AIR CONDITIONING DEVICE FOR VEHICLE

PURPOSE:To suppress an uncomfortable feeling, by increasing an air mixing door opening and blower fan voltage while holding cooling force to a fixed level after a difference between a target temperature and an in-car room temperature decreases to a predetermined value or less. CONSTITUTION:A device, inputting a target temperature T1, in-car room temperature T2, outside air temperature T3 and a solar radiation amount T4 to a control circuit 17 respectively from sensors 1, 3-5, controls an opening of an air mixing door 7 and voltage of a blower fan 6 in accordance with a predetermined program. And if the crew controls a trimmer 15 in order to increase a blown air temperature, a regulator circuit 16 outputs a regulating signal St so as to increase by stages an air mixing door opening X and blower fan applied voltage VB. Here the device, before the in-car room temperature T2 approaches the target temperature T1 with the blower fan voltage decreasing to the minimum value, suppresses an output of the regulating signal St even if the trimmer 15 is controlled. By this constitution, an uncomfortable feeling can be prevented.