23 Aug '11, 12am

Japanese researchers can deliver power to your wheels by radio

Japanese researchers can deliver power to your wheels by radio

For electric items that are too mobile to be connected by wire, like – to pull a completely random example out of the air – a car traveling down the highway, the idea of wireless power transmission has a lot of appeal. Several different schemes have been considered, including magnetic induction, microwaves, or even lasers. Now, researchers in Japan are examining a system that would use a radio frequency signal to transmit power. The system, proposed by Masahiro Hanazawa at Toyota Central R&D Labs and Takashi Ohira at Toyohashi University of Technology, would involve tracks embedded in the roadway to generate a strong radio frequency (RF) signal as the EV passes above. The vehicle receives the signal through the steel belts in the tires and systems onboard the vehicle would convert the RF back to electricity. The RF power system is still in low power testing, but the hope i...

Full article: http://green.autoblog.com/2011/08/22/japanese-researchers...

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