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1. 发明申请

US20130312504A1 SYSTEM AND METHOD FOR DETECTING MISFIRE BASED ON A FIRING PATTERN OF AN ENGINE AND ENGINE TORQUE 有权
标题翻译：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。

2. 发明申请

US20130054109A1 STOCHASTIC PRE-IGNITION DETECTION SYSTEMS AND METHODS 有权
标题翻译： STOCHASTIC PRE-IGNITION检测系统和方法
公开(公告)号：US20130054109A1
公开(公告)日：2013-02-28
申请号：US13222503
申请日：2011-08-31
申请人： Kenneth J. Buslepp , Daniel G. Brennan , Julian R. Verdejo , David S. Mathews
发明人： Kenneth J. Buslepp , Daniel G. Brennan , Julian R. Verdejo , David S. Mathews
IPC分类号： F02D28/00
CPC分类号： F02D41/1497 , F02D41/009 , F02D2041/1417
摘要： A system for a vehicle includes a time stamping module, a period determination module, a stochastic pre-ignition (SPI) indication module, and an SPI remediation module. The time stamping module generates first and second timestamps when a crankshaft of an engine is in first and second crankshaft positions during an engine cycle, respectively. The period determination module determines a period between the first and second timestamps. The SPI indication module selectively indicates that an SPI event occurred within a cylinder of the engine based on the period. The SPI remediation module selectively adjusts at least one engine operating parameter in response to the SPI indication module indicating that the SPI event occurred within the cylinder.
摘要翻译：一种车辆系统包括时间戳模块，周期确定模块，随机预点火（SPI）指示模块和SPI修复模块。发动机的曲轴分别在发动机循环期间处于第一和第二曲轴位置时，时间戳模块产生第一和第二时间戳。周期确定模块确定第一和第二时间戳之间的周期。 SPI指示模块基于该周期选择性地指示发生在发动机的气缸内的SPI事件。 SPI修复模块响应于SPI指示模块选择性地调整至少一个引擎操作参数，指示SPI事件发生在气缸内。

3. 发明授权

US08042385B2 Synchronization diagnostic systems and methods for engine controllers 有权
标题翻译：发动机控制器的同步诊断系统和方法
公开(公告)号：US08042385B2
公开(公告)日：2011-10-25
申请号：US12556163
申请日：2009-09-09
申请人： Daniel G. Brennan , Jason T. Davis , David S. Mathews , Kevin J. Storch
发明人： Daniel G. Brennan , Jason T. Davis , David S. Mathews , Kevin J. Storch
IPC分类号： G01M15/04
CPC分类号： G01M15/08
摘要： An engine controller diagnostic system includes a cylinder identification (ID) comparison module and a synchronization diagnostic module. The cylinder ID comparison module compares a first cylinder ID associated with a first controller with a second cylinder ID associated with a second controller. The synchronization diagnostic module determines a synchronization status of the first controller based on a comparison between the first cylinder ID and the second cylinder ID.
摘要翻译：发动机控制器诊断系统包括气缸识别（ID）比较模块和同步诊断模块。气缸ID比较模块将与第一控制器相关联的第一气缸ID与与第二控制器相关联的第二气缸ID进行比较。同步诊断模块基于第一气缸ID和第二气缸ID之间的比较来确定第一控制器的同步状态。

4. 发明申请

US20100191445A1 INDIVIDUAL CYLINDER FUEL MASS CORRECTION FACTOR FOR HIGH DRIVABILITY INDEX (HIDI) FUEL 有权
标题翻译：用于高可用性指数（HIDI）燃料的个体气瓶燃料质量校正因子
公开(公告)号：US20100191445A1
公开(公告)日：2010-07-29
申请号：US12361086
申请日：2009-01-28
申请人： Jon C. Miller , David S. Mathews , Mark D. Carr , Ian J. Mac Ewen
发明人： Jon C. Miller , David S. Mathews , Mark D. Carr , Ian J. Mac Ewen
IPC分类号： F02D41/00
CPC分类号： F02D41/0025 , F02D19/061 , F02D19/0623 , F02D19/088 , F02D41/008 , F02D2200/0612 , F02D2200/1015 , F02M37/0064 , F02M2200/95 , Y02T10/36
摘要： A system includes a fuel detection module, a misfire detection module, and a fuel control module. The fuel detection module detects when a fuel supplied to an engine having C cylinders has a high drivability index (HIDI), where C is an integer greater than 1. The misfire detection module detects whether M of the C cylinders misfire when the fuel has the HIDI, where M is an integer, and 1≦M
摘要翻译：一种系统包括燃料检测模块，失火检测模块和燃料控制模块。燃料检测模块检测供给具有C缸的发动机的燃料何时具有高的驾驶性能指数（HIDI），其中C是大于1的整数。当燃料具有燃料时，失火检测模块检测C缸的M是否失火 HIDI，其中M是整数，1＆nlE; M

5. 发明申请

US20100088010A1 METHOD AND CONTROL SYSTEM FOR CONTROLLING AN ENGINE FUNCTION BASED ON CRAKSHAFT ACCELERATION 有权
标题翻译：基于加速度控制发动机功能的方法和控制系统
公开(公告)号：US20100088010A1
公开(公告)日：2010-04-08
申请号：US12478159
申请日：2009-06-04
申请人： Julian R. Verdejo , Michael R. Grimes , Nicholas John Kalweit , David S. Mathews
发明人： Julian R. Verdejo , Michael R. Grimes , Nicholas John Kalweit , David S. Mathews
IPC分类号： F02D41/34 , G01M15/06
CPC分类号： B60W20/15 , B60K6/485 , B60L2240/486 , B60W10/02 , B60W10/06 , B60W10/08 , B60W10/10 , B60W20/00 , B60W2510/0283 , B60W2510/06 , B60W2510/0685 , B60W2710/02 , B60W2710/105 , F02D41/009 , F02D2041/1417 , Y02T10/6226 , Y02T10/6286
摘要： A method and control system for controlling an engine includes an instantaneous crankshaft acceleration determining module determining an instantaneous crankshaft acceleration. An engine parameter adjustment module adjusts an engine parameter in response to the instantaneous crankshaft acceleration.
摘要翻译：用于控制发动机的方法和控制系统包括确定瞬时曲轴加速度的瞬时曲轴加速度确定模块。发动机参数调节模块根据瞬时曲轴加速度来调整发动机参数。

6. 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。

7. 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。

8. 发明授权

US06801848B1 Methods and apparatus for sensing misfire in an internal combustion engine 有权
标题翻译：用于感测内燃机失火的方法和装置
公开(公告)号：US06801848B1
公开(公告)日：2004-10-05
申请号：US10602376
申请日：2003-06-25
申请人： David S. Mathews
发明人： David S. Mathews
IPC分类号： G01M1500
CPC分类号： G01M15/11
摘要： Methods and apparatus are provided for sensing a misfire in an engine having at least one cylinder and for providing a misfire indication signal in response to the occurrence of the misfire. The apparatus comprises an electronic controller that calculates an expected time period for a cylinder event during which fuel is combusted in a cylinder to provide an expected time period value. The time period of the cylinder event is measured to provide a measured time period value. The difference between the expected time period value and the measured time period value is calculated to provide a difference time period value. The difference time period value is compared to a predetermined threshold time. The misfire indication signal is provided in response to the difference time period value exceeding the predetermined threshold time.
摘要翻译：提供了用于感测具有至少一个气缸的发动机中的失火并且用于响应于失火的发生而提供失火指示信号的方法和装置。该装置包括一个电子控制器，该电子控制器计算一个气缸事件的期望时间周期，在此期间燃料在气缸中燃烧以提供期望的时间周期值。测量气缸事件的时间段以提供测量的时间段值。计算期望时间值与测量的时间周期值之间的差以提供差分时间段值。将差时间值与预定的阈值时间进行比较。响应于差异时间值超过预定阈值时间而提供失火指示信号。

9. 发明授权

US5573474A Method for controlling ignition timing for an internal combustion engine 失效
标题翻译：用于控制内燃机的点火正时的方法
公开(公告)号：US5573474A
公开(公告)日：1996-11-12
申请号：US267320
申请日：1994-06-28
申请人： Richard A. Marsh , David P. Garrett , Paul A. Bauerle , David S. Mathews , Michael J. Vanek , Anthony E. Cubr
发明人： Richard A. Marsh , David P. Garrett , Paul A. Bauerle , David S. Mathews , Michael J. Vanek , Anthony E. Cubr
IPC分类号： F02D41/02 , F02D41/10 , F02P5/15 , B60K41/06 , B60K41/28
CPC分类号： F02P5/1504 , F02D41/0225 , F02D41/10 , F02D2400/12 , F02D41/022 , Y02T10/46 , Y10T477/6437 , Y10T477/68
摘要： An ignition timing control method for a vehicle which provides an engine torque output waveform for canceling vibrational disturbances caused by sudden throttle plate movement resulting in engine accelerations and decelerations. The ignition timing is variably advanced and retarded in accordance with a phase-shifted derivative of engine speed to produce an appropriate engine torque output waveform for optimally canceling the vehicle vibrational disturbances. The phase shift is accomplished by applying a time delay to the engine speed derivative. A negative bias is added to the ignition timing for retarding ignition timing by a predetermined amount to permit a full sinusoidal canceling waveform. A blend multiplier is utilized to gradually remove the effects of the canceling waveform and bias, thereby gradually returning the ignition timing to its original setting.
摘要翻译：一种用于车辆的点火正时控制方法，其提供用于消除由引起的发动机加速和减速的突然节流板运动引起的振动干扰的发动机扭矩输出波形。点火正时根据发动机转速的相移导数可变地提前和延迟，以产生用于最佳地抵消车辆振动干扰的适当的发动机转矩输出波形。相移通过对发动机转速导数施加时间延迟来实现。在点火正时添加负偏压以使点火正时延迟预定量以允许完全正弦消除波形。使用混合乘法器逐渐消除抵消波形和偏置的影响，从而逐渐将点火正时恢复到其原始设置。

10. 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。

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