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Porsche Stability Management (PSM).
Porsche Stabilit y Management (PSM) is fit-
ted as standard. This system automatically
maintains stability even at the limits of
dynamic driving performance. Sensors
continuously monitor the speed, yaw
velocit y and lateral acceleration of the
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Chassis
therefore achieved much sooner. Brake
assist detects a panic braking situation
and generates the brake pressure
required for maximum deceleration.
precharging of the brake system and
brake assist. If you suddenly release the
accelerator pedal, PSM automatically
prepares for your next action: the braking
system is precharged so that the brake
pads are already in light contact with the
brake discs. Maximum braking power is
If you prefer an ever sportier drive, PSM
can be switched off. For your safet y,
however, PSM remains set to intervene if
the vehicle is braked and ABS assistance
is required. ABS and ABD remain switched
on at all times. Also included with PSM
are engine drag torque control (EDC),
Under acceleration on wet or low-grip
road surfaces, PSM improves traction –
as well as agilit y and safet y – using the
automatic brake differential (ABD) and
antislip regulation (ASR). Integrated ABS is
designed to minimise braking distances. car. Using this information, PSM is able
to calculate the actual direction of travel
at any given moment. If the car begins
to oversteer or understeer, PSM applies
selective braking on individual wheels in
order to restore stability.
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1 Dynamic gearbox mountsIn conjunction with optional PCM, the
G -Force graphic on the TFT screen in
the right-hand circular instrument enables
you to view the lateral and longitudinal
forces as they act on the vehicle.
Using the SPORT or SPORT PLUS but ton
you can switch the dynamic gearbox
mounts from ‘Normal’ to ‘Sport ’ or
‘Per formance’ mode and intensif y your
driving pleasure. This results in greater traction, perceptibly
more stable handling under load change
conditions and in fast corners and, in
conjunction with the ‘Launch Control’
function for example, extremely fast
acceleration.
Dynamic gearbox mounts minimise this
effect. Steering angle and both longitudi
-
nal and lateral acceleration are constantly
recorded by sensors. The stiffness and
damping performance of the gearbox
mounts adapt to changes in driving st yle
and road surface conditions, which is
achieved by use of a fluid with magnetic
properties.
Put more simply: when you are driving
into a bend, the vehicle will follow your
steering but, at first, the mass of the
drivetrain will not. This means that the
rear of the vehicle will ultimately be
pushed out wards as a result of the drive -
train’s force of inertia.
of the entire drivetrain, especially the
engine.
The gearbox is bolted to the body by t wo
mounts. Like any mass, it obeys the law
of inertia. This means that it will continue
moving in a uniformly straight line unless
some force causes it to change direction. Dynamic gearbox mounts.
Dynamic gearbox mounts are included
as part of the optional Sport Chrono
Package. They are designed to enhance
both performance and comfort.
The electronically controlled system
minimises the oscillations and vibrations
