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41.发明授权公开(公告)号：US10480373B2
公开(公告)日：2019-11-19
申请号：US15187061
申请日：2016-06-20
Applicant: Cummins Inc.
Inventor： Michael Haas
Abstract: An exhaust aftertreatment system includes a selective catalytic reduction (SCR) catalyst is disposed in an exhaust gas system of an internal combustion engine. A reductant injector is coupled to the exhaust gas stream at a position upstream of the SCR catalyst. A controller is configured to determine an NH3 slip condition and control operation of the exhaust aftertreatment system in response to the NH3 slip condition to improve deNOx efficiency and reduce NH3 slip.
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42.发明申请公开(公告)号：US20180258873A1
公开(公告)日：2018-09-13
申请号：US15456810
申请日：2017-03-13
Applicant: Cummins Inc.
Inventor： Michael Haas , Adam W. Kidd , Jeffrey David Selwyn Diwakar Abraham
Abstract: Systems and apparatuses include an apparatus including an aftertreatment system control circuit structured to receive a signal indicative of an exhaust gas characteristic from a sensor, determine an aftertreatment system characteristic based on the exhaust gas characteristic, determine an acceptable input value responsive to the aftertreatment system characteristic, and control at least one of a fuel system actuator and an air handling actuator to achieve or substantially achieve the acceptable input value.
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公开(公告)号：US20170051654A1
公开(公告)日：2017-02-23
申请号：US14830112
申请日：2015-08-19
Applicant: Cummins, Inc.
Inventor： Aniket Gupta , Michael J. Cunningham , Michael Haas , Govindarajan Kothandaraman
CPC classification number: F01N3/035 , F01N3/0835 , F01N3/0842 , F01N3/103 , F01N3/2066 , F01N11/00 , F01N13/0093 , F01N2550/02 , F01N2560/021 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2900/1402 , F01N2900/1616 , Y02T10/24 , Y02T10/47
Abstract: An apparatus includes a nitrogen oxide (NOx) module and a selective catalytic reduction (SCR) diagnostic module. The NOx module is in exhaust gas communication with an exhaust flow of an exhaust aftertreatment system from an engine. The NOx module is structured to interpret NOx data indicative of an amount of NOx exiting the engine and an amount of NOx exiting the exhaust aftertreatment system, and determine a NOx conversion efficiency fault is present based on the amount of NOx exiting the engine and the amount of NOx exiting the exhaust aftertreatment system. The SCR diagnostic module is structured to determine at least one of a SCR catalyst and a diesel particulate filter including a coating of a SCR reaction catalyst (DPF-SCR) are responsible for the NOx conversion efficiency fault based on at least one of a reductant slip amount and a NOx conversion value across at least one of the SCR catalyst and the DPF-SCR.
Abstract translation: 一种装置包括氮氧化物（NOx）模块和选择性催化还原（SCR）诊断模块。 NOx模块与来自发动机的废气后处理系统的废气排气连通。 NOx模块被构造为解释表示从发动机排出的NOx的量的NO x数据和排出后处理系统的NOx的量，并且基于从发动机排出的NOx的量和数量来确定NOx转化效率的故障 的NOx排出后处理系统。 SCR诊断模块被构造成确定包括SCR反应催化剂（DPF-SCR）的涂层的SCR催化剂和柴油颗粒过滤器中的至少一个基于还原剂滑移中的至少一种负责NOx转化效率故障 数量和跨越SCR催化剂和DPF-SCR中的至少一个的NOx转化值。
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公开(公告)号：US20140056790A1
公开(公告)日：2014-02-27
申请号：US14069639
申请日：2013-11-01
Applicant: Cummins Inc.
Inventor： Mert Geveci , Andrew Osburn , Michael Haas
IPC: B01D53/94
CPC classification number: B01D53/9495 , F01N3/208 , F01N9/00 , F01N2560/026 , F01N2900/1402 , F01N2900/1806 , Y02T10/24 , Y02T10/47
Abstract: A method includes providing: a selective catalytic reduction (SCR) catalyst disposed in an exhaust gas stream of an internal combustion engine, a reagent injector operationally coupled to the exhaust gas stream at a position upstream of the SCR catalyst, and a NOx sensor coupled to the exhaust gas stream at a position downstream of at least a first portion of the SCR catalyst. The method includes operating an extremum seeking controller to determine a first reagent injection amount corresponding to a predetermined slope of δNOx/δANR, the δNOx/δANR determined according to the NOx sensor, providing a reagent injection command in response to the first reagent injection amount, and injecting an amount of the reagent in response to the reagent injection command.
Abstract translation: 一种方法包括提供：设置在内燃机的排气流中的选择性催化还原（SCR）催化剂，在SCR催化剂上游位置处与废气流动作耦合的试剂注入器，以及耦合到 所述废气流在所述SCR催化剂的至少第一部分的下游位置处。 所述方法包括操作极值寻求控制器以确定对应于ΔNOx/δANR的预定斜率的第一试剂注入量，根据NOx传感器确定的ΔNOx/δANR，响应于第一试剂注入量提供试剂注入命令， 以及响应于试剂注入命令注入一定量的试剂。
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公开(公告)号：US12241398B2
公开(公告)日：2025-03-04
申请号：US18268054
申请日：2021-12-17
Applicant: Cummins Inc.
Inventor： Michael Haas , Adam W. Kidd , Oxford Peng , Shahidur M. Rahman , Ananth Vemuri , Christophe Tricaud , Easwar Yarrabikki
Abstract: A system includes an aftertreatment system and a controller coupled to the aftertreatment system. The controller is configured to generate a spatially resolved model of a catalyst of the aftertreatment system. The controller is further configured to adjust the spatially resolved model based on one or more sensed values from at least one sensor upstream of the one or more portions and at least one sensor downstream of the one or more portions.
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Patent Agency Ranking
公开(公告)号：US11454180B1
公开(公告)日：2022-09-27
申请号：US17350611
申请日：2021-06-17
Applicant: Cummins Inc.
Inventor： Jason W. Mackey , Srikanth Aravamuthan , Michael Haas
IPC: F02D41/00 , F02M26/22 , F02M26/17 , F02M26/14 , F02B37/24 , F01N13/10 , F02M35/10 , F02M26/38 , F02M26/05 , F02M26/42 , F02M26/09 , F02M26/25
Abstract: A system and method of exhaust gas recirculation (EGR) in an internal combustion engine are provided. The EGR system includes a first EGR flow path and a second EGR flow path independent of the first EGR flow path that are each configured to recirculate high pressure exhaust from the exhaust system back to the engine intake system. The system includes a controller in operable communication with the EGR system configured to selectively control an amount of EGR flow through at least one of the first and second EGR flow paths.
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公开(公告)号：US11421572B2
公开(公告)日：2022-08-23
申请号：US17128474
申请日：2020-12-21
Applicant: Cummins Inc.
Inventor： Rohan A. Siddhanthi , Neal W. Wallace , Michael Haas , Michael J. Ruth , Krishna Pradeep Chilumukuru , Shirish S. Punde
Abstract: An exhaust gas aftertreatment system for an internal combustion engine includes an inlet conduit, a reductant decomposition chamber, a first selective catalytic reduction (SCR) catalyst member, a second SCR catalyst member, a mixing chamber, a particulate filter, a reductant delivery system, and a hydrocarbon delivery system. The inlet conduit is configured to receive exhaust gas from the internal combustion engine. The reductant decomposition chamber is fluidly coupled to the inlet conduit and configured to receive the exhaust gas from the inlet conduit. The first SCR catalyst member is fluidly coupled to the reductant decomposition chamber and configured to receive the exhaust gas from the reductant decomposition chamber. The second SCR catalyst member is fluidly coupled to the first SCR catalyst member and is configured to receive the exhaust gas from the first SCR catalyst member.
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公开(公告)号：US11377088B2
公开(公告)日：2022-07-05
申请号：US16371890
申请日：2019-04-01
Applicant: Cummins Inc.
Inventor： Jeffrey S. Rauch , Jennifer Kay Light-Holets , Michael Haas
Abstract: Systems and methods to control operation of a system based on aftertreatment interaction include a controller structured to receive one or more parameters associated with an exhaust aftertreatment system of an electric vehicle, where the one or more parameters are associated with an aftertreatment event associated with the aftertreatment system, determine an operation state of the system based on the one or more parameters, and generate a command structured to adjust operation of the system responsive to the determination of the operation state.
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公开(公告)号：US20210277815A1
公开(公告)日：2021-09-09
申请号：US16497438
申请日：2018-03-27
Applicant: CUMMINS INC.
Inventor： Lars Krister Henrichsen , Krishna P. Chliumukuru , Michael Haas , Mathew L. Anderson
Abstract: An exhaust aftertreatment device includes a housing defining an inlet and an outlet. A plurality of first substrate layers are positioned within the housing in fluid receiving communication with the inlet. The plurality of first substrate layers define a first flow direction, and the plurality of first substrate layers comprise a passive NOx adsorber washcoat. A plurality of second substrate layers are positioned within the housing with the first and second substrate layers being layered in alternating order. The plurality of second substrate layers define a second flow direction perpendicular to the first flow direction, and the plurality of second substrate layers comprise a selective catalytic reduction washcoat. A connecting passage is in fluid receiving communication with the plurality of first substrate layers and in fluid providing communication with the plurality of second substrate layers.
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公开(公告)号：US20200095916A1
公开(公告)日：2020-03-26
申请号：US16138453
申请日：2018-09-21
Applicant: Cummins Inc.
Inventor： Michael Haas , Krishna Kamasamudrum , Ashok Kumar
Abstract: Systems, apparatuses, and methods include an upstream exhaust analysis circuit structured to determine a characteristic of an exhaust gas stream entering a nitrous oxide (NOx) storage catalyst; a prediction circuit structured to predict a downstream NOx concentration of an exhaust gas stream exiting the NOx storage catalyst based on a model of a NOx storage capacity or a dynamic response of the NOx storage catalyst; a downstream exhaust analysis circuit structured to determine a downstream NOx concentration of the exhaust gas stream exiting the NOx storage catalyst; and a comparison circuit structured to compare the predicted downstream NOx concentration to the determined downstream NOx concentration, and determine a health of the NOx storage catalyst based on the comparison.
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