Multi - plate clutch 1
Multi - plate clutch 2
Semi -gearbox 2
(2nd, 4th, 6th gear)
Semi -gearbox 1
(1st, 3rd, 5th, 7th, R gear)
Differential
P DK function diagram
is established, and power is
transmit ted to the wheels.
The gear which is engaged is
displayed on the instrument
cluster. Depending on the
gearshif t programme, the gear
change is optimised for comfort
or for sport y handling and takes
place in a mat ter of milliseconds.
The advantages over a fully
manual transmission are very PDK is enhanced by the ‘Launch
Control’ and ‘motorsport- derived
gearshift strategy’ functions (p. 62).
In essence, PDK combines
sportiness with ef ficiency and
comfort. What does all this
mean for you? Exactly what you
would expect: uninterrupted
driving pleasure.
Porsche Doppelkupplung (PDK)
in detail.
The crankshaf t transmits engine
torque to the dual-mass fly wheel
which is then channelled through
the clutch housing and onto the
multi-plate clutches, or to be more
precise, the outer disc carrier.
Under oil pressure, clutch 1 closes
and forms a frictional connection rapid gearshif ts with no
interruption in the flow of power,
which result in a considerably
faster rate of acceleration for the
same rate of fuel consumption.
The advantage over a fully
automatic transmission is the
perceptible increase in driving
dynamics – with a similar level of
comfort, and a distinct reduction
in fuel consumption.
with input shaft 1. The torque is
now transmit ted through the
dif ferential to the rear axle.
At this stage, PDK has already
preselected the next gear.
Engine torque is already acting
on the other outer disc carrier
and, in response to a gear change
signal, the overlap shift is
initiated, i.e. as clutch 1 opens,
clutch 2 closes. The non-positive
connection with input shaf t 2 The compact dimensions of the
gearbox reduce rotational masses
which means that the engine
response is more direct and the
system is more light weight.
This, along with the long-ratio 7th
gear, helps to achieve reduced
fuel consumption and emission
figures comparable with those
of a manual gearbox. With the
optional Sport Chrono Package,
Cayman | Drive
50
46
2
1
R
7 3
5
51
4
6
2
R1
3
7
5
Cayman SBi -Xenon headlights with dynamic cornering lights and LED day time running lights Night design, rear
Night design, front
There can be no driving pleasure without peace of mind.
Introducing the safety features of the Cayman models.
The low front fog lights of fer
outstanding illumination and a
high -level third brake light is
neatly integrated into the rear
window. LED technology is used
in the taillights, brake lights and
rear fog light to provide bet ter
illumination and respond more
quickly to driver input.
Bi-Xenon headlights with
dynamic cornering lights and
LED daytime running lights.
Available as an option for the
Cayman models are Bi-Xenon
headlights including dynamic
cornering lights and LED day time
running lights. Bi-Xenon headlights
are around t wice as powerful as
halogen headlights so they of fer
improved visibilit y and illuminate
the road more evenly. In fact, they
are so ef fective that fog lights are
no longer necessary. A headlight
cleaning system is built-in.
Dynamic cornering lights of fer
particularly effective illumination
of the road ahead, particularly
through bends. Sensors continu -
ously monitor the speed, lateral
acceleration and steering
lock and, from these variables,
calculate the course of the bend.
This determines the angle of
the dynamic cornering lights, with
the lights able to swivel towards
the inside of the bend up to a
limit of 15 degrees, even with the
main beam switched on.Active safety.
Active safet y is a topic that
Porsche actively supports. With
generous safet y margins, even
the suspension tuning makes a
decisive contribution. Optimum
acceleration enables rapid
overtaking and optimum braking
minimises stopping distances.
Safe contact with the road is
provided not only by the wheel/
t yre combination but also by the auto - deploying bi-plane rear
spoiler and aerodynamic front end.
Another important standard
safet y feature is Porsche Stabilit y
Management (PSM, p. 72).
See and be seen. This is a
slogan that t ypifies the headlights
concept. The design is unmistak -
able, the brightness unmissable.
The halogen headlights with LED
position lights in the front light unit
ensure clear visibilit y at all times.
Cayman | Safet y
6667
