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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。
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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。
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公开(公告)号：US07900439B2
公开(公告)日：2011-03-08
申请号：US11811451
申请日：2007-06-08
申请人： Robert J. Genslak , Igor Anilovich , Justin F. Adams , Jeffry A. Helmick , Edward Stuteville , Wesley W. Wald , Vidyapriya Srinivasan
发明人： Robert J. Genslak , Igor Anilovich , Justin F. Adams , Jeffry A. Helmick , Edward Stuteville , Wesley W. Wald , Vidyapriya Srinivasan
IPC分类号： F01N3/00
CPC分类号： F01N9/00 , F01N2570/16 , Y02T10/47
摘要： A diagnostic system for an exhaust system including a catalyst and a post-catalyst oxygen sensor is provided. The system generally includes a fuel control module that commands fuel to transition from a rich condition to a lean condition and that commands fuel to transition from the lean condition to the rich condition. A first diagnostic module monitors the post-catalyst oxygen sensor during the transition from the rich condition to the lean condition. A second diagnostic module monitors the catalyst during the transition from the lean condition to the rich condition.
摘要翻译： 提供了一种用于包括催化剂和催化后氧传感器的排气系统的诊断系统。 该系统通常包括燃料控制模块，其指示燃料从富状态转换到稀薄状态，并且指令燃料从稀薄状态转换到富状态。 第一个诊断模块在从富状态转移到稀薄条件期间监测催化后氧传感器。 第二个诊断模块监测催化剂在从贫态到富状态的过渡期间。
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公开(公告)号：US20080302087A1
公开(公告)日：2008-12-11
申请号：US11811451
申请日：2007-06-08
申请人： Robert J. Genslak , Igor Anilovich , Justin F. Adams , Jeffry A. Helmick , Edward Stuteville , Wesley W. Wald , Vidyapriya Srinivasan
发明人： Robert J. Genslak , Igor Anilovich , Justin F. Adams , Jeffry A. Helmick , Edward Stuteville , Wesley W. Wald , Vidyapriya Srinivasan
IPC分类号： F01N7/00
CPC分类号： F01N9/00 , F01N2570/16 , Y02T10/47
摘要： A diagnostic system for an exhaust system including a catalyst and a post-catalyst oxygen sensor is provided. The system generally includes a fuel control module that commands fuel to transition from a rich condition to a lean condition and that commands fuel to transition from the lean condition to the rich condition. A first diagnostic module monitors the post-catalyst oxygen sensor during the transition from the rich condition to the lean condition. A second diagnostic module monitors the catalyst during the transition from the lean condition to the rich condition.
摘要翻译： 提供了一种用于包括催化剂和催化后氧传感器的排气系统的诊断系统。 该系统通常包括燃料控制模块，其指示燃料从富状态转换到稀薄状态，并且指令燃料从稀薄状态转换到富状态。 第一个诊断模块在从富状态转移到稀薄条件期间监测催化后氧传感器。 第二个诊断模块监测催化剂在从贫态到富状态的过渡期间。
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5.发明授权System and method for monitoring catalyst efficiency and post-catalyst oxygen sensor performance 有权用于监测催化剂效率和催化后氧传感器性能的系统和方法公开(公告)号：US08516796B2
公开(公告)日：2013-08-27
申请号：US12623013
申请日：2009-11-20
IPC分类号： F01N11/00
CPC分类号： F01N11/00 , F01N3/10 , F01N2430/06 , F01N2560/025 , F01N2900/1621 , Y02T10/47
摘要： A diagnostic system for an exhaust system of an engine includes a fuel control module and a diagnostic module. The fuel control module, in response to a request for a fuel inhibiting event, operates the engine in a first rich condition for a first period until a catalytic converter of the exhaust system is in a predetermined first rich state and subsequently operates the engine in a lean condition for a second period contiguous with the first period. The diagnostic module determines a catalyst efficiency of the catalytic converter based on an output of an oxygen sensor located downstream of said catalytic converter during the second period, and selectively adjusts a diagnostic status of the catalytic converter based on a comparison of the catalyst efficiency and a predetermined catalyst efficiency. The fuel inhibiting event may be a deceleration fuel-cutoff event. A related diagnostic method is also provided.
摘要翻译： 用于发动机排气系统的诊断系统包括燃料控制模块和诊断模块。 燃料控制模块响应于燃料抑制事件的请求，在第一浓缩状态下操作发动机持续第一时间段，直到排气系统的催化转化器处于预定的第一富集状态，并随后将发动机运行在 贫困状况与第一个周期相邻的第二个时期。 诊断模块基于在第二时段期间位于所述催化转化器下游的氧传感器的输出来确定催化转化器的催化剂效率，并且基于催化剂效率和催化剂效率的比较来选择性地调节催化转化器的诊断状态 预定的催化剂效率。 燃料抑制事件可以是减速燃料切断事件。 还提供了相关的诊断方法。
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6.发明申请SYSTEM AND METHOD FOR MONITORING CATALYST EFFICIENCY AND POST-CATALYST OXYGEN SENSOR PERFORMANCE 有权用于监测催化剂效率和催化剂氧传感器性能的系统和方法公开(公告)号：US20110120095A1
公开(公告)日：2011-05-26
申请号：US12623013
申请日：2009-11-20
CPC分类号： F01N11/00 , F01N3/10 , F01N2430/06 , F01N2560/025 , F01N2900/1621 , Y02T10/47
摘要： A diagnostic system for an exhaust system of an engine includes a fuel control module and a diagnostic module. The fuel control module, in response to a request for a fuel inhibiting event, operates the engine in a first rich condition for a first period until a catalytic converter of the exhaust system is in a predetermined first rich state and subsequently operates the engine in a lean condition for a second period contiguous with the first period. The diagnostic module determines a catalyst efficiency of the catalytic converter based on an output of an oxygen sensor located downstream of said catalytic converter during the second period, and selectively adjusts a diagnostic status of the catalytic converter based on a comparison of the catalyst efficiency and a predetermined catalyst efficiency. The fuel inhibiting event may be a deceleration fuel-cutoff event. A related diagnostic method is also provided.
摘要翻译： 用于发动机排气系统的诊断系统包括燃料控制模块和诊断模块。 燃料控制模块响应于对燃料抑制事件的请求，在第一浓缩状态下操作发动机持续第一时间段，直到排气系统的催化转化器处于预定的第一富集状态并随后将发动机运行在 贫困状况与第一个周期相邻的第二个时期。 诊断模块基于在第二时段期间位于所述催化转化器下游的氧传感器的输出来确定催化转化器的催化剂效率，并且基于催化剂效率和催化剂效率的比较来选择性地调节催化转化器的诊断状态 预定的催化剂效率。 燃料抑制事件可以是减速燃料切断事件。 还提供了相关的诊断方法。
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7.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。
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8.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。
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公开(公告)号：US08127744B2
公开(公告)日：2012-03-06
申请号：US12353636
申请日：2009-01-14
CPC分类号： F02P5/1506 , F02D41/0205 , F02D41/0255 , F02D2200/021 , F02P17/02 , Y02T10/26 , Y02T10/46
摘要： An engine control module includes a spark control module, an engine speed module, a residual determination module, and a metric determination module. The spark control module actuates spark plugs based on a commanded spark timing. The engine speed module determines a desired engine speed based on an engine temperature and a period of time an engine is in operation after a cold start. The residual determination module determines a desired spark timing based on the desired engine speed, and determines a residual spark timing based on a difference between the commanded spark timing and the desired spark timing. The metric determination module detects a spark timing fault based on the residual spark timing and a predetermined spark timing range.
摘要翻译： 发动机控制模块包括火花控制模块，发动机转速模块，残余确定模块和度量确定模块。 火花控制模块根据指令的火花定时启动火花塞。 发动机速度模块基于发动机温度和冷启动后发动机运行的时间段来确定期望的发动机转速。 剩余确定模块基于期望的发动机转速确定期望的火花正时，并且基于所指示的火花正时和期望的火花正时之间的差来确定剩余火花正时。 度量确定模块基于剩余火花正时和预定的火花定时范围来检测火花正时故障。
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公开(公告)号：US20100175664A1
公开(公告)日：2010-07-15
申请号：US12353636
申请日：2009-01-14
IPC分类号： F02P5/04
CPC分类号： F02P5/1506 , F02D41/0205 , F02D41/0255 , F02D2200/021 , F02P17/02 , Y02T10/26 , Y02T10/46
摘要： An engine control module includes a spark control module, an engine speed module, a residual determination module, and a metric determination module. The spark control module actuates spark plugs based on a commanded spark timing. The engine speed module determines a desired engine speed based on an engine temperature and a period of time an engine is in operation after a cold start. The residual determination module determines a desired spark timing based on the desired engine speed, and determines a residual spark timing based on a difference between the commanded spark timing and the desired spark timing. The metric determination module detects a spark timing fault based on the residual spark timing and a predetermined spark timing range.
摘要翻译： 发动机控制模块包括火花控制模块，发动机转速模块，残余确定模块和度量确定模块。 火花控制模块根据指令的火花定时启动火花塞。 发动机速度模块基于发动机温度和冷启动后发动机运行的时间段来确定期望的发动机转速。 剩余确定模块基于期望的发动机转速确定期望的火花正时，并且基于所指示的火花正时和期望的火花正时之间的差来确定剩余火花正时。 度量确定模块基于剩余火花正时和预定的火花定时范围来检测火花正时故障。
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