| 摘要 |
PURPOSE:To prevent air-conditioning from being deteriorated during demisting operation controlled by a vehicle demisting control device, by measuring the humidity of inner surface of a windshield pane for every predetermined time during demisting operation, and by controlling the adjustment of demisting capacity in accordance with the previously measured value and the present measured value. CONSTITUTION:During demisting control, whether demisting operation is required or not is determined in accordance with humidity data from a dew sensor 26, data from a wiper and the like. During the demisting operation being required, the humidity data are read and stored in memory at predetermined intervals while the previous humidity is compared with the present humidity so that whether the demisting capacity is increased or decreased is determined. If it is increased, a compressor 22 is driven, an intake door 7 is operated and so forth. On the contrary, if it is reduced, the capacity of demisting operation is reduced similarly in accordance with the outside temperature. With this arrangement, it is possible to prevent the air-conditioning from being deteriorated during demisting operation. |
