BMW 5 Series: Driving Stability Control
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FlexRay bus overview in the G30
ACSM - Advanced Crash Safety Module
DSC - Dynamic Stability Control
EARSV - Electric active roll stabilization front
EARSH - Electric active roll stabilization rear
EPS - Electromechanical Power Steering
HSR - Rear axle slip angle control
SAS - Optional equipment system
VDP - Vertical Dynamic Platform
VTG - Transfer case
As is already familiar from the G12, the G30 does not have Integrated Chassis
Management (ICM). The
ICM functions are distributed between the optional equipment system (SAS) and
the Dynamic Stability
Control (DSC).
It has been possible to further improve the driving dynamics in the G30 by
selective use of various
control functions. This is particularly keenly felt in relation to the steering
behavior, the traction and the
vehicle's stability.
The control units necessary to meet the requirements on driving dynamics are
located on the FlexRay
bus. This allows them to quickly exchange their information with each other and
react to events.
The following actuators are activated as needed:
- Rear axle slip angle control HSR (optional equipment)
- Electronic Power Steering EPS (standard equipment)
- DME engine control unit
- VTG transfer case (optional equipment)
- Electric active roll stabilization at the front and rear (EARSV/EARSH)
(optional equipment)
- Electronic Damper Control (EDC) (optional equipment)
The tables below provide an overview of the various control functions and
their effects on the
drivability.
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Alongside the Vertical Dynamics Platform (VDP) control unit, the Dynamic
Stability Control (DSC)
represents the core element of the driving dynamics control systems used to
increase active safety. I
The G30 has Electronic Power Steering (EPS) in the following different
versions:
Standard steering 12 V
Integral Active Steering 12 V
Integral Active Steering 24 V
Overview of equipment specific
System overview of electric active stabilization in the G30
Electric active roll stabilization front (EARSV)
Front right vertical acceleration sensor
Auxiliary battery in the engine compartment
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General information
Depending on the vehicle equipment, comfort
and individual settings can be stored in the vehicle
and modified or reset at any time.
For example, this includes:
Settings for the seat and steering wheel positions.
Suspension and climate control settings.
If necessary, data can
The Park Distance Control (PDC), optional equipment (OE 508), assists the
driver when maneuvering
in and out of a parking space. The current distance from an obstruction is
indicated by acoustic signals
and on a visual display.
G30 Park Distance Control PDC view in the CID
The distance from an ob