| 摘要 |
A sensor system (24) for controlling a ventilation unit (22) of a vehicle (20) includes a sensitivity selector (70) for enabling a user to select a setting (76) corresponding to an air quality threshold (94, 98), and an air quality sensor (62) proximate an exterior of the vehicle (20) for detecting an air quality parameter (71). A controller (66) is responsive to the selector (70) and the sensor (62), and is in communication with an inlet air valve (32) of the ventilation unit (22). A method (118) of operating the sensor system (24) entails receiving a current value of the air quality parameter (71) at the controller (66) for comparison with the air quality threshold (94, 98). The controller (66) generates a switch signal (74) in response to the comparison for adjusting the inlet air valve (32) between an outside air mode (44) and a recirculation mode (46). |
