[EVDL] wireless charging

Rod Hower <[email protected]> wrote:

> I thought this may be of interest,
>
> http://electronicdesign.com/article/power/Collaborators-Seek-Air-Power-For-Electric-Cars.aspx?nl=1
>
> Charging up an electrical vehicle is no feat of techno wizardry. Plug it
> in,
> wait a bit, and off you go, a no brainer at best. But how about charging up
> like
> some mobile device users do: wirelessly. That would certainly make things
> easier
> for the user..............................
>


A few years ago I had half a dozen different chargers for various cell
phones, gadgets. They all went to a mini or micro USB connector for charging
and data.
I think this is a solution for the EV as well. Charging at 1 watt would only
take about 6 months.

--
Martin K.
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Lee Hart wrote:

> On 10/6/2010 1:35 PM, Roger Heuckeroth wrote:
>> But what is the efficiency of this kind of inductive charger with a
>> 6-8" air gap?
>
> Existing examples of this kind of charger minimize the air gap between
> "primary" and "secondary" (the GM Magnecharger, Inductran forklift
> chargers, Braun electric toothbrush charger...) This is the best way
> to
> minimize radiated noise and maximize efficiency.
>
> But, it is possible to operate with a modest gap and still maintain
> reasonably high efficiency. You can use higher frequencies, or larger
> diameter coils (so the space between them is a smaller in proportion),
> or put magnetic materials around the two coils to force more of the
> magnetic flux to link them rather than "escape".

So, you do think its a good idea? I know ifs possible.

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Sean Korb wrote:

> This all seems so... familiar.
>
> Oh, I remember. That's how they charged the EV1.
>
>> From http://en.wikipedia.org/wiki/Inductive_charging
>
> "Hughes Electronics developed the Magne Charge interface for General
> Motors. The General Motors EV1 electric car was charged by inserting
> an inductive charging paddle into a receptacle on the vehicle. General
> Motors and Toyota agreed on this interface and it was also used in the
> Chevrolet S-10 EV and Toyota RAV4 EV vehicles."
>
> Of course the inductive coil was inserted into a slot for best
> efficiency. The efficiency drops off at the square of the distance,
> so even 15cm is a bit far. If you had a target and a robotic arm...
> well that seems even more complicated than sticking the coil in the
> slot in the first place.
>
> sean
>
>
> On Wed, Oct 6, 2010 at 1:19 PM, Rod Hower <[email protected]>
> wrote:
>> I thought this may be of interest,
>> http://electronicdesign.com/article/power/Collaborators-Seek-Air-Power-For-Electric-Cars.aspx?nl=1
>>
>> Charging up an electrical vehicle is no feat of techno wizardry.
>> Plug it in,
>> wait a bit, and off you go, a no brainer at best. But how about
>> charging up like
>> some mobile device users do: wirelessly. That would certainly make
>> things easier
>> for the user..............................
>
>
> --
> Sean Korb [email protected] http://www.spkorb.org
> '65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera
> #1382
> "The more you drive, the less intelligent you get" --Miller
> "Computers are useless. They can only give you answers." -P. Picasso
>
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Roger Heuckeroth
Advanced Carbon Systems
304 Blue Mountain Road
Saugerties, NY 12477
www.advancedcarbonsystems.com
Phone: 845-247-9089
Toll Free: 866-834-5674
Fax: 845-247-0441
[email protected]



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Jack Murray <[email protected]>wrote:

> I think having to plug in a cord to charge is a huge PITA.
>
> But I'm one who hates to clean my swimming pool, vacuum the carpet,
> put the dishes away, or make my bed everyday.
>
> I hate going to the gas station too, a toxic waste dump experience,
> but it's only once a week, not everyday (with current batteries)
>
> My idea was not to put it on the ground, but have it integrated
> into the front bumper, and you drive UP to it, not OVER it.
> Makes sense for a parking spot, not many pull-through garages or parking
> lots I've seen..
> This would allow them to be very close together.
>
> And if anyone remembers my EV Train approach, this bumper(s) would
> also allow EVs to chain together magnetically and be charged as they travel
> the freeway in a train pulled by an EV locomotive.
> Google didn't fund that idea..
>
> Jack Murray
>
> --- On Wed, 10/6/10, Bill Dube <[email protected]> wrote:
>
> > From: Bill Dube <[email protected]>
> > Subject: Re: [EVDL] Wireless charging
> > To: "Electric Vehicle Discussion List" <[email protected]>
> > Date: Wednesday, October 6, 2010, 12:34 PM
> > Hard to compete with a $15 conductive
> > connector. All these nifty
> > alternative methods of charging typically cost more than
> > the actual
> > electricity the car will use in its entire lifespan.
> >
> > In the colder regions of the world, they routinely use
> > conductive
> > plugs to run block heaters. About the same amount of
> > wattage as an EV
> > needs. Works without any problems. Why invent something
> > more
> > expensive when you have something that is proven to work,
> > even in the snow.
> >
> > Bill D.
> >
> > At 01:11 PM 10/6/2010, you wrote:
> > >I didn't find what the percentage is, but the
> > "breakthrough" is
> > >to have resonant fields so its efficient. 50%
> > loss might be OK for
> > >a cell phone, but when talking about the power level to
> > a car, the
> > >wasted power would be enourmous, particularly on a big
> > scale
> > >(although might say same with cell phones if used in
> > large scale).
> > >
> > >I like the idea, Tesla was right! Again!
> > >
> > >I think a laser beam might be more efficient and
> > wireless.
> > >
> > >Jack Murray
> > >
> > >--- On Wed, 10/6/10, Roger Heuckeroth <[email protected]>
> > wrote:
> > >
> > > > From: Roger Heuckeroth <[email protected]>
> > > > Subject: Re: [EVDL] Wireless charging
> > > > To: "Electric Vehicle Discussion List" <[email protected]>
> > > > Date: Wednesday, October 6, 2010, 11:35 AM
> > > > But what is the efficiency of this
> > > > kind of inductive charger with a
> > > > 6-8" air gap?
> > > >
> > > > On Oct 6, 2010, at 1:19 PM, Rod Hower wrote:
> > > >
> > > > > I thought this may be of interest,
> > > > >
> > >
> http://electronicdesign.com/article/power/Collaborators-Seek-Air-Power-For-Electric-Cars.aspx?nl=1
> > > > >
> > > > > Charging up an electrical vehicle is no feat
> > of techno
> > > > wizardry.
> > > > > Plug it in,
> > > > > wait a bit, and off you go, a no brainer at
> > best. But
> > > > how about
> > > > > charging up like
> > > > > some mobile device users do: wirelessly.
> > That would
> > > > certainly make
> > > > > things easier
> > > > > for the user..............................
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > _______________________________________________
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> > > >
> > >
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>
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Eric wrote:
> Technically this would work IN the nations highways. Imagine this
> inductive charging system powered by the Sun built into the roads and
> highways of the world. An endless highway system where you never have to
> stop for charging. Expensive? Yeah, but heck it's only money...
>
> Regards,
> Eric
>
>
>
> On 10/6/2010 10:19 AM, Rod Hower wrote:
>> I thought this may be of interest,
>> http://electronicdesign.com/article/power/Collaborators-Seek-Air-Power-For-Electric-Cars.aspx?nl=1
>>
>> Charging up an electrical vehicle is no feat of techno wizardry. Plug it in,
>> wait a bit, and off you go, a no brainer at best. But how about charging up like
>> some mobile device users do: wirelessly. That would certainly make things easier
>> for the user..............................
>>
>> _______________________________________________
>> | REPLYING: address your message to [email protected] only.
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>>
>>
>
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Lee Hart wrote:

> On 10/6/2010 6:00 PM, Eric wrote:
>> Technically this would work IN the nations highways. Imagine this
>> inductive charging system powered by the Sun built into the roads and
>> highways of the world. An endless highway system where you never
>> have to
>> stop for charging. Expensive? Yeah, but heck it's only money...
>
> Putting them in the roads seems unnecessarily difficult and expensive.
> Wouldn't it make more sense to put them beside the road, or overhead?


If your considering making that level of investment... might as well
think beyond the "car" as a means of transportation.

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Rush <[email protected]> wrote:

> Lee wrote
> > Not if you can write the standards to require a $150 conductive
> > connector!
>
> Like the J1772 stuff...
>
> Rush Dougherty
> www.TEVA2.com
> www.TucsonEV.com has the J1772 Adapter Box
>
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--
Regards,
*Dennis Lee Miles* (Director) *E.V.T.I. inc*.
*www.E-V-T-I-Inc.COM <http://www.e-v-t-i-inc.com/> *(Adviser)*
EVTI-EVAEducation Chapter
*
Phone (863) 944 - 9913
Initial demand (computed by extrapolating the reservations for GM Volt and
Nissan Leaf,) shall exceed 200,000 vehicles in 2010 and 2011. However only
50,000 vehicles will be marketed, so a LARGE demand for Nice Newer
Conversions is predicted!
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Roger Heuckeroth <[email protected]>wrote:

> But what is the efficiency of this kind of inductive charger with a
> 6-8" air gap?
>
> On Oct 6, 2010, at 1:19 PM, Rod Hower wrote:
>
> > I thought this may be of interest,
> >
> http://electronicdesign.com/article/power/Collaborators-Seek-Air-Power-For-Electric-Cars.aspx?nl=1
> >
> > Charging up an electrical vehicle is no feat of techno wizardry.
> > Plug it in,
> > wait a bit, and off you go, a no brainer at best. But how about
> > charging up like
> > some mobile device users do: wirelessly. That would certainly make
> > things easier
> > for the user..............................
>
>
>
>
>
> _______________________________________________
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>



--
Remember, it is not that the glass is half empty, in reality, the glass is
merely twice the size that it needs to be! -TNT'82
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