BMW 5 - Manual (Page 23)

BMW
Media
Information
11/2009
Page 23
On the new BMW 5 Series Sedan the double track control arm front axle
and the integral rear axle form a roll axis running almost parallel to the road
itself. This gives the car exceptionally harmonious and stable behaviour in
bends, with the front and rear axle always interacting efficiently in their roll
and transient behaviour.
Adaptive Drive: even more dynamic and with unique comfort.
As an option the new BMW 5 Series Sedan is available with BMW Adaptive
Drive comprising Dynamic Damper Control and Dynamic Drive active anti-roll
stability management. Controlled electronically, the dampers adjust both
to the road surface and the driver’s style of motoring in order to prevent any
undesired movement of the car possibly caused by bumps or high lateral
acceleration.
BMW is the world’s first car maker to use the damping system first featured
in the new BMW 7 Series with adjustment of the inbound and rebound
strokes both continuous and independent of one another. This offers a
unique combination of a firm suspension set-up and a comfortable response
to bumps on the road. The driver is able to set the damper control map
himself by means of Dynamic Drive Control, choosing from a comfortable,
a normal, and a sporting mode.
Dynamic Drive anti-roll stability reduces side roll of the car in fast bends and
in a sudden change of direction. Depending on driving conditions, sensors
determine the current side roll and swivel motors in the anti-roll bars both
front and rear quickly and precisely build up appropriate counter-forces. This
also shifts the distribution of forces between the front and rear axles, adjusting
the car’s steering behaviour and load change according to specific
requirements in each situation and as a function of the suspension mode
chosen.
Dynamic Damper Control is available as an individual option on the
BMW 520d, BMW 525d, BMW 523i, and BMW 528i.
Precise and efficient: EPS Electric Power Steering making
its debut in the BMW 5 Series.
The new BMW 5 Series Sedan is the first car in its segment to feature EPS
Electric Power Steering. This innovative steering system enhances both
the precision and comfort of the steering process, at the same time ensuring
the handling typical of BMW with maximum efficiency. Contrary to
conventional mechanical/hydraulic systems, steering assistance is provided
in this case by an electric motor activated only when assistance is necessary
or desired by the driver. When driving in a straight line or when taking a bend