Bosch CAS-M light, Manual, Page: 5 / 28

System Overview | 1
Bosch Motorsport Collision Avoidance System CAS-M light 5 / 28
Car CAS-M
Vehicle speed,
configuration
LED status
Illustration 3: Wiring schematic
1.4 CAN communication
Since the system provides the information on the CAN bus (car approaching left/right,
distances, relative speeds ...), it is mandatory to connect the sensor to it. In addition the
sensor needs to get the vehicle’s speed via CAN.
CAN Baud rate: 500 kBaud or 1 MBaud
CAN update rate of Sensor: 50 Hz
Vehicle Speed
Information that needs to be send from the car to the system:
Message CAN ID Byte
order
Value
type
Start bit Length
[bit]
Factor Offset
Speed 0x616 Intel Unsigned 24 16 0.1 0
Predefined Messages
Information that is send from the sensor to the car:
Message CAN ID Byte
order
Value
type
Start bit Length
[bit]
Factor Offset
Object_left_dist_
range
0x3F3 Intel Unsigned 58 3 1 0
Object_left_ap-
proach_spd_range
0x3F3 Intel Unsigned 61 3 1 0
Object_right_dist_
range
0x3F5 Intel Unsigned 58 3 1 0
Object_right_ap-
proach_spd_range
0x3F5 Intel Unsigned 61 3 1 0