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1. 发明授权

US08260576B2 Exhaust gas sensor abnormality diagnostic device 有权
公开(公告)号：US08260576B2
公开(公告)日：2012-09-04
申请号：US13287460
申请日：2011-11-02
申请人： Yasushi Iwazaki , Hiroshi Sawada , Takahiro Joko , Masaya Kawaji
发明人： Yasushi Iwazaki , Hiroshi Sawada , Takahiro Joko , Masaya Kawaji
IPC分类号： G06F11/30
CPC分类号： G01N27/4175 , F02D41/1454 , F02D41/222
摘要： An exhaust gas sensor abnormality diagnostic device includes an exhaust gas sensor, and a judgment means that judges whether execution conditions are established for making an abnormality diagnosis of element breakage in the exhaust gas sensor. The device also includes an abnormality diagnosis means that makes the abnormality diagnosis in accordance with an output signal generated by the exhaust gas sensor. Further, when the integrated value of intake air amounts of an internal combustion engine is not smaller than a predetermined value, the judgment means judges that the execution conditions are established. The abnormality diagnosis means cancels the establishment of the execution conditions when an intake air amount of the internal combustion engine remains less than a predetermined value for a predetermined period of time.

2. 发明申请

US20090089011A1 Exhaust Gas Sensor Abnormality Diagnostic Device 有权
标题翻译：废气传感器异常诊断装置
公开(公告)号：US20090089011A1
公开(公告)日：2009-04-02
申请号：US12226774
申请日：2007-06-26
申请人： Yasushi Iwazaki , Hiroshi Sawada , Takahiro Joko , Masaya Kawaji
发明人： Yasushi Iwazaki , Hiroshi Sawada , Takahiro Joko , Masaya Kawaji
IPC分类号： G06F15/00
CPC分类号： G01N27/4175 , F02D41/1454 , F02D41/222
摘要： An exhaust gas sensor abnormality diagnostic device includes an exhaust gas sensor, and a judgment means that judges whether execution conditions are established for making an abnormality diagnosis of element breakage in the exhaust gas sensor. The device also includes an abnormality diagnosis means that makes the abnormality diagnosis in accordance with an output signal generated by the exhaust gas sensor. Further, when the integrated value of intake air amounts of an internal combustion engine is not smaller than a predetermined value, the judgment means judges that the execution conditions are established. The abnormality diagnosis means cancels the establishment of the execution conditions when an intake air amount of the internal combustion engine remains less than a predetermined value for a predetermined period of time.
摘要翻译：废气传感器异常诊断装置包括排气传感器，以及判断装置，其判断在废气传感器中进行元件破损的异常诊断的执行条件。该装置还包括根据由排气传感器产生的输出信号进行异常诊断的异常诊断装置。此外，当内燃机的进气量的积分值不小于预定值时，判断装置判定执行条件成立。当内燃机的进气量保持小于预定值一段预定时间时，异常诊断装置取消执行条件的建立。

3. 发明授权

US08214176B2 Exhaust gas sensor abnormality diagnostic device 有权
标题翻译：废气传感器异常诊断装置
公开(公告)号：US08214176B2
公开(公告)日：2012-07-03
申请号：US12226774
申请日：2007-06-26
申请人： Yasushi Iwazaki , Hiroshi Sawada , Takahiro Joko , Masaya Kawaji
发明人： Yasushi Iwazaki , Hiroshi Sawada , Takahiro Joko , Masaya Kawaji
IPC分类号： G06F19/00
CPC分类号： G01N27/4175 , F02D41/1454 , F02D41/222
摘要： An exhaust gas sensor abnormality diagnostic device includes an exhaust gas sensor, and a judgment means that judges whether execution conditions are established for making an abnormality diagnosis of element breakage in the exhaust gas sensor. The device also includes an abnormality diagnosis means that makes the abnormality diagnosis in accordance with an output signal generated by the exhaust gas sensor. Further, when the integrated value of intake air amounts of an internal combustion engine is not smaller than a predetermined value, the judgment means judges that the execution conditions are established. The abnormality diagnosis means cancels the establishment of the execution conditions when an intake air amount of the internal combustion engine remains less than a predetermined value for a predetermined period of time.
摘要翻译：废气传感器异常诊断装置包括排气传感器，以及判断装置，其判断在废气传感器中进行元件破损的异常诊断的执行条件。该装置还包括根据由排气传感器产生的输出信号进行异常诊断的异常诊断装置。此外，当内燃机的进气量的积分值不小于预定值时，判断装置判定执行条件成立。当内燃机的进气量保持小于预定值一段预定时间时，异常诊断装置取消执行条件的建立。

4. 发明申请

US20120046910A1 EXHAUST GAS SENSOR ABNORMALITY DIAGNOSTIC DEVICE 有权
标题翻译：排气传感器异常诊断装置
公开(公告)号：US20120046910A1
公开(公告)日：2012-02-23
申请号：US13287460
申请日：2011-11-02
申请人： Yasushi IWAZAKI , Hiroshi Sawada , Takahiro Joko , Masaya Kawaji
发明人： Yasushi IWAZAKI , Hiroshi Sawada , Takahiro Joko , Masaya Kawaji
IPC分类号： G06F15/00
CPC分类号： G01N27/4175 , F02D41/1454 , F02D41/222
摘要： An exhaust gas sensor abnormality diagnostic device includes an exhaust gas sensor, and a judgment means that judges whether execution conditions are established for making an abnormality diagnosis of element breakage in the exhaust gas sensor. The device also includes an abnormality diagnosis means that makes the abnormality diagnosis in accordance with an output signal generated by the exhaust gas sensor. Further, when the integrated value of intake air amounts of an internal combustion engine is not smaller than a predetermined value, the judgment means judges that the execution conditions are established. The abnormality diagnosis means cancels the establishment of the execution conditions when an intake air amount of the internal combustion engine remains less than a predetermined value for a predetermined period of time.
摘要翻译：废气传感器异常诊断装置包括排气传感器，以及判断装置，其判断在废气传感器中进行元件破损的异常诊断的执行条件。该装置还包括根据由排气传感器产生的输出信号进行异常诊断的异常诊断装置。此外，当内燃机的进气量的积分值不小于预定值时，判断装置判定执行条件成立。当内燃机的进气量保持小于预定值一段预定时间时，异常诊断装置取消执行条件的建立。

5. 发明申请

US20060277971A1 Method and apparatus for detecting exhaust gas sensor defect 失效
标题翻译：检测废气传感器缺陷的方法和装置
公开(公告)号：US20060277971A1
公开(公告)日：2006-12-14
申请号：US11448794
申请日：2006-06-08
申请人： Kenji Tashiro , Yasushi Iwazaki , Masanobu Kanamaru , Hiroshi Sawada , Masaya Kawaji , Takashi Matsui
发明人： Kenji Tashiro , Yasushi Iwazaki , Masanobu Kanamaru , Hiroshi Sawada , Masaya Kawaji , Takashi Matsui
IPC分类号： G01N33/00
CPC分类号： G01N27/4065
摘要： An air-fuel ratio sensor that outputs a sensor signal used for the feedback control of an air-fuel ratio is provided. It is determined whether an element crack is present by applying a reverse voltage to the air-fuel ratio sensor. The value of the sensor signal output from the air-fuel ratio sensor is corrected during a time period “A”. The time period “A” consists of a reverse-voltage application time period in which the reverse voltage is applied, and a return time period “T” after application of the reverse voltage ends. The return time period “T” is set based on sensor impedance correlated with the internal resistance of the air-fuel ratio sensor. The return time period “T” decreases as the sensor impedance decreases.
摘要翻译：提供输出用于空燃比的反馈控制的传感器信号的空燃比传感器。通过向空燃比传感器施加反向电压来确定是否存在元件裂纹。在空燃比传感器输出的传感器信号的值在时间段“A”期间被校正。时间段“A”包括施加反向电压的反向电压施加时间段，反向电压施加后的返回时间段“T”结束。基于与空燃比传感器的内阻相关的传感器阻抗来设定返回时间段“T”。返回时间段“T”随着传感器阻抗的减小而减小。

6. 发明授权

US07434450B2 Method and apparatus for detecting exhaust gas sensor defect 失效
标题翻译：检测废气传感器缺陷的方法和装置
公开(公告)号：US07434450B2
公开(公告)日：2008-10-14
申请号：US11448794
申请日：2006-06-08
申请人： Kenji Tashiro , Yasushi Iwazaki , Masanobu Kanamaru , Hiroshi Sawada , Masaya Kawaji , Takashi Matsui
发明人： Kenji Tashiro , Yasushi Iwazaki , Masanobu Kanamaru , Hiroshi Sawada , Masaya Kawaji , Takashi Matsui
IPC分类号： G01R31/30 , G01R31/3163 , G01N27/12 , G01N27/30
CPC分类号： G01N27/4065
摘要： An air-fuel ratio sensor that outputs a sensor signal used for the feedback control of an air-fuel ratio is provided. It is determined whether an element crack is present by applying a reverse voltage to the air-fuel ratio sensor. The value of the sensor signal output from the air-fuel ratio sensor is corrected during a time period “A”. The time period “A” consists of a reverse-voltage application time period in which the reverse voltage is applied, and a return time period “T” after application of the reverse voltage ends. The return time period “T” is set based on sensor impedance correlated with the internal resistance of the air-fuel ratio sensor. The return time period “T” decreases as the sensor impedance decreases.
摘要翻译：提供输出用于空燃比的反馈控制的传感器信号的空燃比传感器。通过向空燃比传感器施加反向电压来确定是否存在元件裂纹。在空燃比传感器输出的传感器信号的值在时间段“A”期间被校正。时间段“A”包括施加反向电压的反向电压施加时间段，反向电压施加后的返回时间段“T”结束。基于与空燃比传感器的内阻相关的传感器阻抗来设定返回时间段“T”。返回时间段“T”随着传感器阻抗的减小而减小。

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