The invention discloses a method and a device for quickly charging, heating and charging an electric vehicle by using a ternary lithium battery. According to the method, after a user inserts a charging gun of a quick charging pile into a vehicle-mounted quick charging seat and selects charging, the charging pile awakens a battery management system through a CC2 signal, the battery management system and the charging pile enter a handshake stage and perform interaction of a configuration stage, after no problem exists, the battery management system enters a distributable stage, the battery management system detects the temperature of all the single battery cells in the battery pack and selects to enter different working modes according to the detected temperature condition, and the battery management system detects whether the heating and charging process is abnormal, and stops heating or charging if the heating and charging process is abnormal. The method is advantaged in that a problemthat the ternary lithium battery electric vehicle cannot be quickly charged after being in an environment below 0 DEG C can be solved, and the heating current and the charging current are controlledat the same time, so the charging current is strictly controlled within the allowable range of the ternary lithium battery cell charging SOP meter, the charging process is accelerated, and damage to the battery is reduced.
本发明公开了一种使用三元锂电池的电动车快充加热充电方法及装置,所述方法中用户通过将快速充电桩的充电枪插入车载快充座并选择充电后,充电桩将通过CC2信号唤醒电池管理系统,电池管理系统将会与充电桩进入握手阶段并进行配置阶段的交互,无问题后进入可配电阶段;电池管理系统对电池组内的所有单体电芯温度进行检测,并根据检测的温度情况选择进入不同的工作模式;电池管理系统检测加热充电过程是否存在异常,若存在异常则停止加热或充电。本发明可解决三元锂电电动汽车处于0度以下环境后无法快速充电的问题,同时控制加热电流和充电电流,使充电电流严控在三元锂电电芯充电SOP表允许范围内又加快充电过程,减少对电池造成损害。
Quick-charging heating charging method and device for electric vehicle using ternary lithium battery
一种使用三元锂电池的电动车快充加热充电方法及装置
2020-09-08
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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