Class / Patent application number | Description | Number of patent applications / Date published |
475277000 | With brake for plural sun gears | 65 |
20090054198 | 8-Speed Transmission - The transmission has a plurality of members that can be utilized in powertrains to provide eight forward speed ratios and one reverse speed ratio. The transmission includes three planetary gear sets, six torque-transmitting devices, a split sun gear, two fixed interconnections and a grounded member. 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 another one of the planetary gear members. The six torque-transmitting devices provide interconnections between various gear members, and the transmission housing, and are operated in combinations of two to establish eight forward speed ratios and one reverse speed ratio. | 02-26-2009 |
20090118063 | GEAR AND CLUTCH ARRANGEMENT FOR MULTI-SPEED TRANSMISSION - 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 clutches and brakes arranged within a transmission housing. | 05-07-2009 |
20090215582 | MULTI-SPEED TRANSAXLE FOR A FRONT WHEEL DRIVE VEHICLE - 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. | 08-27-2009 |
20100267516 | MULTI-SPEED TRANSMISSION - 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 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. | 10-21-2010 |
20100304917 | MULTI-SPEED TRANSMISSION - 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 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. | 12-02-2010 |
20110177911 | Planetary gear mechanism for a bicycle - A planetary gear mechanism for a bicycle, and more particularly to a planetary gear mechanism comprising a first planetary mechanism connected coaxially in series to a second planetary mechanism, which second planetary mechanism is connected coaxially in series to a third planetary mechanism, the second planetary mechanism output is a step up in speed from the first planetary mechanism output, the third planetary mechanism output is a step up in speed from the second planetary mechanism output. | 07-21-2011 |
20120172173 | MULTI-SPEED TRANSMISSION - 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 eleven forward speed ratios and at least one reverse speed ratio. | 07-05-2012 |
20130252780 | 9-Speed Planetary-Gear Automatic Transmission - A 9-speed planetary gear-automatic transmission includes precisely one gearbox input element, precisely one gearbox output element, precisely four planetary gear sets and precisely six shifting devices for selecting the individual gears of the planetary gear-automatic transmission. | 09-26-2013 |
20130331219 | Multi-Ratio Transmission System with Parallel Vertical and Coaxial Planet Gears - A multi-ratio transmission system with parallel vertical and coaxial planet gears is provided, including: multiple planet gear sub-systems, a coupling assembly, a setting element, a setting element controller, an annular gear, a cylindrical casing, a sprocket and a central axle. The planet gear sub-systems are disposed coaxially in series along a first axis. Each of the planet gear sub-system includes a sun gear and at least one planet gear. The coupling assembly transmits the rotation between every two adjacent planet gear sub-systems. The setting element optionally engages with the sun gear. The annular gear is engaged to the planet gear of at least one planet gear sub-system. The cylindrical casing encloses the planet gear sub-systems. The sprocket is installed onto the planet gear sub-systems through a one-way clutch. The central axle enables the hollowed tube of the setting element controller to rotate around the central axle. | 12-12-2013 |
20140100073 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio. | 04-10-2014 |
20140106925 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in different combinations to establish a plurality of forward gear ratios and at least one reverse gear ratio. | 04-17-2014 |
20140141927 | INFINITELY VARIABLE DIRECTION CONTROL - Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives a direction control assembly (forward, reverse and neutral) and first and second directional control assemblies to provide a vehicle with zero turn radius. A variable torque converter may be used in various embodiments to control torque from a minimum to a maximum by controlling movement of a rotor along a shaft in relation to a stator. | 05-22-2014 |
20150018162 | MULTI-RATIO TRANSMISSION - The transmission with nine forward and one reverse gear includes four planetary gearsets, eight shafts and six shifting elements, the sun gear of gearset (P | 01-15-2015 |
20150031495 | MULTI-RATIO TRANSMISSION - A multi-ratio transmission with nine forward and one reverse gear. Sun gears of first and third gearsets (P | 01-29-2015 |
20150038283 | AUTOMATIC TRANSMISSION DEVICE - An automatic transmission that changes a relative speed between an input and output member. Four planetary gears are provided, having (i) first to third rotary elements, (ii) fourth to sixth rotary elements, (iii) seventh to ninth rotary elements, and (iv) tenth to twelfth rotary elements. Four couplings are provided between (i) first and sixth rotary elements, (ii) second rotary and ninth rotary elements, (iii) third and eighth rotary elements, and (iv) fifth and twelfth rotary elements. Three clutches are provided between (i) second coupling element and input member, (ii) fourth rotary element input member, and (iii) tenth rotary element and input member. Three brakes are provided at (i) the fourth coupling element, (ii) fourth rotary element, (iii) and seventh rotary element. The output member is connected to the third coupling element. | 02-05-2015 |
20150051044 | MULTI-SPEED GEARBOX - Transmission with four gear sets, shafts and six shift elements. Sun of first set is connected to fifth shaft, which is couplable to housing by second brake and connectable by first clutch to driveshaft, which is connectable to seventh shaft connected by second clutch to carrier of second set and is connectable by third clutch to eighth shaft connected to carrier of first set and to sun of second set. Seventh shaft is connectable to third shaft connected to ring gear of third set by fourth clutch. Sixth shaft is connected to ring gear of second set and carrier of fourth set. Fourth shaft is connected to ring gear of first set and to sun of fourth set and is couplable to housing by first brake. Sun of third set is coupled to housing. Output shaft is connected to carrier of third set and to ring gear of fourth set. | 02-19-2015 |
20150087470 | TRANSMISSION - A transmission includes a housing, four planetary mechanisms, four clutches, two brakes, plural connection members connecting elements of each of planetary mechanisms one another, an input shaft, and an output shaft. A first connection member at which the third clutch is positioned is positioned at an outer periphery side compared to a second connection member connecting a ring gear of the second planetary mechanism and a carrier of the third planetary mechanism. An installation surface to which a third brake braking a rotation of a connection part is addable and which is opposed to an inner periphery surface of the housing is formed at the connection part connecting the third clutch and a ring gear of the third planetary mechanism among the first connection member. | 03-26-2015 |
20150111688 | MULTI-SPEED GEARBOX - Nine-speed multi-stage transmission with four planetary gear sets, rotatable shafts and six shift elements. Sun of first set is connected to fifth shaft which is couplable, via third brake, to housing and is connectable, via first clutch, to drive shaft which is connectable, via second clutch, to seventh shaft which is connected to ring of third set and carrier of second set. Drive shaft is connectable to eighth shaft, via third clutch, connected to carrier of first set and sun of second set. Sixth shaft is connected to ring of second set and carrier of fourth set. Fourth shaft is connected to ring of first set and sun of fourth set and is couplable, via second brake, to housing. Third shaft is connected to sun of third set and is couplable, via first brake, to housing. Output shaft is connected to carrier of third set and ring of fourth set. | 04-23-2015 |
20150323045 | Multistep-Automatic-Transmission - The invention relates to an automatic transmission with nine rotatable shafts ( | 11-12-2015 |
20150354680 | MULTI-SPEED TRANSMISSION WITH LAY SHAFT - A transmission gearing arrangement produces seven forward speed ratios and one reverse speed ratio by selective engagement of two shift elements in various combinations. Some embodiment includes three simple planetary gearsets in conjunction with two axis transfer gear pairs and a layshaft. Another embodiment includes an additional two axis transfer gear pairs and layshaft in place of one of the planetary gearsets. | 12-10-2015 |
20150369341 | Multi-Speed Gearbox - The multi-speed transmission comprises four planetary gear sets eight rotatable shafts and six shifting elements. The sun gear of the first planetary gear set is connected to the fifth shaft, which is attachable to the housing through a third brake. The input shaft is, through a first coupling, connectable to the seventh shaft connected to the sun gear of the third planetary gear set, which is connected to the bar of the first planetary gear set and is connectable to the fourth shaft through a third coupling, which is connected to the sun gear of the second planetary gear set and is attachable to the housing through a second brake. The input shaft is, through a second coupling, connectable to the eighth shaft connected to the sun gear of the fourth planetary gear set and the third shaft is connected to the ring gear of the first planetary gear set, the bar of the second planetary gear set, and the ring gear of the fourth planetary gear set, and is attachable to the housing through a first brake. The sixth shaft is connected to the ring gear of the second planetary gear set and the ring gear of the third planetary gear set. The output shaft is connected to the bar of the third planetary gear set and the bar of the fourth planetary gear set. | 12-24-2015 |
20150377326 | AUTOMATIC TRANSMISSION - An automatic transmission that shifts power applied to an input member and outputs the shifted power to an output member, the automatic transmission including a first planetary gear mechanism, a third planetary gear mechanism, a compound planetary gear mechanism, a first clutch, a second clutch, a third clutch, a fourth clutch a first brake, and a second brake. | 12-31-2015 |
20160017960 | Transmission - A transmission (G) is provided with four planetary gear sets (P | 01-21-2016 |
20160017961 | Transmission - A transmission (G) is provided with four planetary gear sets (P | 01-21-2016 |
20160040755 | Multi-Speed Gearbox - Multi-speed transmission in planetary design, in particular an automatic transmission for a motor vehicle, comprising one drive shaft and one output shaft, which are arranged in a housing, four planetary sets, in each case comprising at least one sun gear, one planetary carrier and one ring gear, along with at least six shifting elements, comprising a first brake, a second brake and a third brake and a first clutch, a second clutch and a third clutch, the selective meshing of which brings about different transmission ratio relationships between the drive shaft and the output shaft, such that at least nine forward gears and one reverse gear can be realized, whereas the planetary carrier of the second and fourth planetary sets is arranged in a manner radially offset to the planetary carriers of the second and the fourth planetary gear sets. | 02-11-2016 |
20160084354 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES - A planetary gear train of an auto transmission for a vehicle may include an input shaft, four planetary gear sets, eight rotational shafts and six friction elements. The rotational shafts connect rotation elements of corresponding first, second, third, and/or fourth planetary gear sets, and one or more rotational shafts are directly or selectively connected to an output shaft or a transmission housing. The six friction elements selectively connect the rotational shafts and selectively connect one or more rotational shafts with the transmission housing. | 03-24-2016 |
20160108997 | AUTOMATIC TRANSMISSION - To simplify the hydraulic pressure supply passage to each clutch, an multistage automatic transmission comprises an input part and output part, three clutches, two brakes, and four planetary gear sets, where the first and fourth sets are of a single pinion type and the second and third of a double pinion type. The input and output parts and the planetary gear sets connect to each other and the clutches and brakes decouple components in such a way that enlargement as a whole of the transmission and the deterioration of the responsiveness of the shift control are controlled. | 04-21-2016 |
20160146295 | MULTI-STAGE TRANSMISSION FOR VEHICLE - A multi-stage transmission for a vehicle may include an input shaft and an output shaft, a first planetary gear device, a second planetary gear device, a third planetary gear device, and a fourth planetary gear device provided between the input shaft and the output shaft to transfer a torque and each including three rotating elements, and at least six shifting elements connected to the rotating elements of the first to fourth planetary gear devices. | 05-26-2016 |
20160146301 | MULTI-STAGE TRANSMISSION FOR VEHICLE - A multi-stage transmission for a vehicle may include an input shaft and an output shaft, a first planetary gear device, a second planetary gear device, a third planetary gear device, and a fourth planetary gear device provided between the input shaft and the output shaft to transfer a torque and each including three rotating elements, and at least six shifting elements connected to the rotating elements of the first to fourth planetary gear devices. | 05-26-2016 |
20160146302 | MULTI-STAGE TRANSMISSION FOR VEHICLE - A multi-stage transmission for a vehicle may include an input shaft and an output shaft, a first planetary gear device, a second planetary gear device, a third planetary gear device, and a fourth planetary gear device provided between the input shaft and the output shaft to transfer a torque and each including three rotating elements, and at least six shifting elements connected to the rotating elements of the first to fourth planetary gear devices. | 05-26-2016 |
20160160963 | MULTI-SPEED AUTOMATIC TRANSMISSION - A multi-speed automatic transmission may include a first planetary gear set connected to a transmission input shaft, a second planetary gear set connected to the first planetary gear set, a third planetary gear set connected to the second planetary gear set, a fourth planetary gear set connected between the third planetary gear set and a transmission output shaft, and six friction elements configured to selectively couple and decouple a connection among the first to fourth planetary gear sets to generate various gear ratios between the transmission input shaft and the transmission output shaft to implement a plurality of gear stages, in which at least three of the six friction elements are selectively coupled and operated at each gear stage. | 06-09-2016 |
20160169336 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLE | 06-16-2016 |
20160169338 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES | 06-16-2016 |
20160169341 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES | 06-16-2016 |
20160169342 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLE | 06-16-2016 |
20160169344 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLE | 06-16-2016 |
20160169345 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLE | 06-16-2016 |
20160169347 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLES | 06-16-2016 |
20160186837 | Transmission for a Motor Vehicle - The invention relates to a transmission, in particular a multi-speed transmission for a motor vehicle, comprising one housing, one drive shaft, one output shaft, at least four planetary gear sets, whereas each of the planetary gear sets has one sun gear, at least one planet, one planetary gear carrier and one ring gear along with several shifting elements in the form of at least four clutches and at least two brakes, whereas the sun gears of at least two planetary gear sets, in particular the sun gears of the first and the second planetary gear sets, are connectable through the first brake to the housing. | 06-30-2016 |
20160201764 | Multi-Stage Planetary Transmission | 07-14-2016 |
475278000 | And brake for carrier | 25 |
20080293536 | PLANETARY TRANSMISSION WITH A DISK CLUTCH OR A DISK BRAKE - A transmission with a planetary gearset including planetary gears supported on a carrier, with a disk clutch or brake including a disk carrier which, via an integral cylindrical portion, is fixed to a shaft that supports the disk carrier, such that the carrier rotates on the cylindrical portion and the carrier is supported by a first axial bearing on the disk carrier and a second axial bearing on a sun gear, which engages the planetary gears, and with an oil supply for lubricating and/or cooling bearings, disk clutch and/or brake components. The first axial bearing includes rollers guided in a cage and first check-disk adjacent the carrier and a second check-disk rollers. The first check-disk flanged disk with a section for rollers of the first axial bearing and with a cylindrical section offset from the rolling section. | 11-27-2008 |
20080305918 | SEVEN SPEED TRANSMISSION WITH SIX TORQUE-TRANSMITTING MECHANISMS AND THREE PLANETARY GEAR SETS - A multi-speed transmission is provided that includes three planetary gear sets and seven torque-transmitting mechanisms with various fixed interconnections to provide seven forward speed ratios and one reverse speed ratio. The first planetary gear set is a dual sun planetary and the torque-transmitting mechanism engagement schedule is designed so that, in the reverse speed ratio, a predetermined speed ratio is achieved at the second sun gear member in the dual sun planetary and the input member, and, in the first forward speed ratio, the same magnitude predetermined speed ratio is achieved between the second sun gear member and the input member, but with the second sun gear member rotating in an opposite direction as in the reverse speed ratio. | 12-11-2008 |
20090118064 | POWER TRAIN OF AUTOMATIC TRANSMISSION - A power train of an automatic transmission realizes nine forward speeds and two reverse speeds. In the power train of this invention, an output unit selectively receives reduced rotation speed from a speed reduction unit or selectively receives rotation speed of an input shaft and generates the nine forward speeds and two reverse speeds by operation of five clutches and three brakes. | 05-07-2009 |
20100267517 | MULTI-SPEED TRANSMISSION - 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 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. | 10-21-2010 |
20100273600 | AUTOMATIC TRANSMISSION - An automatic transmission includes first to third single-pinion planetary gearsets. The second ring gear and third sun gear are coupled to the first carrier and first ring gear respectively to constitute first and second rotor units. Input and output shafts are coupled to the second sun gear and third ring gear respectively. A first clutch selectively holds the first sun gear to the third carrier. A first brake selectively holds the first sun gear stationary. A second clutch selectively holds the second sun gear to the third carrier. A third clutch selectively holds the second carrier to the second rotor unit. A fourth clutch selectively holds the second carrier to the third carrier. A second brake selectively holds the first rotor unit stationary. At least eight gear ratios and one reverse gear ratio are obtained by simultaneous application of three of the clutches and brakes. | 10-28-2010 |
20100273601 | AUTOMATIC TRANSMISSION - An automatic transmission including three single pinion planetary gearsets and six friction elements, in which an input shaft is always connected to a first sun gear of a first planetary gearset, the output shaft is always connected to a second ring gear of a second planetary gearset, a third sun gear of a third planetary gearset is always kept in a fixed state relative to a transmission case of the automatic transmission, a first ring gear of the first planetary gearset and a third pinion carrier of the third planetary gearset are always connected to each other and constitute a first rotary member, and at least eight forward speeds and one reverse speed are respectively established by simultaneous engagements of three friction elements selected from the six friction elements. | 10-28-2010 |
20100331138 | EIGHT TO THIRTEEN SPEED AUTOMATIC TRANSMISSION - An eight, nine, eleven or thirteen speed automatic transmission has an input and output, four planetary gear assemblies, four connecting members for coupling certain elements of the planetary gear assemblies to other elements, four brakes for selectively connecting certain elements of the planetary gear assemblies to ground and three friction clutches for selectively connecting certain elements of the planetary gear assemblies to other elements. Sequenced operation of the brakes and clutches provides, eight, nine, eleven or thirteen forward speeds or gear ratios and reverse. | 12-30-2010 |
20110009230 | AUTOMATIC TRANSMISSION - An automatic transmission includes a single-pinion first planetary gear mechanism including a first sun gear, a first ring gear, and a first carrier that each correspond to one of first to third elements in a velocity diagram. A double-pinion second planetary gear mechanism includes a second sun gear, a second ring gear, and a second carrier that each correspond to one of fourth to sixth elements in a velocity diagram. The fifth element is connected to the second element to form a first connected body that is connected to an input shaft. A single-pinion third planetary gear mechanism includes a third sun gear, a third ring gear, and a third carrier that each correspond to one of seventh to ninth elements in a velocity diagram. The eighth element is connected to an output member, and the ninth element is connected to the third element to form a second connected body. | 01-13-2011 |
20130267373 | MULTI-SPEED TRANSMISSION - A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio. One of the torque transmitting devices includes a friction clutch disposed in parallel with a binary clutch. | 10-10-2013 |
20140057753 | MULTI-SPEED TRANSMISSION - 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 include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish a plurality forward speed ratios and at least one reverse speed ratio. | 02-27-2014 |
20150045174 | MULTI-STAGE PLANETARY VEHICLE TRANSMISSION - A multi-gear transmission of a vehicle having a housing in which four planetary gearsets and a plurality of shafts and shifting elements are arranged. The drive input shaft can couple the sun gears of gearsets (RS | 02-12-2015 |
20150080168 | MULTI-SPEED GEARBOX - A four-stage multi-stage transmission in which carrier of first gear set and ring gear of fourth gear set can be coupled to housing via first brake or to drive shaft via first clutch. Sun of first gear set can be coupled to housing via second brake. Ring gear of first gear set and sun of second gear set can be coupled to drive shaft via second clutch. Drive shaft can be coupled to ring gear of second gear set via third clutch. Carrier of second gear set is permanently connected to carrier of fourth gear set, and carrier of third gear set and sun of fourth gear set are permanently connected to drive shaft. By varying further couplings within the multi-stage transmission, a set of gears having similar properties is provided. | 03-19-2015 |
20150087471 | MULTI-SPEED GEARBOX - Nine gear transmission with four planetary gear sets, rotatable shafts and six shift elements. Sun of first set is connected to fifth shaft connected to sun of second set and is couplable to housing by third brake. Drive shaft is releasably connected by first clutch to fourth shaft connected to carrier of second set and is couplable by second brake to housing. Drive shaft is connectable by of second clutch to seventh shaft connected to ring of second set and sun of third set and is connectable by of third clutch to eighth shaft connected to ring of fourth set and carrier of third set. Shaft ( | 03-26-2015 |
20150087472 | MULTI-SPEED GEARBOX - Transmission comprising four planetary gear sets, shafts and six shift elements. Sun of first set is connected to fifth shaft, which is connected to sun of second set and is couplable to housing by second brake. Driveshaft is connectable by first clutch to fourth shaft connected to carrier of second set and is couplable by first brake to housing. Driveshaft is connectable by second clutch to seventh shaft connected to ring gear of second set and sun of third set, and is connectable by third clutch to eighth shaft connected to carrier of third set. Eighth shaft is connectable by fourth clutch to third shaft connected to ring gear of fourth set. Sixth shaft is connected to ring gear of third set and carrier of first set. Sun of fourth set is coupled to housing. Output shaft is connected to carrier of fourth set and ring gear of first set. | 03-26-2015 |
20150111689 | MULTI-SPEED GEARBOX - A multi-speed transmission in which a sun gear of a fourth planetary gear set is connected with the housing in a non-rotatable manner, a ring gear of a first planetary gear set is permanently connected with a ring gear of the fourth planetary gear set, a sun gear of the first planetary gear set and a sun gear of a second planetary gear set can be coupled with the housing, via a first brake, a carrier of the first planetary gear set can be coupled with the housing, via a second brake, and the output shaft can be coupled with a carrier of the fourth planetary gear set, via a first clutch. Variations of other couplings within the multi-speed transmission forms a set of transmissions having similar properties. | 04-23-2015 |
20150126325 | MULTI-SPEED GEARBOX - A multi-stage transmission in which carrier of first gear set is connected to ring gear of fourth gear set, ring gear of first gear set and carrier of second gear set can be coupled to housing via first brake or to drive shaft via first clutch. Sun of first gear set and sun of second gear set can be coupled to housing via second brake. Sun of third gear set and sun of fourth gear set can be coupled to housing via third brake. Drive shaft can be coupled to ring gear of second gear set via second clutch. Ring gear of third gear set and carrier of fourth gear set can be coupled to drive shaft via third clutch, and output shaft is connected to carrier of third gear set. | 05-07-2015 |
20150141195 | MULTI-SPEED GEARBOX - Multi-stage transmission comprises four planetary gear sets, rotatable shafts and six shift elements. Sun of first set is connected to fifth shaft which is connectable, via first clutch, to drive shaft and is couplable, via third brake, to housing. Drive shaft is connectable, via second clutch, to seventh shaft which is connectable to carrier of fourth set and ring of third set and is connectable, via third clutch, to eighth shaft which is connected to sun of second. Sixth shaft is connected to ring of first set, carrier of second set and ring of fourth set. Third shaft is connected to sun of third set and sun of fourth set and can be coupled, via first brake, to housing. Fourth shaft is connected to carrier of first set and ring of second set and is couplable, via second brake, to housing. Drive shaft is connected to carrier of third set. | 05-21-2015 |
20150316128 | Multi-Speed Transmission - A family of transmission gearing arrangements produces up to nine forward and one reverse speed ratios by selective engagement of three shift elements in various combinations. Each disclosed transmission includes four planetary gear sets and six elements. Two of the arrangements feature planetary gear sets that are separated radially and are particularly suited to applications that require reduced axial length. | 11-05-2015 |
20160040757 | Transmission for a Motor Vehicle - The invention relates to a transmission, in particular a multi-speed transmission for a motor vehicle, comprising a housing, a drive shaft, an output shaft, at least four planetary gear sets, whereas each of the planetary gear sets comprises one sun gear, at least one planet, one planetary carrier and one ring gear, along with several shift elements in the form of at least four clutches and at least two brakes, whereas the drive shaft is connectable through the third clutch to the first brake and to the sun gear of the first planetary gear set and to the sun gear of the second planetary gear set, and whereas the ring gear of the first planetary gear set is connected to the planetary carrier of the fourth planetary gear set, and whereas the planetary carrier of the fourth planetary gear set is connectable through the fourth clutch to the drive shaft, and whereas the sun gear of the fourth planetary gear set is connected to the housing, and whereas the second brake is connected to the planetary carrier of the first planetary gear set. | 02-11-2016 |
20160047443 | AUTOMATIC TRANSMISSION FOR VEHICLES - An automatic transmission for a vehicle includes: the input shaft being constantly connected to the second element, arranged to be connected to the second sun gear by an engagement of the first clutch, and arranged to be engaged with the third sun gear by an engagement of the second clutch, the output member being constantly connected to the second ring gear, the first element being arranged to be fixed to the stationary portion by an engagement of the first brake, the third element being constantly connected to the second pinion carrier, and arranged to fixed to the stationary portion by an engagement of the second brake, and the third sun gear being arrange to be fixed to the stationary portion by an engagement of the third brake. | 02-18-2016 |
20160069430 | Multi-Speed Transmission - A family of transmission gearing arrangements produces at least nine forward speed ratios and one reverse speed ratio by selective engagement of three shift elements in various combinations. Each disclosed transmission includes four planetary gear sets, three brakes, and either three or four clutches. One embodiment produces twelve forward speed ratios and two reverse speed ratios. Another embodiment produces thirteen forward speed ratios. | 03-10-2016 |
20160084353 | MULTI-SPEED GEARBOX - The multi-stage transmission comprises four planetary gear sets, eight rotatable shafts and six shift elements. Sun of first set is connected to fifth shaft which is couplable, via third brake, to housing. Drive shaft is connectable, via first clutch, to fourth shaft connected to ring of first set and carrier of second set and which is couplable, via second brake, to housing. Drive shaft is connectable, via second clutch, to seventh shaft connected to carrier of fourth set and ring of third set and is connectable, via third clutch, to eighth shaft connected to sun of second set. Sixth shaft is connected to carrier of first set, ring of second set and ring of fourth set. Third shaft is connected to sun of third set and sun of fourth set and is couplable, via first brake, to housing. Drive shaft is connected to carrier of third set. | 03-24-2016 |
20160091058 | MULTI-STAGE AUTO TRANSMISSION FOR VEHICLE - A multi-stage auto transmission for a vehicle may include first, second, third and fourth planetary gear sets each including first, second and third rotating elements, friction members including first, second and third clutches and first, second and third brakes, an input shaft to which rotation power is inputted, and an output shaft from which the rotation power is outputted. By selectively, or continuously connecting the rotating elements of the planetary gear sets to the input shaft, the output shaft or each other, the multi-stage auto transmission implements ten forward speeds and one reverse speed. | 03-31-2016 |
20160146300 | MULTI-STAGE TRANSMISSION FOR VEHICLE - A multi-stage transmission for a vehicle may include an input shaft and an output shaft, a first planetary gear device, a second planetary gear device, a third planetary gear device, and a fourth planetary gear device provided between the input shaft and the output shaft so as to transfer a torque and each including three rotating elements, and at least six shifting elements connected to the rotating elements of the first to fourth planetary gear devices. | 05-26-2016 |
20160169332 | PLANETARY GEAR TRAIN OF AUTOMATIC TRANSMISSION FOR VEHICLE | 06-16-2016 |