The invention discloses a charging method for dynamically adjusting a charging current of an electric vehicle, and the method comprises the following steps: S1, forming a two-dimensional charging current MAP taking the temperature and electric quantity of a battery as coordinates through a large amount of experimental data, collecting the current temperature and electric quantity of the battery inreal time in a charging process, and obtaining a corresponding allowable charging current through table look-up; S2, bringing power consumption, known in real time, of a high-voltage device of the whole vehicle into calculation, and performing mean value processing on the calculated power; S3, pre-adjusting the charging current; S4, performing filtering processing on the deviation value; S5, performing process adjustment on a charging current. According to the invention, through real-time calculation and real-time acquisition of the actual charging current, the dynamics of the adjustment process is ensured, so that the stability of the charging time is ensured. The charging current is calculated through a parallel strategy of three dimensions, two-stage adjustment and two processing, thestability of the charging current is ensured, and the service life of the battery is protected.

    本发明公开了一种电动汽车充电电流动态调节的充电方法,包括以下步骤:S1:通过大量实验数据,形成以电池温度、电池电量为坐标的二维充电电流MAP,充电过程中,实时采集当前电池温度以及电池电量,然后通过查表得出对应允许充电电流;S2:将实时已知的整车高压器件的功率消耗纳入计算,并对计算功率做均值处理;S3:充电电流预调节;S4:偏差值做滤波处理;S5:充电电流进行过程调节,本发明通过实时计算,实际充电电流通过实时采集,保证调节过程的动态性,从而确保充电时间的稳定。本发明通过三个维度、两级调节和两种处理的并行策略对充电电流进行计算,保证充电电流的稳定性,对电池寿命起到保护作用。


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    Titel :

    Charging method for dynamically adjusting charging current of electric vehicle


    Weitere Titelangaben:

    一种电动汽车充电电流动态调节的充电方法


    Beteiligte:
    ZHOU BOYIN (Autor:in) / PAN SHILIN (Autor:in) / MEI ZHOUSHENG (Autor:in) / CHEN LIN (Autor:in) / ZHOU BIN (Autor:in) / WANG HAIBO (Autor:in)

    Erscheinungsdatum :

    2020-11-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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