Ignition Trigger Wheel; Office Harness; Recommended Values - Bosch MS 6 Manual

2 | Technical Data
2.3.8
Notice
20 / 78
Due to installation condition the length may have to be reduced.
Keep network wiring in distance to main sources of electrical noise like coils, coil‐
and HP‐injector wirings and also in distance to any telemetry transmitter.
CAN‐networks need an 120 Ohm termination at 2 ends of the wiring.
The MS 6 is able to switch on an internal 120 Ohm termination, set
CWCANx_TERM true to enable the termination.
For wiring layout respect the common rules of failure reduction like separated
sensor power supply between important system sensors (e.g. camshaft detection)
and measure options (e.g. damper position).
Be ensure HP‐injectors, electronic throttles and other high frequently switched
actuators are connected within the wiring limits of 2.5 m and all wires are manu‐
factured as twisted pairs.
Using a preinstalled production harness verify first the way of sensor‐ and actua‐
tor controls.
Often production parts have to be connected to 12 V power supply and actua‐
tors are controlled in different ways. The production harness may need to be
modified.

Office harness

Reduced layout to realize communication between PC, MS 6 device and Display
DDU. Recommended for flash configuration, display configuration and installa‐
tion tasks. Bosch Motorsport part number: F02UV01809

Ignition Trigger Wheel

To detect the engine position and to calculate the exact crankcase position, the
system assumes toothed trigger wheels for proper operation. Recommended is
to use 60 (‐2) teeth for the flywheel and one teeth for the camshaft detection.
Modifications of the mechanical designs are possible, such as using quick‐start
production designs for the camshaft or different number of teeth for the flywheel
(limited to 30 to 60 teeth).
Less number of teeth reduces the accuracy of the system angle
measurement.
Not usable are flywheels with 4‐1 or 6‐1 teeth. Please follow the description be‐
low as recommendation for the mechanical dimensions.

Recommended values:

▪ D = min. 160 mm
▪ h1 = 3.5 mm
▪ h2 = h1/2 (important for the use of inductive sensor)
▪ LSKW = 0.8 mm +/‐ 0.3 mm
▪ t = min. 5 mm
▪ LNSW = 1.0 mm +/‐ 0.5 mm
ECU MS 6 Bosch Motorsport