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Charge-as-You-Drive

09/13/2013 3:45 PM

Being able to charge your EV as you drive is just around the corner.

Check out this link about wireless power transmission up to 30 feet.

http://www.eetimes.com/author.asp?section_id=36&doc_id=1319466&itc=eetimes_node_192&cid=NL_EET_PowerManagementDL_20130913&elq=ff484c7920b54addbcff0d6c57512d3e&elqCampaignId=1173

At a power of 1 watt at 30 feet,transmitters could be embedded in the interstates to charge vehicles as the pass over them.I am sure that further development will improve the range and power.

I visualize a small trench cut down the center or each lane, with embedded transmitters, with periodic branches to the sides for power source.

A debit from your account could be made automatically according to how much energy you required.This would encourage the further development of more efficient EV's and on board charging systems.

The need for large batteries would be eliminated for long trips,and they are already sufficient for local trips.

A lot of infrastructure would be required,but that would be good for a sagging economy,and put people back to work at all skill levels.

Sounds too good to be true,so I figure the Gov'mt or Big Oil will find a way to ruin it.

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#1

Re: Charge-as-you-drive

09/13/2013 3:52 PM
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#4
In reply to #1

Re: Charge-as-you-drive

09/13/2013 5:33 PM

I don't know,but if the need is there,it will be built.Small at first,but eventually nationwide,like the Interstate highway system.How much does an interstate cost per mile to build?There will be improvements as the technology matures, perhaps even one day approaching Tesla's dream of wireless power transmission over long distances.Then you would only need a tower array spaced properly.No hard wiring in the pavement.This could be extended to powering homes,etc.Now that billing can be done by satellite, I am convinced that Tesla's plans will be implemented.The reason it was never developed during his lifetime(IMHO) was there was not a known method to charge the customers for power used.Free power?"NEVER" said Edison,Westinghouse and others in powerful positions.I think his first prototype tower was sabotaged so that he would lose funding for further development.When he died,the government confiscated and classified all of his documents as top secret.We (the public) will never know the depth of this man's genius,and will never reap the benefits of his inventions and discoveries.His technology may be leaked out, in a piecemeal fashion, or someone else may rediscover what he discovered, but if there is no profit for the vultures, it will never fly.I know, some will say I don't really understand how business works if I believe there is a conspiracy to suppress new technology.

To them I say, they do not really understand human nature.

Read Vulture's Picnic to see what a few powerful men can do to the world.

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#2

Re: Charge-as-you-drive

09/13/2013 4:41 PM

1 watt at 30 feet for an EV? Is this an ants golf cart?

For a real EV you are going to be needing to transfer about 40,000 - 100,000+ times that power level.

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#3
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Re: Charge-as-you-drive

09/13/2013 5:05 PM

I do not mean a full charge.I mean a maintenance charge as you drive.How much power is required to move an EV 30 feet after it has attained cruising speed?With multiple transmitters properly spaced, it could be done,.And remember, this technology is still in it's infancy.

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#5
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Re: Charge-as-you-drive

09/13/2013 6:25 PM

Figure around 150 watt hours per mile minimum so if the vehicle is going 65 MPH it will need a source capable of delivering around 10 KWH or 10,000 times what the one watt power source is providing and that is just one vehicle.

In heavy high speed rush hour traffic you could have 200+ vehicles all going 65 MPH in that single mile of road!

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#6
In reply to #3

Re: Charge-as-you-drive

09/13/2013 7:17 PM

How much power is required to move an EV 30 feet after it has attained cruising speed?


A small car like a Leaf, when cruising at 60 mph, uses about 250 watt-hours per mile, or 15,000 watt hours per hour (which is another way of saying that it requires a power of 15000 watts continuously). Under brisk acceleration (or going up a steep hill) it will require 100,000 watts or so. So for cruising, if the device is not supplying 15,000 watts per car continuously, it is not keeping up with demand.


The issues involved in delivering one watt are very different than delivering 15,000 watts to each of numerous moving targets. The technology is not yet in its infancy for powering cars. Even the impregnation point is a long way off.


For one car, you'd need 15,000 transmitters at intervals of 30 feet. In a mile, you'd need 2,640,000 transmitters... but that's only for one car.

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#7

Re: Charge-as-You-Drive

09/13/2013 7:50 PM

Tell us you don't really mean it. Unless you live in a cave, your household power requirements are...............shall we say, lethal?

Burnt bird feathers stink. Need I go on?

What happens when it rains?

Lightning?

Dust?

Smog?

Let me count the ways.

I just came from a bar and this still doesn't fly.

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#8

Re: Charge-as-You-Drive

09/13/2013 7:54 PM

Ok guys,you are right. I should have done the math with a calculator instead of in my head.Those dang decimal points get a little scrambled here lately.

Well, I was right one time in my life:

That was when I thought I was wrong.

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#9
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Re: Charge-as-You-Drive

09/13/2013 9:08 PM

I think you should apologize to "big business" and "The Government"......

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#10
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Re: Charge-as-You-Drive

09/13/2013 9:39 PM

Read Vulture's picnic and then see how you feel about big business and Government.

My mistake was in math, not in judgement.

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#11
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Re: Charge-as-You-Drive

09/13/2013 10:45 PM

So, now we all know. Most of us already knew.

How do you propose to solve the problem?

You can't, we can't.

Unless you somehow find enough money to purchase Congress' votes to change the status quo, just hunker down and get used to it.

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#12
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Re: Charge-as-You-Drive

09/13/2013 11:16 PM

And just how would you change it if you could? Perhaps we could have the government and big business run by people who have sworn a vow of poverty? Well it seems if you're poor working class, nothing is fair, and everybody is corrupt....and if you're wealthy, everything is alright....and you should be able to support those that think as you do....So the system seems designed to run the way it does because somebody has got to do the work, (at least until they can be replaced with robots)....and somebody has to run these companies, which are not likely to be replaced with robots ...

When the government is too liberal, and has too many social programs, they go broke and society collapses, this leads to worse living conditions....When the government is too conservative, it becomes too powerful, and human rights fade away, and living conditions for the working class suffer....The answer is, there is no single answer....

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#15
In reply to #12

Re: Charge-as-You-Drive

09/14/2013 8:40 AM

Atlas Shrugged.

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#16
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Re: Charge-as-You-Drive

09/14/2013 1:35 PM

Moderation...

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#13

Re: Charge-as-You-Drive

09/14/2013 2:14 AM

Well we get there when we run out of fuel we currently use in our cars and trucks!

Only because its possible does not mean we do it!

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#14

Re: Charge-as-You-Drive

09/14/2013 7:49 AM

This is another lunatic idea, half cooked by incompetent people.

Not enough energy for the car and massive losses in the surrounding and the car metal from induction.

we are not even considering the maintenance nightmare and the almost impossible task of billing for the energy.

A winch cable that the cars would grab would work better...

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#18
In reply to #14

Re: Charge-as-You-Drive

09/15/2013 9:43 AM

Maybe catenary such as a trolley?

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#19
In reply to #18

Re: Charge-as-You-Drive

09/15/2013 12:24 PM

Or electric rails like the metro.

Or a big tube where the cars would zoom by like crazy on electrical propulsion... So 1960...

Joke aside. Most of these plans are not even going to save energy even if they sort of work. Unfortunately, our tax dollars are used to pay for test projects and support organizations that promote these pipe dreams.

Meanwhile, the air conditioning is running at the same time as the heating in most buildings, and most home don't have enough insulation. The shopping malls are freezing cold in the summer and way to hot in the winter. But that is boring stuff...

There are so many place where we can easily save energy (and money) before investing billions in crackpot ideas like that one.

Just install a geothermal heat pump for each house and building with big enough lots and they save half their energy without affecting the standard of living. There isn't much reasons why it is so expensive. I installed my own and the cost was ~$5000 more than the normal furnace/AC. It was paid for in a few years. What is wrong with us???

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#23
In reply to #14

Re: Charge-as-You-Drive

09/16/2013 2:44 PM

https://www.youtube.com/watch?v=5RqjH68sdeg

I guess the world needs more lunatic and incompetent people.

Check out this link I just received today.

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#24
In reply to #23

Re: Charge-as-You-Drive

09/17/2013 9:39 AM

Hi HTRN,

Sorry if I haven't read the entire post, but nothing about your original post seemed crazy to me. My questions regarded how we are often shown the "new and improved", but with little stats behind it to show the real advantage.

What I see here is a commercial approach to the issue, and that covers two areas: (1) potentially less expensive other methods; and (2) because it represents mass-transit, it fundamentally replaces other independent travel. What this needs is a municipal area to adopt it and bring it forward to reality. That will be the real-world test that will cause other municipalities to either embrace it also, or look for alternate solutions.

Kind regards ...

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#25
In reply to #23

Re: Charge-as-You-Drive

09/17/2013 1:56 PM

Anything is possible on a computer generated simulation.

No proof it works as advertised.

I am certain that the reality (if feasible) will be much harder than what they are claiming. Once all the un-accounted losses are materialized, their discourse will be less cheerful. This is very common of scholars who are paid to produce concepts without having to face reality. That is why they have great difficulty selling their "intellectual property"

Regards,

Marco

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#26
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Re: Charge-as-You-Drive

09/24/2013 10:59 AM
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#27
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Re: Charge-as-You-Drive

09/24/2013 11:34 AM

Interesting. I wish it was that good. Have you noticed that there still isn't any figures for power, speed, efficiency etc... I am not convinced yet.

People a worried by power line's magnetic fields. Wait until they are exposed to this...

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#17

Re: Charge-as-You-Drive

09/14/2013 11:27 PM

By incorporating an onboard solar PV or wind driven generator too, the battery of an EV could be charged.

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#20

Re: Charge-as-You-Drive

09/16/2013 3:21 AM

What about the Scalextric Solution?

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#21
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Re: Charge-as-You-Drive

09/16/2013 3:24 AM

This does work until you get into flight mode!

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#22

Re: Charge-as-You-Drive

09/16/2013 1:03 PM

Hi All,

I have a very ignorant question to ask:

I understand most of what I am told about fossil fuels, and I understand most of what I am told about the need to do something "alternative" and "sustainable", however ...

1) gasoline (pick your flavor) can move a ton or so 31+ miles on a volume less than 7x7x7 inches ... that's a lot of energy density ... can anything compete with that?

2) it's always intriguing to look at the new ideas, or said differently refined ideas that are less new, but I don't see any data about the cost to power and maintain these systems ... sure, the installation costs are large, but so is building a new factory or new roads and bridges, but once it's installed what will the cost be per distance to use it? My 7-year old, 120k+ mile car still gets more than 34MPG, so for gasoline only that means it costs me about $0.12 per mile (not including other maintenance, 'cause I figure the other vehicle types will need regular maintenance also)

3) not trying to be negative (truly), but if we are going to find something truly "alternative", we need to look deeper, farther.

Kind regards ...

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