Affiliations: [a] Fujian Key Laboratory of Automotive Electronics and Electric Drive, Fujian University of Technology, Fuzhou, Fujian, China | [b] Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, ON, Canada | [c] Collaborative Innovation Center for R&D of Coach and Special Vehicle, Xiamen University of Technology, Xiamen, Fujian, China | [d] State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, Jilin, China
Correspondence:
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Corresponding authors: Yunfei Zha and Fangwu Ma, Fujian Key Laboratory of Automotive Electronics and Electric Drive, Fujian University of Technology, Fuzhou, Fujian, China. E-mail: fei244@163.comormikema@jlu.edu.cn.
Abstract: To improve the acceleration performance and stability of the four-wheel independent drive (4WID) electric vehicle on low-adhesion road, a fuzzy control that doesn’t depend on accurate vehicle models is proposed. Taking the driving torque of one side wheel as a reference the slip rate is controlled by controlling the torque errors between the left and right wheels to a certain range. Carsim-Simulink co-simulation is used to analyze the acceleration stability of 4WID electric vehicle on low-adhesion road and μ-split road. The simulation results show that the wheel slip rate can be controlled within a reasonable range through proposed method, and the stability and safety of the vehicle can be effectively improved on the basis of ensuring the power performance of the vehicle.
