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公开(公告)号：US10598067B2
公开(公告)日：2020-03-24
申请号：US15826468
申请日：2017-11-29
发明人： Jin Woo Park , Ki Hyung Joo , Myung Jong Lee , Arun Palaniappan Muthukaruppan , Waldemar Josef Kansy , John Henry Kwee
摘要： Provided is an exhaust purification system that may include: a first catalyst installed on a rear exhaust pipe of an engine; a selective catalytic reduction (SCR) catalyst installed on the rear exhaust pipe of the first catalyst; a reducing agent injector which is installed on an exhaust pipe between the first catalyst and the SCR catalyst and configured to inject a reducing agent; and a controller configured to control an amount of reducing agent injected from the reducing agent injector. /The controller may calculate a total amount of ammonia adsorbed in the SCR catalyst, a required amount of reducing agent based on a total amount of ammonia adsorbed in the SCR catalyst, and the amount of nitrogen oxide introduced into the SCR catalyst, and then control a reducing agent injector to inject the required amount of reducing agent.
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公开(公告)号：US10718248B2
公开(公告)日：2020-07-21
申请号：US16204845
申请日：2018-11-29
发明人： Myung Jong Lee , Jin Woo Park , Ki Hyung Joo , Waldemar Josef Kansy , Arun Palaniappan Muthukaruppan
摘要： An exhaust gas purification system, which includes an engine and an exhaust pipe that is connected to an exhaust manifold of the engine, includes: a catalyst converter disposed at a rear side the engine on the exhaust pipe; a selective catalytic reduction on diesel particulate filter (SDPF) disposed at a rear side of the catalyst converter on the exhaust pipe; a reducing agent injector disposed between the catalyst converter and the SDPF on the exhaust pipe and injecting a reducing agent; and a controller controlling an amount of the reducing agent injected from the reducing agent injector.
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公开(公告)号：US10738678B2
公开(公告)日：2020-08-11
申请号：US16169112
申请日：2018-10-24
发明人： Ki Hyung Joo , Myung Jong Lee , Jin Woo Park , Arun Palaniappan Muthukaruppan , Waldemar Josef Kansy
摘要： A correction method of NOx purifying efficiency of SDPF includes: measuring a temperature change per unit time inside the SDPF, determining whether the temperature change per unit time inside the SDPF is below a first predetermined value, determining whether a difference between a maximum value and a minimum value of temperature of respective parts inside the SDPF is below a second predetermined value if the temperature change per unit time inside the SDPF is below the first predetermined value, determining whether a temperature inside the SDPF is in a low temperature region if the difference between the maximum value and the minimum value of temperature of the respective parts inside the SDPF is below the second predetermined value, and performing a low temperature region correction if the temperature inside the SDPF is in the low temperature region.
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公开(公告)号：US20190112953A1
公开(公告)日：2019-04-18
申请号：US15826468
申请日：2017-11-29
发明人： Jin Woo Park , Ki Hyung Joo , Myung Jong Lee , Arun Palaniappan Muthukaruppan , Waldemar Josef Kansy , John Henry Kwee
CPC分类号： F01N3/208 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N9/00 , F01N9/005 , F01N2610/02 , F01N2610/1453 , F01N2900/0406 , F01N2900/1616 , F01N2900/1622
摘要： Provided is an exhaust purification system that may include : a first catalyst installed on a rear exhaust pipe of an engine; a selective catalytic reduction (SCR) catalyst installed on the rear exhaust pipe of the first catalyst; a reducing agent injector which is installed on an exhaust pipe between the first catalyst and the SCR catalyst and configured to inject a reducing agent; and a controller configured to control an amount of reducing agent injected from the reducing agent injector. / The controller may calculate a total amount of ammonia adsorbed in the SCR catalyst, a required amount of reducing agent based on a total amount of ammonia adsorbed in the SCR catalyst, and the amount of nitrogen oxide introduced into the SCR catalyst, and then control a reducing agent injector to inject the required amount of reducing agent.
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公开(公告)号：US10287944B2
公开(公告)日：2019-05-14
申请号：US14955858
申请日：2015-12-01
申请人： HYUNDAI MOTOR COMPANY , FEV GMBH
发明人： Jin Ha Lee , Won Soon Park , Jin Woo Park , Ki Hyung Joo , Sera Lim , Thomas Wittka , Alexander Vovk , Joschka Schaub
摘要： A method of desulfurizing a lean NOx trap (LNT) of an exhaust purification system provided with the LNT and a selective catalytic reduction (SCR) catalyst includes determining whether a desulfurization feasibility condition of the LNT is satisfied, determining whether a desulfurization demand condition of the LNT is satisfied, and performing desulfurization of the LNT if both of the desulfurization feasibility condition of the LNT and the desulfurization demand condition of the LNT are satisfied, wherein the desulfurization of the LNT is performed by repeating a desulfurization lean mode and a desulfurization rich mode according to whether a mode switching condition due to a desulfurization temperature is satisfied and whether a mode switching condition due to generation of H2S is satisfied.
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公开(公告)号：US11543027B1
公开(公告)日：2023-01-03
申请号：US17692003
申请日：2022-03-10
发明人： Ki Hyung Joo , Young Ho Ko
IPC分类号： F16H61/688 , F16H61/00 , F16H61/28
摘要： A line pressure control method for a double clutch transmission (DCT) includes estimating a line pressure, which decreases with stoppage of an electric oil pump, based on a linear regression model using state variables of the DCT that are related to a line pressure change, and driving the electric oil pump when the line pressure estimated based on the linear regression model reaches a predetermined lower limit.
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公开(公告)号：US09869221B2
公开(公告)日：2018-01-16
申请号：US14940978
申请日：2015-11-13
发明人： Jin Ha Lee , Ki Hyung Joo , Won Soon Park , Young Su Kim , Jin Woo Park
CPC分类号： F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N3/208 , F01N3/2892 , F01N11/002 , F01N11/007 , F01N13/008 , F01N2560/026 , F01N2560/06 , F01N2610/02 , Y02A50/2325 , Y02T10/24
摘要： A catalytic converter for a vehicle includes an LNT converter into one side of which exhaust gas discharged from an engine flows and from the opposite side of which the exhaust gas. The LNT converter traps nitrogen oxide contained in the exhaust gas under a lean environment, desorbs the trapped nitrogen oxide under a rich environment, and reduces the nitrogen oxide contained in the exhaust gas or the desorbed nitrogen oxide. A connecting housing changes a direction of a path of the exhaust gas to a vertical direction, and allows a reducing agent to be injected to the exhaust gas. An SDPF converter changes a direction of a path of the exhaust gas to a direction opposite to a direction, captures particulate matters contained in the exhaust gas, and reduces nitrogen oxide contained in the exhaust gas using the injected reducing agent.
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