System Overview; Function Principle; Hardware - Bosch Collision Avoidance System CAS-M light Manual

Bosch Motorsport

1 System Overview

The CAS-M light helps the driver to focus on the track and warns him if a car is approach-
ing from behind. The system provides information about relative speed and distance on
the CAN bus. The benefit is even more increased during nighttime or in bad weather con-
ditions.
The interface is very intuitive and adaptable to the drivers liking – so there is no need in
special driver trainings.

1.1 Function principle

CAS-M light provides information for distance and relative speed of the closest vehicle
behind via two LEDs (left and right) in the driver display. Only the closest vehicle behind is
considered. All other objects are suppressed.
In large (green) and medium (yellow) distance both LEDs (left and right) are used in paral-
lel to provide the available information. In close (red) distance a left/right determination is
done, and only the appropriate left or right LED is used to provide information about the
object behind the driver.
All distance and delta speed thresholds based on the physical raw values to control the
object detection and LED visualization can be adjusted individually via CAN (depending
on pilot and race category different settings may be required).
CAS-M light contains a pre-defined visualization concept to allow for a quick starting with
the system. The pre-defined thresholds are based on Bosch Motorsport know how and ex-
perience with the system.

1.2 Hardware

The CAS-M light system consists of a Bosch automotive mid range radar sensor, shown in
the following picture/drawing.
Illustration 1: CAS-M light sensor
Collision Avoidance System CAS-M light
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