Hypnotized on the web

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <49f10e58.3540a30d@aol.com> QSHIPQ writes:
> Dave, several of us have tried to get you to understand, not
> only the Torsen operation, but the limits of that operation as well.  It's
> obvious you don't get it.

Neither do I.

> Now, you come back to the "I can't repeat it" argument.  The full Monty of a
> Catch 22.  You have taken us for a ride, denied all logical approaches, lashed
> at a few that believe and understand, and fully admit, through your posts,
> that you neither understand the concept, nor accept any posts from those that
> do, thru physics OR conceptualizing OR BTDT.  I might ask, when do we look in
> the mirror?

You haven't yet posted any physics.  Just some vague theorising taken
from scruffy and blurred cut-away drawings - all of which theorising
completely ignores real physics like inertia, friction, mass, etc.

> A torsen hunts, it's designed to, ...

No, there is no randomisation or search generation mechanism in a Torsen.
It's a purely reactive device.

> It will hunt until it finds
> traction, even if it is constant, on a lake of ice, that would be a long time
> wouldn't it?  The torsen doesn't know it's on that lake.  The locker doesn't
> care.

No.  If c/f is truly equal ('constant' is irrelevant) for all wheels,
the Torsen will be in a steady state no matter what the input torque
variation.

> Bottom Line:  You think the Torsen is doing ALL the correct things for
> traction.  My whole argument is that switch is too dumb to do ALL the correct
> things for real world traction.

It's _NOT_ a switch.  A switch has discrete states.  A Torsen can be in
any one of an infinite number of states between its limits, and can
move between states at a variety of speeds.  It _cannot_ move between
states in zero time - inertia prevents this.  During the movement, it
passes through all of the intermediate states.  It does not and cannot
"switch".

> I posted originally to help others understand what is happening and why.  You
> have taken the most basic of those elements and totally fogged them.  Not sure
> why, you have proven, right here, by your own posts, you DON'T understand a
> Torsen Center Differential operation or the inherent limitations of that
> operation.

Ditto.

YOU are the one who doesn't know what you're talking about.  There are three
Torsen ur-quattro owners on this list, all of whom have tried to recreate
this problem.  There are three Torsen ur-quattro owners in Area K who've
tried it, and one in Area E.  That's _seven_.

It doesn't happen.  Null phenomenon.  No fault found.  Torsens went into
thousands of cars starting in 1987.  They're still being put into cars.
The driver's manuals don't mention "spider bites".  The high-performance
driving courses that Audi run don't mention "spider bites".  Why?

You're beginning to remind me of "Sixty Minutes".

--
 Phil Payne
 Phone: 0385 302803   Fax: 01536 723021
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