The invention relates to a method for operating a heat pump in a motor vehicle, particularly a hybrid or electric vehicle, wherein the heat pump has a refrigeration circuit having at least - one refrigerant condenser for condensing a refrigerant to a high pressure pHD, wherein the high pressure pHD results from environmental conditions and a vehicle state, - a heat exchanger for transferring thermal energy from the refrigerant to an air mass flow for a vehicle interior, in order to provide a target heat flow, - an expansion element, and - an evaporator, distinguished by the following steps: (a) determining a potential or actual reduction of the high pressure pHD from the environmental conditions and the vehicle state, which results in the target heat flow not being achieved, and (b) increasing the high pressure pHD by means of a reduced flow cross-section in the expansion element, such that the target heat flow is achieved.
VERFAHREN ZUM BETREIBEN EINER WÄRMEPUMPE
METHOD FOR OPERATING A HEAT PUMP
PROCÉDÉ PERMETTANT DE FAIRE FONCTIONNER UNE POMPE À CHALEUR
2022-06-15
Patent
Electronic Resource
German
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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