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21. 发明授权

US08052863B2 Gas sensor control apparatus designed to ensure accuracy of measurement in gas sensor 有权
标题翻译：设计用于确保气体传感器测量精度的气体传感器控制装置
公开(公告)号：US08052863B2
公开(公告)日：2011-11-08
申请号：US12034078
申请日：2008-02-20
申请人： Toshiyuki Suzuki , Tomoo Kawase , Eiichi Kurokawa , Yohei Kawaki
发明人： Toshiyuki Suzuki , Tomoo Kawase , Eiichi Kurokawa , Yohei Kawaki
IPC分类号： G01N27/417
CPC分类号： G01N27/4175
摘要： The gas sensor control apparatus develops a first voltage based on a first reference voltage at a negative terminal of a gas sensor device through a resistor and a second voltage based on a second reference voltage at a positive terminal of the gas sensor device. A controller samples through the resistor a sensor current, as created upon the development of the first and second voltage for measuring the concentration of gas. When the impedance of the gas sensor device is measured, the controller alternates the first voltage across the first reference voltage. The value (i.e., a zero-point) of the voltage applied to the gas sensor device when the sensor current is zero (i.e., 0 mA) depends upon the first and second reference voltages. The zero-point is corrected by regulating the second reference voltage to match an applying voltage characteristic to the gas sensor device correctly.
摘要翻译：气体传感器控制装置通过电阻器在气体传感器装置的负极端子处基于第一参考电压产生第一电压，并且在气体传感器装置的正端处基于第二参考电压产生第二电压。控制器通过电阻器对传感器电流进行采样，这是根据开发用于测量气体浓度的第一和第二电压产生的。当测量气体传感器装置的阻抗时，控制器交替跨越第一参考电压的第一电压。当传感器电流为零（即0mA）时施加到气体传感器装置的电压的值（即，零点）取决于第一和第二参考电压。通过调节第二参考电压以正确地对气体传感器装置施加施加电压特性来校正零点。

22. 发明申请

US20080094079A1 Gas concentration detection apparatus having function for detecting sensor element activation status 有权
标题翻译：具有检测传感器元件启动状态功能的气体浓度检测装置
公开(公告)号：US20080094079A1
公开(公告)日：2008-04-24
申请号：US11907556
申请日：2007-10-15
申请人： Toshiyuki Suzuki , Tomoo Kawase , Eiichi Kurokawa , Yohei Kawaki
发明人： Toshiyuki Suzuki , Tomoo Kawase , Eiichi Kurokawa , Yohei Kawaki
IPC分类号： G01N27/02
CPC分类号： G01N27/407
摘要： A gas concentration detection apparatus includes a series-connected combination of a sensor element and a resistor, with an AC voltage being applied to one of the outer terminals of that combination and with the other outer terminal being held at a fixed potential. A DC voltage signal at a level determined by an oxygen concentration that is detected by the sensor element, and an AC voltage signal at an amplitude determined by sensor element impedance and hence by the sensor element activation status, are extracted from the series-connected combination by respectively separate circuits which apply separately determined amplification factors.
摘要翻译：气体浓度检测装置包括传感器元件和电阻器的串联组合，其中AC电压被施加到该组合的外部端子之一，而另一个外部端子被保持在固定电位。由传感器元件检测到的由氧浓度确定的水平的直流电压信号和由传感器元件阻抗确定的振幅以及因此由传感器元件启动状态确定的交流电压信号从串联连接的组合分别分别应用单独确定的放大因子的电路。

23. 发明申请

US20070215470A1 Gas concentration measuring apparatus designed to enhance response of sensor 审中-公开
标题翻译：设计用于增强传感器响应的气体浓度测量仪
公开(公告)号：US20070215470A1
公开(公告)日：2007-09-20
申请号：US11715394
申请日：2007-03-08
申请人： Tomoo Kawase , Mitsunobu Niwa , Toshiyuki Suzuki , Satoshi Hada
发明人： Tomoo Kawase , Mitsunobu Niwa , Toshiyuki Suzuki , Satoshi Hada
IPC分类号： G01N27/26
CPC分类号： G01N27/4065
摘要： A gas concentration measuring apparatus is provided which may be employed in measuring the concentration of oxygen contained in exhaust emissions of automotive engines. The apparatus includes a gas sensor equipped with a solid electrolyte body and a pair of electrodes affixed to opposed surfaces of the solid electrolyte body. The apparatus includes an applied voltage controller which works to apply the voltage to the electrodes of the gas sensor to create an electric current as a function of a concentration of gas to be measured. The applied voltage controller is designed to have an enhanced gain of the voltage to the value of the current, as produced by the gas sensor, in a predetermined frequency band, thereby increasing the response of the gas sensor without inducing the oscillation of the voltage to be applied to the gas sensor.
摘要翻译：提供一种气体浓度测量装置，其可用于测量汽车发动机废气排放中所含的氧浓度。该装置包括配备有固体电解质体和固定在固体电解质体的相对表面上的一对电极的气体传感器。该装置包括施加的电压控制器，其工作以将电压施加到气体传感器的电极，以产生作为待测量气体的浓度的函数的电流。所施加的电压控制器被设计成在预定频带中将电压的增益提高到由气体传感器产生的电流值，从而增加气体传感器的响应而不引起电压的振荡应用于气体传感器。

24. 发明授权

US07980121B2 Degradation simulator for gas sensor 有权
标题翻译：气体传感器降解模拟器
公开(公告)号：US07980121B2
公开(公告)日：2011-07-19
申请号：US12203398
申请日：2008-09-03
申请人： Mikiyasu Matsuoka , Tomoo Kawase , Eiichi Kurokawa
发明人： Mikiyasu Matsuoka , Tomoo Kawase , Eiichi Kurokawa
IPC分类号： G01M15/10
CPC分类号： G01N33/0037 , F02D41/1454 , F02D41/1474 , F02D41/1495 , F02D41/222 , F02D41/2474 , Y02A50/245
摘要： The degradation simulator is used for a gas sensor including a sensor element having a solid electrolyte layer and a pair of electrodes located opposite to each other across from the solid electrolyte layer, the sensor element outputting a sensor output signal having a value depending on concentration of a specific gas in the ambient gas. The degradation simulator includes a first setting function of enabling variably setting a time constant delay which appears on the sensor output signal when concentration of the specific gas changes, a second setting function of enabling variably setting a dead time delay which appears on the sensor output signal when concentration of the specific gas changes, and an adding function of adding at least one of the time constant delay and dead time delay to the sensor output signal in order to generate a pseudo-degraded sensor output signal in accordance with an external instruction.
摘要翻译：降解模拟器用于气体传感器，其包括具有固体电解质层的传感器元件和在固体电解质层之间彼此相对定位的一对电极，传感器元件输出具有取决于浓度的值的传感器输出信号环境气体中的特定气体。降级模拟器包括第一设置功能，其能够可变地设置当特定气体的浓度改变时出现在传感器输出信号上的时间常数延迟，允许可变地设置出现在传感器输出信号上的死区延迟的第二设置功能当特定气体的浓度变化时，以及将至少一个时间常数延迟和死区时间延迟添加到传感器输出信号中的加法功能，以便根据外部指令产生伪劣化的传感器输出信号。

25. 发明授权

US07582197B2 Gas concentration measuring apparatus with failure monitor 有权
标题翻译：具有故障监测器的气体浓度测量仪
公开(公告)号：US07582197B2
公开(公告)日：2009-09-01
申请号：US11091916
申请日：2005-03-29
申请人： Tomoo Kawase , Eiichi Kurokawa
发明人： Tomoo Kawase , Eiichi Kurokawa
IPC分类号： G01N27/26
CPC分类号： F02D41/1495 , F02D41/1455 , G01N27/4175 , G01N33/007
摘要： A gas concentration measuring apparatus for use in air-fuel ratio control of motor vehicle engines is provided which is designed to detect and identify a cause of failure in operation of an A/F sensor. The apparatus works to apply the voltage to a sensor element and sweep it to produce a change in electrical current flowing through the sensor element for measuring the impedance of the sensor element. The apparatus samples values of the change in the current, a sensor output indicating an air-fuel ratio of mixture supplied to the engine, etc., before and/or after the sensor element is activated and uses a combination thereof to identify the cause of the failure of the A/F sensor.
摘要翻译：提供一种用于机动车辆发动机的空燃比控制的气体浓度测量装置，其被设计用于检测和识别A / F传感器的操作失败的原因。该装置用于将电压施加到传感器元件并将其扫过以产生流过传感器元件的电流变化，以测量传感器元件的阻抗。该装置在传感器元件被激活之前和/或之后采样电流变化的值，传感器输出，指示供应给发动机的混合物的空气 - 燃料比等，并且使用其组合来识别 A / F传感器的故障。

26. 发明申请

US20080262704A1 OXYGEN SENSOR OUTPUT CORRECTION APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的氧气传感器输出校正装置
公开(公告)号：US20080262704A1
公开(公告)日：2008-10-23
申请号：US12104027
申请日：2008-04-16
申请人： Tomoo Kawase , Eiichi Kurokawa , Takahito Masuko
发明人： Tomoo Kawase , Eiichi Kurokawa , Takahito Masuko
IPC分类号： F01N9/00
CPC分类号： F01N9/00 , F02D41/123 , F02D41/1448 , F02D41/1455 , F02D41/18 , F02D41/2454 , F02D41/2474 , Y02T10/47
摘要： A correction apparatus for correcting an error in an output of an oxygen sensor such as an A/F sensor installed in an exhaust pipe of an internal combustion engine to measure the concentration of oxygen contained in exhaust gas. The apparatus works to determine a given parameter correlating with an actual concentration of oxygen within the exhaust pipe after start of a fuel cut event and also determine an oxygen concentration-corresponding output based on the given parameter which is a parameter corresponding to an output of the oxygen sensor considered to represent the actual concentration of oxygen correctly. The apparatus samples an output of the oxygen sensor during the fuel cut event and determines a correction factor based on the sampled output of the oxygen sensor and the oxygen concentration-corresponding output for use in correcting an output of the oxygen sensor when the engine is undergoing no fuel cut.
摘要翻译：一种用于校正安装在内燃机的排气管中的A / F传感器等氧传感器的输出的误差的校正装置，以测量废气中所含的氧浓度。该装置用于确定在开始燃料切断事件之后与排气管内的氧气的实际浓度相关联的给定参数，并且还基于给定参数确定氧浓度对应的输出，所述给定参数是对应于氧气传感器被认为是正确表示氧气的实际浓度。该装置在燃料切断事件期间对氧传感器的输出进行采样，并根据氧传感器的采样输出和氧浓度相应的输出确定校正因子，用于在发动机正在进行时校正氧传感器的输出没有燃料切断

27. 发明申请

US20050217347A1 Gas concentration measuring apparatus with failure monitor 有权
标题翻译：具有故障监测器的气体浓度测量仪
公开(公告)号：US20050217347A1
公开(公告)日：2005-10-06
申请号：US11091916
申请日：2005-03-29
申请人： Tomoo Kawase , Eiichi Kurokawa
发明人： Tomoo Kawase , Eiichi Kurokawa
IPC分类号： F02D41/14 , G01M19/00
CPC分类号： F02D41/1495 , F02D41/1455 , G01N27/4175 , G01N33/007
摘要： A gas concentration measuring apparatus for use in air-fuel ratio control of motor vehicle engines is provided which is designed to detect and identify a cause of failure in operation of an A/F sensor. The apparatus works to apply the voltage to a sensor element and sweep it to produce a change in electrical current flowing through the sensor element for measuring the impedance of the sensor element. The apparatus samples values of the change in the current, a sensor output indicating an air-fuel ratio of mixture supplied to the engine, etc., before and/or after the sensor element is activated and uses a combination thereof to identify the cause of the failure of the A/F sensor.
摘要翻译：提供一种用于机动车辆发动机的空燃比控制的气体浓度测量装置，其被设计用于检测和识别A / F传感器的操作失败的原因。该装置用于将电压施加到传感器元件并将其扫过以产生流过传感器元件的电流变化，以测量传感器元件的阻抗。该装置在传感器元件被激活之前和/或之后采样电流变化的值，传感器输出，指示供应给发动机的混合物的空气 - 燃料比等，并且使用其组合来识别 A / F传感器的故障。

28. 发明授权

US07776194B2 Gas concentration measuring apparatus designed to compensate for output error 有权
标题翻译：设计用于补偿输出误差的气体浓度测量仪
公开(公告)号：US07776194B2
公开(公告)日：2010-08-17
申请号：US11098500
申请日：2005-04-05
申请人： Tomoo Kawase , Eiichi Kurokawa , Koji Jono
发明人： Tomoo Kawase , Eiichi Kurokawa , Koji Jono
IPC分类号： G01N27/26
CPC分类号： G01N27/4175
摘要： A gas concentration measuring apparatus for use in air-fuel ratio control of motor vehicle engines is provided which is designed to select or determine a correction factor for an output of an A/F sensor, as produced through a sensor control circuit, for compensating for errors in circuit characteristics of the A/F sensor and/or the sensor control circuit to ensure the accuracy of measurement in the apparatus.
摘要翻译：提供一种用于机动车辆发动机的空燃比控制的气体浓度测量装置，其被设计成选择或确定通过传感器控制电路产生的A / F传感器的输出的校正因子，以补偿 A / F传感器和/或传感器控制电路的电路特性误差，以确保设备中的测量精度。

29. 发明授权

US07606654B2 Oxygen sensor output correction apparatus for internal combustion engine 有权
标题翻译：用于内燃机的氧传感器输出校正装置
公开(公告)号：US07606654B2
公开(公告)日：2009-10-20
申请号：US12104027
申请日：2008-04-16
申请人： Tomoo Kawase , Eiichi Kurokawa , Takahito Masuko
发明人： Tomoo Kawase , Eiichi Kurokawa , Takahito Masuko
IPC分类号： F02D41/14
CPC分类号： F01N9/00 , F02D41/123 , F02D41/1448 , F02D41/1455 , F02D41/18 , F02D41/2454 , F02D41/2474 , Y02T10/47
摘要： A correction apparatus for correcting an error in an output of an oxygen sensor such as an A/F sensor installed in an exhaust pipe of an internal combustion engine to measure the concentration of oxygen contained in exhaust gas. The apparatus works to determine a given parameter correlating with an actual concentration of oxygen within the exhaust pipe after start of a fuel cut event and also determine an oxygen concentration-corresponding output based on the given parameter which is a parameter corresponding to an output of the oxygen sensor considered to represent the actual concentration of oxygen correctly. The apparatus samples an output of the oxygen sensor during the fuel cut event and determines a correction factor based on the sampled output of the oxygen sensor and the oxygen concentration-corresponding output for use in correcting an output of the oxygen sensor when the engine is undergoing no fuel cut.
摘要翻译：一种用于校正安装在内燃机的排气管中的A / F传感器等氧传感器的输出的误差的校正装置，以测量废气中所含的氧浓度。该装置用于确定在开始燃料切断事件之后与排气管内的氧气的实际浓度相关联的给定参数，并且还基于给定参数确定氧浓度对应的输出，所述给定参数是对应于氧气传感器被认为是正确表示氧气的实际浓度。该装置在燃料切断事件期间对氧传感器的输出进行采样，并根据氧传感器的采样输出和氧浓度相应的输出确定校正因子，用于在发动机正在进行时校正氧传感器的输出没有燃料切断

30. 发明申请

US20080185289A1 Sensor control device 有权
标题翻译：传感器控制装置
公开(公告)号：US20080185289A1
公开(公告)日：2008-08-07
申请号：US12010682
申请日：2008-01-29
申请人： Mikiyasu Matsuoka , Tomoo Kawase , Eiichi Kurokawa
发明人： Mikiyasu Matsuoka , Tomoo Kawase , Eiichi Kurokawa
IPC分类号： G01N27/26
CPC分类号： G01N27/4065
摘要： A current detection resistance in a sensor control device is connected to a sensor element. The current flowing in the sensor element is detected through the current detection resistance. The current detection resistance is connected to an inverting amplification circuit for outputting an air/fuel output voltage to be transferred to a microcomputer. An offset setting circuit is connected to one input terminal of an operational amplifier in the inverting amplification circuit. The offset setting circuit is comprised of a switching element, a resistance connected in series to the switching element, and two dividing voltage resistances whose common node is connected to the resistance. The offset setting circuit generates and gives an offset to the A/F output voltage. The switching element is turned ON and OFF based on an offset switching signal transferred from the microcomputer.
摘要翻译：传感器控制装置中的电流检测电阻连接到传感器元件。通过电流检测电阻检测流过传感器元件的电流。电流检测电阻连接到用于输出要传送到微计算机的空气/燃料输出电压的反相放大电路。偏移设置电路连接到反相放大电路中的运算放大器的一个输入端。偏移设定电路由开关元件，与开关元件串联连接的电阻以及共同节点连接到电阻的两个分压电阻构成。偏移设置电路产生A / F输出电压的偏移量。基于从微计算机传送的偏移切换信号，开关元件被接通和断开。

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