The invention relates to the technical field of electric automobiles, and provides an automobile charging energy management method and device and an electric automobile. The method comprises the steps that when an automobile is in a charging mode and in a stopped state, the energy source type of automobile charging is recognized; acquiring real-time energy consumption information fed back by a low-pressure system and a thermal management system on the automobile; based on the real-time energy consumption information and the energy source type, the current charging scene of the automobile is determined, the charging scene comprises a preheating scene before alternating current charging, an alternating current charging scene, a preheating scene before direct current charging and a direct current charging scene, and at least one energy management strategy is preset in each charging scene; and managing and controlling the energy consumption of the low-voltage system and the thermal management system based on the energy management strategy corresponding to the current charging scene of the automobile. The method is used for automobile charging energy management, it is guaranteed that the battery electric quantity is not reduced when the automobile is charged at low electric quantity, and the confusion and electric quantity anxiety that the electricity is charged more and less are avoided for a user.

    本申请涉及电动汽车技术领域,提供了一种汽车充电能量管理方法、装置和电动汽车。该方法包括:当汽车处于充电模式且汽车处于停止状态时,识别汽车充电的能源来源类型;获取汽车上低压系统与热管理系统反馈的实时能耗信息;基于所述实时能耗信息与能量来源类型,确定汽车当前所处的充电场景,所述充电场景包括交流充电前预热场景、交流充电场景、直流充电前预热场景和直流充电场景,其中,每个充电场景预设有至少一个能量管理策略;基于汽车当前所处充电场景对应的能量管理策略,对所述低压系统和热管理系统的能耗进行管控。本申请用于汽车充电能量管理,保证车辆在低电量充电时电池电量不会下降,避免为用户带来电越充越少的疑惑和电量焦虑。


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    Title :

    Automobile charging energy management method and device and electric automobile


    Additional title:

    一种汽车充电能量管理方法、装置和电动汽车


    Contributors:
    CAO HONGSHENG (author) / CHEN YI (author) / WANG ZIQIANG (author) / SHI HEDI (author) / ZHOU ZHENGWEI (author) / ZHANG HONGJIAN (author)

    Publication date :

    2023-10-27


    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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