The invention provides an electric vehicle storage battery charging control method and device. The method comprises the steps that a residual electric quantity value of a storage battery is monitoredin real time; when the residual electric quantity of the storage battery is lower than a first threshold value, a vehicle control unit is awakened; the vehicle control unit acquires the residual electric quantity value of the storage battery and the temperature value of the storage battery; whether the residual electric quantity value of the storage battery is lower than a second threshold value or not is determined, and if the residual electric quantity value of the storage battery is lower than the second threshold value, a storage battery controller is controlled to be powered on and a direct-current converter starts to charge the storage battery; otherwise, the vehicle control unit is controlled to enter a sleep state again. In the invention, a main controller is added to judge a temperature, and a threshold for starting charging is set according to an available capacity of the battery at the temperature so that the direct-current converter is started at different thresholds at different temperatures to charge the storage battery, and fine control is realized.

    本发明提供一种电动汽车蓄电池充电控制方法、装置,方法包括:实时监测蓄电池剩余电量值;当蓄电池剩余电量低于第一阈值时,唤醒整车控制器;整车控制器获取蓄电池剩余电量值以及蓄电池温度值;判断蓄电池剩余电量值是否低于第二阈值,若蓄电池剩余电量值低于第二阈值,则控制蓄电池控制器上电、直流变换器开始对蓄电池充电;否则,控制整车控制器重新进入睡眠状态。本发明增加主控制器对温度进行判断,根据在该温度下电池的可用容量设置开启补电的阈值,实现在不同温度下以不同的阈值开启直流变换器为蓄电池补电,实现精细化控制。


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    Title :

    Electric vehicle storage battery charging control method and device


    Additional title:

    电动汽车蓄电池充电控制方法及装置


    Contributors:

    Publication date :

    2020-10-30


    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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