The invention discloses a battery health state estimation method, device and system. The method comprises the following steps: acquiring vehicle state parameters; wherein the vehicle state parameters comprise estimation condition parameters and driving cycle calculation parameters; judging whether the vehicle meets a battery health state estimation condition or not according to the estimation condition parameter; if the vehicle meets the battery health state estimation condition, accumulatively counting battery capacity attenuation characteristics of the vehicle in a preset driving period according to the driving period calculation parameters; wherein when the attenuation amount of the battery capacity is smaller than a preset value, plus 1 is added to the counting times; and when the counting times reach a preset standard, correcting the nominal capacity of the vehicle battery to obtain the latest battery health state. According to the technical scheme of the embodiment of the invention, the estimation precision and efficiency of the battery health state are improved, and the measurement and calculation cost is reduced.

    本发明公开了一种电池健康状态估算方法、装置及系统。该方法包括:获取车辆状态参数;其中,车辆状态参数包括估算条件参数和驾驶周期计算参数;根据估算条件参数,判断车辆是否满足电池健康状态估算条件;若车辆满足电池健康状态估算条件,则根据驾驶周期计算参数对车辆在预设驾驶周期内的电池容量衰减特征进行累计计数;其中,在电池容量的衰减量小于预设值时,对计数次数+1;当计数次数达到预设标准时,则修正车辆电池的标称容量,以得到最新电池健康状态。本发明实施例的技术方案提高了电池健康状态的估算精度和效率,并且降低了测算成本。


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    Title :

    Battery health state estimation method, device and system


    Additional title:

    一种电池健康状态估算方法、装置及系统


    Contributors:
    WANG HAIQIU (author) / ZHANG CAIQING (author) / CHEN BAOGUO (author) / LIU FENG (author)

    Publication date :

    2023-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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