专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09261007B2 Catalyst-degradation detection device 有权
标题翻译：催化剂降解检测装置
公开(公告)号：US09261007B2
公开(公告)日：2016-02-16
申请号：US14350685
申请日：2011-10-24
申请人： Keiichiro Aoki , Go Hayashita , Takanori Sasaki
发明人： Keiichiro Aoki , Go Hayashita , Takanori Sasaki
IPC分类号： F01N11/00 , F02D41/14 , F01N3/10
CPC分类号： F01N11/007 , F01N3/101 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2900/0416 , F01N2900/1624 , F02D41/1441 , F02D41/1456 , Y02T10/22 , Y02T10/47
摘要： An oxygen amount (an oxygen storage amount OSA) stored by metal cerium during a storage cycle is obtained based on an output value of an A/F sensor in a time period immediately before an exhaust air-fuel ratio (a downstream side A/F) detected by the A/F sensor shifts to a lean region, and degradation relating to OSC of the three-way catalyst is detected. In the storage cycle, a target air-fuel ratio is set so that an air-fuel ratio of exhaust emission flowing into an S/C changes from rich to lean. Therefore, the downstream side A/F shifts from stoichiometry to the lean region at a time after reaching stoichiometry. When the three-way catalyst degrades, the downstream side A/F shifts to the lean region from stoichiometry at a time. Therefore, the calculated oxygen storage amount OSA becomes extremely smaller as compared with that at a normal time.
摘要翻译：基于A / F传感器在排气空燃比之前的时间段（下游侧A / F）中的输出值，获得在储存循环期间由金属铈储存的氧量（储氧量OSA））移动到贫气区域，并且检测到与三元催化剂的OSC相关的降解。在存储循环中，设定目标空燃比，使流入S / C的排气的空燃比从浓到稀。因此，在达到化学计量之后的一段时间，下游侧A / F从化学计量转移到稀薄区域。当三元催化剂劣化时，下游侧A / F一次从化学计量转移到贫的区域。因此，与常规时间相比，计算出的氧气存储量OSA变得非常小。

2. 发明申请

US20130276431A1 OXYGEN SENSOR AND OXYGEN SENSOR CONTROL DEVICE 有权
标题翻译：氧传感器和氧传感器控制装置
公开(公告)号：US20130276431A1
公开(公告)日：2013-10-24
申请号：US13993734
申请日：2010-12-24
申请人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
发明人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
IPC分类号： F01N11/00
CPC分类号： F01N11/007 , F02D41/123 , F02D41/1454 , F02D41/1476 , F02D2041/2051 , G01N27/407
摘要： In this invention, an EMF oxygen sensor is subjected to an activation process applying unidirectional voltage between an atmosphere electrode and an exhaust electrode thereof. A control device controlling the oxygen sensor in which a voltage was applied with the atmosphere electrode being positive, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode positive, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio of the internal combustion engine was rich relative to the theoretical air-fuel ratio. Conversely, A control device controlling the oxygen sensor in which a voltage was applied to make the atmosphere electrode negative, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode negative, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio was lean relative to the theoretical air-fuel ratio.
摘要翻译：在本发明中，EMF氧传感器在气氛电极和排气电极之间进行施加单向电压的激活处理。控制在气氛电极中施加电压的氧传感器的控制装置为正，另外在电极之间施加单向电压，使得气氛电极为正，例如当氧气传感器在空气中的环境下使用时内燃机的燃料比相对于理论空燃比是丰富的。相反，控制其中施加电压以使气氛电极为负的氧传感器的控制装置另外在电极之间施加单向电压，以使气氛电极为负值，例如当氧传感器在其中空燃比相当于理论空燃比。

3. 发明授权

US09732657B2 Oxygen sensor and oxygen sensor control device 有权
公开(公告)号：US09732657B2
公开(公告)日：2017-08-15
申请号：US13993734
申请日：2010-12-24
申请人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
发明人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
IPC分类号： F01N11/00 , G01N27/407 , F02D41/12 , F02D41/14 , F02D41/20
CPC分类号： F01N11/007 , F02D41/123 , F02D41/1454 , F02D41/1476 , F02D2041/2051 , G01N27/407
摘要： In this invention, an EMF oxygen sensor is subjected to an activation process applying unidirectional voltage between an atmosphere electrode and an exhaust electrode thereof. A control device controlling the oxygen sensor in which a voltage was applied with the atmosphere electrode being positive, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode positive, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio of the internal combustion engine was rich relative to the theoretical air-fuel ratio. Conversely, a control device controlling the oxygen sensor in which a voltage was applied to make the atmosphere electrode negative, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode negative, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio was lean relative to the theoretical air-fuel ratio.

4. 发明申请

US20140250993A1 CATALYST-DEGRADATION DETECTION DEVICE 有权
标题翻译：催化降解检测装置
公开(公告)号：US20140250993A1
公开(公告)日：2014-09-11
申请号：US14350685
申请日：2011-10-24
申请人： Keiichiro Aoki , Go Hayashita , Takanori Sasaki
发明人： Keiichiro Aoki , Go Hayashita , Takanori Sasaki
IPC分类号： F01N11/00
CPC分类号： F01N11/007 , F01N3/101 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2900/0416 , F01N2900/1624 , F02D41/1441 , F02D41/1456 , Y02T10/22 , Y02T10/47
摘要： An oxygen amount (an oxygen storage amount OSA) stored by metal cerium during a storage cycle is obtained based on an output value of an A/F sensor in a time period immediately before an exhaust air-fuel ratio (a downstream side A/F) detected by the A/F sensor shifts to a lean region, and degradation relating to OSC of the three-way catalyst is detected. In the storage cycle, a target air-fuel ratio is set so that an air-fuel ratio of exhaust emission flowing into an S/C changes from rich to lean. Therefore, the downstream side A/F shifts from stoichiometry to the lean region at a time after reaching stoichiometry. When the three-way catalyst degrades, the downstream side A/F shifts to the lean region from stoichiometry at a time. Therefore, the calculated oxygen storage amount OSA becomes extremely smaller as compared with that at a normal time.
摘要翻译：基于A / F传感器在排气空燃比之前的时间段（下游侧A / F）中的输出值，获得在储存循环期间由金属铈储存的氧量（储氧量OSA））移动到贫气区域，并且检测到与三元催化剂的OSC相关的降解。在存储循环中，设定目标空燃比，使流入S / C的排气的空燃比从浓到稀。因此，在达到化学计量之后的一段时间，下游侧A / F从化学计量转移到稀薄区域。当三元催化剂劣化时，下游侧A / F一次从化学计量转移到贫的区域。因此，与常规时间相比，计算出的氧气存储量OSA变得非常小。

5. 发明申请

US20140075924A1 CORRECTION DEVICE FOR AIR/FUEL RATIO SENSOR 有权
标题翻译：空气/燃油比传感器校正装置
公开(公告)号：US20140075924A1
公开(公告)日：2014-03-20
申请号：US14114770
申请日：2011-05-19
申请人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
发明人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
IPC分类号： F01N3/18
CPC分类号： F02D41/2474 , F01N3/18 , F02D41/0235 , F02D41/1441 , F02D41/1456 , F02D41/2438 , F02D41/2441 , F02D41/2454
摘要： A correction device for an air/fuel ratio sensor in the present invention, the sensor issuing an output according to an air/fuel ratio and installed on the downstream from catalyst of the exhaust passage, has air/fuel ratio control means for controlling an air/fuel ratio of an exhaust gas on the upstream side from a catalyst to switch between a rich air/fuel ratio which is richer and a lean air/fuel ratio which is leaner than a stoichiometric air/fuel ratio. Moreover, correction means for correcting an output of the sensor in accordance with a difference between the output of the sensor during a predetermined period during air/fuel ratio control by the air/fuel ratio control means, and a reference output corresponding to a stoichiometric air/fuel ratio, is provided.
摘要翻译：本发明的空气/燃料比传感器的校正装置中，具有空气/燃料比的输出装置，安装在排气通路的催化剂下游的传感器具有空气/燃料比控制装置， /从催化剂上游侧排出的废气的燃料比在富空燃比和比理论空燃比稀的稀空燃比之间切换。此外，根据空气/燃料比控制装置的空气/燃料比控制期间的预定时间段期间传感器的输出之间的差异校正装置以及对应于理论空燃比的参考输出的校正装置 /燃料比。

6. 发明授权

US09163574B2 Sensor characteristic correction device 有权
标题翻译：传感器特征校正装置
公开(公告)号：US09163574B2
公开(公告)日：2015-10-20
申请号：US14006405
申请日：2011-05-24
申请人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
发明人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
IPC分类号： F02D41/24 , F02D41/06 , F02D41/14 , G01M17/00 , G06F19/00
CPC分类号： F02D41/1438 , F02D41/062 , F02D41/1441 , F02D41/1456 , F02D41/2474
摘要： A sensor characteristic correction device is configured to detect a characteristic of a first sensor arranged upstream of a catalyst 6 in an exhaust passage 4 of an internal combustion engine 2, and a characteristic of a second sensor that is an air-fuel sensor 12 arranged downstream of the catalyst 6, to calculate a first air-fuel ratio based on the characteristic of the first sensor, and calculates a second air-fuel ratio based on the characteristic of the second sensor, to detect, when the catalyst 6 is in an inactive state after start-up of the internal combustion engine 2, a difference between the first characteristic and the second characteristic or a difference between the first air-fuel ratio and the second air-fuel ratio, and to correct the responsiveness of the first or the second sensor in accordance with the difference.
摘要翻译：传感器特性校正装置被配置为检测布置在内燃机2的排气通道4中的催化剂6上游的第一传感器的特性，以及作为布置在下游的空气 - 燃料传感器12的第二传感器的特性，以基于第一传感器的特性来计算第一空燃比，并且基于第二传感器的特性计算第二空燃比，以在催化剂6处于非活动状态时检测内燃机2启动后的状态，第一特性和第二特性之间的差异，或第一空燃比与第二空燃比之间的差异，并且校正第一或第二空燃比的响应性第二传感器根据差异。

7. 发明授权

US09347352B2 Correction device for air/fuel ratio sensor 有权
标题翻译：空气/燃料比传感器校正装置
公开(公告)号：US09347352B2
公开(公告)日：2016-05-24
申请号：US14114770
申请日：2011-05-19
申请人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
发明人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
IPC分类号： F01N3/00 , F01N3/18 , F02D41/14 , F02D41/02 , F02D41/24
CPC分类号： F02D41/2474 , F01N3/18 , F02D41/0235 , F02D41/1441 , F02D41/1456 , F02D41/2438 , F02D41/2441 , F02D41/2454
摘要： A correction device for an air/fuel ratio sensor in the present invention, the sensor issuing an output according to an air/fuel ratio and installed on the downstream from catalyst of the exhaust passage, has air/fuel ratio control means for controlling an air/fuel ratio of an exhaust gas on the upstream side from a catalyst to switch between a rich air/fuel ratio which is richer and a lean air/fuel ratio which is leaner than a stoichiometric air/fuel ratio. Moreover, correction means for correcting an output of the sensor in accordance with a difference between the output of the sensor during a predetermined period during air/fuel ratio control by the air/fuel ratio control means, and a reference output corresponding to a stoichiometric air/fuel ratio, is provided.
摘要翻译：本发明的空气/燃料比传感器的校正装置中，具有空气/燃料比的输出装置，安装在排气通路的催化剂下游的传感器具有空气/燃料比控制装置， /从催化剂上游侧排出的废气的燃料比在富空燃比和比理论空燃比稀的稀空燃比之间切换。此外，根据空气/燃料比控制装置的空气/燃料比控制期间的预定时间段期间传感器的输出之间的差异校正装置以及对应于理论空燃比的参考输出的校正装置 /燃料比。

8. 发明授权

US09334776B2 Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：US09334776B2
公开(公告)日：2016-05-10
申请号：US14429143
申请日：2012-09-20
申请人： Go Hayashita , Takanori Sasaki , Keiichiro Aoki
发明人： Go Hayashita , Takanori Sasaki , Keiichiro Aoki
IPC分类号： F01N3/18 , F01N3/08 , F02D41/22 , F01N3/10 , F01N11/00 , F02D41/24 , F02D41/04 , F02D41/12 , F02D41/14 , F02D41/02
CPC分类号： F01N3/0842 , F01N3/0835 , F01N3/0864 , F01N3/101 , F01N3/18 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2570/14 , F01N2570/16 , F01N2900/0416 , F01N2900/1402 , F01N2900/1624 , F02D41/0295 , F02D41/042 , F02D41/123 , F02D41/1408 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D41/1495 , F02D41/222 , F02D41/2474 , Y02T10/22 , Y02T10/40 , Y02T10/47 , Y02T10/48
摘要： In an exhaust path of an internal combustion engine, a catalyst, a first air-fuel ratio sensor installed upstream thereof, and a second air-fuel ratio sensor installed downstream thereof are disposed. An air-fuel ratio of the engine is controlled to a rich air-fuel ratio or a lean air-fuel ratio. In a state that is determined as a state where the catalyst stores oxygen to an upper limit after the air-fuel ratio is switched to the lean air-fuel ratio from the rich air-fuel ratio, or a state where the catalyst releases oxygen to a lower limit after the air-fuel ratio is switched to the rich air-fuel ratio from the lean air-fuel ratio, a first output from the first air-fuel ratio sensor, and a second output from the second air-fuel ratio sensor are detected and based on a difference therebetween the output of the first air-fuel ratio sensor is corrected.
摘要翻译：在内燃机的排气路径中，配置有催化剂，安装在其上游的第一空燃比传感器和安装在其内的第二空燃比传感器。将发动机的空燃比控制在浓空燃比或稀空燃比。在从富空燃比将空燃比从稀空燃比转换为稀空燃比后，将催化剂储存在上限状态的状态或催化剂释放氧的状态为将空燃比从稀空燃比转换为浓空燃比，从第一空燃比传感器的第一输出和第二空燃比传感器的第二输出的下限并且基于它们之间的差异来校正第一空燃比传感器的输出。

9. 发明申请

US20150247434A1 CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机控制装置
公开(公告)号：US20150247434A1
公开(公告)日：2015-09-03
申请号：US14429143
申请日：2012-09-20
申请人： Go HAYASHITA , Takanori SASAKI , Keiichiro AOKI
发明人： Go Hayashita , Takanori Sasaki , Keiichiro Aoki
IPC分类号： F01N3/08 , F01N11/00 , F01N3/18
CPC分类号： F01N3/0842 , F01N3/0835 , F01N3/0864 , F01N3/101 , F01N3/18 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2570/14 , F01N2570/16 , F01N2900/0416 , F01N2900/1402 , F01N2900/1624 , F02D41/0295 , F02D41/042 , F02D41/123 , F02D41/1408 , F02D41/1441 , F02D41/1454 , F02D41/1456 , F02D41/1495 , F02D41/222 , F02D41/2474 , Y02T10/22 , Y02T10/40 , Y02T10/47 , Y02T10/48
摘要： In an exhaust path of an internal combustion engine, a catalyst, a first air-fuel ratio sensor installed upstream thereof, and a second air-fuel ratio sensor installed downward thereof are disposed. An air-fuel ratio of the engine is controlled to a rich air-fuel ratio or a lean air-fuel ratio. In a state that is determined as a state where the catalyst stores oxygen to an upper limit after the air-fuel ratio is switched to the lean air-fuel ratio from the rich air-fuel ratio, or a state where the catalyst releases oxygen to a lower limit after the air-fuel ratio is switched to the rich air-fuel ratio from the lean air-fuel ratio, a first output from the first air-fuel ratio sensor, and a second output from the second air-fuel ratio sensor are detected and based on a difference therebetween the output of the first air-fuel ratio sensor is corrected.
摘要翻译：在内燃机的排气路径中，配置有催化剂，安装在其内部的第一空燃比传感器和向下安装的第二空燃比传感器。将发动机的空燃比控制在浓空燃比或稀空燃比。在从富空燃比将空燃比从稀空燃比转换为稀空燃比后，将催化剂储存在上限状态的状态或催化剂释放氧的状态为将空燃比从稀空燃比转换为浓空燃比，从第一空燃比传感器的第一输出和第二空燃比传感器的第二输出的下限并且基于它们之间的差异来校正第一空燃比传感器的输出。

10. 发明申请

US20140005882A1 SENSOR CHARACTERISTIC CORRECTION DEVICE 有权
标题翻译：传感器特征校正装置
公开(公告)号：US20140005882A1
公开(公告)日：2014-01-02
申请号：US14006405
申请日：2011-05-24
申请人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
发明人： Keiichiro Aoki , Takanori Sasaki , Go Hayashita
IPC分类号： F02D41/14
CPC分类号： F02D41/1438 , F02D41/062 , F02D41/1441 , F02D41/1456 , F02D41/2474
摘要： A sensor characteristic correction device is configured to detect a characteristic of a first sensor arranged upstream of a catalyst 6 in an exhaust passage 4 of an internal combustion engine 2, and a characteristic of a second sensor that is an air-fuel sensor 12 arranged downstream of the catalyst 6, to calculate a first air-fuel ratio based on the characteristic of the first sensor, and calculates a second air-fuel ratio based on the characteristic of the second sensor, to detect, when the catalyst 6 is in an inactive state after start-up of the internal combustion engine 2, a difference between the first characteristic and the second characteristic or a difference between the first air-fuel ratio and the second air-fuel ratio, and to correct the responsiveness of the first or the second sensor in accordance with the difference.
摘要翻译：传感器特性校正装置被配置为检测布置在内燃机2的排气通道4中的催化剂6上游的第一传感器的特性，以及作为布置在下游的空气 - 燃料传感器12的第二传感器的特性，以基于第一传感器的特性来计算第一空燃比，并且基于第二传感器的特性计算第二空燃比，以在催化剂6处于非活动状态时检测内燃机2启动后的状态，第一特性和第二特性之间的差异，或第一空燃比与第二空燃比之间的差异，并且校正第一或第二空燃比的响应性第二传感器根据差异。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式