The invention discloses a charging circuit and method of a high-voltage direct-current charging pile for a low-voltage electric motorcycle. The low-voltage electric motorcycle comprises a low-voltage power battery, a motor driver and a motor. The charging circuit comprises a motor driver, a motor and a charging half-bridge circuit. The motor driver comprises a plurality of switch bridge arms, and the motor comprises a plurality of motor windings. Each motor winding can be regarded as a charging circuit inductor in the circuit, and a filter capacitor in the motor driver can be regarded as a charging circuit output filter capacitor, so that the motor windings and a motor driver capacitor can be used as a part of a charging voltage regulation circuit. The high-voltage direct-current charging pile can charge the low-voltage power battery without an additional external charger.

    一种高压直流充电桩对低压电动摩托车的充电电路及方法,所述低压电动摩托车包括:低压动力电池、电机驱动器及电机;所述充电电路包括:电机驱动器、电机和充电半桥电路;所述电机驱动器包括若干开关桥臂,所述电机包括若干电机绕组。各个电机绕组在电路中可以视作充电电路电感器件,电机驱动器中的滤波电容可视为充电电路输出滤波电容,从而可以将电机绕组及电机驱动器电容作为充电调压电路的一部分,无需额外的外置充电器即可实现高压直流充电桩对低压动力电池的充电。


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    Title :

    Charging circuit and method for low-voltage electric motorcycle by high-voltage direct-current charging pile


    Additional title:

    一种高压直流充电桩对低压电动摩托车的充电电路及方法


    Contributors:
    LIU XIAOFEN (author)

    Publication date :

    2025-03-14


    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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