The invention relates to the technical field of vehicle-mounted charging, in particular to a fast charging method, a battery system circuit and an electric vehicle. The method comprises the steps: when the method detects that a fast charging gun is inserted into a socket module, acquiring the first voltage of a first battery module and the second voltage of a second battery module, wherein the first battery module is arranged in a first battery branch, and the second battery module is arranged in the second battery branch; when the first voltage is smaller than the second voltage, charging the first battery module through the first battery branch, and when the method detects that the difference between the first voltage and the second voltage is within a preset voltage difference range, charging the first battery module and the second battery module at the same time; and when the first voltage is not smaller than the second voltage, charging the second battery module through the second battery branch, and when the method detects that the difference between the second voltage and the first voltage is within a preset voltage difference range, charging the first battery module and the second battery module at the same time. The charging efficiency is improved, and the charging safety is enhanced.

    本发明涉及车载充电技术领域,尤其涉及一种快充充电方法、电池系统电路和电动车,该方法包括当检测到快充枪插入插座模块后,获取第一电池模组的第一电压和第二电池模组的第二电压,其中,第一电池模组设置在第一电池支路中,第二电池模组设置在第二电池支路中;当第一电压小于第二电压时,通过第一电池支路对第一电池模组进行充电,在检测到第一电压和第二电压之差在预设压差范围内时,同时对第一电池模组和第二电池模组进行充电;当第一电压不小于第二电压时,通过第二电池支路对第二电池模组进行充电,在检测到第二电压和第一电压之差在预设压差范围内时,同时对第一电池模组和第二电池模组进行充电。本发明提高充电效率,增强充电的安全性。


    Access

    Download


    Export, share and cite



    Title :

    Fast charging method, battery system circuit and electric vehicle


    Additional title:

    一种快充充电方法、电池系统电路和电动车


    Contributors:
    XIAO HAN (author) / LIU SHUANG (author) / PENG YANGMING (author) / HUANG HONGBO (author) / NI ZHENG (author)

    Publication date :

    2021-11-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    METHOD FOR FAST CHARGING ELECTRIC VEHICLE BATTERY

    LIU MINGHONG / SNYDER KENT | European Patent Office | 2024

    Free access


    Electric vehicle thermal management system for battery fast charging

    LI XIAOYAN / LIU BAOGUO / LI SHIBO et al. | European Patent Office | 2023

    Free access


    Charging pile for charging electric vehicle battery and electric vehicle battery charging method

    SHEN JIANLIANG / FU SHUANGHUI | European Patent Office | 2024

    Free access