Abstract: Transmissions with at least three gearing-arrangements with similar first and second gearing-arrangements that produce a number of transmissions having an eleven forward-speed and two reverse-speed ratios, having ten forward-speed and three reverse-speed ratios, and having five forward-speed and one reverse-speed ratios by selective engagement of three shift-elements in various combinations. Some embodiments include four simple planetary-gearsets and six shift-elements of which two or three are brakes. Another embodiment includes a double-pinion planetary-gearset and six shift-elements of which three are brakes. Other embodiments include three simple planetary-gearsets and five shift-elements of which one or two are brakes.

Abstract: An electrically variable drive unit having two electric motors is provided. The first electric motor is mounted along the same axis as an engine. The second electric motor is mounted along the same axis as a transmission output.

Abstract: A transmission includes an input member, an output member, four planetary gear sets, and a plurality of torque transmitting mechanisms that are selectively engageable to establish at least ten forward speed ratios and at least one reverse speed ratio between the input member and the output member. The transmission further includes one or more locking mechanisms that engage one or more of the plurality of torque transmitting mechanisms during a start/stop event.

Abstract: A transmission with nine forward and one reverse gear having four planetary gearsets, eight shafts and six shifting elements. The sun gears of gearsets (P1, P3) couple shaft (5), and can couple the housing by brake (05). Input shaft (1) can couple, via clutch (14), shaft (4), which couples carrier and sun gears of respective gearsets (P3, P2) and can couple housing via brake (04). Shaft (1) can couple, via clutch (17), shaft (7), which couples ring gear of gearset (P3) and can couple, via clutch (18), shaft (8) which couples ring gear and carrier of respective gearsets (P4, P2). Shaft (6) couples ring gear and carrier gear of respective gearsets (P2, P4). Shaft (3) couples sun gear of gearset (P4) and can couple, via brake (03), the housing. Output shaft (2) couples carrier and ring gear of respective gearsets (P4, P1).

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

Abstract: A multi-gear transmission having a housing, planetary gearsets, shafts and shifting elements. Input shaft (1) is connected or can couple the sun gear of gearset (RS3), and can couple the sun gear of gearset (RS1) and the carrier of gearset (RS1) and can couple the sun gear of gearset (RS2). Output shaft (2) is connected directly to the ring gear of gearset (RS4) and is connected or couple indirectly the carrier of gearset (RS3). The sun gear and the carrier of gearset (RS1) and the sun gear of gearset (RS4) can in each case couple the housing. The ring gear of gearset (RS1) is connected to the carrier of gearset (RS4) and is or can couple the ring gear of gearset (RS2), and the carrier of gearset (RS2) and the ring gear of the third planetary gearset (RS3) are or can be connected to one another.

Abstract: An automatic transmission device that changes a relative speed between an input and output member. The transmission configured with a first planetary gear mechanism including first to third rotary elements, a second planetary gear mechanism including fourth to sixth rotary elements, a third planetary gear mechanism including seventh to ninth rotary elements, and a fourth planetary gear mechanism including tenth to twelfth rotary elements. A first coupling between the third and eighth rotary element, a second coupling between the fifth and eleventh rotary element, a third coupling between the sixth and twelfth rotary element, a fourth coupling between the seventh and tenth rotary element. A first clutch between the first and third coupling, a second clutch between the first rotary element and the third coupling element, a third clutch between the first and fourth rotary element.

Abstract: An automatic transmission for adjusting the relative speed between an input and output member. The transmission being configured with four planetary gears, the first having first to third rotary elements, the second having fourth to sixth rotary elements, the third having seventh to ninth rotary elements, the fourth having tenth to twelfth rotary elements. Three couplings between (i) first and sixth rotary elements, (ii) second and fifth rotary elements, and (iii) eighth and twelfth rotary elements. Three clutches are provided between (i) the second coupling and input member, (ii) third coupling and input member, and (iii) seventh rotary element and input member. Three brakes are provided at (i) the fourth rotary element, (ii) third coupling element, and (iii) tenth rotary element. The output member is connected to the third rotary element.

Abstract: An automatic transmission configured with four planetary gear mechanisms, three clutches, and three brakes configured so as to selectively provide ten forward speeds and a reverse speed. The configuration enables smoother acceleration due to the number of different shift speeds available, and provides a generally more comfortable driving experience. The combination also enables a reduction of loss of efficiency that that occurs due to the meshing between gears and enhances the torque transfer efficiency.

Abstract: A multi-stage transmission with eight forward and one reverse gear including planetary gearsets, shafts, and shift elements. The sun gear of gearset (P1) couples shaft (3) and the ring gear of gearset (P4) and can couple the housing via brake (03). The drive shaft couples the carrier of gearset (P1) and can couple shaft (5) via clutch (15). Shaft (5) couples the ring and sun gears of respective gearsets (P2, P4). The ring gear of gearset (P1) couples shaft (6) and the sun gear of gearset (P2). Shaft (8) couples the carrier and sun gears of respective gearsets (P4, P3). Shaft (4) couples the carrier of gearset (P3) and can couple the housing via brake (04). Output shaft couples the ring gear of gearset (P4) and can couple, via clutch (27), shaft (7), which couples the carrier of gearset (P2). Clutch (67, 56, 57) engages to block gearset (P2).

Abstract: A multi-stage transmission having eight forward and one reverse gear, including planetary gearsets, shafts and shift elements. The sun gear of gearset (P1) is connected to shaft (3) and the ring gear of gearset (P3) and can couple the housing via brake (03). The input shaft couples the carrier of gearset (P1) and can couple, via clutch (15), shaft (5) which couples the ring and sun gears of respective gearsets (P2, P3). The ring gear of gearset (P1) couples shaft (6), which can couple, via clutch (67), shaft (7), which couples the sun gear of gearset (P2). Shaft (8) couples the carrier and sun gear of respective gearsets (P3, P4). Shaft (4) couples the carrier of gearset (P4) and can couple, via brake (04), the housing. The output shaft couples the ring gear of gearset (P4) and the carrier of gearset (P2). Clutch (56) can connect shafts (5, 6).

Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of four to establish a plurality of forward gear ratios and one reverse gear ratio. The transmission also includes a transmission auto start/stop enabler which includes a latch mechanism. The latch mechanism readies at least one of the plurality of torque transmitting devices during an engine auto stop/start event or in preparation for a stop of the motor vehicle.

Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes. An transmission auto start/stop enabler includes one or multiple latches. The latches engage one or more of the plurality of torque transmitting devices during an engine auto stop/start event or in preparation for a stop of the motor vehicle.

Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes including a selectable one-way clutch actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio. The transmission also includes a transmission auto start/stop enabler which includes a latch mechanism. The latch mechanism readies one of the plurality of torque transmitting devices during an engine auto stop/start event or in preparation for a stop of the motor vehicle.

Abstract: A multi-stage transmission having eight forward and one reverse gear including planetary gears, shafts, and shift elements. The sun gear of gearset (P1) couples the third shaft (3) and the ring gear of gearset (P3), and can couple the housing via brake (03). The input shaft couples the carrier of gearset (P1) and can couple, via clutch (15), shaft (5), which couples the sun gear of gearset (P3) and can couple, via clutch (57), shaft (7) that couples the ring gear of gearset (P3). Shaft (6) couples the ring and sun gears of respective gearsets (P1, P2). Shaft (8) couples the carrier and the sun gear of respective gearsets (P3, P4). Shaft (4) couples the carrier of gearset (P4) and can couple, via brake (04), the housing. The output shaft couples the ring gear of gearset (P4) and the carrier of gearset (P2). Clutch (56) detachably connects shafts (5, 6).

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

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. Two planetary gear sets are configured to rotate about an input axis while two planetary gear sets are configured to rotate about a second axis. Power is transferred from the input axis to the second axis by two pairs of axis transfer gears. The output element is located on the second axis.

Abstract: A vehicle automatic transmission includes: a plurality of rotating elements disposed rotatably relative to a transmission case; clutches each disposed between two rotating elements of the plurality of the rotating elements to be engaged to inhibit relative rotation between the two rotating elements and released to allow relative rotation between the two rotating elements, the clutches not including those engaged to directly couple the rotating elements to the transmission case and selectively establishing multiple shift stages achieved in the automatic transmission depending on a combination of engagement and release of the clutches, the vehicle automatic transmission, including three planetary gear devices and the six clutches, the plurality of the rotating elements being configured to include sun gears, carriers, and ring gears of the three respective planetary gear devices, and each of the multiple shift stages being established by engaging four clutches and releasing the remaining two clutches.

Abstract: The present invention provides a 10-shift power train of an automatic transmission for a vehicle, comprising: a first planetary gear set including a first sun gear selectively connected to a transmission casing, a first ring gear selectively connected to the transmission casing, and a first planetary carrier for integrally connecting a plurality of single pinions engaged between the first sun gear and the first ring gear; a second planetary gear set including a second sun gear directly connected to the first sun gear, a second planetary carrier directly connected to an input shaft and selectively connected to a third sun gear, and a second ring gear selectively connected to a fourth ring gear; a third planetary gear set including a third sun gear selectively connected to the second planetary carrier, a third planetary carrier selectively connected to the second ring gear, and a third ring gear selectively connected to the second ring gear; and a fourth planetary gear set including a fourth sun gear directly c

Abstract: A family of transmission gearing arrangements provides between eight and ten forward speed ratios and a reverse speed ratio. Three planetary gear sets are located on the input axis and a fourth planetary gear set is located on an offset axis. Axis transfer gears convey power between the input axis and the offset axis. One axis transfer gear is supported by a front support while another is supported by a center support. The center support also supports a clutch module and supplies pressurized fluid to engage the clutches in the clutch module.

Abstract: A continuously variable transmission includes a variator unit having a variator input shaft and a variator output shaft, and a first, a second, a third and a fourth planetary gear set, wherein each of the first and second planetary gear sets has a first member operatively connected to a common transmission input shaft, which transmission input shaft is common to the first and second gear sets, and a second member operatively connected to an output shaft, which output shaft is common to the first and second gear sets. Each of the first and second planetary gear sets further includes a third member, and the third planetary gear set has a first, a second and a third member.

Abstract: The first planetary gear set is configured to integrally rotate by a first clutch. The first element is coupled with the fifth element. The second element is configured to be locked through a first brake to a stationary section and configured to be coupled through a second clutch with the ninth element. The third element is coupled with the input shaft. The fourth element is configured to be coupled through a third clutch with the ninth element. The sixth element is locked to the stationary section. The seventh element is configured to be locked through a second brake to the stationary section. The eighth element is coupled with an output shaft. The ninth element is coupled with the twelfth element. The tenth element is configured to be coupled through a fourth clutch with the output shaft. The eleventh element is coupled with the input shaft.

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

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

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

Abstract: The present disclosure provides a power split transmission with four Electric Variable Transmission (EVT) modes and six fixed gears for use in hybrid electrical vehicles (HEV). The present disclosure utilizes two electric motors (“E-motors”), an engine, three planetary gear sets, and five selectively engageable clutches. The clutches are engaged in different combinations to engage the different gears and EVT modes. In the six fixed gears, power is transmitted only on the mechanical path for the highest transmission efficiency. In the four EVT modes, a part of the power is transmitted electrically. The EVT modes are designed for the lowest power split ratios, allowing the use of low powered E-motors. Additionally, the present disclosure can include a front E-motor design allowing scalable E-motors and a modular transmission design, and a middle E-motor design.

Abstract: A transmission is provided having a housing, a plurality of planetary gear sets, a structural member, a sprocket member, an annular drum, a band, and an actuator. The sprocket member is rotationally supported by the structural member. The annular drum is adjacent the structural member and is continuously rotationally coupled with a member of the one of the plurality of planetary gear sets. The band circumscribes the annular drum and includes at least a first position and a second position. In the first position the band is substantially separated from the drum and in the second position the band contacts the drum. The actuator selectively positions the band between at least the first position and the second position to transfer torque between the structural member and the annular drum.

Abstract: A transmission having basic and reversing transmissions. The basic transmission has planetary gearsets, shafts and shift elements. A sun of gearset (P1) couples the drive shaft, which can couple shaft (6) and the suns of gearsets (P2, P3), and shaft (5) and the carrier and ring of gearsets (P2, P3) respectively. Carrier of gearset (P1) couples shaft (4), which couples the ring of gearset (P2). The ring of gearset (P1) couples shaft (3). Shafts (3, 4, 5) can couple the housing. The output shaft couples the carrier of gearset (P3). The reversing transmission has a minus planetary gearset with a sun which couples and is driven by the basic transmission output, and a carrier that can couple the housing via a locking element, and a ring that couples the reversing transmission output which can couple, via another locking element, the basic transmission output.

Abstract: A transmission includes an input and output member, four planetary gear sets each having first, second and third members, five interconnecting members continuously interconnecting members of the four planetary gear sets and six torque transmitting mechanisms selectively engageable to interconnect one of the first members, second members, and third members with at least one of another of the first members, second members, third members, and a stationary member. The torque transmitting mechanisms are selectively engageable in combinations of at least two to establish at least nine forward speed ratios and at least one reverse speed ratio between the input member and the output member.

Abstract: A method of operating a transmission device (3) having a plurality of frictionally engaging shift elements (B, C, D and E) and at least one form-locking shift element (A, F) for implementing different transmission ratios. Upon a requested change in operating state of the transmission device (3), the at least one form-locking shift element (A) is transferred into an at least nearly load-free state, during which the form-locking shift element (A) is transferred from an engaged to a disengaged operating state by increasing the transfer capability of at least one frictionally engaging shift element (E), which is not engaged in the power flow of the transmission device (3) either to represent the present operating state or to represent the requested operating state.

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

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

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

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

Abstract: A transmission gearing arrangement produces ten forward speed ratios and four reverse speed ratio by selective engagement of three shift elements in various combinations. Some embodiment includes four simple planetary gear sets and seven shift elements of which three or four are brakes. Another embodiment includes two axis transfer gear pairs in place of one of the planetary gear sets. One of the brakes is used only in reverse and may be a latch.

Abstract: A transmission is provided having an input member, an output member, a plurality of planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. One of the plurality of torque transmitting devices is an integrated friction launch clutch. A disconnect clutch is in series relationship with the launch clutch and is configured to disconnect the launch clutch from at least one of the plurality of planetary gear sets. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish at least ten forward gear ratios and one reverse gear ratio.

Abstract: A transmission includes an input member, an output member, a set of four planetary gear sets each having first, second, and third members, a plurality of torque transmitting mechanisms each selectively engageable to interconnect at least one of the first, second, and third members with at least one other of the first, second, third members and a stationary member, and a synchronizer assembly that selectively connects and disconnects one member of one of the planetary gear sets.

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

Abstract: A family of transmission gearing arrangements produces at least nine forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. Each disclosed transmission includes four planetary gear sets, three brakes, and either three or four clutches. One embodiment produces twelve forward speed ratios and two reverse speed ratios. Another embodiment produces thirteen forward speed ratios.

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

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

Abstract: A 9-speed planetary gear-automatic transmission includes precisely one gearbox input element, precisely one gearbox output element, precisely four planetary gear sets and precisely six shifting devices for selecting the individual gears of the planetary gear-automatic transmission.

Abstract: The present disclosure provides an automatic transmission having an input adapted to couple to a torque-generating mechanism and an output coupled to the input. The transmission also includes a first rotating torque-transferring mechanism disposed along a first torque path and coupled to the input. A second rotating torque-transferring mechanism is disposed along a second torque path and is coupled to the input independent of the first torque-transferring mechanism. The transmission includes a plurality of stationary torque-transferring mechanisms, each of which is disposed between the input and output. The transmission includes a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset, where each gearset includes a sun gear, a ring gear, and a carrier assembly. Moreover, the ring gear of the third planetary gearset is coupled to the carrier assembly of the second planetary gearset and the carrier assembly of the fourth planetary gearset.

Abstract: A family of transmission gearing arrangements produces up to nine forward and one reverse speed ratios by selective engagement of three shift elements in various combinations. Each disclosed transmission includes four planetary gear sets and six elements. Two of the arrangements feature planetary gear sets that are separated radially and are particularly suited to applications that require reduced axial length.

Abstract: A transmission is provided having a housing, a plurality of planetary gear sets, a structural member, a sprocket member, a first dog clutch member, a second dog clutch member, and a biasing member. The structural member is secured to the housing and includes a plurality of splines and defines a cavity. The sprocket member is rotationally supported by the structural member. The first dog clutch member is disposed in the cavity of the structural member and includes splines and dogteeth. The splines are engaged with the splines of the structural member. The second dog clutch member includes dogteeth that are aligned with the dogteeth of the first dog clutch member. The biasing member is disposed between the structural member and the first dog clutch member.

Abstract: A speed change system for work vehicle having a continuously variable transmission device selects a first change gear ratio which is set larger than a smallest change gear ratio, when an engine rotational speed is a first set rotational speed which is set equal or close to an idling rotational speed of an engine; retains the change gear ratio of the continuously variable transmission device at the smallest change gear ratio, when the engine rotational speed is equal to or above a second set rotational speed set on a high-speed side relative to the first set rotational speed; and makes the change gear ratio of the continuously variable transmission device larger between the first change gear ratio and the smallest change gear ratio, as the engine rotational speed at that moment becomes lower, when the engine rotational speed is between the first and second set rotational speeds.

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 transmission includes a first motor/generator having a first rotor that is selectively rotatable about a first axis and a second motor/generator having a second rotor that is selectively rotatable about a second axis. A first planetary gearset and a second planetary gearset each has a respective first planetary member, a respective second planetary member, and a respective third planetary member. One of the members of the first planetary gearset is operatively connected to the first rotor to receive torque therefrom. One of the members of the second planetary gearset is operatively connected to the second rotor to receive torque therefrom.

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

Abstract: A 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 three brakes actuatable in combinations of three to establish each of ten forward gear ratios and one reverse gear ratio.