This animation explains the principles of automatic transmissions that use a Ravigneaux planetary gear set. Contents 1) Torque converter, multi-plate clutches 2) .
This video covers the working principle of an Automatic Transmission system.
The operation of an automatic transmission is explained here with help of animation. Allison-1000 transmission model, which has 6 speed and reverse is used .
This is a very detailed explanation on how the gears of this automatic transmission converts the rotation of the input to those 6 speeds and reverse, using 3D .