Singing Carolls'

[QSHIPQ <QSHIPQ@aol.com>]

Dave quotes:
>"i feel that the basic problem in understanding the subject lies not in
trying
>to figure out what understeer is or what oversteer is - that's pretty simple
-
>but in realising that the same vehicle, with nothing physically changed in
it's
>setup, can - and will- understeer in some corners and oversteer in others. 
>further, in the same corner - on the same lap - it is not only possible for
the
>vehicle to understeer in in one portion of the corner and oversteer in
another
>but, if the car is going to be really fast, it is mandatory for it to do so. 
>most of the printed explanations of the twin phenoma of vehicle dynamics 
>ignore this fact and concentrate on steady state conditions which, while
easier
>to explore, are of limited interest to the racer.
That's chassis dynamics while turning, hence the term u-u-o, or o-o-o, or u-o-
u.  Great work Dave, you now know what we mean.  The problem is, that the
torsen exibits the behavior based on driveshaft inputs from the corner.  Which
means that one time you can get u-o-o, and on the SAME line, one lap later
(with only tire heat as the variable, btdt, and using YOUR 'grip' argument)
get u-o-u.  Look back at the variables that affect torsen output.  That is not
Carrolls reference dave.  Good book though.  Be careful using it for awd, as
with the torsen paper, it wasn't written for it.  And you really didn't do
well in the latter torsen translation, with all due respect to your knowlege
of turns.

Scott