Component Description For Multifunction Camera - GF54.21-P-3300LF
Model 217, 222
up to Model year 2018
with code 487 (MAGIC BODY CONTROL)
Model 217, 222
up to Model year 2018
with code 513 (Traffic Sign Assist)
Model 217, 222
up to Model year 2018
with code 608 (Adaptive Highbeam Assist)
Model 217, 222
up to Model year 2018
with code 610 (Night view assist)
Model 217, 222
up to Model year 2018
with code 628 (Adaptive Highbeam Assist Plus)
Model 217, 222
up to Model year 2018
with code P20 (Driving Assistance package Plus)
Shown on Model 222 (with code 513 (Traffic Sign Assist), code 610 (Night View Assist) or code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus) and without code P20 (Driving Assistance Plus Package))
Shown on Model 222 (with code 487 (MAGIC BODY CONTROL), code 513 (Traffic Sign Assist), code 610 (Night View Assist) or code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus) and code P20 (Driving Assistance Plus Package))
Location
The mono multifunction camera or stereo multifunction camera is positioned under a panel at the top center of the windshield.
Tasks
Mono multifunction camera:
The mono multifunction camera records information on the surroundings in the area to the front of the vehicle, e.g. ambient brightness, objects or traffic signs. These are evaluated by the integrated control unit, and used for implementing various functions.
Stereo multifunction camera:
The stereo multifunction camera consists of two high-resolution mono cameras mounted approx. 20 cm apart in a single housing. While one mono camera only estimates the distances to objects, the stereo multifunction camera can measure the distance to an object and its height above the road. This is made possible by the differences in perspective between the left and the right optical path. The electronic evaluation circuit in the stereo multifunction camera uses the same effect that enables people to have stereoscopic vision, this refers to the parallax or displacement between two images. At an average distance of 20 to 30 meters, the stereo multifunction camera can determine the distance to the object with an accuracy of 20 to 30 cm. This high resolution is also available under more difficult conditions such as when multiple objects are situated very close to each other, when objects are partially concealed or when there is a low contrast between the object and the background. The electronic analysis system of the stereo multifunction camera is also able to differentiate between shadow and road markings and real objects. Along with the spatial position of a detected object, the stereo multifunction camera also provides decisive additional information: For each pixel of a detected object, a direction of motion can be determined on the horizontal, vertical and longitudinal axes (longitudinal axis of an object). This then clearly shows whether an object is moving and if so, where to. In combination with object classification (e.g. pedestrian) based on common features, it is possible to achieve a high degree of decision-making reliability. For example, the exact impact location for a collision can be calculated which in turn enables the time remaining until the point of impact to be used to maximum effect for safety precautions. The stereo multifunction camera supports this process over the entire vehicle speed range.
This results in the following tasks:
- Reading in of signals
- Evaluation of input factors
- Controlling functions
- Actuation of components
- Transmission of signals and requests
Reading in of signals
The input factors are read in via the following connection:
- Periphery CAN (CAN PER) (mono multifunction camera)
- Chassis FlexRay (Flex E) (Stereo multifunction camera)
Periphery CAN (mono multifunction camera)
The mono multifunction camera also reads in the following signals over the periphery CAN:
- Terminal status of terminal 15
- Engine running or drive train operational
- Wheel speed
- Vehicle speed
- Vehicle lateral and longitudinal acceleration
- Vehicle level
The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).
Chassis FlexRay (Stereo multifunction camera)
The stereo multifunction camera also reads in the following signals over the chassis FlexRay:
- Terminal status of terminal 15
- Engine running or drive train operational
- Wheel speed
- Vehicle speed
- Vehicle lateral and longitudinal acceleration
- Vehicle level
- Accelerator pedal position
- Information on brake control system activities
- Information indicating driver activity, such as turn signaling, accelerating, braking, steering
- Information indicating possible distraction of the driver, such as operation of the audio system, various comfort functions (interior illumination, steering column adjustment) and different menu levels in the instrument cluster
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.
Controlling functions
The mono multifunction camera controls the following functions:
- Traffic Sign Assist (with code 513 (Traffic Sign Assist))
- Night View Assist (with code 610 (Night View Assist))
- High beams assistant (with code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus))
The stereo multifunction camera controls the following functions:
- Traffic Sign Assist (with code 513 (Traffic Sign Assist))
- Night View Assist (with code 610 (Night View Assist))
- High beams assistant (with code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus))
- Active driver assistance systems (with code P20 (Driving Assistance Plus Package)):
- Active Lane Keeping Assist (with CODE 238 (Active Lane Keeping Assist))
- Steering Assist (with code 266 (DISTRONIC PLUS with Steering Assist and Stop & Go Pilot))
- Brake Assist PLUS, cross traffic (with code 269 (Brake Assist PLUS, cross traffic (BAS+Q)))
- Pedestrian protection (with CODE 271 (Autonomous brake intervention/pedestrian protection))
- Active chassis systems:
- ABC control (with code 487 (MAGIC BODY CONTROL))
In vehicles with code 610 (Night View Assist), code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus), the relevant multifunction camera evaluates light sources in the area to the front of the vehicle. In the stereo multifunction camera, evaluation takes place via the right camera head.
Actuation of components
To avoid any fogging in the respective multifunction camera's field of view the front window is heated in this area by the auxiliary heater heating element (R50). The auxiliary heater heating element is directly actuated by the multifunction camera.
Transmission of signals and requests
The multifunction camera sends status information and requirements over the following connection:
- Periphery CAN (mono multifunction camera)
- Chassis FlexRay (Stereo multifunction camera)
Periphery CAN (mono multifunction camera)
The mono multifunction camera also sends the following signals and requests:
- Ambient brightness
- Execute optical headlamp range control (with code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus))
- Actuate adaptive high beams (with code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus))
- Display traffic signs (with code 513 (Traffic Sign Assist))
The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).
Chassis FlexRay (Stereo multifunction camera)
The stereo multifunction camera also sends the following signals and requests:
- Steering wheel vibration motor (M99)
- Ambient brightness
- Execute optical headlamp range control (with code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus))
- Actuate adaptive high beams (with code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus))
- Display traffic signs (with code 513 (Traffic Sign Assist))
- Lane data (with CODE 238 (Active Lane Keeping Assist))
- Object data (object size, object type, direction of motion of object, distance) (with code P20 (Driving Assistance Plus Package))
The functions that use these signals are described in the individual function descriptions (see block diagram or function schematic).
Variants
- Mono multifunction camera with horizontal detection angle of ∠ = 34° (with code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus) and without code 513 (Traffic Sign Assist))
- Mono multifunction camera with horizontal detection angle of ∠ = 46° (with code 513 (Traffic Sign Assist) and code 608 (Adaptive Highbeam Assist) or code 628 (Adaptive Highbeam Assist Plus))
| Wiring diagram for multifunction camera | Model 217, 222 up to model year 2018 with code 513 (Traffic Sign Assist) Control unit A40/11 Model 217, 222 up to model year 2018 with code 608 (Adaptive Highbeam Assist) Control unit A40/11 Model 217, 222 up to model year 2018 with code 610 (Night view assist) Control unit A40/11 Model 217, 222 up to model year 2018 with code 628 (Adaptive Highbeam Assist Plus) Control unit A40/11 | PE54.21-P-2129-97SEA | |
| Model 217, 222 up to model year 2018 with code 487 (MAGIC BODY CONTROL) Control unit A40/13 Model 217, 222 up to model year 2018 with code 513 (Traffic Sign Assist) Control unit A40/13 Model 217, 222 up to model year 2018 with code 608 (Adaptive Highbeam Assist) Control unit A40/13 Model 217, 222 up to model year 2018 with code 610 (Night view assist) Control unit A40/13 Model 217, 222 up to model year 2018 with code 628 (Adaptive Highbeam Assist Plus) Control unit A40/13 Model 217, 222 up to model year 2018 with code P20 (Driving Assistance package Plus) Control unit A40/13 | PE54.21-P-2129-97SEB |