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JAK620

7/25/2012 2:20 PM EDT

Hmm... wireless charging sounds pretty cool. But that is a lot more energy in ...

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iniewski

7/25/2012 9:46 AM EDT

I think wireless charging for phones will take off...convenience trumps energy ...

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Qualcomm, Renault team on wireless electric vehicle charging

Peter Clarke

7/24/2012 10:24 AM EDT


LONDON – Qualcomm Inc. (San Diego, Calif.) has announced it has agreed to apply its wireless electric vehicle charging (WEVC) technology to Renault vehicles as part of an upcoming trial.

Qualcomm calls its WEVC technology Halo and it is set to be used in a London trial. Renault SAS has joined the trial steering committee. The objectives of the trial are to evaluate the commercial viability of wireless EV charging and gain user feedback on the use of WEVC-enabled vehicles.

In addition, Delta Motorsport Ltd. (Towcester, England), an automotive and motorsport engineering consultancy, has agreed to integrate Halo into its Delta E-4 electric vehicles, for deployment in the London WEVC trial in the second half of 2012. Addison Lee, the UK's largest minicab company, and Chargemaster plc, the leading European operator of electric vehicle charging infrastructure, have also agreed to participate in the WEVC London trial.

The technology is based on inductive charging across the air gap between a transmitting pad in the road surface and a receiving pad on the underside of a vehicle. It typically works at frequencies below 300-kHz but the final details are not yet decided and subject to standards negotiation. It is not yet clear whether the technology uses simple inductive magnetic coupling or resonant inductive coupling. The technology is also said to be suitable for in-motion charging in circumstances where electric-roadways are set up.

For parked charging the ground pad remains switched off until a vehicle with a compatible pad is in proximity. The two pads include wireless communications which carry authentication, charging requirements and payment negotiations prior to charging beginning.

Qualcomm acquired the technology along with assets of HaloIPT Ltd. (London, England) in November 2011. HaloIPT's technology was based on 20 years of research into wireless power at the University of Auckland in New Zealand.

The objectives of the trial are to evaluate the commercial viability of the wireless charging of electric vehicles (EVs), to develop a further understanding of issues relating to the integration of WEVC technology into EVs, to build knowledge associated with the deployment of WEVC into a megacity, and to gain user feedback on the use of WEVC-enabled electric vehicles.

"The deployment of wireless inductive charging requires inter-operability between cars and ground systems within common European and, hopefully, worldwide standards," said Jacques Hebrard, vice president at Renault, in a statement from Qualcomm.


Related links and articles:

www.qualcommhalo.com

www.wevc.com

News articles:


Tesla's CEO: Half of cars will be electric in 15 years

Qualcomm, Samsung form wireless power alliance

Leyden Energy partners for wireless charging

Wireless charging market is on 85 percent CAGR





iniewski

7/24/2012 11:30 AM EDT

Interesting idea of wireless charging...how efficient that charging is though? how long would it take to charge a battery?...and if you sit in car do you get to be charged too? ;-)...Kris

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peter.clarke

7/24/2012 2:27 PM EDT

Qualcomm does not provide much engineering detail but seems to indicate that wireless charging can be much the same as conductive charging but with the benefit of not having to connect up the car.

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iniewski

7/24/2012 4:00 PM EDT

No, it has to be less efficient...wireless radiates in many directions (even if you use resonance like in this case), you have to be a right place with teh reight surrounding for an optimum energy transfer...it is more effcient with wrires for sure, the only question is by how much...Kris

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Mark Goldes

7/24/2012 1:08 PM EDT

See Moving Beyond Oil on the Aesop Institute website for a 5 minute electric car charging system under development at Hydro Quebec.

Combine these technologies and we will have a whole new ball game!

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iniewski

7/24/2012 1:43 PM EDT

Thank you Mark for pointing this out, here is the link for others to enjoy:
http://www.aesopinstitute.org/moving-beyond-oil.html

I need to point out the obvious though: the energy used for charging wirelessly those EV cars will have to come from somewhere! so saying "moving beyond oil, fossil and radioactive fuels" is a bit premature to say at least...Kris

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eewiz

7/24/2012 2:42 PM EDT

I dont even have wireless chargin in my phone now. Why dont they first do it for phone and then think about the EV hybrids?

BTW like Kris, I am bit skeptical about the conversion efficiency.

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peter.clarke

7/25/2012 6:04 AM EDT

Qualcomm is also working on wireless charging of mobile phones and other consumer devices

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iniewski

7/25/2012 9:46 AM EDT

I think wireless charging for phones will take off...convenience trumps energy waste in this case (and waste is small here)...Kris

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elctrnx_lyf

7/24/2012 11:51 PM EDT

This could be a thing of future. As long as it doesn't cost much and provides the same charging effieciency I'm in for it.

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iniewski

7/25/2012 12:14 AM EDT

I am sure this technology will find some applications

Joshua Smith gave an excellent plenary on this topic at emerging technologies meeting in Vancouver last week, www.cmoset.com

But I am skeptical in applications of battery charging

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peter.clarke

7/25/2012 6:06 AM EDT

There is an argument that if it is less efficient in energy transmission that conducted charging it would be irresponsible to deploy it.

You would be trading convenience today for global warming tomorrow.

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prabhakar_deosthali

7/25/2012 6:41 AM EDT

Instead of wireless charging using the charging pads, if this technology can be extended to have conductive guide way on the road itself , using which one can directly drive the EV ( no need to charge) then that I could call a pulling factor to go for EVs. The on board batteries will be used only on the road patches where there is no such conductive guide way.

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prabhakar_deosthali

7/25/2012 6:43 AM EDT

and this conductive guide way could be con contact less using the same principle as the scheme above proposes.

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peter.clarke

7/25/2012 7:40 AM EDT

Reminescent of the Scaletrix race car game where toy cars were powered through copper brushes that sat in a metal track.

The plug-together race-track usually had two such tracks and shaped in a figure of 8 with single bridge to make the distance to travel the same for both cars.

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iniewski

7/25/2012 9:40 AM EDT

Conductive tracks on the road? Interesting idea...but wait, we already have electric trains, electric street cars in the city and trolley buses with conductive tracks in the air! Kris

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JAK620

7/25/2012 2:20 PM EDT

Hmm... wireless charging sounds pretty cool. But that is a lot more energy in the air than that of radio, Satellite, or cell phone signals, isn't it?

I am more interested in see the environmental and healthy study results of the impact of the wireless charging signal on human body. Cancers?

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