吉林大学学报(工学版) ›› 2004, Vol. ›› Issue (4): 547-553.

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Simulation of 4-wheel independent driving electric vehicle dynamics control system

JIN Liqiang, WANG Qingnian, SONG Chuanxue   

  1. College of Automotive Engineering, Jilin University, Changchun 130022, China
  • Received:2004-05-04 Online:2004-10-01

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Abstract: The merits of 4-wheel independent driving(4WID) for vehicles and the possibility of implementation of this driving system in electric vehicles(VE) were discussed. The differences of the vehicle dynamics control(VDC) systems between internal combustion engine vehicles and VE were described, and a novel VDC approach to 4WID VE has been brought forward. The approach combines the feedforward compensation for the front wheel steering angle and vehicle speed and the feedback compensation based on the side slip angle and gas rate deflection to control the vehicle movement state. The factors of feedforward and feedback compensation were determined by the optimal control technique. An integrated EV mathematical model was thus built, and a simulation model generated by MATLAB/Simulink software was used to perform a simulation study. Results show the developed VDC system ensure a satisfactory vehicle dynamic performance under different road and driving conditions.

Key words: automotive engineering, electric vehicle, four motorized wheels, vehicle dynamics control, feedforward and feedback control compensation

CLC Number: 

  • U469.72
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