Interchangeably Locked Patents (Class 74/325)
  • 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: 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: 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: 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
  • Patent number: 8768588
    Abstract: A transmission includes a controller being provided with a change-speed stage anticipator. The controller adopts a time, which one of the transmission's gear-mechanism selectors requires in shifting a current change-speed stage to another change-speed stage, as a pre-shift time for selecting the latter change-speed stage. The change-speed stage anticipator operates the one of the gear-mechanism selectors while adopting a temporary change-speed stage as a subsequent change-speed stage when the temporary change-speed stage, which is estimated from a state of vehicle after the pre-shift time, the state of vehicle being relevant to each element of an anticipated change-speed stage group that is made up of one or more of the change-speed stages that can be selected by the one of the gear-mechanism selectors being set on one of the transmission's input shafts that is disconnected from a power source, coincides with an anticipated change-speed stage that corresponds to the pre-shift time.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: July 1, 2014
    Assignees: Aisin AI Co., Ltd., Aisin AW Co., Ltd.
    Inventors: Hiroki Hatori, Hiroshi Toyoda, Takeshige Miyazaki, Yoshiki Ito, Kiyoshi Nagami, Atsushi Takeuchi
  • Patent number: 8757018
    Abstract: A device for changing a transmission ratio between a turbine shaft and a shaft of a starter-generator of an aeroengine, the device including: first and second fixed gear wheels carried by the shaft of the starter-generator; first and second idler gearwheels carried by the turbine shaft, and meshing respectively with the first and second fixed gearwheels to define different gear ratios; a changeover sleeve interposed between the idler gearwheels and mechanically coupled to the turbine shaft, the changeover sleeve being movable in translation on the turbine shaft between two coupling positions; and a mechanism causing the changeover sleeve to move in translation automatically from either one of its coupling positions to the other one when the sum of torques between the turbine shaft and the starter-generator shaft changes sign.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: June 24, 2014
    Assignee: Snecma
    Inventor: Bruno Robert Gaully
  • Patent number: 8746096
    Abstract: A drive arrangement for a motor vehicle includes two driven axles, wherein at least one of the axles can be connected and disconnected, with a variable speed transmission having at least one input shaft, two driven shafts, each driven shaft driving a respective axle, and several forward gears and optionally one reverse gear which can be switched via gear wheels and synchronous couplings. The drive arrangement can be easily switched between different drive modes by dividing the variable speed transmission into two sub-transmissions, of which one sub-transmission drives exclusively a first axle via a portion of the forward gears and the one driven shaft and the second sub-transmission drives both driven shafts via the remaining portion of the forward gears and optionally the reverse gear.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: June 10, 2014
    Assignee: Audi AG
    Inventor: Johann Märkl
  • Publication number: 20140150582
    Abstract: A gear box includes an output shaft defining multiple output drivers and includes a plurality of gear sets having the same diametral pitch. A common input shaft is operatively attached to each of the plurality of gear sets such that the gear sets rotate continuously and concurrently with rotation of the input shaft. Each of the output drivers is operatively attached to the output shaft and rotatably driven by a respective one of the plurality of gear sets. The multiple output drivers share a common axis of rotation with the output shaft. The output speed of the gear box may be changed by disconnecting one of the output drivers from a driven device and reconnecting another one of the output drivers to the driven device. The output speed of the gear box may be changed without having to disengage and/or change out any of the gears in the gear box.
    Type: Application
    Filed: December 3, 2012
    Publication date: June 5, 2014
    Applicant: MORRISON CONTAINER HANDLING SOLUTIONS, INC.
    Inventors: Nick Wilson, Cezary Mroz
  • Patent number: 8714040
    Abstract: A manual transmission for vehicles includes an input shaft on which a first synchronizer mechanism including first and second input gears, third, fourth, fifth, and sixth input gears are disposed, an output shaft on which a first output gear, first and second speed gears engaged respectively to the first and second input gears, a second synchronizer mechanism including third and fourth speed gears engaged respectively to the third and fourth input gears, and a third synchronizer mechanism including fifth and sixth speed gears engaged respectively to the fifth and sixth input gears, a reverse speed output shaft on which a second output gear and a fourth synchronizer mechanism including a reverse speed gear engaged to the third speed gear, and a driven gear engaged to the first and second output gears so as to receive torque, and delivering the torque to a differential.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: May 6, 2014
    Assignee: Hyundai Motor Company
    Inventors: Wan Soo Oh, Jae Woong Hwang, Haeng Woo Park
  • Patent number: 8701516
    Abstract: A sleeve stroke SSt of a specific sleeve is gradually increased from “0” (after t1) in a state in which a vehicle is stopped, a transmission is in a neutral state (all sleeve strokes SSt=0 (original position)), a clutch is in a disengaged state (clutch stroke CSt=0 (original position)), and an engine is operating (engine rotational speed NE>0). Upon determination that the sleeve stroke SSt has reached a predetermined value A, at which synchronization operation of a corresponding synchronization mechanism is performed, the sleeve stroke SSt is fixed to the predetermined value A, and an operation of increasing the clutch stroke CSt from “0” in a press engagement direction is started (time t2). An engagement start point CStlearn of the clutch is obtained based on a change in the rotational speed Ni of an input shaft Ai of the transmission after that (time t3).
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: April 22, 2014
    Assignee: Aisin AI Co., Ltd.
    Inventors: Hiroshi Toyoda, Takeshige Miyazaki
  • Patent number: 8701514
    Abstract: A speed reducer used for a wind power generation facility includes a two-stage reduction mechanism of at least a front stage reduction mechanism and a rear stage reduction mechanism; a coupling that is arranged between the front stage reduction mechanism and the rear stage reduction mechanism and has a torque limiter mechanism which does not transfer a torque exceeding a predetermined value; and an oil seal that partitions and seals a space where the front stage reduction mechanism is accommodated and a space where the coupling is accommodated. The front stage reduction mechanism is separable from the coupling in a sealed state by the oil seal.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: April 22, 2014
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Kiyoji Minegishi
  • Patent number: 8696505
    Abstract: A hybrid power train for vehicles uses a double clutch transmission (DCT) to further improve the fuel efficiency of a vehicle, obtain a sporty transmission, and prevent the entire length thereof from being excessively lengthened, thereby sufficiently securing the ability of being mounted in a vehicle.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: April 15, 2014
    Assignee: Hyundai Motor Company
    Inventors: Jin Woo Lee, Jeong Heon Kam
  • Publication number: 20140090497
    Abstract: A disconnect shaft arrangement interposes a biasing element between a shoulder formed on the disconnect shaft and a cup-shaped washer, in which the cup-shaped washer is sized and configured to be axially displaceable with respect to the disconnect shaft. The cup-shaped washer selectively engages an axially fixed adjacent structure, such as a thrust washer, during disengagement of the disconnect shaft and attendant spring compression. The present disconnect shaft arrangement obviates the need for a retaining ring against which the spring compresses, such that the relatively deep retaining ring groove needed for such a retaining ring need not be cut into the outer surface of the disconnect shaft. Removal of material in the outer surface of the shaft is therefore minimized, such that the torque transmission capability of the shaft is maximized.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 3, 2014
    Applicant: AUBURN GEAR, INC.
    Inventor: Michael J. Eifert
  • Patent number: 8683885
    Abstract: In a friction drive transmission apparatus arranged to transmit power by a frictional transmission force between two roller units pressed against each other, there is provided a pressing force imparting means to increase and decrease a pressing force imparted to a roller pair to vary the frictional transmission force between both roller units smoothly at the time of a shift.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: April 1, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Takeshi Yamamoto
  • Patent number: 8650979
    Abstract: A drive system of an electric vehicle includes a drive motor, a transmission and a hydraulic system. The transmission has an input shaft, a countershaft, an output shaft, a first transmission unit placed between the countershaft and the output shaft, a first clutch, a second transmission unit placed between the countershaft and the input shaft, and a second clutch. The drive motor is attached to the input shaft, which is attached to the countershaft to provide power of the drive motor to the countershaft; the first clutch is configured for linking or cutting off the power transmission between the countershaft and the first transmission unit; and the second clutch is configured for linking or cutting off the power transmission between the countershaft and the second transmission unit. The first transmission unit has a first transmission ratio greater than a second transmission ratio of the second transmission unit.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: February 18, 2014
    Assignee: BYD Company Limited
    Inventors: Yi Ren, Ruru Niu, Zhengguang Han, Zhouping Tang, Wei Li, Feng Ke, Shenglin Yang, Shibo Dong
  • Publication number: 20140041473
    Abstract: A transmission includes an input shaft to receive the rotation of an engine, drive gears attached to the input shaft so as to freely rotate, an output shaft to output rotation following a gear shift, driven gears that are attached to the output shaft so as to freely rotate and mesh with the drive gears, an engagement mechanism to fix a gear to be used in a gear shift, from among the drive gears, to the input shaft to be incapable of relative rotation prior to a gear shift, and a selector mechanism to fix, during the gear shift, the driven gear of a corresponding gear position, which meshes with the drive gear fixed to the input shaft by the engagement mechanism, to the output shaft to be incapable of relative rotation.
    Type: Application
    Filed: July 24, 2013
    Publication date: February 13, 2014
    Applicant: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Yasuyuki Ukon, Keisuke Shibuya
  • Patent number: 8646349
    Abstract: The hybrid propulsion system for an internal combustion engine having a mechanical gearbox and an electric machine. A gear shift device includes a plurality of sliding engagement sleeves, each arranged to connect a driven gearwheel for rotation with the respective secondary shaft, a corresponding plurality of sliding shift forks, each arranged to cause a respective engagement sleeve to slide between a neutral position and at least one shift position, a rotary drum having on its outer cylindrical surface a corresponding plurality of guide grooves in each of which a respective stud slidably engages for translation with a respective shift fork in the sliding direction of this latter, and an actuation unit arranged to cause the drum to rotate stepwise among a plurality of angular positions each corresponding to predetermined positions of the engagement sleeves.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: February 11, 2014
    Assignee: C.R.F. Societa' Consortile per Azioni
    Inventors: Fabio Pesola, Gianluigi Pregnolato, Andrea Piazza, Marco Garabello, Valter Pastorello
  • Publication number: 20140033843
    Abstract: A transmission system for a vehicle, comprising an input shaft which can be connected to a drive source, and an output shaft which can be connected to a load comprises:—a clutch module which has an input that is connected to the input shaft and a first and a second output, as well as first clutch means which are located between the input and the first output and second clutch means which are located between the input and the second output, and gear stage means which are located between the input and the first or second output, as well as—a transmission module which has a first and a second input and an output that is connected to the output shaft, as well as a first sub-transmission which is located between the first input and the output, and a second sub-transmission which is located between the second input and the output,—where the first output of the clutch module is connected to a first input of the transmission module and the second input of the clutch module is connected to the second input of the tran
    Type: Application
    Filed: December 20, 2011
    Publication date: February 6, 2014
    Applicant: DTI GROUP B.V.
    Inventors: Roell Marie Van Druten, Alexander Franciscus Anita Serrarens, Bas Gerard Vroemen
  • Patent number: 8635923
    Abstract: A vehicle drive system includes an input shaft to which a driving force of a first driving source is inputted, a first shaft idly rotating relative to the input shaft and being connectable with the input shaft, the first shaft being provided with a plurality of drive gears, a single drive gear idly rotating relative to the input shaft and being connectable with the input shaft, a second shaft arranged parallel to the input shaft and being provided with a first idler gear and a second idler gear, an output shaft arranged parallel to the input shaft and outputting the driving force to a wheel, and a plurality of driven gears idly rotating relative to the output shaft and being connectable with the output shaft, the plurality of driven gears engaging with the plurality of drive gears, respectively.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: January 28, 2014
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Takahiro Misu, Kyosuke Mori, Wataru Hagimoto
  • Publication number: 20140013880
    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: Application
    Filed: July 1, 2013
    Publication date: January 16, 2014
    Inventor: Christian NIKOLAIZIG
  • Patent number: 8627735
    Abstract: A transmission shift device is provided that includes, but is not limited to a shifting shaft, which is mounted so it is axially immovable and rotatable in a transmission shift housing and is mechanically connected to a shift lever. Furthermore, the transmission shift device includes, but is not limited to a selector lever, which is mounted so it is axially displaceable on the shifting shaft and is mechanically connected to a selector lever. The selector lever is held in a spring-elastic manner in a middle axial selection position on the shifting shaft by at least one spring element.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 14, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Axel Geiberger, Thorsten Hahn
  • Patent number: 8627736
    Abstract: A variable speed transmission for motor vehicles includes multiple drive gears which are switchable by means of at least one gear changing device, in particular by means of synchronous shifting clutches, in particular multiple forward gears and a reverse gear. The variable speed transmission is subdivided or divided into at least two part-transmissions each with multiple gears, by at least one shifting device in particular least one shifting clutch in such a manner that at least one of the part-transmissions is engaged and at least one of the part-transmissions is disengaged as a function of one of the drive gears as selected by the gear changing device and/or as a function of defined shifting states of the shifting device.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: January 14, 2014
    Assignee: Audi AG
    Inventor: Johann Maerkl
  • Publication number: 20140011634
    Abstract: An automated manual transmission for a vehicle may include a shifting section provided with a plurality of shifting units for implementing different gear ratio between an input shaft and an output shaft, and a variable power transfer unit transferring continuously and variably power of a power providing device to the shifting section in series by self-controllable slip operation, wherein the variable power transfer unit may be disposed between the power providing device and the shifting section.
    Type: Application
    Filed: January 9, 2013
    Publication date: January 9, 2014
    Applicant: Hyundai Motor Company
    Inventors: Soon Ki EO, Dong Soo Lee
  • Patent number: 8624172
    Abstract: A shift lock assembly includes a drive member carried by a drive shaft and configured to rotatably couple to a drive motor and a shift mechanism disposed between the drive member and a ground plate, the shift mechanism configured to move between a first position and a second position relative to the drive member and the ground plate. When disposed in the first position, the shift mechanism is configured to couple the drive shaft to the ground plate and decouple the drive shaft from the drive member to allow rotation of the drive member relative to the drive shaft. When disposed in the second position, the shift mechanism is configured to couple the drive shaft to the drive member and decouple the drive shaft from the ground plate to allow rotation of the drive shaft in response to rotation of the drive member.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: January 7, 2014
    Assignee: Woodward HRT, Inc.
    Inventor: Grant Sweer
  • Publication number: 20130327169
    Abstract: In a motor vehicle drive train device with a transmission output shaft, a main drive train driven by the transmission output shaft, which has an axle drive for driving a main drive axle, an auxiliary drive train driven by the transmission output shaft, which has an axle drive for driving an auxiliary drive axle, a clutch unit for the switchable connection of the axle drive to the transmission output shaft, the axle drive of the main drive train and the axle drive of the auxiliary drive train have different transmission ratios and a transmission gearing for adapting a drive transmission ratio of the auxiliary drive train to a drive transmission ratio of the main drive train is provided.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 12, 2013
    Applicant: DAIMLER AG
    Inventor: Christian Krajewski
  • Publication number: 20130319175
    Abstract: Transmission group for vehicles comprising an engine provided with at least one engaging device, arranged between transmission gears and mobile between a first rest position, wherein the transmission gears are mutually integral and both in mesh with a transmission shaft, and a second working position wherein the first gear is in mesh with the transmission shaft and the second gear is unconstrained both with respect to the transmission shaft and with respect to the gear, provided for being means for actuating of the engage device, wherein the engine, the output gear and an output shaft are integrated in a first module fixed to the vehicle and that the transmission shaft, the transmission gears, the engage device and the actuating means thereof are integrated in a second module independent and demountable with respect to the first module.
    Type: Application
    Filed: November 23, 2011
    Publication date: December 5, 2013
    Applicant: Dana Italia S.P.A.
    Inventors: Marco Pontanari, Pietro Casarola
  • Publication number: 20130319149
    Abstract: Two-gear transmissions for electric machines, such as electric vehicles, are provided.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventors: Stefano Bertolotto, Giorgio Scalici