The invention provides an internal and external circulation control circuit and method for an automobile air conditioning system, the control circuit comprises a first circuit, a driving circuit and a switch piece, one end of the first circuit is connected with an automobile positive electrode power line, and the first circuit is grounded through the switch piece and an internal and external circulation motor of an automobile; the driving circuit is used for automatically controlling the on-off of the switch part according to the air quality condition in the vehicle; when the switch piece is switched on, the internal and external circulation motor is powered on to start operation, and when the switch piece is switched off, the internal and external circulation motor is powered off to stop operation. According to the method, automatic control over starting and stopping of the internal and external circulation motor can be achieved, then automatic switching of the internal circulation mode and the external circulation mode of the automobile air conditioner system is achieved, manual switching operation of a driver is omitted, the driving safety is effectively improved, and fatigue of the driver is well avoided.
本发明提供了一种汽车空调系统内外循环控制电路及控制方法,其中该控制电路包括第一线路、驱动电路、开关件,所述第一线路的一端与汽车正极电源线相连,所述第一线路经所述开关件、车辆的内外循环电机接地;所述驱动电路用于根据车内的空气质量情况对所述开关件的通断进行自动控制;在开关件导通时,内外循环电机通电而启动运行,在开关件断开时,内外循环电机断电而停止运行。本发明能够实现对内外循环电机启停的自动控制,进而实现了对汽车空调系统内循环和外循环模式的自动切换,省去了驾驶员的手动切换操作,有效地提高了行车安全性,较好地避免了驾驶员疲劳。
Internal and external circulation control circuit and control method of automobile air conditioning system
一种汽车空调系统内外循环控制电路及控制方法
2023-09-19
Patent
Electronic Resource
Chinese
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |
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