Self-Study Program

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367_029
5th gear i = 0.859
Gearbox subassemblies
shift elements: clutch K2 - clutch K3
The turbine shaft drives the ring gear H1 of the
primary planetary gear set and the outer plate
carrier of clutch K2.
Ring gear H1 drives the planetary gears P1, which
revolve around the stationary sun gear S1. Planet
carrier PT1 is driven in this way.
Clutch K3 connects PT1 to sun gear S2, and thus
introduces torque into the secondary planetary
gear set.
Clutch K2 connects the turbine shaft to the planet
carrier of secondary planetary gear set PT2, and
likewise introduces torque into the secondary
planetary gear set.
The long planetary gears P2, together with planet
carrier PT2 and sun gear S2, drive ring gear H2,
which is connected to the gearbox output shaft.
6th gear i = 0.686
Shift elements: clutch K2 – brake B1
Brake B1 locks in place sun gear S2.
Clutch K2 connects the turbine shaft to the planet
carrier of secondary planetary gear set PT2, and
thus introduces torque into the secondary planetary
gear set.
The long planetary gears P2 roll around the
stationary sun gear S2 and drive ring gear H2,
which is connected to the gearbox output shaft.
Clutches K1 and K3 are open.
The primary planetary gear set is not involved in
the power transmission process.