The invention belongs to the technical field of electric vehicle batteries, and particularly relates to an electric vehicle battery charging capacity balancing system, which comprises a battery cell module, a battery charging capacity balancing module, a battery charging capacity balancing module, a battery charging capacity balancing module and a battery charging capacity balancing module, the parallel bag modules are arranged in two groups, each group of parallel bag modules comprises two groups of parallel bags, and each group of parallel bags comprises eight battery cells; the equalization circuit module comprises a passive equalization module and an active equalization module; and the stack module comprises two groups of parallel branches, and the parallel branches are composed of equalization circuit modules which are connected in series. According to the invention, the battery cell module, the parallel pack module, the equalization circuit module and the stack module are arranged, the advantages of passive equalization and active equalization are combined, the autonomous battery equalization level of the battery pack in the whole driving period is measured, and equalization can be rapidly realized in order to more effectively solve the problem of inconsistent battery cell capacities of lithium batteries.

    本发明属于电动汽车电池技术领域,具体涉及一种电动汽车电池充电能力均衡系统,包括:电芯模块,所述电芯模块包括128个串联的电芯;并行包模块,所述并行包模块设置有两组,每组所述并行包模块包括两组并行包,每组所述并行包包括8个电芯;均衡电路模块,所述均衡电路模块包括被动均衡模块和主动均衡模块;堆栈模块,所述堆栈模块包括两组并联分支,所述并联分支由串联的均衡电路模块构成。本发明中通过设置电芯模块、并行包模块、均衡电路模块、堆栈模块,其结合了被动均衡和主动均衡的优点,以测量电池包在整个驾驶周期中拥有的自主性电池均衡水平,为了更有效地解决锂电池的电芯容量不一致的问题,能够快速实现均衡。


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    Title :

    Balancing system for charging capacity of battery of electric vehicle


    Additional title:

    一种电动汽车电池充电能力均衡系统


    Contributors:

    Publication date :

    2024-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / 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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