Roll-over sensor for enhanced passive safety
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CayenneThe Porsche Cayenne is entering its second generation with fresh, powerful design and a new engine:
Improved transmission and new Sports Button The Cayenne comes as standard with a six-speed manual gearbox reinforced versus the former version. Six-speed Tiptronic S automatic transmission now also developed to an even higher standard is available as an option. The manual gearbox is combined as a regular feature with the PDOA Porsche Drive Off Assistant securing the vehicle when disengaging the clutch by automatic intervention in the brakes so that the Cayenne cannot roll back on a hill. Tiptronic S automatic transmission offers a comparable holding function, the Hill Holder preventing the vehicle from rolling back when setting off on an uphill gradient. For the first time, the driver of the new Cayenne is able to enjoy the qualities of a Sports Button featured as standard, allowing him to choose either a Standard or Sports set-up on the suspension. In the Sports mode the engine responds even more spontaneously. And with models featuring automatic transmission, air suspension and PASM Porsche Active Suspension Management, as well as new PDCC Porsche Dynamic Chassis Control available as an option, come with an even more sporting set-up from the start. PDCC for new, active body roll management The Cayenne comes in regular trim with steel spring suspension, PASM Porsche Active Suspension Management with air springs being available as an option. Apart from damper control with three different settings, this superior suspension also enables the driver to lower the body of the vehicle to various levels or to raise body height up to a maximum of 271 millimetres or 10.7" above the ground for tough offroad requirements. As yet a further feature, PASM including air suspension may now be enhanced by the new PDCC Porsche Dynamic Chassis Control. Operating in a continuous process with infinite adjustment, this body roll management system limits side roll of the vehicle in bends, eliminating body roll completely in nearly all driving situations. As a result, the Cayenne offers not only a significant improvement of handling, but also enhanced driving stability and motoring comfort. PDCC is made up of two active rollbars with hydraulic swivel motors integrated in lieu of conventional antiroll bars in the front and rear axles. Thanks to its fast response and maximum operating pressure of up to 180 bar, PDCC is able to build up a counter-force through the active rollbars preventing the body from rolling to the side in a bend. PTM for excellent traction As before, PTM Porsche Traction Management ensures an ideal combination of excellent on-road and offroad driving qualities by subdividing engine power in the basic mode at a ratio of 38:62 between the front and rear wheels. This power split may be varied by a multiple-plate clutch operated by an electric motor and controlled electronically, with up to 100 per cent of engine power and torque being conveyed to either the front or rear wheels when required. PTM responds not only to a lack of traction, but also incorporates sensors measuring the speed of the vehicle, its lateral acceleration, the steering angle and operation of the gas pedal in order to ensure enhanced control under dynamic driving conditions. And on rough terrain PTM may also interact with the low gear integrated in the power divider with its reduction ratio of 2.7:1 and a 100 per cent longitudinal lock cutting in when required, should individual wheels loose contract with the ground. PSM with an even wider range of functions PSM Porsche Stability Management featured as standard in the Cayenne constantly inter-acts with PTM Porsche Traction Management, but only intervenes when the vehicle reaches its physical limits on the road. A subfunction of the anti-lock brake system determines application of the brakes on loose ground, offroad-ABS periodically increasing wheel slip in such cases during the brake cycles. This serves to build up a wedge of snow, sand or fine gravel in front of the wheels, providing an additional brake effect on loose ground and irregular surfaces. The brake function is significantly improved by the new Brake Assistant and the brake pre-loading option. Recognising application of the brakes in an emergency, the Brake Assistant immediately builds up the brake pressure required for maximum stopping power and deceleration via the PSM hydraulic control unit. The preloading brake function, in turn, generates extra pressure in the system as soon as the driver abruptly takes his foot off the accelerator, thus helping again to shorten stopping distances when applying the brakes. Trailer stability control enhanced to a new standard of perfection recognises any pendulum or sway motion of a trailer and intervenes as required by applying the brakes on the vehicle in the interest of extra stability. Passive safety further enhanced Two full-size airbags for the driver and front passenger, two thorax side airbags, as well as two curtain airbags in the roof frame extending over both the front and rear side windows ensure an exceptionally high standard of passive safety within the interior. In addition, belt latch tensioners on all seats with the exception of the middle seat at the rear and supplementary belt force limiters on the front seats add to the high standard of allround safety. Apart from collisions both front and rear and at the side, the crash sensors now for the first time also "sense" the risk of the vehicle rolling over. This additional function is provided by a new yaw rate sensor in the airbag control unit activating the belt latch tensioners and curtain airbags in an emergency. Attractive features and equipment The Cayenne is available as an option with bi-xenon headlights in combination with a static and dynamic bend headlight swivel function enhancing active safety to an even higher standard. The new dynamic headlight function is activated as of a speed of 3 km/h or 2 mph, ensuring even better illumination in bends and on winding roads, while the static bend head-lights provide excellent visibility directly in front of the vehicle. It almost goes without saying that Porsche's Sports Utility offers a wide range of options and freedom of choice also in its second generation. The automatic tailgate available as an option, for example, enables the user to open up and close the tailgate conveniently at the touch of a button. New storage compartment management also available as an option and, inter alia, comprising a system of rails integrated in the floor of the luggage compartment as well as a partition net in the rear, enables the driver and his passengers to stow away luggage and other items even more safely in the rear compartment of the Cayenne. Yet another new feature is attractive leather upholstery available as an option in black/chestnut brown natural leather.
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The "basic" version of Porsche's Sports Utility
is now powered by a 290 bhp (213 kW) six-cylinder increased in size from
3.2 to 3.6 litres. Compared with the former V6, this gives the new Cayenne
an extra 40 bhp (29 kW). This extra power results to a large extent from
direct gasoline injection also improving the vehicle's all-round economy.
Under real-life driving conditions, the new Cayenne models allow a reduction
of fuel consumption by up to 15 per cent.