Re: specimen mathematical car model

Hi Martin

There might be two things which might help you:
- https://youtu.be/H75kZ37j9o4 (Car Modeling Tutorial - The Physical Car 
Model - Part 5 of 5)
- The description in the TORCS documentation discusses some topics 
related the integration, you can download it here (or generate it from 
the TORCS sources with Doxygen under Linux, see README): 
https://sourceforge.net/projects/torcs/files/api-docs/1.3.7

These pieces do not yet contain the tire temperature and wear modeling, 
an the latest extensions to the suspension model (third element).

Kind regards
Bernhard

On 15.02.21 22:53, Martin Neuenhofen via Torcs-users wrote:
> Hello,
> 
> Thanks to all the contributors.
> I have a question on the models. Maybe you can help.
> 
> This is what I search:
> - The mathematical statement of a car model.
> - I understand that it is an ODE x'=f(x,t) which is solved via explicit 
> Euler with dt=0.005 .
> - However, I don't find a paper, documentation, web page, comprehensible 
> code piece, etc that names f.
> 
> I actually just need these parameters: geometry, CoG, mass, inertia, 
> wishbone joints, spring-damper coeffs; and the mathematical equations of 
> tire force and torque.
> I understand there are probably hundreds of cars. Having one typical 
> specimen would be nice.
> I can work with DAE as well as with ODE.
> 
> This is where I searched unsuccessfully (not meaning to brag it should 
> have been somewhere but rather that I tried and am glad for any help):
> - FAQ
> - src/interfaces/raceman.h (pointed in the FAQ)
> - various other header and source files on github
> - linked papers and their references
> - videos
> 
> Sorry if I missed it in an obvious spot.
> Thanks for any help.
> 
> Cheers,
> Martin
> 
> 
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