This paper introduces four drive systems of the electric vehicle:Dc motor, Ac induction motor, Permanent magnet motor and Switched reluctance motor, summarizes the advantages and disadvantages of each drive system, and expounds the development trend.% 介绍了电动汽车的四种驱动系统：直流电动机、交流感应电机、永磁电机和开关磁阻电机，综述了各自的优缺点，阐述了发展趋势。
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