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VDI Wissensforum GmbH - Commercial Vehicles 2019

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VDI Wissensforum GmbH (ed.)

Commercial Vehicles 2019

Series: VDI-Berichte

Volume 2350 2019

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D. Nötzke Born digital – How BPW is revolutionising the configuration, ordering and production of running gears S. 137-148

„… gears Dr.-Ing. Dirk Nötzke, BPW-Bergische Achsen KG, Wiehl Abstract Complexity of global …” „… product to create customer benefits through configuration in a web-based shop system, the BPW running gear …” „… configurator. As a B2B platform, the running gear configurator differs significantly from the B2C web shops …”

A. Danninger, E. Armengaud, N. Knopper Implementation of Powertrain control for economic, low real driving emissions and fuel consumption – Measures for Fuel consumption reduction in Long Haul traffic S. 293-312

„… problems solving the power split, optimal gear selection, ancillary utilisation and so forth are then …” „… dynamic c programming problem. It finds the optimal selected gear trajectory, given constraints on maximum …” „… strategy is shown in Fig. 10. Optimization states are gear selection, power mode (electric, hybrid), and …”

M. Lamke, M. Eisele, F.-D. Speck ZF Kit for E-Mobility Products for Commercial Vehicles S. 73-86

„… cooling for gear & shafts and other as well as the electrical components. Last but not least, the …” „… gear set. CeTrax is under development, SOP is scheduled for 2020. There are different models for the …” „… integrated into the wheel hubs. It consists of two 125 kW induction motors with two gear sets and a fixed …”

J. Hintereder, S. Sattler, U. Gunzert Development of a disruptive semitrailer tractor in light-weight construction S. 45-60

„… highlighted running-gear components 2.2 Characteristics of the reference vehicle Standard …” „… system on running-gear forces beforehand, both experimentally and mathematically. For this purpose a …” „… distribution transport increase only minimally, which allows the use of corresponding near-series running-gear …”

G. Schünemann The eTrailer – Intelligent hybridization for heavy duty commercial vehicles – Electric drive installed in a semi-trailer and integrated in the truck & trailer overall brake system control leading to s... S. 87-98

„… . The existing ISO1199-2 brake and running gear interface between truck and trailer has been used to …” „… . Especially an optimized motor-gear integrated solution as well as a battery with balanced capacity and …” „… . the gearshift logic of the prototype vehicle tries to support the deceleration by using the engine …”

Titelei/Inhaltsverzeichnis

„… and production of running gears …”

G. Milton, H.-M. Koegeler, R. Varnhagen Validating the fuel consumption of trucks featuring a dynamic electronic horizon in real world traffic: methods and results S. 149-174

„… features such as predictive cruise control and predictive gear shift control. These features can provide …” „… gear selection and eco-coasting Predictive combustion control Predictive aftertreatment system …”

M. Fritz Modular Platform Approach for Electric Drive System in Commercial Vehicles S. 103-114

„… module. As an alternative, it can also be used for a gearshift actuator in a two-speed axle, a parking …”

doi.org/10.51202/9783181023501

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VDI Wissensforum GmbH (ed.)

Dritev 2023

Series: VDI-Berichte

Volume 2420 2023

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N. Missal, S. Schwertel Innovative cold metal forming processes for a sustainable future – Moving forward with helical gear drive components in a resourceand energy-efficient way S. 295-306

„… Innovative cold metal forming processes for a sustainable future Moving forward with helical gear …” „… Automobilindustrie leisten. Abstract Current manufacturing processes for external helical gears are associated with …” „… pro-cesses or insufficient gear quality. Developing the Felss axial forming process prevents the negative …”

P. Geradts, M. Kasten, A. Landvogt Psychoacoustic optimization of the NVH behavior of an eDrive power train – Application of a Targeted Micro Geometry Scatter on Helical Gears to break-up the regularity of the transmission error excita... S. 459-470

„… Micro Geometry Scatter on Helical Gears to break-up the regularity of the transmission error excitation …” „… . Abstract Enhancements to the gear whine NVH performance of transmissions have increased in signif-icance …” „… the gear teeth. The primary goal of the standard design and simula-tion process is to reduce the …”

R. Plavullathil, M. Rihn, C. Bridier Marelli’s eAxle family strategy – Agile answer to a moving EV market S. 281-294

„… gear architectures that can be adapted to any torque range. Presentation of Marelli EPT Strasbourg …” „… , especially for the gears. Finally, additional systems with a design common to all variants will be available …” „… applications, i.e. for vehicles with different characteristics. In this respect, the motor, inverter and gears …”

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

„… Schaeffler sheet metal bevel gear differential, which can be used in hybrid and electric vehicles. To …” „… and planetary gear sets can also be implemented to minimize the flow VDI-Berichte Nr. 2420, 2023206 …” „… Fig. 4: Topology and energy flows in Schaeffler's hybrid transmission The gear unit is designed as a …”

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

„… vehicle applications, Figure 3. A second variant adds a gearset extension that provides two gears. This …” „… as well as a scalable parallel mode with 1 to 4 gears according to individual require-ments. The …” „… scaled through the number of gears for the parallel mode. The DHD Duo platform is compatible with any …”

D. Schweigert, B. Morhard, F. Oberneder, L. Pointner-Gabriel, M. Otto, K. Stahl Speed4E: Simulative and Experimental Results on the Vibration Behavior of a High-Speed Planetary Gearbox S. 441-458

„… Mechanical Engineering, Gear Research Center (FZG), School of Engineering and Design, Technical University of …” „… management based on a water-containing gear fluid. The water-containing gear fluid is used for cooling the …” „… gearbox with ST1 and ST2 and the differential. ST1 has a fixed gear ratio and contains a planetary gear …”

C. Gürlich, S. Demmerer, M. Winkel, K. Führer Transmission – the most underestimated part of the electric drive – Next generation transmission S. 183-196

„… torque loads, making it ideal for use in a variety of vehicles. The planetary gear set of the reduction …” „… have different characteristics. Because of this, there is no need for multiple gears since the electric …” „… gear is still the norm. VDI-Berichte Nr. 2420, 2023184 Fig. 1: a) ZF has consistently designed the …”

Z. Liu, S. Rinderknecht A sequential adaptive sampling strategy for surrogate model construction of transmission losses S. 425-440

„… torques, oil temperatures and gears as the operating conditions, and the operating points are selected …” „… to alternately shift gears without power interruption. Hydrodynamic drag losses can be generated, due …” „… are separately coupled with C1 and C2 (in Fig. 3) and carry odd and even gears, respectively. Gears …”

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

„… arrangement enables full torque support during gear changes. Furthermore, the possibility and benefit of an …” „… fourth gear, which brings only small further efficiency advantages for electric driving, but makes it EM1 …” „… four direct gears in parallel modes. The basic idea and the advantages of multi speed and multi motor …”

J. Bonifacio, V. Warth, S. Scharr Optimizing sustainable high-performance e-drives S. 349-358

„… choice of the gear-ratio and special requirements for high power automotive applicationsGearbox design …” „… typical spur gear concepts with 1 or 2 stages, planetary concepts, as well as axial-parallel and coaxial …” „… need of any additional part. The e-motor is connected to a central sun gear whereby the left and the …”

B. James Demonstration of a Cloud-based Gearbox Digital Twin – Using telematics data for reliability predictions S. 165-182

„… the years and implemented in standards (ISO 6336 for gears, ISO 16281 for bearings [4]) that have …” „… the prediction of gear and bearing performance over recent decades. Housing stiffness has been shown …” „… to impact on gear and bearing misalignment and hence life [5], and this is included; likewise, gear …”

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

„… gears, limited slip differentials, active torque vectoring or connect and disconnect systems for axles …” „… require many gears, a central actuation unit is uneconomical. Shifting elements in BEV drivetrains are …” „… ) clutches is the gear shift actuation of typically 2-speed gear boxes. These shift tasks can be realized …”

Titelei/Inhaltsverzeichnis

„… a sustainable future – Moving forward with helical gear drive components in a resourceand …” „… , Königsbach-SteinFailureCharacteristicsofWet-ClutchesinLimitedSlipDifferentials 307T. Schneider, K. Völkel, K. Stahl, Gear Research Center (FZG), School ofEngineering and Design …” „… . Oberneder, L. Pointner-Gabriel, M. Otto, K. Stahl, Department of Mechanical Engineering, Gear Research …”

J. Gindele, F. Faistauer The Future of BEV: High Performance Without Compromising Driving Efficiency S. 37-44

„… realize the concept of complementary drives involves combining a front axle with a long gear ratio and a …” „… decouplable rear axle. The front axle's gear ratio is carefully selected to cover the efficiency-optimized …” „… be used to some extent for 2WD drives if a two-speed transmission is added. The gear ratio of the …”

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

„… customer needs Drivetrain including gears, differential, and drive shafts – available in both coaxial and …” „… meet the power demands for most passenger vehicles. Multi-gear transmission is also available in order …” „… modular design High efficiency low friction ball bearings High tooth gears, high precision honing process …”

J. Merckling Comparison of Efficiency of Tapered Roller Bearings and Deep Groove Ball Bearings in Electric Vehicle Intermediate Shaft Applications S. 339-348

„… . Conditions from an actual electric vehicle were modeled, including motor torque and speed, gear and shaft …” „… geometry, shaft and housing materials, operating temperatures, and bearing- and gear-mounting distances …” „… through the housing to the outer bearing. This method of loading simulates the helical gear thrust load …”

J. Ahn, S. Yang Disconnect Actuator System (DAS) for AWD EV’s Driveline – Increasing electric efficiency, Seamless shifting system S. 115-130

„… with a maximum rotational speed of 15,000 to 19,000 rpm, using a gear ratio of 9 to 11 using the first …” „… and second gear sets. As mentioned above, as shown in Fig 3, the DAS system can configure layouts on …” „… the input shaft, the intermediate shaft, and the output shaft. Due to the reduction gear ratio, the …”

C. Mohr Acoustic Optimization of Electric Powertrains from a Vehicle Level Perspective S. 471-0

„… combustion engine, gear noises oc-curring in the transmission of a purely electric vehicle are not masked by …” „… optimization of gears, from the transverse contact ratio through to tooth flank modification. However, as …” „… particular relevance, Figure 8. Once again, the de-velopment goal is not necessarily to reduce the gear noise …”

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

„… parasitic drag losses are reduced or eliminated. This includes the hypoid gear meshes in the PTU and RDU …” „… OWC technology. The controllable reverse torque for regeneration mode and Reverse gear is managed …” „… Reverse Gear - reverse torque Additional System Opportunities & Benefits • Simplified Controls …”

T. Hofman, J. Van Kampen, O. Borsboom Electric Mobility Design – From Powertrain Components to Vehicle Fleet Optimization S. 391-410

„… (Example picture: Top Gear Magazine, 2019) 1.2 Customer-tailored Product Family Design for Multiple …” „… transmission. The battery pack and transmissions are both subsystems consisting of 24 modules and 2 gear pairs …” „… designing a one and two-speed transmission was formulated, given a desired gear ratio. Fig. 16: Electric …”

Y. Jin Smart eDrive – Autonomous cooling eDrive for small BEVs and P4 AWD S. 21-36

„… rotating part, including the gears and the bearings. VDI-Berichte Nr. 2420, 202328 Fig. 10: Lubrication …”

A. Freiburg Virtual development – optimized E-Drive selection by system simulation S. 73-88

„… motor, gear stage and a virtual vehicle control unit is shown in Figure 11. VCU ELEC is a control unit …”

C. Gropp Leading sustainable transportation: Bringing our vision to the road S. 1-12

„… displacements from 4 to 16 liters and transmissions with up to 16 gears, a large variety of axle ratios as well …”

S. Yan, P. Piecha, N. Hetzel Virtual Generation of Load Profiles and Spectra for Designing Electrified Vehicles – The influence of software and driving scenarios on powertrain design S. 377-390

„… well as gear selection. An important attribute of the driver model is the parameterization of the …”

M. Magnusson, O. Nicklasson, H. Jacobsson Electric Cross Differential, eXD S. 235-252

„… actuator. The input torque from the E-motor transmission is transferred via the gear box diff case to a …”

doi.org/10.51202/9783181024201

VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2018

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain For Vehicles 2018

Series: VDI-Berichte

Volume 2328 2018

Results in this title

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)

„… Investigation of Gear Shifts in a Parallel-Series Hybrid Powertrain with Dog Clutches in a …” „… powertrain concept offers potentials in terms of a high energy efficiency and that gear shifts can be …” „… internal combustion engine in case of gear shifts and mode changes. In the course of the publically funded …”

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

„… electric oil pump. The transmission gear system is composed of three planetary gearsets (PG1-PG3), four …” „… AT-based P2 hybrid transmission, the gear shift clutches and the engine disconnect clutch are relatively …” „… controlled by hydraulic systems through the connection of planetary gears and clutches. According to the …”

M. Roßhuber, G. Schromm, K. Kranz The new BMW automatic transmission – Challenges in development

„… reduced. New functions for shift process and shift points allow precise and quick gear changes with …” „… concept, are the gear set topology, the drive-off element with the torsional vibration damping system …” „… as gear number and subsequently the number of gear sets and shift elements represent the major …”

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

„… hardware and gearset stick diagram The first gear G1 with the driving wheel on the input shaft IS1 is …” „… engine application, because they are primarily used as gear-shift clutches and the shifting frequency is …” „… , as no gear can be disengaged in a concept with only two speeds and no gear-shift actuating elements …”

B. Arnold, B. Lecointre Shift simulator for shift feel and quality development of manual transmissions

„… of the user such as vehicle speed, engine rpm, engaged gear, movement of shift lever in shift and …” „… been modelled: gear lever, shift cables, internal shifter mechanism, forks, synchronizers, gear trains …” „… , shafts and gears down to the wheels. In addition, vehicle body mass and engine inertia are added to …”

M. Bahne, U. Frey, G. Schlager Transmission technology contribution to CO2 roadmap – a benchmark

„… better torsional damping and wider gear-spread, thus achieving lower specific engine consumption …” „… ), torsional dampers (SMF, DMF, pendulum damper), transmission design (hydraulic and mechanical losses, gear …” „… . A transmission’s fuel efficiency is determined not only by its gear design (number of gears, ratios …”

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

„… . Mithilfe des von der ZG GmbH entwickelten Getriebesyntheseprogramms "PlanGear" können neuartige …” „… torque converter. With the help of the transmission synthesis program “PlanGear”, developed by ZG GmbH …” „… , innovative transmission topologies, consisting of planetary gears, helical gears, dog clutches and more than …”

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

„… and PHEV on the market today are using single speed gear trains. But a fixed ratio usually requires a …” „… torque in first gear and electric assistance up to top speed in second gear. The gear shift concept …” „… development targets will be discussed and the gearbox design proposed. Detailed explanation of the gear …”

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

„… topology draft of this topology. Needed information are e.g.: - Type and number of gear elements …” „… (elementary minus gear planetary set, spur gear stage) - Stationary ratios - Shaft number (inter alia: 0 …” „… clutches) - Gear ratio and gear ratio depending torque and rotational speed factors of gear and shift …”

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

„… massively transformed components such as shafts and gears. As a basis for determining the lightweight …” „… detail. These serve as reference values for optimizing the gear unit and are re-dimensioned using …” „… of the individual gear subsystems, such as shafts and gear wheels, can be mapped during dimensioning …”

M. Hein, T. Tobie, K. Stahl Holistic approach for fatigue life design of vehicle transmissions

„… , Dr.-Ing. Thomas Tobie, Prof. Dr.-Ing. Karsten Stahl, Gear Research Centre (FZG), Technical University …” „… gears, toothwidth of the gears and safety factors against different gear damage mechanisms. If a lot of …” „… mechanisms for vehicle transmission gears Vehicle transmissions are usually designed for limited life …”

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

„… functional enhancements, such as in the shifting sequence or the transmission system – increases in the gear …” „… involved examining the 8HP gear set system and then finding and assessing 9 and 10-speed systems. One …” „… important assessment criteria was the impact on CO2. The main goal was to widen the gear ratio spread and …”

T. Nishikawa, Tomoo Kubo The development of a low friction and low viscosity final drive oil

„… development of a new F/D gear oil that could contribute to all friction factors (Fig.1) even if the F/D is …” „… operating under very severe environmental conditions, such as high gear contact pressure and high sliding …” „… speed. Previously, we developed a synthetic F/D gear oil (SAE grade 75W-90) with lower viscosity for …”

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

„… 308 GT and DS7 Crossback, cover a range of up to 300Nm and 450Nm with wide gear spreads of 7,54 and …” „… developed super low viscosity oil together with improved gear surface finishing and improved friction …” „… transmission The G-Series transmission’s eight forward and one reverse gear are realized by a front double …”

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

„… gearbox-internal design parameters. They affect gear ratio, configuration of gearwheels, outer shape of the gearbox …” „… introduced differential evolution-based process delivers design parameters of shafts, gears, bearings and …” „… ) gear wheels, b) shafts, Design problem Shafts? Bearings? Gears? Housing? Requirements Input Solutions …”

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

„… the upstream e-machine configurations (like P2), the total torque transfer, especially in low gear …” „… components of the system are two variating elements: one Pushbelt CVT variator and one planetary gear unit …” „… , as can be seen in Fig. [6]. The latter has its sun gear connected to the ICE (internal combustion …”

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

„… tasks related to NVH, efficiency and low weight: Gear macro geometry Selection of number of teeth …” „… and tooth meshing orders superimpose, since this would lead to harshness or beat phenomena. Gear …” „… macro geometry design is also very important for further system attributes. Main challenge in gear …”

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

„… electric motor drives two planetary gear sets through a double reduction helical gear set. The input side …” „… connect the motor to the differential case through a double reduction helical gear set. The motor can …” „… the motor to a sun gear through a double reduction helical gear set. The other planetary connections …”

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

„… transmission incorporates a Ravigneaux planetary gear set, a manipulating idler with two gear meshes, two …” „… clutches and two brakes in a central housing. With interchangeable modules of electric machines, gears and …” „… an associated gear train, an inverter, a battery, a control unit, a charger and the wiring between …”

A. Dietrich, H. Klampfl “Friction Stir Welding” – Lightweight through manufacturing technology – The path from a concept to revolutionary gearbox manufacturing

„… central machine element, which transmits the torque and provides the desired gear ratio, is a hypoid …” „… bevel gear set. This gear set is built into a housing which gives bearing support to the gears …” „… , supports the input torque and the reaction forces of the gears, and manages the lubrication flow. Today …”

Y. Endo Development of new torque converter lockup control for new generation of infiniti QX50

„… (here after CVT8) which is capable of selecting the optimal gear ratio at all times is combined with …” „… control of the gear ratio at all times in response to the driver’s demands. This works to optimize power …” „… high power engines. The chain-driven variator changes the gear ratio seamlessly, enabling quick …”

C. Braykoff, B. Zornek, K. Johann Moser, C. Wirth Modular drivetrain concept for electrical commercial vehicles

„… allows an upgrade of existing axles with an additional planetary gear stage in order to meet the …” „… speeds of the electric motor, the planetary gear stage also helps preventing increased noise of the …” „… axle caused by the bevel gear set. Due to its modularity, this concept can in principle be applied to …”

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

„… technically highly simplified, sometimes come with a reduced number of gears, without synchronization or …” „… , shift points, gear ratios and combustion engine behavior. The transition of wheel torque can be …” „… electric power limitations longitudinal acceleration vehicle velocity actual gear 0 1 2 3 ac ce le …”

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

„… and just allow to compete with a manual transmission driver that chooses the gear economically under …” „… . A sensor located on the gear selector detects the driver’s wish to shift and opens the clutch …” „… % then, whereas the more simple MTplus will allow coasting strategies in the upper gears only which …”

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

„… gears, planetary gear sets (PGSs), clutches, and brakes. All components that can be used to build a …” „… : Electric machine EM 2 3: Wheels W 1 4: Gear pair GP n.l. 5: Planetary gear set PGS n.l. 6: Clutch C n.l …” „… provide power. Both the ICE and EM1 have a fixed gear ratio to the wheels and can provide power. For a …”

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

„… included dual mass flywheel adaptation to the new engine versions, dual clutch reinforcement and gear set …” „… : Reinforcement of gear set In addition to the changes to the transmission input, the increased torque also …” „… necessitated a gear set modification. In the gear set for 400 Nm, only the gearing on the output – bevel …”

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

„… differentials, only fixed gears. Hence, it behaves like a locked powertrain transferring power mechanically by …” „… cornering. This managed by superposition gears in the lateral distribution of each driven wheel. To realize …” „… gears and differentials. The control of the powertrain is mainly determined by the ECU. This brings the …”

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

„… – combines the robust technology of a gap-compensated gear pump with the know-how from the development of …” „… manual gear changes (Tiptronic) high-load startup with shifting towards overdrive hard braking with …” „… supply ensures that the gear chambers of the clamping pump are filled well even at high speeds. A spray …”

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

„… the input power manly by the mechanical gear part. In the partial load range and while driving in …” „… Design (MSE) at the RWTH-Aachen University is developing innovative power-split gear concepts with …”

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

„… enable the following: Measurement of gear backlash. This in turn can be used to provide …”

C. Körtgen, G. Morandi, G. Jacobs, Achim Kramer Efficient development by means of automated calibration of tractor control units

„… vehicle speed requires the appropriate selection of the ratio by choosing the mechanical gear and the …”

K.-P. Fritsch Industry 4.0 in the automatic transmission production

„… increasing support requests from ZF sister plants, a solution concept was searched in the area of gear …” „… . 2. 4 Current status Currently, the digitized expert knowledge for the gear hobbing process is …” „… available in German and in English. Now all technologies and processes in the field of gear machining in …”

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

„… compensated. Start-up and gear shift support work in the same way here. In addition, a quick load reduction …” „… functionality, the intelligent gear shift lever is separated from the powertrain CAN and connected to a separate …” „… , a load step to 100 % is performed at a constant speed of 50 km/h with a fixed 5th gear. The results …”

C. Ahn Churning oil path optimization process development – Application of moving particle simulation method to design process

„… done on different gear speed and temperature to decide adequate particle size and simulation …”

K. Bennewitz, A. Mann Powertrain electrification exemplified by the VW Golf

„… by the powertrain management based on vehicle speed and the gear preselected by the dual-clutch …” „… the selected gear. The transmission control unit (TCU) triggers torque synchronization subsequently …” „… speed threshold of the combined start was selected on the basis of comfort and is depending on gear …”

Titelei/Inhaltsverzeichnis

„… � � � � � � � � � � � � � � � � � � � � � � 305 M. Kneißler, R. Welter, M. Baumann, Schaeffler, Bühl Investigation of gear shifts in a …”

C. Danzer, T. Voigt, T. Günther, R. Tröger From fleet requirements to optimized Dedicated Hybrid Powertrains

„… , optimized transmission gear ratio series make a significant contribution to achieve minimal fuel …” „… variation of gear ratios for different technologies, such as AT, DCT, MT or AMT with variable actuation …”

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

„… l petrol engine, 6 gears manual gearbox). A second variation is the vehicle provided with an …”

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

„… . This off-axis architecture provides additional benefits such as an applicable gear ratio or the …”

R. Bredtmann, M. Beck, O. Mühlfeld, K. Olesen, O. Shajarati Robust multi-chip power module for effective integration to automotive powertrains – Danfoss DCM™1000 meets future automotive requirements

„… ) Electric axles with integrated chassis components, differential gear, electric motor and traction inverter b …”

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

„… number of gear ratios and total spread, in order to optimize the ICE operation regions. Nonetheless, an …”

L. Dedeleit, M. Ayeb, L. Brabetz Short circuit calculation of permanent magnet synchronous machines with comsol multiphysics

„… standstill. The resulting vehicle accelerations can be calculated depending on the vehicle mass and the gear …”

M. Werra, A. Ringleb, C. Sieg, F. Küçükay Thermal behavior of 48 V hybrid systems

„… module and ultimately VDI-Berichte Nr. 2328, 2018530 lead to speed and torque. After this the gear …”

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

„… possible in physical vehicle environments. For example, the effects of optimizing the gear shifting logic …”

doi.org/10.51202/9783181023280

Hans Peter Lenz - 38. Internationales Wiener Motorensymposium 27.-28. April 2017

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Hans Peter Lenz (ed.)

38. Internationales Wiener Motorensymposium 27.-28. April 2017

Series: Verkehrstechnik/Fahrzeugtechnik

Volume 802 2017

Results in this title

A. Müller, R. Holler, M. Dlapka, P. Pichler Pulvermetallurgische Verbundzahnräder zur Optimierung von NVH Eigenschaften moderner Verbrennungskraftmaschinen in PKW Anwendungen /Powder Metal Compound Gears for Optimizing NVH Characteristics for S...

„… . Literaturverzeichnis [1] Derek Smith; Gear Noise and Vibration; Marcel Dekker, Inc. (2003) [2] Sandner C., Dickinger …” „… J., Roessler H., Orth P.: Advanced Applications for Sintered Gears; EuroPM 2004 Vienna, Proceedings …”

P. Ramminger, R. Matthé, M. Herrmann, R. Jäger Das elektrische Antriebssystem im neuen Opel Ampera-e/The Electric Propulsion System in the New Opel Ampera-e

„… drive unit designs, and gear ratios were considered. Figure 1: Drive Unit Axle Torque …” „… , lubrication system, sumps for cooling and lubrication, gear reduction, differential split to outputs, park …” „… internal and external components are integrated. Gear Scheme, Structure, and Packaging The DU was …”

S. Kiga, K. Moteki, S. Kojima Die weltweit erste Serienproduktion eines Motors mit variablem Verdichtungsverhältnis – Der neue Nissan VC-T Motor /The World’s First Production Variable Compression Ratio Engine – The New Nissan VC-T...

„… mechanism described above. The VCR actuator used in this system comprises an electric motor and gear …” „… control shaft. A new Harmonic Drive® gear unit capable of a high reduction ratio in compact space and …” „… , which could be used to lay out an external gear oil pump with low drive friction (Fig. 16). Fig …”

T. Toda, M. Sakai, M. Hakariya, T. Kato Der neue 2.5L Reihen-4-Zylinder-Ottomotor mit Toyota Neue Global Architektur Konzept /The New Inline 4 Cylinder 2.5L Gasoline Engine with Toyota New Global Architecture Concept

„… gear (Figure 36) has been implemented for the customer confortable driving. Some gears are made by …” „… resin with aramid fiber reinforcement for preventing gear noise same as current technology. Generally …” „… the drop in G just after shifting from first to second gears is lower, and smooth and continuous G …”

M. Younkins, A. Tripathi, J. Serrano, J. Fuerst, H.-J. Schiffgens, J. Kirwan, W. Fedor Dynamic Skip Fire: Die einzigartige Zylinderabschaltung/Dynamic Skip Fire: The Ultimate Cylinder Deactivation Strategy

„… on a per-event basis enables efficient, millisecond torque modulation, allowing gear shifts without …” „… performance of DSF is shown in Figure 17. In this example, vibration is shown in 3rd gear under constant …”

A. Lippert, C. Trapp, J. Laubach, C. Nelson, F. Nota, A. Avagliano, N. Prendiville GE’s J920 Großgasmotor kombiniert wegweisende Technologien und innovatives Digital Monitoring, um mehr als 50 % elektrischen Wirkungsgrad zu erreichen /GE’s J920 Large Gas Engine Incorporates Latest T...

„… moderner Verbrennungskraftmaschinen in PKW Anwendungen Powder Metal Compound Gears for Optimizing NVH …”

doi.org/10.51202/9783186802125

VDI Wissensforum GmbH - Dritev – Drivetrain for Vehicles 2020

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain for Vehicles 2020

Series: VDI-Berichte

Volume 2373 2020

Results in this title

D. Evenschor, P. Tenberge, M. Wolkerstorfer Package-optimized configuration of transmission elements for automated design concepts – Design concept generation based on results of transmission synthesis

„… cylinders. Shifting elements are shown in brown, gear-stages in blue, shafts in red, and bearings in …” „… time. A single specification of gear element ratios, transmission element load, and an available …” „… placement VDI-Berichte Nr. 2373, 2020 417 of gear box elements is presented. Its foundation is the …”

P. Ramet Dedicated hybrid transmissions (DHT) by PUNCH Powerglide – Innovative concepts for optimized DHT in terms of efficiency, cost and packaging

„… connected to the ring gear, and the combustion engine to the sun gear. For a simple planetary gearset …” „… electric and mechanical states using a limited number of gears and dog clutches to maximize efficiency …” „… solution with four mechanical gear states (ICE) and one electric gear state is sufficient to meet the …”

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

„… sensors and high-power actuators are required to introduce shifts between gears that are not objectionable …” „… the MMCM can always be used if shifting to next gear involves a friction clutch. By simply enabling …” „… an acceleration is detected and the shift into second gear becomes most likely. As soon as the shift …”

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

„… gear of the second gearset. The planet carrier of this second gearset sits on shaft 2, i.e. the output …” „… operate at very high speeds. Two of such motors can cooperate through a planetary gears system in a …” „… ratios of 32 (25) are needed. If such a gearbox would have gear wheels with e.g. 24 teeth on the …”

K. Kim New high efficiency CVT for middle class FWD vehicle

„… competiveness of efficiency, weight and overall length is the best in the same class CVT. The planetary gear …” „… weight. In this paper, the new planetary gear, new belt & pulley system, and newly optimized systems …” „… 359 Gear Span [UD/OD] 7.0 7.5 Weight [Wet, kg] 73 88 TORQUE-UP, MINIMIZING AND WEIGHT REDUCTION …”

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

„… machines and the transmission ratios of the two gears have been determined, the torques on the front and …” „… . Depending on the determined gear ratio, the torque applied to the electric machine results in a total wheel …” „… torque per axle. The diagram shows for the Taycan Turbo S which total wheel torque per axle and gear …”

D. Vietze, M. Hein, K. Stahl Method for a cloud based remaining-service-life-prediction for vehicle-gearboxes based on big-data-analysis and machine learning

„… Stahl, FZG – Gear Research Centre, Technical University of Munich 0. Zusammenfassung Die meisten …” „… service-life and state of health with as little effort as possible. Centerpiece of gearboxes are the gears. A …” „… with the dimensioning of gears according to the expected loads and the required service-life …”

D. Schöneberger, S. Rinderknecht, D. Reitmeier, A. Mertens Development of a transmission control for an innovative high-speed powertrain using motor-related control – Simulative approach to develop an angular position controlled engagement of dog clutches in ...

„… powertrain Speed2E and the hybrid powertrain DE-REX [2,3,4]. In these projects the gear engagement under …” „… could be achieved for gear changes with dog clutches with the aid of an angular position control. In …” „… potential of a gear change with angular position control, most components of the Speed4E powertrain were …”

M. Deiml High speed electric drive system – A solution for the next generation E-cars

„… parameters for high speed helical gears. Splash lubrication cannot be used if the pitch line velocity …” „… must be implemented for proper cooling and lubrication of gears and bearings. The advantage of the …” „… parameters are listed below. Only the gear design and the position of the lubricant’s nozzle will be …”

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

„… and transmission by removal of engine turbocharging, drive off elements, mechanical gear …” „… synchronization and the reverse gear. The synergies of electrification are used to fulfill the drivability …” „… torque sources were arranged around the 4-gear automated manual transmission as shown in Figure 1. A …”

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

„… revolution (25000 RPM) and high power density (up to 81KW) electric motor, a gear reduction stage (first …” „… stage cylindrical and a second planetary gear set) and an innovative linear electromagnetic actuator …” „… – Machines and gear ratio sizing 6 Disconnect system overview 6.1 Disconnect system: EMA (Electro …”

K. Sakai, T. Kishimoto, T. Kobayashi, T. Maekawa, T. Shinohara, M. Ogawa Development of the new chain CVT for middle capacity

„… : Breakdown for transmission power loss (80km/h road load) 2.2 Dynamic Quality Improvement Reduction gear …” „… ( previous 7-speed). In terms of NV performance, the vanetype oil pump and the optimized gear specification …” „… . Reduction of Oil Pump Noise Vane type oil pump was adopted instead of internal gear type in the previous …”

L. Wittmann, M. Wein, M. Wolf Consistently quattro

„… differential, which was soon complemented by the asymmetric-distribution crown gear differential. Having …” „… models. A bevel gear differential distributed the forces evenly between the front and rear axle. On …” „… . Its name “Torsen” is made up of the words “torque” and “sensing”. Specially meshed worm gears inside …”

S. Demmerer Next generation electric drives

„… first gear ratio to increase acceleration, and/or the gradeability. Especially with a trailer, this can …” „… be an advantage. VDI-Berichte Nr. 2373, 202066 With a lower second gear ratio, top speed can be …” „… . Fig. 3: Higher first gear ratio and lower second gear ratio spreads the usage of an e-motor …”

D. Kieninger, J. Hemsen, G. Witham The highly integrated ModulED drive module – Holistic concept design

„… planetary gear set (Ravigneaux gear set) and gallium nitride (GaN) power electronics with winding …” „… this project, numerous combinations of cylindrical gears and planetary gear sets have been …” „… Ravigneaux gear set, followed by a cylindrical gear reduction stage. The cooling subsystems of the motor …”

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

„… of the modular DHT platform. An investigation of a suitable gear structure with the IAV …” „… power flow in the first speed for a low mechanical effort and a short gear set with only 3 gear set …” „… and is connected to the hollow input shaft with the second and fourth gear on it. The overall spread …”

P. Ramminger, R. Jäger Evolution of the drivetrain and high voltage system in the new Corsa-e

„… this synergy: The powertrain plant produces an e-Powertrain assembly consisting of Reduction gear …” „… compressor Reduction Gear (opposite side) VDI-Berichte Nr. 2373, 2020 181 Table 1: Main differences …” „… ) Buy Reduction gear (RG) Make. Design with side e-Motor, parts partially from MT machinery , c/o …”

P. Lück, K. Bennewitz, J. Tousen, J. Peter The front-axle drive of the MEB – Volkswagen expands the e-drive portfolio

„… single-speed transmission reduces the speed of the electric machine for driving the wheels. The gear set …” „… ) of the electric machine are converted by the single-speed transmission. The overall gear ratio is …” „… achieved with a two-step spur-gear system via an intermediate shaft. The output is ultimately coaxial as a …”

M. Saborío, O. Sarmiento, C. Böhm High efficiency electric transmission oil pump – Transmission hydraulic efficiency improvement through hybridization

„… efficiency of the components (pumps, electric motors, gear trains). The analysis showed also that the …” „… outer ring of the pump is driven by an electric motor through a gear set. The ratio between the …” „… transmission: the gear ratios for both rotational axes, the pump displacement, the motor size and the …”

G. Gardner 10R80 – Cost efficient modular hybrid transmission (MHT)

„… drive applications, the lack of a mechanically connected reverse gear is an inhibitor to using these …” „… gear for towing applications, and package into existing rear wheel drive architectures. In order to …”

F. Völkel, M. Tietz, A. Schamin, S. Giehl Rolling into the future – Bearing solutions for electric mobility

„… density to be increased while reducing costs at the same time. Using an electric axle with spur gear …” „… via the gear and/or a parking lock gear. A specific problem that additionally occurs on the rotor and …” „… the sensor bearing, an increased level of precision and robustness is achieved. Due to the gear …”

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

„… , number of gears & transmission ratio - Motor type and layout, peak and nominal torque, max speed …” „… , helical gears, offset design VDI-Berichte Nr. 2373, 2020 35 A more detailed description of the DSD ePOP …” „… current or smaller/less dies. Transmission The basic transmission layout with 2 step helical gear …”

H. Gürbüz, S. Ott, A. Sutschet, J. Kern Highly efficient clutch system for multispeed BEV

„… gear changes. Today's powershifting clutches are not suitable due to the greatly increased differential …” „… that a shiftable transmission (2-3 gears) can increase the overall efficiency and power density of the …” „… the clutch. Due to the lower number of gears and higher transmission spread, the maximum differential …”

A. Esser, T. Eichenlaub, S. Rinderknecht Real-driving-based comparison of the eco-impact of powertrain concepts using a data-driven optimization environment

„… the transmission system in Gear ratio of the transmission speeds to iEM,Hybrid Relative ratio of …” „… vehicles, one with a fixed gear ratio (BEV-1) and one with a 2-speed transmission (BEV-2), fuel cell …” „… Conventional vehicle with CNG engine (1,0,0,1,0,0,0) BEV BEV-1 Battery electric vehicle with fixed gear ratio …”

G. Gardner Ford MACH-E Primary Electric Drive Unit

„… lubrication and cooling to the mechanical gear box components and cooling ot the motor assembly. To provide …”

Titelei/Inhaltsverzeichnis

„… � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �403 D. Vietze, M. Hein, K. Stahl, FZG – Gear Research Centre, Technical University of Munich …”

C. A. Spangler Borg Warner’s P1 and P2 hybrid drive modules – Modular kit for P1 and P2 hybrids

„… solenoids, gear actuation control pressure and flow solenoids and flow control cooling and lubrication …”

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...

„… concept, defining which gears to choose, depending on the initial and desired gear. VDI-Berichte Nr …”

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