Title: Modelling and simulation study on application of sliding-mode control for an active anti-roll system in a passenger car with air suspension

Authors: Xizhao Li, Sifa Zheng, Jun Zhang, Keqiang Li

Addresses: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China. ' State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China. ' School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China. ' State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China

Abstract: A hydraulic and pneumatic suspension was introduced to reduce the vehicle roll angle during cornering. A two-track vehicle model was used to dynamically analysis the body motion of the vehicle. The modelling and simulation of the suspension are validated with experiment. The design of the sliding-mode controller is introduced. The simulation results of the suspension with different control methods were compared. The results show the performance of active suspension with sliding-mode control is superior to that of a passive system. The sliding-mode controller leads to lower power consumption and longer lifetime of valve actuators of the suspension.

Keywords: anti-roll system; air springs; SMC; sliding-mode control; active chassis; automotive dynamics; modelling; simulation; passenger cars; air suspension; vehicle suspension; vehicle design; hydraulics; pneumatics; vehicle roll angle; power consumption; valve actuators; actuator lifetime.

DOI: 10.1504/IJVD.2009.024961

International Journal of Vehicle Design, 2009 Vol.49 No.4, pp.318 - 337

Published online: 05 May 2009 *

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