C 350 (204.056) V6-3.5L (272.961) (2008)
Fog/Driving Lamp: Description and Operation
GF82.10-P-3050CWA Additional Functions For Driving Lights Actuation, Function
GF82.10-P-3050CWA Additional Functions For Driving Lights Actuation, Function
- with CODE (622) Intelligent Light System (right-hand traffic)
Driving lights actuation additional function, general
The driving light actuation additional function consists of several subfunctions. These are:
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Active curve illumination
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Motorway light
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Wide-beam fog light
Active curve illumination
Function requirements
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Function activated via the instrument cluster (A1)
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Low beam ON
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Vehicle moving forward
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"Extended fog light" function not active
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Circuit 61 ON
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:
Steering angle
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Vehicle yawing rate
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Vehicle speed
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
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Function activated via the instrument cluster
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Low beam ON
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Light sensor or rain/light sensor signals darkness
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Circuit 61 ON
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Vehicle moving forward
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.