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1. 发明授权

US06973785B2 Apparatus and method for controlling EGR in an engine 失效
标题翻译：用于控制发动机中EGR的装置和方法
公开(公告)号：US06973785B2
公开(公告)日：2005-12-13
申请号：US10607605
申请日：2003-06-27
申请人： Tsutomu Umehara , Masaaki Yamaguchi , Hiroki Kinuhata
发明人： Tsutomu Umehara , Masaaki Yamaguchi , Hiroki Kinuhata
IPC分类号： F02B37/00 , F02B3/06 , F02B29/04 , F02B37/22 , F02D21/08 , F02D23/00 , F02D41/00 , F02D41/10 , F02M25/07 , F02M31/04 , F02B33/44
CPC分类号： F02D41/005 , F02B3/06 , F02B29/0406 , F02B29/0493 , F02D41/0007 , F02D41/107 , F02D2041/1431 , F02M26/05 , F02M26/10 , F02M31/042 , Y02T10/47
摘要： An engine including a recirculation passage, which connects an exhaust passage to an intake passage, and an EGR valve arranged in the recirculation passage. An electronic control unit (ECU) obtains a target opening degree of the EGR valve in accordance with an operating state of the engine and controls the EGR valve so that the opening degree of the EGR valve becomes equal to the obtained target opening degree. When opening the EGR valve from a fully closed state, the ECU restricts the opening degree of the EGR valve to a restricted opening degree that is smaller than the target opening degree during a predetermined delay time before actuating the EGR valve to the target opening degree. This prevent exhaust gas from being excessively recirculated to the intake passage even if the difference between the exhaust pressure and the intake pressure is too large when starting EGR.
摘要翻译：包括将排气通道连接到进气通道的再循环通道和布置在再循环通道中的EGR阀的发动机。电子控制单元（ECU）根据发动机的运转状态求出EGR阀的目标开度，控制EGR阀使得EGR阀的开度变得等于获得的目标开度。当从完全关闭状态打开EGR阀时，ECU在将EGR阀启动到目标开度之前将预定延迟时间期间将EGR阀的开度限制在比目标开度小的限制开度。即使当EGR开始时排气压力和进气压力之间的差异太大，也能够防止排气过度再循环到进气通道。

2. 发明授权

US08875488B2 Internal combustion engine 有权
标题翻译：内燃机
公开(公告)号：US08875488B2
公开(公告)日：2014-11-04
申请号：US13312178
申请日：2011-12-06
申请人： Takehito Hamamatsu , Tsutomu Umehara , Hiroshi Kuzuyama
发明人： Takehito Hamamatsu , Tsutomu Umehara , Hiroshi Kuzuyama
IPC分类号： F02M25/06 , F02D41/00 , F02M25/07
CPC分类号： F02D41/0077 , F02D41/0052 , F02D41/0055 , F02D41/10 , F02D41/1441 , F02D41/1454 , F02D2200/602 , F02M26/05 , F02M26/06 , F02M26/24 , Y02T10/47
摘要： An internal combustion engine, in which intake air flows through an intake passage into a combustion chamber and exhaust gas resulting from the combustion in the combustion chamber flows through an exhaust passage, includes an exhaust gas purifier provided in the exhaust passage and having an oxidation catalyst, an LPL-EGR passage connecting between the intake passage and the exhaust passage at a position downstream of the exhaust gas purifier as seen in exhaust gas flow direction, a first estimating device for estimating exhaust gas composition at a position upstream of the exhaust gas purifier, a second estimating device for estimating exhaust gas composition at a position downstream of the exhaust gas purifier, a cylinder temperature adjusting device for adjusting temperature in the combustion chamber, and a controller for controlling the cylinder temperature adjusting device based on the difference in the exhaust gas composition between the first and second estimating devices.
摘要翻译：一种内燃机，其中进气通过进气通道进入燃烧室，并且由燃烧室中的燃烧产生的废气流经排气通道，包括设置在排气通道中并具有氧化催化剂的排气净化器，在排气净化器的排气流动方向观察时，在排气净化器的下游位置处，在进气通路和排气通路之间连接的LPL-EGR通路，第一估计装置，用于估计废气净化器，用于估计排气净化器下游位置的废气组成的第二估计装置，用于调节燃烧室中的温度的气缸温度调节装置，以及基于排气差异控制气缸温度调节装置的控制器第一和第二估计装置之间的气体成分。

3. 发明申请

US20120144806A1 INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机
公开(公告)号：US20120144806A1
公开(公告)日：2012-06-14
申请号：US13312178
申请日：2011-12-06
申请人： Takehito Hamamatsu , Tsutomu Umehara , Hiroshi Kuzuyama
发明人： Takehito Hamamatsu , Tsutomu Umehara , Hiroshi Kuzuyama
IPC分类号： F01N3/18 , F02M25/07
CPC分类号： F02D41/0077 , F02D41/0052 , F02D41/0055 , F02D41/10 , F02D41/1441 , F02D41/1454 , F02D2200/602 , F02M26/05 , F02M26/06 , F02M26/24 , Y02T10/47
摘要： An internal combustion engine, in which intake air flows through an intake passage into a combustion chamber and exhaust gas resulting from the combustion in the combustion chamber flows through an exhaust passage, includes an exhaust gas purifier provided in the exhaust passage and having an oxidation catalyst, an LPL-EGR passage connecting between the intake passage and the exhaust passage at a position downstream of the exhaust gas purifier as seen in exhaust gas flow direction, a first estimating device for estimating exhaust gas composition at a position upstream of the exhaust gas purifier, a second estimating device for estimating exhaust gas composition at a position downstream of the exhaust gas purifier, a cylinder temperature adjusting device for adjusting temperature in the combustion chamber, and a controller for controlling the cylinder temperature adjusting device based on the difference in the exhaust gas composition between the first and second estimating devices.
摘要翻译：一种内燃机，其中进气通过进气通道进入燃烧室，并且由燃烧室中的燃烧产生的废气流经排气通道，包括设置在排气通道中并具有氧化催化剂的排气净化器，在排气净化器的排气流动方向观察时，在排气净化器的下游位置处，在进气通路和排气通路之间连接的LPL-EGR通路，第一估计装置，用于估计废气净化器，用于估计排气净化器下游位置的废气组成的第二估计装置，用于调节燃烧室中的温度的气缸温度调节装置，以及基于排气差异控制气缸温度调节装置的控制器第一和第二估计装置之间的气体成分。

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