PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES

摘要

A planetary gear train of an automatic transmission for vehicles may include an input shaft receiving power of an engine, an output shaft outputting shifted power of the engine, a first planetary gear set including first, second, and third rotating elements, a second planetary gear set including fourth, fifth, and sixth rotating elements, a third planetary gear set including seventh, eighth, and ninth rotating elements, a fourth planetary gear set including tenth, eleventh, and twelfth rotating elements, and seven control elements disposed between the rotating elements and at positions selectively connecting the rotating elements and a transmission housing.

主权项

1. A planetary gear train of an automatic transmission for vehicles, comprising:
an input shaft receiving power of an engine; an output shaft outputting shifted power of the engine; a first planetary gear set including first, second, and third rotating elements; a second planetary gear set including fourth, fifth, and sixth rotating elements; a third planetary gear set including seventh, eighth, and ninth rotating elements; a fourth planetary gear set including tenth, eleventh, and twelfth rotating elements; and seven control elements disposed between the rotating elements and at positions selectively connecting the rotating elements and a transmission housing, wherein the input shaft is selectively connected to the twelfth rotating element simultaneously with being continuously connected to the fourth rotating element, the output shaft is continuously connected to the eleventh rotating element, the eleventh rotating element is continuously connected to the ninth rotating element, the eighth rotating element is continuously connected to the twelfth rotating element, the seventh rotating element is continuously connected to the third rotating element, the second rotating element is continuously connected to the sixth rotating element, and at least ten advance speeds and at least one reverse speed are implemented while three of the seven control elements are operated.