The invention provides a motor overspeed fault protection system and method for a pure electric vehicle. The system comprises a motor, a high-voltage plug-in and a motor controller, wherein the high-voltage plug-in further comprises a three-phase high-voltage plug-in unit including a first port electrically coupled with the motor and a second port, and a relay module including a relay the three phases of which are switched on and off simultaneously, wherein the three phases of the relay are electrically coupled with the three phase lines of the three-phase high-voltage plug-in unit at the second port respectively, and the other end of the relay module is electrically coupled with the motor controller. According to the high-voltage plug-in and the fault protection method, the relay module is arranged on the plug-in, and a driving system is protected by switching on and switching off the relay module. When the electric vehicle runs at a high speed, the motor controller is protected and cannot be damaged.

    本发明提供了一种纯电动车电机超速故障保护系统及其方法,所述系统包括电机、高压插件和电机控制器,所述高压插件进一步包括:三相高压插件单元,包括第一、第二端口,所述第一端口电耦接所述电机;继电器模块,包括三相同时开关的继电器,于所述第二端口分别电耦接所述三相高压插件单元的三个相线,所述继电器模块的另一端电耦接所述电机控制器。本发明通过一种高压插件及故障保护方法,在插件上设置继电器模块,通过继电器模块的开通与关断来保护驱动系统。保证电动车在高速运行时,电机控制器受到保护,不会损坏。


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    Title :

    Motor overspeed fault protection system and method for pure electric vehicle


    Additional title:

    一种纯电动车电机超速故障保护系统及其方法


    Contributors:
    XIE BOXIAO (author)

    Publication date :

    2021-11-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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