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Dynamic drive, Dynamic damping control, Integral active steering – BMW 550i xDrive Gran Turismo 2010 User Manual

Page 102: Driving stability control systems

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Deactivating/activating DTC Dynamic

Traction Control

The system can be deactivated/activated via the
TRACTION and SPORT+ programs of the

Dy‐

namic Driving Control, refer to page 103

.

Dynamic Drive*

The concept

Dynamic Drive reduces the lateral inclination of
the vehicle that occurs during rapid driving in
curves or during quick evasive maneuvers.
Driving stability and driving comfort are in‐
creased under all driving conditions. The system
utilizes active stabilizer bars on the front and rear
axles that react immediately to all driving situa‐
tions.

Programs

The system offers two different programs.
The programs can be selected via

Dynamic Driv‐

ing Control, refer to page 103

.

SPORT

Sporty tuning for greater driving agility.

NORMAL

Comfort-oriented tuning for optimal comfort.

Dynamic Damping Control*

The concept

This system reduces undesirable vehicle mo‐
tion when using a dynamic driving style or trav‐
eling on uneven road surfaces.
The system enhances driving dynamics and
comfort as required for the road surface and
driving style.

Programs

The system offers three different programs.
The programs can be selected via

Dynamic Driv‐

ing Control, refer to page 103

.

SPORT

Consistently sporty tuning of the shock absorb‐
ers for greater driving agility.

NORMAL

Balanced tuning between the COMFORT and
SPORT programs.

COMFORT

Comfort-oriented tuning of the shock absorbers
for optimal traveling comfort.

Integral Active Steering*

The concept

Integral Active Steering is a combination of Ac‐
tive Steering and rear axle steering.
Active Steering varies the steering angle of the
wheels in relation to the steering wheel move‐
ment as a function of the speed.
At speeds up to approx. 37 mph/60 km/h, e.g.,
in curves, the steering angle is increased, i.e.,
steering becomes more direct.
The rear axle steering acts to increase maneu‐
verability by turning the rear wheels slightly in a
direction opposite to the front wheels.
At higher speeds, the steering angle is increas‐
ingly reduced.
The rear wheels are turned to the same angle as
the front wheels.
In critical situations, Integral Active Steering can
specifically steer the front and rear wheels to
stabilize the vehicle before the driver intervenes,
e.g., when braking where road conditions differ
on the left and right sides of the vehicle.

Initializing

In rare cases, it may become necessary to initi‐
alize the Integral Active Steering.

The warning lamp lights up. A message
appears on the Control Display.

1.

With the engine running, turn the steering
wheel all the way to the left and right several

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Driving stability control systems

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