The system is included in the standard "SOL" gradation.
The system uses two sensors mounted on the interior rearview mirror. The sensors detect the difference between the intensity of light falling on the mirror from behind and the outside light in the car.
Fig. 1.57. Electrochromic mirror
When switching the power system from " Off " mode. ("OFF") in IG-ON mode, the system is always turned on automatically (Figure 1.57).
Fig. 1.58. Block diagram of the system
Electrochromic mirror cell
Fig. 1.59. Electrochromic mirror cell
The electrochromic cell consists of two layers of glass, between which electrochromic elements are located. Due to an electrochemical reaction, the electrochromic elements change their color characteristics. These characteristics provide electronic control of the mirror's reflectivity (Fig. 1.59).
Reflectivity control
Fig. 1.60. Reflectivity control circuit
The processor determines the intensity of the outside light from the signal of the outside light sensor, and the intensity of the light falling on the rear mirror from the signal of the rear light sensor. Based on the intensity of the outside light, the processor determines the time of day (day or night). At the same time, the intensity of the glare is determined by the difference in 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 reflection coefficient of the mirror changes stepwise (Fig. 1.60).
Table 1.25. Purpose of the main components of the electrochromic mirror
