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公开(公告)号：US10815938B2
公开(公告)日：2020-10-27
申请号：US16197422
申请日：2018-11-21
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Choo Saeng Choi
Abstract: A method for diagnosing leakage of a fuel vapor dual purge system is provided. The method includes determining whether an operation region of a vehicle is an operation region in which a turbocharger is operated and adjusting a flow amount of intake air flowing into the turbocharger according to an operation region in which the turbocharger is operated. A hydrocarbon collecting amount of a canister connecting fuel vapor generated in the fuel tank is calculated and a flow amount of the fuel vapor passing first and second purge lines is adjusted. A leak of the fuel vapor is diagnosed in the first purge line and the second purge line.
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公开(公告)号：US10415516B2
公开(公告)日：2019-09-17
申请号：US15354248
申请日：2016-11-17
Applicant: HYUNDAI MOTOR COMPANY
Inventor： Han Sang Kim , Choo Saeng Choi , Seong Sik Kim , Bonghoon Han , Jungjoo Park , Wootae Kim
Abstract: An engine system may include: an engine including a plurality of combustion chambers generating driving torque by burning fuel; an intake line through which fresh air flows into the combustion chambers; an intake manifold for distributing fresh air supplied by the intake line to the combustion chambers; an exhaust line in which exhaust gas exhausted from the combustion chambers flows; a recirculation line branched from the exhaust line and joined to the intake line; a connection pipe disposed at a portion where the recirculation line and the intake line are joined; and a water line connecting the connection pipe and the intake manifold. Condensate water generated at the connection pipe flows in the water line.
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公开(公告)号：US10345184B2
公开(公告)日：2019-07-09
申请号：US15376411
申请日：2016-12-12
Applicant: Hyundai Motor Company
Inventor： Choo Saeng Choi
Abstract: An apparatus for diagnosing a failure of a sensor may include an engine; an intake manifold; a turbocharger including a turbine rotated by exhaust gas of the combustion chamber and a compressor provided at the intake line, rotated in connection with the turbine, and compressing external air; a map sensor measuring a pressure of a front end portion of the compressor; a differential pressure sensor measuring a differential pressure of front and rear end portions of an EGR valve provided at an EGR apparatus; an operation information detecting device measuring operation information including an engine speed and a load; and a controller determining whether an exhaust gas pressure is constant from the operation information and comparing a change amount of the differential pressure sensor signal and a change amount of the map sensor signal in the condition that the exhaust gas pressure is constant to diagnose a failure of the differential pressure sensor.
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公开(公告)号：US10167792B2
公开(公告)日：2019-01-01
申请号：US15374753
申请日：2016-12-09
Applicant: HYUNDAI MOTOR COMPANY
Inventor： Choo Saeng Choi
Abstract: An engine system includes an intake line, an exhaust line, an exhaust gas recirculation (EGR) system, a turbocharger including a turbine provided in the exhaust line, and a compressor provided in the intake line, wherein the compressor compresses outside air, an intake bypass line which branches off from the intake line at a rear end of the compressor and merges into the intake line at the front end of the compressor, a recirculation valve installed at a point at which the intake bypass line and the intake line merge together, and a controller which controls operations of opening and closing the recirculation valve so that a portion of the intake gas compressed by the compressor is supplied into the intake line at the front end of the compressor through the intake bypass line, or the intake gas is supplied into the combustion chamber through the intake bypass line.
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公开(公告)号：US10125704B2
公开(公告)日：2018-11-13
申请号：US15376514
申请日：2016-12-12
Applicant: Hyundai Motor Company
Inventor： Choo Saeng Choi
Abstract: An engine system having an ERG apparatus may include an engine including a plurality of combustion chambers generating a driving torque by combustion of a fuel; an intake line inflowing an intake gas supplied to the combustion chamber; an exhaust line flowing an exhaust gas exhausted from the combustion chamber; a turbocharger including a turbine provided at the exhaust line and rotated by the exhaust gas exhausted from the combustion chamber and a compressor provided at the intake line, rotated in connection with the turbine, and compressing external air; and an EGR apparatus including a recirculation line branched from the exhaust line and joined to the intake line, a flow rate controller mounted at the recirculation line and measuring and controlling an amount of recirculation gas, and a pressure sensor mounted at the recirculation line to measure a pressure of the recirculation gas.
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Patent Agency Ranking
公开(公告)号：US10090613B2
公开(公告)日：2018-10-02
申请号：US15714663
申请日：2017-09-25
Inventor： Choo Saeng Choi , Minho Lee , Hideto Nakamura
IPC: H01R13/58 , H01R13/518 , H01R13/533 , H01R13/514
Abstract: A connector device includes one or more terminal fittings connected to a wire, a plurality of connectors configured to be fitted into a mating connector by accommodating the one or more terminal fittings, and a holder for holding the plurality of connectors side by side, wherein the holder includes a wire cover portion surrounding the wire drawn out from the plurality of connectors, wherein the wire cover portion includes a contact piece for contacting the drawn wire to suppress a movement of the drawn wire.
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17.发明授权公开(公告)号：US11009426B2
公开(公告)日：2021-05-18
申请号：US16171143
申请日：2018-10-25
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION
Inventor： Sang Bong Han , Choo Saeng Choi , Sang Suk Lee
Abstract: An oil pressure switch, which is connected in an oil path of a piston oil cooling jet to diagnose oil pressure, includes an upper body and a lower body, in which a plunger vertically moves according to oil pressure; a fixing plate that is disposed between the upper body and the lower body; a moving plate that selectively contacts a fixing plate according to movement of the plunger; a spring that generates an elastic force in a direction in which the moving plate selectively contacts the fixing plate; an output terminal that outputs an output signal according to contact between the moving plate and the fixing plate; and a parallel resistor that is electrically connected with the output terminal and electrically connected with a control resistor of a controller.
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公开(公告)号：US10533524B2
公开(公告)日：2020-01-14
申请号：US15378630
申请日：2016-12-14
Applicant: HYUNDAI MOTOR COMPANY
Inventor： Choo Saeng Choi , Dong Hee Han
Abstract: An apparatus for purging fuel vapor includes: a turbocharger; a recirculation valve; a canister connected with a fuel tank through a vapor line and collecting fuel vapor of fuel stored in the fuel tank; a purge control solenoid valve installed in a main purge line connected with the canister and selectively blocking the fuel vapor collected in the canister; a first check valve; a second check valve; and a differential pressure creating valve installed in the intake line at the upstream portion of the compressor, and creating negative pressure.
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公开(公告)号：US20200003164A1
公开(公告)日：2020-01-02
申请号：US16197422
申请日：2018-11-21
Applicant: Hyundai Motor Company , Kia Motors Corporation
Inventor： Choo Saeng Choi
Abstract: A method for diagnosing leakage of a fuel vapor dual purge system is provided. The method includes determining whether an operation region of a vehicle is an operation region in which a turbocharger is operated and adjusting a flow amount of intake air flowing into the turbocharger according to an operation region in which the turbocharger is operated. A hydrocarbon collecting amount of a canister connecting fuel vapor generated in the fuel tank is calculated and a flow amount of the fuel vapor passing first and second purge lines is adjusted. A leak of the fuel vapor is diagnosed in the first purge line and the second purge line.
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公开(公告)号：US10240540B2
公开(公告)日：2019-03-26
申请号：US15374018
申请日：2016-12-09
Applicant: HYUNDAI MOTOR COMPANY
Inventor： Choo Saeng Choi
Abstract: An engine system includes: an intake line through which fresh air flows; an exhaust line through which exhaust gas flows; an exhaust gas recirculation (EGR) system which recirculates some of exhaust gas to a combustion chamber; a turbocharger having: a turbine that rotates by the exhaust gas; and a compressor rotating by the rotation of the turbine; an intercooler disposed in the intake line at a rear end of the compressor; an intake bypass line penetrating the intercooler from the intake line, adjusting the amount of intake gas to be supplied into the combustion chamber, and merging into the intake line at a front end of the compressor; a recirculation valve disposed in the intake bypass line; and a controller controlling opening and closing of the recirculation valve so that some of the intake gas is supplied into the intake line through the intake bypass line.
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