[torsen] Re: EDL vs ELD explained.... Re: [s-cars] Exception ally lame question

Robert Pastore rpastore at animalfeeds.com
Tue Sep 10 14:50:36 EDT 2002


(Snip)
QshipQ wrote:
...Since a torsen is mechanically attached to 2 driveshafts, with applied
torque, a turn
WILL cause increase torque split UP TO the bias ratio, before it will allow
"speed" differences in the driveshafts (at that maximum bias ratio, unless
this torque shift causes a traction argument)......


Scott:

Isn't this "speed difference" more of a theoretical than an actual? Wouldn't
the reality
measured in a fraction or maybe a few degrees of shaft rotation, in essence
being the
combined lash in the drivetrain and within the torsen itself?

Also, not exactly on topic, but related, somewhere in my archive I have an
email from Mr. Hans
Kluge, famous quattro trans builder/ex-development engineer ??, where he
seems  to  attribute
the 01E gear problems to a hammering that occurs because of the
rocking-like-cycle of thrust
loading on on one face of a gear then the other as the torsen hunts through
the lash as it does
its job of allocating torque.  I think it went on to say that it was easy to
design a gear for
a thrust load in one direction or another, but very dificult to design for
the loads in both
directions that the Torsen causes.

>Bob







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