Patent ID: 9702439
Date: 2017-07-11
CPC Classifications: F16H

Claim:
1. A planetary gear set of an automatic transmission for a vehicle, comprising: an input shaft for receiving an engine torque; an output shaft for outputting a shifted torque; a first planetary gear set having first, second, and third rotational elements; a second planetary gear set having fourth, fifth, and sixth rotational elements; a third planetary gear set having seventh, eighth, and ninth rotational elements; a fourth planetary gear set having tenth, eleventh, and twelfth rotational elements; and six control elements, each for selectively interconnecting the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth rotational elements, wherein the input shaft is continuously connected with the third rotational element, the output shaft is continuously connected with the eleventh rotational element, the first rotational element is continuously connected with the fourth rotational element, the second rotational element is continuously connected with the eighth rotational element and twelfth rotational element, the fifth rotational element is continuously connected with the tenth rotational element, and the sixth rotational element is continuously connected with the seventh rotational element.