Just a heads up, I think I made some progress this morning after the
NASA guys got me thinking
Basic strategy,
keep track of the number of vss pulses (already do that) and accumulate the vss pulse lengths.
every 1/2 second compute the instant mph from the accumulated pulse lengths/number of vss pulses and reset.
I did a quick road test an instant mph is looking a lot better in the metro. Will release a new version when satisfied with it and when I integrate it into instant mpg.