The invention relates to a vehicle-mounted charging circuit, a control method, a vehicle, a storage medium and a program product. The circuit comprises a sampling circuit unit, a booster circuit unit, an insulation resistance detection circuit unit and a vehicle-mounted battery, the sampling circuit unit is used for collecting the voltage of the charging interface; the first end of the booster circuit unit is connected with the first end of the charging interface and the first end of the vehicle-mounted battery, the second end of the booster circuit unit is connected with the second end of the charging interface and the second end of the vehicle-mounted battery, and the third end of the booster circuit unit is grounded; the insulation resistance detection circuit unit comprises a first resistor unit and a first switch, the first end of the first resistor unit is grounded through the first switch, and the second end of the first resistor unit is connected with the negative electrode end of the vehicle-mounted battery. When the voltage of the charging interface is large, the first switch is closed, and the voltage of the charging interface is released by the first resistor unit. Therefore, the multiplexing insulation resistance detection circuit does not need to add a voltage release resistor, the hardware cost is reduced, and the charging efficiency is improved.

    本公开涉及一种车载充电电路、控制方法、车辆、存储介质及程序产品。电路包括:采样电路单元、升压电路单元、绝缘电阻检测电路单元和车载电池;采样电路单元用于采集充电接口的电压;升压电路单元的第一端与充电接口的第一端、车载电池的第一端相连,升压电路单元的第二端与充电接口的第二端、车载电池的第二端相连,升压电路单元的第三端接地;绝缘电阻检测电路单元包括第一电阻单元和第一开关,第一电阻单元的第一端经由第一开关接地,第一电阻单元的第二端与车载电池的负极端相连。在充电接口的电压较大时第一开关闭合,利用第一电阻单元对充电接口泄压。如此,复用绝缘电阻检测电路无需额外新增泄压电阻,降低了硬件成本,提高充电效率。


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    Title :

    Vehicle-mounted charging circuit, control method, vehicle, storage medium and program product


    Additional title:

    车载充电电路、控制方法、车辆、存储介质及程序产品


    Contributors:
    SONG DERU (author) / FANG DIWEI (author) / LIU YONGXING (author)

    Publication date :

    2025-02-25


    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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