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1. 发明专利

JP2014142199A Exhaust-gas component detector 有权
标题翻译：排气组件检测器
公开(公告)号：JP2014142199A
公开(公告)日：2014-08-07
申请号：JP2013009255
申请日：2013-01-22
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所 , Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIZUTANI KEIGO , TERANISHI SHINYA , SHIMOKAWA HIRONOBU , AOKI KEIICHIRO , WAKAO KAZUHIRO
IPC分类号： G01N27/416 , F01N3/00
摘要： PROBLEM TO BE SOLVED: To detect SOx contained in an exhaust gas.SOLUTION: An exhaust-component gas detector comprises an oxygen pump cell and a sensor cell. The oxygen pump cell has a first solid electrolyte forming a part of an exterior wall of a space into which an exhaust gas is introduced and a pair of electrodes that hold the first solid electrolyte therebetween and are disposed in such a manner that one of the electrodes contacts the space. The sensor cell has a second solid electrolyte forming a part of an exterior wall of the space, a pair of electrodes that hold the second solid electrolyte therebetween and are disposed in such a manner that one of the electrodes contacts the space, and a SOx absorbing and storing section provided on the electrode contacting the space. A voltage to regulate the concentration of oxygen in the space is applied to the oxygen pump cell. A voltage to decompose SOx is applied to the sensor cell. When current is applied to the sensor cell after a predetermined period of time when application of current is stopped, the amount of SOx or the concentration of SOx is estimated depending on an output from the sensor cell.
摘要翻译：要解决的问题：检测废气中所含的SO x。解决方案：排气组分气体检测器包括氧泵单元和传感器单元。氧泵单元具有第一固体电解质，其形成引入废气的空间的外壁的一部分，以及一对电极，其将第一固体电解质保持在其间并且以这样的方式设置，使得电极中的一个联系空间。所述传感器单元具有形成所述空间的外壁的一部分的第二固体电解质，一对电极，其将所述第二固体电解质保持在其间并且以使得所述电极中的一个接触所述空间并且吸收SO x的方式设置以及设置在与该空间接触的电极上的存储部。将调节该空间中的氧浓度的电压施加到氧气泵电池。将分解SOx的电压施加到传感器单元。当在施加电流停止的预定时间段之后将电流施加到传感器单元时，根据传感器单元的输出来估计SO x的量或SO x的浓度。

2. 发明专利

JP2012185021A Oxygen sensor activation method and oxygen sensor 有权
标题翻译：氧气传感器激活方法和氧传感器
公开(公告)号：JP2012185021A
公开(公告)日：2012-09-27
申请号：JP2011047899
申请日：2011-03-04
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： AOKI KEIICHIRO , HAYASHITA GO
IPC分类号： G01N27/409
摘要： PROBLEM TO BE SOLVED: To suppress uneven sensitivity to rich gas and lean gas of an electromotive force type oxygen sensor, to improve the sensitivity of the oxygen sensor.SOLUTION: The oxygen sensor is an electromotive force type sensor including an atmospheric electrode, an exhaust electrode, and a solid electrolyte disposed between the atmospheric electrode and the exhaust electrode. In activating the oxygen sensor, the oxygen sensor is subjected to heat treatment at a predetermined temperature. A predetermined voltage is applied, after the heat treatment, between the atmospheric electrode as a positive electrode and the exhaust electrode as a negative electrode.
摘要翻译：要解决的问题：为了抑制对电动势型氧传感器的富气体和贫气的不敏感性，以提高氧传感器的灵敏度。解决方案：氧传感器是一种电动力型传感器，其包括设置在大气电极和排气电极之间的大气电极，排气电极和固体电解质。在激活氧传感器时，氧传感器在预定温度下进行热处理。在热处理之后，在作为正极的大气电极和作为负极的排气电极之间施加预定电压。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011256811A Pm amount detection system 有权
标题翻译： PM AMOUNT检测系统
公开(公告)号：JP2011256811A
公开(公告)日：2011-12-22
申请号：JP2010133048
申请日：2010-06-10
申请人： Ritsumeikan , Toyota Motor Corp , トヨタ自動車株式会社 , 学校法人立命館
发明人： NISHIJIMA HIROTAKA , IKEDA SHINJI , AOKI KEIICHIRO , YOSHIHARA FUKUZEN , NAKANISHI YASUFUMI , SUZUKI TAKAYA
IPC分类号： F01N3/023 , F01N3/00
CPC分类号： G01N15/0656 , F01N9/002 , F01N2410/00 , F01N2560/05 , F01N2560/20 , F02D41/1466
摘要： PROBLEM TO BE SOLVED: To provide a PM (Particulate Matter) amount detection system exactly detecting the amount of the PM contained in the exhaust gas of an internal combustion engine.SOLUTION: In the PM amount detection system, a porous structure including a pair of electrodes disposed in the flow direction of the exhaust gas and a solid electrolyte interposed between the electrodes is arranged in an exhaust passage of the internal combustion engine and the amount of the PM in the exhaust gas is specified based on a potential difference generated between the electrodes as a parameter.
摘要翻译：要解决的问题：提供一种精确检测内燃机废气中所含的PM量的PM（颗粒物）量检测系统。解决方案：在PM量检测系统中，在内燃机的排气通道中布置有包括在废气的流动方向上设置的一对电极的多孔结构和插在电极之间的固体电解质，基于在电极之间产生的电位差作为参数来指定废气中的PM的量。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2011185614A Device for diagnosing abnormality of oxygen sensor 审中-公开
标题翻译：用于诊断氧传感器异常的装置
公开(公告)号：JP2011185614A
公开(公告)日：2011-09-22
申请号：JP2010048150
申请日：2010-03-04
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： AOKI KEIICHIRO , IWASAKI YASUSHI , IMAMURA KEIJI
IPC分类号： G01N27/26 , F02D45/00 , G01N27/409
摘要： PROBLEM TO BE SOLVED: To provide an abnormality diagnosing device suitable for an oxygen sensor wherein a diffusion layer is provided to the outer layer part of a detection element. SOLUTION: A plurality of AC voltages different in frequency (f) are applied to the detection element in a state that positive DC voltage is applied and a plurality of the impedances corresponding to respective frequencies are detected. Then, it is judged whether there is the data corresponding to the third circular arc R3 counted from a high frequency side toward a low frequency side of the data of those impedances and, on the basis of this judge result, it is judged whether the oxygen sensor is normal. The normality/abnormality of the oxygen sensor is judged using that there is difference in the presence of the data corresponding to the third circular arc R3 in the case of the normal sensor and in the case of the abnormal sensor. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供适用于氧传感器的异常诊断装置，其中扩散层设置在检测元件的外层部分。解决方案：在施加正的直流电压并检测对应于各个频率的多个阻抗的状态下，将频率（f）不同的多个交流电压施加到检测元件。然后，判断是否存在与这些阻抗的数据的高频侧向低频侧计数的第三圆弧R3对应的数据，根据该判定结果，判断氧传感器正常。使用在正常传感器的情况下和在异常传感器的情况下存在与第三圆弧R3相对应的数据存在差异来判断氧传感器的正常/异常。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2009074884A Element temperature control device of exhaust gas sensor 有权
标题翻译：排气传感器元件温度控制装置
公开(公告)号：JP2009074884A
公开(公告)日：2009-04-09
申请号：JP2007243380
申请日：2007-09-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： AOKI KEIICHIRO
IPC分类号： G01N27/41 , G01N27/26
摘要： PROBLEM TO BE SOLVED: To provide the element temperature control device of an exhaust gas sensor for the purpose of controlling the temperature of a sensor element with high precision, even when initial change in the impedance characteristics is produced, in the sensor element to which high voltage application processing is applied. SOLUTION: The exhaust gas sensor, to which the high-voltage applying processing is applied, is changed by a large amount in the impedance of the sensor element at an initial stage, as compared with an untreated exhaust gas sensor. Initial change in the impedance of the sensor element is made to advance by the thermal stress received by the sensor element. The thermal stress parameter correlated with the heat stress received by the exhaust gas sensor is acquired in order to exclude the effect of the initial change from the control aspect of the temperature of the sensor element, on the basis of the impedance of the sensor element and the thermal history parameter that correlates with the total thermal stress quantity received by the sensor element is calculated, on the basis of the heat stress parameter. The target impedance of the sensor element is corrected so that it becomes large, in accompaniment of the thermal history parameter. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供排气传感器的元件温度控制装置，以便即使在产生阻抗特性的初始变化时也可以高精度地控制传感器元件的温度，在传感器元件施加高压施加处理。解决方案：与未处理的废气传感器相比，在初始阶段，施加高压施加处理的排气传感器在传感器元件的阻抗中大量改变。通过由传感器元件接收的热应力使传感器元件的阻抗的初始变化提前。获取与排气传感器接收的热应力相关的热应力参数，以便基于传感器元件的阻抗和传感器元件的阻抗来排除来自传感器元件的温度的控制方面的初始变化的影响，以及基于热应力参数计算与传感器元件接收的总热应力量相关的热历史参数。根据热历史参数，传感器元件的目标阻抗被校正为使其变大。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2009007991A Heater controller for exhaust gas sensor 有权
标题翻译：用于排气传感器的加热器控制器
公开(公告)号：JP2009007991A
公开(公告)日：2009-01-15
申请号：JP2007169284
申请日：2007-06-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： AOKI KEIICHIRO , IDE NOBUHIRO
IPC分类号： F02D45/00
CPC分类号： F02D41/1494 , F01N2560/20
摘要： PROBLEM TO BE SOLVED: To maintain the accuracy of the output of an exhaust gas sensor irrespective of the physical properties of the fuel used for an engine.
SOLUTION: An oxygen concentration sensor 28 is disposed in the exhaust passage of the engine. The concentration of the alcohol contained in the fuel used for the internal combustion engine is detected. Based on the detected alcoholic concentration, a target impedance is set. The actual impedance of the sensor element of the oxygen concentration sensor 28 is detected. The heater output of the exhaust gas sensor is so controlled that the actual impedance matches the target impedance.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了保持排气传感器的输出的精度，而与用于发动机的燃料的物理性质无关。解决方案：氧浓度传感器28设置在发动机的排气通道中。检测用于内燃机的燃料中所含的醇的浓度。基于检测到的酒精浓度，设定目标阻抗。检测氧浓度传感器28的传感器元件的实际阻抗。废气传感器的加热器输出被如此控制，使得实际阻抗与目标阻抗匹配。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008191112A Control apparatus for gas sensor 有权
标题翻译：气体传感器控制装置
公开(公告)号：JP2008191112A
公开(公告)日：2008-08-21
申请号：JP2007028575
申请日：2007-02-07
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： AOKI KEIICHIRO
IPC分类号： G01N27/41
CPC分类号： G05D23/19 , F02D41/1494 , F02D2041/2048
摘要： PROBLEM TO BE SOLVED: To provide a control apparatus for gas sensors capable of preventing the occurrence of element breakage of sensor elements due to water damage, controlling an air-fuel ratio at an early stage, and therefore reducing exhaust emissions at an early stage. SOLUTION: An ECU 1 controls an A/F sensor 23 arranged in an exhaust system 20 of an internal combustion engine 50 and capable of generating current output according to the concentration of oxygen in exhaust by the application of a voltage and generating voltage output according to the concentration of oxygen in exhaust by a concentration difference of oxygen in contact with a pair of electrodes. The ECU 1 is provided with a specific output detection means for detecting voltage output from the A/F sensor 23 when moisture has adhered to a wall surface of an exhaust port 52b or a wall surface of an exhaust passage in the vicinity of the A/F sensor 23 and when an electricity passage control means for passing electricity while restricting the amount of passage of electricity passes electricity at least through the heater while restricting its amount of passage of electricity. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：为了提供一种能够防止由于水损坏而导致的传感器元件断裂发生的气体传感器的控制装置，在早期控制空燃比，因此减少了在早期。解决方案：ECU1控制布置在内燃机50的排气系统20中的A / F传感器23，能够通过施加电压和发电电压，根据排气中的氧浓度产生电流输出根据排气中的氧浓度与一对电极接触的氧浓度差输出。 ECU 1设置有特定的输出检测装置，用于当水分附着到排气口52b的壁面或排气通道的壁面附近时，检测从A / F传感器23输出的电压， F传感器23，并且当限制电力通过的电力通过控制装置至少通过加热器通电而限制其通过电量时。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2008095662A Air-fuel ratio control device 有权
标题翻译：空燃比比控制装置
公开(公告)号：JP2008095662A
公开(公告)日：2008-04-24
申请号：JP2006281647
申请日：2006-10-16
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： AOKI KEIICHIRO
IPC分类号： F02D41/04 , F02D19/08 , F02D41/02 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To determine fuel properties without installing an exclusive fuel sensor in an internal combustion engine capable of using fuel having different fuel properties.
SOLUTION: This air-fuel ratio control device controls an air-fuel ratio of the internal combustion engine capable of using gasoline and fuel other than the gasoline as the fuel. The air-fuel ratio control device can determine the fuel properties of the fuel used in the internal combustion engine in accordance with a sensor output of an air-fuel ratio sensor. During the determination of the fuel properties, a property determination time air-fuel ratio control means controls the air-fuel ratio of the internal combustion engine to be a target air-fuel ratio, and air-fuel ratio control in accordance with the determined fuel properties is performed based on the sensor output of the air-fuel ratio sensor detected during the application of a positive voltage after the completion of fuel property determination.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了确定燃料性能，而不需要在能够使用具有不同燃料特性的燃料的内燃机中安装专用燃料传感器。解决方案：该空燃比控制装置控制能够使用除了汽油之外的汽油和燃料的内燃机的空燃比作为燃料。空燃比控制装置可以根据空燃比传感器的传感器输出来确定内燃机中使用的燃料的燃料特性。在确定燃料特性时，性能确定时间空燃比控制装置将内燃机的空燃比控制为目标空燃比，并且根据确定的燃料进行空燃比控制基于在完成燃料特性确定之后在施加正电压期间检测到的空燃比传感器的传感器输出执行特性。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007078473A Gas sensor 审中-公开
标题翻译：气体传感器
公开(公告)号：JP2007078473A
公开(公告)日：2007-03-29
申请号：JP2005265635
申请日：2005-09-13
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： AOKI KEIICHIRO
IPC分类号： G01N27/409
摘要： PROBLEM TO BE SOLVED: To provide a gas sensor capable of reducing the effects due to the air infiltrating through a sealing part to the utmost to detect the concentration of oxygen in an exhaust gas with high accuracy, by solving the problem wherein air is infiltrated from the atmosphere side by the thermal deterioration of a sealing part caused by thermal factor from a mounting place or the lowering of caulking torque in conventional O 2 sensors, and the detected concentration of oxygen becomes rather high. SOLUTION: The gas sensor being the O 2 sensor is equipped with the annular housing 11 mounted airtightly in the opening part formed to a partition wall for partitioning detection atmosphere, a solid electrolyte 14 integrally mounted in the housing 11 and formed into a cylindrical form, of which the leading end is fronted to the detection atmosphere, the first electrode layer 17 formed to the inside surface of the solid electrolyte 14, the second electrode layer 20, formed on the leading end part of the outside surface of the solid electrolyte 14 so as to be exposed to the detection atmosphere, the lead layer 22 continuing to the electrode layer 20, and the protective layer 24, formed to the outside surface of the solid electrolyte 14 so as to cover the second electrode layer 20 and the lead layer 22. The material, thickness or the density of the protective layer 24 are adjusted. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种气体传感器，其能够通过密封部分减少由于空气渗入的影响，以便以高精度检测排气中的氧浓度，通过解决空气中的问题通过由安装场所的热因素引起的密封部件的热劣化或常规O 2 传感器中的铆接扭矩的降低而从大气层渗透，并且检测到的氧浓度变得相当高。
解决方案：作为O 2 传感器的气体传感器配备有气密地安装在形成于用于分隔检测气氛的分隔壁的开口部中的环形壳体11，固体电解质14一体地安装在壳体11形成为前端朝向检测气氛的圆筒形状，形成在固体电解质14的内表面的第一电极层17，形成在前端部的第二电极层20 固体电解质14的外表面暴露于检测气氛中，导电层22继续到电极层20，保护层24形成在固体电解质14的外表面上以覆盖第二电极层20和引线层22.调整保护层24的材料，厚度或密度。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2007009845A Air-fuel ratio controller of internal combustion engine 审中-公开
标题翻译：内燃机空燃比控制器
公开(公告)号：JP2007009845A
公开(公告)日：2007-01-18
申请号：JP2005193911
申请日：2005-07-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： AOKI KEIICHIRO
IPC分类号： F02D45/00 , F02D41/14 , G01N27/409
摘要： PROBLEM TO BE SOLVED: To calculate an accurate sensor output by correcting the deviation of the output due to the leak of oxygen from the gas seal part of an exhaust gas sensor and perform an air-fuel ratio control based on a calculated value. SOLUTION: In this air-fuel ratio controller of an internal combustion engine, the air-fuel ratio is controlled based on the output of the exhaust gas sensor installed in the exhaust route of an internal combustion engine and detecting the air-fuel ratio of exhaust gases. The air-fuel ratio controller estimates the temperature of the gas seal part of the exhaust gas sensor and, based on that temperature, predicts the deviation of the output of the sensor due to the leak of a reference gas occurring at the gas seal part. A correction value for correcting the deviation of the output of the sensor is obtained to reflect it on a control to control the air-fuel ratio of the internal combustion engine. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了通过校正来自排气传感器的气体密封部分的氧气泄漏的输出偏差来计算精确的传感器输出，并且基于计算值执行空燃比控制。解决方案：在内燃机的该空燃比控制器中，基于安装在内燃机的排气路径中的排气传感器的输出来控制空燃比，并且检测空燃比废气比例。空燃比控制器估计排气传感器的气体密封部分的温度，并且基于该温度预测由于在气体密封部分处发生的参考气体的泄漏而导致的传感器的输出的偏差。获得用于校正传感器的输出偏差的校正值，以反映在控制内燃机的空燃比的控制上。版权所有（C）2007，JPO＆INPIT

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