| 摘要 |
PROBLEM TO BE SOLVED: To suppress fogging of a windshield while suppressing electric power consumption.SOLUTION: An air conditioner 20 of an electric vehicle includes a refrigerating cycle 40 that can operate in a heat-pump manner. The air conditioner 20 includes a window heater 10 as one of electric appliances suppressing fogging of a windshield 9 by electric power. When fogging possibility of the windshield 9 is higher than a first threshold RHL, the refrigerating cycle 40 is operated in the heat -pump manner. The heat-pump operation suppresses fogging with relatively small electric power consumption. Under the operation in the heat-pump manner, the fogging possibility possibly becomes further higher. When the fogging possibility is higher than a second threshold RHH, the window heater 10 is activated. As a result, the window heater 10 having big electric power consumption is activated only when the fogging possibility is high conspicuously. The fogging possibility can be indicated by a relative humidity RHW detected by a dew condensation sensor 62. |
