Re: Simple car dynamics

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Hansong Zhang (hzhang++at++torque.engr.sgi.com)
Tue, 22 Jun 1999 22:12:02 -0700 (PDT)

The best book on vehicle dynamics is Milliken's "Race Car Vehicle
Dynamics"; it's like Forley & van Dam for graphics. You can find
detailed math models of all aspects of a race car there. On the web,
there's the "Physics of Racing" series of articles, authored by Brian
Beckman, at http://members.home.net/rck/phor. These're much less
mathematical. Still less mathematical but very comprehensive is Fred
Puhn's "How to Make Your Car Handle"; it doesn't help simulation directly
but does help people understand the problems.

All these are overkill for your "toy" driving simulator, but still
they're fun to check out.

Hansong

> At 10:09 AM 6/22/99 -0500, William Sherman -Visualization wrote:
> >Hello,
> >
> >Does anyone on the list have a simple vehicle dynamics alogorithm
> >for passenger cars that they are willing & able to share?
> >
> >I'm working on a "toy" driving simulator application for a VR
> >display, and just need to provide a car that is more or less
> >accurate. Inputs I'm prepared to feed to the algorithm include
> >a steering offset, acceleration, brake, ground friction coefficient,
> >and ground slope (is there anything else that is absolutely
> >necessary?).
> >
> >I'll take existing code, psuedocode, a collection of algorithms,
> >whatever is available.
>
> The US hub of driving dynamics is, not too surprisingly, the
> University of Michigan. Here's a link to some work by the
> Automotive Research Simulator but that's only the tip of
> the ice berg.
>
> http://www.umtri.umich.edu/erd/software/arcsim.html
>
> I strongly recommend that you go to this site and look through
> most of the links. You will find excellent work both online and
> by the researchers and their past publications.
>
> I first discovered them in 1989 when I was solving for what was
> to me a major obstacle: the behavior of a truck and semi-trailer
> when you back up the truck part with the wheels turned. It may
> seem simple (and it may be simple if you know more math than
> me ;-) but I found it difficult to work out as a finite difference
> solution.
>
> Michael "Truck-Driver" Jones
>
> ----------
> Michael T. Jones - <mailto:mtj++at++intrinsic.com>mtj++at++intrinsic.com -
> <http://www.intrinsic.com/>Intrinsic Graphics Inc. - (650) 210-9933x13
> A frog in a well says "The sky is as big as the mouth of my well"
>

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