公开(公告)号：US20170167406A1

公开(公告)日：2017-06-15

申请号：US15340673

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 ,  F02D41/26 ,  F02D41/00 ,  F01L1/34

CPC classification number: F02D13/0215 ,  F01L1/053 ,  F01L1/34 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2001/34496 ,  F01L2250/02 ,  F01L2800/00 ,  F02D41/0002 ,  F02D41/1406 ,  F02D41/26 ,  F02D2041/001 ,  F02D2200/101 ,  Y02T10/18 ,  Y02T10/42

Abstract: The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine, including: classifying a plurality of control regions based on engine load and speed; applying a maximum duration to an intake valve and a long duration to an exhaust valve in a first control region; maintaining a maximum valve overlap in a second control region; advancing intake valve closing (IVC) timing and exhaust valve closing (EVC) timing in a third control region; applying a short duration to the exhaust valve and controlling the IVC timing to bottom dead center 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 applying the long duration to the exhaust valve, and controlling the IVC timing to prevent knocking in a sixth control region.

公开(公告)号：US20170167400A1

公开(公告)日：2017-06-15

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: F02D13/02 ,  F01L13/00 ,  F02D41/00

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：US20170167398A1

公开(公告)日：2017-06-15

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: F02D13/02 ,  F02D41/00 ,  F01L1/047 ,  F02D41/26

CPC classification number: F02D41/009 ,  F01L1/047 ,  F01L1/053 ,  F01L1/344 ,  F01L13/0015 ,  F01L2001/0537 ,  F02D13/0215 ,  F02D13/0261 ,  F02D41/0002 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/101 ,  Y02T10/18 ,  Y02T10/42

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：US20160169057A1

公开(公告)日：2016-06-16

申请号：US14724372

申请日：2015-05-28

Applicant: Hyundai Motor Company

Inventor： Kiyoung Kwon ,  lngee SUH ,  Kyoung Pyo HA ,  In Sang RYU ,  Back Sik KIM

IPC: F01L1/34

CPC classification number: F01L1/34 ,  F01L1/344 ,  F01L2800/14 ,  F02D13/0226 ,  F02D13/0238

Abstract: A control method using a continuous variable duration apparatus provided to adjust opening duration of an intake valve of an engine includes: determining a reduction amount of a compression ratio to prevent knocking, when knocking of an engine is expected, setting a desired effective compression ratio required for the reduction amount of the effective compression ratio, setting desired duration for the set desired effective compression ratio, and controlling duration of the intake valve on the basis of the set desired duration.

Abstract translation: 使用设置用于调节发动机的进气门的打开持续时间的连续可变持续时间设备的控制方法包括：确定压缩比的减小量，以防止在发动机爆震时爆震，当需要设定所需的有效压缩比时 对于有效压缩比的减少量，设定设定的期望有效压缩比的期望持续时间，以及基于设定的期望持续时间来控制进气门的持续时间。

公开(公告)号：US20160160810A1

公开(公告)日：2016-06-09

申请号：US14792446

申请日：2015-07-06

Applicant: HYUNDAI MOTOR COMPANY

Inventor： In Sang RYU ,  In Gee SUH ,  Kyoung Pyo HA ,  Back Sik KIM ,  Ki Young KWON

IPC: F02M26/23

CPC classification number: F02D41/22 ,  F02D41/0055 ,  F02D2041/227 ,  F02D2041/228 ,  F02M26/22 ,  F02M26/49 ,  F02P5/1516 ,  F02P5/152 ,  G01M15/10 ,  Y02T10/46 ,  Y02T10/47

Abstract: A method for controlling an EGR system includes determining whether diagnosis conditions for an EGR cooler are satisfied while the EGR system operates. The EGR system is turned off when the diagnosis conditions for the EGR cooler are satisfied and a retard amount of ignition timing is larger than a first reference value. The EGR cooler is diagnosed base on a comparison result of the retard amount of the ignition timing and a second reference value while the EGR system is off.

Abstract translation: 一种用于控制EGR系统的方法包括在EGR系统工作时确定是否满足EGR冷却器的诊断条件。 当满足EGR冷却器的诊断条件并且点火正时的延迟量大于第一参考值时，EGR系统被关闭。 基于EGR系统关闭时点火正时的延迟量和第二参考值的比较结果来诊断EGR冷却器。