Multifunction camera, component description - GF54.21-P-3300FQ

MODEL 218 with CODE (238) Active Lane Keeping Assist with CODE (476) Lane Keeping Assist with CODE (513) Speed Limit Assist with CODE (608) Adaptive high beams assist 

Location 

The multifunction camera is under a cover at the top center of the windshield.

Task 

The multifunction camera records pictures of the area in front of the vehicle. The pictures are processed in the multifunction camera's internal control unit and used for implementation of the camera-based driver assistance systems.

The multifunction camera has the following tasks:

• Reading in of sensors, pickups and signals 
• Evaluation of input factors 
• Control of systems 
• Actuation of components 

Reading in of sensors, pickups and signals 

The input factors are read in over the chassis CAN (CAN E).

The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).

Evaluation of input factors 

The input factors are evaluated by the microprocessor and the corresponding components are actuated.

Control of systems 

The multifunction camera controls the following systems:

• Active Lane Keeping Assist

  (with code (238) Active Lane Keeping Assist)

• Lane Keeping Assist

  (with code (476) Lane Keeping Assist)

• Speed Limit Assist

  (with code (513) Speed Limit Assist)

• Highbeam Assist

  (with code (608) Adaptive Highbeam Assist)

Actuation of components 

The signals are sent by the multifunction camera via the chassis CAN. The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).

To avoid any fogging (caused by air humidity) in the multifunction camera's field of view, the windshield is heated in this area by the auxiliary heater heating element (R50) which is actuated directly by the multifunction camera.

Design 

The multifunction camera consists of the following components which are integrated in a housing:

• Multifunction camera
• Multifunction camera control unit

The multifunction camera must be recalibrated after replacing the multifunction camera or windshield.

Wiring diagram for multifunction camera

PE54.21-P-2129-97XAA