Feeds

Japanese boffins demo EV on-the-move charging

Except it’s low-powered and inefficient

5 things you didn’t know about cloud backup

Electric vehicles have two problems: to make them “zero emission”, they need to be recharged from “clean” sources; and range remains a challenge. A Japanese proposal would, if it worked, address the second – but probably exacerbate the first.

A team from the Toyohashi University of Technology has demonstrated an electric field coupling system that they say would let cars be recharged on-the-go through their tyres.

This isn’t easy: the electricity has to be coupled across several inches, which amplifies the losses that take place in trying to get electricity transferred across a wireless channel. The Toyohashi demonstration showed that it was feasible to transfer between 50 and 60 watts through a four-inch concrete block, coupling to the tyres’ steel belts and powering a light bulb.

Efficiency is, however, treated optimistically by researchers in this field. Last year, similar research was hailed as a success since only 20 percent of the total energy was lost in the circuit.

Of course, if the vehicle isn't charged from a clean source, then 20 percent loss means you don't only move the emissions to wherever the power station is; each vehicle's emissions are that much worse than if you recharged with a cable.

Toyohashi University of Tech says the power transfer in its EVER (Electric Vehicle on Electrified Roadway) would have to be scaled up 100 times – transferring more like 5 kW than 50 W – to be useful. ®

Boost IT visibility and business value

More from The Register

next story
Boffins attempt to prove the UNIVERSE IS JUST A HOLOGRAM
Is this the real life? Is this just fantasy?
China building SUPERSONIC SUBMARINE that travels in a BUBBLE
Shanghai to San Fran in two hours would be a trick, though
Our LOHAN spaceplane ballocket Kickstarter climbs through £8000
Through 25 per cent but more is needed: Get your UNIQUE rewards!
CRR-CRRRK, beep, beep: Mars space truck backs out of slippery sand trap
Curiosity finds new drilling target after course correction
SpaceX prototype rocket EXPLODES over Texas. 'Tricky' biz, says Elon Musk
No injuries or near injuries. Flight stayed in designated area
Galileo, Galileo! Galileo, Galileo! Galileo fit to go. Magnifico
I'm just a poor boy, nobody loves me. But at least I can find my way with ESA GPS by 2017
Astronomers scramble for obs on new comet
Amateur gets fifth confirmed discovery
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Scale data protection with your virtual environment
To scale at the rate of virtualization growth, data protection solutions need to adopt new capabilities and simplify current features.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?