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1. 发明授权

US07162862B2 Air-fuel ratio control apparatus for internal combustion engine 有权
标题翻译：用于内燃机的空燃比控制装置
公开(公告)号：US07162862B2
公开(公告)日：2007-01-16
申请号：US10479948
申请日：2002-06-18
申请人： Toshinari Nagai , Akihiro Katayama , Naoto Kato , Yukio Kuroda , Yasuhiro Kuze , Hiroshi Sawada , Takahiro Uchida , Naoki Baba , Shinji Kojima
发明人： Toshinari Nagai , Akihiro Katayama , Naoto Kato , Yukio Kuroda , Yasuhiro Kuze , Hiroshi Sawada , Takahiro Uchida , Naoki Baba , Shinji Kojima
IPC分类号： F01N3/00
CPC分类号： F01N3/0828 , B01D53/9495 , F01N3/2828 , F01N9/005 , F01N2330/06 , F01N2430/06 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F01N2570/16 , F02D41/003 , F02D41/025 , F02D41/1441 , F02D41/1455 , F02D41/1456 , F02D41/1465 , F02D2041/1433 , F02D2200/0802 , Y02T10/26 , Y02T10/47
摘要： An air-fuel ratio control apparatus estimates, on the basis of an exhaust air-fuel ratio of exhaust gas flowing into an exhaust purifying catalyst unit disposed in an exhaust passage of an engine, an emission of at least one specific component contained in exhaust gas flowing out of the exhaust purifying catalyst unit. The air-fuel ratio control apparatus performs the estimation by use of a model, and controls the air-fuel ratio in such a manner that the estimation value reaches a target state. The model is previously determined in consideration of the mass balance of the specific component.
摘要翻译：空燃比控制装置基于流入发动机的排气通路内的排气净化催化剂单元的排气的排气空燃比，估计废气中含有的至少一个特定成分的排放流出排气净化催化剂单元。空燃比控制装置使用模型进行估计，并且以估计值达到目标状态的方式控制空燃比。该模型先前是根据具体组件的质量平衡来确定的。

2. 发明授权

US07032374B2 Exhaust purification apparatus for internal combustion engine 有权
标题翻译：内燃机排气净化装置
公开(公告)号：US07032374B2
公开(公告)日：2006-04-25
申请号：US10768141
申请日：2004-02-02
申请人： Shuntaro Okazaki , Noriyasu Adachi , Naoto Kato , Toshinari Nagai , Yasuhiro Oi , Daisuke Kobayashi , Akira Ohata , Koji Ide
发明人： Shuntaro Okazaki , Noriyasu Adachi , Naoto Kato , Toshinari Nagai , Yasuhiro Oi , Daisuke Kobayashi , Akira Ohata , Koji Ide
IPC分类号： F01N3/00
CPC分类号： F02D41/0087 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N2430/06 , F02D41/0235 , F02D41/024 , F02D41/086 , F02D41/12 , F02D41/1401 , F02D41/1441 , F02D41/1456 , F02D2041/1409 , F02D2041/1418 , F02D2041/1432 , F02D2200/0802 , Y02T10/22 , Y02T10/26
摘要： An exhaust purification apparatus for an internal combustion engine includes a catalyst unit disposed in an exhaust passage of the engine, upstream and downstream air-fuel-ratio sensors disposed upstream and downstream, respectively, of the catalyst unit, a main-feedback controller, and a sub-feedback controller. The main-feedback controller calculates a main-feedback control quantity on the basis of an output value of the upstream air-fuel-ratio sensor and a predetermined upstream-side target value, and corrects, on the basis of the main-feedback control quantity, the quantity of fuel injected by an fuel injector. The sub-feedback controller calculates a sub-feedback control quantity on the basis of an output value of the downstream air-fuel-ratio sensor and a predetermined downstream-side target value, and corrects, on the basis of the sub-feedback control quantity, the quantity of fuel injected by the fuel injector, independently of the correction of the fuel injection quantity by the main-feedback control means.
摘要翻译：用于内燃机的排气净化装置包括设置在发动机的排气通道中的催化剂单元，分别设置在催化单元的上游和下游的上游和下游空燃比传感器，主反馈控制器和一个子反馈控制器。主反馈控制器基于上游空燃比传感器的输出值和规定的上游侧目标值计算主反馈控制量，并根据主反馈控制量，由燃料喷射器喷射的燃料量。副反馈控制器基于下游空燃比传感器的输出值和预定的下游侧目标值计算副反馈控制量，并且基于副反馈控制量，由燃料喷射器喷射的燃料量与主反馈控制装置的燃料喷射量的校正无关。

3. 发明授权

US06988359B2 Exhaust gas control apparatus and exhaust gas purification method for internal combustion engine 失效
标题翻译：内燃机排气控制装置及排气净化方法
公开(公告)号：US06988359B2
公开(公告)日：2006-01-24
申请号：US10464572
申请日：2003-06-19
申请人： Koji Ide , Toshinari Nagai , Yasuhiro Oi , Naoto Kato
发明人： Koji Ide , Toshinari Nagai , Yasuhiro Oi , Naoto Kato
IPC分类号： F01N3/00
CPC分类号： F02D41/1479 , F01N3/101 , F01N13/009 , F01N13/0093 , F01N2570/16 , F02D41/0295 , F02D41/2454 , F02D2200/0814 , F02D2200/0816 , Y02T10/22
摘要： An exhaust gas control apparatus and an exhaust gas purification method are for an internal combustion engine provided with a first catalyst portion disposed in an exhaust passage of the internal combustion engine, and a second catalyst portion disposed in the exhaust passage downstream of the first catalyst portion. A value that changes according to at least an amount of oxygen stored in the first catalyst portion is obtained as an obtained value. An air-fuel ratio of the internal combustion engine is controlled such that the obtained value matches a target value. A value that changes according to at least an amount of oxygen stored in the second catalyst portion is calculated as a calculated value, based on at least a state of exhaust gas flowing into the second catalyst portion. The target value is changed according to the calculated value. Accordingly, harmful components, such as unburned components and oxides of nitrogen, are able to be effectively purified even if the air-fuel ratio of the internal combustion engine changes abruptly.
摘要翻译：排气控制装置和废气净化方法用于内燃机，该内燃机设置有设置在内燃机的排气通道中的第一催化剂部分和设置在第一催化剂部分下游的排气通道中的第二催化剂部分。获得根据至少存储在第一催化剂部分中的氧气量而变化的值。控制内燃机的空燃比，使得获得的值与目标值一致。基于至少流入第二催化剂部分的废气的状态，计算根据至少存储在第二催化剂部分中的氧的量而变化的值作为计算值。目标值根据计算值进行更改。因此，即使内燃机的空燃比突然变化，也能够有效地净化有害成分，例如未燃烧成分和氮氧化物。

4. 发明授权

US06901744B2 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：US06901744B2
公开(公告)日：2005-06-07
申请号：US10212105
申请日：2002-08-06
申请人： Junichi Kako , Toshinari Nagai , Naohide Fuwa , Kazunori Kojima , Akihiro Katayama , Naoto Kato
发明人： Junichi Kako , Toshinari Nagai , Naohide Fuwa , Kazunori Kojima , Akihiro Katayama , Naoto Kato
IPC分类号： F02D45/00 , B01D53/86 , F01N3/20 , F01N3/24 , F02D41/02 , F02D41/04 , F02D41/14 , F01N3/00
CPC分类号： F01N11/007 , F02D41/0295 , F02D41/047 , F02D41/1441 , F02D41/1456 , F02D2041/1422 , F02D2200/0814 , F02D2200/0816 , Y02T10/47
摘要： An air-fuel ratio control apparatus of an internal combustion engine according to the present invention is provided with oxygen storage amount estimating means, downstream exhaust air-fuel ratio detecting means, maximum oxygen storage amount estimating means, and air-fuel ratio target setting means. The oxygen storage amount estimating means estimates an oxygen storage amount of an exhaust purifying catalyst, based on a history of an oxygen adsorption/desorption amount of the exhaust purifying catalyst located on an exhaust path. The downstream exhaust air-fuel ratio detecting means is located downstream of the exhaust purifying catalyst and detects an exhaust air-fuel ratio downstream of the exhaust purifying catalyst. The maximum oxygen storage amount estimating means estimates a maximum oxygen storage amount, based on an oxygen storage amount estimate when the exhaust air-fuel ratio detected is a predetermined air-fuel ratio. This permits effective utilization of oxygen occlusion capability of the exhaust purifying catalyst and improvement in exhaust purification performance.
摘要翻译：根据本发明的内燃机的空燃比控制装置设置有储氧量估计装置，下游排气空燃比检测装置，最大氧气存储量估计装置和空燃比目标设定装置。氧气存储量估计装置基于位于排气路径上的排气净化催化剂的氧吸附/脱附量的历史来估计排气净化催化剂的氧气存储量。下游排气空燃比检测装置位于排气净化催化剂的下游，并且检测排气净化催化剂下游的排气空燃比。最大氧气存储量估计装置基于当检测到的排气空燃比为预定空燃比时的氧气存储量估计值来估计最大氧气存储量。这样可以有效地利用排气净化催化剂的吸氧能力，提高排气净化性能。

5. 发明授权

US06860101B2 Exhaust gas purification system for internal combustion engine 有权
标题翻译：内燃机排气净化系统
公开(公告)号：US06860101B2
公开(公告)日：2005-03-01
申请号：US10266582
申请日：2002-10-09
申请人： Junichi Kako , Toshinari Nagai , Naoto Katoh , Akihiro Katayama , Kentaro Matsumoto , Shinji Kojima , Naoki Baba
发明人： Junichi Kako , Toshinari Nagai , Naoto Katoh , Akihiro Katayama , Kentaro Matsumoto , Shinji Kojima , Naoki Baba
IPC分类号： F01N3/08 , F02D41/02 , F01N3/00
CPC分类号： F01N3/0842 , F01M2250/66 , F02D41/0275 , F02D2200/0806 , F02D2200/0811
摘要： An exhaust gas purification system comprises a NOx catalyst for absorbing the NOx in the exhaust gas when the air-fuel ratio of the influent exhaust gas is lean and purifying by reducing the absorbed NOx with a reducing agent in the exhaust gas when the air-fuel ratio of the exhaust gas turns rich, a first unit for calculating the amount of NOx absorbed per unit time in each area of the NOx catalyst when the air-fuel ratio of the exhaust gas flowing into the NOx catalyst is lean, and a second unit for calculating the total amount of NOx absorbed into the NOx catalyst by totaling the amounts of NOx calculated by the first calculation unit for the areas of the NOx catalyst.
摘要翻译：废气净化系统包括：NOx吸收剂，其用于吸收废气中的NOx，当排出的废气的空燃比为稀的时，通过在空气燃料中排气中的还原剂还原吸收的NOx，排气的比例变浓，当流入NOx催化剂的废气的空燃比变稀时，用于计算NOx催化剂的每个区域中每单位时间吸收的NOx的量的第一单元，以及第二单元用于计算通过对由NOx催化剂的面积计算出的由第一计算单元计算的NOx的量来计算吸收到NOx催化剂中的NOx的总量。

6. 发明授权

US06792750B2 Emission control apparatus of internal combustion engine and control method for the emission control apparatus 失效
标题翻译：内燃机排放控制装置及排放控制装置的控制方法
公开(公告)号：US06792750B2
公开(公告)日：2004-09-21
申请号：US10224384
申请日：2002-08-21
申请人： Toshinari Nagai , Naoto Kato , Akihiro Katayama , Kentaro Matsumoto , Shinji Kojima , Naoki Baba
发明人： Toshinari Nagai , Naoto Kato , Akihiro Katayama , Kentaro Matsumoto , Shinji Kojima , Naoki Baba
IPC分类号： F01N300
CPC分类号： B60W10/06 , B01D53/9495 , B60K6/445 , B60L11/126 , B60L11/14 , B60L15/2045 , B60L2220/14 , B60L2240/423 , B60L2240/443 , B60L2240/445 , B60L2270/12 , B60W2510/0676 , B60W2510/068 , B60W2710/0622 , F01N3/0807 , F01N3/20 , F01N2570/10 , F01N2570/12 , F01N2570/16 , F02D17/04 , F02D41/0235 , F02D41/0295 , F02D41/042 , F02D2200/0814 , F02D2200/0816 , Y02A50/2322 , Y02T10/6217 , Y02T10/6239 , Y02T10/645 , Y02T10/7077 , Y02T10/72 , Y02T10/7283
摘要： A catalytic emission control apparatus of an internal combustion engine that has an engine stop mode of stopping the internal combustion engine during a run of a vehicle utilizes an oxygen absorption-storage action of an emission control catalyst disposed in an exhaust passage of the internal combustion engine. The emission control apparatus has a storage computing device that computes a storage of oxygen in the emission control catalyst, and air-fuel ratio controller performs an air-fuel ratio control of the internal combustion engine based on the storage of oxygen computed by the storage computing device. The storage computing device computes the storage of oxygen during the engine stop mode of the internal combustion engine. The air-fuel ratio controller performs the air-fuel ratio control when the internal combustion engine is restarted after the engine stop mode is discontinued, based on the storage of oxygen computed by the storage computing device during the engine stop mode.
摘要翻译：具有在车辆行驶期间停止内燃机的发动机停止模式的内燃机的催化排放控制装置利用设置在内燃机的排气通道中的排放控制催化剂的氧吸收储存动作。排放控制装置具有计算排放控制催化剂中的氧气的存储的存储计算装置，空燃比控制装置根据由存储运算计算出的氧气的储存来进行内燃机的空燃比控制设备。存储计算装置在内燃机的发动机停止模式期间计算氧气的储存。基于在发动机停止模式期间由存储计算装置计算的氧气的储存，空燃比控制器在停止发动机停止模式之后重新启动内燃机时执行空燃比控制。

7. 发明授权

US5577486A Fuel-injection control apparatus for an engine 失效
标题翻译：发动机燃油喷射控制装置
公开(公告)号：US5577486A
公开(公告)日：1996-11-26
申请号：US422978
申请日：1995-04-17
申请人： Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiko Iwano , Shuji Yuda , Takayuki Demura
发明人： Kenji Harima , Toshinari Nagai , Hiroshi Kanai , Akinori Osanai , Kazuhiko Iwano , Shuji Yuda , Takayuki Demura
IPC分类号： F02D45/00 , F02D41/14
CPC分类号： F02D41/2477 , F02D41/2454 , F02D41/2441
摘要： This fuel injection control apparatus consists of a calculating device for calculating an air-fuel ratio correction factor FAF, a learning device for learning an air-fuel ratio learning factor KG in accordance with the deviation of FAF from the reference value, and a controller for controlling the amount of injected fuel in accordance with FAF and KG. When the start enrichment FASE and the warm-up enrichment FWL are added, KG is learned in accordance with the corrected deviation which is the deviation of FAF corrected by the correction factor f(FASE+FWL) which is concerned with FASE and FWL. The learning accuracy is improved because KG is learned at each region of FWL which is divided into plural regions in accordance with the engine driving conditions.
摘要翻译：该燃料喷射控制装置由用于计算空燃比校正系数FAF的计算装置，用于根据FAF与参考值的偏差来学习空燃比学习系数KG的学习装置，以及控制器根据FAF和KG控制注入燃料的量。当添加开始浓缩FASE和预热浓缩FWL时，根据校正偏差来校正KG，该校正偏差是通过与FASE和FWL有关的校正因子f（FASE + FWL）校正的FAF的偏差。由于在根据发动机驾驶条件被分成多个区域的FWL的各个区域学习KG，因此学习精度得到改善。

8. 发明授权

US5481462A Apparatus for determining an altitude condition of an automotive vehicle 失效
标题翻译：用于确定机动车辆的高度状态的装置
公开(公告)号：US5481462A
公开(公告)日：1996-01-02
申请号：US132317
申请日：1993-10-06
申请人： Toshinari Nagai
发明人： Toshinari Nagai
IPC分类号： F02D21/08 , F02D41/00 , F02D41/24 , F02D41/32 , G06F19/00 , G06G7/70
CPC分类号： F02D41/0072 , F02D41/28 , F02D41/32 , F02D2200/704 , Y02T10/47
摘要： An altitude determining apparatus for an automotive vehicle includes a calculating part for determining a reference flow rate based on a throttle angle of a throttle valve and an engine speed of an internal combustion engine of the vehicle, the throttle angle being sensed from the throttle valve arranged in an intake passage of the engine and the engine speed being sensed from the engine, a correction part for detecting an operating condition under which additive gas is supplied to the intake passage downstream of the throttle valve and for changing the reference flow rate determined by the calculating part to a second reference flow rate according to the operating condition only when the above mentioned operating condition is detected, and a discriminating part for comparing an intake air flow rate sensed at an inlet portion of the intake passage with a reference flow rate supplied from the correction part and for determining an altitude condition of the vehicle based on the result of the comparison.
摘要翻译：用于机动车辆的高度确定装置包括：计算部件，用于基于节气门的节气门角度和车辆的内燃机的发动机转速来确定参考流量，所述节气门角度从所设置的节气门检测在发动机的进气通道和从发动机检测到的发动机转速的校正部分，用于检测向节流阀下游的进气通道供给添加气体的操作状态的修正部分，以及用于改变由所述发动机确定的参考流量仅当检测到上述操作条件时，根据操作条件将部分计算到第二参考流量;以及判别部分，用于将在进气通道的入口部分处感测的进气流量与从所述校正部件和用于根据所述结果确定所述车辆的高度状态比较。

9. 发明授权

US4831838A Double air-fuel ratio sensor system carrying out learning control operation 失效
标题翻译：双重空燃比传感器系统进行学习控制操作
公开(公告)号：US4831838A
公开(公告)日：1989-05-23
申请号：US124412
申请日：1987-11-17
申请人： Toshinari Nagai , Takatoshi Masui , Yasushi Satou , Toshiyasu Katsuno
发明人： Toshinari Nagai , Takatoshi Masui , Yasushi Satou , Toshiyasu Katsuno
IPC分类号： F02D41/14 , F02D41/24
CPC分类号： F02D41/2454 , F02D41/1441
摘要： In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, an actual air-fuel ratio is adjusted in accordance with the outputs of the upstream-side and downstream-side air-fuel ratio sensors including an air-fuel ratio correction amount. Also, a learning correction amount is calculated so that a mean value of the air-fuel ratio correction amount is brought close to a reference value. The actual air-fuel ratio is further adjusted in accordance with the learning correction amount.
摘要翻译：在设置在废气通道中的催化剂转化器的上游和下游的两个空燃比传感器系统中，实际空燃比根据上游侧和下游侧的输出进行调整，包括空燃比校正量的侧面空燃比传感器。此外，计算学习校正量，使得空燃比校正量的平均值接近参考值。根据学习校正量进一步调整实际的空燃比。

10. 发明授权

US4823270A Method and apparatus for controlling air-fuel ratio in internal combustion engine 失效
标题翻译：用于控制内燃机空燃比的方法和装置
公开(公告)号：US4823270A
公开(公告)日：1989-04-18
申请号：US927589
申请日：1986-11-06
申请人： Toshinari Nagai
发明人： Toshinari Nagai
IPC分类号： F02D41/00 , F02D41/14 , F02M51/00
CPC分类号： F02D41/1484
摘要： In an internal combustion engine having an air-fuel ratio sensor in an exhaust pipe thereof and a signal processing circuit for an output of the air-fuel ratio sensor, a air-fuel ratio correction amount is regulated within a range defined by a lower limit value and a upper limit value, and the air-fuel ratio of the engine is adjusted by the air-fuel ratio correction amount, and one of the limit values is varied in accordance with a running state parameter of the engine.
摘要翻译：在其排气管中具有空燃比传感器的内燃机和用于空燃比传感器的输出的信号处理电路中，将空燃比校正量调节在由下限限定的范围内值和上限值，并且通过空燃比校正量调节发动机的空燃比，并且根据发动机的行驶状态参数来改变其中一个极限值。

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