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    • 2. 发明授权
    • Rough road detection system using normalization analysis
    • 粗路检测系统采用归一化分析
    • US07325446B1
    • 2008-02-05
    • US11428010
    • 2006-06-30
    • Tameem K. AssafSanjeev M. NaikDavid S. Mathews
    • Tameem K. AssafSanjeev M. NaikDavid S. Mathews
    • G01M15/00
    • G01M15/11
    • 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.
    • 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。
    • 4. 发明申请
    • CYLINDER COMBUSTION PERFORMANCE MONITORING AND CONTROL
    • 气缸燃烧性能监测与控制
    • US20110253101A1
    • 2011-10-20
    • US12762523
    • 2010-04-19
    • David S. MathewsTameem K. AssafJohn V. BowmanKenneth J. BusleppJulian R. Verdejo
    • David S. MathewsTameem K. AssafJohn V. BowmanKenneth J. BusleppJulian R. Verdejo
    • F02P5/04
    • F02P5/045F02D2200/1004
    • 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.
    • 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。
    • 6. 发明授权
    • Cylinder combustion performance monitoring and control
    • 气缸燃烧性能监测与控制
    • US08392096B2
    • 2013-03-05
    • US12762523
    • 2010-04-19
    • David S. MathewsTameem K. AssafJohn V. BowmanKenneth J. BusleppJulian R. Verdejo
    • David S. MathewsTameem K. AssafJohn V. BowmanKenneth J. BusleppJulian R. Verdejo
    • G06F19/00
    • F02P5/045F02D2200/1004
    • 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.
    • 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。