The invention discloses a relay control circuit, a relay control method and an electric vehicle, and relates to the technical field of electric vehicles. The relay control circuit is used for controlling the relay, the relay is arranged on a high-voltage loop of the power battery pack, the relay control circuit comprises a plurality of controllers, the controllers are controllers in any management system in a vehicle, the controllers are provided with power output ends, and the power output ends are mutually connected to form an annular loop. The input end of a coil in the relay is connected with the annular loop, and the output end of the coil is grounded. According to the invention, the plurality of controllers are adopted to control the relay together, even if the voltage output by part of the controllers cannot meet the driving requirement of the relay, the rest of the controllers with normal output can ensure the normal driving of the relay, so that the contacts of the relay can be effectively closed, the arc discharge risk is reduced, and the relay adhesion is avoided; and the vehicle safety is ensured.

    本发明公开了一种继电器控制电路、继电器控制方法及电动汽车,涉及电动汽车技术领域。继电器控制电路用于控制继电器,继电器设置于动力电池包的高压回路上,继电器控制电路包括多个控制器,控制器为车辆中任一管理系统中的控制器,控制器具有电源输出端,各电源输出端相互连接形成环形回路,继电器中的线圈的输入端与环形回路连接,线圈的输出端接地。本发明通过采用多个控制器共同控制继电器,即使部分控制器所输出的电压无法达到继电器的驱动要求,其余输出正常的控制器也能够保证继电器正常驱动,使得继电器的触点能够有效闭合,降低拉弧风险,避免继电器粘连,保证了车辆安全。


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    Title :

    Relay control circuit, relay control method and electric vehicle


    Additional title:

    继电器控制电路、继电器控制方法及电动汽车


    Contributors:
    JIANG TAO (author) / HUANG ZHEN (author) / MA JIEGAO (author) / JIANG ZHONGZHOU (author) / WU JIAN (author) / ZHANG ZHIQIANG (author) / NIE MINGYONG (author)

    Publication date :

    2022-11-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01H Elektrische Schalter , ELECTRIC SWITCHES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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