Vehicle Integration; Radar Cone - Bosch FR5CUEC Quick Start Manual

Chassis Systems Control
Model
FR5CUEC User Manual ITA
are at risk, it can actively trigger application of the brakes in order to considerably reduce the
risk and the consequences of the collision, or to prevent the accident altogether.
Sensor data fusion can also be used to significantly improve the performance of the comfort
functions. Thanks to the high degree of lateral measuring accuracy of a video camera, the
ACC function is able, for example, to detect vehicles merging at an earlier stage, and therefore
respond in a more dynamic manner. The system also ensures that vehicles in front are
assigned to the correct lanes, which further enhances ACC functionality, especially when
cornering.

6 Vehicle Integration

This chapter describes the requirements for all parts mounted in front or around the sensor,
like painted bumper, unpainted cover and emblem/radome, regarding RF integration at 77 GHz
with FR5CUEC radar sensors.
The radar sensor performance should be influenced as low as possible by the installation
behind a fascia. Therefore the two-way radar loss by the fascia should be as low as possible
and the reflection attenuation must fulfill the requirements listed below.
Vertical misalignment will cause additional attenuation reducing the maximum range.
Horizontal misalignment will cause reduced detection at higher azimuth angles.
Ghost target detection caused by interference signals of multiple reflection at fascia and
metallic parts of the vehicle must be avoided. A simulation can be offered to evaluate the risk
and the need of using absorber material to suppress this unwanted signal. Because the
threshold of detection is very low, a high attenuation is required. Plastic material can only
achieve high enough attenuation, if carbon black is added.
Scope of FR5CU vehicle integration
The FR5CUEC requires the installation in the front center of the vehicle. The normal vector of
the sensor shall be directed in driving direction.

6.1 Radar Cone

Radar Cone for FR5CU
Document Dept.
XC-DA/ESR1
Leonberg
20 December 2021
Page 10 of 15