Parking System Control Unit, Basic Function - GF54.65-P-9890A

MODEL ALL (CAR) 

with CODE 235 (Active Parking Assist with PARKTRONIC) 

MODEL ALL (CAR) 

with CODE P44 (Parking package) 

MODEL ALL (CAR) 

with CODE P47 (Parking Pilot with 360° camera) 

Task 

The parking system control unit evaluates the information from distance sensors at the front and rear of the vehicle. The distance sensors detect obstacles in front of and behind the vehicle. If an obstacle has been detected, the parking system control unit generates the warning according to the distance between the vehicle and the obstacle.

The parking system control unit uses the side distance sensors at the front to search for suitable parking spaces. Detected parking spaces and a selection of different parking options are displayed to the driver.

The parking system control unit calculates a suitable path (trajectory) and assists when parking and unparking by:

• Steering
• Changing gear (vehicles with automatic transmission)
• Adapting the vehicle speed
• Braking automatically
• Switching on the turn signal indicators

The parking system control unit is connected via the suspension FlexRay (Flex E) to the network architecture of the vehicle.

To implement the functions, the parking system control unit processes information including the following:

• Engine/drivetrain operating state
• Circuit status of circuit 15
• Wheel speed and wheel rotation direction
• Engaged gear (vehicles with manual transmission) or engaged drive range (vehicles with automatic transmission)
• Acceleration/yaw rate
• Status of Electronic Stability Program (ESP®)
• Status of electric power steering
• Rack position of electric power steering
• Front wheel angle
• Status of parking space selection
• Parking brake, brake, ESP® status
• Trailer operation status (vehicles with trailer hitch)
• Blind Spot Assist warning (vehicles with blind spot monitoring)
• Blind Spot Assist braking request (vehicles with blind spot monitoring)
• Steering wheel angle and steering wheel velocity
• Vehicle level (vehicles with air suspension)
• System status
• Accelerator pedal position
• Status of surround lighting (vehicles with Parking Package)
• Status of outside mirror housings (vehicles with Mirror Package)

The parking system control unit evaluates these input factors and sends the following information and requests:

• Status of parking system
• Information on distance to obstacle (remaining distance to obstacle)
• Requests:
  • Engage drive range (vehicles with automatic transmission)
  • Increase/reduce the braking torque
  • Control mode (speed control)
  • Adjust front wheel angle (steering movement)
  • Fold in outside mirror housings (vehicles with Mirror Package)
  • Actuate rear camera cover
  • Switch on surround lighting (vehicles with Parking Package)
  • Emit warning tones, system or warning messages

	Detailed information
	Parking system control unit, detailed information	Model 177 with code 235 (Active Parking Assist with PARKTRONIC) Model 177 with code P44 (Parking package) Model 177 with code P47 (Parking Pilot with 360° camera)	GF54.65-P-0010A