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公开(公告)号：EP1074834B1
公开(公告)日：2012-05-23
申请号：EP00109523.1
申请日：1998-03-23
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relate to an apparatus for detecting the concentration of exhaust gases comprising: an NOx occlusion catalyst disposed in an exhaust pipe of an internal combustion engine, an NOx sensor mounted downstream of said NOx occlusion catalyst in the exhaust pipe to detect the NOx concentration in the exhaust gases, driving condition setting means for transiently providing a rich air-to-fuel ratio for cleaning NOx occluded in said NOx occlusion catalyst, and means for detecting a state of deterioration of said NOx occlusion catalyst based on changes in a detection output of said NOx sensor before and after setting the rich air-to-fuel ratio.
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公开(公告)号：EP1074833A1
公开(公告)日：2001-02-07
申请号：EP00109522.3
申请日：1998-03-23
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417 , F01N11/00
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relate to an apparatus for detecting the concentration of exhaust gases comprising: an NOx occlusion catalyst disposed in an exhaust pipe of an internal combustion engine, an NOx sensor mounted downstream of said NOx occlusion catalyst in the exhaust pipe to detect the NOx concentration in the exhaust gases, driving condition setting means for transiently providing a rich air-to-fuel ratio for cleaning NOx occluded in said NOx occlusion catalyst, and means for detecting a state of deterioration of said NOx occlusion catalyst based on changes in a detection output of said NOx sensor before and after setting the rich air-to-fuel ratio.
摘要翻译： 排气浓度检测装置技术领域本发明涉及检测排气浓度的装置，其包括：设置在内燃机的排气管中的NOx吸留催化剂，安装在排气管中的NOx吸留催化剂下游的NOx传感器，用于检测NOx浓度 用于暂时提供用于净化在所述NOx吸留催化剂中吸留的NOx的浓空燃比的驱动条件设定装置以及用于基于检测输出的变化来检测所述NOx吸留催化剂的劣化状态的装置 在设定浓空燃比之前和之后设定所述NOx传感器。
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公开(公告)号：EP1077375A1
公开(公告)日：2001-02-21
申请号：EP00109915.9
申请日：1998-03-23
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relates to a method and apparatus for detecting the concentration of a specific gas in an engine exhaust gas, wherein the amount of moisture in the exhaust gas from driving conditions of the engine is estimated, a gas concentration detection signal output by a gas sensor is corrected responsive to an estimated amount of moisture, and the effect of the amount of moisture in said exhaust gas from the detected value of the gas concentration is removed or reduced.
摘要翻译： 本发明涉及用于检测发动机排气中的特定气体的浓度的方法和设备，其中估计来自发动机的驱动条件的排气中的水分量，由气体输出的气体浓度检测信号 响应于估计的水分量来校正传感器，并且从气体浓度的检测值中除去或减少所述排气中水分量的影响。
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公开(公告)号：EP1077375B1
公开(公告)日：2012-06-20
申请号：EP00109915.9
申请日：1998-03-23
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relate to an apparatus for detecting the concentration of exhaust gases comprising: an NOx occlusion catalyst disposed in an exhaust pipe of an internal combustion engine, an NOx sensor mounted downstream of said NOx occlusion catalyst in the exhaust pipe to detect the NOx concentration in the exhaust gases, driving condition setting means for transiently providing a rich air-to-fuel ratio for cleaning NOx occluded in said NOx occlusion catalyst, and means for detecting a state of deterioration of said NOx occlusion catalyst based on changes in a detection output of said NOx sensor before and after setting the rich air-to-fuel ratio.
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5.发明公开Method and apparatus for measuring NOx gas concentration 失效Verfahren und Vorrichtung zur Messung der Stickstoffoxidkonzentration
公开(公告)号：EP1074834A1
公开(公告)日：2001-02-07
申请号：EP00109523.1
申请日：1998-03-23
发明人： Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
IPC分类号： G01N27/419 , G01N27/417
CPC分类号： F01N3/2066 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F02D41/146 , F02D41/2474 , F02D41/28 , G01N27/4175 , G01N27/419 , G01N33/0037 , Y02A50/2344 , Y02A50/245 , Y02T10/24 , Y02T10/47
摘要： The present invention relates to a method and apparatus for detecting the concentration of exhaust gas using a gas sensor which detects the concentration of a specific component in a gas discharged from an internal combustion engine. A zero point of a detection output of the gas sensor specifying the zero concentration of said specific component is calibrated, based on a detection output of the gas sensor in the atmosphere, and the concentration of said specific component is deleted based on the calibrated detection output.
摘要翻译： 本发明涉及一种用于检测废气浓度的装置，包括：设置在内燃机的排气管中的NOx吸留催化剂，安装在排气管中的所述NOx吸留催化剂下游的NOx传感器，以检测NOx浓度 在废气中，驱动条件设定装置，用于瞬时提供用于清除所述NOx吸留催化剂中所含的NOx的浓空气燃料比，以及用于根据检测输出的变化来检测所述NOx吸留催化剂的劣化状态的装置 的NOx传感器在设定浓空燃比之前和之后。
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