The system is included in the standard gradation «SOL».
The system uses 2 sensors mounted on the interior rearview mirror. Sensors detect the difference between the intensity of the light falling on the rear mirror and the outside light in the vehicle interior.
Pic. 1.57. Electrochromic mirror
When switching the power system from «Off». («OFF») in IG-ON·mode, the system always turns on in automatic mode (pic. 1.57).
Pic. 1.58. System block diagram
Electrochromic mirror cell
Pic. 1.59. Electrochromic mirror cell
An electrochromic cell consists of two layers of glass with electrochromic elements in between. Due to the electrochemical reaction, electrochromic elements change their color characteristics. These features provide electronic control of the reflectance of the mirror (pic. 1.59).
Reflection control
Pic. 1.60. Reflection control circuit
The processor determines the intensity of the outside light from the signal from the outside light sensor, and the intensity of the light falling on the rear mirror from the signal from the light sensor from the rear. The processor determines the time of day by the intensity of outside light (day or night). At the same time, the intensity of the glare is determined from the difference between the intensity of the outside light and the light falling on the mirror from behind. Depending on the intensity of the light falling on the mirror from behind, the reflectance of the mirror changes in steps (pic. 1.60).