| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle air-conditioning device capable of satisfying both of preventing frost formation from progressing when setting a pre-air-conditioning and ensuring heat sensation when getting on a vehicle.SOLUTION: An air-conditioning device ECU 50 performs separately: usual air-conditioning of air- conditioning a vehicle interior while running a vehicle by controlling refrigerant flow of a heat pump cycle 10; pre-air-conditioning of air conditioning the vehicle interior when the vehicle is stopped and before a crew member gets in the vehicle; and a defrosting operation of eliminating frost formed on an outdoor heat exchanger 16. When the usual air conditioning is set, the air-conditioning device ECU 50, if predetermined conditions for the usual air-conditioning and defrosting operation are satisfied, performs the defrosting operation. When pre-air-conditioning is set, the ECU 50, if predetermined conditions for the pre-air-conditioning and defrosting operation are satisfied, performs the defrosting operation. The conditions for the pre-air-conditioning and defrosting operation are set so that they are satisfied in the situation that frost formation progresses further than frost formation under the conditions for the usual air conditioning and defrosting operation. |
