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1. 发明授权

US07353803B2 Misfire detection apparatus for internal combustion engine based on piston speed 有权
标题翻译：基于活塞速度的内燃机失火检测装置
公开(公告)号：US07353803B2
公开(公告)日：2008-04-08
申请号：US11390974
申请日：2006-03-28
申请人： David S. Mathews , Tameem K. Assaf , David L. St. Pierre
发明人： David S. Mathews , Tameem K. Assaf , David L. St. Pierre
IPC分类号： F02P5/00 , F02M7/00
CPC分类号： G01M15/11 , F02D41/1498 , F02D2200/1015
摘要： The present invention generally includes a method of detecting a misfire in an internal combustion engine. The method includes detecting a first engine speed at a first crankshaft position that corresponds to about a top dead center compression position of a first piston within a first cylinder and detecting a second engine speed at a second crankshaft position that corresponds to about a position subsequent to the top dead center compression position. The method determines whether the misfire occurred in the first cylinder based on the first engine speed and the second engine speed. The method provides an improved signal to noise ratio for engine misfire detection.
摘要翻译：本发明通常包括检测内燃机失火的方法。该方法包括检测在第一曲轴位置处的第一发动机速度，该第一曲轴位置对应于第一气缸内的第一活塞的上止点压缩位置，并且在第二曲轴位置处检测第二发动机转速，该第二曲轴位置对应于上死点压缩位置。该方法基于第一发动机速度和第二发动机转速来确定在第一气缸中是否发生失火。该方法提供了发动机失火检测的改善的信噪比。

2. 发明授权

US07325446B1 Rough road detection system using normalization analysis 有权
标题翻译：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。

3. 发明申请

US20120078485A1 SYSTEMS AND METHODS FOR DETERMINING CRANKSHAFT POSITION BASED INDICATED MEAN EFFECTIVE PRESSURE (IMEP) 有权
标题翻译：基于指示平均有效压力（IMEP）的起重机位置的系统和方法
公开(公告)号：US20120078485A1
公开(公告)日：2012-03-29
申请号：US12984818
申请日：2011-01-05
申请人： Julian R. Verdejo , Nicholas John Kalweit , John V. Bowman , David S. Mathews , Jeffrey A. Morgan , Tameem K. Assaf , James R. Reeder, JR.
发明人： Julian R. Verdejo , Nicholas John Kalweit , John V. Bowman , David S. Mathews , Jeffrey A. Morgan , Tameem K. Assaf , James R. Reeder, JR.
IPC分类号： G01M15/06
CPC分类号： F02D41/009 , F02D35/023 , F02D2200/1004 , F02D2200/101 , G01M15/06
摘要： A system for a vehicle includes a filtering module and an indicated work module. The filtering module generates engine speeds based on positions of teeth of a toothed wheel that rotates with a crankshaft and based on a crankshaft position signal generated by a crankshaft position sensor. The crankshaft position sensor generates the crankshaft position signal based on rotation of the toothed wheel. The indicated work module generates an indicated work for a combustion cycle of a cylinder of an engine based on squares of first and second ones of the engine speeds and outputs the indicated work.
摘要翻译：车辆系统包括过滤模块和指示的工作模块。过滤模块基于与曲轴一起旋转的齿轮的齿的位置并且基于由曲轴位置传感器产生的曲轴位置信号来生成发动机转速。曲轴位置传感器基于齿轮的旋转产生曲轴位置信号。所指示的工作模块基于第一和第二发动机速度的平方，产生用于发动机气缸的燃烧循环的指示的工作，并输出所指示的工作。

4. 发明申请

US20110253101A1 CYLINDER COMBUSTION PERFORMANCE MONITORING AND CONTROL 有权
标题翻译：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。

5. 发明申请

US20110066352A1 SYSTEM AND METHOD FOR ENGINE AND FUEL SYSTEM MAINTENANCE 有权
标题翻译：发动机和燃油系统维护的系统和方法
公开(公告)号：US20110066352A1
公开(公告)日：2011-03-17
申请号：US12761862
申请日：2010-04-16
申请人： John P. Blanchard , Scott J. Chynoweth , Tameem K. Assaf , Jacob S. Tretter , Constantine J. Sasaridis , Michael A. Turley
发明人： John P. Blanchard , Scott J. Chynoweth , Tameem K. Assaf , Jacob S. Tretter , Constantine J. Sasaridis , Michael A. Turley
IPC分类号： F02D28/00
CPC分类号： B60W20/15 , B60L11/02 , B60L2240/36 , B60L2240/80 , B60W10/06 , B60W20/00 , F02D19/0623 , F02D19/0628 , F02D19/0665 , F02D19/084 , F02D19/087 , F02D29/02 , F02N11/0829 , F02N2200/023 , F02N2200/024 , F02N2250/08 , Y02T10/36 , Y02T10/48 , Y02T10/70 , Y02T10/7077
摘要： A control system for a vehicle includes a time determination module, a fuel age determination module, and an engine control module. The time determination module determines an engine off time, wherein the engine off time indicates an amount of time that an engine is off. The fuel age determination module determines an age of fuel in a fuel system of the engine. The engine control module starts the engine when one of the engine off time is greater than a predetermined time threshold and the age of the fuel is greater than a predetermined age threshold.
摘要翻译：用于车辆的控制系统包括时间确定模块，燃料时间确定模块和发动机控制模块。时间确定模块确定发动机关闭时间，其中发动机关闭时间指示发动机关闭的时间量。燃料年龄确定模块确定发动机的燃料系统中的燃料的年龄。当发动机关闭时间之一大于预定时间阈值并且燃料的年龄大于预定的年龄阈值时，发动机控制模块启动发动机。

6. 发明授权

US08392096B2 Cylinder combustion performance monitoring and control 有权
标题翻译：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。

7. 发明申请

US20090120175A1 FILTERING FOR ROUGH ROAD DETECTION 有权
标题翻译：粗糙路面检测过滤
公开(公告)号：US20090120175A1
公开(公告)日：2009-05-14
申请号：US12118016
申请日：2008-05-09
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 , B60W40/072 , B60W40/076 , B60W2510/1045 , B60W2550/147 , F02D41/0225 , F02D41/023 , F02D2200/0404 , F02D2200/1015 , F02D2200/702
摘要： An engine misfire system comprises a rough road detection module and a misfire detection module. The rough road detection module selectively generates a rough road indicator based upon a transmission output speed of a vehicle. The misfire detection module selectively diagnoses engine misfire and selectively generates a misfire indicator based on diagnosed engine misfire and the rough road indicator.
摘要翻译：发动机失火系统包括粗糙的道路检测模块和失火检测模块。粗糙道路检测模块基于车辆的变速器输出速度选择性地生成粗糙道路指示器。失火检测模块选择性地诊断发动机失火，并基于诊断出的发动机失火和粗暴的道路指示器选择性地产生失火指示器。

8. 发明授权

US07188023B1 Misfire detection system for displacement on demand (DOD) engine 有权
标题翻译：位移需求（DOD）发动机失火检测系统
公开(公告)号：US07188023B1
公开(公告)日：2007-03-06
申请号：US11260876
申请日：2005-10-27
申请人： Gregory F. O'Daniel , David S. Mathews , Douglas J. Moening , Tameem K. Assaf
发明人： Gregory F. O'Daniel , David S. Mathews , Douglas J. Moening , Tameem K. Assaf
IPC分类号： F02P5/152 , G01L23/22
CPC分类号： G01M15/11 , F02D41/0087 , F02D2200/1015
摘要： A cylinder misfire control system for a displacement on demand (DOD) engine that is operable in an activated mode and a deactivated mode includes a sensor that is responsive to rotation of a crankshaft of the engine and a first module that calculates a time derivative based on a first time period associated with a first deactivated cylinder and a second time period associated with a second deactivated cylinder. The first and second time periods are based on the rotation of the crankshaft. A second module detects a misfire occurrence in an activated cylinder based on the time period derivative.
摘要翻译：一种用于在激活模式和停用模式下可操作的位移点播（DOD）引擎的气缸失火控制系统包括响应于发动机的曲轴的旋转的传感器和基于第一模块计算时间导数的第一模块与第一停用气缸相关联的第一时间段和与第二停用气缸相关联的第二时间段。第一和第二时间段基于曲轴的旋转。第二模块基于时间段导数来检测激活的气缸中的失火发生。

9. 发明授权

US08768599B2 System and method for engine and fuel system maintenance 有权
标题翻译：发动机和燃油系统维护的系统和方法
公开(公告)号：US08768599B2
公开(公告)日：2014-07-01
申请号：US12761862
申请日：2010-04-16
申请人： John P. Blanchard , Scott J. Chynoweth , Tameem K. Assaf , Jacob S. Tretter , Constantine J. Sasaridis , Michael A. Turley
发明人： John P. Blanchard , Scott J. Chynoweth , Tameem K. Assaf , Jacob S. Tretter , Constantine J. Sasaridis , Michael A. Turley
IPC分类号： B60W10/06 , B60W20/00
CPC分类号： B60W20/15 , B60L11/02 , B60L2240/36 , B60L2240/80 , B60W10/06 , B60W20/00 , F02D19/0623 , F02D19/0628 , F02D19/0665 , F02D19/084 , F02D19/087 , F02D29/02 , F02N11/0829 , F02N2200/023 , F02N2200/024 , F02N2250/08 , Y02T10/36 , Y02T10/48 , Y02T10/70 , Y02T10/7077
摘要： A control system for a vehicle includes a time determination module, a fuel age determination module, and an engine control module. The time determination module determines an engine off time, wherein the engine off time indicates an amount of time that an engine is off. The fuel age determination module determines an age of fuel in a fuel system of the engine. The engine control module starts the engine when one of the engine off time is greater than a predetermined time threshold and the age of the fuel is greater than a predetermined age threshold.
摘要翻译：用于车辆的控制系统包括时间确定模块，燃料时间确定模块和发动机控制模块。时间确定模块确定发动机关闭时间，其中发动机关闭时间指示发动机关闭的时间量。燃料年龄确定模块确定发动机的燃料系统中的燃料的年龄。当发动机关闭时间之一大于预定时间阈值并且燃料的年龄大于预定的年龄阈值时，发动机控制模块启动发动机。

10. 发明授权

US08027782B2 Pattern recognition for random misfire 有权
标题翻译：模式识别随机失火
公开(公告)号：US08027782B2
公开(公告)日：2011-09-27
申请号：US12560739
申请日：2009-09-16
申请人： Tameem K. Assaf , David S. Mathews , John V Bowman , Sanjeev M. Naik
发明人： Tameem K. Assaf , David S. Mathews , John V Bowman , Sanjeev M. Naik
IPC分类号： F02D41/10
CPC分类号： F02D41/1498 , F02D41/0097 , F02D2200/1012 , F02D2200/1015
摘要： A control system includes a jerk determination module and a misfire confirmation module. The jerk determination module determines a jerk of a crankshaft associated with a firing event in an engine. The misfire confirmation module selectively confirms that a misfire detected in the engine is valid based on the jerk.
摘要翻译：控制系统包括冲击确定模块和失火确认模块。冲击确定模块确定与发动机中的点火事件相关联的曲轴的冲击。失火确认模块选择性地确认在发动机中检测到的失火是基于冲击有效的。

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