公开(公告)号：US20210062691A1

公开(公告)日：2021-03-04

申请号：US16909338

申请日：2020-06-23

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： You Sang Son ,  In Sang Ryu ,  Kyoung-Pyo Ha ,  Dongheon Park ,  Back Sik Kim ,  Seung Jae Lee

IPC: F01L13/00 ,  F01L1/047 ,  F01M9/10 ,  F16H1/16 ,  F16H53/04

Abstract: A continuous variable valve duration apparatus includes a cam unit, a cam formed on the cam unit, a camshaft inserted into the cam, a guide bracket, a guide shaft mounted on the guide bracket and disposed perpendicular to the camshaft, wherein a guide screw thread is formed on the guide shaft, a wheel housing disposed within the guide bracket, an inner wheel rotatably inserted into the wheel housing and movable perpendicular to the camshaft, a worm wheel disposed within the wheel housing, wherein an inner screw thread configured to engage with the guide screw thread is formed inside the worm wheel and an outer screw thread is formed on the worm wheel, a control shaft, a control worm formed on the control shaft, and a wheel elastic portion mounted to the wheel housing.

公开(公告)号：US10920679B2

公开(公告)日：2021-02-16

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 ,  F01L1/34 ,  F02D41/14 ,  F02D41/02 ,  F01L1/053 ,  F02D41/00 ,  F01L1/344 ,  F02D9/02 ,  F01L13/00

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.

公开(公告)号：US10563551B2

公开(公告)日：2020-02-18

申请号：US15806534

申请日：2017-11-08

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： You Sang Son ,  Ingee Suh ,  Kiyoung Kwon ,  In Sang Ryu ,  Kyoung Pyo Ha ,  Dongheon Park ,  Wootae Kim ,  Back Sik Kim ,  Seung Jae Lee

IPC: F01L1/34 ,  F01L13/00 ,  F01L1/356 ,  F01L1/26 ,  F01L1/047

Abstract: A continuous variable valve duration apparatus may include a camshaft, a cam unit on which a cam is formed, of which the camshaft is inserted thereto and of which a relative phase angle with respect to the camshaft is variable, an inner bracket transmitting rotation of the camshaft to the cam unit, a wheel housing in which the inner bracket is rotatably inserted, on which a guide groove parallel to the camshaft is formed, and on which a guide hole vertical to the camshaft is formed, a guide portion including a guide shaft inserted into the guide hole for guiding movement of the wheel housing and a control portion including a control shaft disposed parallel to the camshaft and inserted into the guide groove, and the control portion selectively rotating the control shaft for the relative position of the wheel housing with respect to the camshaft to be changed.

公开(公告)号：US10550738B2

公开(公告)日：2020-02-04

申请号：US16169578

申请日：2018-10-24

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： You Sang Son ,  Ingee Suh ,  Kiyoung Kwon ,  In Sang Ryu ,  Kyoung Pyo Ha ,  Dongheon Park ,  Wootae Kim ,  Back Sik Kim ,  Seung Jae Lee

IPC: F01L13/00 ,  F01L1/352 ,  F01L1/053 ,  F01L1/08 ,  F01L1/34 ,  F01L1/047 ,  F02D41/00

Abstract: A continuously variable valve duration apparatus may include: a camshaft; a cam unit on which a cam is formed, and the camshaft inserted to the cam; an inner wheel for transmitting rotation of the camshaft to the cam unit; a wheel housing into which the inner wheel is rotatably inserted and movable perpendicular to the camshaft; a guide shaft on which a guide screw thread is formed and disposed perpendicular to the camshaft; a worm wheel formed with an inner screw thread for engaging with the guide screw thread, and the worm wheel disposed within the wheel housing; and a control shaft on which a control worm for engaging with the worm wheel is formed.

公开(公告)号：US10202918B2

公开(公告)日：2019-02-12

申请号：US15340778

申请日：2016-11-01

Applicant: HYUNDAI MOTOR COMPANY

Inventor： In Sang Ryu ,  Kyoung Pyo Ha ,  You Sang Son ,  Kiyoung Kwon

IPC: F02D41/00 ,  F01L1/047 ,  F02D13/02

Abstract: The present disclosure provides a system and a method for controlling valve timing of continuous variable valve duration engine. The method includes: classifying control regions depending on engine speed and engine load; applying a maximum duration to an intake valve and controlling valve overlap between the intake valve and an exhaust valve in a first control region; applying the maximum duration to the intake valve and reducing the valve overlap by using exhaust valve closing (EVC) timing in a second control region; advancing intake valve closing (IVC) timing according to an increase of the engine load in a third control region; controlling a throttle valve to be fully opened and controlling the EVC timing to an angle after top dead center in a fourth control region; and controlling the throttle valve to be fully opened and controlling the IVC timing according to the engine speed in a fifth control region.

公开(公告)号：US09988989B2

公开(公告)日：2018-06-05

申请号：US15258052

申请日：2016-09-07

Applicant: HYUNDAI MOTOR COMPANY

Inventor： In Sang Ryu ,  Kyoung Pyo Ha ,  You Sang Son ,  Kiyoung Kwon

IPC: F02D13/02 ,  F01L1/34 ,  B60W10/06 ,  F02D41/26 ,  B60W20/10 ,  F01L1/047 ,  F02D41/00 ,  F02M35/104 ,  F01L1/053 ,  F01L13/00

CPC classification number: F02D13/0215 ,  B60W10/06 ,  B60W20/10 ,  F01L1/047 ,  F01L1/053 ,  F01L1/34 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2800/00 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/26 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/101 ,  F02M35/104 ,  Y02T10/18 ,  Y02T10/42 ,  Y10S903/905

Abstract: A method for controlling valve timing is provided for an engine including a continuous variable valve duration device disposed on an intake valve side, and a continuous variable valve duration device and continuous variable valve timing device disposed on an exhaust valve side. The method includes: classifying first, second, third, fourth, and fifth control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve and controlling a valve overlap in the first control region; applying the maximum duration to the intake valve and exhaust valve in the second control region; controlling a manifold absolute pressure (MAP) of an intake manifold to be maintained consistently in the third control region; controlling a wide open throttle valve (WOT) and retarding an exhaust valve opening (EVO) timing in the fourth control region; and controlling the WOT and retarding an intake valve closing (IVC) timing in the fifth control region.

公开(公告)号：US09964050B2

公开(公告)日：2018-05-08

申请号：US15258022

申请日：2016-09-07

Applicant: HYUNDAI MOTOR COMPANY

Inventor： In Sang Ryu ,  Kyoung Pyo Ha ,  You Sang Son ,  Kiyoung Kwon

IPC: F01L1/00 ,  F02D13/02 ,  F02D41/00 ,  F01L13/00 ,  F01L1/053 ,  F01L1/34

CPC classification number: F02D13/0215 ,  F01L1/053 ,  F01L1/34 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2013/111 ,  F01L2800/00 ,  F02D13/0226 ,  F02D13/0261 ,  F02D41/0007 ,  F02D41/009 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/101 ,  Y02T10/144 ,  Y02T10/18

Abstract: A method for controlling valve timing is provided for a turbo engine provided with a continuous variable valve duration (CVVD) device, a two stage variable valve duration device (VVD) and a continuous variable valve timing (CVVT) device. The method includes: classifying control regions; retarding an intake valve closing (IVC) timing and controlling an exhaust valve to limit a valve overlap in a first region; applying a maximum duration to an intake valve and applying a long duration to the exhaust valve in a second region; applying the long duration to the exhaust valve and advancing the IVC timing in a third region; controlling a throttle valve to be fully opened, applying a short duration to the exhaust valve and retarding an exhaust valve opening (EVO) timing in a fourth region; and controlling the throttle valve to be fully, applying the long duration to the exhaust valve and retarding the IVC timing in a fifth region.

公开(公告)号：US20180100446A1

公开(公告)日：2018-04-12

申请号：US15839606

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 ,  F02B25/145 ,  F02D13/0215 ,  F02D13/0219 ,  F02D13/0261 ,  F02D41/0007 ,  F02D41/009 ,  F02D2009/0235 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/023 ,  F02D2200/04 ,  F02D2200/0404 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2200/501 ,  F02D2200/602 ,  Y02T10/144 ,  Y02T10/18

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 CVVD device, current opening and closing timings of the intake valve and/or exhaust valve based on the target opening duration; and advancing or retarding, by the intake and/or exhaust CVVD devices, the current opening timing of the intake and exhaust valves while simultaneously retarding or advancing the current closing timing of the intake and exhaust valve by a predetermined value based on the target opening duration.

公开(公告)号：US09874153B2

公开(公告)日：2018-01-23

申请号：US15333973

申请日：2016-10-25

Applicant: HYUNDAI MOTOR COMPANY

Inventor： In Sang Ryu ,  Kyoung Pyo Ha ,  You Sang Son ,  Kiyoung Kwon

IPC: F02D13/02 ,  F01L1/40 ,  F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/26

CPC classification number: F02D13/0207 ,  F01L1/40 ,  F01L2800/10 ,  F02D13/0234 ,  F02D13/0238 ,  F02D13/0249 ,  F02D13/0261 ,  F02D41/0007 ,  F02D41/0235 ,  F02D41/1498 ,  F02D41/26 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/1002 ,  F02D2200/101 ,  Y02T10/144

Abstract: The method for controlling valve timing of an engine includes: classifying control regions; applying a maximum duration to an intake valve and a long duration to an exhaust valve in a first control region; advancing Intake Valve Closing timing, applying the long duration to the exhaust valve, and maintaining a maximum valve overlap in a second control region; applying the long duration to the exhaust valve and advancing the IVC timing and Exhaust Valve Closing timing in a third control region; applying a short duration to the exhaust valve and controlling the EVC timing in a fourth control region; controlling a throttle valve, applying the short duration to the exhaust valve, and retarding Exhaust Valve Opening timing in a fifth control region; and controlling the throttle valve and the EVC timing, applying the long duration to the exhaust valve, advancing the EVO timing in a sixth control region.

公开(公告)号：US09617925B2

公开(公告)日：2017-04-11

申请号：US14947892

申请日：2015-11-20

Applicant: Hyundai Motor Company

Inventor： Kiyoung Kwon ,  Ingee Suh ,  Kyoung Pyo Ha ,  In Sang Ryu ,  Back Sik Kim

IPC: F01L13/08 ,  F02D13/02 ,  F02D41/00

CPC classification number: F02D13/0234 ,  F01L1/0532 ,  F01L1/356 ,  F01L13/0026 ,  F01L13/08 ,  F01L2001/0473 ,  F01L2013/103 ,  F01L2800/09 ,  F01L2820/01 ,  F02D35/027 ,  F02D2041/001 ,  Y02T10/18

Abstract: A control method using a continuous variable valve duration apparatus may use a continuous variable valve duration apparatus including a wheel being mounted on a camshaft and having a wheel key to control duration of an intake valve of an engine, a cam device having a cam and a cam key, being adapted that the camshaft is inserted thereinto, and being disposed to can vary relative phase of the cam with respect to the camshaft, an inner bracket being connected with the wheel key and the cam key, a slider housing being adapted that the inner bracket is rotatably inserted thereinto and being disposed to can move vertically with respect to the engine, a controller varying a position of the slider housing to adjust rotation center of the inner bracket, and guide device guiding motion of the sliding housing.