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公开(公告)号：US11703115B2
公开(公告)日：2023-07-18
申请号：US17590922
申请日：2022-02-02
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Richard Baier
CPC classification number: F16H49/001 , F01L1/352 , F01L2001/3521 , F16H2049/003
Abstract: A flexible transmission element is disclosed which can be used, in particular in a harmonic drive and which includes a sleeve-shaped, outer toothed section and a flange connected to this section, the outer toothing of the sleeve-shaped section is sheet metal toothing formed in a die.
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公开(公告)号：US11643950B2
公开(公告)日：2023-05-09
申请号：US17319185
申请日：2021-05-13
Applicant: BorgWarner Inc.
Inventor： Andrew Morris , Jiju Alexander , Daniel Brown
CPC classification number: F01L9/20 , F01L1/344 , F02D13/08 , F01L1/352 , F01L2800/01 , F01L2820/032 , F01L2820/041 , F01L2820/044
Abstract: A method includes determining a value of an operational motor current limit and setting a value of a startup current limit equal to a predetermined value in excess of the value of the operational motor current limit if a set of predetermined conditions is satisfied. The method includes determining that operation of the engine has been interrupted, operating the electric motor of the variable valve timing mechanism with a current having a magnitude that is less than or equal to the startup current limit after determining that operation of the engine has been interrupted, determining that operation of the engine has resumed, and operating the electric motor of the variable valve timing mechanism with a current having a magnitude that is less than or equal to the operational motor current limit after determining that operation of the engine has resumed.
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公开(公告)号：US20220325642A1
公开(公告)日：2022-10-13
申请号：US17701202
申请日：2022-03-22
Applicant: AISIN CORPORATION
Inventor： Shuhei SUGIYAMA
Abstract: A valve opening and closing timing control device includes a driving-side rotating body, a driven-side rotating body, a stopper configured to determine a mechanical limit of a displacement region of a relative rotation phase, a phase control mechanism configured to change the relative rotation phase, and a control unit configured to control the electric motor so as to displace the actual phase detected by a phase sensor. A limit phase at which the stopper reaches an abutting state is set in advance when rotation of the electric motor is stopped while the internal combustion engine operates. Upon executing stop control of stopping the internal combustion engine, except when the actual phase is already the limit phase, the control unit executes braking control of limiting the rotation of the electric motor by controlling an electric current to be supplied to the electric motor.
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公开(公告)号：US11454141B1
公开(公告)日：2022-09-27
申请号：US17522319
申请日：2021-11-09
Applicant: BorgWarner Inc.
Inventor： Shawn Blackmur , Anthony Mattord , Glen Kozeli , John R. Smerczak , Daniel Brown
Abstract: An electrically-actuated variable camshaft timing (VCT) assembly includes a gearbox assembly including an input; an electric motor having a rotor, a stator, and a motor shaft that is coupled with the input of the gearbox assembly, wherein the motor shaft includes etchings, on an outer surface of the motor shaft, that releasably couple the motor shaft to the rotor at a center aperture of the rotor when an amount of torque exerted on the motor shaft via the gearbox assembly is less than or equal to a predetermined torque value, and the etchings are further configured to decouple the motor shaft from the rotor when the amount of torque exerted on the motor shaft is greater than the predetermined torque value.
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公开(公告)号：US11441453B2
公开(公告)日：2022-09-13
申请号：US17447482
申请日：2021-09-13
Applicant: DENSO CORPORATION
Inventor： Makoto Otsubo , Kenichi Tomomatsu , Shuhei Yamamoto , Hiroki Takahashi , Soichi Kinouchi
Abstract: An Oldham coupling includes: a driven Oldham flange that is formed at a drive-side rotor; a drive Oldham flange that is formed at a planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange. A thrust section is formed at a rotor plate portion which is a portion other than the Oldham coupling. The thrust section is configured to limit tilting of the planetary rotor relative to the driven Oldham flange when the thrust section contacts the planetary rotor in an axial direction. There is satisfied a relationship of θ2>θ1 where: θ1 is a maximum tilt amount of the planetary rotor relative to the driven Oldham flange; and θ2 is a maximum tilt amount of the planetary rotor in a clearance formed at the Oldham coupling.
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Patent Agency Ranking
公开(公告)号：US11434788B2
公开(公告)日：2022-09-06
申请号：US17521251
申请日：2021-11-08
Applicant: DENSO CORPORATION
Inventor： Kenji Tada , Hiroki Takahashi
Abstract: A valve timing adjusting device adjusts an opening/closing timing of a first valve driven by a rotation of a first camshaft and an opening/closing timing of a second valve driven by a rotation of a second camshaft. The valve timing adjusting device includes a first driving circuit controlling a first motor configured to generate a torque to shift a rotation phase of the first camshaft and a second driving circuit controlling a second motor configured to generate a torque to shift a rotation phase of the second camshaft. A first switching element of the first driving circuit operates at a switching frequency that is different from that of a second switching element of the second driving circuit.
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公开(公告)号：US11434787B2
公开(公告)日：2022-09-06
申请号：US17475591
申请日：2021-09-15
Applicant: DENSO CORPORATION
Inventor： Takahito Kamiya
Abstract: A valve timing adjustment device includes a driving-side rotatable body and a driven-side rotatable body. The driving-side rotatable body is configured to be rotated about a rotational axis synchronously with a drive shaft and includes a sprocket portion and a housing portion. The sprocket portion is configured to receive a drive force transmitted from the drive shaft. The housing portion is shaped in a tubular form and is formed separately from the sprocket portion. The driven-side rotatable body is configured to be rotated about the rotational axis synchronously with a driven shaft.
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公开(公告)号：US20220195898A1
公开(公告)日：2022-06-23
申请号：US17608442
申请日：2020-05-04
Applicant: HUSCO Automotive Holdings LLC
Inventor： Curtis L. Van Weelden , Dean Wardle , Selena Boltik , Austin Schmitt
IPC: F01L1/352
Abstract: A cam phasing system is provided. In some non-limiting examples, the cam phasing system includes a planetary actuator having a first sun gear, a first set of planet gears meshed to and arranged circumferentially around the first sun gear, a first ring gear meshed with the first set of planet gears, and a second sun gear. The second sun gear is rotationally fixed. The planetary actuator further includes a second set of planet gears meshed to and arranged circumferentially around the second sun gear, a second ring gear meshed with the second set of planet gears, and an input shaft rotationally coupled to the first sun gear for rotation therewith. Rotation of the input shaft rotates the first ring gear relative to the second ring gear.
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公开(公告)号：US11313256B2
公开(公告)日：2022-04-26
申请号：US16928589
申请日：2020-07-14
Applicant: AISIN CORPORATION
Inventor： Hajime Sano , Hiroki Mukaide , Kenji Ikeda , Tomoharu Otake , Kenta Koide
Abstract: An Oldham coupling includes an engagement arm. At least either a driving-side rotor or an input gear has an engagement portion engaged with the engagement arm and is connected to the Oldham coupling. The engagement arm has a pair of arm flat surface portions perpendicular to a rotational direction of the driving-side rotor. The engagement portion has a pair of engagement flat surface portions that the arm flat surface portions face in a sliding contact manner. Each arm flat surface portion is, within a range where the arm flat surface portion slides against a facing engagement flat surface portion, always in contact with an overlapping portion of the engagement flat surface portion with the arm flat surface portion when viewed from a direction perpendicular to a sliding direction of the Oldham coupling and in which the arm flat surface portion and the engagement flat surface portion overlap each other.
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公开(公告)号：US11236645B2
公开(公告)日：2022-02-01
申请号：US17197233
申请日：2021-03-10
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Atsushi Yamamoto
Abstract: A valve timing controller includes: a driving-side rotation member synchronously rotating with respect to a crankshaft of an internal combustion engine; a driven-side rotation member disposed coaxially with a rotation axis of the driving-side rotation member, and rotating integrally with a camshaft of the engine; a phase setting mechanism setting a relative rotation phase between the driving-side and driven-side rotation members; a brushless motor driving the phase setting mechanism; a control portion controlling the brushless motor by electrifying an inverter having three sets of arm portions having high-side and low-side switching elements connected to each other in series between a first power supply line and a second power supply line connected to a potential lower than a potential of the first power supply line; and a command information acquisition section acquiring holding command information indicating a command for holding a rotor of the brushless motor in a non-rotating state.
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