Abstract: A planetary gear train of an automatic transmission includes an input shaft, an output shaft, and first to fourth planetary gear sets respectively including first to third, fourth to sixth, seventh to ninth, and tenth to twelfth rotating elements, wherein the input shaft and the second rotating element, the output shaft and the eleventh rotating element, the first and sixth rotating elements, the first and eighth rotating elements, the seventh and eleventh rotating elements, and the ninth and tenth rotating elements are fixedly interconnected, and the output shaft is selectively connected with the third rotating element, and achieves ten forward speeds and one reverse speed by selectively operating three control elements among seven control elements.

Abstract: A planetary gear train may include an input shaft, an output shaft, four planetary gear sets having first to twelfth rotation elements, a first shaft connected with the first rotation element and selectively connectable with a transmission housing, a second shaft interconnecting the second and fourth rotation elements, and connected with the input shaft, a third shaft interconnecting the third rotation element and the tenth rotation element, a fourth shaft connected with the fifth rotation element, a fifth shaft interconnecting the sixth and seventh rotation elements, and selectively connectable with the first shaft, a sixth shaft connected with the eighth rotation element and selectively connectable with the respective third and fourth shaft and selectively connectable with the transmission housing, a seventh shaft interconnecting the ninth and twelfth rotation elements, and selectively connectable with the transmission housing, and an eighth shaft connected with the eleventh rotation element and the output

Abstract: A planetary gear train of an automatic transmission for vehicles may include an input shaft receiving torque of an engine, an output shaft outputting changed torque of the engine, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first shaft, a second rotation shaft, a third rotation shaft, a fourth rotation shaft selectively connected to the input shaft, a fifth rotation shaft selectively connected to the input shaft or selectively connected to the transmission housing, a sixth rotation shaft directly connected to the output shaft to be continuously operated as an output element, a seventh rotation shaft selectively connected to the transmission housing, an eighth rotation shaft selectively connected to the third rotation shaft, a ninth rotation shaft directly connected to the input shaft to be continuously operated as an input element, and six friction elements.

Abstract: An automatic transmission for a vehicle may include an input shaft; an output shaft; first to fourth planetary gear sets and six control elements which are disposed between the rotating elements, and disposed at portions where the rotating elements are selectively connected to a transmission housing, in which the input shaft is directly connected with the second rotating element, the output shaft is directly connected with the eleventh rotating element, the first rotating element is directly connected with the seventh rotating element, the sixth rotating element is directly connected with the transmission housing, the fourth rotating element is directly connected with the ninth rotating element, the eighth rotating element is directly connected with the tenth rotating element, and at least ten forward speeds and one reverse speed are implemented by operations of three control elements among the six control elements.

Abstract: A planetary gear train of an automatic transmission includes an input shaft; an output shaft; a first planetary gear set having first to third rotating elements; a second planetary gear set having fourth to sixth rotating elements; a third planetary gear set having seventh to ninth rotating elements; a fourth planetary gear set having tenth to twelfth rotating elements; and seven control elements, wherein the input shaft is continuously connected with the second rotating element, the output shaft is continuously connected with the eleventh rotating element, the second rotating element is continuously connected with the fourth rotating element, the third rotating element is continuously connected with the tenth rotating element, the sixth rotating element is continuously connected with the seventh rotating element, the ninth rotating element is continuously connected with the twelfth rotating element, the third rotating element and the eighth rotating element are selectively connected.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting changed torque, a first planetary gear set including first, second, and third rotation elements, a second planetary gear set including fourth, fifth, and sixth rotation elements, a third planetary gear set including seventh, eighth, and ninth rotation elements, a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements, and seven friction elements disposed between at least one rotation element among the twelve rotation elements and another rotation element or the input shaft, or between at least one rotation element among the twelve rotation elements and a transmission housing.

Abstract: A planetary gear train of an automatic transmission provides a planetary gear train that includes an input shaft receiving torque of an engine. An output shaft outputs changed torque. Four planetary gear sets include twelve rotation elements. Six friction elements are disposed between rotation elements or between a rotation element and a transmission housing. The input shaft is connected to the second rotation element and selectively connected to the twelfth rotation element. The output shaft is connected to the eleventh rotation element. The first rotation element is connected to the fourth rotation element, the fifth rotation element is connected to the eighth rotation element, the sixth rotation element is connected to the tenth rotation element, the ninth rotation element is connected to the eleventh rotation element, and three friction elements among the six friction elements are operated at each speed stage.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting changed torque of the engine, a first planetary gear set including first, second, and third rotation elements, a second planetary gear set including fourth, fifth, and sixth rotation elements, a third planetary gear set including seventh, eighth, and ninth rotation elements, a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements, and seven friction elements disposed between at least one rotation element among the twelve rotation elements and another rotation element or the input shaft, or between at least one rotation element among the twelve rotation elements and a transmission housing.

Abstract: A power transmitting apparatus may include a first input shaft to selectively receive torque of an engine, a second input shaft to selectively receive the torque of the engine and having at least one input gear, a third input shaft selectively connected to the second input shaft and having at least one input gear, a motor/generator operated as a motor or a generator, a planetary gear set including a first rotation element directly connected to the motor/generator, a second rotation element directly connected to the third input shaft, and a third rotation element directly connected to the first input shaft, a first speed output unit adapted to convert torque input from the second input shaft or the third input shaft and output the converted torque, and a second speed output unit to convert torque input from the second input shaft or the third input shaft and output the converted torque.

Abstract: 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.

Abstract: A planetary gear train may include an input shaft, an output shaft, four planetary gear sets having first to twelfth rotation elements, a first shaft connected with the first rotation element and selectively connectable with a transmission housing, a second shaft interconnecting the second and fourth rotation elements, and connected with the input shaft, a third shaft interconnecting the third rotation element and the tenth rotation element, a fourth shaft connected with the fifth rotation element, a fifth shaft interconnecting the sixth and seventh rotation elements, and selectively connectable with the first shaft, a sixth shaft connected with the eighth rotation element and selectively connectable with the respective third and fourth shaft and selectively connectable with the transmission housing, a seventh shaft interconnecting the ninth and twelfth rotation elements, and selectively connectable with the transmission housing, and an eighth shaft connected with the eleventh rotation element and the output

Abstract: A power transmission apparatus for a vehicle may include a first input shaft adapted to selectively receive torque of an engine, a second input shaft disposed without rotational interference with the first input shaft, a third input shaft disposed in a row with the second input shaft and without rotational interference with the first input shaft, a planetary gear set including a first rotation element, a second rotation element directly connected to the third input shaft, and a third rotation element directly connected to the first input shaft, a motor/generator directly connected to the first rotation element, a first speed output unit adapted to convert torque input from the second input shaft or the third input shaft and output the converted torque, and a second speed output unit adapted to convert torque input from the second input shaft or the third input shaft and output the converted torque.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving power from an engine, an output shaft outputting power changed in speed, 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 disposed at positions where the rotating elements are selectively connected to a transmission housing.

Abstract: A power transmission apparatus may include a first input shaft adapted to selectively receive torque of an engine, a second input shaft disposed without rotational interference with the first input shaft, a third input shaft disposed in a row with the second input shaft and without rotational interference with the first input shaft, a planetary gear set including a first rotation element, a second rotation element directly connected to the third input shaft, and a third rotation element directly connected to the first input shaft, a motor/generator directly connected to the first rotation element and configured to achieve a reverse speed by inverse rotation thereof, and a first speed output unit and a second speed output unit each adapted to convert torque input from the second input shaft or the third input shaft and output the converted torque.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include: an input shaft which receives power from an engine; an output shaft which outputs power changed in speed; a first planetary gear set which has first, second, and third rotating elements; a second planetary gear set which has fourth, fifth, and sixth rotating elements; a third planetary gear set which has seventh, eighth, and ninth rotating elements; a fourth planetary gear set which has tenth, eleventh, and twelfth rotating elements; and six control elements wherein one of the six control elements is disposed at a portion where one of the first to twelfth rotating elements is selectively connected to another of the first to twelfth rotating elements, or at a portion where the one of the first to twelfth rotating elements is selectively connected to the transmission housing.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving power from an engine, an output shaft outputting power changed in speed, 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 disposed at positions where the rotating elements are selectively connected to a transmission housing.

Abstract: A planetary gear train for an automatic transmission may include an input shaft, an output shaft, first to fourth planetary gear sets and seven friction elements disposed to selectively connect the rotation elements with the rotation element and selectively connect the rotation elements with a transmission housing, and wherein the input shaft is continuously connected to the second rotation element, the output shaft is continuously connected to the eleventh rotation element, the first rotation element is continuously connected to the sixth rotation element, the first rotation element is continuously connected to the eighth rotation element, the first rotation element is continuously connected to the tenth rotation element, the fifth rotation element is continuously connected to the ninth rotation element, the output shaft is selectively connected to the third rotation element, and wherein three friction elements are operated for achieving ten forward speed stages and at least one reverse speed stage.

Abstract: 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 rotational elements, a second planetary gear set including fourth, fifth, and sixth rotational elements, a third planetary gear set including seventh, eighth, and ninth rotational elements, a fourth planetary gear set including tenth, eleventh, and twelfth rotational elements, and seven control elements disposed between the rotational elements and at positions at which the rotational elements and a transmission housing are selectively connected.

Abstract: A planetary gear train of an automatic transmission may include input shaft, output shaft, first planetary gear set including first to third rotation elements, second planetary gear set including fourth to sixth rotation elements, third planetary gear set including seventh to ninth rotation elements, fourth planetary gear set including tenth to twelfth rotation elements, and six control elements disposed at portions selectively connecting between the rotation elements and between the rotation elements and a transmission housing, wherein the input shaft is directly connected to the fourth rotation element and the eighth rotation element, the output shaft is directly connected to the eleventh rotation element, the tenth rotation element is directly connected to the third rotation element while being selectively connected to the seventh rotation element, the second rotation element is selectively connected to the sixth rotation element, and the first rotation element is directly connected to the transmission hou

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving power from an engine, an output shaft outputting power changed in speed, a first planetary gear set which has first, second, and third rotating elements, a second planetary gear set which has fourth, fifth, and sixth rotating elements, a third planetary gear set which has seventh, eighth, and ninth rotating elements, a fourth planetary gear set which has tenth, eleventh, and twelfth rotating elements, and six control elements disposed between the rotating elements, and disposed at positions where the rotating elements are selectively connected to a transmission housing.