The invention discloses a control method and system for internal and external circulation of an automobile air conditioner, and the control method comprises the steps: judging whether a vehicle meets an internal circulation switching condition, if yes, controlling the automobile air conditioner to be switched to an internal circulation state, and otherwise, controlling the automobile air conditioner to maintain a current state; and if the vehicle gear is the reverse gear, the automobile air conditioner is in an external circulation state, the automobile air conditioner is in a front defrosting mode, the air volume is equal to 0, or the automobile air conditioner is in a non-front defrosting mode, and the reverse gear duration time is larger than or equal to the preset time threshold value t, it is indicated that the internal circulation switching condition is met. The air quality of the passenger compartment can be improved under the condition that safe reversing of the vehicle is guaranteed.

    本发明公开了一种汽车空调内外循环的控制方法及控制系统,所述控制方法为:判断车辆是否满足内循环切换条件,如果是,则控制汽车空调切换到内循环状态,否则控制汽车空调维持当前状态;其中,若同时满足车辆挡位为倒车挡,且汽车空调处于外循环状态,且汽车空调处于前除霜模式且风量等于0或者汽车空调处于非前除霜模式,且倒车挡持续时间大于或等于预设的时间阈值t,则表示满足内循环切换条件。本发明能在保证车辆安全倒车的条件下,提升乘员舱的空气质量。


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    Title :

    Control method and control system for internal and external circulation of automobile air conditioner


    Additional title:

    一种汽车空调内外循环的控制方法及控制系统


    Contributors:
    HOU XIAOBO (author) / XIA YONGFENG (author)

    Publication date :

    2021-08-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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