Bmw 5 Bedienungsanleitung PDF herunterladen (Seite 24)

BMW

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Information

11/2009

Page 24

with a steady steering angle, on the other hand, the consumption of energy

is reduced to zero.

Precise, smooth and harmonious set-up of the steering with the feedback

typical of BMW ensures maximum steering accuracy at all times. In the Sport

mode of Dynamic Drive Control and with DSC switched off, the degree of

steering forces is slightly increased in accordance with the style of motoring

desired.

EPS serves to control steering feedback from the system with particular

precision. At the same time EPS comes as standard on the new BMW 5

Series Sedan with Servotronic gearing steering assistance to the speed

of the car. When parking and steering at low speeds, for example, the driver

hardly has to make any effort, while at higher speeds power assistance is

intentionally reduced for optimum contact to the road and in the interest

of well-balanced directional stability.

A further point is that EPS eliminates bumps coming from the steering

and any other adverse vibrations very effectively. And by evaluating dynamic

driving signals in an appropriate process, EPS gives the driver authentic

steering feedback particularly under very dynamic driving conditions.

Integral Active Steering: greater agility in town,

enhanced comfort in a quick lane change.

Available as an option, Integral Active Steering is another innovation

exclusive to the new BMW 5 Series Sedan in the upper midrange segment.

IAS combines the Active Steering on the front wheels already available on

the former model with rear-axle steering, the steering angle and steering

assistance therefore being controlled for the first time both front and rear

by electric motors.

On models fitted with Integral Active Steering, steering forces are

controlled by Servotronic and the steering angle is masterminded by an

additional active steering transmission acting on the front axle, in each case as

a function of road speed. At the same time the system also varies the steering

angle of the rear wheels through a concentrically arranged motor acting

through spindle drive on the rear axle.

Both front and rear, Integral Active Steering adjusts the steering angle

through an electric motor masterminded by a control unit receiving data

on wheel rotation speed, movement of the steering wheel, the yaw rate

and lateral acceleration to ensure optimum steering behaviour under all

conditions.

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Bmw 5 Bedienungsanleitung Seite 24