[CAR PHYSICS] looking for vehicule data base parameter

hi, i'm looking for a free data base where i could find vehicules and tires parameter such as stiffness, load sensitivity factor, longitudinal vs load curve, typical car angular inertia, tire spring rate and damping factor, and other technical stuff like that, measure from real stuff .... regards, Sebastien TIXIER - Game Developer Dynamics and Car Physics http://www.eden-studios.fr GPLRank Normal:-44.24 Monster:-124.44 LFS GTI Online 1:31:02 LFS GTI Offline (HLVC) 1:31:38

Some decent racing tire data is available from Avon at: http://www.avonracing.com/tech/dload.asp SB "Sebastien Tixier" <stixier@wanadoo[NO_SPAM].fr> wrote in message news:[email hidden]...

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> hi, > > i'm looking for a free data base where i could find vehicules and > tires parameter such as stiffness, load sensitivity factor, > longitudinal vs load curve, typical car angular inertia, tire spring > rate and damping factor, and other technical stuff like that, measure > from real stuff .... > > regards, > > Sebastien TIXIER - Game Developer > Dynamics and Car Physics > http://www.eden-studios.fr > GPLRank Normal:-44.24 Monster:-124.44 > LFS GTI Online 1:31:02 > LFS GTI Offline (HLVC) 1:31:38 >

Sebastian, Does the English phrase, "In your dreams", translate to French? In our experience, all this data is expensive to measure and what little is available is scattered all over the place. That's part of the reason why our library is so valuable. About the only place where a database as you describe might exist is within a large car or tire company, and you can bet that it's guarded carefully as a corporate asset. Just as an example -- good luck getting matching vehicle data to go with the Avon tire data (link below). I'd love to be proven wrong, but I'n not going to hold my breath. -- Doug Milliken http://www.millikenresearch.com/library.html On Wed, 8 Jan 2003, Steve Blankenship wrote:

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> Some decent racing tire data is available from Avon at: > > http://www.avonracing.com/tech/dload.asp > "Sebastien Tixier" <stixier@wanadoo[NO_SPAM].fr> wrote in message > news:[email hidden]... > > hi, > > > > i'm looking for a free data base where i could find vehicules and > > tires parameter such as stiffness, load sensitivity factor, > > longitudinal vs load curve, typical car angular inertia, tire spring > > rate and damping factor, and other technical stuff like that, measure > > from real stuff .... > > > > regards, > > > > Sebastien TIXIER - Game Developer > > Dynamics and Car Physics > > http://www.eden-studios.fr > > GPLRank Normal:-44.24 Monster:-124.44 > > LFS GTI Online 1:31:02 > > LFS GTI Offline (HLVC) 1:31:38 > > > > > >

On Wed, 8 Jan 2003 16:34:41 GMT, in rec.autos.simulators Doug Milliken <[email hidden]> wrote: > >Sebastian, > >Does the English phrase, "In your dreams", translate to French? Yes, absolutely : "dans tes r�ves" :-) Eric

On Wed, 8 Jan 2003 16:34:41 GMT, Doug Milliken <[email hidden]> wrote:

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> >Sebastian, > >Does the English phrase, "In your dreams", translate to French? > >In our experience, all this data is expensive to measure and what little is >available is scattered all over the place. That's part of the reason why >our library is so valuable. About the only place where a database as you >describe might exist is within a large car or tire company, and you can bet >that it's guarded carefully as a corporate asset.

That's what i discovered by myself, but i thought, maybe i'm just not looking at the right place :( Sebastien TIXIER - Game Developer Dynamics and Car Physics http://www.eden-studios.fr GPLRank Normal:-44.24 Monster:-124.44 LFS GTI Online 1:31:02 LFS GTI Offline (HLVC) 1:31:38

On Thu, 09 Jan 2003 09:17:30 +0100, Sebastien Tixier <stixier@wanadoo[NO_SPAM].fr> wrote:

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>On Wed, 8 Jan 2003 16:34:41 GMT, Doug Milliken <[email hidden]> wrote: > >> >>Sebastian, >> >>Does the English phrase, "In your dreams", translate to French? >> >>In our experience, all this data is expensive to measure and what little is >>available is scattered all over the place. That's part of the reason why >>our library is so valuable. About the only place where a database as you >>describe might exist is within a large car or tire company, and you can bet >>that it's guarded carefully as a corporate asset. > >That's what i discovered by myself, but i thought, maybe i'm just not >looking at the right place :(

It's hard indeed. Very rarely I've seen some PAcejka numbers cross the Racer forum for some tires. What helps best I've found is some contacts in the automotive industry. People with knowledge & tools to actually be able to create a bunch of realistic parameters for you. :) But it's scraping things together, certainly. Ruud van Gaal Free car sim: http://www.racer.nl/ Pencil art : http://www.marketgraph.nl/gallery/