Air conditioning system for passenger compartment of car, has electronic management unit to compare value obtained using additional parameter with threshold value mapped based on interior and outside temperatures, and vary position of flap

摘要

The system (1) has a motorized flap (13) that is adjustable between open and closed positions in a step by step manner. An electronic management unit (10) varies a position of the flap in a continuous manner according to outside temperature (Text) of a vehicle, interior temperature (Tint) of the vehicle and additional parameter of the vehicle. The management unit compares a value obtained using the additional parameter with a threshold value mapped based on values of the interior and outside temperatures. The additional parameter is chosen from a speed (V) of the vehicle, detected number of occupants in the vehicle, carbon dioxide level measured by a carbon dioxide level sensor (17) e.g. infrared sensor, in a passenger compartment of the vehicle, and a moisture content measured by a humidity sensor (18) e.g. resistive sensor. An independent claim is also included for a method for ventilating a passenger compartment of a car.