Nonplanetary Variable Speed Or Direction Transmission Combined With Planetary Transmission Patents (Class 475/207)
  • Patent number: 11118659
    Abstract: A power transmission apparatus for a hybrid electric vehicle may include first and second input shafts coaxially mounted and selectively receiving an engine torque, a compound planetary gear set mounted on the second input shaft, receiving a motor torque, and formed by combining two planetary gear sets sharing a sun gear and a planet carrier, an idle shaft mounted in parallel with the first input shaft, a first output shaft mounted in parallel to the first input shaft, receiving a torque from at least the first input shaft, and outputting a torque through the first output gear, a connection element selectively transmitting the engine torque to the compound planetary gear set or the first input shaft, an engagement element selectively connecting the compound planetary gear set to a transmission housing, and a plurality of gear sets mounted on the first and second input shafts and idle shaft and the first output shaft.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: September 14, 2021
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Seong Wook Hwang, Soonki Eo, Ilhan Yoo, Dongwoo Kim, Yong Sug Choi, Jong Hyo Park
  • Patent number: 11078990
    Abstract: A self-locking apparatus for a gear set permits forward-driving an input in clockwise or counterclockwise directions and substantially prevents an output from being driven in either or both of those directions. The device includes a gear set with planet gears arranged within a planet carrier within a fixed ring gear. Each of the planet gears is engaged with the planet carrier via a differentiating connector retained in an elongated slot in the planet carrier where it moves to the clockwise position when being forward driven in the clockwise direction and, when the planet carrier is back driven in the clockwise direction, the connector moves to the counter-clockwise position in the slot. This arrangement allows the gear set to be forward driven but not back driven. This differentiated action can engage/disengage with any form of unidirectional engage/disengage mechanism. The apparatus is useful in industrial applications requiring self-locking gear sets.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 3, 2021
    Assignee: WEDGEROCK LLC
    Inventor: Thomas C. West
  • Patent number: 10974593
    Abstract: A powertrain for a vehicle includes a housing, a motor generator unit, a torque converter, a first and second shafts, a first and second gear sets, and a torque transmitting mechanism. The motor generator unit includes an output member. The torque converter includes a pump and a turbine. The pump is connected for common rotation with the output member of the motor generator unit. The first shaft rotatably is supported by the powertrain housing and is connected for common rotation with the turbine of the torque converter. The second shaft is rotatably supported by the powertrain housing and disposed parallel to the first shaft. An output gear is connected for common rotation to the second shaft.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: April 13, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Chengwu Duan, Jian Yao
  • Patent number: 10968986
    Abstract: An electric vehicle includes a disc fixed to a housing. The electric vehicle also includes a first shaft connected to a motor and rotatable by the motor, and a second shaft connected to a wheel and spaced apart from the first shaft. Further, the electric vehicle includes a hub press-fitted to an outer circumference of the second shaft, and a sleeve spline-coupled with an outer circumference of the hub. The sleeve is slidable between the first shaft and the disc. The electric vehicle operates in any one of a driving mode, a neutral mode, and a parking mode according to a position of the sleeve.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 6, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Changwoo Sung, Yoonuk Kim, Junggu Lee
  • Patent number: 10690238
    Abstract: Provided are a variator and a transmission controller in an engine-driven vehicle. The transmission controller has an instantaneous interruption recovery control portion configured to, upon a power reset from an instantaneous interruption during running, set a target through transmission ratio and a desired through transmission ratio to a lowest transmission ratio value by initialization and perform recovery control to recover an actual through transmission ratio of the variator to a transmission ratio value for shifting to normal control. The instantaneous interruption recovery control portion is further configured to, upon the power reset from the instantaneous interruption during the running, set a change speed of the target through transmission ratio from the lowest transmission ratio value to the desired through transmission ratio, to be higher than that under the normal control, before a time at which the desired through transmission ratio value deviates from the lowest transmission ratio value.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 23, 2020
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Yasunori Ishii, Tetsuya Izumi, Sungpil Ryu, Hiroki Iwasa, Hironori Miyaishi
  • Patent number: 10605357
    Abstract: A control system for a transmission reverser, which includes an output shaft, an output gear, a reverse gear, a forward clutch, an input power clutch, a first reverse disconnect device, and a second reverse disconnect device, has one or more controllers with processing and memory architecture configured to execute control logic to control the transmission reverser in a start-up mode, a forward mode and a reverse mode. In the start-up mode, the one or more controllers command the input power clutch and the first reverse disconnect device to simultaneously engage momentarily to apply an engagement torque to the second reverse disconnect device.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 31, 2020
    Assignee: DEERE & COMPANY
    Inventors: Clayton P. Neumann, Mehawesh Alkhalil
  • Patent number: 10605344
    Abstract: A gearing arrangement that offers a new way to operate an electric motor at a favorable operating point is provided. To this end there is proposed a gearing arrangement (1) for an electric motor (6) of a vehicle (2), including an input interface (5) for coupling to the electric motor (6) and including an output interface (7), such that a drive torque path runs between the input interface (5) and the output interface (7); including a first transmission gearing stage (10) with a first transmission ratio (i1), such that the drive torque path in a first operating state of the gear arrangement (1) runs via the first transmission gearing stage (10); and including a second transmission gearing stage (11), such that the drive torque path in a second operating state of the gear arrangement (1) runs via the second transmission gearing stage (11), the second transmission gearing stage (11) having a continuously variable transmission ratio (i1 . . . i2).
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: March 31, 2020
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Thomas Mehlis, Andreas Kinigadner
  • Patent number: 10550936
    Abstract: A stepless transmission capable of operating continuously having a supportive rotating element; a plurality of transmission spheres disposed on the supportive rotating element; a plurality of driving rods rotatably connected to the transmission spheres; a power input clamping rotating element; a power output clamping rotating element, wherein the transmission spheres are disposed between the power input clamping rotating element, power output clamping rotating element and supportive rotating element; an accelerating planet gear train; a first decelerating planet gear train; a transmission shaft; a first one-way transmission rotating element connected between the transmission shaft and a carrier of the planet gear train; a second one-way transmission rotating element connected between the carrier of the planet gear train and a first carrier of the first decelerating planet gear train. Therefore, the stepless transmission capable of operating continuously to transmit power instantly and steadily.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: February 4, 2020
    Assignee: MOTIVE POWER INDUSTRY CO., LTD.
    Inventor: Hsin-Lin Cheng
  • Patent number: 10533639
    Abstract: An automatic transmission comprises a double-contrate-tooth combined fluted disc (120) and a two stage transmission ordinary gear train. The gear shifting mechanism of the transmission is the double-contrate-tooth combined fluted disc (120), which has double contrate teeth, namely, left contrate teeth and right contrate teeth. By the axial moving of the double-contrate-tooth combined fluted disc (120) on the transmission output shaft, its left contrate teeth and right contrate teeth respectively engage with the contrate teeth of the first gear and the second gear reduction gears, to realize the second shift position and the first shift position, and when it engages with neither of them, the transmission is in the neutral shift position. The left contrate teeth and the right contrate teeth are individually independent or integrally assembled structures.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 14, 2020
    Assignee: Jing-Jin Electric Technologies Co., Ltd.
    Inventors: Ping Yu, Ting Wang
  • Patent number: 10479350
    Abstract: A method is provided to control a hybrid powertrain, comprising a combustion engine; a gearbox with an input shaft connected to the combustion engine and an output shaft; a first planetary gear connected to the input shaft a second planetary gear connected to the first planetary gear; first and second electrical machines respectively connected to the first and second planetary gears; first gear pair connected with the first planetary gear and the output shaft; and second gear pair connected with the second planetary gear and the output shaft. The method comprises: a) engaging gears corresponding to the first gear pair and to the second gear pair; and b) connecting a second sun wheel, arranged in the second planetary gear and a second planetary wheel carrier with each other, with the use of a second coupling device.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: November 19, 2019
    Assignee: Scania CV AB
    Inventors: Mathias Björkman, Niklas Pettersson, Johan Lindström, Mikael Bergquist
  • Patent number: 10434862
    Abstract: A power transmission apparatus for a vehicle is disclosed. The power transmission apparatus includes three concentric input shafts, input shaft fixedly connected to an engine output shaft, a transmitting shaft disposed on the outer circumference of the first input shaft without rotation interference, a central shaft parallel to a first one of the input shafts and spaced apart from the first input shaft by a predetermined interval, a fixed transmission selectively shifting an input torque depending on the respective gear ratios of four change gear trains disposed between first and second input shafts, the transmitting shaft, and the central shaft and each having drive gears and driven gears externally connected to each other and outputting the shifted torque through the central shaft and the transmitting shaft, and composite transmission including a planetary gear set having a sun gear fixedly connected to one side of the transmitting shaft.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 8, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seong Wook Hwang, Seongwook Ji, Ki Tae Kim, Ki Dong Kim, Hyun Sik Kwon, Cheol Ho Jang, Soonki Eo, Kijong Park, Wonmin Cho
  • Patent number: 10295030
    Abstract: A CVT transmission having an input drive, a continuously variable variator, a sub-transmission to achieve at least two operating ranges (low and high) each with continuously variable gear ratios, and having a direct-shift stage for switching between a first operating range (low) and a second operating range (high) with continuously variable gear ratios. For the first operating range (low) the sub-transmission includes a non-positive clutch, such as a friction clutch, and for the second operating range (high) it includes a positive clutch, such s a jaw clutch.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: May 21, 2019
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Bernhard Walter
  • Patent number: 10145452
    Abstract: A planetary gear train of an automatic transmission for a vehicle may include a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, an input shaft mounted with the first and second planetary gear sets at an external circumference of the input shaft, an output shaft disposed in parallel with the input shaft and mounted with the third and fourth planetary gear sets on an external circumference of the output shaft, a first shaft, a second shaft, a third shaft directly connected with the input shaft, a fourth shaft, a fifth shaft, a sixth shaft gear-meshed with the fourth shaft, a seventh shaft engaged with the third shaft selectively, an eighth shaft directly connected with the output shaft, a ninth shaft, and transfer gears each gear-meshed with at least one of the shafts.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 4, 2018
    Assignee: Hyundai Motor Company
    Inventors: Kyeong Hun Lee, Jong Soo Kim, Jong Sool Park, Dong Hwan Hwang
  • Patent number: 10066701
    Abstract: A multi-speed transmission may include a first input shaft rotatable, a second input shaft rotatable coaxially with respect to the first input shaft, first clutch and second clutch respectively transmitting power from a driving source to the first and second input shafts, first output shaft and second output shaft parallel to the first and second input shafts, a plurality of odd-numbered gear-change gear trains provided between the first input shaft and the first output shaft and between the first input shaft and the second output shaft, a plurality of even-numbered gear-change gear trains provided between the second input shaft and the first output shaft and between the second input shaft and the second output shaft, and a reverse gear device installed in at least any one of the first and second output shafts, wherein the reverse gear device is configured as a planetary gear set.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: September 4, 2018
    Assignee: Hyundai Motor Company
    Inventor: Yeo Hyeon Gwon
  • Patent number: 10035414
    Abstract: An automatically-shiftable transaxle includes an input member configured to receive an external power-source torque and rotate about a first axis. The transaxle also includes torque transmitting device(s) and a gear-train, each operatively connected to the input member for selecting transaxle speed ratios, and a first transfer gear operatively connected to the gear-train and rotatable about the first axis. The transaxle also includes an intermediate shaft rotatable about a second axis, and a second transfer gear rotatably fixed to the intermediate shaft and meshed with the first transfer gear. The transaxle additionally includes an electric motor arranged on a third axis for providing a torque input to the second transfer gear. Furthermore, the transaxle includes a differential assembly operatively connected to the intermediate shaft and rotatable about a fourth axis to thereby transmit a transaxle output torque to drive the load. All four transaxle rotational axes are arranged in parallel.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: July 31, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: James M. Hart, Daryl A. Wilton, Darrell Lee Robinette
  • Patent number: 9982764
    Abstract: A power transmission apparatus for a vehicle may include a first input shaft, a second input shaft, a third input shaft, an intermediate shaft disposed parallel to the first, second, and third input shafts, a transfer gear fixedly disposed on the intermediate shaft and outputting torque thereof, an first shifting member changing torque of an engine into first and second preliminarily shifted torques, and outputting the first and second preliminarily shifted torques, an second shifting member changing the torque of the engine into third and fourth preliminarily shifted torques, and outputting the third and fourth preliminarily shifted torques, and a third shifting member changing the torque of the engine transmitted from the first input shaft and the first preliminarily shifted torque to the fourth preliminarily shifted torque selectively transmitted from the first shifting member or the second shifting member into eight forward speed stages and one reverse speed stage.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: May 29, 2018
    Assignee: Hyundai Motor Company
    Inventors: Seong Wook Hwang, Yong Uk Shin, Seongwook Ji, Woochurl Son, Wonmin Cho, Hyun Sik Kwon, Ki Been Lim, Woo Jin Chang, Jae Chang Kook, Ki Tae Kim
  • Patent number: 9958065
    Abstract: A brake device of a transmission is provided. The brake device includes a friction plate set including fixed friction plates and rotatable friction plates alternately disposed with each other, an engaging piston, and a clearance adjusting piston. A clearance adjusting hydraulic chamber is formed on a side of the clearance adjusting piston opposite to the friction plate set, and a concave portion is formed in a surface of the clearance adjusting piston on a friction plate set side. A base part of the engaging piston on a side opposite to the friction plate set is slidably fitted into the concave portion of the clearance adjusting piston and an engaging hydraulic chamber is formed by the base part and the concave part.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: May 1, 2018
    Assignee: Mazda Motor Corporation
    Inventors: Tatsuhiko Iwasaki, Shinya Kamada, Yasuhiro Ogauchi
  • Patent number: 9835237
    Abstract: A power transmission apparatus for a vehicle includes a first input shaft directly connected to an engine, a second input shaft enclosing the first input shaft and rotating independently from the first input shaft and selectively receiving torque of the engine through a first clutch, a third input shaft enclosing the second input shaft and rotating independently from with the second input shaft and selectively receiving the torque of the engine through a second clutch, an intermediate shaft disposed in parallel with the first, second and third input shafts, a transfer gear fixedly disposed on the intermediate shaft and outputting torque of the intermediate shaft, a first shifting member, a second shifting member, and a third shifting member for changing the torque of the engine.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: December 5, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Seong Wook Hwang, Yong Uk Shin, Seongwook Ji, Woochurl Son, Wonmin Cho, Hyun Sik Kwon, Ki Been Lim, Woo Jin Chang, Jae Chang Kook, Ki Tae Kim
  • Patent number: 9651127
    Abstract: A transmission includes a housing, an input shaft, an output shaft, a first gearset, a second gearset, a variable-ratio unit, a first torque transmitting mechanism, and a bypass torque transmitting mechanism. The first gearset is arranged between the input shaft and the output shaft, and the second gearset is coupled to the first gearset between the input shaft and the output shaft. The variable-ratio unit is configured to transmit power between (i) a first member coupled to the input shaft and the first gearset and (ii) a second member coupled to the first gearset. The first torque transmitting mechanism is selectively engageable to couple the second gearset to the housing. The bypass torque transmitting mechanism is selectively engageable to couple the first member to the second member to bypass the variable-ratio unit.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: May 16, 2017
    Assignee: Allison Transmission, Inc.
    Inventor: Brian Schoolcraft
  • Patent number: 9644721
    Abstract: A transmission includes an input shaft, an output shaft, a variable-ratio unit, and a plurality of torque transmitting mechanisms. The plurality of torque transmitting mechanisms include a first clutch, a second clutch, a third clutch, and a fourth clutch. The transmission is operable to (i) engage the first clutch and the second clutch in a first operating mode and (ii) engage the first clutch and the third clutch in a second operating mode. The transmission is further operable to (i) engage the fourth clutch and disengage the second clutch during a first period of time and (ii) engage the third clutch and disengage the fourth clutch during a second period of time following the first period of time to transition from the first operating mode to the second operating mode.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: May 9, 2017
    Assignee: Allison Transmission, Inc.
    Inventor: Brian Schoolcraft
  • Patent number: 9638287
    Abstract: A multi-speed transmission in planetary design with a housing is proposed. A first shaft (1) is provided as a drive (AN) and a second shaft (2) is provided as an output (Ab) arranged axially parallel to the drive. Three planetary gear sets (RS1, RS2, RS3) and additional shafts (3-9) along with six shifting elements (K1, K2, K3, K4, B1, B2) are provided for the actuation of several gears. Machine elements (ST1, ST2) are provided for the transfer of torque between the drive (AN) and the output (Ab). The first shaft (1) is connectable or connected, as a drive, to a sun gear (SR1) of the first planetary gear set (RS1), to the sun gear (SR3) of the third planetary gear set (RS3), and to the planetary gear carrier (PT2) of the second planetary gear set (RS2). The second shaft (2), as an output shaft (Ab), is connectable or connected to the first machine element (ST1) and to the second machine element (ST2).
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: May 2, 2017
    Assignee: ZF Friedrichshafen AG
    Inventors: Stefan Beck, Christian Sibla, Wolfgang Rieger
  • Patent number: 9599193
    Abstract: A transmission includes an input shaft to receive a rotation of an engine, drive gears respectively attached to the input shaft to freely rotate individually, an output shaft disposed parallel to the input shaft in order to output rotation following a gear shift, driven gears respectively attached to the output shaft to freely rotate individually and to mesh with the drive gears, an engagement mechanism to fix a gear to be used in a gear shift individually, from among the drive gears, to the input shaft to be incapable of relative rotation, and a selector mechanism to fix, during the gear shift, the driven gear of a corresponding gear position individually, which meshes with the drive gear fixed to the input shaft by the engagement mechanism, to the output shaft to be incapable of relative rotation, and a hub that is fixed to the input shaft.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: March 21, 2017
    Assignee: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasuyuki Ukon, Keisuke Shibuya
  • Patent number: 9551400
    Abstract: A power transmission device of a hybrid vehicle includes: a transmission including a planetary mechanism including a plurality of transmission rotational elements, one of the transmission rotational elements being connected to a rotary shaft of an engine; a differential device including a plurality of differential rotational elements including one connected to one of the transmission rotational elements of the transmission, one connected to a rotary shaft of a first rotary machine, and one connected to a rotary shaft of a second rotary machine and a driven wheel; a transmission control device configured to control the transmission; and a control device configured to control the first rotary machine such that pinion differential rotation of the transmission or the differential device is set to be not higher than a predetermined value at a time unique motor EV driving is performed only by power of the second rotary machine.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 24, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhiro Hiasa, Atsushi Tabata, Tooru Matsubara, Tatsuya Imamura, Takeshi Kitahata, Kenta Kumazaki
  • Patent number: 9488260
    Abstract: A group transmission of a motor vehicle having a main transmission and a downstream range group. The range group has two gear steps for different speed ranges and a reversing step for reverse driving. The range group has two planetary gearsets, each with a planet carrier, a sun and ring gears. To engage a driving range for lower speeds, the sun gear of the second gearset and the ring gear of the first gearset are locked to the housing by a first clutch. To engage a driving range for higher speeds, two respective elements of the two gearsets can be connected to one another, in a rotationally fixed manner, by a second clutch. To engage a reversing driving range, the planet carrier of the first gearset and the ring gear of the second gearset are locked relative to the housing by a third clutch.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: November 8, 2016
    Assignee: ZF Friedrichshafen AG
    Inventors: Johannes Kaltenbach, Eckhardt Lübke, Michael Wechs
  • Patent number: 9470292
    Abstract: A dual clutch type transmission has first and second sections which respectively include first and second clutches. The clutches may be operated to allow torque transfer from an input to an output by way of the first section or the second section. One or more additional gear ratios is provided by a torque transfer pathway connecting the first and second sections such that torque is delivered from the input to the output by way of one or more stages of the first section and one or more stages of the second section. The additional gear ratios may comprise extra low gear ratios. Some embodiments provide transmissions suitable for driving pumps for use in hydraulic fracturing of geological formations.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: October 18, 2016
    Assignee: Pacific Rim Engineered Products (1987) Ltd.
    Inventors: Kenneth Hartmann Andreasen, Jonathan David Deagle, Bradley Edward Williams
  • Patent number: 9382986
    Abstract: A dual clutch transmission includes a first and second concentric input shafts, a dual clutch assembly, a mainshaft coaxial with the first input shaft, a first countershaft, a second countershaft, and planetary range gearing with high and low ratios. The dual clutch transmission has six forward gear meshes and the high and low range ratios of the range gearing to provide ten forward gear ratios for the transmission. The transmission is powershiftable between consecutive gear ratios of the ten forward gear ratios such that no torque interrupt occurs during sequential shifts.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: July 5, 2016
    Assignee: Eaton Corporation
    Inventors: Paul Peterson, Matthew Busdiecker, Joseph Reynolds, James Walker, Thomas Stoltz
  • Patent number: 9216736
    Abstract: This control device is applied to a hybrid vehicle that is provided with a motor lock mechanism that changes over the state of a power distribution mechanism between a differentiating state in which a differentially rotating state between an engine and a first motor-generator is permitted, and a non-differentiating state in which the rotation of the first motor-generator is prohibited. The control device stops combustion by the engine and changes over to an EV mode when predetermined conditions become valid during implementation by the power distribution mechanism of a differentiating mode of the differentiating state or of a non-differentiating mode of the non-differentiating state. The condition is set to be more severe while the non-differentiating mode is being implemented, as compared with the case while the differentiating mode is being implemented.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: December 22, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Tomoyuki Maruyama
  • Patent number: 9145959
    Abstract: A transmission assembly for an agricultural vehicle comprises a first transmission unit, a second transmission unit coupled to the first and a third transmission unit coupled to the second. The second transmission unit comprises an input shaft, an output shaft and two countershafts, the input shaft drives the countershafts and the countershafts drive the output shaft. The third transmission unit comprises an input shaft, which is drivingly coupled to an output shaft located in parallel thereto. The first transmission unit comprising a planetary drive and a sun gear of the first transmission unit, the input shaft and the output shaft of the second transmission unit, and the input shaft of the third transmission unit are located coaxial to each other, wherein an output of the first transmission unit is connected to the input shaft of the second transmission unit and the output shaft of the second transmission unit is connected to the input shaft of the third transmission unit.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: September 29, 2015
    Assignee: DEERE & COMPANY
    Inventor: Ulrich Otten
  • Patent number: 9133924
    Abstract: A transmission includes an input shaft, an output shaft, a variator, a plurality of clutches including a first clutch, a second clutch, a third clutch, a fourth clutch, and a variator bypass clutch, and a plurality of gearsets including a first gearset, a second gearset, a third gearset, and a fourth gearset. The transmission is operable in a plurality of operating modes, including at least mode in which the variator is utilized to provide a transmission ratio varying within a defined range and at least one mode in which the variator is bypassed to provide a fixed transmission ratio.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: September 15, 2015
    Assignee: Allison Transmission, Inc.
    Inventor: Brian Schoolcraft
  • Patent number: 9102232
    Abstract: A drive axle system for a vehicle drive train having a clutching device is provided. The drive axle system includes a first shaft, a first axle assembly, a second axle assembly, a first clutching device, and a second clutching device. The first axle assembly is drivingly engaged with the first shaft through a first pinion gear. The first clutching device divides one of a pair of output axles into first and second portions. The second clutching device selectively engages a driving gear of the second axle assembly with a second pinion gear of the first axle assembly through a propeller shaft.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 11, 2015
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: James F. Ziech, Donald J. Remboski, Steven J. Wesolowski, Timothy J. Morscheck
  • Publication number: 20150133257
    Abstract: The driving force from a drive source is transmitted from a main input shaft to a continuously variable transmission mechanism through an input switching mechanism and a first input path in which a first speed-reducing gear is disposed, and is further transmitted to a first output path in which a second speed-reducing gear is disposed, thus establishing a LOW mode. And the driving force is transmitted from the main input shaft to the continuously variable transmission mechanism through the input switching mechanism and a second input path in which a speed-increasing gear, and is further transmitted to a second output path in which a third speed-reducing gear, thus establishing a HI mode. The_first speed-reducing gear on the input side, the speed-increasing gear on the input side and the second and third speed-reducing gears on the output side are independent from each other.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 14, 2015
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Satoshi Uchino, Atsushi Fujikawa
  • Publication number: 20150126321
    Abstract: The invention concerns a method for operating a transmission, in particular a dual-clutch transmission for a motor vehicle, which comprises at least two partial transmissions each of the partial transmissions having at least one input shaft on a drive input side of the transmission, which are arranged on an input shaft axis, an output shaft as the drive output shaft of the at least two partial transmissions on a drive output side of the transmission, wherein the drive output shaft is arranged on the input shaft axis or on at least one countershaft axis, in particular one that is parallel to the input shaft axis, an intermediate gear system on the at least one countershaft axis with at least one countershaft, wherein at least one of the input shafts can be connected by way of at least one gear plane and/or at least one shifting element to the drive output shaft, wherein at least four gear planes are arranged for obtaining forward gears and at least six shifting elements are provided and wherein on the at least
    Type: Application
    Filed: October 28, 2014
    Publication date: May 7, 2015
    Inventors: Christian MITTELBERGER, Stefan BLATTNER, Bernard HUNOLD, Eckhardt LUBKE, Johannes KALTENBACH
  • Publication number: 20150119183
    Abstract: A double clutch transmission of a vehicle is disclosed. The double clutch transmission may selectively transmit power of a power source to two input shafts through two clutches and may output changed power through two output shafts after the power selectively transmitted to the two input shafts is changed. The two input shafts may respectively have a plurality of input gears fixed thereon, the two output shafts may respectively have a plurality of speed gears rotatable on the output shafts and a plurality of synchronizers operably connecting each speed gear to any one of the output shafts, and each input gear may be engaged with at least one speed gear.
    Type: Application
    Filed: July 10, 2014
    Publication date: April 30, 2015
    Applicant: Hyundai Motor Company
    Inventor: Yeo Hyoun KWON
  • Patent number: 8989970
    Abstract: There is disclosed a continuously variable ratio transmission assembly (“variator”) comprising a roller which transmits drive between a pair of races, the roller being movable in accordance with changes in variator ratio, a hydraulic actuator which applies a biasing force to the roller, at least one valve connected to the actuator through a hydraulic line to control pressure applied to the actuator and so to control the biasing force, and an electronic control which determines the required biasing force and sets the valve accordingly, wherein the valve setting is additionally dependent upon a rate of flow in the hydraulic line.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: March 24, 2015
    Assignee: Torotrak (Development) Limited
    Inventor: Stephen William Murray
  • Patent number: 8986155
    Abstract: A family of transmission gearing arrangements provides a plurality of forward speed ratios and one or more reverse speed ratios by selective engagement of shift elements in various combinations. An input and an output are provided. Three planetary gear sets are located at an offset position relative to the input axis and the output axis. Axis transfer gears are provided to transfer rotational energy from the input to one of the planetary gear sets, and from one of the planetary gear sets to the output.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: March 24, 2015
    Assignee: Ford Global Technolgies, LLC
    Inventor: Donald Edward Hoffman
  • Patent number: 8979707
    Abstract: A method of operating a drive-train which comprises an automated shift transmission having an unsynchronized main transmission and a synchronized downstream group that is drivingly coupled downstream from the main transmission. An input shaft of the automated transmission is connected, via a clutch, to a drive aggregate and an output shaft of the automated transmission is connected to a drive axle. When the vehicle is driven and the main transmission is in a neutral position, if the drive aggregate malfunctions, to engage a gear, the downstream group is adjusted to stop transmitting power and thereby coast to a stop. A shifting impulse is applied to a shifting cylinder of the main transmission so that shifting elements, of the main transmission, ratchet over one another and eventually mesh thus engaging the main transmission, and once the main transmission is engaged, the downstream group is brought to a power-flow-transmitting position.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: March 17, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Johannes Kemler, Joachim Staudinger, Maik Wurthner, Ingo Sauter
  • Patent number: 8936528
    Abstract: A transmission, preferably for driving a motor vehicle, includes a multi-gear main transmission and a range group, that is connected downstream from the main transmission and comprises an input shaft and an epicyclic gear system. The epicyclic gear system comprises elements in the form at least of a central gearwheel and a planetary carrier. Furthermore, the transmission comprises a first connection for driving one of the elements of the epicyclic gear system by way of the input shaft of the range group and a variator, as well as a second connection that can be engaged with the first connection for driving a further element of the elements of the epicyclic gear system. When the second connection is engaged, the input shaft of the range group drives the variator and a drive output of the variator drives the further element of the epicyclic gear system.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: January 20, 2015
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Bernard Hunold
  • Patent number: 8926467
    Abstract: A transmission assembly includes a reverse drive assembly including a reverse drive shaft, a reverse drive input gear in constant mesh with a main shaft gear, a planetary gear system, and a reverse drive output gear. The reverse drive assembly is driven by the main shaft gear in forward and reverse. The reverse drive output gear is configured to drive a counter shaft through a corresponding multi-gear half shaft when in reverse. The half shaft is supported on the main shaft and can be selectively unlocked from the main shaft to provide a reverse gear ratio, thereby establishing a reverse power transmission path from the main shaft, through the reverse drive assembly, through the half shaft in the un-locked condition to the counter shaft, and to an output drive supported on the main shaft.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: January 6, 2015
    Assignee: Harley-Davidson Motor Company Group, LLC
    Inventor: Steven D. Grant
  • Patent number: 8926468
    Abstract: A variable transmission includes an input shaft, a planetary gear set drivingly engaged with a variator comprising, a variator carrier assembly, a first ring assembly, and a second ring assembly; and the output shaft, arranged to produce transmissions with continuously variable or infinitely variable output ratios.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 6, 2015
    Assignee: Dana Limited
    Inventors: Mark R. J. Versteyhe, Thibaut E. Duchene, Matthias W. J. Byltiauw
  • Patent number: 8920278
    Abstract: A gear transmission comprises a crankshaft that eccentrically rotates one of an internal gear and an external gear. A first gear is attached to one end of the crankshaft. A ring gear having internal teeth meshes with the first gear. An intermediate gear meshes with external teeth of the ring gear. A second gear is attached to one end of an output shaft of a motor and meshes with the intermediate gear. The motor and the crankshaft are positioned, relative to the intermediate gear, on the same side in the axial direction of the gear transmission.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: December 30, 2014
    Assignee: Nabtesco Corporation
    Inventors: Satoshi Tanaka, Shigeki Asano
  • Patent number: 8911323
    Abstract: A multi-ratio transmission system is provided, including multiple planet gear sub-systems, at least two coupling assemblies, 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. Each 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 installed onto a one-way clutch. The cylindrical casing encloses the planet gear sub-systems. The sprocket is installed onto the planet gear sub-systems through the one-way clutch. The central axle enables the hollowed tube of the setting element controller to rotate around the central axle.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: December 16, 2014
    Assignee: Cheng Ho Chen
    Inventor: Cheng Ho Chen
  • Patent number: 8888645
    Abstract: A CVT is provided that includes an input member, an output member, an input disk rotationally coupled to the input member, an output disk having an output gear, a roller disposed between the input disk and the output disk and configured to transfer torque from the input disk to the output disk, a counter gear intermeshed with the output gear, and a planetary gear set connected to the output member. The planetary gear set includes a ring gear, a carrier member, and a sun gear. The ring gear is rotationally coupled to the counter gear. The counter gear and the planetary gear set are co-planar with the output disk.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: November 18, 2014
    Assignee: GM Global Technology Operations, LLC
    Inventor: Hai Xu
  • Patent number: 8888636
    Abstract: A power output apparatus 1 to 1D including an engine 6, a motor 7, and a transmission 20 to 20D having two transmission shafts connected to the engine 6 is provided. The transmission includes a power combination mechanism 30 adapted so as to be able to rotate first to third elements differentially from each other. The first element is connected to any one of the two transmission shafts, the second element is connected to a driving shaft 9 or 9, and the third element is connected to the motor 7. The second element combines the power transmitted from the first element and the power transmitted from the third element, and transmits the combined power to the driving shaft 9 and 9. The other transmission shaft of the two transmission shafts transmits power to the driving shaft 9 or 9 without going via the power combination mechanism 30.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: November 18, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takefumi Ikegami, Noriyuki Abe, Shigeru Koyama, Atsuhiro Sakai, Shinji Fujimoto
  • Publication number: 20140329633
    Abstract: A motor vehicle powershift transmission which comprising two partial transmissions (TG1, TG2) each with a respective input shaft (GE1, GE2) that can be drivingly connected, via a main separator clutch (CL1, CL2; CL1?, CL2?; CL1*, CL2*), with the driveshaft (TW) of a drive engine (VM) and, on the output side, with a common output shaft (GA). To enable powershifts without frictional slipping, the two input shafts (GE1 GE2), on the input side, can be connected to and disconnected from a respective intermediate shaft (ZW1, ZW2) by the respective main separator clutch (CL1, CL2; CL1?, CL2?; CL1*, CL2*). The first intermediate shaft (ZW1) is directly connected to the driveshaft (TW) and the second intermediate shaft (ZW2) is in driving connection with the first intermediate shaft (ZW1) by way of a variator (V) which has a continuously adjustable transmission ratio (iV) and a rest transmission ratio having the value one iV—0=1).
    Type: Application
    Filed: April 8, 2014
    Publication date: November 6, 2014
    Applicant: ZF Friedrichshafen AG
    Inventors: Kai BORNTRAEGER, Bernard HUNOLD, Johannes KALTENBACH
  • Publication number: 20140309071
    Abstract: A backlash-free planetary gear assembly comprising at least a first planet carrier member (4) and a second planet carrier member (5), which are rotatable relative to each other around the axis (7) of said assembly, and are connected by elastic means (10, 14) arranged to elastically react to a rotation between said planet carrier members, said elastic means being tensioned when said first member and second member are rotationally aligned in a design operation condition, so that the assembly, in use, is preloaded with a torque which tends to rotate said first planet carrier member relative to said second planet carrier member, in order to recover backlash.
    Type: Application
    Filed: December 7, 2011
    Publication date: October 16, 2014
    Inventors: Paolo Croce, Rolando Berta
  • Patent number: 8801560
    Abstract: A transmission system has an input connected to a drive source, and an output connected to a load. The transmission system further has a transmission that includes two input shafts and an output shaft, as well as a clutch module comprising a clutch and a planetary gear set which comprises three rotational members of which a first rotational member is connected to the input, a second rotational member is coupled to the output and a third rotational member is connected to a brake. Between the input shafts and the output shaft are located three speed transforming gears and three gear clutches, and between the two input shafts is located a further clutch.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: August 12, 2014
    Assignee: DTI Group, B.V.
    Inventors: Roell Marie Van Druten, Alexander Franciscus Anita Serrarens, Bas Gerard Vroemen
  • Patent number: 8795115
    Abstract: A hybrid dual configuration transmission for a vehicle having an electric motor, planetary gear set and a plurality of gear meshes is disclosed herein. The hybrid dual configuration transmission provides for a plurality of electrically variable transmission operating modes and a plurality of fixed gear operating modes. The hybrid dual configuration transmission may be operated utilizing exclusively the electric motor, exclusively an engine, or any combination of the electric motor and engine.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: August 5, 2014
    Assignee: Chrysler Group LLC
    Inventor: Dumitru Puiu
  • Patent number: 8784257
    Abstract: A continuously variable transmission has an input shaft and an output shaft. The transmission includes a variator unit having an input shaft and an output shaft, and a planetary gear wheel unit having a planet carrier, a first sun wheel and a second sun wheel. The input shaft of the transmission is rotationally connectable to the planet carrier and to the input shaft of the variator unit, and a shaft rotationally fixed to the first sun wheel is rotationally connectable to the output shaft of the variator unit. The planet carrier is provided with a first inner set of planet wheels for meshing engagement with the first sun wheel and a second outer set of planet wheels for meshing engagement with the second sun wheel.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: July 22, 2014
    Assignee: Volvo Construction Equipment AB
    Inventors: Per Mattsson, Mats Åkerblom
  • Patent number: 8747274
    Abstract: A transmission is disclosed having a planetary gear set with three input torque-transmitting mechanisms, such as friction clutches, to achieve torque flow through the planetary gear set to a countershaft gearing arrangement. The transmission includes an input member, an output member, a planetary gear set, an input clutch assembly having three input clutches and a countershaft gearing arrangement. The countershaft gearing arrangement is operatively connected with the planetary gear set and includes: a pair of co-planar intermeshing gears, first and second countershafts, a first intermediate shaft and a second intermediate shaft concentric with the first intermediate shaft.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 10, 2014
    Assignee: GM Global Technology Operations, LLC
    Inventor: Andrew W. Phillips
  • Patent number: 8721486
    Abstract: A continuously variable transmission having a variator (5) comprising input discs (2) coupled to an input shaft (12) and an output disc (3) providing a rotary variator output. The input and output discs are mounted for rotation about a common axis and at last one roller (4) is arranged between the discs to transfer drive from one to the other at a continuously variable variator drive ratio. The roller is mounted in a carrier (30) in a manner which permits it to spin about its own axis and to tilt relative to the disks to vary the variator drive ratio. A hydraulic actuator (22) is arranged to apply to the carrier (30) a reaction force determined by a hydraulic pressure difference acting on the actuator. The reaction force opposes a traction force applied to the roller (4) by the action of the discs (2, 3).
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: May 13, 2014
    Assignee: Torotrak (Development) Limited
    Inventors: Stephen William Murray, Yusuke Okada