Abstract: A family of transmissions wherein each family member has an input shaft, an output shaft, three planetary gear sets, and five rotating torque transmitting mechanisms (clutches). A first and second of the planetary gear sets have continuously interconnected first and second members through a interconnecting member, and the second members are continuously connected with a stationary housing. The third planetary gear set has a first member connected with the input shaft and a second member is connected with the output shaft. Five selectively engageable clutch mechanisms are interconnectable between members of the planetary gearsets, the input shaft, and the output shaft. The clutches are engaged in combinations of two to establish six forward speed ratios and one reverse ratio.

Abstract: A powertrain includes an engine and torque converter, a planetary transmission, and a final drive mechanism. The planetary transmission is selected from a family of transmissions wherein each family member has a first, a second, and a third planetary gear set; and each planetary gear set has a first, a second, and a third member. All of the family members have five torque transmitting mechanisms of the rotating type commonly named clutches. Each of the first members of the first and second planetary gear sets is continuously connected with a stationary portion of the transmission, and each of the first members of the third planetary gear set and the second member of the second planetary gear set are interconnected for common rotation by a connecting member. The input shaft is continuously connected with a member of one of the planetary gear sets, and the output shaft is continuously connected with another member of the planetary gear sets.

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

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and two fixed interconnections. Also, one planetary gear member is continuously connected with the transmission housing. 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 at least one of the planetary gear members. The six 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 at least seven forward speed ratios and at least one reverse speed ratio.

Abstract: The family of transmissions has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having six torque-transmitting mechanisms and two fixed interconnections. Also, one planetary gear member is continuously connected with the transmission housing. The powertrain includes an engine and torque converter that is not continuously connected to any of the planetary gear members and an output member that is continuously connected with at least one of the planetary gear members. The six torque-transmitting mechanisms provide interconnections between various gear members and with the input shaft, output shaft, and transmission housing, and are operated in combinations of three to establish at least seven forward speed ratios and one reverse speed ratio.

Abstract: A family of power transmissions which are utilized in a powertrain include three planetary gearsets and five torque-transmitting mechanisms. The torque-transmitting mechanisms are engaged in combinations of three to provide a reverse drive ratio and six forward speed ratios. The torque-transmitting mechanisms will include at least four rotating type torque-transmitting mechanisms and, in some instances, one stationary type torque-transmitting mechanism. The planetary gearsets are of either the single pinion type or of the double pinion type of planetary gearsets.

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 and four clutches. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. At least one member of the first and second planetary gear sets is continuously connected with the transmission housing. The four clutches provide interconnections between various gear members 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: 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, and four torque transmitting mechanisms. The fourth torque transmitting mechanism may be either a brake or a fourth clutch. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. At least one other planetary gear member is continuously connected with the transmission housing. The three clutches and torque transmitting mechanism provide interconnections between various gear members and with the input, the output shaft, or the transmission housing, in some instances, and are operated in combinations of two to establish at least five forward speed ratios.

Abstract: A family of transmissions has three planetary gear sets controlled by five torque transmitting mechanisms that are selectively operable to provide six forward speed ratios and a reverse ratio between an input shaft and an output shaft. The planetary gear sets may be of the single or double pinion gear type and each include three members such as a sun gear member, a ring gear member and a planet carrier assembly member. First and second members of the first planetary gear set are continuously connected with respective first and second members of the second planetary gear set. A first member of the third planetary gear set is continuously connected to a stationary component. The input shaft is continuously connected to at least one member of one of the planetary gear sets and the output shaft is connected to at least one member of one of the planetary gear sets.

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 and four clutches. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. At least one other planetary gear member is continuously connected with the transmission housing. The four clutches provide interconnections between various gear members and with the input and the output shaft, and are operated in combinations of two to establish at least five forward speed ratios.

Abstract: A powertrain incorporates three planetary gear sets and five rotating torque transmitting mechanisms in a compact structure having minimum mechanical content to provide at least six forward speed ratios and a reverse ratio between an input shaft and an output shaft. One of the planetary gear sets has three rotatable members with one member continuously connected with the input shaft, another member continuously connected with the output shaft and a further member that is non-continuously interconnected. Another and a further of the planetary gear sets each has three members with respective first members being continuously interconnected and respective second members being continuously interconnected through first and second continuous interconnections, respectively. The third member of the other planetary gear set is non-continuously connected and the third member of the further planetary gear set is continuously connected with a stationary member such as a transmission housing.

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 and four clutches. The powertrain includes an engine and torque converter that is continuously connected to at least one member of the planetary gear arrangement and an output member that is continuously connected with another of the planetary gear members. At least one member of the first and second planetary gear sets is continuously connected with the transmission housing. The four clutches provide interconnections between various gear members 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 primary shift portion has a first predetermined speed ratio at a first shift-speed, a second predetermined speed ratio at a second shift-speed, a speed ratio of “1” at third and fifth shift-speeds, and a third predetermined speed ratio at fourth and sixth shift-speeds. A secondary shift portion has a predetermined reduction speed ratio at first, second, third, and fourth shift-speeds, and a speed ratio of “1” at fifth and sixth shift-speeds. The method realizes a 6-speed automatic transmission being capable of sequentially up- and down-shifting and a plurality of skip shifts with an existing 5-speed automatic transmission.

Abstract: A powertrain includes an engine and torque converter, a planetary transmission, and a final drive mechanism. The planetary transmission is selected from a family of transmissions wherein each family member has a first, a second, and a third planetary gear set; and each planetary gear set has a first, a second, and a third member. All of the family members have five torque transmitting mechanisms of the rotating type commonly named clutches. Each of the first members of the first and second planetary gear sets is continuously connected with a stationary portion of the transmission, and each of the first members of the third planetary gear set and the second member of the second planetary gear set are interconnected for common rotation by a connecting member. The input shaft is continuously connected with a member of one of the planetary gear sets, and the output shaft is continuously connected with another member of the planetary gear sets.

Abstract: A family of transmissions wherein each family member has an input shaft, an output shaft, three planetary gear sets, and five rotating torque transmitting mechanisms (clutches). A first and second of the planetary gear sets have continuously interconnected first and second members through a interconnecting member, and the second members are continuously connected with a stationary housing. The third planetary gear set has a first member connected with the input shaft and a second member is connected with the output shaft. A first clutch selectively interconnects a third member of the first planetary gear set with the third member of the third planetary gear set, the input shaft, or the output shaft. A second clutch selectively interconnects the interconnecting member with the third member of the third planetary gear set, the input shaft, or the output shaft.

Abstract: A transmission system provided for a bicycle, including a primary transmission sub-assembly having a set of rear sprockets, whose number of teeth, from one sprocket to the next sprocket in the ascending order, varies according to a ratio of the numbers of teeth that is greater than or equal to a value n such as n greater than 1. The invention also includes a control of the transmission system, as well as a bicycle that includes the transmission system and the control for same. The transmission system includes a single chain wheel for driving the chain, associated with a bottom bracket assembly, and a secondary transmission sub-assembly having at least two drive output ratios, whose ratio of the highest drive speed to the lowest drive speed is equal to a value R between 1 and n so as to introduce at least one intermediate transmission ratio between two successive sprockets.

Abstract: A family of power transmissions, which are utilized in a powertrain, include three planetary gearsets and five torque-transmitting mechanisms. The torque-transmitting mechanisms are either five rotating type torque-transmitting mechanisms or four rotating type torque-transmitting mechanisms and one stationary type torque-transmitting mechanism. Each of the three planetary gearsets all include three members represented by a sun gear member, a ring gear member, and planet carrier assembly member. The planet carrier assembly member may be of either the single pinion or double pinion. In each of the family members, at least four of the planetary members are interconnected continuously with either another planetary member, the input shaft, the output shaft, or a stationary housing of the transmission. At least four of the planetary members are noncontinuously interconnected with another planetary member, the input shaft, the output shaft, or the stationary housing.

Abstract: A family of power transmissions, which are utilized in a powertrain, include three planetary gearsets and five torque-transmitting mechanisms. The torque-transmitting mechanisms are either five rotating type torque-transmitting mechanisms or four rotating type torque-transmitting mechanisms and one stationary type torque-transmitting mechanism. Each of the three planetary gearsets all include three members represented by a sun gear member, a ring gear member, and planet carrier assembly member. The planet carrier assembly member may be of either the single pinion or double pinion. In each of the family members, at least four of the planetary members are interconnected continuously with either another planetary member, the input shaft, the output shaft, or a stationary housing of the transmission. At least four of the planetary members are noncontinuously interconnected with another planetary member, the input shaft, the output shaft, or the stationary housing.

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

Abstract: A multi-speed gear hub shiftable under load having a hub shell, a stationary hub shaft, a bearing-mounted driver, and a planet gear mechanism having a ring gear and a planet carrier. A selector element displaces a coupler and introduces a shifting motion into the gearing system. The power travels from the driver to a pawl carrier having rotational play and then to the ring gear and the coupler via the pawls. To implement the backpedal brake, the pawls on the pawl carrier are controlled in a directionally dependent manner via a cam element that is joined nonrotatably to the driver. A spring-preloaded shifting sleeve disengages the pawls with a driving contour on the coupler which is initiated by the selector element. The ring gear carries stud-mounted displacement pawls and is split to simplify production and assembly. The braking operation is always performed in the low gear ratio and thus always exhibits the same braking effect regardless of the gear selection.

Abstract: A powertrain includes a power transmission having an input shaft continuously connected directly between an engine and a planetary gear member of a first planetary gear set. Another member of the planetary gear set is selectively grounded by a torque transmitting mechanism to establish a reaction member during the launch of a vehicle incorporating the powertrain. The reaction member is established during both the lowest forward drive ratio and the reverse drive ratio. A third member of the planetary gear set transmits the torque from the input shaft, as modified by the planetary gear set, to other planetary gear sets in down stream power flow arrangement with the first planetary gear set. The torque transmitting mechanism grounding the reaction member of the first planetary gear set is preferably a brake having two half bands.

Abstract: A device and method for shifting the operating speed of a machine while under load. The machine includes a casing, an input and output shaft. The device includes a clutch mechanism, a primary carrier, a cluster gear, a ring gear, a first and second gear. The clutch mechanism is operably associated with the input shaft. The primary carrier is operably coupled to rotate the output shaft. The cluster gear is rotatably coupled to the primary carrier. The first gear is rotatably mounted within the casing and second gear is rotatably mounted on the first gear. The first and second gear are in mesh with the cluster gear. The cluster gear is adapted to rotate around the first and second gears on primary carrier when one of the first gear and the second gear is engaged thereby rotating the output shaft at the operating speed corresponding to the engaged gear.

Abstract: A powertrain includes a power transmission having an input shaft continuously connected directly between an engine and a planetary gear member of a first planetary gear set. Another member of the planetary gear set is selectively grounded by a torque transmitting mechanism to establish a reaction member during the launch of a vehicle incorporating the powertrain. The reaction member is established during both the lowest forward drive ratio and the reverse drive ratio. A third member of the planetary gear set transmits the torque from the input shaft, as modified by the planetary gear set, to other planetary gear sets in down stream power flow arrangement with the first planetary gear set. The torque transmitting mechanism grounding the reaction member of the first planetary gear set is preferably a brake having two half bands.

Abstract: A powertrain incorporates three planetary gear sets and five rotating torque transmitting mechanisms in a compact structure having minimum mechanical content to provide at least six forward speed ratios and a reverse ratio between an input shaft and an output shaft. One of the planetary gear sets has three rotatable members with one member continuously connected with the input shaft, another member continuously connected with the output shaft and a further member that is non-continuously interconnected. Another and a further of the planetary gear sets each has three members with respective first members being continuously interconnected and respective second members being continuously interconnected through first and second continuous interconnections, respectively. The third member of the other planetary gear set is non-continuously connected and the third member of the further planetary gear set is continuously connected with a stationary member such as a transmission housing.

Abstract: A speed-changing control mechanism of a multistage speed-changing wheel hub has a planetary gear device comprising a gear support and a plurality of planetary gears. The planetary gears are respectively engaged with a ring gear and sun gears. The rotational power of a drive member is transmitted to the ring gear or the gear support via a sleeve. A speed ratio change is brought about by the action of the planetary gears and the sun gears. The power is finally transmitted to the wheel hub via the gear support or the ring gear. The planetary gears are driven by the power input source portion of the sleeve in conjunction with the action of another sleeve on the fastening shaft, thereby controlling two sets of one-way ratchet pawls opposite in direction to engage or disengage.

Abstract: An apparatus for changing direction of driving force for bicycles, more particularly, an apparatus for changing direction of driving force for bicycles, which can travel bicycles forward by pedaling rearward as well as by pedaling forward, is provided.

Abstract: A bike inner derailleur has manifold stages of speed alteration, including a flat projecting wheel rotatable to produce angle change, plural control rods fitted on a fix shaft and moved by the flat projecting wheel, and the fix shaft is fitted in a hollow center interior of a wheel hub. Then selecting a rotating angle of the flat projecting wheel may operate to changeover detents of single direction provided in an input route formed between a power input source and a power output source through at least one or more control rods moving horizontally. Further, an intermediate ring is provided between two planetary gear groups, operated to changeover the detents for selecting manifold power transmitting routes.

Abstract: A power train of an automatic transmission adapted to realize a shift stage comprising five forward speeds and one reverse speed by two simple planetary gear sets and seven friction elements to thereby enable compactness and lightness of the automatic transmission, the power train comprising: a combined planetary gear set provided by fixedly connecting a planetary carrier of a first signal pinion planetary gear set to a ring gear of a second single pinion planetary gear set, and by fixedly connecting a ring gear of a first single pinion planetary gear set to a planetary carrier of a second single pinion planetary gear set; three input units for causing an input to be variably initiated to any of three actuating elements out of various actuating elements at the combined planetary gear set; two output units for causing an output to be variably initiated from any of two actuating elements out of various actuating elements at the first single pinion planetary gear set; and two brakes actuating reaction forces bet

Abstract: An adaptive electronic transmission control for an automatic transmission having multiple-ratio gearing establishing plural torque flow paths between a torque input member and a driven member, the relative motion of the elements of the gearing being controlled by a friction torque establishing member and an overrunning coupling connection between two gear elements of the gearing. A ratio shift is achieved by establishing a driving connection between a selected gearing element and a torque delivery shaft. The shift is achieved by controlling the capacity of the friction element using a fluid pressure actuator. Shift quality is optimized by establishing a bias pressure on a friction element accumulator and by using a feedback control system to control the rate of change of transmission ratio during the shift.

Abstract: An apparatus for changing direction of driving force for bicycles, more particularly, an apparatus for changing direction of driving force for bicycles, which can travel bicycles forward by pedaling rearward as well as by pedaling forward, is provided.

Abstract: A controller for changeable pedaling system of a bi-directional pedaling bicycle is provided.

Abstract: A winch having one orbital gear or one set of orbital gears to transmit drive from a drive shaft to a drum in which the orbital gear or a gear of the set of orbital gears transmits drive to the drum at different drive ratios from the drive shaft in accordance with the direction of rotation of the drive shaft. The orbital gear or set of orbital gears is/are double gears engaged with a stationary gear ring and a drivable gear ring. Transmission of drive is either from a carrier of the gear(s) or from the drivable gear ring depending on the direction of rotation of the drive shaft.

Abstract: A multi-speed drive hub for bicycles includes a hub axle, an epicyclical gear unit, a drive-side coupling gear, an output-side coupling gear, first and second tooth systems, and a spring-loaded shift link. The epicyclical gear unit is mounted concentrically on the hub axle and has a ring gear, a planet-gear carrier, a plurality of double planet gears mounted rotatably on the planet-gear carrier, and two sun gears meshing with the double planet gears. The ring gear meshes with the double planet gears. The first tooth system connects the drive-side coupling gear to one of the ring gear and the planet-gear carrier. The second tooth system connects the output-side coupling gear to one of the planet-gear carrier and the ring gear. The shift link is mounted coaxially on and slidable axially of the hub axle, and has a plurality of axially spaced radial lugs provided thereon. The drive-side and output-side coupling gears are connected to the shift link to be displaced therewith along the hub axle.

Abstract: A single mechanism mounted at the head of a winch has a double-selector function, allowing either 1st or 2nd ratio of drive to a drum to be selected upon initial rotation of the drive shaft. The mechanism is mounted coaxially with the drum and shaft and has coaxial inner and outer control buttons. Its body can be mounted on the end of the drive shaft from above.

Abstract: A drive system for a variable diameter rotor system that includes a plurality of rotor blade assemblies with inner and outer blade segments. The outer blade segment being telescopically mounted to the inner blade segment. The drive system engaging a jackscrew for telescoping the outer blade segment with respect to the inner blade segment. The drive system includes a rotor hub that is pivotally mounted to the upper end of a main rotor shaft about a pivot point. A gimbaled bearing is disposed between and attached to the main rotor shaft and the rotor hub. The gimbaled bearing permits the rotor hub to pivot about the pivot point. A blade actuation shaft is concentrically disposed within the main rotor shaft. The blade actuation shaft has a constant velocity joint pivotally attached to its upper end about the pivot point. A planetary gearset engages the blade actuation shaft with the jackscrew.

Abstract: A rotor blade actuation system is disclosed for controlling extension and retraction of an outboard blade section of a rotor blade by varying the speed and direction of rotation between a main rotor shaft and a blade actuation shaft. The rotor blade actuation system includes a drive gear on the main rotor shaft and a blade actuation drive gear on the blade actuation drive shaft. A primary drive unit is engaged with and transmits rotary motion from the main rotor shaft to the blade actuation shaft. The primary drive unit includes an input gear engaged with the drive gear. A primary drive is engaged with the drive gear through an input gear and a master clutch. An output drive is engaged with the blade actuation drive gear. A forward clutch controls engagement of a forward planetary gearset with the primary drive and the output drive. The engagement of the forward planetary gearset causes the blade actuation shaft to rotate in the same direction as the rotation of the main rotor shaft.

Abstract: An electro-mechanical transmission includes an electrical section and a mechanical transmission to provide an infinitely adjustable power flow through the transmission. The mechanical transmission includes a planetary gearing mechanism having four planetary gear sets and six members which interact with the electrical section and a gear change mechanism to infinitely adjust output speed.

Abstract: A simple planetary gearset and four transfer gear pairs are combined to provide five forward speed ratios and two reverse speed ratios in a power transmission. Three selectively engageable clutches controlling three of the transfer gear pairs are engaged in combination with two selectively engageable friction devices controlling the simple planetary gearset to establish four of the forward speed ratios and the two reverse ratios. A fourth selectively engageable clutch, controlling the fourth transfer gear pair establishes a forward ratio numerically central of the aforementioned four forward ratios.

Abstract: A bicycle transmission includes a shaft, a driving part supported about the shaft for coupling to the input part, a driven part supported about the shaft for coupling to the output part, and a planetary gear mechanism disposed between the driving part and the driven part for changing the transmission ratio of the motive force applied from the driving part to the driven part. The planetary gear mechanism comprises a sun gear installed about the shaft, an output gear for transmitting motive force to the driven part, a frame part installed about the shaft and coupled to the driving part, and a planetary gear rotatably coupled to the frame part and disposed between the sun gear and the output gear for engaging the sun gear and the output gear. A clutch comprising a roller is disposed at an intermediate point along the transmission path between the driving part and the driven part for transmitting the motive force from the driving part to the driven part in one direction only.

Abstract: A transmission used as part of a drive unit to transmit power is coupled to a V6 engine drive shaft by a torque converter and includes an axially extending ring gear assembly, a sun gear positioned coaxially within part of the ring gear assembly and two planetary gear assemblies each spaced axially from the other and meshing with the sun gear and the ring gear assembly. The ring gear assembly is driven in rotation about its axis and an output drive shaft by the rotational forces of the motor output shaft and includes two different diameter annular ring gears which are each centered on and extend radially about the transmission axis. The annular ring gears have different diameters and radially inwardly extending teeth. The sun gear includes a portion axially aligned within each of the two ring gears. A clutch plate or pack, gearing or other band or pressure brake is provided to selectively permit or prevent the rotation of the sun gear about the transmission axis and relative to the output drive shaft.

Abstract: A powertrain has a planetary transmission with two simple planetary gearsets interconnected between an input shaft and an output shaft. The planetary gearsets are controlled to establish five forward speed and torque ratios and one reverse speed and torque ratio by selective engagement of three clutches and two brakes.

Abstract: A multiple-speed epicyclic transmission produces speed ratios in response to movement of a brake band among components of the gearset and subsequent engagement with the gearset component that corresponds to the desired gear ratio. The brake band is biased into engagement with a corresponding gearset component by a spring and is released from that engagement using a hydraulic or electric actuator. A cartridge moves the band to the gearset component that must be held fixed against rotation to produce the desired gear ratio. Engagement of the brake band with a brake drum or ring gear holds the corresponding gearset component against rotation on the transmission housing.

Abstract: A multiple speed transmission producing a gear ratio in response to movement of a gear selector lever and manipulation of a clutch pedal includes three planetary gearsets each including a sun gear, ring gear, carrier rotatably supporting a set of planet pinions in continues meshing engagement with the corresponding sun gear and ring gear, and a brake drum driveably connected to one component of each gearset and adapted for alternate engagement by a brake band. The brake band is biased into engagement with the corresponding brake drum by a spring and is released from that engagement using a clutch pedal. A shift lever moves the band to the gearset that produces the desired gear ratio. Engagement of the brake band with each of the drums holds a component of the gearset against rotation on the transmission housing.

Abstract: A transmission includes a first simple planetary gear set having first, second, and third elements, the first element of the first gear set receiving rotational motion input to the transmission, and a second simple planetary gear set having first, second, and third elements, the first element of the second gear set outputting rotational motion from the transmission and the second element of the second gear set being connected to the third element of the first gear set. The elements of the first gear set include a sun gear, a first carrier, and a first ring gear, and the elements of the second gear set include a second sun gear, a second carrier, and a second ring gear. A first clutch selectively couples the second element of the first gear set to the first element of the second gear set. A second clutch selectively couples two elements selected from the group consisting of the first, second, and third elements of the first gear set and the second element of the second gear set.

Abstract: A transmission includes a first simple planetary gear set having first, second, and third elements, the first element of the first gear set receiving rotational motion input to the transmission, and a second simple planetary gear set having first, second, and third elements, the first element of the second gear set outputting rotational motion from the transmission. The elements of the first gear set include a sun gear, a first carrier, and a first ring gear, and the elements of the second gear set include a second sun gear, a second carrier, and a second ring gear. A first clutch selectively couples the second element of the first gear set to the second element of the second gear set. A second clutch selectively couples the third element of the first gear set to the third element of the second gear set. A third clutch selectively couples two of the elements of the first gear set.

Abstract: A transmission includes a first simple planetary gear set having first, second, and third elements, the first element of the first gear set receiving rotational motion input to the transmission, and a second simple planetary gear set having first, second, and third elements, the first element of the second gear set outputting rotational motion from the transmission and the third element of the second gear set being connected to the third element of the first gear set. The elements of the first gear set include a sun gear, a first carrier, and a first ring gear, and the elements of the second gear set include a second sun gear, a second carrier, and a second ring gear. A first clutch selectively couples the second element of the first gear set to the second element of the second gear set. A second clutch selectively couples the first element of the first gear set to the second element of the second gear set.

Abstract: A transmission for transferring power from an input to an output, comprising a drive planetary gear assembly coupled to an input, and a driven planetary gear assembly coupled to an output and to the drive planetary gear assembly, whereby power from the input is transferred to the output along an infinitely variable torque and gearing range.

Abstract: A trans-planetary mechanical torque impeller utilizes at least two sets of input planetary pinion gears of differing sizes, which are supported by a planetary carrier. These input planetary pinion gears rotate with respect to primary and secondary annulus gears which, in turn, drive bevel gears which engage a differential pinion gear to drive an output shaft. The output shaft load causes the torque impeller to automatically vary its gear ratio to match the input shaft or motor power output capability to the output shaft load.

Abstract: A change gear system comprises a driven case, a driving shaft and shifting means for shifting the drive shaft, and three sliding frames are provided in alignment in the driven case. Each sliding frame is provided with a pair of rack gears with teeth facing each other and cam surfaces facing each other in parallel with a pitch line of the rack gears. The sliding frames are provided for movement at an angle of 120 (deg.) in different directions perpendicular to the pitch, respectively. The driving shaft is provided with pinions and cam plates. The cam plates are in contact with the cam surfaces, and serve for positioning the sliding frames. The cam plates are configured such that arcs C1 are linked alternatingly with arcs C2.

Abstract: A control system for a multiple ratio transmission including two overrunning couplings acting in cooperation with friction clutches and brakes to effect controlled shifts between ratios to reduce inertia torque upon engagement of friction brakes associated with speed ratio downshifts that occur in time-controlled stages following a command for a downshift and for establishing an electronic pressure accumulator effect upon speed ratio upshifts following a command for an upshift.