Re: [Amc-list] ELECTRO-RAMBLER =revisited=

[Wrambler242@xxxxxxxxxxx]

OK so I'm now talking to myself again.
Here's the url for the electric Jeep.
http://www.driveev.com/jeepev/home.php
Tons of good info. Still 4X4 too! He comes right out and says it's not the best choice for an EV. Sure looks like it works though and 1/2 mile from my house sits two abondoned XJ's. Tempting, very tempting.

--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5

 -------------- Original message ----------------------
From: Wrambler242@xxxxxxxxxxx
> I stumbled on the website that the guy has who built the 4X4 XJ EV. Url is at 
> work. Google should be able to find it, try EV Jeep or somethignt o that effect.
>   Anyway, he says that electric DC motors get the best "economy" by running at 
> their rated rpm. So being as the rating on most DC motors commonly used is 
> 3600rpm, well, that would mean OD units are a waste of time. 
>    So saying one wanted to run the EV on the interstate at a max speed of 78mph 
> then one should gear it run 3600 rpm at 78 mph.  Driving the vehicle in town, 
> say with a stick, You could then pick the gear to get the motor at or near the 
> 3600 rpm spot again. 
>    If you think about it lugging an electric causes a need to increase the 
> amperage to maintain rpm.
>    So a 4 speed non OD trans would in fact be a fairly good tool to allow one to 
> be able to keep the motor at the "sweet" spot.
>    I want one to play with. I don't know that this urge will die quietly! If I 
> can just get my shoulder to calm down and let me get some work done!!!
>    Tomorrow will see the boat in the lake, One more project down.
> 
> --
> Mark Price
> Morgantown, WV
> 1969 AMC Rambler, 4.0L, EFI, T-5
> 
>  -------------- Original message ----------------------
> From: farna@xxxxxxx
> > In theory, yes -- hook it right to the driveshaft or axle. But in practice, 
> you 
> > need a hefty motor to get something heavy moving. So there's a compromise 
> > between motor size/weight/heat generated, and the current draw required. Seems 
> > it's better in the long run to use a transmission -- at least a two speed job 
> as 
> > Andrew keeps mentioning. That's why I figure a BW OD would be a good, light, 
> > easy to operate trans. That's only if you can electrically reverse the motor 
> > though. And have an electric lock-oout for the OD, which won't work in 
> reverse. 
> > That's easy enough to accomplish with a relay to cut power to the solenoid. 
> > Since multi speed automotive trannys are readily available and easy to use, 
> may 
> > as well use a smaller motor and take advantage of all the gear reduction 
> already 
> > there. 
> > 
> > ------------------------
> > Date: Wed,  2 May 2007 18:21:39 -0600
> > From: Ken Ames <ameskg@xxxxxxxxx>
> > 
> > Aren't electric motors like steam engines? Maximun torque at 0 rpm?
> > Should be able to run the driveshaft off the motor. The electric buses here 
> have
> > no tranny.
> > 
> > --
> > Frank Swygert
> > Publisher, "American Motors Cars" 
> > Magazine (AMC)
> > For all AMC enthusiasts
> > http://farna.home.att.net/AMC.html
> > (free download available!)
> > _______________________________________________
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> 
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