[ausev] question about Geo Metro conversion

[Lisa Korf]

Yes, he is using the shunt motor kit from Wilderness
EV.  I'm wondering about others' experience with this
type of motor.  It's basically the cheapest conversion
kit out there. 

I am using the series motor from Wilderness EV in
mine.  I'm hoping it won't be too hard to upgrade to
higher voltage in the future if my 72 volt Civic
doesn't meet my needs... which I keep hearing might be
the case.

Thanks!

Lisa


--- Aaron Choate <achoate at gmail.com> wrote:

> Hi Lisa,
> 
> Welcome to the list.
> 
> Is this person using the same kit/manufacturer as
> you mentioned to me in
> your email the other day?  I think you had mentioned
> that your Civic was
> being done by Winderness Electric Vehicles.  I found
> this link that seems to
> revolve around a shunt motor.
> 
> <http://www.e-volks.com/about1.html>
> 
> Cheers,
> 
> Aaron Choate
> 
> On 1/3/07, Chris Robison <eeyore at phototropia.org>
> wrote:
> >
> > Hi Lisa,
> >
> > First, we really don't have enough information.
> What is the size of the
> > motor? By "no controller", does that mean
> "contactor controller", or
> > literally no controller at all (just a simple
> switch), meaning there's
> > nothing between "coast" and "full throttle" ? What
> size are the batteries?
> >
> > Honestly, I doubt this car would be worth much at
> all. Probably far less
> > than the value of the parts. It sounds like your
> friend is making a lot of
> > mistakes in his design that are seriously limiting
> his car's usefulness.
> > 96 volts is barely enough for a satisfactory
> vehicle, and 120 is generally
> > the minimum I'd recommend. At the 72 volts your
> friend has planned, this
> > car will be confined to slower, smaller streets.
> It won't be very useful
> > as a car (not in the US, anyway).  The choice of
> batteries also sounds
> > suspect; Interstate makes all sorts of batteries
> including deep cycle
> > marine and RV batteries but if he's using their
> far more common regular
> > car batteries, they will be quickly ruined by the
> deep discharges they'll
> > experience while powering an EV.
> >
> > Finally (and this is not as big of a deal) the
> shunt-wound motor is going
> > to be less than ideal for use in an EV.
> Series-wound motors are more
> > advantageous, giving higher startup torque and a
> smoother torque curve vs.
> > RPM.  There are EVs out there that have been built
> with shunt motors, but
> > not many.
> >
> >   --chris
> >
> >
> >
> >
> > On Tue, January 2, 2007 11:00 pm, Lisa Korf wrote:
> > > I have a friend who is working on a Geo Metro
> > > conversion using a shunt motor.  He wants to
> sell it once it's
> > completed...
> > > any idea how quickly it would sell, and how much
> he should ask for
> > it?  It
> > > will have 12 6-volt Interestate batteries, and
> no controller I
> > > believe.  Thanks for any input you can provide. 
> I really would like to
> > get
> > > multiple opinions about this.
> > >
> > > Thanks,
> > >
> > >
> > > Lisa - new to the EV community, awaiting arrival
> of my
> > > electric Honda Civic hatchback for me and my
> dogs :)
> > >
> > >
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