Abstract: Methods and sysemteds for a driveline, comprising: a transmission having an input and an output, a power take-off (PTO), a first electric motor drivingly engaged or selectively drivingly engaged with the input of the transmission, a second electric motor, a first clutching device, and a second clutching device, wherein the second electric motor is selectively drivingly engaged with the input of the transmission through the first clutching device, and wherein the second electric motor is selectively drivingly engaged with the PTO through the second clutching device. The present document further relates to a vehicle including said dual motor electric driveline, and to a method of controlling said dual motor electric driveline.

Abstract: An aircraft power plant has a hybrid propulsion system having an electric motor, an output shaft drivingly connectable to a thrust generator, a combustion engine, a compressor, and a planetary gear train having an Auxiliary Power Unit (APU) mode in which the electric motor is in driving engagement with the compressor via the planetary gear train while the combustion engine is disengaged from the output shaft, and a propulsion mode in which the combustion engine and the electric motor are in driving engagement with the output shaft via the planetary gear train.

Abstract: A shifting group for a drive train of a motor vehicle for coupling and decoupling a drive shaft of a drive train as required, with an actuator for actuating a blocking element, a selector rod and a selector fork which is connected to the selector rod. The first drive shaft and the second drive shaft are arranged coaxially with respect to one another, the blocking element blocks an axial displacement of the selector rod in a first switching position and enables said axial displacement in a second switching position, the selector fork engages into a groove of one of the drive shafts, an actuation of the shifting group brings about an axial displacement of a drive shaft, and a clutch between the first drive shaft and the second drive shaft is opened or closed by way of the axial displacement of the selector fork.

Abstract: Disclosed is a method for operating a multi-gear vehicle transmission having a plurality of shifting elements (A, B, C, D, E) for engaging the gears of the vehicle transmission, where, in a neutral gear an input (AN) and an output (AB) of the vehicle transmission are decoupled from one another, and where, in a driving gear the input (AN) and the output (AB) of the vehicle transmission are coupled to one another in order to propel the vehicle, by closing at least one shifting element (B). When the neutral gear is engaged, at least an actuation condition of a vehicle brake (11) and a transmission condition with elevated drag losses are detected, where, when the neutral gear is engaged, the shifting element (B) for the driving gear is vented if it is recognized that the vehicle brake (11) has been released and the transmission condition with elevated drag losses pertains.

Abstract: A drive system comprising a rotatable input disc that receives an input rotational force and rotates about a longitudinal axis, where the input disc comprises driving features formed on its interior face. The drive system also comprises a rotatable output disc that rotates about the longitudinal axis and comprises driving features formed on its interior face, where the output disc provides an output rotational force. The drive system comprises a drive core between the interior face of the input disc and the interior face of the output disc to translate the input rotational force to the output rotational force. As the input disc is rotated by the input rotational force, engaging feature(s) of power disc(s) in the drive core engages the driving features of the input disc causing rotation of each power disc. As the power disc(s) is rotated, the engaging feature(s) of each power disc(s) engages the driving features of the output disc causing rotation of the output disc.

Abstract: An electric drive arrangement for a drive train of a work machine includes a multi gear transmission. The multi gear transmission includes at least two gears that provide different transmission ratios for various driving modes of the work machine, a multi gear transmission drive, and a multi gear transmission output configured to be mechanically coupled to an axle of the drive train. The electric drive arrangement further includes an electric motor configured to drive a driving movement of the work machine via a shaft that is mechanically coupled to the multi gear transmission drive of the multi gear transmission.

Abstract: The invention relates to a multi-speed planetary transmission (10). The multi-speed planetary transmission (10) comprises a driveshaft (12), which comprises a sun gear (18) and a ring gear (19), and an output shaft (14), which comprises a planet carrier with at least one planet gear (30). The drive shaft (12) and the output shaft (14) can be connected together or separated from each other by means of a clutch (20). The multi-speed planetary transmission (10) has a freewheel (26), via which a shift is carried out between a first transmission ratio i_1 and a second transmission ratio i_2 under a load using the clutch (20).

Abstract: Damper apparatus for use with vehicle torque converters are disclosed. A disclosed damper assembly for a vehicle torque converter includes a first portion operatively coupled to a clutch of the vehicle torque converter and configured to receive an engine torque from the clutch based on a state of the clutch. The damper assembly also includes a second portion and a hub rotatably coupled to a turbine of the vehicle torque converter. The damper assembly also includes a gear train including a ring gear coupled to the first portion, a planet gear rotatably coupled to the second portion, and a sun gear coupled to the hub. The damper assembly also includes a primary damping element positioned in a cavity formed by the second portion. Rotation of the first portion relative to the second portion compresses and decompresses the primary damping element to dampen a torsional vibration associated with the engine torque.

Abstract: A seal system for coaxially aligned shafts includes an input shaft and an output shaft coaxially aligned with the input shaft. The seal system includes a seal adapter support housing coupled to the output shaft and a seal positioned between an end of the input shaft and an end of the seal adapter support housing. The input shaft is configured to rotate at a speed that is different than a speed of the output shaft.

Abstract: A gear transmission for aeronautical applications including an input shaft rotating about an axis, an output shaft rotating about the axis, and a transfer group for transferring the torque from the input shaft to the output shaft. The transfer group includes a first torque splitting stage, receiving the torque from the input shaft, and a second torque splitting stage, receiving the torque from the first stage. The first stage presents at least one first rotating member and the second stage presents at least one second rotating member. The input shaft and the first rotating member cooperate with one another at respective interaction surfaces. The rotating members cooperate with one another at respective friction surfaces. One of the interaction surfaces has first engagement elements, and another of the interaction surfaces has second engagement elements that are clutch coupled to one another.

Abstract: A speed reduction apparatus includes a motor and a speed reduction assembly. The motor includes a first rotating shaft and a second rotating shaft a second rotator and a first rotator, a stator, a first motor housing, a second motor, and a first bearing and a second bearing at a radial outer side of the first rotating shaft, the first bearing and the second bearing being axially located at the same side of the first rotator facing the first motor housing. The speed reduction assembly includes a first gear, third gears engaging with the first gear, and a second gear, an output shaft, the third gears turning the second gear to rotate, and the second gear driving the output shaft, and a bracket between the output shaft and the first rotating shaft, the first gear, the second gear and the third gears being located at an axial outer side of the first motor housing, and at least one of the first gear, the second gear and the third gears being located radial outer sides of the first bearing and the second bearing.

Abstract: A freewheel mechanism containing an external raceway, rolls, wedges, characterized in that, it contains the external raceway (1) and an external gear (2) that are rigidly connected with each other, and it contains satellite gears (5) and rolls (4) that are rigidly connected with each other, wherein the satellite gears (5) mate with the external gear (2), wherein the satellite gears (5) are mounted on satellite axles (7), wherein the satellite axles (7) are mounted in a yoke (8), wherein the freewheel mechanism contains wedges (9a) of type A, which are placed between the rolls (4) and the external raceway (1).

Abstract: A transmission intended to be mounted on a rear wheel axle of a bicycle between a sprocket carrier and a wheel hub has a transmission housing, which is provided with connecting means for the connection of the sprocket carrier to the transmission housing, as well as coupling means for coupling the transmission to the hub. The transmission further has a planetary gear set which is present in the transmission housing and is provided with three rotational members, of which a first rotation body is connected to the transmission housing, a second rotation body is connected to the coupling means, and a third rotation body can be coupled with the wheel axle. The first rotation body is connected via a first clutch to the second rotation body and the third rotation body is connected to a second clutch via which the third rotation body can be connected to the wheel shaft.

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 transmission gearing arrangement includes four simple planetary gear sets, three brakes, and four clutches. The transmission produces two reverse gear ratios and twelve forward speed ratios in response to engagement of the brakes in clutches in combinations of three. The transmission is suitable for use with a range selector. In a low range, one of the reverse ratios and all twelve of the forward ratios are utilized. In a high range, the other reverse ratio and eleven of the forward ratios are utilized.

Abstract: A planetary gear train of an automatic transmission for vehicles provides forward ten speed stages and one reverse speed stage. The planetary gear train includes: an input shaft; an output shaft; five planetary gear sets each having three rotation elements; three clutches; three brakes; and nine shafts. Some of the nine shafts may directly connect or selectively connect a plurality of rotation elements among the rotation elements via the clutches, and some of the nine shafts selectively connect selected rotation elements to a transmission housing H via the brakes. In particular, the selected rotation elements are not connected to another rotation element of the five planetary gear sets.

Abstract: An automobile automatic transmission axle assembly: A power input shaft extends into a transmission compartment; the power input shaft in the transmission compartment is provided with a transmission mechanism; the transmission mechanism comprises a transmission sliding sleeve assembly, modified isolators, gear-position sun gears, planet gears, a planet carrier and gear rings; the gear-position sun gears, planet gears and gear rings constitute a mechanism having a fixed transmission ratio; the transmission sliding sleeve assembly fits the modified isolators. The automobile automatic transmission axle assembly realizes an integrated automatic transmission axle for electric vehicle.

Abstract: Provided are a connecting module and a motion assistance apparatus including the same, the connecting module including a case provided to incline downward from a space recessed between a waist and a hip of a user to a hip joint of the user, a power transmitting assembly disposed in an internal portion of the case, and a supporting module connecting portion disposed at an output terminal of the power transmitting assembly and to be fastened with a supporting module that supports a leg of the user.

Abstract: A transmission gearing arrangement has four simple planetary gear sets and five or six shift elements. One embodiment has two brakes and three clutches and produces eight speeds by selective engagement of various combinations of three of the shift elements. A second embodiment has two brakes and four clutches and produces nine speeds by selective engagement of various combinations of four of the shift elements. A third embodiment has two brakes and four clutches and produces ten speeds by selective engagement of various combinations of four of the shift elements.

Abstract: A gearbox is provided comprising a planetary gearbox with a ring gear, sun wheel and planetary wheel carrier, on which at least one planetary wheel is mounted in a rotatable manner and is engaged via teeth with the ring gear and sun wheel; a first axially shiftable coupling sleeve, which in first gear position disconnects an input shaft to the gearbox from the planetary wheel carrier, and in a second gear position connects the input shaft with the planetary wheel carrier; and a second axially shiftable coupling sleeve, which in the first gear position connects a gearbox house surrounding the planetary gearbox with the ring gear, and in the second gear position disconnects the gearbox house from the ring gear. An axial stop, mounted on the planetary wheel carrier, abuts against and is connected with the ring gear and prevents the ring gear from shifting axially.

Abstract: A driving control system of an internal clutch comprises a cam; a first control unit for switching a power input to be from a planet gear frame or from an inner gear; the first control unit being by the cam through a first driving rod; a second control unit for controlling a sun gear to be at a power output state or at a releasing state; the second control unit being driven by the cam through a second driving rod; and a third control unit for controlling a power output to be from a planet gear frame or from an output power of an inner gear; the third control unit being driven by the cam through a third driving rod. The first, second and third driving rods are driven by the same cam so as to precisely control movements and moving sequence of the first, second and third control units.

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 from 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; a fifth planetary gear set including thirteenth, fourteenth, and fifteenth rotation elements. In addition, the planetary gear train includes nine shafts operably connected to at least of the rotation elements to provide ten forward speed stages and one reverse speed stage so that more efficient power delivery performance and smooth speed stage change are achieved.

Abstract: A transmission for a vehicle may include a first planetary gear set, a second planetary gear set, a third, planetary gear set, and a fourth planetary gear set each including three rotary elements, and a plurality of friction members, wherein the friction members are connected to at least one of the rotary elements of the planetary gear sets and control rotation of the rotary elements.

Abstract: Nine or more forward speeds and at least one reverse speed are achieved by a planetary gear train of an automatic transmission for a vehicle including an input shaft, an output shaft, three planetary gear sets respectively having three rotational elements, and six control elements for selectively interconnecting the rotational elements.

Abstract: In the active transportation mode of a motor vehicle, only the forward gears can be selected. The weakest shift element, in particular the weakest brake or clutch in an automatic transmission, always is closed in the forward gears. Preferably, manual shifting options in an electronically controlled automatic transmission with a manual mode are additionally suppressed.

Abstract: A traveling work vehicle includes a gear-shifting control unit that outputs a gear-shifting control command to a main gear-shifting apparatus for shifting gears without cutting off power transmission, a sub gear-shifting apparatus for shifting gears by cutting off power transmission, and a first operation unit and a second operation unit that provide gear-shifting, upshifting or downshifting, operation commands to the gear-shifting control unit. The gear-shifting control unit has a first travel control section that generates a gear-shifting control command for shifting gears in the main gear-shifting apparatus in response to the gear-shifting operation command from the first operation unit in a work traveling mode, and a second travel control section that generates a gear-shifting control command for shifting gears in the sub gear-shifting apparatus in response to the gear-shifting operation command from the second operation unit in the work traveling mode.

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, a first planetary gear set, a second planetary gear set, a third planetary gear set, six friction elements disposed to selectively connect rotation elements of the planetary gear sets with each other and selectively connect the rotation elements with a transmission housing, a first rotation shaft selectively connected to the input shaft, a second rotation shaft, a third rotation shaft selectively connected to at least one of the input shaft and the transmission housing, a fourth rotation shaft selectively connected to the second rotation shaft, a fifth rotation shaft selectively connected to the second rotation shaft, a sixth rotation shaft directly connected to the transmission housing, and a seventh rotation shaft selectively connected to the second rotation shaft, and directly connected to the output shaft.

Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft for receiving an engine torque, an output shaft for outputting a shifted torque, 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 shaft, a third shaft, a fourth shaft directly connected to the input shaft, a fifth shaft, a sixth shaft selectively connectable to the second shaft, a seventh shaft selectively connectable to the second shaft and the fifth shaft respectively, and an eighth shaft selectively connectable to the fifth shaft and directly connected to the output shaft.

Abstract: A planetary gear train of an automatic transmission for a vehicle is provided. In particular, nine or more forward speeds and one or more reverse speed are achieved by the planetary gear train of an automatic transmission for a vehicle. The gear set includes 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: A planetary multi-speed transmission for a vehicle with a housing is proposed. A first shaft provided as a drive (An) is axially parallel to a second shaft provided as an output (Ab). Three planetary gear sets, additional shafts, and six shifting elements are provided, through which the actuation of several gears are realized. Machine elements provide torque transfer between the drive (An) and the output (Ab). The first shaft is connectable to the planetary gear carrier of the third planetary gear set, to the ring gear of the first planetary gear set, to the sun gear of the second planetary gear set, to the ring gear of the third planetary gear set, to the ring gear of the second planetary gear set, and to the first machine element. The second shaft is connected or connectable to the first machine element and to the second machine element.

Abstract: A gear unit for a compound transmission has a planetary stage that couples an input and an output shaft for different transmission ratios. The planetary stage includes a sun gear, a ring gear and planet gears rotatably supported at a planet carrier. The planet gears have a region with two different toothings arranged axially offset with respect to an axis of rotation of the planetary stage. A meshing engagement with a first sun gear and/or a first ring gear is produced via the first toothing. The planet gears mesh at the second toothing with a second sun gear and/or a second ring gear, and one component of the planetary stage is connected to the input shaft to be fixed with respect to rotation and one component is fixed at a housing, while the rest of the components can be coupled with the output shaft, respectively.

Abstract: Planetary gear systems, transmissions, and apparatuses include at least one non-fixed annular gear, at least one non-fixed sun gear, at least one compound planet gear meshed between the at least one non-fixed annular gear and the at least one non-fixed sun gear, and at least one fixed gear meshed with the at least one compound planet gear. Rotational input to one of the at least one non-fixed annular gear and the at least one non-fixed sun gear results in an opposite rotational output of the other of the at least one non-fixed annular gear and the at least one non-fixed sun gear.

Abstract: A multi-stage planetary gearbox, in particular a torque split gearbox of a work machine, having a housing which accommodates four planetary gearsets, a plurality of shafts, and shift elements including brakes and clutches which implement different gear ratios between the drive and output shafts. The drive shaft couples a carrier of the third gearset which can couple, via a first clutch, a third shaft that is coupled to a ring gear of a second gearset and which can be connected, via a second clutch, to a fourth shaft connected to a sun gear of the third gearset. A fifth shaft couples a sun gear of the second gearset and can be locked, via a first brake, with the housing. A sixth shaft couples a ring gear of the third gearset and a carrier of the second gearset. The output shaft is coupled to a carrier of a fourth gearset.

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. Three simple planetary gear sets are located on the input axis. One of the simple planetary gear sets may have either a split-ring arrangement in which two ring gears are provided with one carrier and one sun gear, or a split-sun arrangement in which two sun gears are provided with one carrier and one ring gear.

Abstract: A two-step multi-step transmission in which a first planetary gear set (1) has two radially nested transmission sub-assemblies. The first planetary gearset has an inner sun gear (11), inner planetary gears (12), an outer sun gear (14) which is rotationally fixed to the inner ring gear (13), outer planetary gears (15), an outer ring gear (16), and a carrier (17) on which the inner planetary gears (12) and the outer planetary gears (15) are mounted. The inner ring gear (13) and the outer sun gear (14), respectively, are rotationally fixed to a second, traditionally designed planetary gear set (2) and can be locked via a brake (42).

Abstract: A multi-stage transmission with eight forward and one reverse gear, including input and output shafts, planetary gearsets, gear stages, shift elements and shafts. Input shaft couples the carrier of gearset (P1) and, via clutch (15), can couple shaft (5) that couples the ring and sun gears respectively of gearsets (P2, P3). The ring gear of gearset (P1) couples shaft (6), which couples the sun gear of gearset (P2). Shaft (3) couples the sun gear of gearset (P1), can couple the housing via brake (03), and can couple shaft (8), which couples the ring gear of gearset (P3). The carrier of gearset (P2) couples shaft (4), which can couple the output shaft (2) via gear stage (S1) and clutch (24). The carrier of gearset (P3) couples shaft (7), which couples gear stage (S2), which couples the output shaft. A clutch (46, 56 or 45) can engage to block gearset (P2).

Abstract: A control apparatus for an automatic transmission includes a running condition detector and a controller. a plurality of gear change stages include at least one specific gear change stage that has a specific transmission gear ratio, that involves at least one necessary engagement mechanism which needs to be engaged in order to obtain the specific transmission gear ratio, and that involves at least one no-change engagement mechanism which causes no change in the specific transmission gear ratio. Both of the at least one necessary engagement mechanism and the at least one no-change engagement mechanism are engaged during a time period from a timing to begin an operation to change a gear change stage to the specific gear change stage until a timing to complete the operation. The at least one no-change engagement mechanism is released after the timing to complete the operation.

Abstract: A transmission gearing arrangement produces nine forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. Some embodiment includes four simple planetary gear sets and six shift elements of which one is a brake. Another embodiment includes two axis transfer gear pairs in place of one of the planetary gear sets.

Abstract: The transmission has four planetary gear sets and shafts and shift elements. Sun gear of the planetary gearset (P1) couples shaft (5) which couples ring gear of gearset (P3) and is connectable, via clutch (58), to shaft (8), which couples carrier of gearset (P2) and is connectable, via clutch (89), to shaft (9), which couples sun gears of gearsets (P3, P4). Carrier of gearset (P1) couples drive shaft (1), which is connectable, via clutch (16), to shaft (6), which couples ring gear of gearset (P2). Sun gear of gearset (P2) couples shaft (3), which couples carrier of gearset (P3) and is connectable to the housing via brake (03). Ring gear of gearset (P4) couples shaft (4) which is connectable to the housing via brake (04). Output shaft (2) couples carrier of gearset (P4) and is connectable, via clutch (27), to shaft (7) which couples ring gear of gearset (P1).

Abstract: A multi-ratio transmission system with parallel vertical and coaxial planet gears is provided, including: multiple planet gear sub-systems, a coupling assembly, a setting element, a setting element controller and an annular gear. The planet gear sub-systems are disposed coaxially in series along a first axis. Each of the planet gear sub-system includes a sun gear and at least one planet gear. The coupling assembly is disposed between every two adjacent planet gear sub-systems so as to transmit the rotation. The setting element is disposed corresponding to each planet gear sub-system to optionally engage with the sun gear of the planet gear sub-system. The setting element controller is connected to the setting element of each planet gear sub-system to optionally move the setting element of the planet gear sub-system. The annular gear is engaged to the planet gear of at least one planet gear sub-system.

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 transmission is has an input member, an output member, a first planetary gear set assembly, a second planetary gear set assembly, a plurality of coupling members and a plurality of torque transmitting devices. The second planetary gear set assembly is a stacked planetary gear set having a first, a second, a third, a fourth and a fifth member and the first planetary gear set assembly has a first, a second, a third and a fourth member. The torque transmitting devices include clutches and brakes.

Abstract: A transmission includes epicyclic gearing including first, second, third and fourth gearsets, each gearset including first, second and third members; a first member of the first gearset and a first member of the second gearset being secured against rotation; and clutches, each clutch selectively opening and closing a drive connection between members of the gearsets.

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 three clutches and four brakes actuatable in combinations of three to establish a plurality of forward gear ratios and one reverse gear ratio.

Abstract: A gear assembly for a motor vehicle includes first clutch configured to selectively couple an input shaft to an output shaft and a second clutch configured to selectively couple the input shaft to a planetary gear train. When the first clutch is activated and the second clutch is not activated, the input torque is transmitted from the input shaft to the output shaft such that the output torque relative to the input torque is a first gear ratio. When the second clutch is activated and the first clutch is not activated, the input torque is transmitted from the input shaft to the output shaft through the planetary gear train such that the output torque relative to the input torque is a second gear ratio. When neither the first clutch nor the second clutch are activated, the input torque is not transmitted from the input shaft to the output shaft.

Abstract: A distortion compensation device includes: a frequency-characteristic adding unit configured to add a frequency characteristic to an error signal to generate an added error signal, the error signal being a difference between an input signal input to an amplifier and an output signal output from the amplifier; a distortion-compensation-coefficient updating unit configured to update a distortion compensation coefficient for compensating for a distortion characteristic of the amplifier based on the added error signal; and a distortion compensation unit configured to perform distortion compensation on the input signal using the updated distortion compensation coefficient.

Abstract: A multi-step transmission having a housing which accommodates eight shafts and four planetary gear sets, and at least six shift elements including brakes and clutches which are engaged to implement different ratios between a drive shaft and output shaft. The carrier of gearset (4) is connected to shaft (14) which is connectable, via brake (8), to the housing and, via clutch (11), to shaft (15) which is coupled to the ring gear of gearset (6). The shaft (16) connects the ring gear of gearset (5) to the sun gear of gearset (6) and is couplable, via a clutch (12), to the output shaft. The shaft (17) is connected to the ring gear of gearset (4) and the drive shaft is connectable, via clutch (13), to shaft (14) and is coupled to the carrier of gearset (5).

Abstract: A planetary gear train of an automatic may include an input shaft, an output shaft, a first planetary gear set having a first, second and third rotation elements, the first selectively connected to the input shaft, a second planetary gear set having a fourth, fifth and sixth rotation elements, the fourth directly connected to the second rotation element and the fifth directly connected to the input shaft, a compound planetary gear set having seventh, eighth, ninth and tenth rotation elements, the seventh selectively receiving the speed of the input shaft from the fifth, the eighth selectively receiving increased speed from the sixth, the ninth directly connected to the output shaft, and the tenth selectively connected to the input shaft, eight rotation members consisting of at least one of the rotation elements and six friction members.

Abstract: A multi-ratio transmission system with parallel vertical and coaxial planet gears is provided, including: multiple planet gear sub-systems, a coupling assembly, a setting element, a setting element controller and an annular gear. The planet gear sub-systems are disposed coaxially in series along a first axis. Each of the planet gear sub-system includes a sun gear and at least one planet gear. The coupling assembly is disposed between every two adjacent planet gear sub-systems so as to transmit the rotation. The setting element is disposed corresponding to each planet gear sub-system to optionally engage with the sun gear of the planet gear sub-system. The setting element controller is connected to the setting element of each planet gear sub-system to optionally move the setting element of the planet gear sub-system. The annular gear is engaged to the planet gear of at least one planet gear sub-system.

Abstract: A transmission includes a first motor/generator with a first rotor connected for rotation with a first member of a first planetary gear set. A second electric motor/generator has a second rotor connected for rotation with a second member of the first planetary gear set. The second member of the first planetary gear set is connected for common rotation with the output member. The first member of a second planetary gear set rotates with the input member, and the third member of the second planetary gear set is grounded to a stationary member. A first torque-transmitting mechanism establishes torque flow between the first member of the second planetary gear set and the third member of the first planetary gear set. A second torque-transmitting mechanism establishes torque flow between the second member of the second planetary gear set and the third member of the first planetary gear set.