Abstract: In a power transmission apparatus for a vehicle, in event of detection of an anomaly with a possibility of an ON failure of a lockup hydraulic control valve, a fail safe mode is established by placing a first switching valve and a third switching valve in respective predetermined connection states, and placing a failure switching valve in a predetermined connection state based on an output of the lockup hydraulic control valve, whereby a lockup clutch is held in its released state, and a forward-driving engagement device is engaged by a control pressure of a second hydraulic control valve, for thereby enabling a forward driving of the vehicle. Upon selection of a neutral range in the event of the detection of the anomaly, an output of the lockup hydraulic control valve and an output of the second hydraulic control valve are stopped.

Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios and at least nine reverse speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, a fourth planetary gearset, and a fifth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have five planetary gearsets and eight selective couplers. The eight selective couplers may include three clutches and five brakes.

Abstract: A transmission for a bicycle includes at least four shift elements, one input shaft (1), a first planetary gear set (PS1) which is operatively connected to the input shaft (1), and a second planetary gear set (PS2). A carrier of the first planetary gear set is rotationally fixed to a carrier of the second planetary gear set (PS2).

Abstract: A transmission arrangement comprises a first planetary gear set, a second planetary gear set, a third planetary gear set, an input shaft connectable to a prime mover, the input shaft being operatively connected to a sun gear of the second planetary gear set and to a sun gear of the third planetary gear set, an output shaft operatively connected to a ring gear of the first planetary gear set and to a planet carrier of the second planetary gear set. The transmission arrangement further includes a gear selection arrangement including a first locking mechanism connected to a planet carrier of the first planetary gear set, a second locking mechanism connected to a sun gear of the first planetary gear set, a ring gear of the second planetary gear set and to a planet carrier of the third planetary gear set, and a third locking mechanism.

Abstract: The invention relates to a power-shift multi-speed transmission (10), comprising at least one stepped planet gear (20), which revolves around a first sun gear (18) and in a first ring gear (26). The first ring gear (26) is held on a lockable freewheel (28). A first planet gear step (22) of the stepped planet gear (20) revolves in the first ring gear (26), while a second planet gear step (24) revolves in a second ring gear (36), with which at least one brake (34) is associated.

Abstract: A multi-stage planetary transmission for a bicycle or a pedelec includes a transmission input shaft (1), a transmission output shaft (2), and at least three planetary gear sets (VRS, VR1, VR2, RS1, RS2, NRS, NR1, NR2). A first planetary gear set (RS1) and a second planetary gear set (RS2) are configured as a main gear set and at least one further planetary gear set (VRS, VR1, VR2, NRS, NR1, NR2) is configured as a front-mounted gear set and/or as a rear-mounted gear set. At least three free-wheel clutches (F1, F2, F3, F4) and at least three brakes (B1, B2, B3, B4) are provided for implementing at least eight gears (G1, G2, G3, G4, G5, G6, G7, G8, G9, G10, G11, G12, G13, G14, G15, G16). Moreover, the multi-stage transmission may be a bottom bracket transmission. In addition, a bicycle or pedelec with the multi-stage transmission is proposed.

Abstract: A transmission, in particular a reducer transmission (34), which has two planetary sets and two shift elements (S1, S2). In addition, a transmission assembly which has a main transmission (32), of a planetary design, in particular a continuous power split transmission of a planetary design, and such a transmission which is coupled, as a reducer transmission (34), with the main transmission (32). Also, a powertrain (10) of a working machine with such a transmission assembly (30).

Abstract: A planetary gearbox comprises a driving shaft, a plurality of planetary gear train units (PGTUs), a carrier arm disc, a driven shaft and at least one brake assembly. Each of the PGTU further comprises a sun gear, at least one planet gear that is meshed to the sun gear and mounted on a planet axle, a ring gear that is meshed to the planet gear and at least one circular planet carrier arm (CPCA) that is coupled to the planet axle. The driving shaft of the planetary gearbox is coupled to the sun gear of the PGTU thereby causing the sun gear to rotate along with it. Further, the CPCA of the PGTU is coupled to the carrier arm disc and the carrier arm disc is further coupled to the driven shaft.

Abstract: A motor vehicle transmission arrangement (21) may include a transmission housing (8), a transmission gearing (2), and a hydrodynamic torque converter (1) operatively connected to the transmission gearing (2). The arrangement (21) may further include a shift element (K0) and an internal combustion engine (VM) operatively connectable to the hydrodynamic torque converter (1) by the shift element (K0). Additionally, the arrangement (21) may include a gear set (6) having a constant gear ratio, and at least one electric machine (EM) as a drive, where the electric machine (EM) is operatively connected to the hydrodynamic torque converter (1) by the gear set (6). The electric machine (EM), the gear set (6), the shift element (K0), and the torque converter (1) are arranged in a wet space area (7) of the transmission housing (8). The gear set (6) is upstream from the shift element (K0) in the direction of power flow.

Abstract: A multiple speed transmission includes an input member, an output member, first, second, third and fourth planetary gearsets each having first, second and third members, and a plurality of interconnecting members each connected between at least one of the first, second, third, and fourth planetary gearsets and at least another of the first, second, third, and fourth planetary gearsets. The transmission includes a plurality of torque-transmitting mechanisms between the input and output members, wherein the torque transmitting mechanisms are selectively engageable in combinations of at least four to establish at least ten forward speed ratios between the input member and the output member.

Abstract: A power transmission includes an input shaft, an output shaft, and a plurality of gear ratios selectably engagable with the input shaft and the output shaft to transfer rotational energy from the input shaft to the output shaft to drive the output shaft at a selected output shaft speed. A plurality of clutches, each clutch is located at a clutch lay shaft of a plurality of clutch lay shafts and is configured to control selective engagement of only one gear ratio of the plurality of gear ratios.

Abstract: A multiple speed transmission includes an input shaft, an output shaft, a first planetary gearset having a first member, a second member, and a third member, and a second planetary gearset having a first member, a reaction member, a second member, a third member, and fourth member. The transmission also includes a plurality of interconnecting members each connected between at least one of the first and second planetary gearsets and at least another of the first and second planetary gearsets. The transmission includes a plurality of torque-transmitting mechanisms which are selectively engageable in combinations of at least two to establish a plurality of forward speed ratios and a plurality of reverse speed ratios between the input shaft and the output shaft.

Abstract: A modular hybrid transmission configurable between a 9-speed configuration and an 8-speed configuration includes first, second, third, and fourth planetary gear sets each having first, second, and third elements. Seven torque transmitting devices are each selectively engageable to interconnect one of the first, second, and third elements of one of the planetary gear sets directly with (i) one of the first, second, and third elements of another one of the planetary gear sets, (ii) a housing, or (iii) an input member. The seven torque transmitting devices are selectively engageable to establish nine forward speed ratios and at least one reverse speed ratio. Upon removal of a fourth torque transmitting device, the transmission is arranged in the 8-speed configuration and the remaining six torque transmitting devices are selectively engageable to establish eight forward speed ratios and at least one reverse speed ratio.

Abstract: The input element of the automatic transmission is fixedly connected to the second sun gear, the output element is fixedly connected to the third planetary carrier, the second planetary carrier is fixedly connected to the third gear ring, the first gear ring is fixedly connected to the third planetary carrier, and the third sun gear is stationary. The first brake is engaged to brake the first rear sun gear, the second brake is engaged to brake the first front sun gear, and the third brake is engaged to simultaneously brake the first planetary carrier and the second gear ring; the first rear sun gear is connected to the input element via the first clutch, the first planetary carrier is connected to the second sun gear via the second clutch, and the first planetary carrier is connected to the second gear ring via the third clutch.

Abstract: A transmission gearing arrangement produces at least nine forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. One embodiment includes four simple planetary gear sets, three clutches, and three brakes. A second embodiment includes four simple planetary gear sets, four clutches, and two brakes. In this second embodiment, three of the clutches and one of the brakes form a four shift element module. A third embodiment includes two axis transfer gear pairs, three simple planetary gear sets, five clutches, and one brake.

Abstract: A planetary gear train includes an input shaft, an output gear, first to third planetary gear sets respectively having first to third, fourth to sixth, and seventh to ninth rotation elements, a first shaft fixedly connected to the second rotation element and the input shaft, a second shaft fixedly connected to the sixth and eighth rotation elements and the output gear, a third shaft fixedly connected to the first rotation element and a transmission housing, a fourth shaft fixedly connected to the third rotation element, a fifth shaft fixedly connected to the fourth and seventh rotation elements, a sixth shaft fixedly connected to the fifth rotation element, and a seventh shaft fixedly connected to the ninth rotation element.

Abstract: An automatic transmission realizes forward 10-speed and reverse 1-speed shift stages by including an input shaft; a first planetary gear set; a second planetary gear set connected through one part and selectively connected through another part with the first planetary gear set, and receiving power from the input shaft; a third planetary gear set connected with the first planetary gear set through one part and selectively connected with the first planetary gear set through another part, and selectively connected with the second planetary gear set; a fourth planetary gear set selectively connected to a transmission housing, selectively connected with the first planetary gear set, selectively connected with the second planetary gear set, and connected with the third planetary gear set through one part and selectively connected with the third planetary gear set through another part; and an output shaft connected with the third planetary gear set, and outputting speed-shifted power.

Abstract: An automatic transmission and a method of synchronization are described. The automatic transmission includes a plurality of planetary gear sets, a plurality of dog clutches and a plurality of brakes coupled to the plurality of planetary gear sets, and an electric machine coupled to the plurality of dog clutches and a plurality of brakes via the planetary gear sets. Further, the automatic transmission includes a first speed sensor measuring a first speed of the electric machine and a second speed sensor measuring a second speed of an output shaft, and a synchronization controller configured to receive the first speed sensor data and the second speed sensor data, determine a synchronization speed, and adjust the first speed of the electric machine to the synchronization speed.

Abstract: A planetary gear train of an automatic transmission for a vehicle includes input and output shafts, and first, second, third, fourth, and fifth planetary gear sets, each including three rotational elements. The gear train also includes nine shafts for selectively connecting the planetary gear sets, the input and output shafts, and a transmission housing in various configurations to achieve at least ten forward speeds and at least one reverse speed.

Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include three clutches and three brakes or four clutches and two brakes.

Abstract: An automatic transmission for a vehicle, may include an input shaft receiving power; an output shaft outputting power; a first planetary gear set having first, second, and third rotation elements; a second planetary gear set having fourth, fifth, and sixth rotation elements; a third planetary gear set having seventh, eighth, and ninth rotation elements; a fourth planetary gear set having tenth, eleventh, and twelfth rotation elements; a fifth planetary gear set having thirteenth, fourteenth, and fifteenth rotation elements; and first to ninth shafts connecting the rotation elements of the first planetary gear set to the fifth planetary gear set.

Abstract: A planetary gear train apparatus of automatic transmission may include input and output shafts first to fifth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, tenth to twelfth, and thirteenth to fifteenth elements, first shaft fixed to the third element and the input shaft, second shaft fixed to the fourteenth element and the output shaft, third shaft fixed to the first and fourth elements, fourth shaft fixed to the second, eighth, and fifteenth elements, fifth shaft fixed to the fifth element, sixth shaft fixed to the sixth, ninth element, and eleventh elements, and shafts, each of which is selectively connectable to housing and fixed to element of the third, fourth, and fifth planetary gear sets which is not fixed to the first to sixth shafts.

Abstract: A planetary gear train may include: an input shaft; an output shaft; 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; four clutches, each selectively connecting at least one of the first to twelfth rotation elements to another rotation element or the input shaft; and two brakes, each selectively connectable at least one of the first to twelfth rotation elements to a transmission housing.

Abstract: A transmission arrangement for a vehicle includes a first, a second, a third, and a fourth planetary gear set including a sun gear, a planet carrier and a ring gear, respectively, wherein the transmission arrangement further includes a transmission housing, an input shaft and an output shaft, wherein the ring gear of the first planetary gear set and the input shaft are operatively connected to each other; the sun gear of the first planetary gear set, and the sun gear of the second planetary gear set are operatively connected to each other; the planet carrier of the second planetary gear set and the ring gear of the third planetary gear set are operatively connected to each other; the planet carrier of the third planetary gear set is operatively connected to the transmission housing; the sun gear of the third planetary gear set and the sun gear of the fourth planetary gear set are operatively connected to each other; and the planet carrier of the fourth planetary gear set and the output shaft are operatively c

Abstract: A transmission arrangement for a vehicle includes a first, a second, a third, and a fourth planetary gear set including a sun gear, a planet carrier and a ring gear, respectively, wherein the transmission arrangement further includes a transmission housing, an input shaft and an output shaft, wherein the sun gear of the first planetary gear set and the input shaft are operatively connected to each other; the ring gear of the first planetary gear set and the ring gear of the second planetary gear set are operatively connected to each other; the planet carrier of the second planetary gear set and the sun gear of the third planetary gear set are operatively connected to each other; the sun gear of the second planetary gear set and the planet carrier of the third planetary gear set are operatively connected to each other; the planet carrier of the third planetary gear set and the ring gear of the fourth planetary gear set are operatively connected to each other; and the planet carrier of the fourth planetary gear

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

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 for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting 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, and a fourth planetary gear set having tenth, eleventh, and twelfth rotation elements. The planetary gear train may further include a first plurality of shafts each fixedly connected with at least one of the rotation elements from the first, second, third, or fourth planetary gear sets, a second plurality of shafts, each selectively connected to a transmission housing and fixedly connected to a rotation element of the first and third planetary gear sets that is not fixedly connected with any of the first plurality of shafts.

Abstract: Disclosed is a multi-stage transmission for a vehicle. The multi-stage transmission includes: an input shaft, an output shaft, and a first planetary gear set, a second planetary gear set, a third planetary gear set, and a fourth planetary gear set provided between the input shaft and the output shaft to transfer a torque. Each planetary gear set includes three rotating elements and six shifting elements connected to the rotating elements of the first, second, third and 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. The second rotating element thereof is fixedly connected to a first rotating element of the third planetary gear set. A third rotating element thereof is fixedly connected to a third rotating element of the fourth planetary gear set.

Abstract: A planetary gear train may include 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, fifth planetary gear set including thirteenth to fifteenth rotation elements, first shaft fixed to the first and fifth rotation elements and fixed to the input shaft, second shaft fixed to the fourteenth rotation element and the output shaft, third shaft fixed to the sixth and tenth rotation elements, fourth shaft fixed to the eighth and fifteenth rotation elements, fifth shaft fixed to the eleventh and thirteenth rotation elements, sixth shaft fixed to the twelfth rotation element, seventh shaft fixed to the third, fourth, and seventh rotation elements, eighth shaft fixed to the second rotation element, and ninth shaft fixed to the ninth rotation element.

Abstract: A planetary gear train may include 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, a first shaft connected to the second element and selectively connectable to the input shaft, a second shaft connected to the fourth element, selectively connectable to the input shaft and a transmission housing, a third shaft connected to the fifth and ninth element, selectively connectable to the input shaft and the transmission housing, a fourth shaft connected to the third and eleventh elements and the output shaft, a fifth shaft connected to the first, sixth, eighth, and tenth elements, a sixth shaft connected to the seventh element, and a seventh shaft connected to the twelfth element and selectively connectable to the transmission housing.

Abstract: A torque transmission apparatus incorporates a differential gear system and a stationary sensor connected to the differential gear system for measuring output torque. The stationary sensor may be connected to a measurement output element of the differential gear system by a torsionally compliant measurement member, wherein the stationary sensor measures torsional deformation of the measurement member. The torsional deformation may be measured directly, or it may be measured following amplification by a gear train. A rotary position sensor may be used as the stationary sensor. Alternatively, the stationary sensor may be connected to the measurement output element of the differential gear system by way of a rigid measurement member, wherein the stationary sensor measures force applied by the measurement member. In this alternative, a force sensor may be used as the stationary sensor.

Abstract: A planetary gear train apparatus of an automatic transmission may include 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, a first shaft fixed with the third element, and selectively connectable to the input shaft, a second shaft fixed with the fourth element, and selectively connectable to the input shaft, a third shaft fixed with the eleventh element and the output shaft, a fourth shaft fixed with the first, sixth, and ninth elements, a fifth shaft fixed with the seventh and twelfth elements, and shafts, each of which is selectively connectable to a housing and fixed to an element of the first to fourth gear sets which is not fixed with of the first to fifth 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 planetary gear train may include 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, a first shaft connected to the fifth and eighth elements, and selectively connectable to the input shaft, a second shaft connected to the tenth element, and selectively connectable to the input shaft, a third shaft connected to the ninth element the output shaft, a fourth shaft connected to the third and twelfth elements, a fifth shaft connected to the seventh and eleventh elements, and a plurality of shafts each selectively connecting a corresponding element to a transmission housing, the corresponding element being an element of the first and second planetary gear sets which is not interconnected.

Abstract: A planetary gear train of an automatic transmission including: input and output shafts, first to fifth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, tenth to twelfth, and thirteenth to fifteenth rotational elements, a first shaft connected with the second rotational element and the input shaft, a second shaft connected with the fourteenth rotational element and the output shaft, a third shaft connected with the sixth and thirteenth rotational elements, a fourth shaft connected with the tenth and fifteenth rotational elements, a fifth shaft connected with the third, fourth, and seventh rotational elements, a sixth shaft connected with the eighth rotational element, a seventh shaft connected with the fifth, ninth, and eleventh rotational elements, an eighth shaft connected with the first rotational element, and a ninth shaft connected with the twelfth rotational element.

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 transmission for a vehicle capable is provided to improve fuel efficiency through multiple gear shift stages and enhance power performance of an engine. By combining first and second planetary gear sets, a compound planetary gear set, and multiple frictional elements selectively connecting rotary components of the three planetary gear sets via a corresponding shaft, the transmission provides eleven forward gear stages and three reverse gear stages. In particular, a first rotary element of the first planetary gear is fixedly connected to a transmission case, a second rotary element of the first planetary gear is fixedly connected to a second rotary element of the second planetary gear, and a third rotary element of the first planetary gear device is selectively connected to a first rotary element of the compound planetary gear set and a fourth rotary element of the compound planetary gear set.

Abstract: A multi-stage transmission for a vehicle includes: an input shaft, an output shaft, a first, a second, a third, and a fourth planetary gear device, each of which is disposed between the input shaft and the output shaft, and six gear-shift elements connected to rotation elements of the planetary gear devices. A first rotation element of the third planetary gear device is fixedly connected to a first rotation element of the first planetary gear device and to a first rotation element of the second planetary gear device. A second rotation element of the third planetary gear device is fixedly connected to a third rotation element of the first planetary gear device and to a third rotation element of the fourth planetary gear device. A third rotation element of the third planetary gear device is selectively connected to the input shaft.

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, four planetary gear sets, and eight shafts.

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.

Abstract: A planetary gear train may include 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, fifth planetary gear set including thirteenth to fifteenth rotation elements, first shaft fixed to the first and sixth rotation elements, and input shaft, second shaft fixed to the fourteenth rotation element and output shaft, third shaft fixed to the third and seventh rotation elements, fourth shaft fixed to the fifth and eighth rotation elements, fifth shaft fixed to the ninth and tenth rotation elements, sixth shaft fixed to the eleventh and fifteenth rotation elements, and shafts formed by remaining rotation elements among the first to fifteenth rotation elements not connected to the first to sixth shafts, and each thereof selectively connectable to transmission housing.

Abstract: A transmission (G) for a hybrid vehicle includes a drive shaft (GW1), an output shaft (GW2), three planetary gear sets (P1, P2, P3), an electric motor (EM) with a rotationally fixed stator (S) and with a rotatable rotor (R), and five shift elements (03, 04, 05, 14, 15). Six forward gear ratios (1 to 6) and one reverse gear ratio (R1) are formable through selective pairwise closure of the five shift elements.

Abstract: A vehicular multi-stage transmission includes: input and output shafts; first, second, third and fourth planetary gear devices each including first, second and third rotary elements; and seven shifting elements connected to the rotary elements of the four planetary gear devices. In particular, the second rotary element of the first planetary gear device PG1 is selectively connected to a transmission case by a first shifting element while being selectively connected to the input shaft, and the secondary rotary element of the first planetary gear device is selectively connected to the third rotary element of the second planetary gear device, the first rotary element of the third planetary gear device, and the first rotary element of the fourth planetary gear device. In addition, the third rotary element of the first planetary gear device is fixedly connected to the second rotary element of the second planetary gear device.

Abstract: A planetary gear train of an automatic transmission for a vehicle is disclosed and may include: an input shaft receiving torque of an engine; an output shaft outputting torque; a first, second, third and fourth planetary gear set, each having three rotation elements, together first-twelfth rotation elements; a first shaft fixedly connected to a second rotation element and selectively connected to the input shaft; a second shaft fixedly connected to a fourth rotation element and selectively connected to the input shaft; a third shaft fixedly connected to an eighth rotation element and a twelfth rotation element, and fixedly connected to the output shaft; a fourth shaft fixedly connected to a first rotation element, a fifth rotation element, and a ninth rotation element; a fifth shaft connected to a sixth rotation element and an eleventh rotation element; and a plurality of shafts selectively connected to a transmission housing.

Abstract: A planetary gear train of an automatic transmission for a vehicle is disclosed. The planetary gear train may include: an input shaft receiving torque of an engine; an output shaft outputting 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 a fifth planetary gear set including thirteenth, fourteenth, and fifteenth rotational elements. The planetary gear train improves power delivery performance and fuel economy of a vehicle by achieving ten forward speed stages and one reverse stage.

Abstract: A transmission may include input shaft connected to second rotary element of the third planetary gear set and first clutch; first shaft connecting first rotary element of the second planetary gear set, and second clutch; second shaft connecting first rotary element of the third planetary gear set and first brake; third shaft connecting first rotary element of the first planetary gear set and third clutch; fourth shaft connecting third rotary element of the fourth planetary gear set, the third clutch, and second brake; fifth shaft connecting second rotary element of the first planetary gear set, second rotary element of the second planetary gear set, and third rotary element of the third planetary gear set; and sixth shaft connecting third rotary element of the first planetary gear set, third rotary element of the second planetary gear set, first rotary element of the fourth planetary gear set, and fourth clutch.

Abstract: Disclosed is a vehicle transmission capable of improving fuel economy and performance of a vehicle with an increased number of gear stages. The vehicle transmission includes three simple planetary gear sets and one compound planetary gear set or includes five simple planetary gear sets. A shifting operation is performed by changing speed and direction of rotation of gears in a manner of selectively connecting and disconnecting rotary elements of the gear sets and a plurality of friction members. The vehicle transmission provides ten or more forward speed ratios and one or more reverse speed ratios through this shifting operation.

Abstract: A planetary transmission includes a plurality of planetary gear sets. Each of the plurality of planetary gear sets has a plurality of planetary gear set shafts. At least one additional rotatably mounted shaft is connectable to at least one of the plurality of planetary gear set shafts by at least one shift element in order to realize at least one ratio. The at least one additional rotatably mounted shaft is also connectable into power flow between an input shaft and an output shaft by the at least one shift element. The at least one additional rotatably mounted shaft is operatively connected directly to a component fixed to a housing, by which operative connection actuation energy for the at least one shift element is transferable from the component fixed to the housing into the at least one additional rotatably mounted shaft.