If you want to pattern this after an automobile hybrid then the small gas motor would provide the main motive power with the electric as a boost. There is a Hartz Diesel engine available that could act as a primary drive.
If you are determined to go this route: The generator to battery to motor controller/motor route unless the gen output is a close match to your battery pack voltage is going to suffer from the AC to DC conversion losses (significant). So for a 72V battery pack the output of the generator would have to be in the 85V range with regulation. There was a guy here converted a Ranger to EV with a Gen backup, the bloody diesel gen was the size (physical) of the original ICE and sat in his truck bed!! No, not so good. Jeff On Tue, Apr 1, 2008 at 11:20 AM, Andrew <[EMAIL PROTECTED]> wrote: > Due to my commute it has to be that range. I've previously been commuting > 72 miles one way, then 62miles, 56miles, then 42. So I'm improving on that > front. But it's still a haul. The only reason I'm looking into an EM is to > save money. I already commute on my motorcycles daily. But with gas > approaching $4 even I cringe filling up the tank. > > I think a hybrid is my only option from all I've read. I think some of the > ranges I've read are bloated braggings. > > I was thinking along the lines of a modified alt. with the voltage reg > replaced to output 60 or so volts. I know some alts can produce in the > neighborhood of 100+ amps. What would be interesting is an electric start > gas engine that could be cycled on and off as demand required. > > If anything, it's still something I'd like to tinker with, even if I only > used it for local jaunts. > > Andrew > > > > On Tue, Apr 1, 2008 at 12:42 PM, john fisher <[EMAIL PROTECTED]> wrote: > > > Andrew after reading this list and the EVDL, you'll quickly find out you > can't use automotive or marine starting > > batteries. The other bad news is the DOD problem. Most people report that > very roughly more than 50% DOD ( depth of > > discharge) shortens the battery life unacceptably - see the endless pages > of discussion on DOD on the EVDL archives. > > > > I am interested in building series hybrids with very small clean gensets, > if you want to talk about that. Its probably > > the only way I can go with my long-term project as large-enough lithium > packs are still out of my budget. I have even > > been mulling over electric road-racers with tiny gensets, if anybody wants > to chew that idea. > > > > John > > > > Andrew wrote: > > > Hello, > > > > > > I'm gathering information on how I to build an EM. ... What's the > > > > > > > > > feasibility of a deepcycle battery from a local store (to save shipping > > > costs of multiple batteries) > > > > > > Thanks, > > > Andrew > > > > > > > > >
