| 摘要 |
PURPOSE: A controller of a door of an air duct of an automobile is provided to keep cozy indoor environment. CONSTITUTION: An automatic mode selecting button(16) is installed on a control panel(1) and connected with an electronic control unit(2). An indoor temperature sensor(6), an outdoor temperature sensor(7), a car speed sensor(8) and a wind direction sensor(9) are connected to an input end of the electronic control unit, respectively. The electronic control unit controls driving of a motor(4) correspondingly with car speed, wind direction and indoor temperature so that a door(33) of an air duct(3) automatically shuts one of an indoor air inlet and an outdoor air inlet when a driver operates the automatic mode selecting button.
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