公开(公告)号：US08307699B2

公开(公告)日：2012-11-13

申请号：US12922146

申请日：2008-05-21

申请人： Hiroshi Sawada ,  Daisuke Shibata

发明人： Hiroshi Sawada ,  Daisuke Shibata

IPC分类号： G01M15/10

CPC分类号： F02D41/222 ,  F01N3/2066 ,  F01N2550/00 ,  F01N2560/026 ,  F02D41/0275 ,  F02D41/1441 ,  F02D41/146 ,  F02D41/1461 ,  F02D41/1463 ,  Y02T10/40

摘要： An exhaust passage (15) of an internal-combustion engine (10) includes a selective reduction NOx catalyst (34) and an after-catalyst NOx sensor (50) for detecting a NOx concentration Cr at the downstream thereof. Reducing agent is selectively added from an addition valve (40) to the NOx catalyst. A NOx concentration Ce at the upstream side of the NOx catalyst is detected or estimated. NOx concentrations Cr and Ce before and after the NOx catalyst, which were detected or estimated during the stoppage of an addition of the reducing agent, are compared to each other to thereby determine an abnormality of the after-catalyst NOx sensor (50). An abnormality diagnosis is executed while the addition of reducing agent is being stopped to remove an influence by the NOx catalyst.

摘要翻译： 内燃机（10）的排气通路（15）包括用于检测下游的NOx浓度Cr的选择还原NOx催化剂（34）和催化剂后NOx传感器（50）。 从添加阀（40）向NOx催化剂选择性地添加还原剂。 检测或估计NOx催化剂上游侧的NOx浓度Ce。 将在还原剂添加停止期间检测或估计的NOx催化剂之前和之后的NOx浓度Cr和Ce彼此进行比较，从而确定催化剂后NOx传感器（50）的异常。 在停止添加还原剂以除去NOx催化剂的影响的同时执行异常诊断。

公开(公告)号：US08302378B2

公开(公告)日：2012-11-06

申请号：US12521710

申请日：2008-06-04

申请人： Yuji Miyoshi ,  Daisuke Shibata

发明人： Yuji Miyoshi ,  Daisuke Shibata

IPC分类号： F01N11/00

CPC分类号： F01N3/2033 ,  F01N3/103 ,  F01N3/106 ,  F01N11/002 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2560/14 ,  F02D41/0235 ,  F02D41/1441 ,  F02D41/1446 ,  Y02T10/26 ,  Y02T10/47

摘要： A temperature increasing degree of the catalytic outflow exhaust temperature at the time the exhaust air-fuel ratio is changed to the rich side is found in respect to each of a plurality of the catalytic inflow exhaust temperatures. A grade (S) of the temperature increasing degree is found based upon the inflow exhaust temperature and the temperature increasing degree to determine degradation of the catalyst based upon at least one of a maximum value (Smax) of the grade and the inflow exhaust temperature (Tinmax) corresponding to the maximum value. An accurate catalyst degradation diagnosis can be carried out since not only the temperature increasing degree but also the inflow exhaust temperature are taken into account.

摘要翻译： 关于多个催化剂流入排气温度中的每一个，发现排气空燃比变为浓侧时的催化流出排气温度的升高程度。 基于流入排气温度和升温程度来确定升温度的等级（S），以根据等级的最大值（Smax）和流入排气温度（Smax）中的至少一个来确定催化剂的降解 Tinmax）对应于最大值。 可以进行精确的催化剂劣化诊断，因为不仅考虑了升温程度，还考虑了流入排气温度。

公开(公告)号：US20110314792A1

公开(公告)日：2011-12-29

申请号：US12677277

申请日：2009-02-24

申请人： Daisuke Shibata ,  Koichi Kitaura ,  Hiroshi Sawada ,  Tatsuya Tsuji

发明人： Daisuke Shibata ,  Koichi Kitaura ,  Hiroshi Sawada ,  Tatsuya Tsuji

IPC分类号： F01N11/00

CPC分类号： F01N3/025 ,  F01N9/002 ,  F01N11/002 ,  F01N2550/04 ,  F01N2900/0601 ,  F01N2900/1606 ,  Y02T10/47

摘要： The invention intends to provide a technology which makes it possible to diagnose with higher accuracy whether or not abnormality occurs in a filter regeneration system causing excessive execution frequency of a regeneration process. The filter regeneration system initiates execution of the regeneration process, incase an estimated particulate matter (PM) accumulation amount at the filter reaches a pre-determined regeneration requiring accumulation amount; or in case the pressure upstream of the filter or the differential pressure across the filter reaches a pre-determined regeneration requiring value, the value being larger than the pressure or the differential pressure corresponding to the regeneration requiring accumulation amount. Then, the diagnosis is carried out based on a ratio of an estimated PM accumulation amount at the initiation of the execution of the regeneration process to the regeneration requiring accumulation amount.

摘要翻译： 本发明旨在提供一种能够以更高精度诊断导致再生处理的过度执行频率的过滤器再生系统中发生异常的技术。 过滤器再生系统启动再生处理的执行，使得在过滤器处的估计的颗粒物质（PM）累积量达到预定的再生需要累积量; 或者在过滤器上游的压力或过滤器上的压差达到预定的再生需求值的情况下，该值大于对应于再生需要累积量的压力或压差。 然后，基于再生处理开始时的估计PM积累量与再生需求累积量的比例进行诊断。

公开(公告)号：US08074442B2

公开(公告)日：2011-12-13

申请号：US11629998

申请日：2005-06-21

申请人： Hiroshi Sawada ,  Daisuke Shibata ,  Keisuke Fukuoka

发明人： Hiroshi Sawada ,  Daisuke Shibata ,  Keisuke Fukuoka

IPC分类号： F01N3/00

CPC分类号： F01N11/002 ,  F01N3/035 ,  F01N11/005 ,  F01N13/009 ,  F01N2550/04 ,  F01N2900/0422 ,  F02D41/0055 ,  F02D41/12 ,  Y02T10/47

摘要： An object of the invention is to realize a method of determining an abnormality in a particulate filter (5) capable of trapping and oxidizing particulate matter contained in exhaust gas in which even a minor abnormality in which small quantity of particulate matter can pass through the particulate filter (5) can be determined with a high degree of accuracy. To achieve this object, the abnormality determination method according to the invention, the transition of the inflowing exhaust gas temperature in and the outflowing exhaust gas temperature out of the particulate filter (5) during deceleration operating, and the degree of decrease in the outflowing exhaust gas temperature relative to the inflowing exhaust gas temperature is computed based on the transition. If the degree of decrease exceeds a threshold value, it is determined that the particulate filter (5) is abnormal.

摘要翻译： 本发明的目的是实现一种确定能够捕集和氧化废气中所含的颗粒物质的颗粒过滤器（5）的异常的方法，其中即使少量颗粒物质可以通过颗粒物的微小异常 过滤器（5）可以高精度地确定。 为了达到这个目的，根据本发明的异常判定方法，减速运转时，从微粒过滤器（5）流出的废气温度和排出废气温度的过渡以及排出的排气量的减少程度 基于转变计算相对于流入的废气温度的气体温度。 如果降低程度超过阈值，则确定微粒过滤器（5）异常。

公开(公告)号：US20100115918A1

公开(公告)日：2010-05-13

申请号：US12594753

申请日：2008-11-14

申请人： Hiroshi Sawada ,  Daisuke Shibata

发明人： Hiroshi Sawada ,  Daisuke Shibata

IPC分类号： F01N11/00 ,  G01M15/10

CPC分类号： F01N3/2066 ,  B01D53/30 ,  B01D53/9409 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2255/1021 ,  F01N3/035 ,  F01N3/08 ,  F01N11/00 ,  F01N2550/05 ,  F01N2560/00 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2900/1808 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

摘要： In an exhaust purification system having a urea addition device adding a urea aqueous solution to an NOx catalyst of selective reduction type provided in an exhaust passage in an internal combustion engine, a sensor detecting an ammonia concentration is provided at the downstream side of the NOx catalyst. During fuel cut, a predetermined amount of urea aqueous solution is added. Then, based on a sensor output obtained at this time, an abnormality in at least one of the urea addition device and the urea aqueous solution is detected. The addition of the urea aqueous solution during the fuel cut prevents reactive consumption between urea and NOx. The sensor output corresponding to the amount of the urea aqueous solution is obtained. This output condition is compared with a normal one to allow determination of whether or not an appropriate amount of urea aqueous solution of appropriate quality has been added.

摘要翻译： 在具有将尿素水溶液添加到设置在内燃机的排气通路中的选择还原型的NOx催化剂的尿素添加装置的排气净化系统中，在NOx催化剂的下游侧设置有检测氨浓度的传感器 。 在燃料切断期间，加入预定量的尿素水溶液。 然后，基于此时获得的传感器输出，检测到尿素添加装置和尿素水溶液中的至少一个的异常。 在燃料切断期间加入尿素水溶液可防止尿素和NOx之间的反应性消耗。 获得对应于尿素水溶液量的传感器输出。 将该输出条件与正常输出条件进行比较，以确定是否已经添加了适当量的适当质量的尿素水溶液。

公开(公告)号：US20100089371A1

公开(公告)日：2010-04-15

申请号：US12593001

申请日：2008-03-25

申请人： Daisuke Shibata ,  Hiroshi Sawada ,  Go Ohara

发明人： Daisuke Shibata ,  Hiroshi Sawada ,  Go Ohara

IPC分类号： F02M25/07 ,  F02B47/08

CPC分类号： F02D41/0007 ,  F02B29/0406 ,  F02B37/12 ,  F02D41/0072 ,  F02D41/18 ,  F02D41/221 ,  F02D2200/0406 ,  F02M26/05 ,  F02M26/49 ,  Y02T10/144 ,  Y02T10/47

摘要： A forced air induction system for an internal combustion engine (1) has: a forced air induction device; an EGR valve (10) provided in an EGR passage (9) connecting an intake air passage (14) and an exhaust gas passage (6); and a diagnosis device (20) adapted to execute an abnormality diagnosis for the forced air induction device based on a deviation of the actual boost pressure at the forced air induction device from a target boost pressure. The diagnosis device inhibits execution of the abnormality diagnosis when the operation state of the EGR valve is out of a normal operation range specifically determined.

摘要翻译： 用于内燃机（1）的强制空气感应系统具有：强制空气感应装置; 设置在连接进气通道（14）和排气通道（6）的EGR通路（9）中的EGR阀（10） 以及诊断装置（20），其适于基于强制空气感应装置处的实际增压压力与目标增压压力的偏差来执行强制空气感应装置的异常诊断。 当EGR阀的操作状态不在特定确定的正常操作范围内时，诊断装置禁止执行异常诊断。

公开(公告)号：US07672050B2

公开(公告)日：2010-03-02

申请号：US11486113

申请日：2006-07-14

申请人： Daisuke Shibata ,  Takayuki Nakaya ,  Hidetoshi Takeda ,  Yoshihito Hatazawa ,  Toshiro Kotaki

发明人： Daisuke Shibata ,  Takayuki Nakaya ,  Hidetoshi Takeda ,  Yoshihito Hatazawa ,  Toshiro Kotaki

IPC分类号： G02B5/18

CPC分类号： G02B5/1857 ,  G02B1/02 ,  G02B5/1871 ,  G02B5/1876

摘要： A refractive index controlled diffractive optical element having a two-dimensional refractive index distribution to be written on a transparent material, wherein a first refractive index region with a refractive index n1 and width d1 is formed in a transparent material, and the ith refractive index region with a refractive index ni (assuming ni≠ni−1) and a width di is formed adjacent to the (i−1)th refractive index region and opposite to the (i −2)th refractive index region (at an arbitrary side of the (i−1)th refractive index region when i=2) where i is an integer within a range of 2≦i≦x. Accordingly, a diffractive optical element simultaneously having high diffraction efficiency to a particular order and thinness of the element itself can be obtained.

摘要翻译： 具有二维折射率分布的折射率控制的衍射光学元件被写在透明材料上，其中在透明材料中形成具有折射率n1和宽度d1的第一折射率区域，并且第一折射率区域 具有折射率ni（假设ni≠ni-1），宽度di形成为与第（i-1）折射率区域相邻并且与（i -2）折射率区域（在 i = 2时的（i-1）折射率区域，其中i是在2＆lt; lEE的范围内的整数; i＆nlE; x。 因此，可以获得同时具有特定次序的高衍射效率和元件本身的薄度的衍射光学元件。

公开(公告)号：US20100018186A1

公开(公告)日：2010-01-28

申请号：US12303500

申请日：2007-06-07

申请人： Daisuke Shibata ,  Hiroshi Sawada ,  Keisuke Fukuoka

发明人： Daisuke Shibata ,  Hiroshi Sawada ,  Keisuke Fukuoka

IPC分类号： F01N11/00

CPC分类号： B01D46/0086 ,  B01D2279/30 ,  F01N3/103 ,  F01N9/007 ,  F01N11/002 ,  F01N13/0097 ,  F01N2550/04 ,  F01N2560/08 ,  F01N2900/0412 ,  F01N2900/1406 ,  F02B37/00 ,  Y02T10/47

摘要： An object of the present invention is to provide a technology that enables detection of a fault of a PM trapper with improved accuracy. In the present invention, a pressure sensor 20 that measures a differential pressure across a PM trapper 11 is provided, and a fault of a PM trapper is determined based on an amount of change in the differential pressure across the PM trapper 11 between two different operation states of an internal combustion engine 1 in which the ambient temperature around the pressure sensor 20 falls within a specific temperature range. Since variations in the offset error of the differential pressure sensor 20 caused by changes in the ambient temperature around the differential pressure sensor 20 is made small, the amount of change in the differential pressure across the PM trapper 11 can be measured more accurately, and a fault of the PM trapper 11 can be detected with improved accuracy.

摘要翻译： 本发明的目的是提供一种能够以更高精度检测PM捕集器的故障的技术。 在本发明中，提供了测量PM捕集器11两端的压差的压力传感器20，根据在两个不同操作之间的PM捕集器11的差压的变化量来确定PM捕集器的故障 内燃机1的状态，其中压力传感器20周围的环境温度落在特定温度范围内。 由于差压传感器20周围的环境温度的变化引起的差压传感器20的偏移误差的偏差变小，所以可以更精确地测定PM捕集器11的差压的变化量， 可以提高精度来检测PM捕集器11的故障。

公开(公告)号：US20090242099A1

公开(公告)日：2009-10-01

申请号：US12414864

申请日：2009-03-31

申请人： Toshiatsu NAGAYA ,  Masaya Nakamura ,  Daisuke Shibata ,  Kouji Noda ,  Masatoshi Ikeda

发明人： Toshiatsu NAGAYA ,  Masaya Nakamura ,  Daisuke Shibata ,  Kouji Noda ,  Masatoshi Ikeda

IPC分类号： C03B29/00

CPC分类号： C04B35/495 ,  C04B35/62675 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3251 ,  C04B2235/3294 ,  C04B2235/3298 ,  C04B2235/5292 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/76 ,  C04B2235/762 ,  C04B2235/765 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/787 ,  C04B2235/79 ,  H01L41/083 ,  H01L41/1873 ,  H01L41/43

摘要： A method of producing a piezostack device including multiple piezoelectric ceramic layers of a crystal-orientated ceramic and multiple electrode-containing layers laminated alternately. A raw material mixture is prepared in the mixing step, as an anisotropically shaped powder of oriented particles and a reactive raw powder are mixed. The anisotropically shaped powder and the reactive raw powder are then mixed in amounts at a stoichiometric ratio giving an isotropic perovskite compound, and a Nb2O5 powder and/or a Ta2O5 powder were added thereto. The raw material mixture is molded into a sheet shape in the sheet-forming step, while the crystal faces of the anisotropically shaped powder particles are almost oriented. An electrode material is printed on the green sheet in the printing step. The green sheets obtained after the printing step are laminated in the laminating step. The composite thus obtained is sintered in the sintering step, to give a piezostack device.

摘要翻译： 一种制造包括晶体取向的陶瓷的多个压电陶瓷层和多个层叠的电极层的压电叠层装置的方法。 在混合步骤中制备原料混合物，作为取向颗粒的各向异性粉末和反应性原料粉末混合。 然后将各向异性粉末和活性原料粉末以化学计量比的量混合，得到各向同性的钙钛矿化合物，并向其中加入Nb 2 O 5粉末和/或Ta 2 O 5粉末。 原料混合物在片材形成步骤中成型为片状，而各向异性粉末颗粒的晶面几乎取向。 在印刷步骤中，在生片上印刷电极材料。 在层压步骤中层压印刷步骤后获得的生片。 将由此获得的复合材料在烧结步骤中烧结，得到压电封装。

公开(公告)号：US07520274B2

公开(公告)日：2009-04-21

申请号：US11630863

申请日：2005-06-29

申请人： Hiroshi Sawada ,  Daisuke Shibata

发明人： Hiroshi Sawada ,  Daisuke Shibata

IPC分类号： F02D41/00 ,  F01N3/00

CPC分类号： F01N3/0814 ,  F01N3/0842 ,  F01N13/0097 ,  F01N2550/00 ,  F01N2560/02 ,  F01N2610/03 ,  F02D41/0275 ,  F02D41/028 ,  F02D41/1454 ,  F02D41/1474 ,  F02D41/1495

摘要： In a compression ignition internal combustion engine provided with an NOx storage-reduction catalyst on an exhaust system, when the air fuel ratio of the exhaust gas being in a lean state is controlled to a rich state, a response time (ResS) from a time point an air fuel ratio sensor detects a first air fuel ratio (AF1), which is leaner than a stoichiometric air fuel ratio (AFS), to a time point the air fuel ratio sensor detects a second air fuel ratio (AF2), which is equal to or leaner than the stoichiometric air fuel ratio (AFS) and richer than the first air fuel ratio (AF1). When the response time (ResS) exceeds a stoichiometric air fuel ratio shift reference time (StdS), a determination is made that the air fuel ratio sensor is degraded.

摘要翻译： 在排气系统中设有NOx吸留还原催化剂的压缩点火式内燃机中，当将处于稀薄状态的排气的空燃比控制为浓状态时，从时间起响应时间（ResS） 将空燃比传感器检测到比理论空燃比（AFS）更稀的第一空燃比（AF1）到空燃比传感器检测到第二空燃比（AF2）的时间点 等于或者比化学计量空燃比（AFS）更稀，并且比第一空气燃料比（AF1）更浓。 当响应时间（ResS）超过理论空燃比偏移基准时间（StdS）时，确定空燃比传感器劣化。