Component description for DISTRONIC electric controller unit - GF30.30-P-3213FLA

MODEL 212.0/2 up to 28.2.13 with CODE (233) Distronic Plus with CODE (237) Active Blind Spot Assist 

Vehicle view from the front 

Fig 1: Distronic Electric Controller Unit

Courtesy of MERCEDES-BENZ USA

Location 

The DISTRONIC controller unit is located in the middle of the radiator.

Task 

The DISTRONIC controller unit fulfills the following tasks:

• Actuation, power supply and evaluation of the target data of the integral long range sensor
• Control of the target evaluation (long range radar)
• Transfer of object data for the longitudinal vehicle regulation to the radar sensors control unit (N62/1) (up to 31.5.10) or to the video and radar sensor system control unit (N62/2) (as of 1.6.10) (for code (233) DISTRONIC PLUS)
• Transfer of object data for traffic monitoring to the video and radar sensor system control unit (with code (237) Active Blind Spot Assist)

The electronic control circuitry integrated into the DISTRONIC control unit actuates the long range radar and evaluates the target data. The DISTRONIC controller unit the target data from the long range sensor from the DISTRONIC controller unit via the dynamics CAN (CAN H) to the radar sensors control unit or to the video and radar sensor system control unit.

Input and output signals 

The following input signals from the DISTRONIC controller unit are received and evaluated and an output signal is issued via the dynamics CAN:

• Input signals 
• Output signals 

Input signals 

• Radar request
• Diagnosis request

Output signals 

• Target data from the radar
• Diagnostic data

Design 

The DISTRONIC control unit contains electronic control circuitry for actuation and evaluation of the long range radar.

Properties of the long range radar:

• Detection range of the radar sensor s = 0 to 200 m for a detection angle of ∠ = 18°
• Detection range of the radar sensor s = 0 to 60 m for a detection angle of ∠ = 60°
• 77 GHz radar sensor operating on the pulse Doppler principle for independent measurement of distance and speed

The DISTRONIC controller unit must be newly adjusted after exchange (e.g. after an accident repair) using the integrated "service adjustment mode".

The radar plate (A) is a radar-permeable cover in the radiator grille, which is required for the Distronic PLUS to function correctly.

Its tasks are as follows:

• Shielding against external effects (such as dirt, ice or insects)
• Ensuring optimal transmission and reception properties of the radar sensor
  Fig 2: Identifying Radar Plate

  Courtesy of MERCEDES-BENZ USA

Wiring diagram for Distronic (DTR) control unit

PE30.30-P-2101-97DAA