Interchangeably Locked Patents (Class 74/325)
  • Patent number: 10955036
    Abstract: A power transmission apparatus for a vehicle may include a first input shaft fixedly connected to an engine output shaft, a second input shaft coaxial with the first input shaft a third input shaft coaxial with the second input shaft, an intermediate shaft and at least one output shaft, a planetary gear set mounted on an axis of the intermediate shaft, a plurality of gear sets, each of which allows at least one torque flow between the intermediate shaft, the first, second, and third input shafts, the output shaft and the planetary gear set, a first synchronizer mounted on the output shaft, selectively receiving a torque from the second input shaft, a second synchronizer mounted on the output shaft, selectively receiving a torque from the third input shaft through two paths, and transmitting the received torque to the output shaft, and four clutches each of which facilitating selective connection.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: March 23, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chon Ok Kim, Seong Wook Hwang, Soonki Eo, Minho Chae, Sun Sung Kwon, Yong Uk Shin
  • Patent number: 10948049
    Abstract: A transmission mechanism includes first and second transmission, first and second shafts, a clutch, and a one-way bearing. In the first gear, power is output through the first driving transmission and the one-way bearing; and in the second gear, the power is output through the clutch, the second driving transmission and the one-way bearing.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 16, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Cheng-Ping Yang, Meng-Ru Wu, Ming-Hsien Yang, Peng-Yu Chen, Jui-Tang Tseng
  • Patent number: 10851874
    Abstract: A constant mesh type transmission for a straddled vehicle includes an input shaft; a plurality of drive gears; an output shaft; a plurality of driven gears; and a gear stage setting mechanism, including a ratchet mechanism. The ratchet mechanism includes a n-th speed accelerating pawl, a n-th speed decelerating pawl, a (n+1)-th speed accelerating pawl, a (n+1)-th speed decelerating pawl, a rotary cam, and a plurality of sliders. The rotary cam has a plurality of cam portions on an outer peripheral surface thereof which position the respective guide object parts such that the plurality of sliders raise an accelerating pawl and a decelerating pawl corresponding to a selected gear stage and lower an accelerating pawl and a decelerating pawl corresponding to a non-selected gear stage.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: December 1, 2020
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Tetsushi Saitoh
  • Patent number: 10844936
    Abstract: A constant-mesh type transmission for straddled vehicle with a ratchet mechanism is configured to be mounted on a straddled vehicle and has five or more gear stages in addition to a neutral position. The transmission includes an input shaft; five or more drive gears; an output shaft; an odd-numbered stage hub and an even-numbered stage hub; a plurality of odd-numbered stage driven gears; a plurality of even-numbered stage driven gears; a dog engagement mechanism; and a ratchet mechanism. The ratchet mechanism has an odd-numbered stage accelerating pawl, an odd-numbered stage decelerating pawl, an even-numbered stage accelerating pawl, an even-numbered stage decelerating pawl, and a ratchet control mechanism.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: November 24, 2020
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Tetsushi Saitoh
  • Patent number: 10753432
    Abstract: A power transmission apparatus includes: a first input shaft always receiving an input torque from an engine; second and third input shafts coaxially disposed and selectively connected with the first input shaft; a torque mediating shaft selectively connected with the first input shaft or a transmission housing; first and second intermediate shafts and an output shaft respectively disposed in parallel with the first input shaft; a first preliminary shifting section receiving a torque through a first input gear set, selectively shifting the received torque, and outputting the shifted torque; a second preliminary shifting section including a second shifting gear set which outputs a torque from the first input shaft and stops; and a compound shifting section forming an output torque by the input torque and the first and second shifted torques.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: August 25, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seong Wook Hwang, Woochurl Son, Kijong Park, Sangwon Seo, Yong Uk Shin, Seongwook Ji, Ki Tae Kim, Chon Ok Kim, Wonmin Cho, Ma Ru Kang, Ilhan Yoo, Juhyeon Park, Minho Chae, Dongwoo Kim, Hye Jin Lim, Ki Been Lim, Jin Yong Kim, Soonki Eo, Ki Dong Kim, Woo Jin Chang, Yong Sug Choi, Sun Sung Kwon
  • Patent number: 10711891
    Abstract: Provided is a vehicle speed-change system including the following: a transmission positioned to the rear of a crank shaft of an engine; a transmission case that retains the transmission; a shift mechanism that has a shift cam which performs a speed-change operation of the transmission; and a shift actuator that operates the shift cam. The transmission includes a counter shaft positioned to the rear of the crank shaft, and a drive shaft to which rotation of the counter shaft is transmitted. The shift cam is positioned further to the rear than the counter shaft, and the shift actuator is arranged in a rear portion of the transmission case and to the rear of the shift cam.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: July 14, 2020
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Kei Hasegawa, Koichi Tanaka
  • Patent number: 10563762
    Abstract: Provided is a vehicle speed-change system including the following: a transmission; a transmission case that retains the transmission; a shift mechanism that performs a speed-change operation of the transmission; and a shift actuator that operates the shift mechanism. The shift actuator includes the following: a motor; a transmission mechanism that transmits rotation of the motor; and an actuator output shaft that outputs motive power transmitted by the transmission mechanism. The shift actuator is fixed to a side surface of the transmission case, and is arranged such that at least a portion of the motor overlaps the shift mechanism in a side surface view of the vehicle.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: February 18, 2020
    Assignee: SUZUKI MOTOR CORPORATION
    Inventor: Kei Hasegawa
  • Patent number: 10508724
    Abstract: A method for shift control of an automated auxiliary transmission that is mounted in a drive train of a motor vehicle between a drive motor (AM) and a final drive, and includes at least one multi-step main gearing (HG) and one two-step front-mounted group (VG) connected upstream of the main gearing (HG), and with which the main gearing (HG) can be shifted via unsynchronized clutches and the front-mounted group can be shifted via synchronized clutches. Depending on the currently existing driving or operating situation, a gear change is performed in the auxiliary transmission through a change in the transmission ratio step (G1, G2, G3) of the main gearing (HG) while maintaining the currently engaged transmission ratio step (K1, K2) in the front-mounted group (VG).
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: December 17, 2019
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Mario Steinborn, Tobias Mayerhofer
  • Patent number: 10451167
    Abstract: In a standard gear unit, which, in a first variant, is implemented with an output-side bearing and an outgoing shaft, and which, in a second variant, is able to be implemented with an intermediate flange inserted at the bearing position of the output-side bearing, the intermediate flange is formed such that, with an associated, differently formed outgoing shaft, a robot interface or flange block interface is able to be formed on the output side.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: October 22, 2019
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Egon Goppelsröder, Eberhard Tüngler, René Richert
  • Patent number: 10381912
    Abstract: A magnetic transmission is provided with: an inner rotor; an outer rotor; and a magnetic-field-modulating stator disposed coaxially between the inner rotor and the outer rotor. The inner rotor is provided with a first magnet array and a second magnet array arranged in the direction of the central axis and disposed at different pitches along the circumferential direction. The outer rotor is provided with a magnet array disposed along the circumferential direction. The magnetic-field-modulating stator is provided with a first magnetic body array and a second magnetic body array opposing the first magnet array and the second magnet array, respectively.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: August 13, 2019
    Assignee: Hitachi Metals, Ltd.
    Inventor: Akihiro Kimoto
  • Patent number: 10288150
    Abstract: The present disclosure provides a multiple speed transmission having an input member, an output member, a plurality of planetary gearsets, a plurality of interconnecting members and a plurality of torque-transmitting mechanisms. Each of the plurality of planetary gearsets includes a sun gear, a ring gear, and a carrier member with pinion gears. The input member is selectively interconnected with at least one member of one of the plurality of planetary gear sets, and the output member is continuously interconnected with another member of one of the plurality of planetary gear sets. At least ten forward speeds and one reverse speed are achieved by the selective engagement of the plurality of torque-transmitting mechanisms.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: May 14, 2019
    Assignee: ALLISON TRANSMISSION, INC.
    Inventors: Joerg Mueller, Rico Resch, Mirko Leesch
  • Patent number: 10267384
    Abstract: The present disclosure provides a multiple speed transmission having an input member, an output member, a plurality of planetary gearsets, a plurality of interconnecting members and a plurality of torque-transmitting mechanisms. Each of the plurality of planetary gearsets includes a sun gear, a ring gear, and a carrier member with pinion gears. The input member is selectively interconnected with at least one member of one of the plurality of planetary gear sets, and the output member is continuously interconnected with another member of one of the plurality of planetary gear sets. At least ten forward speeds and one reverse speed are achieved by the selective engagement of the plurality of torque-transmitting mechanisms.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: April 23, 2019
    Assignee: ALLISON TRANSMISSION, INC.
    Inventors: Joerg Mueller, Rico Resch, Mirko Leesch
  • Patent number: 10267385
    Abstract: The present disclosure provides a multiple speed transmission having an input member, an output member, a plurality of planetary gearsets, a plurality of interconnecting members and a plurality of torque-transmitting mechanisms. Each of the plurality of planetary gearsets includes a sun gear, a ring gear, and a carrier member with pinion gears. The input member is selectively interconnected with at least one member of one of the plurality of planetary gear sets, and the output member is continuously interconnected with another member of one of the plurality of planetary gear sets. At least ten forward speeds and one reverse speed are achieved by the selective engagement of the plurality of torque-transmitting mechanisms.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: April 23, 2019
    Assignee: Allison Transmission, Inc.
    Inventors: Joerg Mueller, Rico Resch, Mirko Leesch
  • Patent number: 10234000
    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: March 19, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sueng Ho Lee, Ki Tae Kim, Woo Jin Chang, Jihun Lee, Ma Ru Kang, Ki Dong Kim, Seongwook Ji, Chon Ok Kim
  • Patent number: 10221921
    Abstract: A torque split dual-clutch transmission assembly is disclosed that splits the torque generated by an engine between at least two sets of transfer gears that are selectively coupled to first and second layshafts or intermediate shafts. A first input hub is connected to the first layshaft by a first clutch and a second input hub is connected to the second layshaft by a second clutch. A first gearset is carried on the first layshaft and a second gearset is carried on the second layshaft. Each set of transfer gears receives torque from either the transmission input shaft or the first and second layshafts in response to contemporaneous engagement of the first clutch and the second clutch, which can be used during vehicle launch to split the torque applied to the first and second clutches.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: March 5, 2019
    Assignee: AVL POWERTRAIN ENGINEERING, INC.
    Inventor: Gregory Mordukhovich
  • Patent number: 10174812
    Abstract: A transmission for a vehicle may include a first input shaft continuously receiving rotational power from a power source; a second input shaft selectively receiving the rotational power of the power source through a clutch; a first counter shaft and a second counter shaft connected to the first input shaft and the second input shaft through a transfer gear pair, respectively; a controlling device selecting the transfer gear pair to transfer the rotational power from the first input shaft and the second input shaft to the first counter shaft and the second counter shaft; a one-way clutch allowing the rotational power provided to the first input shaft to be transferred only from the first input shaft toward the first counter shaft.
    Type: Grant
    Filed: November 21, 2015
    Date of Patent: January 8, 2019
    Assignee: Hyundai Motor Company
    Inventors: Soon Ki Eo, Chon Ok Kim, Chae Hong Lim
  • Patent number: 10161498
    Abstract: A gear box includes a gear box body for accommodating a gear, multiple shaft holes which are formed on a side wall portion of the gear box body to support a shaft, a fixing portion which is provided in the gear box body and on which a fixing member for installing the gear box body on an installation surface parallel to the shaft is mounted, and an output hole reinforcement rib which is formed on the side wall portion and extends from a peripheral edge portion of an output shaft hole for supporting an output shaft among the multiple shaft holes toward the fixing portion.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: December 25, 2018
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Yasuhiko Sasaki, Kazuhisa Abe, Ryosuke Yahara
  • Patent number: 10112483
    Abstract: A vehicle mounted hydraulic pump assembly includes a gearbox that is configured to be connected to a power take-off that is driven by a transmission of a four-wheel drive vehicle. The gearbox includes an input gear and an output gear where a radius of the input gear is the same as a radius of an output gear. A female output connector is associated with the output gear and is configured to be disposed below a forward driveshaft that is associated with the transmission. A hydraulic pump is connected to the gearbox and is configured to be disposed forward of a transfer case that is also associated with the transmission.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: October 30, 2018
    Assignee: HHG Holdings, LLC
    Inventor: Philip DeCorte
  • Patent number: 10047807
    Abstract: A method includes determining, via a processor, a speed ratio of a transmission system including a transmission based at least in part on an output speed of the transmission system and an input speed of the transmission system; determining, via the processor, a first torque percentage for a first clutch coupled to the transmission based at least in part on the speed ratio; determining, via the processor, a second torque percentage for a second clutch coupled to the transmission based at least in part on the speed ratio; outputting, via the processor, a signal indicative of a first torque command to a clutch assembly based at least in part on the first torque percentage; and outputting, via the processor, a signal indicative of a second torque command to the clutch assembly based at least in part on the second torque percentage.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 14, 2018
    Assignee: CNH Industrial America LLC
    Inventor: Garth Harvey Bulgrien
  • Patent number: 10018251
    Abstract: A transmission is connectable to an input member and includes an output transfer gear, first and second transmission input shaft members, first and second 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 9, 2015
    Date of Patent: July 10, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Tejinder Singh, Daryl A. Wilton, Elizabeth I. Wooden
  • Patent number: 9989134
    Abstract: A dual clutch transmission 1 includes a first clutch 2, a second clutch 3, a first input shaft 4, a second input shaft 5, a counter shaft 6, an output shaft 7, a first splitter gear changing portion 10, a second splitter gear changing portion 20, and an output portion 30. The first splitter gear changing portion 10 has a first input gear 11a, a first counter gear 11b, a second input gear 12a, a second/counter gear 12b, and a first coupling mechanism 13. The second splitter gear changing portion 20 has an input/output gear 21a, a third counter gear 21b, a second coupling mechanism 22, and a third coupling mechanism 23. The output portion 30 has a fourth counter gear 31a, a forward output gear 31b, and a fourth coupling mechanism 33.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: June 5, 2018
    Assignee: ISUZU MOTORS LIMITED
    Inventor: Sho Ozaki
  • Patent number: 9920816
    Abstract: A transmission that reduces the difference of rotational speed when engaging a main shaft-side sprocket and a main shaft-outer shaft, in a low-speed traveling mode. When shifting from first gear to neutral in the transmission, a dog on a drive gear is engaged with a dog hole in a main shaft-side sprocket, engagement between a dog on a driven gear for first gear and a dog hole in a driven gear is released, and then a first clutch and a second clutch are disconnected with the drive gear and the main shaft-side sprocket being engaged.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: March 20, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kinya Mizuno, Yasushi Fujimoto, Eiji Kittaka, Hiroyuki Makita
  • Patent number: 9772034
    Abstract: A power unit having a crankcase and peripheral devices wherein a driving source for a gear shifting device is disposed so as to be displaced below the crankcase. An engine includes a gear speed change mechanism having a plurality of gear pairs for changing the speed of a rotational force of a crankshaft. A gear shifting device includes at least a plate-shaped shift arm rocking about a shift spindle to perform a gear pair changing operation on the gear speed change mechanism. A crankcase houses the gear speed change mechanism and the gear shifting device with an oil pan attached to a lower portion of the crankcase. A communicating hole communicating with the oil pan is formed in a bottom portion of the crankcase with the bottom portion being located below the shift arm, and a rocking range of the shift arm partly overlaps the communicating hole.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: September 26, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Atsushi Chiba, Tensei Hayashi, Masazumi Naito
  • Patent number: 9752654
    Abstract: A dual-clutch transmission has two input shafts for connection to a power shift clutch, at least one countershaft offset in parallel to the input shafts, an output gearwheel designed as an idler gear and situated coaxially with respect to the countershaft, at least one gearwheel plane having an idler gear situated coaxially with respect to the countershaft, and a shifting unit having a first shift position in which the output gearwheel and the countershaft are connected to one another in a rotationally fixed manner. The shifting unit has a second shift position in which the idler gear and the output gearwheel are directly connected to one another in a rotationally fixed manner.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: September 5, 2017
    Assignee: Daimler AG
    Inventor: Carsten Gitt
  • Patent number: 9566967
    Abstract: A gearing unit of a motor vehicle actuator, in particular an electric parking brake, includes a gearing housing in which a driven first shaft and a driving second shaft having fixed rotational axes are located. A first toothed wheel is mounted on the first shaft and a second toothed wheel is mounted on the second shaft. The first toothed wheel and the second toothed wheel engage with one another through a third toothed wheel. The housing for the third toothed wheel has at least two spatially offset bearing points in order to adjust a transmission ratio between the first shaft and the second shaft. An electric parking brake having a gearing unit is also provided.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: February 14, 2017
    Assignee: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wuerzburg
    Inventor: Stephan Roos
  • Patent number: 9512899
    Abstract: A method of stepping up the speed of a rotary motion from a first speed, supplied to an input shaft (26), to a second speed delivered by an output shaft (28), comprises transmitting said rotary motion from said input shaft (26), via a drive gear (34) of said input shaft (26), the drive gear (34) being helical and having a first helix angle (?in), to a layshaft arrangement, so as to generate a first axial thrust (F1) of the input shaft (26) in a first axial direction; transmitting said rotary motion from said layshaft arrangement, via a driven gear (44) of said output shaft (28), said driven gear (44) being helical and having a second helix angle (?out) that is larger than said first helix angle (?in), to said output shaft (28), so as to generate a second axial thrust (F2) of the output shaft (28) in a second direction, said second direction being substantially opposite to said first direction; and applying said first axial thrust (F1) and said second axial thrust (F2) to the same location of an axially rigid
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: December 6, 2016
    Assignee: AUTOINVENT TRANSIP AB
    Inventor: Niklas Bennstedt
  • Patent number: 9429213
    Abstract: A multi-clutch transmission is provided with a first and a second input frictional clutch, an input arrangement for establishing a driving connection of a prime mover and the first and second frictional clutches, and a main transmission. The main transmission has a first and a second rotational axis about which a main shaft and a countershaft is arranged respectively, an output shaft and connection means for establishing a driving connection between the main shaft and the output shaft, and least two input shafts, which are connected to the first and second input frictional clutch, and a reverse shaft provided with a first reverse gear wheel. A reverse gear is achieved by transferring power over the reverse shaft to the output shaft.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: August 30, 2016
    Assignee: Volvo Lastvagnar AB
    Inventors: Anders Hedman, Daniel Stàlberg, Christian Wargh
  • Patent number: 9423004
    Abstract: A gearbox housing defines a first enclosure for reception therein of at least two different diameter size first gearwheels. A second gearwheel has a second axis of rotation and is disposed at selected locations that permit intermeshing of the second gearwheel with one of the first gearwheels and a third gearwheel as well as a replacement first gearwheel and the third gearwheel.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 23, 2016
    Inventor: Domenico Liccardi
  • Patent number: 9303697
    Abstract: A driving system of an electric vehicle and an electric vehicle comprising the same are provided. The driving system comprises: a driving motor, a transmission and a hydraulic system. The transmission may include an input shaft, an output shaft, a first transmission unit, a first clutch, a second transmission unit and a second clutch.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 5, 2016
    Assignees: SHENZHEN BYD AUTO R&D COMPANY, BYD COMPANY LIMITED
    Inventors: Yi Ren, Guangquan Chen, Kaizhao Li, Daqi Chen, Hengjun Zhai, Shuanghong Jing, Xin Wen
  • Patent number: 9243687
    Abstract: A power transmitting apparatus for a vehicle achieves seven forward speeds with a minimal number of input gears disposed on input shafts, since the second speed gear and the fourth speed gear are simultaneously engaged with the second input gear and the third speed gear and the seventh speed gear are simultaneously engaged with the third input gear, and distortion of step ratios at the high-speed region may be prevented.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: January 26, 2016
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sueng Ho Lee, Chang Wook Lee, Jongsool Park
  • Patent number: 9199530
    Abstract: A power transmission apparatus for a vehicle includes: a first clutch and a second clutch, a first input shaft receiving rotary power of the engine through the first clutch and having a plurality of input gears, a second input shaft receiving rotary power of the engine through the second clutch, a planetary gear set having first rotary element connected with the second input shaft, second rotary element connected with the first input shaft, and third rotary element being directly connected with a transmission housing, a first transmission outputting mechanism to output the rotary power transferred from the first input shaft and a second transmission outputting mechanism to output the rotary power transferred from the first input shaft, a motor/generator transferring the rotary power to the first and second transmission outputting mechanisms, and a final deceleration mechanism finally decelerating the rotary power transferred from the transmission outputting device.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: December 1, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Wan Soo Kim
  • Publication number: 20150122063
    Abstract: A transmission for a power tool includes an intermediate shaft and first and second driving gears coupled for co-rotation with the intermediate shaft. The transmission also includes an output shaft having first and second driven gears continuously engaged with the respective first and second driving gears. The transmission further includes a hub coupled for co-rotation with the output shaft, and a collar. The collar is axially movable along the output shaft between a first position in which the collar couples the first driven gear to the hub for co-rotation with the output shaft, and a second position in which the collar couples the second driven gear to the hub for co-rotation with the output shaft.
    Type: Application
    Filed: October 27, 2014
    Publication date: May 7, 2015
    Inventor: William A. Elger
  • Patent number: 9003904
    Abstract: A transmission assembly for a vehicle includes a transmission mechanism, a clutch unit and a switching mechanism. The transmission mechanism includes first and second gears meshing with each other. The clutch unit is slidable along a crankshaft rotation axis between an engaging position, in which the clutch unit engages the first gear, and a disengaging position, in which the clutch unit is disengaged from the first gear. The switching mechanism includes a motor, and a clutch-driving member that is driven by the motor to move relative to the transmission mechanism and the clutch unit and to drive sliding movement of the clutch unit from the disengaging position to the engaging position.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: April 14, 2015
    Assignee: Kwang Yang Motor Co., Ltd.
    Inventors: Chun-Kai Wang, Chao-Chang Ho
  • Patent number: 8997594
    Abstract: A transmission (12) for a vehicle (10) includes a gear arrangement having a gear shaft (44) and a gear (48,66) mounted to the gear shaft (44). The gear (48,66) is axially movable and rotationally fixed relative to the gear shaft (44). A housing (28) includes an access opening (56) and an access cover (54) over the access opening (56). The access cover (54) rotatably carries one end of the gear shaft (44). The access opening (56) is sized and shaped to allow the gear (48,66) to be moved through and out of the housing (28).
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: April 7, 2015
    Assignee: Deere & Company
    Inventors: Herbert Allen Larsen, Raymond Donald Meek, Roman Cisek
  • Patent number: 8984976
    Abstract: The transmission comprises: a primary shaft; a secondary shaft; a gearing of first speed comprising a first driving gearwheel carried by the primary shaft and a first driven gearwheel carried by the secondary shaft and permanently meshing with the first driving gearwheel; a gearing of second speed comprising a second driving gearwheel carried by the primary shaft and a second driven gearwheel carried by the secondary shaft and permanently meshing with the second driving gearwheel; an overrunning clutch associated to one of the first driving gearwheel and first driven gearwheel to allow the transmission of the torque via the gearing of first speed only in the direction from the primary shaft to the secondary shaft; a first coupling device arranged to connect either of the first driving gearwheel and first driven gearwheel, namely the gearwheel to which the overrunning clutch is associated, for rotation directly with the respective shaft, so as to allow the transmission of the torque via the gearing of first sp
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: March 24, 2015
    Assignee: Oerlikon Graziano S.p.A.
    Inventor: Carlo Cavallino
  • Patent number: 8984989
    Abstract: Clutch arrangement for a motor vehicle drive train. The clutch arrangement has a first and a second clutch which are embodied as normally open clutches. The first clutch can be activated from an open position into a closed position by means of a first actuator arrangement. The second clutch can be activated from an open position into a closed position by means of a second actuator arrangement. The clutch arrangement has a locking device for locking a clutch in the closed position. Only the second clutch can be locked in the closed position by means of the locking device, while the first clutch cannot be locked in the closed position. Thus, the first actuator arrangement has to be supplied with energy in order to secure the first clutch in the closed position.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: March 24, 2015
    Assignee: GETRAG Getriebe-und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG
    Inventors: Uli Christian Blessing, Guenter Ruehle, Martin Seufert
  • Patent number: 8978498
    Abstract: An interlocking device arranged to prevent at least one forbidden combination of engaged/disengaged positions of three tooth clutch groups in a vehicle transmission is provided. Each tooth clutch group is arranged to rotationally lock/unlock a shaft from a gearwheel. A shift rod is arranged to push a tooth clutch between engaged/disengaged position. The interlocking device includes movable elements where each movable element is directed towards one of the shift rods in order to lock one of the tooth clutch groups in the disengaged position, and an interlocking element arranged in the middle of the movable elements. A diameter of the interlocking element and lengths of the movable elements are adapted to allow only two of the tooth clutch groups to be engaged simultaneously.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: March 17, 2015
    Assignee: Volvo Lastvagnar AB
    Inventors: Klas Bergström, Anders Hedman
  • Patent number: 8943917
    Abstract: A manual transmission includes an input member, an output member, a transmission input shaft, a countershaft, a reverse shaft, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies. 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: October 20, 2010
    Date of Patent: February 3, 2015
    Assignee: GM Global Technology Operations, LLC
    Inventors: James B. Borgerson, Scott H. Wittkopp
  • 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: 8910535
    Abstract: A vehicle transmission has at least three transmission gears. The at least three transmission gears are selectively engaged by at least three shifting sleeves. The shifting sleeves are actuated by two shift forks. Each shift fork is moved by a corresponding shift drum. The shift drums are disposed on a shift drum shaft. By rotating the shift drum shaft, each of the at least three transmission gears can be engaged in sequence. The two shift drums are spring biased.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: December 16, 2014
    Assignee: BRP-Powertrain GmbH & Co. KG
    Inventors: Markus Hochmayr, Erik Hoser, Gerhard Wiesinger
  • Patent number: 8881614
    Abstract: A vehicle transmission includes a transmission input and output along with a main shaft and a countershaft that create a plurality of transmission ratios for providing different gears when combined. The vehicle transmission also includes a range change transmission. The vehicle transmission also has, in the direction of the propulsion power flow from the transmission input to the transmission output, a performance interface downstream of the countershaft and upstream of the range change transmission for connecting an electric motor.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: November 11, 2014
    Assignee: Voith Patent GmbH
    Inventors: Martin Becke, Werner Klement, Dieter Nobis
  • Publication number: 20140326092
    Abstract: A pair of toothed wheels that mesh with each other includes a plateau portion. The surface of the plateau portion is a plateau-structure surface formed on each tooth face of each of the pair of the toothed wheels, with peak portions of convexities, out of a plurality of concavities and the convexities provided on the each tooth face, being flat. A reduced valley depth Rvk of the plateau portion of one of the pair of the toothed wheels as defined in JISB0671-2 is greater than the reduced valley depth Rvk of the plateau portion of the other of the pair of the toothed wheels. The area occupied by the concavities in the plateau portion of the one of the toothed wheels is larger than the area occupied by the concavities in the plateau portion of the other toothed wheel.
    Type: Application
    Filed: October 5, 2012
    Publication date: November 6, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Tokozakura, Akira Murakami, Yuya Takahashi, Keisuke Ichige, Masanori Iritani, Hideyuki Suzuki
  • Patent number: 8850913
    Abstract: A manual transmission of a motor vehicle, is actuated by manually shifting a shift lever in a gearshift console having a selector gate and shifting gates in a multiple-H shifting pattern, with coaxial input and output shafts and a parallel countershaft, and with a number of gearset planes. Transmission gears are implemented by engaging at least two associated gear clutches. The gear clutches are divided into a selection group and a shifting group. The selection group gear clutches can be actuated exclusively by moving the shift lever in the selection gate so as to couple the input and counter-shafts. The shifting group gear clutches can be actuated exclusively by moving the shift lever in the shifting gates so as to couple the output and counter-shafts, and the gear clutch respectively engaged in the shifting gates having the two opposite gears is a selection group gear clutch.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: October 7, 2014
    Assignee: ZF Friedrichshafen AG
    Inventor: Christian Nikolaizig
  • Patent number: 8827858
    Abstract: A multi-speed countershaft transmission for a vehicle is provided. The transmission includes a main shaft and countershaft gears that receive input directly from an input member. A plurality of torque transmitting mechanisms may be selectively applied to synchronize a range gear to a countershaft. The countershaft transfers torque to an output gear set, which may transfer torque to a planetary gear set. The available range gears include a plurality of forward speed ratios and at least one reverse speed ratio. One or more power take-off sections may also be provided. One or more other torque transmitting mechanisms may be selectively applied to bypass the countershaft and/or to couple the planet carrier of the planetary gear set to another component of the planetary gear set.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: September 9, 2014
    Assignee: Allison Transmission, Inc.
    Inventor: Dane L. Rodgers, II
  • Patent number: 8813592
    Abstract: Two-gear transmissions for electric machines are provided, which include a primary shaft; a secondary shaft; a first gear set which includes a first driving gearwheel and a first driven gearwheel, one of these gearwheels including a first hub and a ring gear; a second gear set which includes a second driving gearwheel and a second driven gearwheel; an overrunning clutch interposed between the ring gear and the first hub; a first coupling device arranged to connect the ring gear for rotation directly with the respective shaft and comprises a second hub and a sliding sleeve; a second coupling device arranged to connect either the second driving gearwheel or the second driven gearwheel for rotation with the respective shaft; connection elements connecting the first hub for rotation with the second hub; and elastic elements applying on the first and second hubs a biasing torque to urge them towards an end-of-travel position.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: August 26, 2014
    Assignee: Oerlikon Graziano S.p.A.
    Inventors: Stefano Bertolotto, Giorgio Scalici
  • Patent number: 8813591
    Abstract: A magnetic gear arrangement comprises: a first gear system having a plurality of first gear members, each first gear member generating a respective first magnetic field for that gear member; a second gear system having a second gear member generating a second magnetic field; and a coupling device which provides arrangements of interpoles between the first gear system and the second gear system. The first gear members are changeably selectable by the coupling device such that the interpoles couple the first magnetic field of a selected first gear member to the second magnetic field to produce a gear ratio between the first gear system and the second gear system, the gear ratio being changeable by changing the selected first gear member.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: August 26, 2014
    Assignee: Rolls-Royce PLC
    Inventor: Huw L. Edwards
  • Patent number: 8800405
    Abstract: A transmission system has a clutch module with a single input and two outputs. First and second clutch devices are positioned between the input and the two outputs. A transmission module, having two inputs and a single output, includes two sub-transmissions where at least a single speed transforming gear or a single transmission clutch is located between an input and an output of each sub-transmission. The two outputs of the clutch module are connected here to the two inputs of the transmission module. Between the input and the first output of the clutch module is located a first planetary gear set, and between the input and the second output is located a second planetary gear set.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: August 12, 2014
    Assignee: DTI Group B.V.
    Inventors: Roell Marie Van Druten, Alexander Franciscus Anita Serrarens, Bas Gerard Vroemen
  • Publication number: 20140208879
    Abstract: A gearbox housing defines a first enclosure for reception therein of at least two different diameter size first gearwheels. A second gearwheel has a second axis of rotation and is disposed at selected locations that permit intermeshing of the second gearwheel with one of the first gearwheels and a third gearwheel as well as a replacement first gearwheel and the third gearwheel.
    Type: Application
    Filed: January 25, 2013
    Publication date: July 31, 2014
    Inventor: Domenico Liccardi
  • Publication number: 20140209398
    Abstract: A vehicular motor drive device is provided with an electric motor and a speed reducer having two gear trains capable of switching a fixed gear ratio. Driving force curves, which are determined depending on an output characteristic of the motor and represent a relationship between an output rotation speed in the respective gear train and an output torque, which is obtainable maximally at such output rotation speed, have a constant torque curve section, a gradually decreasing torque curve section and a constant speed curve section. The gear trains have respective speed reduction ratios such that the driving force curve of a gear train having a larger speed reduction ratio and the driving force curve of a gear train having a smaller speed reduction ratio continue to and partially overlap with each other in the gradually decreasing torque curve sections.
    Type: Application
    Filed: September 4, 2012
    Publication date: July 31, 2014
    Applicant: NTN CORPORATION
    Inventors: Fumihiro Isobe, Tomoaki Makino
  • Patent number: 8776628
    Abstract: A motorcycle having a transmission which includes a counter shaft to which a rotation of a crankshaft disposed in an engine is transmitted and a drive shaft to which a rotation of the counter shaft is transmitted. A pair of drive gears mounted on the counter shaft so as to be rotated integrally with the counter shaft, and a pair of driven gears mounted on the drive shaft so as to be meshed with the pair of drive gears, respectively, to be rotatable therewith, and a friction ring is interposed between the pair of driven gears.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: July 15, 2014
    Assignee: Suzuki Motor Corporation
    Inventor: Masato Yamazaki