TPS based boost control?

[Bruce]

> i hear the aftermarket companies brag about their AI "fuzzy logic" that
> their electronic boost controllers use to keep the wastegate completely
> closed as long as possible and just pop it open at the last instant... is
> there any sort of logic like this built into the stock code?

In engine control fussy logic means covering ones butt, cause they couldn't
tune things in.  Learning is something else, and IMO, might be (if done
right) just slightly better then just straight feedback.

 i would assume
> that if you just waited till you see the boost you're looking for to open
> the wastegate that it would be too late -- you'd get too much boost...
but
> is the rate of boost increase something that the computer is just
hardcoded
> to predict or does it have "learn" values like it does with fueling, etc.?

With enought resolution, and proper programing there is little go gain, in a
full feedback controlled engine At This Stage.
Simple strategies like detonation override for wastegate DC is just fine,
bruce
>
>
> >
> > Bailey Eng.'s Bsct Contllr for the GN acts similiar to that.
> > In the GN code there is wastegate vs rpm, and with a little twisting of
> code
> > could go % wastegate DC by TPS.
> > GN code also has a wastegate DC cut by gear so to limit boost as the
aero
> > load increases.
> > Bruce
>
>
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