公开(公告)号：US09062622B2

公开(公告)日：2015-06-23

申请号：US13821795

申请日：2010-09-09

申请人： Ryota Onoe ,  Junichi Suzuki ,  Takahiko Fujiwara ,  Makoto Tomimatsu

发明人： Ryota Onoe ,  Junichi Suzuki ,  Takahiko Fujiwara ,  Makoto Tomimatsu

IPC分类号： F02D41/02 ,  F02D41/14 ,  F02D41/24

CPC分类号： F02D41/0235 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1475 ,  F02D41/2441 ,  F02D41/2454

摘要： An air-fuel ratio control apparatus of the present invention comprises an inverse direction spike introducing section and an inverse direction spike interval setting section. The inverse direction spike introducing section introduces, while an air-fuel ratio correction required by an output of a downstream air-fuel ratio sensor is being carried out, an inverse direction spike which is an air-fuel ratio spike to temporarily change an air-fuel ratio of an exhaust gas toward a direction opposite to a direction of the air-fuel ratio correction with respect to a target control air-fuel ratio. The inverse direction spike interval setting section sets, based on an operating state of an internal combustion engine system, an inverse direction spike interval which is an interval between two of the inverse direction spikes next to each other in time.

摘要翻译： 本发明的空燃比控制装置包括反方向尖峰引入部和逆方向尖峰间隔设定部。 逆向尖峰引入部引入在进行下游空燃比传感器的输出所要求的空燃比校正的同时进行作为空燃比尖峰的反方向尖峰， 相对于目标控制空燃比，排气朝与空燃比校正方向相反的方向的燃料比。 逆方向尖峰间隔设定部基于内燃机系统的运转状态，设定作为时间上相邻的两个逆方向前后的间隔的反方向时间间隔。

公开(公告)号：US08899019B2

公开(公告)日：2014-12-02

申请号：US13823398

申请日：2010-09-15

申请人： Ryota Onoe ,  Junichi Suzuki ,  Takahiko Fujiwara ,  Makoto Tomimatsu ,  Koichi Kimura ,  Shuntaro Okazaki

发明人： Ryota Onoe ,  Junichi Suzuki ,  Takahiko Fujiwara ,  Makoto Tomimatsu ,  Koichi Kimura ,  Shuntaro Okazaki

IPC分类号： F01N3/00 ,  F01N3/10 ,  F02D41/14 ,  F02D41/02 ,  F02D41/04

CPC分类号： F02D41/0235 ,  F02D41/045 ,  F02D41/1401 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1456

摘要： An air-fuel ratio control apparatus of the present invention includes a determination section and a reverse direction correction introducing section. The determination section determines whether or not an output of the downstream air-fuel ratio sensor falls within a predetermined range whose center corresponds to a target value corresponding to the stoichiometric air-fuel ratio. When the output of the downstream air-fuel ratio sensor falls within the predetermined range, the reverse direction correction introducing section temporarily introduces, to an air-fuel ratio correction in a direction requested by the output, an air-fuel ratio correction in a direction opposite to the requested direction.

摘要翻译： 本发明的空燃比控制装置具有确定部和逆方向校正导入部。 确定部分确定下游空燃比传感器的输出是否落在其中心对应于与化学计量空燃比对应的目标值的预定范围内。 当下游空燃比传感器的输出落在预定范围内时，反方向校正引入部临时引入在输出要求的方向上的空燃比校正方向上的空燃比校正 与要求方向相反。

公开(公告)号：US08772208B2

公开(公告)日：2014-07-08

申请号：US13379877

申请日：2011-03-18

申请人： Ippei Fukutomi ,  Norio Inami ,  Kenichi Harada ,  Motoichi Murakami ,  Koji Morita ,  Takahiko Fujiwara

发明人： Ippei Fukutomi ,  Norio Inami ,  Kenichi Harada ,  Motoichi Murakami ,  Koji Morita ,  Takahiko Fujiwara

IPC分类号： C07F3/00

CPC分类号： C10M125/10 ,  C10M175/0091 ,  C10M2201/02 ,  C10M2201/062 ,  C10N2230/02 ,  C10N2230/10 ,  C10N2240/10 ,  C10N2240/102 ,  C10N2240/104 ,  C10N2210/02 ,  C10N2210/03

摘要： The present invention provides an additive agent to be added to oil and comprising weak basic hydrotalcite. At the time of adding a mixture of hydrotalcite of 1 weight % and water by 3 weight % to the oil where a hydrogen ion exponent is within a range of 6 to 7 for stirring, the weak basic hydrotalcite is hydrotalcite where the obtained oil indicates the hydrogen ion exponent within a range of 6 to 7. Such an additive agent can be accommodated in an oil filter (36) for use.

摘要翻译： 本发明提供添加到油中并含有弱碱性水滑石的添加剂。 在将1重量％的水滑石混合物和3重量％的水混合物加入油中，其中氢离子指数在6至7的范围内搅拌时，弱碱性水滑石为水滑石，其中所得油表示 氢离子指数在6至7的范围内。这种添加剂可以容纳在油过滤器（36）中以供使用。

公开(公告)号：US08613219B2

公开(公告)日：2013-12-24

申请号：US13642820

申请日：2010-04-23

申请人： Koichi Kitaura ,  Takahiko Fujiwara ,  Yuuji Miyoshi ,  Ryota Onoe

发明人： Koichi Kitaura ,  Takahiko Fujiwara ,  Yuuji Miyoshi ,  Ryota Onoe

IPC分类号： G01M15/10

CPC分类号： F02D41/1441 ,  F01N3/101 ,  F01N11/007 ,  F01N2560/025 ,  F01N2560/14 ,  F01N2900/0416 ,  F01N2900/1402 ,  F01N2900/1624 ,  F02D41/1475 ,  Y02T10/22 ,  Y02T10/47

摘要： Active air-fuel ratio control is performed to alternately control an air-fuel ratio in an area located upstream of a catalyst between a lean side and a rich side. Switching is carried out between lean control and rich control at the same time when an output from a post-catalyst sensor reaches a threshold. Whether the catalyst is normal or abnormal is determined based on the rate of a change in the output from the post-catalyst sensor between a first point of time when a pre-catalyst air-fuel ratio reaches stoichiometry after the output from the post-catalyst sensor reaches the threshold and a second point of time when the output from the post-catalyst sensor reaches the threshold next time.

摘要翻译： 执行主动空燃比控制以交替地控制位于贫侧和富侧之间的催化剂上游的区域中的空燃比。 在后催化剂传感器的输出达到阈值的同时，在稀薄控制和浓控制之间进行切换。 基于催化剂后传感器的输出的变化率，在催化剂后催化剂的输出后催化剂前空燃比达到化学计量的第一时间点之后，确定催化剂是正常还是异常 传感器达到阈值，而后催化剂传感器的输出下一次达到阈值的第二时间点。

公开(公告)号：US20130036808A1

公开(公告)日：2013-02-14

申请号：US13642820

申请日：2010-04-23

申请人： Koichi Kitaura ,  Takahiko Fujiwara ,  Yuuji Miyoshi ,  Ryota Onoe

发明人： Koichi Kitaura ,  Takahiko Fujiwara ,  Yuuji Miyoshi ,  Ryota Onoe

IPC分类号： G01M15/10

CPC分类号： F02D41/1441 ,  F01N3/101 ,  F01N11/007 ,  F01N2560/025 ,  F01N2560/14 ,  F01N2900/0416 ,  F01N2900/1402 ,  F01N2900/1624 ,  F02D41/1475 ,  Y02T10/22 ,  Y02T10/47

摘要： Active air-fuel ratio control is performed to alternately control an air-fuel ratio in an area located upstream of a catalyst between a lean side and a rich side. Switching is carried out between lean control and rich control at the same time when an output from a post-catalyst sensor reaches a threshold. Whether the catalyst is normal or abnormal is determined based on the rate of a change in the output from the post-catalyst sensor between a first point of time when a pre-catalyst air-fuel ratio reaches stoichiometry after the output from the post-catalyst sensor reaches the threshold and a second point of time when the output from the post-catalyst sensor reaches the threshold next time.

摘要翻译： 执行主动空燃比控制以交替地控制位于贫侧和富侧之间的催化剂上游的区域中的空燃比。 在后催化剂传感器的输出达到阈值的同时，在稀薄控制和浓控制之间进行切换。 基于催化剂后传感器的输出的变化率，在催化剂后催化剂的输出后催化剂前空燃比达到化学计量的第一时间点之后，确定催化剂是正常还是异常 传感器达到阈值，而后催化剂传感器的输出下一次达到阈值的第二时间点。

公开(公告)号：US20110283959A1

公开(公告)日：2011-11-24

申请号：US12785034

申请日：2010-05-21

申请人： Koji ASO ,  Takahiko Fujiwara ,  Hiroshi Tanaka

发明人： Koji ASO ,  Takahiko Fujiwara ,  Hiroshi Tanaka

IPC分类号： F02B43/10 ,  F01N3/00 ,  F01N3/10

CPC分类号： F02M31/14 ,  F01N3/30 ,  F01N9/00 ,  F01N2240/30 ,  F01N2610/02 ,  F01N2610/03 ,  F02D19/0644 ,  F02D19/0671 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/0235 ,  F02D2200/0802 ,  F02M23/10 ,  F02M31/18 ,  Y02T10/126

摘要： An ammonia burning internal combustion engine in which, in addition to ammonia, a reformed gas reformed at a reformer is fed into a combustion chamber. When a reforming ability of the reformer is less than a predetermined reforming ability, an ammonia ratio is increased to a ratio more than the ammonia ratio after completion of engine warmup set in advance in accordance with an operation state of the engine, and secondary air is fed from a secondary air feeding device into an engine exhaust passage upstream of an exhaust purification catalyst.

摘要翻译： 除了氨之外，在重整器中重整的重整气体中的氨燃烧内燃机被送入燃烧室。 当重整器的重整能力小于预定的重整能力时，根据发动机的运行状态，氨预测比例提高到预先设定的发动机预热完成后的氨比例，并且二次空气为 从二次空气供给装置进入排气净化催化剂上游的发动机排气通路。

公开(公告)号：US07729847B2

公开(公告)日：2010-06-01

申请号：US11913697

申请日：2007-02-07

申请人： Hiroaki Mizoguchi ,  Takahiko Fujiwara ,  Kunihiko Nakata ,  Kenji Sakurai ,  Hiroki Ichinose ,  Masaaki Kawai ,  Atsunori Hirata

发明人： Hiroaki Mizoguchi ,  Takahiko Fujiwara ,  Kunihiko Nakata ,  Kenji Sakurai ,  Hiroki Ichinose ,  Masaaki Kawai ,  Atsunori Hirata

IPC分类号： G06F19/00 ,  F01N3/20

CPC分类号： F01N3/24 ,  F01N3/101 ,  F01N3/2006 ,  F01N2340/00 ,  F01N2430/06 ,  F01N2560/06 ,  F01N2560/14 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/0255 ,  F02D2200/0802 ,  Y02T10/22 ,  Y02T10/26

摘要： The combustion air-fuel ratio is made leaner than the stoichiometric air-fuel ratio at the time of engine startup and the combustion air-fuel ratio is made richer than the stoichiometric air-fuel ratio and the exhaust downstream part of the three-way catalyst apparatus is raised in temperature when it is judged that just the exhaust upstream part of the three-way catalyst apparatus arranged in the engine exhaust system has been raised to the catalyst activation temperature.

摘要翻译： 燃料空燃比比发动机启动时的理论空燃比更稀，燃烧空燃比比化学计量空燃比和三元催化剂的排气下游部分更浓 当判断出排列在发动机排气系统中的三通催化剂装置的排气上游部分刚刚升高到催化剂活化温度时，装置升温。

公开(公告)号：US20100108046A1

公开(公告)日：2010-05-06

申请号：US12595767

申请日：2008-04-11

申请人： Norihisa Nakagawa ,  Takahiko Fujiwara ,  Taiga Hagimoto ,  Junichi Kako ,  Naoto Kato ,  Shuntaro Okazaki

发明人： Norihisa Nakagawa ,  Takahiko Fujiwara ,  Taiga Hagimoto ,  Junichi Kako ,  Naoto Kato ,  Shuntaro Okazaki

IPC分类号： F02D41/00

CPC分类号： F02D41/1455 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/2461

摘要： An air-fuel ratio control device includes an air-fuel ratio sensor provided upstream from a three-way catalyst, and an oxygen sensor provided downstream from the three-way catalyst. The air-fuel ratio control device controls the fuel supply amount based on the output from the air-fuel ratio sensor, and compensates for errors in the air-fuel ratio sensor by correcting the fuel supply amount based on the output from the oxygen sensor. The fuel supply correction amount is calculated based on an integral term that integrates the deviation between the output from the downstream air-fuel ratio sensor and the target air-fuel ratio. When a fuel supply adjustment control is executed, the value of the integral term in the sub-feedback control is not updated for a predetermined period after the fuel supply adjustment control ends. The actual air-fuel ratio is thus brought to the target air-fuel ratio in an appropriate manner.

摘要翻译： 空燃比控制装置包括设置在三元催化剂上游的空燃比传感器和设置在三元催化剂下游的氧传感器。 空燃比控制装置基于空燃比传感器的输出来控制燃料供给量，并且通过基于氧传感器的输出校正燃料供给量来补偿空燃比传感器的误差。 基于将来自下游空燃比传感器的输出与目标空燃比的偏差进行积分的积分项来计算燃料供给修正量。 当执行燃料供给调节控制时，在燃料供给调节控制结束之后的预定时间段内，子反馈控制中的积分项的值不被更新。 因此，实际的空燃比以适当的方式达到目标空燃比。

公开(公告)号：US20100024790A1

公开(公告)日：2010-02-04

申请号：US12443782

申请日：2007-08-13

申请人： Takahiko Fujiwara ,  Norihisa Nakagawa ,  Taiga Hagimoto ,  Junichi Kako ,  Naoto Kato ,  Shuntaro Okazaki ,  Koji Ide

发明人： Takahiko Fujiwara ,  Norihisa Nakagawa ,  Taiga Hagimoto ,  Junichi Kako ,  Naoto Kato ,  Shuntaro Okazaki ,  Koji Ide

IPC分类号： F02D41/00

CPC分类号： F02D41/2454 ,  F02D13/023 ,  F02D41/1454 ,  F02D41/2438 ,  F02D41/2474 ,  Y02T10/18

摘要： An air-fuel ratio control system of a multi-cylinder internal combustion engine provided with a throttle valve and opening characteristic control means, which system performs feedback control of an air-fuel ratio based on an output of a sensor detecting an air-fuel ratio of exhaust gas and is capable of performing more accurate air-fuel ratio control, is provided. In the feedback control, the relationship of the output of the sensor and a feedback value is corrected based on a feedback learning correction value learned and determined based on the output of the sensor during the feedback control, and, when newly learning the feedback learning correction value, the intake air amount is controlled by only the throttle valve.

摘要翻译： 具有节气门和开启特性控制装置的多缸内燃机的空燃比控制系统，其基于检测空燃比的传感器的输出进行空燃比的反馈控制 的排气，能够进行更精确的空燃比控制。 在反馈控制中，基于在反馈控制期间基于传感器的输出而学习和确定的反馈学习校正值来校正传感器的输出与反馈值的关系，并且当新学习反馈学习校正时 值，进气量仅由节流阀控制。

公开(公告)号：US20070089398A1

公开(公告)日：2007-04-26

申请号：US11583726

申请日：2006-10-20

申请人： Takahiko Fujiwara ,  Yasuyuki Takama

发明人： Takahiko Fujiwara ,  Yasuyuki Takama

IPC分类号： F01N3/00 ,  F01N7/00

CPC分类号： F01N11/007 ,  F01N2900/0421 ,  F01N2900/0422 ,  Y02T10/47

摘要： During deterioration detection of a catalyst, exhaust gas of a lean air/fuel ratio and exhaust gas of a rich air/fuel ratio are alternately supplied to the catalyst, and decrease of the O2 storage function is detected by obtaining the oxygen occlusion amount in the catalyst, based upon the timing at which, after changeover of the air/fuel ratio of the exhaust gas flowing into the catalyst, the air/fuel ratio of the exhaust gas passed through the catalyst changes to track that air/fuel ratio of the exhaust gas flowing into the catalyst. At this time, the rich air/fuel ratio of the exhaust gas and the lean air/fuel ratio of the exhaust gas supplied to the catalyst are set closer to the stoichiometric air/fuel ratio, the larger is the exhaust flow amount.

摘要翻译： 在催化剂的劣化检测期间，将稀空气/燃料比的废气和浓空气/燃料比的废气交替地供给到催化剂中，并且检测到O 2存储功能的降低 通过在催化剂中获得氧气吸留量，基于流过催化剂的废气的空气/燃料比的切换之后，通过催化剂的排气的空气/燃料比变化为轨迹 流入催化剂的废气的空气/燃料比。 此时，供给到催化剂的废气的浓空气/燃料比和稀空气/燃料比被设定为接近理论空燃比，废气流量越大。