Patent ID: 6363732
Filing Date: 2002-04-02
Classification: B60H

Abstract:
An additional heating system for a motor vehicle comprising:a heating/air-conditioning unit (1) of the motor vehicle comprising a compressor (16) driven by an electric motor (17) and arranged in a refrigerating circuit (18) carrying a refrigerant; wherein the compressor (16) comprises a switching device (20) for switching from the refrigerating circuit (18) to a heating bypass (39) and back again; and wherein the heating bypass (39) diverts the refrigerant that flows at least partially around the electric motor (17) and/or at least the power components (30) of power electronics (29) controlling the electric motor (17) so as to release the absorbed heat generated by the power dissipation of the electric motor (17) and/or the power components (30) to the interior (34) of the vehicle.