Front Multifunction Camera, Basic Function - GF54.71-P-9890A
Model all (4xWD)
Model all (CAR)
Example illustration of multifunction camera
Example illustration of multifunction camera
Overview
This document contains information on:
- General
- Multifunction camera (vehicle equipment without Driving Assistance Package)
- Multifunction camera (vehicle equipment with Driving Assistance Package)
- Function requirements
- Function
- Multifunction camera (vehicle equipment without Driving Assistance Package)
- Multifunction camera (vehicle equipment with Driving Assistance Package)
General
Multifunction camera (vehicle equipment without Driving Assistance Package)
The multifunction camera (1) records the area in front of the vehicle (e.g. brightness, objects or traffic signs). This information is evaluated by the integrated electronic analysis system and then used for implementing various functions.
Multifunction camera (vehicle equipment with Driving Assistance Package)
The multifunction camera (2) consists of two high resolution camera heads that are mounted at a distance of approx. 20 cm apart in a housing. The multifunction camera (2) can record the distance to an object and its height above the roadway. This is made possible by the differences in perspective between the left and the right optical path.
The multifunction camera consists of the following main components:
- Camera head (multifunction camera (1))
- Left and right camera head (multifunction camera (2))
- Electronic analysis system (control unit)
- Heating element for auxiliary heating (to avoid any fogging in the multifunction camera's field of view, the windshield is heated in this area by the heating element for the auxiliary heating; the heating element for the auxiliary heating is actuated directly by the multifunction camera)
After replacement of a multifunction camera or the windshield the corresponding multifunction camera has to be recalibrated.
Function requirements
- Circuit 15 ON
- Engine running or drive train operational
Function
Multifunction camera (vehicle equipment without Driving Assistance Package)
The multifunction camera (1) controls the following functions:
- Track guidance (vehicles with Active Lane Keeping Assist)
- Traffic area monitoring (Vehicles for countries with Euro NCAP)
- Traffic sign recognition (vehicles with Speed Limit Assist or with Traffic Sign Assist)
- Automatic high beam (vehicles with Adaptive Highbeam Assist)
A differentiation is made between the following variants of the multifunction camera (1):
- Entry (vehicles with Adaptive Highbeam Assist)
- High (vehicles with Active Lane Keeping Assist, with Traffic Sign Assist)
- EVO (vehicles for countries with Euro NCAP)
The Entry or High multifunction camera (1) is connected to the network architecture of the vehicle via CAN.
The EVO multifunction camera (1) is connected to the network architecture of the vehicle via FlexRay.
Multifunction camera (vehicle equipment with Driving Assistance Package)
The electronic evaluation circuit in the multifunction camera (2) 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 m, the multifunction camera (2) can determine the exact distance to the object down to 20 to 30 cm. This high resolution is also available under arduous conditions.
- If, for example, several objects are situated very close to each other.
- When objects are partially concealed.
- If the contrast between object and the background is low.
The electronic analysis system of the multifunction camera (2) is also able to differentiate shadows and road markings from real objects. Along with the spatial position of a detected object, the multifunction camera (2) 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 recognizes 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 multifunction camera (2) supports this process over the entire vehicle speed range.
The multifunction camera (2) is connected to the network architecture of the vehicle via FlexRay.
The multifunction camera (2) controls the following functions:
- Traffic sign recognition (vehicles with Traffic Sign Assist)
- Automatic high beam (vehicles with Adaptive Highbeam Assist)
- Active driver assistance systems:
- Active track guidance
- Traffic area monitoring
To implement the functions, each multifunction camera processes, e.g. the following information:
- Engine/drivetrain operating state
- Terminal status of terminal 15
- Wheel speed
- Vehicle speed
- Acceleration/yaw rate
- Information indicating driver activity, such as, e.g. turn signaling, accelerating, braking, steering
- Information indicating possible distraction of the driver, such as, e.g.:
- Operation of audio system
- Operation of on-board computer/multimedia system
- Operation of various comfort functions (interior lighting, steering column adjustment)
- Information on activities of the brake control systems (multifunction camera (2))
The microprocessor integrated in the multifunction camera evaluates these input factors and sends the following information and requests, among others:
- Ambient brightness
- Lane data
- Object data (object size, object type, object direction of motion, distance) (multifunction camera (2))
- Requests:
- Actuate electric power steering actuator motor (vehicles with Lane Keeping Assist).
- Automatic high beam (vehicles with Adaptive Highbeam Assist)
- Display traffic signs (vehicles with Traffic Sign Assist).
| Detailed information | |||
| Front multifunction camera, detailed information | Model 118, 167 as of model year 2023 Model 177, 247 as of model year 2022 | GF54.71-P-0021A | |
| Component descriptions | |||
| Component description for multifunction camera | Model 223 | GF54.21-P-3300A | |
| Model 243 | GF54.21-P-3300B | ||
| Model 206 | GF54.21-P-3300C | ||
| Model 297 | GF54.21-P-3300D | ||
| Model 295 | GF54.21-P-3300E | ||
| Model 232 | GF54.21-P-3300F | ||
| Model 296 | GF54.21-P-3300G | ||
| Model 254 | GF54.21-P-3300H | ||
| Model 214 | GF54.21-P-3300K | ||
| Model 118 as of model year 2023 Model 177, 247 as of model year 2022 |
GF54.21-P-3300L | ||
| Model 167 as of model year 2023 |
GF54.21-P-3300M | ||
| Model 294 | GF54.21-P-3300N | ||
| Model 192 | GF54.21-P-3300R | ||
| Model 236 | GF54.21-P-3300S | ||
| Multifunction camera heating element, component description | Model 223 | GF54.71-P-0014A | |
| Model 206 | GF54.71-P-0014C | ||
| Model 297 | GF54.71-P-0014D | ||
| Model 295 | GF54.71-P-0014E | ||
| Model 232 | GF54.71-P-0014F | ||
| Model 296 | GF54.71-P-0014G | ||
| Model 254 | GF54.71-P-0014H | ||
| Model 214 | GF54.71-P-0014K | ||
| Model 294 | GF54.71-P-0014N | ||
| Model 192 | GF54.71-P-0014R | ||
| Model 236 | GF54.71-P-0014S |