Welcome back to the second installment of our Automatic Transmission series, where we unravel the complexities of epicyclic gear trains and delve into the fascinating world of torque converters.

Discover the intricacies of various epicyclic gear trains, including the unique Ravigneaux type double epicyclic gear train, capable of providing up to six gear ratios. Uncover the mechanics behind obtaining lower and higher gears, the nuances of direct drive, and the reverse gear's clever reversal of rotation direction.

Learn how the one-way clutch plays a crucial role in achieving an automatic first gear without engine braking, enhancing the overall driving experience. Explore the immobilization mechanism in the Park position, where the park wheel on the output shaft is mechanically locked for safety.

Delve into the heart of the torque converter, consisting of the impeller, turbine, and stator. Understand how, during startup, the converter multiplies the torque from the engine, and at high engine speeds, efficiently transmits torque to the gear mechanism. Gain insights into the stator's one-way clutch, featuring a hub, inclined sprags, and springs.

Unlock the secrets of lock-up, a process that transforms the hydraulic coupling into a mechanical connection using a lock-up clutch plate, optimizing efficiency and performance.

Join us on this educational journey as we demystify epicyclic gear trains and torque converters, empowering you with a deeper understanding of the technology that makes automatic transmissions tick. Don't miss out on this essential guide—watch now! #AutomaticTransmission #GearTrainsExplained #TorqueConverterTech #CarMechanics #AutomotiveEngineering

00:00 Intro CarCraft
00:19 Epicyclic gear trains and mechanical components
04:56 Torque converter
08:54 CarCraft end screen