Method and device for dimming car window

The invention relates to the field of the automotive electronic technology, and particularly relates to a method and device for dimming a car window. The method is applied to a car window dimming system, on which a dimming film is provided. The method comprises the steps of: generating a first control command during the driving process of the car if a triggering operation for confirming the driving environment around the car is detected; and controlling the dimming film in a transparent state based on the first control command. The triggering operation is any one of emergency braking, steeringby controlling a steering wheel, engaging a reverse gear, opening a fog light and opening a dipped headlight. The method provided by the invention is convenient for the driver and the passengers in the car to clearly see the driving environment around the car, and improves the driving safety. 本发明涉及汽车电子技术领域，尤其涉及一种车窗调光方法及系统，该方法应用于车窗上有调光膜的车窗调光系统中，该方法包括：在车辆行驶过程中，若检测到需要确认车辆周围的行车环境的触发操作时，生成第一控制指令，所述触发操作具体为如下任意一种：紧急刹车、控制方向盘转向、挂