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1. 发明申请

US20070119437A1 Air fuel ratio detection apparatus 有权
标题翻译：空燃比检测装置
公开(公告)号：US20070119437A1
公开(公告)日：2007-05-31
申请号：US11604218
申请日：2006-11-27
申请人： Masamichi Hiraiwa , Takeshi Kawai , Satoshi Teramoto , Shigeki Mori , Hiroshi Inagaki
发明人： Masamichi Hiraiwa , Takeshi Kawai , Satoshi Teramoto , Shigeki Mori , Hiroshi Inagaki
IPC分类号： G01N27/41
CPC分类号： G01N27/419
摘要： Using a gas detection voltage Vs output from a terminal CU, a determination is made at to whether, after startup of an air-fuel ratio detection apparatus (1), a full-range air-fuel ratio sensor (10) has reached a semi-activated state in which a determination can be made as to whether the air-fuel ratio is on the rich or lean side based on a change in a gas detection signal Vic. After determining that the sensor has reached the semi-activated state, the signal Vic is compared with a threshold to determine whether the air-fuel ratio is on the rich or lean side. In the apparatus (1), the potential difference between an outer pump electrode of a pump cell (14) and a reference electrode of an oxygen concentration measurement cell (24) is obtained via a first differential amplification circuit (53) as the gas detection signal Vic, the signal Vic being highly responsive to a change in air-fuel ratio of exhaust gas.
摘要翻译：使用从端子CU输出的气体检测电压Vs，判定在空燃比检测装置（1）启动后，全范围空燃比传感器（10）到达半空基于气体检测信号Vic的变化，能够进行空燃比是富气还是偏侧的判定。在确定传感器已经达到半激活状态之后，将信号Vic与阈值进行比较，以确定空燃比是富有还是偏侧。在装置（1）中，通过作为气体检测器的第一差分放大电路（53）获得泵电池（14）的外泵电极与氧浓度测定电池（24）的参比电极之间的电位差信号Vic，信号Vic对废气的空燃比变化高度响应。

2. 发明授权

US07964073B2 Air fuel ratio detection apparatus 有权
标题翻译：空燃比检测装置
公开(公告)号：US07964073B2
公开(公告)日：2011-06-21
申请号：US11604218
申请日：2006-11-27
申请人： Masamichi Hiraiwa , Takeshi Kawai , Satoshi Teramoto , Shigeki Mori , Hiroshi Inagaki
发明人： Masamichi Hiraiwa , Takeshi Kawai , Satoshi Teramoto , Shigeki Mori , Hiroshi Inagaki
IPC分类号： G01N27/419
CPC分类号： G01N27/419
摘要： Using a gas detection voltage Vs output from a terminal CU, a determination is made at to whether, after startup of an air-fuel ratio detection apparatus (1), a full-range air-fuel ratio sensor (10) has reached a semi-activated state in which a determination can be made as to whether the air-fuel ratio is on the rich or lean side based on a change in a gas detection signal Vic. After determining that the sensor has reached the semi-activated state, the signal Vic is compared with a threshold to determine whether the air-fuel ratio is on the rich or lean side. In the apparatus (1), the potential difference between an outer pump electrode of a pump cell (14) and a reference electrode of an oxygen concentration measurement cell (24) is obtained via a first differential amplification circuit (53) as the gas detection signal Vic, the signal Vic being highly responsive to a change in air-fuel ratio of exhaust gas.
摘要翻译：使用从端子CU输出的气体检测电压Vs，判定在空燃比检测装置（1）启动后，全范围空燃比传感器（10）到达半空基于气体检测信号Vic的变化，能够进行空燃比是富气还是偏侧的判定。在确定传感器已经达到半激活状态之后，将信号Vic与阈值进行比较，以确定空燃比是富有还是偏侧。在装置（1）中，通过作为气体检测器的第一差分放大电路（53）获得泵电池（14）的外泵电极与氧浓度测定电池（24）的参比电极之间的电位差信号Vic，信号Vic对废气的空燃比变化高度响应。

3. 发明授权

US08182664B2 Sensor control device 有权
标题翻译：传感器控制装置
公开(公告)号：US08182664B2
公开(公告)日：2012-05-22
申请号：US12115840
申请日：2008-05-06
申请人： Masamichi Hiraiwa , Nobuhiro Inoue , Satoshi Teramoto , Yukinobu Nagao
发明人： Masamichi Hiraiwa , Nobuhiro Inoue , Satoshi Teramoto , Yukinobu Nagao
IPC分类号： G01N27/419
CPC分类号： G01N27/4067
摘要： A sensor control device for controlling a current application state of a gas sensor element when measuring a specific gas component concentration in a gas to be measured using the gas sensor element, which sensor control device includes: at least one cell having a solid electrolyte body and a pair of electrodes; a sensor heating unit as defined herein; an oxygen reference pole generating unit as defined herein; a damage avoidance time elapse determining unit as defined herein; and a reference generation current application permitting unit as defined herein.
摘要翻译：一种传感器控制装置，用于在使用气体传感器元件测量要测量的气体中的特定气体成分浓度时，控制气体传感器元件的当前施加状态，所述传感器控制装置包括：至少一个具有固体电解质体的电池，一对电极; 如本文所定义的传感器加热单元; 如本文所定义的氧参考极产生单元; 如本文所定义的损害回避时间流逝确定单元; 以及如本文所定义的参考生成电流应用许可单元。

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