The invention provides a battery system abnormal risk early warning method and device and related equipment. The method comprises the following steps: acquiring first discharge system internal resistance and first charge system internal resistance of a battery system in a first state; obtaining first operation data within a first preset time period after the discharge current of the battery system in the second state reaches a plurality of preset first current thresholds; acquiring second operation data within a second preset time period after the charging current of the battery system in the third state reaches a plurality of preset second current thresholds; determining a second discharge system internal resistance of the battery system based on the plurality of first current thresholds and the first operation data, and determining a second charge system internal resistance of the battery system based on the plurality of second current thresholds and the second operation data; and carrying out early warning on the abnormal risk of the battery system based on the plurality of system internal resistance data. The internal resistance of the battery system is detected in real time, and the use safety of the battery system is improved.

    本申请提供一种电池系统异常风险预警方法、装置及相关设备,通过获取电池系统在第一状态下的第一放电系统内阻和第一充电系统内阻;获取电池系统在第二状态下的放电电流分别达到预置的多个第一电流阈值后第一预设时间段内的第一运行数据;获取电池系统在第三状态下的充电电流分别达到预置的多个第二电流阈值后第二预设时间段内的第二运行数据;基于多个第一电流阈值和第一运行数据,确定电池系统的第二放电系统内阻,并基于多个第二电流阈值和第二运行数据,确定电池系统的第二充电系统内阻;基于上述多个系统内阻数据,对电池系统的异常风险进行预警。实现了对电池系统的内阻实时检测以及提高电池系统的使用安全性。


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    Title :

    Battery system abnormal risk early warning method and device and related equipment


    Additional title:

    电池系统异常风险预警方法、装置及相关设备


    Contributors:
    OU PENGJIE (author) / QIN ZHONGRONG (author) / ZUO YAOBIN (author)

    Publication date :

    2023-03-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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