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    LARGE LEAK DIAGNOSTIC TOOL FOR A SEALED FUEL SYSTEM IN A VEHICLE
    31.
    发明申请
    LARGE LEAK DIAGNOSTIC TOOL FOR A SEALED FUEL SYSTEM IN A VEHICLE 有权
    用于汽车密封燃料系统的大型泄漏诊断工具

    公开(公告)号：US20120079873A1

    公开(公告)日：2012-04-05

    申请号：US12895907

    申请日：2010-10-01

    申请人： Robert Jackson ,  William R. Cadman ,  John F. Van Gilder

    发明人： Robert Jackson ,  William R. Cadman ,  John F. Van Gilder

    IPC分类号： G01M3/34

    CPC分类号： G01M3/34 ,  B60K15/03519 ,  B60K2015/0319 ,  B60K2015/03514 ,  G01M3/025

    摘要： A vehicle includes a sealed fuel system and a controller. The fuel system includes a fuel tank, a fuel cap, a control orifice, and an absolute pressure sensor. The controller associates a threshold large leak in the fuel system with a fuel cap sealing error. The controller detects completion of a prior refueling event, compares measurements from the pressure sensor to a reference vacuum across the control orifice to determine the presence of the threshold large leak, and sets a diagnostic code corresponding to the large leak only upon completion of the prior refueling event. A method for detecting the large leak includes detecting completion of the refueling event, comparing vacuum measurements from the absolute pressure sensor to a reference vacuum across the orifice to determine the presence of the large leak, and setting a diagnostic code corresponding to the large leak only upon completion of the prior refueling event.

    摘要翻译： 车辆包括密封燃料系统和控制器。 燃料系统包括燃料箱，燃料盖，控制孔和绝对压力传感器。 控制器将燃料系统中的阈值大泄漏与燃料盖密封误差相关联。 控制器检测到先前的加油事件的完成，将来自压力传感器的测量值与控制孔口上的参考真空度进行比较，以确定阈值大泄漏的存在，并且仅在先前完成的情况下设置对应于大泄漏的诊断代码 加油事件 用于检测大泄漏的方法包括检测加油事件的完成，将来自绝对压力传感器的真空测量与穿过孔的参考真空进行比较，以确定是否存在大泄漏，并且设置对应于大泄漏的诊断代码 完成以前的加油事件。

    METHOD OF MONITORING IN-USE PERFORMANCE RATIOS OF ONBOARD DIAGNOSTIC SYSTEMS FOR PLUG-IN HYBRID ELECTRIC VEHICLES
    32.
    发明申请
    METHOD OF MONITORING IN-USE PERFORMANCE RATIOS OF ONBOARD DIAGNOSTIC SYSTEMS FOR PLUG-IN HYBRID ELECTRIC VEHICLES 有权
    监控插入式混合动力车辆的车载诊断系统的使用性能比率的方法

    公开(公告)号：US20120072060A1

    公开(公告)日：2012-03-22

    申请号：US12942261

    申请日：2010-11-09

    申请人： Andrew M. Zettel ,  John F. Van Gilder ,  Saul Scott

    发明人： Andrew M. Zettel ,  John F. Van Gilder ,  Saul Scott

    IPC分类号： G06F17/00

    CPC分类号： B60W20/11 ,  B60W10/06 ,  B60W20/00 ,  B60W20/50 ,  B60W50/0205 ,  B60W2530/14 ,  B60W2530/18 ,  G07C5/0808 ,  Y02T10/6269 ,  Y02T90/14

    摘要： A method of monitoring an onboard diagnostic system for a plug-in hybrid electric vehicle includes incrementing the denominator of an N/D ratio for the onboard diagnostic system only when a total time criteria, a vehicle speed criteria and an idle criteria are satisfied after an internal combustion engine of the vehicle has been fueled. The diagnostic system performance is summarized into a single N/D ratio. When an underperforming ratio is identified, the system controls the engine to provide more engine operation and subsequent diagnostic observability. The denominator of the N/D ratio is compared to a verification denominator to identify vehicles that are typically operated in a manner such that an engine-on cycle does not begin, or is not identified, until very near the end of the drive cycle, thereby preventing the denominator and a numerator of the N/D ratio from incrementing, and thereby providing a false passing performance ratio.

    摘要翻译： 一种用于监视插电式混合动力电动车辆的车载诊断系统的方法包括仅在车辆诊断系统的总时间准则，车辆速度标准和空闲准则满足后才能满足车载诊断系统的N / D比的分母 车辆的内燃机已经燃料。 诊断系统性能总结为单个N / D比。 当发现表现不佳的比例时，系统控制发动机以提供更多的发动机运转和随后的诊断可观测性。 将N / D比的分母与验证分母进行比较，以识别通常以非常接近驱动周期结束时引擎启动周期不开始或不被识别的方式操作的车辆， 从而防止N / D比的分母和分子递增，从而提供错误的通过性能比。

    SYSTEMS AND METHODS FOR DIAGNOSING OXYGEN SENSORS AND CATALYTIC CONVERTERS OF EXHAUST SYSTEMS
    33.
    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

    IPC分类号： F02D41/00 ,  G01M15/10

    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。

    Systems and methods for digital signal processing
    34.
    发明申请
    Systems and methods for digital signal processing 有权
    数字信号处理系统和方法

    公开(公告)号：US20080224888A1

    公开(公告)日：2008-09-18

    申请号：US11717802

    申请日：2007-03-13

    申请人： Wajdi B. Hamama ,  John F. Van Gilder

    发明人： Wajdi B. Hamama ,  John F. Van Gilder

    IPC分类号： G01V3/00

    CPC分类号： F02D35/027 ,  F02D41/28 ,  F02D2041/285

    摘要： A control system for a vehicle is provided. The control system includes a signal processing module that receives a sensor signal and extracts a plurality of sample points from the sensor signal. A computation module computes a summation of the sample points, computes a summation of squares of the sample points, and computes a standard deviation based on the summation of the sample points and the summation of the squares of the sample points. A control module generates a control signal based on the sensor signal and the standard deviation.

    摘要翻译： 提供一种用于车辆的控制系统。 控制系统包括信号处理模块，其接收传感器信号并从传感器信号中提取多个采样点。 计算模块计算采样点的求和，计算采样点的平方和，并根据采样点的求和和采样点平方和的总和计算标准偏差。 控制模块基于传感器信号和标准偏差产生控制信号。

    Systems and methods for diagnosing oxygen sensors and catalytic converters of exhaust systems
    35.
    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

    IPC分类号： F02D41/00 ,  F01N11/00 ,  G01M15/10

    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。

    NITROGEN DIOXIDE GENERATION DIAGNOSTIC FOR A DIESEL AFTER-TREATMENT SYSTEM
    36.
    发明申请
    NITROGEN DIOXIDE GENERATION DIAGNOSTIC FOR A DIESEL AFTER-TREATMENT SYSTEM 有权
    用于柴油后处理系统的氮氧化物生成诊断

    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

    IPC分类号： F01N11/00 ,  F02B37/00 ,  F01N3/10

    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。

    EFFICIENCY DETERMINATION FOR A SELECTIVE-CATALYTIC-REDUCTION CATALYST
    38.
    发明申请
    EFFICIENCY DETERMINATION FOR A SELECTIVE-CATALYTIC-REDUCTION CATALYST 有权
    选择性催化还原催化剂的有效性测定

    公开(公告)号：US20120280819A1

    公开(公告)日：2012-11-08

    申请号：US13101348

    申请日：2011-05-05

    申请人： Janean E Kowalkowski ,  Stephen Paul Levijoki ,  John F. Van Gilder

    发明人： Janean E Kowalkowski ,  Stephen Paul Levijoki ,  John F. Van Gilder

    IPC分类号： G08B17/10 ,  G01M15/10 ,  F01N11/00

    CPC分类号： F01N3/2066 ,  F01N11/00 ,  F01N2550/02 ,  F01N2900/0404 ,  F01N2900/1621 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    摘要： A method of assessing overall efficiency of a selective-catalytic-reduction catalyst includes monitoring instantaneous efficiency of the catalyst. The method also includes determining the overall efficiency by summing instantaneous efficiency values weighted by a first set of coefficients if the most recent instantaneous efficiency value is above an instantaneous efficiency threshold. The method additionally includes determining the overall efficiency by summing instantaneous efficiency values weighted by a second set of coefficients if the most recent instantaneous efficiency value is equal to or below the instantaneous efficiency threshold. Furthermore, the method includes determining whether the overall efficiency has dropped below an overall efficiency threshold and reporting when the overall efficiency has dropped below the overall efficiency threshold. The second set of coefficients weighs the most recent instantaneous efficiency value more heavily than preceding instantaneous efficiency values as compared with the first set of coefficients. A system and a vehicle are also disclosed.

    摘要翻译： 评估选择性催化还原催化剂总效率的方法包括监测催化剂的瞬时效率。 该方法还包括如果最近的瞬时效率值高于瞬时效率阈值，则通过对由第一组系数加权的瞬时效率值求和来确定总体效率。 该方法还包括如果最近的瞬时效率值等于或低于瞬时效率阈值，则通过对由第二组系数加权的瞬时效率值求和来确定总体效率。 此外，该方法包括确定总体效率是否降低到总效率阈值以下，以及当总体效率降低到总效率阈值以下时报告。 与第一组系数相比，第二组系数比先前的瞬时效率值更重要地计算最近的瞬时效率值。 还公开了一种系统和车辆。