The invention discloses a battery management method for an electric vehicle. The method comprises the following steps: A, presetting an initial capacity and an initial constant-current discharge curve of a power battery; in the discharging process of the power battery, recording a real-time discharging curve; b, marking an approximate constant-current discharge interval on the real-time discharge curve, and then standardizing the marked curve section; c, generating a battery state matrix; d, processing and converting the battery state matrix; e, predicting the current actual maximum capacity and SOC of the power battery according to the battery state matrix; and F, determining a current charging and discharging strategy according to the current actual maximum capacity and SOC of the power battery predicted last time. According to the method, the defects in the prior art can be overcome, and the prediction accuracy of the actual maximum capacity and the SOC of the battery is improved.

    本发明公开了一种电动汽车电池管理方法,包括以下步骤:A、预置动力电池的初始容量和初始恒流放电曲线;在动力电池放电过程中,记录实时放电曲线;B、在实时放电曲线上标记近似恒流放电区间,然后将标记的曲线段进行标准化;C、生成电池状态矩阵;D、对电池状态矩阵进行处理转换;E、根据电池状态矩阵对动力电池当前的实际最大容量和SOC进行预测;F、根据最近一次预测的动力电池当前的实际最大容量和SOC,确定当前的充放电策略。本发明能够改进现有技术的不足,提高对于电池实际最大容量和SOC的预测精准度。


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    Titel :

    Electric vehicle battery management method


    Weitere Titelangaben:

    一种电动汽车电池管理方法


    Beteiligte:
    LIANG HAIFENG (Autor:in) / WANG RUOXI (Autor:in)

    Erscheinungsdatum :

    2024-05-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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