Adaptations To Your Vehicle - Bosch ABS M4 User Manual

Adaptations to Your Vehicle | 4

4 Adaptations to Your Vehicle
Physical vehicle data
For optimum brake performance, each M4 unit has to be customized to suit the
vehicle in which it is to be used. To do this, the system can be programmed by
the user with certain data, such as the vehicle weight, vehicle dimensions, wheel
circumference, and wheel weight. The system then uses this data as basis for cal‐
culation. Bosch can also program this data ahead prior to delivery on request,
however, it is very important that you calibrate or verify the data prior to operat‐
ing the vehicle.
You can find a form to fill in your vehicle data on www.bosch‐motorsport.com.
This form should be provided to you by your dealer with the order of the kit, if
the kit shall be programmed by Bosch.
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 Wiring Harness Clubsport [} 51].
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?
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 theABS 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?
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