Electro Chromic Inside Rear View Mirror: Overview Kia Forte I

Description

The ECM (Electro Chromic inside rear view Mirror) is for dimming the reflected light from following vehicles' headlights, in order to prevent the driver's eyes from being strained by the glare. The front-looking sensor detects the brightness of the surroundings, while the rearward-looking sensor detects the strength of the reflected light. The mirror adjusts its reflectiveness in the range of 10~70%, based on readings from the sensors. When the reverse gear is engaged, it adjusting feature stops functioning.

Scheme 137

1. 2. OEC+, 7. OEC-, 8. GND
2. 9. Reverse inhibit, 10. IGN

Scheme 138

Scheme 139

1. The front looking sensor sees if the brightness of the surroundings is low enough for the mirror to operate its adjustment function.
2. The rearward looking sensor detects glaring of the reflecting light from a vehicle behind.
3. The ECM is darkened to the level as determined by the rearward looking sensor. When the glaring is no longer detected, the mirror stops the adjustment function. (1. Status indicator LED, 2. Button, 3. Rear indicator, 4. Front light sensor, 5. Front light sensor)