Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least eight 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 two clutches and four brakes.

Abstract: Compact transmission systems and vehicles with such transmission systems are provided. An exemplary compact transmission includes a drive shaft defining a drive axis and configured to be powered by a drive unit; a planetary gearset having a ring gear member, a planet gear member, a sun gear member, and a planet carrier having a carrier shaft defining a planetary axis, wherein the planetary axis is distanced from the drive axis; an output shaft defining an output axis, wherein the output axis is distanced from the planetary axis and from the drive axis; an output gear connected to the output shaft; a drive pinion gear configured to transfer torque from the drive shaft to the planetary gearset; and an output pinion gear configured to transfer torque from the planetary gearset to the output shaft.

Abstract: A driving force transmitting device includes an axle housing and a transaxle main body. The axle housing includes a supporting body and two shafts extending in opposite directions from the supporting body. The supporting body has an internal space. The transaxle main body is supported by the supporting body. The axle housing further includes a first breather plug. The first breather plug is fixed to the supporting body and is configured to discharge a gas in the internal space to an outside. The transaxle main body includes a gear mechanism, a case that accommodates the gear mechanism, and a second breather plug. The gear mechanism is configured to transmit a driving force. The second breather plug is fixed to the case and is configured to discharge a gas in the case to the outside. The second breather plug is located in the internal space.

Abstract: A transmission has an input shaft, first and second output shafts, and first and second planetary gear-set, connected together. The first output shaft is rotationally fixed to a first planetary gear-set second element, the second output shaft is rotationally fixed to a second planetary gear-set third element, a first planetary gear-set third element is rotationally fixed to a second planetary gear-set first element via a shaft, and a second planetary gear-set second element is secured to a rotationally fixed component. A first shift element blocks the third planetary gear-set by connecting third planetary gear-set elements in a rotationally fixed manner, a second shift element secures a third planetary gear-set first element to the rotationally fixed component, a third planetary gear-set second element is rotationally fixed to the first planetary gear-set first element via an intermediate shaft, and a third planetary gear-set third element is rotationally fixed to the input shaft.

Abstract: The invention relates to a transmission (100) for a hybrid drive arrangement which can be coupled to two drive assemblies (7, 8), comprising an input shaft (10), and an output shaft (11), at least one first, second, third and fourth shifting element (SE1, SE2, SE3, SE4), and at least one first planetary gear (5) and one second planetary gear (6). The input shaft (10) can be coupled to the ring gear planet carrier of the first planetary gear (5) by means of the first shifting element (SE1) and the output shaft (11) is coupled to the planet carrier of the first planetary gear (5). The planet carrier of the first planetary gear (5) can be coupled to the ring gear of the second planetary gear (6) by means of the second shifting element (SE2) and the planet carrier of the first planetary gear (5) can be coupled to the sun gear of the second planetary gear (6) by means of the third shifting element (SE3).

Abstract: A double-ratchet type one-way clutch, in which pawls do not knock the surfaces of ratchets when the double-ratchet type one-way clutch rotates in an idling direction, mainly comprises: a driving ratchet, a driven ratchet set, a pawl set, and rolling bearings. The pawl set comprises: a pawl base cover, a plurality of pawls, and a plurality of elastic elements. The driven ratchet set comprises: a ratchet of the driven ratchet set, balls, a ball cage, and a driven ratchet set supporting ring. When the double-ratchet type one-way clutch rotates in the idling direction, the driving ratchet firstly rotates relative to the ratchet of the driven ratchet set. After a top tooth surface of the ratchet of the driven ratchet set and a top tooth surface of the driving ratchet are complementary in an axial direction, the driving ratchet drives the ratchet of the driven ratchet set to rotate together.

Abstract: A multi-stage transmission for a vehicle includes: a first planetary gear set and a second planetary gear set each including three rotating elements; a compound planetary gear set including four rotating elements; and eight rotation shafts connected to the rotating elements of the planetary gear sets.

Abstract: A heavy-duty industrial transmission is provided that can be implemented in a frac pump system with planetary gearsets with straightforward shift methodologies, slow back-driven speeds, and no recirculating torque in any of the ranges. The heavy-duty transmission has a high number of ranges and may be configured with no reverse range, no countershaft, no overdrive range(s), small and consistent steps of ratios between ranges, and a deep or large reduction ratio of the lowest range, such as at least about a 5:1 reduction. The heavy-duty industrial transmission may have a four-stage planetary arrangement that is configured to provide nine (9) ranges for the transmission that only requires two double pack shifts, with the remaining shifts being single pack shifts.

Abstract: A transmission includes a main gear set, an auxiliary gear set and an electric motor with a rotor and a stator. A third shaft of the main gear set is connected to the transmission output shaft, and a first shaft of the auxiliary gear set is connected to the rotor. A second shaft of the auxiliary gear set is constantly connected to a first shaft of the main gear set. A third shaft of the auxiliary gear set is constantly connected to a second shaft of the main gear set, the third shaft of the main gear set or a fourth shaft of the main gear set.

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.

Abstract: A fixing apparatus for fixing an image onto recording material, includes a heating rotary member, film of a cylindrical shape, and pressure member configured to press the film from inside the film toward the heating rotary member to form a nip portion as an area where the heating rotary member and film contact. The pressure member includes a metallic member extending from an upstream side of a center in a recording material conveyance direction of the nip portion to a downstream side, wherein the recording material on which the image is formed is conveyed while being heated at the nip portion to fix the image onto the recording material. A center of gravity of the metallic member is on the upstream side of the center in the recording material conveyance direction of the nip portion in a cross-section perpendicular to a rotation axis direction of the heating rotary member.

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.

Abstract: A drive unit for a hybrid vehicle includes a drive assembly with an internal combustion engine and an electric motor, and a transmission featuring several sub-transmissions shifting between the drive assembly and an output. Through a planetary transmission, the electric motor is coupled to an input shaft of a first sub-transmission and an input shaft of a second sub-transmission. Through a separating clutch, the internal combustion engine is to the input shaft of the first sub-transmission and, if the separating clutch is locked, is coupled to the same element of the planetary transmission as the input shaft of the first sub-transmission.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft; an output shaft; a first to fourth planetary gear sets; and six friction elements disposed between at least one rotation element among the twelve rotation elements and another rotation element or a transmission housing, 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 fourth rotation element, the fifth rotation element is continuously connected to the eighth rotation element, the sixth rotation element is continuously connected to the eleventh rotation element, the ninth rotation element is continuously connected to the tenth rotation element, the second rotation element is selectively connected to the third rotation element, three friction elements among the six friction elements are operated at each speed stage.

Abstract: A transmission is provided having an input member, an output member, two planetary gear sets one of which is a selectively speed reducing gear set, another two planetary gear sets that may be stacked or nested to form a planetary gear set assembly, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The stacked or nested planetary gear set assembly has a carrier member for rotatably supporting a first plurality of pinion gears and a second plurality of pinion gears, a ring gear and a common gear member. The torque transmitting devices include clutches and brakes.

Abstract: A method of operating a vehicle drive-train comprising an internal combustion engine and a transmission system functionally connected to the internal combustion engine. The transmission has an interlocking shifting element, one shifting element half of which is functionally connected to the transmission input shaft while the other shifting element half is functionally connected to a transmission output shaft. Upon receipt of a command to change the transmission from a neutral position, in which a force flow through the transmission is interrupted, to an operating condition, in which the force flow through the transmission is produced, the interlocking shifting element is changed to an engaged operating condition. A speed difference between the shifting element halves is brought by varying the speed of the internal combustion engine into a speed difference window within which the interlocking shifting element can be changed to its engaged operating condition.

Abstract: A planetary gear train may include a first shaft receiving torque from an engine, a second shaft disposed in parallel with the first shaft, a first planetary gear set disposed on the first shaft including a first rotation element, a second rotation element and a third rotation element operated as an output element, and a second planetary gear set disposed on the second shaft including a fourth rotation element, a fifth rotation element, and a sixth rotation element. A planetary gear train may further include four transfer gears connecting rotation elements of the second planetary gear set with the first shaft and rotation elements of the first planetary gear set, and frictional elements connecting rotation elements with each other or with the first shaft and brakes connecting with the transmission housing.

Abstract: A planetary gear train may include an input shaft, an output shaft, first and second planetary gear sets each having three rotation elements, a first rotation shaft directly connected to one rotation element of the first planetary gear set and one rotation element of the second planetary gear set, and selectively connected to the input shaft, a second rotation shaft directly connected to another rotation element of the second planetary gear set and directly connected to the output shaft, a third rotation shaft directly connected to another rotation element of the first planetary gear set and the remaining rotation element of the second planetary gear set, and selectively connected to the input shaft and/or selectively connected to a transmission housing, and a fourth rotation shaft directly connected to the remaining rotation element of the first planetary gear set, and selectively connected to the input shaft through two paths and/or selectively connected to the transmission housing.

Abstract: A planetary gear train of an automatic transmission for a vehicle include: an input shaft; an output shaft; a first compound planetary gear set combining first and second planetary gear sets and firstly changing torque input through one input path and two variable input paths into six speeds; a second compound planetary gear set combining third and fourth planetary gear sets, secondly changing the six speeds a rotation speed of the input shaft input through one variable input path into eleven forward speeds and reverse speed, and finally outputting the changed rotation speed; and friction members including clutches interposed between two rotation shafts or between a rotation shaft and the input shaft, and brakes interposed between a rotation shaft and a transmission housing.

Abstract: An automatic transmission includes an input shaft, first, second, third, and fourth planetary gear sets, a plurality of engagement mechanisms, and an output member. The input shaft is rotatably supported inside a transmission case to be rotated by a driving force received from a drive source. The first, second, third, and fourth planetary gear sets are arranged in sequence along an axis line of the input shaft and each include three elements having a sun gear, a carrier, and a ring gear. The plurality of engagement mechanisms each releasably connect two of the three elements with each other or releasably connect one of the three elements to the transmission case. The output member is disposed on outer circumferences of the second and third planetary gear sets and connected to the ring gear of one of the second and third planetary gear sets to output rotation of the input shaft.

Abstract: A family of transmission gearing arrangements provides a plurality of forward speed ratios and one or more reverse speed ratios by selective engagement of shift elements in various combinations. An input and an output are provided. Three planetary gear sets are located at an offset position relative to the input axis and the output axis. Axis transfer gears are provided to transfer rotational energy from the input to one of the planetary gear sets, and from one of the planetary gear sets to the output.

Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.

Abstract: A transmission is provided having an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio.

Abstract: A power transmission includes an input, output, a planetary gearset including a first sun gear, a first ring gear, a first carrier driveably connected to the input, first pinions supported on the first carrier and meshing with the first sun gear, and second pinions supported on the first carrier and meshing with the first ring gear and first pinions, and a second planetary gearset including a second sun gear, a third sun gear, a second ring gear driveably connected to the output, a second carrier, third pinions supported on the second carrier and meshing with the second sun gear and second ring gear, and fourth pinions supported on the second carrier and meshing with the third sun gear and the third pinions.

Abstract: A transmission has an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and one reverse gear ratio.

Abstract: An multi-speed automatic transmission providing at least nine forward speeds and one reverse speed, includes four planetary gear sets, six shift control elements, an input shaft, an output shaft, and a transmission case. Each planetary gear set includes a sun gear, a pinion gear set, a carrier that rotatably supports the pinion gear set, and a ring gear. A carrier of a first planetary gear set is connected to the ring gear of a second planetary gear set and a carrier of the second planetary gear set is connected to the ring gear of the first planetary gear set. The first and second planetary gear sets are concentrically arranged in a common plane.

Abstract: A transmission is provided having an input member, an output member, at least three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish at least ten forward gear ratios and one reverse gear ratio.

Abstract: A power transmission system of a hybrid electric vehicle may include an input shaft receiving engine torque, a first planetary gear set disposed on the input shaft, and including a first sun gear selectively connected to a transmission housing, a first ring gear, and a first planet carrier directly connected to the input shaft, a second planetary gear set disposed on the input shaft, and including a second sun gear, a second ring gear directly connected to the first ring gear and directly connected to an output gear, and a second planet carrier selectively connected to the first planet carrier and selectively connected to the transmission housing, a first motor/generator directly connected to the first sun gear, and a second motor/generator directly connected to the second sun gear.

Abstract: A multi-stage automatic transmission in which planet gear mechanisms, external gears and friction elements are combined in order to realize nine forward gears and one rearward gear having excellent operating conditions for friction elements and superior shift range ratios, thereby achieving excellent power performance and fuel efficiency.

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes.

Abstract: An electro-mechanical drive unit connectable with multiple power sources for launching and propelling a vehicle includes an output member, a stationary member, a gear-train, and a torque-transmitting device. The drive unit also includes a compound planetary gear arrangement having a first, second, third, and fourth junction points. The power sources include a first motor/generator and a second motor/generator. The second motor/generator is operatively connected to the compound planetary gear arrangement at the first junction point via the gear-train and the output member is operatively connected to the compound planetary gear arrangement at the second junction point. Additionally, the first motor/generator is operatively connected to the compound planetary gear arrangement at the fourth junction point. Furthermore, the torque-transmitting device is engageable to ground the third junction point to the stationary member.

Abstract: A transmission of the present invention has an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish a plurality of forward speed ratios and at least one reverse speed ratio.

Abstract: An automatic transmission includes an input shaft, an output member, a first planetary gear system, a second planetary gear system, a third planetary gear system, a fourth planetary gear system, and an engagement mechanism. The input shaft is configured to be rotated with power of a driving source relative to the transmission case. The output member is to output rotation of the input shaft using multiple gear-shifting. The multiple gear-shifting is provided by setting at least three of first to third clutches and first to third brakes in a connection state.

Abstract: A transmission of the present invention has an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish a plurality of forward speed ratios and at least one reverse speed ratio.

Abstract: A planetary gear train may include a first shaft receiving torque from an engine, a second shaft disposed in parallel with the first shaft, a first planetary gear set disposed on the first shaft including a first rotation element, a second rotation element and a third rotation element operated as an output element, and a second planetary gear set disposed on the second shaft including a fourth rotation element, a fifth rotation element, and a sixth rotation element. A planetary gear train may further include four transfer gears connecting rotation elements of the second planetary gear set with the first shaft and rotation elements of the first planetary gear set, and frictional elements connecting rotation elements with each other or with the first shaft and brakes connecting with the transmission housing.

Abstract: A power transmission includes an input, output, a planetary gearset including a first sun gear, a first ring gear, a first carrier driveably connected to the input, first pinions supported on the first carrier and meshing with the first sun gear, and second pinions supported on the first carrier and meshing with the first ring gear and first pinions, and a second planetary gearset including a second sun gear, a third sun gear, a second ring gear driveably connected to the output, a second carrier, third pinions supported on the second carrier and meshing with the second sun gear and second ring gear, and fourth pinions supported on the second carrier and meshing with the third sun gear and the third pinions.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include: a first shaft; a second parallel shaft; a first planetary gear set on the first shaft including a first element selectively connected to the first shaft, a second element selectively connected to the first shaft or a transmission housing, and a third output element; a second planetary gear set on the second shaft, and including a fourth element selectively connected to the first shaft, connected to the first element, and selectively connected to the transmission housing, a fifth element connected to the third element and directly connected to an output gear, and a sixth element selectively connected to the first shaft; four transfer gears; and frictional elements including clutches selectively connecting the first, second, fourth, and sixth elements with the first shaft and brakes selectively connecting the second and fourth elements with the transmission housing.

Abstract: A planetary gear train of an automatic transmission may include a first shaft receiving engine torque, a second shaft parallel with the first shaft at a predetermined distance, a compound planetary gear set on the second shaft including a first rotation element connected to the first shaft through two paths and operated as a selective fixed element, a second rotation element connected to the first shaft through one path and operated as a selective fixed element, a third rotation element operated as an output element, and a fourth rotation element connected to the first shaft through one path, two transfer gears at connecting portions between the rotation elements of the compound planetary gear set and the first shaft, and frictional elements connecting the first, second, and fourth rotation elements to the first shaft and brakes connecting the first and second rotation elements to a transmission housing.

Abstract: A planetary gear train of an automatic transmission may include: an input shaft; an output shaft parallel with the input shaft; a first planetary gear set on the input shaft including a first, second and third rotation elements, the first selectively connected to the input shaft, and the third selectively connected to the input shaft; a second planetary gear set on the output shaft including a fourth, fifth and sixth rotation elements, the first selectively connected to the input shaft through two gear ratio paths and selectively connected to a transmission housing, the fifth selectively connected to the input shaft and the transmission housing, and the sixth connected to the second rotation element and directly connected to the output shaft; four transfer gears; and frictional elements including clutches and brakes.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving a torque of an engine, an output shaft disposed substantially in parallel with the input shaft at a predetermined distance and outputting a changed torque, a first planetary gear set disposed on the input shaft and including a first, second and third rotation elements, a second planetary gear set disposed on the output shaft and including a fourth, fifth and sixth rotation elements, four transfer gears forming the externally-meshed gears, and frictional elements including clutches connecting the input shaft and the rotation elements of the first and second planetary gear sets and brakes connecting the rotation elements of the first and second planetary gear sets and a transmission housing.

Abstract: A planetary gear train may include input shaft, output shaft, first planetary gear set disposed on the input shaft and including first rotation element selectively connected to the input shaft or transmission housing, second rotation element selectively connected to the input shaft or the transmission housing, and third rotation element connected to the output shaft, second planetary gear set disposed on the output shaft and including fourth rotation element selectively connected to the input shaft and connected to the first rotation element, fifth rotation element connected to the third rotation element and directly connected to the output shaft, and sixth rotation element selectively connected to the input shaft, three transfer gears, and six frictional elements including four clutches selectively connecting the first, second, fourth, and sixth rotation elements to the input shaft and two brakes selectively connecting the first and second rotation elements to the transmission housing respectively.

Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member.

Abstract: A transmission is connectable to an input member and includes first and second shaft members, first and second countershaft members, a plurality of co-planar gear sets, a compound planetary gear set, a plurality of torque transmitting elements, and an output member. The torque transmitting devices include a plurality of brakes, synchronizer assemblies, and clutches including a dual clutch assembly. The transmission is operable to provide at least three reverse speed ratios and at least nine forward speed ratios between the input member and the output member.

Abstract: A transmission comprising four gear sets (P1, P2, P3, P4), eight shafts and six shift elements. The drive shaft is connected with sun gear of set (P1) and carrier of set (P4). Carrier of set (P1) is connected to shaft (3) which is connectable to a housing, via a first brake, and connectable to shaft (5), via clutch (35). Shaft (5) interconnects the ring gear of set (P2) with the sun gears of sets (P3, P4). Shaft (6) interconnects ring gear of set (P1) with carrier of set (P2). Shaft (4) couples sun gear of set (P2) to the housing, via a brake. Ring gear of set (P3) is connected to the housing. The output shaft is connectable, via clutch (27), with shaft (7) which is connected to ring gear of set (P4) and, via clutch (28), with shaft (8) which is connected to carrier of set (P3).

Abstract: A planetary gear train of an automatic transmission may include: an input shaft; an output shaft; a first planetary gear set including first, second, and third elements disposed on the input shaft with two elements selectively connected to the input shaft; a second planetary gear set including fourth, fifth, and sixth elements disposed on the output shaft with two elements selectively connected to the input shaft, two elements connected to two elements of the first planetary gear set, and one element directly connected to the output shaft; four transfer gears selectively meshing the fourth, fifth, and sixth elements with the input shaft and the first planetary gear set; and six friction members including four clutches variably connecting the first planetary gear set and the second planetary gear set to the input shaft and two brakes variably connecting selected elements to a transmission housing.

Abstract: A gear train of an automatic transmission for vehicles has the advantages of simplifying structures of the automatic transmission and improving power delivery performance and fuel economy as a consequence of realizing at least nine forward speeds and one reverse speed by combining three simple planetary gear sets with four clutches and three brakes.

Abstract: An automatic transmission includes a first planetary gear set including a first sun gear, a first pinion, and a ring gear of the first planetary gear set. The transmission includes a second planetary gear set including a second sun gear, a second pinion, and a common gear. The transmission includes a third planetary gear set including a third sun gear, the second pinion, a third pinion, and the common gear. The transmission also includes a fourth planetary gear set including the common gear, a fourth pinion, and a ring gear of the fourth planetary gear set. The second planetary gear set and the third planetary gear set form a Ravigneaux gear set. The fourth planetary gear set is concentrically arranged with the second planetary gear set or the third planetary gear set, and the second and third planetary gear sets are radially inward of the fourth planetary gear set.

Abstract: An automatic transmission including a Ravigneaux planetary gear unit, an input member, an output member disposed on one side of the Ravigneaux planetary gear unit, five friction elements disposed on the other side of the Ravigneaux planetary gear unit, and a partition member cooperating with an automatic transmission case to define a transmission chamber in which the output member, the Ravigneaux planetary gear unit, and the respective friction elements are accommodated. The output member is supported on a cylindrical portion extending from the partition member toward the Ravigneaux planetary gear unit in an axial direction of the input member.

Abstract: A power-shiftable transmission, in particular an automatic transmission for a vehicle, which comprises a plurality of frictional shifting elements and at least one interlocking shifting element (A, B, C, D, E) and a plurality of gearwheels which can be engaged in a power flow by the shifting elements (A, B, C, D, E). In order to engage a gear step, at least two associated shifting elements (A, B, C, D, E) are engaged and at least one interlocking shifting element (B), as a shifting element (B) to be engaged, is associated with a gear step to be engaged with a supporting gear.

Abstract: A transmission comprising at least four planetary gear sets and at least six coupling elements which are all disposed coaxially with each other, and an input rotary member which is disposed on one of opposite axial sides of the transmission and which receives an input rotary motion, the transmission having a plurality of speed positions which have respective different speed ratios and which are established by engaging actions of respective combinations of coupling elements selected from the at least six coupling elements and releasing actions of respective combinations of the other coupling elements selected from the at least six coupling elements, wherein an improvement includes: the at least six coupling elements including at least two input clutches which are all connected to the input rotary member and which are all disposed on one of opposite axial sides of the at least four planetary gear sets, which one side corresponds to the one of the opposite axial sides of the transmission.