Electric Car That Never Needs To Be Plugged In?

Because it defies the laws of physics? That may be one small limiting factor.
I think Tesla already has regen braking.

 

<div class='quotetop'>QUOTE(jeffelectric @ Nov 22 2007, 03:29 PM) [snapback]543013[/snapback]</div>

Man-made laws can be broken, but not the laws of physics. It looks like you are describing a perpetual motion machine. Google that phrase and see why it's a non-starter [pun]

 

No one has managed to prove Mr Newton's theories on energy to be wrong yet.
Moving a body through a fluid will make the fluid move converting the energy moving the body into energy moving the fluid and heat. Tyres rolling down the road get hot radiating energy into the environment.
Energy can neither be created or destroyed so that energy must come from somewhere.
Energy to turn a generator must come from somewhere.
Have you ever ridden a bicycle with a generator light outfit? The energy to turn the generator comes from your legs, you can feel it!
This is all about grade 6 science.

 

<div class='quotetop'>QUOTE(Fibb222 @ Nov 22 2007, 07:06 PM) [snapback]543021[/snapback]</div>

The way to understand this is to think of a bouncing ball. Each time it bounces the height gets smaller. Why? because there is some energy loss/transfer when the ball hits the ground. Eventually the ball stops.

The same thing would happen with your pulley system. The pulleys would transfer/take some of the energy as they go around. Thus there would be a net loss of energy.

Energy is not something that is free. It has to come from somewhere.

 

<div class='quotetop'>QUOTE(jeffelectric @ Nov 23 2007, 08:59 AM) [snapback]543013[/snapback]</div>

But that would be naughty wouldn't it? :blink:

 

There is a much cheaper way to achieve the same thing, and it's already been mentioned on this forum at least once. You put a magnet on a stick and place it in front of your car, and it pulls you along. Same thing, no moving parts, and much cheaper. If you want to go faster, you use a bigger magnet.

I guess you've never heard of the three laws of thermodynamics.

 

<div class='quotetop'>QUOTE(priusenvy @ Nov 23 2007, 10:27 AM) [snapback]543035[/snapback]</div>

If it was an electro magnet like they use to lift scrap metal you could use the energy from the battery to make it stronger like 200 volt strong or from the inverter at 500 volts, wow, how fast could you go?

 

Happy turkey day, TURKEY!

I like that the OP says "putting the laws of physics aside," because that's the only way this idea is going to happen.

So, Jeffelectric, since you have what's obviously a billion dollar idea, why blab about it online? Go prototype it, patent it, sell it and retire tomorrow and live like a king!!

 

solar

 

<div class='quotetop'>QUOTE(jeffelectric @ Nov 23 2007, 02:17 PM) [snapback]543240[/snapback]</div>

Hi Jeff,

Lets start with the Tesla. Ok, the driver plants his foot, what happens? The electrons flow (wire gets warm, battery gets warm, both from resistance), Motor turns (wire in motor gets warm), gears turn (gears and oil get warm), bearings turn (rollers and grease in bearings get warm), tires turn (rubber in tire sidewalls flex and get warm). Go over about 25 mph, and pushing the air out of the way so fast heats up the air and skin of the Tesla. Everything that gets warm has heat energy flowing out of it into the enviorment, which originally came from the battery as electricity. There is no mechanism for returning this heat into battery energy. So, when one brakes, that missing energy that was turned into heat does not come back. And eventually the battery has no more energy to give. This is why a Tesla cannot be turned into a perpetual motion car.

This is how the Tesla does so well because electric motors are not socalled prime-movers, and are consequently very efficient in taking electricty in and creating motion. The prime-mover is the turbine in the power plant that charged the battery. Prime-mover effiiciency is very much worse than electric motors. Even a power plant is only at 55 % of so, running all day long, all warmed up, at the same speed. Standard car engines are only 10 to 20 % efficient depending on driving conditions. That is why the Tesla is such an outstanding improvement. It does not have a prime-mover to haul around, and it relies on a prime mover that is 3 to 5 times more efficient than a standard car.

As to the 60 mpg Hummer, well, that is an un-reveiwed claim. Under what conditions are we talking about? Is it really just a hybrid, and not a Plug-In hybrid ? A Plug-in Hybrid Prius have shown 172 mpg consumption at speeds lower than 40 mph one-tank average (something like 1700 miles of driving). Which works out to 110 mpg-ge (gasoline equivalent, this takes into account the electric energy used). Will the modified Hummer get 60 mpg-ge running down the road at 70 mph ? I doubt it. Is this what people are thinking after reading that article - probably. Or is 60 mpg only possible at 25 mph ? A diesel has good part load efficiency, and in combination with the hybrid system, the engine can be run at a more efficient higher power for a short time, that sounds possible. But is it practical to get that 60 mpg out of this system in everyday driving like the Plug-in Hybrid Prius, unlikely. Is it possible to get 60 mpg squealling the tires with all that torque - no way!

Various groups are claiming mileage as a political message to show how the US can reduce imports. One needs to be careful what the total energy being used is, not just the reduction in gasoline consumption.

 

<div class='quotetop'>QUOTE(jeffelectric @ Nov 23 2007, 09:17 AM) [snapback]543240[/snapback]</div>

You are describing a perpetual motion machine. People have been trying to design one for generations. Since the law of physics cannot be put aside, such devices will never succeed.

Wikipedia® - History of perpetual motion machines

 

<div class='quotetop'>QUOTE(jeffelectric @ Nov 22 2007, 06:04 PM) [snapback]543006[/snapback]</div>

Ah, a perpetual motion car!

 

<div class='quotetop'>QUOTE(Godiva @ Nov 23 2007, 10:37 AM) [snapback]543270[/snapback]</div>

ya right... as soon as you rear end someone, there goes all your momentum!!

 

<div class='quotetop'>QUOTE(jeffelectric @ Nov 22 2007, 06:04 PM) [snapback]543006[/snapback]</div>

The problem here is that you are talking about something you don't know anything about. I can talk about how I want to grow a corn plant thirteen meters tall, with hundreds of one meter ears of corn around the top, but if I can't be bothered to learn a little biology, I'm never gonna' get my giant plant, and I will never understand why I can't actually do something, when I can so easily imagine it.

The man-made world has man-made rules that we can break if we choose. The physical world has physical rules that no human being has ever broken, either because it can't be done, or because no one has ever known how to do it. The odds are pretty weak that you will be an exception.

If you want a better car, that's doable. There's a lot of room out there for improvement and you have as much oportunity as anyone. You are however up against people who know things you don't, and this gives them a heavy advantage. It's like a professional poker player going up against a child. Who do you think is going to come out with the most chips?

This particular field where you are looking around is called physics. It is the study of physical things and physical systems and how they behave. One of the nice things about it is that it is open to anybody, and it can be checked up on by anybody. You are clearly bright, literate, and interested in building a better mousetrap. Go read up on it and you'll understand why some things we just can't do. You'll also see that there is a lot of room for stuff we can do and nobodies done it yet. Once you know what you're doing maybe it'll be you comes up with the better car.

I can get you one of those, but I'll need an infinite frictionless plane to run it on. I seem to have misplaced mine, you got one I could use?

 

<div class='quotetop'>QUOTE(kenmce @ Nov 24 2007, 01:30 PM) [snapback]543603[/snapback]</div>

Sorry. I seem to have left it in my other pants.

 

<div class='quotetop'>QUOTE(jeffelectric @ Nov 23 2007, 09:17 AM) [snapback]543240[/snapback]</div>

Wichitaw; Arkansaw; Panamaw; Maw and Paw; Faw Law Law Law Law, Law law law law. Happy Holidays to us awl. Love Sherri