The invention discloses a battery string module for a power battery system of an electric vehicle. The module comprises a BMU control module provided with a CAN bus, and a parallel access end, a BMU execution unit, a series cell and a parallel access end which are connected in sequence. The BMU control module is respectively connected with the BMU execution unit and the series battery cell, and the series battery cell is formed by connecting at least two battery cells in series. A plurality of battery cells are connected through the BMU control module and the BMU execution unit, so that the series battery cells with different capacities and different types can be used in parallel. The structure enables the configuration of the battery pack to be more flexible, ensures that the battery string modules do not influence each other and can be put into and withdrawn from the battery pack at any time, and increases the flexibility of parallel connection of the battery string modules. Therefore, the module facilitates energy recovery of the new energy automobile, the endurance mileage is increased, the electric automobile runs more safely and reliably, and the purposes that maintenance is easy and convenient, and the charging mode is flexible and rapid are achieved. The service life of the whole vehicle is greatly prolonged, and meanwhile good economic benefits and social benefits are achieved.

    一种电动汽车动力电池系统用的电池串模块,包括设置CAN总线的BMU控制模块和顺序连接的并联接入端、BMU执行单元、串联电芯、并联接入端,所述BMU控制模块分别连接BMU执行单元和串联电芯,所述串联电芯包括至少两个电芯串联而成,本发明采用多个电芯通过BMU控制模块和BMU执行单元连接组成,可以实现不同容量、不同类型的串联电芯进行并联使用,使电池组配置更加灵活,保证了电池串模块之间互不影响且可以随时投入和退出电池组,增加了电池串模块并联的灵活性,便于新能源汽车的能量回收,提高了续航里程,使电动汽车运行更安全可靠、达到了维修简单方便、充电方式灵活快捷的目的,大大提高了整车使用寿命,同时也有很好的经济效益和社会效益。


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    Title :

    Battery string module for power battery system of electric vehicle


    Additional title:

    一种电动汽车动力电池系统用的电池串模块


    Contributors:
    DING XIAODONG (author) / YOU BAOXIAN (author) / WANG XIUJU (author)

    Publication date :

    2021-11-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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