Study on Identification of Adhesion State and Stability Control Strategy of Electric Drive Wheel on Complex Dynamic Road

doi:10.3901/JME.2019.22.113

Abstract

Abstract: The identification and control of tire-road adhesion stability under complex dynamic road condition is very important to the safe driving of electric vehicle. The dynamic behavior of the force transfer factor in the process of road surface switching from the perspective of driving-adhesion transfer characteristics is analyzed, a method to identify the adhesion state based on the force transfer factor is proposed, and the vehicle stability control strategy after road surface switching is analyzed and discussed. The validity and effectiveness of the force transfer factor estimation method based on electrical parameters are verified by CarSim combined simulation. The change of road adhesion can be detected by force transfer factor is shown in the results. The reduced torque stability control strategy is adopted to improve the vehicle adhesion stability when the road adhesion characteristics change. The research results are of great significance for improving the safety of electric vehicles on complex road.

Key words: adhesion state, electrical parameters, complex dynamic road, force transfer factor, stability control

CLC Number:

TG156

XU Guoqing, WANG Yuqin, YANG Ying, XU Kun. Study on Identification of Adhesion State and Stability Control Strategy of Electric Drive Wheel on Complex Dynamic Road[J]. Journal of Mechanical Engineering, 2019, 55(22): 113-122.

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