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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 Spuke on 9/15/2009 1:30:42 PM , Rating: 2
quote:
They still do but aren't exactly relative to internal combustion engines.
RPM is RPM. Electric motors don't have some special RPM. Electric motors spin, combustion engines spin.


RE: <Drool>
By JediJeb on 9/15/2009 2:54:16 PM , Rating: 3
quote:
RPM is RPM. Electric motors don't have some special RPM. Electric motors spin, combustion engines spin.


True, but there is gear reduction with regular drivetrains, but if the electric motor were coupled directly to the wheel with no gear reduction then they would spin over 3x slower than the IC engine would to produce the same speed. So if you are turning 1800rpm with an IC engine in your car now and you have enough torque to do a direct drive set up with the electric motor then it only needs to turn at 600rpm to make the same speed, and many cars only turn 1800-2200rpm at 60mph.

Another thing to consider is this is using 4 motors, if the torque is total then divide by 4 and you get the torque at each wheel. With all wheel drive it takes more torque to break traction since you have less to push against than when you have two wheels just sitting there holding you back somewhat.


RE: <Drool>
By Spuke on 9/15/2009 3:24:32 PM , Rating: 2
quote:
Another thing to consider is this is using 4 motors, if the torque is total then divide by 4 and you get the torque at each wheel.
Ah, you are right. Didn't think of it that way.


"There is a single light of science, and to brighten it anywhere is to brighten it everywhere." -- Isaac Asimov














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