The invention provides a method for controlling a heating device by disconnecting a relay and an automobile, and the method comprises the following steps: S1, judging whether working condition information meets a preset charging triggering condition or not; s2, the high-voltage loop relay is controlled to enter a pre-charging mode, and whether pre-charging succeeds or not is judged; when pre-charging succeeds, the battery management module is controlled to enter a charging mode; s3, when the vehicle enters the charging mode, the battery management module detects whether the temperature of the power battery is lower than a preset rapid heating low-temperature threshold value or not and detects whether the state of the whole vehicle meets the requirement of entering the rapid heating mode or not; s4, the battery management module controls to start a rapid heating device and enters a rapid heating mode; and S5, when the battery temperature meets the preset working condition threshold value, the battery management module controls the high-voltage loop relay to turn off the rapid heating device, the rapid heating mode is quitted, and the normal charging mode is entered. Heating of the power battery is controlled through the high-voltage relay, and it is guaranteed that the rapid heating device is safely used under the fault condition.
本发明提供一种断继电器控制加热装置的方法及汽车,包括,步骤S1,判断该工况信息是否满足预设的触发充电条件;步骤S2,控制高压回路继电器进入预充电模式并判断预充电是否成功;当预充电成功时,电池管理模块控制进入充电模式;步骤S3,当进入充电模式时,电池管理模块检测动力电池温度是否低于预设的快速加热低温阈值,检测整车状态是否满足进入快速加热模式;步骤S4,电池管理模块控制开启快速加热装置,进入快速加热模式;步骤S5,当电池温度满足预设的工况阈值时,电池管理模块控制高压回路继电器关闭快速加热装置,退出快速加热模式进入正常充电模式。本发明通过高压继电器对动力电池的加热进行控制,保障故障下安全使用快速加热装置。
Method for controlling heating device by disconnecting relay and automobile
一种断继电器控制加热装置的方法及汽车
2023-04-14
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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