RE: understeer/oversteer definition

["Scruggs, Gross" <GScruggs@monterey.nps.navy.mil>]

Frank, you are correct.  My explanations are for purposes of definition and
concept clarity of the most basic relationship between these components.
Yes, when examining the real world the interactions become more complex...
but we must start somewhere.  I have related only the text-book
relationships but I see you are itching to build a high fidelity model of
the real world.  I hope you have a lot of time and computing power because,
as you correctly point out, the tiniest change can influence the result.  Go
for it!

Regards, Gross Scruggs

	-----Original Message-----
	From:	Frank J. Bauer [SMTP:frankbauer@thevine.net]
	Sent:	Monday, March 15, 1999 12:36 PM
	To:	Scruggs, Gross; 'quattro-digest@coimbra.ans.net'
	Subject:	RE: understeer/oversteer definition

	At 11:35 AM 3/15/99 -0800, Scruggs, Gross wrote:
	>	Three... the normal force has no impact on coefficient of
friction.
	>They are separate and can not effect each other.
	>...(snip)
	>	Amplifications?  Corrections?  

	i would posit that you are correct in a static and linear system and
this
	is neither. the area and shape of the surface that interacts with
the tire
	can change with normal forces.  in addition, there are
temperature-related
	nonlinearities on cf and there is the difference between static and
dynamic
	friction to consider and how these are affected by forces on the
tire.

	frank