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1. 发明授权

US08534046B2 Apparatus and method for diagnosing catalyst deterioration 有权
标题翻译：用于诊断催化剂劣化的装置和方法
公开(公告)号：US08534046B2
公开(公告)日：2013-09-17
申请号：US12812350
申请日：2009-02-27
申请人： Hiroshi Miyamoto , Toru Kidokoro , Hiroshi Sawada , Yasushi Iwazaki , Koichi Kimura , Koichi Kitaura
发明人： Hiroshi Miyamoto , Toru Kidokoro , Hiroshi Sawada , Yasushi Iwazaki , Koichi Kimura , Koichi Kitaura
IPC分类号： F01N3/00
CPC分类号： F01N11/007 , F01N11/00 , F02D41/0235 , F02D41/1441 , F02D2200/0816 , Y02T10/47
摘要： A catalyst deterioration diagnosing apparatus is provided with means for performing stoichiometric feedback control on the air-fuel ratio based on at least output from an upstream air-fuel ratio sensor provided upstream of a catalyst, means for measuring the oxygen storage capacity of the catalyst, and means for correcting the measured value of the oxygen storage capacity based on at least the output behavior of a downstream air-fuel ratio sensor provided downstream of the catalyst during the stoichiometric feedback control. The measured value of the oxygen storage capacity is corrected using the output behavior of the downstream air-fuel ratio sensor during stoichiometric feedback control. The diagnostic is performed after eliminating the effects from sulfur by correcting the measured value to a value corresponding to when low sulfur fuel is used, which makes it possible to prevent an erroneous diagnosis from being made.
摘要翻译：催化剂劣化诊断装置具有至少基于设置在催化剂上游的上游空燃比传感器的输出而对空燃比进行化学计量反馈控制的装置，用于测量催化剂的储氧能力的装置，以及用于在化学计量反馈控制期间至少基于设置在催化剂下游的下游空燃比传感器的输出特性来校正储氧能力的测量值的装置。在化学计量反馈控制中，使用下游空燃比传感器的输出特性来校正储氧容量的测量值。在通过将测量值校正为与使用低硫燃料时相对应的值来消除硫的影响之后执行诊断，这使得可以防止进行错误的诊断。

2. 发明申请

US20100307135A1 APPARATUS AND METHOD FOR DIAGNOSING CATALYST DETERIORATION 有权
标题翻译：用于诊断催化剂测定的装置和方法
公开(公告)号：US20100307135A1
公开(公告)日：2010-12-09
申请号：US12812350
申请日：2009-02-27
申请人： Hiroshi Miyamoto , Toru Kidokoro , Hiroshi Sawada , Yasushi Iwazaki , Koichi Kimura , Koichi Kitaura
发明人： Hiroshi Miyamoto , Toru Kidokoro , Hiroshi Sawada , Yasushi Iwazaki , Koichi Kimura , Koichi Kitaura
IPC分类号： F01N11/00
CPC分类号： F01N11/007 , F01N11/00 , F02D41/0235 , F02D41/1441 , F02D2200/0816 , Y02T10/47
摘要： A catalyst deterioration diagnosing apparatus is provided with means for performing stoichiometric feedback control on the air-fuel ratio based on at least output from an upstream air-fuel ratio sensor provided upstream of a catalyst, means for measuring the oxygen storage capacity of the catalyst, and means for correcting the measured value of the oxygen storage capacity based on at least the output behavior of a downstream air-fuel ratio sensor provided downstream of the catalyst during the stoichiometric feedback control. The measured value of the oxygen storage capacity is corrected using the output behavior of the downstream air-fuel ratio sensor during stoichiometric feedback control. The diagnostic is performed after eliminating the effects from sulfur by correcting the measured value to a value corresponding to when low sulfur fuel is used, which makes it possible to prevent an erroneous diagnosis from being made.
摘要翻译：催化剂劣化诊断装置具有至少基于设置在催化剂上游的上游空燃比传感器的输出而对空燃比进行化学计量反馈控制的装置，用于测量催化剂的储氧能力的装置，以及用于在化学计量反馈控制期间至少基于设置在催化剂下游的下游空燃比传感器的输出特性来校正储氧能力的测量值的装置。在化学计量反馈控制中，使用下游空燃比传感器的输出特性来校正储氧容量的测量值。在通过将测量值校正为与使用低硫燃料时相对应的值来消除硫的影响之后执行诊断，这使得可以防止进行错误的诊断。

3. 发明申请

US20100083635A1 CATALYST MONITORING SYSTEM AND CATALYST MONITORING METHOD 审中-公开
标题翻译：催化监测系统和催化监测方法
公开(公告)号：US20100083635A1
公开(公告)日：2010-04-08
申请号：US12530031
申请日：2008-03-05
申请人： Koichi Kitaura , Toru Kidokoro , Hiroshi Sawada , Yasushi Iwazaki , Koichi Kimura
发明人： Koichi Kitaura , Toru Kidokoro , Hiroshi Sawada , Yasushi Iwazaki , Koichi Kimura
IPC分类号： F01N11/00 , F02D43/00
CPC分类号： F01N11/007 , F01N3/10 , F01N2550/02 , F01N2560/023 , Y02T10/22 , Y02T10/47
摘要： The concentration of a portion of components in the hydrocarbon in exhaust gas flowing into a catalyst is detected or estimated, and the concentration of the portion of components in the hydrocarbon in the exhaust gas flowing out of the catalyst is detected. On the basis of the concentrations of the portion of components in the hydrocarbon flowing into the catalyst and the concentration of the portion of components in the hydrocarbon flowing out of the catalyst, it is determined whether or not the catalyst has been deteriorated.
摘要翻译：检测或估计流入催化剂的废气中的烃中的一部分成分的浓度，并且检测出从催化剂流出的废气中的烃中部分成分的浓度。基于流入催化剂的烃中的组分部分浓度和流出催化剂的烃中的组分部分的浓度，确定催化剂是否劣化。

4. 发明授权

US08650943B2 Apparatus for determining an air-fuel ratio imbalance among cylinders of an internal combustion engine 有权
标题翻译：用于确定内燃机的气缸之间的空燃比失衡的装置
公开(公告)号：US08650943B2
公开(公告)日：2014-02-18
申请号：US13393148
申请日：2009-08-28
申请人： Koichi Kimura , Hiroshi Sawada , Toru Kidokoro , Yasushi Iwazaki
发明人： Koichi Kimura , Hiroshi Sawada , Toru Kidokoro , Yasushi Iwazaki
IPC分类号： G01M15/10
CPC分类号： F02D41/0085 , F02B75/041 , F02B2275/16 , F02D15/04 , F02D41/1441 , F02D41/1456 , Y02T10/123
摘要： An air-fuel ratio imbalance among cylinders determining apparatus according to the present invention is applied to a multi-cylinder internal combustion engine in which a compression ratio is variable. The determining apparatus obtains, using at least an output value of an upstream air-fuel ratio sensor disposed for a catalyst, an “imbalance determining parameter” which becomes larger as a degree of an imbalance among “individual cylinder air-fuel ratios” becomes larger, each of the individual cylinder air-fuel ratios being an air-fuel ratio of a mixture supplied to each of cylinders. Further, the determining apparatus determines that an air-fuel ratio imbalance state among cylinders is occurring, when the imbalance determining parameter is larger than a predetermined threshold. The determining apparatus changes the predetermined threshold in accordance with a mechanical compression ratio of the engine.
摘要翻译：根据本发明的气缸确定装置之间的空燃比不平衡被应用于压缩比可变的多气缸内燃机。判定装置使用至少设置于催化剂的上游空燃比传感器的输出值，获得“各个气缸空燃比”之间的不平衡度变大的“不平衡判定参数”变大每个单独的气缸空燃比是供应到每个气缸的混合物的空燃比。此外，当不平衡确定参数大于预定阈值时，确定装置确定气缸之间的空燃比不平衡状态正在发生。确定装置根据发动机的机械压缩比来改变预定阈值。

5. 发明申请

US20120160022A1 APPARATUS FOR DETERMINING AN AIR-FUEL RATIO IMBALANCE AMONG CYLINDERS OF AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于确定内燃机缸内空燃比不平衡的装置
公开(公告)号：US20120160022A1
公开(公告)日：2012-06-28
申请号：US13393148
申请日：2009-08-28
申请人： Koichi Kimura , Hiroshi Sawada , Toru Kidokoro , Yasushi Iwazaki
发明人： Koichi Kimura , Hiroshi Sawada , Toru Kidokoro , Yasushi Iwazaki
IPC分类号： G01M15/00
CPC分类号： F02D41/0085 , F02B75/041 , F02B2275/16 , F02D15/04 , F02D41/1441 , F02D41/1456 , Y02T10/123
摘要： An air-fuel ratio imbalance among cylinders determining apparatus according to the present invention is applied to a multi-cylinder internal combustion engine in which a compression ratio is variable. The determining apparatus obtains, using at least an output value of an upstream air-fuel ratio sensor disposed for a catalyst, an “imbalance determining parameter” which becomes larger as a degree of an imbalance among “individual cylinder air-fuel ratios” becomes larger, each of the individual cylinder air-fuel ratios being an air-fuel ratio of a mixture supplied to each of cylinders. Further, the determining apparatus determines that an air-fuel ratio imbalance state among cylinders is occurring, when the imbalance determining parameter is larger than a predetermined threshold. The determining apparatus changes the predetermined threshold in accordance with a mechanical compression ratio of the engine.
摘要翻译：根据本发明的气缸确定装置之间的空燃比不平衡被应用于压缩比可变的多气缸内燃机。判定装置使用至少设置于催化剂的上游空燃比传感器的输出值，获得“各个气缸空燃比”之间的不平衡度变大的“不平衡判定参数”变大每个单独的气缸空燃比是供应到每个气缸的混合物的空燃比。此外，当不平衡确定参数大于预定阈值时，确定装置确定气缸之间的空燃比不平衡状态正在发生。确定装置根据发动机的机械压缩比来改变预定阈值。

6. 发明申请

US20080173008A1 Catalyst deterioration detecting system and catalyst deterioration detecting method of internal combustion engine 审中-公开
标题翻译：催化剂劣化检测系统和内燃机催化剂劣化检测方法
公开(公告)号：US20080173008A1
公开(公告)日：2008-07-24
申请号：US12007564
申请日：2008-01-11
申请人： Toru Kidokoro , Koichi Kimura , Koichi Kitaura
发明人： Toru Kidokoro , Koichi Kimura , Koichi Kitaura
IPC分类号： F01N3/00 , F01N3/18 , F01N3/08
CPC分类号： F01N11/007 , F01N11/002 , F01N2550/02 , Y02T10/47
摘要： A catalyst deterioration detecting system of an internal combustion engine includes a measuring unit that measures the oxygen storage capacity of a catalyst, a detector that detects or estimates the temperature of the catalyst, and a detector that detects poisoning of the catalyst based on the relationship between a change in the catalyst temperature and a change in the oxygen storage capacity corresponding to the change in the catalyst temperature. The change in the oxygen storage capacity corresponding to the change in the catalyst temperature varies depending on the presence or absence of poisoning of the catalyst. Thus, the catalyst deterioration detecting system is able to favorably detect poisoning of the catalyst by utilizing this relationship, and distinguish temporary deterioration due to catalyst poisoning from permanent deterioration. A method of detecting deterioration of the catalyst is also provided.
摘要翻译：内燃机的催化剂劣化检测系统包括测量催化剂的储氧能力的测量单元，检测或估计催化剂温度的检测器，以及检测催化剂中毒的检测器，催化剂温度的变化和对应于催化剂温度变化的储氧能力的变化。对应于催化剂温度变化的储氧容量的变化取决于催化剂是否存在中毒。因此，催化剂劣化检测系统能够通过利用这种关系有利地检测催化剂的中毒，并且将由于催化剂中毒引起的暂时劣化区分为永久性劣化。还提供了一种检测催化剂劣化的方法。

7. 发明申请

US20090145109A1 Catalyst degradation diagnosis device and diagnosis method for internal combustion engine 审中-公开
标题翻译：催化剂降解诊断装置及内燃机诊断方法
公开(公告)号：US20090145109A1
公开(公告)日：2009-06-11
申请号：US12314053
申请日：2008-12-03
申请人： Toru Kidokoro , Koichi Kimura , Koichi Kitaura
发明人： Toru Kidokoro , Koichi Kimura , Koichi Kitaura
IPC分类号： F01N11/00
CPC分类号： F01N11/007 , F01N3/0864 , F01N3/101 , F01N13/009 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2900/102 , F01N2900/1624 , Y02T10/22 , Y02T10/47
摘要： The oxygen storage capacity preceding a previous oxygen storage capacity and the previous oxygen storage capacity of each of an upstream catalyst and a downstream catalyst are measured, and a present oxygen storage capacity of the downstream catalyst is measured. Then, sulfur poisoning of the upstream catalyst and the downstream catalyst is detected on the basis of an oxygen storage capacity change amount of each of the upstream catalyst and the downstream catalyst from the oxygen storage capacity preceding the previous one to the previous oxygen storage capacity, and the oxygen storage capacity change amount of the downstream catalyst from the previous oxygen storage capacity to the present oxygen storage capacity. The presence/absence of the sulfur poisoning can be accurately detected by utilizing the difference between the manners of sulfur poisoning of the two catalysts.
摘要翻译：测量先前的氧气存储容量之前的储氧能力和上游催化剂和下游催化剂的先前的氧气存储容量，并测量下游催化剂的当前储氧能力。然后，基于上游催化剂和下游催化剂的储氧容量变化量，从前一次的储氧容量到先前的储氧容量，检测上游催化剂和下游催化剂的硫中毒，和下游催化剂的储氧能力变化量从先前的储氧能力到当前的储氧容量。通过利用两种催化剂的硫中毒方式之间的差异能够准确地检测是否存在硫中毒。

8. 发明授权

US08818693B2 Engine system control device 有权
标题翻译：发动机系统控制装置
公开(公告)号：US08818693B2
公开(公告)日：2014-08-26
申请号：US13132451
申请日：2008-12-03
申请人： Koichi Kimura , Hiroshi Sawada , Toru Kidokoro
发明人： Koichi Kimura , Hiroshi Sawada , Toru Kidokoro
IPC分类号： F02B75/04 , F02D41/02 , F02D15/00 , F02D15/04 , F02D13/00 , F02D41/14 , F02D41/22 , F01N11/00
CPC分类号： F02D41/221 , F01N11/00 , F01N2550/00 , F02D15/00 , F02D15/04 , F02D41/0235 , F02D41/1446 , F02D41/1488 , F02D41/1495 , F02D41/222 , F02D2041/227 , Y02T10/40
摘要： The present invention provides an engine system control device to be applied to an engine system provided with an engine having a variable compression ratio mechanism capable of changing a compression ratio. In the case where generation of failure in a compression ratio control system is detected, determination of a state of a member placed in an intake and exhaust system of the engine is inhibited.
摘要翻译：本发明提供一种发动机系统控制装置，其应用于具有能够改变压缩比的可变压缩比机构的发动机的发动机系统。在检测到压缩比控制系统发生故障的情况下，禁止对放置在发动机的进气和排气系统中的部件的状态的确定。

9. 发明申请

US20110290217A1 ENGINE SYSTEM CONTROL DEVICE 有权
标题翻译：发动机系统控制装置
公开(公告)号：US20110290217A1
公开(公告)日：2011-12-01
申请号：US13132451
申请日：2008-12-03
申请人： Koichi Kimura , Hiroshi Sawada , Toru Kidokoro
发明人： Koichi Kimura , Hiroshi Sawada , Toru Kidokoro
IPC分类号： F02B75/04
CPC分类号： F02D41/221 , F01N11/00 , F01N2550/00 , F02D15/00 , F02D15/04 , F02D41/0235 , F02D41/1446 , F02D41/1488 , F02D41/1495 , F02D41/222 , F02D2041/227 , Y02T10/40
摘要： The present invention provides an engine system control device to be applied to an engine system provided with an engine having a variable compression ratio mechanism capable of changing a compression ratio. In the case where generation of failure in a compression ratio control system is detected, determination of a state of a member placed in an intake and exhaust system of the engine is inhibited.
摘要翻译：本发明提供一种发动机系统控制装置，其应用于具有能够改变压缩比的可变压缩比机构的发动机的发动机系统。在检测到压缩比控制系统发生故障的情况下，禁止对放置在发动机的进气和排气系统中的部件的状态的确定。

10. 发明授权

US09212583B2 Air-fuel ratio control device for internal combustion engine 有权
标题翻译：内燃机空燃比控制装置
公开(公告)号：US09212583B2
公开(公告)日：2015-12-15
申请号：US14117440
申请日：2011-05-16
申请人： Takahiko Fujiwara , Koichi Kimura , Makoto Tomimatsu , Junichi Suzuki
发明人： Takahiko Fujiwara , Koichi Kimura , Makoto Tomimatsu , Junichi Suzuki
IPC分类号： F01N3/00 , F01N3/10 , F02D41/02 , F02D41/14 , F02D41/18
CPC分类号： F01N3/10 , F01N3/101 , F02D41/0295 , F02D41/10 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D41/18 , F02D41/187 , F02D2041/1412 , F02D2200/501 , Y02A50/2324 , Y02T10/22
摘要： An air-fuel ratio control apparatus for an internal combustion engine according to an embodiment of the invention (the present control apparatus) sets a target air-fuel ratio to a target rich air-fuel ratio when it is determined on the basis of the output value Voxs of a downstream air-fuel ratio sensor 67 that the oxygen adsorption amount of a catalyst 43 tends to be excessive, and sets the target air-fuel ratio to a target lean air-fuel ratio when it is determined on the basis of the output value Voxs that the oxygen adsorption amount of the catalyst 43 tends to be insufficient. Further, the present control apparatus determines whether or not an operation state in which a large amount of nitrogen oxide flows into the catalyst 43 is reached on the basis of “whether a predetermined condition is fulfilled”, and makes the target rich air-fuel ratio obtained when the predetermined condition is fulfilled less than the target rich air-fuel ratio obtained when the predetermined condition is not fulfilled. As a result, the concentration of a reducing agent inside the catalyst 43 can be increased before a large amount of NOx flows into the catalyst 43. Therefore, when a large amount of NOx flows into the catalyst 43, most of the NOx can be eliminated.
摘要翻译：根据本发明的实施例的内燃机的空燃比控制装置（本控制装置）在基于输出确定目标空燃比时，将目标空燃比设定为目标浓空燃比下游空燃比传感器67的值Voxs，催化剂43的氧吸附量倾向于过大，并且当基于该催化剂43确定目标空燃比时，将目标空燃比设定为目标稀燃比输出值Vox，催化剂43的氧吸附量趋于不足。此外，本控制装置基于“是否满足预定条件”来确定是否达到大量氮氧化物流入催化剂43的操作状态，并且使目标浓空燃比当预定条件满足小于当不满足预定条件时获得的目标浓空燃比时获得的。结果，在大量的NOx流入催化剂43之前，可以增加催化剂43内的还原剂的浓度。因此，当大量的NO x流入催化剂43时，可以消除大部分的NOx 。

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