公开(公告)号：US09422847B2

公开(公告)日：2016-08-23

申请号：US14586156

申请日：2014-12-30

Applicant: Cummins, Inc.

Inventor： Andrew W. Osburn ,  Mark N. Bays ,  Krishna Kamasamudram ,  Aleksey Yezerets

IPC: F01N3/00 ,  F01N3/02 ,  F01N3/10 ,  F01N3/20 ,  F01N3/18

CPC classification number: F01N3/2006 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/20 ,  B01D2255/904 ,  B01D2255/915 ,  F01N3/035 ,  F01N3/10 ,  F01N3/103 ,  F01N3/106 ,  F01N3/18 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/1493 ,  F01N2900/1602 ,  F01N2900/1621 ,  G01M15/102 ,  Y02T10/24 ,  Y02T10/47

Abstract: An apparatus includes a dosing module structured to suspend dosing in an exhaust aftertreatment system; a selective catalytic reduction (SCR) inlet NOx module structured to interpret SCR inlet NOx data and an SCR inlet temperature; a SCR outlet NOx module structured to interpret SCR outlet NOx data; and a system diagnostic module structured to determine an efficiency of a SCR system based on the SCR inlet and outlet NOx data over a range of SCR temperatures, wherein the system diagnostic module is further structured to determine a state of at least one of a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and the SCR system based on the SCR efficiency at an elevated SCR temperature range and the SCR efficiency at a relatively lower SCR temperature range relative to a high SCR efficiency threshold and a low SCR efficiency threshold.

Abstract translation: 一种装置包括：配置模块，其被配置为在排气后处理系统中暂停配量; 构造成用于解释SCR入口NOx数据和SCR入口温度的选择性催化还原（SCR）入口NOx模块; 构造成用于解释SCR出口NOx数据的SCR出口NOx模块; 以及系统诊断模块，其被构造成基于SCR温度范围内的SCR入口和出口NOx数据来确定SCR系统的效率，其中所述系统诊断模块进一步被构造为确定柴油氧化物中的至少一种的状态 催化剂（DOC），柴油微粒过滤器（DPF）和基于SCR升高的SCR温度范围内的SCR效率的SCR系统，以及相对于高SCR效率阈值和低SCR效率阈值的SCR相对较低的SCR温度范围内的SCR效率 效率阈值。

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

IPC: F02D29/02 ,  B60W10/06 ,  B60W20/00 ,  F02D41/14 ,  F02D41/24 ,  F02D41/30 ,  F02D41/00

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。

公开(公告)号：US12095397B2

公开(公告)日：2024-09-17

申请号：US17709653

申请日：2022-03-31

Applicant: Cummins Inc.

Inventor： David B. Snyder ,  Andrew W. Osburn ,  Anant Puri

IPC: H02P29/60 ,  B60K6/28 ,  B60K11/02 ,  B60W20/00 ,  B60W50/00 ,  G07C5/08

CPC classification number: H02P29/60 ,  B60K6/28 ,  B60K11/02 ,  B60W20/00 ,  B60W50/00 ,  G07C5/0808 ,  B60W2050/0026 ,  B60W2510/081 ,  B60W2510/083 ,  B60W2510/087

Abstract: A controller for controlling flow of coolant to one or more components of a vehicle is disclosed. The controller determines respective amounts of heat expected to be rejected by the one or more components of the vehicle in a steady state of operation at current operating conditions of the one or more components, and generates a feedforward flow control signal based at least in part on the determined amounts of heat and a target temperature for the one or more components. The controller generates a controller output signal based at least in part on the feedforward control signal, and provides the controller output signal to the cooling system to control flow of coolant to the one or more components of the vehicle from the cooling system in accordance with the determined amounts of heat expected to be rejected by the one or more components of the vehicle.

公开(公告)号：US20170037758A1

公开(公告)日：2017-02-09

申请号：US15298992

申请日：2016-10-20

Applicant: Cummins Inc.

Inventor： Mert Geveci ,  Andrew W. Osburn

IPC: F01N3/20 ,  F01N11/00 ,  F01N13/00

CPC classification number: F01N3/208 ,  F01N9/00 ,  F01N11/007 ,  F01N13/0093 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0402 ,  F01N2900/0408 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1622 ,  F01N2900/1812 ,  Y02T10/24 ,  Y02T10/47

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.

Abstract translation: 示例性方法包括确定第一SCR催化剂和第二SCR催化剂之间的排气管道中的NH 3参考目标。 该方法包括确定第一SCR催化剂和第二SCR催化剂之间的排气管道中的NH 3的当量，并且响应于NH 3参考目标和当前的NH 3量确定NH 3误差项。 该方法还包括确定第二SCR催化剂下游的NOx的量，以及响应于第二SCR催化剂下游的NOx的量调节NH3参考目标和还原剂加料器命令之一。 该方法还包括响应于NH3误差项提供还原剂加料器命令。

公开(公告)号：US20160186630A1

公开(公告)日：2016-06-30

申请号：US14586174

申请日：2014-12-30

Applicant: Cummins, Inc.

Inventor： Andrew W. Osburn ,  Christopher Ferguson ,  Tony James Hall ,  Brian P. Liimatta

IPC: F01N3/20 ,  F01N3/08 ,  F01N11/00

CPC classification number: F01N11/00 ,  F01N3/2066 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2900/1402 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method for diagnosing NOx sensors in an exhaust aftertreatment system includes suspending reductant dosing in an exhaust aftertreatment system; purging a reductant deposit in a selective catalytic reduction (SCR) system of the exhaust aftertreatment system; adjusting at least one of an ignition timing and an engine speed for an engine to adjust an engine out nitrogen oxide (NOx) amount; receiving measured SCR inlet NOx data from a SCR inlet NOx sensor and measured SCR outlet NOx data from a SCR outlet NOx sensor; determining a phase shift between the measured SCR inlet and SCR outlet NOx data; applying the determined phase shift to the SCR outlet NOx data; and determining a diagnostic feature based on the SCR inlet NOx data and the phase shifted SCR outlet NOx data regarding a state of the SCR inlet and outlet NOx sensors.

Abstract translation: 用于诊断排气后处理系统中的NOx传感器的方法包括将还原剂剂量悬浮在排气后处理系统中; 在排气后处理系统的选择性催化还原（SCR）系统中清除还原剂沉积物; 调整发动机的点火正时和发动机转速中的至少一个以调节发动机的氮氧化物（NOx）量; 从SCR入口NOx传感器接收测量的SCR入口NOx数据，并从SCR出口NOx传感器测量SCR出口NOx数据; 确定测量的SCR入口和SCR出口NOx数据之间的相移; 将确定的相移施加到SCR出口NOx数据; 以及基于SCR入口NOx数据和关于SCR入口和出口NOx传感器的状态的相移SCR出口NOx数据来确定诊断特征。

公开(公告)号：US20150247435A1

公开(公告)日：2015-09-03

申请号：US14589339

申请日：2015-01-05

Applicant: Cummins Inc.

Inventor： Phanindra V. Garimella ,  Andrew W. Osburn

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/0404 ,  F01N2900/0601 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02T10/24

Abstract: Systems, methods and apparatus disclosed that include an internal combustion engine and an exhaust system that includes an exhaust aftertreatment system with an SCR catalyst. A NOx sensor downstream of the SCR catalyst is provided along with techniques for estimating an amount of NOx and NH3 at the tailpipe to decouple the impact of cross-sensitivity of the NOx sensor to NOx and NH3. Feedback control of the reductant dosing amount based on these estimates is also provided.

Abstract translation: 公开了包括内燃机和排气系统的系统，方法和装置，其包括具有SCR催化剂的排气后处理系统。 提供SCR催化剂下游的NOx传感器以及用于估计尾管上的NOx和NH 3量的技术，以将NOx传感器的交叉敏感性对NOx和NH 3的影响解耦。 还提供了基于这些估计的还原剂给药量的反馈控制。

公开(公告)号：US20150226135A1

公开(公告)日：2015-08-13

申请号：US14175258

申请日：2014-02-07

Applicant: Cummins Inc.

Inventor： Mert Geveci ,  Feng Liu ,  Andrew W. Osburn

IPC: F02D29/02 ,  B60W20/00 ,  B60W10/06 ,  F02D41/30 ,  F02D41/00

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。