Patents by Inventor Yeongseop Park

Yeongseop Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200240371
    Abstract: An engine system includes an engine with a combustion chamber, an intake line in which external air flows, and an exhaust line in which exhaust gas flows. A compressor is disposed in the intake line and rotated with a turbine to compress external air. A first recirculation line is branched off from the exhaust line and merged into the intake line. An EGR cooler cools exhaust gas flowing through the first recirculation line. A second recirculation line is branched off from the first recirculation line. A bypass line is branched off from the first recirculation line between an electric supercharger and the EGR cooler. A three-way valve is disposed where the bypass and first recirculation lines join. An intake valve is disposed in the intake line between where the first recirculation line and intake valve join and where the bypass line and intake valve join.
    Type: Application
    Filed: July 23, 2019
    Publication date: July 30, 2020
    Inventors: Heechang Oh, Yeongseop Park, Kwanhee Lee, Jonghyeok Lee, Jaegu Kang, Dong Hee Han, Seungwoo Hong
  • Publication number: 20200182203
    Abstract: An intake manifold according to an exemplary embodiment of the present invention may include a first intake manifold having a second intake pipe, a third intake pipe, and a first surge tank which temporarily stores intake air flowing through an intake line and distributes the intake air to the second intake pipe and the third intake pipe. A second intake manifold has a first intake pipe, a fourth intake pipe, and a second surge tank which temporarily stores intake air flowing through the intake line and distributes the intake air to the first intake pipe and the fourth intake pipe.
    Type: Application
    Filed: June 11, 2019
    Publication date: June 11, 2020
    Inventors: Seungwoo Hong, Dong Ho Chu, Dong Hee Han, Sangwook Kweon, Gil Hyun Ahn, Kwanhee Lee, Heechang Oh, Yeongseop Park, Jaegu Kang, Sung Bong Park, Dongjin Kang
  • Publication number: 20200182170
    Abstract: An engine may include an engine including combustion chambers, an intake line connected to the plurality of combustion chambers and through which outside air supplied to the combustion chamber flows, an intake manifold connected to an intake side of the combustion chamber, an exhaust manifold connected to an exhaust side of the combustion chamber, an exhaust line connected to the exhaust manifold, a turbocharger including a compressor mounted in the intake line, and a turbine rotating in association with the compressor and connected to the exhaust manifold and the exhaust line, a wastgate passage bypassing the turbine from the exhaust manifold, an electric supercharger connected to the compressor of the turbocharger by the intake line, a power device electrically-connected to the electric supercharger and configured for supplying electric power to the electric supercharger or absorbing and storing electric power generated by the electric supercharger, and a controller for controlling the operation of the powe
    Type: Application
    Filed: October 18, 2019
    Publication date: June 11, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Hee HAN, Dong Ho Chu, Kwanhee Lee, Yeongseop Park, Seungwoo Hong, Jaegu Kang, Jungjoo Park, Heechang Oh
  • Publication number: 20200088141
    Abstract: An engine system may include an engine including a plurality of combustion chambers for generating a driving force by combustion of fuel, an exhaust gas purification device mounted in an exhaust line through which exhaust gas discharged from the combustion chamber flows, an EGR gas collecting device configured for collecting a part of the exhaust gas from an exhaust manifold of the engine and supplying the exhaust gas to an intake manifold of the engine, and an EGR gas supply control valve provided between the EGR gas collecting device and the intake manifold and adapted to regulate a flow rate of EGR gas supplied to the intake manifold.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 19, 2020
    Applicants: Hyndai Motor Company, Kia Motors Corporation
    Inventors: Yeongseop PARK, Jong Il Park, Seungwoo Hong, Heechang Oh, Dong Hee Han, Hyungbok Lee
  • Patent number: 10590870
    Abstract: A method of calculating an exhaust gas recirculation (EGR) rate using combustion pressure of a cylinder of an internal combustion engine includes: detecting, by a pressure sensor, the combustion pressure of the cylinder in real time; calculating, by a processor, a data characteristic of a combustion pressure waveform per cycle through principal component analysis based on the detected combustion pressure of the cylinder; calculating, by the processor, a moment of the combustion pressure waveform per cycle by calculating a probability distribution based on the detected combustion pressure of the cylinder; calculating, by the processor, the EGR rate using the calculated data characteristic, the calculated moment, and engine operating conditions; and controlling, by the processor, the EGR rate based on the calculated EGR rate and a target EGR rate.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: March 17, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University
    Inventors: Seungwoo Hong, Hyungbok Lee, Yeongseop Park, Dong Hee Han, Haksu Kim, Myoungho Sunwoo, Donghyuk Jung
  • Publication number: 20200032726
    Abstract: A method of calculating an exhaust gas recirculation (EGR) rate using combustion pressure of a cylinder of an internal combustion engine includes: detecting, by a pressure sensor, the combustion pressure of the cylinder in real time; calculating, by a processor, a data characteristic of a combustion pressure waveform per cycle through principal component analysis based on the detected combustion pressure of the cylinder; calculating, by the processor, a moment of the combustion pressure waveform per cycle by calculating a probability distribution based on the detected combustion pressure of the cylinder; calculating, by the processor, the EGR rate using the calculated data characteristic, the calculated moment, and engine operating conditions; and controlling, by the processor, the EGR rate based on the calculated EGR rate and a target EGR rate.
    Type: Application
    Filed: October 25, 2018
    Publication date: January 30, 2020
    Inventors: Seungwoo HONG, Hyungbok Lee, Yeongseop Park, Dong Hee Han, Haksu Kim, Myoungho Sunwoo, Donghyuk Jung
  • Patent number: 10508578
    Abstract: An engine system includes: an engine including a plurality of combustion chambers generating driving torque by combustion of fuel; an exhaust gas purification apparatus installed at an exhaust line in which exhaust gas exhausted from the combustion chambers flows; a bypass line branched from the exhaust line at an upstream side of the exhaust gas purification apparatus and joining the exhaust line at a downstream side of the exhaust gas purification apparatus so that the exhaust gas flowing in the exhaust line bypasses the exhaust gas purification apparatus; and a bypass valve installed at the bypass line.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: December 17, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yeongseop Park, Dong Hee Han, Seungwoo Hong, Hyungbok Lee, Jong Il Park, Joowon Lee
  • Publication number: 20190128219
    Abstract: An engine system may include: an engine including cylinders that generate a driving torque by combusting fuel; a first intake manifold connected to an intake line through which flows intake air into some of the plurality of cylinders; a second intake manifold supplying the intake air to the other cylinders of the plurality of cylinders through the first intake manifold; a first exhaust manifold connected to some cylinders that are connected to the first intake manifold; a second exhaust manifold connected to some other cylinders that are connected to the second intake manifold; a recirculation line branched from the second exhaust manifold to be coupled to the second intake manifold; a recirculation inlet valve disposed at a point at which the recirculation line and the second exhaust manifold are joined; and a manifold connection valve disposed on an intake line between the first intake manifold and the second intake manifold.
    Type: Application
    Filed: December 5, 2017
    Publication date: May 2, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Hee Han, Jong Il Park, Hyun Jun Lim, Seungwoo Hong, Joowon Lee, Kwanhee Choi, Heechang Oh, Yeongseop Park, Dong.Ho Chu, Hyungbok Lee
  • Publication number: 20180334941
    Abstract: An engine system includes: an engine including a plurality of combustion chambers generating driving torque by combustion of fuel; an exhaust gas purification apparatus installed at an exhaust line in which exhaust gas exhausted from the combustion chambers flows; a bypass line branched from the exhaust line at an upstream side of the exhaust gas purification apparatus and joining the exhaust line at a downstream side of the exhaust gas purification apparatus so that the exhaust gas flowing in the exhaust line bypasses the exhaust gas purification apparatus; and a bypass valve installed at the bypass line.
    Type: Application
    Filed: October 30, 2017
    Publication date: November 22, 2018
    Inventors: Yeongseop PARK, Dong Hee HAN, Seungwoo HONG, Hyungbok LEE, Jong Il PARK, Joowon LEE
  • Patent number: 10113488
    Abstract: An apparatus for controlling fuel injection according to an exemplary embodiment of the present disclosure may include a driving information detector for detecting driving information including a fresh air amount flowing into an intake manifold through a throttle valve, a recirculation gas amount supplied to the intake manifold through an exhaust gas recirculation apparatus, a fuel vapor amount supplied to the intake manifold through a canister purge system, a gas amount supplied to a cylinder from the intake manifold, an internal pressure of the intake manifold, an internal temperature of the intake manifold, a pressure of a recirculation gas and a temperature of the recirculation gas; an injector for injecting fuel into the cylinder; and a controller for calculating gas amount supplied to the cylinder at a next intake stroke from the driving information and controlling fuel amount injected by the injector at the next intake stroke to be a target air-fuel ratio.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: October 30, 2018
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dong Hee Han, Seungwoo Hong, Yeongseop Park, Jong Il Park, Hyungbok Lee
  • Publication number: 20180163616
    Abstract: An engine system includes an engine including one or more cylinders for generating a driving torque, a plurality of intake lines for supplying external air to the one or more cylinders, and one or more electric superchargers disposed on, or in, the plurality of intake lines.
    Type: Application
    Filed: June 19, 2017
    Publication date: June 14, 2018
    Inventors: Dong Hee HAN, Jong Il PARK, Seungwoo HONG, Joowon LEE, Yeongseop PARK, Dong Ho CHU, Hyungbok LEE
  • Publication number: 20180163641
    Abstract: An apparatus for controlling fuel injection according to an exemplary embodiment of the present disclosure may include a driving information detector for detecting driving information including a fresh air amount flowing into an intake manifold through a throttle valve, a recirculation gas amount supplied to the intake manifold through an exhaust gas recirculation apparatus, a fuel vapor amount supplied to the intake manifold through a canister purge system, a gas amount supplied to a cylinder from the intake manifold, an internal pressure of the intake manifold, an internal temperature of the intake manifold, a pressure of a recirculation gas and a temperature of the recirculation gas; an injector for injecting fuel into the cylinder; and a controller for calculating gas amount supplied to the cylinder at a next intake stroke from the driving information and controlling fuel amount injected by the injector at the next intake stroke to be a target air-fuel ratio.
    Type: Application
    Filed: September 20, 2017
    Publication date: June 14, 2018
    Inventors: Dong Hee HAN, Seungwoo HONG, Yeongseop PARK, Jong Il PARK, Hyungbok LEE
  • Patent number: 9097215
    Abstract: An exhaust gas control method of an engine may include calculating a target mass flux of EGR gas by using air mass entering into a cylinder and target air mass supplied into the engine, calculating a target effective flow area (EFAd) of the EGR valve by using the target mass flux of the EGR gas and front/rear condition of the EGR valve, and calculating a valve opening rate of the EGR valve by using a predetermined curve fitting formula and the target effective flow area (EFAd).
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: August 4, 2015
    Assignees: HYUNDAI MOTOR COMPANY, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Kihoon Nam, Myoungho Sunwoo, Minkwang Lee, Yeongseop Park, Byounggul Oh
  • Patent number: 8738273
    Abstract: An EGR system control method of an engine may include calculating a target mass flux ({dot over (m)}egrd) of EGR gas flowing an EGR line, calculating an effective flowing area (EFA) of an EGR valve disposed on the EGR line, calculating an EGR flow sensitivity by dividing the target mass flux with the effective flowing area, and controlling a real opening rate of the EGR valve by applying the EGR flow sensitivity to a target opening rate of the EGR valve. Accordingly, a gain value is varied on a real time according to an effective flowing area of the EGR valve and a target mass flux of EGR gas such that real opening rate of an EGR valve is accurately and precisely controlled.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: May 27, 2014
    Assignees: Hyundai Motor Company, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Kihoon Nam, Myoungho Sunwoo, Minkwang Lee, Yeongseop Park, Byounggul Oh
  • Publication number: 20120138027
    Abstract: An EGR system control method of an engine may include calculating a target mass flux ({dot over (m)}egrd) of EGR gas flowing an EGR line, calculating an effective flowing area (EFA) of an EGR valve disposed on the EGR line, calculating an EGR flow sensitivity by dividing the target mass flux with the effective flowing area, and controlling a real opening rate of the EGR valve by applying the EGR flow sensitivity to a target opening rate of the EGR valve. Accordingly, a gain value is varied on a real time according to an effective flowing area of the EGR valve and a target mass flux of EGR gas such that real opening rate of an EGR valve is accurately and precisely controlled.
    Type: Application
    Filed: August 16, 2011
    Publication date: June 7, 2012
    Applicants: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), HYUNDAI MOTOR COMPANY
    Inventors: Kihoon NAM, Myoungho Sunwoo, Minkwang Lee, Yeongseop Park, Byounggul Oh
  • Publication number: 20120138028
    Abstract: An exhaust gas control method of an engine may include calculating a target mass flux of EGR gas by using air mass entering into a cylinder and target air mass supplied into the engine, calculating a target effective flow area (EFAd) of the EGR valve by using a target mass flux of the EGR gas and front/rear condition of the EGR valve, and calculating a valve opening rate of the EGR valve by using a predetermined curve fitting formula and the target effective flow area (EFAd). Accordingly, a target mass flux of EGR gas flowing an EGR line is calculated to be applied an opening rate of the EGR valve thereby such that a flux of the EGR gas precisely and quickly is control.
    Type: Application
    Filed: September 19, 2011
    Publication date: June 7, 2012
    Applicants: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Hyundai Motor Company
    Inventors: Kihoon Nam, Myoungho Sunwoo, Minkwang Lee, Yeongseop Park, Byounggul Oh