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公开(公告)号：WO1995007450A1
公开(公告)日：1995-03-16
申请号：PCT/US1994008704
申请日：1994-08-01
Applicant: MOTOROLA INC.
Inventor： MOTOROLA INC. , REMBOSKI, Donald, J., Jr. , PLEE, Steven, L. , LYNCH, Marvin, L. , McCLISH, Michael, A.
IPC: G01M15/00
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。 当过滤的加速度信号超过阈值时，取决于以下至少一项：发动机转速，发动机负荷或发动机温度（711），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：EP0763194A1
公开(公告)日：1997-03-19
申请号：EP96909484.0
申请日：1996-02-08
Applicant: MOTOROLA, INC.
Inventor： REMBOSKI, Donald, J. , PLEE, Steven, L. , LYNCH, Marvin, L. , MCCLISH, Michael, A. , SONDAY, Susan, K.
CPC classification number: G01M15/11
Abstract: 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 torque. A misfire is indicated (513) when a magnitude of the second acceleration data sample has a magnitude less than a misfire threshold (517), and less than a magnitude of both the first and third acceleration data samples (511).
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3.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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4.发明申请
公开(公告)号：WO1997006421A1
公开(公告)日：1997-02-20
申请号：PCT/US1996010131
申请日：1996-06-12
Applicant: MOTOROLA INC.
Inventor： MOTOROLA INC. , REMBOSKI, Donald, J. , PLEE, Steven, L. , WOZNICK, Mark, R. , FOLEY, John, Francis
IPC: G01N03/32
CPC classification number: F02M25/0809
Abstract: An apparatus and method of detecting a leak in an evaporative emissions system measures vapor flow out of the evaporative emissions system while maintaining a zero pressure difference from inside a fuel tank to atmosphere and provides a reference vapor flow variable dependent on the measurement (317). A pressurized vapor and leak flow variable is measured (323) dependent on measured vapor flow out of the evaporative emissions system while maintaining a pressure difference of 10'' of water from inside the fuel tank to atmosphere. A leak is indicated (327) if a difference between the reference vapor flow variable and the pressurized vapor and leak flow variable is greater than a predetermined leak flow factor.
Abstract translation: 检测蒸发排放系统中的泄漏的装置和方法测量蒸发排出系统中的蒸汽流，同时保持从燃料箱内部到大气的零压差，并根据测量值提供参考蒸气流量变化（317）。 测量加压蒸汽和泄漏流量变量（323），取决于蒸发排放系统中测量的蒸汽流量，同时保持水从燃料箱内部到大气的压力差为10“。 如果参考蒸汽流量变量和加压蒸汽和泄漏流量变量之间的差异大于预定的泄漏流量因子，则指示泄漏（327）。
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公开(公告)号：WO1996030737A1
公开(公告)日：1996-10-03
申请号：PCT/US1996001799
申请日：1996-02-08
Applicant: MOTOROLA INC.
Inventor： MOTOROLA INC. , REMBOSKI, Donald, J. , PLEE, Steven, L. , LYNCH, Marvin, L. , MCCLISH, Michael, A. , SONDAY, Susan, K.
IPC: G01M15/00
CPC classification number: G01M15/11
Abstract: 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 torque. A misfire is indicated (513) when a magnitude of the second acceleration data sample has a magnitude less than a misfire threshold (517), and less than a magnitude of both the first and third acceleration data samples (511).
Abstract translation: 失火检测方法和装置包括测量内燃机中的燃烧诱发扭矩，并提供取决于转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（517）的幅度并且小于第一和第三加速度数据样本（511）的幅度时，指示失火（513）。
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Patent Agency Ranking6.发明申请ADAPTIVE PROFILE CORRECTION FOR ROTATING POSITION ENCODERS IN RECIPROCATING ENGINES 审中-公开旋转位置编码器在自适应引擎中的自适应轮廓校正
公开(公告)号：WO1996024106A1
公开(公告)日：1996-08-08
申请号：PCT/US1995015011
申请日：1995-11-21
Applicant: MOTOROLA INC.
Inventor： MOTOROLA INC. , MCCLISH, Michael, A. , PLEE, Steven, L. , REMBOSKI, Donald, J., Jr. , LYNCH, Marvin, L. , SONDAY, Susan, K.
IPC: G06F19/00
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).
Abstract translation: 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（903）内操作有界。 微控制器（1205）根据所测量的发动机速度导出经处理的加速度信号（1207），并将其提供给外部加速度失火检测系统（1201），该失火检测系统（1201）将失火指示（1203）提供给微控制器（1205），如果 在处理的加速度信号（1207）中检测到燃烧失火行为。
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公开(公告)号：WO1998000704A1
公开(公告)日：1998-01-08
申请号：PCT/US1997007553
申请日：1997-05-05
Applicant: MOTOROLA INC.
Inventor： MOTOROLA INC. , OH, Seajin , JOSEPH, Jose , DUONG, Dao , ADAMS, Neils, J. , PLEE, Steven, L.
IPC: G01N25/00
CPC classification number: G01N27/16
Abstract: A modified noble metal catalyst based calorimetric sensor for sensing non-methane hydrocarbons in an automotive exhaust gas stream includes a first sensing element (105) with an output that provides a signal (111) indicative of a concentration of non-methane hydrocarbons, hydrogen (H2), and carbon monoxide (CO). A compensating sensing element (107) has an output that provides a compensating signal (113) indicative of a concentration of hydrogen (H2) and carbon monoxide (CO). A circuit for combining the signal and the compensating signal provides a combined signal indicative of a measure of non-methane hydrocarbons in the automotive exhaust gas stream.
Abstract translation: 用于检测汽车废气流中的非甲烷烃的改性的贵金属催化剂基量热传感器包括具有输出的第一感测元件（105），所述输出提供指示非甲烷烃浓度的信号（111），氢（ H2）和一氧化碳（CO）。 补偿感测元件（107）具有提供指示氢（H2）和一氧化碳（CO）的浓度的补偿信号（113）的输出。 用于组合信号和补偿信号的电路提供指示汽车废气流中非甲烷烃的量度的组合信号。
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8.发明申请APPARATUS AND METHOD FOR VARIABLE WINDOWED PEAK DETECTION IN A MISFIRE DETECTION SYSTEM 审中-公开错误检测系统中可变窗口检测的装置和方法
公开(公告)号：WO1996003706A1
公开(公告)日：1996-02-08
申请号：PCT/US1995006988
申请日：1995-06-05
Applicant: MOTOROLA INC.
Inventor： MOTOROLA INC. , REMBOSKI, Donald, J., Jr. , PLEE, Steven, L. , LYNCH, Marvin, L. , McCLISH, Michael, A.
IPC: G06F19/00
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).
Abstract translation: 一种用于确定往复式发动机（201）中的失火的装置和相应的方法，用于指示往复式发动机（201）的加速行为的可选量的离散采样加速度信号（217）。 抽取装置（219）根据发动机系列选择离散采样加速度信号（217）的数量（111），以及可选的发动机运转条件（如速度和负载）。 从采样的加速度信号（217）中选择加速度信号（311），优选地，具有最负的幅度的样本。 失火确定装置（205）提供取决于所选择的加速度信号（311）的失火指示（207）。
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9.发明申请AN ACCELERATION BASED MISFIRE DETECTION SYSTEM AND METHOD WITH IMPROVED SIGNAL FIDELITY 审中-公开基于加速度的MISFIRE检测系统和具有改进的信号强度的方法
公开(公告)号：WO1996003630A1
公开(公告)日：1996-02-08
申请号：PCT/US1995008431
申请日：1995-06-05
Applicant: MOTOROLA INC.
Inventor： MOTOROLA INC. , 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.
Abstract translation: 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，取决于确定的动力系的运行状态，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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10.发明授权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：EP0721627B1
公开(公告)日：2004-05-06
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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