Audi A2 Concept: details, specs and photos released

Article by Christian A., on September 8, 2011

Audi’s futuristic A2 concept has been confirmed to be the third all-electric Audi design study to take the center stage for the Vorsprung durch Technik brand at the 2011 Frankfurt Show. This four-seat A2 concept, a purely electric vehicle, is similarly ahead of its time just like the two other radical-styled urban concept electric studies.

It has a remarkably space-efficient and lightweight packaging which has been achieved with state-of-the-art multi-material hybrid construction. Its futuristic specification includes a semi-autonomous running mode, LED matrix lighting technology, ‘by-wire’ steering and braking and contact-free battery charging.

Advanced Audi ultra-lightweight construction methods limit the weight of this latest innovative study to just 1,150kg. It unites hybrid multi-material construction, marking the first time for very different materials to be combined using the Audi Space Frame (ASF) construction principle.

The superstructure is generally made from aluminum, complemented by add-ons in Carbon Fibre-Reinforced Polymer (CFRP). The concept has 18-inch alloy wheels which shave off about 2kg each versus the traditional variants, thanks to cladding technology which greatly decreases the amount of material used. Mounted in its sandwich floors is a lithium-ion battery that stores 31 kWh of energy, 24 kWh of which is usable.

Transversely fitted in the front is an electric motor that delivers 116PS of peak power (80PS continuous) and 270 Nm of torque (160 Nm continuous) to the front tires through a single-speed transmission. This power output allows a 0-62mph acceleration time of 9.3 seconds with a top speed of 93mph.

The speed is electronically limited to achieve a driving range of 124 miles based on the European driving cycle test. It takes about 1.5 hours to fully recharge the battery with 400 volt three-phase current. With 230 volt household current, charging will take around four hours. The A2 concept is also designed for the new contact-less charging technology dubbed as the Audi Wireless Charging.

"The charging socket and the cooling water connection are concealed at the front of the car behind the upper portion of the single frame grille. The lower section of the grille acts as an air inlet, and incorporates highly efficient cooling elements made of graphite foam. The lightweight mineral is an excellent conductor of heat from the water to the ambient air. Eight blocks with six graphite elements each are located in the central air inlet." said the press release.

Press Release

Audi A2 Concept

With the electric-only powertrain of the A2 concept, Audi is offering another peek into the future of electric mobility at the 64th International Motor Show (IAA) in Frankfurt. The technical study features a classic, premium-standard space concept that offers plenty of room for four people.

The Audi A2 concept is just 3.80 meters (12.47 ft) long, 1.69 meters (5.54 ft) wide and 1.49 meters (4.89 ft) high; even so, it makes an elegant, powerful and sporty impression on the street. Its clean appearance concentrates on the essentials; all details are subtle but shaped for visual impact. The dark glass roof of the white-painted show car switches to transparency with the push of a button.

With its headlights, Audi is presenting the next phase in LED technology, known as matrix beam. A package of LEDs and microreflectors generate a high-resolution and non-glaring high-beam light. Delicate daytime running light fibers frame the highly efficient LED low-beam light module. Intelligent tail lights adapt their illumination to the visibility conditions. The rear fog light, produced by laser diodes, is seen as a beam of light in fog and projects a red triangle onto the road as a warning.

The dynamic light runs below the edge of the window from the front to the rear of the Audi A2 concept - a band of light that contains a multitude of innovative, dynamic light functions. Integrated approach sensors detect the owner and unlock the doors via gesture control. While driving, the dynamic light functions as a continuous side marker light. If the car's indicator is activated, light impulses run throughout the entire band of light.

In addition, a red bar of light flows forward from the tail lights when braking and demonstrates the strength of the brakes intuitively for other road users.

The dynamic light is also located in the cockpit area of the show car, structured in two separate arches. Like the entire interior, the dash panel has a light and clean look and intuitive controls. The driver manages many important features via touch-control areas on the inside of the steering wheel. All driving function use by-wire technology. Components such as the steering or brakes, for example, are actuated purely electrically. Two additional control surfaces fold up at the driver's right when starting the vehicle. An open profile serves as the steering column; a seven-inch display and two secondary displays are located at its end.

The Audi A2 concept has a flat interior floorboard. The center console is attached to the driver's seat; the rear console extends forward between the two rear seats. The four individual seats add lightness, and there is storage space under the fold-up seat cushions. There is room between the rear seats for a city bicycle with its front wheel removed. The load area has two levels; a frame with functional nets creates the upper level.

The colors and materials in the interior support the impression of lightness and functionality. The large areas from the door top shoulders to the floor bear a new and innovative covering material made of polyurethane with a neoprene surface feel; a ribbed material made from recycled polyester covers the central floor area. The seat shells are made with a plastic blow molding technique. Aluminum elements create highlights the cockpit.

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