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Re: Re: Hypnotized on the web
"Switch" terminology
I have to agree with Robert Houk on this. The terminology "switch" is totally
inappropriate, and is misleading in trying to understand operation of the
torsen. The torsen is an analog device, has an infinitely variable output and
has a finite response time/slew rate. Personally, I think treating the torsen as
an analog device provides a better model for trying to prove by analysis spider
bite.
Ditto for "torsen is a reactive device". There are no logical or sequential
states in the torsen. It does not think; it does not make decisions. It reacts
almost purely to traction induced torque on both of its output shafts. I would
guess most people who have read the Gleason white paper would agree with this.
Even though the Type 44 and UrQ drivetrains could be similar, I gotta think the
differences in polar moment, inertia, and mass play a big role in why less or
none of the UrQs seem to not exhibit bite and some type 44s exhibit the bite. I
know from comparing my extremely short and lightweight Scirocco to my long and
heavy 5K wagon, there is a huge difference in turn dynamics. I can toss the
Scirocco into a turn with impunity and it just "loves" to recover. When I lose
it with the wagon, it takes a "long-long-long" time for it to come back, if it
does. I'm not sure the type 44 was meant for such turn tossing. But relative to
other cars of similar characteristics, I believe the type 44 is a very good
handling car.
This torsen thread is making me feel better about my non-quattro, non-turbo
under-powered wagon all the time. Not!
If Audi-Dudi can get in contact with the Gleason engineer, perhaps the debate
can take a forward step.
Chauncey Kuo