-
1.发明授权Automotive engine misfire detection system including a bit-serial based recurrent neuroprocessor 失效汽车发动机失火检测系统包括基于位串的反复式神经处理器公开(公告)号：US06434541B1
公开(公告)日：2002-08-13
申请号：US09284843
申请日：1999-04-21
申请人： Raoul Tawel , Nazeeh Aranki , Lee A. Feldkamp , Gintaras V. Puskorius , Kenneth A. Marko , John V. James
发明人： Raoul Tawel , Nazeeh Aranki , Lee A. Feldkamp , Gintaras V. Puskorius , Kenneth A. Marko , John V. James
IPC分类号： G06F1518
CPC分类号： G01M15/11
摘要： An engine diagnostic system includes a bit-serial based recurrent neuroprocessor for processing data from an internal combustion engine in order to diagnose misfires in real-time and reduces the number of neurons required to perform the task by time multiplexing groups of neurons from a candidate pool of neurons to achieve the successive hidden layers of the recurrent network topology.
摘要翻译： 发动机诊断系统包括用于处理来自内燃机的数据的基于位串的反复式神经处理器，以便实时地诊断失火，并且通过从候选池时间复用神经元组来减少执行任务所需的神经元数量 的神经元来实现复发网络拓扑的连续隐藏层。
-
2.发明授权Adaptive correction of torsional and wheel profile position irregularities for misfire detection 失效用于失火检测的扭转和轮廓位置不规则的自适应校正
公开(公告)号：US5531108A
公开(公告)日：1996-07-02
申请号：US417357
申请日：1995-04-05
CPC分类号： G01M15/11
摘要： A crankshaft based misfire detector for an internal combustion engine detects and identifies misfire over a broad range of engine operating conditions by establishing correction factors to compensate for crankshaft torsional oscillations and static wheel profile errors which corrupt the acceleration signals used to detect misfire. The correction factors are adaptively determined during in-use engine operation and are updated in one manner for most firings but in another manner for any cylinder firing which had the relatively lowest corrected acceleration within an engine cycle.
摘要翻译： 用于内燃机的基于曲轴的失火探测器通过建立校正因子来检测和识别在大范围的发动机操作条件下的失火，以补偿曲轴扭转振荡和损坏用于检测失火的加速度信号的静态车轮轮廓误差。 校正因子在使用中发动机运行期间自适应地确定，并且以一种方式更新以用于大多数发动，但是对于在发动机循环内具有相对较低的校正加速度的任何气缸点火来进行更新。
-
公开(公告)号：US5095742A
公开(公告)日：1992-03-17
申请号：US650266
申请日：1991-02-04
CPC分类号： G01M15/042 , F02D41/1497 , G01M15/11
摘要： A method and apparatus are provided for reliably detecting misfires in an internal combustion engine during actual driving conditions by monitoring fluctuations in engine speed between consecutive firing intervals. An average acceleration over a series of firing intervals is removed from an individual acceleration measurement corresponding to a particular firing interval to give an acceleration deviation which is then normalized to an expected torque to provide a power loss measurement. The power loss measurement indicates the occurrence of a misfire with a high signal-to-noise ratio. The information derived from misfire detection can be used to prevent destruction of a catalytic converter by unburned fuel mixtures and can be used to improve vehicle driveability by correcting for or indicating needed service for the vehicle. The misfire detection is implemented using existing sensors and processors and is adapted to be done on-board a vehicle in real time.
摘要翻译： 提供了一种方法和装置，用于通过监测连续点火间隔之间的发动机转速的波动来在实际行驶条件下可靠地检测内燃机中的火灾。 从与特定点火间隔相对应的单个加速度测量中去除一系列点火间隔上的平均加速度，以给出加速度偏差，然后将该加速度偏差归一化为预期转矩以提供功率损耗测量。 功率损耗测量表明发生具有高信噪比的失火。 来自失火检测的信息可用于防止未燃燃料混合物对催化转化器的破坏，并且可用于通过校正或指示车辆所需的服务来改善车辆驾驶性能。 使用现有的传感器和处理器实现失火检测，并且适于实时地在车载车辆上完成。
-
公开(公告)号：US5109695A
公开(公告)日：1992-05-05
申请号：US710841
申请日：1991-06-05
CPC分类号： F02D41/1497 , G01M15/11
摘要： A method and apparatus are provided for reliably detecting misfires in an internal combustion engine during actual driving conditions by monitoring fluctuations in engine speed between consecutive firing intervals. An average acceleration over a series of firing intervals is removed from an individual acceleration measurement corresponding to a particular firing interval to give an acceleration deviation which is then normalized to an expected torque to provide a power loss measurement. The power loss measurement indicates the occurrence of a misfire with a high signal-to-noise ratio. The information derived from misfire detection can be used to prevent destruction of a catalytic converter by unburned fuel mixtures and can be used to improve vehicle driveability by correcting for or indicating needed service for the vehicle. The misfire detection is implemented using existing sensors and processors and is adapted to be done on-board a vehicle in real time. Noise present in the acceleration data is measured and a no-test condition is recognized depending on the magnitude of the measured noise.
摘要翻译： 提供了一种方法和装置，用于通过监测连续点火间隔之间的发动机转速的波动来在实际行驶条件下可靠地检测内燃机中的火灾。 从与特定点火间隔相对应的单个加速度测量中去除一系列点火间隔上的平均加速度，以给出加速度偏差，然后将该加速度偏差归一化为预期转矩以提供功率损耗测量。 功率损耗测量表明发生具有高信噪比的失火。 来自失火检测的信息可用于防止未燃燃料混合物对催化转化器的破坏，并且可用于通过校正或指示车辆所需的服务来改善车辆驾驶性能。 使用现有的传感器和处理器实现失火检测，并且适于实时地在车载车辆上完成。 测量加速度数据中存在的噪声，并根据测得的噪声的大小来识别无测试条件。
-
5.发明授权
公开(公告)号：US5559285A
公开(公告)日：1996-09-24
申请号：US349580
申请日：1994-12-05
申请人： Bruce D. Bryant , Kenneth A. Marko , John V. James
发明人： Bruce D. Bryant , Kenneth A. Marko , John V. James
CPC分类号： G01M15/11 , G01M15/106
摘要： Misfiring of individual cylinders in an internal combustion engine 70 is detected based on simultaneous use of two or more different methods of misfire detection which examine different combustion-related parameters of engine operation, such as crankshaft acceleration and exhaust gas pressure. An analyzer 76 produces a final misfire determination M.sub.f (i) based on the simultaneously obtained misfire determinations in order to provide greater coverage of the speed-load range of engine 70 and to provide increased confidence and accuracy in calling misfires in the portion of the speed-load range where both misfire methods are presumed to function.
摘要翻译： 基于同时使用两种或更多种不同的失火检测方法来检测内燃机70中的各个气缸的点火，其检查诸如曲轴加速度和排气压力的发动机运行的不同燃烧相关参数。 分析器76基于同时获得的失火确定来产生最终失火确定Mf（i），以便提供对发动机70的速度负载范围的更大覆盖，并且在速度部分中提供调用失火的增加的置信度和精度 - 两种失火方法都被推定为起作用的负载范围。
-
公开(公告)号：US5044195A
公开(公告)日：1991-09-03
申请号：US572650
申请日：1990-08-24
CPC分类号： F02D41/1497 , G01M15/11
摘要： A method and apparatus are provided for reliably detecting misfires in an internal combustion engine during actual driving conditions by monitoring fluctuations in engine speed between consecutive firing intervals. An average acceleration over a series of firing intervals is removed from an individual acceleration measurement corresponding to a particular firing interval to give an acceleration deviation which is then normalized to an expected torque to provide a power loss measurement. The power loss measurement indicates the occurrence of a misfire with a high signal-to-noise ratio. The information derived from misfire detection can be used to prevent destruction of a catalytic converter by unburned fuel mixtures and can be used to improve vehicle driveability by correcting for or indicating needed service for the vehicle. The misfire detection is implemented using existing sensors and processors and is adapted to be done on-board a vehicle in real time.
摘要翻译： 提供了一种方法和装置，用于通过监测连续点火间隔之间的发动机转速的波动来在实际行驶条件下可靠地检测内燃机中的火灾。 从与特定点火间隔相对应的单个加速度测量中去除一系列点火间隔上的平均加速度，以给出加速度偏差，然后将该加速度偏差归一化为预期转矩以提供功率损耗测量。 功率损耗测量表明发生具有高信噪比的失火。 来自失火检测的信息可用于防止未燃燃料混合物对催化转化器的破坏，并且可用于通过校正或指示车辆所需的服务来改善车辆驾驶性能。 使用现有的传感器和处理器实现失火检测，并且适于实时地在车载车辆上完成。
-
7.发明授权
公开(公告)号：US5528931A
公开(公告)日：1996-06-25
申请号：US417356
申请日：1995-04-05
摘要： A system and method compensates for systematic irregularities in measured engine velocities caused by torsional flexing in the crankshaft during rotation to improve the accuracy of misfire detection. A set of generated correction factors is stored in a table that are derived empirically using a test engine. The correction factors are adjusted during on-board operation of the engine whenever a safe adaptation time is determined.
摘要翻译： 一种系统和方法补偿了旋转期间由于曲轴扭转弯曲引起的测量发动机速度的系统不规则性，以提高失火检测的准确性。 一组生成的校正因子存储在根据经验使用测试引擎得出的表中。 每当确定安全的适应时间时，在发动机的车载操作期间调节校正因子。
-
公开(公告)号：US5044194A
公开(公告)日：1991-09-03
申请号：US650102
申请日：1991-02-04
CPC分类号： F02D41/1497 , G01M15/042 , G01M15/11
摘要： A method and apparatus are provided for reliably detecting misfires in an internal combustion engine during actual driving conditions by monitoring fluctuations in engine speed between consecutive firing intervals. An average acceleration over a series of firing intervals is removed from an individual acceleration measurement corresponding to a particular firing interval to five an acceleration deviation which is then normalized to an expected torque to provide a power loss measurement. The power loss measurement indicates the occurrence of a misfire with a high signal-to-noise ratio. The information derived from misfire detection can be used to prevent destruction of a catalytic converter by unburned fuel mixtures and can be used to improve vehicle driveability by correcting for or indicating needed sevice for the vehicle. The misfire detection is implemented using existing sensors and processors and is adapted to be done on-board a vehicle in real time.
摘要翻译： 提供了一种方法和装置，用于通过监测连续点火间隔之间的发动机转速的波动来在实际行驶条件下可靠地检测内燃机中的火灾。 从对应于特定点火间隔的单个加速度测量值除去一系列点火间隔的平均加速度到五个加速度偏差，然后加速度偏差被归一化为预期转矩以提供功率损耗测量。 功率损耗测量表明发生具有高信噪比的失火。 从失火检测得到的信息可用于防止未燃烧燃料混合物破坏催化转化器，并可用于通过校正或指示车辆的所需服务来改善车辆驾驶性能。 使用现有的传感器和处理器实现失火检测，并且适于实时地在车载车辆上完成。
-
9.发明授权Diagnostic system using pattern recognition for electronic automotive control systems 失效电子汽车控制系统使用模式识别的诊断系统
公开(公告)号：US5041976A
公开(公告)日：1991-08-20
申请号：US399683
申请日：1989-08-28
CPC分类号： F02D41/22 , G01R31/007 , F02D41/1405 , Y02T10/40 , Y10S706/911
摘要： A system is disclosed for diagnosing faults in electronic control systems wherein a large volume of information is exchanged between the electronic control processor and a mechanical system under its control. The data is acquired such that parameter vectors describing the system operation are formed. The vectors are provided to a pattern recognition system such as a neural network for classification according to the operating condition of the electronically controlled system. For diagnosis of electronically controlled engine operation, the parameters included in the vectors correspond to individual firing events occurring in the engine operating under a predetermined condition. The diagnostic system can be implemented as a service tool in an automotive service bay or can be implemented within the on-board electronic control system itself.
摘要翻译： 公开了一种用于诊断电子控制系统中的故障的系统，其中在电子控制处理器与其控制下的机械系统之间交换大量信息。 获取数据，从而形成描述系统操作的参数向量。 矢量被提供给模式识别系统，例如根据电子控制系统的操作条件进行分类的神经网络。 对于电控发动机操作的诊断，包括在矢量中的参数对应于在预定条件下运行的发动机中发生的各个点火事件。 诊断系统可以实现为汽车服务舱中的服务工具，或者可以在车载电子控制系统本身内实现。
-
公开(公告)号：US5587524A
公开(公告)日：1996-12-24
申请号：US433186
申请日：1995-05-03
CPC分类号： G01M15/11
摘要： A misfire detection assembly, used in conjunction with a motor vehicle having a fuel injector, an internal combustion engine and at least one output sensor, includes: a correlator which is electrically connected to the fuel injector and the output sensor wherein the correlator correlates firing events created by the fuel injector with an output signal created by the output sensor; a filter electrically connected to the correlator to receive the output signal and to compare the output signal against a variable threshold signal created by the filter; and a recorder, electrically connected to the filter, to record the firing events which exceed the variable threshold signal and those which do not exceed the variable threshold signal.
摘要翻译： 与具有燃料喷射器，内燃机和至少一个输出传感器的机动车辆结合使用的失火检测组件包括：电连接到燃料喷射器和输出传感器的相关器，其中相关器将发射事件相关联 由燃料喷射器产生的由输出传感器产生的输出信号; 电连接到相关器以接收输出信号并将输出信号与由滤波器产生的可变阈值信号进行比较的滤波器; 以及电连接到滤波器的记录器，以记录超过可变阈值信号的触发事件和不超过可变阈值信号的触发事件。
-
-
-
-
-
-
-
-
-
搜索结果
13 条记录 (耗时 0.022 秒)