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Saturday, January 26, 2008

Audi Q7 In Depth

New ESP generation

All Audi Q7 models are equipped with a latest-generation electronic stabilisation programme. This includes the antilock brake system ABS with electronic brake force distribution EBD and hydraulic brake assist which automatically increases brake power when the driver applies the brakes in an emergency. The traction control system ASR and the electronic differential lock EDL, in conjunction with yaw control, form the basis of the ESP safety concept.

Important for other road users: if the driver brakes hard in extreme situations the ESP warns following traffic accordingly by switching on the hazard warning lights. If the driver activates the off-road mode with the ESP button, the traction of the Q7 is substantially enhanced by means of modified control settings.

Also important � particularly for off-road operation, is the hill descent assist feature. It automatically keeps the speed constant when driving slowly on steep downhill stretches, allowing the driver to concentrate on steering the vehicle. The roll stability program (RSP) intervenes during critical driving manoeuvres that could cause the vehicle to overturn and takes the necessary corrective braking action.

Large vehicles are not infrequently used to tow trailers � with a trailer weight of up to 3,500 kg the Q7 is clearly destined to be used this way.

With this is mind, another function is an indispensable safety feature � the trailer stabilisation system. Often at cruising speed, and even when driving straight ahead, minor lateral movements build up, causing the trailer to sway dangerously as a result. The ESP trailer stabilisation function identifies this situation and effectively stabilises the outfit by means of automatic brake intervention.

Equipment: high tech for safety and comfort

The Audi Q7 sets trends not only with its powertrain and driving dynamics but also as a technology carrier. It introduces electronic systems in standard production that provide the driver with important information with a view to enhancing active safety.

adaptive cruise control with collision warning system

A new generation of the radar-assisted distance control system, adaptive cruise control plus, is being introduced in the new Audi Q7. As an extension of conventional adaptive cruise control, the system now controls distance and speed from 0 to 200 km/h. It is therefore able to brake the vehicle to a standstill behind the vehicle ahead. The benefits of this sensitive control function � particularly in slow-moving traffic � are quite clear.

The sensor for the system is located out of sight behind the licence plate trim. By taking continuous differential measurements it determines whether distance and speed in relation to the car in front have changed, and adjusts the vehicle抯 own speed by manipulating the accelerator or brakes accordingly.

Audi development engineers have deliberately designed the system, in respect of possible acceleration and deceleration, as a convenience system.

In addition, the driver can alter vehicle acceleration and control response via the MMI, opting either for a dynamic or more comfort-oriented emphasis.

The collision warning system is being introduced for the first time on the Q7. It uses the sensors of the adaptive cruise control function and has a range of up to 180 metres. If there is the risk of a collision with the car in front, the system alerts the driver in two stages: first a warning tone is issued, with an optical signal appearing on the instrument panel at the same time. If the driver does not react, the system triggers a clearly noticeable warning jolt, produced by a fast build-up of pressure in the brake system. The purpose of the jolt is to draw the driver抯 attention immediately to what is happening on the road in front of the vehicle.

The collision warning system is the first example of a new generation of assistance systems that provide extra protection for the driver by monitoring the surrounding area.

Audi side assist

Incorporating radar sensors, Audi side assist monitors the area next to and behind the vehicle to warn the driver � additionally to the image in the rear-view mirror � of any approaching vehicles. The driver is alerted by a warning light on the outside mirror, followed by an additional acoustic signal should he/she nevertheless switch on the direction indicator.

The sensors have a range behind the vehicle of 50 metres and have also been designed to monitor the blind spot next to the vehicle. The system can be switched on and off at the touch of a button and operates from a speed of
60 km/h. Audi side assist does not intervene in the driving and control functions.

MMI and Infotainment

Still a benchmark with regard to intuitive operation � the integrated user interface MMI, the multi-media interface in the new Audi Q7. Already established in the Audi A8 and A6, the infotainment platform is notable for its ease of operation, perfect positioning and consistent inherent operating logic.

The system is available in three configurations: the standard MMI basic, the MMI basic plus and the MMI.

Even the standard equipment version of the Q7 is equipped with MMI basic comprising a terminal, monochrome display as well as an integrated radio and single-disc CD player. Music output is via a 4x20-Watt amplifier and four speakers in the doors. As well as the radio system and broadcasting of traffic information, numerous vehicle functions such as the air conditioning and interior light configuration can be controlled by the MMI basic.

The option MMI basic plus offers additional functions such as TP memory, a digital sound system with a total of 11 speakers and a CD-based navigation system.

In the optional version with the full range of features, the MMI comes with a 7-inch colour monitor, a double tuner and a 6-disc CD changer. On request the MMI can be rounded off with a DVD navigation system.

A further extra, which can be combined with the MMI and the MMI basic plus, is the all-new BOSE surround sound system.

Cornering lights and daytime running lights

Already featured on the A8 and A6, some highly innovative technology will be found under the clear-glass covers of the Q7抯 front headlights: the combination of the dynamic cornering light system adaptive light, energy-saving daytime running lights and xenon plus technology � an offer unequalled by competitors.

The headlights of the new Q7 are available in three versions: standard free-form halogen lights, xenon plus lights with daytime running lights or additionally in conjunction with adaptive light dynamic cornering lights. The ellipsoidal module for dipped and main-beam headlights swivels according to the angle of each road and bend. This distinctly improves illumination of the road in the direction of travel and of the side area, making predictive driving even simpler.

parking system plus and advanced

Three parking assistance systems are available as options on the Audi Q7. The Audi parking system aids the driver when approaching obstacles, using four sensors at the rear and an acoustic warning signal. The parking system plus monitors both front and rear areas around the vehicle and alerts the driver to a potential collision during parking manoeuvres also by means of a bar chart in the MMI display.

In addition to these options, the Audi parking system advanced features a rear-view camera; the images captured appear on the MMI screen. Parking lines projected on to the camera image provide extra support for the driver when manoeuvring into parking spaces. Audi is introducing this option in its programme for the production launch of the Q7.

Access and authorisation system: advanced key

Drivers of the new Audi Q7 with an automatic transmission will seldom have to use their car key: 揳dvanced key� is the name of the optional system that functions as an electronic access and authorisation system.

The key � which can remain safely in the pocket � has an electronic pulse transmitter and its signal is registered and verified by a proximity sensor in the door. If identified, the doors are unlocked as soon as the driver pulls the door handle.

The central locking system can be activated and deactivated at every door on the vehicle. The driver merely has to have the key on his/her person within a range of around 1.5 metres of the vehicle and pull the door handle. If required, the passengers can also open the door first. Via the MMI you can choose whether the central locking should release only the door opened manually or whether all doors should be unlocked.

Before starting out, the steering and ignition are released electronically with advanced key, through wireless remote control. Provided the driver has the key on his or her person inside the vehicle, the steering is released by lightly pressing the starter button. At the same time, the ignition is turned on and the electronic immobiliser released.

The engine is then started by pressing the starter switch in the centre console once again. For safety reasons the automatic selector lever must be in position P or N, while the driver operates the foot brake at the same time.

Air and light: open sky system and 4-zone climate control

The open sky system, available as an option, gives all occupants a feeling of generous spaciousness and ensures an excellent supply of fresh air, along with a high level of versatility. The large panorama glass sunroof extends in three segments, reaching virtually from the front roof edge to the third seat row. The front segment of the 1.6 square metre open sky system can be raised and moved to the rear electrically. The rear segment is designed as a tilting roof.

Two roller blinds provide sun protection whenever required. Each element can be operated by occupants seated in the first and second row. The acoustic qualities of the open sky system are also exemplary; the drumming noise typical of many a sliding/tilting roof during a journey remains absent in the Audi Q7 thanks to precision work undertaken in the wind tunnel.

The well-being of all occupants can be enhanced with automatic high-comfort 2-zone climate control. In addition to separate air distribution and temperature control for the driver and front passenger, it also offers draught-free indirect ventilation and an air quality sensor. Other features: the residual heat function, automatic air recirculation and additional ventilation at the rear via the door pillars.

In addition, the Audi Q7 can be ordered with automatic high-comfort 4-zone climate control, an option that provides individual climate zones for rear-seat passengers. Temperature, air distribution and air volume can be adjusted separately for the left and right side. On top of this, an additional evaporator � located behind the luggage area trim � ensures consistent and steady cooling, even in the third row of seats.

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