Re: (ET) Coasting with E20

["Christopher Zach" <czach computer org>]

Hm. Well, you should be going down hill *UNDER POWER*. That is the key; if
you let off on the gas the motor is not engaged, and cannot provide regen.

I have some pretty steep hills, and my typical tack is to mow in L gear and
put the cruise control in. That way going down hills is as fast as going 
up;
no faster. The L gear keeps the speed reasonable.

You get less regen when you're in speeds over 4; when field weakening is
active the motor will regen a *LOT* less.

Warning: If you bounce in the seat on the way down, the motor will cut out
and regen will be lost. When you do get the throttle back in, you will feel
the regen hit *strong*

Chris

----- Original Message ----- 
From: "Kleinbrahm, Bob" <rkleinbrahm firstrepublic com>
To: <elec-trak cosmos phy tufts edu>
Sent: Friday, January 23, 2004 12:02 PM
Subject: (ET) Coasting with E20


> Hello, I have a general question that I am hoping the group can give me
> some feedback on.  I have an E20 that I have noticed does not seem to be
> giving me any speed control i.e. motor braking, when I am in a coasting
> situation.  Normally this will not be a problem, but it is very
> frightening when going down a hill as my brakes leave a lot to be
> desired.  I have a brake upgrade order in with bill, but am wondering if
> this is normal.  Does the regenerative braking that folks are talking
> about mean that the et motor should provide a braking motion not under
> load as some other et type devices do, or am I misinterpreting how this
> works?  The tractor is a beast when it comes to momentum and I have
> visions of sailing right down steep hills and into waiting trees, etc.
>
> Thank You,
>
> Bob K.
>
> Bob Kleinbrahm
> Senior Network Engineer
> First Republic Bank
> San Francisco, CA.
> 415-288-1478
>
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