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Audi e-tron
Concept has four electric motors and a single battery pack

The world of electric and hybrid vehicles is progressing and growing at a rapid pace. While most people still think of hybrids and electric vehicles as low performance machines, there are an increasing number of high-performance electric vehicles being unveiled.

The first high performance EV was the Tesla Roadster with good performance thanks to the impressive torque of the electric motor. Audio has unveiled its latest concept car at the International Motor Show in Frankfurt called the Audi e-tron which just so happens to look like an electrified Audi R8.

The most impressive feature of the concept isn’t just its all-electric power train, but its tremendous amount of torque. Audi claims that the e-tron has a torque rating of  3,319.03 lb-ft. All that torque is generated by four individual electric motors situated at each wheel allowing the vehicle to be all-wheel drive.

The car has a total of 313 HP and promises to hit 60 mph in about 4.8 seconds. A more impressive number is that the car can go from about 37 mph to 74 mph in only 4.1 seconds. The all-electric range for the lithium-ion battery pack is 154 miles.

The EV is a large beast at 3,527 pounds and it measures in at 74.5-inches wide x 167.72-inches long and 48.43-inches tall with a wheelbase of 102.36-inches. The massive single battery pack alone weighs 1,036 pounds.

"We are trying to find a concept that requires no compromises," says Michael Dick, Member of the Board of Management of AUDI AG, Technical Development. "Electromobility means more to us than just electrifying conventional cars. Instead, we are dedicated to a holistic approach to all aspects of the topic."

Audi's American President called potential Volt buyers idiots not long ago and then quickly claimed he forgot what he said. There was only speculation surrounding the Audio EV concept at the time the comments were made.

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RE: <Drool>
By Chemical Chris on 9/15/2009 1:31:18 PM , Rating: 5
37 mph to 74 mph in only 4.1 seconds

That is what torque gives you, 'passing power'. Instantaneous power at any rpm.
Also, with so much torque, less mechanical torque multiplication must be used, allowing the motor/gears to be smaller and simpler, important with a motor and gear pack at each wheel.
oversimplified idea: If you had 300lb-ft and and 300hp, you would need gears to get the power to the road. with 3000lb-ft and 300hp, no gears would be necessary. Remember horsepower = (torque * rpm) /5252. So, if two engines have 300hp, but one has 10x the torque, it will have 10x the power per rpm/would have fewer rpm's to go through to get to peak power. The current R8 has a first gear ratio of 4.37, sixth is 0.93, final drive is 3.71. Torque is 317lb-ft from 4.5-6Krpm. Therefore, the wheels see 5139lb-ft in first, 1093lb-ft in sixth.
Im starting to rant, so Ill end now...


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