The invention discloses a battery cell thermal runaway early warning method and device, a storage medium, a program product and a vehicle, and relates to the technical field of batteries, the method is applied to a battery system comprising a plurality of battery modules, each battery module comprises a plurality of battery cells, and daisy chain communication is adopted between the battery modules. The method comprises the following steps: acquiring battery cell state data of a battery cell and communication state data between battery modules, wherein the communication state data is determined by daisy chain communication; judging whether the cell state data and the communication state data meet a preset thermal runaway condition or not; and if yes, carrying out thermal runaway early warning on the battery system. The battery management system not only collects the state data of the battery core, but also monitors the communication state data of the daisy chain communication between the battery modules in real time, so that whether the battery system meets the preset thermal runaway condition or not can be comprehensively judged, the single condition that a traditional battery management system alarms voltage and temperature is avoided, and the battery management system is more intelligent. Therefore, the accuracy and timeliness of early warning of the thermal runaway event of the battery are improved.

    本申请公开了一种电芯热失控预警方法、装置、存储介质、程序产品及车辆,涉及电池技术领域,该方法应用于包括多个电池模组的电池系统,电池模组包括多个电芯,电池模组之间采用菊花链通信,该方法包括:获取电芯的电芯状态数据和电池模组之间的通信状态数据,通信状态数据由菊花链通信决定;判断电芯状态数据和通信状态数据是否符合预设热失控条件;若符合,则对电池系统进行热失控预警。由于本申请不仅采集电芯状态数据,还对电池模组之间的菊花链通信的通信状态数据进行实时监控,从而可全面判断电池系统是否符合预设热失控条件,避免了传统的电池管理系统对电压及温度进行报警的单一情况,从而提高了电池热失控事件预警的准确性与及时性。


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    Title :

    Battery cell thermal runaway early warning method and device, storage medium, program product and vehicle


    Additional title:

    电芯热失控预警方法、装置、存储介质、程序产品及车辆


    Contributors:
    KE CAN (author) / WANG SEN (author) / GUO FANGPING (author) / JIA SHUYUAN (author)

    Publication date :

    2024-12-27


    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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