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公开(公告)号：US5841025A
公开(公告)日：1998-11-24
申请号：US415115
申请日：1995-03-31
CPC分类号： G01M15/11
摘要： A misfire detection method and apparatus includes measurement of combustion induced torque in an internal combustion engine and provision of time-ordered first, second, and third acceleration data samples dependent on the torque. A misfire is indicated when a magnitude of the second acceleration data sample has a magnitude less than a misfire threshold, and less than a magnitude of both the first and third acceleration data samples.
摘要翻译： 失火检测方法和装置包括测量内燃机中的燃烧诱发扭矩并提供取决于扭矩的时间有序的第一，第二和第三加速度数据样本。 当第二加速度数据样本的大小具有小于失火阈值的幅度并且小于第一和第三加速度数据样本的幅度时，指示失火。
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2.发明授权Adaptive profile correction for rotating position encoders in reciprocating engines 失效旋转位置编码器在往复式发动机中的自适应轮廓校正
公开(公告)号：US5559705A
公开(公告)日：1996-09-24
申请号：US383119
申请日：1995-02-03
申请人： Michael A. McClish , Steven L. Plee , Donald J. Remboski, Jr. , Marvin L. Lynch , Susan K. Sonday
发明人： Michael A. McClish , Steven L. Plee , Donald J. Remboski, Jr. , Marvin L. Lynch , Susan K. Sonday
CPC分类号： G01M15/11 , G01P15/00 , G01P3/489 , F02D41/0097
摘要： A method and apparatus for adaptive profile correction for rotating position encoders in reciprocating engines measures a raw engine speed derived from a rotating position encoder (107) driven by a reciprocating engine. A first corrected engine speed (1103) is provided dependent on the raw engine speed and a predetermined first encoder profile while the engine is operating bounded within a first speed range (905), and a second corrected engine speed (1103) is provided dependent on the raw engine speed and a predetermined second encoder profile while the engine is operating bounded within a second speed range (913).
摘要翻译： 用于在往复式发动机中旋转位置编码器的自适应轮廓校正的方法和装置测量从由往复式发动机驱动的旋转位置编码器（107）得到的原始发动机速度。 当发动机在第一速度范围（905）内操作有界时，第一校正发动机转速（1103）取决于原始发动机速度和预定的第一编码器轮廓，并且第二校正发动机转速（1103）依赖于 原始发动机速度和预定的第二编码器轮廓，同时发动机在第二速度范围内操作界限（913）。
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3.发明授权Acceleration based misfire detection system and method with improved signal fidelity 失效基于加速度的失火检测系统和具有改进的信号保真度的方法
公开(公告)号：US5515720A
公开(公告)日：1996-05-14
申请号：US279966
申请日：1994-07-25
申请人： Donald J. Remboski, Jr. , Steven L. Plee , Marvin L. Lynch , Michael A. McClish , Susan K. Sonday
发明人： Donald J. Remboski, Jr. , Steven L. Plee , Marvin L. Lynch , Michael A. McClish , Susan K. Sonday
CPC分类号： G01M15/11
摘要： An acceleration based misfire detection system with improved signal fidelity comprises a measurement device (421, 423, 425, 427) for determining an operating condition of the powertrain (401). The operating condition can include engine speed, engine load, as well as other conditions. A misfire detector (417) provides a misfire indication (419) dependent on an improved fidelity acceleration signal (415). The improved fidelity acceleration signal (415) is provided by either a median filter (413) operating on an acceleration signal (411) where the median filter's rank is programmable dependent on the determined operating condition of the powertrain, a highpass filter operating on an acceleration signal (411) where the highpass filter's order is programmable dependent on the determined operating condition of the powertrain, or from an acceleration determination device (409) acting on velocity information provided by a lowpass filter (407) operating on a velocity signal (406) where the lowpass filter's order is programmable dependent on the determined operating condition of the powertrain, or a combination of the above.
摘要翻译： 具有改善的信号保真度的基于加速度的失火检测系统包括用于确定动力系（401）的操作状态的测量装置（421,423,425,427）。 运行条件可以包括发动机转速，发动机负荷以及其他条件。 失火探测器（417）根据改进的保真加速度信号（415）提供失火指示（419）。 改进的保真加速度信号（415）由操作在加速度信号（411）上的中值滤波器（413）提供，其中中值滤波器的秩可编程，取决于所确定的动力系的运行条件，运行在加速度上的高通滤波器 信号（411），其中高通滤波器的顺序可根据所确定的动力系的操作条件或来自加速度确定装置（409）而起作用的作用在由速度信号（406）上操作的低通滤波器（407）提供的速度信息上， 其中低通滤波器的顺序可根据动力总成的确定的操作条件或上述的组合来编程。
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4.发明授权
公开(公告)号：US5806014A
公开(公告)日：1998-09-08
申请号：US967116
申请日：1997-11-12
CPC分类号： F02D41/0097 , F02D41/1498 , F02D2200/1015
摘要： A method and system of combustion control for an internal combustion engine (313) proximate an extinction limit includes measurement of acceleration behavior of the internal combustion engine and providing a measure of combustion variability dependent thereon. Preferably, the combustion variability measure is derived by one or more stochastically based methods (607). Operation of the internal combustion engine (313) is controlled dependent on the combustion variability measurement. Fuel, ignition, and exhaust gas recirculation may all be controlled by the derived combustion variability measurement to significantly reduce hydrocarbon (HC) and NO.sub.x emissions.
摘要翻译： 用于接近消光极限的内燃机（313）的燃烧控制的方法和系统包括测量内燃机的加速行为并提供依赖于其的燃烧变化性的量度。 优选地，燃烧变率测量通过一种或多种基于随机的方法得出（607）。 内燃机（313）的操作取决于燃烧变率测量。 燃料，点燃和废气再循环可以全部由所得的燃烧变异性测量来控制，以显着减少碳氢化合物（HC）和NOx排放。
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5.发明授权Apparatus and method for variable windowed peak detection in a misfire detection system 失效在失火检测系统中可变窗口峰值检测的装置和方法
公开(公告)号：US5508927A
公开(公告)日：1996-04-16
申请号：US280101
申请日：1994-07-25
CPC分类号： G01M15/11
摘要： An apparatus, and a corresponding method, for determining misfire in a reciprocating engine operates on a selectable quantity of discrete sampled acceleration signals that are indicative of acceleration behavior of the reciprocating engine. A decimation device selects a quantity of the discrete sampled acceleration signals dependent on an engine family, and optionally engine operating conditions such as speed and load. An accelearation signal is selected from the sampled acceleration signals, preferably the sample having the most negative magnitude. A misfire determination device provides a misfire indication dependent on the selected acceleration signal.
摘要翻译： 用于确定往复式发动机中的失火的装置和相应的方法对可选择量的表示往复式发动机的加速行为的离散采样加速度信号进行操作。 抽取装置选择取决于发动机系列的离散采样加速度信号的数量，以及可选的发动机操作条件，例如速度和负载。 从采样的加速度信号中选择加权信号，优选地，具有最负的幅度的样本。 失火判定装置根据所选择的加速度信号提供失火指示。
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6.发明授权Pattern recognition method and system for determining a misfire condition in a reciprocating engine 失效用于确定往复式发动机失火状态的模式识别方法和系统
公开(公告)号：US5804711A
公开(公告)日：1998-09-08
申请号：US689038
申请日：1996-08-06
CPC分类号： G01M15/11 , F02D2041/1432 , F02D2200/1012 , F02D2200/1015 , F02D41/1498
摘要： A method, and a corresponding system, for determining misfire in a reciprocating engine measures engine crankshaft angular velocity and provides an angular velocity signal as measured from the engine crankshaft (403). A filtered acceleration signal, dependent on the engine crankshaft angular velocity signal and independent of normal combustion information and other high-order effects is provided via filtering (405). When the filtered acceleration signal exceeds a threshold dependent on at least one of the following; engine speed, engine load, or engine temperature (711), a misfire is indicated. Preferably, prior to the misfire determination, the filtered acceleration signal (701) is sampled over a first period of engine crankshaft rotation to provide a first data point (703), over a second period of engine crankshaft rotation to provide a second data point (707), and over a third period of engine crankshaft rotation to provide a third data point (705). Then, an average of the first and third data points is subtracted from the second data point and a combined acceleration signal is provided (511). Then, a misfire is indicated (517) when the combined acceleration signal exceeds the threshold (513). Preferably, this sampling of the filtered acceleration signal is continuous, and the sampling of the first, second and third data points is separated by two engine crankshaft rotations.
摘要翻译： 用于确定往复式发动机中的失火的方法和对应系统测量发动机曲轴角速度并提供从发动机曲轴（403）测得的角速度信号。 通过滤波（405）提供了依赖于发动机曲轴角速度信号和独立于正常燃烧信息和其他高阶效应的滤波加速度信号。 当滤波的加速度信号超过取决于以下至少之一的阈值时： 发动机转速，发动机负荷或发动机温度（711），则表示失火。 优选地，在失火确定之前，在发动机曲轴旋转的第一周期上对滤波的加速度信号（701）进行采样，以在发动机曲轴旋转的第二周期上提供第一数据点（703），以提供第二数据点 707），并且在发动机曲轴旋转的三分之一以上以提供第三数据点（705）。 然后，从第二数据点减去第一和第三数据点的平均值，并提供组合加速度信号（511）。 然后，当组合的加速度信号超过阈值（513）时，指示失火（517）。 优选地，滤波加速度信号的该采样是连续的，并且第一，第二和第三数据点的采样由两个发动机曲轴旋转分开。
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公开(公告)号：US5503007A
公开(公告)日：1996-04-02
申请号：US955780
申请日：1992-10-05
CPC分类号： G01M15/11 , F02D2041/1432 , F02D2200/1012 , F02D2200/1015
摘要： A method for detecting a misfire condition by interpreting acceleration of an engine crankshaft (301) is described. The method teaches measurement of a first engine crankshaft acceleration, (405) proximate a first predetermined engine crankshaft angle, and provides a first reading (407) indicative of the first engine crankshaft acceleration, measurement of a second engine crankshaft acceleration, (417) proximate a second predetermined engine crankshaft angle, and provides a second reading (419) indicative of the second engine crankshaft acceleration, then combines (421) the first reading and the second reading and provides an acceleration coefficient (423) indicative of the combined readings. Then, a misfire is indicated (427) when the acceleration coefficient does not exceed a predetermined limit.
摘要翻译： 描述了通过解释发动机曲轴（301）的加速度来检测失火状态的方法。 该方法教导了接近第一预定发动机曲轴角度的第一发动机曲轴加速度（405）的测量值，并提供指示第一发动机曲轴加速度的第一读数（407），第二发动机曲轴加速度的测量值（417） 第二预定的发动机曲轴角度，并且提供指示第二发动机曲轴加速度的第二读数（419），然后组合（421）第一读数和第二读数，并提供指示组合读数的加速系数（423）。 然后，当加速系数不超过预定极限时，指示失火（427）。
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公开(公告)号：US5616834A
公开(公告)日：1997-04-01
申请号：US591838
申请日：1996-01-25
申请人： Marvin L. Lynch , Michael A. McClish , Margaret A. Selfe , Gregory Steinl , Donald J. Remboski, Jr.
发明人： Marvin L. Lynch , Michael A. McClish , Margaret A. Selfe , Gregory Steinl , Donald J. Remboski, Jr.
CPC分类号： G01M15/09
摘要： A misfire detection system and method measures fluctuations of air charge ingested into an engine 303, preferably as fluctuations of the engine's intake air pressure or as fluctuations of the mass air flow. A misfire indication 337 is provided dependent on a behavior of the fluctuations of air charge. Preferably, to eliminate errors associated with engine transient operating conditions, such as acceleration, the fluctuations of air charge are differentiated 325 before a misfire detection mechanism 333 is used to determine misfire behavior.
摘要翻译： 失火检测系统和方法测量摄入发动机303的空气的波动，优选地是发动机进气压力的波动或大气流的波动。 取决于空气充气的波动的行为来提供失火指示337。 优选地，为了消除与发动机瞬态操作条件（例如加速度）相关联的错误，在使用失火检测机构333以确定失火行为之前，充气的波动被区分325。
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公开(公告)号：US5703283A
公开(公告)日：1997-12-30
申请号：US562532
申请日：1995-11-24
申请人： Michael A. McClish , Marvin L. Lynch , Margaret A. Selfe , Gregory Steinl , Donald J. Remboski, Jr.
发明人： Michael A. McClish , Marvin L. Lynch , Margaret A. Selfe , Gregory Steinl , Donald J. Remboski, Jr.
CPC分类号： G01M15/06
摘要： A method for detrending engine positional data includes acquiring positional encoder data over a plurality of consecutive engine revolutions as the engine is decelerating. Then, a trend (207) in the acquired positional encoder data consistent with behavior occurring at less than a frequency of one cycle per engine revolution is identified. Next, corrected positional encoder data (208) is generated dependent on removing the identified trend (207).
摘要翻译： 一种用于消除发动机位置数据的方法包括当发动机正在减速时在多个连续的发动机转速下获取位置编码器数据。 然后，识别与获取的位置编码器数据一致的趋势（207），该行为与每发动机转数小于一个周期的频率发生。 接下来，根据去除所识别的趋势来生成校正位置编码器数据（208）（207）。
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公开(公告)号：US5862506A
公开(公告)日：1999-01-19
申请号：US690464
申请日：1996-07-29
IPC分类号： F02P17/12 , F02D41/14 , F02D45/00 , G01M15/11 , G01P3/46 , G01P15/08 , G01M15/00 , G06F19/00
CPC分类号： G01M15/11 , F02D41/1498 , G01P15/0891 , G01P3/46 , F02D2041/1432 , F02D2200/1015
摘要： A modified trimmed mean filtering method and apparatus for a misfire detection includes acquiring a time-continuous series of acceleration data samples (601) representative of acceleration behavior of a reciprocating engine. And, providing a filtered acceleration data sample (607) dependent on an average acceleration magnitude of a portion of the acceleration data samples bounded within a range of amplitudes and, preferably, a time-centered acceleration data sample (606) of the fixed length time-continuous series of acceleration data samples. A misfire condition can be indicated (409) dependent on a magnitude of the filtered acceleration data sample.
摘要翻译： 经修正的修正平均过滤方法和用于失火检测的装置包括获取表示往复式发动机的加速行为的时间连续的一系列加速度数据样本（601）。 并且，提供取决于在幅度范围内界限的加速度数据样本的一部分的平均加速度幅度的滤波加速度数据样本（607），并且优选地，固定长度时间的时间中心加速度数据样本（606） 连续的加速度数据采样系列。 可以指示（409）取决于滤波的加速度数据样本的大小的失火条件。
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