The embodiment of the invention provides a storage battery charging control method and system and an electric vehicle. The storage battery charging control method comprises the following steps: determining whether a storage battery is in a to-be-charged state according to a detected terminal voltage of the storage battery; according to the detected temperature of the storage battery and the detected environment temperature, the duty ratio of positive pulse width modulation in the positive and negative pulse charging mode during charging of the storage battery is determined, and the charging voltage in the intermittent floating charging mode during charging of the storage battery is determined. According to the storage battery charging control method, the positive and negative pulse charging mode and the intermittent floating charging mode are adopted, the problem that an existing automobile storage battery charging method is single in charging mode is solved, and the charging efficiency of the storage battery is improved.

    本申请实施例提供了一种蓄电池充电控制方法、系统及电动汽车。该蓄电池充电控制方法,根据检测到的蓄电池的端电压,确定蓄电池是否处于待充电状态;并根据检测到的蓄电池的温度以及检测到的环境温度,确定蓄电池充电时的正负脉冲充电模式中正脉冲脉宽调制的占空比,以及确定蓄电池充电时的间歇浮充充电模式中的充电电压。本申请实施例的蓄电池充电控制方法,采用正负脉冲与间歇浮充两种充电模式,解决现有汽车蓄电池充电方法存在的充电模式单一的问题,提高了蓄电池的充电效率。


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    Title :

    Storage battery charging control method and system and electric vehicle


    Additional title:

    蓄电池充电控制方法、系统及电动汽车


    Contributors:
    GUO YUHUI (author)

    Publication date :

    2021-10-12


    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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