초록 ▼

The present invention balances power consumption reduction and a cooling in a vehicle air-conditioning system having a compressor selectively driven by a vehicle engine or a motor while the compressor is driven by the motor. At least one of a capacity of a blower and a capacity of a compressor arran

The present invention balances power consumption reduction and a cooling in a vehicle air-conditioning system having a compressor selectively driven by a vehicle engine or a motor while the compressor is driven by the motor. At least one of a capacity of a blower and a capacity of a compressor arranged in a refrigeration cycle R while the compressor being driven by a motor is reduced in comparison to the capacity of the blower and the capacity of the compressor while the compressor being driven by a vehicle engine. Furthermore, while a cooling heat load of an evaporator is greater than a predetermined value, the capacity of the compressor is first reduced prior to reducing the capacity of the blower.

대표청구항 ▼

1. A vehicle air conditioning system having a compressor arranged in a refrigeration cycle, wherein a drive source of said compressor is selectively changed between a vehicle engine and a motor depending on a running condition of a vehicle, said vehicle air conditioning system comprising:a blower fo

1. A vehicle air conditioning system having a compressor arranged in a refrigeration cycle, wherein a drive source of said compressor is selectively changed between a vehicle engine and a motor depending on a running condition of a vehicle, said vehicle air conditioning system comprising:a blower for blowing air toward an interior of said vehicle; and an evaporator arranged in said refrigeration cycle for cooling said air blown from said blower; wherein at least a blower capacity or a compressor capacity is reduced while said compressor is driven by said motor relative to a respective blower capacity or compressor capacity while said compressor is driven by said vehicle engine; and wherein said compressor capacity is first reduced prior to reducing said blower capacity while a cooling heat load of said evaporator is greater than a predetermined value.