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Additional functions for driving lights actuation, function - GF82.10-P-3050CWA

MODEL 204.0 /2 with CODE (622) Intelligent Light System (right-hand traffic) up to Model Year 8 

Driving lights actuation additional function, general 

The driving light actuation additional function consists of several subfunctions. These are:

Active curve illumination 

Function requirements 

Active curve illumination function sequence 

The active curve illumination ensures an optimum illumination during cornering. To this end the headlamp unit and thus the low beams are swiveled into the horizontal towards the center of the corner. When steering into a corner the inside corner headlamp unit swivels-in up to 15°, the outside corner up to 7.5°.

The active curve illumination actuation depends on the following set variables:

The steering angle is the direct input parameter. The vehicle speed influences the system's control response (ratio of steering angle to swivel angle).

Low vehicle speeds require a smaller transformation ratio to prevent the pattern of light from appearing jumpy, e.g. in urban traffic.

At medium speeds an immediate response is given to relatively minor changes in the steering angle, at higher speeds the system responses are dampened again to a greater extent.

A range with lower sensitivity and greater damping is provided (approx. 6° steering angle) to compensate for the natural weaving of the vehicle when traveling straight ahead.

The steering angle read in via the steering angle sensor (N49) is placed on the chassis CAN by the steering column tube module control unit (N80).

Information on speed and yaw rate of the vehicle are also placed on the chassis CAN by the Electronic Stability Program control unit (N30/4).

The front SAM control unit with fuse and relay module (N10/1) receives this information and places it on the front end CAN. The left xenon light control unit (E1n1) receives it, evaluates it, and, in its function as master control unit, provides it to the right xenon light control unit (E2n1) via front end CAN.

The left active curve illumination actuator motor (E1m2) is actuated by the left xenon light control unit and the right active curve illumination actuator motor (E2m2) by the right xenon light control unit.

Motorway light 

Function requirements 

Motorway lights function sequence 

Starting at a vehicle speed of v > 90 km/h, the light output of the left xenon bulb with integrated ignition module (E1e10) and the right xenon bulb with integrated ignition module (E2e10) is increased linearly by the corresponding xenon light control unit.

Starting at a vehicle speed of v > 100 km/h, the left headlamp unit is lifted up by the left headlamp range adjustment actuator motor (E1m1). The maximum lift is reached at v = 120 km/h.

Starting at a speed of v < 80 km/h, the motorway lights function is deactivated.

Wide-beam fog light 

Function requirements 

Extended fog light function sequence 

When the rear fog lamp actuation is active and the vehicle speed is v < 70 km/h, the left xenon light control unit actuates the left headlamp range adjustment actuator motor and the left active curve illumination actuator motor.

The headlamp unit is swiveled outwards and then lowered. This in turn serves to reduce internal dazzling and the side illumination of the travel lane is improved.

Deactivation 

IMPORTANT If the "Extended fog light function" is active, the "Active curve illumination" function is switched off.

REFER TO SYSTEM WIRING DIAGRAMS Electrical function diagram for Intelligent Light System   PE82.10-P-2060-99FAA
  Yaw rate, lateral and longitudinal acceleration sensor, component description B24/15 GF42.45-P-4810CW
  Light sensor component description B38/1
Without code (345) Rain sensor		 GF54.21-P-6001CW
  Rain/light sensor, component description B38/2
With code (345) Rain sensor		 GF54.21-P-6000CW
  Lamp unit, component description E1, E2 GF82.10-P-2017CW 
  Xenon light control unit, component description E1n1, E2n1 GF82.10-P-2119CW 
  Component description for the RPM sensor L6/1, L6/2, L6/3, L6/4 GF42.30-P-4552CW
  Front SAM control unit with fuse and relay module, component description N10/1 GF54.21-P-6070CW
  Electronic Stability Program control unit component description N30/4 GF42.45-P-5119CW
  Steering angle sensor, component description N49 GF42.45-P-5107CW
  Electronic ignition switch control unit, component description N73 GF80.57-P-6001CW
  Steering column module control unit, component description N80 GF54.21-P-6051CW
  Exterior lights switch component description S1 GF82.10-P-4107CW 
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