Multiple Concentric Clutch Shafts Patents (Class 74/330)
  • Patent number: 11117462
    Abstract: A power transmission apparatus of a hybrid electric vehicle includes a first input shaft mounted along an axis of an engine shaft and selectively connectable to the engine shaft, a second input shaft formed as a hollow shaft, coaxially mounted with the first input shaft, and fixedly connected to a rotor of the first motor-generator, a third input shaft formed as a hollow shaft, coaxially mounted with the first input shaft, and selectively connectable to the first input shaft, an intermediate shaft mounted in parallel with the first input shaft, an output shaft mounted in parallel to the first input shaft and outputting a shifted toque, a planetary gear set mounted on the output shaft, having an element fixed to the output shaft and forming a shifted torque, and a plurality of gear sets mounted over the first, second, and third input shafts, the intermediate shaft, and the output shaft.
    Type: Grant
    Filed: July 24, 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: 11105399
    Abstract: A dual-clutch transmission may include: a first input shaft and a second input shaft mounted concentrically to the first input shaft; a first clutch mounted to the first input shaft to selectively transmit power to the first input shaft; a second clutch mounted to the second input shaft to selectively transmit power to the second input shaft; a first output shaft and a second output shaft mounted in parallel with the first input shaft and the second input shaft; an input shaft connection device provided to switch a power transmitting and a blocking state between the first input shaft and the second input shaft by use of a selection output shaft; a plurality of drive gears mounted on the first input shaft and the second input shaft; and a plurality of driven gears mounted on the first output shaft and the second output shaft engaged with the plurality of drive gears to form each shifting stage.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 31, 2021
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Soon Ki Eo, Seong Wook Hwang, Ma Ru Kang, Min Ho Chae, Sun Sung Kwon, Chon Ok Kim
  • Patent number: 11067168
    Abstract: A power transmission apparatus configured for a vehicle, may include a first input shaft selectively connectable to an engine output shaft, a second input shaft mounted coaxial with the first input shaft and selectively connectable to the engine output shaft, a third input shaft external to the second input shaft and selectively connectable to the engine output shaft, a torque mediating shaft mounted coaxial with the first input shaft, first and second intermediate shafts, an idle shaft, a first shifting section including five gear sets, the first and second intermediate shafts, the torque mediating shaft and the idle shaft, a second shifting section including a planetary gear set having a sun gear fixedly connected to the torque mediating shaft, and an output shaft mounted coaxial with and selectively connectable to the first intermediate shaft and outputting a torque from the first and second shifting sections.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: July 20, 2021
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Juhyeon Park, Seong Wook Hwang, Seongwook Ji, Ki Tae Kim, Wonmin Cho, Hyun Sik Kwon, Ilhan Yoo, Sun Sung Kwon, Chon Ok Kim
  • Patent number: 11060585
    Abstract: A double clutch transmission (DCT) may include a first input shaft and a second input shaft disposed to or not to receive power from the same power source, respectively; a first output shaft and a second output shaft each disposed in parallel with the first input shaft; a first drive gear disposed on and rotated with the first input shaft; a second drive gear disposed on and rotated with the second input shaft; a first driven gear engaged with the first drive gear and rotatably disposed on a selection output shaft which is one of the first output shaft and the second output shaft; a second driven gear engaged with the second drive gear and rotatably disposed on the selection output shaft; and a sleeve synchronizer selectively connecting between the first driven gear and the second driven gear.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: July 13, 2021
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Soon Ki Eo, Seong Wook Hwang, Won Min Cho, Min Ho Chae, Sun Sung Kwon, Chon Ok Kim
  • Patent number: 11035449
    Abstract: A torque converter device for a drivetrain of a motor vehicle includes a converter cover having a cover shell and a hub rigidly connected to the cover shell. The torque converter device also includes at least one multidisk clutch, which includes at least one inner disk-centering member. The hub integrally forms the inner disk-centering member of the multidisk clutch.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: June 15, 2021
    Assignee: DAIMLER AG
    Inventors: Jan Velthaus, Bernhard Ziegler, Tobias Schuster, Lukas Rube, Kai Heukelbach, Bernd Koppitz, Felix Zehren
  • Patent number: 11002339
    Abstract: A power transmission apparatus for a vehicle may include a first input shaft directly connected to a motor/generator, a second and third input shafts coaxial and selectively connectable to the first input shaft, a torque mediating shaft coaxial with the first input shaft, an intermediate shaft and output shaft disposed in parallel with the first input shaft, a first shifting section receiving torque from the third input shaft and outputting a modified torque to the torque mediating shaft, a second shifting section including first planetary gear set, shifting torque of the first input shaft to output the shifted torque to the torque mediating shaft, and selectively stopping the torque mediating shaft, and a third shifting section including second planetary gear set, forming an output torque in combination of torques from the first and second shifting sections and the second input shaft, and outputting the output torque to the output shaft.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: May 11, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Cheol Ho Jang, Woochurl Son, Sun Sung Kwon, Seong Wook Hwang, Kijong Park, Yong Uk Shin, Seongwook Ji, Ki Tae Kim, Chon Ok Kim, Wonmin Cho, Hyun Sik Kwon, Ilhan Yoo, Juhyeon Park, Minho Chae, Dongwoo Kim, Hye Jin Lim, Soonki Eo, Ki Dong Kim, Woo Jin Chang, Yong Sug Choi, Young Chan Gweon
  • Patent number: 10989298
    Abstract: A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. A shift control circuit operates a shift actuator using a first opposing pulse command and a first actuating pulse command, and releases pressure with shift actuating and opposing volumes of the shift actuator upon determining a shift completion event.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: April 27, 2021
    Assignee: Eaton Cummins Automated Transmission Technologies, LLC
    Inventors: Paul Peterson, Graeme Andrew Jackson, Timothy Scott Smith, Paul Wilson, Christian Chimner, Thomas Connolly, Christopher DeBoer
  • Patent number: 10975935
    Abstract: A dual clutch-type transmission includes a first clutch, a second clutch, a first input shaft, a second input shaft, an output shaft, a first countershaft, a second countershaft, a first input gear train, a second input gear train, a first output gear train, a second output gear train, a third output gear train, a first synchronization mechanism, a second synchronization mechanism, and a third synchronization mechanism.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: April 13, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Kouhei Akashi, Takefumi Okamoto
  • Patent number: 10871203
    Abstract: A dual clutch transmission for a motor vehicle including two sub-transmissions, each having at least one input shaft. An output shaft outputs drive from both sub-transmissions. The input shafts are arranged on an input shaft axis and the output shaft is arranged on the input shaft axis or a parallel countershaft axis. An intermediate gear system includes at least one countershaft which is arranged on the countershaft axis. At least four shifting elements are arranged such that, in each case, at least two shifting elements are arranged on the input shaft axis and on the countershaft axis. At least one input shaft can be connected to the output shaft by way of two wheel planes and/or at least one shifting element. Preferably half of the shifting elements are unsynchronized and at least one-third of the shifting elements are synchronized. Also a method for operating a dual clutch transmission.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: December 22, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Bernd Schepperle, Michael Preuβ
  • Patent number: 10843548
    Abstract: A power transmission apparatus of a hybrid electric vehicle may include a first input shaft mounted along an axis of an engine shaft and selectively connectable to the engine shaft, a second input shaft formed as a hollow shaft, coaxially mounted with the first input shaft, and fixedly connected to a rotor of the first motor-generator, a third input shaft formed as a hollow shaft, coaxially mounted with the first input shaft, and selectively connectable to the first input shaft, an intermediate shaft mounted in parallel with the first input shaft, an output shaft mounted in parallel to the first input shaft and outputting a shifted torque, a planetary gear set mounted on the output shaft, having an element fixed to the output shaft and forming a shifted torque, and a plurality of gear sets mounted on the first, second, and third input shafts, the intermediate shaft, and the output shaft.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: November 24, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seong Wook Hwang, Soonki Eo, Ilhan Yoo, Dongwoo Kim, Yong Sug Choi, Jong Hyo Park
  • Patent number: 10830313
    Abstract: A dual-clutch transmission assembly where engine torque is split between first and second shafts. Torque is supplied to the first shaft by a first clutch and torque is supplied to the second shaft by a second clutch. A first gearset is carried on the first shaft and a second gearset is carried on the second shaft. The first gearset includes a primary first gear and the second gearset includes a duplicate first gear. The first and second shafts receive torque from a transmission input shaft in response to contemporaneous engagement of the primary first gear, the duplicate first gear, and the first and second clutches, which can be used during vehicle launch to split the torque applied to the first and second clutches. Both the primary first gear and duplicate first gear meshingly engage first and second counter shaft gearsets, which are rotatably coupled to a transmission output shaft.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: November 10, 2020
    Assignee: AVL POWERTRAIN ENGINEERING, INC.
    Inventors: Gregory Mordukhovich, Michael Kozan
  • Patent number: 10816061
    Abstract: The invention proposes a dual-clutch transmission with two clutches (K1, K2), the input sides of which are connected with an input shaft (w_an) and the output sides of which are respectively connected with one of two coaxially disposed transmission input shafts (w_K1, w_K2). Further provided are at least two countershafts (w_v1, w_v2) on which idlers (i2, i3, i4, i5, iR) are rotatably mounted. The dual-clutch transmission comprises fixed gears (F1, F2, F3), which are disposed on the two transmission input shafts (w_K1, w_K2) in a rotationally fixed manner and in engagement with the idlers, and output gears (iab1, iab2) respectively provided on the two countershafts (w_v1, w_v2), each of which is coupled to a gearing of an output shaft (w_ab), wherein the output shaft (w_ab) is not coaxially disposed to the input shaft (w_an).
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: October 27, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventor: Jürgen Wafzig
  • Patent number: 10753429
    Abstract: A dual clutch transmission for a motor vehicle, with switchable gearwheel sets which form in particular exactly eight wheel planes (RE-1 through RE-8), which are assigned to a first and to a second sub-transmission. The sub-transmissions are provided with at least one input shaft and with a common output shaft and the input shafts can be alternately activated via a load-switchable clutch. Furthermore, the odd forward gears are assigned to the sub-transmission and even forward gears are assigned to the other sub-transmission, which are switchable by corresponding switching elements. At least one gearwheel set of one sub-transmission can be coupled with a switching element to the other sub-transmission.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: August 25, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 10746259
    Abstract: A dual clutch transmission for a motor vehicle provided with gearwheels sets that are shiftable via switching elements, which form in particular exactly eight wheel planes, which are respectively assigned to a first sub-transmission and to a second sub-transmission, among which each sub-transmission is provided with an input shaft and both sub-transmissions are provided with a common output shaft. The input shafts, which are coaxial to each other, can be alternately activated via a load-shiftable clutch, and the odd forward gears are assigned to the first sub-transmission and the even forward gears are assigned to the second sub-transmission, which can be shifted during a gear shift by means of the switching elements.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 18, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 10746258
    Abstract: A dual clutch transmission for a motor vehicle, including gearwheel sets that can be shifted via shift elements, which form exactly eight gear stages which are assigned to a first sub-transmission and to a second sub-transmission. Each sub-transmission is provided with a joint drive shaft. The mutually coaxial input shafts can be alternately activated via a respective power-shiftable clutch, and the even forward gears are assigned to the first sub-transmission and the odd forward shifts are assigned to second transmission which can be switched over during gear shifting by the shift elements. The dual clutch transmission is provided with an intermediate gear stage which can be switched either to the first sub-transmission, or to the second sub-transmission.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 18, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 10677323
    Abstract: A dual clutch transmission for a motor vehicle, with gear wheel sets, which can be engaged via shift elements and which form exactly eight wheel planes, which are associated, respectively, with a first sub-transmission and a second sub-transmission, of which each sub-transmission has a respective input shaft and the two sub-transmissions have a common output shaft, which is axis-parallel to the input shafts. The mutually coaxial input shafts can each be activated in alternation via a power-shift clutch, and the even forward gears are associated with the first sub-transmission and the odd forward gears are associated with the second sub-transmission, which can be engaged when a gear shift occurs via the shift elements.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: June 9, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 10677322
    Abstract: A dual clutch transmission for a motor vehicle, with gear wheel sets, which can be engaged via shift elements and which, in particular, form eight wheel planes, which are associated with, respectively, a first sub-transmission and a second sub-transmission, each sub-transmission has a respective input shaft and both sub-transmissions have a common output shaft, wherein the mutually coaxial input shafts can each be activated in alternation via a power-shift clutch and the even forward gears are associated with the first sub-transmission and the odd forward gears are associated with the second sub-transmission.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: June 9, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 10670123
    Abstract: A power transmission system for a vehicle and a vehicle including the same are provided. The power transmission system includes an engine unit configured to generate power, a transmission unit adapted to selectively be coupled with the engine unit, and configured to transmit the power generated by the engine unit, a first motor generator coupled with the transmission unit, an output unit configured to transmit the power output by the transmission unit to at least one of front and rear wheels of the vehicle, and a second motor generator configured to drive the at least one of the front and rear wheels.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: June 2, 2020
    Assignee: BYD COMPANY LIMITED
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Patent number: 10648540
    Abstract: A dual-clutch transmission assembly and method for controlling the same is provided where the torque generated by an engine is split between first and second shafts. Torque is supplied to the first shaft by a first clutch and torque is supplied to the second shaft by a second clutch. A first gearset is carried on the first shaft and a second gearset is carried on the second shaft. The first gearset includes a primary first gear and the second gearset includes a duplicate first gear. The first and second shafts receive torque from a transmission input shaft in response to contemporaneous engagement of the primary first gear, the duplicate first gear, and the first and second clutches, which can be used during vehicle launch to split the torque applied to the first and second clutches.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: May 12, 2020
    Assignee: AVL Powertrain Engineering, Inc.
    Inventors: Gregory Mordukhovich, Michael Kozan
  • Patent number: 10605336
    Abstract: A transmission for a vehicle is provided to reduce a full length and a weight of the transmission. The transmission includes: first and second input shafts, output and transfer shafts disposed in parallel with the first and second input shafts; a transfer idler shaft to reduce rotational power transmitted to the transfer shaft and transfer the reduced rotational power to the output shaft via a gear structure; and a shaft gear apparatus. The shift gear apparatus selects a gear pair suitable for a traveling speed by a synchronizer by meshing gear pairs with: the first input shaft and the output shaft, the second input shaft and the output shaft, and the first input shaft and the transfer shaft. In particular, the gear pairs include a gear pair to form a lowermost stage, a gear pair forming an upper most stage, and a gear pair for forming a reverse stage.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: March 31, 2020
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Soon Ki Eo, Woo Churl Son, Chae Hong Lim
  • Patent number: 10598256
    Abstract: A dual clutch transmission for a motor vehicle. A gearwheel set switchable via switching elements, which form eight wheel planes and which are respectively assigned to a first sub-transmission and to a second sub-transmission, among which each sub-transmission is provided with an input shaft and both sub-transmissions are provided with a common output shaft. The input shafts, which are coaxial to each other, can be alternately activated via a load-shiftable clutch, and the even forward gears are assigned to the first sub-transmission, while the odd forward gears are assigned to the second sub-transmission, which are shiftable during a gear switch via the switching elements. The input shafts are free of the rotationally fixed gearwheels of the wheel planes arranged thereupon.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 24, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 10591024
    Abstract: A dual-clutch transmission for a motor vehicle, with gear wheel sets engageable via shift elements, with the gear wheel sets forming particularly precisely eight wheel planes, each of which is allocated to a first sub-transmission and a second sub-transmission, of which each sub-transmission has an input shaft and both sub-transmissions have a common output shaft. The input shafts, which are coaxial with respect to one another, can each be activated in an alternating manner via a power-shift clutch, and the even forward gears are allocated to the first sub-transmission and the odd forward gears are allocated to the second sub-transmission, which can be engaged upon a gear change by way of the shift elements.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 17, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 10569639
    Abstract: A power transmission system of hybrid electric vehicle may include an engine, a motor/generator, an input unit including a first input shaft, a second input shaft separately disposed on a same shaft as the first input shaft and an end portion of the second input shaft selectively connectable with the first input shaft in a state of being directly connected with the output side of the motor/generator, a first middle shaft disposed surrounding the first input shaft without rotational interference with the first input shaft to be selectively connectable with the first input shaft, and a second middle shaft including a hollow shaft and disposed surrounding the second input shaft without rotational interference with the second input shaft to be selectively connectable with the second input shaft, and an output shifter shifting torque of the input unit and outputting the shifted torque.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: February 25, 2020
    Assignee: Hyundai Motor Company
    Inventor: Kum Lim Choi
  • Patent number: 10571017
    Abstract: A gear-shifting control system of an automatic transmission includes a main pump, four gear-shifting cylinders, a gear-shifting control valve, a first gear switching valve, a second gear switching valve, a first gear on-off valve, and a second gear on-off valve. The gear-shifting control valve has an inlet and two outlets, the first gear switching valve has two inlets and four outlets, the second gear switching valve has two inlets and four outlets. The first gear on-off valve is connected between the first gear switching valve and the gear-shifting control valve, to disconnect or connect the gear-shifting control valve and the first gear switching valve. The second gear on-off valve is connected between the second gear switching valve and the gear-shifting control valve, to disconnect or connect the gear-shifting control valve and the second gear switching valve.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: February 25, 2020
    Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.
    Inventors: Jian Wu, Fan Mo, Xinzhi Huang, Xuewu Liu, Anwei Zhang
  • Patent number: 10547229
    Abstract: Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: January 28, 2020
    Assignee: Nidec Motor Corporation
    Inventors: Joshua M. Biro, William D. Moore
  • Patent number: 10533638
    Abstract: The invention relates to a dual clutch transmission for a motor vehicle, with gear wheel sets, which can be engaged via shift elements and which, form exactly eight wheel planes, which are associated with, respectively, a first sub-transmission and a second sub-transmission, of which each sub-transmission has a respective input shaft and the two sub-transmissions have a common output shaft. The mutually coaxial input shafts can each be activated in alternation via a power-shift clutch, and the even forward gears are associated with the first sub-transmission, and the odd forward gears are associated with the second sub-transmission, which can be engaged, when a gear shift occurs, via the shift elements.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 14, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 10476342
    Abstract: Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: November 12, 2019
    Assignee: Nidec Motor Corporation
    Inventors: Joshua M. Biro, Philip S. Johnson, Masatoshi Onishi, Barry M. Newberg
  • Patent number: 10428906
    Abstract: A transmission mechanism includes a plurality of drive gears disposed on a counter shaft and a plurality of driven gears disposed on a drive shaft. Each of the plurality of drive gears is engaged with each of the plurality of driven gears to form a plurality of shift-gear pairs. An eight-speed drive gear, which forms an eight-speed shift-gear pair having the smallest reduction gear ratio, and a seven-speed drive gear, which forms a seven-speed shift-gear pair having the second smallest reduction gear ratio, are disposed adjacent one another at a center portion of an arrangement of the drive gears. An eight-speed driven gear, which forms the eight-speed shift-gear pair, and a seven-speed driven gear, which forms the seven-speed shift-gear pair, are disposed adjacent one another at a center portion of an arrangement of the driven gears.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: October 1, 2019
    Assignee: SUZUKI MOTOR CORPORATION
    Inventor: Hideaki Takahashi
  • Patent number: 10428940
    Abstract: Disclosed is a hydraulic pressure supply system of a dual clutch transmission for a vehicle in which by independently configuring a low pressure supply route and a high pressure supply route, the hydraulic pressure supply system can enable a low hydraulic pressure that is generated in a hydraulic pump for a low pressure to be supplied to a gear lubrication device and a clutch cooling/lubrication device and enable a low hydraulic pressure that is generated in a hydraulic pump for a high pressure to be supplied to a gear control device and a clutch control device.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: October 1, 2019
    Assignee: Hyundai Motor Company
    Inventors: Yong Uk Shin, Hyun Chul Kim, Woochurl Son, Chang Yeon Cho, Woo Jin Chang, Wonmin Cho, Hyu Tae Shim
  • Patent number: 10428904
    Abstract: A dual clutch automatic transmission includes a one-way clutch provided in a driving force transmission path that establishes a first certain gear ratio in a first set of gear ratios. A driving transmission direction of the one-way clutch is set such that a rotation inputted from a wheel side to an output member in a predetermined rotational direction is transmitted to the input shaft. The predetermined rotational direction corresponds to a backward movement of a vehicle. If an off-gear operation cannot be performed for a transmission gear with interlock, the driving force of the driving source is input to the input shaft to enable the off-gear operation.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: October 1, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shohei Taka, Mitsuhiro Araki, Takashi Horiguchi
  • Patent number: 10393230
    Abstract: A transmission system for a work vehicle includes a transmission. The transmission includes a first shaft, a second shaft, an input shaft, an output shaft, and an input gear pair comprising a first input gear and a second input gear. The transmission includes a first input clutch configured to selectively couple the input shaft to the first shaft, and a second input clutch configured to selectively couple the input shaft to the second shaft via the input gear pair. The transmission includes an output gear pair comprising a first output gear and a second output gear, wherein the first output gear is coupled to the first shaft, or the second output gear is coupled to the output shaft. The transmission also includes a first output clutch configured to selectively couple the second output gear to the output shaft, and a second output clutch configured to selectively couple the second shaft to the output shaft.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: August 27, 2019
    Assignee: CNH Industrial America LLC
    Inventor: Garth Harvey Bulgrien
  • Patent number: 10330176
    Abstract: Ten forward speeds and one reverse speed are achieved by a power transmission apparatus for a vehicle including a double clutch, a plurality of input, output, and idle shafts, a plurality of gears fixed to or rotatable on the shafts, a plurality of synchronizers selectively synchronizing gears to the shafts.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: June 25, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sueng Ho Lee, Dongwon Kim, Seongwook Ji, Ki Dong Kim, Jihun Lee, Ma Ru Kang, Hyun Sik Kwon, Sun Sung Kwon, Ki Tae Kim
  • Patent number: 10330175
    Abstract: Nine forward speeds and one reverse speed are achieved by a power transmission apparatus for a vehicle including a double clutch, a plurality of input, output, and idle shafts, a plurality of gears fixed to or rotatable on the shafts, a plurality of synchronizers selectively synchronizing gears to the shafts.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: June 25, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sueng Ho Lee, Seongwook Ji, Woochurl Son, Jihun Lee, Ma Ru Kang, Ki Dong Kim, Dongwon Kim, Chon Ok Kim
  • Patent number: 10309489
    Abstract: A transmission is connectable to an input member and includes an output transfer gear, first and second transmission input shaft members, first, second and third countershaft members, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 4, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Tejinder Singh
  • Patent number: 10272765
    Abstract: A power transmission apparatus for a vehicle may include: a first, second, third, and fourth input shaft; an output shaft; an idle shaft; a fixed transmission performing shifts to fixed shift stages depending on gear ratios of four change gear trains; and a torque assist driving and electronic continuously variable automatic transmission performing a torque assist for a torque input from the fixed transmission and performing electric vehicle driving and electronic continuously variable automatic transmission functions to output the torque through the output shaft. The disclosed power transmission apparatus implements fixed shift stages of four forward speeds and one reverse speed in a dual clutch transmission (DCT) structure that uses three synchronizers.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: April 30, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Wonmin Cho, Seong Wook Hwang, Kijong Park, Seongwook Ji, Ki Dong Kim, Hyun Sik Kwon, Cheol Ho Jang, Jae Chang Kook, Ki Tae Kim
  • Patent number: 10197106
    Abstract: The friction clutch comprises: a driving part comprising at least one first friction element; a driven part comprising a hub and at least one second friction element drivingly connected for rotation with the hub; at least one spring configured to press the friction elements of the driving part and of the driven part against each other by applying an elastic force on these friction elements; and an actuation unit arranged to bring about opening of the friction clutch by applying directly or indirectly on the at least one spring an actuating force directed in the opposite direction to the elastic force so as to move the friction elements away from each other. The actuation unit comprises a thrust bearing, at least one force transmission member and a hollow actuating member arranged to apply the actuating force on the at least one spring via the thrust bearing and the at least one force transmission member. The hollow actuating member is arranged on the opposite side of the hub to the at least one spring.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: February 5, 2019
    Assignee: OERLIKON GRAZIANO S.p.A.
    Inventors: Giorgio Scalici, Fabio Filippo Irato
  • Patent number: 10189478
    Abstract: A method for shifting in a vehicle (1) with a hybrid powertrain (2), the powertrain includes: a combustion engine (3), an electric machine (4), a gearbox (6) with an input shaft (10) and a main shaft (14), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10); and a lay shaft (16), via gear sets (50, 52 and 58, 60, 62) is connected to the input shaft (10) and the main shaft (14), so that they form a split gear unit (13) and a main gear unit (15).
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: January 29, 2019
    Assignee: SCANIA CV AB
    Inventors: Mattias Nilsson, Fredrik Sundén, Mats Liwell, Afram Kourie
  • Patent number: 10166853
    Abstract: A transmission unit includes: input shafts, each of the input shafts being provided with a shift driving gear thereon; output shafts, each of the output shafts being provided with a shift driven gear configured to mesh with a corresponding shift driving; a motor power shaft configured to rotate together with one of the output shafts; and an output unit configured to rotate with one of the output shafts at different speeds and configured to selectively engage with one of the output shafts so as to rotate together with one of the output shafts. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 1, 2019
    Assignee: BYD Company Limited
    Inventors: Dongsheng Yang, Yubo Lian, Jintao Zhang, Hongbin Luo
  • Patent number: 10138983
    Abstract: A constant mesh gear transmission has an input shaft (21, 22), two layshafts (31, 35) and an output shaft (23). Gear wheels are selectively connectable to shafts to provide forward and reverse speed ratios. A common central web (39) provides central support bearings for the shafts. The transmission is stiffened, and allows assembly of components from either end to the middle.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: November 27, 2018
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventors: Markus Hose, Russell Osborn, Fred Hyde, Matt Hole
  • Patent number: 10100903
    Abstract: A transmission may include a first input shaft continuously receiving torque from a power source; a second input shaft selectively receiving torque from the power source through a clutch; a first countershaft and a second countershaft connected with the first input shaft and the second input shaft, respectively, by a transfer gear pair; coupling devices transmitting torque to the first countershaft and the second countershaft from the first input shaft and the second input shaft by selecting the transfer gear pairs; a one-way clutch disposed on the first countershaft to allow torque provided to the first input shaft to be transmitted only to the first countershaft from the first input shaft; and a shifting mechanism including a plurality of shift gear pairs having different gear ratios on the first countershaft, the second countershaft, and the output shaft.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: October 16, 2018
    Assignee: Hyundai Motor Company
    Inventors: Soon Ki Eo, Ki Jong Park, Chon Ok Kim
  • Patent number: 10072733
    Abstract: An automated manual transmission includes: a first input shaft configured to receive rotation power from a power source via a main clutch and a second input shaft configured to always receive the rotation power from the power source. A gearbox part is configured to have a plurality of shifting gear pairs having different gear ratios engaged with the first input shaft and an output shaft and select the shifting gear pair suited for a driving speed by a synchronizer. A counter shaft is configured to be disposed in parallel with the output shaft, and an assist input gear is configured to be coupled with the counter shaft via an assist clutch and engaged with an output gear provided at the output shaft to form a gear ratio of a specific shifting stage.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: September 11, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Soon Ki Eo, Chon Ok Kim, Chae Hong Lim
  • Patent number: 10054196
    Abstract: A constant mesh gearbox has five parallel rotational axes. The input and output axes are not aligned. Up to eight forward speeds and two reverse speeds are disclosed, with two very low ratios suitable for non-highway travel. The transmission is suitable for two and four wheel drive.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: August 21, 2018
    Assignee: JAGUAR LAND ROVER LIMITED
    Inventors: Russell Osborn, Alex Tylee-Birdsall, John Spooner, Steve Mullane, Steve Nesbitt
  • Patent number: 10047830
    Abstract: A transmission for a vehicle may include a first input shaft continuously receiving torque from a power source, a second input shaft selectively receiving torque from the power source through a clutch, a first countershaft and a second countershaft connected with the first input shaft and the second input shaft, respectively, by a transfer gear pair, coupling devices transmitting torque to the first countershaft and the second countershaft from the first input shaft and the second input shaft, respectively, by selecting the transfer gear pairs, a one-way clutch restricting torque provided to the first input shaft to be transmitted only to the first countershaft from the first input shaft, and a shifting mechanism configured to change and output power from the power source to the output shaft by selecting a shift gear pair corresponding to a speed of the vehicle, using a synchronizer.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: August 14, 2018
    Assignee: Hyundai Motor Company
    Inventors: Soon Ki Eo, Yong Seok Choi, Chae Hong Lim
  • Patent number: 10047829
    Abstract: A double clutch transmission for a vehicle may include a first input shaft receiving power through a first clutch, a second input shaft disposed coaxially with the first input shaft and receiving power through a second clutch, a plurality of odd driving gears disposed on the first input shaft to implement odd ranges of a 3-range or more, a plurality of even driving gears disposed on the second input shaft to implement even ranges of a 2-range to an 8-range, a first output shaft and a second output shaft disposed in parallel with the first input shaft and the second input shaft, a plurality of odd driven gears to implement odd ranges by engaging with the odd driving gears, a plurality of even driven gears to implement even ranges by engaging with the even driving gears, and a joint synchro.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: August 14, 2018
    Assignee: Hyundai Motor Company
    Inventors: Yeo Hyeon Gwon, Ki Jong Park
  • Patent number: 10024395
    Abstract: A transmission for a vehicle may include a first input shaft continuously receiving torque from a power source and having a first input transfer gear thereon, a second input shaft selectively receiving torque from the power source through a clutch and having a second input transfer gear thereon, a coupling member configured to allow or restrict rotation of the first input transfer gear relative to the first input shaft, using a difference in rotational speed between the first input shaft and the first input transfer gear, a first countershaft and a second countershaft each having an output transfer gear to engage with the first input transfer gear and the second input transfer gear, and coupling devices selectively coupling the output transfer gears to corresponding countershafts and allowing torque from the power source to be transmitted to a desired shift gear.
    Type: Grant
    Filed: October 31, 2015
    Date of Patent: July 17, 2018
    Assignee: Hyundai Motor Company
    Inventors: Soon Ki Eo, Chon Ok Kim, Chae Hong Lim
  • Patent number: 10012298
    Abstract: A torque converter for coupling an engine to a manual transmission and a method of controlling the same are provided. The torque converter includes a housing rotating with the engine, a cover abutting the housing, a stator, a pump circulating fluid within the torque converter, and a turbine driven by the circulating fluid. An integrated disconnect clutch controls pump speed and a torsional damper attenuates vibrations transmitted through the housing. A first output shaft is coupled with the turbine and drives a first forward gear of the manual transmission while permitting slip. A second output shaft is coupled with the torsional damper, the integrated disconnect clutch, and the pump and drives at least one other forward gear of the manual transmission without slip. An output connection member rotatably couples the pump with the torsional damper, the integrated disconnect clutch, and the second output shaft.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: July 3, 2018
    Assignee: AVL POWERTRAIN ENGINEERING, INC.
    Inventor: Hamid Vahabzadeh
  • Patent number: 10005467
    Abstract: A method of controlling a dual clutch transmission (DCT) for a vehicle includes steps to reduce objectionable noise present during particular driving conditions and when the vehicle is operated using certain driving habits. A DCT engages at least two gear ratios at a time; one gear ratio for the current desired gear and a second gear ratio for the next likely gear. The method detects when conditions are favorable for the objectionable noise and takes action to remove the cause of the objectionable noise.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: June 26, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jayson S. Schwalm, Glenn W. Hoefflin, Daniel J. Wickman, John William Boughner
  • Patent number: 9951845
    Abstract: A transmission including: a first number of input shafts; an output shaft; a second number of gears non-rotatably connected to the output shaft; a third number of lay shafts; and full synchronizer clutches. Each full synchronizer clutch includes: a respective first half synchronizer clutch arranged to non-rotatably connect a respective first gear to a respective lay shaft included in the third number of lay shafts, and disconnect the respective first gear from the respective lay shaft; and a respective second half synchronizer clutch arranged to non-rotatably connect a respective second gear to the respective lay shaft, and disconnect the respective second gear from the respective lay shaft. The transmission is arranged to provide a fourth number of total reverse and forward speed ratios equal to the first number multiplied by the second number multiplied by the third number.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: April 24, 2018
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Jeffrey Hemphill, Edmund Maucher, David Smith
  • Patent number: 9945461
    Abstract: A parallel shift transmission of a motor vehicle comprising splitter and range groups. At least the splitter group is split into two parallel transmission branches having countershafts. One branch can be actuated by a power-shift element to transfer rotation of a drive shaft to a countershaft, via a stepped transmission ratio of the splitter group according to the actuation of one of the transmission branches and then converting and transmitting the rotation, via one of a plurality of range transmission ratios of the range group, to an output shaft. In order to reverse rotation, parallel countershafts can be coupled by individual gearwheel pairs by actuation of associated switching elements such that one countershaft, at the output side of the splitter group in the flow of power flow from the drive to the output shaft, is connected to the other countershaft at a drive side of the range group.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: April 17, 2018
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Reisch, Stefan Beck, Martin Fellmann
  • Patent number: 9920824
    Abstract: A power transmission apparatus may include an first shifting member receiving the torque of the engine from the second input shaft, changing the torque of the engine into first and second preliminarily shifted torques, and outputting the first and second preliminarily shifted torques; a second shifting member receiving the torque of the engine from the third input shaft, 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 selectively 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 eleven forward speed stages and one reverse speed stage, and outputting the eleven forward speed stages and the one reverse speed stage.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: March 20, 2018
    Assignee: Hyundai Motor Company
    Inventors: Seong Wook Hwang, Hyun Sik Kwon, Wonmin Cho, Jae Chang Kook, Seongwook Ji