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    Torque model-based cold start diagnostic systems and methods
    1.
    发明授权
    Torque model-based cold start diagnostic systems and methods 有权
    基于扭矩模型的冷启动诊断系统和方法

    公开(公告)号：US08364376B2

    公开(公告)日：2013-01-29

    申请号：US12394716

    申请日：2009-02-27

    申请人： Lan Wang ,  Robert J. Genslak ,  Wenbo Wang ,  Matthew Squire ,  Jinchun Peng ,  Edward Stuteville ,  Kurt D. McLain

    发明人： Lan Wang ,  Robert J. Genslak ,  Wenbo Wang ,  Matthew Squire ,  Jinchun Peng ,  Edward Stuteville ,  Kurt D. McLain

    IPC分类号： G06F19/00 ,  G06G7/70 ,  F01N3/00

    CPC分类号： F02D41/0255 ,  F02D41/1447 ,  F02D41/18 ,  F02D2200/0414 ,  F02D2200/0802 ,  Y02T10/26

    摘要： A control system for an engine having a catalytic converter includes an energy calculation module that calculates a calculated mass air flow (MAF) of intake air of the engine based on a requested torque and a requested spark timing that correspond to a desired thermal energy of exhaust of the engine, and that determines an expected thermal energy of the exhaust based on the calculated MAF, and an energy residual module that determines a thermal energy residual of the exhaust based on the expected thermal energy and an estimated thermal energy of the exhaust, wherein the estimated thermal energy is based on a measured MAF of the intake air. The control system includes an energy evaluation module that determines a diagnostic result that indicates whether the catalytic converter is operating within a target temperature range based on the thermal energy residual. Related control methods are also provided.

    摘要翻译： 一种用于具有催化转化器的发动机的控制系统，包括能量计算模块，该能量计算模块基于所要求的扭矩和与期望的排气热能相对应的所要求的火花正时来计算发动机的进气的计算质量空气流量（MAF） 并且基于所计算的MAF确定排气的预期热能;以及能量残余模块，其基于预期的热能和所估计的排气的热能来确定排气的热能残余，其中 估计的热能基于进气的测量MAF。 控制系统包括能量评估模块，该能量评估模块基于热能残差确定指示催化转化器是否在目标温度范围内运行的诊断结果。 还提供了相关的控制方法。

    TORQUE MODEL-BASED COLD START DIAGNOSTIC SYSTEMS AND METHODS
    2.
    发明申请
    TORQUE MODEL-BASED COLD START DIAGNOSTIC SYSTEMS AND METHODS 有权
    基于模型的冷启动诊断系统和方法

    公开(公告)号：US20100222982A1

    公开(公告)日：2010-09-02

    申请号：US12394716

    申请日：2009-02-27

    申请人： Lan Wang ,  Robert J. Genslak ,  Wenbo Wang ,  Matthew Squire ,  Jinchun Peng ,  Edward Stutevilie ,  Kurt D. McLain

    发明人： Lan Wang ,  Robert J. Genslak ,  Wenbo Wang ,  Matthew Squire ,  Jinchun Peng ,  Edward Stutevilie ,  Kurt D. McLain

    IPC分类号： F02D43/00

    CPC分类号： F02D41/0255 ,  F02D41/1447 ,  F02D41/18 ,  F02D2200/0414 ,  F02D2200/0802 ,  Y02T10/26

    摘要： A control system for an engine having a catalytic converter includes an energy calculation module that calculates a calculated mass air flow (MAF) of intake air of the engine based on a requested torque and a requested spark timing that correspond to a desired thermal energy of exhaust of the engine, and that determines an expected thermal energy of the exhaust based on the calculated MAF, and an energy residual module that determines a thermal energy residual of the exhaust based on the expected thermal energy and an estimated thermal energy of the exhaust, wherein the estimated thermal energy is based on a measured MAF of the intake air. The control system includes an energy evaluation module that determines a diagnostic result that indicates whether the catalytic converter is operating within a target temperature range based on the thermal energy residual. Related control methods are also provided.

    摘要翻译： 一种用于具有催化转化器的发动机的控制系统，包括能量计算模块，该能量计算模块基于所要求的扭矩和与期望的排气热能相对应的所要求的火花正时来计算发动机的进气的计算质量空气流量（MAF） 并且基于所计算的MAF确定排气的预期热能;以及能量残余模块，其基于预期的热能和所估计的排气的热能来确定排气的热能残余，其中 估计的热能基于进气的测量MAF。 控制系统包括能量评估模块，该能量评估模块基于热能残差确定指示催化转化器是否在目标温度范围内运行的诊断结果。 还提供了相关的控制方法。

    COLD START ENGINE CONTROL DIAGNOSTIC SYSTEMS AND METHODS
    3.
    发明申请
    COLD START ENGINE CONTROL DIAGNOSTIC SYSTEMS AND METHODS 有权
    冷启动发动机控制诊断系统和方法

    公开(公告)号：US20100175664A1

    公开(公告)日：2010-07-15

    申请号：US12353636

    申请日：2009-01-14

    申请人： Robert J. Genslak ,  Edward Stuteville ,  Wenbo Wang ,  Wesley W. Wald

    发明人： Robert J. Genslak ,  Edward Stuteville ,  Wenbo Wang ,  Wesley W. Wald

    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。

    Cold start engine control diagnostic systems and methods
    4.
    发明授权
    Cold start engine control diagnostic systems and methods 有权
    冷启动发动机控制诊断系统和方法

    公开(公告)号：US08127744B2

    公开(公告)日：2012-03-06

    申请号：US12353636

    申请日：2009-01-14

    申请人： Robert J. Genslak ,  Edward Stuteville ,  Wenbo Wang ,  Wesley W. Wald

    发明人： Robert J. Genslak ,  Edward Stuteville ,  Wenbo Wang ,  Wesley W. Wald

    IPC分类号： F02P5/04 ,  F02P5/15

    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。

    SYSTEM AND METHOD FOR MONITORING CATALYST EFFICIENCY AND POST-CATALYST OXYGEN SENSOR PERFORMANCE
    7.
    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

    申请人： Wesley W. Wald ,  Robert J. Genslak ,  Edward Stuteville ,  Igor Anilovich

    发明人： Wesley W. Wald ,  Robert J. Genslak ,  Edward Stuteville ,  Igor Anilovich

    IPC分类号： F01N11/00 ,  F01N3/10 ,  F01N9/00

    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。

    System and method for monitoring catalyst efficiency and post-catalyst oxygen sensor performance
    8.
    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

    申请人： Wesley W. Wald ,  Robert J. Genslak ,  Edward Stuteville ,  Igor Anilovich

    发明人： Wesley W. Wald ,  Robert J. Genslak ,  Edward Stuteville ,  Igor Anilovich

    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。

    CATALYST OXYGEN STORAGE CAPACITY ADJUSTMENT SYSTEMS AND METHODS
    9.
    发明申请
    CATALYST OXYGEN STORAGE CAPACITY ADJUSTMENT SYSTEMS AND METHODS 有权
    催化氧气储存能力调节系统和方法

    公开(公告)号：US20130054083A1

    公开(公告)日：2013-02-28

    申请号：US13221135

    申请日：2011-08-30

    申请人： Robert J. Genslak ,  Robert E. Heger ,  Edward Stuteville ,  Jerry J. Sheahan ,  Thomas J. Large

    发明人： Robert J. Genslak ,  Robert E. Heger ,  Edward Stuteville ,  Jerry J. Sheahan ,  Thomas J. Large

    IPC分类号： G01M15/04

    CPC分类号： F01N11/007 ,  F01N3/101 ,  F01N2550/02 ,  F02D41/0295 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/22 ,  F02D2200/0816 ,  Y02A50/2324 ,  Y02T10/22 ,  Y02T10/47

    摘要： A system for a vehicle includes an oxygen storage capacity (OSC) determination module, a delay determination module, a correction module, and a fault detection module. The OSC determination module determines an OSC period of a catalyst of an exhaust system based on first and second amounts of oxygen measured using first and second oxygen sensors located upstream and downstream of the catalyst, respectively. The delay determination module determines a delay period of the second oxygen sensor. The correction module sets a corrected OSC period for the catalyst based on a difference between the OSC period and the delay period. The fault detection module selectively indicates that a fault is present in the catalyst based on the corrected OSC period.

    摘要翻译： 一种用于车辆的系统包括储氧容量（OSC）确定模块，延迟确定模块，校正模块和故障检测模块。 OSC确定模块基于分别位于催化剂上游和下游的第一和第二氧传感器测量的第一和第二氧气量来确定排气系统的催化剂的OSC周期。 延迟确定模块确定第二氧传感器的延迟周期。 校正模块基于OSC周期和延迟周期之间的差异来设定催化剂的校正OSC周期。 故障检测模块基于校正的OSC周期选择性地指示催化剂中存在故障。