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Could car wheels be fitted with windings and magnets to make them generate electricity as they turn? The car would be a gas/electric hybrid. The batteries would be charged any time the vehicle was in motion.
Of course, motor/generators in wheels are the way to go, however
I was thinking of the wheel itself being the motor / generator. It need not necessarily be all that much heavier than a wheel that is not a motor. This would then allow software control of differential forces etc.
I had a 2CV with inboard discs! Revolutionary.
Umm... the present system is to use a chassis mounted engine with flexible drive to the sprung/suspended hubs.
Inboard disc pads are as easy to change as outboard pads
So you want movement of the wheel to not only move the entire drive-shaft but also the motor too???
QuoteInboard disc pads are as easy to change as outboard padsI can assure you that they're not, at least not on anything larger than a go-cart, although I do agree that inboard disks represent less unsprung mass. I think I've already said that.
Using an active suspension system could alleviate most of the control issues that come from increasing the unsprung weight, but they can do nothing to deal with the unnecessarily increased forces and wear upon the tyres and road that would also result from increasing the unsprung weight. It's a bad solution to an unnecessary problem.You should stop and ask yourself why, if this is such a better way of doing things, aren't they already being done this way?
The motor would be extremely light compared with an 'engine' and it would be right at the fulcrum
.....and why do you insist that a UJ is needed each end of the drive shaft?
If you generate energy by taking it out of the wheels' rotation it'll just mean that the engine has to work harder to keep the wheels rotating at the same rate. Also, as you're introducing another stage in the power chain, which will not be 100% efficient, you'll end up with s slightly less efficient system overall. As the others have said, it's only real benefit would lie as a braking system where some of the energy used to brake the car can be recovered instead of being wasted as heat.
That happens if you have generators that use kinetic force, that kind causes friction, but you can have a device that dont have resistance between the coils(static disc) and the magnets(rotative wheel), and using that type, this can be real possible..
Do you not understand that you need to do WORK on a generator in order to produce Power from it? Even if you were to eliminate the friction, you would still have to provide power equivalent to the product of the V and I from the generator.
Electrical power = V(volts) times I(current)That must be supplied from somewhere. You don't get it for free.However you get it. Wind generators will need to be pushed through the air by the motor - and don't say you're moving anyway because the motor will have to be pushing harder to provide the IxV again.
Any external input will be useful but solar cells are pretty low power, providing a few tens of Watts unless they are a Huge Area, as on a satellite. Best bet is to carry lots of charge in batteries. The latest design may give an advantage.Regenerative braking could return some of the Kinetic Energy of your moving car back into the battery. The hybrid system is a good one because the energy from the fuel doesn't have to be lost when you slow down and you can operate your engine at maximum efficiency. It ain't magic, though.
I'm afraid the last thing about 'back emf' is not right - or you didn't read it right. Back emf doesn't actually constitute a loss of energy.
dont understand u, you dont think it can be done?
light or not you will just be taking the energy u already produced for one reason and use it for another. this would most probably leave ur initial reason for producing that energy at a very big loss. also taking energy away from brakes will lead to their not working as effecients. car makers go out of their way to add extra energy into their braking sytems (eg bmw, heating the brake pads before the brakes are to be applied). you must produce heat in order to stop a car. if you make a system that somehow takes that heat away then there must be some performance that is decreased. producing a system that is more effecient in getting energy out of the fuel is the only salvation for mother Earth.