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11. 发明申请

US20100218485A1 AIR-FUEL RATIO CONTROL APPARATUS AND AIR-FUEL RATIO CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于内燃机的空燃比比控制装置和空燃比控制方法
公开(公告)号：US20100218485A1
公开(公告)日：2010-09-02
申请号：US12439902
申请日：2007-09-05
申请人： Takahiko Fujiwara , Norihisa Nakagawa , Naoto Kato , Shuntaro Okazaki , Koji Ide
发明人： Takahiko Fujiwara , Norihisa Nakagawa , Naoto Kato , Shuntaro Okazaki , Koji Ide
IPC分类号： F01N11/00 , F01N3/10 , F01N9/00
CPC分类号： F02D41/027 , F01N2570/16 , F02D41/0295 , F02D41/1454 , F02D2200/0814
摘要： A fuel injection amount is controlled so that the air-fuel ratio of exhaust gas flowing into a catalyst (6) oscillates around a stoichiometric air-fuel ratio. When it is estimated that the level of oxygen storage capacity of the catalyst (6) is lower than a predetermined reference capacity, the amplitude of the air-fuel ratio of the exhaust gas which oscillates around the stoichiometric air-fuel ratio is reduced by controlling the fuel injection amount. The level of the oxygen storage capacity of the catalyst (6) is estimated based on the amplitude of the output signal from an oxygen sensor (14) disposed downstream of the catalyst (6).
摘要翻译：控制燃料喷射量，使得流入催化剂（6）的废气的空燃比围绕化学计量空燃比振荡。当估计催化剂（6）的储氧能力水平低于预定的参考容量时，围绕理论空燃比振荡的废气的空燃比的幅度通过控制燃料喷射量。基于来自设置在催化剂（6）下游的氧传感器（14）的输出信号的振幅来估计催化剂（6）的储氧能力水平。

12. 发明授权

US07474956B2 Air-fuel ratio control system of internal combustion engine 有权
标题翻译：内燃机空燃比控制系统
公开(公告)号：US07474956B2
公开(公告)日：2009-01-06
申请号：US11885266
申请日：2006-09-13
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： G06F19/00 , F02D41/14 , F01N3/10
CPC分类号： F02D41/1441 , F01N2560/025 , F01N2560/14 , F02D41/123 , F02D41/1454 , F02D41/1456 , F02D2041/1409 , F02D2041/1422 , F02D2200/0814
摘要： An air-fuel ratio control system maintaining constant an oxygen storage amount or oxygen release amount per unit time with respect to an exhaust purification catalyst having an oxygen storage capacity even if the intake air amount changes is provided.An air-fuel ratio control system of an internal combustion engine having an intake air amount detecting means, a linear air-fuel ratio sensor arranged at an upstream side of an exhaust purification catalyst, an O2 sensor arranged at a downstream side of said exhaust purification catalyst, a target air-fuel ratio controlling means for performing feedback control of a target air-fuel ratio of exhaust flowing into the exhaust purification catalyst based on output information from the intake air amount detecting means and the O2 sensor, and a fuel injection amount controlling means for performing feedback control of the fuel injection amount based on output information of the linear air-fuel ratio sensor so as to achieve the target air-fuel ratio, characterized in that the target air-fuel ratio controlling means performs feedback control of the target air-fuel ratio so that even when the intake air amount changes, a correction amount per unit time of an oxygen storage amount of the exhaust purification catalyst is made constant.
摘要翻译：即使提供进气量变化，也能够提供相对于具有储氧能力的排气净化催化剂，每单位时间保持恒定氧气储存量或氧释放量的空燃比控制系统。一种内燃机的空燃比控制系统，具有进气量检测装置，布置在排气净化催化剂的上游侧的线性空燃比传感器，配置在排气净化装置的下游侧的O2传感器催化剂，目标空燃比控制装置，用于根据来自进气量检测装置和O2传感器的输出信息，对流入排气净化催化剂的排气的目标空燃比进行反馈控制;燃料喷射量控制装置，用于基于线性空燃比传感器的输出信息进行燃料喷射量的反馈控制，以实现目标空燃比，其特征在于，所述目标空燃比控制装置执行所述目标空燃比控制装置的反馈控制，目标空燃比，使得即使当进气量变化时，排气的氧气存储量的每单位时间的校正量净化催化剂保持恒定。

13. 外观设计

USD581624S1 Control device for an automated warehousing system 有权
公开(公告)号：USD581624S1
公开(公告)日：2008-11-25
申请号：US29273247
申请日：2007-02-27
申请人： Naoto Kato
设计人： Naoto Kato

14. 外观设计

USD564175S1 Control device for an automated warehousing system 有权
标题翻译：自动化仓储系统的控制装置
公开(公告)号：USD564175S1
公开(公告)日：2008-03-11
申请号：US29273248
申请日：2007-02-27
申请人： Naoto Kato , Daisuke Iguchi
设计人： Naoto Kato , Daisuke Iguchi

15. 发明申请

US20070074709A1 Controller and control method for internal combustion engine 有权
标题翻译：内燃机控制器及控制方法
公开(公告)号：US20070074709A1
公开(公告)日：2007-04-05
申请号：US11529428
申请日：2006-09-29
申请人： Naoto Kato , Shuntaro Okazaki
发明人： Naoto Kato , Shuntaro Okazaki
IPC分类号： F02D41/14 , F02M51/00 , G06F17/00
CPC分类号： F02D41/182 , F02D41/1441 , F02D41/1456 , F02D41/2412 , F02D41/2454 , F02D41/2467 , F02D41/2474 , F02D41/40 , Y02T10/44
摘要： A controller approximates an output characteristic of an air flow meter using at least one parameter, and approximates a characteristic of a fuel injection characteristic of an injector using at least one parameter. These parameters are determined and updated based on an exhaust air-fuel ratio acquired by an air-fuel ratio sensor disposed in an exhaust passage, so that the exhaust air-fuel ratio approaches a target air-fuel ratio.
摘要翻译：控制器使用至少一个参数近似空气流量计的输出特性，并使用至少一个参数近似喷射器的燃料喷射特性的特性。基于由布置在排气通道中的空燃比传感器获取的排气空燃比来确定和更新这些参数，使得排气空燃比接近目标空燃比。

16. 发明申请

US20050217244A1 Catalyst degradation determining method 有权
公开(公告)号：US20050217244A1
公开(公告)日：2005-10-06
申请号：US11133215
申请日：2005-05-20
申请人： Akira Kamoto , Toshinari Nagai , Yasuhiro Oi , Noriyasu Adachi , Koji Ide , Daisuke Kobayashi , Shuntaro Okazaki , Naoto Kato , Takahiro Uchida
发明人： Akira Kamoto , Toshinari Nagai , Yasuhiro Oi , Noriyasu Adachi , Koji Ide , Daisuke Kobayashi , Shuntaro Okazaki , Naoto Kato , Takahiro Uchida
IPC分类号： F02D45/00 , F01N3/00 , F01N3/20 , F01N3/24 , F01N7/00 , F01N11/00 , F02D41/14
CPC分类号： F01N3/101 , F01N11/00 , F01N11/007 , F01N13/009 , F01N13/0093 , F01N2550/02 , F02D2200/0816 , Y02T10/22 , Y02T10/47
摘要： A catalyst degradation determining method includes the steps of: controlling an upstream-of-catalyst air-fuel ratio occurring upstream of a first catalyst to an air-fuel ratio that is rich of a stoichiometric air-fuel ratio so that first and second catalysts store oxygen up to a maximum storage amount of oxygen. The method then includes the steps of controlling the upstream-of-catalyst air-fuel ratio to a first lean air-fuel ratio until an output of a downstream-of-first-catalyst sensor indicates a lean air-fuel ratio, and then to a second lean air-fuel ratio and that has a value that is determined in accordance with an oxidizing-reducing capability index value, until a time point when an output of a downstream-of-second-catalyst air-fuel ratio sensor indicates an air-fuel ratio that is lean.

17. 发明授权

US06915628B2 Catalyst degradation determining method 失效
公开(公告)号：US06915628B2
公开(公告)日：2005-07-12
申请号：US10606375
申请日：2003-06-26
申请人： Akira Kamoto , Toshinari Nagai , Yasuhiro Oi , Noriyasu Adachi , Koji Ide , Daisuke Kobayashi , Shuntaro Okazaki , Naoto Kato , Takahiro Uchida
发明人： Akira Kamoto , Toshinari Nagai , Yasuhiro Oi , Noriyasu Adachi , Koji Ide , Daisuke Kobayashi , Shuntaro Okazaki , Naoto Kato , Takahiro Uchida
IPC分类号： F02D45/00 , F01N3/00 , F01N3/20 , F01N3/24 , F01N7/00 , F01N11/00 , F02D41/14
CPC分类号： F01N3/101 , F01N11/00 , F01N11/007 , F01N13/009 , F01N13/0093 , F01N2550/02 , F02D2200/0816 , Y02T10/22 , Y02T10/47
摘要： A catalyst degradation determining method includes the steps of: controlling an upstream-of-catalyst air-fuel ratio occurring upstream of a first catalyst to an air-fuel ratio that is rich of a stoichiometric air-fuel ratio so that first and second catalysts store oxygen up to a maximum storage amount of oxygen. The method then includes the steps of controlling the upstream-of-catalyst air-fuel ratio to a first lean air-fuel ratio until an output of a downstream-of-first-catalyst sensor indicates a lean air-fuel ratio, and then to a second lean air-fuel ratio and that has a value that is determined in accordance with an oxidizing-reducing capability index value, until a time point when an output of a downstream-of-second-catalyst air-fuel ratio sensor indicates an air-fuel ratio that is lean.

18. 发明授权

US06546719B2 Air-fuel ratio control apparatus of internal combustion engine 失效
标题翻译：内燃机空燃比控制装置
公开(公告)号：US06546719B2
公开(公告)日：2003-04-15
申请号：US09956992
申请日：2001-09-21
申请人： Akira Kamoto , Toshinari Nagai , Akihiro Katayama , Naoto Kato
发明人： Akira Kamoto , Toshinari Nagai , Akihiro Katayama , Naoto Kato
IPC分类号： F01N300
CPC分类号： F02D41/0295 , F01N11/007 , F01N2550/02 , F01N2570/16 , Y02T10/47
摘要： An air-fuel ratio control apparatus of an internal combustion engine according to the present invention is provided with an oxygen storage amount estimator for estimating an oxygen storage amount of an exhaust purifying catalyst and air-fuel ratio control means for controlling an air-fuel ratio, based on the oxygen storage amount. An upper threshold and a lower threshold are set for the oxygen storage amount, and the air-fuel ratio controller performs such control that, when the oxygen storage amount is larger than the upper threshold, the controller controls the air-fuel ratio to a rich region and that, when the oxygen storage amount is smaller than the lower threshold, the controller controls the air-fuel ratio to a lean region. Since this control makes the oxygen storage amount vary between the upper threshold and the lower threshold (within a predetermined range), it is feasible to promote activation of the exhaust purifying catalyst, so as to keep purification performance of the exhaust purifying catalyst high, and to implement stable control of air-fuel ratio.
摘要翻译：根据本发明的内燃机的空燃比控制装置设置有用于估计排气净化催化剂的氧气储存量的储氧量估计器和用于控制空燃比的空燃比控制装置，基于氧气储存量。对于氧气存储量设定上阈值和下阈值，空燃比控制器进行这样的控制，即当氧气存储量大于上阈值时，控制器将空燃比控制为丰富并且当氧气存储量小于下限阈值时，控制器将空燃比控制到稀薄区域。由于该控制使得氧气存储量在上限阈值和下限阈值之间变化（在预定范围内），因此能够促进排气净化催化剂的活化，从而使排气净化催化剂的净化性能保持在较高水平，实现空燃比稳定控制。

19. 发明授权

US08874348B2 Control apparatus for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：US08874348B2
公开(公告)日：2014-10-28
申请号：US13002260
申请日：2009-05-29
申请人： Kaoru Ohtsuka , Shinichi Soejima , Keisuke Kawai , Hiroyuki Tanaka , Hayato Nakada , Naoto Kato
发明人： Kaoru Ohtsuka , Shinichi Soejima , Keisuke Kawai , Hiroyuki Tanaka , Hayato Nakada , Naoto Kato
IPC分类号： G06F19/00 , G06G7/70 , F02D11/10 , F02D37/02 , F02D41/00 , F02D41/14
CPC分类号： F02D11/105 , F02D37/02 , F02D41/0002 , F02D2041/1434 , F02D2250/18
摘要： A control apparatus for an internal combustion engine is provided that can precisely reflect requirements relating to performance of the internal combustion engine in a control amount of each actuator by compensating for weaknesses in the so-called torque demand control. A requirement value of each of torque, efficiency, and an air-fuel ratio, and engine information are inputted to an engine inverse model. The engine inverse model is then used to calculate actuator requirement values for achieving those requirement values. An actuator direct requirement value directly required of each of actuators is also acquired. Control of the actuators is adapted to be changed between that according to the actuator requirement value and that according to the actuator direct requirement value.
摘要翻译：提供了一种用于内燃机的控制装置，其通过补偿所谓的扭矩需求控制的弱点，能够精确地反映与每个致动器的控制量相关的内燃机的性能的要求。将扭矩，效率和空燃比以及发动机信息的要求值输入到发动机逆模型。然后使用发动机反转模型来计算实现这些要求值的执行器要求值。还获得了每个致动器直接要求的致动器直接要求值。致动器的控制适应于根据致动器要求值和根据致动器直接要求值的控制。

20. 发明授权

US08744727B2 Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：US08744727B2
公开(公告)日：2014-06-03
申请号：US13636902
申请日：2010-05-13
申请人： Naoto Kato
发明人： Naoto Kato
IPC分类号： F02D41/04
CPC分类号： F02D11/105 , F02D37/02 , F02D41/0002 , F02D41/0235 , F02D41/0295 , F02D41/30 , F02D2041/1432 , F02D2200/0802 , F02D2250/18 , Y02T10/42
摘要： A control device for an internal combustion engine which can highly precisely realize required torque including a high-frequency component with high responsiveness. The control device sets torque with a low frequency included in the required torque as an air quantity controlling torque, and calculates a target air quantity for realizing the air quantity controlling torque based on data in which a relationship of the air quantity and torque is set. The control device controls the air quantity in accordance with the target air quantity. Further, the control device sets torque including both a low frequency and a high frequency as air-fuel ratio controlling torque, and calculates an air-fuel ratio corresponding to the air-fuel ratio controlling torque and a present air quantity as a target air-fuel ratio. The control device controls a fuel injection amount in accordance with the target air-fuel ratio.
摘要翻译：一种用于内燃机的控制装置，其可以高精度地实现包括高响应性的高频分量的所需扭矩。控制装置将包含在所需转矩中的低频的转矩设定为空气量控制转矩，并且基于设定了空气量和转矩的关系的数据计算出实现空气量控制转矩的目标空气量。控制装置根据目标空气量来控制空气量。此外，控制装置将包括低频和高频两者的转矩设定为空燃比控制转矩，并且计算与空燃比控制转矩对应的空燃比和作为目标空调控制转矩的当前空气量，燃料比。控制装置根据目标空燃比控制燃料喷射量。

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