A control unit for an air conditioning system for a motor vehicle
calculates a target blowing air temperature based on a temperature of a
passenger's clothing detected by a no contact temperature sensor. An air
conditioning operation is performed based on the calculated target
blowing air temperature. In particular, when calculating the target
temperature in the summer or in the winter season, a change of the
detected temperature of the passenger's clothing is used, so that the
change of detected temperature is reflected in the target temperature
with a time delay.