Why is it that engineers can't simply bolt on the required magnets to the wheels of a car to generate an alternating current as they spin? Why are we being told that it can only be generated when the car brakes. There must be a way to hook a car to a battery in such a way that once it has started rolling it can generate all the required energy using step-up transformers and gears or some such invention. Kind of like a bike's dynamo but in big. Store the surplus when it exists for when the car needs it. If mobile phone batteries have come so far along,we must be close.
Size might be the problem, but perhaps someone could put down some numbers for me. Average car with a family of 4, driving at regular speed limits, etc.
(Apologies to the community, my scientific mind just went off to order a cup of coffee or something stronger and left me with my question in my mouth and I've got my generator in a twist. I'm sure someone will kindly settle the workings of an AC/DC generator below
2007-02-16 07:08:47 · 13 answers · asked by NotsoaNonymous 4 in Cars & Transportation ➔ Other - Cars & Transportation
The magnets would create more resistance then energy, thats how everything is, thats why perpetual motion with out soler energy is not possible. And its being done on the Hybrids like someone else said, but thats only when they are breaking it charges the batteries. Hope this helps.
2007-02-16 07:15:42 · answer #1 · answered by Dina B 3 · 1⤊ 0⤋
Spinning Wheel Cars
2016-10-06 00:49:54 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Because you need to put energy into the wheel to spin it, using it to power a generator takes power off of it, so you'd be putting power into a wheel to get power out of it which is a waste. When the power is gotten from a braking car instead of letting the power of a already moving car be wasted as in a gasoline vehicle the hybrid uses the wheel to power a motor and is not putting power into the wheel just taking it out. That is the only time you can get 'free' power from the wheel.
2016-05-24 07:24:03 · answer #3 · answered by Anonymous · 0⤊ 0⤋
All you pinheads are attacking this guy and saying how it can't be done. It can. It takes a lot of engineers and a lot of money to develop such systems, but just because it isn't done today doesn't mean it won't be done tomorrow. Magellan didn't probably believe that we would visit the planets he and his peers used to navigate by, and now look. The idea(s) of regenerating energy and increasing efficiency are getting more refined every day. Semi trucks have for several years used electromagnets to slow themselves by applying magnetic force to the driveshaft. Intelligent automotive designers are always coming up with new innovative ways to capture unused energy released by burning petroleum-based fuels. There is nothing to say that such ideas can't be exploited even more to harness more and more energy that is currently wasted by a vehicle. What we need in place in order to make such things happen are bright positive-thinking minds. Like yours. The root of the problem is gross overconsumption in the United States. Cheap fuel is killing off creativity and innovation. Wait until it hits about five bucks a gallon. That's when you'll see your ideas make it to production.
2007-02-16 08:12:46 · answer #4 · answered by Me again 6 · 1⤊ 0⤋
The Alternators in your car produces electricity to recharge your batteries even when the car is idling.
Hybrids, however, use magnetic brakes to transform energy that would have been lost to friction back into electrical power.
There would be no point in doing this while driving because you are just burning fossil to produce electricity. Meaning, you are using your car as a generator and not a car.
2007-02-16 07:20:19 · answer #5 · answered by HUNG 4 · 1⤊ 0⤋
The Toyota Prius already uses this principle, but only when free-wheeling or slowing down.
It's uneconomical to generate electricity constantly as the petrol engine will have to overcome the resistance of the electric motors, thus using more fuel. (Remember how hard is was to cycle when the dynamo was on the bike tyre?)
2007-02-16 08:24:36 · answer #6 · answered by Anonymous · 1⤊ 0⤋
While something like this is being done to a degree you can't get something for nothing. In other words you can't generate enough electricity to replace the electricity being used to make it. Or...the generators can't make enough of a charge to sustain itself. An engineer explained this to me a while back and my feeble brain just remembers this much. Rest assured that if this would work it would be being done already.
2007-02-16 07:22:32 · answer #7 · answered by Anonymous · 1⤊ 0⤋
The additional work required would be greater than the energy generated. If not you would have a perpetual motion machine.
There are cars that get energy from the braking system.
2007-02-16 07:17:59 · answer #8 · answered by Anonymous · 1⤊ 0⤋
Already being done on some of the higher end hybrids. The downsized the technology from its railroad use as 'dynamic braking'.
It works 'ok', but not the way in which _I_ would like.
2007-02-16 07:12:33 · answer #9 · answered by credo quia est absurdum 7 · 0⤊ 0⤋
simply applying magnets would not work because a field must be placed around the magnets to make it work. My proposal is install a field around drive shaft or axles to generate power
2007-02-16 07:17:33 · answer #10 · answered by drackslair 2 · 0⤊ 0⤋