The invention discloses an electric vehicle battery pack thermal runaway early warning system and method. The electric vehicle battery pack thermal runaway early warning system comprises a pressure detection module used for detecting the pressure of an electric vehicle battery pack; a control module which is used for sending an early warning signal of thermal runaway of the battery pack and outputting battery pack state information according to the pressure data detected by the pressure detection module and whether the battery pack has the thermal runaway fault; an awakening module which is used for awakening the battery management module and feeding back the signal transmission state of the awakening module to the control module; a battery management module which is used for feeding backan awakened signal to the control module through the awakening feedback module after awakening; and a signal modulation module which is used for modulating the battery pack state information, sendingthe modulated battery pack state information to the battery management module and feeding back the self signal transmission state to the control module. When a thermal runaway fault is found, the control module immediately carries out early warning, the output reliability is confirmed through a feedback signal, and early warning can be timely, effectively and accurately carried out.

    本发明公开了一种电动汽车电池包热失控预警系统及方法。电动汽车电池包热失控预警系统包括压力检测模块,用于检测电动汽车电池包的压力;控制模块,用于根据压力检测模块检测到的压力数据电池包是否发生热失控故障,若是则发出电池包热失控的预警信号和输出电池包状态信息;唤醒模块,用于唤醒电池管理模块和将自身信号传送状态反馈给控制模块;电池管理模块,用于唤醒后,通过唤醒反馈模块向控制模块反馈被唤醒的信号;信号调制模块,用于将电池包状态信息进行调制并发送给电池管理模块和将自身信号传送状态反馈给控制模块。本发明发现热失控故障时控制模块马上进行预警,且通过反馈信号确认输出的可靠性,可以及时、有效、准确的进行预警。


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    Title :

    Electric vehicle battery pack thermal runaway early warning system and method


    Additional title:

    一种电动汽车电池包热失控预警系统及方法


    Contributors:
    WU WENCHEN (author) / XU GUOWEI (author) / FAN HAO (author) / ZHANG RONGSHAN (author)

    Publication date :

    2020-11-10


    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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