The embodiment of the invention provides a battery management system, a battery equalization method, a controller, an electric vehicle and a medium, and belongs to the technical field of electric vehicle batteries. According to the battery management system disclosed by the embodiment of the invention, the high-voltage battery pack and the low-voltage battery pack are integrated in one battery pack and are both composed of the lithium ion batteries, so that the space is saved, the integration level of the system is improved, the layout structure of an equalization circuit is simplified, and the design of supporting a larger battery pack is further realized. And meanwhile, the first equalization circuit is added to the low-voltage battery pack, and the controller realizes equalization of the low-voltage battery pack by controlling the first equalization circuit, so that the performance difference of the first single battery is eliminated, and finally, the performance and the service life of the vehicle system battery are improved.

    本申请实施例提供了一种电池管理系统、电池均衡方法、控制器、电动汽车、介质,属于电动汽车电池技术领域。本申请实施例的电池管理系统通过将高压电池组和低压电池组集成在一个电池包内部,并均由锂离子电池构成,节省了空间,提高了系统的集成度,有利于简化均衡电路的布局结构,进而实现支持体积更大的电池组设计。同时对低压电池组增加了第一均衡电路,控制器通过控制第一均衡电路实现了低压电池组的均衡,进而消除第一单体电池的性能差异,最终提高了车辆系统电池的性能和使用寿命。


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    Title :

    Battery management system, battery equalization method, controller, electric vehicle and medium


    Additional title:

    电池管理系统、电池均衡方法、控制器、电动汽车、介质


    Contributors:

    Publication date :

    2024-07-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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