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公开(公告)号：US20210381404A1
公开(公告)日：2021-12-09
申请号：US17113012
申请日：2020-12-05
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Hyeon Woo KIM , Kyoung Pyo HA , Back Sik KIM , Jong Gu KIM
Abstract: A continuously variable valve duration apparatus includes a camshaft, a cam unit on which a cam is formed, a guide bracket including an upper guide boss, an internal wheel configured to transmit rotation of the camshaft to the cam unit, a wheel housing in which the internal wheel is rotatably inserted, wherein a guide thread is formed in a portion of the wheel housing, and of which a guide shaft is formed to be movably inserted into the upper guide boss, a worm wheel to which an internal thread engaging with the guide thread is formed in the worm wheel, and to which an external thread is formed thereon, a control shaft on which a control worm engaged with the external thread is formed, and an upper bushing mounted on a lower portion of the upper guide boss to support the guide shaft.
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12.发明申请公开(公告)号：US20180100454A1
公开(公告)日：2018-04-12
申请号：US15840079
申请日：2017-12-13
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
CPC classification number: F02D41/0002 , F01L1/047 , F01L1/053 , F01L1/344 , F01L13/0015 , F01L2001/0537 , F02D13/0211 , F02D13/0215 , F02D13/0261 , F02D41/009 , F02D41/18 , F02D2041/001 , F02D2041/002 , F02D2200/023 , F02D2200/101 , F02D2200/501 , F02D2200/602 , Y02T10/18 , Y02T10/42
Abstract: A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device, opening and closing timings of the intake valve; controlling, by an exhaust CVVT device, opening and closing timing of the exhaust valve; determining, by a controller, first to fifth control regions based on engine load and speeds, and a target opening duration of the intake valve and target opening or target closing timings of the intake valve; modifying, by an intake continuous variable valve duration (CVVD) device, current opening and closing timings of the intake valve based on the target opening duration; and advancing or retarding, by the intake CVVD device, the current opening timing of the intake valve while simultaneously retarding or advancing the current closing timing of the intake valve by a predetermined value based on the target opening duration of the intake valve.
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公开(公告)号：US20180100445A1
公开(公告)日：2018-04-12
申请号：US15839566
申请日：2017-12-12
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
IPC: F02D13/02
CPC classification number: F02D13/0207 , F01L1/053 , F01L1/34 , F01L1/344 , F01L13/0015 , F01L2001/0537 , F01L2001/34496 , F01L2013/103 , F01L2800/00 , F02D13/0211 , F02D13/0215 , F02D13/0261 , F02D41/0002 , F02D41/0235 , F02D41/1498 , F02D2009/0235 , F02D2041/002 , F02D2200/1002 , F02D2200/101 , Y02T10/18 , Y02T10/42 , Y10S903/905
Abstract: A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device and an exhaust CVVT device, opening and closing timings of the intake valve and exhaust valves; determining, by a controller, a target opening duration of the intake and exhaust valves based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust two-stage variable valve duration device, current opening and closing timings of the intake valve and exhaust valve based on the target opening durations. In particular, the exhaust two-stage VVD device switches a current opening duration of the exhaust valve to a first exhaust opening duration or a second exhaust opening duration which is shorter than the first opening duration based on the target opening duration of the exhaust valve.
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公开(公告)号：US20170284311A1
公开(公告)日：2017-10-05
申请号：US15366157
申请日：2016-12-01
Applicant: Hyundai Motor Company
Inventor： You Sang SON , Kyoung Pyo HA , Back Sik KIM
CPC classification number: F02D13/0207 , F01L1/0532 , F01L1/356 , F01L13/0015 , F01L2013/103 , F01M9/10 , F01M9/102 , F01M9/109 , F01M11/02 , F01M2011/026
Abstract: A continuous variable valve duration apparatus may include a camshaft, a cam device, of which the camshaft is inserted thereto, of which a phase angle with respect to the camshaft is variable, and the cam device on which a cam key is formed, an inside bracket transmitting rotation of the camshaft to the cam device and on which a first slide opening and a second sliding opening are formed respectively, a slider housing in which the inside bracket is rotatably inserted and of which relative position with respect to the camshaft is variable, a controller selectively changing the relative position of the slider housing, a cam pin of which a cam key opening for the cam key to be slidably inserted thereto is formed and slidably inserted into the second sliding opening and a slider pin rotatably inserted into the first sliding opening and slidably inserted into the camshaft.
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15.发明申请公开(公告)号：US20170167407A1
公开(公告)日：2017-06-15
申请号：US15340692
申请日：2016-11-01
Applicant: HYUNDAI MOTOR COMPANY
Inventor： In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
CPC classification number: F02D13/0215 , F01L1/047 , F01L1/34 , F01L1/40 , F01L13/0015 , F01L2001/0537 , F01L2800/06 , F01L2800/10 , F02D13/0234 , F02D13/0238 , F02D13/0249 , F02D13/0261 , F02D41/0007 , F02D41/26 , F02D2041/001 , F02D2041/002 , F02D2200/101 , Y02T10/144 , Y02T10/18
Abstract: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration. The method may include: classifying a plurality of control regions depending on an engine speed and an engine speed; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling the exhaust valve to reach a maximum duration in a second control region; advancing intake valve closing (IVC) timing and exhaust valve closing (EVC) timing in a third control region; controlling the IVC timing to be close to bottom dead center (BDC) in a fourth control region; controlling a throttle valve to be fully opened and controlling the IVC timing to an angle after BDC in a fifth control region; and controlling the throttle valve to be fully opened and advancing the IVC timing in a sixth control region.
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Patent Agency Ranking
公开(公告)号：US20170167401A1
公开(公告)日：2017-06-15
申请号：US15258035
申请日：2016-09-07
Applicant: HYUNDAI MOTOR COMPANY
Inventor： In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
CPC classification number: B60W10/06 , B60W20/10 , F01L1/047 , F01L1/34 , F01L13/0015 , F01L2001/0537 , F01L2820/032 , F02D13/0219 , F02D13/0261 , F02D41/0002 , F02D41/0007 , F02D41/1406 , F02D2041/001 , F02D2041/002 , F02D2200/101 , Y02T10/144 , Y02T10/18 , Y02T10/42 , Y10S903/905
Abstract: A method for controlling valve timing for an engine includes: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve and controlling an exhaust valve to limit a valve overlap in a first region; controlling the intake valve and the exhaust valve to maintain the maximum duration in a second region; advancing an intake valve closing (IVC) timing and an exhaust valve closing (EVC) timing in a third region; approaching the IVC timing to a bottom dead center (BDC) in a fourth region; controlling a throttle valve to be fully opened, advancing an intake valve opening (IVO) timing before a top dead center (TDC), and controlling the IVC timing to be a predetermined value after the BDC in a fifth region; and controlling the throttle valve to be fully opened and advancing the IVC timing in a sixth region.
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17.发明申请公开(公告)号：US20170167396A1
公开(公告)日：2017-06-15
申请号：US15267822
申请日：2016-09-16
Applicant: Hyundai Motor Company
Inventor： In Sang RYU , Kyoung Pyo HA , You Sang SON , Kiyoung KWON
CPC classification number: F02D41/0002 , F01L1/053 , F01L1/344 , F01L13/0015 , F01L2001/0537 , F01L2001/34496 , F01L2013/111 , F01L2800/00 , F01L2820/01 , F02D13/0215 , F02D13/0261 , F02D2041/001 , F02D2041/002 , F02D2200/1002 , F02D2200/101 , Y02T10/18 , Y02T10/42
Abstract: A system and a method for controlling valve timing of a continuous variable valve duration engine including classifying control regions depending on engine speed and load; applying a maximum duration to an intake valve and a long duration to an exhaust valve and limiting an overlap; applying the maximum duration to the intake valve and the long duration to the exhaust valve, and adjusting the overlap according to the engine load; applying the long duration to the exhaust valve, fixing an exhaust valve open timing and an exhaust valve close timing, and advancing an intake valve close timing according to an increase of engine load; controlling a wide open throttle valve and applying a short duration to the exhaust valve; and controlling a wide open throttle valve, applying the long duration to the exhaust valve, delaying the intake valve close timing according to an increased engine speed.
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公开(公告)号：US20170107866A1
公开(公告)日：2017-04-20
申请号：US15266945
申请日：2016-09-15
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Kyung Mo KIM , Kyoung Pyo HA , You Sang SON
CPC classification number: F01L1/3442 , F01L1/047 , F01L1/053 , F01L1/181 , F01L1/185 , F01L1/20 , F01L1/267 , F01L1/344 , F01L13/0015 , F01L13/0026 , F01L2001/0473 , F01L2001/3443 , F01L2001/34453 , F01L2013/105 , F01L2105/00 , F01L2800/06
Abstract: A variable valve duration system may include a camshaft, a first cam portion including a first cam, into which the camshaft is inserted and of which a relative phase angle of the first cam with respect to the camshaft is variable, an inner bracket transmitting rotation of the camshaft to the first cam portion, a slider housing into which the inner bracket is rotatably inserted, a first rocker arm having a first end contacting the first cam and a second end connected to a first valve, a rocker shaft to which the first rocker arm is rotatably connected, a solenoid valve to selectively supply hydraulic pressure, and a position controller to selectively change a position of the slider housing according to the selective supplying of the hydraulic pressure from the solenoid valve.
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公开(公告)号：US20170081995A1
公开(公告)日：2017-03-23
申请号：US14955952
申请日：2015-12-01
Applicant: Hyundai Motor Company
Inventor： You Sang SON , Kyoung Pyo HA , Back Sik KIM , Kiyoung KWON
IPC: F01L13/00
CPC classification number: F01L13/0015 , F01L1/18 , F01L1/185 , F01L1/2405 , F01L1/26 , F01L1/267 , F01L13/00 , F01L13/0026 , F01L13/0063 , F01L2013/0068 , F01L2013/0084 , F01L2105/00
Abstract: A continuously variable valve lift apparatus may include a camshaft, a cam portion on which a cam is formed and into which the camshaft is inserted, a slider housing into which the cam portion is rotatably inserted and of which a position is rotatable around a pivot shaft, a control portion engaged with the slider housing and configured to selectively rotate the slider housing around the pivot shaft, an output portion rotatable around the pivot shaft, contacting the cam and onto which a valve shoe is formed, and a valve device contacting the valve shoe and driven by rotation of the cam.
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公开(公告)号：US20170081994A1
公开(公告)日：2017-03-23
申请号：US14955866
申请日：2015-12-01
Applicant: Hyundai Motor Company
Inventor： You Sang SON , Kyoung Pyo HA , Back Sik KIM , Kiyoung KWON
IPC: F01L13/00
CPC classification number: F01L13/0015 , F01L1/185 , F01L1/2405 , F01L13/0026 , F01L13/0063 , F01L2013/0084 , F01L2013/103 , F01L2105/00
Abstract: A continuously variable valve lift apparatus may include a camshaft, a cam portion on which two rotation portions are formed, on which a cam is formed between the two rotation portions and into which the camshaft is inserted, two slider housings into which each rotation portion is rotatably inserted therein, of which a position is moved for changing a relative position of the cam portion with respect to the camshaft and onto which a guide slot is formed, a control portion configured to selectively move the position of each of the two slider housings, a guide shaft parallel to the camshaft and inserted into the guide slot for guiding movement of the slider housing, an output portion rotatable around a pivot shaft and onto which a valve shoe is formed, and a valve device configured to be driven by the valve shoe.
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