The invention relates to the field of electric vehicles, in particular to a reservation heat preservation control method and system for a power battery of an electric vehicle. The method comprises the following steps: S1, judging whether a reservation heat preservation function is set or not, if so, entering the step S2, and if not, ending the process; s2, judging whether the heat preservation starting time is up or not, if yes, entering the step S3, and if not, continuing to wait in the step S2; s3, judging whether the vehicle state information meets a heat preservation activation condition or not, if yes, entering a step S4 to start battery heat preservation, and if not, ending the process; s4, controlling a battery heating function to be turned on and turned off according to the battery temperature; and S5, judging whether the heat preservation end time is up or not, if so, exiting the process, and if not, entering the step S4. Battery heat preservation is planned based on the vehicle using time, extra electricity consumption can be effectively reduced, expenses are reduced, and the power performance and the low-temperature cruising ability of the vehicle are improved.

    本发明涉及电动汽车领域,更具体的说,涉及一种电动汽车动力电池预约保温控制方法及系统。本方法,包括:步骤S1、判断是否设置预约保温功能,如果是,则进入步骤S2,如果否,则结束流程;步骤S2、判断保温启动时间是否到达,如果是,则进入步骤S3,如果否,则在步骤S2继续等待;步骤S3、判断车辆状态信息是否满足保温激活条件,如果是,则进入步骤S4启动电池保温,如果否,则结束流程;步骤S4、根据电池温度控制电池加热功能开启及关闭;步骤S5、判断保温结束时间是否达到,如果是,则退出流程,如果否,则进入步骤S4。本发明基于用车时间规划电池保温,可有效降低额外电量消耗,减少费用花销,提升车辆的动力性能以及低温续航能力。


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    Title :

    Reservation heat preservation control method and system for power battery of electric vehicle


    Additional title:

    一种电动汽车动力电池预约保温控制方法及系统


    Contributors:
    QIU JIANKUN (author)

    Publication date :

    2022-09-13


    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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