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1. 发明授权

US08245569B2 Abnormality detection apparatus and abnormality detection method for air/fuel ratio sensor 有权
标题翻译：空气/燃料比传感器异常检测装置和异常检测方法
公开(公告)号：US08245569B2
公开(公告)日：2012-08-21
申请号：US12775872
申请日：2010-05-07
申请人： Takeo Ogiso , Keiko Okamoto , Yuya Yoshikawa , Hiroaki Tsuji
发明人： Takeo Ogiso , Keiko Okamoto , Yuya Yoshikawa , Hiroaki Tsuji
IPC分类号： G01M15/04
CPC分类号： G01M15/104
摘要： An abnormality detection apparatus includes: an air/fuel ratio control portion that controls of fluctuating the air/fuel ratio; a data acquisition portion that acquires a responsiveness parameter during change of output of the sensor between rich and lean peaks; and a abnormality determination portion that when the number of acquisitions reaches or exceeds a first set number, the presence/absence of sensor abnormality based on the average value and the criterion-value is determined, if the average value is not in a pending region; however, if the average value is in the pending region, the data acquisition is performed until the number of acquisitions performed during a large-amount-of-intake-air state of the engine reaches a second set number, and the presence/absence of sensor abnormality based on the average value of the data acquired by the second set number of acquisitions and the criterion-value is determined.
摘要翻译：异常检测装置包括：空气/燃料比控制部，其控制空燃比的波动; 数据采集部，其在丰富峰和所述贫峰之间的所述传感器的输出变化期间获取响应性参数; 以及异常判定部，当获取次数达到或超过第一设定数时，如果平均值不在未决区域，则确定基于平均值和标准值的传感器异常的存在/不存在; 然而，如果平均值处于未决区域，则执行数据采集，直到在发动机的大量进气 - 空气状态期间执行的获取次数达到第二设定数，并且存在/不存在确定基于由第二设定采集次数获得的数据的平均值和标准值的传感器异常。

2. 发明授权

US08245568B2 Abnormality detection apparatus and abnormality detection method for air/fuel ratio sensor 有权
标题翻译：空气/燃料比传感器异常检测装置和异常检测方法
公开(公告)号：US08245568B2
公开(公告)日：2012-08-21
申请号：US12765550
申请日：2010-04-22
申请人： Yuya Yoshikawa , Takeo Ogiso , Hiroaki Tsuji , Keiko Okamoto
发明人： Yuya Yoshikawa , Takeo Ogiso , Hiroaki Tsuji , Keiko Okamoto
IPC分类号： G01M15/04
CPC分类号： F02D41/1495 , F02D41/1456
摘要： An abnormality detection apparatus includes: an air/fuel ratio control portion that performs a control of fluctuating the air/fuel ratio; a data acquisition portion that acquires, as data for detecting abnormality, a responsiveness parameter while output of the air/fuel ratio sensor changes between rich and lean peaks during the control; an abnormality determination portion that determines presence/absence of abnormality of the sensor by using the data; and a distribution width determination portion that finds a distribution width of the data acquired by performing a plurality of acquisitions of the data, in an increase/decrease direction of the data. On the basis of comparison between the distribution width and an abnormality criterion value, the abnormality determination portion determines that the sensor has abnormality if the distribution width is less than the criterion value, and determines that the sensor does not have abnormality if the distribution width is not less than the criterion value.
摘要翻译：异常检测装置包括：空燃比控制部，其进行空燃比波动的控制; 数据获取部，其在控制期间，在空燃比传感器的输出在丰富峰与稀峰之间变化时，作为检测异常的数据，获取响应参数; 异常确定部，其通过使用所述数据来确定所述传感器的异常的存在/不存在; 以及分发宽度确定部分，其以数据的增减方向来找到通过执行数据的多次获取而获取的数据的分布宽度。在分配宽度与异常判定值的比较的基础上，如果分布宽度小于标准值，则异常判定部判定为传感器异常，如果分布宽度为不低于标准值。

3. 发明申请

US20100319667A1 ABNORMALITY DETECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR AIR/FUEL RATIO SENSOR 有权
标题翻译：空气/燃料比传感器的异常检测装置和异常检测方法
公开(公告)号：US20100319667A1
公开(公告)日：2010-12-23
申请号：US12765550
申请日：2010-04-22
申请人： Yuya YOSHIKAWA , Takeo Ogiso , Hiroaki Tsuji , Keiko Okamoto
发明人： Yuya YOSHIKAWA , Takeo Ogiso , Hiroaki Tsuji , Keiko Okamoto
IPC分类号： F02D41/00
CPC分类号： F02D41/1495 , F02D41/1456
摘要： An abnormality detection apparatus includes: an air/fuel ratio control portion that performs a control of fluctuating the air/fuel ratio; a data acquisition portion that acquires, as data for detecting abnormality, a responsiveness parameter while output of the air/fuel ratio sensor changes between rich and lean peaks during the control; an abnormality determination portion that determines presence/absence of abnormality of the sensor by using the data; and a distribution width determination portion that finds a distribution width of the data acquired by performing a plurality of acquisitions of the data, in an increase/decrease direction of the data. On the basis of comparison between the distribution width and an abnormality criterion value, the abnormality determination portion determines that the sensor has abnormality if the distribution width is less than the criterion value, and determines that the sensor does not have abnormality if the distribution width is not less than the criterion value.
摘要翻译：异常检测装置包括：空燃比控制部，其进行空燃比波动的控制; 数据获取部，其在控制期间，在空燃比传感器的输出在丰富峰与稀峰之间变化时，作为检测异常的数据，获取响应参数; 异常确定部，其通过使用所述数据来确定所述传感器的异常的存在/不存在; 以及分发宽度确定部分，其以数据的增减方向来找到通过执行数据的多次获取而获取的数据的分布宽度。在分配宽度与异常判定值的比较的基础上，如果分布宽度小于标准值，则异常判定部判定为传感器异常，如果分布宽度为不低于标准值。

4. 发明授权

US08485167B2 Abnormality detection apparatus and abnormality detection method for air/fuel ratio sensor 失效
标题翻译：空气/燃料比传感器异常检测装置和异常检测方法
公开(公告)号：US08485167B2
公开(公告)日：2013-07-16
申请号：US12785816
申请日：2010-05-24
申请人： Takeo Ogiso , Hiroaki Tsuji , Yuya Yoshikawa , Keiko Okamoto
发明人： Takeo Ogiso , Hiroaki Tsuji , Yuya Yoshikawa , Keiko Okamoto
IPC分类号： F02D41/00
CPC分类号： F02D41/222 , F02D41/1495 , Y02T10/40
摘要： An abnormality detection apparatus includes: an air/fuel ratio control portion that performs a control of fluctuating the air/fuel ratio between rich and lean states; a data acquisition portion that acquires, as data for detecting abnormality, a parameter that corresponds to responsiveness during change of output of the A/F sensor between rich and lean peaks during the control; a straight line setting portion that sets a straight line that represents a tendency of change of the parameter relative to change in intake air amount of the engine based on the data acquired by performing acquisition of the data a plurality of times; and an abnormality determination portion that determines the presence/absence of abnormality of the A/F sensor based on comparison between the gradient of the set straight line and an abnormality criterion value.
摘要翻译：一种异常检测装置，包括：空燃比控制部，其对丰富状态和稀薄状态之间的空燃比进行波动控制; 数据获取部，其作为用于检测异常的数据，在所述控制期间获取与所述A / F传感器在丰富峰和所述贫峰之间的输出变化期间的响应性相对应的参数; 基于通过多次获取数据而获取的数据，设定表示参数相对于发动机的进气量的变化的变化趋势的直线的直线设定部; 以及异常判定部，其基于所设定的直线的斜率与异常判别值的比较来判定A / F传感器的异常的有无。

5. 发明申请

US20100318260A1 ABNORMALITY DETECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR AIR/FUEL RATIO SENSOR 有权
标题翻译：空气/燃料比传感器的异常检测装置和异常检测方法
公开(公告)号：US20100318260A1
公开(公告)日：2010-12-16
申请号：US12775872
申请日：2010-05-07
申请人： Takeo Ogiso , Keiko Okamoto , Yuya Yoshikawa , Hiroaki Tsuji
发明人： Takeo Ogiso , Keiko Okamoto , Yuya Yoshikawa , Hiroaki Tsuji
IPC分类号： G01M17/00
CPC分类号： G01M15/104
摘要： An abnormality detection apparatus includes: an air/fuel ratio control portion that controls of fluctuating the air/fuel ratio; a data acquisition portion that acquires a responsiveness parameter during change of output of the sensor between rich and lean peaks; and a abnormality determination portion that when the number of acquisitions reaches or exceeds a first set number, the presence/absence of sensor abnormality based on the average value and the criterion-value is determined, if the average value is not in a pending region; however, if the average value is in the pending region, the data acquisition is performed until the number of acquisitions performed during a large-amount-of-intake-air state of the engine reaches a second set number, and the presence/absence of sensor abnormality based on the average value of the data acquired by the second set number of acquisitions and the criterion-value is determined.
摘要翻译：异常检测装置包括：空气/燃料比控制部，其控制空燃比的波动; 数据采集部，其在丰富峰和所述贫峰之间的所述传感器的输出变化期间获取响应性参数; 以及异常判定部，当获取次数达到或超过第一设定数时，如果平均值不在未决区域，则确定基于平均值和标准值的传感器异常的存在/不存在; 然而，如果平均值处于未决区域，则执行数据采集，直到在发动机的大量进气 - 空气状态期间执行的获取次数达到第二设定数，并且存在/不存在确定基于由第二设定采集次数获得的数据的平均值和标准值的传感器异常。

6. 发明授权

US08240195B2 Abnormality detection apparatus and abnormality detection method for air/fuel ratio sensor 有权
标题翻译：空气/燃料比传感器异常检测装置和异常检测方法
公开(公告)号：US08240195B2
公开(公告)日：2012-08-14
申请号：US12757690
申请日：2010-04-09
申请人： Takeo Ogiso , Hiroaki Tsuji , Keiko Okamoto , Yuya Yoshikawa
发明人： Takeo Ogiso , Hiroaki Tsuji , Keiko Okamoto , Yuya Yoshikawa
IPC分类号： G01M15/04
CPC分类号： F02D41/1495 , F02D41/1456
摘要： An apparatus includes: an control portion that controls fluctuating the air/fuel ratio; a data acquisition portion that acquires a responsiveness parameter during change of output of the sensor between a rich peak to a lean peak; and a determination portion that determines presence/absence of abnormality of the sensor based on an abnormality criterion value and a data average. When the number of the acquired data becomes equal to or greater than a first number, if the number of the acquired data during a large intake-air-amount of an engine is greater than or equal to a second number, the determination portion determines the presence/absence of abnormality, or if the number of the acquired data during the large intake-air-amount is less than the second number, the determination portion does not determines that, but acquires the data until the number of the acquired data during the large intake-air-amount reaches the second number.
摘要翻译：一种装置，包括：控制部，其控制空燃比的波动; 数据获取部，其在丰富的峰值与稀疏峰值之间的传感器的输出变化期间取得响应性参数; 以及确定部，其基于异常判据值和数据平均值来判定传感器的异常的存在/不存在。当获取的数据的数量变得等于或大于第一数量时，如果在发动机的大的进气量期间获取的数据的数量大于或等于第二数量，则确定部分确定无论是否存在异常，或者如果在大的进气量期间获取的数据的数量小于第二个数量，则确定部分不确定但是获取数据，直到获取的数据的数量在大量进气量达到第二个数量。

7. 发明申请

US20100318282A1 ABNORMALITY DETECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR AIR/FUEL RATIO SENSOR 有权
标题翻译：空气/燃料比传感器的异常检测装置和异常检测方法
公开(公告)号：US20100318282A1
公开(公告)日：2010-12-16
申请号：US12757690
申请日：2010-04-09
申请人： Takeo OGISO , Hiroaki Tsuji , Keiko Okamoto , Yuya Yoshikawa
发明人： Takeo OGISO , Hiroaki Tsuji , Keiko Okamoto , Yuya Yoshikawa
IPC分类号： F02D41/04
CPC分类号： F02D41/1495 , F02D41/1456
摘要： An apparatus includes: an control portion that controls fluctuating the air/fuel ratio; a data acquisition portion that acquires a responsiveness parameter during change of output of the sensor between a rich peak to a lean peak; and a determination portion that determines presence/absence of abnormality of the sensor based on an abnormality criterion value and a data average. When the number of the acquired data becomes equal to or greater than a first number, if the number of the acquired data during a large intake-air-amount of an engine is greater than or equal to a second number, the determination portion determines the presence/absence of abnormality, or if the number of the acquired data during the large intake-air-amount is less than the second number, the determination portion does not determines that, but acquires the data until the number of the acquired data during the large intake-air-amount reaches the second number.
摘要翻译：一种装置，包括：控制部，其控制空燃比的波动; 数据获取部，其在丰富的峰值与稀疏峰值之间的传感器的输出变化期间取得响应性参数; 以及确定部，其基于异常判据值和数据平均值来判定传感器的异常的存在/不存在。当获取的数据的数量变得等于或大于第一数量时，如果在发动机的大的进气量期间获取的数据的数量大于或等于第二数量，则确定部分确定无论是否存在异常，或者如果在大的进气量期间获取的数据的数量小于第二个数量，则确定部分不确定但是获取数据，直到获取的数据的数量在大量进气量达到第二个数量。

8. 发明授权

US09206754B2 Control device of internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：US09206754B2
公开(公告)日：2015-12-08
申请号：US14204507
申请日：2014-03-11
申请人： Toshihiro Kato , Yoshifumi Matsuda , Yoshihisa Oda , Masashi Hakariya , Masahide Okada , Isao Nakajima , Hiroaki Tsuji , Tokiji Ito , Yuya Yoshikawa
发明人： Toshihiro Kato , Yoshifumi Matsuda , Yoshihisa Oda , Masashi Hakariya , Masahide Okada , Isao Nakajima , Hiroaki Tsuji , Tokiji Ito , Yuya Yoshikawa
IPC分类号： F01N3/00 , F02D41/14 , F02D41/22 , F02D41/30
CPC分类号： F02D41/1441 , F02D41/1443 , F02D41/1486 , F02D41/221 , F02D41/3094
摘要： A control device of an internal combustion engine according to the present invention has units configured to inject fuel at a first predetermined ratio from first and second fuel injection valves which are provided in each of cylinders to calculate a first value indicating a degree of variation in air-fuel ratios between the cylinders based on a output of the engine, and inject fuel at a second predetermined ratio therefrom to calculate a second value in the same manner. Furthermore, the control device has a unit configured to select one mode from modes relating to abnormality in the first fuel injection valve or the second fuel injection valve on the basis of the first and second values, and calculate a value indicating the degree of the variation in the air-fuel ratios between the cylinders, thereby calculating a fuel amount of the basis of them.
摘要翻译：根据本发明的内燃机的控制装置具有被配置为以设置在每个气缸中的第一和第二燃料喷射阀以第一预定比率喷射燃料的单元，以计算表示空气变化程度的第一值 - 基于发动机的输出的气缸之间的燃料比，并以相同的方式以其第二预定比率喷射燃料以计算第二值。此外，控制装置具有基于第一和第二值从第一燃料喷射阀或第二燃料喷射阀的与异常相关的模式中选择一个模式的单元，并且计算表示变化程度的值在气缸之间的空燃比中，由此计算其基础的燃料量。

9. 发明授权

US09341544B2 Abnormality detecting device of internal combustion engine 有权
标题翻译：内燃机异常检测装置
公开(公告)号：US09341544B2
公开(公告)日：2016-05-17
申请号：US14216004
申请日：2014-03-17
申请人： Isao Nakajima , Yoshifumi Matsuda , Yoshihisa Oda , Masashi Hakariya , Masahide Okada , Hiroaki Tsuji , Tokiji Ito , Tatsuro Shimada , Toshihiro Kato , Yuya Yoshikawa
发明人： Isao Nakajima , Yoshifumi Matsuda , Yoshihisa Oda , Masashi Hakariya , Masahide Okada , Hiroaki Tsuji , Tokiji Ito , Tatsuro Shimada , Toshihiro Kato , Yuya Yoshikawa
IPC分类号： G01M15/10 , F01N11/00 , G01N1/22 , F02D41/22 , F02D41/14 , F02D41/18
CPC分类号： G01M15/102 , F01N11/00 , F01N11/007 , F02D41/1454 , F02D41/1495 , F02D41/18 , F02D41/22 , F02D41/222 , G01M15/10 , G01M15/104 , G01N1/2252 , Y02T10/42 , Y02T10/44 , Y02T10/47
摘要： An abnormality detecting device of an internal combustion engine according to the present invention includes a sensor nick abnormality detecting unit configured to detect a nick abnormality in a detecting element of a downstream side sensor which is provided in a downstream side of an exhaust gas purifying catalyst in an exhaust passage and generates an output corresponding to an oxygen concentration in exhaust gas, on the basis of a matter that a distribution of an output of the downstream side sensor is biased to an area in which the air-fuel ratio is leaner than a theoretical air-fuel ratio, and an inhibiting unit configured to inhibit detection of the nick abnormality of the detecting element by the sensor nick abnormality detecting unit in the case that an intake air amount exceeds a predetermined amount.
摘要翻译：根据本发明的内燃机的异常检测装置包括传感器切痕异常检测单元，其被配置为检测设置在排气净化催化剂的下游侧的下游侧传感器的检测元件中的切口异常排气通道，并且基于下游侧传感器的输出的分布被偏置到空燃比比理论上更稀的区域的事物，生成对应于排气中的氧浓度的输出以及抑制单元，其被配置为在进气量超过预定量的情况下禁止由传感器切痕异常检测单元检测到检测元件的切痕异常。

10. 发明授权

US10072593B2 Control device of internal combustion engine 有权
公开(公告)号：US10072593B2
公开(公告)日：2018-09-11
申请号：US14769956
申请日：2014-01-21
申请人： Masahide Okada , Masashi Hakariya , Yoshifumi Matsuda , Yoshihisa Oda , Hiroaki Tsuji , Tokiji Ito , Isao Nakajima , Toshihiro Kato , Yuya Yoshikawa
发明人： Masahide Okada , Masashi Hakariya , Yoshifumi Matsuda , Yoshihisa Oda , Hiroaki Tsuji , Tokiji Ito , Isao Nakajima , Toshihiro Kato , Yuya Yoshikawa
IPC分类号： F02D41/14 , F02D41/30 , F02D41/22
CPC分类号： F02D41/1495 , F02D41/1441 , F02D41/1454 , F02D41/1455 , F02D41/1456 , F02D41/1475 , F02D41/222 , F02D41/30 , Y02T10/40
摘要： A control device of an internal combustion engine according to the present invention executes air-fuel ratio control based on an output of an air-fuel ratio sensor provided at an upstream side of a catalyst, with correction based on an output of an oxygen sensor at a downstream side of the catalyst. When it is determined that a degree of an output tendency in a predetermined lean region is not less than a predetermined lean degree, and that a degree of an output tendency in a predetermined rich region is less than a predetermined rich degree based on lean tendency and rich tendency values representing output tendencies of the oxygen sensor, a limit is set to the correction in a direction to more suppress enriching of an air-fuel ratio as a degree is larger in which the output of the oxygen sensor is shifted to a lean side.

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