Audi A8 2019 - Functions Influencing the Transmission and Sport Differential

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Audi drive select
Functions influencing the transmission and sport dierential
Audidriveselect can be used to choose between dierent
vehicle driving modes. The following Audi drive select
modes can be selected by pressing the Audi drive select
button or via the MMI.
comfort mode
Transmission:
The TCM behaves in the same way as in auto mode.
Sport dierential:
The set-up for the sport dierential is moderate, steering
behavior is not adjusted for faster response.
dynamic mode
Transmission:
If dynamic mode is selected, the TCM activates the sport
program (selector position S). In dynamic mode the selec-
tor positon D can be selected at any time.
If selector position D is activated before shutting o the
engine, selector position (D) is again activated when the
engine is subsequently started
1)
. If the driver wants to have
selector position S, he must select this.
Sport dierential:
The torque redistribution set-up provides for highly respon-
sive steering with a slight tendency to ovesteer. Only in the
event of pronounced oversteer is the torque redistributed
to stabilize the vehicle on the rear axle.
individual mode
The menu item “Drivetrain” encompasses the engine, the
transmission and the sport dierential. The driver can
select from ecient, balanced and sporty options under
this menu item.
These following drive select modes are assigned to these
options:
› Balanced, equivalent to the auto mode of Audi Drive
select.
› Sporty, equivalent to the dynamic mode of Audi Drive
select.
auto mode
Transmission:
The shift points in selector positions D and S are selected
according to the driver type recognition characteristics. For
this purpose, the system evaluates the way in which the
vehicle is being driven. The system factors in the way in
which the brake and accelerator pedals are applied as well
as the transverse and longitudinal acceleration of the
vehicle within defined periods.
Accordingly, an economical driving style leads to early
upshifts and late downshifts. A sporty driving style is made
possible by late upshifts and early downshifts.
The driving phases in which the driver adopts an ecient,
economical, sporty or manual driving style can be accessed
using the VAS Scan Tool.
Selector position D:
The shift points are selected in a comfort-oriented way
after taking account of the determined driver type.
Selector positionS
1)
:
In selector position S the TCM runs in sport mode. The shift
points are selected in the sport mode after taking account
of the ascertained driver type and are adapted to the per-
formance range of the engine. The shift times vary from
normal, with barely perceptible gear shifts, to short, with
noticeable gear shifts.
If the vehicle is equipped with an eciency assist system,
the driver does not receive any information in sport mode
via the symbols of the eciency assist system.
Sport dierential:
The set-up for the sport dierential is balanced. The adjust-
ment to steering behavior ensures neutral handling. The
vehicle is stabilized if a pronounced oversteer is detected.
1)
The vehicle is always restarted in the combination of Audi drive select mode auto and selector position D.
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