Patents Examined by Dirk Wright
  • Patent number: 10442437
    Abstract: A control device of a vehicle including a multi-speed transmission having gear positions switched by executing release of a release-side engagement device out of a plurality of engagement devices and engagement of an engagement-side engagement device out of the plurality of engagement devices, and an engine of which a power is transmitted through the multi-speed transmission to drive wheels, the control device performing a shift of the multi-speed transmission by using a predefined shift model for determining control operation amounts of a torque at an input rotating member of the multi-speed transmission, a torque capacity of the release-side engagement device, and a torque capacity of the engagement-side engagement device, the control operation amounts achieving shift target values that are a target value of a torque at an output rotating member of the multi-speed transmission and a target value of angular acceleration of the input rotating member of the multi-speed transmission, the control device comprisi
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: October 15, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Norihiro Tsukamoto, Tomohiro Asami
  • Patent number: 10436284
    Abstract: A torsional vibration damper having enhanced vibration damping performance is provided. The torsional vibration damper comprises: a vacant area existing between an outer circumference of the sun gear and an inner circumference of the ring gear outside of a revolving range of the planetary gears revolved as a result of relative rotation between the sun and the ring gear; and a mass increasing portion that is formed on the rotary member other than an input element and an output element within the vacant area in such a manner as to protrude from the rotary member.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 8, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuya Takahashi, Tadashi Sekiguchi, Morihiro Matsumoto
  • Patent number: 10436313
    Abstract: The hydraulic control device includes: a mechanical variable-capacity oil pump; and an electronic control unit configured to calculate a target discharge volume of the mechanical variable-capacity oil pump using a plurality of parameters of the transmission, and control the mechanical variable-capacity oil pump based on the target discharge volume.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: October 8, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu Nagasato, Hironori Asaoka, Yoshio Ito
  • Patent number: 10428939
    Abstract: A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: October 1, 2019
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Donald C. Miller, David J. Allen, Robert A. Smithson
  • Patent number: 10422414
    Abstract: A speed reducer includes a first transmission shaft, an eccentric wheel, a first roller assembly, a rotating wheel, a second roller assembly and a second transmission shaft. The rotating wheel includes a main body and an axle hole. The main body includes a convex structure and a concave structure. The convex structure is protruded from an outer periphery of the main body and has outer teeth. The outer teeth are contacted with the corresponding first rollers. The concave structure is concavely formed in a surface of the main body and includes inner teeth. The inner teeth are contacted with plural second rollers of the second roller assembly. The speed reducer of the present invention is an epicycloid-epicycloid speed reducer or a hypocycloid-hypocycloid speed reducer. Since the speed reducer is designed to have four operating situations, the speed reducer can have various reduction ratios.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 24, 2019
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yi-Lun Ho, Ching-Hsiung Tsai, Jia-Ming Wu
  • Patent number: 10415672
    Abstract: An apparatus includes a ring gear having a plurality of gear teeth, where each of the plurality of gear teeth of the planet gear has a partial cycloid profile, and a planet gear rotatable within the ring gear, where the planet gear has a plurality of gear teeth, and each of the plurality of gear teeth of the planet gear has a partial cycloid profile. The total number of gear teeth of the planet gear is smaller than the total number of gear teeth of the ring gear. The gear teeth of the planet gear operatively mesh with corresponding gear teeth of the ring gear. The total number of gear teeth of the planet gear provides each gear tooth of the planet gear with a bending strength and a compressive strength such that the bending strength and the compressive strength differ by less than a predetermined amount.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: September 17, 2019
    Assignee: SRI International
    Inventor: Curt Salisbury
  • Patent number: 10415681
    Abstract: A linear actuator that includes a torque generator, a lead screw, a driven nut, an activation circuit and a push rod. The torque generator has an output shaft. The lead screw is operationally coupled to the output shaft of the torque generator. The driven nut has an internally threaded bore that threadably engages external threads of the lead screw in such a manner that frictional forces between the internal threaded bore and the external threads prevent movement between the driven nut and the lead screw when no torque is provided by the torque generator. The activation circuit is in communication with the torque generator. The activation circuit has at least one switch that is configured to be activated by the driven nut. The push rod is operationally coupled to the driven nut.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: September 17, 2019
    Assignee: TEAM Industries, Inc.
    Inventors: Stephen James Molde, Cody Jay Wentzel, Matthew Douglas Cann
  • Patent number: 10415678
    Abstract: A brake arrangement for a gearbox is provided, where the gearbox comprises an input shaft, a counter shaft, a main shaft and a plurality of gear wheels pairs which each comprises a primary gear wheel arranged on the counter shaft and a secondary gear wheel arranged on the main shaft. The brake arrangement further comprises at least two brake units each configured to act with a braking torque on the counter shaft or a component connected to the counter shaft, and a control unit configured to control the activation of the brake units. The control unit is configured to activate the at least two brake units one at a time or both simultaneously during an upshift process in the gear box when a secondary gear wheel of a gear wheel pair to be engaged in the gear box is retarded to a synchronous speed with the main shaft.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: September 17, 2019
    Assignee: Scania CV AB
    Inventors: Peer Norberg, Daniel Häggström
  • Patent number: 10407056
    Abstract: Methods and systems are provided for starting an engine in a hybrid vehicle. In one example, a method includes cranking an engine of the vehicle by controlling a capacity of a clutch of a dual clutch transmission positioned downstream of the engine and compensating for driveline disturbance resulting from the cranking via controlling an electric machine positioned downstream of the dual clutch transmission. In this way, engine starting may be conducted under a variety of vehicle operating conditions.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 10, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Stan L. Bower, Kenneth Miller, Jason Meyer, Xiaoyong Wang, Matthew John Shelton
  • Patent number: 10408304
    Abstract: A gear having an axis of rotation includes a gear rim, with at least a portion of the gear rim configured to receive a load and define a loaded gear rim arc corresponding to the portion of the gear rim. A bearing pin extends axially through the gear rim, the gear rim and the bearing pin defining a roller element gap therebetween. The gear rim is configured to define a loaded roller element gap arc substantially concentric with the loaded gear rim arc, the loaded element gap arc having a loaded roller element gap arc length. The gear rim is further configured to retain a loaded bearing portion of the bearing within the portion of the roller element gap such that a loaded bearing portion length is in a range from and including about 75% to and including about 125% of the loaded roller element gap arc length.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: September 10, 2019
    Assignee: General Electric Company
    Inventor: Darren Lee Hallman
  • Patent number: 10407075
    Abstract: A control apparatus (80; 122) for a vehicle provided with a motor/generator (MG2; MG) functioning as a drive power source, and a step-variable transmission (20; 110) which constitutes a part of a power transmitting path between the drive power source and drive wheels (28; 116) and which is placed in a selected one of a plurality of speed positions with engagement of a selected one or ones of a plurality of coupling devices (CB).
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: September 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiromasa Tatsushiro, Hiromichi Kimura, Tooru Matsubara, Kazuyuki Shiiba, Takeshi Kitahata, Shinichi Sasade, Nobufusa Kobayashi, Masato Yoshikawa, Takahiro Kimura
  • Patent number: 10408341
    Abstract: A control device for a transmission that has multiple shift stages and is configured to change an amount of power output from an engine of a vehicle for output includes a setting unit and a control unit. The setting unit is capable of setting, as a shift change mode, either one of a first shift change mode and a second shift change mode in which a speed of the engine is maintained in a higher state than that in the first shift change mode. The control unit is configured to execute shift change control on a basis of the set shift change mode. The control unit is configured to exclude one or more shift stages of the multiple shift stages and execute the shift change control when the second shift change mode is set.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: September 10, 2019
    Assignee: SUBARU CORPORATION
    Inventors: Takahiro Kawashiri, Kohsuke Kikuhara
  • Patent number: 10407053
    Abstract: Methods and systems are provided for operating a vehicle driveline where the vehicle driveline does not include a torque converter. In one example, a method comprises controlling a capacity of a clutch configured to transmit torque between an engine and a transmission, and an output of an electric motor positioned in a driveline of the hybrid vehicle during a vehicle launch to emulate a performance of a torque converter positioned in the driveline of the vehicle. In this way, vehicle launch maneuvers may be conducted for vehicles that are equipped with a clutch and an electric motor, such that said launch maneuvers mimic those of a vehicle with a torque converter, which may improve customer satisfaction and improve engine efficiency.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: September 10, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Kevin Ray Ruybal, Michael Glenn Fodor
  • Patent number: 10400893
    Abstract: In a transmission, a controller sets a target line pressure to an offset target value, which is a value obtained by adding a positive offset amount to one of a target PRI pressure and a target SEC pressure, in a speed ratio range in which the offset target value is higher than the other at least during an inertia phase in a sub-transmission mechanism when a coordinated shift is carried out. At that time, the one of the target PRI pressure and the target SEC pressure is the target SEC pressure when a variator is downshifted by the coordinated shift while being the target PRI pressure when the variator is upshifted by the coordinated shift.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: September 3, 2019
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Mamiko Inoue, Tomonari Uchiyama, Hideshi Wakayama
  • Patent number: 10399558
    Abstract: A hybrid vehicle and a control method of gear shift therefor are provided. The hybrid vehicle and the control method of gear shift therefor minimize torque fluctuation during gear shift to enhance driving force and fuel efficiency. The method includes predicting a time point when gear shift occurs and estimating an intervention amount of the gear shift. Engine torque corresponding to the estimated intervention amount is then reduced up to the time point when the gear shift occurs and motor torque corresponding to the reduced engine torque is increased up to the time point when the gear shift occurs.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 3, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Joon Young Park
  • Patent number: 10400891
    Abstract: A system, method, and apparatus for controlling acceleration of a machine when the machine exits a grade. The system, method, and apparatus may determine a virtual gear having a maximum speed limit equivalent that matches the speed of the machine as the machine exits the grade. The system, method, and apparatus may also deactivate an automatic retarding control (ARC) strategy, which may be activated when the machine is on the grade to reduce and limit the speed of the machine to no more than a set speed, if the ARC strategy is active as the machine exits the grade. The system, method, and apparatus may also control automatic downshift of a transmission system to the virtual gear if the ARC mode was activing during the exit from the graded surface and is now deactive.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: September 3, 2019
    Assignee: Caterpillar Inc.
    Inventors: Austin J. Scott, Barry Mei, Michael D. Mitchell
  • Patent number: 10393259
    Abstract: A hybrid vehicle includes an engine, an electric machine selectively coupled to the engine, a transmission having a torque converter impeller coupled to the electric machine and a torque converter clutch configured to selectively couple the impeller to a turbine, and a controller configured to control pressure of the torque converter clutch responsive to estimated clutch capacity, which is adjusted by the controller to equal impeller torque responsive to impeller speed exceeding turbine speed during clutch disengagement. A model of estimated torque converter clutch capacity may be stored in memory and adapted to actual clutch capacity by applying a gain or offset determined during opening of the clutch.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: August 27, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Jason Meyer, Jeffrey Allen Doering, Bernard D. Nefcy, Rajit Johri
  • Patent number: 10392008
    Abstract: A control device for a four-wheel drive vehicle includes a differential restriction device which varies a differential restriction degree between a front wheel rotary shaft and a rear wheel rotary shaft, a differential restriction device and control units for controlling the differential restriction device. The control device is configured to control a behavior when the vehicle is being braked. Further, the control unit is configured to lower the differential restriction degree when a yaw rate of the vehicle is lower than a predetermined yaw rate threshold and a time decreasing rate of an estimated vehicle body speed which is a vehicle body speed estimated based on a wheel speed of the vehicle falls below a predetermined decreasing rate when the vehicle is being braked, in a vicinity of a maximum value.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: August 27, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryochi Watanabe
  • Patent number: 10396626
    Abstract: An electric machine includes a housing, a shaft, which is rotatably supported in the housing, a stator, which is received in the housing, and a rotor, which is received in the housing and interacts with the stator. A planetary gear train, accommodated in the housing, connects the rotor and the shaft with one another.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: August 27, 2019
    Assignee: AUDI AG
    Inventor: Stefan Maiwald
  • Patent number: 10384536
    Abstract: A power coupling system for electric vehicle, an electric vehicle having the same and a control method thereof are provided. Said power coupling system comprises a planet gear transmission mechanism comprising a sun gear, planet gears, a planet carrier and a ring gear, wherein the planet carrier is connected with the planet gears, and the planet gears mesh with the sun gear and the ring gear respectively; a clutch engaged with or disengaged from the ring gear in a controlled way; a main reduction gear set connected to an output shaft of the planet carrier; a differential connected to an output shaft of the main reduction gear set; a first motor for driving an input shaft of the sun gear of the planet gear transmission mechanism; and a second motor which drives the output shaft of the ring gear or the planet carrier in a controlled way.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: August 20, 2019
    Assignee: NIO NEXTEV LIMITED
    Inventors: Wenke Xu, Changhong Chen, Bin He