Audi Roadjet Concept
Audi is taking the wraps off a study car by the name of Roadjet Concept at the North American International Automobile Show. A vehicle that blends the latest evolutionary stage of Audi's formal idiom with an entirely new space concept. The drive technology, too, represents a new departure: on the 300 bhp 3.2 FSI engine, innovative concepts produce an unprecedented synthesis of performance, liveliness and efficiency. In conjunction with a longitudinally installed engine, the Audi Roadjet Concept is moreover the first model to feature the sporty 7-speed Direct Shift Gearbox. It also features a new car-to-car communication system.
The study car also serves as a technology demonstrator of innovative electronic systems that will be finding their way into production models in the next few years.
One particular innovation that enhances driving fun is Audi drive select: this system enables the driver to preselect several entirely independent vehicle characteristics at the push of a button.
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Three modes "” "comfort", "dynamic" and "sport" "” alter the steering, damping and transmission response, as well as the engine map. Audi drive select thus provides access to highly distinct driving experiences that can be realised by a single vehicle, entirely as the driver sees fit.
Outside
The styling of this four-door fastback saloon is a new, distinctive interpretation of Audi design. Measuring 4.70 m in length and 1.85 m in width, the Audi Roadjet Concept respects the standard dimensions of a B-segment vehicle. However, its height of 1.55 m and the wheelbase of 2.85 m result in substantially greater spaciousness, and also give this car fundamentally new basic proportions.
Slim roof posts and the raked rear window combine with the coupé-like roof line in producing a highly dynamic silhouette. A roof spoiler above the large rear window helps to maintain good surface contact, while visually extending the arc of the roof even further to the rear.
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Modernity and functionality, dynamic elegance and open perspectives: this is the most immediate impression of the Audi Roadjet Concept's interior. Warm, subdued earth colours contrasting with the light grey of precision metal applications create an atmosphere pitched somewhere between elegant functionality and emotional appeal. This impression is enhanced by the combining of purely functional materials such as Neoprene, at floor level, with exclusive leather.
This vehicle interprets the architecture of the Audi interior in a novel way. The characteristic features include the stimulating interplay of proportions and dynamism. The instrument panel envelops the driver's and front passenger's seats in a wide, horizontally split arc. The controls and displays in the dash panel and on the centre console come across on the one hand as organically integrated and on the other as neatly structured and functional.
Inside
The four individual seat pans, almost filigree in appearance and featuring integral head restraints, divide up the interior into four separate zones. Between the rear seats there is a system of rails that can accommodate options that include a storage box with centre armrest, an espresso machine or a baby carrier facing to the rear.
The rear seats themselves can be adjusted along diagonal rails; when opened out into their frontmost position, a centre child's seat can be installed obliquely behind the rear seats if required. This centre child's seat is guided on rails on the movable luggage compartment floor. It can be folded over and easily removed to the rear.
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The load area can be enlarged by folding the rear seat backs forward. The electrically operated movable load area floor pivots automatically to the rear, beyond the bumper, appreciably facilitating loading of the vehicle. The rail system integrated into the load area floor incorporates lashing points that can be used to secure the child seat or lash down items being carried, before the load area floor is moved forward again electrically, back into the vehicle.
A Bang & Olufsen sound system purpose-developed for the Roadjet Concept provides an audio quality worthy of the concert hall. As on the A8, 14 speakers - including the extendable tweeters on the instrument panel - and an amplifier output of more than 1,000 watts produce an acoustic experience that is without equal in the automotive world. If desired, the front and rear passengers can also listen to music via Bluetooth headphones.
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The Multi Media Interface (MMI) has been reconfigured in the Audi Roadjet Concept. In addition to the central 10-inch display in the instrument cluster, there are separate displays and operating units for the front and rear passengers - including a 7-inch display on the backs of the front seats for the rear passengers. An entirely new technology makes its debut here: the front passenger views information on a back-projection display on the instrument panel, which also allows them to watch TV while the car is moving. To avoid distracting the driver, this display is screened off by a shield that extends automatically out of the instrument panel.
The Roadjet Concept does not have traditional sun visors; instead, this function is performed by the use of Vari-Light technology along the upper edge of the windscreen: the degree of transparency of the glass - and therefore of light screening - can be varied electrically, thus enabling the driver to prevent any undesirable glare.
There is a further convenience feature in the rear centre armrest. On the Detroit showcar, it incorporates an espresso machine complete with water reservoir, stable cup holders for four cups and accessories. The occupants can now always enjoy a fresh cup of coffee whenever they wish, for instance during a break or while sitting in a tailback - an enticing alternative to lukewarm beverages out of a flask, and one that is bound to appeal not just to coffee connoisseurs.
Direct Shift Gearbox
The Audi Roadjet Concept is the first Audi model to feature a sporty Direct Shift Gearbox with twin clutch in conjunction with a longitudinally installed engine. It combines the advantages of a 7-speed manual gearbox with the qualities of a modern automatic transmission, thus providing a drive concept superior in every respect. The driver benefits from supreme agility and driving pleasure combined with harmonious and dynamic acceleration without interruptions to the flow of power from the engine.
This is coupled with good economy thanks to low fuel consumption, and convenient operation.
The basis for this new development is a three-shaft 7-speed manual gearbox which offers considerable variability in the selection of the transmission ratio. Thanks to the use of a twin multi-plate clutch with ingenious electro-hydraulic control, two gears can be engaged at the same time.
Car-to-car communication"¨"¨The electronics developers have focused on safety and traffic control in the Audi Roadjet Concept, as well as on driving pleasure. It features a prototype of a future generation of information-processing systems that herald in a new era in road traffic networking specifically in countries with high volumes of traffic.
At the heart of this concept is car-to-car communication, meaning the direct exchange of information within the flow of traffic. Unlike the telematics systems of the recent past, no central service is now needed to consolidate and process the information swiftly and effectively.
Example 1: safety. A vehicle has skidded on a slippery surface on a blind bend and is hanging half in a ditch, at right-angles to the flow of traffic. It is now unable to move unassisted. Other vehicles are swiftly approaching the obstruction but their drivers are unable to see it. With the new communication technology, the stranded vehicle will transmit a warning signal which - thanks to the network established with the vehicle's on-board navigation system - also indicates the location of the hazard. A corresponding warning simultaneously appears on the navigation screens of the approaching vehicles, indicating the location of the accident - the risk of a collision is thus substantially reduced.
Example 2: traffic flow. Lines of vehicles are moving between sets of traffic lights on a multi-lane arterial road. The cars accelerate, only to have to brake again when the lights turn red. Such a driving style is not only fatiguing for the individual driver, but also means that thousands of litres of fuel are wasted along every kilometre of such roads in the long term, by the traffic as a whole; it furthermore significantly inflates exhaust emissions in conurbations.
Car-to-car technology means that the cars are not only able to establish a network with each other, but also pick up information from static transmitters such as the traffic lights' control systems.
The phases of each set of traffic lights can thus be transmitted, giving drivers an opportunity to anticipate more accurately how much acceleration is necessary or appropriate. The same applies to impending congestion: using data from cars further ahead, the systems can recommend what speeds drivers should adopt in order to keep the traffic flowing.
Example 3: service. When driving through a city centre, a driver has selected the local shopping centre as the destination for the navigation system. There is a chronic shortage of parking spaces around that destination. Here too, the new technology is able to help: the mobile system uses the coordinates for the destination to link up with the parking spaces management system for the area around the destination. If a nearby vacant parking space is reported by static facilities, such as at a multi-storey car park, the navigation system can automatically take this into account and simultaneously reserve the space in that car park. The driver is guided to their destination by the shortest and most convenient route, instead of having to drive round in circles endlessly hunting for that elusive parking space.
The number of variations on these examples is almost limitless, illustrating the huge potential of the new technology in promoting safety, flexibility and efficiency as the volume of traffic on our roads increases."¨