The invention relates to a vehicle-mounted charger, an electric vehicle, a control method and a computer readable storage medium. The on-board charger includes first and second low voltage DC-DC converters, and a controller. The first low-voltage DC-DC converter is for connection between a high-voltage battery cell and a low-voltage battery cell of a vehicle. The second low-voltage DC-DC converter is used for being connected between the high-voltage battery unit and the low-voltage battery unit. And the controller is used for controlling one of the second low-voltage DC-DC converter and the first low-voltage DC-DC converter to keep electrical connection with the high-voltage battery unit and the low-voltage battery unit, and disconnecting the other one of the second low-voltage DC-DC converter and the first low-voltage DC-DC converter from electrical connection with the high-voltage battery unit and the low-voltage battery unit. The controller is used for controlling the first low-voltage DC-DC converter to keep electrical connection with the high-voltage battery unit and the low-voltage battery unit at least in the charging process of the high-voltage battery unit; and controlling the second low-voltage DC-DC converter to maintain electrical connection with the high-voltage and low-voltage battery units in the non-charging process of the high-voltage battery units.

    本发明涉及一种车载充电机、电动汽车、控制方法和计算机可读存储介质。车载充电机包括第一和第二低压DC‑DC变换器、和控制器。第一低压DC‑DC变换器用于连接在车辆的高压电池单元与低压电池单元之间。第二低压DC‑DC变换器用于连接在高压电池单元和低压电池单元之间。控制器用于控制第二低压DC‑DC变换器和第一低压DC‑DC变换器中的一个保持与高压电池单元和低压电池单元的电连接,断开第二低压DC‑DC变换器和第一低压DC‑DC变换器中的另一个与高压和低压电池单元的电连接。控制器用于:控制第一低压DC‑DC变换器至少在高压电池单元的充电过程中保持与高压电池单元和低压电池单元的电连接;以及控制第二低压DC‑DC变换器在高压电池单元的非充电过程中保持与高压与低压电池单元的电连接。


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    Title :

    Vehicle-mounted charger, electric vehicle, control method and computer readable storage medium


    Additional title:

    车载充电机、电动汽车、控制方法和计算机可读存储介质


    Contributors:
    ZHANG LEI (author) / WANG YINGHUI (author) / WANG CHAO (author)

    Publication date :

    2024-06-21


    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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