Audi R18 etron quattro Tackling Le Mans with AllWheel Drive Fourtitude com

2 Апр 2014 | Author: | Комментарии к записи Audi R18 etron quattro Tackling Le Mans with AllWheel Drive Fourtitude com отключены
Audi e-tron

posted by George Achorn on 17 May in Audi News

• Latest generation of the successful all-wheel

• Audi sets benchmarks in of assembly space, weight and

[source: Audi Sport]

In a from now a prestigious success be at stake for Audi. On June a hybrid vehicle could be the Le Mans 24 Hours for the first

Electrified drive and quattro drive – what looks two different worlds at first has been merged into a synthesis by Audi. “Soon the TDI phase had begun we started to about the hybridization of a Le Mans prototype, when it was foreseeable the regulations would open up option,” explains Head of Motorsport Dr. Wolfgang Ullrich. exploring the concepts we quickly saw the of bringing a new technological specification of drive back into Unfortunately, it had been banned circuit racing since


From 1981 to 1997, won four titles in the World Championship, clinched three at Pikes Peak, a championship win in the two DTM titles and eleven national Touring Car Championships plus a Car World Cup with quattro For the first time since the ban an all-wheel drive model is now to compete in the FIA’s circuit program.

Yet what sounds a simply return has been one of the tasks ever tackled by Sport to date. Packaging an front-wheel drive and a hybrid into a sports car is particularly due to the space conditions. With a of two meters and a length of 4.65 the car has large outer dimensions.

  But the outer shell there is a construction which in motorsport has quite classically optimized for different aspects than the of a drive axle and incorporation of a system.

Consequently, the achievements of the engineering that has made the hybrid drive reality are particularly for example, because the entire unit is installed inside the fiber structure for optimal Or because the monocoque has been in forward length compared the predecessor model. This the crash structure in front of it still has to successfully pass all tests, though. Or because of the proximity to the driver, which special protection measures.

Or of the weight, as every gram in motorsports. Or because of the performance Never before has such a and light-weight system recovered so energy.

With support system partners, Audi has a particularly compact MGU (motor unit) on the front axle. energy recuperation, which is electronically controlled, drive transmit the power to the inside of the MGU the kinetic energy is converted electric power during periods. The principle is similar to of the commonly known dyno – with extremely high flows.

Audi e-tron

Converters integrated into the transform this energy alternating into direct which in turn drives a mass storage device alongside the driver. The energy is by the current accelerating this fiber flywheel which in a high-vacuum to as much as 45,000 per minute. After cornering, energy is available again to the electric motors of the MGU unit in turn drive the front

Up to 150 kW of short-term power (204 HP) can be to the front axle.

“The that in Audi’s Technical division ideas of driving the combustion engine and an axle via the motor have been in gave us strong motivation to the concept for the R18 e-tron quattro in direction,” says Dr. Ullrich. convinced that by splitting the drive and the combustion drive two axles we’re achieving a weight distribution in the vehicle making use of at least some of the of a quattro drive system. presenting our concept to the ACO and the FIA for the first we received a relatively quick

They saw that in the case of our solution in combination with drive the quattro factor carries some weight. The FIA to keep this within the of a reduced scope because its aim is hybridization, not the return of all-wheel Therefore, a clause in the regulations was that limits the advantage of a quattro drive when out of tight corners. The electrified may only be additionally used for above a speed of 120 km/h”

At the time, the number of braking is specified by the FIA for each track. The 58-liter fuel tank of the hybrid vehicle is two liters than that of the conventional Last but not least, the amount of that may be recuperated between two zones is limited to 500 kJ. “The FIA these intervention options for in order to create a balance the hybrid vehicles and the conventional The effects vary from to track and are difficult for us to judge at point in time,” says Dr.

Ullrich.

Dr. Ullrich’s conviction this has been the right outweighs these imponderables, There is even a bit of nostalgia “I’m really happy we managed to bring quattro into motorsport. It was the system I my first hours in the Super Car project at Audi Sport explains the head of motorsport. proved back then all-wheel drive offers an on any track in any weather even low engine output, just our customers can experience it on the road day as well. It’s nice we’re bringing a form of back into motorsport though, to put it in jest, we’re allowed to compete with quattro at the moment.”

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