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公开(公告)号：EP2594771A1
公开(公告)日：2013-05-22
申请号：EP11806817.0
申请日：2011-07-13
发明人： NAKAGAWA Shinji , NUMATA Akihito , FUKUCHI Eisaku
CPC分类号： F02D41/04 , F02D41/06 , F02D41/068 , F02D41/08 , F02D41/1459 , F02D41/1498 , F02D41/18 , F02D2200/0406 , F02D2200/0414 , F02D2200/101 , F02D2200/1012 , F02P5/15 , G01M15/05
摘要： The present invention relates to an exhaust performance diagnosis/control device of an engine, and relates specifically to a control device that diagnoses exhaust deterioration at the time of engine start or reduces exhaust gas at the time of start. HC discharged quantity at the time of engine start is diagnosed. The object of the present invention is to provide a means that detects efficiency of the engine,and a means that detects combustion stability of the engine, and to detect the HC discharged quantity until activation of a catalyst at the time of engine start based on efficiency of the engine and combustion stability of the engine.
摘要翻译： 发动机的排气性能诊断/控制装置技术领域本发明涉及发动机的排气性能诊断/控制装置，具体涉及一种诊断发动机起动时的排气恶化或者起动时排气减少的控制装置。 诊断发动机启动时的HC排放量。 本发明的目的是提供一种检测发动机的效率的装置，以及检测发动机的燃烧稳定性的装置，并且基于效率检测发动机起动时催化剂的活化之前的HC排出量 的发动机和发动机的燃烧稳定性。
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公开(公告)号：EP3150835B1
公开(公告)日：2020-04-08
申请号：EP15799458.3
申请日：2015-05-07
发明人： NAKAGAWA Shinji , HORI Toshio , NUMATA Akihito
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公开(公告)号：EP2594771B1
公开(公告)日：2018-01-03
申请号：EP11806817.0
申请日：2011-07-13
发明人： NAKAGAWA Shinji , NUMATA Akihito , FUKUCHI Eisaku
IPC分类号： F02D41/04 , F02D45/00 , F02D41/06 , F02D41/14 , F02D43/00 , F02P5/15 , F02D41/08 , F02D41/18 , G01M15/05
CPC分类号： F02D41/04 , F02D41/06 , F02D41/068 , F02D41/08 , F02D41/1459 , F02D41/1498 , F02D41/18 , F02D2200/0406 , F02D2200/0414 , F02D2200/101 , F02D2200/1012 , F02P5/15 , G01M15/05
摘要： The present invention relates to an exhaust performance diagnosis/control device of an engine, and relates specifically to a control device that diagnoses exhaust deterioration at the time of engine start or reduces exhaust gas at the time of start. HC discharged quantity at the time of engine start is diagnosed. The object of the present invention is to provide a means that detects efficiency of the engine,and a means that detects combustion stability of the engine, and to detect the HC discharged quantity until activation of a catalyst at the time of engine start based on efficiency of the engine and combustion stability of the engine.
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公开(公告)号：EP3150835A1
公开(公告)日：2017-04-05
申请号：EP15799458.3
申请日：2015-05-07
发明人： NAKAGAWA Shinji , HORI Toshio , NUMATA Akihito
IPC分类号： F02D45/00
摘要： The purpose of the present invention is to detect deterioration of dead time characteristics of an air-fuel ratio sensor with high accuracy without causing running performance and exhaust performance to worsen. The present invention provides a control device for an engine, characterized by being equipped with: a means for detecting an air-fuel ratio; a means for changing the air-fuel ratio in a predetermined cycle; and a means for sending a notification of an abnormality in the air-fuel ratio detection means or causing at least a portion of the engine control to run in a fail-safe mode when the amplitude of an output signal of the air-fuel ratio detection means at a predetermined frequency is within a predetermined range and the required time or required angle to arrive at a predetermined value of the output signal of the air-fuel ratio detection means from a reference position or reference time point of an engine-related parameter is equal to a predetermined value or higher.
摘要翻译： 本发明的目的是以高精度检测空燃比传感器的死区时间特性的劣化，而不会使运行性能和排气性能恶化。 本发明提供一种用于发动机的控制装置，其特征在于包括：用于检测空燃比的装置; 用于在预定循环中改变空燃比的装置; 以及用于在空燃比检测装置中发送异常通知或使至少一部分发动机控制运行在故障安全模式的装置，当空燃比检测装置的输出信号的幅度 预定频率的装置在预定范围内，并且从发动机相关参数的基准位置或参考时间点到达空燃比检测装置的输出信号的预定值的所需时间或所需角度是 等于或大于预定值。
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公开(公告)号：EP2578863A1
公开(公告)日：2013-04-10
申请号：EP11789910.4
申请日：2011-06-03
发明人： NAKAGAWA Shinji , NUMATA Akihito , FUKUCHI Eisaku
CPC分类号： F02D41/00 , F02D41/0085 , F02D41/1441 , F02D41/1454 , F02D41/1495 , F02D41/22 , F02D2041/1432 , F02D2041/288 , F02M26/00
摘要： Variations in the air-fuel ratio among cylinders are specified as one cause of deterioration in exhaust emissions however the size of the variations in the air-fuel ratio among cylinders detected by the catalyst upstream sensor does not always match the margin of deterioration in exhaust emissions. The objective of the present invention is to detect the deterioration in the exhaust emissions caused due to variations in the air-fuel ratio among cylinders. Deterioration in exhaust emissions due to variations in the air-fuel ratio among engine cylinders is detected based on a means to calculate a specified frequency component A of the catalyst upstream sensor signal; a means to calculate a specified frequency component B of the catalyst downstream sensor signal; and the frequency component A and the frequency component B.
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