The invention discloses a vehicle charging method and device, a battery management system and a storage medium. The method comprises the steps that under the condition that the whole vehicle load current of a vehicle cannot be obtained, a charging pile is controlled to charge the vehicle based on initial charging request current, and the initial charging request current is determined according to a battery of the vehicle; after the charging pile charges the vehicle according to the initial charging request current, the bus current of the vehicle is obtained; target charging request current is determined according to the bus current and the initial charging request current, and the actual charging current of the battery is matched with the initial charging request current when the charging pile charges the vehicle according to the target charging request current; and controlling the charging pile to charge the vehicle based on the target charging request current. The technical problem that the optimal charging efficiency cannot be achieved due to power consumption of the vehicle load when the electric vehicle is charged is solved.

    本发明公开了一种车辆充电方法、装置、电池管理系统及存储介质。其中,该方法包括:在无法获取车辆的整车负载电流的情况下,控制充电桩基于初始充电请求电流对车辆进行充电,其中,初始充电请求电流根据车辆的电池确定;在充电桩根据初始充电请求电流向车辆充电后,获取车辆的母线电流;根据母线电流和初始充电请求电流,确定目标充电请求电流,其中,充电桩根据目标充电请求电流为车辆充电时电池的实际充电电流与初始充电请求电流匹配;控制充电桩基于目标充电请求电流对车辆进行充电。本发明解决了为电动汽车充电时由于车辆负载耗电导致无法达到最佳充电效率的技术问题。


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    Title :

    Vehicle charging method and device, battery management system and storage medium


    Additional title:

    车辆充电方法、装置、电池管理系统及存储介质


    Contributors:
    MA PEIYI (author) / ZHU CHENG (author) / HU QINGSONG (author) / JI XUEBIN (author) / HU PANPAN (author)

    Publication date :

    2023-09-12


    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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