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VDI Wissensforum GmbH - Drivetrain for Vehicles 2016

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VDI Wissensforum GmbH (ed.)

Drivetrain for Vehicles 2016

Series: VDI-Berichte

Volume 2276 2016

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O. Eriguchi SUBARU CVT toward 2020 S. 3-16

„… Dynamic Quality Lower Speed Operation CVT Noise Reduction Cost Optimization Smaller / Lighter Parts …” „… Autonomous Drive with Comfort Artificial Step Shift Directness & Linearity for Enjoyment CVT has BOTH C yan M …” „… Introduction of SUBARU History of CVT Development Lineartronic® Overview …”

A. Albers, K. Bause, S. Ott, S. Reichert, M. Behrendt, U. Reichert applications Tribosystemic view of CVT in drive systems – Getting tribological mechanisms in CVT under control S. 905-918

„… Trib osy ste mic v ie w of CVT in driv e sy ste ms G e ttin g trib ol ogical me chan isms in …” „… CVT un de r con trol P rof . Dr.- Ing. Dr. h .c. A. Al b e rs, Dipl .- Ing. K . Bause , Dipl .- Ing …” „… for efficient CVT applications are generated. Besides regarding at the friction contact, it is …”

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

„… with the expansion of CVT.Our present annual production volume is about 4.7million units for CVT (in …” „… performance, AT had higher stiffness than CVT’s by 2013, but the recent less cylinder and LU at low speed …” „… The Trend and Future of Torque Converter for CVT Shinji Fujimoto, Nobuyoshi Shiomura, Keiji Sato …”

B. Pennings Recent material developments for further optimization of pushbelt CVT power density S. 897-904

„… Recent material developments for further optimization of pushbelt CVT power density Ir. PDEng …” „… of pushbelt Continuously Variable Transmissions (CVT) in automotive applications has seen a strong …” „… & torque, transmission size, ratio coverage, and durability. Enhanced power density of the pushbelt CVT …”

G. McIndoe, E. Taskiran CVT powerpath solutions using Variglide Continuously Variable Planetary for maximum fuel economy S. 921-930

„… CVT powerpath solutions using Variglide Continuously Variable Planetary for maximum fuel economy …” „… | 07:43:10 15 ● ● ● – – – – – – VariGlide 4 Mode Beltless CVT 4 Mode Beltless CVT Inertia C yan M agenta Y …”

A. Pigeard, T. van Dongen, L. Römers, S. Strauss Start/Stop Coasting and CVT – An effective, customer perceivable and attractive fuelsaving combination S. 805-816

„… Start/Stop Coasting and CVT An effective, customer perceivable and attractive fuel-saving …” „… ratio are decisive: Comfort is optimum with smaller engines in overdrive. CVT gains an advantage by …” „… durability because the clutch works as a fuse. Conclusion: There is a large potential for CVT applications …”

K. Kato Development of hydraulic control system for JATCO new wide-range CVT S. 847-858

„… D e v e l op me n t of hy draul ic con trol sy ste m f or J ATCO n e w wide - ran ge CVT K …”

J. W. E. Fuller, C. J. Gaskell High efficiency “full-toroidal” traction drive CVT; technology improvements and application to front wheel drive cars S. 941-944

„… Conference CVT in automotive applications Goodbye Friedrichshafen! See you 2017 in Bonn …”

C. Lauinger, A. Götz, B. Walter, M. Finsterbusch, E. Simon CVT-Hybrid – Low emission, high performance S. 827-846

L. Marquenie, T. T. G. Clephas, J. H. M. van Rooij Development of an improved electro-hydraulic CVT actuator S. 859-868

A. Yildiz, A. Piccininni, F. Bottiglione, G. Carbone Testin the CMM model of chain-CVT transmissions in steady-state and shifting conditions S. 817-826

J.-N. Mach, G. Poll Influence of surface structures on the operational behavior of continuously variable transmissions S. 919-920

„… Systems [1] [1] Drechsler, S, / Mach, N. (2014): CVT-Beschichtung II - Verbesserter Kraftschluss im …” „… real CVT and then were subjected to extensive short term performance measurements as well as to long …” „… clamping forces on the input and output side. In the second part of this work, simulations of CVT …”

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

„… , CVT-Getriebe und teilweise auch zukünftige 2-3 Gang Getriebe für Elektrofahrzeuge verfügen über eine …” „… numbers of gears of automated transmissions and Continuously Variable Transmissions (CVT) worldwide by …” „… 2020 according to [5] and our own survey. Fig. 1: Shares of transmissions of 3 to 10 gears and CVT …”

R. Hiraku Technologies need to have more Flexibility S. 757-766

„… be the powertrain system with the greatest flexibility. Apart from electric devices, CVT is a …” „… technology that should be recognized anew. CVT is relatively new technology and still have a promising …” „… potential to adapt to various needs. The latest CVT could achieve the top level transmission efficiency …”

G. Jacobs, F. Straßburger, C. Pelger Power split driveswith mechanical variators for small mobile machines S. 605-614

„… Arbeitsmaschinen. Um den Spreizungsbereich mechanischer CVT zu erweitern, können diese in leistungsverzweigenden …” „… Kostenab schätzung für eine Kleintraktoranwendung zeigt, dass mechanische CVT in Leistungsverzwei gung im …” „… Betriebsjahres amortisiert werden können. Ab stract Mechanical CVT transmissions feature a low noise level and …”

G. Hellenbroich, P. Janssen, I. Steinberg CVT in comparison to other transmission concepts – Fuel consumption in state-of-the-art B-class vehicles S. 767-776

C. Ott, S. Eisenhuth, F. Jonas, T. Hofmann New Generation of Hydraulic Control Modules with Integrated Pressure Sensors for Transmission Control S. 243-256

„… for example a pulley in a CVT. These differences in the hydraulic load are reflected in differences …” „… of a CVT where a precisely controlled pressure results in a more robust slip control and …” „… of operating the µHM completely on the maximum load pressure level has to be skipped for CVT …”

M. Graf, M. Brenninger, R. Heindl CVDT – Advanced Hydrostatic Power-Split Drivetrain – The Next Level in Tractor Transmission Technology S. 587-588

„… Technologiestufen eingeführt. Das CVDT stellt eine Weiterentwicklung stufenloser Getriebe (CVT) zum stufenlosen …” „… levels is introduced. A CVDT, a continuously variable drivetrain, incorporates more than only CVT …”

H.-D. Schneider, R. Rompelberg The Cone-Ring-Transmission will go into production! S. 931-940

„… ( K RG ) con ce p t f ciency of the G Comp arison to othe r CVT’ s Way to eries roduction F …” „… concept, efficiency and benefits versus other CVT s on the market will b e discu ssed and ongoing …”

Titelei/Inhaltsverzeichnis S. I-XVIII

„… International VDI Conference Transmissions in mobile machines International VDI Conference CVT in automotive …” „… 2016 Transmissions in mobile machines CVT in automotive applications Friedrichshafen, June 21 and 22 …”

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

„… . VDI-Berichte 2276, 2016 719 1. Introduction Continuously Variable Transmissions (CVT) enable to automatically …” „… set the engine operating point independent on the loads applied to the vehicle. Using a CVT, the …” „… transmissions with one input and one output 1 Figure 2.2 shows an electrically power-split CVT with one input …”

M. Ribaldone, F. Galli, S. Dominoni, S. Tremolada Development of an innovative suspension and traction system for compact tractor S. 743-756

„… , 2016 753 International VDI Conference CVT in automotive applications …”

Preface S. 1-2

„… from passenger vehicles transmissions there is a special focus on CVT in automotive applications and …”

S. A. Pahlovy, S. Faria Mahmud, M. Kubota, M. Ogawa, N. Takakura Improvement of transmission efficiency by reducing the drag torque in disengaged wet clutch – Development of a model for calculating drag torque or spin loss of disengaged wet clutch of transmission S. 879-896

„… analytical tool to calculate the drag torque of disengaged wet clutch as the reverse clutch of CVT. This …” „… 3. Model validation 3.1 CVT Reverse clutch 3.1.1Sample : Half waffle 2 pass 18 pressed in groove …” „… location of peak for grooved sample . The model can capture the drag torque characteristics of CVT reverse …”

A. Kooy, D. Eireiner, T. Krause, C. Herbers, B. Vögtle Torsional Damping Systems for all relevant Powertrains – Extending current Damping Technologies S. 257-270

„… clutch transmission), AT (automatic transmission), P2-Hybrid and CVT. For the shown damper concepts the …”

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

„… ratios are varied in the CVT- functionality with a small increment size around the determined gross …”

A. Teubert How to build better CVTs S. 791-804

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

„… CVTs Marktanteile gewinnen, während das Volumen der klassischen Wandlerautomatenauf hohem Niveau …” „… future. The percentage of automatic transmissions will grow at the global level, with DCTs and CVTs …” „… , the torque-converter automatic transmission and DCT offer advantages over CVTs. The strength of CVTs …”

doi.org/10.51202/9783181022764

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

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K. Kim New high efficiency CVT for middle class FWD vehicle S. I-271-I-284

„… CVT.(Fig. 5) According to In-Diff. distance, CF28 has two option to satisfy the mount-ability on various …” „… recent fuel efficiency regulations. VDI-Berichte Nr. 2373, 2020274 The front-wheel CVT(CF18), which is …” „… New high efficiency CVT for middle class FWD vehicle Senior Research engineer, Kwanghun, Kim …”

K. Sakai, T. Kishimoto, T. Kobayashi, T. Maekawa, T. Shinohara, M. Ogawa Development of the new chain CVT for middle capacity S. I-79-I-88

„… Development of the new chain CVT for middle capacity Kentaro Sakai, Takuya Kishimoto, Takahiro …” „… Abstract The newly developed chain CVT for middle capacity, which is characterized by compactness, higher …” „… dynamic quality with NVH and driving performance. The CVT has realized the target performance by variator …”

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

„… chain CVT for middle capacity …” „… , PUNCH Powerglide Strasbourg SAS, Strasbourg Cedex, France New high efficiency CVT for middle class FWD …”

G. Gardner 10R80 – Cost efficient modular hybrid transmission (MHT) S. I-285-I-288

„… platform that utilize power split eCVT technology to deliver hybridization. Larger vehicles that require …”

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

„… electronic continuously variable transmission (eCVT) with port fuel injection engine (PFI) reduces the …” „… (GDI, DCT, PSM) P4 PHEV (GDI, AT, IM, BSG) Power Split PHEV (MPI, eCVT, PSM, SG) Battery Elec. drive …”

C. A. Spangler Borg Warner’s P1 and P2 hybrid drive modules – Modular kit for P1 and P2 hybrids S. I-221-I-232

„… Voltage vehicle electrical systems; Compatible with A/T, DCT, CVT and DHT; Providing full …” „… overall powertrain length. For planetary automatic transmissions and CVTs, modules are being developed …”

M. Saborío, O. Sarmiento, C. Böhm High efficiency electric transmission oil pump – Transmission hydraulic efficiency improvement through hybridization S. I-149-I-158

„… hydraulic requirements of a transmission during a WLTC Class 3 cycle. A CVT application with high hydraulic …”

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

„… electric motor can either boost or presynchronize. An example of Powersplit (eCVT) was given in [Cam16 …”

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

„… possibly a larger amount of possible operating modes (e.g. serial or eCVT) and mode changes. Also …” „… ‘Backwards’ NCC (using flipped curves) DHT Dedicated Hybrid Transmission eCVT electrical Continuously …”

doi.org/10.51202/9783181023730

VDI Wissensforum GmbH - LAND.TECHNIK 2016

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VDI Wissensforum GmbH (ed.)

LAND.TECHNIK 2016

Series: VDI-Berichte

Volume 2273 2016

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B. Niemöller VarioDrive – CVT-Antriebe auf einem gezogenen Kartoffelroder S. 61-68

„… Stand der Technik 3.1 CVT-Antriebe Aufgrund der sehr positiven Eigenschaften haben CVT-Getriebe für …” „… VarioDrive – CVT-Antriebe auf einem gezogenen Kartoffelroder Dr.-Ing. Bernd Niemöller, Grimme …” „… Planetengetrieben, Kombinationen aus beidem, verschiedenen Hydrostaten, etc. innerhalb des CVT-Getriebes. Das …”

G. Polifke Hydrodamp – Hydraulischer Torsionsschwingungsdämpfer für Traktoren S. 69-76

„… CVT-Antriebssträngen betrieben, damit die Antriebsleistung optimal und fahrerunabhängig auf die Räder – gerade auch im …” „… stehen. Einsatzgebiete des Hydrodamp sind vornehmlich Fahrzeuge mit Powershift- oder CVT- Getrieben …”

B. Reick, V. Warth, M. Geimer, B. Bertsche Analyse eines beispielhaften elektrisch leistungsverzweigten Stufenlosgetriebes (ECVT) S. 35-42

„… Stufenlosgetriebe (Continuously Variable Transmission, CVT) bieten die Möglichkeit, die Motorbetriebspunkte auf der …” „… bewältigenden Aufgaben [3]. Aufgrund dieser Variabilität und dem daraus gewonnenen Nutzen sind CVTs in …” „… zunehmend elektrisch leistungsverzweigte CVTs, so genannte ECVTs, in den Fokus der Entwicklung. Durch eine …”

doi.org/10.51202/9783181022733

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

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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

„… . VDI-Berichte Nr. 2328, 201850 2 Basic Concept for On-demand CVT Actuators Today, all of the CVTs on the market …” „… ] Lauinger, C., Götz, A., Walter, B. Finsterbusch, M., Simon, E.: Dedicated CVT-Hybrid – Low Emission, High …” „… Future Schaeffler CVT Concepts with an Innovative Actuation System Dipl.-Ing. R. Stehr …”

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

„… is that CVT-based hybrid systems with a downstream e-machine architecture perform best on all KPI’s …” „… CVT: dedicated to hybrid solutions Setting the benchmark on all KPI’s G. van Spijk, A …” „… . Therefore both modular and completely new concepts are and will be introduced into the vehicle market. CVT …”

E. Schnur, S. Krieger, M. Brenninger Development of a CVT transaxle with differential steering for a tracked tractor around 300 kW S. III-35-III-36

„… Fahrkomfort und der Vielseitigkeit von CVT’s wurde von Graf [1] gezeigt, wie die Effizienz und dynamische …” „… CVT-Technologie auf höchstem Qualitätsniveau sogar innerhalb kurzer Entwicklungszeit in einem Raupenfahrzeug …” „… recent years. Furthermore the increasing number of CVT’s in agricultural machines is significant …”

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

„… , the world’s first mass-producible variable compression ratio engine. For the CVT combined with this …” „… with the engine control and CVT shifting control in various driving conditions such as for vehicle …” „… compression ratio, enabling the engine to deliver both high performance and high efficiency. The Jatco CVT8 …”

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

„… Lasten sowie der Fahrzeuggeschwindigkeit. Durch das CVT können die Leistungsfähigkeit, der Komfort und …” „… and speed. Thus a CVT can increase the tractor performance, comfort and efficiency fitted to the …” „… . An early and automated synthesis, calculation and evaluation of different CVT concepts plays an …”

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

„… CVT transmissions, as found in typical subcompact and compact cars, in the context of current …” „… transmissions (CVT). However, these preferences are subject to change, as the forecasts for 2027 demonstrate …” „… power, NVH, and drivability. For example, comparing a DCT to a CVT or AT says little if the DCT is …”

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

„… dual clutch transmission of a passenger car (DCT), e-CVT hybrid transmission of a passenger car …” „… (e-CVT) and 12-speed truck transmission (AT). 2. Reference transmissions The topologies of the …” „… speed manual transmission [3]; no. 2) 6 speed dual clutch transmission; no. 3) e-CVT hybrid …”

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

„… � � � � � � 33 A. Schmidt, H.-P. Fleischmann, AUDI AG, Ingolstadt f CVT Future Schaeffler CVT concepts with an …” „… . Willeke, LuK GmbH & Co. KG, Bühl CVT: dedicated to hybrid solutions – Setting the benchmark on all KPI’s …”

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

„… suitable for all kinds of transmissions, ranging from manual to automatic, CVT, double-clutch and recently …”

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

„… loss of engine braking when combined with an AT, CVT, or others. However, this disadvantage can be …”

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

„… (CVT) concepts show that the biggest benefit can be achieved by combining different drive technologies …”

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

„… , Industrial Engineer UAS, Executive MBA, HAFL, Zollikofen, Swiss Development of a CVT transaxle with …” „… Potentials of power-split CVTs for small mobile machines � � � � � � � � � � � � � 71 C …”

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

„… Potentiale mechanischer LVG für kleine mobile Maschinen Potentials of power-split CVTs for …” „… mobile Maschinen Potentials of power-split CVTs for small mobile machines Christian Pelger, M.Sc …” „… of power-split CVTs for small mobile machines Christian Pelg r, M.Sc., Univ.-Prof. Dr.-Ing. Georg …”

S. Prebeck, M. Hiemer Requirements for agricultural and construction machinery drivetrains derived from “autonomous driving” S. III-105-III-106

„… große Rolle im autonomen Fahren spielen, da CVTs hervorragend regel- und steuerbar sind. Nicht zu …”

doi.org/10.51202/9783181023280

VDI Wissensforum GmbH - Powertrain Systems in Mobile Machines 2022

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VDI Wissensforum GmbH (ed.)

Powertrain Systems in Mobile Machines 2022

Series: VDI-Berichte

Volume 2402 2022

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R. Himmelsbach, J. Ziegler, E. Nachbaur eCVT for Tractors – Experience report about potentials and challenges S. 223-232

„… Drag Losses [%]Vehicle Speed [kph]hCVT eCVTVDI-Berichte Nr. 2402, 2022230 Fig. 8: Simulated fuel efficiency improvement for eCVT …” „… eCVT for Tractors Experience report about potentials and challenges Dipl.-Ing. Raphael …” „… agricultural machinery. In the meantime, the hydraulic continuously variable trans-mission (CVT) became a …”

Titelei/Inhaltsverzeichnis S. I-X

„… Potentials of smart technologieseCVT for Tractors – Experience report about potentials and challenges …”

W. Breu, L. Reuter HELIOS – A hydrogen-electric operated tractor system S. 95-104

„… step, the CVT remains in the tractor (cf. Fig. 2). Fuel cell systems need a higher cooling performance …”

doi.org/10.51202/9783181024027

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