-
1.发明申请SYSTEMS AND METHODS FOR DIAGNOSING OXYGEN SENSORS AND CATALYTIC CONVERTERS OF EXHAUST SYSTEMS 有权用于诊断氧传感器的系统和方法以及排气系统的催化转化器公开(公告)号：US20110106411A1
公开(公告)日：2011-05-05
申请号：US12612878
申请日：2009-11-05
申请人： Igor Anilovich , John W. Siekkinen , Wesley W. Wald , Robert J. Genslak , Jeffry A. Helmick , John F. Van Gilder
发明人： Igor Anilovich , John W. Siekkinen , Wesley W. Wald , Robert J. Genslak , Jeffry A. Helmick , John F. Van Gilder
CPC分类号： F01N11/00 , F01N2550/00 , Y02T10/47
摘要： A diagnostic system for an engine includes a stage transition module and a control module. The stage transition module generates a command signal based on a fuel control signal. The command signal commands a fuel system of the engine to intrusively transition between rich and lean states during a diagnostic test that includes first, second, and third stages. The first, second, and third stages are defined based on transitions between the rich and lean states. The control module during the second and third stages detects: an error with a first oxygen sensor based on a comparison between the command signal and a first oxygen signal from the first oxygen sensor; an error with a second oxygen sensor based on a second oxygen signal from the second oxygen sensor; and an error with a catalytic converter based on the first and second oxygen signals and a manifold absolute pressure signal.
摘要翻译： 用于发动机的诊断系统包括平台过渡模块和控制模块。 舞台转换模块基于燃料控制信号产生命令信号。 在包括第一，第二和第三阶段的诊断测试期间，命令信号命令发动机的燃料系统在富状态和贫态之间进行入侵过渡。 第一，第二和第三阶段是基于富国和贫国之间的转变来定义的。 在第二和第三阶段期间，控制模块基于来自第一氧传感器的命令信号和第一氧信号之间的比较来检测第一氧传感器的误差; 基于来自第二氧传感器的第二氧信号的第二氧传感器的误差; 以及基于第一和第二氧气信号的催化转化器和歧管绝对压力信号的误差。
-
2.发明授权Systems and methods for diagnosing oxygen sensors and catalytic converters of exhaust systems 有权用于诊断氧气传感器和排气系统催化转化器的系统和方法公开(公告)号：US08583349B2
公开(公告)日：2013-11-12
申请号：US12612878
申请日：2009-11-05
申请人： Igor Anilovich , John W. Siekkinen , Wesley W. Wald , Robert J. Genslak , Jeffry A. Helmick , John F. Van Gilder
发明人： Igor Anilovich , John W. Siekkinen , Wesley W. Wald , Robert J. Genslak , Jeffry A. Helmick , John F. Van Gilder
CPC分类号： F01N11/00 , F01N2550/00 , Y02T10/47
摘要： A diagnostic system for an engine includes a stage transition module and a control module. The stage transition module generates a command signal based on a fuel control signal. The command signal commands a fuel system of the engine to intrusively transition between rich and lean states during a diagnostic test that includes first, second, and third stages. The first, second, and third stages are defined based on transitions between the rich and lean states. The control module during the second and third stages detects: an error with a first oxygen sensor based on a comparison between the command signal and a first oxygen signal from the first oxygen sensor; an error with a second oxygen sensor based on a second oxygen signal from the second oxygen sensor; and an error with a catalytic converter based on the first and second oxygen signals and a manifold absolute pressure signal.
摘要翻译： 用于发动机的诊断系统包括平台过渡模块和控制模块。 舞台转换模块基于燃料控制信号产生命令信号。 在包括第一，第二和第三阶段的诊断测试期间，命令信号命令发动机的燃料系统在富状态和贫态之间进行入侵过渡。 第一，第二和第三阶段是基于富国和贫国之间的转变来定义的。 在第二和第三阶段期间，控制模块基于来自第一氧传感器的命令信号和第一氧信号之间的比较来检测第一氧传感器的误差; 基于来自第二氧传感器的第二氧信号的第二氧传感器的误差; 以及基于第一和第二氧气信号的催化转化器和歧管绝对压力信号的误差。
-
3.发明授权Non-methane hydrocarbon conversion efficiency diagnostic for a diesel after-treatment system 有权用于柴油后处理系统的非甲烷烃转化效率诊断公开(公告)号：US08839602B2
公开(公告)日：2014-09-23
申请号：US13442926
申请日：2012-04-10
申请人： Igor Anilovich , Janean E. Kowalkowski , Cheryl J. Stark , John F. Van Gilder , Ognyan N. Yanakiev
发明人： Igor Anilovich , Janean E. Kowalkowski , Cheryl J. Stark , John F. Van Gilder , Ognyan N. Yanakiev
IPC分类号： F01N3/00
CPC分类号： F01N3/035 , F01N3/0253 , F01N3/106 , F01N3/2066 , F01N9/002 , F01N11/002 , F01N13/009 , F01N2550/02 , F01N2550/04 , F01N2560/06 , F01N2560/14 , F01N2900/1404 , Y02A50/2325 , Y02T10/47
摘要： A method of assessing non-methane hydrocarbon (NMHC) conversion efficiency in a diesel after-treatment (AT) system having a diesel oxidation catalyst (DOC) arranged upstream of a diesel particulate filter (DPF) includes regenerating the AT system. Additionally, the method monitors DOC inlet and outlet temperatures during the regeneration. The method also assesses whether the DOC is operating at or above threshold efficiency by determining a DOC inlet/outlet temperature difference and comparing the determined inlet/outlet temperature difference with a threshold inlet/outlet temperature difference. The method also monitors DPF outlet temperature if the DOC is operating at or above the threshold efficiency and determines a DOC temperature/DPF outlet temperature difference. The method additionally assesses whether NMHC conversion efficiency of the DPF is at or above a threshold value by comparing the determined DOC temperature/DPF outlet temperature difference with a threshold DOC temperature/DPF outlet temperature difference. A system and a vehicle are also disclosed.
摘要翻译： 在具有布置在柴油机微粒过滤器（DPF）上游的柴油机氧化催化剂（DOC）的柴油后处理（AT）系统中评估非甲烷烃（NMHC）转化效率的方法包括再生AT系统。 此外，该方法在再生期间监测DOC入口和出口温度。 该方法还通过确定DOC入口/出口温度差并将确定的入口/出口温度差与阈值入口/出口温度差进行比较来评估DOC是否在阈值效率以上操作。 如果DOC工作在阈值效率以上或高于阈值效率，该方法还可以监视DPF出口温度，并确定DOC温度/ DPF出口温度差。 该方法通过将确定的DOC温度/ DPF出口温度差与阈值DOC温度/ DPF出口温度差进行比较来另外评估DPF的NMHC转化效率是否在阈值以上。 还公开了一种系统和车辆。
-
4.发明申请公开(公告)号：US20130263577A1
公开(公告)日：2013-10-10
申请号：US13442926
申请日：2012-04-10
申请人： Igor Anilovich , Janean E. Kowalkowski , Cheryl J. Stark , John F. Van Gilder , Ognyan N. Yanakiev
发明人： Igor Anilovich , Janean E. Kowalkowski , Cheryl J. Stark , John F. Van Gilder , Ognyan N. Yanakiev
CPC分类号： F01N3/035 , F01N3/0253 , F01N3/106 , F01N3/2066 , F01N9/002 , F01N11/002 , F01N13/009 , F01N2550/02 , F01N2550/04 , F01N2560/06 , F01N2560/14 , F01N2900/1404 , Y02A50/2325 , Y02T10/47
摘要： A method of assessing non-methane hydrocarbon (NMHC) conversion efficiency in a diesel after-treatment (AT) system having a diesel oxidation catalyst (DOC) arranged upstream of a diesel particulate filter (DPF) includes regenerating the AT system. Additionally, the method monitors DOC inlet and outlet temperatures during the regeneration. The method also assesses whether the DOC is operating at or above threshold efficiency by determining a DOC inlet/outlet temperature difference and comparing the determined inlet/outlet temperature difference with a threshold inlet/outlet temperature difference. The method also monitors DPF outlet temperature if the DOC is operating at or above the threshold efficiency and determines a DOC temperature/DPF outlet temperature difference. The method additionally assesses whether NMHC conversion efficiency of the DPF is at or above a threshold value by comparing the determined DOC temperature/DPF outlet temperature difference with a threshold DOC temperature/DPF outlet temperature difference. A system and a vehicle are also disclosed.
摘要翻译： 在具有布置在柴油机微粒过滤器（DPF）上游的柴油机氧化催化剂（DOC）的柴油后处理（AT）系统中评估非甲烷烃（NMHC）转化效率的方法包括再生AT系统。 此外，该方法在再生期间监测DOC入口和出口温度。 该方法还通过确定DOC入口/出口温度差并将确定的入口/出口温度差与阈值入口/出口温度差进行比较来评估DOC是否在阈值效率以上操作。 如果DOC工作在阈值效率以上或高于阈值效率，该方法还可以监视DPF出口温度，并确定DOC温度/ DPF出口温度差。 该方法通过将确定的DOC温度/ DPF出口温度差与阈值DOC温度/ DPF出口温度差进行比较来另外评估DPF的NMHC转化效率是否在阈值以上。 还公开了一种系统和车辆。
-
5.发明申请公开(公告)号：US20130263591A1
公开(公告)日：2013-10-10
申请号：US13442924
申请日：2012-04-10
申请人： Igor Anilovich , John Coppola , Janean E. Kowalkowski , John F. Van Gilder , Ognyan N. Yanakiev
发明人： Igor Anilovich , John Coppola , Janean E. Kowalkowski , John F. Van Gilder , Ognyan N. Yanakiev
CPC分类号： F01N3/021 , F01N3/103 , F01N3/2066 , F01N11/00 , F01N13/02 , F01N2340/06 , F01N2560/026 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： A method for assessing NO2 generation efficiency in a diesel engine after-treatment (AT) system having a diesel oxidation catalyst (DOC) downstream of the engine generating the NO2 and a selective catalytic reduction (SCR) catalyst downstream of the DOC converting NOX with the aid of the NO2. Engine exhaust gas flow is passed into the AT system and a reductant is injected into the gas flow between the DOC and the SCR catalyst. SCR inlet gas flow temperature is monitored during transient engine operation and DOC inlet and SCR catalyst outlet NOX concentrations are detected when the SCR catalyst inlet gas flow temperature is in a predetermined range. SCR catalyst NOX conversion efficiency is determined using the detected DOC inlet and SCR catalyst outlet concentrations of NOX. Additionally, whether the NO2 generation efficiency is at or above threshold efficiency is assessed by comparing the determined and threshold NOX conversion efficiencies.
摘要翻译： 一种用于评估在发动机发动机下游的柴油氧化催化剂（DOC）的柴油机后处理（AT）系统中的NO 2产生效率的方法和在DOC转化NOX的下游的选择性催化还原（SCR）催化剂， NO2的帮助。 发动机废气流入AT系统，并将还原剂注入到DOC和SCR催化剂之间的气流中。 在SCR催化剂入口气体流动温度处于预定范围内时，在瞬时发动机运转期间监测SCR入口气体流量温度，并检测DOC入口和SCR催化剂出口NO x浓度。 SCR催化剂NOX转化效率使用检测到的DOC入口和SCR催化剂出口浓度的NOX测定。 另外，通过比较确定的和阈值的NOX转换效率来评估NO 2产生效率是否在阈值效率以上。
-
6.发明申请METHOD FOR ON-BOARD DIAGNOSIS OF COLD START EMISSIONS REDUCTION CONTROL STRATEGY 有权用于车载诊断冷启动排放减少控制策略的方法公开(公告)号：US20080195297A1
公开(公告)日：2008-08-14
申请号：US11673870
申请日：2007-02-12
申请人： Wenbo Wang , John L. Lahti , Christopher A. Gillanders , Robert J. Genslak , John F. Van Gilder
发明人： Wenbo Wang , John L. Lahti , Christopher A. Gillanders , Robert J. Genslak , John F. Van Gilder
IPC分类号： F02D45/00
CPC分类号： F02D41/064 , F02D41/1497 , F02D41/22 , F02D2200/1004 , Y02T10/40
摘要： A diagnostic cold start emissions control system for an internal combustion engine includes a control module having a calculated engine-out energy module, an engine-out energy residual module, and a diagnostic system evaluation module. The calculated engine-out energy module is in communication with the engine-out energy residual module and is configured to determine an operating engine-out energy flow based on an operating engine torque. The engine-out energy residual module is in communication with the diagnostic system evaluation module and is configured to determine an engine-out energy residual based on the determined engine-out energy flow and an expected engine-out energy flow. The diagnostic system evaluation module is configured to determine whether the determined engine-out energy residual meets a predetermined value indicative of proper cold start emissions control.
摘要翻译： 用于内燃机的诊断冷启动排放控制系统包括具有计算的发动机输出能量模块，发动机输出能量残余模块和诊断系统评估模块的控制模块。 所计算的发动机输出能量模块与发动机输出能量残余模块通信，并且被配置为基于操作发动机扭矩来确定操作发动机输出的能量流。 发动机输出能量残余模块与诊断系统评估模块通信，并且被配置为基于所确定的发动机输出能量流和预期发动机输出能量流来确定发动机输出能量残余。 诊断系统评估模块被配置为确定确定的发动机输出能量残余是否满足指示适当的冷启动排放控制的预定值。
-
7.发明授权公开(公告)号：US08984867B2
公开(公告)日：2015-03-24
申请号：US13442924
申请日：2012-04-10
申请人： Igor Anilovich , John Coppola , Janean E. Kowalkowski , John F. Van Gilder , Ognyan N. Yanakiev
发明人： Igor Anilovich , John Coppola , Janean E. Kowalkowski , John F. Van Gilder , Ognyan N. Yanakiev
CPC分类号： F01N3/021 , F01N3/103 , F01N3/2066 , F01N11/00 , F01N13/02 , F01N2340/06 , F01N2560/026 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： A method for assessing NO2 generation efficiency in a diesel engine after-treatment (AT) system having a diesel oxidation catalyst (DOC) downstream of the engine generating the NO2 and a selective catalytic reduction (SCR) catalyst downstream of the DOC converting NOX with the aid of the NO2. Engine exhaust gas flow is passed into the AT system and a reductant is injected into the gas flow between the DOC and the SCR catalyst. SCR inlet gas flow temperature is monitored during transient engine operation and DOC inlet and SCR catalyst outlet NOX concentrations are detected when the SCR catalyst inlet gas flow temperature is in a predetermined range. SCR catalyst NOX conversion efficiency is determined using the detected DOC inlet and SCR catalyst outlet concentrations of NOX. Additionally, whether the NO2 generation efficiency is at or above threshold efficiency is assessed by comparing the determined and threshold NOX conversion efficiencies.
摘要翻译： 一种用于评估在发动机发动机下游的柴油氧化催化剂（DOC）的柴油机后处理（AT）系统中的NO 2产生效率的方法和在DOC转化NOX的下游的选择性催化还原（SCR）催化剂， NO2的帮助。 发动机废气流入AT系统，并将还原剂注入到DOC和SCR催化剂之间的气流中。 在SCR催化剂入口气体流动温度处于预定范围内时，在瞬时发动机运转期间监测SCR入口气体流量温度，并检测DOC入口和SCR催化剂出口NO x浓度。 SCR催化剂NOX转化效率使用检测到的DOC入口和SCR催化剂出口浓度的NOX测定。 另外，通过比较确定的和阈值的NOX转换效率来评估NO 2产生效率是否在阈值效率以上。
-
公开(公告)号：US07467544B2
公开(公告)日：2008-12-23
申请号：US11389567
申请日：2006-03-24
申请人： Zhong Wang , Wenbo Wang , Igor Anilovich , John F. Van Gilder
发明人： Zhong Wang , Wenbo Wang , Igor Anilovich , John F. Van Gilder
IPC分类号： G01M17/00
CPC分类号： G01L27/007
摘要： A vacuum signal diagnostic system that diagnoses operation of a vacuum sensor of a brake booster system that is in fluid communication with an engine includes a first module that determines whether a vacuum signal of the vacuum sensor is increasing and a second module that compares an engine vacuum signal of the engine to the vacuum signal. A third module indicates a HI fault of the vacuum sensor when the vacuum sensor is increasing and a difference between the engine vacuum signal and the vacuum signal is greater than zero for a first threshold time.
摘要翻译： 诊断与发动机流体连通的制动助力系统的真空传感器的操作的真空信号诊断系统包括：第一模块，其确定真空传感器的真空信号是否增加;以及第二模块，其将发动机真空 发动机信号到真空信号。 当真空传感器增加时，第三模块表示真空传感器的HI故障，并且在第一阈值时间内，发动机真空信号和真空信号之间的差异大于零。
-
9.发明授权公开(公告)号：US07630826B2
公开(公告)日：2009-12-08
申请号：US11673870
申请日：2007-02-12
CPC分类号： F02D41/064 , F02D41/1497 , F02D41/22 , F02D2200/1004 , Y02T10/40
摘要： A diagnostic cold start emissions control system for an internal combustion engine includes a control module having a calculated engine-out energy module, an engine-out energy residual module, and a diagnostic system evaluation module. The calculated engine-out energy module is in communication with the engine-out energy residual module and is configured to determine an operating engine-out energy flow based on an operating engine torque. The engine-out energy residual module is in communication with the diagnostic system evaluation module and is configured to determine an engine-out energy residual based on the determined engine-out energy flow and an expected engine-out energy flow. The diagnostic system evaluation module is configured to determine whether the determined engine-out energy residual meets a predetermined value indicative of proper cold start emissions control.
摘要翻译： 用于内燃机的诊断冷启动排放控制系统包括具有计算的发动机输出能量模块，发动机输出能量残余模块和诊断系统评估模块的控制模块。 所计算的发动机输出能量模块与发动机输出能量残余模块通信，并且被配置为基于操作发动机扭矩来确定操作发动机输出的能量流。 发动机输出能量残余模块与诊断系统评估模块通信，并且被配置为基于所确定的发动机输出能量流和预期发动机输出能量流来确定发动机输出能量残余。 诊断系统评估模块被配置为确定确定的发动机输出能量残余是否满足指示适当的冷启动排放控制的预定值。
-
10.发明授权公开(公告)号：US07826963B1
公开(公告)日：2010-11-02
申请号：US12431153
申请日：2009-04-28
申请人： Wenbo Wang , Mark D. Carr , Michael J. Lucido , Jon C. Miller , John F. Van Gilder , Daniel P. Grenn , Hamid M. Esfahan , Ian J. Mac Ewen
发明人： Wenbo Wang , Mark D. Carr , Michael J. Lucido , Jon C. Miller , John F. Van Gilder , Daniel P. Grenn , Hamid M. Esfahan , Ian J. Mac Ewen
IPC分类号： F02M51/00
CPC分类号： F02D41/221 , F02D41/20 , F02D2041/2089 , F02D2041/2093 , Y02T10/40
摘要： An engine control system includes a driver module and a diagnostics module. The driver module includes a high-side driver and a low-side driver, which selectively actuate a load. The driver module generates status signals based on detection of each of a plurality of failure modes of the high-side and low-side drivers. The diagnostics module increments a first error count for a first mode of the plurality of failure modes when the status signals indicate the driver module has detected the first mode. The diagnostics module increments a corresponding total count each time the driver module analyzes the first mode. The diagnostics module sets a fail state for a diagnostic trouble code (DTC) when the first error count for the first mode reaches a first predetermined threshold prior to the total count reaching a second predetermined threshold.
摘要翻译： 发动机控制系统包括驱动器模块和诊断模块。 驱动器模块包括选择性地致动负载的高侧驱动器和低侧驱动器。 驱动器模块基于检测到高侧和低侧驱动器的多个故障模式中的每一个产生状态信号。 当状态信号指示驱动器模块已经检测到第一模式时，诊断模块增加多个故障模式的第一模式的第一错误计数。 每当驱动程序模块分析第一模式时，诊断模块会增加相应的总计数。 当第一模式的第一错误计数在总计数达到第二预定阈值之前达到第一预定阈值时，诊断模块设置诊断故障码（DTC）的故障状态。
-
-
-
-
-
-
-
-
-
搜索结果
50 条记录 (耗时 0.053 秒)
