Re: (ET) RE: Hills

["Christopher Zach" <czach computer org>]

The regen braking on my E20 works fine as long as you're going in L or LL.
Once in D I think the gear ratio outweighs the regen.

Chris

----- Original Message -----
From: "Rod Hower" <Rod Hower ametek com>
To: "Elie, Larry (L.D.)" <lelie ford com>
Cc: <elec-trak cosmos phy tufts edu>; "'Christopher Meier'"
<mr23 mn rr com>; <owner-elec-trak cosmos phy tufts edu>
Sent: Wednesday, November 13, 2002 10:15 AM
Subject: Re: (ET) RE: Hills


>
> Here's another interesting suggestion.
> Since the E15 has a compound wound motor, you can increase voltage
> to the field on the hill to force braking.  Has anyone tried this?
> Perhaps the shunt field is not strong enough to cause regenerative
braking?
> Since I have a newer control system I think this is possible.
> Perhaps the shunt field could use a few more turns to increase field
> strength.
> I did a similar system on a sep-ex golf cart motor that was on a Cushman
> greens mower.  This mower is much heavier than an E15 but I was able to
> maintain
> the required 4 mph +/-0.5Mph except on steep hills.  I also worked with
> Jacobson on this
> system and they ended up patenting the speed control system.
> Rod
>
>
>
>