Component Description For Bumper Radar Sensors - GF30.30-P-3302CE
MODEL 204.3 with CODE 237 (Active Blind Spot Assist)
MODEL 204.9 as of model year 2013 with CODE 237 (Active Blind Spot Assist)
MODEL 204.0/2 as of model year 2012 with CODE 237 (Active Blind Spot Assist)
MODEL 204.9 as of model year 2013 with CODE 233 (DISTRONIC PLUS)
MODEL 204.3 with CODE 233 (DISTRONIC PLUS)
MODEL 204.0/2 as of model year 2012 with CODE 233 (DISTRONIC PLUS)
Shown on a disassembled bumper at the front (internal view)
Shown on a disassembled bumper at the front (internal view)
Location
front:
The DISTRONIC (DTR) sensors are inserted from the rear at the left and right respectively into the front bumper.
rear:
The radar sensors are respectively inserted on the inside on the left and right outer side for the rear bumper.
Task
The radar sensors (short range sensor) recognize objects (such as vehicles) in the short range area up to s = 30 m for a maximum detection angle of ∠ = 130°.
Body
The radar sensors are ultra wide band radar sensors with the following properties:
- Radar sensor detection range s = 0.18 to 30 m, at a resolution of s = 0.04 m
- Detection angle of ∠ = 60° with angle measurement and ∠=130° only with detection
- Carrier frequency: f = 24.125 GHz (model 204.0/2/3 up to 30.11.12, model 204.9) or f = 25 GHz (model 204.0/2/3 as of 1.12.12)
- Mode of operation: short pulse process with f = 5 GHz bandwidth (model 204.0/2/3 up to 30.11.12, model 204.9) or f = 1.4 GHz bandwidth (model 204.0/2/3 as of 1.12.12)
The high band width of the radar sensors allows a very precise position statement to be made and optimizes separation of objects lying close to each other.
Coding (differentiation) for the individual radar sensors takes place by means of appropriate assignment with ground on pin 5 and 6. Actuation and evaluation of radar sensors takes place from the video and radar sensor system control unit (N62/2) via the sensor CAN (CAN S).
| Wiring diagram for the video and radar sensor system control unit | PE30.30-P-2103-97FAA |