The invention discloses a failure early warning method and device for a power battery, a vehicle and a storage medium, and the method comprises the steps: collecting the current operation parameters of each single battery in the power battery; detecting whether the current operation parameters meet failure risk conditions or not, and determining battery modules with failure risks for the single batteries meeting the failure risk conditions; and the current voltage and the current temperature of each single battery in the battery module are collected, and when the current voltage and the current temperature reach failure threshold values, the electric vehicle is controlled to conduct failure early warning reminding. Therefore, the technical problems that in the prior art, the operation state of each single battery cannot be accurately mastered, the batteries with failure risks in the power battery pack cannot be accurately predicted in time, thermal runaway safety accidents caused by power battery failure are difficult to prevent in time, and the safety of the batteries and the reliability of a vehicle cannot be guaranteed are solved.

    本申请公开了一种动力电池的失效预警方法、装置、车辆及存储介质,其中,方法包括:采集动力电池中每个单体电池的当前运行参数;检测所述当前运行参数是否满足失效风险条件,并将检测到满足失效风险条件的单体电池确定存在失效风险的电池模组;采集电池模组中的每个单体电池的当前电压和当前温度,并在当前电压和所述当前温度达到失效阈值时,控制电动汽车进行失效预警提醒。由此,解决了相关技术中无法精确掌控每个单体电池的运行状态,且不能及时且准确地预测动力电池组中存在失效风险的电池,很难及时阻止因动力电池失效造成的热失控安全事故,无法保证电池的安全性和车辆的可靠性的技术问题。


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    Title :

    Failure early warning method and device of power battery, vehicle and storage medium


    Additional title:

    动力电池的失效预警方法、装置、车辆及存储介质


    Contributors:
    YU MEIXIN (author) / ZENG XIANGBING (author) / SONG KAITONG (author) / WANG HENG (author) / YAN HE (author) / FEI CHEN (author) / YAO CHENGXIN (author)

    Publication date :

    2022-04-05


    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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