The invention provides a charging method for a starting battery of an electric vehicle and a charging control device, and the charging method comprises the steps: starting a DCDC converter when the current voltage of the starting battery of a target electric vehicle is smaller than a voltage threshold value, and transmitting the electric quantity of a power battery to the starting battery through the DCDC converter to carry out the charging of the starting battery, in the charging process, the charging electric quantity received by the starting battery is obtained in real time; determining whether the recharging electric quantity reaches a recharging electric quantity threshold value or not; if yes, stopping charging the starting battery by the power battery; and if not, continuing to charge the starting battery until the charge electric quantity of the starting battery reaches the charge electric quantity threshold value. By adopting the technical scheme provided by the invention, the on-off of the DCDC converter can be controlled by determining the charging electric quantity threshold value, the charging control on the starting battery is realized, and the power supply performance of the electric vehicle is improved.

    本申请提供了一种电动车辆的启动电池的补电方法以及补电控制装置,所述补电方法包括:在目标电动车辆的启动电池的当前电压小于电压阈值时,开启DCDC转换器,将动力电池的电量通过DCDC转换器发送给启动电池以对启动电池进行补电,并在补电过程中实时获取启动电池接收到的补电电量;确定补电电量是否达到补电电量阈值;若是,则停止动力电池对启动电池补电;若否,则继续对启动电池补电,直至启动电池的补电电量达到补电电量阈值。采用本申请提供的技术方案能够通过确定补电电量阈值,从而控制DCDC转换器的开关,实现对启动电池的补电控制,提高了电动车辆的供电性能。


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    Title :

    Charging method and charging control device for starting battery of electric vehicle


    Additional title:

    一种电动车辆的启动电池的补电方法以及补电控制装置


    Contributors:
    YAN QUANZHONG (author) / LI JIECHEN (author)

    Publication date :

    2022-08-30


    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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