Re: Tire performance curves

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/pacejka.htm

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/

men racer har väl fortfarande ingen däcksdeformation etc?

tror man måste göra om pacejka för det.

Kollar att ni är med

IRL eller Racingsimulatorer?

Känner liksom bara partiell förståelse på nåt vis!