Transmission unit, particularly motor vehicle transmission unit, comprises four planetary gears arranged consecutively along main rotation axis, where six coupling units are formed

摘要

The transmission unit comprises four planetary gears (P1,P2,P3,P4) arranged consecutively along a main rotation axis (10). Six coupling units (S1-S6) are formed, where nine forward gears are switched. A drive unit (11) is designed, which is connected with three coupling elements (S12,S22,S32) in a rotational manner.