-
公开(公告)号：EP2243026B1
公开(公告)日：2019-05-15
申请号：EP09709983.2
申请日：2009-02-10
发明人： SASAKI, Takanori
IPC分类号： G01N27/417 , G01N33/00
-
公开(公告)号：EP2257703A1
公开(公告)日：2010-12-08
申请号：EP09714142.8
申请日：2009-01-26
CPC分类号： F02D41/1441 , C01B3/323 , C01B3/384 , C01B2203/0233 , C01B2203/0238 , C01B2203/025 , C01B2203/0435 , C01B2203/0811 , C01B2203/0822 , C01B2203/0827 , C01B2203/0844 , C01B2203/1052 , C01B2203/1058 , C01B2203/1064 , C01B2203/107 , C01B2203/1076 , C01B2203/1229 , C01B2203/1247 , C01B2203/148 , C01B2203/1619 , C01B2203/1676 , C01B2203/169 , F01N3/2889 , F01N5/02 , F01N13/009 , F01N2240/30 , F01N2560/025 , F01N2610/03 , F02D19/0623 , F02D19/0634 , F02D19/0644 , F02D19/0671 , F02D19/0692 , F02D19/084 , F02D41/0025 , F02D41/0027 , F02D41/0065 , F02D41/1439 , F02D41/1454 , F02D2041/147 , F02M26/36 , G01N33/005 , Y02P20/128 , Y02P20/142 , Y02T10/16 , Y02T10/36 , Y02T10/47
摘要： Fuel reforming catalysts 28 generate a hydrogen-containing reformed gas when they come into contact with exhaust gas that contains a reforming fuel. Upstream and downstream air-fuel ratio sensors 58, 60 are respectively installed upstream and downstream of the fuel reforming catalysts 28. The upstream air-fuel ratio sensor 58 outputs a upstream sensor signal in accordance with oxygen concentration. The downstream air-fuel ratio sensor 60 outputs a downstream sensor signal in accordance with oxygen concentration and hydrogen concentration by using zirconia's oxygen detection capability and a change of a diffusion layer's hydrogen-concentration-dependent oxygen detection capability. An ECU 50 detects the hydrogen concentration without being affected by the oxygen concentration through the use of the upstream sensor signal in which only the oxygen concentration is reflected and the downstream sensor signal in which the oxygen concentration and hydrogen concentration are reflected. This makes it possible to establish a hydrogen concentration detection system with the common air-fuel ratio sensors 58, 60.
-
公开(公告)号：EP1974126A1
公开(公告)日：2008-10-01
申请号：EP07700499.2
申请日：2007-01-18
CPC分类号： F01L1/053 , F01L1/047 , F01L2810/02
摘要： A cylinder head (10) of an internal combustion engine is fitted with rocker arms (20, 24). Camshafts (26, 28) are disposed so that the rocker arms (20, 24) and cams (21, 25) will be brought into contact with each other. The camshafts (26, 28) are rotatably supported by lower bearings (34), which supports the camshafts (26, 28) from below, and by upper bearings (32) integrated with a head cover (30). The head cover (30) is provided with visual observation windows (44, 46) that make it possible to see valve system parts through the head cover (30). A visual observation window covers (54, 56) for covering the visual observation windows (44, 46) are fixed to the head cover (30).
-
公开(公告)号：EP2716899B1
公开(公告)日：2018-04-04
申请号：EP11865973.9
申请日：2011-05-24
发明人： AOKI, Keiichiro , SASAKI, Takanori , HAYASHITA, Go
CPC分类号： F02D41/1438 , F02D41/062 , F02D41/1441 , F02D41/1456 , F02D41/2474
摘要： A sensor characteristic correction device provided with a characteristic detection means, a calculation means, difference detection means, and a correction means. The characteristic detection means detects a characteristic of a first sensor (10, 20) 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). The calculation means calculates 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. When the catalyst (6) is in an inactive state after start-up of the internal combustion engine (2), the difference detection means detects 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. The correction means corrects the characteristic of the first sensor and/or the second sensor in accordance with the difference so that the first air-fuel ratio and the second air-fuel ratio become the same.
-
公开(公告)号：EP1974126B1
公开(公告)日：2011-08-17
申请号：EP07700499.2
申请日：2007-01-18
CPC分类号： F01L1/053 , F01L1/047 , F01L2810/02
摘要： A cylinder head (10) of an internal combustion engine is fitted with rocker arms (20, 24). Camshafts (26, 28) are disposed so that the rocker arms (20, 24) and cams (21, 25) will be brought into contact with each other. The camshafts (26, 28) are rotatably supported by lower bearings (34), which supports the camshafts (26, 28) from below, and by upper bearings (32) integrated with a head cover (30). The head cover (30) is provided with visual observation windows (44, 46) that make it possible to see valve system parts through the head cover (30). A visual observation window covers (54, 56) for covering the visual observation windows (44, 46) are fixed to the head cover (30).
-
公开(公告)号：EP2223095A1
公开(公告)日：2010-09-01
申请号：EP08865756.4
申请日：2008-12-24
发明人： SASAKI, Takanori
IPC分类号： G01N27/407 , G01N27/406 , F02D41/06 , F02D41/12
CPC分类号： G01N27/419 , F02D41/06 , F02D41/123 , G01N27/4067
摘要： It is an object of the present invention to provide a gas concentration detection apparatus that is capable of forming an accurate activity judgment when a gas concentration detection cell begins to detect gas concentration with high accuracy. When warm-up begins at time t0 in a NOx concentration detection apparatus that achieves NOx concentration detection with a NOx sensor cell after excess oxygen is discharged by an oxygen pump cell, a NOx sensor cell output begins to rise at time t1. Subsequently, at time t2, an oxygen pump cell output begins to rise. An inflection point appearing in the NOx sensor cell output is then located. At time t5 at which the inflection point appears, an activity judgment about the NOx sensor cell is formed.
摘要翻译： 本发明的目的是提供一种气体浓度检测装置，其能够在气体浓度检测单元开始高精度地检测气体浓度时形成精确的活性判断。 当在氧浓度检测装置中的时间t0开始预热时，在通过氧气泵电池排出过量的氧气之后，利用NOx传感器单元实现NOx浓度检测，NOx传感器单元的输出在时刻t1开始上升。 随后，在时间t2，氧气泵电池输出开始上升。 然后在NOx传感器单元输出中出现拐点。 在出现拐点的时间t5，形成关于NOx传感器单元的活动判断。
-
公开(公告)号：EP1974128A1
公开(公告)日：2008-10-01
申请号：EP07705443.5
申请日：2007-01-18
IPC分类号： F01L1/053
CPC分类号： F01L1/053 , F01L1/0532 , F02F7/006
摘要： A lower cam carrier (20) is disposed over a cylinder head (10) and a head cover (40) is disposed thereover. The lower cam carrier (20) has, formed as one therewith, an outer frame (22) superposed with the edge peripheral edge (14) of the cylinder head (10), and a bridging part (26) provided between opposing sides of the outer frame (22). The bridging part (26) has a lower bearing (28) for supporting an intake camshaft (30) and an exhaust camshaft (32). The head cover (40) has, formed as one therewith, a flange (42) superposed with the outer frame (22) and a bearing (46) opposing the bridging part (26) inside the flange (42). The bearing (46) has an upper bearing that, together with the lower bearing, supports the intake camshaft (30) and the exhaust camshaft (32).
-
公开(公告)号：EP2711528B1
公开(公告)日：2019-04-10
申请号：EP11865664.4
申请日：2011-05-19
发明人： AOKI, Keiichiro , SASAKI, Takanori , HAYASHITA, Go
-
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
发明人： AOKI, Keiichiro , HAYASHITA, Go , SASAKI, Takanori
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。
-
10.发明公开CORRECTION DEVICE FOR AIR/FUEL RATIO SENSOR 审中-公开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
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。
-
-
-
-
-
-
-
-
-
搜索结果
24 条记录 (耗时 0.016 秒)
