Based on the overview of driving motor and its control technology about electric vehicles(Evs),two strategies of vector control are brought forward :one is the efficiency optimization control (EOC);

• 通过对电动车驱动系统及其控制技术的综述，引出目前基于电动车感应电机矢量控制方法的两种控制策略：提高效率的最大效率控制与简化系统、降低成本的无速度传感器矢量控制。