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公开(公告)号：US10392991B2
公开(公告)日：2019-08-27
申请号：US15298992
申请日：2016-10-20
Applicant: Cummins Inc.
Inventor： Mert Geveci , Andrew W. Osburn
Abstract: An exemplary method includes determining an NH3 reference target in an exhaust conduit between a first SCR catalyst and a second SCR catalyst. The method includes determining a present amount of NH3 in the exhaust conduit between the first SCR catalyst and the second SCR catalyst, and determining an NH3 error term in response to the NH3 reference target and the present amount of NH3. The method further includes determining an amount of NOx downstream of the second SCR catalyst, and adjusting one of the NH3 reference target and a reductant doser command in response to the amount of NOx downstream of the second SCR catalyst. The method further includes providing a reductant doser command in response to the NH3 error term.
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公开(公告)号：US09909517B2
公开(公告)日：2018-03-06
申请号：US15358853
申请日：2016-11-22
Applicant: Cummins Inc.
Inventor： Govindarajan Kothandaraman , Vivek Anand Sujan , Abdul R. Ofoli , Mert Geveci
CPC classification number: F02D41/0235 , F01N3/2066 , F01N11/00 , F01N2550/02 , F01N2610/02 , F01N2900/0408 , F01N2900/0412 , F01N2900/1411 , F01N2900/1602 , F01N2900/1621 , F01N2900/1626 , F02D41/2416 , F02D41/2422 , F02D41/26 , F02D2200/0802 , F02D2200/101 , Y02T10/24 , Y02T10/47
Abstract: An electronic control system is adapted to control a system including an internal combustion engine and an exhaust aftertreatment system including an SCR catalyst. The electronic control system provides a first dynamically determined weighting factor in response to performing a selected one of a plurality of calculations, determines an operating mode of the engine in response to an engine load and an engine speed, selects one of a plurality of inputs in response to the operating mode of the engine to provide an interpolation weighting factor, the plurality of inputs including the first dynamically determined weighting factor and one or more predetermined weighting factors, utilizes the interpolation weighting factor to interpolate between a first set of combustion control data and a second set of combustion control data to determine a set of combustion control values, and controls operation of the engine using the set of combustion control values.
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3.发明申请DIFFERENTIAL NH3 AND NOX MEASUREMENT USING AN EXHAUST GAS SENSOR COUPLED WITH A MICRO SCR CATALYST 有权使用与微型SCR催化剂相连的排气传感器进行差分NH3和NOX测量公开(公告)号：US20130108528A1
公开(公告)日：2013-05-02
申请号：US13664515
申请日：2012-10-31
Applicant: Cummins Inc.
Inventor： Mert Geveci , Aleksey Yezerets
IPC: B01D53/94
CPC classification number: B01D53/9431 , B01D53/9495 , B01D2255/904 , F01N3/2066 , F01N3/208 , F01N11/00 , F01N13/0093 , F01N2410/00 , F01N2560/021 , F01N2900/0416 , Y02T10/24 , Y02T10/47
Abstract: Systems and methods are disclosed that include an exhaust gas stream produced by an engine and an aftertreatment system including an SCR catalyst element receiving at least a portion of the exhaust gas stream. An exhaust outlet flow path has an inlet fluidly coupled to the exhaust gas stream at a position downstream of at least a portion of the SCR catalyst element that bypasses at least a portion of exhaust gas stream to provide for compositional measurement of the exhaust gas with a compositional sensor located downstream of a diagnostic catalyst positioned in the exhaust outlet flow path.
Abstract translation: 公开了包括由发动机产生的废气流和包括接收至少一部分废气流的SCR催化剂元件的后处理系统的系统和方法。 排气出口流动路径具有流体耦合到排气流的入口，其在SCR催化剂元件的至少一部分的下游的位置处旁通至少一部分废气流，以提供废气的成分测量 组成传感器位于位于排气出口流动路径中的诊断催化剂的下游。
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4.发明授权Systems and methods for NOx reduction and aftertreatment control using passive NOx adsorption 有权使用无源NOx吸附的NOx还原和后处理控制系统和方法公开(公告)号：US09512761B2
公开(公告)日：2016-12-06
申请号：US14453169
申请日：2014-08-06
Applicant: Cummins Inc.
Inventor： Richard J. Ancimer , Mert Geveci , Michael Haas , Alok Joshi , Krishna Kamasamudram
CPC classification number: F01N3/2066 , F01N3/035 , F01N3/103 , F01N3/106 , F01N3/2006 , F01N3/2033 , F01N13/009 , F01N2610/02 , Y02T10/24 , Y02T10/26
Abstract: Systems and methods for managing aftertreatment systems that include passive NOx adsorption devices and SCR catalyst elements are disclosed. Temperature generation devices upstream of the passive NOx adsorption devices facilitate control of the aftertreatment systems to improve fuel economy and NOx conversion efficiency.
Abstract translation: 公开了用于管理包括被动式NOx吸附装置和SCR催化剂元件的后处理系统的系统和方法。 无源NOx吸附装置上游的温度发生装置便于后处理系统的控制，以提高燃料经济性和NOx转化效率。
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5.发明授权Method and algorithm for diagnosing an NH3 sensor in an SCR system using measurements from two channels of the sensor 有权用于使用来自传感器的两个通道的测量来诊断SCR系统中的NH 3传感器的方法和算法公开(公告)号：US09482137B2
公开(公告)日：2016-11-01
申请号：US13692026
申请日：2012-12-03
Applicant: Cummins Inc.
Inventor： Feng Liu , Mert Geveci
CPC classification number: F01N11/007 , F01N3/106 , F01N3/2066 , F01N11/00 , F01N13/0093 , F01N2550/02 , F01N2560/021 , F01N2560/026 , F01N2560/14 , F02D41/1441 , F02D41/146 , F02D41/222 , F02D2041/1468 , G01M15/102 , Y02T10/24 , Y02T10/40 , Y02T10/47
Abstract: A system includes an internal combustion engine providing exhaust gases to an exhaust conduit, an aftertreatment system having an SCR catalyst component and disposed in the exhaust conduit. The system further includes a first NH3 sensing element preferentially sensitive to NH3 and a second NH3 sensing element preferentially sensitive to NO2 in the exhaust conduit. Both NH3 sensing elements are positioned downstream of the SCR catalyst component. The system includes a controller having a test conditions module that determines whether an NO2 concentration downstream of the SCR catalyst component is below a threshold value, an NH3 diagnostic module that provides a detection comparison value in response to the NO2 concentration, a first signal from the first NH3 sensing element, and a second signal from the second NH3 sensing element. The controller includes a sensor condition module that provides an NH3 sensor condition value in response to the detection comparison value.
Abstract translation: 一种系统包括向排气管道提供废气的内燃机，具有SCR催化剂组分并设置在排气管道中的后处理系统。 该系统还包括对NH 3优先敏感的第一NH 3感测元件和在排气管道中对NO 2优先敏感的第二NH 3感测元件。 两个NH3感测元件位于SCR催化剂组分的下游。 该系统包括具有测定条件模块的控制器，该测试条件模块确定SCR催化剂组分下游的NO 2浓度是否低于阈值; NH3诊断模块，其响应于NO2浓度提供检测比较值， 第一NH 3感测元件和来自第二NH 3感测元件的第二信号。 控制器包括响应于检测比较值提供NH3传感器状态值的传感器状态模块。
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Patent Agency Ranking
6.发明授权公开(公告)号：US09103294B2
公开(公告)日：2015-08-11
申请号：US13652875
申请日：2012-10-16
Applicant: Cummins Inc.
Inventor： Vivek A. Sujan , Ashwin Vyas , Mert Geveci , Axel Otto zur Loye
CPC classification number: F02D41/1495 , F02D41/1454 , F02D41/182 , F02D41/2454
Abstract: Methods and systems are disclosed for fuel drift estimation and compensation using exhaust oxygen levels and fresh air flow measurements. An actual fueling to the engine cylinders is determined from the exhaust oxygen level and fresh air flow to the internal combustion engine. The actual fueling is compared to an expected fueling based on the fueling command provided to the internal combustion engine. The difference between the actual fueling and expected fueling is fuel drift error attributed to changes or drift in the fuel injection system and is used to correct or compensate future fueling commands for the fuel drift.
Abstract translation: 公开了使用排气氧水平和新鲜空气流量测量的燃料漂移估计和补偿的方法和系统。 对发动机气缸的实际加油由排气氧气水平和进入内燃机的新鲜空气流量确定。 基于提供给内燃机的燃料供给命令将实际的燃料加注与预期的燃料供给相比较。 实际加油和预期加油之间的差异是由燃料喷射系统中的变化或漂移引起的燃料漂移误差，并且用于校正或补偿未来的用于燃料漂移的加油命令。
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公开(公告)号：US08834821B2
公开(公告)日：2014-09-16
申请号：US14069639
申请日：2013-11-01
Applicant: Cummins Inc.
Inventor： Mert Geveci , Andrew Osburn , Michael Haas
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。 该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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8.发明申请公开(公告)号：US20130139788A1
公开(公告)日：2013-06-06
申请号：US13652875
申请日：2012-10-16
Applicant: Cummins Inc.
Inventor： Vivek A. Sujan , Ashwin Vyas , Mert Geveci , Axel Otto zur Loye
IPC: F02D41/18
CPC classification number: F02D41/1495 , F02D41/1454 , F02D41/182 , F02D41/2454
Abstract: Methods and systems are disclosed for fuel drift estimation and compensation using exhaust oxygen levels and fresh air flow measurements. An actual fueling to the engine cylinders is determined from the exhaust oxygen level and fresh air flow to the internal combustion engine. The actual fueling is compared to an expected fueling based on the fueling command provided to the internal combustion engine. The difference between the actual fueling and expected fueling is fuel drift error attributed to changes or drift in the fuel injection system and is used to correct or compensate future fueling commands for the fuel drift.
Abstract translation: 公开了使用排气氧水平和新鲜空气流量测量的燃料漂移估计和补偿的方法和系统。 对发动机气缸的实际加油由排气氧气水平和进入内燃机的新鲜空气流量确定。 基于提供给内燃机的燃料供给命令将实际的燃料加注与预期的燃料供给相比较。 实际加油和预期加油之间的差异是由燃料喷射系统中的变化或漂移引起的燃料漂移误差，并且用于校正或补偿未来的用于燃料漂移的加油命令。
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9.发明授权公开(公告)号：US09429062B2
公开(公告)日：2016-08-30
申请号：US14479643
申请日：2014-09-08
Applicant: Cummins Inc.
Inventor： Andrew W. Osburn , Feng Liu , Mert Geveci
CPC classification number: F01N11/00 , B01D53/9431 , B01D53/9495 , F01N3/103 , F01N3/2066 , F01N3/208 , F01N2560/021 , F01N2560/026 , F01N2900/0416 , Y02T10/24 , Y02T10/47
Abstract: An example method includes interpreting an NH3 composition value at a position upstream of a selective reduction catalyst (SCR) element fluidly disposed in the exhaust conduit of an engine, interpreting a NOx composition value at a position downstream of the SCR element, and determining an NH3 sensor rationality threshold in response to the upstream NH3 composition value. The method further includes determining an NH3 sensor health value as indicating a sensor failure in response to the downstream NOx composition value exceeding the NH3 sensor rationality threshold.
Abstract translation: 示例性方法包括解释在发动机的排气管道中流体设置的选择性还原催化剂（SCR）元件的上游位置处的NH 3组成值，解释在SCR元件下游的位置处的NOx组成值，以及确定NH 3 响应上游NH3组成值的传感器理性阈值。 该方法还包括根据超过NH3传感器合理性阈值的下游NOx组成值，确定NH3传感器健康值作为指示传感器故障。
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公开(公告)号：US09328674B2
公开(公告)日：2016-05-03
申请号：US14175258
申请日：2014-02-07
Applicant: Cummins Inc.
Inventor： Mert Geveci , Feng Liu , Andrew W. Osburn
CPC classification number: F02D29/02 , B60W10/06 , B60W20/00 , B60W20/16 , F02D41/0047 , F02D41/1463 , F02D41/2438 , F02D41/30 , F02D2200/0625 , Y10S903/902
Abstract: One illustrative embodiment is a method comprising operating an engine and an aftertreatment system by controlling a plurality of charge constituents provided the engine, iteratively perturbating one or more combustion inputs effective to vary operation of the engine, and determining fuel consumption and emissions information at the operating points effective to seek a weighted optimization of multiple parameters including fuel consumption and reductant consumption while also meeting a predetermined NOx emissions criterion. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the description and figures.
Abstract translation: 一个说明性实施例是一种方法，其包括通过控制多个电荷组分来操作发动机和后处理系统，所述发动机和后处理系统反复地扰动一个或多个燃烧输入，以有效地改变发动机的运行，以及确定在运行时的燃料消耗和排放信息 有效地寻求包括燃料消耗和还原剂消耗在内的多个参数的加权优化，同时满足预定的NOx排放标准。 其他实施例，形式，对象，特征，优点，方面和优点将从描述和附图中变得显而易见。
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