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    Rough road detection system using normalization analysis
    3.
    发明授权
    Rough road detection system using normalization analysis 有权
    粗路检测系统采用归一化分析

    公开(公告)号：US07325446B1

    公开(公告)日：2008-02-05

    申请号：US11428010

    申请日：2006-06-30

    申请人： Tameem K. Assaf ,  Sanjeev M. Naik ,  David S. Mathews

    发明人： Tameem K. Assaf ,  Sanjeev M. Naik ,  David S. Mathews

    IPC分类号： G01M15/00

    CPC分类号： G01M15/11

    摘要： A rough road detection system for an engine having a crankshaft includes a control module and a comparison module. The control module receives a crankshaft speed signal and determines a crankshaft rotation time and a crankshaft acceleration and jerk. The crankshaft rotation time is based on said crankshaft speed signal. The crankshaft acceleration and jerk are based on said crankshaft rotation time. The control module detects a crankshaft disturbance based on said crankshaft acceleration and jerk and counts a number of crankshaft disturbances. The comparison module determines a dispersion value and asymmetry value based on the crankshaft disturbances and determined whether rough road conditions exist based on first and second comparisons. The first comparison is between the dispersion value and a first predetermined threshold. The second comparison is between the asymmetry value and a second predetermined threshold.

    摘要翻译： 用于具有曲轴的发动机的粗糙道路检测系统包括控制模块和比较模块。 控制模块接收曲轴速度信号并确定曲轴旋转时间和曲轴加速度和加速度。 曲轴旋转时间基于所述曲轴速度信号。 曲轴加速度和加加速度基于所述曲轴旋转时间。 控制模块基于所述曲轴加速度和加加速度来检测曲轴扰动，并且对多个曲轴扰动进行计数。 比较模块基于曲轴扰动确定色散值和不对称值，并基于第一和第二比较确定是否存在粗糙的道路状况。 第一比较是在色散值和第一预定阈值之间。 第二比较在不对称值和第二预定阈值之间。

    Rough road detection system
    6.
    发明授权
    Rough road detection system 有权
    粗路检测系统

    公开(公告)号：US07240540B2

    公开(公告)日：2007-07-10

    申请号：US11263174

    申请日：2005-10-31

    申请人： Tameem K. Assaf ,  David S. Mathews ,  Sanjeev M. Naik

    发明人： Tameem K. Assaf ,  David S. Mathews ,  Sanjeev M. Naik

    IPC分类号： G01B5/28

    CPC分类号： G01M15/11 ,  B60T2210/14

    摘要： A rough road detection system includes a collection module, a statistical module, and a comparison module. The collection module collects samples from a vibration sensitive signal. The statistical module removes a periodic anomaly from the samples and removes a random anomaly from the samples with a filter having a filter coefficient based on an engine speed signal. In addition, the statistical module calculates a statistical signal based on the samples. The rough road detection system also includes a derivative module that calculates a first and second derivative based on a rate or time. The derivative module removes negative derivatives when the derivatives are calculated with respect to the rate and positive derivatives when the derivatives are calculated with respect to time. The comparison module determines whether a rough road condition exists based on the statistical signal or the first and second derivatives.

    摘要翻译： 粗糙的道路检测系统包括收集模块，统计模块和比较模块。 收集模块从振动敏感信号收集样品。 统计模块从样本中去除周期异常，并从具有基于发动机转速信号的滤波器系数的滤波器的样本中去除随机异常。 此外，统计模块基于样本计算统计信号。 粗糙道路检测系统还包括基于速率或时间来计算第一和第二导数的导数模块。 当衍生物相对于时间计算时，当相对于速率和正衍生物计算衍生物时，衍生模块去除负衍生物。 比较模块基于统计信号或第一和第二导数来确定是否存在粗暴的道路状况。

    CYLINDER COMBUSTION PERFORMANCE MONITORING AND CONTROL
    8.
    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。

    Cylinder combustion performance monitoring and control
    9.
    发明授权
    Cylinder combustion performance monitoring and control 有权
    气缸燃烧性能监测与控制

    公开(公告)号：US08392096B2

    公开(公告)日：2013-03-05

    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： G06F19/00

    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。