The invention relates to a method for controlling the refrigerant pressure in an ambient heat exchanger of a refrigerant circuit, particularly a heat pump circuit, for vehicles, wherein the current temperature of the ambient air is measured by means of a temperature sensor and the current humidity of the ambient air is measured by means of a humidity sensor, the current dewpoint temperature of the ambient air is determined or estimated from the temperature of the ambient air and the humidity of the ambient air, and at a temperature of the ambient air less than 0 DEG C, the refrigerant pressure in the refrigerant circuit is regulated in such a manner that the temperature of the ambient heat exchanger is greater than the dewpoint temperature, by adjusting o the rotational speed of a refrigerant compressor in the refrigerant circuit and/or o the flow cross-section of a controllable expansion member in the refrigerant circuit and/or o the ambient air volume flow flowing around or through the ambient temperature heat exchanger.


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    Title :

    Method for controlling the refrigerant pressure in an ambient heat exchanger of a refrigerant circuit


    Contributors:

    Publication date :

    2015-04-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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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