Power Flow In 5TH Gear

Component Illustration:

Principle Of Power Flow In 5th Gear:
Torque from the torque converter is increased via the propeller shaft (1) and all three planetary gearsets and transferred to the output shaft (5).

Front Planetary Gearset:
The ring gear (V4) is driven by the propeller shaft (1). The sun gear (V1) is held against the housing by the locked freewheel F1 during acceleration and via the engaged multiple-disc brake B1 during deceleration. The planet gears (V2) turn on the fixed sun gear (V1) and increase the torque from the ring gear (V4) to the planet carrier (V3). The planet carrier (V3) moves at a reduced speed in the running direction of the engine.

Rear Planetary Gearset:
The multiple-disc dutch K2 is engaged and transfers the input speed of the propeller shaft (1) to the planet carrier (H3) via the ring gear (M4). The ring gear (H4) turns at a reduced speed due to the mechanical connection with the front planet carrier (V3). The planet gears (H2) turn between the ring gear (H4) and the sun gear (H1). The sun gear (H1) moves at an increased speed in the running direction of the engine.

Center Planetary Gearset:
The ring gear (M4) turns at the input speed as a result of the engaged multiple-disc clutch K2. The multiple-disc dutch K3 transfers an increased speed to the sun gear (M1) due to the connection with the sun gear (H1). The planet gears (M2) turn between the ring gear (M4) and the sun gear (M1). The speed of the planet carrier (M3) and the output shaft connected to the planet carrier (5) lies between that of the ring gear (M4) and the sun gear (M1). This provides a step-up ratio.

Related Information: