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      08-06-2014, 10:59 AM   #6
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Drives: G80 M3 / G82 M4
Join Date: Oct 2006
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Quote:
Originally Posted by MParallel View Post
It's funny how people are excited. BMW used to mount LSD's do most of their cars or it was an option.

Well it's nice to see that's back. That whole e-diff stuff is a joke of course.

Still, motor driven an such. Was nothing bad with the good old clutches (only) LSD.
All RWD, all with LSD in an ideal world! Unfortunately the modern market environment does not allow for this, it seems.

In any case, the active differential is an impressive piece of technology. I think that as described in the article, the tuning is everything- seamlessly integrating with driver inputs is key, and then predicting what the driver might want, to boot. Should we have lock up on deceleration, or only on acceleration? Should we have an extreme pre-load where a great deal of torque must be applied for lock, or should we have the differential respond to relatively little force?

These questions are ones where "driver preference" and "maximum possible traction" may actually be conflicting considerations. This is where the talent of M engineers must truly lie!
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