公开(公告)号：US10753291B1

公开(公告)日：2020-08-25

申请号：US16539400

申请日：2019-08-13

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Jin Woo Choung ,  Kiyoung Kwon

IPC: F02D37/02 ,  F01N9/00 ,  F01N3/10 ,  F01N3/18 ,  F02D9/08

Abstract: A system of controlling an engine provided with a dual continuously variable valve duration device may include the engine including a combustion chamber, an intake valve, an ignition switch provided in the combustion chamber, and an exhaust valve, the CVVD provided to adjust an intake duration of the intake valve and an exhaust duration of the exhaust valve, a warm-up catalytic converter (WCC) including a three-way catalyst (TWC) for purifying hydrocarbons, carbon monoxide, nitrogen oxides contained in the exhaust gas downstream of the engine, a Hydrocarbon (HC) trap disposed downstream of the warm-up catalytic converter for adsorbing and removing the hydrocarbons contained in the exhaust gas, an electrically heated catalyst disposed downstream of the HC trap and provided with a heating device, a three-way catalyst (TWC) disposed downstream of the electrically heated catalyst for purifying hydrocarbons, carbon monoxide, and nitrogen oxides contained in the exhaust gas, and a controller for adjusting an ignition timing of the ignition switch, the intake duration and the exhaust duration based on a driving condition of the vehicle.

公开(公告)号：US10731583B2

公开(公告)日：2020-08-04

申请号：US16380428

申请日：2019-04-10

Applicant: Hyundai Motor Company ,  KIA Motors Corporation

Inventor： Jin Woo Choung ,  Kiyoung Kwon

IPC: F02D41/02 ,  F02D41/12 ,  F01N3/10 ,  F01N3/20 ,  F02D41/04 ,  F02D43/04 ,  F02D13/02 ,  F02P5/04 ,  F02P5/15 ,  F02D17/02

Abstract: A method of controlling oxygen purge of a three-way catalyst may include: performing a fuel cut-off; determining whether a fuel cut-in condition is satisfied after the fuel cut-off; calculating an optimum valve overlap according to an intake amount, an engine rotation speed, and an ignition timing if the fuel cut-in condition is satisfied after the fuel cut-off; controlling a CVVD apparatus to be at the optimum valve overlap; and performing the oxygen purge at the optimum valve overlap.

公开(公告)号：US10428747B2

公开(公告)日：2019-10-01

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: F01L1/344 ,  F02D13/02 ,  F02D41/00 ,  F02B25/14 ,  F02D9/02

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：US10415488B2

公开(公告)日：2019-09-17

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

IPC: F02D41/00 ,  F02D13/02 ,  F01L1/344 ,  F01L1/047 ,  F02D41/18 ,  F01L1/053 ,  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, 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.

公开(公告)号：US10415485B2

公开(公告)日：2019-09-17

申请号：US15839626

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 ,  F02D41/00 ,  F01L13/00 ,  F02D9/02 ,  F01L1/047 ,  F01L1/053 ,  F01L1/356

Abstract: A method for controlling intake and exhaust valves of an engine may include: determining, by a controller, a target opening duration of the intake and exhaust valves according to a control region determined 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, opening and closing timings of the intake valve and exhaust valve based on the target opening duration of the valves; and advancing or retarding, by the intake and/or exhaust CVVD devices, the opening timing of the intake and exhaust valves while simultaneously retarding or advancing the closing timing of the intake and exhaust valve by a predetermined value based on the target opening durations. In particular, the controller classifies five control regions based on the engine load and speed.

公开(公告)号：US10352257B2

公开(公告)日：2019-07-16

申请号：US15839596

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: F02D41/00 ,  F02D13/02 ,  F01L13/00 ,  F01L1/047 ,  F01L1/344 ,  F01L1/34 ,  F01L1/356 ,  F01L1/053 ,  F01L1/26

Abstract: A method for controlling intake and exhaust valves of an engine includes: Controlling opening and closing timings of the intake and exhaust valves by an intake continuous variable valve timing (CVVT) device and an exhaust CVVT devices; determining, by a controller, target intake and exhaust opening durations of the intake and exhaust valves, and target opening and closing timings of the valves based on an engine load and an engine speed; modifying current intake and exhaust opening durations based on the target opening durations via an intake continuous variable valve duration (CVVD) device and an exhaust CVVD device; adjusting opening or closing timings of the valves to the target opening or closing timings of the valves while maintaining the modified opening durations of the valves.

公开(公告)号：US10145312B2

公开(公告)日：2018-12-04

申请号：US15340742

申请日：2016-11-01

Applicant: HYUNDAI MOTOR COMPANY

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

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

Abstract: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling a valve overlap by using exhaust valve closing (EVC) timing in a second control region; advancing intake valve closing (IVC) 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 generating a scavenging phenomenon in a fifth control region; and controlling the throttle valve to be fully opened and controlling the IVC timing to prevent knocking in a sixth control region.

公开(公告)号：US10072588B2

公开(公告)日：2018-09-11

申请号：US15340742

申请日：2016-11-01

Applicant: HYUNDAI MOTOR COMPANY

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

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

Abstract: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; applying a maximum duration to an intake valve in a first control region; maintaining the maximum duration of the intake valve and controlling a valve overlap by using exhaust valve closing (EVC) timing in a second control region; advancing intake valve closing (IVC) 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 generating a scavenging phenomenon in a fifth control region; and controlling the throttle valve to be fully opened and controlling the IVC timing to prevent knocking in a sixth control region.

公开(公告)号：US20180171834A1

公开(公告)日：2018-06-21

申请号：US15806153

申请日：2017-11-07

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: F01L1/344 ,  F01L1/047

CPC classification number: F01L1/34413 ,  F01L1/047 ,  F01L1/267 ,  F01L1/356 ,  F01L2001/0473

Abstract: A continuous variable valve duration apparatus may include a camshaft, a cam device 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 internal bracket transmitting rotation of the camshaft to the cam device, a wheel housing in which the internal bracket is rotatably inserted and on which a guide groove parallel to the camshaft is formed, 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 and a slider housing interposed between the control shaft and the guide groove.

公开(公告)号：US09903281B2

公开(公告)日：2018-02-27

申请号：US15265011

申请日：2016-09-14

Applicant: HYUNDAI MOTOR COMPANY

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

IPC: F02D13/02 ,  F02D41/00 ,  F02D41/26

CPC classification number: F02D13/0207 ,  F02D13/0215 ,  F02D13/0219 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/009 ,  F02D41/26 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/023 ,  F02D2200/0404 ,  F02D2200/101 ,  F02D2200/501 ,  F02D2200/602 ,  Y02T10/18 ,  Y02T10/42

Abstract: Methods and devices are provided for controlling an engine provided with a continuously variable valve timing (CVVT) device disposed on an intake valve side, and with a continuous variable valve duration (CVVD) device and a continuously variable valve timing (CVVT) disposed on an exhaust valve side according to an exemplary form of the present disclosure. A method may include classifying a plurality of control regions depending on an engine speed and an engine load, and based upon which of the plurality of control regions is a control region of the engine, controlling opening and closing timing of the intake valve, controlling opening and closing timing of the exhaust valve, and controlling open duration of the exhaust valve.