公开(公告)号：WO2015108541A1

公开(公告)日：2015-07-23

申请号：PCT/US2014/012195

申请日：2014-01-20

Applicant: CUMMINS INC.

Inventor： HAAS, Michael

IPC: F01N3/00

CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N11/00 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1812 ,  Y02T10/24

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.

Abstract translation: 排气后处理系统包括选择性催化还原（SCR）催化剂设置在内燃机的排气系统中。 还原剂注入器在SCR催化剂上游的位置与废气流相连。 控制器被配置为响应于NH 3滑移条件来确定NH3滑移条件和排气后处理系统的控制操作，以提高脱硝效率并减少NH3滑移。

公开(公告)号：WO2011112985A1

公开(公告)日：2011-09-15

申请号：PCT/US2011/028181

申请日：2011-03-11

Applicant: CUMMINS INC. ,  GEVECI, Mert ,  YEZERETS, Aleksey ,  CURRIER, Neal, W. ,  HAAS, Michael ,  OSBURN, Andrew, W.

Inventor： GEVECI, Mert ,  YEZERETS, Aleksey ,  CURRIER, Neal, W. ,  HAAS, Michael ,  OSBURN, Andrew, W.

IPC: F01N11/00

CPC classification number: F01N3/208 ,  F01N2550/05 ,  F01N2560/021 ,  F01N2610/02 ,  F01N2900/1602 ,  F01N2900/1621 ,  Y02T10/24

Abstract: A method includes determining whether selective catalytic reduction (SCR) test conditions are present, and in response to the SCR test conditions being present, operating an SCR aftertreatment system at a number of reduced ammonia to NOx ratio (ANR) operating points. The method further includes determining a deNO x efficiency value corresponding to each of the ANR operating points. The method further includes determining a reductant correction value in response to the deNO x efficiency values corresponding to each of the ANR operating points, and providing a reductant injection command in response to the reductant correction value.

Abstract translation: 一种方法包括确定是否存在选择性催化还原（SCR）测试条件，并且响应于存在的SCR测试条件，在降低的氨至NOx比（ANR）操作点的数量下操作SCR后处理系统。 该方法还包括确定对应于每个ANR工作点的脱硝效率值。 该方法还包括响应于与每个ANR工作点对应的脱硝效率值确定还原剂校正值，以及响应于还原剂校正值提供还原剂注入命令。

公开(公告)号：WO2019094180A3

公开(公告)日：2019-05-16

申请号：PCT/US2018/056897

申请日：2018-10-22

Applicant: CUMMINS INC.

Inventor： DIWAKER ABRAHAM, Jeffrey David Selwyn ,  VEMURI, Ananth ,  HAAS, Michael ,  KIDD, Adam W.

IPC: F01N9/00 ,  F01N3/00 ,  F01N3/021 ,  F01N3/023 ,  F01N11/00 ,  F01N13/00 ,  F02D41/00

Abstract: A method, system, and apparatus relating to operating an internal combustion engine include steps or features for determining a performance threshold of a particulate filter disposed in an exhaust gas flow of the engine having a set time interval between regeneration events of the particulate filter; determining a rate at which the particulate filter is reaching the performance threshold; and controlling an exhaust gas characteristic to control the rate so that the performance threshold is reached at or just before an end of the time interval. In an embodiment, there are steps or features for interpreting a filter condition of the particulate filter; determining a particulate matter load rate of the filter as a function of the condition; determining a limit of an exhaust gas characteristic based on the load rate; and controlling engine operation to control the exhaust gas characteristic to satisfy the limit.

公开(公告)号：WO2021061603A1

公开(公告)日：2021-04-01

申请号：PCT/US2020/051926

申请日：2020-09-22

Applicant: CUMMINS INC.

Inventor： GUMASTE, Rohan, Achyut ,  HAAS, Michael ,  HEMAMI, Tara, L. ,  MOHAN, Krithika ,  PERKS, Veronica, Susan ,  SAURABH, Shakti ,  DIWAKAR ABRAHAM, Jeffrey David Selwyn

IPC: G06F19/00 ,  H01L21/00

Abstract: A computing system is structured to receive operating data provided by a telematics circuit associated with a remote engine. The operating data comprises information provided by at least one sensor and/or at least one actuation command. The computing system is structured to determine, based on the operating data, a plurality of field-replaceable units (FRUs) associated with the operating data. The computing system is structured to generate a computer-based simulation corresponding to at least one degradation level for an FRU from the plurality of FRUs, identify a most probable failure, and rank the computer-based simulations across the plurality of FRUs. The computing system is structured to generate an electronic notification comprising data associated with the most probable failure and transmit the electronic notification to a computing device.

公开(公告)号：WO2017087402A1

公开(公告)日：2017-05-26

申请号：PCT/US2016/062065

申请日：2016-11-15

Applicant: CUMMINS, INC.

Inventor： KIDD, Adam W. ,  HAAS, Michael

IPC: F01N3/20 ,  F01N9/00 ,  F01N11/00

CPC classification number: F01N11/00 ,  F01N3/021 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2570/18 ,  Y02T10/47

Abstract: An apparatus includes an exhaust analysis circuit and a sensor diagnostics circuit. The exhaust analysis circuit is structured to interpret first oxygen data acquired by a first sensor indicative of a first amount of oxygen in an exhaust flow at a first location along an exhaust aftertreatment system, and interpret second oxygen data acquired by a second sensor indicative of a second amount of oxygen in the exhaust flow at a second location along the exhaust aftertreatment system. The sensor diagnostic circuit is structured to determine at least one of the first sensor and the second sensor are faulty based on the first amount of oxygen and the second amount of oxygen differing more than a threshold value.

Abstract translation: 一种装置包括排气分析电路和传感器诊断电路。 排气分析电路被构造成解释由第一传感器获取的第一氧气数据，该第一氧气数据指示沿着排气后处理系统的第一位置处的排气流中的第一氧气量，并且解释由第二传感器获取的指示 在沿排气后处理系统的第二位置处的排气流中的第二量的氧气。 传感器诊断电路构造成基于第一氧气量和第二氧气量不同于阈值来确定第一传感器和第二传感器中的至少一个是有故障的。

公开(公告)号：WO2015123411A1

公开(公告)日：2015-08-20

申请号：PCT/US2015/015605

申请日：2015-02-12

Applicant: CUMMINS INC.

Inventor： HSIEH, Ming-Feng ,  HAAS, Michael ,  GARIMELLA, Phanindra, V.

IPC: F01N11/00

CPC classification number: F01N3/208 ,  B01D53/9418 ,  B01D53/9495 ,  B01D2251/2062 ,  F01N3/106 ,  F01N11/00 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2610/146 ,  Y02T10/24 ,  Y02T10/47

Abstract: 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, and first and second NOx sensors provide NOx measurements upstream of and downstream of the SCR catalyst, respectively. A system and method is disclosed for operating the system to determine a NOx amount and/or a NH3 slip amount downstream of the SCR catalyst by decoupling NOx-NH3 measurements from the output of the second NOx sensor to provide control of the reductant injection amount.

Abstract translation: 选择性催化还原（SCR）催化剂设置在内燃机的排气系统中。 还原剂喷射器在SCR催化剂上游的位置与废气流相连，第一和第二NOx传感器分别在SCR催化剂的上游和下游提供NOx测量。 公开了一种系统和方法，用于操作该系统以通过从第二NOx传感器的输出中分离NOx-NH 3测量值来确定还原剂喷射量的控制来确定SCR催化剂下游的NOx量和/或NH3滑移量。

公开(公告)号：WO2012151442A1

公开(公告)日：2012-11-08

申请号：PCT/US2012/036392

申请日：2012-05-03

Applicant: CUMMINS INC. ,  GEVECI, Mert ,  OSBURN, Andrew ,  HAAS, Michael

Inventor： GEVECI, Mert ,  OSBURN, Andrew ,  HAAS, Michael

IPC: F01N11/00

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 NO x 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 δNO x /δANR, the δNO x /δANR determined according to the NO x 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。 该方法包括操作极值寻求控制器以确定对应于dNOx / dANR的预定斜率的第一试剂注入量，根据NOx传感器确定的dNOx / dANR，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。

公开(公告)号：WO2019094180A2

公开(公告)日：2019-05-16

申请号：PCT/US2018/056897

申请日：2018-10-22

Applicant: CUMMINS INC.

Inventor： DIWAKER ABRAHAM, Jeffrey David Selwyn ,  VEMURI, Ananth ,  HAAS, Michael ,  KIDD, Adam W.

IPC: F02B75/12

Abstract: A method, system, and apparatus relating to operating an internal combustion engine include steps or features for determining a performance threshold of a particulate filter disposed in an exhaust gas flow of the engine having a set time interval between regeneration events of the particulate filter; determining a rate at which the particulate filter is reaching the performance threshold; and controlling an exhaust gas characteristic to control the rate so that the performance threshold is reached at or just before an end of the time interval. In an embodiment, there are steps or features for interpreting a filter condition of the particulate filter; determining a particulate matter load rate of the filter as a function of the condition; determining a limit of an exhaust gas characteristic based on the load rate; and controlling engine operation to control the exhaust gas characteristic to satisfy the limit.

公开(公告)号：WO2018183268A1

公开(公告)日：2018-10-04

申请号：PCT/US2018/024481

申请日：2018-03-27

Applicant: CUMMINS INC.

Inventor： HENRICHSEN, Lars Krister ,  CHILUMUKURU, Krishna P. ,  HAAS, Michael ,  ANDERSON, Matthew L.

IPC: B01D53/94 ,  B01J20/28 ,  F01N3/28

CPC classification number: F01N3/0814 ,  B01D53/94 ,  B01D53/9431 ,  B01D53/9477 ,  B01D2255/91 ,  F01N3/0842 ,  F01N3/2066 ,  F01N3/281 ,  F01N13/0097 ,  F01N2250/12 ,  F01N2370/02 ,  F01N2610/02 ,  F01N2610/1453

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.

公开(公告)号：WO2017127283A1

公开(公告)日：2017-07-27

申请号：PCT/US2017/013167

申请日：2017-01-12

Applicant: CUMMINS, INC.

Inventor： CHUNODKAR, Apurva Arvind ,  HAAS, Michael ,  KUKREJA, Astha ,  SUNDAR, Bharath

IPC: F01N11/00

CPC classification number: F01N11/00 ,  F01N3/021 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/208 ,  F01N2550/14 ,  F01N2610/02 ,  F01N2610/144 ,  F01N2900/1812 ,  Y02T10/24 ,  Y02T10/47

Abstract: An apparatus includes a pump, a delivery mechanism in fluid communication with the pump, and a controller communicatively coupled to the pump and the delivery mechanism. The controller is structured to interpret, via a pump diagnostic circuit, first and second pump parameters indicative of first and second pump rates, interpret, via a dosing diagnostic circuit, first and second dosing parameters indicative of at least one of (i) first and second reductant flows or (ii) first and second injector characteristics, determine, via a delivery diagnostic circuit, a delivery status based, at least in part, on the interpretation of the first and second pump parameters and the first and second dosing parameters, and generate, via the delivery diagnostic circuit, a status command indicative at least one of an under-restricted delivery mechanism or an over-restricted delivery mechanism in response to the determination of the delivery status.

Abstract translation: 装置包括泵，与泵流体连通的输送机构以及通信地联接到泵和输送机构的控制器。 控制器构造成经由泵诊断回路解释指示第一和第二泵送速率的第一和第二泵参数，经由定量给料诊断回路解释第一和第二给药参数，所述第一和第二给药参数指示（i）第一和第二给药参数中的至少一个 第二还原剂流或（ii）第一和第二喷射器特性，经由输送诊断回路至少部分地基于对第一和第二泵参数以及第一和第二给料参数的解释来确定输送状态，以及 响应于传送状态的确定，经由传送诊断电路生成指示限制不足的传送机制或限制过度的传送机制中的至少一个的状态命令。