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41. 发明公开

EP2952720A1 CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机控制装置
公开(公告)号：EP2952720A1
公开(公告)日：2015-12-09
申请号：EP13873710.1
申请日：2013-01-29
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： HAYASHITA, Go , AOKI, Keiichiro
IPC分类号： F02D45/00 , G01N27/41
摘要： This control device for an internal combustion engine is equipped with: an air/fuel ratio sensor; and an engine control device that controls the internal combustion engine according to the output of the air/fuel ratio sensor. The air/fuel ratio sensor is configured so that the applied voltage at which the output current reaches zero varies according to the exhaust air/fuel ratio, and the output current increases if the applied voltage is increased at the air/fuel ratio sensor when the exhaust air/fuel ratio is the stoichiometric air/fuel ratio. When the air/fuel ratio of exhaust gas is to be detected by the air/fuel ratio sensor, the applied voltage at the air/fuel ratio sensor is fixed at a constant voltage, said constant voltage being different to the voltage at which the output current reaches zero when the exhaust air/fuel ratio is the stoichiometric air/fuel ratio, and being the voltage at which the output current reaches zero when the exhaust air/fuel ratio is different to the stoichiometric air/fuel ratio. Thus provided is a control device for an internal combustion engine that uses an air/fuel ratio sensor capable of detecting an absolute value for the air/fuel ratio of exhaust gas even if the air/fuel ratio of the exhaust gas is not the stoichiometric air/fuel ratio.
摘要翻译：这种用于内燃机的控制装置配备有：空气/燃料比传感器; 以及根据空燃比传感器的输出来控制内燃机的发动机控制装置。空气/燃料比传感器被构造成使得输出电流达到零的施加电压根据排气空气/燃料比而变化，并且如果在空燃比传感器处施加的电压增加时输出电流增加，排气空燃比是理论空燃比。当要由空燃比传感器检测排气的空燃比时，空燃比传感器的施加电压被固定为恒定电压，所述恒定电压不同于输出电压当排气空燃比为化学计量空燃比时电流达到零，并且当排气空燃比与理论空燃比不同时输出电流达到零的电压。因此，提供一种内燃机的控制装置，即使排气的空燃比不是理论空燃比，也能够使用能够检测排气的空燃比的绝对值的空燃比传感器 /燃料比。

42. 发明公开

EP2784293A1 AIR-FUEL RATIO DETECTION DEVICE AND AIR-FUEL RATIO DETECTION METHOD 无效
标题翻译：装置用于确定空燃比程序对空燃比
公开(公告)号：EP2784293A1
公开(公告)日：2014-10-01
申请号：EP11876060.2
申请日：2011-11-24
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： AOKI, Keiichiro
IPC分类号： F02D41/14 , F01N3/24 , F02D41/20 , F02D43/00 , F02D45/00 , F02M17/08 , G01N27/04 , G01N27/416
CPC分类号： F02D41/22 , F01N3/101 , F01N9/00 , F01N2560/025 , F01N2900/0408 , F01N2900/0416 , F02D41/1441 , F02D41/1456 , F02M17/08 , Y02T10/22 , Y02T10/47
摘要： When an air-fuel ratio detection performed by detecting an output of a downstream sensor (10), which is a limiting-current type air-fuel ratio sensor arranged at a downstream side of a catalyst (6) in an exhaust passage (4) of an internal combustion engine (2), and calculating an air-fuel ratio at the downstream side of the catalyst (6) in accordance with the output, if the output is within a predetermined range including an output corresponding to a theoretical air-fuel ratio, a relationship between the output and an air-fuel ratio that is calculated by calculation means is shifted more to a rich side relative to a correspondence relationship between an output of an upstream sensor (10), which is a similar sensor to the downstream sensor (10) arranged at an upstream side of the catalyst in the exhaust passage (4) of the engine (2), and an air-fuel ratio.
摘要翻译：当在空气 - 燃料比检测时执行通过检测到下游传感器（10），这是在一个排气通道在催化剂（6）的下游侧布置在极限电流式的空燃比传感器的输出（4）内燃机（2），并在雅舞蹈的催化剂（6）与所述输出的下游侧计算在空气 - 燃料比，如果输出在预定的范围，包括在输出对应于理论空燃比内的比，由计算装置计算的输出比之间和到空气 - 燃料的关系更之间在上游传感器（10），所有这些是一个类似的传感器向下游的输出转移到相对浓侧的对应关系传感器（10）在设置于发动机（2）的排气通路（4）的催化剂的上游侧布置，并且在空气 - 燃料比。

43. 发明公开

EP2772636A1 CATALYST-DEGRADATION DETECTION DEVICE 失效
标题翻译：催化剂降解检测装置
公开(公告)号：EP2772636A1
公开(公告)日：2014-09-03
申请号：EP11874733.6
申请日：2011-10-24
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： AOKI, Keiichiro , HAYASHITA, Go , SASAKI, Takanori
IPC分类号： F02D45/00 , F01N3/20 , F02D41/14
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 basis on an output value of an A/F sensor 18 in a time period immediately before an exhaust air-fuel ratio (a downstream side A/F) detected by the A/F sensor 18 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 14 changes from rich to lean. Therefore, the downstream side A/F shifts from stoichiometry to the lean region at a time t 1 after reaching stoichiometry. When the three-way catalyst degrades, the downstream side A/F shifts to the lean region from stoichiometry at a time t 4 . Therefore, the calculated oxygen storage amount OSA becomes extremely smaller as compared with that at a normal time.
摘要翻译：基于在即将排气空燃比（下游侧A / F）之前的时间段内的A / F传感器18的输出值，获得在存储循环期间由金属铈存储的氧量（氧存储量OSA） F）由A / F传感器18检测到的燃料向稀区域转移，检测与三元催化剂的OSC有关的劣化。在该存储循环中，目标空燃比被设定为使得流入S / C14的排气的空燃比从浓变为稀。因此，在达到化学计量之后的时间t1，下游侧A / F从化学计量偏移到贫油区域。当三元催化剂劣化时，在时间t4，下游侧A / F从化学计量偏移到稀区。因此，与通常时相比，计算出的氧吸附量OSA变得非常小。

44. 发明公开

EP2711528A1 CORRECTION DEVICE FOR AIR/FUEL RATIO SENSOR 失效
标题翻译： KORREKTURVORRICHTUNG LUFT-KRAFTSTOFF-VERHÄLTNISSENSOR
公开(公告)号：EP2711528A1
公开(公告)日：2014-03-26
申请号：EP11865664.4
申请日：2011-05-19
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： AOKI, Keiichiro , SASAKI, Takanori , HAYASHITA, Go
IPC分类号： F02D45/00
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 has air/fuel ratio control means for controlling an air/fuel ratio of an exhaust gas on the upstream side from a catalyst (6) installed in an exhaust passage of an internal combustion engine 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, and an air/fuel ratio sensor (12) issuing an output according to the air/fuel ratio of an exhaust gas on the downstream from the catalyst (6) of the exhaust passage. Moreover, correction coefficient calculating means for calculating a correction coefficient for correcting an output of the air/fuel ratio sensor (12) in accordance with a difference between the output of the air/fuel ratio sensor (12) during a predetermined period during which the output of the air/fuel ratio sensor (12) installed on the downstream from the catalyst (6) is equilibrated 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：本发明的空燃比传感器的校正装置具有空气/燃料比控制装置，用于控制从安装在内部的排气通道中的催化剂（6）的上游侧的排气的空燃比内燃机在富余的浓空气/燃料比和比理论空燃比稀的稀空燃比之间切换，空燃比传感器（12）根据空气/燃料比发出输出，在排气通道的催化剂（6）的下游的排气的燃料比。此外，校正系数计算装置，用于根据在空燃比传感器（12）的输出之间的差异来计算用于校正空/燃比传感器（12）的输出的校正系数，安装在催化剂（6）下游的空气/燃料比传感器（12）的输出在由空气/燃料比控制装置进行的空气/燃料比控制期间平衡，并且对应于理论空燃比，被提供。

45. 发明公开

EP2561349A1 BIOFUEL DEGRADATION SENSOR BASED ON FLUORESCENCE MEASUREMENTS 有权
标题翻译：生物燃料分解传感器基于荧光测量
公开(公告)号：EP2561349A1
公开(公告)日：2013-02-27
申请号：EP11727288.0
申请日：2011-04-20
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , Nippon Soken, Inc.
发明人： YOSHIDA, Shuntaro , AMANO, Noriyasu , WAKAO, Kazuhiro , SASAI, Mie , AOKI, Keiichiro
IPC分类号： G01N33/28 , G01N21/33 , G01N21/64
CPC分类号： G01N21/64 , G01N21/643 , G01N33/2829 , G01N33/2852 , G01N33/287 , G01N33/2876
摘要： A sensor that detects a fuel property of a mixed fuel of a biofuel and a hydrocarbon fuel includes: a light emitting device that emits light with a wavelength of 250 ran to 400 run onto the mixed fuel; and a light receiving device that receives light emitted by the mixed fuel under the effect of light from the light emitting device and generates an output corresponding to the received light When the fuel property is determined, in a case where the mixed fuel is irradiated by light with a predetermined wavelength generated due to voltage application to the light emitting device, the light emitted by the mixed fuel is detected by the light receiving device. The fuel property of the mixed fuel is detected according to the detected light

46. 发明授权

EP3336531B1 SULFUR OXIDE DETECTION SYSTEM 失效
公开(公告)号：EP3336531B1
公开(公告)日：2019-11-20
申请号：EP17207493.2
申请日：2017-12-14
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： MATSUDA, Kazuhisa , WAKAO, Kazuhiro , AOKI, Keiichiro
IPC分类号： G01N27/419 , F02D41/00 , G01N33/00 , G01N27/407

47. 发明公开

EP3524804A2 CONTROL SYSTEM OF THE HEATER OF AN EXHAUST GAS SENSOR IN AN INTERNAL COMBUSTION ENGINE PROVIDED WITH A START-STOP FUNCTION 审中-公开
公开(公告)号：EP3524804A2
公开(公告)日：2019-08-14
申请号：EP19155522.6
申请日：2019-02-05
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： AOKI, Keiichiro , KATO, Mie , TAKAHASHI, Kazuki
IPC分类号： F02D41/14 , F02N11/08 , G01N27/406
摘要： A sensor system for an engine (1) for which an automatic stop-restart control is performed, the sensor system including: an exhaust gas sensor (14) including a heater (14b) that heats a sensor element (14a); and a control unit (20) configured to: while the engine is stopped by the automatic stop-restart control, execute a preheat control of adjusting a temperature of the sensor element to a preheat temperature lower than an activation temperature (Tsa); when an automatic start condition is satisfied, stop the preheat control and increase the temperature of the sensor element to the activation temperature; when an automatic stop condition is satisfied and a delay condition has not been satisfied, set the preheat temperature to a first temperature (Tsp1); and when the automatic stop condition is satisfied and the delay condition has been satisfied, set the preheat temperature to a second temperature (Tsp2) higher than the first temperature.

48. 发明授权

EP3054135B1 ABNORMALITY DIAGNOSIS SYSTEM FOR AIR-FUEL RATIO SENSOR 失效
公开(公告)号：EP3054135B1
公开(公告)日：2019-03-06
申请号：EP13895060.5
申请日：2013-10-01
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： MIYAMOTO, Hiroshi , IWAZAKI, Yasushi , AOKI, Keiichiro , KIDOKORO, Toru
IPC分类号： F02D45/00 , F02D41/22 , G01N27/26 , F02D41/14

49. 发明授权

EP3015690B1 INTERNAL-COMBUSTION-ENGINE DIAGNOSTIC DEVICE 失效
公开(公告)号：EP3015690B1
公开(公告)日：2019-02-20
申请号：EP13887651.1
申请日：2013-06-26
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： MIYAMOTO, Hiroshi , MIYOSHI, Yuji , IWAZAKI, Yasushi , KIDOKORO, Toru , AOKI, Keiichiro
IPC分类号： F02D41/22 , F02D45/00 , F02D41/14 , F02D41/12

50. 发明公开

EP3385518A1 EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
公开(公告)号：EP3385518A1
公开(公告)日：2018-10-10
申请号：EP18165756.0
申请日：2018-04-04
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： YODA, Kimikazu , AOKI, Keiichiro , HAYASHITA, Go
IPC分类号： F01N3/20 , F01N11/00 , F02D41/22 , F02D41/06 , F02D41/08 , F02D41/14 , F02D41/16 , F02D41/00 , F02D41/12
CPC分类号： F02D41/1475 , F01N3/20 , F01N2430/06 , F01N2560/021 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2900/1402 , F01N2900/1404 , F02D41/068 , F02D41/1445 , F02D41/1446 , F02D41/1447 , F02D41/1454 , F02D41/1456 , F02D41/1463 , F02D2041/1468 , F02D2200/0802 , F02D2200/0804 , F02M31/042 , F02M31/10
摘要： The exhaust purification system of an internal combustion engine 100, 100a, 100b, 100c comprises: a catalyst 20 arranged in an exhaust passage 22 of the internal combustion engine and able to store oxygen; an ammonia detection device 46, 71 arranged in the exhaust passage at a downstream side of the catalyst in a direction of flow of exhaust; and an air-fuel ratio control part configured to control an air-fuel ratio of inflowing exhaust gas flowing into the catalyst to a target air-fuel ratio. The air-fuel ratio control part is configured to perform rich control making the target air-fuel ratio richer than a stoichiometric air-fuel ratio, and make the target air-fuel ratio leaner than the stoichiometric air-fuel ratio when an output value of the ammonia detection device rises to a reference value in the rich control.

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