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VDI Wissensforum GmbH - Dritev – Drivetrain For Vehicles 2019

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VDI Wissensforum GmbH (ed.)

Dritev – Drivetrain For Vehicles 2019

Series: VDI-Berichte

Volume 2354 2019

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

„… “Highspeed Clutch” Miba develops and manufactures the friction pairs and sliding coatings required for …” „… transmission with 2 friction clutches and an electric machine with 134Nm nominal torque and 200kW power output …” „… clutches for BEV The first step is to compensate axial force losses caused by spline friction. To this …”

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

„… synchronization process, a cone clutch with up to three friction surfaces is used to accelerate or decelerate …” „… failed because the values of coefficient of friction at the beginning of the clutch engagement were too …” „… During Engaging of Wet Friction Paper. SAE Technical Paper Series. SAE Technical Paper Series. SAE …”

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

„… Triple wet clutch module and actuation system, shift cylinders and park lock for modern Hybrid …” „… Transmissions Architecture and technical description of a triple wet clutch unit and the related active and …” „… -Hybridarchitekturen haben integrierte Lösungen von Triple Wet Clutches mit effizienten Aktuierungssystemen bei …”

Titelei/Inhaltsverzeichnis

„… Munich Triple wet clutch module and actuation system, shift cylinders and park lock for modern hybrid …” „… transmissions – Architecture and technical description of a triple wet clutch unit and the related active and …” „… Artificial intelligence in transmission control – Clutch engagement with reinforcement learning …”

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

„… adapting the dual clutch. This is achieved by varying the number of friction plates and the use of …” „… friction plates. [7] VDI-Berichte Nr. 2354, 201984 Fig. 4: Dual clutch unit and mechanical pump drive …” „… Maximum speed 7,300 rpm Touchpoint Clutch 1 ~ 2.0 bar Clutch 2 ~ 2.3 bar Gain 50 Nm / bar Friction …”

A. Moser, F. Brezger Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic actuation systems

„… Heidelberg 2013. [Mos11] Moser, A.; Saxena, V.; Schaefer, M.; Ritschel, M.: „ Insight on Wet Clutch …” „… Efficiency improvements in transmissions using new latching technologies in clutch & hydraulic …” „… of clutch and brake systems in passenger car drivetrains are outlined and their efforts discussed as …”

G. Hellenbroich Low-cost DCT for emerging markets incl. 48 V hybridization

„… both the conventional and VDI-Berichte Nr. 2354, 2019 67 hybrid variant is between 330 mm (wet clutch …” „… hybrid variant is between 330 mm (wet clutch version) and 355 mm (dry clutch version), making it easily …” „… Doppelkupplungsgetriebe dar. Abstract Following manual transmissions and AMTs, dual clutch transmissions (DCT) are …”

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...

„… encountered by applying powershift elements like friction clutches (e.g. dual clutches) which in term are …” „… by installing two EMs with half power instead of one powerful EM. Instead of using friction clutches …” „… . Compared to powershiftable friction clutches, dog clutches are cheaper and cause less power losses in …”

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

„… power train this seven speed wet clutch gearbox is the demonstration of the expertise of Great Wall …” „… . • In-house developed 7 speed Dual Clutch Transmission (as opposed to the 6 speed DCT used in first …” „… architecture (ex P2 Hybrids) offers significant advantages. By offering low mechanical friction, higher …”

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

„… 1.714 0.952 15.04 15.770 65.0 60.8 346 356 147 mm ← 1.000 Through low ratio Weight (wet) Overall length …” „… mentioned above. In order to reduce the diameter of the clutch system of the forward/reverse switchover …” „… efficiency of the new CVT was improved by adopting JATCO’s latest low-friction belt. Fig. 9 …”

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

„… such as the start-up controller for automatic transmissions with friction clutch as start-up element …” „… DCTs and AMTs, this functionality must be realized with an actuated dry or wet clutch. Lowspeed …” „… Artificial Intelligence in Transmission Control Clutch Engagement with Reinforcement Learning …”

doi.org/10.51202/9783181023549

VDI-Wissensforum GmbH - DRITEV – Drivetrain for Vehicles 2021

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VDI-Wissensforum GmbH (ed.)

DRITEV – Drivetrain for Vehicles 2021

Series: VDI-Berichte

Volume 2381 2021

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

„… advandages of the dry friction clutch compared to wet clutch type, in relation to the customer requirement …” „… friction clutch is transferring the torque on the second gear and is combined with a one way clutch on the …” „… driving, as the component would free wheel during this operation. The friction clutch is operating in …”

S. Dussinger, T. Wiedemann, B. Harter, B. Wiedenmann Simulation of induced axial forces on planet gear bearings at example of ZF’s 8-speed automatic transmission S. 469-486

„… aim of improving energy efficiency and reducing CO2 emissions, friction losses within driveline …” „… friction losses. The investigation is carried out using finite element simulations. Important influencing …” „… such as gear assemblies increases steadily. Friction effects in planetary gear sets from ZF’s 8 …”

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

„… inexpensive compared with friction clutches. The 2-Speed AMT gearbox is suitable for SUVs, sports cars …” „… Coaxial / Layshaft or planetary / Single-speed or multi-speed / Wet or dry sump / designed to incorporate …” „… uses e-synchronization and its patented dog clutch system to achieve short shift times and is …”

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 …”

doi.org/10.51202/9783181023815

VDI Wissensforum GmbH - Schwingungen 2019

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VDI Wissensforum GmbH (ed.)

Schwingungen 2019

Series: VDI-Berichte

Volume 2366 2017

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A. Bischofberger, S. Ott, A. Albers Die nasslaufende Kupplung als Stellglied zur Schwingungsreduzierung im Antriebsstrang – Einflüsse eines veränderten Tribosystems S. 307-320

„… eines veränderten Tribosystems Wet running clutch as actuator for reduction of oscillation in the …” „… improve the decoupling behavior of the wet running clutch system. This paper presents investigations on …” „… . Ninomiya, T.: Analysis of the Friction Surface on Clutch Judder. Technical Notes (1992), S. 82–84 …”

doi.org/10.51202/9783181023662

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2017

Series: VDI-Berichte

Volume 2294 2017

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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

„… dry fiction clutch. The proposed system allows a seamless shifting between any two speeds in an …” „… inverse AMT with the dry clutch located at the rear of the transmissions is introduced to obtain a …” „… desired dynamic performance and efficiency for the EV, this paper presents a novel seamless dry-friction …”

doi.org/10.51202/9783181022948

VDI Wissensforum GmbH - Nutzfahrzeuge 2017 – Commercial Vehicles 2017

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VDI Wissensforum GmbH (ed.)

Nutzfahrzeuge 2017 – Commercial Vehicles 2017

Series: VDI-Berichte

Volume 2298 2017

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F. Sauter, H. Mozer, B. Fessler, J. Glückler Development of an 8-speed Automatic Transmission for Medium-duty Trucks and Buses – Market analysis, selection, detailed definition and comparison of concepts and rollout of a segment-optimized tra... S. 197-208

„… Dual-clutch Basis DCTs with wet or dry dual clutches have gained popularity over the years primarily in the …” „… range with a spread of 10.1 as well as a wet dual clutch with hydraulic control. As a result, the …” „… on a smaller spread range than that which transmissions with friction clutch offer. This generated a …”

doi.org/10.51202/9783181022986

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