and transmission. Based on …” „… System optimization of electric drives in terms of lightweight design, acoustics and efficiency …” „… by means of modern transmission simulation methods Dipl.-Ing. Reinhard Buchberger, Dipl.-Ing. Dr …”

F. Mühlfeld, M. Hochrein, N. Schmidt-Winkel, J. Buhl Electrified automated manual transmission (eAMT) – Synergies by combining an electric drive with an automated transmission S. I-197-I-210

„… . To automate the manual transmission, ZF adds a gearbox and clutch actuator as an add-on system to …” „… manual transmission during gearshift. VDI-Berichte Nr. 2328, 2018200 Fig. 2: eAMT System: P4 …” „… automated manual transmission in an eAMT system clearly approaches the automatic and dual-clutch …”

C. Sibla, A. Donges, F. Jauch Third Generation of ZF’s 8-speed automatic transmission – Reducing CO2 emissions in the 8HP transmission S. I-23-I-32

„… the 8HP transmission. The chart presents the energy losses in the transmission system’s main sources …” „… functional enhancements, such as in the shifting sequence or the transmission system – increases in the gear …” „… transmission up to the start of production. Analysis of the transmission system Before the 8HP transmission …”

M. Bahne, U. Frey, G. Schlager Transmission technology contribution to CO2 roadmap – a benchmark S. I-285-I-304

„… consumption of the VDI-Berichte Nr. 2328, 2018 291 transmission system as a whole has not yet been adequately …” „… Nr. 2328, 2018300 In addition, the e-drive system’s scalable power for high vehicle performance level …” „… dioxide emissions. In selecting the best possible transmission technology, manufacturers increasingly …”

A. Schmidt, H.-P. Fleischmann Enhancement of a dual clutch transmission kit – AUDI S tronic – Version for All-Wheel Drive, Increase of Torque and HV Electrification S. I-33-I-48

„… system design kit was defined at AUDI AG for a new generation of dual clutch transmissions in the …” „… with a quattro ultra all-wheel drive. 1. Dual Clutch Transmission Kit Modular component or system …” „… start of this decade, AUDI AG defined a modular dual clutch transmission system kit, used primarily in …”

G. Hellenbroich, I. Steinberg, J. Ogrzewalla Powershift capable 2-Speed Electric Drive Unit for Light – Commercial Vehicles with Short Time to Market S. I-229-I-238

„… quickly. Compared to 1-speed transmissions, this solution is superior in both performance and system …” „… components and sub-systems, including electric machine, inverter, dual clutch unit, and actuation system [1 …” „… launch torque and top speed requirements is difficult to solve with a 1-speed transmission, especially if …”

P. Maurel, N. Termenon, Philippe Kraemer, I. Sogoba Efficient hybrid clutch actuator S. I-485-I-498

„… actuation system regarding manual transmission main clutch automation and connecting clutch automation. We …” „… position the system was previously On a piloted system for a manual transmission main clutch, the residual …” „… irreversible actuation for manual transmission Designing actuation systems for the fastest performance is not …”

R. Stehr, A. Götz, M. Ciesek, S. Köpfler, M. Finsterbusch, R. Willeke Future Schaeffler CVT concepts with an innovative actuation system S. I-49-I-64

„… EPA in the transmission system, with a suitable system architecture, would even make it possible to …” „… Servo-Pump Continuously Variable Transmission Control System. SAE 2005-01- 3782, 2005 VDI-Berichte Nr …” „… actuating transmissions, from electromechanical systems for automatic transmissions to complete hydraulic …”

I. Andrasec, B. Jeitler AVL’s future hybrid X mode – A modular transmission family concept S. I-211-I-228

„… conventional six speed automatic transmission (AT) or as a 48 Volt system (48V) in principle. For the high …” „… generate two high voltage HEV or PHEV systems (HV and HV+), a 48 Volt system (48V) or a 6 speed …” „… AVL’s Future Hybrid X Mode A modular transmission family concept AVLs Future Hybrid X Mode …”

M. Roßhuber, G. Schromm, K. Kranz The new BMW automatic transmission – Challenges in development S. I-11-I-22

„… transmission system. In the context of energy efficiency of the basic transmission, the ratio spread as well …” „… The new BMW automatic transmission Challenges in development Dipl.-Ing. (FH) Martin …” „… 2. Generation fort. Eine weitere Absenkung der Betriebspunkte durch Änderungen am DU-System und der …”

M. Kneißler, R. Welter, M. Baumann Entry hybridization of manual transmission drivetrains – A review of P0/P1 structures with an automated clutch S. I-305-I-322

„… transmissions are catching up on the system level by using optimized gearshift maps with the effect that some …” „… : Recommendations for manual transmission automation 16. Considerations for a P0 48 V system with an automated …” „… fully automated 2-pedal system A summary of these systems including system overview, actuator and …”

G. van Spijk, A. Klaassen, A. van der Leest, A. Brandsma, M. Tweehuysen CVT: dedicated to hybrid solutions – Setting the benchmark on all KPI’s S. I-65-I-78

„… than 40% shorter acceleration times. Overall system cost: The system cost, including transmission …” „… transmission systems world-wide over the last decades. Currently, Bosch expects that the total CVT market …” „… : “Pushbelt CVT integration in 48V system-When fun-to-drive meets reduced CO2 footprint”, CTI Berlin 2017 …”

G. Bednarek, K. Geratz, H. Chariou The all-new 8-speed AT for the Opel Grandland X S. I-1-I-10

„… which are supported by a closed system design with dry cavity differential, transmission integrated oil …” „… VDI-Berichte Nr. 2328, 2018 1 Ausführung der Getriebe als geschlossenes System mit geschlossenem Differential …” „… launched in 2018 with new efficient 8-speed automatic transmissions in combination with one Gasoline and …”

C. Danzer, T. Voigt, T. Günther, R. Tröger From fleet requirements to optimized Dedicated Hybrid Powertrains S. I-269-I-284

„… , P0- and P2- Hybrid systems. VDI-Berichte Nr. 2328, 2018 281 4.4. Sensitivities of the fleet system …” „… turbocharging and transmission systems with four and six speeds. This platform scenario increases the fleet …” „… and in the number of possible combinations with the other components - transmission, electric motor …”

D. Evenschor, D, Dennin, P. Tenberge Automated design concept generation of automatic transmissions – Design concept generation based on results of transmission synthesis S. I-181-I-196

„… ). In a transmission system of more than two central shafts, the relations between all central shafts …” „… Automated design concept generation of automatic transmissions Design concept generation based …” „… on results of transmission synthesis M.Sc. David Evenschor, Dr.-Ing. Dirk Dennin, BMW Group …”

I. Morrish Getting more out of existing sensors: control algorithms to measure true torque, backlash and tooth position to achieve higher shifting comfort and safe dog clutch engagement S. III-93-III-104

„… torque signal to the transmission, due to the unknown parasitic losses of the ancilliary systems. The …” „… existing sensors within the transmission to provide extra information to aid with existing control methods …” „… transmission gives many benefits for the operation of the transmission itself, but also in terms of the …”

B. Arnold, B. Lecointre Shift simulator for shift feel and quality development of manual transmissions S. I-425-I-440

„… costumers’ expectations. With a digital model of the transmission a real-time force feedback system is …” „… simulated manual transmission shift system. The shift simulator is used as an advanced development tool …” „… considering also the open simulation model with a complete transmission system including the external shift …”

W. van Harselaar, M. Brouwer, T. Hofman A generic transmission model for hybrid electric drives – Integration of the dynamic behavior of all conventional-, electric-, and hybrid-transmission mode types in a single model S. I-163-I-180

„… hybrid system topology, abbreviations as defined in Table 1 To discuss transmission mode types …” „… definition of transmission mode types, three modes of the two-mode hybrid system are considered: 1) Mode M1 …” „… A Generic Transmission Model for Hybrid Electric Drives Integration of the dynamic behavior of …”

W. Guo, M. Jordan, X. Xu The application of fast and efficient clutch coordination control in a P2 hybrid automatic transmission S. I-465-I-484

„… electric oil pump. The transmission gear system is composed of three planetary gearsets (PG1-PG3), four …” „… and the line pressure regulating system for the transmission. The EOP and the MOP work parallelly in …” „… the performance of the hydraulic system and mechanical system of the transmission. In inertia phase …”

U. Reichert, F. Busch, S. Ott, K. Bause Potential of lightweight design of a vehicle transmission by usage of high strength steels S. I-369-I-384

„… restructuring of the transmission components or an overall systemic view of the entire drive system. In order …” „… potential for reducing the weight of the vehicle transmission system. The question arises how these new …” „… Potential of lightweight design of a vehicle transmission by usage of high strength steels …”

K. Bennewitz, A. Mann Powertrain electrification exemplified by the VW Golf S. II-135-II-168

„… 1.5 TSI engine in combination with a DQ200 dual-clutch transmission. Its micro-hybrid system expands …” „… transmission ratio was lengthened from 9.76:1 to 9.02:1. Regarding to system demands, the increase of maximum …” „… safety-relevant systems, such as power steering as well as the brake control system, a redundant energy supply …”

Titelei/Inhaltsverzeichnis S. I-I-I-X

„… � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 441 B. Chamberlin, BorgWarner Power Drive Systems, USA; E. Gold, BorgWarner Transmission Systems …” „… , Bonn Main topics: Automatic and dual clutch transmissions Transmission topologies as part of …” „… BMW automatic transmission – Challenges in development � � � � � � 11 M. Roßhuber, G. Schromm …”

M. Hein, T. Tobie, K. Stahl Holistic approach for fatigue life design of vehicle transmissions S. I-131-I-146

„… , K.: System service life testing: Shortened test method for vehicle transmissions …” „… method for time-scaled fatigue tests of gear transmission systems. Forschung im Ingenieurwesen 81. Heft …” „… Holistic approach for fatigue life design of vehicle transmissions Dipl.-Ing. Michael Hein …”

R. Heckmann Fully automated EOL E-drive testing – Automation and modularity for efficient testing solutions S. II-73-II-84

„… each transmission type, and has so far supplied more than 300 of these systems to transmission …” „… also hybrid transmissions and pure e-drive systems. VDI-Berichte Nr. 2328, 201874 The Challenges of …” „… open system for measurement channels, and handles standard bus systems • The software is suitable …”

A. Viehmann, R. König, S. Rinderknecht Investigation of gear shifts in a parallel-series hybrid powertrain with dog clutches in a demonstrator vehicle (two-drive-transmission with range-extender, DE-REX) S. I-323-I-346

„… Demonstrator Vehicle (Two-Drive-Transmission with Range-Extender, DE-REX) Performing mode changes using …” „… Schaltzeitreduktion und Schaltkomfortsteigerung gegeben. Abstract The „Two-Drive-Transmission with Range-Extender …” „… transmission with the drive shafts of the vehicle. Simulation based investigations have shown, that the …”

B. Reick, M. Wechs, K. Grad, M. Geimer Automated gearbox synthesis and evaluation of electric power-split transmissions S. III-37-III-44

„… Automated gearbox synthesis and evaluation of electric power-split transmissions Dipl.-Ing …” „… bereitstellen. VDI-Berichte Nr. 2328, 2018 37 Abstract Continuously variable transmissions allow the …” „… driver’s needs and the upcoming work-task. Therefore those transmissions are very popular for tractors …”

B. Chamberlin, E. Gold HEV P2 module concepts for different transmission architectures clutch and e-motor options S. I-441-I-450

„… Transmission Systems, Germany VDI-Berichte Nr. 2328, 2018 441 Figure 1: common nomenclature for HEV e-motor …” „… . This typically falls within either a high voltage or low voltage system. Low voltage systems are …” „… system and are typically limited to <25 kW of electrical power. These systems do not require the expense …”

K.-P. Fritsch Industry 4.0 in the automatic transmission production S. I-397-I-412

„… Industry 4.0 in the automatic transmission production Dipl.-Ing. (FH) K.-P. Fritsch, ZF …” „… transmissions at ZF is characterized by the highest demands in terms of employee qualification, complexity in …” „… million automatic transmissions produced, a new production record was set in 2017. Up to 10,000 automatic …”

C. Pelger, G. Jacobs, H.-D. Schneider Potentials of power-split CVTs for small mobile machines S. III-71-III-80

„… Abstract Power split transmissions represent the dominant drive technology for agricultural tractors …” „… variator element. These transmissions achieve very good efficiencies under full load while transmitting …” „… significantly. To improve the efficiency of power-split drives, the Institute for Machine Elements and System …”

M. Mileti, H. Pflaum, K. Stahl TorqueLINE cone clutch: Thermo-mechanical stability of cone clutches for ATs S. I-357-I-368

„… . Springer-Verlag (2013). [10] Gaertner, L.; Ebenhoch, M.: The ZF automatic transmission 9HP48 transmission system …” „… CO2 emissions of passenger vehicles is however impellent. Traditional automatic transmissions with …” „… torque converter own a consolidated share of the overall transmission market, especially in northern …”

M. Werra, A. Ringleb, C. Sieg, F. Küçükay Thermal behavior of 48 V hybrid systems S. I-529-II-VI

„… irreversible damage of the components. The variety of powertrain topologies combined with thermal system …” „… separate transmission loss calculation. It is possible to integrate up to nine electric machines into the …” „… gearbox, this is why hybridized transmissions can be modelled as well. Due to the backward simulation …”

D. Güth, J. Haupt, T. Gassmann Seamless-shift two-speed eAxle with torque vectoring S. I-255-I-268

„… the complete eDrive system including eMotor, inverter, transmission and hydraulic actuator …” „… , et al.: A Novel Seamless 2-Speed Transmission System for Electric Vehicles: Principles and …” „… controlled Twinster clutch system well known from GKN’s AWD systems like the Land Rover Evoque Active Drive …”

L. Dedeleit, M. Ayeb, L. Brabetz Short circuit calculation of permanent magnet synchronous machines with comsol multiphysics S. II-197-III-VII

„… Engineering Germany GmbH, Neuss f Drive-systems for tractors Modern tractor transmission concepts – an …” „… drive of electric vehicles. In order to ensure the functional safety of the drive system in case of …” „… , as in the case of a failure of the control system. In order to avoid damages in the event of a fault …”

N. Dudin, S. Ott, A. Albers, R. Misch, T. Rochlitzer Virtualizing validation processes of electrified powertrain generations S. II-47-II-72

„… system view to allow the validation of OS in closed-loop with the systems vehicle, driver and …” „… specific subsystem, namely the system vehicle that is coupled with the so-called ‘Connected Systems (CS …” „… overall system view is required as seen Fig. 2. In the context of OS development, validation entails all …”

M. Hofstetter, D. Lechleitner, M. Hirz, M. Gintzel, A. Schmidhofer Multi-objective gearbox design optimization for xEV-axle drives under consideration of package restrictions S. I-239-I-254

„… and costs are typically set on system level. This imposes that deduction of component requirements is …” „… system, the gearbox represents a linking element between the electric machine and drive shafts to the …” „… to multiple possible motor- and power electronics variants as also versatile system installation …”

C. Schmahl, W. Hildebrandt, D. Reith The impact of efficiency enhanced drivetrain components on the energy consumption of electric and conventional vehicles S. I-119-I-130

„… mechanical path of power transmission will become even more important. Introduction The development of …” „… through the system. Fig. 1: Schematic diagram of two sample vehicles with conventional and electric …” „… relationships are in turn demonstrated for the whole system! Further recommended reading: In [7] and [8 …”

Y. Endo Development of new torque converter lockup control for new generation of infiniti QX50 S. I-79-I-94

„… works in-tune with the Idle Stop system, distributing oil throughout the transmission to enable …” „… in the control valve, variator system provides more precise gear ratio control. In addition …” „… driveability and fuel economy. VDI-Berichte Nr. 2328, 201882 Moreover, an electric oil pump system …”

R. Savelsberg, P. Griefnow, G. Birmes, A. Sehr Advanced powertrain functions of 48 V hybrid vehicles – Efficient powertrains does not exclude driving pleasure S. I-499-I-516

„… significant system costs. For this reason, 48 V systems with low additional costs and relatively high …” „… , Antriebsstrangfunktionalitäten sowie den Fahrspaß zu verbessern. Das 48 V System ermöglicht hohe Rekuperationsraten, verbesserte …” „… die FEV Europe GmbH ein 48 V Mild-Hybrid-Demonstrationsfahrzeug. Das 48 V-System besteht aus einer 8 …”

T. Högnäs, G. Beldie 48 volt torque vectoring electric rear drive module (eRDM) – Excellent driving dynamics with significant CO2 savings S. I-517-I-528

„… voltage systems. System Performance Utilization of an electrical machine for the TV function offers …” „… characteristics of the TV system. Clutch based systems with a typical 10% over speeding on the clutches …” „… system simply transfers the energy to or from the battery and thus considerably improves the system’s …”

C. Ahn Churning oil path optimization process development – Application of moving particle simulation method to design process S. I-95-I-100

„… problem, comparison of grid method and MPS method has done with simple transmission churning system …” „… of system. Churning oil flow Bench test To utilize MPS method to transmission design, bench test …” „… Abstract As demand of transmission efficiency goes higher, churning oil path and loss optimization is …”

J.-M. Veith, B. Krüger, A. Albers, M. Behrendt Torque prediction in vehicle drive trains based on bus signals using artificial neural networks S. I-413-I-424

„… correlation between input and output. VDI-Berichte Nr. 2328, 2018414 2.2 All-wheel-drive (AWD) system AWD …” „… front and rear axle is realized. All possible system states can be explained using three characteristic …” „… used as an ANN input. This enables the detection of unexpected system behaviour. In this example, the …”

D. Engelmann, S. Herr Validierung neuer Funktionen eines mechanischen Antriebsstrangs für mobile Arbeitsmaschinen mit radindividueller Steuerung S. III-81-III-82

„… LT3 system was successfully tested in a first project at the sub-system level according to VDI 2206 …” „… . The next step is the validation as a complete system at the vehicle level. Therefore, the driving …” „… equipped with a continuously variable transmission. This enables the driver to easily adjust the vehicle …”

H. Neurath, L. Frerichs Holistic method to find suitable drivetrain technology and architecture – How available information can be used to reduce development complexity S. III-57-III-70

„… hydraulic drives has been put into question in various studies [2, 3]. Continuous variable transmission …” „… disciplines have to work together to develop the most suitable drive system. Uncertainties in wear mechanisms …” „… . Development method and evaluation system The first part of this chapter gives an overview of the designed …”

J.-E. Moseberg, J. Kohlhoff, S. Hekeler Electric all-wheel drive: enhancing vehicle dynamics and driving safety by wheel-individual torque distribution – How to make use of the over-actuation of electrified vehicles S. II-103-II-116

„… single-track vehicle model (cf. [4]). The latter is a system-theoretical approach inspired by [5]. For both …” „… driver. System-theoretically motivated determination of the desired lateral vehicle motion Looking at …” „… system-theoretical approach to generate a desired yaw motion is based on the second-order element 1 2 . (7) Here …”

J. van der Meer, G. Hangen, J. Uhlig The new plug-in hybrid module as an addition to the AUDI S tronic gearbox family – Design, layout and manufacture S. I-451-I-464

„… gearbox housing. The electric drive motor and clutch are operated within the automatic transmission fluid …” „… system efficiency, the focus at the AUDI AG as a premium car manufacturer is on maintaining driving …” „… single tooth winding based on the aforementioned requirements with a view to maximum system efficiency …”

M. Behzad, V. Saxena, M. Schaefer Thermal-hydrodynamic optimization of grooves in a wet clutch S. I-101-I-118

„… temperature and thereby, overall performance of clutch system. In addition to optimizing thermal behavior …” „… Transmission Fluid (ATF) (see e.g., [6] [7]). Nevertheless, such often one or two dimensional …” „… system level improvement. For example, maximizing the heat transfer for particular conditions of …”

T. Nishikawa, Tomoo Kubo The development of a low friction and low viscosity final drive oil S. I-347-I-356

„… lubricants for Engine, Transmission and Final Drive (F/D). However, as low viscosity lubricants have a …” „… and the mechanism of frictionreduction effect of MoDTC in the system investigated. Details are shown …”

C. Körtgen, G. Morandi, G. Jacobs, Achim Kramer Efficient development by means of automated calibration of tractor control units S. III-45-III-56

„… controllable tractor speed, which is widely achieved by modern power split transmissions. Optimizing the …” „… swivel angle of the hydraulic pump by the transmission control unit (TCU) of the tractor. To achieve …” „… . Christopher Körtgen, Institute for Machine Elements and Systems Engineering of RWTH Aachen University (MSE …”

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