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11. 发明授权

US6092368A Function diagnostic system for an exhaust gas purifying apparatus in an internal combustion engine 失效
标题翻译：内燃机废气净化装置的功能诊断系统
公开(公告)号：US6092368A
公开(公告)日：2000-07-25
申请号：US808834
申请日：1997-02-28
申请人： Toshio Ishii , Toshio Manaka , Yutaka Takaku , Kiyoshi Miura
发明人： Toshio Ishii , Toshio Manaka , Yutaka Takaku , Kiyoshi Miura
IPC分类号： G01N27/409 , F01N3/00 , F01N3/20 , F01N11/00 , G01M15/04 , G01N27/26
CPC分类号： F01N11/00 , F01N2550/02 , Y02T10/47
摘要： In a diagnostic system for an exhaust gas purifying apparatus in an internal combustion engine, such as a diagnostic system suitable for evaluating the exhaust gas purifying performance of a specific component, as an exhaust gas component concentration corresponding to an operating condition of the engine or an operating condition of the catalyst is detected using an exhaust gas component system, and the evaluation and diagnosis of the exhaust gas purifying apparatus are conducted on the basis of the thus-detected value directly or after subjecting it to an integral processing. With such a diagnostic system, it is not necessary to dispose a sensor upstream of the catalyst in the exhaust gas purifying apparatus, for diagnosis of the catalyst, thus permitting the system to be less expensive, highly durable and afford a high diagnostic accuracy according to operating conditions.
摘要翻译：在内燃机的排气净化装置的诊断系统中，例如适用于评价特定部件的排气净化性能的诊断系统，作为与发动机的运转状态对应的排气成分浓度，使用废气成分系统检测催化剂的运转状态，并且基于这样检测的值直接进行排气净化装置的评价和诊断，或对其进行整体处理。通过这样的诊断系统，不需要在废气净化装置中将催化剂上游设置在催化剂的诊断中，从而允许系统更便宜，高度耐用，并且根据运行条件。

12. 发明授权

US6085132A Control method and apparatus for diagnosing vehicles 失效
标题翻译：用于诊断车辆的控制方法和装置
公开(公告)号：US6085132A
公开(公告)日：2000-07-04
申请号：US187529
申请日：1998-11-06
申请人： Toshio Ishii , Takashi Mukaihira , Yutaka Takaku , Kazuya Kawano , Kiyoshi Miura
发明人： Toshio Ishii , Takashi Mukaihira , Yutaka Takaku , Kazuya Kawano , Kiyoshi Miura
IPC分类号： F01N3/20 , B60W50/02 , F01N3/22 , F02D17/04 , F02D41/14 , F02D41/16 , F02D41/18 , F02D41/22 , F02D41/26 , F02D43/00 , F02D45/00 , F02M25/07 , F02M25/08 , F02P5/15 , G06F7/00
CPC分类号： F02D41/266 , F02D41/22 , B60W2050/021 , F02D2041/227
摘要： A diagnostic and control system first checks the current operation status of the vehicle engine, when a malfunction or abnormal condition is detected by diagnostic sensors. A selection of optimum corrective measures is then made and carried out taking into account the safety of the vehicle, based on current operational status of the engine. For this purpose, a set of prioritized corrective measures is determined beforehand for each of the individual monitored items, according to detected changes in the engine operating status. The individual control measures are selected considering the safety of the vehicle, possible measures to correct the malfunction, assuring vehicle operability, and maintaining appropriate engine operating parameters such as exhaust gas mixture, fuel consumption and the like.
摘要翻译：当诊断传感器检测到故障或异常情况时，诊断和控制系统首先检查车辆发动机的当前运行状态。然后根据发动机的当前运行状态，考虑到车辆的安全性，进行最佳的纠正措施的选择。为此，根据检测到的发动机运行状态的变化，预先确定针对每个被监视项目的一组优先排序的校正措施。考虑到车辆的安全性，可能的措施来纠正故障，确保车辆的可操作性以及维持诸如废气混合物，燃料消耗等的适当的发动机操作参数，来选择单独的控制措施。

13. 发明授权

US5485374A Combustion-conditon diagnostic system and method for a multicylinder engine 失效
标题翻译：用于多缸发动机的燃烧条件诊断系统和方法
公开(公告)号：US5485374A
公开(公告)日：1996-01-16
申请号：US70226
申请日：1993-06-02
申请人： Yutaka Takaku , Toshio Ishii
发明人： Yutaka Takaku , Toshio Ishii
IPC分类号： F02D41/04 , F02D41/14 , F02D41/22 , F02D45/00 , F02P5/152 , F02P5/153 , G01M15/11 , G06F17/00
CPC分类号： G01M15/11 , F02D41/1401 , F02D41/22 , F02D2041/1415
摘要： A system for accurately diagnosing the combustion condition of a multicylinder engine from the fluctuation of revolution speeds among individual cylinders in a wide range of engine revolution speeds, comprising a functional pattern storage which stores therein a functional pattern on the fluctuational error of a combustion condition parameter corresponding to the variation of the revolution speeds; a learning unit which specifies the functional pattern on the basis of the revolution speeds and the combustion condition parameter successively for the respective cylinders while making corrections if necessary, and which evaluates the fluctuational error of the combustion condition parameter for the revolution speed of a predetermined one of the cylinders; and a correction unit which subtracts the evaluated fluctuational error from the combustion condition parameter for the predetermined cylinder, and which sets the difference of the subtraction as a new combustion condition parameter.
摘要翻译：一种用于在多个发动机转速范围内的各个气缸之间的转速的波动中精确地诊断多缸发动机的燃烧状态的系统，包括功能模式存储器，其中存储有关燃烧条件参数的波动误差的功能模式对应于转速的变化; 学习单元，如果需要，在进行校正的情况下，根据各个气缸的转速和燃烧条件参数，基于转速和燃烧条件参数来指定功能模式，并且对于预定的转速的燃料条件参数的波动误差进行评价的气缸; 以及校正单元，其从所述预定气缸的燃烧条件参数中减去所评估的波动误差，并且将所述减法的差设置为新的燃烧条件参数。

14. 发明申请

US20050016160A1 Diagnostic equipment for an exhaust gas cleaning apparatus 失效
标题翻译：废气净化设备诊断设备
公开(公告)号：US20050016160A1
公开(公告)日：2005-01-27
申请号：US10922868
申请日：2004-08-23
申请人： Yutaka Takaku , Toshio Ishii
发明人： Yutaka Takaku , Toshio Ishii
IPC分类号： F01N3/20 , F01N3/22 , F01N11/00 , F02D35/00 , F02D41/14 , F02D41/22 , F02D45/00 , F02P17/12 , F01N3/00 , F01N7/00
CPC分类号： F02D41/1441 , F01N3/22 , F01N11/00 , F01N11/007 , F01N2550/02 , F01N2550/14 , F02D35/003 , F02D41/1498 , F02D41/221 , F02D2200/0402 , F02D2200/1015 , Y02T10/40 , Y02T10/47
摘要： A diagnostic equipment for an exhaust gas cleaning apparatus installed for an engine, comprising a misfire detector which detects the misfire of the engine, and a secondary-air-system failure detector which detects the failure of a secondary air system. An index corrector corrects a deterioration index calculated by a deterioration-index calculator, in accordance with the detected result of the detector. A deterioration decision unit decides if the diagnostic equipment has failed, by the use of the corrected deterioration index. In a case where the extent of the misfire or the like is severe, a decision interrupter interrupts the decision of the deterioration decision unit. Thus, even when the misfire of the engine or the failure of the secondary air system has occurred, the detection of the deterioration of a catalyst does not err. It is therefore avoided to erroneously replace the catalyst which has not deteriorated yet, or to run the engine in spite of the deterioration of the catalyst.
摘要翻译：一种用于发动机安装的废气净化装置的诊断装置，包括检测发动机失火的失火检测器和检测二次空气系统故障的二次空气系统故障检测器。索引校正器根据检测器的检测结果来校正由劣化指数计算器计算出的劣化指数。恶化判定单元通过使用校正后的劣化指数来决定诊断设备是否失败。在失火等的程度严重的情况下，决策中断器中断劣化判定单元的判定。因此，即使发动机失火或二次空气系统发生故障，催化剂劣化的检测也不会发生错误。因此，尽管催化剂劣化，但是也可以避免错误地更换尚未劣化的催化剂或运行发动机。

15. 发明授权

US06523340B1 Method and apparatus for diagnosing engine exhaust gas purification system 失效
标题翻译：用于诊断发动机废气净化系统的方法和装置
公开(公告)号：US06523340B1
公开(公告)日：2003-02-25
申请号：US09499456
申请日：2000-02-07
申请人： Nobuo Kurihara , Hiroshi Kimura , Yutaka Takaku , Toshio Ishii
发明人： Nobuo Kurihara , Hiroshi Kimura , Yutaka Takaku , Toshio Ishii
IPC分类号： F01N300
CPC分类号： F01N11/005 , F01N2550/02 , Y02T10/47
摘要： A diagnosis apparatus for diagnosing a catalytic converter of a motor vehicle as to whether the catalyst suffers deterioration by estimating a temperature of the catalyst or that of the exhaust gas in the vicinity of the catalyst on the basis of a plurality of engine parameters to thereby decide deterioration of the catalyst by using as an index the estimated temperature. Diagnosing method and apparatus capable of diagnosing deterioration of the catalyst with a high reliability are realized.
摘要翻译：一种用于诊断机动车辆的催化转化器的诊断装置，其特征在于，基于多个发动机参数，通过估计催化剂的温度或催化剂附近的排气的温度来判定催化剂是否发生劣化，从而决定通过使用估计温度作为指标，催化剂的劣化。实现能够高可靠性地诊断催化剂劣化的诊断方法和装置。

16. 发明授权

US6089080A Diagnosis apparatus for evaporation system 失效
标题翻译：蒸发系统诊断仪
公开(公告)号：US6089080A
公开(公告)日：2000-07-18
申请号：US990411
申请日：1997-12-15
申请人： Yutaka Takaku , Toshio Ishii , Kazuya Kawano
发明人： Yutaka Takaku , Toshio Ishii , Kazuya Kawano
IPC分类号： F02M25/08 , G01L3/26
CPC分类号： F02M25/0809
摘要： A diagnosis apparatus for an evaporation system, and particularly, in an evaporation system having a gauge valve in the evaporation system without being affected by a change in internal pressure of the evaporation system, a residual amount of fuel in a fuel tank and an atmospheric density. The diagnosis apparatus is capable of precisely diagnosing the evaporation system even in the case where dirt or stain or the like adheres to the gauge valve and an air cleaner. A gauge pipe is branched between a fuel tank and a purge valve and opened to an intake pipe or atmosphere, and a gauge valve is arranged in the gauge pipe. A state detector is provided for detecting the state of a gauge system comprising the gauge valve and the gauge pipe, and a correcting feature corrects the results of diagnosis by abnormality determination apparatus on the basis of the results of detection by the state detector.
摘要翻译：一种用于蒸发系统的诊断装置，特别是在蒸发系统中具有量子阀的蒸发系统中，不受蒸发系统的内部压力变化的影响，燃料箱中的燃料剩余量和大气密度。即使在污垢或污渍等附着在量规阀和空气净化器的情况下，诊断装置也能够精确地诊断蒸发系统。计量管在燃料箱和净化阀之间分支，并向进气管或大气敞开，量规管内设有量规阀。提供了一种用于检测包括量规阀和量规管的量规系统的状态的状态检测器，并且校正特征根据状态检测器的检测结果来校正异常判定装置的诊断结果。

17. 发明授权

US5964811A Control method and apparatus for diagnosing vehicles 失效
公开(公告)号：US5964811A
公开(公告)日：1999-10-12
申请号：US877857
申请日：1997-04-18
申请人： Toshio Ishii , Takashi Mukaihira , Yutaka Takaku , Kazuya Kawano , Kiyoshi Miura
发明人： Toshio Ishii , Takashi Mukaihira , Yutaka Takaku , Kazuya Kawano , Kiyoshi Miura
IPC分类号： F01N3/20 , B60W50/02 , F01N3/22 , F02D17/04 , F02D41/14 , F02D41/16 , F02D41/18 , F02D41/22 , F02D41/26 , F02D43/00 , F02D45/00 , F02M25/07 , F02M25/08 , F02P5/15 , G06G7/76
CPC分类号： F02D41/266 , F02D41/22 , B60W2050/021 , F02D2041/227
摘要： A diagnostic and control system first checks the current operation status of the vehicle engine, when a malfunction or abnormal condition is detected by diagnostic sensors. A selection of optimum corrective measures is then made and carried out taking into account the safety of the vehicle, based on current operational status of the engine. For this purpose, a set of prioritized corrective measures is determined beforehand for each of the individual monitored items, according to detected changes in the engine operating status. The individual control measures are selected considering the safety of the vehicle, possible measures to correct the malfunction, assuring vehicle operability, and maintaining appropriate engine operating parameters such as exhaust gas mixture, fuel consumption and the like.

18. 发明授权

US5765540A Method of diagnosing an evaporative system 失效
标题翻译：诊断蒸发系统的方法
公开(公告)号：US5765540A
公开(公告)日：1998-06-16
申请号：US873774
申请日：1997-06-12
申请人： Toshio Ishii , Yutaka Takaku , Kazuya Kawano
发明人： Toshio Ishii , Yutaka Takaku , Kazuya Kawano
IPC分类号： G01M15/04 , F02B77/08 , F02M25/08 , F02M37/20 , F02M37/04
CPC分类号： F02M37/20
摘要： This invention performs a diagnosis on the evaporative system in a short period of time by pulling down the evaporative system with a negative pressure of the intake manifold of the engine and by checking a change in the internal pressure of the evaporative system being pulled down. To realize this diagnosis, when introducing a negative pressure from the intake manifold, the pulldown rate is changed based on the internal pressure of the evaporative system. Because the pulldown rate is corrected and controlled during the diagnostic process, a preliminary process for the diagnosis can be eliminated, shortening the time required for the diagnosis. Further, this method allows the evaporative system to be diagnosed without being influenced by external factors such as atmospheric pressure, the internal volume of the evaporative system, the amount of evaporative gas generated, or presence or absence of leakage.
摘要翻译：本发明通过在发动机的进气歧管的负压下拉下蒸发系统并通过检查被抽吸的蒸发系统的内部压力的变化来在短时间内对蒸发系统进行诊断。为了实现该诊断，当从进气歧管引入负压时，下拉速率基于蒸发系统的内部压力而改变。由于在诊断过程中校准和控制下拉率，因此可以消除诊断的初步过程，缩短诊断所需的时间。此外，该方法允许蒸发系统被诊断而不受诸如大气压，蒸发系统的内部体积，产生的蒸发气体量或存在或不存在泄漏的外部因素的影响。

19. 发明授权

US5740676A Diagnostic apparatus for exhaust gas clarification apparatus for internal combustion engine 失效
标题翻译：内燃机废气净化装置诊断装置
公开(公告)号：US5740676A
公开(公告)日：1998-04-21
申请号：US603345
申请日：1996-02-20
申请人： Rogelio B. Agustin , Akihito Numata , Eisaku Fukuchi , Yutaka Takaku , Toshio Ishii
发明人： Rogelio B. Agustin , Akihito Numata , Eisaku Fukuchi , Yutaka Takaku , Toshio Ishii
IPC分类号： F02B77/08 , F01N3/20 , F01N3/24 , F01N11/00 , F01N13/02 , F02D41/14 , F02D45/00 , F01N3/28
CPC分类号： F01N3/2053 , F01N11/007 , F01N13/009 , F01N2550/02 , Y02T10/47
摘要： A diagnostic apparatus for exhaust gas clarification apparatus for internal combustion engine is disclosed. The diagnostic apparatus can diagnoses the individual catalyst independently by means that an air/fuel ratio sensor is mounted before and after the individual catalyst, and that the individual catalyst is diagnosed by estimating the correlation of the output signals from the air/fuel ratio sensors mounted before and after the individual catalyst, and furthermore, that the individual diangosis operation is performed at distinctive operation regions adequate for their corresponding diagnostic mode.
摘要翻译：公开了一种内燃机废气净化装置的诊断装置。诊断装置可以通过在单个催化剂之前和之后安装空气/燃料比传感器来独立地诊断各个催化剂，并且通过估计安装的空气/燃料比传感器的输出信号的相关性来诊断各个催化剂在个别催化剂之前和之后，此外，单独的个体呼吸系统操作在适合其相应诊断模式的特定操作区域进行。

20. 发明授权

US5400592A Diagnostic apparatus for catalytic converter of an internal combustion engine 失效
标题翻译：内燃机催化转化器诊断装置
公开(公告)号：US5400592A
公开(公告)日：1995-03-28
申请号：US194590
申请日：1994-02-10
申请人： Takashi Mukaihira , Toshio Ishii , Yutaka Takaku , Akihito Numata
发明人： Takashi Mukaihira , Toshio Ishii , Yutaka Takaku , Akihito Numata
IPC分类号： F02D45/00 , F01N3/20 , F01N11/00 , F02D41/12 , F02D41/14
CPC分类号： F01N11/007 , F01N2550/02 , F01N2900/0422 , Y02T10/47
摘要： A catalytic diagnostic apparatus for determining whether a catalyst of an internal combustion engine has deteriorated as disclosed. Air-fuel ratio sensors are placed at the upstream and downstream sides of the catalytic converter, and the output signal from the upstream air-fuel sensor is used to control the air-fuel mixture provided to the engine via the fuel injectors, in a conventional closed loop operation. Diagnosis of the condition of the catalytic converter is performed only when selected engine operating parameters fall within a predetermined diagnostic range. When the engine is operated in the diagnostic range, the condition of the catalytic converter is analyzed by calculating a deterioration index based on a comparison of the variation of the output signals from the upstream and downstream air-fuel ratio sensors. In a preferred embodiment, a look-up table is provided to correct the deterioration index, based on the intake air flow rate to the engine, and on the cyclic frequency of the variation of the downstream air-fuel ratio sensor.
摘要翻译：一种用于确定内燃机的催化剂是否已经劣化的催化诊断装置。空燃比传感器被放置在催化转化器的上游侧和下游侧，并且来自上游空气 - 燃料传感器的输出信号用于通过燃料喷射器控制提供给发动机的空气 - 燃料混合物，闭环操作。催化转化器的状态的诊断仅在选定的发动机运转参数落在规定的诊断范围内的情况下进行。当发动机在诊断范围内操作时，通过基于上游和下游空燃比传感器的输出信号的变化的比较来计算劣化指数来分析催化转化器的状态。在优选实施例中，提供了一个查找表，用于根据对发动机的进气流量和下游空燃比传感器变化的循环频率来校正劣化指数。

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