公开(公告)号：US08590290B2

公开(公告)日：2013-11-26

申请号：US12551747

申请日：2009-09-01

申请人： Aleksey Yezerets ,  Neal W. Currier ,  Zheng Liu ,  Joan M. Wills ,  Abdul R. Ofoli ,  Michael R. Haas ,  Andrew W. Osburn

发明人： Aleksey Yezerets ,  Neal W. Currier ,  Zheng Liu ,  Joan M. Wills ,  Abdul R. Ofoli ,  Michael R. Haas ,  Andrew W. Osburn

IPC分类号： F01N3/00

CPC分类号： F01N3/2066 ,  F01N11/00 ,  F01N2550/02 ,  F01N2550/05 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： One embodiment is a method including operating an SCR system at a plurality of commanded ammonia to NOx input ratios, providing a plurality of data indicating NOx output from the SCR system for the plurality of commanded ammonia to NOx input ratios, and evaluating the plurality of data to diagnose the SCR system. Additional embodiment are methods, systems, and apparatuses including SCR diagnostics. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.

摘要翻译： 一个实施例是一种方法，包括以多个指令氨操作SCR系统至NOx输入比，提供指示SCR系统的NOx输出的多个数据用于多个指令氨至NOx输入比，并且评估多个数据 诊断SCR系统。 附加实施例是包括SCR诊断的方法，系统和装置。 从以下说明和附图，其他实施例，形式，目的，特征，优点，方面和优点将变得显而易见。

公开(公告)号：US08281572B2

公开(公告)日：2012-10-09

申请号：US12433767

申请日：2009-04-30

申请人： John N. Chi ,  Joe V. Hill ,  Joan M. Wills ,  Lisa A. Farrell ,  Timothy R. Frazier ,  Hasan Mohammed

发明人： John N. Chi ,  Joe V. Hill ,  Joan M. Wills ,  Lisa A. Farrell ,  Timothy R. Frazier ,  Hasan Mohammed

IPC分类号： F01N3/00

CPC分类号： F01N11/00 ,  B01D53/86 ,  B01D2251/2067 ,  B01D2255/91 ,  B01D2258/012 ,  B01D2258/014 ,  B01D2259/455 ,  F01N3/106 ,  F01N3/208 ,  F01N9/005 ,  F01N2550/02 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1622 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： Various embodiments of an apparatus, system, and method are disclosed for controlling NOx conversion in a selective catalytic reduction (SCR) system. According to one representative embodiment, an apparatus includes a duty cycle factor module and a NOx conversion mode selection module. The duty cycle factor module is configured to determine a duty cycle factor of an internal combustion engine where the duty cycle factor represents predicted driving conditions of a vehicle in which the internal combustion engine is housed. The NOx conversion mode selection module is configured to command NOx conversion in the SCR system according to a first NOx conversion mode if the duty cycle factor is within a duty cycle factor range and according to a second NOx conversion mode if the duty cycle factor is not within the duty cycle factor range.

摘要翻译： 公开了用于控制选择性催化还原（SCR）系统中的NOx转化的装置，系统和方法的各种实施例。 根据一个代表性实施例，一种装置包括占空比因子模块和NOx转换模式选择模块。 占空比因子模块被配置为确定内燃机的占空比因子，其中占空比因子表示内燃机容纳的车辆的预测驾驶条件。 NOx转换模式选择模块被配置为如果占空比因子在占空比因子范围内并根据第二NOx转换模式，如果占空因数不是，则根据第一NOx转换模式来命令SCR系统中的NOx转换 在占空比范围内。

公开(公告)号：US20090272104A1

公开(公告)日：2009-11-05

申请号：US12112678

申请日：2008-04-30

申请人： Phanindra Garimella ,  Abdul R. Ofoli ,  Timothy R. Frazier ,  Joan M. Wills ,  John N. Chi ,  Weiwen Wang ,  Andrew Osburn

发明人： Phanindra Garimella ,  Abdul R. Ofoli ,  Timothy R. Frazier ,  Joan M. Wills ,  John N. Chi ,  Weiwen Wang ,  Andrew Osburn

IPC分类号： F01N9/00

CPC分类号： F01N3/208 ,  B01D53/9409 ,  B01D2251/2062 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2900/0408 ,  F01N2900/0411 ,  F01N2900/0412 ,  F01N2900/1622 ,  F02B37/00 ,  Y02A50/2344 ,  Y02T10/24

摘要： Various embodiments of an apparatus, system, and method are disclosed for reducing NOx emissions using ammonia storage on an SCR catalyst. For example, according to one representative embodiment, an apparatus for reducing NOx emissions in an engine exhaust includes a NOx reduction target module that is configured to determine a NOx reduction requirement. The apparatus also includes an ammonia storage module that is configured to determine an ammonia storage modifier. An ammonia target module of the apparatus is configured to determine an ammonia addition requirement. The ammonia target module is communicable in data receiving communication with the ammonia storage module to receive the ammonia storage modifier, which is added to the ammonia addition requirement. The apparatus also includes a reductant target module that is configured to determine a reductant injection requirement that includes an amount of reductant added to the exhaust gas stream to achieve the ammonia addition requirement.

摘要翻译： 公开了用于使用SCR催化剂上的氨储存来减少NOx排放的装置，系统和方法的各种实施例。 例如，根据一个代表性的实施例，用于减少发动机排气中的NOx排放的装置包括被配置为确定NOx降低要求的NOx还原目标模块。 该装置还包括氨储存模块，其被配置成确定氨贮存改性剂。 该装置的氨目标模块被配置成确定氨添加要求。 氨目标模块可在与氨储存模块进行数据接收通信中进行通信，以接收氨添加要求的氨存储改性剂。 该装置还包括还原剂目标模块，其被配置为确定还原剂注入要求，其包括添加到废气流中的还原剂的量以实现氨添加要求。

公开(公告)号：US20090272101A1

公开(公告)日：2009-11-05

申请号：US12112500

申请日：2008-04-30

申请人： Joan M. Wills ,  Phanindra Garimella ,  John N. Chi

发明人： Joan M. Wills ,  Phanindra Garimella ,  John N. Chi

IPC分类号： F01N3/20 ,  G05B21/00

CPC分类号： F01N3/208 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2258/012 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1616 ,  Y02T10/24

摘要： Various embodiments of an apparatus, system, and method are disclosed for reducing NOx emissions on an SCR catalyst. For example, according to one representative embodiment, an apparatus for reducing NOx emissions in an engine exhaust includes a NOx reduction target module that is configured to determine a NOx reduction requirement that includes an amount of NOx in the exhaust gas stream to be reduced on a selective catalytic reduction (SCR) catalyst. The apparatus also includes an ammonia target module that is configured to determine an ammonia addition requirement that includes an amount of ammonia added to the exhaust gas stream to achieve the NOx reduction requirement. The apparatus also includes a reductant target module that is configured to determine a reductant injection requirement that includes an amount of reductant added to the exhaust gas stream to achieve the ammonia addition requirement. The apparatus further includes a reductant limiting module that is configured to determine at least one reductant limiting condition and to limit the amount of reductant added in response to the reductant limiting condition.

摘要翻译： 公开了用于减少SCR催化剂上的NOx排放的设备，系统和方法的各种实施例。 例如，根据一个代表性的实施例，用于减少发动机排气中的NOx排放的装置包括NOx还原目标模块，其被配置为确定NOx还原要求，所述NOx还原要求包括在所述排气流中减少的NOx的量 选择性催化还原（SCR）催化剂。 该装置还包括氨目标模块，其被配置为确定包括添加到废气流中的氨的量以实现NOx降低要求的氨添加要求。 该装置还包括还原剂目标模块，其被配置为确定还原剂注入要求，其包括添加到废气流中的还原剂的量以实现氨添加要求。 该装置还包括还原剂限制模块，其被配置为确定至少一种还原剂限制条件并限制响应于还原剂限制条件而加入的还原剂的量。

公开(公告)号：US20090272099A1

公开(公告)日：2009-11-05

申请号：US12433600

申请日：2009-04-30

申请人： Phanindra Garimella ,  Joan M. Wills ,  John N. Chi ,  Neal W. Currier ,  Aleksey Yezerets

发明人： Phanindra Garimella ,  Joan M. Wills ,  John N. Chi ,  Neal W. Currier ,  Aleksey Yezerets

IPC分类号： F01N3/00 ,  F01N3/10 ,  F01N9/00

CPC分类号： F01N3/208 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24

摘要： According to one representative embodiment, an apparatus for determining the degradation of a selective catalytic reduction (SCR) catalyst of an engine exhaust aftertreatment system includes a system properties module configured to store at least one system dynamics property value of the exhaust system at a first time and receive the at least one system dynamics property value of the exhaust aftertreatment system at a second time subsequent to the first time. The apparatus also includes a system dynamics module configured to determine a storage capacity of the SCR catalyst based on a comparison between the at least one system dynamic property value at the first time and the at least one system dynamic property value at the second time. Additionally, the apparatus includes an SCR catalyst degradation factor module configured to determine an SCR catalyst degradation factor based at least partially on the storage capacity of the SCR catalyst.

摘要翻译： 根据一个代表性实施例，用于确定发动机排气后处理系统的选择性催化还原（SCR）催化剂的劣化的装置包括系统特性模块，其被配置为在第一时间存储排气系统的至少一个系统动力特性值 并且在第一次之后的第二时间接收排气后处理系统的至少一个系统动力特性值。 该装置还包括系统动力学模块，其被配置为基于第一时间的至少一个系统动态属性值与第二时间的至少一个系统动态属性值之间的比较来确定SCR催化剂的存储容量。 另外，该装置包括SCR催化剂劣化因子模块，其被配置为至少部分地基于SCR催化剂的储存容量来确定SCR催化剂降解因子。

公开(公告)号：US20080104947A1

公开(公告)日：2008-05-08

申请号：US11593802

申请日：2006-11-07

申请人： Yue Yun Wang ,  Sriram Satya Srinivas Popuri ,  Michael J. Ruth ,  Michael J. Cunningham ,  Joan M. Wills ,  Jer-Sheng J. Chen ,  Samuel C. Geckler

发明人： Yue Yun Wang ,  Sriram Satya Srinivas Popuri ,  Michael J. Ruth ,  Michael J. Cunningham ,  Joan M. Wills ,  Jer-Sheng J. Chen ,  Samuel C. Geckler

IPC分类号： F01N3/10

CPC分类号： F01N3/0231 ,  F01N3/0807 ,  F01N3/0885 ,  F01N9/00 ,  F01N2900/0421 ,  F02B3/06 ,  F02B37/00 ,  F02D41/028 ,  F02D41/22 ,  F02D2200/0612 ,  F02D2200/0818 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/47

摘要： A system, method, and software for triggering regeneration of an adsorber connected with a flow of exhaust from an engine. An exhaust sulfur flow rate module estimates a sulfur accumulation rate associated with an adsorber as a function of a flow of fuel. A sulfur removal rate module estimates a sulfur removal rate associated with the adsorber. An accumulated sulfur loading module includes a counter the value of which is increased as a function of the sulfur accumulation rate and decreased as a function of the sulfur removal rate. A combustion manager module controls an engine to regenerate the adsorber once the counter reaches an upper threshold value.

摘要翻译： 一种用于触发与来自发动机的排气流连接的吸附器再生的系统，方法和软件。 排气硫流量模块估计与吸附器相关联的硫积累速率作为燃料流的函数。 硫去除率模块估计与吸附器相关的硫去除速率。 累积的硫负荷模块包括一个计数器，其值作为硫积累速率的函数而增加，并且随硫去除率而降低。 一旦计数器达到上限阈值，燃烧管理器模块控制发动机再生吸附器。

公开(公告)号：US20120125081A1

公开(公告)日：2012-05-24

申请号：US13166538

申请日：2011-06-22

申请人： Pranati Yadav ,  Phanindra Garimella ,  Joan M. Wills ,  Daniel R. Hashbarger ,  Ross C. Berryhill ,  Dean H. Dringenburg

发明人： Pranati Yadav ,  Phanindra Garimella ,  Joan M. Wills ,  Daniel R. Hashbarger ,  Ross C. Berryhill ,  Dean H. Dringenburg

IPC分类号： G01M15/10

CPC分类号： F01N11/00 ,  F01N2550/04 ,  F01N2560/05 ,  F01N2900/0416 ,  F02D41/029 ,  F02D41/1446 ,  F02D41/1466 ,  F02D41/221 ,  F02D2200/0812 ,  Y02T10/47

摘要： A system includes an internal combustion engine producing an exhaust stream, a particulate filtering device that treats the exhaust stream, a particulate sensor operatively coupled to the exhaust stream at a position downstream of the particulate filtering device, and a temperature sensor operatively coupled to the exhaust stream. The system includes a controller that interprets a particulate sensor particulate stability condition, interprets a particulate sensor input value and a particulate sensor temperature, compensates the particulate sensor input value in response to the particulate sensor temperature, and filters the compensated particulate sensor input value. The controller determines a soot accumulation value in response to the filtered compensated particulate sensor input value, interprets a diagnostic enable condition, and determines a particulate filter diagnostic value in response to the active diagnostic enable condition and the soot accumulation value. The controller provides the particulate filter diagnostic value to an output device.

摘要翻译： 一种系统包括产生排气流的内燃机，处理废气流的颗粒过滤装置，在颗粒过滤装置的下游位置操作地连接到排气流的颗粒传感器，以及可操作地连接到排气口的温度传感器 流。 该系统包括解释颗粒传感器微粒稳定性条件的控制器，解释颗粒传感器输入值和颗粒传感器温度，以响应于颗粒传感器温度补偿颗粒传感器输入值，并且对经补偿的微粒传感器输入值进行滤波。 控制器响应于经滤波的补偿微粒传感器输入值确定烟灰累积值，解释诊断使能条件，并响应于主动诊断使能条件和烟灰累积值确定微粒过滤器诊断值。 控制器为输出设备提供微粒过滤器诊断值。

公开(公告)号：US08181450B2

公开(公告)日：2012-05-22

申请号：US12112678

申请日：2008-04-30

申请人： Phanindra Garimella ,  Abdul R. Ofoli ,  Timothy R. Frazier ,  Joan M. Wills ,  John N. Chi ,  Weiwen Wang ,  Andrew Osburn

发明人： Phanindra Garimella ,  Abdul R. Ofoli ,  Timothy R. Frazier ,  Joan M. Wills ,  John N. Chi ,  Weiwen Wang ,  Andrew Osburn

IPC分类号： F01N3/20

CPC分类号： F01N3/208 ,  B01D53/9409 ,  B01D2251/2062 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2900/0408 ,  F01N2900/0411 ,  F01N2900/0412 ,  F01N2900/1622 ,  F02B37/00 ,  Y02A50/2344 ,  Y02T10/24

摘要： Various embodiments of an apparatus, system, and method are disclosed for reducing NOx emissions using ammonia storage on an SCR catalyst. For example, according to one representative embodiment, an apparatus for reducing NOx emissions in an engine exhaust includes a NOx reduction target module that is configured to determine a NOx reduction requirement. The apparatus also includes an ammonia storage module that is configured to determine an ammonia storage modifier. An ammonia target module of the apparatus is configured to determine an ammonia addition requirement. The ammonia target module is communicable in data receiving communication with the ammonia storage module to receive the ammonia storage modifier, which is added to the ammonia addition requirement. The apparatus also includes a reductant target module that is configured to determine a reductant injection requirement that includes an amount of reductant added to the exhaust gas stream to achieve the ammonia addition requirement.

摘要翻译： 公开了用于使用SCR催化剂上的氨储存来减少NOx排放的装置，系统和方法的各种实施例。 例如，根据一个代表性的实施例，用于减少发动机排气中的NOx排放的装置包括被配置为确定NOx降低要求的NOx还原目标模块。 该装置还包括氨储存模块，其被配置成确定氨贮存改性剂。 该装置的氨目标模块被配置成确定氨添加要求。 氨目标模块可在与氨储存模块进行数据接收通信中进行通信，以接收氨添加要求的氨存储改性剂。 该装置还包括还原剂目标模块，其被配置为确定还原剂注入要求，其包括添加到废气流中的还原剂的量以实现氨添加要求。

公开(公告)号：US08141340B2

公开(公告)日：2012-03-27

申请号：US12433600

申请日：2009-04-30

申请人： Phanindra Garimella ,  Joan M. Wills ,  John N. Chi ,  Neal W. Currier ,  Aleksey Yezerets

发明人： Phanindra Garimella ,  Joan M. Wills ,  John N. Chi ,  Neal W. Currier ,  Aleksey Yezerets

IPC分类号： F01N3/00

CPC分类号： F01N3/208 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24

摘要： According to one representative embodiment, an apparatus for determining the degradation of a selective catalytic reduction (SCR) catalyst of an engine exhaust aftertreatment system includes a system properties module configured to store at least one system dynamics property value of the exhaust system at a first time and receive the at least one system dynamics property value of the exhaust aftertreatment system at a second time subsequent to the first time. The apparatus also includes a system dynamics module configured to determine a storage capacity of the SCR catalyst based on a comparison between the at least one system dynamic property value at the first time and the at least one system dynamic property value at the second time. Additionally, the apparatus includes an SCR catalyst degradation factor module configured to determine an SCR catalyst degradation factor based at least partially on the storage capacity of the SCR catalyst.

摘要翻译： 根据一个代表性实施例，用于确定发动机排气后处理系统的选择性催化还原（SCR）催化剂的劣化的装置包括系统特性模块，其被配置为在第一时间存储排气系统的至少一个系统动力特性值 并且在第一次之后的第二时间接收排气后处理系统的至少一个系统动力特性值。 该装置还包括系统动力学模块，其被配置为基于第一时间的至少一个系统动态属性值与第二时间的至少一个系统动态属性值之间的比较来确定SCR催化剂的存储容量。 另外，该装置包括SCR催化剂劣化因子模块，其被配置为至少部分地基于SCR催化剂的储存容量来确定SCR催化剂降解因子。

公开(公告)号：US07594392B2

公开(公告)日：2009-09-29

申请号：US11593830

申请日：2006-11-07

申请人： Yue-Yun Wang ,  Sriram Satya Srinivas Popuri ,  Joan M. Wills

发明人： Yue-Yun Wang ,  Sriram Satya Srinivas Popuri ,  Joan M. Wills

IPC分类号： F01N3/00

CPC分类号： F02D41/028 ,  F01N3/0231 ,  F01N3/0807 ,  F01N3/0885 ,  F02B3/06 ,  F02B37/00 ,  F02D41/0245 ,  F02D2200/0802 ,  F02M26/05 ,  F02M26/10 ,  F02M26/23 ,  Y02T10/26

摘要： A system, method, and software for regenerating an adsorber connected with a flow of exhaust from an engine. An open-loop control module for ramping up and maintaining a temperature value of an adsorber to a regeneration temperature value by controlling an air fuel ratio value of an engine to operate at an open-loop controlled variable duty cycle. A closed-loop control module is operable to take control from the open-loop control module to maintain the adsorber at the regeneration temperature value if the temperature value of the adsorber deviates from the regeneration temperature value by controlling the air fuel ratio value of the engine to operate at a closed-loop controlled variable duty cycle.

摘要翻译： 一种用于再生与来自发动机的排气流相连的吸附器的系统，方法和软件。 一种开环控制模块，用于通过控制发动机的空燃比值在开环控制的可变占空比下工作来将吸附器的温度值升高并保持到再生温度值。 如果吸附器的温度值通过控制发动机的空燃比值而偏离再生温度值，则闭环控制模块可操作以从开环控制模块控制以将吸附器维持在再生温度值 以闭环控制的可变占空比运行。