GF30.30-P-3302LE Component Description For Bumper Radar Sensors

GF30.30-P-3302LE Component Description For Bumper Radar Sensors
- ENGINES 156, 273, 275 in MODEL 216 up to 31.8.10
- with CODE (233) Distronic Plus as of model year 2009 /YoM 08
- ENGINES 156, 272, 273, 275, 642, 629 in MODEL 221 up to 31.8.10
- with CODE (233) Distronic Plus as of model year 2009 /YoM 08





Shown: internal view of front bumper on model 221 (except model 221 as of 1.9.09)
A86/1b1 Left outer radar sensor, front bumper
A86/1b2 Left inner radar sensor, front bumper
A86/1b3 Right inner radar sensor, front bumper
A86/1b4 Right outer radar sensor, front bumper





Shown: internal view of front bumper on model 221 (for model 221 as of 1.9.09)
A86/1b2 Left inner radar sensor, front bumper
A86/1b3 Right inner radar sensor, front bumper





Shown: internal view of rear bumper on model 221 (except model 221 as of 1.9.09)
A86/2b1 Right outer radar sensor, rear bumper
A86/2b2 Right inner radar sensor, rear bumper
A86/2b3 Left inner radar sensor, rear bumper
A86/2b4 Left outer radar sensor, rear bumper





Shown: internal view of rear bumper on model 221 (for model 221 as of 1.9.09)
A86/2b1 Right radar sensor on the outside, rear bumper (with code (234) Active Blind Spot Assist)
A86/2b4 Left radar sensor on the outside, rear bumper (with code (234) Active Blind Spot Assist)

Location
The radar sensors are fitted from the rear in the bumper.

Task
The radar sensors (short range sensors) recognize objects (e.g. vehicles) within a short range up to 30 m and at an angle up to 140°. They cover the speed range of the vehicle from standstill up to the maximum speed and are therefore an ideal complement to long range radar.

Design
The radar sensors are ultra wideband radar sensors with the following properties:
- Radar sensor detection range 0.2 m to 30 m at a resolution of 0.04 m
- Detection zone 80° with angle measurement and 140° with detection only
- Radar sensor with 24.125 GHz carrier frequency
- Operation: short pulse method with 5 GHz bandwidth

The radar sensors are broadband, facilitating highly precise position data and simplifying the separation of objects within close range of one another.

Coding (differentiation) for the individual radar sensors takes place by means of different assignment with ground on pin 5 and 6.

Function
Actuation and evaluation of the front and rear radar sensors takes place from radar sensors control unit (SGR) (N62/1) up to YoM 09 facelift respectively via a sensor-CAN (CAN S) and as YoM 09 facelift via a common sensor CAN.