Abstract: The transmission is constructed with a first ring gear and a third ring gear that are firmly connected. A second ring gear and a third carrier are also firmly connected. A second sun gear and a third sun gear are also firmly connected. An input shaft is connectable to a first carrier via a first clutch. The input shaft is connectable to a first sun gear via a second clutch. A third clutch is disposed between the first carrier and a second ring gear. The first carrier is connectable to the second ring gear and the third carrier via the third clutch. A first brake is provided between the first sun gear and a transmission case. A second brake is provided between the transmission case and the first ring gear as well as the third ring gear. A third brake and a one-way clutch are provided in parallel between the first carrier and the transmission case. A fourth brake is provided between the transmission case and the second sun gear as well as the third sun gear.

Abstract: The invention relates to a multi-step gear, comprising a drive shaft (1) linked with a front-mounted gear train (VS), an output shaft (2) linked with a rear-mounted gear train (NS), and maximally seven shift elements (A, B, C, D, E, D?, A?) through the selective shifting of which at least seven forward gears can be shifted without group shifts. The front-mounted gear train (VS) is formed by a front-mounted planetary gear (VS1) or maximally two non-shiftable front-mounted planetary gears (VS2) coupled with the first front-mounted planetary gear (VS1). The rear-mounted gear train (NS) is configured as a two-stage/four-shaft transmission with two shiftable rear-mounted planetary gears (NS1, NS2) and four free shafts. The first free shaft of said two-stage/four-shaft transmission is linked with the first shift element (A), the second free shaft with the second and third shift elements (B, C), the third free shaft with the fourth and fifth shift element (D, E) and the fourth free shaft with the output shaft (2).

Abstract: A multi-step gear including a drive shaft linked with a non-shiftable front-mounted gear train, an output shaft linked with a shiftable rear-mounted gear train with four free shafts, and shift elements for selective shifting without group shifts. The first free shaft of the rear gear train is linked with a first shift element, the second free shaft with second and third shift elements, the third free shaft with fourth and fifth shift elements and the fourth free shaft with the output shaft. With six shift elements, the first or third free shaft of the rear-mounted gear is additionally linked with a sixth shift element. With seven shift elements, the third free shaft is additionally linked with a sixth shift element and the first free shaft is additionally linked with a seventh shift element.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide six forward speed ratios and a reverse speed ratio. The transmission family members include three planetary gear sets having five torque-transmitting mechanisms, two fixed interconnections, and one grounded planetary gear member. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The five torque-transmitting mechanisms provide interconnections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of two to establish six forward speed ratios and one reverse speed ratio.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having seven torque-transmitting mechanisms and three fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The seven torque-transmitting mechanisms provide interconnections between various gear members and the transmission housing, and are operated in combinations of two to establish at least eight forward speed ratios and at least one reverse speed ratio.

Abstract: A transmission assembly includes a stationary housing and a first section having a coupling member. The first section further includes a first planetary gear assembly, a second planetary gear assembly, and a third planetary gear assembly operatively disposed in the stationary housing. Each of the planetary gear assemblies includes a ring gear, at least one planet carrier having at least one planet gear, and a sun gear. The sun gears of at least the first and second planetary gear assemblies are operatively connected to the coupling member. The first section also includes an input member operatively connected to the third planetary gear assembly to drive the first section. A first stationary clutch operatively connects the coupling member to the stationary housing. A second stationary clutch operatively connects at least one of the planet carrier and the ring gear of the first planetary gear assembly to the stationary housing.

Abstract: A motor vehicle transmission having seven forward speeds and one reverse gear containing an input drive shaft (1) and an output drive shaft (2) that are arranged in a housing (G); three single-carrier planetary gear sets (P1, P2, P3); six rotatable shafts (1, 2, 3, 4, 5, 6); and six shifting elements (03, 04, 05, 14, 15, 45, 24), encompassing brakes (03, 04, 05) and clutches (14, 15, 24, 45); the input drive shaft (1) being continuously connected to the sun gear of the second planetary gear set (P2) and being connectable via a clutch (14) to the carrier of the first planetary gear set (P1) and being connectable via a clutch (15) to the shaft (5) which on the one hand is continuously connected to the sun gear of the first planetary gear set (P1) and on the other hand is couplable via a brake (05) to the housing (G); the output drive shaft (2) being continuously connected to the carrier of the third planetary gear set (P3) and to the ring gear of the first planetary gear set (P1).

Abstract: A multiple speed transmission capable of producing five underdrive gear ratios, one direct drive ratio, four overdrive ratios, and four reverse ratios includes four interconnected planetary gearsets, multi-plate clutches and brakes controlling the gearset elements, and a coupler that changes between forward drive and reverse drive by holding and releasing alternate gearset components against rotation on the transmission case. The transmission in combination with a single-speed transfer case having either an on-demand transfer clutch, or a full-time all-wheel drive system, are formed in an integrated package.

Abstract: A compact longitudinal transmission has an input shaft rotatably supported in a front end wall, an output shaft rotatably supported in a rear end wall, and a housing interconnecting the front end wall and the rear end wall. Three planetary gearsets disposed within the housing are controlled by five torque-transmitting mechanisms including four friction disc or plate mechanisms and one band mechanism. The band mechanism being disposed radially outboard of the rearmost one of the planetary gearsets.

Abstract: A planet gear carrier for a bicycle hub transmission comprises a first carrier member including a first carrier member axle opening for receiving an axle therethrough. The first carrier member includes plurality of first planet gear openings disposed on a first side of the first carrier member and a plurality of second planet gear openings disposed on a second side of the first carrier member. A separate second carrier member is fastened to the first side of the first carrier member, wherein the second carrier member has a second carrier member axle opening for receiving the axle therethrough. A separate third carrier member is fastened to the second side of the first carrier member, wherein the third carrier member has a third carrier member axle opening for receiving the axle therethrough.

Abstract: A planetary gear assembly comprising a primary array (2) of co-axial planetary gear sets and a secondary array (3) of co-axial planetary gear sets, planetary gear set being provided with an associated gear engagement means (21), the arrangement being such that in use each planetary gear set and the associated gear engagement means are arranged for relative translational movement which is substantially parallel to the axis of the respective array of planetary gears and a rotational input drives a selected primary gear set which is engaged with the associated gear engagement means, the rotational output of the engaged primary gear set (2) being transmitted through the associated gear engagement means (21) to gear engagement means which is engaged with the associated selected secondary gear set (3), the output from the selected secondary gear set being transmitted to rotational output means (18, 49).

Abstract: The transmission is constructed with a first ring gear and a third ring gear that are firmly connected. A second ring gear and a third carrier are also firmly connected. A second sun gear and a third sun gear are also firmly connected. An input shaft is connectable to a first carrier via a first clutch. The input shaft is connectable to a first sun gear via a second clutch. A third clutch is disposed between the first carrier and a second ring gear. The first carrier is connectable to the second ring gear and the third carrier via the third clutch. A first brake is provided between the first sun gear and a transmission case. A second brake is provided between the transmission case and the first ring gear as well as the third ring gear. A third brake and a one-way clutch are provided in parallel between the first carrier and the transmission case. A fourth brake is provided between the transmission case and the second sun gear as well as the third sun gear.

Abstract: A vehicle planetary gear type multiple-step transmission wherein each of five rotary elements is constituted by sun gears, carriers and ring gears of three planetary gear sets, and speeds of the rotary elements are represented by respective straight lines in a collinear chart, and the first, second and third rotary elements are made stationary by respective first, second and third brakes, and the fifth, third and first rotary elements are connected to an input shaft by respective first, second and third clutches, while the third rotary element is brought to a disconnected state by fourth clutch, and the fourth rotary element is connected to an output rotary member.

Abstract: An automatic transmission of a motor vehicle includes first, second and third planetary gear sets, two clutches and three brakes. A first-speed gear stage having the largest gear ratio is established when the first clutch and the first brake are engaged, a second-speed gear stage is established when the first clutch and the second brake are engaged, a third-speed gear stage is established when the first clutch and the third brake are engaged, a fourth-speed gear stage is established when the first clutch and the second clutch are engaged, a fifth-speed gear stage is established when the second clutch and the third brake are engaged, a sixth-speed gear stage is established when the second clutch and the second brake are engaged, and a seventh-speed gear stage is established when the second clutch and the first brake are engaged.

Abstract: The family of six-speed planetary transmissions incorporates three planetary gearsets and five torque-transmitting mechanisms, which are engaged in combinations of two to establish at least six forward speeds and one reverse speed within the planetary transmission. The five torque-transmitting mechanisms are comprised of three rotating type torque-transmitting mechanisms (clutches) and two stationary type torque-transmitting mechanisms (brakes). Each of the three planetary gearsets has three members with a first member of the first planetary gearset being continuously interconnected with a first member of the second planetary gearset. A second member of the first planetary gearset is continuously interconnected with a first member of the third planetary gearset. A second member of the second planetary gearset is continuously interconnected with a second member of the third planetary gearset. The input shaft and output shafts are continuously connected with selected members of the planetary gearsets.

Abstract: A speed-reducing gear unit is provided for causing a reduced-speed rotation output member to have a reduced rotation that is slower than rotation of an input shaft. The reduced-speed rotation output member is switched between a reduced-speed rotation state and a free rotation state by rotation state switching means. The reduced-speed rotation of the reduced-speed rotation output member is selectively transferred to fourth and first elements of a speed-changing dual planetary gear unit via first and third control clutches. The rotation of the input shaft is transferred to a second element via a second control clutch. Rotations of the first and second elements are selectively restricted by first and second control brakes. A third element is connected to an output shaft.

Abstract: A multi-speed transmission having an input shaft driven by the engine, an output shaft connected to the driveline, an electric motor, a planetary geartrain driven by one or both of the engine and the electric motor, a plurality of power-operated clutches operable for selectively engaging components of the planetary geartrain, and a control system for controlling automated operation of the power-operated clutches and coordinated actuation of the engine and the electric motor.

Abstract: A hybrid transmission includes a multi-speed planetary gearbox, an automated shift system, and an electric motor/generator. The electric motor is operably controlled to drive the gearbox to establish an electric drive mode. The electric mode is further operable to provide a speed synchronization function during sequential gear shifting. The transmission includes plurality of power-operated clutches arranged to selectively engage components of the planetary geartbox to establish the distinct gear ratios. A central system functions to control automated operation of the power-operated clutches as well coordinated actuation of the engine and the electric motor.

Abstract: A family of transmission mechanisms having at least six forward speeds wherein each family member includes three planetary gearsets, five torque transmitting mechanisms, and three interconnecting members. The planetary gear sets each have three members (sun gear member, ring gear member, and planet carrier assembly member). The interconnecting members provide continuous interconnection between the members of the planetary gearsets. An output shaft is continuously interconnected with at least one member of one of the planetary gearsets. An input shaft is selectively interconnectable with members of the planetary gearsets through three of the torque transmitting mechanisms (clutches). The two other torque transmitting mechanisms (clutches or brakes) selectively interconnect members of the planetary gear sets or selectively interconnect a housing with at least one member of the planetary gearsets.

Abstract: The powertrain of a six-speed powertrain and a hydraulic control system includes a main shift section of first and second single pinion planetary gearsets, in which a first planet carrier is fixedly connected to a second ring gear. The powertrain also includes a first ring gear fixedly connected to a second planet carrier, and a first sun gear. The second planet carrier, and a second sun gear are variably connected to an input shaft through first, second, and third clutches, respectively. A connecting member connecting the first ring gear and the second planet carrier is variably connected to a housing through a first brake and a first one-way clutch. The second sun gear being variably connected to the housing by a second brake.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least five forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets, two clutches and two brakes. The powertrain includes an engine and torque converter that is continuously connected with at least one member of the third planetary gear set and an output member that is continuously connected with another member of the third planetary gear set. The two clutches and two brakes provide interconnections between various gear members, the transmission housing, and with the input and the output shaft, and are operated in combinations of two to establish at least five forward speed ratios and one reverse speed ratio.

Abstract: A multi-speed transmission having an input shaft driven by the engine, an output shaft connected to the driveline, an electric motor, a planetary geartrain driven by one or both of the engine and the electric motor, a plurality of power-operated clutches operable for selectively engaging components of the planetary geartrain, and a control system for controlling automated operation of the power-operated clutches and coordinated actuation of the engine and the electric motor.

Abstract: A rear wheel hub and chainless drive train gear assembly for use on a bicycle having an axle bracket fixed to the frame of the bicycle, a spindle extending axially through the axle bracket and left and right pedal crank arms for rotating the spindle upon application of a pedaling force. A primary drive gear fitted to the spindle drivingly engages carrier gears which operate a planet gear cage housing and a multiple planetary gear and sun gear arrangement according to various gear ratios determined by selective operation of a clutch assembly. Planetary gear groups each include an integral set of planetary gears of varying size which mesh with corresponding sun gear rings. Operation of the clutch assembly serves to selectively engage pawl stops with a corresponding sun gear ring, thereby engaging the corresponding sun gear ring with one of the planetary gears of the planetary gear groups according to a selected gear ratio.

Abstract: The invention relates to a multispeed gearshift mechanism for bicycles. The gearshift mechanism contains a shaft (1), which can be mounted, fixed against relative rotation, on a bicycle frame, an actuator (7), rotatably seated on the shaft (1), a shell (12), rotatably seated on the shaft (1), and a gearshift mechanism, which is provided with a first and a second planetary gear (15, 16) and is arranged in the shell (12) for making available several gear ratios between the actuator (7) and the shell (12). The planetary gears (15, 16) have at least respectively two sun wheels (19, 20, or respectively 22, 23), which are coaxial in relation to the shaft (1) and which can be selectively connected by means of a shifting device with the shaft (1).

Abstract: A multiple speed transmission for motor vehicles includes three simple planetary gearsets, and hydraulically actuated friction clutches and brakes for controlling operation of the gearsets and altering the torque delivery path between an input shaft and an output shaft. A friction brake is provided for operation in reverse drive to share the torque reaction with another friction brake. The transmission is suited to produce six or seven forward speed ratios and a reverse drive ratio.

Abstract: A four-speed automatic transmission for a vehicle includes a transmission housing, an input member, an output member, three planetary gearsets for changing a ratio of torque between the input member and the output member, a plurality of clutch assemblies to selectively couple the input member to predetermined gears of the planetary gearsets, a plurality of brake assemblies to selectively couple predetermined gears of the planetary gearsets to the transmission housing, and a structure for allowing the output member and a planetary carrier from one of the planetary gearsets and an annulus gear of another of the planetary gearsets to rotate simultaneously.

Abstract: A 5-speed automatic transmission for a vehicle having a highly efficient top gear, a compact construction and a wide overall range of gear ratios. The automatic transmission has a speed changer which provides five gear stages, namely two speeds on the speed decreasing side and two speeds on the speed increasing side with a direct-coupled gear therebetween. The speed changer includes a ring gear connected to an output shaft, a first carrier, a first sun gear, a second carrier connected to the first carrier, a stepped pinion gear supported by these two carriers, and a sun gear meshing with the pinion gear. The first carrier is connected to an input shaft by a clutch and the first sun gear is connected to the input shaft by a clutch. The first sun gear may be stopped by a first brake, a second brake stops the second sun gear and a third brake is provided to stop a third sun gear. Top gear is achieved by meshing of the pinion gear with the second sun gear and the ring gear.

Abstract: 056431307A disclosed power train of an automatic transmission for a vehicle, which includes a device for making a continuous shifting operation in the low speed region, directly connecting the power train with the output shaft of the engine so as to reduce the shifting shock impulses, and reducing the number of the one-way clutches so as to simplify the whole structure.

Abstract: A four speed automatic transmission for a vehicle includes a transmission housing, an input member, an output member, three planetary gearsets for changing a ratio of torque between the input member and the output member, a plurality of clutch assemblies to selectively couple the input member to predetermined gears of the planetary gearsets, a plurality of brake assemblies to selectively couple predetermined gears of the planetary gearsets to the transmission housing, and a structure for allowing the output member and a planetary carrier from one of the planetary gearsets and an annulus gear of another of the planetary gearsets to rotate simultaneously.

Abstract: A planetary gear transmission typically for use on automobiles has first, second, and third planetary gear trains arranged coaxially with each other and each having elements including a sun gear, a carrier, and a ring gear. Two of the elements of each of the first, second, and third planetary gear trains are directly or disengageably coupled to elements of the other planetary gear trains. The transmission also has three clutch means and two brake means for selectively establishing a power transmitting path from an input shaft to an output gear member through the first, second, and third planetary gear trains. At least one of the first, second, and third planetary gear trains comprises a double-pinion planetary gear train, one of the sun gear and the carrier of the double-pinion planetary gear train being coupled to the input shaft and the other being nonrotatably fixed.

Abstract: A multiple speed transmission for use in an automotive vehicle driveline includes a torque converter and three simple planetary gear units, one-way clutches and brakes, friction clutches, and friction brakes. The engaged and disengaged state of the friction elements permit the transmission to produce several underdrive speed ratios, a direct drive ratio and several overdrive ratios. The transmission output shaft is geared to produce a direct drive connection to the spindle of an axle differential, which drives wheels fixed to the axle shafts.

Abstract: An automatic transmission for use with an automotive vehicle having an engine provided with an output shaft, and a differential. The automatic transmission comprises a casing, and first, second and third shafts arranged in the casing. The first shaft is concentrical with the engine output shaft. The second shaft is parallel with the first shaft. The third shaft is concentrical with the second shaft. The third shaft is connected to the differential. A first transfer gear train is provided for transmitting rotation from the first shaft to the second shaft. The automatic transmission also comprises a main transmission unit including planetary gearing having rotary members for providing a plurality of torque delivery paths between the second and third shafts, and friction elements associated with the planetary gearing for selecting one of the torque delivery paths in response to a selected gear position. The planetary gearing is provided on the second shaft.

Abstract: A planetary gear transmission for use on automobiles includes an input shaft, an output gear, and three planetary gear trains disposed coaxially with each other and each having a sun gear element, a carrier element, and a ring gear element, two of the elements of each of the planetary gear trains being mechanically coupled to elements of the other planetary gear trains for rotation therewith. The elements which are mechanically coupled to each other provide first through fifth rotating members, the first and fifth rotating members being coupled to the input shaft, one of the second and third rotating members being coupled to the output gear, the fourth rotating member being coupled to the output gear. The planetary gear transmission also has a separating clutch disposed between the elements of the third rotating member, for selectively engaging and disengaging the elements of the third rotating member.

Abstract: An automatic transmission including gear trains, which are constructed of at least three planetary gear sets each having three rotating members. A first clutch is arranged closer to an input shaft than the first planetary gear set for connecting any one of the rotating members of the first planetary gear set arranged adjacent to the input shaft. A second clutch is also arranged closer to the input shaft than the first planetary gear set for connecting another of the rotating members of the first planetary gear set and the input shaft. A third clutch is interposed between the first planetary gear set and the second planetary gear set for connecting any one of the rotating members of the second planetary gear set arranged at the opposite side to the input shaft across the first planetary gear set and the any one or the another of the rotating members of either one of the first clutch and the second clutch or the first planetary gear set.

Abstract: A vehicle transmission including a first, a second and a third planetary gear unit coaxially disposed between an input and an output member. The three units have respective first, second and third sun gears, respective first, second and third planetary gears, respective first, second and third carriers, and respective first, second and third ring gears. The first carrier, second ring gear, third sun gear and output members are connected to each other, while the second carrier and the third ring gear are connected to each other.

Abstract: An enclosed multiple speed drive for a tandem bicycle locates the pedal drive shaft for the rear rider on the axis of the rear wheel. The drive features a chain case which replaces the chain stay on the right side of the bicycle and an improved ten speed planetary transmission housed within a gear case inside the rear wheel hub. The chain case is press fit on a steel tube rotatably mounted in the bottom bracket, and a chain case cover on the right side, and a sun gear carrier on the left side, are clamped in the rear dropouts with over center quick releases. To change the rear tire, the chain case cover and the sun gear carrier are released from the dropouts and the chain case is rotated about the axis of the bottom bracket to swing the wheel clear of the frame. The tire can then be peeled off the rim from the left side and replaced without removing the wheel from the gear case or disturbing any of the drive train components.