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1. 发明授权

EP1113155B1 An exhaust purification device of an engine 失效
公开(公告)号：EP1113155B1
公开(公告)日：2003-11-19
申请号：EP01107377.2
申请日：1996-03-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Asanuma, Takamitsu , Kihara, Tetsuro , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F02D41/02 , F01N11/00 , B01D53/94
CPC分类号： F02D41/0235 , B01D53/9495 , F01N3/0842 , F01N11/007 , F01N2550/03 , F01N2900/0422 , F02D41/0275 , F02D2200/0806 , F02D2200/0808 , Y02T10/47

2. 发明授权

EP0733786B1 An exhaust purification device of an engine 失效
标题翻译：发动机的排气净化装置
公开(公告)号：EP0733786B1
公开(公告)日：2003-05-21
申请号：EP96104510.1
申请日：1996-03-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Asanuma, Takamitsu , Kihara, Tetsuro , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F01N3/08 , F01N9/00
CPC分类号： F02D41/0235 , B01D53/9495 , F01N3/0842 , F01N11/007 , F01N2550/03 , F01N2900/0422 , F02D41/0275 , F02D2200/0806 , F02D2200/0808 , Y02T10/47

3. 发明授权

EP0735250B1 Device for detecting deterioration of NOx absorbent 失效
标题翻译：用于诊断NOx吸收剂的劣化的装置
公开(公告)号：EP0735250B1
公开(公告)日：2002-11-13
申请号：EP96104896.4
申请日：1996-03-27
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Takeshima, Shinichi , Kihara, Tetsuro , Asanuma, Takamitsu , Tanaka, Toshiaki , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F01N3/08 , F01N9/00
CPC分类号： F01N3/0842 , B01D53/9495 , F01N11/007 , F01N2550/03 , F01N2570/14 , F02D41/0275 , F02D41/1441 , F02D2200/0806 , F02D2200/0808 , F02D2200/0814 , F02D2200/0816 , Y02A50/2344 , Y02T10/47
摘要： A device for detecting deterioration of a NOx absorbent arranged in the exhaust passage of an engine. An O2 sensor generating a current proportional to the air-fuel ratio is arranged in the exhaust passage downstream of the NOx absorbent. When the amount of NOx absorbed in the NOx absorbent is almost zero or after the amount of NOx absorbed in the NOx absorbent is made almost zero, the air-fuel ratio of the air-fuel mixture is changed from lean to rich, and the amount of oxygen stored in the NOx absorbent is detected from the output signal of the O2 sensor at this time. Further, the NOx absorbing capability is found by using this detected oxygen amount.

4. 发明公开

EP0585900A1 An exhaust gas purification device of an engine 失效
标题翻译： Gerätzur Entgiftung von Auspuffgasen eines Motors。
公开(公告)号：EP0585900A1
公开(公告)日：1994-03-09
申请号：EP93113980.2
申请日：1993-09-01
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Katoh, Kenji , Iguchi, Satoshi , Kihara, Tetsuro , Gotoh, Masato , Takesima, Shinichi , Asanuma, Takamitsu , Murakami, Fumitada
IPC分类号： F02D41/14
CPC分类号： F01N3/0842 , F01N3/0871 , F01N9/00 , F02D41/0275 , F02D41/1475 , F02D41/1487 , Y02T10/47
摘要： An engine comprising an exhaust passage having therein a NO x absorbent which absorbs the NO x when the air-fuel ratio of the exhaust gas flowing into the NO x absorbent is lean and releases the absorbed NO x when the air-fuel ratio of the exhaust gas flowing into the NO x absorbent becomes the stoichiometric air-fuel ratio or rich. When the air-fuel ratio of the air-fuel mixture should be changed over from lean to the stoichiometric air-fuel ratio, the air-fuel ratio of the air-fuel mixture is temporarily made rich and is then made the stoichiometric air-fuel ratio.
摘要翻译：一种发动机，其特征在于，具有排气通路，在所述排气通路中具有NOx吸收剂，所述NOx吸收剂在流入所述NOx吸收剂的排气的空燃比为稀的时吸收NOx，并且当所述排气流入所述NOx吸收剂的空燃比时， NOx吸收剂成为理论空燃比或浓度。当空气燃料混合物的空燃比应当从稀薄变为理论空燃比时，空气 - 燃料混合物的空燃比暂时变浓，然后制成化学计量空气燃料比。

5. 发明公开

EP1146208A3 Device for detecting deterioration of NOx absorbent 失效
标题翻译： Vorrichtung zum Feststellen der Verschlechterung eines NOx吸收剂
公开(公告)号：EP1146208A3
公开(公告)日：2003-10-15
申请号：EP01114502.6
申请日：1996-03-27
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Takeshima, Shinichi , Kihara, Tetsuro , Asanuma, Takamitsu , Tanaka, Toshiaki , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F01N11/00 , F02D41/02 , F01N3/08
CPC分类号： F01N3/0842 , B01D53/9495 , F01N11/007 , F01N2550/03 , F01N2570/14 , F02D41/0275 , F02D41/1441 , F02D2200/0806 , F02D2200/0808 , F02D2200/0814 , F02D2200/0816 , Y02A50/2344 , Y02T10/47
摘要： A device for detecting deterioration of a NO x absorbent arranged in the exhaust passage of an engine. An O 2 sensor generating a current proportional to the air-fuel ratio is arranged in the exhaust passage downstream of the NO x absorbent. When the amount of NO x absorbed in the NO x absorbent is almost zero or after the amount of NO x absorbed in the NO x absorbent is made almost zero, the air-fuel ratio of the air-fuel mixture is changed from lean to rich, and the amount of oxygen stored in the NO x absorbent is detected from the output signal of the O 2 sensor at this time. Further, the NO x absorbing capability is found by using this detected oxygen amount.
摘要翻译：一种用于检测布置在发动机的排气通道中的NOx吸收剂的劣化的装置。产生与空燃比成比例的电流的O 2传感器设置在NOx吸收剂下游的排气通路中。当NOx吸收剂中吸收的NOx的量几乎为零时，或在NOx吸收剂中吸收的NOx的量几乎为零之后，空气 - 燃料混合物的空燃比从浓度变为富，此时从O 2传感器的输出信号检测存储在NOx吸收剂中的氧。此外，通过使用该检测到的氧量来发现NOx吸收能力。

6. 发明公开

EP1113156A3 An exhaust purification device of an engine 失效
标题翻译：发动机的排气净化装置
公开(公告)号：EP1113156A3
公开(公告)日：2002-03-06
申请号：EP01107383.0
申请日：1996-03-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Asanuma, Takamitsu , Kihara, Tetsuro , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F01N11/00 , F02D41/02 , B01D53/94
CPC分类号： F02D41/0235 , B01D53/9495 , F01N3/0842 , F01N11/007 , F01N2550/03 , F01N2900/0422 , F02D41/0275 , F02D2200/0806 , F02D2200/0808 , Y02T10/47
摘要： An exhaust purification device of an engine having an exhaust passage, comprising: a NOx absorbent (18) arranged in the exhaust passage (17); air-fuel ratio control means (20) for controlling the air-fuel ratio of the exhaust gas flowing into the NOx absorbent to temporarily change the air-fuel ratio of the exhaust gas flowing into the NOx absorbent from lean to rich at certain time intervals to release NOx from the NOx absorbent; deterioration detecting means (22) for detecting the degree of deterioration of the NOx absorbent; wherein the relationship between the degree of deterioration of the NOx absorbent and a rich time period during which the air-fuel ratio of the exhaust gas flowing into the NOx absorbent is made rich is stored in advance, and said air-fuel ratio control means controls said rich time period on the basis of said stored relationship to shorten said rich time period as the degree of deterioration of the NOx absorbent becomes higher.
摘要翻译： 1。一种具有排气通路的发动机的排气净化装置，其特征在于，具备：排气通路（17）内配置的NOx吸收剂（18）空气 - 燃料比控制装置（20），其用于控制流入到所述NOx吸收剂中的排气的空燃比，以使流入所述NOx吸收剂的排气的空燃比从稀到浓临时地以一定的时间间隔变化从NO x吸收剂中释放NO x; 劣化检测装置（22），用于检测NOx吸收剂的劣化程度; 其中，所述空燃比控制装置预先存储所述NOx吸收剂的劣化程度与使流入所述NOx吸收剂的排气的空燃比变浓的浓时间之间的关系，并且所述空燃比控制装置控制根据所述储存的关系，所述富时间段随着NOx吸收剂的劣化程度变高而缩短所述富时间段。

7. 发明公开

EP1113155A2 An exhaust purification device of an engine 失效
标题翻译：发动机的排气净化装置
公开(公告)号：EP1113155A2
公开(公告)日：2001-07-04
申请号：EP01107377.2
申请日：1996-03-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Asanuma, Takamitsu , Kihara, Tetsuro , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F01N11/00 , F02D41/02
CPC分类号： F02D41/0235 , B01D53/9495 , F01N3/0842 , F01N11/007 , F01N2550/03 , F01N2900/0422 , F02D41/0275 , F02D2200/0806 , F02D2200/0808 , Y02T10/47
摘要： An exhaust purification device of an engine having an exhaust passage, comprising: a NOx absorbent (18) arranged in the exhaust passage (17); air-fuel ratio control means (20) for controlling the air-fuel ratio of the exhaust gas flowing into the NOx absorbent to temporarily change the air-fuel ratio of the exhaust gas flowing into the NOx absorbent from lean to rich at certain time intervals to release NOx from the NOx absorbent; deterioration detecting means (22) for detecting the degree of deterioration of the NOx absorbent; wherein said NOx releasing control means controls at least one of a time period at which the air-fuel ratio of the exhaust gas flowing into the NOx absorbent is changed from lean to rich and a rich time period during which the air-fuel ratio of the exhaust gas flowing into the NOx absorbent is made rich to make one of said time periods shorter as the degree of deterioration of the NOx absorbent becomes higher, wherein said air-fuel ratio control means comprises a first air-fuel ratio control means for changing the air-fuel ratio of the exhaust gas flowing into the NOx absorbent temporarily from lean to rich at said cycle, controlled by said NOx releasing control means just so as to cause the release of NOx from the NOx absorbent and second air-fuel ratio control means for changing the air-fuel ratio of the exhaust gas flowing into the NOx absorbent temporarily from lean to rich so as to cause the NOx to be released from the NOx absorbent and to detect the degree of deterioration of the NOx absorbent by said deterioration degree detecting means.
摘要翻译： 1。一种具有排气通路的发动机的排气净化装置，其特征在于，具备：排气通路（17）内配置的NOx吸收剂（18）空气 - 燃料比控制装置（20），其用于控制流入到所述NOx吸收剂中的排气的空燃比，以使流入所述NOx吸收剂的排气的空燃比从稀到浓临时地以一定的时间间隔变化从NO x吸收剂中释放NO x; 劣化检测装置（22），用于检测NOx吸收剂的劣化程度; 其中，所述NO X释放控制装置控制流入所述NO X吸收剂的废气的空燃比从稀到浓的时间段和其中所述空燃比的空燃比随着NOx吸收剂的劣化程度变高，流入NOx吸收剂的废气变浓，使其中的一个时间段变短，其中，所述空燃比控制装置包括第一空燃比控制装置，在所述循环中，由所述NOx释放控制装置控制的流入所述NOx吸收剂的排气的空燃比从所述循环从稀到浓暂时从所述NOx吸收剂和第二空燃比控制装置释放NOx 用于将流入NOx吸收剂的排气的空燃比暂时从稀到浓变化，以使NOx从NOx吸收剂中释放并检测由所述劣化程度检测装置吸收NOx。

8. 发明公开

EP0735250A2 Device for detecting deterioration of NOx absorbent 失效
标题翻译：用于诊断NOx吸收剂的劣化的装置
公开(公告)号：EP0735250A2
公开(公告)日：1996-10-02
申请号：EP96104896.4
申请日：1996-03-27
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Takeshima, Shinichi , Kihara, Tetsuro , Asanuma, Takamitsu , Tanaka, Toshiaki , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F01N3/08 , F01N7/00
CPC分类号： F01N3/0842 , B01D53/9495 , F01N11/007 , F01N2550/03 , F01N2570/14 , F02D41/0275 , F02D41/1441 , F02D2200/0806 , F02D2200/0808 , F02D2200/0814 , F02D2200/0816 , Y02A50/2344 , Y02T10/47
摘要： A device for detecting deterioration of a NO x absorbent arranged in the exhaust passage of an engine. An O 2 sensor generating a current proportional to the air-fuel ratio is arranged in the exhaust passage downstream of the NO x absorbent. When the amount of NO x absorbed in the NO x absorbent is almost zero or after the amount of NO x absorbed in the NO x absorbent is made almost zero, the air-fuel ratio of the air-fuel mixture is changed from lean to rich, and the amount of oxygen stored in the NO x absorbent is detected from the output signal of the O 2 sensor at this time. Further, the NO x absorbing capability is found by using this detected oxygen amount.

9. 发明授权

EP1113156B1 An exhaust purification device of an engine 失效
公开(公告)号：EP1113156B1
公开(公告)日：2003-11-19
申请号：EP01107383.0
申请日：1996-03-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Asanuma, Takamitsu , Kihara, Tetsuro , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F01N11/00 , F02D41/02 , B01D53/94
CPC分类号： F02D41/0235 , B01D53/9495 , F01N3/0842 , F01N11/007 , F01N2550/03 , F01N2900/0422 , F02D41/0275 , F02D2200/0806 , F02D2200/0808 , Y02T10/47

10. 发明公开

EP1113156A2 An exhaust purification device of an engine 失效
标题翻译：内燃发动机的排气净化装置
公开(公告)号：EP1113156A2
公开(公告)日：2001-07-04
申请号：EP01107383.0
申请日：1996-03-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Asanuma, Takamitsu , Kihara, Tetsuro , Katoh, Kenji , Iguchi, Satoshi
IPC分类号： F01N11/00 , F02D41/02
CPC分类号： F02D41/0235 , B01D53/9495 , F01N3/0842 , F01N11/007 , F01N2550/03 , F01N2900/0422 , F02D41/0275 , F02D2200/0806 , F02D2200/0808 , Y02T10/47
摘要： An exhaust purification device of an engine having an exhaust passage, comprising: a NOx absorbent arranged in the exhaust passage; air-fuel ratio control means for controlling the air-fuel ratio of the exhaust gas flowing into the NOx absorbent to temporarily change the air-fuel ratio of the exhaust gas flowing into the NOx absorbent from lean to rich at certain time intervals to release NOx from the NOx absorbent; deterioration detecting means for detecting the degree of deterioration of the NOx absorbent; wherein the relationship between the degree of deterioration of the NOx absorbent and a rich time period during which the air-fuel ratio of the exhaust gas flowing into the NOx absorbent is made rich is stored in advance, and said air-fuel ratio control means controls said rich time period on the basis of said stored relationship to shorten said rich time period as the degree of deterioration of the NOx absorbent becomes higher.

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