| 摘要 |
PROBLEM TO BE SOLVED: To provide a planetary gear train of a vehicular automatic transmission improving power transmission performance to improve fuel economy.SOLUTION: A planetary gear train of a vehicular automatic transmission in this embodiment includes: an input shaft to which power of an engine is transmitted; a first planetary gear set having a first sun gear, a first planetary carrier and a first ring gear; a second planetary gear set having a second sun gear, a second planetary carrier and a second ring gear; a third planetary gear set having a third sun gear, a third planetary carrier and a third ring gear; and a fourth planetary gear set having a fourth sun gear, a fourth planetary carrier and a fourth ring gear.SELECTED DRAWING: Figure 1 |
