From: Ruud van Gaal (_KI_LLSP_AM_ruud@marketgraph.nl)
Subject: Re: Tire performance curves (cornering force, aligning moment)
Date: 2003-11-03 03:40:51 PST
on 2 Nov 2003 20:00:28 -0800, robert@roaduser.com.au (Robert Di
Cristoforo) wrote:
>Does anyone out there know of any sources of tire performance curves
>that give cornering force and aligning moment as a function of slip
>angle and vertical load?
You can use Pacejka's Magic Formula (there are a bunch of variations
though) for that. Pacejka recently finished a book on his latest
formula (and other tire stuff).
Racer uses car.ini files which contains Pacejka sets. Some may have
been tweaked to get a somewhat different tire, but they're mostly
based on about 5 base sets. Try www.racer-xtreme.com and download
some cars to get some Pacejka sets (note I'm using quite an old Pacejka
formula with a, b and c coefficients.
You can see a (half-finished) explanation of the formula at
http://www.racer.nl/reference/pacejk
Good luck, (good data on this is hard to come by)
Ruud van Gaal
Free car sim: http://www.racer.nl/
Pencil art : http://www.marketgraph.nl/gallery/
Magnus Thomé
