The invention provides a battery management device for an electric vehicle, which can fully exert the capability of a battery. This electric vehicle is provided with: drive wheels; a travel motor that generates power for the drive wheels; and a battery for storing power consumed by the travel motor. The battery management device mounted on the electric vehicle is provided with: a detection unit that detects the state of the battery; and a controller that calculates a characteristic value indicating the capacity of the battery on the basis of the output of the detection unit, and manages charging and discharging of the battery on the basis of the characteristic value. Furthermore, when there is deterioration in the characteristic value, the controller determines whether or not the deterioration in the characteristic value is reversible deterioration on the basis of the output of the detection unit, and when it is determined that the deterioration is reversible deterioration, the controller returns the characteristic value to a value before the deterioration.

    本发明提供能够充分发挥电池的能力的电动车辆的电池管理装置。该电动车辆具备:驱动轮;行驶马达,其产生所述驱动轮的动力;以及电池,其蓄积供所述行驶马达消耗的电力。搭载于该电动车辆的电池管理装置具备:检测部,其检测电池的状态;以及控制器,其基于检测部的输出来计算表示电池的能力的特性值,并基于特性值来管理电池的充放电。而且,控制器在存在特性值的劣化的情况下,基于检测部的输出来判断特性值的劣化是否为可逆劣化,在判断为是可逆劣化的情况下,使特性值返回到劣化前的值。


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    Title :

    Battery management device for electric vehicle


    Additional title:

    电动车辆的电池管理装置


    Contributors:

    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



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