The invention relates to a brake chopper and a motor controller suitable for an electric vehicle, the motor controller controls a motor of the electric vehicle, the motor is connected with a vehicle battery, the brake chopper comprises a brake resistor, a follow current loop, a switch unit and a main control unit, the brake resistor is connected with the follow current loop in parallel, and the switch unit is connected with the main control unit. One end is connected with one end of a vehicle battery, the other end is connected with a first end of the switch unit, a second end of the switch unit is connected with the other end of the vehicle battery, a third end of the switch unit is connected with the main control unit, receives a control signal sent by the main control unit and switches on or off of the switch unit, and the main control unit is connected with the vehicle battery. And detecting the battery voltage and outputting the control signal. According to the brake chopper and the motor controller of the electric vehicle, the problem of energy consumption in the downhill process of the electric vehicle, especially a low-speed field vehicle, is solved, a good brake effect is achieved, and the safety and comfort of the vehicle are improved.

    本发明涉及一种制动斩波器,适用于电动车的电机控制器,所述电机控制器对所述电动车的电机进行控制,所述电机与车辆电池相连,所述制动斩波器包括:制动电阻、续流回路、开关单元以及主控单元,所述制动电阻与续流回路并联后,一端与车辆电池的一端相连,另一端与开关单元的第一端相连,开关单元的第二端与车辆电池的另一端相连,开关单元的第三端与主控单元相连,接受主控单元发出的控制信号,切换所述开关单元导通或关闭,所述主控单元与车辆电池相连,检测电池电压进而输出所述控制信号。本发明所述制动斩波器及电动车的电机控制器,解决了电动车尤其是低速场地车在下坡过程中能量消耗问题,具有很好的制动效果,提高了车辆的安全性和舒适性。


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    Title :

    Brake chopper and motor controller of electric vehicle


    Additional title:

    制动斩波器及电动车的电机控制器


    Contributors:

    Publication date :

    2024-03-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen



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