Abstract: The present invention broadly comprises a combination torque transmission system for a vehicle including a planetary gear set in a rotating housing and a gear set device in a stationary housing. The gear set has an input arranged for connection to a torsional output for an engine. The gear set device has an input connected to an output of the planetary gear set. In some aspects, the at least one gear set device is a planetary transmission such as a Ravigneaux gearset, a Simpson gearset, a plurality of simple gearsets, or a Lepelletier six speed arrangement. The gear set device includes a plurality of gear ratios and the planetary gear set is configured to augment the plurality of gear ratios by adding at least one first gear ratio to the plurality of gear ratios. In some aspects, the planetary gear set is configured to double the number of gear ratios.

Abstract: An electrically variable transmission includes a power source, three differential gear sets, first and second motor/generators each connected to at least one of the gear sets, and torque-transmitting mechanisms. An input member transfers power from the power source through the differential gear sets to an output member. The torque-transmitting mechanisms are selectively engageable to provide an input-split first electrically variable mode having equal forward and reverse speed ratios for given input speeds and a compound, power-split second electrically variable mode. Torque provided from the power source is added to torque provided from the second motor generator in both forward and reverse electrically variable modes.

Abstract: A multiple ratio transmission having a planetary primary gear unit producing forward ratios and a reverse ratio, and a planetary auxiliary gear unit in series with the primary gear unit producing a direct drive ratio and either an underdrive ratio or an overdrive ratio. The transmission produces six or seven forward ratios and two reverse ratios by combining the ratios of the primary and auxiliary gear units. Five friction clutches and brakes plus one one-way clutch control operation of the primary unit, and operation of the auxiliary unit is controlled by a clutch and a brake plus one one-way clutch. The same six or seven ratios can be achieved with a total of seven friction clutches and brakes in the primary and auxiliary unit by deleting the one-way clutches.

Abstract: Durability and power transmission efficiency are enhanced in a six-speed powertrain of an automatic transmission by a scheme that includes first to forth planetary gearsets. The first planetary gearset includes a first sun gear, first ring gear, and first carrier. The second planetary gearset includes a second sun gear, a second ring gear, and a second carrier. The third planetary gearset includes operational elements of a third sun gear, a third ring gear, and a third carrier. The fourth planetary gearset includes a fourth sun gear, a fourth ring gear, and a fourth carrier. The powertrain also includes an input shaft, an output gear, and a transmission case.

Abstract: A multi-step transmission comprises an input and output shaft arranged in a housing, three spider supported planetary gear sets, seven rotatable shafts; six switch elements; input occurs via a shaft, in connection with the planet carrier of the first planetary gear set, output occurs via a shaft, in connection with the planet carrier of the second planetary gear set and the planet carrier of the third planetary gear set; a shaft is in connection with the sun gear of the first planetary gear set; a shaft is in connection with the ring gear of the second planetary gear set and the ring gear of the third planetary gear set; a shaft is in connection with the sun gear of the third planetary gear set; a shaft is in connection with the ring gear of the first planetary gear set; a shaft is connected to the sun gear of the second planetary gear set.

Abstract: Durability and power transmission efficiency are enhanced in a six-speed powertrain of an automatic transmission by a scheme that includes first to forth planetary gearsets. The first planetary gearset includes a first sun gear, first ring gear, and first carrier. The second planetary gearset includes a second sun gear, a second ring gear, and a second carrier. The third planetary gearset includes operational elements of a third sun gear, a third ring gear, and a third carrier. The fourth planetary gearset includes a fourth sun gear, a fourth ring gear, and a fourth carrier. The powertrain also includes an input shaft, an output gear, and a transmission case.

Abstract: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and four or five selectable torque-transfer devices (two clutches and two or three brakes). The four or five selectable torque transfer devices are engaged singly or in combinations of two to yield an EVT with a continuously variable range of speeds (including reverse) and four mechanically fixed forward speed ratios. The torque transfer devices and the first and second motor/generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.

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

Abstract: The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and four or five selectable torque-transfer devices. The selectable torque transfer devices are engaged singly or in combinations of two to yield an EVT with a continuously variable range of speeds (including reverse) and three mechanically fixed forward speed ratios. The torque transfer devices and the first and second motor/generators are operable to provide five operating modes in the electrically variable transmission, including battery reverse mode, EVT reverse mode, reverse and forward launch modes, continuously variable transmission range mode, and fixed ratio mode.

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

Abstract: A multi-stage automatic transmission comprises a drive input shaft (AN), a drive output shaft (AB), three planetary gearwheel assemblies (RS1, RS2, RS3) arranged next to one another in series and five shift control elements (A to E). A sun gearwheel (SO3) of the third planetary gearwheel assembly (RS3) can be fixed relative to a transmission housing (GG) via the first shift control element (A). The drive input shaft (AN) is connected to a sun gearwheel (SO2) of the second planetary gearwheel assembly (RS2) and can be connected via the second shift control element (B) to a sun gearwheel (SO1) of the first planetary gearwheel assembly (RS1) and via the fifth shift control element (E) to a web (ST1) of the first planetary gearwheel assembly (RS1).

Abstract: Multiple gear transmission comprising input and output shafts (1, 2), three planetary sets (P1, P2, P3), six rotatable shafts (1, 2, 3, 4, 5, 6) and six shifting elements (03, 04, 05, 14, 16, 56). Selective engagement of the shifting elements produces seven forward and two reverse gears. The input shaft is connected with the sun gear of the first planetary set (P1), the output shaft with the web of the second planetary set (P2), the third shaft (3) with the sun gears of second and third planetary sets (P2, P3), one shaft (4) connects the web of the first planetary set (P1) with the ring gear of the third planetary set (P3), one shaft (5) is connected with the ring gear of the first planetary set (P1), one shaft (6) connects the web of the third planetary set (P3) with the ring gear of the second planetary set (P2).

Abstract: The powertrain includes an arrangement of three single planetary gearsets of which operational elements are wisely interconnected to one another via two clutches and to the transmission via three brakes so as to form six forward speeds and one reverse speed, to be adaptable to a rear wheel drive vehicle.

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

Abstract: A mechanical clutch-controlled planetary transmission employs three planetary gearsets and seven synchronizer clutches to establish fifteen forward speed ratios and seven reverse speed ratios between a transmission input shaft and a transmission output shaft. Two of the planetary gearsets each provide three forward speed ratios including two underdrives and a direct drive, and a third of the planetary gearsets provides a reverse speed ratio, an underdrive speed ratio, a direct speed ratio, and an overdrive speed ratio.

Abstract: A multiple stage transmission of a planetary design having first, second and third planetary gear sets (P1, P2, P3), at least first, second, third, fourth, fifth and sixth rotatable shafts (1, 2, 3, 4, 5, 6), first and second brakes (03, 04) and first, second third and fourth clutches (14, 15, 36, 56). Selective engagement of the planetary gear sets (P1, P2, P3), the rotatable shafts (1, 2, 3, 4, 5, 6), the brakes (03, 04) and the clutches (14, 15, 36, 56) produces different reduction ratios between the drive shaft and the driven shaft such that seven or eight forward gears and at least one reverse gear is achieved.

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

Abstract: A multiple stage transmission in planetary design comprises three planetary gear sets (P1, P2, P3), at least six rotatable shafts (1, 2, 3, 4, 5, 6), at least six shifting elements (03, 04, 13, 16, 45, 56), the drive shaft (1) is permanently connected with the spider of the first planetary gear set (P1) and, via one clutch (16), with the shaft (6) which is connected with the sun gears of the second planetary gear sets (P2) and connectable, via the clutch (56), with the, the driven shaft (2) being connected with the spider of the third planetary gear set (P3), the shaft (3) is permanently connected with the sun gear of the third planetary gear set (P3) and the ring gear of the second planetary gear set (P), via one clutch (13) connectable with the drive shaft (1) and, via one brake (03), attachable to the housing (G) and the sun gear of the first planetary gear set (P1) being non-rotatably connected via one shaft (0) with the housing (G).

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

Abstract: A reduced rotation output unit for outputting a reduced rotation obtained by reducing rotation of an input shaft is arranged at one side of a planetary gear unit in an axial direction, a first clutch and a second clutch interposed between a second rotation element of the planetary gear unit, and a third rotation element and the input shaft are arranged at the other side of the planetary gear unit in the axial direction, and an output member is arranged between the first clutch, the second clutch and the planetary gear unit. Accordingly, it is possible to position the reduced rotation output unit and the planetary gear unit close to each other, and it is possible to make a transmission member that transmits the reduced rotation output from the reduced rotation output unit to the planetary gear unit short.

Abstract: The present invention provides a powertrain of an automatic transmission that includes first, second, and third planetary gear sets. The first planetary gear set has first, second, and third operational elements that occupy sequential positions in a lever diagram. The second planetary gear set has fourth, fifth, and sixth operational elements that occupy sequential positions in the lever diagram. The third planetary gear set has seventh, eighth, and ninth operational elements that occupy sequential positions in the lever diagram.

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

Abstract: The 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, two input clutches, nine, ten or eleven torque transmitting mechanisms and a fixed interconnection. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The torque transmitting mechanisms provide connections between various gear members, the fixed interconnection, the input clutches, the output shaft, and the transmission housing, and are operated in combinations of at least three to establish at least five forward speed ratios and at least one reverse speed ratio.

Abstract: A powertrain includes a power transmission having an input shaft connectable with an engine and a planetary gear unit. The gear unit includes two planes of gears drivingly coupled to one another. A single carrier rotatably supports pinion gears from each plane of gears. A long ring engages the pinion gears from each plane of gears.

Abstract: A multi-stage gearbox with a drive input shaft connected to a reduction planetary gear set, with a drive output shaft connected to a main planetary gear set, and with shift elements. An input speed of the drive input shaft can be transferred, by the engagement of at least seven forward gears to the drive output shaft, in such manner that to shift from one gear to the next-higher or next-lower gear, only one shift element is disengaged and another shift element is engaged. The reduction planetary gear set has an output shaft rotating at an output speed of the reduction planetary gear set. The main planetary gear set is connected to the drive input shaft. The main planetary gear set is connected to the output shaft of the reduction planetary gear set.

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

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

Abstract: A power transmission has three planetary gearsets, which are selectively controlled by five torque-transmitting mechanisms to establish six forward speed ratios and one reverse speed ratio for the transmission. The torque-transmitting mechanisms include piston mechanisms, which are slidably disposed within members of the transmission housing including a front end cover, a rear end cover, and a shell interconnecting the front end cover and the rear end cover.

Abstract: A multi-step reduction gear having a drive shaft (1) connected to a front-mounted gear group (VS) having switch elements (A, B, C, D, E) which is connected to a rear-mounted gear group (NS) having switch elements (M, H, L) by a spacer shaft (2) rotating at an output speed (nvs) of the front-mounted gear group (VS). An input speed (n) of the drive shaft (1) can be transmitted to an output shaft (3) for at least seven forward gears wherein a change from one gear to the next highest or next lowest gear only requires a disconnection of one switch element and a connection of one other switch element.

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

Abstract: A family of transmissions includes three planetary gearsets and five torque-transmitting mechanisms. Each family member may be employed in a powertrain to provide six forward speed ratios and one reverse speed ratio when the torque-transmitting mechanisms are engaged in combinations of two in a selected manner. Each planetary gearset includes three planetary members. The first member of the first planetary gearset is continuously connected with the first member of the second planetary gearset. The second member of the first planetary gearset is continuously connected with a first member of the third planetary gearset. The second member of the second planetary gearset is continuously connected with the second member of the third planetary gearset. An input shaft is continuously connected with one of the members of the planetary gearsets and an output shaft is continuously connected with another member of the planetary gearsets.

Abstract: A multiple-speed transmission for use in an automotive vehicle driveline includes a torque converter, three simple planetary gear units, or two simple planetary gear units and a compound planetary gear unit, friction clutches and brakes, and an optional one-way coupling. The engaged and disengaged states of the friction elements permit the transmission to produce several underdrive speed ratios, a direct drive ratio, and several overdrive speed ratios.

Abstract: An automatic transmission includes a first rotating element provided by coupling a sun gear of a second planetary gear set and a carrier of a third planetary gear set to each other, a second rotating element provided by coupling a carrier of the second planetary gear set and a ring gear of the third planetary gear set to each other, a third rotating element provided by a ring gear of the second planetary gear set, and a fourth rotating element provided by a sun gear of the third planetary gear set.

Abstract: The invention relates to a multi-stage reduction gear by which at least seven speeds can be shifted. Apart from the input shaft (1) and the output shaft (2), the gear consists of a non-engageable upstream gear and an engageable downstream gear in the form of a gear with two fixed links and four shafts. The upstream gear consists of a first planetary gear (3) which, next to the input RPM of the input shaft (1), also provides a second RPM which can be shifted alternatively via a downstream gear. The downstream gear consists of two engageable planetary gears (4, 5) which, with of six shift elements (A to F), can generate a minimum of seven forward speeds, whereby two output paths are formed (P, Q). Thereby, series shifts are always avoided for each shift action.

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 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 three 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 six forward speed ratios and one reverse speed ratio. The transmission family members include four planetary gear sets, two input clutches, seven or eight torque transmitting mechanisms, two fixed interconnections, and one grounded planetary gear member. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even speed ratio changes. The torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input clutches, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least five forward speed ratios and at least one reverse speed ratio.

Abstract: An automatic transmission includes a first rotating element provided by coupling a sun gear of a second planetary gear set and a carrier of a third planetary gear set to each other, a second rotating element provided by coupling a carrier of the second planetary gear set and a ring gear of the third planetary gear set to each other, a third rotating element provided by a ring gear of the second planetary gear set, and a fourth rotating element provided by a sun gear of the third planetary gear set.

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

Abstract: 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, two input clutches, nine, ten or eleven torque transmitting mechanisms and a fixed interconnection. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The torque transmitting mechanisms provide connections between various gear members, the fixed interconnection, the input clutches, the output shaft, and the transmission housing, and are operated in combinations of at least three to establish at least five 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 six forward speed ratios and one reverse speed ratio. The transmission family members include four planetary gear sets, two input clutches, eight or nine torque transmitting mechanisms and four fixed interconnections. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least five 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 six forward speed ratios and one reverse speed ratio. The transmission family members include four planetary gear sets, two input clutches, eight or nine torque transmitting mechanisms and three fixed interconnections. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input clutches, the output shaft, and the transmission housing, and are operated with the input clutches in combinations of three to establish at least six 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 six forward speed ratios and one reverse speed ratio. The transmission family members include four planetary gear sets, two input clutches, eight torque transmitting mechanisms, and three fixed interconnections. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The eight torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input clutches, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least six forward speed ratios and at least one reverse speed ratio. One of the torque transmitting mechanisms may be eliminated to provide at least five 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 six forward speed ratio and one reverse speed ratio. The transmission family members include four planetary gear sets, two input clutches, seven or eight torque transmitting mechanisms, three fixed interconnections, and one grounded planetary gear member. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input clutches, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least five 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 six forward speed ratios and one reverse speed ratio. The transmission family members include four planetary gear sets having two input clutches, eight torque transmitting mechanisms, two fixed interconnections, and one grounded planetary gear member. The invention provides a low content multi-speed dual clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even speed ratio ranges. The eight torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input clutches, the output shaft, and the transmission housing, and are operated along with the input clutches in combinations of three to establish at least six 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 six forward speed ratios and one reverse speed ratio. The transmission family members include four planetary gear sets, two input clutches, eight or nine torque transmitting mechanisms and two fixed interconnections. The invention provides a low content multi-speed dual-clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The nine torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least five forward speed ratios and atleast one reverse speed ratio.

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 four planetary gear sets, two input clutches, eight or nine torque transmitting mechanisms and two fixed interconnections. The invention provides a low content multi-speed dual-clutch transmission mechanism wherein the two input clutches alternately connect the engine to realize odd and even number speed ratio ranges. The nine torque transmitting mechanisms provide connections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of three to establish at least five 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 six forward speed ratios and one reverse speed ratio. The transmission family members include three planetary gear sets having five torque-transmitting mechanisms and two fixed interconnections. The powertrain includes an engine and torque converter that is continuously connected to at least one of the planetary gear members and an output member that is continuously connected with another one of the planetary gear members. The five torque-transmitting mechanisms provide interconnections between various gear members, the fixed interconnections, the input shaft, the output shaft, and the transmission housing, and are operated in combinations of three to establish six forward speed ratios and one reverse speed ratio.

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