| 摘要 |
PURPOSE:To prevent a large change of blow air temperature, by changing temperature of air after its passing through a heater core with temperature of air after its passing through an evaporator as a variable and determining the opening degree of an air mixing damper. CONSTITUTION:An air conditioning device for a vehicle is operated in such a manner that inside and outside air intake ports 2 and 3 are suitably adjusted by a selector damper 4 to introduce air and the air passes through an evaporator 15 and heater core 20 to blow from blow ports 6, 7, 10 after adjustment of its temperature. Here using a microcomputer 24, firstly on the basis of detecting temperature Te of a blow air temperature sensor 29, temperature Th of air passing through the heater core 20 is calculated, secondly on the basis of preset temperature of a temperature setter device 25, detecting temperatures of an outside temperature sensor 26 and room temperature sensor 27, and output of a solar radiation amount sensor 28, target blow air temperature Tt is calculated. Then in case of Tt/Th, the opening degree of an air mixing damper 21 is controlled on the basis of a compared result of Tt with Te. |
