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公开(公告)号：US20130312389A1
公开(公告)日：2013-11-28
申请号：US13477899
申请日：2012-05-22
申请人： Ognyan N. Yanakiev , Igor Anilovich , Cristian Taibi , Charles E. Solbrig , Janean E. Kowalkowski
发明人： Ognyan N. Yanakiev , Igor Anilovich , Cristian Taibi , Charles E. Solbrig , Janean E. Kowalkowski
IPC分类号： F01N11/00
CPC分类号： F01N11/00 , F01N9/002 , F01N2550/04 , F01N2560/025 , F01N2560/05 , F01N2560/14 , F02B37/22 , Y02T10/47
摘要： An internal combustion engine includes a particulate filter that is configured to treat exhaust gas. A method for monitoring the particulate filter includes employing a soot sensor to monitor the exhaust gas downstream of the particulate filter. A fault is detected in the particulate filter when accumulated soot mass indicated by the soot sensor exceeds a soot mass threshold over a course of engine operation between a first regeneration event and a second regeneration event of the particulate filter. A control module associated with operation of the internal combustion engine is notified of the fault.
摘要翻译： 内燃机包括被配置为处理废气的微粒过滤器。 用于监测颗粒过滤器的方法包括采用烟尘传感器来监测微粒过滤器下游的废气。 在微粒过滤器的第一再生事件和第二再生事件之间的发动机运转过程中，由烟灰传感器指示的累积烟灰质量超过烟灰质量阈值时，在微粒过滤器中检测到故障。 通知与内燃机运转相关的控制模块。
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12.发明申请METHOD AND APPARATUS FOR MONITORING A REDUCTANT INJECTION SYSTEM IN AN EXHAUST AFTERTREATMENT SYSTEM 有权用于在排气系统中监测减少注射系统的方法和装置公开(公告)号：US20110083424A1
公开(公告)日：2011-04-14
申请号：US12576399
申请日：2009-10-09
CPC分类号： F01N11/00 , F01N3/208 , F01N2550/05 , F01N2610/02 , F01N2610/144 , F01N2900/0418 , F01N2900/1806 , F01N2900/1808 , F01N2900/1812 , F01N2900/1822 , Y02T10/24 , Y02T10/47
摘要： An internal combustion engine operating at a lean air/fuel ratio includes a reductant injection system configured to dispense reductant into an exhaust gas feedstream upstream of a selective catalytic reduction device. The reductant injection system includes a reductant delivery system fluidly coupled to a reductant dispensing device that is configured to dispense the reductant. A method for monitoring the reductant injection system includes commanding the reductant dispensing device to dispense reductant at a prescribed reductant flowrate, controlling the reductant delivery system to a preferred operating state, monitoring operation of the reductant delivery system and estimating a reductant flowrate as a function of the monitored operation of the reductant delivery system, and diagnosing operation of the reductant injection system as a function of the prescribed reductant flowrate and the estimated reductant flowrate.
摘要翻译： 以稀薄空气/燃料比工作的内燃机包括还原剂喷射系统，其配置成将还原剂分配到选择性催化还原装置上游的废气进料流中。 还原剂注射系统包括流体耦合到还原剂分配装置的还原剂递送系统，其被配置成分配还原剂。 用于监测还原剂注射系统的方法包括命令还原剂分配装置以规定的还原剂流量分配还原剂，将还原剂递送系统控制到优选的操作状态，监测还原剂递送系统的操作并估计还原剂流量作为 还原剂输送系统的监测操作，以及根据规定的还原剂流速和估计的还原剂流速来诊断还原剂注入系统的操作。
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13.发明授权Ammonia (NH3) storage control system and method at low nitrogen oxide (NOx) mass flow rates 有权氨（NH3）储存控制系统和低氮氧化物（NOx）质量流量的方法公开(公告)号：US08096110B2
公开(公告)日：2012-01-17
申请号：US12273751
申请日：2008-11-19
申请人： Charles E. Solbrig
发明人： Charles E. Solbrig
IPC分类号： F01N3/00
CPC分类号： F02D41/1453 , F01N3/021 , F01N3/103 , F01N3/208 , F01N13/009 , F02D41/0055 , F02D41/1446 , F02D41/187 , Y02T10/47
摘要： A control system comprising an ammonia (NH3) storage level determination module that determines a NH3 storage level in an exhaust system, a desired NH3 storage level determination module that determines a desired NH3 storage level based on an exhaust temperature, and a nitrogen oxide (NOx) mass flow rate control module that controls a NOx mass flow rate based on a difference between the NH3 storage level and the desired NH3 storage level. A method comprising determining a NH3 storage level in an exhaust system, determining a desired NH3 storage level based on an exhaust temperature, and controlling a NOx mass flow rate based on a difference between the NH3 storage level and the desired NH3 storage level.
摘要翻译： 一种控制系统，包括确定排气系统中NH 3储存水平的氨（NH 3）储存水平确定模块，基于排气温度确定所需NH 3储存水平的所需NH 3储存水平确定模块和氮氧化物（NOx ）质量流量控制模块，其基于NH 3储存水平和所需NH 3储存水平之间的差异来控制NOx质量流量。 一种方法，包括确定排气系统中的NH 3储存水平，基于排气温度确定所需的NH 3储存水平，以及基于NH 3储存水平和所需NH 3储存水平之间的差来控制NOx质量流量。
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14.发明授权Robust design of diagnostic enabling conditions for SCR NOx conversion efficiency monitor 有权可靠的SCR可靠性设计，可用于SCR NOx转换效率监控公开(公告)号：US08091416B2
公开(公告)日：2012-01-10
申请号：US12355094
申请日：2009-01-16
IPC分类号： G01M15/10
CPC分类号： F01N3/2066 , F01N11/00 , Y02T10/24 , Y02T10/47
摘要： A method for controlling a malfunction catalyst diagnostic test that determines a malfunction status of a catalyst within a selective catalytic reduction device includes monitoring an exhaust gas flow within an aftertreatment system, estimating an effect of the exhaust gas flow on an estimated reductant storage on a catalyst within the selective catalytic reduction device, and selectively disabling the malfunction catalyst diagnostic test based upon the estimating the effect of the exhaust gas flow on the estimated reductant storage.
摘要翻译： 一种用于确定选择性催化还原装置内的催化剂的故障状态的故障催化剂诊断试验的方法包括监测后处理系统中的废气流，估计废气流对催化剂上估计的还原剂储存的影响 在选择性催化还原装置内，并且基于估计废气流对估计的还原剂储存器的影响，选择性地禁用故障催化剂诊断试验。
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15.发明申请TEMPERATURE CONTROL SYSTEM AND METHOD FOR PARTICULATE FILTER REGENERATION USING A HYDROCARBON INJECTOR 有权温度控制系统和使用油墨注射器进行过滤器再生的方法公开(公告)号：US20100076666A1
公开(公告)日：2010-03-25
申请号：US12464975
申请日：2009-05-13
CPC分类号： F01N3/023
摘要： A control system includes a first module, a fuel determination module, a temperature error correction module, and a hydrocarbon injection control module. The first module determines a temperature difference between a desired inlet temperature of a particulate filter (PF) and an outlet temperature of a first catalyst. The fuel determination module determines an uncorrected desired fuel value based on the temperature difference, an ambient temperature, and a mass flow of exhaust gas. The temperature error correction module generates a desired fuel value based on the uncorrected desired fuel value. The hydrocarbon injection control module controls a hydrocarbon injector based on the desired fuel value.
摘要翻译： 控制系统包括第一模块，燃料确定模块，温度误差校正模块和烃喷射控制模块。 第一模块确定微粒过滤器（PF）的期望入口温度和第一催化剂的出口温度之间的温度差。 燃料确定模块基于温度差，环境温度和废气的质量流量来确定未校正的期望燃料值。 温度误差校正模块基于未校正的期望燃料值产生期望的燃料值。 碳氢化合物喷射控制模块基于期望的燃料值控制烃喷射器。
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16.发明申请ON BOARD DIAGNOSTIC MONITOR OF NOX CONVERSION EFFICIENCY FOR AFTERTREATMENT DEVICE 有权用于后处理装置的NOX转换效率的板上诊断监视器公开(公告)号：US20100043397A1
公开(公告)日：2010-02-25
申请号：US12537390
申请日：2009-08-07
IPC分类号： F01N11/00
CPC分类号： F01N3/208 , F01N3/0814 , F01N11/007 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： A method for indicating a malfunctioning catalyst in a powertrain including an internal combustion engine and an aftertreatment system including an aftertreatment device utilizing a catalyst to convert NOx includes monitoring a NOx content entering the aftertreatment system, monitoring a NOx content exiting the aftertreatment system, determining an actual conversion efficiency based upon the NOx content entering the aftertreatment system and the NOx content exiting the aftertreatment system, monitoring factors affecting conversion efficiency within the aftertreatment device, determining a malfunction conversion efficiency indicative of the malfunctioning catalyst based upon the factors affecting conversion efficiency within the aftertreatment device, and indicating the malfunctioning catalyst based upon comparing the actual conversion efficiency to the malfunction conversion efficiency.
摘要翻译： 一种用于指示包括内燃机的动力传动系故障催化剂的方法和包括利用催化剂转化NOx的后处理装置的后处理系统的方法，包括监测进入后处理系统的NOx含量，监测离开后处理系统的NOx含量， 基于进入后处理系统的NOx含量和离开后处理系统的NOx含量的实际转换效率，监测影响后处理装置中转换效率的因素，基于影响转换效率的因素确定指示故障催化剂的故障转换效率 后处理装置，并且基于将实际转换效率与故障转换效率进行比较来指示故障催化剂。
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公开(公告)号：US09429058B2
公开(公告)日：2016-08-30
申请号：US12325480
申请日：2008-12-01
CPC分类号： F01N3/2066 , B01F3/04049 , B01F5/0268 , B01F5/0473 , B01F5/0616 , F01N3/2892 , F01N2240/20 , F01N2610/1453 , Y02T10/24
摘要： A selective catalytic reduction (SCR) system includes an exhaust pipe for receiving an exhaust gas from an engine. A selective catalytic reduction (SCR) unit is provided downstream of the exhaust pipe. A first mixing element including a meshed body defines a first surface, a second surface, and a plurality of openings extending from the first surface to the second surface. The first surface and second surface are parallel to each other and define an angle relative to a flow direction of the exhaust flow. The angle is less than 90 degrees.
摘要翻译： 选择性催化还原（SCR）系统包括用于从发动机接收废气的排气管。 在排气管的下游设有选择性催化还原（SCR）单元。 包括网状体的第一混合元件限定第一表面，第二表面和从第一表面延伸到第二表面的多个开口。 第一表面和第二表面彼此平行并且相对于废气流的流动方向限定一个角度。 角度小于90度。
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公开(公告)号：US20130343421A1
公开(公告)日：2013-12-26
申请号：US13530548
申请日：2012-06-22
CPC分类号： F02D41/0072 , F02B29/0406 , F02B29/0493 , F02D41/18 , F02D2041/0067 , F02D2200/0414 , F02D2200/0416 , F02M26/05 , F02M26/25 , F02M26/47 , F02M35/1038 , Y02T10/146 , Y02T10/47
摘要： An engine air system for charge flow temperature estimation includes a charge air cooler outlet temperature sensor configured to provide a first temperature signal, an exhaust gas recirculation outlet temperature sensor configured to provide a second temperature signal, and a control module configured to receive the first temperature signal and the second temperature signal. The control module includes a charge flow temperature estimation module configured to determine an the estimated charge flow temperature at an intake manifold temperature sensing position based on a combination of the first temperature signal multiplied by an estimated fresh air fraction and the second temperature signal multiplied by an exhaust gas recirculation fraction.
摘要翻译： 用于充电流温度估计的发动机空气系统包括配置成提供第一温度信号的增压空气冷却器出口温度传感器，被配置为提供第二温度信号的排气再循环出口温度传感器，以及被配置为接收第一温度 信号和第二温度信号。 控制模块包括充电流温度估计模块，其被配置为基于乘以估计新鲜空气部分的第一温度信号与乘以估计新鲜空气部分的第二温度信号的组合来确定进气歧管温度感测位置处的估计的充气流量温度 废气再循环部分。
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19.发明授权Aftertreatment device NOx conversion efficiency diagnostics using on board adaptive diagnostic algorithm 有权后处理装置NOx转换效率诊断使用板上自适应诊断算法公开(公告)号：US08201444B2
公开(公告)日：2012-06-19
申请号：US12537395
申请日：2009-08-07
IPC分类号： G01M15/10
CPC分类号： F01N11/002 , F01N3/2066 , F01N2550/03 , F01N2560/026 , F01N2560/06 , F01N2570/18 , F01N2610/02 , Y02T10/24 , Y02T10/47
摘要： A powertrain includes an internal combustion engine and an aftertreatment system having an aftertreatment device utilizing a catalyst to convert NOx. A method for indicating a malfunctioning catalyst includes monitoring an actual NOx content exiting the aftertreatment system, monitoring factors affecting conversion efficiency of the aftertreatment device, determining a predicted threshold NOx content exiting the aftertreatment system for an exemplary malfunctioning catalyst based upon the factors affecting conversion efficiency, comparing the actual NOx content exiting the aftertreatment system to the predicted threshold NOx content exiting the aftertreatment system, and indicating a malfunctioning catalyst based upon the comparing.
摘要翻译： 动力系包括具有利用催化剂转化NOx的后处理装置的内燃机和后处理系统。 用于指示故障催化剂的方法包括监测离开后处理系统的实际NOx含量，监测影响后处理装置的转化效率的因素，基于影响转化效率的因素，确定离开后处理系统的预测阈值NOx含量 将离开后处理系统的实际NOx含量与离开后处理系统的预测阈值NOx含量进行比较，并基于比较来指示故障催化剂。
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公开(公告)号：US07926263B2
公开(公告)日：2011-04-19
申请号：US11960833
申请日：2007-12-20
IPC分类号： F01N3/00
CPC分类号： F01N3/0885 , F01N3/0814 , F01N3/0821 , F01N3/2066 , F01N2560/025 , F01N2560/027 , F02D41/027 , F02D41/028 , F02D41/029 , F02D41/1441 , Y02T10/24
摘要： A method and system is disclosed for regenerating a particulate filter, desulfating a lean NOx trap, desulfating or regenerating a hydrocarbon-selective catalytic reduction catalyst, desulfating or regenerating a urea-selective catalytic reduction catalyst, or a combination thereof.
摘要翻译： 公开了一种方法和系统，用于再生颗粒过滤器，脱硫贫NOx捕集器，脱硫或再生烃选择性催化还原催化剂，脱硫或再生尿素选择性催化还原催化剂，或其组合。
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