摘  要：通过对电动汽车运行特性的分析，对双凸极电机的结构和原理分析，提出对电机改进的一系列思路，并试制了三相12/8极和二相8/12极变磁阻式轮毂电机，并对其结构和电动、发电和电磁制动功能原理和过程进行了描述。新型电机的使用可大大简化电动车辆的机械结构，提高其性价比，对当今推广电动汽车和节能减排起到较好的效果。该电机已申请专利。
关键词：发电回馈；电磁制动；轮毂电机；凸极齿宽

Abstract:First analyzed the car operation characteristic under various situations.Then through analizing the structural principle of variable reluctance doubly salient motor,proposed a series of improved thinkings and principles of electrical machinery.Througy making the motor model,and numerous improve the design,imitate the test run repeatedly,finally design two kinds of electrical machineries that can be implemented:three phase 12/18 pole and two phase 8/12 pole variable reluctance inwheel motor.Then described the concrete structure of these two motor,the principle and the process of the three functions which were electromotion,power generating repayment and electromagnetic brake when they were operating.The detrusion of this motor can simplify the mechanical structure of the electric automobile greatly,improve its cost performance,and have made a very good effect to popularizing the electric automobile and energy-saving technologies.For this reason has already patented to the invetion and creation of this electrical machinery.
Key Words: Power generating feedback;Electromagnetic brake;In-wheel motor;Salient pole facewidth