Thirdly, the paper presents research work on EV speed control strategy, which involves in-wheel motor PWM modulation, EV open-loop control and close-loop speed control.

• 再次,本文对四电动轮独立驱动电动车的速度控制方案进行了研究,内容包括轮毂电机PWM调速、电动车开环控制及速度闭环控制。