VEHICLE MULTISTAGE TRANSMISSION

摘要

A vehicle multistage transmission capable of realizing at least forward ten shift stages and a reverse first shift stage may include an input shaft and an output shaft, a first planetary gear unit, a second planetary gear unit, a third planetary gear unit, and a fourth planetary gear unit provided to transfer rotational force between the input shaft and the output shaft, each having three rotation elements, and at least six shift elements connected to at least one of the three rotation elements of the first, second, third, and fourth planetary gear units

主权项

1. A vehicle multistage transmission comprising:
an input shaft and an output shaft; a first planetary gear unit, a second planetary gear unit, a third planetary gear unit, and a fourth planetary gear unit provided to transfer rotational force between the input shaft and the output shaft, each having three rotation elements; and at least six shift elements connected to at least one of the three rotation elements of the first, second, third, and fourth planetary gear units, wherein the first planetary gear unit is configured such that a first rotation element of the first planetary gear unit is selectively connected to a second rotation element of the first planetary gear unit while being continuously connected to a third rotation element of the second planetary gear unit and a first rotation element of the third planetary gear unit, the second rotation element of the first planetary gear unit is fixedly installed by one of the shift elements, and a third rotation element of the first planetary gear unit is continuously connected to a second rotation element of the second planetary gear unit and a third rotation element of the fourth planetary gear unit, wherein a first rotation element of the second planetary gear unit is selectively connected to second and third rotation elements of the third planetary gear unit, wherein the second rotation element of the third planetary gear unit is continuously connected to the input shaft, and the third rotation element of the third planetary gear unit is selectively connected to a second rotation element of the fourth planetary gear unit, and wherein a first rotation element of the fourth planetary gear unit is fixedly installed by another one of the shift elements, and the second rotation element of the fourth planetary gear unit is continuously connected to the output shaft.