Abstract: A planetary gear train may include an input shaft, an output gear adapted to output a shifted torque, a first compound planetary gear set having four rotation elements by combining first and second planetary gear sets, a second compound planetary gear set having four rotation elements by combining third and fourth planetary gear sets, eight rotation shafts including two rotation elements connected to each other or one rotation element among the rotation elements of the first and second compound planetary gear sets, and six friction members including three clutches interposed between a selected rotational shaft among the rotational shafts and the input shaft and adapted to selectively transmit the torque and three brakes interposed between a selected rotational shaft among the rotational shafts and a transmission housing.

Abstract: A planetary gear train of an automatic transmission may include an input shaft; an output gear; a first compound planetary gear set having four rotation elements by combining first and second planetary gear sets; a second compound planetary gear set having four rotation elements by combing third and fourth planetary gear sets; eight rotational members including two rotation elements connected to each other or one rotation element among the rotation elements of the first and second compound planetary gear sets; and seven friction members including three clutches interposed between a selected rotational member among the rotational members and the input shaft and adapted to selectively transmit the torque and four brakes interposed between a rotational member among the rotational members and a transmission housing.

Abstract: A vehicle multi-speed automatic transmission which comprises an input shaft (AN) and an output shaft (AB); first, second, third and fourth planetary gear sets (RS1, RS2, RS3, RS4); at least third, fourth, fifth, sixth, seventh and eighth rotatable shafts (3, 4, 5, 6, 7, 8); and first, second, third, fourth and fifth shifting elements (A, B, C, D, E) whose selective engagement, in combinations of three engaged shifting elements, defines different gear ratios, between the input shaft (AN) and the output shaft (AB), for implementing eight forward gears and at least one reverse gear. When shifting from one forward gear into a successive higher or lower forward gear, only a single one of the first, the second, the third, the fourth and the fifth shift elements is disengaged and only a single one of the first, the second, the third, the fourth and the fifth shift elements is engaged.

Abstract: A transmission includes an input and output member, two planetary gear set assemblies each having first, second, third, and fourth members, one interconnecting members continuously interconnecting a member of the first planetary gear set assembly with a member of the second planetary gear set assembly and six torque transmitting mechanisms selectively engageable to interconnect one of the first members, second members, third members, and fourth members with at least one of the input member and a stationary member. The torque transmitting mechanisms are selectively engageable in combinations of at least three 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 transmission for a hybrid electric vehicle, may include an input element where rotation power may be inputted and an output element from which the rotation power may be outputted, a first motor generator and a second motor generator, a first planetary gear set that may be a multiple planetary gear set having at least four or more rotary elements with which the input element, the output element, and the first motor generator may be connected, a second planetary gear set with which the output element and the second motor generator may be connected, and a first clutch and a second clutch.

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: An automatic transmission includes a first planetary gear set including first to third rotating elements; a second planetary gear set including fourth to sixth rotating elements; a third planetary gear set including seventh to sixth to ninth rotating elements; an input shaft constantly connected with the first rotating element; an output shaft constantly connected with the second rotating element; and at least five friction elements including a first friction element capable of locking a rotation of the eighth rotating element, a second friction element configured to selectively connect the second rotating element with the fifth rotating element, a third friction element configured to selectively connect the second rotating element with a second rotating member defined by the sixth and seventh rotating elements, a fourth friction element configured to selectively connect the fifth rotating element with the eighth rotating element, and a fifth friction element configured to selectively connect the first rotati

Abstract: A planetary gear train of an automatic transmission for vehicles may include an input shaft adapted to receive torque of an engine, an output gear adapted to output changed torque, a first planetary gear set having a first sun gear, a first planet carrier, and a first ring gear as rotation elements, a second planetary gear set having a second sun gear, a second planet carrier, and a second ring gear as rotation elements, a third planetary gear set having a third sun gear, a third planet carrier, and a third ring gear as rotation elements, seven rotation shafts connected or selectively connected to one or more rotation elements, other rotation shafts, or a transmission housing, and six friction members interposed selectively at connecting portions of the rotation shafts.

Abstract: A retrofit kit for an Allison transmission for converting a standard Allison Transmission into a variable speed hybrid using external pressure. The retrofit kit for an Allison transmission includes a main housing; gear sets being disposed in the main housing and including rotational members; clutches being in operable communication to the gear sets; a hydrostatic pump being in operable communication to at least one of the rotational members and having ports; and a fluid circuit being in fluid communication to the hydrostatic pump through the ports and to at least one of the clutches.

Abstract: A planetary gear train of an automatic transmission may include an input shaft configured to receive an engine torque, an output shaft configured to output a shifted torque, a first compound planetary gear set including first and second simple planetary gear sets having first and second sun gears, first and second planet carriers, and first and second ring gears as rotation elements, a second compound planetary gear set including third and fourth simple planetary gear sets having third and fourth sun gears, third and fourth planet carriers, and third and fourth ring gears as rotation elements, seven rotational shafts connecting to one to more rotation elements, and seven friction members including three clutches interposed between a rotational shaft and the input shaft to control the torque and four brakes selectively connecting a rotational shaft to a transmission housing.

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 a brake. The torque transmitting mechanisms are selectively engageable in combinations of at least two to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.

Abstract: A front wheel drive 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 a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. Each of the clutches and the brakes are located within specific areas defined by the planetary gear sets and the housing walls.

Abstract: A front wheel drive 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 a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing. Each of the clutches and the brakes are located within specific areas defined by the planetary gear sets and the housing walls.

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

Abstract: A transmission 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 selectively engageable in combinations of at least three to establish at least eight forward speed ratios and at least one reverse speed ratio.

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

Abstract: A multi-speed automatic transmission of a planetary design for a motor vehicle, the transmission comprises an input shaft and an output shaft; first, second, third and fourth planetary gear sets; and at least third, fourth, fifth, sixth, seventh and eighth rotatable shafts and first and second brakes and first, second and third clutches whose selective engagement defines different gear ratios between the input shaft and the output shaft such that at least eight forward gears and at least one reverse gear can be implemented. When shifting from one forward gear into one of a successive higher and a successive lower forward gear, only a single one of the first and second brakes and the first, second and third clutches is disengaged and only a single one of the first and second brakes and the first, second and third clutches is engaged.

Abstract: A multi step transmission, of a planetary design, which has an external housing and includes a transmission input shaft and a transmission output shaft. First, second, third and fourth planetary gear sets are each accommodated within the transmission housing along with third, fourth, fifth, sixth, seventh and eighth shafts, and at least six shift elements. The at least six shift elements comprises first and second brakes and first, second, third and fourth clutches, whose selected engagement produces different transmission ratios between the drive shaft and the output shaft such that nine separate forward gears and one reverse gear can be achieved. For each of the forward and reverse gears, only three of the six shift elements are engaged.

Abstract: An automatic transmission includes an input shaft or member, an output shaft or member and three simple and one compound planetary gear assemblies each including a sun gear, a planet gear carrier with a plurality of planet gears and a ring gear. The input shaft or member is coupled to the sun gear of the second planetary gear assembly and the output shaft is coupled to the planet gear carrier of the fourth planetary gear assembly. The transmission also includes six torque transmitting devices: one band brake, three friction brakes and two friction clutches.

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 may include clutches and brakes.

Abstract: The multi step transmission comprising gear sets (P1, P2, P3, P4), eight shafts and six shift elements. The sun gear of set (P1) couples the drive shaft, the carrier of set (P1) couples shaft (3) which couples a housing via brake (03), the drive shaft via clutch (13) and shaft (5) via clutch (35). Shaft (5) couples the ring gear of set (P2), to the sun gears of sets (P3, P4), and the drive shaft couples, via clutch (18), shaft (8) that couples the carrier of set (P4). Shaft (6) couples the ring gear of set (P1) and, via clutch (67), shaft (7) that couples the carrier of set (P2). The sun gear of set (P2) couples the housing. The ring gear of set (P3) couples shaft (4) that couples the housing via brake (04). The output shaft couples the ring gear and carrier of sets (P4, P3) respectively.

Abstract: A multi step transmission comprises planetary gearsets (P1, P2, P3, P4), shafts, and shift elements. The sun gear of gearset (P1) couples shaft (4) which couples housing (G) via brake (04), the carrier of gearset (P1) couples shaft (3) which couples housing (G) via brake (03), the drive shaft via clutch (13), and shaft (5) via clutch (35). Shaft (5) couples the ring gear of gearset (P2) and the sun gear of gearset (P4). Shaft (1) couples the sun gear of gearset (P2) and operatively couples the carrier of gearset (P3). Shaft (6) couples the ring gear and carrier of gearsets (P1, P2) respectively, and operatively couples the sun gear of gearset (P3). The ring gear of gearset (P4) couples housing (G) and output shaft (2) couples the ring gear of gearset (P3), and detachably couples, via clutch (28), shaft (8) which couples the carrier of gearset (P4).

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 selectively engageable in combinations of at least three to establish at least ten forward speed ratios and at least one reverse speed ratio.

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 may include clutches and brakes and are selectively engageable in combinations of at least two to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member.

Abstract: An eight speed automatic transmission is provided having an input member, an output member, four planetary gear sets and five torque transmitting devices. Three of the planetary gear sets are simple and one planetary gear set is compound. Each of the plurality of planetary gear sets has first, second and third members: a sun gear, a ring gear and a planet carrier having a plurality of planet gears rotatably disposed thereon. Three of the torque transmitting devices are clutches and two of the devices are brakes. Eight embodiments of the transmission having different arrangements of the planetary gear sets, clutches and brakes are disclosed.

Abstract: A multi-stage transmission comprising planetary gear sets (P1, P2, P3, P4), shafts, and shift elements. The sun gear of gearset (P1) couples housing (G), the carrier of gearset (P1) couples shaft (3) which couples housing (G), via brake (03), and shaft (1) via clutch (13) and shaft (5) via clutch (35). Shaft (5) couples the ring gear of gearset (P2) and the sun gears of gearsets (P3, P4). Shaft (1) couples the sun gear of gearset (P2) and the carrier of gearset (P3). Shaft (6) couples the carrier of gearset (P2) and the ring gear of gearset (P1), the ring gear of set (P4) couples shaft (4) which couples housing (G) via brake (04), and output shaft (2) couples the carrier of gearset (P4) and shaft (7), which couples, via clutch (27), the ring gear of gearset (P3).

Abstract: A multi step transmission, of a planetary design, which has an external housing and includes a transmission input shaft and a transmission output shaft. First, second, third and fourth planetary gear sets are each accommodated within the transmission housing along with third, fourth, fifth, sixth, seventh and eighth shafts, and at least six shift elements. The at least six shift elements comprises first and second brakes and first, second, third and fourth clutches, whose selected engagement produces different transmission ratios between the drive shaft and the output shaft such that nine separate forward gears and one reverse gear can be achieved. For each of the forward and reverse gears, only three of the six shift elements are engaged.

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

Abstract: A multi-speed transmission for a vehicle is provided with a selectable one-way braking clutch (SOWBC). The transmission has multiple planetary gear sets. Multiple torque-transmitting mechanisms are engagable in different combinations to establish at least one reverse speed ratio and multiple forward speed ratios between an input member and an output member. A selectable one-way braking clutch is configured to brake in one rotational direction and is selectively reversible to brake in an opposite rotational direction, and freewheels in some speed ratios.

Abstract: Various embodiments of electrically-variable transmissions are provided that have two motor-generators, two planetary gear sets, and two torque-transmitting mechanisms, including a rotating-type clutch and a stationary-type clutch. An input member is connected for common rotation with a ring gear of the first planetary gear set. Carriers of both of the planetary gear sets are connected for common rotation with one another, and with an output member. The first motor/generator is connected for common rotation with the sun gear of the first planetary gear set. The second motor/generator is connected for common rotation with the sun gear member of the second planetary gear set. A drive transfer assembly transfers torque from components establishing the first axis of rotation to components establishing the second axis of rotation.

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

Abstract: A transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The transmission input member is connected to a dry launch clutch. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are for example clutches and brakes. A hill hold control strategy is provided for locking the transmission without using the dry launch clutch by selectively engaging combinations of the clutches and brakes.

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 transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The transmission input member is connected to a dry launch clutch. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices are for example clutches and brakes.

Abstract: The present invention relates to a multistage transmission, comprising: a center shaft arranged in a frame such that the center shaft does not rotate; an input member arranged coaxially to the center shaft such that the input member is rotatable; a hub arranged coaxially to the center shaft such that the hub is rotatable; an epicyclic gear set which is coupled to the input member and mounted on the hub, and which is arranged coaxially to the center shaft such that the epicyclic gear set is rotatable, and which has at least two pairs of epicyclic gears, wherein each of the epicyclic gears has a sun gear, a ring gear, a satellite carrier and a pinion; an axial clutch which is involved in the operation of the sun gear which is selectively coupled to or separated from at least one of the peripheral members; a clutch assembly in which at least one of the clutches in a rotating direction are arranged in correspondence with the respective sun gears, wherein said clutches in the rotating direction are involved in the

Abstract: A vehicle speed setting of cruise control is changed based on an operation by a driver. At this time, it is determined whether the vehicle is traveling in a passing lane or a traveling lane (S202). If the vehicle is traveling in a passing lane, the speed at which the vehicle speed setting is changed is increased (S206). If a blinker on the passing lane side of the vehicle is on (S205), the speed at which the vehicle speed setting is changed is also increased (S206) even if the vehicle is traveling in the traveling lane.

Abstract: A multi-stage transmission comprises planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The carriers of gearsets (P1, P2) couple via shaft (4) which couples the sun gear of gearset (P3). The ring gear of the gearset (P1) couples the sun gear of gearset (P2) via shaft (8), which couples drive shaft (1) via clutch (18). The sun gear of gearset (P1) couples housing (G) by shaft (3) via brake (03), and shaft (1) via clutch (13). The ring gear of gearset (P2) couples housing (G) by shaft (5) via brake (05). The sun gear of gearset (P4) couples housing (G). Shaft (6) couples shaft (1) via clutch (16) and carrier of gearset (P3). Shaft (9) couples shaft (4) via clutch (49) and the ring gear of gearset (P4). Output shaft (2) couples the ring gear and the carrier respectively of gearsets (P3, P4).

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.

Abstract: A multi-ratio transmission comprising four planetary gearsets, eight rotary shafts and six shifting elements including first, second, third and fourth clutches and first and second brakes. The shafts either directly couple or selectively couple, via the shifting elements, the gearsets to each other or a housing of the transmission so as to implement nine forward gears and one reverse gear.

Abstract: A front wheel drive 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 a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and brakes arranged within a transmission housing.

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 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 selectively engageable in combinations of at least three to establish at least eight forward speed ratios and at least one reverse speed ratio.

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

Abstract: A multiple speed transmission includes an input and output; a first, second, third and fourth planetary gear sets, each gear set including a sun gear, a ring gear, a carrier, and pinions supported on the carrier and meshing with the sun gear and the ring gear; a first epicyclic gearing assembly including the first gear set, the second gear set, a first clutch, a second clutch, a first brake, and first, second, third and fourth rotating members, said first clutch being operable to couple said first rotating member to the input, said second clutch being operable to couple said second rotating member to the input, and said first brake being operable to hold said fourth rotating member against rotation; and a second epicyclic gearing assembly including the third gear set, the fourth gear set, a third clutch, a second brake, a third brake, and fifth, sixth, seventh and eighth rotating members, the third rotating member being secured to the eighth rotating member, said third clutch being operable to couple said sev

Abstract: A composite planetary transmission section (P) is provided for synthesizing output from a stepless speed changing section (20) with an engine drive force. In a transmission line from the planetary transmission section (P) to an output rotational body (90), there are provided first clutch mechanism (60), a second clutch mechanism (70), a speed-reducing planetary transmission mechanism (80), an operable coupling clutch mechanism (110) and an output clutch mechanism (120). A ring gear (83) of the speed-reducing planetary transmission mechanism (80) includes a brake mechanism (100). A sun gear (43) of the planetary transmission section (P), an input side rotational member (62) of the first clutch mechanism (60), an input side rotational member (71) of the second clutch mechanism (70), a sun gear (84) of the speed-reducing planetary transmission mechanism (80), and an input side rotational member (122) of the output clutch mechanism (120) are rotatable about a common rotational axis.

Abstract: The hybrid transmission has a plurality of members that can be utilized in powertrains to provide eight forward speed ratios and one reverse speed ratio. The hybrid transmission includes a motor/generator, three planetary gear sets, five torque-transmitting devices, three external gear sets and a final drive gear set. The powertrain includes an engine and torque converter that is continuously connected to one of the planetary gear members and an output member that is continuously connected with the final drive gear set. The five torque-transmitting devices provide interconnections between various planetary and external gear members, the input shaft, and the transmission housing, and are operated in combinations of three to establish eight forward speed ratios and one reverse speed ratio.

Abstract: A front wheel drive transmission is provided having a transmission input member, a transmission 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 a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include clutches and a brake arranged within a transmission housing.

Abstract: A transmission is provided having an input member, an output member, three planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes a sun gear member, a planet carrier member, and a ring gear member. The torque transmitting devices include five clutches and one brake arranged within a transmission housing.

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

Abstract: The invention concerns a multi-step transmission with at least 7 forward gears, with which transmission on the input drive shaft (1), two non-shiftable input-side gear sets (RS1, RS2) are provided, which, on their output-side produce two speeds of rotation (n1, n2), which, besides the speed of rotation of the input drive shaft (1), by selective closure of the shift elements (A, B, C, D, E) are shiftable in such a manner to one of the output-side planetary gear sets (RS3, RS4) which upon the output drive shafts (2), that for the shifting from one into the respective next following higher or lower gear of the two activated shift elements, respectively, only one shifting element must be open and a further element closed.