A108/1 | Active Distance Assist DISTRONIC electric controller unit |
P30.30-3071-76
Location
The Active Distance Assist DISTRONIC electric controller unit is located at the center behind the radiator grille.
Task
The multi-range radar in the Active Distance Assist DISTRONIC electric controller unit detects the traffic situation in front of the vehicle.
The Active Distance Assist DISTRONIC electric controller unit processes the data of the multi-range radar for the implementation of the following functions:
Distance control
Collision warning
Autonomous partial braking and maximum full-stop braking
The Active Distance Assist DISTRONIC electric controller unit is connected to the network architecture of the vehicle.
For the execution of the functions, the Active Distance Assist DISTRONIC electric controller unit processes the following information:
Operating condition for engine/drivetrain
Driving stage engaged
Active transmission mode
Parking brake status
Vehicle speed
Operating requests
Brake system status
Accelerator pedal position
Engine drive torque
Steering wheel angle
The Active Distance Assist DISTRONIC electric controller unit evaluates these input factors and transmits the following information and requests:
System status
Object information
Requests:
Increase/reduce engine torque
Expand/limit drive range
Increase/reduce the braking torque
Brakes
Show system and/or warning messages, output warning tones
Status queries, diagnosis
Structure
The Active Distance Assist DISTRONIC electric controller unit contains the following component parts:
Multi-range radar
Controller unit
Radome heater
The multi-range radar has the following features:
Detection range:
40 m for a detection angle of 45°
160 m for a detection angle of 7.5°
Operating frequency: 77 GHz
The multi-range radar works according to the Pulse-Doppler principle for the independent measurement of the distance and speed.
The Active Distance Assist DISTRONIC electric controller unit must be readjusted after replacement (e. g. after accident repair).