The invention discloses an electric automobile and a power battery sensor abnormity monitoring method thereof.The electric automobile comprises a power battery and a plurality of high-voltage electric appliances, and the high-voltage electric appliances are connected in parallel and then connected with the power battery in parallel through a contactor. Controlling the high-voltage electric appliance to work or stop working according to a preset rule, and acquiring a voltage and current signal fed back by the high-voltage electric appliance and a voltage and current signal detected by a sensor of the power battery; and determining the state of the sensor according to the voltage and current signals fed back by the high-voltage electric appliance and the voltage and current signals detected by the sensor. Abnormity of the power battery sensor can be monitored through the electric vehicle, battery damage or thermal runaway caused by sensor deviation can be effectively avoided, and cost and energy consumption are low.

    本发明公开了一种电动汽车及其动力电池传感器异常监控方法,其中电动汽车包括动力电池和多个高压用电器,多个高压用电器并联后通过接触器与动力电池并联,该方法包括:在确定电动汽车满足传感器异常监控条件时,按照预设规律控制高压用电器工作或停止工作,并获取高压用电器反馈的电压电流信号和动力电池的传感器检测的电压电流信号;根据高压用电器反馈的电压电流信号和传感器检测的电压电流信号确定传感器的状态。不仅能够通过电动汽车自身监控动力电池传感器异常,有效避免因传感器偏差造成的电池损坏或热失控,而且成本低、能耗低。


    Access

    Download


    Export, share and cite



    Title :

    Electric automobile and power battery sensor abnormity monitoring method thereof


    Additional title:

    电动汽车及其动力电池传感器异常监控方法


    Contributors:
    LEI XIAOJUN (author) / JI WENJIAN (author) / ZHAO BINGGEN (author) / LU BO (author) / BU FANGFANG (author)

    Publication date :

    2023-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    Battery system abnormity monitoring method and device

    LIU JIEMIN | European Patent Office | 2024

    Free access


    Battery compartment battery abnormity processing method based on new energy automobile battery swap station

    FAN FANGZHU / ZOU KUI / ZHANG SHUAI et al. | European Patent Office | 2024

    Free access

    New energy lithium battery automobile insulation abnormity early warning system

    CHANG WEI / PAN DUOZHAO | European Patent Office | 2023

    Free access

    Power battery system and heating system abnormity diagnosis method thereof

    ZHENG JUNJIANG / DUAN YUANXIANG / CHEN YUQING | European Patent Office | 2023

    Free access