基于变比例因子模糊控制的电动汽车防滑驱动

Electric Car Torque Driving Based on Variable Scaling Factor Fuzzy Control

电动汽车在行驶中会出现驱动轮过度滑转现象,驱动轮过度滑转大大降低了汽车的驱动性能。本文采用传统的路面识别的方法 ,识别出不同路况下的最优滑转率,然后通过变比例因子模糊控制器将实际滑转率控制在最优滑转率附近,保证了电动汽车在不同路况下行驶都可以获得较好的驱动防滑控制效果。依据车辆动力学模型进行仿真分析,仿真结果表明变比例因子模糊控制可以将实际滑转率控制在最优滑转率附近达到提高驱动效能的目的。

Excessive driving wheel slip of electric cars greatly reduces the car driving performance. This article adopts the method of traditional road recognition to identify the optimal slip ratio under different road conditions. Through the variable scaling factor fuzzy controller to control the actual slip ratio near optimal to ensure that the electric car driving under different road conditions can get a good driving torque control effect. Based on vehicle dynamics model for simulation analysis and its results show that the scaling factor fuzzy control can control the actual slip ratio near the optimal to achieve the purpose of increasing the efficiency of driving.