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21. 发明授权

US06962046B2 Exhaust gas cleaning system having particulate filter 有权
标题翻译：具有微粒过滤器的排气净化系统
公开(公告)号：US06962046B2
公开(公告)日：2005-11-08
申请号：US10461394
申请日：2003-06-16
申请人： Tsukasa Kuboshima , Shinichiro Okugawa , Makoto Saito , Shigeto Yahata
发明人： Tsukasa Kuboshima , Shinichiro Okugawa , Makoto Saito , Shigeto Yahata
IPC分类号： F02D45/00 , B01D46/42 , F01N3/02 , F01N3/023 , F01N3/035 , F01N3/20 , F01N9/00 , F01N11/00 , F02D41/02 , F02D41/14 , F01N3/00
CPC分类号： F02D41/1448 , F01N3/023 , F01N3/035 , F01N9/002 , F01N11/002 , F01N2430/08 , F01N2430/085 , F02D41/029 , F02D41/1446 , F02D41/187 , F02D2200/0812 , Y02T10/47 , Y10S55/30
摘要： An electronic control unit (ECU) of an exhaust gas cleaning system for an internal combustion engine having a diesel particulate filter (DPF) determines whether collection quantity of exhaust particulate matters collected by the DPF is greater than a regeneration start value or not. The collection quantity is calculated from a pressure difference at the DPF and a flow rate of exhaust gas. If the collection quantity is determined to be greater than the regeneration start value, the ECU increases the temperature of the DPF to regenerate the DPF. The regeneration start value is set smaller as the detection accuracy of the collection quantity decreases. The regeneration start value is set smaller as the exhaust gas flow rate decreases and a rate of change in an accelerator position increases.
摘要翻译：用于具有柴油机微粒过滤器（DPF）的内燃机排气净化系统的电子控制单元（ECU）确定由DPF收集的废气颗粒物质的收集量是否大于再生开始值。收集量由DPF的压力差和排气的流量计算。如果收集量被确定为大于再生开始值，则ECU增加DPF的温度以再生DPF。随着收集量的检测精度降低，再生开始值被设定得更小。随着废气流量的降低，加速器位置的变化率的增加，再生开始值被设定得较小。

22. 发明授权

US06826903B2 Exhaust gas recirculation system having cooler 失效
标题翻译：排气再循环系统有冷却器
公开(公告)号：US06826903B2
公开(公告)日：2004-12-07
申请号：US10440140
申请日：2003-05-19
申请人： Shigeto Yahata , Makoto Saito , Masumi Kinugawa , Kiyonori Sekiguchi , Tsukasa Kuboshima
发明人： Shigeto Yahata , Makoto Saito , Masumi Kinugawa , Kiyonori Sekiguchi , Tsukasa Kuboshima
IPC分类号： F01N300
CPC分类号： F02D41/021 , F02M26/05 , F02M26/32 , F02M26/35 , F02M26/47 , F02M26/49 , F02M26/50
摘要： An exhaust gas recirculation (EGR) system of an internal combustion engine has an EGR cooler in an EGR passage connecting an exhaust manifold with an intake manifold. The EGR cooler cools EGR gas recirculated through the EGR passage. Cooling performance detecting means included in an electronic control unit (ECU) determines that cooling performance of the EGR cooler is degraded when intake pressure measured by an intake pressure sensor is lower than a normal intake pressure by at least a predetermined value. When the degradation of the cooling performance is detected, cooling performance regeneration controlling means included in the ECU increases the temperature inside the EGR cooler by heating the exhaust gas to eliminate soot or unburned hydrocarbon by oxidization. Thus, the cooling performance of the EGR cooler is regenerated.
摘要翻译：内燃机的废气再循环（EGR）系统在排气歧管与进气歧管连接的EGR通路中具有EGR冷却器。 EGR冷却器冷却通过EGR通道再循环的EGR气体。包括在电子控制单元（ECU）中的冷却性能检测装置确定当由进气压力传感器测量的进气压力低于正常进气压力至少预定值时，EGR冷却器的冷却性能降低。当检测到冷却性能的劣化时，包括在ECU中的冷却性能再生控制装置通过加热废气以通过氧化来消除烟灰或未燃烧的烃来增加EGR冷却器内部的温度。因此，再生EGR冷却器的冷却性能。

23. 发明授权

US06758039B2 Exhaust gas cleaning system having particulate filter 有权
标题翻译：具有微粒过滤器的排气净化系统
公开(公告)号：US06758039B2
公开(公告)日：2004-07-06
申请号：US10460207
申请日：2003-06-13
申请人： Tsukasa Kuboshima , Shinichiro Okugawa , Makoto Saito , Shigeto Yahata , Masumi Kinugawa
发明人： Tsukasa Kuboshima , Shinichiro Okugawa , Makoto Saito , Shigeto Yahata , Masumi Kinugawa
IPC分类号： F01N302
CPC分类号： F02D41/1445 , F01N3/023 , F01N3/035 , F01N9/002 , F01N11/002 , F01N2430/085 , F01N2900/0421 , F01N2900/0422 , F02D41/029 , F02D41/1448 , F02D41/187 , F02D2200/0404 , F02D2200/0812 , Y02T10/47
摘要： In an exhaust gas cleaning system of an internal combustion engine having a diesel particulate filter (DPF), measuring accuracy of a collection quantity of particulate matters collected by the DPF is estimated based on an accelerator position change rate and an exhaust gas flow rate. When the measuring accuracy is high, the collection quantity is calculated based on a pressure difference and the exhaust gas flow rate at the DPF. If the measuring accuracy is low, an increment value of the collection quantity is calculated based on a quantity of the particulate matters discharged from an engine main body. Then, the collection quantity is calculated by adding the collection quantity increment value to the previous collection quantity calculated based on the pressure difference and the exhaust gas flow rate while the measuring accuracy is high.
摘要翻译：在具有柴油机微粒过滤器（DPF）的内燃机的废气净化系统中，基于加速器位置变化率和废气流量来推定由DPF收集的颗粒物质的收集量的测量精度。当测量精度高时，基于DPF的压力差和排气流量来计算收集量。如果测量精度低，则基于从发动机主体排出的颗粒物的量来计算收集量的增量值。然后，通过将采集量增量值与在测量精度高时基于压差和排气流量计算的先前收集量相加来计算收集量。

24. 发明授权

US07614219B2 Exhaust gas purifying apparatus for internal combustion engine 有权
标题翻译：内燃机用废气净化装置
公开(公告)号：US07614219B2
公开(公告)日：2009-11-10
申请号：US11514146
申请日：2006-09-01
申请人： Yasuhiro Kariya , Shigeto Yahata , Tsukasa Kuboshima , Masumi Kinugawa , Kanehito Nakamura
发明人： Yasuhiro Kariya , Shigeto Yahata , Tsukasa Kuboshima , Masumi Kinugawa , Kanehito Nakamura
IPC分类号： F01N3/025
CPC分类号： F01N9/002 , F01N3/023 , F01N11/002 , F01N11/005 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine includes a collector, which collects exhaust particles in exhaust gas. The apparatus computes a pressure-difference-based measured value of a collected amount of the particles based on a pressure difference, and computes a pressure-difference-based estimated value by correcting the measured value. The apparatus computes an operational-state-based estimated value of the collected amount. The apparatus regenerates the collector by burning the exhaust particles when one of the pressure-difference-based estimated value and the operational-state-based estimated value reaches a predetermined value. The apparatus computes a current pressure-difference-based estimated value by correcting a current pressure-difference-based measured value based on information related to an immediately preceding operational-state-based computing period such that the current pressure-difference-based estimated value ranges from the current measured value to a previous pressure-difference-based estimated value.
摘要翻译：用于内燃机的废气净化装置包括收集器，其收集废气中的废气颗粒。该装置基于压力差计算收集量的颗粒的基于压差的测量值，并通过校正测量值来计算基于压差的估计值。该装置计算采集量的基于操作状态的估计值。当基于压差的估计值和基于操作状态的估计值之一达到预定值时，设备通过燃烧排气颗粒来再生收集器。该装置通过基于与前一个基于操作状态的计算周期相关的信息来校正当前基于压力差的测量值来计算当前基于压力差的估计值，使得当前基于压力差的估计值范围从当前测量值到先前基于压差的估计值。

25. 发明授权

US07322186B2 Exhaust gas purifying system for internal combustion engine 失效
标题翻译：内燃机排气净化系统
公开(公告)号：US07322186B2
公开(公告)日：2008-01-29
申请号：US11220596
申请日：2005-09-08
申请人： Kazuharu Tochikawa , Makoto Saito , Shigeto Yahata , Tsukasa Kuboshima , Kanehito Nakamura
发明人： Kazuharu Tochikawa , Makoto Saito , Shigeto Yahata , Tsukasa Kuboshima , Kanehito Nakamura
IPC分类号： F01N3/00 , F01N3/02
CPC分类号： F02D41/029 , F01N3/023 , F01N3/035 , F01N9/002 , F01N11/002 , F02D41/1441 , F02D41/1448 , Y02T10/47
摘要： In an exhaust gas purifying apparatus for a diesel engine having a diesel particulate filter provided in an exhaust pipe, a pressure loss at the filter is detected. An accumulated amount of diesel particulates in the filter is calculated based on the pressure loss and a map for a relationship between the pressure loss and the accumulated amount. A compulsory re-generating operation is carried out when the calculated accumulated amount reaches at a predetermined threshold value, which is decreased to a smaller value depending on a combustion amount of the diesel particulates which are combusted and removed from the filter as a natural re-generating operation.
摘要翻译：在具有设置在排气管中的柴油机微粒过滤器的柴油机废气净化装置中，检测过滤器处的压力损失。基于压力损失和压力损失与累积量之间的关系的映射图来计算过滤器中的柴油微粒的累积量。当计算出的累计量达到预定阈值时，根据从过滤器燃烧和除去的柴油微粒的燃烧量减少到较小值，进行强制再生作业，生成操作。

26. 发明授权

US07310941B2 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：US07310941B2
公开(公告)日：2007-12-25
申请号：US11334463
申请日：2006-01-19
申请人： Tsukasa Kuboshima , Shigeto Yahata
发明人： Tsukasa Kuboshima , Shigeto Yahata
IPC分类号： F01N3/00
CPC分类号： F01N11/002 , F01N9/002 , F01N2900/0422 , F02D2200/0812 , Y02T10/47
摘要： An exhaust gas purification system has a first accumulation quantity estimation device that estimates an accumulation quantity of exhaust particulate matters collected by a diesel particulate filter (DPF) based on a flowing state of exhaust gas and a second accumulation quantity estimation device that estimates the accumulation quantity based on an operating state of an engine. The first estimation device is employed only when a flow rate of the exhaust gas is equal to or greater than a predetermined value and the engine is in a steady operating state. Otherwise, the second estimation device is employed. The exhaust gas flow rate is increased if the estimation by the second estimation device continues for a long time. Thus, an opportunity to perform the accumulation quantity estimation with the first estimation device is increased, and accumulation accuracy is improved.
摘要翻译：排气净化系统具有：第一累积量估计装置，其基于排气的流动状态来估计由柴油机微粒过滤器（DPF）收集的排气微粒物质的累积量;以及第二积累量估计装置，其估计累积量基于发动机的运行状态。仅当排气的流量等于或大于预定值并且发动机处于稳定运行状态时才使用第一估计装置。否则，采用第二估计装置。如果第二估计装置的估计持续很长时间，则废气流量增加。因此，增加了利用第一估计装置执行累积量估计的机会，并且提高了累积精度。

27. 发明申请

US20070012034A1 Exhaust emission control system for internal combustion engine 有权
标题翻译：内燃机废气排放控制系统
公开(公告)号：US20070012034A1
公开(公告)日：2007-01-18
申请号：US11483609
申请日：2006-07-11
申请人： Shigeto Yahata , Kazuharu Tochikawa , Tsukasa Kuboshima
发明人： Shigeto Yahata , Kazuharu Tochikawa , Tsukasa Kuboshima
IPC分类号： F01N3/00 , F01N3/02
CPC分类号： F01N11/002 , F01N3/023 , F01N9/002 , F01N9/005 , F01N9/007 , F02B29/0406 , F02B37/00 , F02D41/0055 , F02D41/0245 , F02D41/029 , F02D41/405 , F02D2200/0812 , F02M26/05 , F02M26/25 , Y02T10/47
摘要： In an exhaust emission control system for a vehicular internal combustion engine, a particulate filter collects particulate matters in an exhaust gas of the internal combustion engine. A filter regenerator regenerates the particulate filter by burning the particulate matters accumulated in the particulate filter. A filter front clogging detector determines whether a front end portion of the particulate filter is clogged by the particulate matters. A filter regeneration controller that controls the filter regenerator to perform a front regeneration to remove the particulate matters accumulated in the front end portion of the particulate filter when the filter front clogging detector determines that the front end portion of the particulate filter is clogged.
摘要翻译：在车辆内燃机的废气排放控制系统中，微粒过滤器收集内燃机的废气中的颗粒物质。过滤再生器通过燃烧颗粒过滤器中积聚的颗粒物质来再生颗粒过滤器。过滤器前堵塞检测器确定颗粒过滤器的前端部分是否被颗粒物质堵塞。过滤器再生控制器，当过滤器前堵塞检测器确定微粒过滤器的前端部分堵塞时，控制过滤器再生器执行前部再生以除去积聚在微粒过滤器的前端部分中的颗粒物质。

28. 发明授权

US07162867B2 Exhaust gas purifying device for internal combustion engine 有权
标题翻译：内燃机废气净化装置
公开(公告)号：US07162867B2
公开(公告)日：2007-01-16
申请号：US11228292
申请日：2005-09-19
申请人： Makoto Saito , Shigeto Yahata , Kazuharu Tochikawa , Kanehito Nakamura , Tsukasa Kuboshima
发明人： Makoto Saito , Shigeto Yahata , Kazuharu Tochikawa , Kanehito Nakamura , Tsukasa Kuboshima
IPC分类号： F01N3/00
CPC分类号： F01N3/023 , F01N9/002 , F01N2430/00 , Y02T10/47
摘要： An exhaust gas purifying device for an engine includes a particulate filter midway in an exhaust passage for collecting particulate matters. A control means calculates an accumulating amount of particulate matters on the particulate filter. An accumulating amount calculating means calculates the accumulating amount in accordance with an accumulating characteristic and differential pressure of the particulate filter detected using a differential pressure detecting means. When the accumulating amount becomes a predetermined regeneration demand amount, the control means performs a forcible regeneration, in which particulate matters on the particulate filter are burned and removed to regenerate the particulate filter.
摘要翻译：用于发动机的排气净化装置包括在用于收集颗粒物质的排气通道中途的微粒过滤器。控制装置计算微粒过滤器上的颗粒物的累积量。累积量计算装置根据使用差压检测装置检测的微粒过滤器的累积特性和压差来计算累积量。当累积量成为预定的再生需求量时，控制装置进行强制再生，其中颗粒过滤器上的颗粒物被燃烧并除去以再生微粒过滤器。

29. 发明申请

US20060179826A1 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：US20060179826A1
公开(公告)日：2006-08-17
申请号：US11334463
申请日：2006-01-19
申请人： Tsukasa Kuboshima , Shigeto Yahata
发明人： Tsukasa Kuboshima , Shigeto Yahata
IPC分类号： F01N3/00
CPC分类号： F01N11/002 , F01N9/002 , F01N2900/0422 , F02D2200/0812 , Y02T10/47
摘要： An exhaust gas purification system has a first accumulation quantity estimation device that estimates an accumulation quantity of exhaust particulate matters collected by a diesel particulate filter (DPF) based on a flowing state of exhaust gas and a second accumulation quantity estimation device that estimates the accumulation quantity based on an operating state of an engine. The first estimation device is employed only when a flow rate of the exhaust gas is equal to or greater than a predetermined value and the engine is in a steady operating state. Otherwise, the second estimation device is employed. The exhaust gas flow rate is increased if the estimation by the second estimation device continues for a long time. Thus, an opportunity to perform the accumulation quantity estimation with the first estimation device is increased, and accumulation accuracy is improved.
摘要翻译：排气净化系统具有：第一累积量估计装置，其基于排气的流动状态来估计由柴油机微粒过滤器（DPF）收集的排气微粒物质的累积量;以及第二积累量估计装置，其估计累积量基于发动机的运行状态。仅当排气的流量等于或大于预定值并且发动机处于稳定运行状态时才使用第一估计装置。否则，采用第二估计装置。如果第二估计装置的估计持续很长时间，则废气流量增加。因此，增加了利用第一估计装置执行累积量估计的机会，并且提高了累积精度。

30. 发明授权

US06951100B2 Exhaust gas cleaning system of internal combustion engine 有权
标题翻译：内燃机排气净化系统
公开(公告)号：US06951100B2
公开(公告)日：2005-10-04
申请号：US10722569
申请日：2003-11-28
申请人： Tsukasa Kuboshima , Masumi Kinugawa , Kiyonori Sekiguchi , Makoto Saito , Shigeto Yahata
发明人： Tsukasa Kuboshima , Masumi Kinugawa , Kiyonori Sekiguchi , Makoto Saito , Shigeto Yahata
IPC分类号： F01N9/00 , F02D21/08 , F02D41/00 , F02D41/02 , F02M25/07 , F01N3/02
CPC分类号： F02D41/029 , F01N9/002 , F01N2330/06 , F01N2430/06 , F01N2430/08 , F01N2430/085 , F01N2510/065 , F02D41/0055 , F02D41/1446 , F02D41/1448 , F02D41/187 , F02D2200/0812 , F02D2200/602 , F02M26/13
摘要： An electronic control unit (an ECU) detects an operating condition of an engine and quantity of particulate matters accumulated in a diesel particulate filter (a DPF) having an oxidation catalyst from a pressure difference across the DPF. The ECU operates temperature increasing means for regenerating the DPF based on the above detection results. During a low speed and light load operation, the ECU does not perform temperature increasing operation similar to an operation performed during a middle load operation. Instead, the ECU performs operation such as reduction of recirculated exhaust gas quantity in order to inhibit an increase in the quantity of the accumulated particulate matters. When the operating condition is changed afterward, the temperature increasing means is operated, so safe regeneration of the DPF is achieved.
摘要翻译：电子控制单元（ECU）从DPF的压力差检测发动机的运转状态和积聚在具有氧化催化剂的柴油机微粒过滤器（DPF）中的颗粒物质的量。 ECU根据上述检测结果，操作升温装置，再生DPF。在低速轻负载操作期间，ECU不执行类似于在中间负载操作期间执行的操作的升温操作。替代地，ECU执行诸如减少再循环废气量的操作，以便抑制积聚的颗粒物质的量的增加。当操作条件变化之后，升温装置被操作，从而实现了DPF的安全再生。

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