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Audi e-tron Enters Silvretta E-Auto Rally Montafon 2010

Audi has entered an e-tron technology platform wrapped in the skin of an R8 in the Silvretta E-Auto Rally Montafon 2010.

The competition is designed to pit the latest and greatest of the electric vehicle world against each other over 10 special stages that cover a total of 104.08 miles (167.5).

Michael Dick, Member of the Board of Management of AUDI AG for Technical Development, and factory driver Lukas Luhr will pilot the electric sports car along the route through the Austrian state of Vorarlberg.

Four motors – two each on the front and rear axles – power the wheels of the Audi R8 e-tron, making this test vehicle a true quattro. With 230 kW (313 hp) and 4,500 Nm (3,319.03 lb-ft) of torque, the two-seater accelerates from 0 to 100 km/h (62.14 mph) in 4.8 seconds. The technology platform is designed for a top speed of 200 kilometer per hour (124.27 mph).

One glance is all it will take for the fans at the Silvretta E-Auto Rally Montafon 2010 to recognize the caliber of the car: Based on the R8, this Audi e-tron has a wide, powerful road stance. The trapeze of the single-frame grille dominates the front end and is flanked by two large air intakes. 1.90 meters (6.23 ft) wide, just 4.43 meters (14.53 ft) long and 1.25 meters (4.10 ft) tall – those are the proportions of a supercar. The wheelbase of 2.65 meters (8.69 ft) leaves plenty of room between the axles for people and technology. The sporty proportions offer enough room in front of the rear axle for the battery unit and the power electronics.

The special package of the Audi e-tron technology platform provides for a 42:58 distribution of weight between the front axle and the rear axle, and thus for optimal balance and driving dynamics.

Because systematic lightweight construction is also a crucial prerequisite for the efficiency and range of electric cars, the Audi designers tapped into one of the company’s core competences for the R8 e-tron technology platform: The body structure is based on Audi Aluminum Space Frame (ASF) technology.

Power supply
The energy storage unit is charged with household current (230 volts/16 amperes) via a cable and a plug. What used to be fuel cap covers the socket. With the battery fully discharged, charging time is between six and eight hours. High-voltage (400 volts, 63 amperes) reduces this to around 2.5 hours.

The battery isn’t only charged when the car is stationary, but also while driving. The keyword here is recuperation. This form of energy recovery is already available today in a number of Audi production models. During braking, the alternator converts the kinetic energy into electrical energy and feeds it into the onboard electrical system. This relieves the load on the alternator during the next acceleration phase, which enhances driving dynamics and improves efficiency.

Jul 9, 2010Blagojce Krivevski
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Blagojce Krivevski

Blagojce Krivevski is physicist and green technology lover. Keep in touch with Blagojce through his email, web site, Twitter, Linkedin, Facebook and Google+.

July 9, 2010 Electric Car Newsaudi, Audi E-Tron, Audi e-tron Concept, e-tron, E-Tron Rally, Silvretta E-Auto Rally
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