Coordinated active rear steering and variable torque distribution control for vehicle stability enhancement

• Autorzy: He Junjie , Crolla D.A. , Levesley M.C. , Manning W.J.
• Języki publikacji: EN

Abstrakty

EN

This paper investigates the coordination of Active Rear Steering (ARS) and Variable Torque Distribution (VTD) control to improve the overall vehicle stability and controllability, especially under extreme driving situations. Both ARS and VTD are able to influence the vehicle lateral dynamics to some extent within different effective regimes. The steerability and stability controller, ARS, is mainly designed to tune the vehicle handling at low to mid-range lateral acceleration level; while the stability controller, VTD, uses the differential driving torques between left and right driving wheels to produce a relatively large stabilising yaw moment when the vehicle states (sideslip angle and sideslip angle velocity) exceed the predefined stable region. The effect of the simultaneous use of ARS and VTD on the vehicle stability is studied through an open loop limit handling simulation test based on a eight degrees of freedom vehicle model. In addition, the adaptiveness of the proposed control system to the road surface friction variation is investigated as well. Computer simulation results confirm both the overall improvements in vehicle stability and the effectiveness of the proposed combined control system.

Słowa kluczowe

EN

steering; control theory; torque control; degrees of freedom (mechanics); torque; friction; surface phenomena; vehicles; force control; computer simulation; distributed parameter control systems

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems Science
• Rocznik: 2003
• Tom: Vol. 29, nr 1
• Strony: 119--133
• Opis fizyczny: Bibliogr. 11 poz.,

Twórcy

autor

He Junjie

• School of Mechanical Engineering, University of Leeds, Leeds, United Kingdom

autor

Crolla D.A.

• School of Mechanical Engineering, University of Leeds, Leeds, United Kingdom

autor

Levesley M.C.

• School of Mechanical Engineering, University of Leeds, Leeds, United Kingdom

autor

Manning W.J.

• School of Mechanical Engineering, University of Leeds, Leeds, United Kingdom

Bibliografia

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• [5] Wakamatsu K. et al.. Adaptive yaw rate feedback 4WS with friction coefficient estimator between tire and road surface, Proc. of AVEC'96, 1996.
• [6] Abe M. et al., A direct yaw moment control for improving limit performance of vehicle handling - comparison and cooperation with 4WS, Vehicle System Dynamics Supplement, 25, 1996, 3-23.
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• [10] Smakman H.T., Functional integration of slip control with active suspension for improved lateral vehicle dynamics, PhD thesis, Delft University of Technology, the Netherlands, 2000.
• [11] Selby M., Manning W. J., Brown M. D., Crolla D. A., A comparison of the relative benefits of active front steering and active rear steering when coordinated with direct yaw moment control, Proc. of ASME Int. Mechanical Engineering Congress and Exposition, New York, 2001.