Thermal management method and device of battery pack

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Thermal management method and device of battery pack

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LI JUN / ZHANG YONG / ZHANG YULONG / ZHANG JIACHANG / ZHOU LIN

One or more embodiments of the invention provide a thermal management method and device for a battery pack. The method comprises the following steps: acquiring a vehicle using time set by a user; calculating the lowest temperature reached by the temperature of the battery pack of the vehicle before the heater of the vehicle is started, and starting the heater of the vehicle to heat the battery pack so as to heat the temperature of the battery pack from the lowest temperature to the optimal temperature; and on the basis of the temperature rising duration, the starting moment when the heater is started in advance to heat the battery pack before the vehicle using moment is calculated. Therefore, the most reasonable starting time can be calculated, and the temperature of the battery pack is just increased to the optimal temperature as far as possible at the vehicle using time, so that energy conservation and environmental protection can be realized, and the battery pack can work in the optimal state.

本说明书一个或多个实施例提供一种电池包的热管理方法及装置。该方法包括：获取用户设定对车辆的用车时刻；计算在开启所述车辆的加热器前所述车辆的电池包的温度所达到的最低温度，以及开启所述车辆的加热器对所述电池包进行加热，以将所述电池包的温度从所述最低温度加热到最佳温度所需的温度上升时长；基于所述温度上升时长，计算在所述用车时刻之前提前开启所述加热器对所述电池包进行加热的开启时刻。据此，可以计算出最合理的开启时刻，尽可能得在用车时刻将将电池包的温度正好加热到最佳温度，从而即可以实现节省环保，又能够让电池包工作在最佳的状态。