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101. 发明专利

JP4862964B2 A control system for an internal combustion engine 有权
公开(公告)号：JP4862964B2
公开(公告)日：2012-01-25
申请号：JP2010542073
申请日：2009-11-26
申请人：トヨタ自動車株式会社
发明人：敏宏加藤
IPC分类号： F02D45/00 , F02D21/08 , F02D41/12 , F02M25/07
CPC分类号： F02D41/126 , F02D31/007 , F02D41/0055 , F02D41/123 , F02D2200/0406 , F02M26/49 , Y10T477/79

102. 发明专利

JP4844454B2 egr device for an engine 有权
公开(公告)号：JP4844454B2
公开(公告)日：2011-12-28
申请号：JP2007105575
申请日：2007-04-13
申请人：いすゞ自動車株式会社
发明人：惠夫関山
IPC分类号： F02M25/07
CPC分类号： F02M26/47 , F02M26/22 , F02M26/49
摘要： PROBLEM TO BE SOLVED: To determine whether a trouble of an EGR gas cooling system is caused by dropping of cooling performance of an EGR cooler or by dropping of capability of an EGR cooling water pump. SOLUTION: An EGR device for an engine provided with the EGR gas cooling system 14 including an EGR cooling water channel 11, the EGR cooling water pump 12, and the EGR cooler 13, is provided with a gas temperature detection means 17 detecting gas temperature at a gas outlet of the EGR cooler 13, an engine rotation speed detection means 19 detecting engine rotation speed, an abnormality detection means 18 judging abnormality of the EGR gas cooling system 14 based on gas temperature detected by the gas temperature detection means 17, and a cause specifying means 18 specifying whether abnormality of the EGR gas cooling system 14 detected by the abnormality detection means 18 is caused by drop of capacity of the EGR cooling water pump 12 or is caused by a cooling capacity of the EGR cooler 13 based on the engine rotation speed when the abnormality detection means 18 judges abnormality. COPYRIGHT: (C)2009,JPO&INPIT

103. 发明专利

JP4713437B2 Exhaust gas recirculation system for an internal combustion engine 有权
公开(公告)号：JP4713437B2
公开(公告)日：2011-06-29
申请号：JP2006283240
申请日：2006-10-18
申请人：日立オートモティブシステムズ株式会社
发明人：義寛助川 , 英一郎大畠 , 士朗山岡 , 浩昭星加 , 香織樫尾
IPC分类号： F02M25/07
CPC分类号： F02D41/0055 , F02D41/0072 , F02D41/187 , F02D41/22 , F02D2041/0067 , F02D2041/0075 , F02D2200/0414 , F02M26/25 , F02M26/43 , F02M26/44 , F02M26/47 , F02M26/48 , F02M26/49 , F02M2026/003 , Y02T10/47
摘要： A conventional technique performs valve close control of an EGR valve after an EGR-gas back flow is detected. Therefore, the conventional technique has a subject that, if an EGR-gas flow direction changes from forward flow to back flow, a back flow condition will last not only for a response delay time of a detector but also for the judgment time by calculation processing and the actuation time of the EGR control valve. There is provided a control apparatus of an EGR control valve 11, comprising: an EGR control valve 11 which is provided in an exhaust gas recirculation passage to circulate exhaust gas of an combustion engine 19 from an exhaust gas passage 92 to an intake air passage; measurement means for measuring a flow rate of EGR gas flowing in the exhaust gas recirculation passage; and control means for receiving an input from the measurement means and closing the EGR control valve 11 if the EGR-gas flow rate is smaller than a predetermined threshold value when the EGR gas is flowing from the exhaust side to the intake side of the internal combustion engine 19.

104. 发明专利

JP2011112028A Control apparatus for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2011112028A
公开(公告)日：2011-06-09
申请号：JP2009271564
申请日：2009-11-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HOKUTO HIROYUKI , SHINAGAWA TOMOHIRO
IPC分类号： F02D41/22 , F02D41/34 , F02D43/00 , F02D45/00 , F02M25/07
CPC分类号： F02D41/221 , F02D29/02 , F02D41/0055 , F02D41/3094 , F02M25/06 , F02M26/23 , F02M26/48 , F02M26/49 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To determine whether or not failure exists in an EGR device, an injection valve for supplying fuel into an intake passage, and an injection valve for supplying the fuel into cylinders, respectively, and when failure exists, take adequate measures according thereto. SOLUTION: A control apparatus for an internal combustion engine includes an in-passage injection valve for injecting the fuel into the intake passage; and an in-cylinder injection valve for injecting the fuel into the cylinders. The control apparatus stops the supply of EGR gas when failure exists in the air-fuel ratio of exhaust gas. When the air-fuel ratio of the exhaust gas thereafter is normal, the control apparatus determines that failure exists in the EGR device, and inhibits the supply of the EGR gas. When failure exists in the air-fuel ratio of the exhaust gas, the control apparatus performs feedback control while supplying the fuel only from either of the injection valves. When the learning value at this point exceeds a predetermined value, the control apparatus determines that failure exists in the injection valve performing the fuel supply. When failure exists in the in-passage injection valve, the control apparatus stops the fuel supply from the injection valve, and changes the operating point to a high-rotation and low-load side. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了确定EGR装置中是否存在故障，用于向进气通道供应燃料的喷射阀和用于将燃料分别供应到气缸中的喷射阀以及当存在故障时适当的措施。解决方案：一种用于内燃机的控制设备包括用于将燃料喷射到进气通道中的通道内喷射阀; 以及用于将燃料喷射到气缸中的缸内喷射阀。当废气的空燃比存在故障时，控制装置停止EGR气体的供给。此后，当排气的空燃比正常时，控制装置判定在EGR装置中存在故障，并且抑制EGR气体的供给。当排气的空燃比存在故障时，控制装置在仅从任一个喷射阀供给燃料的同时进行反馈控制。当此时的学习值超过预定值时，控制装置确定执行燃料供应的喷射阀中存在故障。当通道内注入阀存在故障时，控制装置停止从喷射阀的燃料供给，并且将工作点改变为高旋转和低负载侧。版权所有（C）2011，JPO＆INPIT

105. 发明专利

JP4668312B2 Failure diagnosis device for an exhaust gas pressure sensor 有权
公开(公告)号：JP4668312B2
公开(公告)日：2011-04-13
申请号：JP2008251977
申请日：2008-09-30
申请人：本田技研工業株式会社
发明人：良樹黒川
IPC分类号： F02D45/00 , F02D43/00
CPC分类号： F02D41/222 , F01N2550/00 , F01N2560/08 , F02D41/0055 , F02D41/1448 , F02D2200/703 , F02M26/05 , F02M26/47 , F02M26/49 , Y02T10/40

106. 发明专利

JP2010539390A A method of diagnosing a bypass flap of the heat exchanger of the exhaust gas recirculation system 审中-公开
公开(公告)号：JP2010539390A
公开(公告)日：2010-12-16
申请号：JP2010525412
申请日：2008-09-19
申请人：ルノー・エス・アー・エス
发明人：ジュリアンアラール， , クレマンプティ， , ブラ，ロナンル
IPC分类号： F02M25/07
CPC分类号： F02M26/47 , F02B29/0406 , F02D41/0055 , F02D41/221 , F02D2041/0067 , F02M26/05 , F02M26/25 , F02M26/33 , F02M26/49
摘要：本発明は、エンジン内のＥＧＲ回路（２０）の故障を診断する方法に関するものであり、前記ＥＧＲ回路（２０）は、ＥＧＲ熱交換器（２２）と、ＥＧＲバルブ（２１）と、ＥＧＲ熱交換器のバイパスダクト（２４）と、ＥＧＲ熱交換器（２２）及びバイパス回路（２４）の上流に配置されて、排気ガスのうち、前記ダクトを流れて通過する部分を調整するいわゆるバイパスフラップ（２３ａ）とを備え、ＥＧＲ回路（２０）は、フラップ（２３ａ）が閉じたいわゆる冷却モードと、フラップ（２３ａ）が開いたいわゆるバイパスモードで作動させることができる。本方法は、前記ＥＧＲ回路（２０）がバイパスモードであるときの前記ＥＧＲ熱交換器（２２）の出口における前記排気ガスの温度（ＴｓＥＧＲ
ｅｓｔ＿ｂｙｐ）を推定する工程を含む。

107. 发明专利

JP2010539388A The diagnostic method of the heat exchanger bypass flap of the exhaust gas recirculation circuit 有权
公开(公告)号：JP2010539388A
公开(公告)日：2010-12-16
申请号：JP2010525391
申请日：2008-07-25
申请人：ルノー・エス・アー・エス
发明人：ジュリアンアラール， , クレマンプティ， , ロナンル−ブラ，
IPC分类号： F02M25/07
CPC分类号： F02M26/47 , F02D41/0055 , F02D2041/0067 , F02M26/25 , F02M26/49
摘要：本発明は、エンジンのＥＧＲ回路（３）がＥＧＲ熱交換器（３１）と、ＥＧＲ弁（３３）と、ＥＧＲ熱交換器のバイパス通路（３５）と、バイパス通路を通過する排気ガスの割合を制御するために、ＥＧＲ熱交換器（３１）およびバイパス通路（３５）の上流に配置されたいわゆるバイパスフラップ（３２）とを備え、ＥＧＲ回路（３）はフラップ（３２）が閉じているいわゆる冷却モードとフラップ（３２）が開放しているいわゆるバイパスモードに従って動作開始可能である、ＥＧＲ回路の故障を診断する方法であって、診断段階の間、フラップ（３２）の２つの動作開始（Ａ１，Ａ２）を行うことと、診断段階の間、ＥＧＲ熱交換器（３１）の出口で、ＥＧＲガスの温度変化（ＴｓＥＧＲ）の平均を測定する方法に関する。

108. 发明专利

JP4538363B2 egr device for an internal combustion engine 有权
公开(公告)号：JP4538363B2
公开(公告)日：2010-09-08
申请号：JP2005116702
申请日：2005-04-14
申请人：本田技研工業株式会社
发明人：光小田島
IPC分类号： F02M25/07
CPC分类号： F02M26/47 , F02M26/25 , F02M26/49
摘要： PROBLEM TO BE SOLVED: To provide an EGR device for an internal combustion engine capable of suitably performing abnormal determination of a bypass valve without addition of an exclusive senser for abnormality determination. SOLUTION: This device is equipped with an EGR passage 9 for circulating EGR gas, an EGR valve 10 provided in the EGR passage 9, an EGR cooler 11 provided in the EGR passage 9, a bypass passage 12 detouring the EGR cooler 11, the bypass valve 13 for adjusting a flow ratio of the EGR gas flowing in the EGR passage 9 and the bypass passage 12, a temperature detection means 32 for detecting a temperature TA of a suction system 4, and a bypass valve abnormality determination means 2 for determining abnormality of the bypass valve 13 while having temperatures T2, T1 and ΔTA detected by the temperature detection means as parameters when the bypass valve 13 is driven to be opened or closed by a bypass valve driving means 13a in the state that the EGR valve 10 is opened to the predetermined opening. COPYRIGHT: (C)2007,JPO&INPIT

109. 发明专利

JP4531597B2 A control system for an internal combustion engine 有权
公开(公告)号：JP4531597B2
公开(公告)日：2010-08-25
申请号：JP2005072163
申请日：2005-03-15
申请人：本田技研工業株式会社
发明人：武志原 , 健太郎大沼 , 将岐津田 , 秀隆牧
IPC分类号： F02M25/07 , F02D41/14
CPC分类号： F02D41/0055 , F02D2011/108 , F02D2041/1432 , F02D2200/0404 , F02D2200/0406 , F02M25/089 , F02M26/15 , F02M26/48 , F02M26/49 , F02M26/53 , Y02T10/47
摘要： A control system for an internal combustion engine is disclosed. The engine has an exhaust gas recirculation device which includes an exhaust gas recirculation passage for recirculating exhaust gases from the engine to an intake system of the engine, and an exhaust gas recirculation control valve provided in the exhaust gas recirculation passage, for controlling a flow rate of the exhaust gases. An air-fuel ratio control amount is calculated based on an output of the air-fuel ratio sensor provided in the exhaust system of the engine. The air-fuel ratio of the air-fuel mixture supplied to the engine is controlled with the air-fuel ratio control amount. A failure of the exhaust gas recirculation device is determined based on a changing component of the air-fuel ratio control amount when changing an opening of the exhaust gas recirculation control valve in a predetermined cycle.

110. 发明专利

JP2010127243A Failure diagnosing device for internal combustion engine 有权
标题翻译：内燃机故障诊断装置
公开(公告)号：JP2010127243A
公开(公告)日：2010-06-10
申请号：JP2008305006
申请日：2008-11-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MATSUMOTO TAKASHI
IPC分类号： F02D45/00 , F02D9/04 , F02D21/08 , F02D43/00 , F02M25/07
CPC分类号： F02D41/221 , F02D41/0055 , F02D41/1448 , F02D41/18 , F02M26/49 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide a technology capable of diagnosing an exhaust throttle valve opening failure and a low-pressure EGR valve closing failure at the same time separately from each other in a failure diagnosing device for an internal combustion engine.
SOLUTION: In deceleration of an internal combustion engine, an exhaust throttle valve is closed as much as possible and while a low-pressure EGR valve is opened full (S102). In the case wherein a change amount of the quantity of fresh air detected by an air flow meter is smaller than a predetermined quantity (S103-YES) and the exhaust pressure detected by an exhaust pressure sensor is lower than a predetermined pressure (S104-YES), an opening failure of the exhaust throttle valve is diagnosed (S105). In the case wherein a change amount of the quantity of fresh air detected by the air flow meter is smaller than the predetermined quantity (S103-YES) and the exhaust pressure detected by the exhaust pressure sensor is higher than the predetermined pressure (S104-NO), a closing failure of the low-pressure EGR valve is diagnosed (S106).
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在内燃机的故障诊断装置中同时分开地诊断排气节气门开度故障和低压EGR阀关闭故障的技术。解决方案：在内燃机的减速中，尽可能地关闭排气节流阀，同时低压EGR阀打满（S102）。在由空气流量计检测到的新鲜空气量的变化量小于规定量的情况下（S103〜是），排气压力传感器检测出的排气压力低于规定压力（S104〜是），诊断出排气节流阀的开闭故障（S105）。在由空气流量计检测到的新鲜空气量的变化量小于规定量的情况下（S103〜是），排气压力传感器检测出的排气压力高于规定压力（S104-NO ），诊断出低压EGR阀的关闭故障（S106）。版权所有（C）2010，JPO＆INPIT

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