AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES

摘要

PURPOSE: An air conditioning system for a vehicle is provided to securely install a defog sensor on a place except for a vehicle glass by sensing the relative humidity of the vehicle glass. CONSTITUTION: An air conditioning system for a vehicle comprises a defogging device. The defogging device removes fog from a vehicle glass and comprises a defog sensor (20) and a control part (30). The defog sensor senses the relative humidity of the vehicle glass. The control part confirms whether the vehicle glass is fogged or not according to the sensed relative humidity of the vehicle glass. The defog sensor has a thermopile infrared sensor (24a), a lowest temperature extraction part (24b), a non-contact humidity sensing part (22), and a micom (26). The thermopile infrared sensor detects the temperature distribution of the vehicle glass by photographing the vehicle glass at a remote distance. [Reference numerals] (20) Defog sensor; (22) Humidity sensing part; (24) Temperature sensing part; (24a) Thermopile infrared sensor; (24b) Lowest temperature extraction part; (26) Micom; (30) Control part; (7) Compressor