The invention discloses a power battery thermal management method, device and equipment and a medium, and the method comprises the steps: determining preset temperature change energy consumption required for changing the temperature of a power battery from the current temperature to a target temperature if it is detected that a vehicle has a charging intention and the current temperature of the power battery of the vehicle is not in a preset temperature range; determining the basic energy consumption of the vehicle within a preset duration; and if the preset temperature change energy consumption, the basic energy consumption and the current remaining electric quantity of the power battery meet the preset relation, the heat exchange equipment is controlled to change the temperature of the power battery from the current temperature to the target temperature before the preset charging moment. According to the invention, it can be ensured that the power battery can be at an appropriate working temperature during charging, on one hand, it can be ensured that the charging effect in the charging process is relatively good, such as shortening the charging time and improving the charging capacity, and on the other hand, the probability of thermal runaway of the power battery in the charging process can be reduced; and the safety in the charging process is improved.

    本发明公开了一种动力电池热管理方法、装置、设备和介质,包括:若检测到车辆有充电意图,且车辆的动力电池的当前温度未处于预设温度范围内,确定动力电池的温度由当前温度改变至目标温度所需的预设温变能耗;确定车辆在预设时长内的基本能耗;若预设温变能耗、基本能耗以及动力电池的当前剩余电量满足预设关系,控制换热设备在预设充电时刻之前将动力电池的温度由当前温度改变至目标温度。本发明可以保证动力电池在充电时能够处于合适的工作温度,一方面可以保证充电过程中的充电效果较好,比如缩短充电时间,提高充电容量等,另一方面也可以降低动力电池在充电过程中的热失控现象的发生几率,提高充电过程中的安全性。


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    Title :

    Power battery thermal management method, device, equipment and medium


    Additional title:

    一种动力电池热管理方法、装置、设备和介质


    Contributors:
    DU XIN (author) / LI TAO (author) / WANG YANG (author) / LIU ZHENYONG (author) / HUANG MIN (author)

    Publication date :

    2023-09-05


    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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