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1. 发明专利

JP2003166413A EXHAUST EMISSION CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003166413A
公开(公告)日：2003-06-13
申请号：JP2001367616
申请日：2001-11-30
申请人： TOYOTA MOTOR CORP , DENSO CORP , TOYOTA IND CORP
发明人： AOYAMA TARO , MATSUOKA HIROKI , SUGIYAMA TATSUMASA , OTSUBO YASUHIKO , ITO TAKEKAZU , TAWARA ATSUSHI , OKI MAMORU , YOKOYAMA MASAKUNI , KUSAJI HIDESHI , MIZUGUCHI KEIICHI
IPC分类号： F02D45/00 , B01D46/42 , B01D46/44 , B01D53/94 , F01N3/02 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To provide a technology which suppresses excessive degradation of the determination accuracy even when the PM trapping quantity of a trapping mechanism is not reflected in the pressure loss of the exhaust emission by the trapping mechanism in an exhaust emission control device of an internal combustion engine having the trapping mechanism to trap PM in the exhaust emission. SOLUTION: In the exhaust emission control device of the internal combustion engine which determines the PM trapping quantity of a particulate filter disposed in an exhaust system of the internal combustion engine with the differential pressure before and behind the particulate filter as a parameter, when the PM trapping quantity of the particulate filter is not reflected in the differential pressure before and behind the particulate filter, the PM trapping quantity is estimated based on the history of the differential pressure when the PM trapping quantity has been reflected. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003161140A EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003161140A
公开(公告)日：2003-06-06
申请号：JP2001361296
申请日：2001-11-27
申请人： TOYOTA MOTOR CORP , DENSO CORP , TOYOTA IND CORP
发明人： AOYAMA TARO , MATSUOKA HIROKI , SUGIYAMA TATSUMASA , OTSUBO YASUHIKO , ITO TAKEKAZU , TAWARA ATSUSHI , OKI MAMORU , YOKOYAMA MASAKUNI , KUSAJI HIDESHI , MIZUGUCHI KEIICHI
IPC分类号： F02D45/00 , B01D46/42 , B01D53/94 , F01N3/02 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To provide a technology capable of determining the regeneration timing of a trapping mechanism with high accuracy in an exhaust emission control device for an internal combustion engine provided with the trapping mechanism for trapping particulates such as a soot contained in an exhaust gas. SOLUTION: This exhaust emission control device for the internal combustion engine performs the regeneration treatment of a particulate filter provided that an exhaust pressure loss caused by the particulate filter installed in an exhaust passage of the engine exceeds a predetermined judgment reference value, and is characterized in that the judgment standard value is corrected in response to the pressure loss detected just after the particulate filter is regenerated. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2003166439A INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003166439A
公开(公告)日：2003-06-13
申请号：JP2001367118
申请日：2001-11-30
申请人： TOYOTA MOTOR CORP , DENSO CORP , TOYOTA IND CORP
发明人： ITO TAKEKAZU , MATSUOKA HIROKI , SUGIYAMA TATSUMASA , OTSUBO YASUHIKO , AOYAMA TARO , TAWARA ATSUSHI , OKI MAMORU , YOKOYAMA MASAKUNI , KUSAJI HIDESHI , MIZUGUCHI KEIICHI
IPC分类号： F02B1/12 , F02D21/08 , F02D41/02 , F02D41/30 , F02D41/38 , F02D41/40 , F02D43/00 , F02M25/07
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine provided with engine control technology capable of restricting pilot injection at low temperature combustion period and suppressing the occurrence of combustion noise caused by the inhibition of pilot injection. SOLUTION: This internal combustion engine 1 can switch low temperature combustion for operating the engine by burning intake gas having high EGR rate and ordinary combustion for operating the engine by burning intake gas having low EGR rate during the operation of the engine. In the internal combustion engine 1, pilot injection is performed in addition to main fuel injection. Furthermore, pilot injection is restricted during the operation of the engine by switching to low temperature combustion. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2003166433A INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003166433A
公开(公告)日：2003-06-13
申请号：JP2001366091
申请日：2001-11-30
申请人： TOYOTA MOTOR CORP , DENSO CORP , TOYOTA IND CORP
发明人： SUGIYAMA TATSUMASA , MATSUOKA HIROKI , AOYAMA TARO , OTSUBO YASUHIKO , ITO TAKEKAZU , TAWARA ATSUSHI , TARUSAWA YUKI , MIZUGUCHI KEIICHI , NARITA YUJI
IPC分类号： F02M25/07 , F01N3/08 , F01N3/24 , F02D21/08 , F02D41/02 , F02D41/40 , F02D43/00 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide technology for stabilizing a combustion condition when combustion is performed at a low temperature in an internal combustion engine. SOLUTION: This internal combustion engine is provided with an internal combustion engine 1, a fuel supply means 3 for supplying fuel to each cylinder 2 of the internal combustion engine 1, an EGR device 26, a combustion condition switching means 35 for selecting either of low temperature combustion for increasing an EGR gas amount further after an amount of recirculating EGR gas is increased and a generation amount of soot is increased and becomes the maximum and ordinary combustion for recirculating an amount of EGR gas smaller than the amount of EGR gas at which the generation amount of soot becomes the maximum and switching these combustion conditions, and a fuel correcting means 35 for determining correction values of respective fuel supply amounts in low temperature combustion and ordinary combustion per cylinder 2. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2003155921A EXHAUST EMISSION CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003155921A
公开(公告)日：2003-05-30
申请号：JP2001356202
申请日：2001-11-21
申请人： TOYOTA MOTOR CORP , DENSO CORP , TOYOTA IND CORP
发明人： AOYAMA TARO , MATSUOKA HIROKI , SUGIYAMA TATSUMASA , OTSUBO YASUHIKO , ITO TAKEKAZU , TAWARA ATSUSHI , OKI MAMORU , YOKOYAMA MASAKUNI , KUSAJI HIDESHI , MIZUGUCHI KEIICHI
IPC分类号： F01N3/02 , B01D46/42 , B01D53/94 , F01N3/08 , F01N3/18 , F01N3/24 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide a technology of favorably regenerate a particulate filter in an exhaust emission control device of an internal combustion engine equipped with the particulate filter. SOLUTION: In the exhaust emission control device of the internal combustion engine which estimate the PM trapping quantity of the particulate filter (29) provided in an exhaust passage of the internal combustion engine and determines the regeneration period of the particulate filter (29) according to the estimation, the regeneration period is corrected according to the actual regeneration state of the particulate filter (29) when performing the regeneration.

6. 发明专利

JP2002188428A EXHAUST GAS PURIFYING DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002188428A
公开(公告)日：2002-07-05
申请号：JP2000383818
申请日：2000-12-18
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： TAWARA ATSUSHI , MATSUSHITA SOICHI , OKI HISASHI , HAYASHI KOTARO , ISHIYAMA SHINOBU , KOBAYASHI MASAAKI , SHIBATA DAISUKE , MAGATA HISAFUMI , ODA TOMIHISA , HARADA YASUO , NEGAMI AKIHIKO , MATSUOKA HIROKI , OTSUBO YASUHIKO , AOYAMA TARO , UMEHARA HIROSHI
IPC分类号： F02D45/00 , B01D53/94 , F01N3/08 , F01N3/18
摘要： PROBLEM TO BE SOLVED: To provide a technology for detecting leakage of reducing agent in reducing agent feeding mechanism and prevent the reducing agent from wasting therewith, in the exhaust gas purifying device of an internal combustion engine equipped with the reducing agent feeding mechanism. SOLUTION: The exhaust gas purifying device of internal combustion engine provides an internal combustion engine of lean burn type 1, an exhaust gas purifying catalyst 20, reducing agent feeding mechanisms 28, 29, 30, 31, a means for detecting the reducing agent pressure 32 for detecting the reducing agent pressure of the region between a flow-regulation valve 30 in reducing agent feeding mechanisms 28, 29, 30, 31 and a shut-off valve 31 and a means for determining abnormality 35 for determining that the detected value of the means for detecting the reducing agent pressure is not greater than the pressure determined and that the reducing agent leaks from the reducing agent feeding mechanisms 28, 29, 30, 31, when the shut-off valve 31 is in the closed valve condition and the flow regulating valve 30 is in the closed valve condition.

7. 发明专利

JP2002168119A EXHAUST EMISSION CONTROL DEVICE FOR INERTIAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002168119A
公开(公告)日：2002-06-14
申请号：JP2000367557
申请日：2000-12-01
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： KOBAYASHI MASAAKI , MATSUSHITA SOICHI , OKI HISASHI , HAYASHI KOTARO , ISHIYAMA SHINOBU , SHIBATA DAISUKE , MAGATA HISAFUMI , ODA TOMIHISA , HARADA YASUO , NEGAMI AKIHIKO , MATSUOKA HIROKI , OTSUBO YASUHIKO , AOYAMA TARO , TAWARA ATSUSHI , UMEHARA HIROSHI
IPC分类号： F01N3/18 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/36 , F01N9/00 , F02B37/00 , F02M25/07
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device capable of detecting leakage of fuel added as a reducing agent. SOLUTION: This exhaust emission control device comprises a catalyst 20 for exhaust emission control provided in an exhaust system, a fuel adding apparatus 28 for adding fuel as a reducing agent to the catalyst 20 for exhaust emission control, a fuel supply source 6 for supplying fuel to the fuel adding apparatus 28, an emergency shutdown valve 31 formed by fitting the fuel supply source 6 on a fuel supply path 29 connected to the fuel adding apparatus 28, and a shutdown valve position detecting means for detecting that the emergency shutdown valve 31 is at a closed position. If fuel pressure on the upstream side acting on the emergency shutdown valve 31 is larger than that in the downstream, there is a possibility of fuel leakage, therefore the emergency shutdown valve 31 is controlled so as not to open even when an opening command is outputted. When an exhaust air-fuel ratio is not changed to the rich side even if a fuel adding command is outputted, added fuel leakage can be detected in the downstream of the emergency cutoff valve 31.

8. 发明专利

ES2315334T3 UN MOTOR DE COMBUSTION INTERNA Y METODO DE CONTROL DEL MISMO. 未知
公开(公告)号：ES2315334T3
公开(公告)日：2009-04-01
申请号：ES02026590
申请日：2002-11-28
申请人： TOYOTA MOTOR CO LTD , DENSO CORP , TOYOTA JIDOSHOKKI KK
发明人： ITO TAKEKAZU , MATSUOKA HIROKI , SUGIYAMA TATSUMASA , OHTSUBO YASUHIKO , AOYAMA TARO , TAHARA JUN
IPC分类号： F02D21/08 , F02B1/12 , F02D41/02 , F02D41/30 , F02D41/38 , F02D41/40 , F02D43/00 , F02M25/07
摘要： Un motor de combustión interna (1) teniendo características de combustión en las cuales, cuando el porcentaje de un gas inerte contenido en la mezcla aire-combustible sujeto a la combustión se acerca a un valor predeterminado, un montante de ceniza generado durante la combustión alcanza gradualmente un pico, y el montante de cenizas generado disminuye cuando la proporción es incrementada mas allá, comprendiendo: Un sistema de conmutación del estado de combustión para conmutar el estado de primera combustión en el cual la generación de cenizas es suprimida suprimiendo el porcentaje de gas inerte por debajo de un valor predeterminado, y un estado de segunda combustión en la cual la generación de cenizas es suprimida manteniendo el porcentaje de gas inerte en un rango por encima de un valor predeterminado, Un sistema de control de inyección de combustible para hacer que ejecute un sistema de inyección de combustible del motor de combustión interna (1), además de la inyección principal de combustible para el motor de combustión interna (1), una inyección piloto que precede a la inyección principal de combustible y, Un sistema de control de la inyección piloto para prohibir una ejecución de la inyección piloto durante un periodo predeterminado incluyendo al menos un periodo de la segunda combustión Caracterizado porque el gas inerte es un gas EGR que retorna desde el pasaje de expulsión (19) al pasaje de admisión (9), sistema del conmutación el estado de combustión incluye medios de control del volumen de gas EGR 20 para controlar el volumen de gas EGR que retorna al pasaje de admisión (9), sistema de control de volumen de aire (13) para controlar un volumen de aire que fluye dentro de la cámara de combustión a través del pasaje de admisión (9), y sistema de control de exceso para que una vez se produzca el exceso un sistema de control del montante del volumen del gas EGR (26) para cuando se produzca el exceso y un sistema de control de volumen de aire (13) de acuerdo con estos requisitos para conmutar el estado de combustión así como para conmutar el estado de combustión en un estadio temprano, y sistema de control de la inyección de combustible incrementa temporalmente y corrige el volumen de inyección de combustible del motor de combustión interna (1) durante el periodo del estado de segunda combustión, y El sistema de control de la inyección piloto prohíbe, cuando se conmuta desde el estado de primera combustión al estado de segunda combustión, la inyección piloto después que se ejecuta un control de exceso por el mecanismo conmutador del estado de combustión y después que el volumen de inyección de combustible es incrementado y corregido por el mecanismo de control de la inyección de combustible.

9. 发明专利

DE60108345D1 未知
公开(公告)号：DE60108345D1
公开(公告)日：2005-02-17
申请号：DE60108345
申请日：2001-11-28
申请人： DENSO CORP , TOYOTA MOTOR CO LTD
发明人： KOBAYASHI MASAAKI , MATSUSHITA SOUICHI , OHKI HISASHI , HAYASHI KOTARO , ISHIYAMA SHINOBU , SHIBATA DAISUKE , MAGARIDA NAOFUMI , ODA TOMIHISA , HARADA YASUO , NEGAMI AKIHIKO , MATSUOKA HIROKI , OTSUBO YASUHIKO , AOYAMA TARO , TAHARA JUN , UMEHARA AKIRA
IPC分类号： F01N3/18 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/36 , F01N9/00 , F02B37/00 , F02M25/07 , F02D41/22
摘要： An exhaust gas purifying device of the invention comprises an exhaust gas purifying catalyst (20) disposed in an exhaust system, a fuel adding device (28) for adding fuel to the exhaust gas purifying catalyst (20) as a reducing agent, a fuel supplying source (6) for supplying the fuel adding device (28) with fuel, an emergency shut-off valve (31) disposed in a fuel supplying passage (29) that connects the fuel supplying source (6) to the fuel adding device (28), and a shut-off valve position detecting means for detecting that the emergency shut-off valve (31) is closed. If an upstream fuel pressure applied to the emergency shut-off valve (31) becomes higher than a downstream fuel pressure applied to the emergency shut-off valve (31), the emergency shut-off valve (31) is controlled so as to be prevented from being opened. If the exhaust air-fuel ratio does not shift to the rich side despite the issuance of an instruction to add fuel at this moment, it is possible to detect that fuel leakage has occurred downstream of the emergency shut-off valve (31).

10. 发明专利

DE60108345T2 未知
公开(公告)号：DE60108345T2
公开(公告)日：2005-12-22
申请号：DE60108345
申请日：2001-11-28
申请人： DENSO CORP , TOYOTA MOTOR CO LTD
发明人： KOBAYASHI MASAAKI , MATSUSHITA SOUICHI , OHKI HISASHI , HAYASHI KOTARO , ISHIYAMA SHINOBU , SHIBATA DAISUKE , MAGARIDA NAOFUMI , ODA TOMIHISA , HARADA YASUO , NEGAMI AKIHIKO , MATSUOKA HIROKI , OTSUBO YASUHIKO , AOYAMA TARO , TAHARA JUN , UMEHARA AKIRA
IPC分类号： F01N3/18 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/36 , F01N9/00 , F02B37/00 , F02M25/07 , F02D41/22
摘要： An exhaust gas purifying device of the invention comprises an exhaust gas purifying catalyst (20) disposed in an exhaust system, a fuel adding device (28) for adding fuel to the exhaust gas purifying catalyst (20) as a reducing agent, a fuel supplying source (6) for supplying the fuel adding device (28) with fuel, an emergency shut-off valve (31) disposed in a fuel supplying passage (29) that connects the fuel supplying source (6) to the fuel adding device (28), and a shut-off valve position detecting means for detecting that the emergency shut-off valve (31) is closed. If an upstream fuel pressure applied to the emergency shut-off valve (31) becomes higher than a downstream fuel pressure applied to the emergency shut-off valve (31), the emergency shut-off valve (31) is controlled so as to be prevented from being opened. If the exhaust air-fuel ratio does not shift to the rich side despite the issuance of an instruction to add fuel at this moment, it is possible to detect that fuel leakage has occurred downstream of the emergency shut-off valve (31).

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