Just a guess:
The AFM controlling variable is determined by the shape of the airvane=20
and its mass.  The thermistor provides a delay into the equation and=20
assures a detectable hysteresis in the output solution.
The programmer was provided the measurements received in the output that=20
resulted with the varying inputs with the delay built in to keep it from=20
oscillating.
Mostly If statements if memory was dear, tables if brute force was=20
desired. I thought the designers were moving away from MAF and dummy=20
that parameter from RPM. At least there are sane ways to measure RPM.
The longer I write, the dumber my answer looks.... I will send it anyway...

On 11/5/2015 3:14 PM, 99guspuppet wrote:
> I mentioned that I opened up my AFM.
> I expected the wiper on the AFM potentiometer to
> track the engine RPM as I assumed RPM and airflow were
> linked proportionally.
> Instead I saw the wiper move up with increasing RPM,
> then drop back.  Since the RPM was hard to control
> ( the reason why I am looking at engine parts ) I was unable
> to make a reliable observation of exactly what happened.
> Any comments ?
>
> Gus in Denver

--=20
John Ferrell W8CCW
    Julian NC 27283
  It is better to walk alone,
than with a crowd going the wrong direction.
                   --Diane Grant


--=20
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