[PStechPaul]

There has been occasional discussion about wireless charging and there were some links in the thread (now removed) about being able to run an EV continuously without having to [stop to] recharge the batteries. At this point I don't think there is any practical means to do this, but it may become a reality someday. So here are some links that I found interesting:

http://web.mit.edu/newsoffice/2010/wireless-power-0409.html

http://www.teslamotors.com/forum/forums/wireless-charging

http://www.ti.com/lit/sg/slyt485/slyt485.pdf

http://www.ti.com/lit/an/slyt479/slyt479.pdf

http://www.mit.edu/~soljacic/wireless_power.html

http://gizmodo.com/5924169/wireless...ean-electric-cars-that-charge-while-you-drive (for EVs)

http://www.wirelesspowerconsortium....uency-non-radiative-power-transfer-8_8_11.pdf

Apparently the efficiency of such power transfer in the lab has been about 20-30%, but theoretically could approach 100%. I think microwave transmission has been proven to about 80-90%. There is much concern about safety and interference with RF communications, and that needs to be carefully researched.

 

[dragonsgate]

I read a SiFi book many years ago about a futuristic Private Eye. He was in his electric car and the batteries were getting low so he activated an antenna and charged from a satellite power station while one the go. I was about nineteen and in the service at the time and an electric car was a real novel idea. I can’t remember much else about the story except that part and it often comes to mind when the batteries get low and I have to head for home in my EV. Of course you know if there ever is a way to charge through the ether there will be a lot of controversy.

 

[Ziggythewiz]

You could do on demand charging like that today via microwave. All you need is line-of-sight. I think most efforts re charging are wasted though, my onboard charger sits on the floor in the garage now. Most EVers are going to charge at home 99% of the time anyway.

 

[dragonsgate]

It would be like WiFi or finding a tower for your cell phone. I only charge at home but if I could be sure that it would not melt the candy bar in my pocket I would tap in to get a few extra miles before heading back to the Ranch.

 

[Stacydumas]

Charging an EV or multiple EV's from a wifi of other hands free device is not likely cover up the EV's soon.. But there will be additions to charge EV's with different or multiple solutions.

 

[iti_uk]

Some more on this;

http://www.metro.co.uk/tech/914430-...ng-make-an-electrified-m25-a-real-possibility

 

[Duncan]

You guys are on the wrong side of the world

http://www.diyelectriccar.com/forum...oad-technology-free-lecture-series-79394.html

Very impressive lecture
The Jafa's (Aucklanders) have got stationary charging sorted and have a few small engineering problems
(how to stop 40 tonners munching the in road coils)
to fix to get on road moving charging going - 95+% efficiency