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Viewing 1 to 30 of 5589
2017-04-04
Event
This session deals with the analytical and experimental studies of vehicle electric drive vehicles or any non-conventional vehicle concepts that stretch the vehicle dynamics/mobility performance using intelligent technologies such as in-wheel motors, torque-vectoring controls, multi-wheel steer-by-wire, etc.
2017-04-04
Event
Powertrain Electronics play a key role in meeting today's complex emissions and performance requirements, on-board diagnostics, legislated regulations, and product flexibility. This session explores the challenges and future prospects for powertrain controls, including on-board diagnostics, integration with transmissions, flash programming, service, software design and development, unit and system test, and electronics architecture today and in the future.
2017-04-04
Event
In the industry there is continuing work on understanding the interaction of lubricating fluids with driveline hardware and on improving the fluids used in these applications. In this session are presented a variety of papers dealing with different applications where the interaction of driveline fluids with equipment is important.
2017-04-04
Event
This session includes papers on the full array of transmission and driveline related components.
2017-04-04
Event
This session covers transmission and driveline modeling, including topics related to transmission hardware, software, and system integration.
2017-04-04
Event
This Session includes papers on torque converter, launch devices and modeling.
2017-04-04
Event
This session addresses transmission noise, vibration, rattle issues and design solutions.
2017-04-04
Event
This session covers transmission and driveline controls. Session will cover topics related to controls hardware, controls software, and controls integration.
2017-04-04
Event
This Session includes papers on IVT/CVT systems and related topics.
2017-04-04
Event
This session deals with the automotive transmissions of different types. It includes development of new transmission concepts, transmission enhancements and the advancement of the state of the art of transmission system design & integration with the objective of improving the transmission efficiency, NVH, durability and shift pleaseability.
2016-11-30
Event
2016-11-16 ...
  • November 16-18, 2016 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Starting with a look at the transmission's primary function -- to couple the engine to the driveline and provide torque ratios between the two -- this updated and expanded seminar covers the latest transmission systems designed to achieve the most efficient engine operation. Current designs, the components and sub-systems used, their functional modes, how they operate, and the inter-relationships will be discussed. A manual transmission display will be used to explain ratios and how they function within the driveline.
2016-11-08
Technical Paper
2016-32-0021
Stephen Gurchinoff
Thermoplastic bearing materials are being used in automotive transmission architectures where higher pressures and velocities are driving innovation. The benefits thermoplastics offer are high PV capable materials suitable to reduce NVH, increase design freedom while reducing design space, thermal insulation, reduce coefficient of friction, and improve wear resistance when compared to needle bearings. Expanding on the success in automotive may allow for these types of materials to be evaluated in marine lower units, CVT’s, pumps, and other small engine applications
2016-11-08
Journal Article
2016-32-0036
Takamori Shirasuna, Ryoh Hatakeyama, Yukio Sakai
In recent years, the need is growing for a fuel efficiency enhancement of motorcycles equipped with Continuously Variable Transmissions (CVT), of which the vehicle sales volume is rapidly increasing in developing countries. To develop a vehicle with excellent fuel efficiency, a precise estimation of fuel economy is required at the beginning stage of a vehicle development. One of the indices that are used for evaluation of fuel economy of a vehicle is fuel economy to a predetermined test mode of driving (mode fuel consumption). One of the parameters that plays an important role for the mode fuel consumption calculations is pulley ratio of CVT. In rubber belt CVTs for motorcycles, their pulley ratio varies at every moment depending on the balance between the traveling resistance and thrust force applied to the sidewall of the belt. The state of this pulley ratio variation differs among vehicles and/or among CVT specifications.
2016-11-08
Journal Article
2016-32-0096
Patrick Pertl, Michael Lang, Stephan Schmidt, Roland Kirchberger
The enhancement of efficiency will play a more and more important role in the development of future (small) internal combustion engines. In recent years, the Atkinson (or Extended Expansion) cycle realized over the drive train attracted increasing attention. Several OEMs have been doing investigations on this efficiency-increasing principle in the whole range from small engines up to automotive engines up to now. In prior publications, the authors outlined the remarkable efficiency potentials of an Extended Expansion (EE) cycle. However, for an internal combustion engine, a smooth running performance as well as low vibrations and noise emissions are relevant aspects. This is especially true for an Extended Expansion engine realized over the drive train. Therefore, design measures concerning friction and NVH need to be taken to enable possible series production status. Basically, these measures strongly depend on the reduction of the free mass forces and moments.
2016-11-02
Event
2016-10-26
Event
This session deals with papers on automotive transmissions of different types, their enhancements and controls.
2016-10-26
Event
The EcoCAR 3 Advanced Vehicle Technology Competition, sponsored by General Motors and the U.S. Department of Energy, tasks university teams with designing, implementing and refining advanced technology powertrains into a conventional Chevrolet Camaro. This session presents yearly results from teams in the competition, highlighting the entire EcoCAR vehicle development process and team accomplishments.
2016-10-25
Event
This session sets out to reflect the recent advances on the research, development and practices of Powertrain NVH treatment. The technical papers are of interest to powertrain system designers, testing specialists, NVH experts, and other individuals who evaluate and develop technologies to control powertrain NVH. The coverage includes: engine, engine subsystem and components noise and vibration; powertrain systems noise measurement and instrumentation; powertrain systems noise analysis.
2016-10-24
Event
In the industry there is continuing work on understanding the interaction of lubricating fluids with driveline hardware and on improving the fluids used in these applications. In this session are presented a variety of papers dealing with different applications where the interaction of driveline fluids with equipment is important.
2016-10-17
Journal Article
2016-01-2204
Takafumi Mori, Masanori Suemitsu, Nobuharu Umamori, Takehisa Sato, Satoshi Ogano, Kenji Ueno, Oji Kuno, Kotaro Hiraga, Kazuhiko Yuasa, Shinichiro Shibata, Shinichiro Ishikawa
One effective and easy way to improve fuel economy for automobiles is to decrease viscosity of lubricants, as it brings less churning loss. However, this option creates a higher potential for thinner oil film, which could damage the mechanical parts. This paper describes a new low-viscosity gear oil technology which was successfully developed to improve wear at tapered-roller bearings in differential gear units, whereas achieving higher fuel economy performance. As for tapered-roller bearings in differential gear units protected by gear oils, one major damage is supposed to cause wear at large end face of rollers and the counterpart, so-called bearing bottom wear. In order to understand the wear mechanism, wear at rolling contact surface of rollers and the counterparts, so-called bearing side wear was additionally observed to confirm the wear impact on tapered-roller bearing.
2016-10-17
Journal Article
2016-01-2205
Chris McFadden, Kevin Hughes, Lydia Raser, Timothy Newcomb
Hybrid drivetrain hardware combines an electric motor and a transmission, gear box, or hydraulic unit. With many hybrid electric vehicle (HEV) hardware designs the transmission fluid is in contact with the electric motor, and so some OEMs and tier suppliers have concerns about the electrical properties of automatic transmission fluids (ATFs). Lubrizol has conducted a fundamental research project to better understand the electrical conductivity of ATFs. In this paper we will present conductivity data as a function of temperature for a range of commercially available lubricants, including engine oils and gear oils, in addition to ATFs. All fluids, regardless of type, had conductivities in the range of 1E-8 to 1E-10 S/cm at 100oC and as such are good insulators with the ability to dissipate static charge. Next we will deconstruct one ATF to show the relative impact of the various classes of lubricant additives.
Viewing 1 to 30 of 5589

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