DEW CONDENSATION DETECTING METHOD AND VEHICLE REAR AIR CONDITIONER APPLYING THIS DEW CONDENSATION DETECTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a dew condensation detecting method that can positively detect dew condensation on the outer surface as well as the inner surface, and provided a vehicle rear air conditioner applying this dew condensation detecting method. SOLUTION: The initial surface temperature of the window glass outer surface is presumed on the basis of outside air temperature detected by an outside air sensor 1 and the quantity of solar radiation detected by a solar radiation sensor 2, and the stable surface temperature of the outer surface is presumed on the basis of the initial surface temperature and the difference between the initial surface temperature and the detection value of an internal air sensor 3. On the other hand, dew-point temperature is presumed on the basis of the outside air temperature and outside air humidity detected by an outside air humidity sensor 4, and the presence of dew condensation on the window glass outer surface is presumed on the basis of the stable surface temperature and dew-point temperature.