The invention discloses a power supply system and a charging method of a new energy automobile and the new energy automobile, and belongs to the technical field of new energy. Determining a charging mode; if the battery pack is in the overcharge mode, the BMS controls the first switching relay group to be closed, so that the battery pack is configured into two battery branches which are connected in parallel to be connected into a main loop, and each battery branch comprises three single-pack batteries; the main loop relay group and the charging relay group are controlled to be closed, so that the charging module charges the two battery branches through the main loop; if the battery pack is in the general charging mode, the BMS controls the second switching relay set to be closed, so that the battery pack is configured into three battery branches connected in parallel to be connected into the main loop, and each battery branch comprises two single-pack batteries; and the main loop relay group and the charging relay group are controlled to be closed, so that the charging module charges the three battery branches through the main loop. Switching between high-voltage charging and low-voltage charging can be achieved, the charging time can be shortened, and the cost can be reduced.

    本申请公开了一种新能源汽车的供电系统、充电方法及新能源汽车,属于新能源技术领域。确定充电模式;若是超充模式,则BMS控制第一切换继电器组闭合,以使电池包被配置为两个并联的电池分支接入主回路中,每个电池分支中包括三个单包电池;并控制主回路继电器组和充电继电器组闭合,以使充电模块通过主回路对两个电池分支充电;若是普充模式,则BMS控制第二切换继电器组闭合,以使电池包被配置为三个并联的电池分支接入主回路中,每个电池分支中包括两个单包电池;并控制主回路继电器组和充电继电器组闭合,以使充电模块通过主回路对三个电池分支充电。本申请能实现高压充电和低压充电的切换,能减少充电时间,降低成本。


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    Title :

    Power supply system and charging method of new energy automobile and new energy automobile


    Additional title:

    新能源汽车的供电系统、充电方法及新能源汽车


    Contributors:
    LIU MINGWEI (author)

    Publication date :

    2025-02-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung




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