TEMPERATURE CONTROL METHOD AND DEVICE IN A MOTOR VEHICLE PASSENGER COMPARTMENT

摘要

The invention concerns a method which consists in providing the passenger compartment (H) with calories derived from a hot reservoir (18) of a heat pump (12) comprising a refrigerant fluid circuit (14) drawing calories from a cold reservoir (16) to transfer them to the hot reservoir (18). At the cold reservoir (16) calories derived from a recycled air stream from the passenger compartment are drawn. The cold reservoir (16) comprises a refrigerant fluid/heat transfer liquid thermal exchanger (24) thermally coupling the main circuit (14) to a first heat transfer liquid auxiliary circuit (26) capable of being selectively connected to an external heat exchanger (30) and a cold thermal exchanger (32). Air stream circuits comprise an intake for recycled air from the passenger compartment, an air outlet to the outside of the vehicle, first means for connecting the recycled air intake upstream of the cold thermal exchanger (32) and second means for connecting downstream of said cold thermal exchanger (32) to the external outlet.