| 摘要 |
PROBLEM TO BE SOLVED: To provide a planetary gear train of a vehicular automatic transmission minimizing the number of component and an entire length to improve mountability, and thereby capable of improving power transmission performance and fuel economy.SOLUTION: A planetary gear train of a vehicular automatic transmission includes: a first shaft to which power of an engine is transmitted; a second shaft; a first planetary gear set having a first rotational element, a second rotational element and a third rotational element; a second planetary gear set having a fourth rotational element, a fifth rotational element and a sixth rotational element; four transfer gears forming an external gear; a clutch selectively connecting the first shaft and the rotational element of the first and second planetary gear sets, and a friction element comprising a brake selectively connecting the rotational element of the first and second planetary gear sets to a transmission housing.SELECTED DRAWING: Figure 1 |
