METHOD OF CONTROLLING VEHICLE INTERIOR VENTILATING DEVICE

摘要

PURPOSE: To adapt a switching threshold in accordance with instantaneous contamination concentration in outside air and interior air by detecting CO2 interior concentration as a scale quantity against the concentration of contamination in interior air and comparing CO2 interior concentration with the concentration of contamination in outside air. CONSTITUTION: A ventilation device is operated by depending on the concentration of contamination in outside air and interior air. CO2 interior concentration K(t) is detected as a scale quantity against the concentration of contamination in interior air and COs interior concentration K(t) is compared with the concentration S(t) of contamination in outside air. A first control signal for opening an outside air introduction part and a second control signal for closing the outside air introduction part are generated based on the comparison of CO2 interior concentration K(t) and the concentration S(t) of contamination in outside air.