The invention discloses a charging mode switching control method, a charging control device and an electric vehicle. The method comprises the steps that the insulation detection output voltage of a charging pile is obtained, and the maximum allowable charging voltage of a battery pack is obtained; when the insulation detection output voltage is greater than or equal to the maximum allowable charging voltage of the battery pack, entering a direct current fast charging mode to charge the battery pack; when the insulation detection output voltage is smaller than the maximum allowable charging voltage of the battery pack, entering a boost charging mode, obtaining the current voltage of the battery pack, and obtaining the maximum output voltage of the charging pile, the current charging voltage of the charging pile and the charging current of the charging pile; determining a vehicle request charging voltage according to the highest output voltage of the charging pile and the current voltage of the battery pack; and when the vehicle request charging voltage is larger than the current charging voltage of the charging pile and the charging current of the charging pile is smaller than a preset current value, after the output voltage of the charging pile is boosted, the battery pack is charged. According to the technical scheme, the charging efficiency of the electric vehicle battery pack is improved.

    本发明公开一种充电模式切换控制方法、充电控制装置和电动车,方法包括:获取充电桩的绝缘检测输出电压以及获取电池包最高允许充电电压;在绝缘检测输出电压大于或等于电池包最高允许充电电压时,进入直流快充模式给电池包进行充电;在绝缘检测输出电压小于电池包最高允许充电电压时,进入升压充电模式,并获取电池包当前电压以及获取充电桩最高输出电压、充电桩当前充电电压和充电桩充电电流;根据充电桩最高输出电压和电池包当前电压确定车辆请求充电电压;在车辆请求充电电压大于充电桩当前充电电压,且充电桩充电电流小于预设电流值时,对充电桩输出电压进行升压后,给电池包进行充电。本发明技术方案旨在提升对电动车电池包的充电效率。


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    Title :

    Charging mode switching control method, charging control device and electric vehicle


    Additional title:

    充电模式切换控制方法、充电控制装置和电动车


    Contributors:
    YU QINGFENG (author) / XUE JIYONG (author) / ZHAO LINAN (author) / JIANG YIHANG (author)

    Publication date :

    2024-02-02


    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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