Re: How to build a hybrid moped

Noah K /
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Electric motors and generators are pretty efficient, batteries slightly less. So if you want to use the gas engine as a generator:

90% generator efficiency

90% electric motor efficiency

80% battery storage efficiency

So 0.90.90.8 = 64.8% efficiency

You could improve the engine efficiency over normal use by keeping it in its powerband, but even so a 65% conversion efficiency will suck up the possible benefits. I would use the same method as hybrid cars, high torque electric motors for low speed and then gas kick in after 10 to 15 mph.

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Subject Written By Posted
  How to build a hybrid mopedTopic by: trickshot63 trickshot63 07/14/08 11:14AM
  Re: How to build a hybrid mopedRe: Zeke Zeke 07/14/08 11:29AM
  Re: How to build a hybrid mopedRe: trickshot63 trickshot63 07/14/08 12:05PM
  Re: How to build a hybrid mopedRe: Zeke Zeke 07/14/08 12:15PM
  Re: How to build a hybrid mopedRe: MadisonMed MadisonMed 07/14/08 12:31PM
  Re: How to build a hybrid mopedRe: trickshot63 trickshot63 07/14/08 12:36PM
  Re: How to build a hybrid mopedRe: Zeke Zeke 07/14/08 01:36PM
  Re: How to build a hybrid mopedRe: Noah Noah 07/14/08 01:25PM
  Re: How to build a hybrid mopedRe: trickshot63 trickshot63 07/14/08 01:42PM
  Re: How to build a hybrid mopedRe: davey davey 07/14/08 01:29PM
  Re: How to build a hybrid mopedRe: davey davey 07/14/08 01:43PM
  Re: How to build a hybrid mopedRe: trickshot63 trickshot63 07/14/08 01:47PM
  Re: How to build a hybrid mopedRe: jack jack 07/14/08 01:57PM
  Re: How to build a hybrid mopedRe: trickshot63 trickshot63 07/14/08 02:00PM
  Re: How to build a hybrid mopedRe: trickshot63 trickshot63 07/14/08 02:02PM
  Re: How to build a hybrid mopedRe: MadTownMick MadTownMick 07/14/08 06:26PM
  Re: How to build a hybrid mopedRe: Alex Alex 07/14/08 02:29PM
  Re: How to build a hybrid mopedRe: elliot in England elliot in England 07/14/08 04:43PM
  Re: How to build a hybrid mopedRe: Noah K Noah K 07/14/08 06:52PM
  Re: How to build a hybrid mopedRe: JunkyardDog JunkyardDog 07/15/08 03:43AM
  Re: How to build a hybrid mopedRe: Aj Aj 07/14/08 04:56PM
  Re: How to build a hybrid mopedRe: Brian Solex Brian Solex 07/14/08 06:01PM
  Re: How to build a hybrid mopedRe: buckswilde buckswilde 07/14/08 06:17PM
  Re: How to build a hybrid mopedRe: JunkyardDog JunkyardDog 07/15/08 03:07AM
  Re: How to build a hybrid mopedRe: Brian Solex Brian Solex 07/15/08 07:32PM
  Re: How to build a hybrid mopedRe: oFace Killah oFace Killah 07/14/08 06:21PM
  Re: How to build a hybrid mopedRe: elliot in England elliot in England 07/14/08 06:43PM
  Re: How to build a hybrid mopedRe: MadTownMick MadTownMick 07/14/08 07:12PM
  Re: How to build a hybrid mopedRe: MadisonMed MadisonMed 07/14/08 07:18PM
  Re: How to build a hybrid mopedRe: Aaron SE Aaron SE 07/14/08 11:38PM
  Re: How to build a hybrid mopedRe: Eric P Eric P 07/14/08 11:51PM
  How to build a hybrid mopedRe: sojudave sojudave 07/15/08 12:32AM
  Re: How to build a hybrid mopedRe: trickshot63 trickshot63 07/15/08 01:16AM
  Re: How to build a hybrid mopedRe: dariuskyne dariuskyne 07/15/08 09:58PM
  Re: How to build a hybrid mopedRe: trickshot63 trickshot63 07/15/08 11:00PM
  Re: How to build a hybrid mopedRe: fastone fastone 07/17/08 02:31PM

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