control algorithm for MAF setup

[Roy]

Dave Williams wrote:
> 
>  Hokay, the guy doing the output board is done with the injector part so
> I can start playing.  The Ford MAF appears to be sensitive enough to use
> for full range all the way down to idle - with it hooked to a DVM, the
> motion from someone walking by is enough to read on the display.  So I'm
> looking at a simple three-element array, kg/sec fuel, kg/sec air.  Since
> I'm not using a catalytic convertor I don't want stoich - most
> references show something like 16.5:1 (lean) as optimal for economy, HC,
> and NOx for non-cat operation at cruise.  The third element of the array
> would be WOT A/F ratio.  I have plenty of RAM to play with, and it'd
> allow a little more flexibility than a hardwired richen factor.
> 
>  That means I won't be using the O2 sensor other than as a check for
> some sort of fuel system failure at WOT, since I'll always be lean at
> cruise and rich at WOT.  I might be better off watching EGT.
> 
>  ====dave.williams at chaos.lrk.ar.us========================DoD#978=======
>   can you help me...help me get out of this place?...slow sedation...
> ain't my style, ain't my pace...giving me a number...NINE, SEVEN, EIGHT
> ==5.0 RX7 -> Tyrannosaurus RX! == SAE '82 == Denizens of Doom M/C '92==
> 
FROM ROY SPECTRICS LTD

Remember with the MAF sensor it will measure airflow in both directions
and in the FORD strategy there is a lot of compensation for backflow and
pulsation at low engine speeds.