Provided is a battery diagnosis device capable of diagnosing whether or not a battery is a normal product in a state in which the battery is mounted on an electric vehicle. A battery diagnosis device (3), which performs a diagnosis process for determining whether a battery (2) mounted in an electric vehicle (1) is normal or not, discharges a current of a predetermined current value from the battery (2), and when the voltage of the battery drops to a lower limit voltage before a predetermined time elapses from the start of discharge. Or when the output value from the battery during the period from the start of discharge to the elapse of the predetermined time is equal to or less than a predetermined ratio of the output value output from the battery which is a normal product and a new product during the period from the start of discharge to the elapse of the predetermined time, it is diagnosed that the battery is likely not to be a normal product.

    本发明提供一种能够在电池搭载于电动车辆的状态下进行电池是否为正常品的诊断的电池诊断装置。进行搭载于电动车辆(1)的电池(2)是否正常的诊断处理的电池诊断装置(3)在从电池(2)放出预定的电流值的电流且从放电开始起经过预定时间之前所述电池的电压降低到下限电压的情况下,或者在从放电开始起到经过所述预定时间为止的期间的来自所述电池的输出值为在从放电开始起到经过所述预定时间为止的期间正规品且新品的电池所输出的输出值的预定比例以下的情况下,诊断为该电池有可能不是正常品。


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    Title :

    BATTERY DIAGNOSTIC DEVICE


    Additional title:

    电池诊断装置


    Contributors:
    KIKUCHI JUN (author)

    Publication date :

    2024-03-01


    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 diagnostic device, battery diagnostic method, battery pack, and vehicle

    SUNG YONG-CHUL / AHN YANG-SOO | European Patent Office | 2022

    Free access