(VIDEO) An electric Audi R8 can hide another (F12 - e performance)

20/09/2012

Yesterday we discovered a technology demonstrator, the A1 Dual Mode Hybrid, but the Audi Future Lab also revealed another version of the R8 e-tron called e-performance.


The Audi R8 e-tron revealed two years ago holds the record of the Nurburgring for an electric car with 8:09.099 but it now as a twin, the e-performance, also known as the F12.

For the record and the comparison, the Audi R8 e-tron weights 1780kg for 381hp and 820nm at the rear wheels only, a car that accelerates from 0 to 100kph in 4.6secondes and whose maximum speed is limited to 200kph , the 48.6kWh battery provides a 215km range.

The F12 e-performance is a bit slower but lighter with 1650kg, 0 to100kph goes under seven seconds, max speed is limited to 180kph with a range of 200km.

In short, the R8 e-tron is the supercar and the e-performance is the electric sports-car.

But the architecture of the car it the most interesting part...


First it receives two battery packs for a total of 38.9kWh, one in a longitudinal position and the other in transversal position on the rear axle.
Audi_R8_e-performance (1).jpg 
Then it has three independent electric motors, one in each rear wheel developing 50kW and 200Nm each with a distribution via a torque vectoring technology, while at the front sits a "simple" motor of 50kW and 150nm making it an electric quattro (e-tron quattro) ... At low speeds only the single engine (synchronous) works, while when some power is needed the two rear motors (asynchronous) come into play.
Audi_R8_e-performance.jpg 
Real laboratory vehicle, the Audi F12 is a drivetrain study, a matrix suitable for a sedan or a city-car / electric or plug-in hybrid (quoting Audi’s press release...) with a battery in the central tunnel or on the rear axle, an electric motor at the front or two at the rear... That leaves some options!

Par Technologic Vehicles
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