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1. 发明申请

US20030046927A1 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：US20030046927A1
公开(公告)日：2003-03-13
申请号：US10224384
申请日：2002-08-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Toshinari Nagai , Naoto Kato , Akihiro Katayama , Kentaro Matsumoto , Shinji Kojima , Naoki Baba
IPC分类号： F01N003/00
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，空燃比控制器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。

2. 发明申请

US20020194840A1 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：US20020194840A1
公开(公告)日：2002-12-26
申请号：US10212105
申请日：2002-08-06
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Junichi Kako , Toshinari Nagai , Naohide Fuwa , Kazunori Kojima , Akihiro Katayama , Naoto Kato
IPC分类号： F01N003/00
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。

3. 发明申请

US20030225504A1 Apparatus and method for detecting misfire in internal combustion engine 失效
标题翻译：用于检测内燃机失火的装置和方法
公开(公告)号：US20030225504A1
公开(公告)日：2003-12-04
申请号：US10445886
申请日：2003-05-28
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Akihiro Katayama
IPC分类号： G06F019/00 , F02P005/00
CPC分类号： G01M15/11
摘要： An ECU defines consecutively ignited three cylinders as first, second and third subject cylinders. The ECU first adds up the rotation fluctuation amount at the second subject cylinder and the rotation fluctuation amount at the third subject cylinder and sets the resultant as an added-up fluctuation amount. The ECU then determines whether the type of an occurring misfire is a single-cylinder misfire based on the added-up fluctuation amount. When the type of the occurring misfire is not a single-cylinder misfire, the ECU obtains the difference between the rotation fluctuation amount at the second subject cylinder and the rotation fluctuation amount at the third subject cylinder as a fluctuation amount deviation. Then, the ECU determines whether the type of the occurring misfire is a consecutive-two-cylinder misfire or an intermittent-two-cylinder misfire based on the fluctuation amount deviation. As a result, for any kind of a rotation fluctuation pattern caused by a misfire, the type of a misfire is accurately determined.
摘要翻译： ECU将连续点燃的三个气缸定义为第一，第二和第三主体气缸。 ECU首先将第二被摄体筒的旋转变动量和第三被摄体气缸的旋转变动量相加，将其作为相加的变动量进行设定。然后，ECU基于加起来的波动量确定发生的失火的类型是否是单缸失火。当发生的失火的类型不是单缸失火时，ECU获得第二被摄体筒的旋转变动量与第三被摄体筒的旋转变动量之差作为变动量偏差。然后，ECU基于变动量偏差来判断发生的失火的类型是连续的二缸失火还是间歇二缸失火。结果，对于由失火引起的任何种类的旋转波动模式，准确地确定失火的类型。

4. 发明申请

US20030070419A1 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：US20030070419A1
公开(公告)日：2003-04-17
申请号：US10266582
申请日：2002-10-09
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Junichi Kako , Toshinari Nagai , Naoto Katoh , Akihiro Katayama , Kentaro Matsumoto , Shinji Kojima , Naoki Baba
IPC分类号： F01N003/00 , F01N007/00 , F01N003/10
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。

5. 发明申请

US20020078683A1 Air-Fuel ratio control system for internal combustion engine and control method thereof 失效
标题翻译：内燃机空燃比控制系统及其控制方法
公开(公告)号：US20020078683A1
公开(公告)日：2002-06-27
申请号：US10025452
申请日：2001-12-26
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Akihiro Katayama , Toshinari Nagai , Akira Kamoto , Naoto Kato , Shinji Kojima , Naoki Baba
IPC分类号： F01N003/00 , F01N007/00
CPC分类号： F02D41/1474 , F01N13/009 , F01N13/011 , F02D41/0295 , F02D41/1441 , F02D41/1456 , F02D2200/0802 , F02D2200/0814
摘要： An air-fuel ratio control system for an internal combustion engine estimates an oxygen storage amount of a catalyst based on a record of an oxygen storage amount, and controls an air-fuel ratio based on the estimated oxygen storage amount. The catalyst is divided into multiple sections in a flow direction of an exhaust gas, the oxygen storage amount in a specified section is estimated according to a behavior of an exhaust gas on upstream and downstream sides of the respective specified sections, and the air-fuel ratio is controlled based on the estimated oxygen storage amount in the specified section.
摘要翻译：用于内燃机的空燃比控制系统基于氧气存储量的记录来估计催化剂的储氧量，并且基于估计的氧气存储量来控制空燃比。催化剂在废气的流动方向被分成多个部分，根据在各个特定部分的上游和下游侧的废气的行为来估计特定部分中的氧气储存量，并且空气燃料基于规定部分中的估计氧气存储量来控制比率。

6. 发明申请

US20020043257A1 Control device of internal combustion engine and method of judging failure of sensor 失效
标题翻译：内燃机控制装置及传感器故障判定方法
公开(公告)号：US20020043257A1
公开(公告)日：2002-04-18
申请号：US09969642
申请日：2001-10-04
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Naoto Kato , Toshinari Nagai , Akira Kamoto , Akihiro Katayama
IPC分类号： F02D041/00
CPC分类号： F02D41/1494 , F02D41/06 , F02D41/222 , Y02T10/40
摘要： In a control device, in a control device of an internal combustion engine provided with an internal combustion engine main body mounted to a vehicle and a heater operating on the basis of an output from a specific sensor given as a trigger at least before the internal combustion engine main body starts, whether or not the heater is operated before the start is stored, and it is judged that the sensor has failed when operation of the heater is not stored.
摘要翻译：在控制装置中，在设置有安装在车辆上的内燃机主体的内燃机的控制装置和至少在内燃前作为触发器的特定传感器的输出进行动作的加热器发动机主体启动，无论加热器是否在开始存储之前被操作，并且当不存储加热器的操作时，判断传感器发生故障。

7. 发明申请

US20020011068A1 Air-fuel ratio control apparatus of internal combustion engine 失效
公开(公告)号：US20020011068A1
公开(公告)日：2002-01-31
申请号：US09880029
申请日：2001-06-14
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Junichi Kako , Toshinari Nagai , Naohide Fuwa , Kazunori Kojima , Akihiro Katayama , Naoto Kato
IPC分类号： F01N003/00 , F01N007/00
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.

8. 发明申请

US20030017603A1 Catalyst deterioration detecting apparatus and method 失效
标题翻译：催化剂劣化检测装置及方法
公开(公告)号：US20030017603A1
公开(公告)日：2003-01-23
申请号：US10193900
申请日：2002-07-15
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Takahiro Uchida , Hiroshi Sawada , Toshinari Nagai , Akihiro Katayama , Yasuhiro Kuze , Naoto Kato
IPC分类号： G01N031/10 , G01N033/22
CPC分类号： F01N11/007 , B01D53/9495 , F01N2550/02 , F02D41/0295 , F02D41/1408 , F02D41/22 , F02D2200/0814 , F02D2200/0816 , Y02T10/40 , Y02T10/47 , Y10T436/20 , Y10T436/208339 , Y10T436/25875
摘要： An upstream side catalyst and a downstream side catalyst are disposed in an exhaust passage. A first oxygen sensor is disposed between these two catalysts and a second oxygen sensor is disposed downstream of the downstream side catalyst. The air-fuel ratio is forcibly oscillated and the oxygen storage capacity of the upstream side catalyst is detected. Deterioration of the upstream side catalyst is then detected based on whether this oxygen storage capacity is larger than a predetermined value. The forced oscillation of the air-fuel ratio is performed only when the oxygen storage state of the downstream side catalyst is appropriate.
摘要翻译：上游侧催化剂和下游侧催化剂设置在排气通道中。第一氧传感器设置在这两个催化剂之间，第二氧传感器设置在下游侧催化剂的下游。空燃比被强制振荡，并检测上游侧催化剂的储氧能力。然后基于该储氧容量是否大于预定值来检测上游侧催化剂的劣化。仅当下游侧催化剂的储氧状态适当时才进行空燃比的强制振荡。

9. 发明申请

US20020040577A1 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：US20020040577A1
公开(公告)日：2002-04-11
申请号：US09956992
申请日：2001-09-21
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Akira Kamoto , Toshinari Nagai , Akihiro Katayama , Naoto Kato
IPC分类号： F01N003/00 , F01N007/00
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 oxygen storage amount estimating means 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 control means performs such control that, when the oxygen storage amount is larger than the upper threshold, the control means controls the air-fuel ratio to a rich region and that, when the oxygen storage amount is smaller than the lower threshold, the control means 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氧气存储量估计装置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，空燃比控制装置进行这样的控制，即当氧气存储量大于上阈值时，控制装置将空燃比控制为富氧区域，并且当氧气存储量小于下限阈值时，控制装置将空燃比控制为贫气区域。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。

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