The invention discloses a three-phase active short-circuit protection system for a motor controller of an electric vehicle, which is characterized in that when a main control chip fails and an FS control chip judges that a motor power module needs to enter an ASC mode, an enable signal is output to enable a first control power supply module and a driving power supply module to stop working; the main control chip is powered down due to the fact that the first control power supply module stops working, the primary side of the driving chip is powered down due to the fact that the first control power supply module stops working, and the secondary side upper bridge arm driving signal generation module and the secondary side lower bridge arm driving signal generation module of the driving chip are powered down due to the fact that the driving power supply module stops working. And the FS control chip outputs an upper bridge arm or lower bridge arm driving signal of the three-phase inverter bridge, and the upper bridge arm or lower bridge arm driving signal controls an upper bridge arm or lower bridge arm switch tube of the three-phase inverter bridge in the motor power module to be switched on. When the main control chip of the motor controller fails, the permanent magnet synchronous motor is controlled to stop.

    本发明公开了一种电动汽车电机控制器三相主动短路保护系统,当主控芯片故障时,FS控制芯片判断电机功率模块需要进入ASC模式时,输出使能信号使第一控制电源模块和驱动电源模块停止工作,主控芯片由于第一控制电源模块停止工作而掉电,驱动芯片的原边由于第一控制电源模块停止工作而掉电,驱动芯片的副边上桥臂驱动信号生成模块和副边下桥臂驱动信号生成模块由于驱动电源模块停止工作而掉电,FS控制芯片输出的三相逆变桥的上桥臂或下桥臂驱动信号,该上桥臂或下桥臂驱动信号控制电机功率模块中三相逆变桥的上桥臂或下桥臂开关管开通。本发明当电机控制器的主控芯片失效时,实现永磁同步电机受控停车。


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    Title :

    Three-phase active short-circuit protection system and method for motor controller of electric vehicle


    Additional title:

    电动汽车电机控制器三相主动短路保护系统及方法


    Contributors:
    XU GANG (author) / WANG WENYU (author) / ZHU JINHAI (author) / XIAO HAO (author) / GUAN XIN (author) / LIU SHUANG (author) / XIAO YUEHUI (author)

    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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