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12 条记录 (耗时 0.015 秒)

    Method and system for root cause analysis and quality monitoring of system-level faults
    1.
    发明授权
    Method and system for root cause analysis and quality monitoring of system-level faults 有权
    系统级故障根本原因分析和质量监测方法与系统

    公开(公告)号：US08732112B2

    公开(公告)日：2014-05-20

    申请号：US13329816

    申请日：2011-12-19

    申请人： Satnam Singh ,  John V Bowman

    发明人： Satnam Singh ,  John V Bowman

    IPC分类号： G06F17/00 ,  G06N5/02

    CPC分类号： G05B23/0275 ,  G07C5/0816

    摘要： System fault codes, component fault codes, and failure modes may be received at a system. A first level model comprising first level causal relationships and first level causal weights between the system fault codes and the component fault codes may be generated. A second level model comprising second level causal relationships and second level causal weights between the component fault codes and the failure modes may be generated. The first level model and the second level model may be combined to generate a model such as graphical model. One or more causal probabilities may be determined using the graphical model.

    摘要翻译： 可以在系统处接收系统故障代码，组件故障代码和故障模式。 可以生成包括系统故障代码和部件故障代码之间的一级因果关系和一级因果权重的第一级模型。 可以生成包括组件故障代码和故障模式之间的二级因果关系和第二级因果权重的第二级模型。 可以组合第一级模型和第二级模型以生成诸如图形模型的模型。 可以使用图形模型确定一个或多个因果概率。

    SYSTEM AND METHOD FOR DETECTING MISFIRE BASED ON A FIRING PATTERN OF AN ENGINE AND ENGINE TORQUE
    2.
    发明申请
    SYSTEM AND METHOD FOR DETECTING MISFIRE BASED ON A FIRING PATTERN OF AN ENGINE AND ENGINE TORQUE 有权
    基于发动机和发动机扭矩的燃烧模式检测故障的系统和方法

    公开(公告)号：US20130312504A1

    公开(公告)日：2013-11-28

    申请号：US13477627

    申请日：2012-05-22

    申请人： John V. Bowman ,  David S. Mathews

    发明人： John V. Bowman ,  David S. Mathews

    IPC分类号： G01M15/11

    CPC分类号： F02D41/1498 ,  F02D41/0097 ,  F02D41/22 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2200/1012 ,  F02D2200/1015

    摘要： A system according to the principles of the present disclosure includes a threshold determination module and a misfire detection module. The threshold determination module determines at least one of an acceleration threshold and a jerk threshold based on a misfire type. The misfire detection module detects a misfire in a cylinder of an engine when: (i) crankshaft acceleration is less than the acceleration threshold; and/or (ii) crankshaft jerk is less than the jerk threshold. Crankshaft jerk is a derivative of crankshaft acceleration with respect to time.

    摘要翻译： 根据本公开的原理的系统包括阈值确定模块和失火检测模块。 阈值确定模块基于失火类型来确定加速度阈值和加加速度阈值中的至少一个。 当以下情况时，失火检测模块检测发动机气缸中的失火：（i）曲轴加速度小于加速度阈值; 和/或（ii）曲轴加速度小于加加速度阈值。 曲轴加速度是相对于时间曲轴加速度的导数。

    CYLINDER COMBUSTION PERFORMANCE MONITORING AND CONTROL
    4.
    发明申请
    CYLINDER COMBUSTION PERFORMANCE MONITORING AND CONTROL 有权
    气缸燃烧性能监测与控制

    公开(公告)号：US20110253101A1

    公开(公告)日：2011-10-20

    申请号：US12762523

    申请日：2010-04-19

    申请人： David S. Mathews ,  Tameem K. Assaf ,  John V. Bowman ,  Kenneth J. Buslepp ,  Julian R. Verdejo

    发明人： David S. Mathews ,  Tameem K. Assaf ,  John V. Bowman ,  Kenneth J. Buslepp ,  Julian R. Verdejo

    IPC分类号： F02P5/04

    CPC分类号： F02P5/045 ,  F02D2200/1004

    摘要： An engine control system includes a disturbance module, a misfire threshold determination module, a disturbance ratio module, and a spark control module. The disturbance module determines a disturbance value for a past combustion stroke of a cylinder based on rotation of a crankshaft. The misfire threshold determination module determines a jerk value indicative of a misfire within the cylinder. The disturbance ratio module determines a disturbance ratio for the past combustion stroke based on the disturbance value and the jerk value. The spark control module determines a spark timing for a future combustion stroke of the cylinder, determines a spark timing correction for the future combustion stroke based on the disturbance ratio, determines a corrected spark timing based on the spark timing and the spark timing correction, and generates spark during the future combustion stroke based on the corrected spark timing.

    摘要翻译： 发动机控制系统包括干扰模块，失火阈值确定模块，扰动比模块和火花控制模块。 干扰模块基于曲轴的旋转来确定气缸的过去燃烧冲程的干扰值。 失火阈值确定模块确定指示气缸内的失火的冲击值。 干扰比模块根据扰动值和冲击值确定过去燃烧行程的扰动比。 火花控制模块确定气缸的未来燃烧冲程的火花正时，基于干扰比确定未来燃烧冲程的火花正时校正，基于火花正时和火花定时校正确定校正的火花正时，以及 基于校正的火花正时，在未来的燃烧冲程期间产生火花。

    METHOD AND SYSTEM FOR ROOT CAUSE ANALYSIS AND QUALITY MONITORING OF SYSTEM-LEVEL FAULTS
    6.
    发明申请
    METHOD AND SYSTEM FOR ROOT CAUSE ANALYSIS AND QUALITY MONITORING OF SYSTEM-LEVEL FAULTS 有权
    系统级故障分析和质量监测的方法和系统

    公开(公告)号：US20130159240A1

    公开(公告)日：2013-06-20

    申请号：US13329816

    申请日：2011-12-19

    申请人： Satnam SINGH ,  John V. Bowman

    发明人： Satnam SINGH ,  John V. Bowman

    IPC分类号： G06N5/04

    CPC分类号： G05B23/0275 ,  G07C5/0816

    摘要： System fault codes, component fault codes, and failure modes may be received at a system. A first level model comprising first level causal relationships and first level causal weights between the system fault codes and the component fault codes may be generated. A second level model comprising second level causal relationships and second level causal weights between the component fault codes and the failure modes may be generated. The first level model and the second level model may be combined to generate a model such as graphical model. One or more causal probabilities may be determined using the graphical model.

    摘要翻译： 可以在系统处接收系统故障代码，组件故障代码和故障模式。 可以生成包括系统故障代码和部件故障代码之间的一级因果关系和一级因果权重的第一级模型。 可以生成包括组件故障代码和故障模式之间的二级因果关系和第二级因果权重的第二级模型。 可以组合第一级模型和第二级模型以生成诸如图形模型的模型。 可以使用图形模型确定一个或多个因果概率。

    System and method for detecting misfire based on a firing pattern of an engine and engine torque
    8.
    发明授权
    System and method for detecting misfire based on a firing pattern of an engine and engine torque 有权
    基于发动机的发射模式和发动机扭矩来检测失火的系统和方法

    公开(公告)号：US08601862B1

    公开(公告)日：2013-12-10

    申请号：US13477627

    申请日：2012-05-22

    申请人： John V. Bowman ,  David S. Mathews

    发明人： John V. Bowman ,  David S. Mathews

    IPC分类号： G01M15/04

    CPC分类号： F02D41/1498 ,  F02D41/0097 ,  F02D41/22 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2200/1012 ,  F02D2200/1015

    摘要： A system according to the principles of the present disclosure includes a threshold determination module and a misfire detection module. The threshold determination module determines at least one of an acceleration threshold and a jerk threshold based on a misfire type. The misfire detection module detects a misfire in a cylinder of an engine when: (i) crankshaft acceleration is less than the acceleration threshold; and/or (ii) crankshaft jerk is less than the jerk threshold. Crankshaft jerk is a derivative of crankshaft acceleration with respect to time.

    摘要翻译： 根据本公开的原理的系统包括阈值确定模块和失火检测模块。 阈值确定模块基于失火类型来确定加速度阈值和加加速度阈值中的至少一个。 当以下情况时，失火检测模块检测发动机气缸中的失火：（i）曲轴加速度小于加速度阈值; 和/或（ii）曲轴加速度小于加加速度阈值。 曲轴加速度是相对于时间曲轴加速度的导数。