Audi Vorsprung durch Technik

Audi TT offroad concept

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Concept car at 2014 Auto China in Beijing

The Audi TT offroad concept breaks the mold, combining the sportiness of a coupe with the lifestyle and utility of a compact SUV. The four-door model, which Audi is presenting at the Beijing International Automobile Exhibition, adds an entirely new expression to the Audi design language. Its plug-in hybrid drive with two electric motors and a system output of 300 kW (408 hp) provides for dynamic performance, yet consumes on average just 1.9 liters of fuel per 100 kilometers (123.8 US mpg).

Audi TT offroad concept
Audi TT offroad concept

The Audi TT offroad concept 

“The Audi TT offroad concept provides a glimpse of how we might imagine a new model in the future TT family*,” says Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development. “It combines the sporty genes of the TT with the strengths of a compact Audi SUV. Its plug-in hybrid drive with the option of inductive charging is a major step toward the mobility of the future. We chose to present the Audi TT offroad concept in China, our second domestic market, because it represents the urban mobility of tomorrow: It is sustainable, dynamic, intelligent and connected.”

Audi TT offroad concept
Audi TT offroad concept

The plug-in hybrid drive

The plug-in hybrid drive in the Audi TT offroad concept delivers 300 kW (408 hp) of system output and 650 Nm (479.2 lb-ft) of system torque. The show car accelerates from 0 to 100 km/h (62.1 mph) in 5.2 seconds and reaches the electronically governed top speed of 250 km/h (155.3 mph) without any trouble. It consumes just 1.9 liters of fuel per 100 kilometers (123.8 US mpg), a CO2 equivalent of 45 grams per kilometer (72.4 g/mile). The Audi TT offroad concept can drive over 50 kilometers (31.1 miles) solely on electric power and thus with zero local emissions, and has a total range of up to 880 kilometers (546.8 miles).
The combustion engine is a 2.0 TFSI producing 215 kW (292 hp) and 380 Nm (280.3 lb-ft) of torque. The two-liter, four-cylinder unit with the large turbocharger is packed with Audi's potent efficiency technology. At part load, indirect injection supplements gasoline direct injection for lower fuel consumption. The exhaust manifold is integrated into the cylinder head – the foundation for the high-performance thermal management system.

A separating clutch links the transverse 2.0 TFSI to an electric motor producing 40 kW and 220 Nm (162.3 lb-ft) of torque. The slim, disc-shaped electric motor is integrated into the six-speed e-S tronic. The dual-clutch transmissions sends the torque to the front wheels. Mounted on the rear axle of the Audi TT offroad concept is a second electric motor independent of this drive unit. This produces a maximum of 85 kW and 270 Nm (199.1 lb-ft).


In front of the rear axle is a liquid-cooled, lithium-ion battery comprising eight modules. It contributes to the balanced 54:46 weight distribution between the front and rear axles and to the low center of gravity. The battery stores up to 12 kWh of energy, enough for an electric range of 50 kilometers (31.1 miles). An Audi wall box, which manages the energy feed conveniently and intelligently and can deal with a variety of voltages and outlets, is used for stationary charging.

The show car is also designed for use with Audi Wireless Charging technology for contactless inductive charging. The infrastructure side – a plate with a coil and an inverter (AC/AC converter) – is placed on the parking spot of the Audi TT offroad concept and connected to the power grid. The charging process begins automatically when the car drives onto the plate. The alternating magnetic field of the infrastructure side induces a 3.3 kW alternating current across the air gap in the secondary coil, which is integrated into the vehicle. The current is inverted and fed into the electrical system.


Charging stops automatically when the battery is fully charged. It takes about as long as charging via a cable, and the driver can interrupt the process at any time. The Audi Wireless Charging technology is more than 90 percent efficient, and is not affected by weather factors such as rain, snow or ice. The alternating field, which is only generated when a car is on the plate, is not harmful for people or animals.

Audi TT offroad concept
Audi TT offroad concept

Driver assistance systems

The Audi TT offroad concept show car features two Audi driver assistance systems that are almost ready for production: the intersection assistant and online traffic light information technology. The intersection assistant aims to help to avoid side-impact collisions, or reduce their severity, where lanes merge and at intersections. Radar sensors and a wide-angle video camera scan zones to the front and sides of the car. If the system detects a vehicle approaching from the side and assesses it to be critical, graduated warnings are displayed in the Audi virtual cockpit.

Online traffic light information is a technology that connects the Audi TT offroad concept via the cell phone network to the central traffic computer, which controls the traffic light systems in the city. Based on the information from this system, the Audi virtual cockpit shows the driver what speed to drive in order to reach the next traffic light while it is green. The cockpit displays the time remaining when waiting for the light to turn green.

Audi TT offroad concept
Audi TT offroad concept

Exterior design

4.39 meters (16.2 ft) long, 1.85 meters (6.1 ft) wide and a wheelbase of 2.63 meters (8.6 ft) – in these dimensions the Audi TT offroad concept resembles today's compact SUV, the Audi Q3*. At 1.53 meters (5.0 ft) tall, however, it is 8 centimeters (3.2 in) shorter, making its sporty character obvious at first glance. The Sonora Yellow outer skin appears to have been modeled from a solid block; the interplay of the clearly drawn lines and the muscularly taut surfaces produces a highly dramatic design. It uses the design language of the Audi TT*, but places its elements in a new context.

Horizontal lines dominate at the front of the new Audi TT offroad concept. The broad Singleframe grille bearing the four rings is sculpturally embedded in the body. Two subtle indents in the lower region make the grille appear lighter. Narrow louvers in the grille insert form a structure typical of the Audi e-tron models.

The large air inlets below the Matrix LED headlights are framed in sharp edges and structured with louvers. A third, flat inlet below the grille joins them together. Inside is a blade that increases downforce on the front axle and makes the front of the Audi TT offroad concept appear even wider.

Audi TT offroad concept
Audi TT offroad concept

Interior

The interior of the Audi TT offroad concept offers space for four. The rear seat can accommodate two adults comfortably. The slim sport seats with integrated head restraints ensure lateral hold. The side bolsters of the front seats are very strongly contoured.

The design ideas of the new TT* were also the inspiration for the sporty interior of the show car. The top of the instrument panel is designed as a wing. This is supported by a visible aluminum structure that as a horizontal design element incorporates the air vents and underscores the width of the interior. The round air vents are reminiscent of jet engines and incorporate the air conditioning controls. The slender instrument panel is focused on the driver.

Fuel consumption of the models named above:

Audi Q3: Combined fuel consumption in l/100 km (US mpg): 8,8 – 5,2 (26.7 – 45.2); Combined CO2-emissions in g/km (g/mile): 206 – 137 (331.5 – 220.5)

Audi A6: Combined fuel consumption in l/100 km (US mpg): 9,8 – 4,4 (24.0 – 53.5); Combined CO2-emissions in g/km (g/mile): 229 – 114 (368.5 – 183.5)

Audi A8: Combined fuel consumption in l/100 km (US mpg): 11,3 – 5,9 (20.8 – 39.9); Combined CO2-emissions in g/km (g/mile): 264 – 144 (424.9 – 231.8)
Audi TT: This car is not yet on sale. It has not yet been homologated and is therefore not subject to the 1999/94/EG guideline. Provisional data:
Combined fuel consumption in l/100 km (US mpg): 7,1 – 4,2 (33.1 – 56.0);
Combined CO2-emissions in g/km (g/mile): 164 – 110 (263.9 – 177.0)

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