The embodiment of the invention provides a battery system safety early warning method and device, a storage medium and equipment, and the method comprises the steps: taking the temperature, voltage, state of charge and internal resistance of a battery as thermal runaway characteristic parameters, introducing a case-based reasoning method, and calculating the similarity between current real-time data and historical thermal runaway data, and similar cases are retrieved from the case library, and then whether the current battery pack has a thermal runaway risk is diagnosed by using the fault categories of the similar cases. Therefore, by identifying the data before the violent reaction of the thermal runaway, the potential safety risk of the battery can be identified in advance, the real-time effective early warning is realized, and the missing report rate of the thermal runaway early warning is reduced.

    本申请实施例提供一种电池系统安全预警方法、装置、存储介质及设备,该方法中,将电池的温度、电压、荷电状态及内阻作为热失控特征参数,引入案例推理方法,通过计算当前实时数据与历史已发生的热失控数据之间的相似程度,从案例库中检索出相似案例,进而利用相似案例的故障类别,对当前的电池包是否存在热失控风险进行诊断。如此,通过对热失控发生剧烈反应前的数据进行识别,可以提前识别出电池潜在的安全风险,实现实时有效地预警,并且降低热失控预警的漏报率。


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    Title :

    Battery system safety early warning method and device, storage medium and equipment


    Additional title:

    一种电池系统安全预警方法、装置、存储介质及设备


    Contributors:
    NI PENGFEI (author) / FEI WEIWEI (author) / HUANG WEIPING (author)

    Publication date :

    2022-12-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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