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1. 发明公开

EP3407059A1 GAS SENSOR CONTROL DEVICE 有权
公开(公告)号：EP3407059A1
公开(公告)日：2018-11-28
申请号：EP18173582.0
申请日：2018-05-22
申请人： DENSO CORPORATION
发明人： KOYABU, Tadakatsu , KAWASE, Tomoo , MURAYAMA, Yuki , KAYAMA, Ryozo , HASEGAWA, Akari , SHIMIZU, Shoki
IPC分类号： G01N27/417 , G01N27/419
CPC分类号： G01N27/4163 , F01N11/007 , G01M15/104 , G01N27/4065 , G01N27/4075 , G01N27/409 , G01N27/41 , G01N27/4175 , G01N27/419
摘要： In a gas sensor, a pump cell adjusts a concentration of oxygen in a gas chamber based of a pump cell supply voltage. A sensor cell detects a concentration of a specific gas in a detection target gas after the pump cell has adjusted the concentration of oxygen. In a sensor control unit, a voltage switching part adjusts the pump cell supply voltage to be supplied to the pump cell. A pump cell output control part adjusts a variation range of a pump cell output current of the pump cell before and after a voltage switching process of the pump cell supply voltage to be within a predetermined variation range. A deteriorated state detection part detects a deteriorated state ratio of the sensor cell based on variation of an output current of the sensor cell due to the voltage switching process performed by the voltage switching part.

2. 发明授权

EP3092481B1 VERFAHREN UND VORRICHTUNG ZUR ÜBERWACHUNG DER FETTGAS-MESSFÄHIGKEIT EINER ABGAS-SONDE 有权
公开(公告)号：EP3092481B1
公开(公告)日：2018-07-25
申请号：EP14809793.4
申请日：2014-12-03
申请人： Robert Bosch GmbH
发明人： REINHARDT, Goetz , BUCHHOLZ, Martin
IPC分类号： G01N27/406 , G01N27/417
CPC分类号： G01N27/4175 , G01N27/4065 , G01N27/4067 , G01N27/409 , G01N27/41 , G01N27/419

3. 发明授权

EP3006930B1 GAS SENSOR CONTROL APPARATUS 有权
标题翻译：气体传感器控制装置
公开(公告)号：EP3006930B1
公开(公告)日：2018-03-21
申请号：EP14807068.3
申请日：2014-06-04
申请人： DENSO CORPORATION
发明人： AKIMOTO, Katsuhide , NAKANO, Shuuichi , FUKUDA, Yushi , FUJII, Tomofumi , MASUKO, Takahito , KUMAZAKI, Toshihide
IPC分类号： F02D41/14 , F02D41/22 , G01N27/26 , G01N27/417
CPC分类号： G01N27/4163 , F02D41/1454 , F02D41/222 , G01N27/4065 , G01N27/41 , G01N27/4175 , Y02T10/40
摘要： A sensor element 10 of an A/F sensor AS has a solid electrolyte layer 11, a first electrode 15 arranged on one side of the solid electrolyte layer 11 so as to be exposed to the exhaust gas of an internal combustion engine, and a second electrode 16 arranged on the other side of the solid electrolyte layer 11 so as to face an atmospheric air chamber 18. The sensor element 10 generates a sensor output according to the oxygen concentration in the exhaust gas. A microcomputer 20 supplies oxygen to the first electrode 15 side from the second electrode 16 side via the solid electrolyte layer 11 by applying a predetermined voltage between the pair of electrodes 15 and 16 of the sensor element 10. Moreover, the microcomputer 20 determines a crack abnormality of the solid electrolyte layer 11 based on electric current between the pair of electrodes 15 and 16 which is generated with start of the oxygen supply.

4. 发明公开

EP3293516A1 CONCENTRATION COMPUTATION APPARATUS 有权转让
标题翻译：浓度计算装置
公开(公告)号：EP3293516A1
公开(公告)日：2018-03-14
申请号：EP17189261.5
申请日：2017-09-04
申请人： NGK Spark Plug Co., Ltd.
发明人： TOMIMATSU, Chihiro , TODA, Satoru , NAKANO, Yoshihiro
IPC分类号： G01N27/406 , G01N27/417 , G01N27/419 , G01N33/00
CPC分类号： G01N27/4065 , G01N27/4067 , G01N27/4074 , G01N27/4075 , G01N27/41 , G01N27/4175 , G01N27/419 , G01N33/0037 , G01N33/0054 , H03H17/0009
摘要： A multi-gas detection apparatus includes a concentration output computation section (404), a concentration computation section (406) and a weighted average computation section (405, 407, 408). The concentration computation section (406) computes the concentration of ammonia and the concentration of NO 2 on the basis of a first pumping current and first and second ammonia electromotive forces. The concentration output computation section (404) and the concentration computation section (406) computes the concentration of NOx on the basis of the computed ammonia concentration, the computed NO 2 concentration, and second pumping current. The weighted average computation section (405) decreases the response speed of the first pumping current, which changes in accordance with the oxygen concentration, by digital filter processing. The weighted average computation sections (407, 408) decrease the response speeds of the first and second ammonia electromotive forces, which change in accordance with the ammonia concentration and the NO 2 concentration, by digital filter processing.
摘要翻译：多气体检测装置包括浓度输出计算部（404），浓度计算部（406）和加权平均计算部（405,407,408）。浓度计算部分（406）基于第一泵浦电流和第一和第二氨电动势来计算氨的浓度和NO 2的浓度。浓度输出计算部分（404）和浓度计算部分（406）基于计算的氨浓度，计算的NO 2浓度和第二泵送电流来计算NO x的浓度。加权平均计算部分（405）通过数字滤波处理来降低根据氧浓度而变化的第一泵浦电流的响应速度。加权平均计算部分（407,408）通过数字滤波处理降低根据氨浓度和NO2浓度而变化的第一和第二氨电动势的响应速度。

5. 发明公开

EP3006930A1 GAS SENSOR CONTROL DEVICE 有权
标题翻译： GASSENSORSTEUERUNGSVORRICHTUNG
公开(公告)号：EP3006930A1
公开(公告)日：2016-04-13
申请号：EP14807068.3
申请日：2014-06-04
申请人： DENSO CORPORATION
发明人： AKIMOTO, Katsuhide , NAKANO, Shuuichi , FUKUDA, Yushi , FUJII, Tomofumi , MASUKO, Takahito , KUMAZAKI, Toshihide
IPC分类号： G01N27/26 , G01N27/41
CPC分类号： G01N27/4163 , F02D41/1454 , F02D41/222 , G01N27/4065 , G01N27/41 , G01N27/4175 , Y02T10/40
摘要： A sensor element 10 of an A/F sensor AS has a solid electrolyte layer 11, a first electrode 15 arranged on one side of the solid electrolyte layer 11 so as to be exposed to the exhaust gas of an internal combustion engine, and a second electrode 16 arranged on the other side of the solid electrolyte layer 11 so as to face an atmospheric air chamber 18. The sensor element 10 generates a sensor output according to the oxygen concentration in the exhaust gas. A microcomputer 20 supplies oxygen to the first electrode 15 side from the second electrode 16 side via the solid electrolyte layer 11 by applying a predetermined voltage between the pair of electrodes 15 and 16 of the sensor element 10. Moreover, the microcomputer 20 determines a crack abnormality of the solid electrolyte layer 11 based on electric current between the pair of electrodes 15 and 16 which is generated with start of the oxygen supply.
摘要翻译： A / F传感器AS的传感器元件10具有固体电解质层11，布置在固体电解质层11的一侧以暴露于内燃机的排气的第一电极15，电极16布置在固体电解质层11的另一侧，以便与大气空气室18相对。传感器元件10根据废气中的氧气浓度产生传感器输出。微型计算机20通过在传感器元件10的一对电极15和16之间施加预定电压，经由固体电解质层11从第二电极16侧向第一电极15侧供给氧。此外，微计算机20确定裂纹基于在开始供氧时产生的一对电极15和16之间的电流，固体电解质层11的异常。

6. 发明公开

EP2952721A4 CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：EP2952721A4
公开(公告)日：2016-01-27
申请号：EP13873938
申请日：2013-01-29
申请人： TOYOTA MOTOR CO LTD
发明人： HAYASHITA GO , AOKI KEIICHIRO
IPC分类号： F02D45/00 , F02D41/14 , G01N27/41
CPC分类号： F02D41/1455 , F02D41/0235 , F02D41/1401 , F02D41/1441 , F02D41/1456 , F02D41/1473 , G01N27/41
摘要： This control device for an internal combustion engine is equipped with: an air/fuel ratio sensor (41) provided to the exhaust passage of an internal combustion engine; and an engine control device that controls the internal combustion engine on the basis of the sensor output current of the air/fuel ratio sensor. The air/fuel ratio sensor is equipped with: a gas chamber (51) to be measured, into which exhaust gas flows; a reference cell (61) for which the reference cell output current varies according to the air/fuel ratio of the exhaust gas inside the gas chamber to be measured; and a pump cell (60) that, according to the pump current, pumps oxygen into or out of the exhaust gas in the gas chamber to be measured. The reference cell is configured so that the applied voltage, at which the reference cell output current reaches zero, varies according to the air/fuel ratio of the exhaust gas in the gas chamber to be measured. The applied voltage in the reference cell is fixed at a constant voltage, said constant voltage being set to a voltage different to the voltage at which the reference cell output current reaches zero when the air/fuel ratio of the exhaust gas in the gas chamber to be measured is the stoichiometric air/fuel ratio.

7. 发明公开

EP2918996A1 Method for performing processing on gas sensor 有权
标题翻译： Verfahren zur Regenerationverarbeitung eines Gassensors
公开(公告)号：EP2918996A1
公开(公告)日：2015-09-16
申请号：EP15158089.1
申请日：2015-03-06
申请人： NGK Insulators, Ltd.
发明人： Ishikawa, Tetsuya , Sakakibara, Kazuhito , Kageyama, Shota
IPC分类号： G01N27/407 , G01N27/417
CPC分类号： G01N27/41 , G01N27/407 , G01N27/4076 , G01N27/417
摘要： A sensor element (101) comprising an oxygen ion conductive solid electrolyte. Reverse voltage application processing is achieved by electrically connecting the reference electrode (42) formed on an internal surface of the sensor element to a negative terminal of a DC power supply (92), and electrically connecting the external pumping electrode (23) to a positive terminal of the DC power supply (92). Oxides derived from the reference electrode are thus reduced, the reference electrode is refreshed and oxygen is discharged outside the sensor element.
摘要翻译：一种包含氧离子导电固体电解质的传感器元件（101）。通过将形成在传感器元件的内表面上的参考电极（42）电连接到直流电源（92）的负极端子，并将外部泵浦电极（23）电连接到正极直流电源（92）的端子。因此，从参考电极衍生的氧化物减少，参考电极被刷新，氧被排出到传感器元件外部。

8. 发明授权

EP2912447B1 VERFAHREN UND VORRICHTUNG ZUR DIAGNOSE DES LUFTREFERENZKANALS EINER BREITBAND-LAMBDASONDE 失效
标题翻译：用于诊断宽带LAMBDASTER空气参考通道的方法和装置
公开(公告)号：EP2912447B1
公开(公告)日：2018-02-21
申请号：EP13771132.1
申请日：2013-09-30
申请人： Robert Bosch GmbH
发明人： LEDERMANN, Bernhard
IPC分类号： G01N27/417 , G01N27/419
CPC分类号： G01N27/4175 , G01N27/4065 , G01N27/409 , G01N27/41 , G01N27/419 , G01N33/0006

9. 发明授权

EP2492676B1 Sensor und Verfahren zum Detektieren von Partikeln in einem Gasstrom 有权
标题翻译：用于检测气流中的颗粒的传感器和方法
公开(公告)号：EP2492676B1
公开(公告)日：2017-11-22
申请号：EP12153375.6
申请日：2012-01-31
申请人： Robert Bosch GmbH
发明人： Seiler, Thomas , Peters, Christoph
IPC分类号： G01N27/41 , G01N15/06
CPC分类号： G01N15/0656 , F01N2560/05 , G01N15/0606 , G01N27/41

10. 发明公开

EP3194949A1 INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：内燃机
公开(公告)号：EP3194949A1
公开(公告)日：2017-07-26
申请号：EP15754043.6
申请日：2015-07-24
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： KATO, Akira , HAYASHITA, Go
IPC分类号： G01N27/406 , G01N27/41 , G01N15/10
CPC分类号： G01N15/0656 , G01N15/0606 , G01N27/4067 , G01N27/409 , G01N27/41
摘要： An internal combustion engine includes an ECU, an A/F sensor being active at a first temperature lower than a PM combustion temperature and set in advance, and a heater to heat the A/F sensor to a second temperature equal to or higher than the PM combustion temperature and set in advance. The ECU detects PM based on a difference between an output value of the A/F sensor at the first temperature and an output value of the A/F sensor at the second temperature. The ECU may perform determining that a PM accumulation amount is smaller than a reference amount when the output value is higher than a threshold value, and that the PM accumulation amount is equal to or larger than the reference amount when the output value is a value equal to or smaller than the threshold value.
摘要翻译：内燃机包括ECU，在低于PM燃烧温度且预先设定的第一温度下有效的A / F传感器以及用于将A / F传感器加热到等于或高于第二温度的第二温度的加热器 PM燃烧温度并预先设定。 ECU基于第一温度下的A / F传感器的输出值与第二温度下的A / F传感器的输出值之间的差来检测PM。当输出值高于阈值时，ECU可执行确定PM累积量小于参考量，并且当输出值是等于值时，PM累积量等于或大于参考量达到或小于阈值。

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