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4 | Adaptations to Your Vehicle
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4
Adaptations to Your Vehicle
Physical vehicle data
For optimum brake performance, we customize each brake system to suit the ve‐
hicle in which it is to be used. To do this, we program the system with certain
data before delivery, such as the vehicle weight, wheel circumference, and wheel
weight. The system then uses this data as basis for calculation. You can find a
form to fill in your vehicle data on www.bosch‐motorsport.de.
Wiring harness
Each ABS system is delivered with a wiring harness that we have specifically cre‐
ated in accordance with customer requests.
With every Clubsport ABS you receive an appropriate wiring harness, which is not
specifically created. Please see Layout Wiring Harness Clubsport
System environment and related requirements
Is the ABS system being used as a closed stand-alone system? Or is it net-
worked with a control unit?
If the system is networked with a standard control unit, we recommend that you
use our speed/acceleration sensor with a CAN rate of 500 Kbaud/s to avoid com‐
patibility issues.
If the system is networked with a motorsport control unit or used as self‐suffi‐
cient stand‐alone‐system, we recommend that you use our speed/acceleration
sensor with a CAN rate of 1 Mbaud/s. This version features a greater measuring
range.
Was or is the vehicle already fitted with an ABS system? Was or is it an old
BOSCH ABS system?
The ABS M4 requires signals from differential dual Hallsensors such as the Bosch
DF11 or similar to function correctly. These sensor types are used in new vehicles
for ABS and ESP® systems and can be carried over for the ABS M4. The signal
level of conventional speed sensors, as found in old series‐production ABS sys‐
tems for example, is not compatible with the ABS M4; it is therefore not possible
to carry over conventional speed sensors as signal transmitters.
If your vehicle contains an older ABS system, you have to remove the wheel
speed sensors and replace them by the sensors includes in the package to be
able to use the ABS M4.
If you are fitting your vehicle with an ABS system for the first time, you may need
an encoder wheel for each wheel and a sensor mount to record the wheel
speeds. Please pay attention to the fitting position of the wheel speed sensors.
Do the wheel speed signals also need to be made available to other control
units?
We have developed a wheel speed signal splitter that converts the signals in such
a way that they can also be processed by peripheral engine control units and da‐
ta logging systems. The splitter provides an input signal like as it is shown in the
ABS M4 Manual
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Bosch Motorsport
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