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Drivetrain for Vehicles 2016

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2276 2016

Results in this title

B. Kluge Systematic approach to generate Multi-Mode-Transmissions – Method to evaluate the potential of Multi-Mode-Transmissions S. 157-166

„… Systematic approach to generate Multi-Mode- Transmissions Method to evaluate the potential of …” „… Multi-Mode-Transmissions Dr. rer. nat. Benjamin Kluge, BMW AG, München Zusammenfassung Bei aktuellen …” „… mechanical structure became more complex over the time. So called Multi-Mode-Transmissions combine the …”

R. König, A. Viehmann, S. Rinderknecht Development of the transmission control for a High-Speed Multi-Gear Powertrain Concept for Electric Vehicles S. 543-562

„… Development of the transmission control for a High-Speed Multi-Gear Powertrain Concept for …” „… powertrain concept for electric vehicles high-speed electric motors and multi speed transmissions have become …” „… be increased, which lowers overall mass, installation space and cost. A multi speed transmission …”

R. Kronstorfer, F. Kolb, U. Pinschmidt Audi quattro – Four wheel drive becomes more efficient S. 369-382

„… drive only. The transmissions were provided with a uniform interface which allows the multi …” „… factors are the Audi drive select, transmission modes such as “S” or “M” and trailer towing. On the basis …” „… . Furthermore the newly developed S tronic double-clutch transmission and manual VDI-Berichte 2276, 2016 369 …”

O. Back, A. Damm, P. Echtler Clutches with positive fit for Automatic Transmissions S. 221-230

„… modern vehicle transmissions are almost impossible without conceptual changes. Proven multi-disk clutches …” „… transmissions are the drag power and contact forces of the multi-disk clutches and brakes. Friction and the …” „… Clutches with positive fit for Automatic Transmissions Ottmar Back, Dr. Ansgar Damm, Peter …”

K. Fronius, A. Harsch, P. Neuwirth, J. Gindele The AMG SPEEDSHIFT DCT from the Mercedes-Benz 7G-DCT Family – Performance for the Road and Race Track in the Compact Segment S. 53-68

„… Two sub-transmissions with an oil-cooled multi-disk dual clutch Gear set with multiple cone …” „… to 475 Nm. The dual-clutch transmission also had to meet the new requirements for enhanced …” „… performance. The transmission's torque capacity has been further raised in the given installation space, and …”

F. Brezger, A. Moser Energy Saving Potentials by Advanced Functionalities of Clutch or Brake actuator Systems for Vehicle Drivetrains S. 137-156

„… disk package in driving situation with lower torques. 2.2. Automatic Transmissions In modern ATs …” „… transmission has six multi-disk clutches and a T/C L/U. The hydraulic circuit starts with a system pressure …” „… data: transmission type CVT AT (9-speed) DCT component(s) FWD clutch T/C L/U all multi …”

S. Fujimoto, N. Shiomura, K. Sato, Y. Kawahara The Trend and Future of Torque Converter for CVT S. 869-878

„… typical step automatic transmission (AT) and for typical continuously variable transmission (CVT), we see …” „… there are several differences of design due to the differences of requirements for each transmission …” „… application of high tensile steel, aluminum and CFRP. For the transmission, while the expansion of …”

M. Spreckels, U. Christoffer Efficient synchronizer for comfort and performance – increase of manual and dual clutch transmissions S. 207-220

„… transmissions and will continue to be an essential part of modern transmissions in the foreseeable future. The …” „… and dual clutch transmissions and will continue to be an essential part of modern transmissions in …” „… transmissions Dr.-Ing. Marcus Spreckels, Dipl.-Wirtsch.-Ing. Ulf Christoffer, Oerlikon Friction Systems …”

M. Maisch, M. Homm, U. Keller The Highly Efficient 9GH-TRONIC Plug-In Hybrid Transmission by Mercedes-Benz S. 339-352

„… The Highly Efficient 9GH-TRONIC Plug-In Hybrid Transmission by Mercedes-Benz Das …” „… transmission, Mercedes-Benz has developed a highly efficient plug-in hybrid transmission for future use in the …” „… electrified passenger car and SUV model series. 9G-TRONIC, the nine-speed automatic transmission, is …”

A. Albers, U. Reichert, S. Ott, A. Radimersky Software supported development of a Battery Electric Vehicle powertrain considering the efficiency S. 321-338

„… , consisting of single-speed or multi-speed transmissions and the characteristic map of the identified electric …” „… modern, zero-emission vehicles. Important aspects in electrified drive systems are the efficiency of the …” „… multi-speed gearbox is needed [5]. Additionally, a multispeed gearbox enables the electric machine to …”

V. Warth, B. Reick, B. Bertsche, M. Geimer Efficient analysis of complex continuously variable power split transmissions with multiple in- and outputs S. 719-730

„… Efficient analysis of complex continuously variable power split transmissions with multiple in …” „… erarbeiteten Methodik für unterschiedliche Anwendungsgebiete. Abstract Modern tractors have drives with …” „… transmission concepts is particularly important in the early phase of product development. Thus, basing on the …”

doi.org/10.51202/9783181022764

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Dritev 2024

VDI Wissensforum GmbH

Series: VDI-Berichte

Volume 2433 2024

Results in this title

F. Rahnama, R. Mokhti, K. Loock, M. Lutz, M. Kern Dedicated Hybrid Transmissions (DHT) in modern mobility and the future-proof hybrid strategy for multi-modes powertrains S. 265-282

doi.org/10.51202/9783181024331

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Dritev – Drivetrain For Vehicles 2019

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2354 2019

Results in this title

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

„… the conflict of goals at the dimensioning of the gear ratio, multi-speed transmissions are discussed …” „… . The lowest gear ratio of the multi-speed transmission can still be chosen for high speed operation …” „… can be improved with multi-speed transmissions. In order to meet the expectations of costumers on …”

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

„… additionally includes a static lock mode in which the multi-plate clutch is locked by a specific hold device …” „… static lock mode in which the multi-plate clutch is locked by a specific hold device unit, even in the …” „… modes, turning the GLE into an all-terrain vehicle as never before. VDI-Berichte Nr. 2354, 2019 …”

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

„… Single vs. Multi-Cone Synchronizers with Carbon Friction Lining – A Comparison of Load Limits and …” „… Synchronizers are widely used in gear boxes of car and truck transmissions. Optimizing costs and improving the …” „… efficiency of gear boxes require knowledge about the relative load limits of single and multi …”

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

„… Multi-gear transmissions in electrified powertrains Development optimization by improving simulation methods …” „… � � � � � � � � � � � � 397 C. Kim, HYUNDAI TRANSYS, Hwaseong, Korea Efficient 6-speed manual transmission for modern …” „… . Bahne, A. Wiesebrock, Magna Powertrain Transmission Systems, Untergruppenbach Single vs� multi …”

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

„… Efficient 6-Speed Manual Transmission for Modern Downspeeding Solutions Dipl.-Ing. Helmut …” „… applies to heavy vehicles such as SUVs. When it comes to modern manual transmissions, this requires not …” „… Modern internal combustion engines are subject to strict legal regulations concerning fuel consumption …”

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 …” „… . To maintain sufficient flexibility, a modular approach with compatible and replaceable transmission …” „… systems seems to be the best way for the beginning of the 2020 years. Transmission kits allow appropriate …”

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

„… optimization. Transmission definition method is aligned with best practise failure mode driven analysis …” „… Transmission system footprint related to fatigue, efficiency and NVH Leistungsabdruck eines …” „… electric transmission systems for automotive since more than 15 years. More than 750.000 hybrid and …”

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

„… Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic …” „… improvements in modern drive trains. Introduction The current situation of the automotive industries demands …” „… drivetrains are growing bigger at the same time. In addition to the various approaches of transmission types …”

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

„… design, acoustics and efficiency by means of modern transmission simulation methods. International VDI …” „… Transmission DPS, the first step is to design all the parts of the gear sets in accordance with common …” „… design and simulation scopes and increasing use of virtual tests instead of real ones. Modern electric …”

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

„… Benefits of the New Allison 9-Speed Fully Automatic Medium Duty Commercial Transmission Scott …” „… Kluemper Director – On-Highway Commercial Products Allison Transmission, Inc., USA Conrad Rockey …” „… Executive Director – Commercial Powertrain Engineering Allison Transmission, Inc., USA ABSTRACT …”

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

„… Optimization of multi-motor electric drive systems What is the optimum combination in terms of …” „… gearset , some applications use multi-speed solutions. The most widespread e-motor technology today is …” „… applications also multi-EDU systems are used. This paper describes a study in which different power levels …”

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

„… of the electric motor, the inverter, the transmission and their psychoacoustic impact are key issues …” „… the entire transfer path from the excitation of the electric motor, inverter and transmission through …” „… challenges for an electric axle drive with its subsystems transmission, electric motor and power electronics …”

doi.org/10.51202/9783181023549

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39. Internationales Wiener Motorensymposium 26.-27. April 2018

Bernhard Geringer (ed.), Hanz-Peter Lenz (ed.)

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 807 2018

Results in this title

K. Oshima, S. Kato Neues Mehrstufen-Hybridsystem für den LC500h mit innovativen Fahreigenschaften des THSII /New Multi Stage Hybrid System for the LC500h with Innovative Drivability of the THSII S. 443-463

„… Hybrid System adds a multi stage shift device to the transmission from the previous hybrid system to …” „… hybrid system. A multi stage shift device was installed between the output shaft of the transmission and …” „… the Multi Stage Hybrid System, the transmission was modified by adding a multi stage shift device to …”

J. Y. Kim, I. S. Ryu, J. N. Kim, D. H. Han, K.-P. Ha, J. Y. Kong, J. D. Rho, I. J. Hwang, K. S. Choi Hyundai-Kia’s SmartStream 1.6L DI-Turbo Motor/Hyundai-Kia’s SmartStream 1.6L Turbo GDI Engine S. 167-190

„… test modes such as WLTC and US06, and with the application of modern multi-step transmission …” „… frequently operated under realworld driving conditions especially when mated with the modern multi …” „… and transmissions. HMG has been developing the brand new SmartStream powertrain with focus on fuel …”

C. De Marino, G. Maiorana, P. Pallotti, S. Quinto, D. Sacco Der Global 3 und 4-Zylinder-Turbo Motor: Die neue FCA-Familie von kleinen High-Tech Benzinmotoren /The Global Small Engine 3 and 4 Cylinder Turbo: The New FCA’s Family of Small High-Tech Gasoline Engi... S. 129-166

„… requirements as well as the new vehicle test cycles, a significant challenge for a modern efficient internal …” „… injector, MultiAir VVL system (FCA proprietary technology) and an integrated exhaust manifold cylinder …” „… “Silent” chain Valvetrain Inlet: VVL (MultiAir); exhaust: roller finger follower and hydraulic lash …”

J. J. Moon, S. Feldmann, D. Certo, L. K. Cloos, S. Müller Das neue variable Ventiltriebsystem von GM / Opel/The New Valvetrain System of GM / Opel S. 339-358

„… control with system torque control and the transmission shift control system. The mode optimizations …” „… Propulsion Systems, a new tripower multi-discrete-variable valve lift system for future gasoline engine …” „… described with special focus on challenges arising from the multi-discrete variability. The control system …”

R. A. Varella, M. V. Faria, P. de Carvalho Baptista, L. Sousa, G. Nuno de Oliveira Duarte, P. Mendoza-Villafuerte Einfluss der Straßenqualität auf C02-Emissionen im Rahmen der On-Road-Prüfung nach der Regulierung der EU Real Driving Emissions (RDE) Auswahl /Influence of Road Grade in CO2 Emissions under On-Road T... S. 744-762

„… ICE Torque (Nm) 270 260 260 95 Transmission/Gearbox Manual/6 Manual/6 Manual/6 Manual/5 Vehicle mass …” „… 14 modes [21]. This modal division was set in a way that each mode has statistically different fuel …” „… each VSP mode, providing an energy and environmental footprint of a given vehicle and propulsion …”

doi.org/10.51202/9783186807120

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DRITEV – Drivetrain for Vehicles 2021

VDI-Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2381 2021

Results in this title

K. Hirano E-Axle with multi driving modes for BEV & Mild HEV P4 – The 3 in 1 e-Axle for EV requiring a wide range of driving force S. 229-240

„… E-Axle with multi driving modes for BEV & Mild HEV P4 The 3 in 1 e-Axle for EV requiring a wide …” „… Motor - Multi Driving Mode” e-Axle is a “Two motor - Two speed” eAxle developed to achieve low power …” „… the ”Two-motor - Two-speed” 3 in 1 eAxle: Dual Motor Multi Driving Mode e-Axle (hereinafter …”

A. Nees Flexible Electro-hydraulic Actuation System for Multi-speed Electrified Drivetrains – Requirements and Concept S. 275-290

„… Multi-speed transmissions for electric drivetrains in passenger cars offer several advantages. Amongst other …” „… realize multi-speed transmissions in a wider range of applications and thus exploit their potential …” „… multi-speed EV transmissions (source: IHS) In parallel, there is a significant market growth expected for …”

Titelei/Inhaltsverzeichnis S. I-XVI

„… with multi driving modes for BEV & Mild HEV P4 – The 3 in 1 e-Axle for EV requiring a wide range of …” „… Multi-speed Transmission of an Electric Vehicle � � 319 T. Hillesheim, Freudenberg Sealing Technologies …” „… automated validation of the shift quality of modern dual clutch transmissions on full-vehicle test benches …”

C. Schmidt, H. Dhejne, J. Karlsson High Efficient 2 speed e-Axle – Highly efficient and shiftable under load S. 145-158

„… featuring single dry-clutch transmission and utilizing high-speed E-machine is the right answer to fulfill …” „… high efficienct e-drive of the customer with AVL´s 2speed transmission. VDI-Berichte Nr. 2381 …” „… e-Motor - Multi plate dry clutch as enabler for high efficiency and compact design - Electromechanic …”

P. Barve Gear Design Challenges of 2-speed-AMT High Torque E-Drives S. 499-516

„… Coaxial / Layshaft or planetary / Single-speed or multi-speed / Wet or dry sump / designed to incorporate …” „… to minimize drag losses. Fig. 4 shows the design process that is followed for the transmissions …” „… . 3: 2-Speed AMT gearbox Layout Fig. 4: Design Process A multi-load case duty cycle is …”

T. Hillesheim Energy-efficient Hydraulic Control for the Multi-speed Transmission of an Electric Vehicle S. 319-328

„… three-speed transmission [2]. 2 Higher efficiency thanks to a multi-speed transmission In modern …” „… Energy-efficient Hydraulic Control for the Multi-speed Transmission of an Electric Vehicle …” „… need to remain affordable, even with increased performance. Multi-speed transmissions have the …”

F. Langhammer, A. Kappes, A. Viehmann, S. Rinderknecht Novel “Two-Drive-Transmission for Long-Range” Powertrain: Ecology and Efficiency meet Driving Comfort S. 207-228

„… . Two-Drive-Transmission (TDT) Key features of TDTs are using a multi-speed transmission consisting of two parallel …” „… Novel “Two-Drive-Transmission for Long-Range” Powertrain: Ecology and Efficiency meet Driving …” „… dem DE-REX-Antrieb auf das neuartige Antriebsstrangkonzept "Two-Drive-Transmission for Long Range …”

A. Ramsauer, A. Pujari Frontloading for (Hybrid-) Transmission Integration at BMW S. 101-116

„… Driving Mode BMWs inline 6-cylinder engine is mated with an 8-speed automatic transmission, the …” „… behavior of vehicles equipped with the BMW inline 6-cylinder engine with transmission set in Sports S mode …” „… Frontloading for (Hybrid-) Transmission Integration at BMW Andreas Ramsauer, AVL List GmbH …”

T. Skubacz, C. Burkhardt, S. Krischke Shift Elements for Electric and Hybrid Drivetrains – Shift elements with low drag losses, high actuation energy efficiency and integrated overload protection S. 487-498

„… . Motivation Hybridization and electromobility are current trends in the powertrain development of modern …” „… combustion engine and transmission (P2), on the transmission (P3), close to the axle (P4) up to …” „… driving, purely combustion-engine or pure electric driving modes. Serial hybrid configurations enable …”

M. Giannantonio, S. Henzler, S. Rinderknecht Advanced Design of Dedicated Hybrid Drivetrains S. 77-100

„… within the large and multi-dimensional solution space containing a vast variety of different topologies …” „… manner for this multi-dimensional design problem. As a practical proof, the results of this approach …” „… ntroduction and motivation The variety of new transmission and drivetrain topologies as well as new …”

B. Krüger, G. Filomeno, D. Dennin, P. Tenberge Holistic Design of All-Wheel Drive Electric Powertrains Using a Multi-Objective Optimization Algorithm S. 377-394

„… Holistic Design of All-Wheel Drive Electric Powertrains Using a Multi-Objective Optimization …” „… ) are fully examined within a multi-objective optimization. Therefore, both EM parameters and the …” „… transmission ratios are optimized simultaneously aiming at maximum range, maximum performance and minimal …”

S. Idler, C. Bünder Scaling the functionality of a DCT-based DHD to segmentspecific requirements – The new high torque DHD Plus S. 241-254

„… platforms intended for multi-powertrain architectures requires a highly flexible transmission solution on …” „… clutch transmission (DCT) building set. It has five mechanical gears with up to 400 Nm internal …” „… Starting with conventional powertrains with a dual clutch transmission (DCT) like the 7DCT300/400 in the …”

F. Bayer, J. Tochtermann Development of a Heavy-Duty E-Axle S. 621-636

„… e-motor power and multi-speed transmissions must be installed in the e-axle. If different trucks with …” „… Multi-Mode E-Axles, CTI Symposium 2020, Berlin, Germany/Online VDI-Berichte Nr. 2381, 2021636 …” „… suspension and offers the ability to shift without torque interruption. The transmission is a traditional …”

M. Häßler, O. Werner The Pendulum Rocker Damper – Providing flexible damper characteristics for hybrid powertrains S. 329-346

„… serial parallel hybrid topology (Schaeffler Multi Mode) including an overview of all relevant operating …” „… time overcomes this limitation. The transmission ratios of roller equipped cam mechanisms give the …” „… example, during charging mode at low loads. The hybridized powertrain poses new challenges, but also …”

Z. Caba, M. Zafer, C. Harman, G. Hellenbroich, Ö. Eyigöz Multi-speed e-axle for electrified heavy commercial vehicles S. 609-620

„… -mode transmission in the evaluated drive cycles Adding up a 4th speed does not provide attractive …” „… Multi-speed e-axle for electrified heavy commercial vehicles Dr. Ziya Caba, Melih Zafer, Caner …” „… (stick diagrams) have been analyzed to identify the optimum transmission architecture. The list of …”

A. Albers, M. Behrendt, J. Köber, T. Breitinger Development of a method for the automated validation of the shift quality of modern dual clutch transmissions on full-vehicle test benches S. 399-414

„… particularly evident in the example of validating the shift quality of modern dual-clutch transmissions, where …” „… Development of a method for the automated validation of the shift quality of modern dual clutch …” „… transmissions on full-vehicle test benches Univ.-Prof. Dr.-Ing. Dr. h. c. A. Albers, Dr.-Ing. M. Behrendt …”

J. Shutty, A. Moser, D. Gajowski Analysis of propulsion system architectures across vehicle segments and markets S. 23-34

„… , power electronics (Si, SiC), transmissions (single speed, multi-speed) and other major subsystems …” „… , 800V), eMotor position (P0, P1, P2, P3, P4, PS, RWD/AWD EV), multi-motor solutions (dual axle, P0/P3 …” „… hundreds of variables – for example: efficiencies, energy, power, temperature, SOC, time in various modes …”

G. Herbillon Performances Validation of an electrically-commanded dog clutch system for multi-speed and disconnectable eDrives S. 255-274

„… P erformances V alidation of an electrically- commanded dog clutch system for multi- speed and …” „… categories. These are Offset or Coaxial / Layshaft or planetary / Single-speed or multi-speed / Wet or dry …” „… : VCST eDrives AMT-concepts including a dog clutch technology ABSTRACT The future transmissions for …”

A. Bagh, D. Magnor, J. Kneiber, F. Löhe eTransport – Application of axle-integrated e-drive in urban LCV and MD trucks S. 637-652

„… newcomer in the area of driven axles it was decided to enter the market in a consistent reassuring multi …” „… shiftable or non-shiftable gear transmissions on the other hand. The definition of a powertrain concept out …” „… concepts for commercial vehicles Due to the gear transmission ratio the concept "axle-integrated …”

S. Kaimer Power to the Wheels – Challenges and Benefits of Electrified AWD for EVs and Hybrid vehicles S. 117-124

„… driven axles. From 2003 on, the BMW X3 was manufactured at Magna Steyr. A controlled multi-plate clutch …” „… axle module. Beside that, the quattro-ultra system also demonstrates that modern all-wheel drive …” „… , 2021118 Fig. 1: Magna hybrid transmissions and e-axle drives overview Magna Powertrain has a …”

A. Drechsel, J. Pellkofer, K. Stahl, J. Sandor, M. Hein Development of a new test method to investigate the wear behaviour of hypoid gear oils S. 453-468

„… used for unsynchronized manual transmissions in buses and heavy trucks. The higher the class, the …” „… share of gear oils of particular API GL categories (including universal - multi grade oils) in the …” „… ). [API13] API Publication 1560: Lubricant Service Designations for Automotive Manual Transmissions …”

doi.org/10.51202/9783181023815

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Dritev – Drivetrain for Vehicles 2020

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2373 2020

Results in this title

F. Brezger, A. Moser Investigation and potential analysis of shiftable form-locked one-way clutches for hybrid and electric vehicles S. I-133-I-148

„… ) wird es im weiteren MMCM für Englisch „Multi Mode Clutch Module“ genannt. In diesem Paper wird die …” „… clockwise, locked and free), it is called Multi Mode Clutch Module (MMCM). In this paper, the function of …” „… and friction clutch) the Multi Mode Clutch Module (MMCM) is introduced. It is a shiftable pawl clutch …”

T. Casper, G. Spengler, M. Bromberger The high-efficiency fully electric drivetrain of the new Porsche Taycan S. I-289-I-304

„… starting and accelerating. Launch Control is also available in these modes. In this mode, the transmission …” „… and rear axle transmissions. The two-speed rear axle transmission is a particular highlight. It is the …” „… first transmission developed by Porsche in-house in more than 25 years. Consistent optimizations of …”

P. Tenberge, A. Alnahlaui E-drive and hybrid-drive with 2 high-speed E-motors and a 2-speed gearbox S. I-233-I-252

„… with 2 electric motors and innovative 2-speed / 2-mode transmission With such a compact high-speed …” „… ratios or a 2-speed transmission between the electric motor and the wheels. But multi …” „… backward with the big transmission ratio in mode 1. Shaft 3 is locked to the housing in both directions …”

K. Sabzewari, M. Vieracker, J. Sagstetter Cost efficient PHEV powertrain solution based on dedicated hybrid transmission – Cost efficiency for small and mid-size plug in hybrid vehicle S. I-89-I-102

„… Cost efficient PHEV powertrain solution based on dedicated hybrid transmission Cost efficiency …” „… dedicated hybrid transmission (DHT) genannt. Abhängig von den Fahreranforderungen werden durch die …” „… and transmission by removal of engine turbocharging, drive off elements, mechanical gear …”

T. Korb, M. Nussbaumer, S. Rinderknecht Generic optimization environment and knowledge-based guided evolutionary algorithms for automated transmission calibration – Method to generate a knowledge base through impact analysis of parameters a... S. I-355-I-384

„… transmission calibration Method to generate a knowledge base through impact analysis of parameters and …” „… . Abstract The effort for calibration tasks regarding the transmission control unit and especially the …” „… functional parameters for the shifting strategy, shifting processes or mode changes, has increased …”

C. Danzer, T. Voigt, A. Forell, M. Sens, E. Schreiterer, R. Kockisch, J. Müller, E. Schneider The systematic way to your sustainable powertrain platform – holistic and customizable – Systematical methods to investigate mobility scenarios of tomorrow S. I-385-I-402

„… seamless-shifting multi-speed transmissions. References [1] EU Regulation 2019/631 [2] Kratzsch, M …” „… the proven synthesis methods among others for transmission, electric motor and actuation. The final …” „… - and E-segments. Additionally a BEV-powertrain platform with single- and multispeed transmissions are …”

S. Worrall, J. Foulsham, I. Stone, T. Gassmann CeDrive – Electric drive technology for a new era – Advanced cooling and control of high-speed eDrive S. II-33-II-48

„… vehicle launch performance and max vehicle speed requirement without use of complex multi speed …” „… transmissions. To address all these new challenges GKN started the project ACeDrive, presented in this paper …” „… , number of gears & transmission ratio - Motor type and layout, peak and nominal torque, max speed …”

S. Demmerer Next generation electric drives S. II-63-II-74

„… during high-speed driving modes. This leads to the idea to disconnect one axle drive, as it is common in …” „… . Looking at highly developed automatic transmissions, with many generations, it is obvious, that the …” „… disconnect and 2-speed transmissions, the mechanical gearbox will be extended and equipped with actuators …”

L. Wittmann, M. Wein, M. Wolf Consistently quattro S. I-159-I-172

„… two superposition gears on the differential, activated by a control unit via multi-plate clutches …” „… : No transmission tunnel and centre differential The ability to meet these new challenges has …” „… non-selectable two-stage transmission. However, it is software that makes these two axle drive systems quattro …”

D. Kieninger, J. Hemsen, G. Witham The highly integrated ModulED drive module – Holistic concept design S. I-27-I-44

„… machines, power electronics and transmission: It features a high-speed hybrid synchronous machine with six …” „… phases and injection mold polymer-bonded magnets, a high-ratio dual-speed transmission with double …” „… between these two modes, the best operation behavior can be achieved at any time. The herein used …”

A. Manelli, F. Filippo Irato, C. Cavallino, R. Gay e-FDU: Concept, develop & industrialization of a novel P4 powertrain – From concept to industrialization of a novel P4 powertrain in 24 month S. I-45-I-78

„… hybrid driving mode, special control strategies have been implemented. Fig. 1: e-FDU Overview EMA …” „… , which is located at the output stage of the transmission. VDI-Berichte Nr. 2373, 2020 53 Fig. 6 …” „… 8.3 Station #3 + EOL Station #3 is dedicated to installation of pre-assembled transmission on …”

doi.org/10.51202/9783181023730

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Dritev 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2401 2022

Results in this title

K. Lee, M. Song, S. Lim Multi-body Dynamics of a Vehicle Axle System Based on a Time-varying Gear Mesh Model for Investigating Hypoid Gear Noise and Vibration S. 185-196

„… Multi-body Dynamics of a Vehicle Axle System Based on a Time-varying Gear Mesh Model for …” „… , wheel drive shafts, and rubber bush supports. The combined fully flexible Multi-Body Dynamics (FMBD) of …” „… mode of structural components incorporates a sophisticated hypoid gear contact considering time-varying …”

M. Hein, S. Prinke, A. Damm, P. Fischer Testing of shift elements – Standardized Methods, State of the Art and Future Challenges S. 73-94

„… Synchronizers are key elements in modern Dual-Clutch (DCT) or Manual (MT) Transmissions. They enable the easy …” „… Absicherung der Funktionssicherheit von Schaltelementen dienen. Abstract Synchronizers and multi …” „… elements, for example to realize multi speed functionality, for connect / disconnect applications or as …”

A. Eßer, J. Mölleney, S. Rinderknecht Potentials to reduce the Energy Consumption of Electric Vehicles in Urban Traffic S. 133-152

„… multi-speed BEV concepts, the "Two-Drive Transmission" (TDT) has been developed at IMS (Institute for …” „… . Additionally, constant transmission losses are considered, that are higher for the multi-speed concepts, due to …” „… battery capacity and further, the multi-speed transmission could possibly enable a downsizing of the EM …”

T. Skubacz, C. Burkhardt, S. Krischke Proof of Concept: Bistable Shift Element S. 241-252

„… and parallel operating modes. The use of a classic shifting element, e.g. a multi-disc clutch, would …” „… driving conditions. VDI-Berichte Nr. 2401, 2022242 Fig. 1: a) Multi-mode hybrid drivetrain b) E-axle …” „… powertrain parts. The shifting elements either realise different load paths, e.g. transmission paths, or …”

F. Lagier, N. Freund, K. Bause, S. Ott, A. Albers Simulation-based evaluation of high-speed PEEK gears in automotive powertrains and design of a validation environment for high-speed gears S. 223-240

„… high-revving traction engines and shiftable transmissions that enable downsizing of the electric motor. Such a …” „… increasing engine speed and despite the resulting need for a transmission. Further potential for saving …” „… automotive high-speed transmissions and present comparisons to reference drivelines. For this purpose …”

G. Göppert, M. Adrian AI Approach to Wet Friction Torque Model Adaptation S. 321-334

„… clutch supported ICE starts. In addition, multi-gear e-axle systems or mechanical torque vectoring units …” „… Local MLP: The simplest non-trivial AI model available is a Multi Layer Perceptron (MLP) [2]. We are …” „… . Fig. 1: Simple Multi Layer Perceptron (MLP) model (left) consisting of input layer, output layer and …”

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Dritev – Drivetrain For Vehicles 2018

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2328 2018

Results in this title

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

„… AVL’s Future Hybrid X Mode A modular transmission family concept AVLs Future Hybrid X Mode …” „… Entwicklungserfahrung mit dem Future Hybrid 7 Mode und 8 Mode DHT (Dedicated Hybrid Transmission) erstellt. Darüber …” „… Hybrid 7 Mode and 8 Mode DHT (Dedicated Hybrid Transmission). In addition, further sophistication in …”

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

„… [6] The G-Series offers three different selectable drive modes for the transmission. The ECO Mode is …” „… launched in 2018 with new efficient 8-speed automatic transmissions in combination with one Gasoline and …” „… Aisin AW G-Series transmissions 8G30 and 8G45 in Opel vehicles. The transmissions, also used in Peugeot …”

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

„… applied in automatic transmissions today. Concerning acceleration performance, for example, multi …” „… , and vehicle is in parallel mode. Second, the transmission is downshifted from gear 5 to gear 3. The …” „… transmission Dr. Wei Guo, Shengrui Transmission Corporate Limited, Shandong, China; Mick Jordan, M.Sc …”

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

„… – Integration of the dynamic behavior of all conventional-, electric-, and hybrid-transmission mode types in …” „… Friedrichshafen AG, Schweinfurt AVL’s future hybrid X mode – A modular transmission family concept …” „… , Bonn Main topics: Automatic and dual clutch transmissions Transmission topologies as part of …”

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 …” „… motor. The electric motors are coupled to the drive shafts via a multi-speed transmission, which can …” „… funded project called Speed2E [3]. Based on the idea of multi-speed transmissions for pure electric …”

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

„… combustion engine is combined with a high-torque electric motor and a multi-speed transmission each [4 …” „… propulsion. In boost mode, both drives provide torque in addition. The batteries are charged solely by …” „… 6-speed dual-clutch transmission which compactly incorporates a permanent-magnet synchronous …”

T. Smejkal, C. Wirth Innovative transmission topologies using the example of a P2-hybridtransmission for front-transverse applications S. I-147-I-162

„… creep functionality for reversing and parking. Modern transmissions reduce the drag losses of the …” „… , 2018 149 Fig 1: Characterization of MCT [2] Multi-clutch transmissions (MCT) use the same …” „… Automatic Transmission -AT- # Lo ad S hi ft E le m en ts # D og C lu tc he s 2 NDC 0 NLSE Multi Clutch …”

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

„… by means of modern transmission simulation methods Dipl.-Ing. Reinhard Buchberger, Dipl.-Ing. Dr …” „… transmission components is examined by means of a multi-body simulation model [4, 5, 6]. Of particular …” „… among the main conflicting engineering targets within developments of electric drive transmissions …”

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

„… of lightweight design, acoustics and efficiency by means of modern transmission simulation …” „… as various operating modes. Loss maps define the efficiency behavior, calculated in advance by a …” „… separate transmission loss calculation. It is possible to integrate up to nine electric machines into the …”

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 …” „… hybrid mode. Moreover, the size of the machine is such that for 60 s torque of M = 350 Nm there is no …” „… water cooling jacket of the stator, the automatic transmission fluid of the disengagement clutch in the …”

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

„… global transmission market. The power consumption of a traditional transmission oil pump represents the …” „… transmission’s level of efficiency any further. In addition, hybridization, sailing function, and electric …” „… driving make it necessary to have an actuation that is independent from the transmission’s input speed …”

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

„… for multi-speed gearboxes, which enables considerable improvements in performance, comfort and …” „… hybrid vehicles. GKN supports this goal with a broad portfolio of electric transmissions and axles, and …” „… advantage of designing the entire transmission as well as the sideshafts mechanically with significantly …”

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International Conference on Gears 2017

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2294 2017

Results in this title

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

„… planetary gears multi-degree-of-freedom modelling is built. Eigenmodes, dynamic transmission errors and …” „… modes less contribute to the dynamic transmission error. The spectral iterative appears to be an …” „… stationary conditions, multi-frequencial responses. These responses lead to parametric resonances when …”

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

„… . 1. Introduction The dual-mode electro-mechanical transmission system is an important form of …” „… heavy-duty vehicles with dual-mode electro-mechanical transmission, there are plenty of special problems …” „… planetary gears are used for the EMT. Fig.1: Structure of dual-mode electro-mechanical transmission …”

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

„… Design and experimental validation on a novel tow speed transmission for electric bus Jie Yu …” „… Technology Ltd., Fuzhou City, Fujian, China Abstract A two-speed transmission for electric vehicles is …” „… the drive system with proposed two-speed transmission, a bench test and a real driving cycle on …”

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

„… . Traditionally, multi-body models with only torsional degrees-of-freedom are used to calculate dynamic gear …” „… speed, torque and system resonance modes on the dynamic factors of a high-speed gearbox. The dynamic …” „… lumped-parameter model is excited by gear-mesh transmission errors to obtain the gear dynamic factors …”

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

„… 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 …” „… ) automatic transmissions in modern vehicles [2], which makes it much more difficult to predict their …”

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 …” „… Harshness) requirements - especially for electrified transmissions or e-Axle solutions. In case of making …” „… use of sintered gears in highly loaded applications like automotive transmissions, advanced net shape …”

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

„… . Eng. ME. Hans Hansson, Henrik Alm Grundström, Swepart Transmission AB, Liatorp, Sweden; Alexander …” „… . Multi Body Dynamic simulations have shown that by using beveloid gears and a balancing system creating …” „… in multi planetary gear train is the load distribution factor 1 . k 1 0,25 N 3 1.1 The …”

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 …”

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

„… generated by using multi parametric contour plots. This technique is based both on functional limitations …” „… terms of centre distance and transmission ratio, the simultaneous influence of pressure angle and …” „… transmission systems, the concept of high torque density, which means carrying more torque within the same …”

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

„… force 1. Introduction In mechanics, nutation movement is a new type of transmission mode based on …” „… Mechanical Engineering and Automation, Fuzhou University, Fuzhou, China Abstract Gear transmission …” „… systems are one of the most frequently used systems for power transmission. The characteristics of a gear …”

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

„… sets are multi-mesh systems formed by multiple branches of planet gears that are in mesh with a sun …” „… small truck transmission was adapted as the test planetary gear set in this study. Parameters of this …” „… analysis of multi-channel strains and deflections through root strain gauges and LVDT probes was to study …”

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

„… optimization of teeth numbers Modern powertrains of electric drive cars are driven by small machines with high …” „… transmission ratios, which can lead to high noise contrary to current comfort requirements. Identifying …” „… also possible to represent the planetary as threedimensional multi-body system (MBS), which offers the …”

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 …” „… would apply in an emergency. Fig. 4: Modern dual clutch gear unit with a load spectrum (6 forward …” „… system reliability can easily be understood by people who do not have a detailed knowledge of the modern …”

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 …” „… high accuracy and performance level is indispensable for a modern gear production in terms of quality …” „… automobile-size gear in a few minutes. However, large gears like the ones used in multi-Megawatt wind energy …”

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Dritev 2023

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2420 2023

Results in this title

J. Jennings, D. Finn, T. Hunter Novel Multi-Functional Clutch Technology for EV Drivetrain Disconnects – Next Generation Disconnect with One-Way-Clutch for Automatic, and Non-Blocked Shifting S. 325-338

„… axle disconnect for EV sailing mode. • Power shift 2-speed and multi-speed shift systems. • Shift …” „… reliably shift between forward propulsion, coast (disconnect), regeneration, and reverse modes. Design …” „… electronic park-lock, hill-hold and multi-speed shifting, combining the functions of historical ICE …”

C. Mohr Acoustic Optimization of Electric Powertrains from a Vehicle Level Perspective S. 471-XVI

„… transmission, also known as a "MultiMode transmission", Schaeffler is pursuing a further significant …” „… forces on the vibration behavior of a Multi-Mode transmission The optimization of …” „… , non-switchable transmission ratio, has been selected in such a way that the following operating modes are …”

L. Bayoux, K.-L. Kimmig, D. Reitz Has the potential in terms of weight, installation space, and function already been exhausted for hybrid transmissions? S. 205-220

„… vehicles, referred to as the "MultiMode Hybrid Transmission" (MMH), is currently under development at …” „… optimization opportunities beyond the current volume development of multi-mode hybrid transmissions. One …” „… overload in the transmission parts along the torque transmitting line. For the Schaeffler MultiMode Hybrid …”

A. Kappes, S. Frei, P. Noone, Stephan Rinderknecht Development and Design of a Range Extended four-speed Two-Drive-Powertrain S. 253-280

„… four direct gears in parallel modes. The basic idea and the advantages of multi speed and multi motor …” „… , multi-speed transmissions for electrified vehicles were analyzed and emissions were presented with regard …” „… : 4.13 EM peak power in kW 120 120 2x 60 With multiple EMs or multi speed transmissions, there is at …”

M. Gukelberger Magna’s Dedicated Hybrid Drive DHD Duo – a Platformbased two e-Machine System S. 197-204

„… including a 90 kW generator EM and a 90/140 kW traction EM. The DHD Duo features an electric and serial mode …” „… as well as a scalable parallel mode with 1 to 4 gears according to individual require-ments. The …” „… serial driving operation, as well as parallel mode operation at higher speeds. At low engine loads, the …”

T. Schneider, K. Völkel, K. Stahl Failure Characteristics of Wet-Clutches in Limited Slip Differentials S. 307-324

„… multi-plate clutches are used in modern automotive powertrains to perform essential roles in terms of function …” „… K et al. (2022) Failure Modes of Spontaneous Damage of Wet-Running Multi-Plate Clutches with Carbon …” „… , have increased the power density in transmissions over the last decades [1]. Consequently, wet …”

C. Reumüller, M. Sedlmair, M. Hein, A. Damm Transformation from conventional to electric powertrains Challenges in testing mechatronic shifting systems S. 359-376

„… multi-plate friction systems (MPFS) are typical shift elements in the drivetrain of ICE and Hybrid electric …” „… shift elements, for example to realize multi speed functionality, for connect / disconnect applications …” „… Electric Vehicles), classical single or multi-cone synchronizers as well as MPFS will become less important …”

H. Sandquist, E. Barrientos, S. Klacar Systemized Modular Approach for Electric Drive Unit Family Development S. 89-106

„… meet the power demands for most passenger vehicles. Multi-gear transmission is also available in order …” „… design. This suggests finding a suitable complete propulsion system solution, e.g., transmission …” „… solutions for two vehicles will be shown. A standardized transmission is used with adjustments in housings …”

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ELIV 2023

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2423 2023

Results in this title

T. Schwendner, M. Schlodder SAE J1939 in AUTOSAR – CAN FD and CAN XL – Achieve Higher Data Rates for J1939 Communication in AUTOSAR S. 635-644

„… , communication in modern E/E architectures has continued to grow, requiring higher transmission rates. The SAE …” „… Multi-PG concept, J1939-22 introduces changes to the Broadcast Announce Message (BAM) and Connection Mode …” „… condition for transmission of the Multi-PG is met (e.g. timeout or size). Similarly, IPduM unpacks a …”

S. Miller, L. Nicoletti A Holistic Approach for Designing a Battery Electric Vehicle Thermal Management System S. 77-90

„… mechanical connections enabling the transmission of torque between the electric powertrain and the driveline …” „… gearbox with a constant transmission ratio. The gearbox losses are modeled with a constant efficiency but …” „… environmental conditions and the temperatures of the powertrain components. In serial mode (A connects to B, C …”

K. Eliasch, Dr. P. Friedel, D. Li, D. Shan Cooperative Perception Services to Improve the Safety of Road Users S. 347-364

„… human errors[ 2 ]. Unfortunately, although modern ADAS and AD systems can increase individual safety …” „… , cyclists, pedestrians, etc. HELLA’s Radar has three working modes (near range, middle range, and long range …” „… multi-sensors and the V2X communication system. The system architecture is illustrated in Fig. 2 below. Fig. 2 …”

A. Heise Plug & Play High-Performance Computer (HPC) and Fluid Cooling Solution S. 159-168

„… modern vehicles. Therefore, software is taking the lead and rules the hardware. Centralized …” „…  256 GB/s). E/E architectures for the software-defined vehicle Modern software-defined vehicles require …” „… inserted into its frame/rack. The cooling pad consists of a robust welded multi-layer material which …”

L. Heinrich, M. Springer, D. Schütz, J. Pannek A Holistic Approach for a Universal Vehicle-to-Robot (V2R) Communication Interface S. 365-378

„… hardware. Based on modern Robot-to-Everything (R2X) and Vehicle-to-Everything (V2X) communication and an …” „… Communication Interface. To provide background for our UVCI concept, we elaborate on the modern R2X and V2X …” „… elaborate on the modern R2X and V2X communication examples and provide an overview of their capabilities …”

T. Löhr, B. Bauer Supply chain security risks of software driven products S. 479-496

„… supply chain operations. Both concepts are crucial for the effective and secure functioning of modern …” „… to recalls and reputational damage. Electronic Control Units (ECUs) in modern vehicles are …” „… information. In the era of connected cars, the collection and transmission of driver and vehicle data is a …”

doi.org/10.51202/9783181024232

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International Conference on Gears 2022

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2389 2022

Results in this title

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

„…   k , the contribution of the kth mode shape to the dynamic response when considering transmission …” „… % in the meshing for the transmission with the thin -rimmed/-webbed gear Mode Number Pinion Speed …” „… Influence of thin rimmed/-webbed gears on transmission dynamic behaviour – Approximate dynamic …”

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

„… . 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 …” „… aerospace application. In high-speed transmission, inevitable transverse excitations will generate traveling …”

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

„… . Kahraman, D.M. Zini, et al., Dynamic analysis of a multi-shaft helical gear transmission by finite elements …” „… Transmission Research assistant Aiqiang Zhang, State Key Laboratory of Mechanical Transmissions, Chongqing …” „… , most components in aviation transmission, including casing and shafting, are designed as irregular …”

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

„… al.[1-14] established an electromechanical coupling model of a multi-stage gear transmission system …” „… Study on Electromechanical Coupled Dynamic Characteristics of Transmission System of Wind Turbine …” „… Ruibo Chen, Datong Qin, Changzhao Liu, The State Key Laboratory of Mechanical Transmission, Chongqing …”

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

„… between NVH-performance of transmissions, gear quality /-costs, technology and process in gear …” „… currently experiencing a monumental shift towards electrification. Transmission for e-vehicles have usually …” „… about 1/3 of the gears of a classic 5 to 10 speed combustion transmission. Almost one decade ago, the …”

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

„… transmission error, a base map for dynamic multi-body simulations of the gear set are defined and used within …” „… . Introduction In modern drivetrain development the targets for dynamic response, efficiency and strength of …” „… and speed levels, delivering results for kinematic transmission error as well as information regarding …”

Titelei/Inhaltsverzeichnis S. I-XXVIII

„… optimization for multi-mesh and multi-power flow transmissions under a broad torque range incorporated with …” „… 45I. Hong, Z. Teaford, A. Kahraman, Gear and Power Transmission Research Laboratory,Department of …” „… Transmissions, Chongqing University, Chongqing, ChinaLocal pitting fatigue concept with EHL simulation for case …”

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

„… Lokaditya Ryali, David Talbot, Gear and Power Transmission Research Laboratory The Ohio State University …” „… observed in wind turbines due to the variation in wind speeds and different operating modes of the turbine …” „… and the internal excitation due to static transmission error. The non-linear and chaotic behavior of …”

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

„… transmission with a variable ratio during flight is necessary. TU Munich, TU Wien and Zoerkler Gears work in …” „… / variable rotor speed” that consists of a transmission with variable ratio and a rotor system with rotor …” „… of a rotor in Hover and Aircraft Mode of a Tiltrotor-/Tiltwing Aircraft. As the required speed range …”

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

„… 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 …” „… transmissions. With the advent of high-performance computing and the progress of computational fluid dynamic …”

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

„… to the minimum peak-to-peak transmission error (PPTE), and secondly the “worst-of-worst" (WOW) design …” „… peak-to-peak transmission error and subsequently lower excitations to the powertrain system. Introduction The …” „… designers require a rating of the noise for the overall transmission to clearly specify the sound pressure …”

P. I. Pedrero, D. Martinez–Lopez, M. Pleguezuelos, J. Calvo–Irisarri, M. B. Sanchez, A. Fernandez–Sison Minimum friction losses in wind turbine gearboxes S. 715-730

„… Calvo–Irisarri, Dr.-Eng. Miryam B. Sánchez, Eng. Alfredo Fernández–Sisón, Gamesa Energy Transmission – SGRE ON …” „… failure modes as wear, scuffing and pitting [2]. Thermal stresses may produce cracking failures [3]. To …” „… a specific multi-MW wind turbine gearbox of Siemens-Gamesa, presently in the design stage, are also …”

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 …”

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 …” „… modelled as a function of temperature and load velocity. The multi-physics simulation presented below …” „… affects the mechanical stress. This interaction becomes calculable through the time-resolved multi …”

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

„… gear pair 3. Results When testing gears up to 0.7 Nm torque, wear was observed as the main damage mode …” „… , 20221074which leads to a rapid failure. The failure mode that occurred was a combination of severe wear and …” „… , 2022 1081[5] P.G. Catera, F. Gagliardi, D. Mundo, L. De Napoli, A. Matveeva, L. Farkas, Multi …”

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 …” „… idealized model shown in Fig. 6 offers the possibility for large scale multi-parameter optimizations of …” „… many questions regarding machine element load capacity and efficiency for whole gear mod-ular systems …”

S. A. Bohme, J. Keski-Rahkonen, T. Komssi A standardizable approach to tooth flank fracture S. 371-388

„… of early-stagetooth flank fractures imply a mode II crack initiation under surface-parallel …” „… fracture (TFF).The failure mode TFF is characterized by crack initiation in the interface between the hard …” „… initiatetypically in mode II (in-plane shear) underneath the load-carrying tooth flank and propagate throughthe gear …”

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

„… failure. Introduction and state of the art Power density increase in modern powertrain concepts …” „… . By combining the high-revving drive with a multi-speed gearbox, the motor can be used more …” „… ) 84.29 Transmission ratio 1.84 Number of Teeth (i~1.84) 59 109 Load change number from dimensioning (in …”

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LAND.TECHNIK 2020

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2374 2020

Results in this title

N. Niebrügge, M. Terhaag, M. Ensink Full digital video solution as a forward-looking technology for High Speed ISOBUS S. 295-302

„… ” between ANEDO GmbH and the Hochschule Osnabrück, ANEDO GmbH developed a modern Ethernet based digital …” „… is limited and does no longer justice to modern technology. A major disadvantage of the analog …” „… electronic system on the machinery. A further aspect is the demand for multi view systems to monitor several …”

S. Raikwar, T. Herlitzius, J. Fehrmann Autonomous Navigation Strategy for an Orchard Robot Using Simulation Design S. 425-434

„… platform. This navigational unit includes motion planning, obstacle avoidance and data transmission module …” „… difficult for integration. This multi-level sensor fusion even makes the system cost intensive. Therefore …” „… power (kW) 30 Steering mode 4-Wheel Steering Communication CAN VDI-Berichte Nr. 2374, 2020 427 3 …”

doi.org/10.51202/9783181023747

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International Conference on Gears 2019

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2355 2019

Results in this title

H. Xu, D. Qin, C. Liu, Y. Yi, H. Jia Investigation of dynamic modeling and vibration transmission characteristics of helicopter main gearbox S. 449-460

„… 32.2 — 21.0 — 31.8 26.6 — The first mode shapes of transmission system with and without …” „… identical implication as in Fig. 1. After considering FH, the mode shapes of local transmission system is …” „… changed. Fig. 3: Comparison of first-order mode shapes of transmission system: (a) torsional mode and …”

B. Guilbert, P. Velex, P. Cutuli Hybrid models for the study of gear body dynamic deflections – Gear body modes S. 823-834

„… coupled mode when the full transmission moves over its bearings. The local modes, such as those of the …” „… analysis of a multi-shaft helical gear transmission by finite elements: model and experiment”, ASME …” „… Hybrid models for the study of gear body dynamic deflections – Gear body modes Ph.D. Berengere …”

J. Neufond, E. Rigaud, J. Perret-Liaudet, A. Carbonelli Influence of tooth profile modifications on the dynamic behavior of a planetary gear set – Experimental investigation and numerical validation for different amplitudes of tooth profile modifications S. 765-776

„… considered in order to study the influence of tooth profile modifications on the static transmission error …” „… corrections. First, the internal parametric excitations, corresponding to the static transmission errors (STE …” „… are widely used in automatic gearbox transmissions of hybrid vehicles, energy production systems such …”

J. Tavčar, J. Kos, D. Zorko, J. Duhovnik A multi-criteria polymer gears design optimisation procedure S. 1473-1484

„… A Multi-criteria Polymer Gears Design Optimisation Procedure J. Tavčar, PhD, J. Kos, D …” „… manufactured at low costs in a multi-cavity tool by means of injection moulding. A weak property of polymer …” „… gears is their sensitivity to higher temperatures, as well as a variety of failure modes that depend on …”

J. Han, Y. Zhu, X. Tian, L. Xia A method of tooth longitudinal modification for internal gearing power honing S. 1725-1738

„… internal gearing power honing is widely used in the gear processing of automotive transmission, aerospace …” „… , robotics and other fields. With the increasing demand for gear quality in modern industry, modified gears …” „… are widely used in high-speed transmission equipment to meet the requirements of service life …”

M. Lutz, J. Hermes Use of multiple-body simulation during the development process of gear units S. 1077-1086

„… multi-body simulation, the time signals of the loads within the transmission can first be calculated and …” „… six sizes with a transmission bandwidth of 3 to 1000. Output geometry, VDI-Berichte Nr. 2355, 2019 …” „… , the mode reduction is performed and the result converted for the MBS software [2]. A Comparison of …”

Z. Zhan, H. Liu, C. Xiang, Q. Yan, H. Li, W. Wei, L. Xu Study of lateral and torsional vibration distribution of two-stage planetary gears based on vibration energy theory S. 1245-1252

„… . Introduction Gearbox is one of the core components in the transmission system. A failure of the gearbox may …” „… cause breakdown of the whole machinery and bring accident and economic loss. Currently, multi …” „… transmissions, and they have more complex structures than ordinary gear train. Thus, accurately analyzing …”

Titelei/Inhaltsverzeichnis S. I-XXVI

„… : modes, noise and modifications application and validation of simulation and experiment …” „… ., Zhengzhou, PR China f Transmission error Investigation of transient response motion of differential …” „… dynamic transmission error for nutation drive with double circular arc gears under assembly errors and …”

F. Concli, C. Gorla Dynamic models for planetary gearboxes SHM S. 471-480

„… that can be achieved, they are employed for transmissions with high power density. There are several …” „… fields of applications of this type of transmissions, including but not limited to automotive, aerospace …” „… the transmission, based on a hybrid FE-analytical formulation. The method used also allows to …”

X. Yang, N. Yue, Q. Yang, L. Wang, Y. Shao, H. Xiong Dynamic simulation for double input compound power-split mechanism of in-wheel motor driven EVs S. 481-492

„… Gene L., Ming-Yen C.: Analysis of multi-speed transmission and electrically continuous variable …” „… EVs Xiaodong Yang, Nian Yue, Qifan Yang, State Key Laboratory of Mechanical Transmission …” „… China; Liming Wang, Yimin Shao, State Key Laboratory of Mechanical Transmission, Chongqing …”

B. Schlecht, T. Schulze Improved tooth contact analysis by using virtual gear twins – How helpful is AI for finding best gear design? S. 203-216

„… micro geometry of tooth flank In the final step, the transmission is optimized in terms of load …” „… respective design mode. Figure 9: Dataset from MDESIGN for Machine Learning In the next step …” „… design modes is thus adequately transferable to neural networks by a sufficiently large amount of data …”

V. I. Goldfarb, E. S. Trubachev, K. V. Bogdanov, T. A. Pushkareva Prospects of manufacturing spiroid gears with small gear ratios S. 1665-1674

„… problems of manufacturing multi-thread worms and hobs. Different versions of solving this problem in …” „… methods of analysis and the production technique are proposed basing on application of multi-thread hobs …” „… or multi-tooth assembled running-in cutting heads. For the second case, high production-efficient …”

doi.org/10.51202/9783181023556

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Kupplungen und Kupplungssysteme in Antrieben 2021

VDI Wissensforum GmbH (ed.)

Series: VDI-Berichte

Volume 2382 2021

Results in this title

D. Groetsch, K. Voelkel, H. Pflaum, K. Stahl Echtzeit-Temperaturberechnung und Temperaturprädiktion nasslaufender Lamellenkupplungen S. 115-128

„… Real-Time Temperature Calculation and Temperature Prediction of Wet Multi-Plate Clutches M.Sc. D …” „… Überdimensionierung von Kupplungen. VDI-Berichte Nr. 2382, 2021 115 Abstract Many applications of wet multi …” „… to “loss of drive”. The main criterion for the estimation of damage and endurance of wet multi …”

M. Hoić, B. Škugor, A. Miklik, J. Deur, A. Tissot Experimental characterization and modeling of dry clutch wear with emphasis on fading effect S. 265-278

„… topology-change model of multi-speed transmissions in electric vehicles during gear-shifting. Mechatronics 55 …” „… friction [2]. While typically associated with manual transmissions (MT), automated dry clutches have also …” „… been introduced in clutch-by-wire (Eclutch) [3, 4], Automated Manual Transmissions (AMT), Dual Clutch …”

V. Föge, S. Blaschke New semi-dry friction solution for highly integrated active torque-controlled drives S. 103-114

„… and BEV due to modern drive trains and increasing complexity leads to a conflict. Higher torque …” „… lifetime corresponding to the capacity of 300 road tankers in dualclutch transmission (DCT) applications to …” „… Group to make a multi-million strategic upstream investment into an own paper mill. Miba’s unique and …”

A. Bischofberger, S. Ott, A. Albers Einfluss von Betriebsgrößen auf die Schwingungsreduzierungswirkung im nasslaufenden Kupplungssystem: Empirische Modellbildung – Kennfelder und Skalierbarkeit S. 11-28

„… wet-running multi-plate-packages in controlled slip mode. In: 44. Leeds-Lyon Symposium on Tribology. Lyon …” „… increasing hybridization VDI-Berichte Nr. 2382, 2021 11 and automation of transmissions. An extension of the …” „… space and mass. The modern wet-running clutch system also offers a major advantage over conventional …”

R. Leister, J. Kriegseis, B. Frohnapfel, D. Gatti, A. F. Najafi Analytical modeling and dimensionless characteristics of open wet clutches in consideration of gravity S. 129-144

„… Abstract Wet clutches are widely used in power transmission, but lack of the fact of an energy loss in …” „… remaining torque despite its disengaged mode, due to the sub-millimeter spacing of the disks and the …” „… numerical or experimental data. Abstract Wet clutches are widely used in power transmission, but …”

doi.org/10.51202/9783181023822

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