Patent ID: 8641490

Claim:
A vehicle air recirculation control device comprising: a thermal sensing arrangement configured to measure a temperature to detect existence of a prescribed temperature condition based on the measured temperature; a blower speed sensing arrangement configured to provide a prescribed blower signal indicative of a prescribed blower speed condition of a vehicle blower; a recirculation door actuator configured to operate a recirculation door to switch between a normal air intake mode and a recirculation override mode; and a control device operatively connected to the thermal sensing arrangement, the blower speed sensing arrangement and the recirculation door actuator, the control device being configured to selectively activate the recirculation door actuator to switch between the normal air intake mode and the recirculation override mode in response to the prescribed temperature condition being detected by the thermal sensing arrangement and the prescribed blower signal being received from the blower speed sensing arrangement, the control device being further configured to activate the recirculation door actuator to achieve the recirculation override mode in response to the blower speed sensing arrangement providing the prescribed blower signal indicative of the vehicle blower being operated above a prescribed speed.