Intelligent Driving Radar Sensor, Basic Function - GF54.71-P-2005A
Model all (CAR)
Overview
This document contains information on:
- General
- Function
General
Radar sensors detect objects within their detection range. A high resolution enables several objects to be differentiated between and their position and their direction of movement to be determined. This allows the system to determine which objects represent an obstacle for the vehicle's movement.
The near and long-range radar sensor or the midrange radar is located in the front center, in front of the cooler.
The outer front radar sensors are located on the left and right behind the front bumper. The outer rear radar sensors are located on the left and right behind the rear bumper.
Function
The radar sensor transmits bundled electromagnetic waves as so-called primary signals. Objects in the detection range of radar sensor reflect these electromagnetic waves. The radar sensor receives the reflected electromagnetic waves (secondary signals) and evaluates them according to various criteria. In this way, different information can be obtained about the objects:
- Angle or direction to the object
- Distance to the object
- Speed differential
The following types of radar sensor are differentiated, depending on application:
- Close and long range radar sensor:
- Short and long-range radar sensor
- Multi-mode radar sensors:
- Outer front bumper radar sensor
- Outer rear radar sensor
The front short and long range radar sensor detects objects (e.g. vehicles) in both the close and the long range. The integrated control electronics unit evaluates the object data from the front short and long range radar sensor. The sensor cover around the front short and long range radar sensor is heated. This keeps the front short and long range radar sensor free of ice and snow. The heating for the sensor cover is actuated by the front short and long range radar sensor. The front short-range and long-range radar sensor is connected to the vehicle's network architecture via the FlexRay. The outer front bumper radar sensors are connected to the vehicle's network architecture via CAN.
The outer rear radar sensors are connected to the vehicle's network architecture via CAN.
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.
| Component descriptions | |||
| Short and long-range radar sensor, component description | Model 223 | GF30.30-P-3126A | |
| Model 243 | GF30.30-P-3126B | ||
| Component description for bumper radar sensors | Model 243 | GF30.30-P-3302B | |
| Short range radar control unit, component description | Model 206 | GF54.21-P-0016C | |
| Model 297 | GF54.21-P-0016D | ||
| Model 295 | GF54.21-P-0016E |