The invention provides a power battery low-temperature heating strategy determination method, a battery management system and a vehicle, and belongs to the field of power battery thermal management. Comprising the following steps: determining typical working conditions; under each typical working condition, a driving heating lower limit value is determined, and a driving heating upper limit value, a charging heating lower limit value and a charging heating upper limit value are assumed; through a simulation test, multiple sets of simulation data are obtained by changing the assumed driving heating upper limit value, the assumed charging heating lower limit value and the assumed charging heating upper limit value, and the simulation data comprise the heating starting frequency and the heating energy consumption; and determining an optimal driving heating upper limit value, a charging heating lower limit value and a charging heating upper limit value according to the heating starting times and the heating energy consumption, and obtaining an optimal heating strategy under each typical working condition. According to the heating strategy determination method provided by the invention, battery performance and heating energy consumption can be taken into consideration, the refined and reasonable requirements of the whole vehicle on the performance of the battery management system are met, and the heating strategy can be determined according to an existing heating mode.

    本发明提供了一种动力电池低温加热策略确定方法、电池管理系统及车辆,属于动力电池热管理领域。包括如下步骤:确定典型工况;在各典型工况下,确定行车加热下限值,假定行车加热上限值、充电加热下限值和充电加热上限值;通过仿真试验,通过改变假定的行车加热上限值、充电加热下限值和充电加热上限值得到多组仿真数据,仿真数据包括加热开启次数和加热能耗;根据加热开启次数和加热能耗确定最优的行车加热上限值、充电加热下限值和充电加热上限值,得到各典型工况下的最优加热策略。本发明提出的加热策略确定方法可以兼顾电池性能和加热能耗,满足整车对于电池管理系统性能精细化、合理化的需求,且现有加热方式也能根据本发明确定加热策略。


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    Title :

    Power battery low-temperature heating strategy determination method, battery management system and vehicle


    Additional title:

    动力电池低温加热策略确定方法、电池管理系统及车辆


    Contributors:
    NIU WENQING (author) / FU WEIDONG (author) / WU YUNCHUAN (author) / ZHANG DIANQING (author) / LI WEI (author)

    Publication date :

    2023-06-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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