Reversing camera (RFK), operating notes - GF54.65-P-0005-03GMJ
Reversing camera, general operating notes
The reversing camera system enables the driver to select between two parking modes:
- Reverse parking
- Parallel parking
The driver can also choose to view a display of the area recorded by the passenger-side outside mirror reversing camera (B84/6).
The parking mode last selected is activated by engaging reverse gear.
The driver can switch between reverse parking mode and parallel parking mode via the COMAND operating, display and controller unit (A40/3).
The operating notes for the reversing camera comprise the following notes:
- Operating notes for parallel parking
- Operating notes for reverse parking
- Operating notes for parking using outside mirror
Operating notes for parallel parking
Move to start position
The start position is parallel with a distance of one meter to the vehicle parking in front.
Furthermore the driver seat of the vehicle parking in front should be at the level of the rear axle of the vehicle you are driving.
The two vertical help lines represent the end of the vehicle rear of the vehicle parked in front.
If this is not the case, the driver must first reset straight ahead until one of the help lines touches the end of the vehicle rear.
Determining final parking position
Once the start position for parking is defined, then the desired parking position must be set. For this purpose the driver with the vehicle at a standstill must firstly turn in the steering wheel.
A parking frame is then displayed on the COMAND operating, display and controller unit, which the driver must use to set the target position. This parking frame turns in ratio to the steering angle, i.e. with the aid of the steering wheel the driver can define the position of the parking frame and thus the final parking position. The driver can also use the parking frame to determine whether the parking space is suitable for his/her vehicle.
Once the driver has defined the parking position with the aid of the parking frame, the backup camera control unit (N66/2) then uses the collated data to define the parking position and the required steering angle for the subsequent first steering angle.
The color of the parking frame must be green, if the parking space is to be successfully entered with the set steering angle. If the parking frame is colored red, then the steering angle must be continually adapted until the parking frame turns green.
Transition from first to second steering angle
First steering angle:
Once the parking position has been defined, the driver moves the vehicle backwards. During this phase the driver must maintain the previously defined steering angle. As soon as the vehicle nears the edge of the road, a guide line appears on the COMAND operating, display and controller unit. This guide line can be used by the driver to determine when he/she should initiate the next steering maneuver.
As soon as the guide line virtually touches the edge of the road, the driver stops the vehicle and turns the steering wheel up to the light stop in the opposite direction.
To prevent the driver relying solely on the COMAND operating, display and controller unit and as a result ignoring the immediate environment, no help lines are displayed in the parking space during the first steering maneuver.
Second steering angle:
As soon as the steering wheel is at the light stop, the distance lines, which are already familiar from the reverse parking mode, appear again in the COMAND operating, display and controller unit. These lines can be used by the driver to maneuver the vehicle such that the best parking position is achieved.
Operating notes for reverse parking
Display of guide lines
Virtual extension of vehicle longitudinal axis (green guide lines): The green guide lines represent a virtual extension of the vehicle. The distance between the green help lines is slightly more than the vehicle width.
Virtual steering angle (yellow help lines):
The yellow help lines are shown as soon as the driver turns the steering wheel. They indicate to the driver the path which the vehicle would follow with the currently applied steering angle. This curve is automatically adapted to the situation as the steering angle changes. The distance between the yellow help lines is slightly more than the vehicle width.
Parking procedure:
In order to park, the driver must now adapt the steering angle until an outer line of the yellow guide lines in the COMAND operating, display and controller unit virtually touches the parking space marking.
This parking space marking can, e.g. be another vehicle or a line on the asphalt. The driver must then continue reversing and adapting the steering angle until the displayed parking space run parallel to the current direction of travel.
Next the driver must turn the steering wheel back into the straight-ahead position in order to drive in a straight line up to the final parking position in the parking lot.
Display of distance lines
In the straight-ahead position of the steering wheel (steering angle = 0°) the yellow help lines are congruent with the green help lines. As soon as the lines are congruent, the green help lines are no longer displayed.
By means of distance lines the driver is informed about the distances from the virtual bumper to the obstacles.
Operating notes for parking using outside mirror
Marked points on vehicle
The picture shows the important points of the vehicle for orientation purposes.
The orientation line running parallel to the vehicle is a distance line. It is displayed virtually at a distance of s = 0.35 m. The reference line running vertically relative to the distance line indicates the front axle.
Virtual tracks
These orientation lines are displayed when the driver turns the steering wheel towards the front passenger side and the steering angle is greater than > 90°.
The virtual track with current steering angle indicates the virtual track that the vehicle would follow with the current steering angle. This help line is automatically adapted to the situation as the steering angle changes.
The virtual track with maximum steering angle additionally indicates the track that the vehicle would follow with the steering wheel at full lock.
This line is calculated with a distance to the vehicle boundary of s = 0.30 m and displayed.
Driving around an obstacle using the guide lines
When driving around obstacles, the camera image and the virtual guide lines assist the driver to complete the maneuver without damaging his/her own vehicle.
The driver can see the distance to the obstacle using the virtual distance lines running parallel to the vehicle (plus s = 0.35 m distance). The vehicle is safe as long the obstacle remains outside the lines.
Two further orientation lines are also shown on the display of the COMAND operating, display and controller unit when the steering wheel is turned.
The virtual track with maximum steering angle indicates the track that the vehicle would follow with the steering wheel at full lock. By contrast, the virtual track with current steering angle indicates the virtual track that the vehicle would follow with the current steering angle plus distance of s = 0.35 m.
This line is automatically adapted to the situation as the steering angle changes. However, the guide lines are no longer displayed when a steering angle of < 90° is received by the reversing camera control unit.
Parking longwise in the direction of travel alongside an obstacle
The driver can see the distance to the obstacle using the virtual distance lines (not pictured) running parallel to the vehicle displayed on the COMAND operating, display and controller unit (plus s = 0.35 m distance).
The driver stops the vehicle when this distance line in the display virtually touches the obstacle and the parking position has then been reached.