Re: 'Coming in on a Plate and Prayer'

["Bob Rice" <bobrice@snet.net>]

----- Original Message -----
From: David Roden (Akron OH USA) <roden@ald.net>
To: <ev@listproc.sjsu.edu>
Sent: Wednesday, January 30, 2002 11:23 AM
Subject: Re: 'Coming in on a Plate and Prayer'


> On 28 Jan 2002 at 23:16, Bruce Parmenter wrote:
>
> > Rather than freezing my tush, I though I would chance it,
> > and be very careful to draw as little current as possible.
> >
> > Being late at night (9 pm) does not mean there is less
> > traffic. But it was down hill most of the way. Instead of
> > starting in first and changing up to second at 15 mph, I
> > would start in second, and change up to third at 10 mph.
> > This shifting up early worked well for me.
>
> Now, that is very odd!  In every DC EV I've driven, shifting early makes
> the motor draw ~more~ current from the batteries, not less.
>
     Good point. When I'm outta juice stay in low gear, like first and TRY
to keep the voltage up so not to reverse ALL the cells, and the amps down.
Hadya been able to wire out that smoking boiling battery yuda done much
better, albiet at a lower voltage. Or in reality higher voltage, as you
wouldn't have been using power to boil that battery. Done THAT when I found
a battery lying down on the job. One very nice thing with a solid state
controller I couldn't with a contactor Series- Paralled system.

     Glad to hear that yu have some fresh new batteries going in as I write.
Yur EV grin will come back, big time, when yu sweep by the spots that were
iffy before. I speak from experience, here!

> I thought you had a conventional series motor, but maybe not.  What kind
> of motor and controller do you have?  Have you gotten your hands on
> something unusual and exotic there?
>
>   Hope so<G>!

     Bob