| 摘要 |
In a vehicular air conditioner which controls an output refrigerant pressure of a radiator by adjusting a decompression amount in an expansion valve, an air conditioning ECU calculates a target refrigerant pressure using a refrigerant temperature detected by a temperature sensor, a vehicle speed detected by a vehicle speed detector, and a control equation defined for calculating the target refrigerant pressure, and adjusts an opening of an expansion valve by a decompression amount corresponding to the target refrigerant pressure.
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