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Planetary Gear Transmission Systems Or Components > With Means To Vary Drive Ratio Or Disconnect Drive (e.g., Brake Or Clutch) > Plural Elements Selectively Braked > Transmission Includes Three Relatively Rotatable Sun Gears Transmission Includes Three Relatively Rotatable Sun GearsTransmission Includes Three Relatively Rotatable Sun Gears patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/11/07 - 20070010369 - Multi-speed planetary transmissions having a stationary member and seven torque-transmitting devices 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 ... 01/11/07 - 20070010368 - Multi-speed planetary transmissions having seven torque transmitting devices engaged in combinations of five 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 one interconnecting member. The powertrain includes an engine ... 01/11/07 - 20070010367 - Multi-speed planetary transmissions having seven torque-transmitting devices engaged in combinations of two 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 ... 01/04/07 - 20070004551 - Multi-speed planetary power transmission A power transmission for use in a powertrain has an input shaft, an output shaft, an input planetary gearset, and an output planetary gearset. The planetary gearsets are controlled through the selective engagement of seven torque-transmitting mechanisms, three of which are rotating-type torque-transmitting mechanisms and four of which are stationary-type ... 12/14/06 - 20060281600 - Six-speed powertrain of automatic transmission for vehicle Shortened length, light weight, enhanced durability, and reduced power loss may be achieved when a powertrain of an automatic transmission is formed by combining one single pinion simple planetary gear set and two double pinion simple planetary gear sets. Two simple planetary gear sets are combined to form a compound ... 11/30/06 - 20060270515 - Automatic transmission control method and system having fail-safe function In an automatic transmission control system and method, an electronic control unit is programmed to output a command to establish another gear stage different from the gear stage at the time of occurrence of fault-induced disengagement by combination of engagements of the friction elements other than the friction elements to ... 11/30/06 - 20060270514 - Automatic transmission An automatic transmission includes a planetary gear train of first, second, third and fourth planetary gears; an input rotation member connected with a ring gear of the second planetary gear; and a first connection member connecting a carrier of the second planetary gear and a ring gear of the fourth ... 11/30/06 - 20060270513 - Multi-speed transmission A transmission is provided having at least three planetary gearsets, each having respective first, second, and third members, and six selectively engageable torque transmitting devices configured to selectively interconnect selected members of the planetary gearsets for unitary rotation thereby to provide at least six forward speed ratios and at least ... 11/23/06 - 20060264296 - Four branch differential transmission systems The four branch differential Transmission System, (“FBD”), comprises a first input shaft and a second output shaft. Furthermore there are third and fourth shafts which are respectively connected to first and second variators which control the speed (or torque) of the shaft, to which they are connected. Each variator can, ... 11/09/06 - 20060252594 - Multi-speed planetary transmissions having three interconnected gear members and multiple input clutches 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 ... 08/03/06 - 20060172851 - Multistage automatic transmission with three planetary gear sets A multi-stage automatic transmission possesses an input drive shaft (AN), an output drive shaft (AB), three single planetary gear sets (RS1, RS2, RS3) as well as five shifting elements (A to E), via the pairwise selective closure of which, an entry speed of rotation of the input drive shaft (AN) ... 06/29/06 - 20060142112 - Multi-speed transmission for vehicle A transmission can be provided which achieves multiple speeds while maintaining good balance of gear ratio steps between gears by having a first clutch which selectively connects a first intermediate output member and a fourth rotating element RE4 together, a second clutch which selectively connects an input shaft and a ... 05/18/06 - 20060105879 - Multi-stage automatic transmission with three planetary gearwheel assemblies 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 ... 05/11/06 - 20060100055 - Six-speed powertrain of an automatic transmission A six-speed powertrain of an automatic transmission includes a first single pinion planetary gear set having a first sun gear, two first planet carriers, a first planetary gear, and a first ring gear. A second single pinion planetary gear set has a second sun gear, a second planetary gear, and ... 05/04/06 - 20060094559 - Automatic speed changer A planetary gear unit PR and a clutch C3 for outputting reduced speed rotation and a clutch C1 for connecting and disconnecting input of rotation of an input shaft to a sun gear S2 are located on one axial side of a planetary gear unit PU, and a clutch C2 ... 04/13/06 - 20060079371 - Planetary transmissions having two interconnecting members and at least two input clutches 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. ... 03/30/06 - 20060068966 - Multi-speed planetary transmission A multi-speed planetary transmission incorporates three planetary gearsets and six torque-transmitting mechanisms to provide six forward speed ratios and two reverse speed ratios. The torque-transmitting mechanisms include three rotating type torque-transmitting mechanisms and three stationary type torque-transmitting mechanisms. The planetary gearsets are interconnected with each other and the other planetary ... 03/30/06 - 20060068965 - Multi-stage transmission A multi-stage transmission comprises one input shaft (1) and one output shaft (2), three single-web planetary gear sets, seven rotatable shafts, six shifting elements, the selective engagement implements eight forward gears and two reverse gears, the input results by shaft (1) connected with the web of the first planetary gear ... 03/23/06 - 20060063635 - Six-speed powertrain of an automatic transmission Durability and power transmission efficiency are enhanced in a six-speed powertrain of an automatic transmission by a scheme that includes first to fourth planetary gearsets respectively having operational elements of a sun gear, a ring gear, and a carrier, in which the operational elements of the planetary gearsets are wisely ... 03/09/06 - 20060052213 - Six-speed powertrain of an automatic transmission Durability and power transmission efficiency are enhanced in a six-speed powertrain of an automatic transmission by a scheme that includes first to fourth planetary gear sets respectively having operational elements of a sun gear, a ring gear, and a carrier, in which the operational elements of the planetary gear sets ... 03/09/06 - 20060052212 - Six-speed powertrain of an automatic transmission 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 ... 03/09/06 - 20060052211 - Six-speed powertrain of an automatic transmission 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 ... 03/09/06 - 20060052210 - Six-speed powertrain of an automatic transmission 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 ... 03/09/06 - 20060052209 - Six-speed powertrain of an automatic transmission 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 ... 03/09/06 - 20060052208 - Six-speed powertrain of an automatic transmission 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 ... 02/23/06 - 20060040784 - Planetary transmissions having three gear sets and input clutches 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 two fixed interconnecting members. The powertrain includes an ... 02/23/06 - 20060040783 - Planetary transmissions having a stationary member and three interconnected gear members 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, one interconnecting member, and a grounded planetary gear member. ... 01/26/06 - 20060019793 - Planetary transmissions having one interconnecting member and an input member 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 a fixed interconnection. The powertrain includes an engine ... 01/26/06 - 20060019792 - Planetary transmissions having a stationary member and at least two input clutches 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, an interconnecting member, and a grounded planetary gear member. ... 01/26/06 - 20060019791 - Planetary gearing for a dual clutch transmission A multiple speed transmission includes first and second input clutches driveably connected to an input, and a gear system that includes four planetary gear units, each gear unit including a sun gear, a ring gear, planet pinions meshing with the sun gear and ring gear, and a carrier rotatably supporting ... 12/22/05 - 20050282680 - Multiple speed automatic transmission for a vehicle A multiple speed automatic transmission having eight forward speeds and one reverse speed is realized by combining two simple planetary gear sets and one compound planetary gear set by five clutches and two brakes. Power is delivered efficiently and fuel consumption is enhanced due to the increased number of speeds ... 12/22/05 - 20050282679 - Planetary transmissions having three interconnected gear sets and clutched input 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 interconnecting members. The powertrain includes an ... 11/17/05 - 20050255958 - Automatic transmission A multi-step reduction gear with forward reverse gears comprising a drive shaft, a power take-off shaft, three planet sets, rotating shafts as well as six switch elements. The drive shaft is connected with the sun gear of the planetary set and can be connected to the shaft, which is connected ... 11/10/05 - 20050250615 - Wide ratio transmissions with a fixed interconnecting member and a stationary planetary member 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 a fixed interconnecting member. The powertrain includes an ... 11/03/05 - 20050245345 - Wide ratio transmissions with a fixed interconnecting member and at least six clutches 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 a fixed interconnecting member. The powertrain includes an ... 11/03/05 - 20050245344 - Automatic speed changer A first planetary gear unit PR and a clutch C3 for outputting reduced speed rotation are located on one axial side of a second planetary gear unit PU, and a clutch C1 for connecting and disconnecting an input shaft 2 to/from a sun gear S2 and a clutch C2 for ... 11/03/05 - 20050245343 - Multi-speed gearbox The multi-speed transmission comprises one input shaft and one output shaft located in one housing, three one-spider planetary gear sets, seven rotatable shafts as well as six shifting elements, the selective engagement of which implements seven forward gears and one reverse gear. The input drive results by one shaft connected ... 10/27/05 - 20050239593 - Multi-speed gearbox A multi-step reduction gear includes a drive shaft, output shaft, three single rod planetary gears, seven rotational shafts and six shifting elements, whose selective engagement realizes seven forward gears and one reverse gear, whereby the drive takes place through a shaft, which is continuously connected with the sun wheel of ... 10/13/05 - 20050227806 - Seven-speed transmission A seven-speed transmission includes an input shaft, an output shaft, and three planetary gear sets. An interconnecting member continuously connects members of the second and third planetary gear sets. Six torque-transmitting mechanisms are provided between the planetary gear sets and a transmission housing. The six torque-transmitting mechanisms are engaged in ... 10/13/05 - 20050227805 - Wide ratio transmissions with two fixed interconnecting members 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 two fixed interconnecting members. The powertrain includes an ... 09/29/05 - 20050215381 - Wide ratio transmissions with three interconnected planetary gear sets and a stationary member 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, one fixed interconnection and one grounded planetary gear member. ... 09/29/05 - 20050215380 - Wide ratio transmissions with three interconnected planetary gear sets and at least one brake 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 a fixed interconnection. The powertrain includes an engine ... 09/29/05 - 20050215379 - Wide ratio transmissions having three planetary gear sets and three brakes 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 ... 09/22/05 - 20050209043 - Multi-speed gearbox The multi-step reduction gear includes a drive shaft and an output shaft, having three single rod planetary gears, seven rotating shafts and six shifting elements, whose selective engagement realizes seven forward gears and one reverse gear, the drive takes place through a shaft, connected with the sun wheel of the ... 09/15/05 - 20050202924 - Transmission arrangement for a motor vehicle The invention relates to a transmission arrangement, particularly for a motor vehicle, comprising at least one set of planetary gears and at least one dry clutch or a dry transmission brake. The inventive transmission arrangement allows advantages of the automatic transmission to be combined with the energy-saving clutches and transmission ... 09/01/05 - 20050192150 - Six-speed powertrain of an automatic transmission for a vehicle 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. ... 08/18/05 - 20050181906 - Six-speed powertrain of an automatic transmission 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 ... 08/11/05 - 20050176552 - Wide ratio transmissions with a stationary planetary gear member and at least five clutches 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 two fixed interconnecting members. The powertrain includes an ... 08/11/05 - 20050176551 - Wide ratio transmissions with three interconnected planetary gear sets 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 ... 08/11/05 - 20050176550 - Wide ratio transmissions with three planetary gear sets and two brakes 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 ... 06/16/05 - 20050130787 - Wide ratio transmissions with three interconnected planetary gear members 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 two fixed interconnecting members. The powertrain includes an ... ### FreshPatents.com Support |