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      05-27-2015, 02:33 PM   #7
PrematureApex
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Quote:
Originally Posted by NTTY View Post
That's one of the functions of the DSC. It will slow down one wheel so power is transferred to the opposite wheel.
No, it's not. It slows down the inside wheel to induce yaw.

Again, it's an open diff. Torque output at each side of an open diff will ALWAYS be 50/50. Always, by the very definition of an open diff. Some of that power is being eaten by the brake, but there is no "transfer" of anything. An open diff has no mechanism to do anything but 50/50 at all time.

I guess you can say that the faster spinning wheel is putting more power to the ground (by its increased speed vs. the other side), but nothing is transferred via the diff.



When a car with an open diff is stuck in the snow, and one wheel is spinning while the other one is still...

People incorrectly think it's because all the torque is being "dumped" on the wheel with no traction. But that is incorrect. Even in that instance, both wheels are receiving the same torque. What is actually happening is that the torque output is limited by how much torque it takes to spin the wheel with the least traction. the other wheel receives the exact same amount of torque. However, because it has more traction, the torque it does receive is not enough to rotate it and move the car. So it sits there, still.

That's how an e-diff works. Apply the brake on the slipping wheel, upping the torque that side of the diff is "taking", and correspondingly increasing the torque provided to the other side (again, always 50/50). Once it's high enough to begin to rotate the wheel with the traction, away you go.

Last edited by PrematureApex; 05-27-2015 at 02:43 PM..
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