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1. 发明专利

JP2007211598A Air-fuel ratio control device of internal combustion engine 有权
标题翻译：内燃机空燃比控制装置
公开(公告)号：JP2007211598A
公开(公告)日：2007-08-23
申请号：JP2006029535
申请日：2006-02-07
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIZOGUCHI HIROAKI , FUJIWARA TAKAHIKO , NAKADA KUNIHIKO , SAKURAI KENJI , ICHINOSE HIROKI , KAWAI MASAAKI , HIRATA ATSUSATO
IPC分类号： F02D41/06 , F01N3/20 , F01N3/24 , F02D45/00
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： PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device of an internal combustion engine capable of reducing the discharged amount of NOx into the atmosphere when heating a three-way conversion catalyst device quickly to a catalyst activation temperature immediately after starting the engine.
SOLUTION: During the start of the engine, the combustion air-fuel ratio is set leaner than the theoretical air-fuel ratio (time t1). When only the exhaust upstream part of the three-way conversion catalyst device disposed in an engine exhaust system is determined to be heated to the catalyst activation temperature (time t2), the combustion air-fuel ratio is set richer than the theoretical air-fuel ratio to increase the temperature of the exhaust downstream part of the three-way conversion catalyst device.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的空燃比控制装置，其能够在立即将三通转化催化剂装置快速加热到催化剂活化温度时将NOx的排出量减少到大气中启动发动机。解决方案：在发动机启动期间，燃烧空燃比设定为比理论空燃比（时间t1）更稀。当仅排放在发动机排气系统中的三元转化催化剂装置的排气上游部分被确定为加热到催化剂活化温度（时间t2）时，燃烧空燃比被设定为比理论空气燃料比率来提高三元转化催化剂装置的排气下游部分的温度。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007107495A Exhaust emission control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2007107495A
公开(公告)日：2007-04-26
申请号：JP2005301596
申请日：2005-10-17
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKADA KUNIHIKO
IPC分类号： F01N3/24 , B01D53/86 , B01D53/94 , B01J38/00
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine which is hardly influenced by the deterioration of an exhaust purifying catalyst easily even at a time of cold start of the internal combustion engine, and keeping exhaust emission control performance high. SOLUTION: This exhaust emission control device is provided with the exhaust purifying catalyst 20 arranged in an engine exhaust passage, and exhaust gas flows in the exhaust purifying catalyst from an upstream side end part and flows out of the same from a downstream side end part. Moreover, the exhaust emission control device is provided with a grinding means 30 grinding the upstream side end part of the exhaust purifying catalyst by moving on the upstream side end part of the exhaust purifying catalyst dyeing operation of the internal combustion engine. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使在内燃机的冷起动时，也容易提供即使在内燃机的冷启动时也容易受到排气净化催化剂的劣化的影响的内燃机的排气排放控制装置，并且保持废气排放控制性能高。解决方案：该废气排放控制装置设置有布置在发动机排气通道中的排气净化催化剂20，排气从上游侧端部流入排气净化催化剂，并从排气净化催化剂20的下游侧流出结束部分。此外，废气排放控制装置设置有研磨装置30，其通过在内燃机的排气净化催化剂染色操作的上游侧端部移动来研磨排气净化催化剂的上游侧端部。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2005291148A Power output device 审中-公开
标题翻译：电源输出设备
公开(公告)号：JP2005291148A
公开(公告)日：2005-10-20
申请号：JP2004109877
申请日：2004-04-02
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FUJIWARA TAKAHIKO , NAKADA KUNIHIKO , ICHINOSE HIROKI , HIRATA ATSUSATO
IPC分类号： F01N3/24
摘要： PROBLEM TO BE SOLVED: To prevent emission of a product containing sulfur to the outside in a power output device including an engine or the like.
SOLUTION: This device comprises the engine (150) connected with an exhaust pipe, a plurality of catalyst devices (31, 32) for purifying exhaust gas discharged from the engine, a bypass passage (301) bypassing an upstream side and a downstream side of at least one of the plurality of catalyst devices and a switching valve (302, 303) for setting an exhaust gas flow passage switchable to at least one of the bypass passage and the catalyst device (32) bypassed by it. This device comprises a sensor (52) for detecting an air-fuel ratio in the exhaust pipe and a control means (170) for switching the switching valve so that the exhaust gas flows from the catalyst device to the bypass passage when load acting on the engine is equal to or less than a predetermined value and the air-fuel ration in the exhaust pipe is detected to be rich by the sensor.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在包括发动机等的动力输出装置中将含硫产物向外部发射。解决方案：该装置包括与排气管连接的发动机（150），用于净化从发动机排出的排气的多个催化剂装置（31,32），绕过上游侧的旁通通路（301）所述多个催化剂装置中的至少一个的下游侧和用于设定旁通通路和所述催化剂装置（32）中的至少一个旁通的排气流路的切换阀（302,303）。该装置包括用于检测排气管中的空燃比的传感器（52）和用于切换切换阀的控制装置（170），使得当作用在排气管上的负载作用时，排气从催化剂装置流动到旁通通道发动机等于或小于预定值，并且通过传感器检测排气管中的空燃比浓。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005299588A Air fuel ratio control device 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：JP2005299588A
公开(公告)日：2005-10-27
申请号：JP2004120073
申请日：2004-04-15
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FUJIWARA TAKAHIKO , NAKADA KUNIHIKO , ICHINOSE HIROKI , HIRATA ATSUSATO
IPC分类号： F02D45/00 , F02D41/02 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To enable suppression of deterioration of a catalyst inlet part due to reaction heat while maintaining purifying capability of an exhaust gas purifying catalyst high in an air fuel ratio control device for an internal combustion engine.
SOLUTION: When an exhaust gas air fuel ratio at downstream of an exhaust gas purifying catalyst gets rich, firstly, the air fuel ratio is switched to a rich initial target air fuel ratio AO1 on the stoichiometric side more than a rich final target air fuel ratio A1, and thereafter changed from the rich initial target air-fuel ratio AO1 to the rich final target air fuel ratio A1. When an exhaust gas air fuel ratio gets lean, firstly, the air fuel ratio is switched to a lean initial target air fuel ratio A02 on the stoichiometric side more than a lean final target air fuel ratio A2, and thereafter it is changed from the lean initial target air fuel ratio A02 to the lean final target air fuel ratio A2.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了能够抑制由反应热引起的催化剂入口部分的劣化，同时保持内燃机的空燃比控制装置中的排气净化催化剂的净化能力高。解决方案：当废气净化催化剂下游的排气空燃比变浓时，首先，空燃比在化学计量方面比丰富的最终目标转换为丰富的初始目标空燃比AO1 空燃比A1，然后从丰富的初始目标空燃比AO1变为浓最终目标空燃比A1。当废气空燃比变稀时，首先，将空燃比转换为比最终目标空燃比A2低的化学计量侧的稀初始目标空燃比A02，然后从稀初始目标空燃比A02与最终目标空燃比A2的关系。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2010163932A Catalyst degradation diagnostic device for internal combustion engine 审中-公开
标题翻译：用于内燃机的催化降解诊断装置
公开(公告)号：JP2010163932A
公开(公告)日：2010-07-29
申请号：JP2009005946
申请日：2009-01-14
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKADA KUNIHIKO , YOSHIOKA MAMORU
IPC分类号： F01N3/20 , F01N3/24 , F02D41/02 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a catalyst degradation diagnostic device for an internal combustion engine, which considers degradation levels of both upstream catalyst and downstream catalyst. SOLUTION: An ECU 4 calculates an accumulated degradation level of the upstream catalyst 38 disposed on the upstream side of an exhaust passage 36, calculates an accumulated degradation level of the downstream catalyst 40 disposed on the downstream side from the upstream catalyst 38, calculates an oxygen storage capacity of the upstream catalyst 38, calculates an oxygen storage capacity of the downstream catalyst 40 based on the accumulated degradation levels of the upstream catalyst 38 and the downstream catalyst 40 and the oxygen storage capacity of the upstream catalyst 38, and diagnoses degradation of the upstream catalyst 38 and the downstream catalyst 40 based on the oxygen storage capacities of the upstream catalyst 38 and the downstream catalyst 40. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种考虑上游催化剂和下游催化剂的降解水平的用于内燃机的催化剂降解诊断装置。解决方案：ECU4计算设置在排气通道36的上游侧的上游催化剂38的累积劣化水平，计算下游催化剂40与上游催化剂38的下游侧的累积劣化水平，计算上游催化剂38的储氧能力，基于上游催化剂38和下游催化剂40的累积降解水平和上游催化剂38的储氧能力，计算下游催化剂40的储氧容量，基于上游催化剂38和下游催化剂40的储氧容量，上游催化剂38和下游催化剂40的降解。（C）2010，JPO＆INPIT

6. 发明专利

JP2005248869A Exhaust emission control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2005248869A
公开(公告)日：2005-09-15
申请号：JP2004061400
申请日：2004-03-04
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKADA KUNIHIKO , FUJIWARA TAKAHIKO , HIRATA ATSUSATO
IPC分类号： F01N3/22 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To secure sufficient air quantity for suppressing sulfur odor by supplying secondary air. SOLUTION: An electric air pump 21 supplying secondary air is connected to an exhaust pipe 15 on a downstream side of a storage type NOx catalyst 14 which is the most downstream catalyst device in an exhaust gas passage. Sulfur component released from the storage type NOx catalyst 14 with accompanying rich atmosphere of exhaust gas is oxidized or burnt by oxygen in secondary air (2H 2 S+3O 2 →2SO 2 +2H 2 O) to suppress sulfur odor. Influence on exhaust pressure due to circulation resistance of the catalyst device in relation to supply of secondary air can be suppressed and sufficient air quantity can be secured. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过供应二次空气来确保足够的空气量来抑制硫气味。解决方案：在排气通道中作为最下游的催化剂装置的存储型NOx催化剂14的下游侧的排气管15上连接有供给二次空气的电动空气泵21。从存储型NOx催化剂14释放出的含有排气浓度的气体的硫成分在二次空气中被氧氧化或燃烧（2H 2 S + 3O 2 SB> 2 + 2H 2 O）以抑制硫气味。可以抑制由于催化剂装置的循环阻力而相对于二次空气的供给对排气压力的影响，并且可以确保足够的空气量。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004150421A Exhaust emission control device of internal combustion engine 审中-公开
公开(公告)号：JP2004150421A
公开(公告)日：2004-05-27
申请号：JP2003020898
申请日：2003-01-29
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKADA KUNIHIKO
IPC分类号： F01N3/24 , B01D53/86 , F01N3/20 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine capable of purifying exhaust gas at least at a catalyst portion hardly deteriorated at a warm-up time of an internal combustion engine. SOLUTION: In this exhaust emission control device of an internal combustion engine, a catalyst 11 is built in a case 16. An exhaust control valve 13 for changing an area contacting with an exhaust upstream face of the catalyst when the exhaust gas flows in the catalyst is installed on the exhaust upstream side of the catalyst in the case. There is provided with a means for detecting a warm-up condition of the catalyst. After the warming of the catalyst is completed, the exhaust control valve is closed, so as to reduce an area where the exhaust gas contacts with the exhaust upstream face of the catalyst. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2002371836A Exhaust emission control device of internal combustion engine 有权
标题翻译：内燃机排气控制装置
公开(公告)号：JP2002371836A
公开(公告)日：2002-12-26
申请号：JP2002007700
申请日：2002-01-16
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKADA KUNIHIKO
IPC分类号： F02D43/00 , F01N3/20 , F01N3/22 , F01N3/32 , F01N13/04 , F02D41/02 , F02D41/12 , F02D45/00
CPC分类号： F01N3/2046 , F01N3/22 , F01N13/011 , F01N13/107 , F02D41/0235 , F02D41/123 , F02D2200/0802 , Y02T10/26
摘要： PROBLEM TO BE SOLVED: To restrain deterioration of a catalyst for exhaust emission control. SOLUTION: Fresh air supply to the catalyst 3 for exhaust emission control from a secondary air supply device is started before fuel cut is actually practiced after a fuel cut practicing condition is established in the case of speedily lowering temperature of the catalyst 3 by supplying fresh air thereto by the secondary air supply device 7 at the time of engine decelerating drive on an exhaust emission control device of an internal combustion engine in which the catalyst 3 is arranged in an engine exhaust passage 2. Consequently, the catalyst temperature is lowered when the fuel cut is practiced and an exhaust gas air fuel ratio becomes lean, and the catalyst is prevented from being exposed in a deteriorating condition of a high temperature lean air fuel ratio.
摘要翻译：要解决的问题：抑制废气排放控制用催化剂的劣化。解决方案：在通过供应新鲜空气快速降低催化剂3的温度的情况下建立燃料切割实践条件之后，开始在二次空气供应装置进行废气排放控制的催化剂3的新鲜空气供应在发动机减速驱动时，二次空气供给装置7在内燃机的排气排放控制装置上，催化剂3配置在发动机排气通路2内。因此，当燃料切断，废气空燃比变稀，防止在高温稀空燃比恶化条件下使催化剂露出。

9. 发明专利

JP2006336530A Exhaust emission control device 审中-公开
标题翻译：排气排放控制装置
公开(公告)号：JP2006336530A
公开(公告)日：2006-12-14
申请号：JP2005161659
申请日：2005-06-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKADA KUNIHIKO , FUJIWARA TAKAHIKO , HIRATA ATSUSATO
IPC分类号： F02D41/04 , B01D53/86 , B01D53/94 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To appropriately purify exhaust gas discharged from an internal combustion engine by an exhaust emission control device. SOLUTION: The exhaust emission control device is arranged in a middle of an exhaust pipe of an internal combustion engine and is provided with a catalyst purifying exhaust gas discharged via the exhaust pipe, a retarding means retarding stop of operation of the internal combustion engine by a predetermined retarded period when a command to stop operation is issued to the internal combustion engine and a control means controlling the internal combustion engine to make exhaust gas air fuel ratio lean during retarded period. COPYRIGHT: (C)2007,JPO&INPIT

10. 发明专利

JP2005299587A Air fuel ratio control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的空燃比控制装置
公开(公告)号：JP2005299587A
公开(公告)日：2005-10-27
申请号：JP2004120072
申请日：2004-04-15
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： FUJIWARA TAKAHIKO , NAKADA KUNIHIKO , ICHINOSE HIROKI , HIRATA ATSUSATO
IPC分类号： F02D45/00 , B01D53/94 , F01N3/20 , F01N3/24 , F02D41/04 , F02D41/14
摘要： PROBLEM TO BE SOLVED: To exert maximum capacity of purification of an exhaust purifying catalyst, regarding an air fuel ratio control device for an internal combustion engine. SOLUTION: If the output signal of an exhaust gas sensor is changed to the rich side more than a predetermined rich determination value Vr, a target air fuel ratio of the internal combustion engine is switched to the lean side more than the stoichiometric one. If the output signal of an exhaust gas sensor is changed to the lean side more than a predetermined lean determination value Vl, a target air fuel ratio of the internal combustion engine is switched to the rich side more than the stoichiometric one. The higher oxygen storage capacity (OSC) of an exhaust gas catalyst is, the richer the rich determination value Vr is set and the leaner the lean determination value Vl is set. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了发挥排气净化催化剂的最大净化能力，关于内燃机的空燃比控制装置。解决方案：如果排气传感器的输出信号变为富侧超过预定的浓度判定值Vr，则内燃机的目标空燃比被切换到稀化侧超过理论空燃比。如果废气传感器的输出信号比预定的稀薄度确定值V1更改为稀薄侧，则内燃机的目标空燃比被转换为比理论空燃比更大的浓侧。废气催化剂的较高的储氧能力（OSC）越来越多的确定值Vr被设定得越浓，稀薄的确定值V1被设定得越少。版权所有（C）2006，JPO＆NCIPI

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