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11.发明公开APPARATUS AND METHOD FOR VARIABLE WINDOWED PEAK DETECTION IN A MISFIRE DETECTION SYSTEM 失效装置和方法测定峰在一个变量MISFIRE_RATE系统
公开(公告)号：EP0721627A1
公开(公告)日：1996-07-17
申请号：EP95923686.0
申请日：1995-06-05
Applicant: MOTOROLA, INC.
CPC classification number: G01M15/11
Abstract: An apparatus, and a corresponding method, for determining misfire in a reciprocating engine (201) operates on a selectable quantity of discrete sampled acceleration signals (217) that are indicative of acceleration behavior of the reciprocating engine (201). A decimation device (219) selects a quantity (111) of the discrete sampled acceleration signals (217) dependent on an engine family, and optionally engine operating conditions such as speed and load. An acceleration signal (311) is selected from the sampled acceleration signals (217), preferably the sample having the most negative magnitude. A misfire determination device (205) provides a misfire indication (207) dependent on the selected acceleration signal (311).
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公开(公告)号：EP0883737B1
公开(公告)日：2002-07-10
申请号：EP97911781.9
申请日：1997-10-15
Applicant: MOTOROLA INC.
Inventor： NABER, Jeffrey, D. , REMBOSKI, Donald, J., Jr.
CPC classification number: F01N11/007 , F01N11/00 , F01N2550/02 , F01N2900/0421 , F01N2900/0422 , Y02T10/47
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公开(公告)号：EP0677165B1
公开(公告)日：2000-02-23
申请号：EP94925717.4
申请日：1994-08-01
Applicant: MOTOROLA, INC.
IPC: G01M15/00
CPC classification number: G01M15/11 , F02D41/1498 , F02D2041/1432 , F02D2200/1012 , F02D2200/1015
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公开(公告)号：EP0677165A1
公开(公告)日：1995-10-18
申请号：EP94925717.0
申请日：1994-08-01
Applicant: MOTOROLA, INC.
CPC classification number: G01M15/11 , F02D41/1498 , F02D2041/1432 , F02D2200/1012 , F02D2200/1015
Abstract: 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.
Abstract translation: 用于确定往复式发动机中的失火的方法和相应的系统测量发动机曲轴角速度并提供从发动机曲轴（403）测量的角速度信号。 通过滤波（405）提供取决于发动机曲轴角速度信号并独立于正常燃烧信息和其他高阶效应的经滤波的加速度信号。 当经滤波的加速度信号超过取决于以下至少一项的阈值：发动机速度，发动机负载或发动机温度（711）时，指示失火。 优选地，在失火判定之前，在发动机曲轴旋转的第一时段期间对经滤波的加速度信号（701）进行采样以在发动机曲轴旋转的第二时段上提供第一数据点（703）以提供第二数据点 707），并且经过发动机曲轴旋转的第三周期以提供第三数据点（705）。 然后，从第二数据点中减去第一和第三数据点的平均值，并提供组合的加速度信号（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，滤波后的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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Patent Agency Ranking15.发明授权
公开(公告)号：EP0720735B1
公开(公告)日：2002-12-04
申请号：EP95925497.0
申请日：1995-06-05
Applicant: MOTOROLA, INC.
Inventor： REMBOSKI, Donald, J., Jr. , PLEE, Steven, L. , LYNCH, Marvin, L. , McCLISH, Michael, A. , SONDAY, Susan, K.
IPC: G01M15/00
CPC classification number: G01M15/11
Abstract: 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.
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16.发明授权ADAPTIVE PROFILE CORRECTION FOR ROTATING POSITION ENCODERS IN RECIPROCATING ENGINES 失效自适应改善旋转位置传感器中ROUND UNDHERBEWEGENDEN机简介
公开(公告)号：EP0754326B1
公开(公告)日：2002-02-06
申请号：EP95940036.7
申请日：1995-11-21
Applicant: MOTOROLA, INC.
Inventor： MCCLISH, Michael, A. , PLEE, Steven, L. , REMBOSKI, Donald, J., Jr. , LYNCH, Marvin, L. , SONDAY, Susan, K.
CPC classification number: G01M15/11 , F02D41/0097 , G01P3/489 , G01P15/00
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17.发明公开DETRENDING ENGINE POSITIONAL DATA FOR ROTATING POSITION ENCODERS 失效MOTOR位置数据旋转POSITIONSKODIEREINRICHTUNGEN的趋势修正
公开(公告)号：EP0805963A1
公开(公告)日：1997-11-12
申请号：EP96933755.0
申请日：1996-09-04
Applicant: MOTOROLA, INC.
Inventor： McCLISH, Michael, A. , LYNCH, Marvin, L. , SELFE, Margaret, A. , STEINL, Gregory , REMBOSKI, Donald, J., Jr.
IPC: G01M15
CPC classification number: G01M15/06
Abstract: 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).
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18.发明公开ADAPTIVE PROFILE CORRECTION FOR ROTATING POSITION ENCODERS IN RECIPROCATING ENGINES 失效自适应改善旋转位置传感器中ROUND UNDHERBEWEGENDEN机简介
公开(公告)号：EP0754326A1
公开(公告)日：1997-01-22
申请号：EP95940036.0
申请日：1995-11-21
Applicant: MOTOROLA, INC.
Inventor： MCCLISH, Michael, A. , PLEE, Steven, L. , REMBOSKI, Donald, J., Jr. , LYNCH, Marvin, L. , SONDAY, Susan, K.
CPC classification number: G01M15/11 , F02D41/0097 , G01P3/489 , G01P15/00
Abstract: 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 (903). A microcontroller (1205) derives a processed acceleration signal (1207) dependent on the measured engine speed and provides it to an external acceleration based misfire detection system (1201) which provides a misfire indication (1203) back to the microcontroller (1205) if a combustion misfire behaviour is detected in the processed acceleration signal (1207).
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19.发明公开AN ACCELERATION BASED MISFIRE DETECTION SYSTEM AND METHOD WITH IMPROVED SIGNAL FIDELITY 失效基于加速系统如何检测失火和方法的研究改善的信号忠诚
公开(公告)号：EP0720735A1
公开(公告)日：1996-07-10
申请号：EP95925497.0
申请日：1995-06-05
Applicant: MOTOROLA, INC.
Inventor： REMBOSKI, Donald, J., Jr. , PLEE, Steven, L. , LYNCH, Marvin, L. , McCLISH, Michael, A. , SONDAY, Susan, K.
CPC classification number: G01M15/11
Abstract: 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.
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