Patents Examined by Huan Le
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Patent number: 10808771Abstract: A power transmission device includes a selective rotation transmission mechanism for keeping the current drive mode of a vehicle. The selective rotation transmission mechanism includes a magnetized yoke, and a pressure receiving plate opposed to the yoke in the axial direction. In order to improve the stability of operation of the selective rotation transmission mechanism, the yoke and the pressure receiving plate are configured such that separated regions are defined between the yoke and the pressure receiving plate when the latter is attracted to the former such that at the separated regions, the yoke is not in contact with the pressure receiving plate.Type: GrantFiled: September 14, 2017Date of Patent: October 20, 2020Assignee: NTN CORPORATIONInventor: Koji Sato
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Patent number: 10808807Abstract: A multi-speed transmission including a plurality of planetary gearsets and a plurality of selective couplers to achieve at least nine forward speed ratios is disclosed. The plurality of planetary gearsets may include a first planetary gearset, a second planetary gearset, a third planetary gearset, and a fourth planetary gearset. The plurality of selective couplers may include a number of clutches and a number of brakes. The multi-speed transmission may have four planetary gearsets and six selective couplers. The six selective couplers may include four clutches and two brakes or three clutches and three brakes.Type: GrantFiled: September 3, 2019Date of Patent: October 20, 2020Assignee: Allison Transmission, Inc.Inventors: Brian Schoolcraft, David E. Earhart, Eric S. Tryon
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Patent number: 10801556Abstract: An axle assembly having a wheel end disconnect and a method of control. The axle assembly may include a friction clutch and a locking clutch that may be received in a hub assembly. The friction clutch may be moveable between an engaged position and a disengaged position. The locking clutch may be moveable between a locked position and an unlocked position and may actuate the friction clutch to the disengaged position.Type: GrantFiled: April 27, 2018Date of Patent: October 13, 2020Assignee: ArvinMeritor Technology, LLCInventors: Dale Eschenburg, Brian D. Hayes, Robert J. Martin, Christopher Keeney, Pedro Garcia, David G. Gonska, Jack R. McKenzie
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Patent number: 10794432Abstract: A wedge clutch includes an inner race and an outer race circumscribing the inner race. A wedge element is radially disposed between the inner and outer races and actuatable to couple and decouple the inner and outer races. An actuator is operably coupled with the wedge element and is configured to actuate the wedge element to decouple the inner and outer races.Type: GrantFiled: November 28, 2018Date of Patent: October 6, 2020Assignee: Schaeffler Technologies AG & CO. KGInventor: Brian Lee
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Patent number: 10793134Abstract: A system for a vehicle including a controller structured to communicate with a transmission and an engine of a vehicle, and additionally structured to: receive at least one of vehicle operation data, route data, or dynamic data during operation of the vehicle; determine that the vehicle is in a coasting state based on the at least one of the vehicle operation data, the route data, or the dynamic data; provide a command to at least one of the engine and the transmission to maintain the coasting state for the vehicle; and determine an end of the coasting state based on the at least one of the vehicle operation data, the route data, or the dynamic data.Type: GrantFiled: January 12, 2018Date of Patent: October 6, 2020Assignee: Cummins, Inc.Inventors: Vivek A. Sujan, Daniel R. Dempsey
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Patent number: 10774885Abstract: A clutch device transmits a torque between a rotatable drive-input element and a rotatable drive-output element. Upon demand, the elements are coupled in non-positively locking fashion by a clutch element. Each of the drive-input element and the drive-output element form one clutch surface. A clutch gap decreases in a radial direction relative to at least one axis of rotation of the elements. The clutch element can be placed into a first position and into a second position which differ with regard to the radial position within the clutch gap and thus with regard to the contact pressure between the clutch element and the clutch surfaces. The clutch device permits an axial arrangement of its components, namely, the drive-input element, the clutch elements and the drive-output element, that keeps the size of a clutch device small in a radial direction relative to the axes of rotation.Type: GrantFiled: December 8, 2016Date of Patent: September 15, 2020Assignee: Volkswagen AktiengesellschaftInventor: Volker Cornelius
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Patent number: 10774879Abstract: A clutch assembly for selectively rotationally coupling a prime mover to an output comprises an input member including an input clutch protrusion, an output member including an output clutch protrusion, and an intermediate member positioned between the input member and the output member. The intermediate member includes a first clutch member engaged with the input clutch protrusion and a second clutch member axially spaced from, but engagable with, the output clutch protrusion. The intermediate member is axially displaceable toward the output member to engage the second clutch member with the output clutch protrusion in response to rotation of the input member relative to the intermediate member.Type: GrantFiled: April 5, 2018Date of Patent: September 15, 2020Assignee: TTI (MACAO COMMERCIAL OFFSHORE) LIMITEDInventors: William E. Colber, Jr., Michael Feng
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Patent number: 10774911Abstract: To provide a variable axle driving device which can obtain a high deceleration ratio, and which can prevent noise from being easily generated. Provided is an axle driving device which includes a planet gear mechanism. The planet gear mechanism includes first planetary gears, second planetary gears, first stepped gears, and second stepped gears. A driving force is input into a larger gear of each first stepped gear. A smaller gear of each first stepped gear is meshed with a larger gear of each second stepped gear. A smaller gear of each second stepped gear is connected to a first internal gear via the first planetary gear. A larger gear of each second stepped gear is connected to a second internal gear via a second planetary gear.Type: GrantFiled: February 14, 2019Date of Patent: September 15, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Eriko Yamamoto, Takahiro Kasahara
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Patent number: 10767738Abstract: A drive device includes a speed modulation gearbox having a planetary gear mechanism and a casing, a main drive machine which is connected to an input shaft of the speed modulation gearbox, two auxiliary drives, each connected to the planetary gear mechanism via a drive connection. An output shaft of the speed modulation gearbox can be connected to a working machine. The planetary gear mechanism includes a ring gear, a sun gear, a planet carrier and several planet gears. For each auxiliary drive, an additional drive connection with a constant transmission ratio exists between the auxiliary drives and the input shaft or between the auxiliary drives and a driven shaft of the planetary gear mechanism. The additional drive connections can each be engaged or disengaged by a respective switching clutch, wherein the drive connections from the auxiliary drives to the speed modulation gearbox remain engaged in any case.Type: GrantFiled: July 14, 2017Date of Patent: September 8, 2020Assignee: Voith Patent GmbHInventors: Tobias Stolz, Stefan Steiner, Ralph Burkhardt
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Patent number: 10767706Abstract: A frictional engagement element includes: a first piston, a second piston, a first urging member for urging the first piston in a direction of releasing a friction plate, and a second urging member for urging the second piston in the direction of releasing the friction plate with an urging force larger than the urging force of the first urging member. One of the first and second pistons has a communicating hole for connecting an engaging hydraulic chamber with an opposite hydraulic chamber and the other of the first and second pistons has a valve part for closing the communicating hole. The difference in travel distance between the first and second pistons in motion due to the different urging forces of the first and second urging members causes the valve part to open the communicating hole.Type: GrantFiled: March 21, 2017Date of Patent: September 8, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Tomotaka Ishizaka, Tatsuhiko Iwasaki, Norio Iwashita, Tatsutoshi Mizobe, Kaori Sako, Tadashi Saito, Tomohiro Kubo, Manabu Sasahara, Yutaro Fukuda, Shinya Kamada
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Patent number: 10767743Abstract: A differential gearing for a motor vehicle, with a ring gear, which has an external toothing system and which can be driven by a pinion of the motor vehicle, and with a differential unit which can be driven by the ring gear for rotational speed compensation between wheels of the motor vehicle that can be driven by the pinion via the differential unit, wherein the differential unit has an internal gear which can be driven by the ring gear and has an internal toothing system, the wheels being drivable by way of said internal gear. In relation to a torque flow from the ring gear to the internal gear, a coupling device is arranged between the ring gear and the internal gear.Type: GrantFiled: February 23, 2017Date of Patent: September 8, 2020Assignee: AUDI AGInventors: René Kockisch, Nico Keller, Udo Pinschmidt, Steffen Hummel
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Patent number: 10760657Abstract: A gearbox includes a planetary gearset, an input shaft coupled to a sun gear of the planetary gearset, and an output shaft coupled to planet gears of the planetary gearset via a carrier. A constant torsion spring is coupled to a ring gear of the planetary gearset. The constant torsion spring is capable of preventing the ring gear from moving when a torque at the output shaft is below a threshold. The ring gear winds the constant torsion spring in response to the torque exceeding the threshold.Type: GrantFiled: October 3, 2017Date of Patent: September 1, 2020Assignee: Riekor CorporationInventors: Ryan Heiraas, Timothy A. Erhart, John Russell Kingery
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Patent number: 10760629Abstract: A clutch control device includes an engine, a gearbox, a clutch device configured to disconnect and connect power transmission between the engine and the gearbox, a clutch actuator configured to drive the clutch device and vary a clutch capacity, and an ECU configured to calculate a control target value of the clutch capacity, and the ECU determines whether an engine rotational number after downshifting by the gearbox enters a high rotation region and decreases the clutch capacity after downshifting when it is determined that the engine rotational number after downshifting enters the high rotation region.Type: GrantFiled: December 18, 2018Date of Patent: September 1, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Tatsuya Ryuzaki, Junya Ono, Takashi Ozeki
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Patent number: 10752077Abstract: A clutch apparatus for a stabilizer may include: an inner race fixed to a first transmission bar, with a first guide recess part formed in a longitudinal direction in an outer surface of the first transmission bar; a housing fixed to a second transmission bar and installed in a shape enclosing the outer surface of the inner race, with a second guide recess part formed in the housing at a position facing the first guide recess part; a ball disposed between the inner race and the housing and having opposite sides respectively inserted into and retained in the first guide recess part and the second guide recess part; and a driver disposed inside the housing and configured to move the ball along the first guide recess part and the second groove and control power transmission between the inner race and the housing.Type: GrantFiled: June 21, 2018Date of Patent: August 25, 2020Assignee: Hyundai Mobis Co., Ltd.Inventor: Jun Sung Park
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Patent number: 10738885Abstract: An actuator apparatus includes an oil passage body including an oil passage therein, an electric actuator, a movable unit moved at least in a first direction and a second direction by the electric actuator, and an auxiliary device including an actuating member moved by hydraulic pressure of oil in the oil passage. When the electric actuator moves the movable unit in the second direction, the auxiliary device applies, through the actuating member to the movable unit, a force pointing in a direction that moves the movable unit in the second direction.Type: GrantFiled: January 12, 2018Date of Patent: August 11, 2020Assignee: NIDEC TOSOK CORPORATIONInventors: Hiroshi Tatsuta, Kazumi Shinkai, Shun Kato, Shuichi Kinjo, Kohei Osuga
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Patent number: 10731757Abstract: The controller performs shift control of the transmission such that an actual pressure of a primary pressure becomes an indicating pressure. The controller includes a phase advance compensator which performs advance compensation of the indicating pressure, and a setting unit which sets an indicating pressure on which the advance compensation is performed by the phase advance compensator as the indicating pressure, in accordance with at least one of a rotation speed of a primary pulley, an input torque to a secondary pulley, a speed ratio, or a changing rate.Type: GrantFiled: February 27, 2017Date of Patent: August 4, 2020Assignee: JATCO LTDInventors: Takurou Kawasumi, Ken Okahara, Midori Yamaguchi, Masahiro Yamamoto, Hiroki Iwasa, Hiroki Kumashiro, Masayuki Shimizu, Ryuuichi Furukawa, Kenichi Mori, Kazutaka Adachi, Yutaka Kaneko, Hiroyuki Ashizawa
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Patent number: 10724617Abstract: A dual clutch transmission including two sub-transmissions, each having an input shaft arranged on an input axis, an intermediate shaft and an output shaft which is the drive output of both sub-transmissions. The intermediate shaft can be connected to the input and output shafts. The transmission also has wheel planes, shifting elements, two clutches and countershafts. A first countershaft can be connected to transmission elements of all the wheel planes on the countershaft axis and a second countershaft is connected to transmission elements of at least two wheel planes. The shifting elements include at least one single shifting element, but most of the shifting elements are double shifting elements. Two shifting elements are arranged on the input axis between two wheel planes, whose transmission elements are connected to the second countershaft. Opposite sides of the intermediate shaft are respectively connected to a range group and the output shaft.Type: GrantFiled: January 11, 2016Date of Patent: July 28, 2020Assignee: ZF FRIEDRICHSHAFN AGInventors: Stefan Blattner, Christian Mittelberger, Eckhardt Lübke
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Patent number: 10723215Abstract: A clutch device comprising a first and a second input side, a first and a second output side, wherein the first and second input sides and the first and second output sides are configured to rotate about a common rotation axis. The clutch device also includes a first clutch between the first input side and the first output side, a second clutch between the first input side and the second output side, wherein the first and second clutch are offset axially relative to one another, and a third clutch between the first input side and the second input side.Type: GrantFiled: August 10, 2016Date of Patent: July 28, 2020Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventor: Elmar Lorenz
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Patent number: 10718385Abstract: The invention relates to a gear shift device for a motor vehicle transmission, comprising a first and a second gearbox component which are rotatable relative to each other around a gearbox axis, a friction ring which is connected to the first gearbox component comprising a conical frictional surface, a plurality of first disks and a plurality of second disks. The first and second disks form a multi-disk clutch, the first disks being coupled to a synchronization element in a rotationally fixed manner, and the synchronization element comprising, axially adjoining the conical frictional surface of the friction ring, a conical mating surface for speed synchronization between the first gearbox component and the first disks. Further, the first disks are designed as a synchronization disk where the synchronization element is integrally formed thereon and/or one of the first disks is designed as a disk support coupling all first disks in the circumferential direction in a form-locking manner.Type: GrantFiled: July 28, 2017Date of Patent: July 21, 2020Assignee: HOERBIGER ANTRIEBSTECHNIK HOLDING GMBHInventors: Juergen Binder, Sami Oezkan, Peter Echtler, Andreas Dempfle, Philip Minkwitz, Christopher Traut, Tobias Schuler
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Patent number: 10711866Abstract: A two-speed transmission for a vehicle is provided including a planetary gear set selectively coupling an input shaft and an output shaft. The planetary gear set is configured to provide two forward gear ratios and neutral. The planetary gear set includes at least one sun gear, at least one pinion in meshing engagement with the sun gear, at least one ring gear meshingly engaged with the pinion, and a carrier. The carrier supports the pinion and is connected to the output shaft such that rotation of the carrier drives the output shaft. The two-speed transmission also includes one or more elements that rotatably couple different combinations of the sun gear, the pinion, the ring gear, the input shaft, and the carrier with one another or a ground. Such elements may include combinations of clutches, brakes, and dog clutches.Type: GrantFiled: December 11, 2018Date of Patent: July 14, 2020Assignee: AVL Powertrain Engineering, Inc.Inventors: Gregory Mordukhovich, Hamid Vahabzadeh