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Torque Vectoring Driveline: SUV-based Demonstrator and Practical Actuation Technologies
Technical Paper
2005-01-0553
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
An SUV vehicle has been fitted with a novel torque vectoring driveline system capable of distributing drive torque in controllable proportion between the front and rear axles. The vehicle has been tested and is shown to function as anticipated with the ability to markedly alter the handling characteristics. The influence upon vehicle dynamics are reported as is the effectiveness of a yaw rate control scheme.
Beyond the demonstrator vehicle, designs are discussed for driveline devices for both longitudinal and lateral torque distribution using the same principles but product-orientated actuation with initial design calculations as proof-of-concept. Uniquely, arrangements are shown that achieve bi-directional torque bias capability from a single brake-type actuator.
Further actuation research is also described that relates to a novel combined clutch and valve arrangement that achieves closed loop torque feedback by mechanical means alone. A wider review applies novel magneto-rheological actuation methods for related dynamic control applied to a snowmobile.
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Authors
Topic
Citation
Wheals, J., "Torque Vectoring Driveline: SUV-based Demonstrator and Practical Actuation Technologies," SAE Technical Paper 2005-01-0553, 2005, https://doi.org/10.4271/2005-01-0553.Also In
SAE 2005 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V114-6; Published: 2006-02-01
Number: V114-6; Published: 2006-02-01
Transmissions and Drivelines Symposium - 4WD/AWD on CD-ROM from the SAE 2005 World Congress
Number: SP-1983CD; Published: 2005-04-11
Number: SP-1983CD; Published: 2005-04-11
References
- “Torque Vectoring AWD Driveline: Design, Simulation, Capabilities and Control” Wheals JC Baker H Ramsey K Turner W Ricardo Driveline & Transmission Systems UK
- “Motion Control for an Automotive Vehicle with Independent 4-Wheel Traction” Li W. Jones R.P. Chu Z.W. Department of Engineering, University of Warwick UK
- Motoyama, S. Uki H. et al. 1993 “Effect of Traction Force Distribution on Vehicle Dynamics” Vehicle System Dynamics 22 455 464
- 26 Aug 2004 “On-demand coupling for part-time AWD and Variable Torque Bias Device” Wheals JC Ricardo plc
- “Synthesis and Properties of magneto-rheological fluids” Genc S. University of Pittsburgh
- 08 Oct 2003 “Improved magneto-rheological Couplings with reduced drag losses.” Ricardo plc
- 16 Jun 2004 “Further Improvements in magneto-rheological Couplings” Ricardo plc
- “Mechanical Analysis and Design” Burr, A.H. 1981 0-444-00324-X
- 07 Sep 2004 “Actuation Systems and Mechanisms” Wheals, J. Ramsay, K. Turner, A. Ricardo plc
- 13 May 2003 “Torque Control Clutch (VTRC)” Barnes, Robert J Mepham, Shaun E. Ricardo plc