Networking of Systems: Notes

The systems involved in the "driving dynamics control" function are shown in the following Input/Output illustration.

Index	Explanation
1	Controller
2	Driving dynamics switch and DTC button
3	Integrated Chassis Management
4	Accelerator pedal
5	Automatic transmission
6	Steering
7	Vertical Dynamics Control with electronically adjustable shock absorbers
8	Active anti-roll bar
9	Dynamic Stability Control
10	Instrument cluster
11	Central information display

The driver operates the driving dynamics control using the driving dynamics switch and the DTC button. The ICM control unit imports the control signals then determines on the basis of this which new mode the driving dynamics control should adopt. The mode thus determined is transmitted to the relevant drive and dynamic driving systems for implementation. These are:

• The engine control system for the accelerator pedal characteristic.
• The electronic gearbox control for driving programs and shift speed.
• The Vertical Dynamics Management system for the Vertical Dynamics Control and Active Roll Stabilization.
• The Dynamic Stability Control.
• The ICM control unit itself that controls the power steering assistance (Servotronic) and the steering-transmission ratio (Active Steering).

The ICM control unit also prompts the display of the relevant mode in the instrument cluster and also in the Central Information Display. In addition to selecting a mode, the driver can use the controller to make further settings.