[Diy_efi] DIY_WB and stand alone ems

[Bruce]

In a word, yes.
Have several sensors (perferably types), and do a 2 out 3 survey.   If 2 go
out of parameter things default to backup.

*Maybe* have one *system* as the primary, and run that.   Then the other 2
have a +- tweak factor in there.   Things go too far out of spec., and you
default.

If, I'm going to go to the trouble of having a C/L WOT, then I want to run
it full time, and have a high degree of asssurance that it's dead dumb
reliable.

If it takes 3-4 hours of driving time to **learn** in the backup parameters,
that's fine.  But the primary system should be VERY FAST at learning.   ie,
almost using a look ahead future, or maybe do that, and use the secondary
systems to make sure where were at is fine.

I think we're there hardware wise, we just need to wrap it all together.
Bruce



----- Original Message -----
From: "The Punisher" <punisher454 at hotmail.com>
To: <diy_efi at diy-efi.org>
Sent: Thursday, July 11, 2002 2:32 PM
Subject: Re: [Diy_efi] DIY_WB and stand alone ems


> Bruce,
> So are you saying that you like the concept of lookup tables at WOT better
> than C/L via wideband ? I understand the redundancy issue completly, but
> what about 2(or 3) WB's that must be within a certian percentage of each
> other for the uC to accept the reading. And have a "limp" mode if you
cannot
> verify the WB readings.
> I'm talking about a fresh computer design here, NOT adapting current
> systems.
>
> Punisher
>
>
> >From: "Bruce" <nacelp at bright.net>
> >Reply-To: diy_efi at diy-efi.org
> >To: <diy_efi at diy-efi.org>
> >Subject: Re: [Diy_efi] DIY_WB and stand alone ems
> >Date: Tue, 11 Jul 1995 13:27:57 -0400
> >
> >
> >    First Off, I'm not at all to the stage of supporting any C/L loop WOT
> >fuel controls.  So call me what ever names you want on that issue.   But,
> >at
> >this stage of the game, I'd want some redundancy in the system.  Using an
> >Acoustic Knock sensor at this stage is hardly enough to protect an
> >expensive
> >engine.
> >    As been said many times before the DIY-WB is designed as a tuning
aid.
> >Nothing more.  I would much rather see someone error on the side of
caution
> >then get into a bad situation.   If you're going to run a system, that
does
> >C/L, then use the entire system.  After all it's all engineered to to
work
> >together.  Who knows what little (or large) tweaks there are in the way
> >they
> >designed their system.
> >YMMV
> >Bruce
> >
> >
> >
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>
>
>
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