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Author Topic: Self-Running Bedini Bike!  (Read 19890 times)

Elliot Gain

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Self-Running Bedini Bike!
« on: December 24, 2009, 04:11:28 PM »
..at least thats the idea.  Ok so I am new to all of this, but I have started to assemble a bedini circuit, haven't got it running yet however... 

I want to attach the bedini circuit to my electric bike and charge a battery as I ride, using the wheel as the rotor, I will attach magnets to the wheel, place an EM coil on the frame so the magnets pass by it, and then capture that energy in the bedini circuit fashion, flyback voltage or whatever.
However I dont think I will even need the seed energy since that will be provided by the electric motor/me pedaling, so can I just leave the power battery out of the circuit?  If thats the case do I even need a trigger/power bifilar coil or can I simply use a single wire coil?
The electric bike has a spot for two batteries and runs off 24V SLA.  It also has a handy switch to go between two batteries.  I figure I can use one to run the bike, and charge the other.  What do you all think of this idea?  I could even add coils to get it more efficient yes?  I mean with the bike I have two rotors (wheels) spinning all the time with all that energy not being tapped at all.  Whats the best way for me to tap this energy?  Your thoughts are appreciated.

Low-Q

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Re: Self-Running Bedini Bike!
« Reply #1 on: December 24, 2009, 04:20:08 PM »
If you can, you place several coils on it. Maybe it works better than only two?

Using the wheel as the rotor will reduce loss compared to using transmissions etc - good idea!

Vidar

Elliot Gain

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Re: Self-Running Bedini Bike!
« Reply #2 on: December 24, 2009, 04:29:43 PM »
If anyone is familiar with the bedini circuit or electronics and could let me know what I would need to get this going?  If I could just use the standard circuit or if I should modify it since I dont need the seed power?!?!  Your input is appreciated.

Low-Q

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Re: Self-Running Bedini Bike!
« Reply #3 on: December 24, 2009, 04:35:00 PM »
THe circuit is explained somehow here:
http://www.youtube.com/watch?v=yi7cmUpMdX8

mr_bojangles

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Re: Self-Running Bedini Bike!
« Reply #4 on: December 31, 2009, 12:42:11 AM »
welllllll, it wouldn't run itself


you would be giving a force equivalent to the weight of the bike, friction of the wheels, and time (how fast)

each time you add something to this (your body weight, going faster, uphill, over rocks, dirty wheel axles), it takes more and more energy input to keep the bike going

the thing with generators is that the faster you spin them, the more energy it takes to keep it spinning

this would feel like gradually biking onto sand, it takes more energy to go the same distance, like a generator


you would need a decent sized motor to power a bike, which is why most electric bikes are "hybrid" human power and electric

as Low-Q said, you do have an interesting new approach, but it wouldn't nearly run itself

the benefit of your system would be in regenerative breaking, and going downhill

that would be zero input, a decent amount of output

uphill would have the opposite affect, and flat surface would not do much


another benefit of your system would be the distance of the magnet from the axle, which is big, meaning a faster speed with the same amount of angular rotation

i think it would be a bit difficult to fix the magnets onto the wheel itself and keep them there, but that might be the least of your worries


start out with a stationary bike, or just build a little stand to lift off your back tire, and see what you can do with it

Elliot Gain

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Re: Self-Running Bedini Bike!
« Reply #5 on: December 31, 2009, 02:41:05 AM »
Thank you for your thoughtful reply.  Yes I figure it will just be slightly more efficient and I will just keep making improvements to it.  It is a pedal assist bike so that will help.  I was thinking of attaching the magnets with gorilla glue to the rubber of the tire where it meets with the rim, dont know how well they would stay on I guess Ill find out.  :)
Any more comments are appreciated..
Like I said I am still working on just winding the coil and getting the Bedini circuit working, I will keep you all posted.

Paul-R

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Re: Self-Running Bedini Bike!
« Reply #6 on: December 31, 2009, 01:15:56 PM »
The essence of the Bedini SG/SSG is that it finds its own optimum speed. It is a generator which
charges batteries with radiant energy, rather than a motor.

The batteries to be charged may not deliver current whilst they are receiving it.

Cloxxki

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Re: Self-Running Bedini Bike!
« Reply #7 on: December 31, 2009, 01:41:12 PM »
I love bikes, and making them easier to pedal!

Your bike would not be pedal-assisted, unless you'd top off the (huge) batteries before leaving home on it. They would be empty when you return from a good ride I'm afraid, although the Bedini gospel implies differently.
It would be most interesting to learn if direct drive using the leverage of the outer wheel as you propose, would improse efficiency over hub-mounted engines. Open versus closed, perhaps?
In any case, and this is from a bike nut, use the rear wheel if you're going to use anything heavy. I bike with a lightweight front, feels lighter to right, more agile. Most, but not all, people are into that.

In extreme cases such as long rides with tail wind (storm) you might switch between braking on the engine, and using it to get even more speed. If you plan to overcome a big hill, better not have an empty battery and a super heavy bike before you reach summit :-)
Oh, my advise to use rear wheel drie doesn't fly if the torque you manage to crete gets out of hand. Or, you'd need to place the rear wheel way aft. Else, uncontrollable wheelies :-)

Good luck! I'd love to hear of your progress. It may well be real progress for the bicycle industry, and real money is made there, by some. A buddy of mine is product manager to one of those, and has eBikes in his portfolio.

Regards,
J

Elliot Gain

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Re: Self-Running Bedini Bike!
« Reply #8 on: January 08, 2010, 01:41:11 AM »
Just would like to reiterate that I AM NOT trying to make the bike tires into the motor, the bicycle already has a motor, not the hub type but attached with a short chain to the back tire.  What I am doing is turning the bike tires into generators to charge the a battery on the back, while using another battery to run the motor, when the power battery dies, I can switch out the batteries and start charging that one, this I am hoping would make the batteries last longer.  Now I am wondering what the best way to use the spinning wheels to generate power would be without adding to much an extra load on the motor (and me pedaling) so I figured from my research that the bedini circuit (let alone if it can self-run or not) is the best at capturing energy from spinning magnets, so can anyone who understands the bedini circuit or who knows of a good circuit to use in capturing current from passing magnets, LET ME KNOW THANKS!

nightlife

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Re: Self-Running Bedini Bike!
« Reply #9 on: January 08, 2010, 09:08:53 AM »
  You would double the torque if you use both poles of the coils. Keep that in mind when designing. Otherwise the unused pole is wasted. You can not have one pole without having the opposite and one pole can not be any stronger and or any weaker then the other. They are equal and both must be utilised to acquire the best results.  ;)

Elliot Gain

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Re: Self-Running Bedini Bike!
« Reply #10 on: January 08, 2010, 08:02:48 PM »
  You would double the torque if you use both poles of the coils. Keep that in mind when designing. Otherwise the unused pole is wasted. You can not have one pole without having the opposite and one pole can not be any stronger and or any weaker then the other. They are equal and both must be utilised to acquire the best results.  ;)

Would I be able to gain more energy from them using both poles?  And how would I go about doing that, Horse shoe coil?  I am not using the coils for a motor I am trying to use them to capture current to charge a battery.

nightlife

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Re: Self-Running Bedini Bike!
« Reply #11 on: January 09, 2010, 12:53:03 AM »
uote author=Elliot Gain link=topic=8520.msg220665#msg220665 date=1262977368]
Would I be able to gain A from them using both poles?  And how would I go about doing that, Horse shoe coil?  I am not using the coils for a motor I am trying to use them to capture current to charge a battery.
[/quote]

  I never thought about that concept before.  I am not sure if I am understanding you correctly but the following picture is what I have in mind. It is a four coil design with one powering and three collecting.