Patent ID: 6892549
Filing Date: 2005-05-17
Classification: B60H,F25B

Abstract:
1. An air conditioner for a vehicle having an engine for running the vehicle, the air conditioner comprising: a refrigerant cycle including an air-conditioning control unit for controlling the displacement of the compressor based on a cooling load in the passenger compartment, wherein: the air-conditioning control unit outputs an engine drive signal for requiring a drive of the engine, and the compressor is driven by the engine, when the cooling load is larger than a predetermined value; the air-conditioning control unit prohibits an output of the engine drive signal when the cooling load is equal to or smaller than the predetermined value; and when the cooling load is larger than the predetermined value, the air-conditioning control unit controls the displacement of the compressor at a control value larger than a value controlled based on the cooling load, at least for a predetermined time.