电动汽车起步加速控制策略仿真

Control Strategy Simulation of Electric Vehicle for Starting and Acceleration

针对电动汽车在坡道起步的负车速现象和加速性能疲软问题,基于电机的调速特性制订了纯电动车辆的起步加速控制策略。提出了车辆坡道起步的识别方法,分析并制订了符合驾驶员上下坡及平地起步操作意图的电动汽车加速补偿控制策略。仿真结果表明,该策略可以满足电动汽车起步时平顺性要求,并改善了车辆的加速特性。

Aiming at the enfeeble acceleration and incline to slipping down while in the starting process, a kind of control strategy for electronic vehicle is put forward based on the regulating charac- teristics of drive motor. In the process of simulation, a method serve to ramp recognition and an elec- tric vehicle accelerative compensation control strategy accord with operating intentions of the driver on the downhill and the ground started is established. The results show that what the proposed method can not only meet the smooth requirement of starting process, but also improve the acceleration of this automobile.