The invention relates to an electric vehicle low-voltage battery charging control system which comprises a vehicle-mounted controller, a vehicle-mounted charger, an electric control switch, a low-voltage battery, a battery management system and a vehicle charging interface, the vehicle-mounted controller and the vehicle-mounted charger are connected with the low-voltage battery in series through the electric control switch, and the vehicle-mounted controller is connected with the battery management system in series. The battery management system is in communication connection with the electric control switch and the low-voltage battery. The vehicle charging interface comprises a CP interface, an L interface and an N interface, the CP interface is electrically connected with the vehicle-mounted controller, and the L interface and the N interface are electrically connected with the vehicle-mounted charger; power supply equipment comprises a power supply controller, a CP connector terminal, an L connector terminal, an N connector terminal, a second relay and a third relay, the power supply controller is connected with the CP connector terminal, one end of the second relay is electrically connected with the L connector terminal, and one end of the third relay is electrically connected with the N connector terminal. According to the invention, the low-voltage battery with insufficient power can be simply and conveniently charged through the external power supply equipment.

    本发明涉及一种电动汽车低压电池充电控制系统,包括车载控制器、车载充电机、电控开关、低压电池、电池管理系统和车辆充电接口,车载控制器和车载充电机分别通过电控开关与低压电池串联,车载控制器与电池管理系统串联,电池管理系统分别与电控开关和低压电池通信连接;车辆充电接口包括CP接口、L接口和N接口,CP接口与车载控制器电连接,L接口和N接口均与车载充电机电连接;供电设备包括供电控制器、CP接头端子、L接头端子、N接头端子、第二继电器和第三继电器,供电控制器连接CP接头端子,第二继电器的一端电连接L接头端子,第三继电器的一端电连接N接头端子。实施本发明,可通过外接的供电设备简单、方便地为亏电的低压电池充电。


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    Title :

    Alternating current charging control system for low-voltage battery of electric vehicle


    Additional title:

    一种电动汽车低压电池交流充电控制系统


    Contributors:
    LIU TIESHAN (author) / HAN YUTAO (author) / DU PENG (author) / MIAO SHIYU (author) / TAN YANG (author)

    Publication date :

    2021-08-13


    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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