| 摘要 |
PROBLEM TO BE SOLVED: To secure excellent relation between the fuel economy of a vehicle and air conditioning in a cabin against an instruction to prefer fuel economy. SOLUTION: While the fuel cut of an engine is performed when an eco-switch is turned on with an accelerator turned off, a load (duty ratio) on the compressor of an air conditioner is set to 100% (S250). When a vehicle speed V is reduced to less than a threshold Vref4 smaller than a threshold Vref3 obtained when the eco-switch is turned off, a load (duty ratio) on the compressor of the air conditioner is set to 0% (S260). A duration in which a load (duty ratio) on the compressor is set to 100% can be increased more than in the case when the eco-switch is turned off, and more kinetic energy of the vehicle can be stored in a refrigerating cycle. Consequently, though the comfortableness of air conditioning in the cabin may be slightly impaired, the fuel economy of the vehicle can be improved. COPYRIGHT: (C)2008,JPO&INPIT
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