The invention discloses a quick-charging heating control method for an electric automobile at low temperature, which comprises the following steps: detecting the temperature of a battery after the quick-charging preparation of the automobile is finished, and judging the temperature state of the battery according to the temperature of the battery, wherein the temperature state of the battery comprises a charging-only non-heating temperature state, a heating-while-charging temperature state and a heating-only non-charging temperature state; and allowing a BMS to correspondingly control the starting states of heating and charging of the battery according to the temperature state of the battery. The method has the advantages that the temperature state of the battery is set, three temperature state intervals are set, and different temperature control strategies are set for different temperature intervals, so that the quick-charging time is shortened in a low-temperature environment, and the automobile use experience of a user is improved; in a low-temperature environment, the low-temperature charging service time of the lithium battery is shortened, and battery attenuation caused by low temperature is reduced as much as possible.
本发明公开了一种电动汽车低温下的快充加热控制方法,包括如下步骤:在车辆快充准备完成后,检测电池的温度,根据电池的温度判断电池温度状态,电池的温度状态包括只充电不加热温度状态、边加热边充电温度状态、只加热不充电温度状态;BMS根据电池所处的温度状态对应的控制电池的加热、充电的开启状态。本发明的优点在于:对电池温度状态进行设置,设置三种温度状态区间,不同的温度区间设置不同的温度控制策略,从而实现在低温环境下,缩短快充充电时间,提升用户用车体验;低温环境下,减少锂电池低温充电使用时间,尽可能减少低温导致的电池衰减。
Quick-charging heating control method for electric automobile at low temperature
一种电动汽车低温下的快充加热控制方法
01.02.2022
Patent
Elektronische Ressource
Chinesisch
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