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公开(公告)号：US20180266283A1
公开(公告)日：2018-09-20
申请号：US15986776
申请日：2018-05-22
Applicant: BorgWarner Inc.
Inventor： Franklin R. Smith , Daniel Brown
Abstract: A hydraulically operated camshaft phasing mechanism has two lock pins. One of the lock pins engages at an intermediate position and an end lock pin engages near one of the stops at the end of the phaser range of authority. At least one of the locking pins, preferably the end lock pin, when the vane is at an end stop position, is engaged by oil pressure and spring loaded to release when the oil pressure side of the end lock pin is vented.
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公开(公告)号：US11852053B2
公开(公告)日：2023-12-26
申请号：US17323451
申请日：2021-05-18
Applicant: BorgWarner Inc.
Inventor： Chad McCloy , Daniel Brown , Mark Wigsten
CPC classification number: F01L1/352 , F01L1/047 , F01L9/22 , F16H1/2863 , F01L2820/032
Abstract: An electrically-actuated variable camshaft timing (VCT) phaser assembly, comprises a sun gear configured to receive input from an electric motor and one or more planet gears having radially-outwardly-extending gear teeth that engage the sun gear; a first ring gear, having radially-inwardly extending gear teeth that engage the radially-outwardly-extending gear teeth of the sun gear, configured to receive rotational output provided by a crankshaft; a second ring gear, having radially-inwardly extending gear teeth that engage the radially-outwardly-extending gear teeth of the sun gear, configured to couple to a camshaft; one or more planet gear pins that carry the planet gear(s) and engage a planetary gear set to prevent the relative rotation of the planet gear pin(s) relative to the planetary gear set; and one or more springs that bias the planet gear pin(s) and the planetary gear(s) toward the first ring gear and the second ring gear.
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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：US20220364485A1
公开(公告)日：2022-11-17
申请号：US17319185
申请日：2021-05-13
Applicant: BorgWarner Inc.
Inventor： Andrew Morris , Jiju Alexander , Daniel Brown
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：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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Patent Agency Ranking
公开(公告)号：US20220372896A1
公开(公告)日：2022-11-24
申请号：US17323451
申请日：2021-05-18
Applicant: BorgWarner Inc.
Inventor： Chad McCloy , Daniel Brown , Mark Wigsten
Abstract: An electrically-actuated variable camshaft timing (VCT) phaser assembly, comprises a sun gear configured to receive input from an electric motor and one or more planet gears having radially-outwardly-extending gear teeth that engage the sun gear; a first ring gear, having radially-inwardly extending gear teeth that engage the radially-outwardly-extending gear teeth of the sun gear, configured to receive rotational output provided by a crankshaft; a second ring gear, having radially-inwardly extending gear teeth that engage the radially-outwardly-extending gear teeth of the sun gear, configured to couple to a camshaft; one or more planet gear pins that carry the planet gear(s) and engage a planetary gear set to prevent the relative rotation of the planet gear pin(s) relative to the planetary gear set; and one or more springs that bias the planet gear pin(s) and the planetary gear(s) toward the first ring gear and the second ring gear.
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公开(公告)号：US10648375B2
公开(公告)日：2020-05-12
申请号：US16155125
申请日：2018-10-09
Applicant: BorgWarner Inc.
Inventor： Daniel Brown , Shawn Blackmur , Chris D. Thomas
Abstract: An electrically-controlled eccentric camshaft phaser (10) that adjusts phase between a camshaft and a crankshaft includes a sprocket (12), configured to connect to the crankshaft and rotate about a center axis (x), having a sprocket ring gear (14); a camshaft plate (20) configured to connect to the camshaft and rotate about the center axis (x), having a camshaft ring gear (22); an eccentric shaft (28) that includes a crankshaft eccentric section (52) and a camshaft eccentric section (54); a sprocket bearing (16) that is received by the crankshaft eccentric section (52); a camshaft bearing (64), having a different diameter than the sprocket bearing (16), that is received by the camshaft eccentric section (54).
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公开(公告)号：US20220372895A1
公开(公告)日：2022-11-24
申请号：US17328288
申请日：2021-05-24
Applicant: BorgWarner Inc.
Inventor： Chad McCloy , Daniel Brown
Abstract: An electrically-actuated variable camshaft timing (VCT) device, comprising: an input configured to receive rotational force from an electric motor; an output configured to couple with a camshaft of an internal combustion engine; a planet gear having radially outwardly extending gear teeth configured to engage ring gears and a radially-inwardly-facing surface; a planet pin, supporting the planet gear, having an outer surface and an axis of rotation about which the planet gear rotates; and a spring applying force in a substantially axial direction along the axis of rotation that moves the planet gear in a radial direction.
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公开(公告)号：US10920626B2
公开(公告)日：2021-02-16
申请号：US15897262
申请日：2018-02-15
Applicant: BorgWarner Inc.
Inventor： Daniel Brown
IPC: F01L1/344 , F01L1/352 , H02K11/215 , F02D13/02 , F01L1/356 , H02K7/116 , F02D41/00 , H02K29/08 , H02K7/14 , F01L1/047 , G01D5/14 , F01L1/053
Abstract: A system and method of controlling an angular position of a camshaft relative to an angular position of a crankshaft includes detecting rotational movement of an electric motor output shaft controlling a camshaft phaser; detecting rotational movement of the crankshaft; determining the relative difference between the rotational movement of the electric motor output shaft and the rotational movement of the crankshaft; and determining whether the angular position of the camshaft relative to the angular position of the crankshaft is advancing, retarding, or remaining constant.
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公开(公告)号：US10352419B2
公开(公告)日：2019-07-16
申请号：US15635281
申请日：2017-06-28
Applicant: BorgWarner Inc.
Inventor： Daniel Brown , Chad McCloy
Abstract: A split ring planetary drive with at least one travel end stop received in at least one pocket of a first ring gear. The travel end stop is moveable between a first stop position in which as the planetary drive rotates in a direction the travel end stop engages the stop on the planet carrier, preventing further rotation of the split ring planetary drive in the direction, and a second position in which the travel end stop does not engage the stop on the planet carrier. The travel end stop may be a deadbolt, a snap ring or pivoting pawl.
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