The embodiment of the invention discloses a charging method for a low-voltage storage battery, the method is applied to a vehicle control unit of a vehicle, the vehicle comprises the low-voltage storage battery and a DCDC for charging the low-voltage storage battery, and the charging method comprises the following steps: under the condition that the DCDC charges the low-voltage storage battery, obtaining a first output current of the DCDC, and determining a first working voltage according to a magnitude relationship between the first output current and a first preset current threshold value, and sending the first working voltage to the DCDC, so that the DCDC charges the low-voltage storage battery according to the first working voltage. The embodiment of the invention further provides a charging device of the low-voltage storage battery, a vehicle control unit and a vehicle.

    本发明实施例公开了一种低压蓄电池的补电方法,该方法应用于车辆的整车控制器中,该车辆包括:低压蓄电池和向低压蓄电池进行补电的DCDC,包括:在DCDC向低压蓄电池补电的情况下,获取DCDC的第一输出电流,根据第一输出电流与第一预设电流阈值之间的大小关系,确定第一工作电压,将第一工作电压发送至DCDC,以使得DCDC按照第一工作电压向低压蓄电池补电。本发明实施例还同时提供了一种低压蓄电池的补电装置、整车控制器和车辆。


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    Title :

    Charging method and device for low-voltage storage battery, vehicle control unit and vehicle


    Additional title:

    一种低压蓄电池的补电方法、装置、整车控制器和车辆


    Contributors:
    YANG YIZE (author) / ZHANG CAIGAN (author) / ZHANG MENG (author)

    Publication date :

    2025-03-21


    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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