公开(公告)号：US20080245129A1

公开(公告)日：2008-10-09

申请号：US11732497

申请日：2007-04-03

申请人： Zhong Wang ,  John F. Van Gilder ,  Gary L. Rogers ,  Scott A. Kegebein ,  Wenbo Wang

发明人： Zhong Wang ,  John F. Van Gilder ,  Gary L. Rogers ,  Scott A. Kegebein ,  Wenbo Wang

IPC分类号： G01F25/00

CPC分类号： G01F25/0061

摘要： A diagnostic system and method for detecting failures in a fuel system of a vehicle includes a fuel level monitoring module that determines a first change in a first fuel level of a first fuel tank based on data received from a first fuel level sensor and determines a second change in a second fuel level of a second fuel tank based on data received from a second fuel level sensor. A sensor diagnosing module evaluates operation of the second fuel level sensor based on the first change in the first fuel level.

摘要翻译： 一种用于检测车辆的燃料系统中的故障的诊断系统和方法，包括燃料液位监控模块，其基于从第一燃料液位传感器接收的数据确定第一燃料箱的第一燃料液位的第一变化，并且确定第二 基于从第二燃料液位传感器接收的数据，改变第二燃料箱的第二燃料液位。 传感器诊断模块基于第一燃料液位的第一变化来评估第二燃料液位传感器的操作。

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。

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

IPC分类号： F01N11/00 ,  F01N3/20 ,  F01N3/025

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。

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

IPC分类号： F01N3/20 ,  F01N3/021 ,  F01N3/10 ,  F01N11/00 ,  F01N13/02

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：US08868282B2

公开(公告)日：2014-10-21

申请号：US13613814

申请日：2012-09-13

申请人： Peter John Giles ,  John F. Van Gilder

发明人： Peter John Giles ,  John F. Van Gilder

IPC分类号： G01M17/00

CPC分类号： G05B23/0235 ,  B60W20/50 ,  B60W50/035

摘要： A method for diagnosing a device of a vehicle, includes: generating samples of a parameter of the device; indicating whether each of the samples passed or failed based on comparisons of the samples with one of a predetermined value and a predetermined range; tracking a first number of consecutive samples compared, a second number of the first number of samples that failed, a third number of the first number of samples that failed consecutively, and a fourth number of a last predetermined number of samples compared that failed; selecting one of a normal control mode, a temporary default action mode and a permanent default action mode based on the first, second, third, and fourth numbers; and selectively setting a diagnostic trouble code (DTC) in memory when in the permanent default action mode.

摘要翻译： 一种用于诊断车辆的装置的方法，包括：生成所述装置的参数的样本; 基于样本与预定值和预定范围中的一个进行比较来指示每个样本是否通过或失败; 跟踪比较的第一数量的连续样本，失败的第一数量的样本的第二数量，连续失败的第一数量的样本的第三数量和与之相比的最后一个预定数量的样本失败; 基于第一，第二，第三和第四数字选择正常控制模式，临时默认动作模式和永久默认动作模式之一; 并在永久默认动作模式下选择性地设置内存中的诊断故障代码（DTC）。

公开(公告)号：US20100125401A1

公开(公告)日：2010-05-20

申请号：US12491480

申请日：2009-06-25

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

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

IPC分类号： F02D41/00 ,  F01P9/04 ,  F01P7/14

CPC分类号： F02D41/22 ,  F01P7/167 ,  F02D41/068 ,  F02D41/18 ,  Y02T10/40

摘要： A control system for an engine includes an air calculation module that determines, based on a plurality of first coolant temperatures sensed during a period of engine operation, a first cumulative mass of intake air combusted by the engine during the period that corresponds to an estimated amount of heat dissipated by a cooling system of the engine during the period, and that determines, based on the first cumulative mass, a second cumulative mass of intake air of the engine that is required to raise a temperature of the engine from an initial temperature at a start of the period to a target temperature. The control system further includes a control module that selectively adjusts one of a diagnostic condition and an operating condition of the engine based on the second cumulative mass. A related method for controlling an engine is also provided.

摘要翻译： 用于发动机的控制系统包括空气计算模块，该空气计算模块基于在发动机操作期间感测到的多个第一冷却剂温度，确定在对应于估计量的时段期间由发动机燃烧的进气的第一累积质量 在该期间由发动机的冷却系统消散的热，并且其基于第一累积质量确定发动机的进气的第二累计质量，所述第二累积质量是引擎的温度从初始温度升高 一段时间到目标温度的开始。 所述控制系统还包括控制模块，所述控制模块基于所述第二累积质量选择性地调节所述发动机的诊断条件和操作状态之一。 还提供了一种用于控制发动机的相关方法。

公开(公告)号：US06763708B2

公开(公告)日：2004-07-20

申请号：US09919489

申请日：2001-07-31

申请人： Thomas L. Ting ,  John F. Van Gilder

发明人： Thomas L. Ting ,  John F. Van Gilder

IPC分类号： G01M1900

CPC分类号： F02D41/0072 ,  F02D41/145 ,  F02D41/187 ,  F02D41/221 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02D2200/0408 ,  F02D2200/703 ,  Y02T10/47

摘要： A process for computer based, wholly passive, diagnosis of an automotive vehicle exhaust gas recirculation system is disclosed. Use is made of any suitable math model of the vehicle's air intake system to estimate the absolute pressure in the intake manifold, MAP, assuming both a healthy EGR system, MAPHE, and a faulty EGR valve, MAPFE. Both estimated values are compared with the actual normally measured manifold pressure, MAPmeas. Both comparisons are repeated over many calculations and the differences analyzed to reliably determine whether there is a real restriction to recirculated exhaust flow. A preferred math model of the intake system uses as input variables: mass air flow, barometric pressure, the position command for the EGR valve and engine speed.

摘要翻译： 公开了一种用于基于计算机的，完全被动的诊断汽车废气再循环系统的方法。 使用车辆进气系统的任何合适的数学模型来估计进气歧管MAP中的绝对压力，假设健康的EGR系统MAPHE和故障EGR阀MAPFE。 将两个估计值与实际通常测量的歧管压力MAPmeas进行比较。 在许多计算中重复了两次比较，并且分析的差异可靠地确定是否对再循环排气流有实际限制。 进气系统的优选数学模型用作输入变量：质量空气流量，大气压力，EGR阀的位置指令和发动机转速。

公开(公告)号：US06701282B2

公开(公告)日：2004-03-02

申请号：US09961537

申请日：2001-09-20

申请人： Thomas L. Ting ,  John F. Van Gilder

发明人： Thomas L. Ting ,  John F. Van Gilder

IPC分类号： G06F500

CPC分类号： F02D41/22 ,  F02D11/107 ,  F02D41/1401 ,  F02D41/187 ,  F02D2200/0402 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/704 ,  Y02T10/40

摘要： A fault identification system for intake system sensors according to the invention includes a throttle position sensor (TPS), a manifold absolute pressure (MAP) sensor, and a mass airflow (MAF) sensor. A diagnostic controller is coupled to the TPS, the MAP sensor and the MAF sensor. The diagnostic controller implements a throttle model, a first intake model and a second intake model and correctly identifies faults in the TPS, the MAP sensor and the MAF sensor. The throttle model generates a mass airflow estimate. The first intake model generates a first MAP estimate. The second intake model generates a second MAP estimate. The diagnostic controller applies residual calculations on outputs of the throttle model, the first intake model and the second intake model. The diagnostic controller applies a first order lag filter on the residual calculations. The diagnostic controller accesses a truth table to identify faults in the TPS, the MAP sensor and the MAF sensor.

摘要翻译： 根据本发明的进气系统传感器的故障识别系统包括节气门位置传感器（TPS），歧管绝对压力（MAP）传感器和质量气流（MAF）传感器。 诊断控制器耦合到TPS，MAP传感器和MAF传感器。 诊断控制器实现节气门模型，第一进气模型和第二进气模型，并且正确识别TPS，MAP传感器和MAF传感器中的故障。 节气门模型产生质量气流估计。 第一个摄像模型生成第一个MAP估计。 第二进气模型产生第二MAP估计。 诊断控制器对油门模型，第一进气模型和第二进气模型的输出进行残差计算。 诊断控制器对残差计算器应用一阶滞后滤波器。 诊断控制器访问真值​​表以识别TPS，MAP传感器和MAF传感器中的故障。

公开(公告)号：US08635006B2

公开(公告)日：2014-01-21

申请号：US12491480

申请日：2009-06-25

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

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

IPC分类号： G06F19/00 ,  G06G7/64

CPC分类号： F02D41/22 ,  F01P7/167 ,  F02D41/068 ,  F02D41/18 ,  Y02T10/40

摘要： A control system for an engine includes an air calculation module that determines, based on a plurality of first coolant temperatures sensed during a period of engine operation, a first cumulative mass of intake air combusted by the engine during the period that corresponds to an estimated amount of heat dissipated by a cooling system of the engine during the period, and that determines, based on the first cumulative mass, a second cumulative mass of intake air of the engine that is required to raise a temperature of the engine from an initial temperature at a start of the period to a target temperature. The control system further includes a control module that selectively adjusts one of a diagnostic condition and an operating condition of the engine based on the second cumulative mass. A related method for controlling an engine is also provided.

摘要翻译： 用于发动机的控制系统包括空气计算模块，该空气计算模块基于在发动机操作期间感测到的多个第一冷却剂温度，确定在对应于估计量的时段期间由发动机燃烧的进气的第一累积质量 在该期间由发动机的冷却系统消散的热，并且其基于第一累积质量确定发动机的进气的第二累计质量，所述第二累积质量是引擎的温度从初始温度升高 一段时间到目标温度的开始。 所述控制系统还包括控制模块，所述控制模块基于所述第二累积质量选择性地调节所述发动机的诊断条件和操作状态之一。 还提供了一种用于控制发动机的相关方法。

公开(公告)号：US08346424B2

公开(公告)日：2013-01-01

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： B60L9/00

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。