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Porsche Active Suspension
Sensors monitor the movement of
Management (PASM).
the vehicle body, for example, under
heavy acceleration and braking or
The optional PASM is an electronic
on uneven roads. The control unit
damping control system. On the
tunes the dampers to the optimum
new Boxster models, the suspen-
hardness for the selected mode
sion has been tuned to match the
to reduce roll and pitch still further
increased power of the engine.
and to increase contact between
PASM actively and continuously
each individual wheel and the road.
regulates the damping force for
each wheel according to the road
In 'Sport' mode, the suspension is
conditions and driving style. In
set to a harder damper rating. On
addition, the suspension is lowered
uneven roads, PASM immediately
by 10 mm.
switches to a softer rating within
the 'Sport' setup range, thereby
The driver can select between two
improving contact between the
different modes: 'Normal' which
wheels and the road. When the
is a blend of performance and
road surface improves, PASM
comfort, and 'Sport' where the
automatically reverts to the
setup is much firmer. The PASM
original, harder rating.
control unit evaluates the driving
conditions and modifies the damp-
If 'Normal' mode is selected and
ing force on each of the wheels
the driver's style becomes more
in accordance with the selected
assertive, PASM automatically
mode.
switches to a harder rating within
the 'Normal' setup range. Damping
becomes harder, and driving
stability and road safety are
increased.
Mechanically locking rear
differential.
Are you a fan of sporty driving?
In your spare time, do you enjoy
the occasional outing on the
racetrack? Then you shouldn't
do without the new optional
mechanically locking rear differ-
ential available in conjunction
with 18-inch or 19-inch wheels.
It further enhances the traction
of the driven rear wheels on
uneven roads and when acceler-
ating out of tight bends. Road
holding at the limits of perfor-
mance is even more impressive.
The car holds its course better
and so PSM intervenes less often.
In other words, sheer driving
pleasure and faster lap times.
· 54 ·
Compression in 'Normal' mode –
Rebound in 'Sport' mode – working
working piston and bypass, sporty-
piston only, sporty-comfortable tuning
comfortable tuning
Compression in 'Normal' mode – working
Rebound in 'Sport' mode –
piston and bypass, sporty-hard tuning
working piston only, sporty-hard
tuning
· 55 ·
Boxster |
Chassis
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