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2 | Installation Guide
8 / 28 Collision Avoidance System CAS-M light Bosch Motorsport
2.2 Configuration of the sensor position
Definition of sensor position and orientation
Message CAN ID Byte
order
Value type Start bit Length
[bit]
Factor Offset
Orientation 0x618 Intel Signed 28 2 1 0
Position_X 0x618 Intel Signed 30 10 0.01 0
Position_Y 0x618 Intel Signed 40 8 0.01 0
Position_Z 0x618 Intel Unsigned 48 8 0.01 0
The Message 0x618 has to be send to the sensor once after every power cycle. Otherwise
the default values are used by the sensor.
See appendix table 1 for assignment of signed integer values in hex.
Conversion of negative values into hex with two´s complement:
10bit : Hex value = Decimal to hex (Physical value / 1024 )
8bit : Hex value = Decimal to hex (Physical value / 256 )
Example for Position X (10Bit value) = -1m
Decimal value = -1 / 0,01 + 1024 = 954
Hex value = Decimal to hex (954) = 39C
Orientation
Description Value Default
Connector facing up -1 1
Connector facing down +1
Position_X
Description Comment Default
Sensor position in X direction Distance from rear axle in [m]
X-axis is positive if sensor behind
rear axle
+1
Position_Y
Description Comment Default
Sensor position in Y direction Distance from vehicle symmetry
axle [m]
Left is positive
0
Position_Z
Description Comment Default
Sensor position in Z direction Distance to ground [m] 0.5