Principles of Operation
The functions of the high beam assistant (FLA) relevant to the driver are automatic activation of the high beam and low beam settings. For this purpose, the high beam assistant sends a recommendation to switch on or switch off high beam via the K-CAN bus to the lights module.
This recommendation is always sent (also during daytime driving) at terminal 15 ON. The lights module evaluates the switch-on or switch-off recommendation only if the system has been activated by the driver.
The high beam assistant always switches off high beam before another road user is dazzled. High beam must therefore be switched off at the latest when another road user comes into the range of the light beam of the high beam headlights.
Operation of the high beam assistant is based on an image sensor with image-processing software algorithms.
Light components are registered by a red/white-sensitive image sensor and transferred to the FLA control unit.
The image sensor is located at the base of the interior rear-view mirror with the FLA control unit housed in the mirror.
Scheme 1
| Index | Explanation |
|---|---|
| 1 | RLS sensor |
| 2 | FLA control unit in interior rear-view mirror |
| 3 | Buttons for UGDO |
| 4 | Indicator for anti-theft alarm system |
| 5 | Image sensor |
| 6 | Cover |
INDEX EXPLANATION CHART
Indications and Operation
An additional symbol in the instrument cluster signals the active status
- Symbol ON = FLA active
- Symbol OFF = FLA inactive
Operation of the blue high beam indicator lamp remains unaffected.
This lamp operates as normal in the instrument cluster.
