Audi RS 7 Service Manual download pdf (Page 15)

28 quattro®

Those who know Audi know quattro. And once

you have driven with the permanent all-wheel

drive from Audi, you won’t drive with anything

else. Why? Because almost no other drive system

around transfers engine power to the road so

directly.

The central component of the quattro drivetrain

on the Audi RS 7 Sportback is the self-locking

centre differential. With its consistent light-

weight construction, a weight advantage has

been achieved over the previous version. The

purely mechanical planetary transmission

distributes the drive torques asymmetrically

between the front and rear axle in a 40 : 60 ratio

for better driving dynamics in the basic design.

But if necessary up to 70 % can be distributed to

the front or up to 85 % to the rear to offset any

occurring wheel slip.

In conjunction with the wheel-selective torque

control, the drive force is distributed to each

individual wheel according to the driving situation.

What is special here is the way the effects of the

torque distribution are felt before undesirable

wheel slip occurs. This allows a yaw moment to

be produced, which supports cornering.

The result is precisely controlled and sporty

handling with increased agility and superb

traction at the same time.

By request the quattro drivetrain can be fitted

with sports differential on the rear axle, in order

to further enhance driving dynamics.

Why only use two wheels

when a car has four?

The quattro® permanent all-wheel drive.

The fuel consumption and CO₂ emission figures as well as the efficiency class can be found on page 56.

The self-locking

centre differential

distributes the drive force

between front and rear axle

purely mechanically. Up to

70 % to the front axle and up

to 85 % to the rear axle, as

required.

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Audi RS 7 Service Manual Page 15

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