关键词: 模糊 PI 控制；整车控制器；道路坡度；驱动轮滑移率

Abstract: In this paper, a driving anti-skid simulation system is proposed for the effective realization of driving anti-skid function of rear-wheel driven micro electric steam. In this system, the vehicle controller (VCU) uses fuzzy PI algorithm to control the motor driving force output, and realizes the control of wheel slip/slip ratio. In the process of anti-skid control, the driving anti-skid effect will be affected when the vehicle goes uphill due to the change of road slope. For this reason, the system designs the slope torque compensator, which provides the corresponding torque compensation according to the different slope value. The simulation results show that the system can effectively control the slip rate of the driving wheel and Improve the driving power and stability of rear-wheel drive micro electric vehicle.

Key words: Fuzzy PI control; Vehicle control unit; Road slope; Wheel slip ratio