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Gavilan
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Scaling AC Regenerative Capable Traction Technology

01/29/2013 11:45 AM

Could Railroad AC Regenerative Capable Traction Technology be scaled to bicycle and automobile hubs?

How many 10 Farad - 2.5 volt super-caps would be needed to store a recoverable energy equal to the Kinetic Energy of a fat guy and his bicycle at best maintained speed?

How would additional rotating mass at the hub of a bicycle wheel affect its handling characteristics?

Is the rotational energy of the wheels a significant part of the total Kinetic Energy of a bicycle?

Would anyone like to discuss this topic?

Gavilan

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JPool
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#1

Re: Scaling AC Regenerative Capable Traction Technology

01/29/2013 11:53 AM

How would additional rotating mass at the hub of a bicycle wheel affect its handling characteristics?

Handling characteristics are already going to be trashed with a "fat guy" sitting on top of bike.

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JohnDG
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#2

Re: Scaling AC Regenerative Capable Traction Technology

01/29/2013 11:59 AM

Rough guide:

100kg bloke at 10ms-1: K.E. = 5000J

10F cap at 2.5V: Stored energy = 31.25J

That's 160 capacitors.

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Gavilan
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#5
In reply to #2

Re: Scaling AC Regenerative Capable Traction Technology

01/30/2013 1:34 AM

What percentage would you guess could be usable to drive a motor?

What would be the best circuit configuration for use in a safe voltage series hybrid bicycle?

Do they have the capability to capacitate at a power greater than the adhesion limits would allow from 10 m/s to 1 m/s?

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lyn
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#3

Re: Scaling AC Regenerative Capable Traction Technology

01/29/2013 1:06 PM

Yes.

Mazda announces world first capacitor-based regenerative braking ...
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Gavilan
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#4
In reply to #3

Re: Scaling AC Regenerative Capable Traction Technology

01/30/2013 1:07 AM

Here is another example that an automobile power application; but I was thinking something slightly down scaled to lets say 1 to 2 KW peak power for drive and maybe twice that for braking.

http://www.gizmag.com/acclaim-for-toyota-supra-hv-r-hybrid-race-car/8344/

Check out what they are doing in F1 here - http://reviews.cnet.com/8301-13746_7-57455402-48/audis-hybrid-takes-le-mans-victory-twice/

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corbinstein
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#6

Re: Scaling AC Regenerative Capable Traction Technology

01/30/2013 8:23 AM

Now if you can just use the "Fat Guy" as the Capacitor, you might just have something.......
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Tom_Consulting
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#7

Re: Scaling AC Regenerative Capable Traction Technology

01/30/2013 8:44 AM

Use the "fat guy" as power and eventually the handling will improve as weight is reduced!

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Gavilan
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#9
In reply to #7

Re: Scaling AC Regenerative Capable Traction Technology

01/30/2013 11:55 PM

The "Fat Guy" IS the prime mover of the process.

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HiTekRedNek
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#8

Re: Scaling AC Regenerative Capable Traction Technology

01/30/2013 9:29 PM

increase the voltage on the capacitors up to about 100volts.Using a speed sensor, when the bike slows down, apply voltage to the seat of the bicycle.This will cause rider to stand up,increasing pressure on pedals, increasing speed of bicycle to set point.Once the set point is reached,the rider can sit down and pedal at normal speed.

Still working on how to slow it down....

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corbinstein (1); Gavilan (3); HiTekRedNek (1); JohnDG (1); JPool (1); lyn (1); Tom_Consulting (1)

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