Quote:
Originally Posted by DonDP
Sorry im lost now, i thought the terms 1 way, 1.5 way and 2 way when used for describing an LSD, refered to its behaviour during load, no-load and overun not how quickly it would lock. I was also under the impression torque vectoring would provide yaw control which is a seperate function.
Shame we cant get in contact with Joerg Trommer...
http://www.pistonheads.com/doc.asp?c=104&i=25275 |
the 1 1.5 2 way is exactly as you said. 1 way only locks on acceleration, 1.5 locks at a much different rate on engine decel, and 2 way generally locks at nearly the same right either way.
How quickly it will lock is called the ramp angle. Look at the center section of the below image, nelow where the yellow is you'll see a diamond shaped hole. That it's diamond shaped means its a 1.5 or 2 way. a 1 way would be a triangle. The angle of that hole determines the ramp angle, or how quickly the diff locks up. The post in that hole is literally transferring the load, and as it pushes on those center housings they are pushed outward. This in turns clamps down on the clutches and locks them together. Steeper the angle the faster that happens.
This action in our diffs is driven by a pump instead of this ramp. The higher the when differential, the more the pump spins, the more clamping force locking the axles. FYI it's very weak and easily overpowered.
