Quote:
Originally Posted by TiAgX5
I guess Sir Issac Newton was wrong.  I guess the torque to that gear must take a bus to Hoboken, NJ or something like that.
The torque ratio is fixed ONLY as long as both front and rear gears are turning at the same rpm. When one gear is slowed or stopped the torque supplied to that gear transfers to the other gear in this universe. |
Where did I say that the TQ goes anywhere outside of the planetary gear? You're a little anxious.
Read again. I said it transfers and it does it at a fixed ratio. The gears turn at a 1:1 ratio- that is one spins at the same speed as the other. One has more teeth- the rear- and spins slower but with more teeth resulting in a higher ratio- all the time- than the other (the front)- that is smaller but with fewer teeth driving output. (I am prone to get the speeds/teeth mixed up, but the concept of a fixed ratio is the same despite my spatial deficiency) The gears spin at the same speed, but are different sizes resulting in different output front vs rear.
There is no clutch to vary the output of power within the transfer case on a non-XDrive car. Both spin at the same input/drive speed (1:1), but the output is different bc they're different sized gears. See below for an illustration.