An environmental control system for a vehicle

The vehicle enviromental control system, is used to limit the vehicle windshield inner part of the Mongolian mist situation; the system comprises a windshield temperature sensor module (28), (32) for environment humidity sensor sleeve and second temperature sensor module (30) for detecting humidity sensor assembly (32) temperature. Windshield temperature sensor module (28) is rearview mirror bracket (10), a windshield inner surface (18) in matching manner, and second temperature and humidity sensor for mounting the rearview mirror shell (12); the shell is installed on the rearview mirror bracket (10) is.