Date: Mon, 6 Oct 1997 12:33:07 -0600 (MDT) From: Nate Williams <nate@mt.sri.com> To: Mike Smith <mike@smith.net.au> Cc: cliff ainsworth III <cliff@cliffsworld.com>, freebsd-hardware@freebsd.org Subject: Re: project truck.....ideas wanted Message-ID: <199710061833.MAA01027@rocky.mt.sri.com> In-Reply-To: <199710061701.CAA02693@word.smith.net.au> References: <3.0.3.32.19971005203340.006a12ec@mail.internexus.net> <199710061701.CAA02693@word.smith.net.au>
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> Just off the top of my head, you'll probably be interested in: > > - inlet air temperature and pressure > - exhaust temperature, pressure and oxygen concentration > - knocking > - timing advance & dwell > - throttle position > - engine RPM > - fuel pressure & flow rate > - oil pressure, temperature (engine, transmission, maybe diff) > - tailshaft RPM (wheel speed) > - ground speed (fifth wheel, ground doppler, other techniques?) > - coolant temperature, pressure > - outside air temperature > - inertials (2D or 3D accelerometer) Barometric pressure, moisture (as long as we're dreaming ;) > GPS might be useful depending on the length of the run; I suspect that > its basic accuracy won't be good enough to give you useful figures. Actually, GPS is *very* accurate. If you really want to do GPS, setup a stationary unit, and use the data collected from it. You can get better than 1-meter accuracy that way (differential GPS.) > Watch out for fifth-wheel speed recorders; they have a tendancy to > disintegrate under severe conditions. Not only that, they tend to slow you down. :) Nate
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