Plural Planetary Units Combined With Differential Patents (Class 475/205)
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Patent number: 11855573Abstract: An efficient, large dynamic range electric motor system and method of operating same, including a frame, at least a first rotor-stator pair, together having a first dynamic range, and a second rotor-stator pair, having a second dynamic range, with the first and second pairs mounted within the frame for rotation about a common central axis of an output shaft, mounted for rotation about the first axis and configured to transfer torque from the first and second pairs. A clutch is configured to isolate at least one of the first and second pairs away from the output shaft, thereby establishing an at least one isolated pair, and preventing torque transfer between the at least one isolated pair and the output shaft. A controller is connected to the first and second pairs and is configured to control power delivery to the first and second pairs.Type: GrantFiled: October 7, 2019Date of Patent: December 26, 2023Assignee: WOODS HOLE OCEANOGRAPHIC INSTITUTIONInventor: Andrew S. Billings
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Patent number: 11754159Abstract: An axle center transmission for transmitting a driving torque received from a drive device to two half shafts of an axle comprises a transmission gearing for transmitting a driving torque received at an input element and having at least two selectively switchable gear transmission ratios and a differential for distributing the transmitted driving torque to two output elements. The transmission gearing has a first gear formed as a planetary transmission having a first sun gear, a first planet carrier having planet gears, and a first annulus gear. The transmission gearing furthermore has a second gear formed as a planetary transmission having a second sun gear, a second planet carrier having planet gears, and a second annulus gear. The first sun gear forms said input element; the first planet carrier is stationary; and the second sun gear is couplable or coupled to the first annulus gear for a common rotation.Type: GrantFiled: October 25, 2021Date of Patent: September 12, 2023Assignee: KESSLER & CO. GMBH & CO. KGInventor: Thomas Bauer
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Patent number: 11739822Abstract: A transmission with a differential locking unit which comprises an input shaft (10), first and second output shafts (11, 12), and first and second planetary gear sets (P1, P2). Torque introduced, via the input shaft (10), is converted and distributed to the two output shafts (11, 12) in a defined ratio, and development of a sum torque is prevented. The differential locking unit comprises an epicyclic gearing (P3) as well as a switching element (B 1). The epicyclic gearing (P3) has at least three connection shafts (3), a first connection shaft (WI) is rotationally fixed to a linking shaft (3), a second connection shaft (W2) is rotationally fixed to the second element (E21) of the first planetary gear set (PI), which is rotationally fixed to the first output shaft (11). A third connection shaft (W3) can be secured to a rotationally fixed component (GG) by the switching element (B 1).Type: GrantFiled: March 5, 2020Date of Patent: August 29, 2023Assignee: ZF Friedrichshafen AGInventors: Stefan Beck, Matthias Reisch
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Patent number: 11235662Abstract: A gearbox having a power take-off for an electrically propelled vehicle. The gearbox includes a housing; at least one planetary gear set; an input shaft in continuous connection with at least one sun gear; a first output shaft in continuous connection with a carrier; a second output shaft in continuous connection with a ring gear; and a plurality of brake clutches grounded to the housing and are selectively engageable in combinations to transfer a torque from the input shaft to at least one of the first output shaft and the second output shaft.Type: GrantFiled: November 2, 2020Date of Patent: February 1, 2022Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Neeraj S. Shidore, Madhusudan Raghavan
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Patent number: 11130401Abstract: A wheel hub for tandem axles including a housing, a reduction system, sun gears, planetary gears and a connection sleeve. The housing contains the reduction system, which is formed by the conical sun gears and the conical planetary gears that are accommodated in a supporting structure. The sun gears are mounted in a yoke that is attached to the supporting structure. The conical planetary gears are attached, respectively, to a differential housing in a fixed way and to an end of a semi-draft having free rotation. The connection sleeve is mounted in the end of the semi-draft having concentric mobility in relation to the conical planetary gear through an actuator system placed in an end of the supporting structure. The connection sleeve is formed by a body having a surface with double connection toothing disclosing a toothing of the yoke, and the toothing of the conical planetary gear.Type: GrantFiled: December 12, 2017Date of Patent: September 28, 2021Assignee: IVECO S.P.A.Inventors: José Francivaldo Pereira De Lemos, Fabio Nicora
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Patent number: 11111996Abstract: Disclosed herein are systems, gearing assemblies and methods for controlling a differential rotation rate between shafts of a vehicle using a variable speed motor. An embodiment includes a gearing assembly including a differential configured to engage a first axle shaft, a second axle shaft, and a drive shaft of a vehicle. The gearing assembly further includes a first plurality of adjustment gears and a second plurality of adjustment gears configured to engage the differential, configured to be driven by a variable speed reversible motor of the vehicle, and configured to controllably alter a rotation rate of a first axle shaft relative to a rotation rate of the second axle shaft based on rotation produced by the variable speed reversible motor. The first plurality of adjustment gears and the second plurality of adjustment gears each including stepped planetary gears.Type: GrantFiled: March 6, 2020Date of Patent: September 7, 2021Inventor: Shaun Chu
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Patent number: 11111995Abstract: A drive unit for a hybrid motor vehicle has an input shaft connectable to an internal combustion engine, a first output shaft connectable to a first wheel, a second output shaft connectable to a second wheel, and a distribution unit. The distribution unit is configured to generate different torques at the first and the second output shafts, the distribution unit acting between the input shaft and the output shafts. The distribution unit has a transmission device and first and second generators that are configured to be controlled independently of one another for torque distribution. The first generator is operatively connected to the first output shaft and the second generator is operatively connected to the second output shaft.Type: GrantFiled: December 5, 2019Date of Patent: September 7, 2021Assignee: Schaeffler Technologies AG & Co. KGInventor: Martin Vornehm
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Patent number: 11002340Abstract: An automatic transmission includes a main transmission and an auxiliary transmission. The auxiliary transmission includes an auxiliary-transmission-side planetary gear mechanism, a first clutch, and a second clutch. The auxiliary-transmission-side planetary gear mechanism is provided between a pair of main-transmission-side planetary gear mechanisms, and a part of the auxiliary-transmission-side planetary gear mechanism is located within the main transmission. The first clutch fixes rotation of a sun gear of the auxiliary-transmission-side planetary gear mechanism. The second clutch connects a ring gear of the auxiliary-transmission-side planetary gear mechanism with the sun gear.Type: GrantFiled: July 13, 2018Date of Patent: May 11, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hironori Asaoka, Atsushi Honda, Motoki Tabuchi, Daisuke Okamoto, Naoyuki Kishimoto, Tomoe Osada
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Patent number: 11002350Abstract: An axle assembly may have at least one electric motor/generator. The motor/generator may be connected to a first sun gear. A first gear of a first planet carrier may be meshed with the first sun gear. A first ring gear may be meshed with a second gear of the first planet carrier. A second ring gear, a second sun gear and a second planet carrier may be provided. A selector sleeve may selectively connect a selector spline connected to the first ring gear and a ground for a low output speed, the selector sleeve may selectively connect the first and second ring gears with the first planet carrier for a high output speed and selector sleeve selectively connect to only the first ring gear for neutral.Type: GrantFiled: June 1, 2018Date of Patent: May 11, 2021Assignee: DANA HEAVY VEHICLE SYSTEMS GROUP, LLCInventor: William F. Waltz
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Patent number: 10982745Abstract: A differential drive system includes an electric motor for generating an electric motor torque and an input planetary gear-set operatively connected to the electric motor to receive the electric motor torque. The input planetary gear-set has first, second, and third members. The first member receives the electric motor torque, the second member provides a first input torque in a first rotational direction in response to the electric motor torque, and the third member provides a second input torque in a second rotational direction, opposite the first direction, in response to the electric motor torque. The system also includes a first output gear-set operatively connected to the input planetary gear-set, and providing a first output torque in response to the first input torque. The system additionally includes a second output gear-set operatively connected to the input planetary gear-set and providing a second output torque in response to the second input torque.Type: GrantFiled: January 15, 2019Date of Patent: April 20, 2021Assignee: GM Global Technology Operations LLCInventors: Alan G. Holmes, Joseph R. Littlefield, Brendan M. Conlon
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Patent number: 10874562Abstract: A mobile device includes a body, a motor, a transmission assembly and two driven components. The motor and the transmission assembly are disposed at the body. The transmission assembly includes a differential, two shafts and two stoppers. The differential is coupled to the motor. The two shafts are respectively coupled to the two opposite sides of the differential. The two stoppers are respectively disposed corresponding to the two shafts. The two driven components are respectively connected to the two shafts. When one of the two shafts is locked by the corresponding stopper, the motor may still drive the other shaft and the driven component connected thereto to rotate relative to the body through the differential. A transmission assembly is also provided.Type: GrantFiled: May 28, 2018Date of Patent: December 29, 2020Assignee: Wistron CorporationInventors: Chen-Yi Liang, Ming-Ju Hsieh
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Patent number: 10571349Abstract: A power measurement assembly mounted within an axle. In a specific example, the axle is a spindle that is interconnects the cranks of a bicycle, exercise, bicycle, or other fitness equipment. The power measurement assembly may include strain gauges connected with an appropriate circuit (e.g., Wheatstone bridge) that provides an output of the force on the axle by a rider pedaling the crank. In the case of an axle, the strain gauges measure the torsion due to the applied torque on the crank. The value is converted to a power value by a processor and that value is then wirelessly transmitted for display. The processor and/or the transmitter may be mounted within the axle. A separate power measurement assembly may be mounted on one of the cranks, which may include its own processor and transmitter or may take advantage of the processor and transmitter within the axle.Type: GrantFiled: March 19, 2018Date of Patent: February 25, 2020Assignee: Foundation Fitness, LLCInventors: Andrew P. Lull, Patrick A. Warner
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Patent number: 10520071Abstract: A drive unit utilizing a double planetary differential and an overdriven gear to shift torque between output shafts. The drive unit includes a motor, a differential caging housing a planetary differential and in driving engagement with two output shafts, a planetary carrier, a first gear, a second gear, and two variably engageable clutches. The planetary carrier supports the planetary differential and is drivingly engaged with a first output shaft. The first gear is capable of being overdriven and is in driving engagement with the motor and the variably engaged clutches. The second gear is in driving engagement with the motor and the differential caging. The first clutch is disposed between the first gear and the second output shaft and the second clutch is disposed between the first gear and the planetary carrier. When the clutches are actuated, torque is shifted between the output shafts via the first gear.Type: GrantFiled: September 21, 2018Date of Patent: December 31, 2019Assignee: Dana Automotive Systems Group, LLCInventor: Kenneth E. Cooper
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Patent number: 10514087Abstract: A driving system includes a drive source for driving a left drive portion and a right drive portion, a power transmission mechanism having first and second differential mechanisms each including a first rotating element, a second rotating element and a third rotating element and a switching unit. The first rotating elements of the first and second differential mechanisms are connected to each other so as to rotate in the same direction, the second rotating elements of the first and second differential elements are connected to the left drive portion and the right drive portion, respectively, and the third rotating elements of the first and second differential mechanisms are connected to each other so as to rotate in opposite directions.Type: GrantFiled: September 18, 2018Date of Patent: December 24, 2019Assignee: HONDA MOTOR CO., LTD.Inventors: Shigeru Nakayama, Kenji Honda
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Patent number: 10408317Abstract: A geared transmission unit in which a range of a speed ratio is widened without increasing a size of the transmission unit. The geared transmission unit comprises: a first sun gear fixed to a stationary member; a second sun gear arranged coaxially with the first sun gear while being connected to the second shaft; a first pinion gear meshing with the first sun gear; a second pinion gear meshing with the first pinion gear; a third pinion gear rotated integrally with the second pinion gear; a fourth pinion gear meshing with the third pinion gear; a fifth pinion gear rotated integrally with the fourth pinion gear; and a carrier coupled to the first shaft while rotatably supporting the pinion gears.Type: GrantFiled: April 27, 2018Date of Patent: September 10, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hiroshi Isono
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Patent number: 10399635Abstract: A bicycle transmission device basically includes an input rotational shaft, an output part, a transmission mechanism that accelerates a rotational input that is input from the input rotational shaft and outputted to the output part, and a switching mechanism that selectively engages and disengages the transmission mechanism between the input rotational shaft and the output part. The transmission mechanism has first, second, third and fourth rotating bodies. The first rotating body is rotatable with the input rotational shaft. The second rotating body rotates around a stationary center axis with respect to the input rotational shaft and to which the torque of the first rotating body is transmitted. The third rotating body rotates with the second rotating body. The fourth rotating body receives torque from the third rotating body and rotates with the output part.Type: GrantFiled: February 23, 2016Date of Patent: September 3, 2019Assignee: Shimano Inc.Inventor: Takashi Yamamoto
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Patent number: 10378616Abstract: A transmission (G) for a motor vehicle includes an in-order-of-rotation-speed fourth shaft (W4) permanently connected to a transmission output (GW2-A), an in-order-of-rotation-speed first shaft (W1) either fixable by engaging a first shift element (B1) or connectable in a rotationally fixed manner with a transmission input (GW1-A) by actuating a second shift element (K1), an in-order-of-rotation-speed second shaft (W2) connectable in a rotationally fixed manner with the transmission input (GW1-A) by actuating a third shift element (K2), an in-order-of-rotation-speed third shaft (W3) is connectable in a rotationally fixed manner with the transmission input (GW1-A) by actuating a fourth shift element (K3), and an in-order-of-rotation-speed fifth shaft (W5) fixable by engaging a fifth shift element (B2).Type: GrantFiled: October 17, 2017Date of Patent: August 13, 2019Assignee: ZF FRIEDRICHSHAFEN AGInventors: Viktor Warth, Michael Wechs, Stefan Beck
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Patent number: 10288151Abstract: A multi-stage transmission is disclosed. The multi-stage transmission includes: two simple planetary gear sets, each including three rotary elements; one compound planetary gear set including four rotary elements; and six shifting elements. Since ten forward shifting stages and one reverse shifting stage can be accomplished with a relatively small number of parts, a simple construction and a low weight, the multi-stage transmission provides a further improved speed ratio for the driving conditions of the vehicle, thereby improving the fuel efficiency of the vehicle.Type: GrantFiled: November 9, 2017Date of Patent: May 14, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Hyun Sik Kwon, Seong Wook Hwang, Ki Tae Kim, Won Min Cho, Jae Chang Kook, Seong Wook Ji
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Patent number: 10250101Abstract: A balanced planetary gearbox including an assembly having an input stage and an output stage. The assembly includes two grounds, each with ground rollers and ground rings. The two grounds are fixedly attached to one another. The assembly includes a sun gear and planet sub-assemblies between the two grounds. The planet sub-assemblies include at least one input planet gear and one output planet gear. The sun gear and the input planet gears include rollers. An abutment of rollers in the gearbox keeps the sun gear and the planet gears in alignment. The output gear meshes with an output ring disposed in between the two ground rings, such that a combination of the at least one input planet gears from each of the plurality of planet sub-assemblies provides a structural symmetry to the planetary gearbox.Type: GrantFiled: June 8, 2015Date of Patent: April 2, 2019Assignee: Northeastern UniversityInventors: Elias Brassitos, Brian Weinberg, Qingchao Kong, Constantinos Mavroidis
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Patent number: 10113613Abstract: A power transmission member is disclosed. The power transmission member allows a planetary gear mechanism to be reduced in volume while sufficient strength is guaranteed. A planetary gear holding part, a rotating shaft part, and a sun gear holding part constituting a power transmission member are formed integrally. The rotating shaft part is substantially cylindrical, and a planetary gear can be passed through the interior of the rotating shaft part and turnably mounted on the planetary gear holding part. An open window is formed in the planetary gear holding part, and a toothed part of the planetary gear is configured to mesh with a bearing-equipped outer gear through the open window.Type: GrantFiled: September 10, 2014Date of Patent: October 30, 2018Inventors: Hidekazu Atari, Manabu Shiraki
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Patent number: 9895970Abstract: A vehicle drive system capable of selectively providing all-wheel drive and single-driven-axle modes includes a front drive unit having a planetary gearset with a grounded ring gear and a sun gear driven by the transaxle's drive spool via an input shaft, and a differential selectively coupled by a dog clutch to one of the sun gear or the planetary carrier, or neither of them, to thereby selectively provide both an available low range and a front axle disconnect. The front drive unit further defines a power take-off unit with a clutch selectively coupling the input shaft to a propshaft. The rear drive unit includes a planetary gearset with a grounded ring gear, a sun gear driven by the propshaft, and a differential selectively coupled by a dog clutch to one of the sun gear or the planetary carrier, or neither of them, to thereby likewise selectively provide both an available low range and a rear axle disconnect.Type: GrantFiled: March 30, 2015Date of Patent: February 20, 2018Assignee: FCA US LLCInventors: Richard G Reed, Jr., Joseph E Kubina, Michael P Kirk, Donald F Schmanski, Kenneth M Pachucki, Mircea Gradu
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Patent number: 9731598Abstract: A vehicle drive system capable of selectively providing all-wheel drive and single-driven-axle modes includes a front drive unit having a planetary gearset with a grounded ring gear and a sun gear driven by the transaxle's drive spool via an input shaft, and a differential selectively coupled by a dog clutch to one of the sun gear or the planetary carrier, or neither of them, to thereby selectively provide both an available low range and a front axle disconnect. The front drive unit further defines a power take-off unit with a clutch selectively coupling the input shaft to a propshaft. The rear drive unit includes a planetary gearset with a grounded ring gear, a sun gear driven by the propshaft, and a differential selectively coupled by a dog clutch to one of the sun gear or the planetary carrier, or neither of them, to thereby likewise selectively provide both an available low range and a rear axle disconnect.Type: GrantFiled: July 25, 2011Date of Patent: August 15, 2017Assignee: FCA US LLCInventors: Richard G. Reed, Joseph E. Kubina, Michael P. Kirk, Donald F. Schmanski, Kenneth M. Pachucki, Mircea Gradu
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Patent number: 9618088Abstract: A multi-speed transmission in planetary design for a vehicle with a housing includes a first shaft provided as a drive and a second shaft provided as an output that is arranged axially parallel to the drive. Three planetary gear sets and additional shafts along with six shifting elements are provided, through which the actuation of several gears are realized. Machine elements are provided for the transfer of torque between the drive and the output. The first shaft is connectable, as a drive, to the sun gear of the third planetary gear set, to the planetary gear carrier of the second planetary gear set, to the planetary gear carrier of the third planetary gear set, and is connectable or connected to the sun gear of the first planetary gear set. The second shaft is connected or connectable, as a drive, to the first machine element and to the second machine element.Type: GrantFiled: January 22, 2014Date of Patent: April 11, 2017Assignee: ZF Friedrichshafen AGInventors: Stefan Beck, Christian Sibla, Wolfgang Rieger
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Patent number: 9541171Abstract: An automatic transmission for a vehicle includes: the input shaft being constantly connected to the second element, arranged to be connected to the second sun gear by an engagement of the first clutch, and arranged to be engaged with the third sun gear by an engagement of the second clutch, the output member being constantly connected to the second ring gear, the first element being arranged to be fixed to the stationary portion by an engagement of the first brake, the third element being constantly connected to the second pinion carrier, and arranged to fixed to the stationary portion by an engagement of the second brake, and the third sun gear being arrange to be fixed to the stationary portion by an engagement of the third brake.Type: GrantFiled: January 7, 2014Date of Patent: January 10, 2017Assignee: JATCO LTDInventors: Kenichi Watanabe, Shoji Sugaya, Kazuo Oguri, Masao Arimatsu, Jun Shinozaki, Yoshiaki Hatano
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Patent number: 9382976Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving a torque of an engine, an output shaft disposed substantially in parallel with the input shaft at a predetermined distance and outputting a changed torque, a first planetary gear set disposed on the input shaft and including a first, second and third rotation elements, a second planetary gear set disposed on the output shaft and including a fourth, fifth and sixth rotation elements, four transfer gears forming the externally-meshed gears, and frictional elements including clutches connecting the input shaft and the rotation elements of the first and second planetary gear sets and brakes connecting the rotation elements of the first and second planetary gear sets and a transmission housing.Type: GrantFiled: August 1, 2013Date of Patent: July 5, 2016Assignee: Hyundai Motor CompanyInventors: Chang Wook Lee, Kangsoo Seo, Myonghoon Noh, Jae Chang Kook, Hyukjun Lee, Jongsool Park
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Patent number: 9347538Abstract: A multi-mode continuously variable transmission in a powertrain of a motor vehicle includes a continuously variable unit connected to a planetary gear set arrangement. The planetary gear set arrangement generally includes two planetary gear sets, two brakes, and one clutch and provides multiple modes of ratio selection between the continuously variable unit and a transmission output member. The transmission output member is connected to a chain driven final having only three axes of rotation.Type: GrantFiled: October 20, 2015Date of Patent: May 24, 2016Assignee: GM Global Technology Operations, LLCInventors: Edward W. Mellet, James M. Hart, Daryl A. Wilton, Clinton E. Carey
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Patent number: 9347539Abstract: A multi-mode continuously variable transmission in a powertrain of a motor vehicle includes a continuously variable unit connected to a planetary gear set arrangement. The planetary gear set arrangement generally includes two planetary gear sets, two brakes, and one clutch and provides multiple modes of ratio selection between the continuously variable unit and a transmission output member. The transmission output member is connected to a chain driven final having only three axes of rotation.Type: GrantFiled: November 18, 2015Date of Patent: May 24, 2016Assignee: GM Global Technology Operations, LLCInventors: Edward W. Mellet, James M. Hart, Daryl A. Wilton, Clinton E. Carey
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Patent number: 9328803Abstract: A planetary gear train of an automatic transmission may include: an input shaft; an output shaft parallel with the input shaft; a first planetary gear set on the input shaft including a first, second and third rotation elements, the first selectively connected to the input shaft, and the third selectively connected to the input shaft; a second planetary gear set on the output shaft including a fourth, fifth and sixth rotation elements, the first selectively connected to the input shaft through two gear ratio paths and selectively connected to a transmission housing, the fifth selectively connected to the input shaft and the transmission housing, and the sixth connected to the second rotation element and directly connected to the output shaft; four transfer gears; and frictional elements including clutches and brakes.Type: GrantFiled: August 1, 2013Date of Patent: May 3, 2016Assignee: HYUNDAI MOTOR COMPANYInventors: Chang Wook Lee, Kangsoo Seo, Myonghoon Noh, Jae Chang Kook, Hyukjun Lee, Jongsool Park
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Patent number: 9109665Abstract: A power shift transmission has an input shaft, a first output shaft coaxial to the input shaft, a planetary transmission with a planet carrier, which is connected to the input shaft, and at least three shift elements. To minimize drag from open shift elements and to optimize shift times of a connectable synchromesh transmission, the planetary transmission has at least two stepped planetary sets, which may be mounted on a common planet carrier. Each stepped planetary set meshes on input and output sides with at least one sun gear. The first output shaft is connected to an output side sun associated with one stepped planetary set by a first shift element, the first output shaft is connected to an output side sun associated with another stepped planetary set by a second shift element, and input side sun gears are blocked relative to the transmission housing by a third shift element.Type: GrantFiled: October 17, 2012Date of Patent: August 18, 2015Assignee: Deere & CompanyInventors: Ulrich Otten, Martin Schaller
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Patent number: 9097319Abstract: An automated manual transmission for a vehicle may include an input shaft configured to receive rotating force from a power source, an output shaft disposed parallel to the input shaft so that power is output from the output shaft, and a plurality of shift gear trains each comprising external gears respectively provided on the input shaft and the output shaft in such a way that the external gears circumscribe each other, the external gears forming a pair that embodies one of a series of shift ratios. Among the external gears that form a shift gear train in the plurality of the shift gear trains that embodies at least two adjacent shift ratios, either of two external gears that forms each of the shift gear trains may be connected to the input shaft or the output shaft by a planetary gear device.Type: GrantFiled: September 18, 2013Date of Patent: August 4, 2015Assignee: HYUNDAI MOTOR COMPANYInventors: Soon Ki Eo, Jong Yun Park
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Patent number: 9097321Abstract: A vehicular planetary gear train may include: a first input shaft; a second parallel shaft; a first planetary gear set including a first element selectively connected to the first shaft, a second element selectively connected to the first shaft and/or a transmission housing, and a third output element; a second planetary gear set including a fourth element connected to the second element, a fifth element connected to the third element and directly connected to an output gear, and a sixth element selectively connected to the first shaft through two paths; four transfer gears connecting the fourth and fifth elements respectively to the second and third elements, and connecting the sixth element to the first shaft through two paths; and frictional elements selectively connecting the first, second, and sixth elements to the first shaft, and a brake selectively connecting the second element to the transmission housing.Type: GrantFiled: October 17, 2013Date of Patent: August 4, 2015Assignee: HYUNDAI MOTOR COMPANYInventors: Chang Wook Lee, Kangsoo Seo, Jae Chang Kook, Jongsool Park, Myonghoon Noh
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Patent number: 9039559Abstract: An electric drive for a motor vehicle comprising an electric motor and a drive unit is disclosed. The drive unit has a first gear stage, driveable by the electric motor, a second gear stage, driveable by the first gear stage, and a differential drive, driveable by the second gear stage. The first gear stage has a driving wheel and an output wheel, wherein the driving wheel is arranged coaxially to the output shaft of the electric motor and is rotatingly driveable by the electric motor around a first rotational axis A. The output wheel is drivingly connected to the driving wheel and is rotatingly driveable around a second rotational axis B, wherein the second rotational axis B is arranged parallel off-set to the first rotational axis A. The second gear stage and the differential drive are arranged coaxially to the second rotational axis B.Type: GrantFiled: July 13, 2010Date of Patent: May 26, 2015Assignee: GKN Driveline International GmbHInventor: Theodor Gassmann
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Patent number: 8998765Abstract: An axle assembly with a motor, a differential assembly, a housing, a transmission and a reduction gearset. The transmission has a first and second planetary gearsets that have associated (i.e., first and second) ring gears, planet carriers and sun gears. The first planet carrier is coupled to a differential carrier of the differential assembly for common rotation. The second ring gear is non-rotatably coupled to the housing. The second planet carrier is coupled to the second differential output for common rotation. The second sun gear is coupled to the first sun gear for common rotation. The reduction gearset is disposed between an output shaft of the motor and the first ring gear and includes a first gear, which is coupled to the output shaft for rotation therewith, and a second gear that is coupled to the first ring gear for rotation therewith.Type: GrantFiled: March 15, 2013Date of Patent: April 7, 2015Assignee: e-AAM Driveline Systems ABInventor: Erik J. Sten
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Patent number: 8998764Abstract: A drive module with a planetary transmission that includes a transmission housing, a first ring gear and a second ring gear. The first ring gear is rotatably mounted in the transmission housing, the second ring gear is non-rotatably mounted in the transmission housing, and the first ring gear is supported on the second ring gear to thereby align a central axis of the first ring gear to a central axis of the second ring gear.Type: GrantFiled: March 13, 2013Date of Patent: April 7, 2015Assignee: e-AAM Driveline Systems ABInventors: Erik J. Sten, Thomas C. Bengtsson
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Publication number: 20150087459Abstract: A speed-changing and differential transmission includes a speed-changing section and a differential section. The speed-changing section has an input stage and a load stage. The sun wheel of the load stage can be operatively connected to at least one planet wheel of the input stage via a planet carrier. At least one planet wheel of the load stage can be operatively connected to the annulus of the input stage via a planet carrier. One of these operative connections is configured as a selectable connection and the other is configured as a fixed connection such that through use of a coupling device, the annulus of the input stage can be operatively coupled to the planet carrier of the load stage, or the sun wheel of the load stage can be operatively coupled to the planet carrier of the input stage.Type: ApplicationFiled: December 2, 2014Publication date: March 26, 2015Inventors: Rainer Petersen, Jörg Möckel, Andreas Lutz, Stefan Hanke
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Publication number: 20140364264Abstract: An axle assembly with a differential assembly, a housing and a transmission. The transmission has a first and second planetary gearsets that have associated (i.e., first and second) ring gears, planet carriers and sun gears. The first planet carrier is coupled to a differential carrier of the differential assembly for common rotation. The second ring gear is non-rotatably coupled to the housing. The second planet carrier is coupled to the second differential output for common rotation. The second sun gear is coupled to the first sun gear for common rotation.Type: ApplicationFiled: August 27, 2014Publication date: December 11, 2014Inventor: Erik J. Sten
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Publication number: 20140302959Abstract: A transmission arrangement for use with a motor vehicle which has left and right hand transmissions 200L, 200R. A left hand variator 204L, 404L comprises a left hand input race 222L driveable from a transmission input 220, 520, 620 and a left hand output race 226L, 426L, 626L. A set of left hand variator rollers 224L is arranged to transmit drive between the left hand input race and the left hand output race. The left hand variator rollers are moveable to permit continuous change in the ratio of rotary speed of the left hand input to that of the left hand output race. A left hand epicyclic unit 210L has two left hand epicyclic inputs 226L, 234 driveable along with the left hand input race and the left hand output race. A left hand epicyclic out 234 drives a left hand transmission output 240L, 440L, 640L. A right hand transmission is formed in similar manner.Type: ApplicationFiled: February 27, 2012Publication date: October 9, 2014Applicant: TOROTRAK (DEVELOPMENT) LIMITEDInventor: Robert Andrew Oliver
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Publication number: 20140274539Abstract: An adaptive continuously variable transmission (CVT) constructed to automatically adjust gear ratio in response to changes in power to an input shaft, and to the load applied to the output shaft while still transmitting power to the output shaft. The transmission blends three compound planetary gear sets together so that the instantaneous difference in rotational speed between the input and output shafts sets the gear ratio and torque output of the transmission.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Inventor: ERIC ORTON
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Patent number: 8827857Abstract: A planetary gear-set for continuously varying the output ratio between torque and rotational velocity, in which a central static sun-gear is considered as a reference to all other components. The structural aspects include a set of segments of a ring gear each such segment includes a linked couple of cogwheels. Another set of couples of linked cogwheels, is a sun-gear follower and the coupled member is output transfer cogwheel. A mechanism for changing the orientation of the output transfer cogwheel with respect to the sun-gear follower. A transient link connects between the above two separate systems of sets.Type: GrantFiled: July 13, 2011Date of Patent: September 9, 2014Inventor: Giora Ledereich
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Patent number: 8702552Abstract: Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives first and second directional control assemblies to provide a vehicle with zero turn radius. A variable torque converter may be used in various embodiments to control torque from a minimum to a maximum by controlling movement of a rotor along a shaft in relation to a stator.Type: GrantFiled: June 12, 2013Date of Patent: April 22, 2014Assignee: Differential Dynamics CorporationInventor: Kyung Soo Han
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Patent number: 8663051Abstract: An axle assembly with an input member, a first planetary gear set, a differential assembly, and a second planetary gear set. The first planetary gear set has a first transmission input that is driven by the input member. The differential assembly has a differential carrier and first and second differential output members received in the differential carrier. The second planetary gear set has a planet carrier coupled to the differential carrier for common rotation. A sun gear of the first planetary gear set is non-rotatably coupled to a sun gear of the second planetary gear set.Type: GrantFiled: July 13, 2011Date of Patent: March 4, 2014Assignee: e-AAM Driveline Systems ABInventor: Erik Sten
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Patent number: 8651993Abstract: A bicycle drive unit is provided that includes a motor, a crank axle, a power transmission axle and an output part. The motor includes a crank axle receiving hole. The crank axle is rotatably disposed in the crank axle receiving hole of the motor. The power transmission axle is separate from the crank axle and arranged to transmit rotation of the crank axle. The output part is operatively coupled to the motor and the power transmission axle to combine a rotational output of the motor and a rotational output of the transmission mechanism together.Type: GrantFiled: December 18, 2012Date of Patent: February 18, 2014Assignee: Shimano Inc.Inventor: Etsuyoshi Watarai
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Publication number: 20130324346Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.Type: ApplicationFiled: May 9, 2013Publication date: December 5, 2013Applicant: GM Global Technology Operations LLCInventors: Pete R. Garcia, Tejinder Singh, John A. Diemer, Douglas John Dwenger
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Publication number: 20130267368Abstract: A transmission and differential gearing includes a transmission section and a differential section. The transmission section has an input stage and a load stage. The sun gear of the input stage is connected or coupleable to an input shaft. The ring gear of the bad stage is fixed relative to the housing. The sun gear of the bad stage is connected to the carrier of the input stage. The carrier of the load stage is connected to the ring gear of the input stage. The differential section is a spur gear differential configured as a planetary gear set. The ring gear of the planetary gear set is connected to the carrier of the load stage. The carrier of the planetary gear set and the sun gear of the planetary gear set are connected to a respective one of two output shafts. A motor and gearing unit is also provided.Type: ApplicationFiled: June 5, 2013Publication date: October 10, 2013Inventors: Rainer Petersen, Andreas Lutz, Jörg Möckel, Stefan Hanke
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Publication number: 20130260942Abstract: A transmission includes an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes that are actuated in various combinations to establish a plurality of forward gear ratios and a reverse gear ratio.Type: ApplicationFiled: February 1, 2013Publication date: October 3, 2013Applicant: GM Global Technology Operations LLCInventors: Pete R. Garcia, John A. Diemer, Tejinder Singh, Douglas John Dwenger
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Patent number: 8535189Abstract: A vehicle power transmission device includes: a power generation device that includes a rotating machine electrically controllable in torque; and a power distribution device including three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element, the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are arranged in this order from one end to the other end on a collinear diagram capable of representing the rotation speeds of the three rotating elements on a straight line, the operation state of the rotating machine being controlled to put the first output rotating element aType: GrantFiled: December 15, 2008Date of Patent: September 17, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takahiro Yoshimura
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Patent number: 8500584Abstract: A vehicle power transmission device includes: a power generation device that includes a rotating machine electrically controllable in torque; and a power distribution device including three rotating elements, which are an input rotating element, a first output rotating element operatively coupled to a first wheel, and a second output rotating element operatively coupled to a second wheel, the power distribution device distributing power input to the input rotating element from the power generation device to the first output rotating element and the second output rotating element, the power distribution device being configured such that the input rotating element, the first output rotating element, and the second output rotating element are arranged in this order from one end to the other end on a collinear diagram capable of representing the rotation speeds of the three rotating elements on a straight line, the operation state of the rotating machine being controlled to put the first output rotating element aType: GrantFiled: December 15, 2008Date of Patent: August 6, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takahiro Yoshimura
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Patent number: 8485933Abstract: Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an output and a control, a variable pitch cam having an eccentric inner and outer cam assembly and a driver may be used to form a speed converter. The speed converter is used in various forms to provide an infinitely variable transmission, a differential, embodiments of wind and river turbines and pumps/compressors. In one embodiment, the speed converter drives first and second directional control assemblies to provide a vehicle with zero turn radius. A variable torque converter may be used in various embodiments to control torque from a minimum to a maximum by controlling movement of a rotor along a shaft in relation to a stator.Type: GrantFiled: August 7, 2012Date of Patent: July 16, 2013Assignee: Differential Dynamics CorporationInventor: Kyung Soo Han
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Patent number: 8403796Abstract: A drive force adjustment apparatus includes a differential gear, a motor, a first gear mechanism and a second gear mechanism. The input element, the first output element, the second output element, the motor input element, the fixed element, and the connecting element are expressed as points I, R, L, M, F and C on a graph, an ordinate of which shows the number of revolutions and a abscissa of which shows relative ratios of the number of revolutions of the elements. In one example, length of L-I is equal to length of R-I, I is located between L and R on a straight line L-R, C is located between L and M on a straight line L-M, and C is located between F and I on a straight line F-I.Type: GrantFiled: March 11, 2010Date of Patent: March 26, 2013Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Tomo Kato, Kaoru Sawase, Yuichi Ushiroda
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Patent number: 8398523Abstract: A drivetrain for an all-wheel-drive vehicle which has a first driven axle and a second driven axle. A drive unit is connected to a multi-stage transmission which has a multiplicity of gear stages for generating different transmission ratios. A transmission output shaft of the multi-stage transmission is connected to the first driven axle. The drive unit is also connected to an activating arrangement, the output element of which is connected to the second driven axle. Thus drive power can be supplied to the first axle permanently via the multi-stage transmission and drive power can be supplied to the second axle on demand via the activating arrangement. The activating arrangement has a first activating friction clutch and a second activating friction clutch which are designed to supply drive power to the second axle via a first and a second transmission ratio stage, respectively. The first transmission ratio stage is assigned to at least one lower gear stage of the multi-stage transmission.Type: GrantFiled: June 4, 2009Date of Patent: March 19, 2013Assignee: GETRAG Driveline Systems GmbHInventors: Hans-Peter Nett, Bernd Oberhausen, Michael Hoeck, Jan Haupt