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1.发明申请Method and Apparatus to Selectively Reduce NOx in an Exhaust Gas Feedstream 有权选择性地减少废气进料中的NOx的方法和装置公开(公告)号：US20080066456A1
公开(公告)日：2008-03-20
申请号：US11533434
申请日：2006-09-20
CPC分类号： F01N3/208 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2560/07 , F01N2610/03 , F01N2610/146 , Y02A50/2325 , Y02T10/24
摘要： A method and apparatus are described to selectively reduce NOx emissions of an internal combustion engine. An exhaust aftertreatment system comprises an injection device operative to dispense a hydrocarbon reductant upstream of a silver-alumina catalytic reactor device. A control system determines a NOx concentration and hydrocarbon/NOx ratio based upon selected parameters of the exhaust gas feedstream and dispenses hydrocarbon reductant during lean engine operation. Included is a method to control elements of the feedstream during lean operation. The hydrocarbon reductant may comprise engine fuel.
摘要翻译： 描述了一种方法和装置来选择性地减少内燃机的NOx排放。 排气后处理系统包括一个注入装置，其可操作以在银 - 氧化铝催化反应器装置上游分配烃还原剂。 控制系统基于废气进料流的选定参数确定NO x SO 2浓度和烃/ NO x SO 2比例，并在稀薄发动机运转期间分配碳氢化合物还原剂。 包括在精炼操作期间控制进料流的元素的方法。 烃还原剂可以包括发动机燃料。
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2.发明授权Method and apparatus to selectively reduce NOx in an exhaust gas feedstream 有权选择性地还原废气进料流中的NOx的方法和装置公开(公告)号：US08006481B2
公开(公告)日：2011-08-30
申请号：US11533434
申请日：2006-09-20
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2560/07 , F01N2610/03 , F01N2610/146 , Y02A50/2325 , Y02T10/24
摘要： A method and apparatus are described to selectively reduce NOx emissions of an internal combustion engine. An exhaust aftertreatment system includes an injection device operative to dispense a hydrocarbon reductant upstream of a silver-alumina catalytic reactor device. A control system determines a NOx concentration and hydrocarbon/NOx ratio based upon selected parameters of the exhaust gas feedstream and dispenses hydrocarbon reductant during lean engine operation. Included is a method to control elements of the feedstream during lean operation. The hydrocarbon reductant may include engine fuel.
摘要翻译： 描述了一种方法和装置来选择性地减少内燃机的NOx排放。 排气后处理系统包括可在银 - 氧化铝催化反应器装置上游分配烃还原剂的注射装置。 控制系统基于废气进料流的选定参数确定NOx浓度和烃/ NOx比，并在稀薄发动机运行期间分配碳氢化合物还原剂。 包括在精炼操作期间控制进料流的元素的方法。 烃还原剂可以包括发动机燃料。
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3.发明申请METHOD TO MONITOR HC-SCR CATALYST NOX REDUCTION PERFORMANCE FOR LEAN EXHAUST APPLICATIONS 有权监测HC-SCR催化剂降低NOx排放性能的方法公开(公告)号：US20100307140A1
公开(公告)日：2010-12-09
申请号：US12480932
申请日：2009-06-09
申请人： Michael B. Viola , Steven J. Schmieg , Thompson M. Sloane , David L. Hilden , Patricia A. Mulawa , Jong H. Lee , Shi-Wai S. Cheng
发明人： Michael B. Viola , Steven J. Schmieg , Thompson M. Sloane , David L. Hilden , Patricia A. Mulawa , Jong H. Lee , Shi-Wai S. Cheng
CPC分类号： F01N3/208 , F01N2250/12 , F01N2560/06 , F01N2610/03 , F01N2610/146 , F01N2900/0411 , F01N2900/08 , Y02T10/24
摘要： A method for initiating a regeneration mode in selective catalytic reduction device utilizing hydrocarbons as a reductant includes monitoring a temperature within the aftertreatment system, monitoring a fuel dosing rate to the selective catalytic reduction device, monitoring an initial conversion efficiency, selecting a determined equation to estimate changes in a conversion efficiency of the selective catalytic reduction device based upon the monitored temperature and the monitored fuel dosing rate, estimating changes in the conversion efficiency based upon the determined equation and the initial conversion efficiency, and initiating a regeneration mode for the selective catalytic reduction device based upon the estimated changes in conversion efficiency.
摘要翻译： 使用碳氢化合物作为还原剂的选择性催化还原装置中启动再生模式的方法包括监测后处理系统中的温度，监测选择性催化还原装置的燃料给料速率，监测初始转化效率，选择确定的方程以估计 基于所监测的温度和所监测的燃料配量率，选择性催化还原装置的转化效率的变化，基于所确定的方程和初始转化效率来估算转换效率的变化，以及开始用于选择性催化还原的再生模式 设备基于估算的转换效率的变化。
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4.发明申请METHOD AND APPARATUS FOR MONITORING A HYDROCARBON-SELECTIVE CATALYTIC REDUCTION DEVICE 有权用于监测选择性催化还原装置的方法和装置公开(公告)号：US20110072790A1
公开(公告)日：2011-03-31
申请号：US12568754
申请日：2009-09-29
申请人： Steven J. Schmieg , Michael B. Viola , Shi-Wai S. Cheng , Patricia A. Mulawa , David L. Hilden , Thompson M. Sloane , Jong H. Lee
发明人： Steven J. Schmieg , Michael B. Viola , Shi-Wai S. Cheng , Patricia A. Mulawa , David L. Hilden , Thompson M. Sloane , Jong H. Lee
CPC分类号： F01N3/208 , F01N3/035 , F01N3/106 , F01N13/0093 , F01N13/0097 , F01N2560/023 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/03 , F01N2900/1411 , F01N2900/1602 , F01N2900/1812 , F02D41/025 , F02D41/027 , F02D41/1445 , F02D41/405 , F02D2200/0802 , Y02T10/24
摘要： A method for monitoring a hydrocarbon-selective catalytic reactor device of an exhaust aftertreatment system of an internal combustion engine operating lean of stoichiometry includes injecting a reductant into an exhaust gas feedstream upstream of the hydrocarbon-selective catalytic reactor device at a predetermined mass flowrate of the reductant, and determining a space velocity associated with a predetermined forward portion of the hydrocarbon-selective catalytic reactor device. When the space velocity exceeds a predetermined threshold space velocity, a temperature differential across the predetermined forward portion of the hydrocarbon-selective catalytic reactor device is determined, and a threshold temperature as a function of the space velocity and the mass flowrate of the reductant is determined. If the temperature differential across the predetermined forward portion of the hydrocarbon-selective catalytic reactor device is below the threshold temperature, operation of the engine is controlled to regenerate the hydrocarbon-selective catalytic reactor device.
摘要翻译： 用于监测贫化学计量运行的内燃机的排气后处理系统的烃选择性催化反应器装置的方法包括将还原剂以预定质量流量的烃选择性催化反应器装置的上游的排气进料流注入 并且确定与烃选择性催化反应器装置的预定向前部分相关联的空间速度。 当空速超过预定阈值空间速度时，确定烃选择性催化反应器装置的预定向前部分的温差，并且确定作为还原剂的空速和质量流量的函数的阈值温度 。 如果烃选择性催化反应器装置的预定向前部分的温差低于阈值温度，则控制发动机的操作以再生烃选择性催化反应器装置。
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5.发明授权Method to monitor HC-SCR catalyst NOx reduction performance for lean exhaust applications 有权监控HC-SCR催化剂的方法，用于稀薄排气应用的NOx还原性能公开(公告)号：US08186151B2
公开(公告)日：2012-05-29
申请号：US12480932
申请日：2009-06-09
申请人： Michael B. Viola , Steven J. Schmieg , Thompson M. Sloane , David L. Hilden , Patricia A. Mulawa , Jong H. Lee , Shi-Wai S. Cheng
发明人： Michael B. Viola , Steven J. Schmieg , Thompson M. Sloane , David L. Hilden , Patricia A. Mulawa , Jong H. Lee , Shi-Wai S. Cheng
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N2250/12 , F01N2560/06 , F01N2610/03 , F01N2610/146 , F01N2900/0411 , F01N2900/08 , Y02T10/24
摘要： A method for initiating a regeneration mode in selective catalytic reduction device utilizing hydrocarbons as a reductant includes monitoring a temperature within the aftertreatment system, monitoring a fuel dosing rate to the selective catalytic reduction device, monitoring an initial conversion efficiency, selecting a determined equation to estimate changes in a conversion efficiency of the selective catalytic reduction device based upon the monitored temperature and the monitored fuel dosing rate, estimating changes in the conversion efficiency based upon the determined equation and the initial conversion efficiency, and initiating a regeneration mode for the selective catalytic reduction device based upon the estimated changes in conversion efficiency.
摘要翻译： 使用碳氢化合物作为还原剂的选择性催化还原装置中启动再生模式的方法包括监测后处理系统中的温度，监测选择性催化还原装置的燃料给料速率，监测初始转化效率，选择确定的方程以估计 基于所监测的温度和所监测的燃料配量率，选择性催化还原装置的转化效率的变化，基于所确定的方程和初始转化效率来估算转换效率的变化，以及开始用于选择性催化还原的再生模式 设备基于估算的转换效率的变化。
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6.发明授权Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device 有权用于监测烃选择性催化还原装置的方法和装置公开(公告)号：US08713914B2
公开(公告)日：2014-05-06
申请号：US12568754
申请日：2009-09-29
申请人： Steven J. Schmieg , Michael B. Viola , Shi-Wai S. Cheng , Patricia A. Mulawa , David L. Hilden , Thompson M. Sloane , Jong H. Lee
发明人： Steven J. Schmieg , Michael B. Viola , Shi-Wai S. Cheng , Patricia A. Mulawa , David L. Hilden , Thompson M. Sloane , Jong H. Lee
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N3/035 , F01N3/106 , F01N13/0093 , F01N13/0097 , F01N2560/023 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/03 , F01N2900/1411 , F01N2900/1602 , F01N2900/1812 , F02D41/025 , F02D41/027 , F02D41/1445 , F02D41/405 , F02D2200/0802 , Y02T10/24
摘要： A method for monitoring a hydrocarbon-selective catalytic reactor device of an exhaust aftertreatment system of an internal combustion engine operating lean of stoichiometry includes injecting a reductant into an exhaust gas feedstream upstream of the hydrocarbon-selective catalytic reactor device at a predetermined mass flowrate of the reductant, and determining a space velocity associated with a predetermined forward portion of the hydrocarbon-selective catalytic reactor device. When the space velocity exceeds a predetermined threshold space velocity, a temperature differential across the predetermined forward portion of the hydrocarbon-selective catalytic reactor device is determined, and a threshold temperature as a function of the space velocity and the mass flowrate of the reductant is determined. If the temperature differential across the predetermined forward portion of the hydrocarbon-selective catalytic reactor device is below the threshold temperature, operation of the engine is controlled to regenerate the hydrocarbon-selective catalytic reactor device.
摘要翻译： 用于监测贫化学计量运行的内燃机的排气后处理系统的烃选择性催化反应器装置的方法包括将还原剂以预定质量流量的烃选择性催化反应器装置的上游的排气进料流注入 并且确定与烃选择性催化反应器装置的预定向前部分相关联的空间速度。 当空速超过预定阈值空间速度时，确定烃选择性催化反应器装置的预定向前部分的温差，并且确定作为还原剂的空速和质量流量的函数的阈值温度 。 如果烃选择性催化反应器装置的预定向前部分的温差低于阈值温度，则控制发动机的操作以再生烃选择性催化反应器装置。
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公开(公告)号：US09206898B2
公开(公告)日：2015-12-08
申请号：US13105204
申请日：2011-05-11
IPC分类号： F16D48/06 , G06F19/00 , F16H61/12 , F16H61/688
CPC分类号： F16H61/12 , B60Y2300/186 , F16D48/06 , F16D2500/1045 , F16D2500/1086 , F16D2500/30403 , F16D2500/30421 , F16D2500/30814 , F16D2500/3163 , F16D2500/50293 , F16D2500/7041 , F16D2500/70426 , F16D2500/70428 , F16D2500/7101 , F16H61/688 , F16H2061/1208
摘要： A method to control a clutch in a transmission includes monitoring a frequency response of the clutch including monitoring a response repeating one time per revolution of the clutch a response repeating more than one time per revolution of the clutch. A ratio of the response repeating more than one time per revolution of the clutch to the response repeating one time per revolution of the clutch is determined and compared to a first threshold ratio. A likely shudder condition is indicated based upon the comparing.
摘要翻译： 用于控制变速器中的离合器的方法包括监视离合器的频率响应，包括监测每转一次重复的离合器的响应，该响应重复地超过离合器的每转一次以上。 将离合器每转多次重复的响应比与离合器的每转一次重复的响应的比率确定并与第一阈值比进行比较。 基于比较来指示可能的颤抖状况。
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8.发明授权Method and apparatus for monitoring a urea injection system in an exhaust aftertreatment system 有权用于在排气后处理系统中监测尿素喷射系统的方法和装置公开(公告)号：US07610750B2
公开(公告)日：2009-11-03
申请号：US11459673
申请日：2006-07-25
IPC分类号： F01N3/00
CPC分类号： F01N3/2066 , F01N3/035 , F01N3/36 , F01N11/00 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2550/05 , F01N2610/02 , F01N2610/14 , Y02T10/24 , Y02T10/47
摘要： A monitoring system for an exhaust aftertreatment system is provided, comprising an injecting device operable to inject reductant into an exhaust gas feedstream upstream of a selective catalyst reduction device. The monitoring system comprises a control module, adapted to selectively intrusively control a rate of dosing from the injecting device and, monitor inputs from a sensing device. The sensing device can comprise an ammonia sensor, and, alternatively, a NOx sensor. The control module is adapted to discontinue the rate of dosing, and substantially increase and decrease the rate of dosing for a predetermined amount of time, and to identify a fault in the sensing device and the selective catalyst reduction device.
摘要翻译： 提供了一种用于排气后处理系统的监测系统，包括可将还原剂注入到选择性催化剂还原装置上游的废气进料流中的注射装置。 监测系统包括控制模块，其适于选择性地主动地控制来自注射装置的给药速率并监测来自感测装置的输入。 感测装置可以包括氨传感器，或者替代地，NOx传感器。 控制模块适于中止给药速率，并且在预定量的时间内基本上增加和减少给药速率，并且识别感测装置和选择性催化剂还原装置中的故障。
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公开(公告)号：US08544258B2
公开(公告)日：2013-10-01
申请号：US11234004
申请日：2005-09-23
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N3/035 , F01N3/106 , F01N11/002 , F01N13/009 , F01N2560/06 , F01N2560/14 , F01N2570/18 , F01N2610/02 , Y02T10/24 , Y02T10/47
摘要： A method of monitoring operation of an exhaust treatment system of a diesel engine includes injecting a dosing agent into an exhaust and monitoring the operating conditions of an engine during normal driving conditions. A control module monitors inlet and outlet temperatures of a catalyst and compares the inlet temperature to the outlet temperature. The control module further evaluates the exhaust treatment system based on the inlet temperature, the outlet temperature and a predetermined temperature threshold.
摘要翻译： 监测柴油发动机排气处理系统的操作的方法包括在正常行驶状态下将定量剂注入排气中并监测发动机的运行状态。 控制模块监测催化剂的入口和出口温度，并将入口温度与出口温度进行比较。 控制模块基于入口温度，出口温度和预定温度阈值进一步评估废气处理系统。
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公开(公告)号：US20120290167A1
公开(公告)日：2012-11-15
申请号：US13105204
申请日：2011-05-11
CPC分类号： F16H61/12 , B60Y2300/186 , F16D48/06 , F16D2500/1045 , F16D2500/1086 , F16D2500/30403 , F16D2500/30421 , F16D2500/30814 , F16D2500/3163 , F16D2500/50293 , F16D2500/7041 , F16D2500/70426 , F16D2500/70428 , F16D2500/7101 , F16H61/688 , F16H2061/1208
摘要： A method to control a clutch in a transmission includes monitoring a frequency response of the clutch including monitoring a response repeating one time per revolution of the clutch a response repeating more than one time per revolution of the clutch. A ratio of the response repeating more than one time per revolution of the clutch to the response repeating one time per revolution of the clutch is determined and compared to a first threshold ratio. A likely shudder condition is indicated based upon the comparing.
摘要翻译： 用于控制变速器中的离合器的方法包括监视离合器的频率响应，包括监测每转一次重复的离合器的响应，该响应重复地超过离合器的每转一次以上。 将离合器每转多次重复的响应比与离合器的每转一次重复的响应的比率确定并与第一阈值比进行比较。 基于比较来指示可能的颤抖状况。
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