The invention relates to the technical field of electric automobiles, and discloses a double-battery system, an electric automobile and a charging method of the electric automobile. The double battery pack comprises a first battery pack and a second battery pack, the first battery pack and the second battery pack are arranged in parallel and are connected with a battery input interface of the high-voltage box; the high-voltage box is provided with two direct-current charging interfaces, one direct-current charging interface is connected with the output end of the first charging gun, the other direct-current charging interface is connected with the output end of the second charging gun, and the input end of the first charging gun and the input end of the second charging gun are both connected with the charging pile controller. The whole vehicle controller is communicated with a battery management unit of the high-voltage box, and the battery management unit achieves the purpose that double charging guns are inserted at the same time to charge the double battery packs by controlling opening and closing of a relay in the high-voltage box. Under the condition that the battery standard box is not changed, a set of same battery pack is connected in parallel outside, and the capacity is doubled.

    本发明涉及电动汽车技术领域,本发明公开了一种双电池系统、电动汽车及其充电方法,系统包括:双电池组、高压箱和整车控制器;所述双电池组,包括:第一电池组和第二电池组;第一电池组和第二电池组并联设置,且均与高压箱的电池输入接口连接;所述高压箱设有两个直流充电接口,其中一个直流充电接口与第一充电枪的输出端连接,另外一个直流充电接口与第二充电枪的输出端连接,第一充电枪的输入端和第二充电枪的输入端均与充电桩控制器连接;所述整车控制器与高压箱的电池管理单元通信,电池管理单元通过控制高压箱中继电器的开闭,实现同时插双充电枪向双电池组充电。在不改变电池标准箱的情况下外部再并联一套相同的电池组,容量增加一倍。


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    Title :

    Double-battery system, electric vehicle and charging method of electric vehicle


    Additional title:

    一种双电池系统、电动汽车及其充电方法


    Contributors:
    KAN CONG (author) / YUAN ZHONG (author) / WU LIANGSHU (author) / QI MINGZHU (author)

    Publication date :

    2023-05-30


    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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