Abstract: A vehicular multi-stage transmission is provided. In particular, the transmission includes an input shaft and an output shaft. A first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, and a fifth planetary gear set (PG5) are provided and each is disposed between the input shaft and the output shaft to transfer a rotational force and has three rotation elements. Additionally, at least six gear-shifting elements are connected to the rotation elements of the planetary gear sets.

Abstract: Disclosed herein is a multi-stage transmission for a vehicle. The multi-stage transmission includes an input shaft IN and an output shaft OUT; a first planetary gear set PG1, a second planetary gear set PG2, a third planetary gear set PG3, and a fourth planetary gear set PG4 installed between the input shaft IN and the output shaft OUT so as to transfer a torque and each including three rotary elements; and six shifting elements connected to the rotary elements of the first to fourth planetary gear sets.

Abstract: A planetary gear train may include input and output shafts a compound planetary gear set having first, second, third and fourth rotation elements by combination of first and second planetary gear sets; a third planetary gear set having fifth, sixth, and seventh rotation elements; a fourth planetary gear set having eighth, ninth, and tenth rotation elements, the first rotation element selectively connectable to the fifth rotation element and the tenth rotation element, respectively, the second rotation element and the tenth rotation element selectively connectable to the transmission housing, the third rotation element fixedly connected to the sixth rotation element, and fixedly connected to the input shaft, the fourth rotation element selectively connectable to the seventh shaft, the fifth rotation element fixedly connected to the eighth shaft, the seventh rotation element selectively connectable to the ninth shaft, the ninth rotation element fixedly connected to the output shaft.

Abstract: A planetary gear train of an automatic transmission is provided to improve power delivery and fuel efficiency by applying six engagement elements to four planetary gear sets to achieve multiple speeds. The planetary gear train includes: input and output shafts; first to fourth planetary gear sets respectively including first to third rotation elements, fourth to sixth rotation elements, seventh to ninth rotation elements, tenth to twelfth rotation elements; and first to eighth shafts. In particular, the first shaft is fixedly connected to the second and sixth rotation elements, and the input shaft, the fourth shaft is fixedly connected to the fourth and seventh rotation elements, and the seventh and eighth shafts selectively and respectively connect a transmission housing to corresponding rotation elements of the first and third planetary gear sets.

Abstract: The present disclosure provides a planetary gear train of an automatic transmission for a vehicle including an input shaft, an output shaft, four planetary gear sets respectively having three rotational elements, and six control elements for selectively interconnecting the rotational elements and a transmission housing.

Abstract: Disclosed herein is a multi-stage transmission for a vehicle. The multi-stage transmission includes an input shaft IN and an output shaft OUT; a first planetary gear set PG1, a second planetary gear set PG2, a third planetary gear set PG3, and a fourth planetary gear set PG4 installed between the input shaft IN and the output shaft OUT so as to transfer a torque and each including three rotary elements; and six shifting elements connected to the rotary elements of the first to fourth planetary gear sets.

Abstract: A multi-stage transmission for vehicles includes an input shaft for receiving power from an engine; an output shaft for outputting the power; and a first, a second, a third, and a fourth planetary gear device. Each of the planetary gear devices has three rotary elements. The transmission further includes a first rotary shaft connected to the input shaft; a second rotary shaft; a third rotary shaft; a fourth rotary shaft; a fifth rotary shaft; a sixth rotary shaft; a seventh rotary shaft connected to a first rotary element of the third planetary gear device; and an eighth rotary shaft connected to a third rotary element of the fourth planetary gear device and to the output shaft.

Abstract: A multi-stage transmission for vehicles includes an input shaft for receiving power from an engine, an output shaft for outputting the power, a first planetary gear device, a second planetary gear device, a third planetary gear device, and a fourth planetary gear device. Each of the planetary gear devices has three rotary elements, a first rotary shaft connected to the input shaft, a second rotary shaft, a third rotary shaft, a fourth rotary shaft, a fifth rotary shaft, a sixth rotary shaft, a seventh rotary shaft, and an eighth rotary shaft connected to the third rotary element of the third planetary gear device, to the second rotary element of the fourth planetary gear device, and to the output shaft.

Abstract: A planetary gear train includes an input shaft and an output shaft. A first planetary gear set has first, second, and third rotational elements. A second planetary gear set has fourth, fifth, and sixth rotational elements. A third planetary gear set has seventh, eighth, and ninth rotational elements. A fourth planetary gear set has tenth, eleventh, and twelfth rotational elements. A first shaft is fixedly connected with the twelfth rotational element and fixedly connected with the input shaft. A second shaft is fixedly connected with the fifth rotational element and the eighth rotational element, and fixedly connected with the output shaft. A third shaft is fixedly connected with the fourth rotational element. A fourth shaft is fixedly connected with the seventh rotational element. A fifth shaft is fixedly connected with the sixth rotational element and the ninth rotational element.

Abstract: A planetary gear train of an automatic transmission may include: an input shaft receiving torque of an engine; an output shaft transmitting torque to an output gear; a first planetary gear set including first, second, and third rotation elements; a compound planetary gear set including fourth, fifth, sixth, and seventh rotation elements; a fourth planetary gear set including eighth, ninth, and tenth rotation elements; a first shaft fixedly connected to the ninth rotation element and the input shaft; a second shaft fixedly connected to the second and sixth rotation elements and fixedly connected to the output shaft; a third shaft fixedly connected to the first and tenth rotation elements; a fourth shaft fixedly connected to the fourth rotation element; a fifth shaft fixedly connected to the fifth rotation element; a sixth shaft fixedly connected to the seventh rotation element; and a plurality of shafts selectively connected to a transmission housing.

Abstract: A multi-stage transmission includes an input shaft, an output shaft, a first planetary gear set, a second planetary gear set, a third planetary gear set, and a fourth planetary gear set. Each planetary gear set includes three rotating elements. Six shifting elements are connected to the rotating elements of the first, the second, the third and the fourth planetary gear sets. A first rotating element of the first planetary gear set is fixedly connected to a first rotating element of the second planetary gear set and a second rotating element of the third planetary gear set and is selectively connected to the input shaft. A second rotating element thereof is fixedly connected to a third rotating element of the third planetary gear set and a third rotating element of the fourth planetary gear set. A third rotating element thereof is selectively connected to the input shaft.

Abstract: A vehicle transmission includes: four planetary gear sets and six friction elements which may be combined such that the rotation speed and direction are changed by selectively interrupting operations using the rotation elements of the planetary gear sets and the plurality of friction elements, wherein with such a shifting action, the vehicle may be driven by implementing gear ratios of at least ten forward stages and at least one reverse stage.

Abstract: A planetary gear train includes input and output shafts, first to fourth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, and tenth to twelfth elements. The planetary gear train includes a first shaft connected with the first element and the sixth rotational element, and selectively connected with the input shaft, a second shaft connected with the ninth element and selectively connected with the input shaft, a third shaft connected with the eleventh element and the output shaft, a fourth shaft connected with the second, fifth, and twelfth rotational elements, a fifth shaft connected with the fourth and seventh rotational elements. The planetary gear train includes a plurality of additional shafts each selectively connecting a corresponding element to a transmission housing, the corresponding element being an element of the first, third, and fourth planetary gear sets that is not interconnected.

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 torque; a direction changer disposed on an input shaft side and transmitting the torque of the engine to the input shaft with or without change of rotation direction, or disposed on an output shaft side and outputting the torque of the output shaft with or without change of rotation direction; a first planetary gear set including first, second and third rotation elements; a compound planetary gear set including fourth, fifth, sixth, and seventh rotation elements by combining second and third planetary gear sets; a fourth planetary gear set including eighth, ninth, and tenth rotation elements.

Abstract: A planetary gear train includes input and output shafts, first to fourth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, and tenth to twelfth elements. The planetary gear train includes a first shaft connected with the third, fifth, and eighth elements and selectively connected with the input shaft, a second shaft connected with the fourth element and selectively connected with the input shaft, a third shaft connected with the ninth and twelfth elements and fixedly connected with the output shaft, and a fourth shaft connected with the first, sixth, and seventh elements, a fifth shaft fixedly connected with the eleventh element. The planetary gear train includes a plurality of additional shafts selectively connected to the transmission housing and connected to an element of the first and fourth planetary gear sets that is not connected with any of the first to seventh shafts.

Abstract: A planetary gear train of an automatic transmission includes an input shaft for receiving an engine torque; an output shaft for outputting a 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; and a fourth planetary gear set having tenth, eleventh, and twelfth rotational elements. The gear train further includes a first shaft and a second shaft each selectively connected with the input shaft; a third shaft fixedly connected with the output shaft; a fourth shaft fixedly connected with the first, sixth and eighth elements; a fifth shaft fixedly connected with the ninth and tenth elements; and a plurality of shafts, each selectively connected to the transmission housing and fixedly connected to one of the rotational elements of the planetary gear sets.

Abstract: A multi-stage transmission for vehicles includes an input shaft and an output shaft, a first planetary gear set, a second planetary gear set, a third planetary gear set, and a fourth planetary gear set configured to transmit rotary force between the input shaft and the output shaft. Each of the planetary gear sets has three rotary elements. Six gear shift elements are connected to the rotary elements of the planetary gear sets.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft configured to receive torque of an engine and an output shaft configured to output torque. The planetary gear train further includes a plurality of planetary gear sets comprising rotation elements, a first plurality of shafts connected to one of the rotation elements of the plurality of planetary gear sets, and a second plurality of shafts. Each of which is selectively connected to a transmission housing and fixedly connected to one of the rotation elements of the plurality of planetary gear sets that is not fixedly connected with any of the first plurality of shafts.

Abstract: A planetary gear train of an automatic transmission is disclosed. The planetary gear train includes an input shaft receiving torque of an engine and an output shaft outputting torque. A first planetary gear set includes first, second, and third rotation elements, a second planetary gear set includes fourth, fifth, and sixth rotation elements, a third planetary gear set includes seventh, eighth, and ninth rotation elements, and a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements. Each of a first plurality of shafts is fixedly connected with one of the rotation elements from the first, the second, the third, and the fourth planetary gear sets. A second plurality of shafts is formed by combinations of remaining rotation elements of the first, the second, and the fourth planetary gear sets that are not connected to the first plurality of shafts, and selectively and respectively connected to a transmission housing.

Abstract: A planetary gear train includes input and output shafts, and first to fourth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, and tenth to twelfth elements. A first shaft is connected to the third element and selectively connected to the input shaft, a second shaft is connected to the ninth element and selectively connected to the input shaft, a third shaft is connected to the eleventh element and the output shaft, a fourth shaft is connected to the first, fourth, and seventh elements, and a fifth shaft is connected to the second and tenth elements. A plurality of shafts each selectively connect a corresponding element to a transmission housing, the corresponding element being an element of the second, third, and fourth planetary gear sets that is not interconnected.