backtop


Print 91 comment(s) - last by ddh.. on Jul 19 at 3:56 PM

Researchers show off EV charging through the tires

Several notable issues are preventing electric vehicles from entering the mainstream consumer market today. Perhaps the biggest issue that is keeping the average consumer from buying an electric vehicle is range anxiety. Another major issue for many car shoppers that might otherwise consider an EV is a much higher cost of entry compared to a traditional automobile.

Another more pressing concern is one of recharging an EV and finding a power receptacle when away from home. A team of researchers from the Toyohashi University of Technology has unveiled a very novel and much more interesting way to recharge an electric vehicle wirelessly. The team from the University is led by Takashi Ohira and has recently been showing off a wireless electric field coupling system that can charge an EVs batteries through the tires. The big benefits of this system are four points of charging, rather than one point that we typically see in other wireless charging systems. That opens the door to the possibility of transferring more power to the vehicle at one time resulting in faster recharging.

The researchers have been showing a demo where a metal charge plate is placed under a four-inch layer of concrete to represent road surface. The team was able to transmit between 50 and 60 W of power through actual automobile tires and make a light bulb attached between the two tires turn on. The University researchers call the project EVER (Electric Vehicle on Electrified Roadway).

Another interesting possibility with wireless charging through the tires is that the team has been able to demonstrate the ability to transmit that power through a concrete block and into the tires of the vehicle to charge the batteries. That means with the right infrastructure an electric vehicle could be charged as it drives down the road.

There is no indication of when or if this project might be commercialized.

The U.S. Energy Department recognizes that charging is a challenge facing EVs and in April of 2012 offered up to $4 million to companies willing to develop wireless chargers for EVs. So far, most of the wireless chargers we've seen consist of some sort of charger on the surface of the driveway or road and a receiver mounted to the underside of the vehicle.

Source: Phys.org



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: Don't really get it.
By JediJeb on 7/11/2012 2:18:21 PM , Rating: 3
quote:
And they are probably spending $20 a month on other useless stuff.


But if you shift that 20$ per month on other "usless stuff" into paying for wasted energy, then you shift that money from other segments of the economy into the energy portion of the economy, which may or may not return it to the rest of the economy. Why should we have different portions of the economy take a hit just to shift it to the energy portion?

I am not against novel ideas like this, but we must make then as efficient as possible and take all the possible waste into account before jumping on board. The other question to ask is what do the EM fields from this do to everything else?


RE: Don't really get it.
By Motoman on 7/11/2012 2:27:05 PM , Rating: 2
quote:
The other question to ask is what do the EM fields from this do to everything else?


Nothing. Unless you're wearing a tinfoil hat, in which case the NSA can hear your thoughts.


"If you look at the last five years, if you look at what major innovations have occurred in computing technology, every single one of them came from AMD. Not a single innovation came from Intel." -- AMD CEO Hector Ruiz in 2007














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki