Electric Roads May Be In Our Future eMercedesBenz

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Interesting » Electric Cars

by John Clark | 04 May 2011


We ask a lot of our – heat me, cool me, be silent, be be exciting and, increasingly, me without costly and polluting It s the latter request that since batteries, the most replacements for gas, are heavy and limited energy storage.

But if the energy storage burden was from our overworked cars to the

Researchers at the Energy Dynamics at Utah State University are on just such a solution, electrified roads.

Electric vehicles, or EVs, pick up small amounts of as they drive over pads buried under the and connected to the electrical grid. say that a continuously available supply would allow EVs to cut size as much as 80 percent, reducing vehicle cost.

you get power directly from the to the motors as the car moves, said Wu, a Utah State researcher who was from The University of Auckland in New where the technology was pioneered, to develop the concept. You can travel the West Coast to the East continuously without charging.

Nicola Tesla first the principles of wireless charging, or power transfer, in the late Century. It works by creating an charging field that energy to a receiving pad set to the same

Manufacturers are already marketing charging pads for electric – retrofitted to accept the charges – can deliver a 5-kilowatt charge 90 percent efficiency from a of about 10 inches.

There is also a trial of electric roads – albeit at speeds and using very charging pads – for buses at the Advanced Institute of Science and south of Seoul.

But Wu is thinking of much more radical: at interstate speeds. This require several technical he said.

At 75 mph, you re only to stay on a pad for about 30 milliseconds, he We need to turn the pad embedded in the on and off really quickly.

Interesting » Electric Cars

The pads would need to be to signal to each other a car is coming and the car would also to communicate its need for a charge, he

Wu said the pad must also power even when the car isn t over top of it – a capability called misalignment that the current of stationary inductive power chargers don t have.

John a University of Auckland professor who is with refining the technology, it would be possible to transfer up to 30 kW of at an average efficiency of 80 percent on the Assuming that chargers be available at home and work, said, a car would only a battery big enough to make it to the interstate or major road.

Wu said the cost of electrified pegged at $1.5 million to 2.5 per lane mile, could be up through charging a toll the roadway.

Not only would the of EVs, but range anxiety be totally eliminated, he said.

technology, Wu said, would EVs forward.

Interesting » Electric Cars
Interesting » Electric Cars
Interesting » Electric Cars

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