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1.发明授权Method for monitoring the performance of a catalytic converter using a rate modifier 有权使用速率调节剂监测催化转化器的性能的方法
公开(公告)号：US6116021A
公开(公告)日：2000-09-12
申请号：US158460
申请日：1998-09-22
申请人： Darren Schumacher , Michael A. Badalament , Jeffrey D. Naber , Alan Chewter , Kevin J. Bush , Bruce Church , David Frankowski , David Price
发明人： Darren Schumacher , Michael A. Badalament , Jeffrey D. Naber , Alan Chewter , Kevin J. Bush , Bruce Church , David Frankowski , David Price
CPC分类号： F01N11/00 , F01N11/007 , F01N2550/02 , F01N2900/0422 , Y02T10/47
摘要： A method for monitoring the performance of a catalytic converter (34) computes the oxygen storage capacity and desorption capacity of a catalyst within the catalytic converter (34). An engine control unit (10) receives mass flow rate information of air from a mass air flow rate sensor (12) and an injector driver (24), and receives electrical signals from an upstream exhaust gas sensor (28) and a downstream exhaust gas sensor (30). A rate modifier is determined from excess air ratios and an adaptation parameter. The engine control unit (10) calculates normalized air fuel ratios for the exhaust gas entering and leaving the catalytic converter (34) and performs numerical integration using the rate modifier to determine the oxygen storage capacity of the catalyst in the catalytic converter (34). The calculated oxygen storage capacity of the catalyst can be compared with threshold values to determine the performance of the catalytic converter (34).
摘要翻译： 用于监测催化转化器（34）的性能的方法计算催化转化器（34）内的催化剂的储氧能力和解吸能力。 发动机控制单元（10）从质量空气流量传感器（12）和喷射器驱动器（24）接收空气的质量流量信息，并且从上游废气传感器（28）和下游排气 传感器（30）。 速率调节剂由过量空气比和适应参数确定。 发动机控制单元（10）计算进入和离开催化转化器（34）的废气的归一化空燃比，并使用速率调节器进行数值积分，以确定催化转化器（34）中催化剂的储氧能力。 将催化剂的计算氧气存储容量与阈值进行比较，以确定催化转化器（34）的性能。
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2.发明授权Method for controlling the level of oxygen stored by a catalyst within a catalytic converter 失效控制催化转化器内催化剂储存的氧含量的方法
公开(公告)号：US5842340A
公开(公告)日：1998-12-01
申请号：US806179
申请日：1997-02-26
CPC分类号： F02D41/0295 , F01N11/007 , F02D41/1441 , F02D41/1475 , F01N2550/02 , F01N2900/0422 , F02D2200/0814 , Y02T10/47
摘要： The catalyst control method of the invention continuously estimates a level of oxygen stored by a catalyst within a catalytic converter. The estimated oxygen stored by the catalyst is compared to a predetermined threshold and positive or negative deviations in the oxygen amount from the threshold is determined. When a positive deviation from the threshold amount is detected, the air/fuel ratio flowing into an engine (16) is decreased. Correspondingly, when a negative deviation is detected, the air/fuel ratio flowing into the engine (16) is increased. The amount of oxygen stored by the catalyst is determined by analyzing signals from a first gas sensor (28) positioned upstream from a catalytic converter (34) and a second gas sensor (30) positioned downstream from the catalytic converter (34). An engine control unit (10) integrates an expression for the mass flow rate of excess oxygen into the catalytic converter (34). Engine control unit (10) applies a change in air/fuel ratio to maintain the oxygen level on the catalyst within the catalytic converter (34) at a desired level.
摘要翻译： 本发明的催化剂控制方法连续地估计催化转化器内催化剂储存的氧含量。 将由催化剂储存的估计氧气与预定阈值进行比较，并确定氧气量与阈值的正或负偏差。 当检测到与阈值量的正偏差时，流入发动机（16）的空气/燃料比减少。 相应地，当检测到负偏差时，流入发动机（16）的空气/燃料比增加。 通过分析来自位于催化转化器（34）上游的第一气体传感器（28）和位于催化转化器（34）下游的第二气体传感器（30）的信号来确定催化剂存储的氧气的量。 发动机控制单元（10）将过量氧气质量流量的表达式集成到催化转化器（34）中。 发动机控制单元（10）施加空燃比的变化，以将催化转化器（34）内的催化剂上的氧气水平维持在期望的水平。
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公开(公告)号：US5842339A
公开(公告)日：1998-12-01
申请号：US806178
申请日：1997-02-26
申请人： Kevin J. Bush , Bruce A. Church , David Frankowski
发明人： Kevin J. Bush , Bruce A. Church , David Frankowski
CPC分类号： F01N11/00 , F01N11/007 , F01N2550/02 , F01N2900/0422 , Y02T10/47
摘要： A method for monitoring the performance of a catalytic converter (34) computes the oxygen storage capacity and desorption capacity of a catalyst within the catalytic converter (34). An engine control unit (10) receives mass flow rate information of air from a mass air flow rate sensor (12) and an injector driver (24), and receives electrical signals from an upstream exhaust gas sensor (28) and a downstream exhaust gas sensor (30). The engine control unit (10) calculates normalized air fuel ratios for the exhaust gas entering and leaving the catalytic converter (34) and performs numerical integration to determine the oxygen storage capacity and oxygen desorption capacity of the catalyst in the catalytic converter (34). The calculated oxygen storage and desorption capacities of the catalyst are compared with threshold values to determine the performance of the catalytic converter (34).
摘要翻译： 用于监测催化转化器（34）的性能的方法计算催化转化器（34）内的催化剂的储氧能力和解吸能力。 发动机控制单元（10）从质量空气流量传感器（12）和喷射器驱动器（24）接收空气的质量流量信息，并且从上游废气传感器（28）和下游排气 传感器（30）。 发动机控制单元（10）计算进入和离开催化转化器（34）的废气的归一化空燃比，并执行数值积分，以确定催化转化器（34）中的催化剂的储氧能力和氧解吸能力。 将催化剂的计算氧气存储和解吸能力与阈值进行比较以确定催化转化器（34）的性能。
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公开(公告)号：US5387253A
公开(公告)日：1995-02-07
申请号：US997431
申请日：1992-12-28
CPC分类号： G01M15/11
摘要： A system, and corresponding method, for detecting the presence of a misfire condition by interpreting spectral activity of a running engine includes a device (309, 313) for measuring a characteristic, preferably an acceleration characteristic indicative of the running engine's performance, A spectral discrimination device (319), preferably a digital filter, receives a composite signal (317) provided by the measuring device (309, 313). The digital filter (319) provides a normal firing signal (321), corresponding to spectral energy attributable to a portion of the composite signal (317) representative of a normal firing condition in the running engine, and a misfire signal (323), corresponding to spectral energy attributable to another portion of the composite signal (317) representative of a misfiring condition in the running engine. A comparison device (325) provides and indication of a misfire condition (327) when a magnitude of the misfire signal (323) exceeds a magnitude of the normal firing signal (321).
摘要翻译： 用于通过解释运行发动机的频谱活动来检测失火状况的存在的系统和相应的方法包括用于测量特性的装置（309,313），优选地是表示运行的发动机性能的加速度特性。A光谱辨别 设备（319），优选数字滤波器，接收由测量设备（309,313）提供的复合信号（317）。 数字滤波器（319）提供正常点火信号（321），其对应于代表运行发动机中正常点火条件的复合信号（317）的一部分的光谱能量，以及失火信号（323），对应于 归因于代表运行发动机中的失火状态的复合信号（317）的另一部分的光谱能量。 当失火信号（323）的大小超过正常点火信号（321）的大小时，比较装置（325）提供和指示失火状态（327）。
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5.发明授权Fuel control method and system with on-line learning of open-loop fuel compensation parameters 失效具有在线学习开环燃油补偿参数的燃油控制方法和系统
公开(公告)号：US5743244A
公开(公告)日：1998-04-28
申请号：US751291
申请日：1996-11-18
CPC分类号： F02D41/047 , F02D41/1402 , F02D41/2458 , F02D2041/141 , F02D2041/1433
摘要： A method and system for fuel delivery to an engine (400) measures when an exhaust gas sensor (413) is in a non-lit-off condition and when the exhaust gas sensor is in a lit-off condition. A control device (409) estimates fuel puddle dynamics for an intake system of the engine when the exhaust gas sensor is in the lit-off condition, and adapts (511) an open-loop fuel parameter table (229) dependent on the estimated fuel puddle dynamics. The control device (409) adjusts fuel delivery to the engine dependent on the fuel puddle dynamics when the exhaust gas sensor is in the lit-off condition, and adjusts fuel delivery to the engine dependent on the open-loop fuel parameter table (229) when the exhaust gas sensor is in the non-lit-off condition.
摘要翻译： 一种用于向发动机（400）输送燃料的方法和系统，当废气传感器（413）处于非点灯状态和排气传感器处于点火状态时，测量。 当排气传感器处于点火状态时，控制装置（409）估计用于发动机的进气系统的燃料水池动力学，并且根据估计的燃料适应（511）开环燃料参数表（229） 水坑动力学 当废气传感器处于点火状态时，控制装置（409）根据燃料水坑动力学来调节向发动机的燃料输送，并且根据开环燃料参数表（229）调节向发动机的燃料输送， 当排气传感器处于非点亮状态时。
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公开(公告)号：US08588351B2
公开(公告)日：2013-11-19
申请号：US11843334
申请日：2007-08-22
CPC分类号： H04B1/0092 , H04B1/0003
摘要： Apparatus may be provided including a spectrum analyzer and decision circuitry. The spectrum analyzer may be configured to ascertain wireless signal signature data from a wide range of frequency bands. The decision circuitry may be configured to modify operation of one or both of a receiver and a transmitter based on the signal signature data.
摘要翻译： 可以提供包括频谱分析仪和判定电路的装置。 频谱分析器可以被配置为从宽范围的频带确定无线信号签名数据。 决定电路可以被配置为基于信号签名数据来修改接收机和发射机之一或两者的操作。
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7.发明授权公开(公告)号：US07945004B2
公开(公告)日：2011-05-17
申请号：US11956710
申请日：2007-12-14
申请人： Brian D. Storm , John R. Barr , Kevin J. Bush , Gregory W. Chance
发明人： Brian D. Storm , John R. Barr , Kevin J. Bush , Gregory W. Chance
CPC分类号： H04B1/406
摘要： A method and apparatus for detecting a frequency band and mode of operation using recursive sampling and narrowing down is disclosed. The method comprises sampling (215) by a multi-mode wireless communication device, a broad operational frequency spectrum at a first sampling rate to produce a first set of discrete signal samples. Then, the wireless communication device compares (230, 240) at least one of the energy graphs of the first set of discrete signal samples with at least one protocol-specific signature to confirm (245), if an approximate match is found. When one or more approximate matches are found, the wireless communication device narrows down (250) the broad frequency spectrum to a reduced set of frequency band(s) that correspond to the matched protocol-specific signature(s). Then the steps of sampling (215), comparing (230, 240), confirming (245), and narrowing down (250) are recursively followed till a frequency band and mode of operation is confirmed.
摘要翻译： 公开了一种使用递归采样和缩小来检测频带和操作模式的方法和装置。 该方法包括以多模式无线通信设备采样（215）第一采样率的宽工作频谱以产生第一组离散信号采样。 然后，无线通信设备将第一组离散信号样本的能量图中的至少一个与至少一个协议特定签名进行比较（230,240），以确定（245），如果发现近似匹配。 当找到一个或多个近似匹配时，无线通信设备将宽频谱缩小（250）到对应于匹配协议特定签名的一组减少的频带。 然后递归地跟踪采样（215），比较（230,240），确认（245）和缩小（250）的步骤，直到确定了频带和操作模式。
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8.发明授权
公开(公告)号：US5535135A
公开(公告)日：1996-07-09
申请号：US111233
申请日：1993-08-24
申请人： Kevin J. Bush , Sanjay Dua , Neil J. Adams , Craig R. Markyvech
发明人： Kevin J. Bush , Sanjay Dua , Neil J. Adams , Craig R. Markyvech
IPC分类号： G01N27/419 , F02D35/00 , F02D41/00 , F02D41/14 , F02D41/34 , F02D45/00 , G01M15/10 , G01N27/26 , G01N27/62
CPC分类号： F02D41/008 , F02D41/1401 , F02D41/1473 , F02D41/1481 , G01M15/104 , F02D2041/1415 , F02D2041/1416 , F02D2041/1417 , F02D2041/1433 , F02D41/0085 , F02D41/1456
摘要： A system, and a corresponding method, for measuring a chemical concentration of a gas exhausted from exhaust ports (409, 413) of a multi-cylinder internal combustion engine (401) includes a gas sensing device. This device (419) is preferably a UEGO (Universal Exhaust Gas Oxygen) sensor. The gas exhausted is present in a substantially stable chemical concentration (706, 718) at a collection point (420) during intervals (738, 742) of engine angular rotation corresponding to the exhaust cycles. The UEGO sensor (419) measures the gas exhausted from the exhaust ports (409, 413) and provides a sensory output signal (743) that, during the intervals (738, 742) of engine angular rotation corresponding to each of the exhaust cycles, approaches (737, 741) a substantially stable value representative of the chemical concentration of the gas (706, 718) exhausted during the associated exhaust cycle. The sensory output signal (743) is coupled to an engine control system (431) that is executing signal reconstruction method steps (500, 600). These signal reconstruction steps (500, 600) are preferably based on a Kalman-Bucy state estimator in which a constituent gas signal P.sub.oe (745) that has a substantially constant amplitude during the intervals (738, 742), is reconstructed by the Kalman-Bucy state estimation reconstruction process (500, 600). The described improved method, and system, can compensate for the static and dynamic temporal and spacial effects, characteristic of the multi-cylinder engine exhaust system and the difference in sensory response to rich and lean exhaust gases, of the UEGO (419) sensor.
摘要翻译： 用于测量从多气缸内燃机（401）的排气口（409,413）排出的气体的化学浓度的系统和相应的方法包括气体感测装置。 该装置（419）优选为UEGO（通用废气氧）传感器。 在对应于排气循环的发动机角旋转的间隔（738,742）期间，排出的气体在收集点（420）处以基本稳定的化学物质浓度（706,718）存在。 UEGO传感器（419）测量从排气口（409,413）排出的气体，并提供感测输出信号（743），在对应于每个排气循环的发动机角旋转的间隔（738,742）期间， 方法（737,741）表示在相关联的排气循环期间排出的气体（706,718）的化学浓度的基本上稳定的值。 感测输出信号（743）耦合到执行信号重建方法步骤（500,600）的发动机控制系统（431）。 这些信号重建步骤（500,600）优选地基于卡尔曼 - 布西状态估计器，其中在间隔（738,742）期间具有基本上恒定幅度的组成气体信号Poe（745）由卡尔曼 - Bucy状态估计重建过程（500,600）。 所描述的改进的方法和系统可以补偿UEGO（419）传感器的静态和动态时空和空间效应，多缸发动机排气系统的特性和对富排气和贫排气的感觉响应的差异。
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公开(公告)号：US5819714A
公开(公告)日：1998-10-13
申请号：US636729
申请日：1996-04-19
CPC分类号： F02D41/1402 , F02D41/047 , F02D2041/141 , F02D2041/1415 , F02D2041/1417 , F02D2041/1418 , F02D2041/1433 , F02D2041/1434 , F02D41/1406
摘要： A method and system for adaptive transient fuel compensation in a cylinder of a multi-cylinder engine estimates fuel puddle dynamics for the cylinder by determining parameters of a wall-wetting model every engine cycle of the multi-cylinder engine. Fuel delivery to the cylinder is adjusted dependent on the estimated fuel puddle dynamics.
摘要翻译： 在多缸发动机的气缸中的自适应瞬态燃料补偿的方法和系统通过确定多气缸发动机的每个发动机循环的壁湿润模型的参数来估计气缸的燃料水池动力学。 根据估计的燃料水坑动力学来调整向气缸的燃料输送。
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10.发明授权
公开(公告)号：US5762054A
公开(公告)日：1998-06-09
申请号：US713577
申请日：1996-09-13
CPC分类号： F02D41/047
摘要： A method and system for adaptive transient fuel compensation in an engine (300) estimates fuel puddle dynamics for a cylinder in an engine by determining parameters of a wall-wetting model on every engine cycle by measuring a temporal delay (407) between when an identification fuel charge is injected (405) and when a binary-type exhaust gas oxygen sensor (213) switches state. Fuel delivery to the cylinder is adjusted (417) dependent on the estimated fuel puddle dynamics which are a function of the measured temporal delay (407).
摘要翻译： 发动机（300）中的自适应瞬态燃料补偿的方法和系统通过在每个发动机循环之间确定一个时间延迟（407）来确定每个发动机循环之间的时间延迟（407）来估计发动机中汽缸的燃料水池动力学 喷射燃料（405），二进制型排气氧传感器（213）切换状态。 根据作为测量的时间延迟的函数的估计燃料水坑动力学（407），调节到气缸的燃料输送（417）。
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