Power shift transmission

摘要

A power shift transmission has an input shaft, a first output shaft coaxial to the input shaft, a planetary transmission with a planet carrier, which is connected to the input shaft, and at least three shift elements. To minimize drag from open shift elements and to optimize shift times of a connectable synchromesh transmission, the planetary transmission has at least two stepped planetary sets, which may be mounted on a common planet carrier. Each stepped planetary set meshes on input and output sides with at least one sun gear. The first output shaft is connected to an output side sun associated with one stepped planetary set by a first shift element, the first output shaft is connected to an output side sun associated with another stepped planetary set by a second shift element, and input side sun gears are blocked relative to the transmission housing by a third shift element.

主权项

1. A power shift transmission, comprising:
an input shaft; a first output shaft arranged coaxially to the input shaft; at least three shift elements; and a planetary transmission having a planet carrier, at least two stepped planetary gear sets, and at least two sun gear sets, wherein the planet carrier carries the at least two stepped planetary gear sets and is coupled to the input shaft; wherein a first of the at least two stepped planetary gear sets includes a first input side planet gear and a first output side planet gear, and a second of the at least two stepped planetary gear sets includes a second input side planet gear and a second output side planet gear, and wherein a first of the at least two sun gear sets includes a first input side sun gear and a first output side sun gear, and a second of the at least two sun gear sets includes a second input side sun gear and a second output side sun gear, whereby the first and second input side planet gears mesh with the associated first and second input side sun gears, and the first and second output side planet gears mesh with the associated first and second output side sun gears; and wherein in a first operating condition the first output shaft is connected to the first output side sun gear by a first of the at least three shift elements, wherein in a second operating condition the first output shaft is connected to the second output side sun gear by a second of the at least three shift elements, and in a third operating condition the first and second input side sun gears are blocked by a third of the at least three shift elements.