| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular air-conditioning system capable of balancing between a quick warm-up of an internal combustion engine and maintaining of a heating function.SOLUTION: An air-conditioning system includes an air-conditioning channel 21, an evaporator 23, a heater core 24, a compressor 27, an air-mix door 33, an electronic control unit 40, an air-conditioning switch 48, and a temperature setup switch 47. At a turn-off operation of the air-conditioning switch 48, the electronic control unit 40 closes air-mix door 33 if a temperature of an engine coolant is less than an execution temperature, while if the temperature of the engine coolant is equal to or higher than the execution temperature, executes open-close control of the air-mix door 33 on the basis of a target temperature.SELECTED DRAWING: Figure 1 |
