公开(公告)号：US08260576B2

公开(公告)日：2012-09-04

申请号：US13287460

申请日：2011-11-02

申请人： Yasushi Iwazaki ,  Hiroshi Sawada ,  Takahiro Joko ,  Masaya Kawaji

发明人： Yasushi Iwazaki ,  Hiroshi Sawada ,  Takahiro Joko ,  Masaya Kawaji

IPC分类号： G06F11/30

CPC分类号： G01N27/4175 ,  F02D41/1454 ,  F02D41/222

摘要： An exhaust gas sensor abnormality diagnostic device includes an exhaust gas sensor, and a judgment means that judges whether execution conditions are established for making an abnormality diagnosis of element breakage in the exhaust gas sensor. The device also includes an abnormality diagnosis means that makes the abnormality diagnosis in accordance with an output signal generated by the exhaust gas sensor. Further, when the integrated value of intake air amounts of an internal combustion engine is not smaller than a predetermined value, the judgment means judges that the execution conditions are established. The abnormality diagnosis means cancels the establishment of the execution conditions when an intake air amount of the internal combustion engine remains less than a predetermined value for a predetermined period of time.

公开(公告)号：US08240130B2

公开(公告)日：2012-08-14

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： F01N3/00 ,  F01N3/10 ,  F02B77/08 ,  F02D17/04 ,  F02M63/02

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：US20120173116A1

公开(公告)日：2012-07-05

申请号：US13389082

申请日：2009-08-06

申请人： Yasushi Iwazaki ,  Hiroshi Miyamoto ,  Fumihiko Nakamura ,  Hiroshi Sawada ,  Toru Kidokoro

发明人： Yasushi Iwazaki ,  Hiroshi Miyamoto ,  Fumihiko Nakamura ,  Hiroshi Sawada ,  Toru Kidokoro

IPC分类号： G01M15/10

CPC分类号： F02D41/008 ,  F02D41/1456

摘要： An air-fuel ratio imbalance among cylinders determining apparatus according to the present invention obtains an output Vabyfs of an air-fuel ratio sensor disposed at a portion downstream of an exhaust gas aggregated portion of an exhaust gas passage, and obtains a second-order differential value d2AF (a change rate of a change rate of a detected air-fuel ratio abyfs) of a detected air-fuel ratio abyfs represented by the air-fuel ratio sensor output Vabyfs. The imbalance determining apparatus determines that an air-fuel ratio imbalance state among cylinders is occurring when a detected air-fuel ratio second-order differential corresponding value (for example, a second-order differential value d2AF per se) obtained in accordance with the second-order differential value d2AF is larger than a first threshold value.

摘要翻译： 根据本发明的气缸确定装置之间的空燃比不平衡获得设置在排气通道的排气集中部分下游的空燃比传感器的输出Vabyfs，并获得二阶微分 由空燃比传感器输出Vabyfs表示的检测空燃比abyfs的值d2AF（检测空燃比abyfs的变化率的变化率）。 不平衡确定装置确定当根据第二个所获得的检测到的空燃比二阶差分对应值（例如，二阶差分值d2AF本身）发生气缸之间的空燃比不平衡状态时 - 阶微分值d2AF大于第一阈值。

公开(公告)号：US20120116651A1

公开(公告)日：2012-05-10

申请号：US13257842

申请日：2009-09-08

申请人： Hiroshi Miyamoto ,  Hiroshi Sawada ,  Yasushi Iwazaki ,  Tatsuya Tsuji ,  Toru Kidokoro

发明人： Hiroshi Miyamoto ,  Hiroshi Sawada ,  Yasushi Iwazaki ,  Tatsuya Tsuji ,  Toru Kidokoro

IPC分类号： F02D41/30

CPC分类号： F02D41/30 ,  F02D41/1495 ,  F02D41/221 ,  F02D2041/228 ,  Y02T10/40

摘要： When the intake air amount is smaller than the specific intake air amount, the unit air-fuel ratio change amount calculated during the engine operation is corrected such that the unit air-fuel ratio change amount increases in the condition that the base unit air-fuel ratio change amount is an upper limit and when the intake air amount is greater than the specific intake air amount, the unit air-fuel ratio change amount calculated during the engine operation is corrected such that the unit air-fuel ratio change amount decreases in the condition that the base unit air-fuel ratio change amount is a lower limit. When the corrected unit air-fuel ratio change amount is greater than the judgment value, it is judged that the inter-cylinder air-fuel ratio imbalance condition occurs.

摘要翻译： 当进气量小于特定进气量时，在发动机运转中计算出的单位空燃比变化量被校正为使得单位空燃比变化量在基本单位空气燃料 比例变化量为上限，当进气量大于特定进气量时，在发动机运转中计算出的单位空燃比变化量被校正，使得单位空燃比变化量在 条件是基本单位空燃比变化量是下限。 当校正单位空燃比变化量大于判定值时，判断为缸内空燃比不平衡状态发生。

公开(公告)号：US08171723B2

公开(公告)日：2012-05-08

申请号：US12674445

申请日：2008-12-04

申请人： Taiga Hagimoto ,  Hiroshi Sawada ,  Daisuke Shibata

发明人： Taiga Hagimoto ,  Hiroshi Sawada ,  Daisuke Shibata

IPC分类号： F01N11/00 ,  F01N3/20

CPC分类号： F01N3/2066 ,  F01N11/00 ,  F01N2550/02 ,  F01N2550/03 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2570/14 ,  F01N2610/02 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

摘要： When the NOx SCR catalyst (15) deteriorates, the NOx removal efficiency increases with an increase in the catalyst temperature as indicated by the curves B1 and B2. When there is an irregularity in the amount or quality of aqueous urea solution that is supplied to the NOx SCR catalyst, the NOx removal efficiency decreases at a constant rate as indicated by the curve C. When the NOx removal efficiency is first within the region X2 and then brought into the region Y1, it is determined that the NOx SCR catalyst deteriorates. When the NOx removal efficiency is first within the region X2 and then brought into the region Y2, it is determined that there is an irregularity in the amount or quality of the aqueous urea solution that is supplied to the NOx SCR catalyst.

摘要翻译： 当NOx SCR催化剂（15）劣化时，如由曲线B1和B2所示，NOx去除效率随着催化剂温度的升高而增加。 当供给到NOx SCR催化剂的尿素水溶液的量或质量不均匀时，NOx去除效率以曲线C所示的恒定速率降低。当NOx去除效率首先在区域X2内时 然后进入区域Y1，确定NOx SCR催化剂劣化。 当NOx去除效率首先在区域X2内并且然后进入区域Y2时，确定供应到NOx SCR催化剂的尿素水溶液的量或质量存在不规则性。

公开(公告)号：US08067118B2

公开(公告)日：2011-11-29

申请号：US12518513

申请日：2007-12-26

申请人： Motoharu Saito ,  Hideyuki Koga ,  Katsutoshi Takeda ,  Hiroshi Sawada ,  Masahisa Fujimoto

发明人： Motoharu Saito ,  Hideyuki Koga ,  Katsutoshi Takeda ,  Hiroshi Sawada ,  Masahisa Fujimoto

IPC分类号： H01M4/13 ,  H01M4/00 ,  H01M4/58 ,  H01M4/50

CPC分类号： H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/058 ,  H01M2004/028 ,  Y10T29/49108

摘要： A mixed positive electrode active material is used. The mixed positive electrode active material is obtained by mixing a layered oxide whose initial charge-discharge efficiency when lithium metal is used for a counter electrode is less than 100% (hereinafter referred to as a first layered oxide) and a layered oxide whose initial charge-discharge efficiency is 100% or more (hereinafter referred to as a second layered oxide). Examples of the first layered oxide include Li1+aMnxCoyNizO2. A sodium oxide such as LiANaBMnXCoYNiZO2 other than a layered compound from which lithium is previously extracted by acid treatment or the like can be used as the second layered oxide whose initial charge-discharge efficiency is 100% or more. A layered oxide obtained by replacing (ion exchange) sodium in the foregoing LiANaBMnXCoYNiZO2 with lithium can be also used as the second layered oxide.

摘要翻译： 使用混合的正极活性物质。 混合正极活性物质通过混合使用锂金属的初期充电 - 放电效率低于100％的层状氧化物（以下称为第一层状氧化物）和层状氧化物，其初始电荷 - 放电效率为100％以上（以下称为第二层状氧化物）。 第一层状氧化物的实例包括Li1 + aMnxCoyNiO2。 作为初期充放电效率为100％以上的第二层状氧化物，可以使用除了通过酸处理等预先提取锂的层状化合物以外的LiANaBMnXCoYNiZO2等氧化钠。 通过用锂替代上述LiANaBMnXCoYNiZO2中的（离子交换）钠获得的层状氧化物也可以用作第二层状氧化物。

公开(公告)号：US07980059B2

公开(公告)日：2011-07-19

申请号：US12097072

申请日：2006-12-14

申请人： Daisuke Shibata ,  Hiroshi Sawada

发明人： Daisuke Shibata ,  Hiroshi Sawada

IPC分类号： F01N3/00

CPC分类号： B01D53/9431 ,  B01D53/9495 ,  F01N3/0807 ,  F01N3/0842 ,  F01N3/0878 ,  F01N3/2053 ,  F01N3/206 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/026 ,  Y02T10/47

摘要： An object is to estimate the degree of deterioration of an NOx catalyst with improved accuracy in an exhaust gas purification system having the NOx catalyst provided in an exhaust passage. According to the present invention, an NOx sensor is provided downstream of an NOx catalyst, and the difference between an estimated value of the NOx concentration in the exhaust gas in the exhaust passage upstream of the NOx catalyst and a detection value of the NOx sensor at a time when NOx in the exhaust gas is not removed in the NOx catalyst is calculated. In addition, in estimating the degree of deterioration of the NOx catalyst, the estimated value of the NOx concentration in the exhaust gas in the exhaust passage upstream of the NOx catalyst is corrected based on this difference, and the degree of deterioration of the NOx catalyst is estimated based on the difference between this corrected value and the detection value of the NOx sensor.

摘要翻译： 本发明的目的是在具有设置在排气通路中的NOx催化剂的排气净化系统中，通过提高精度来估计NOx催化剂的劣化程度。 根据本发明，NOx传感器设置在NOx催化剂的下游，NOx排出通道上游排气中的排气中NOx浓度的估计值与NOx传感器的检测值之间的差值 计算在NOx催化剂中未排出废气中的NOx的时间。 此外，在推定NOx催化剂的劣化程度时，基于该差异来校正NOx催化剂上游排气通路中的排气中的NOx浓度的推定值，NOx催化剂的劣化程度 基于该校正值与NOx传感器的检测值之间的差异来估计。

公开(公告)号：US07849672B2

公开(公告)日：2010-12-14

申请号：US11790028

申请日：2007-04-23

申请人： Daisuke Shibata ,  Hiroshi Sawada ,  Satoru Maeda

发明人： Daisuke Shibata ,  Hiroshi Sawada ,  Satoru Maeda

IPC分类号： F01N3/00

CPC分类号： F01N11/00 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/36 ,  F01N2550/05 ,  F01N2610/03 ,  F02D41/221 ,  F02D41/402 ,  Y02T10/47

摘要： An object of the invention is to diagnose a failure of an addition valve provided in the exhaust system of an internal combustion engine. To achieve the object, post injection through a fuel injection valve of the internal combustion engine and reducing agent addition through the reducing agent addition valve are performed at different timings, the quantity of fuel injected through the fuel injection valve when the post injection is performed and the quantity of reducing agent added through the reducing agent addition valve when the reducing agent addition is performed are estimated based on a same parameter, and it is diagnosed that the reducing agent addition valve has a failure on condition that the difference between the estimated fuel quantity and the estimated reducing agent quantity exceeds a predetermined quantity.

摘要翻译： 本发明的目的是诊断设置在内燃机的排气系统中的添加阀的故障。 为了实现该目的，通过内燃机的燃料喷射阀和通过还原剂添加阀添加的还原剂的后喷射在不同的时刻进行，在执行后喷射时通过燃料喷射阀喷射的燃料量;以及 在进行还原剂添加时，通过还原剂添加阀添加的还原剂的量基于相同的参数来推定，并且在诊断为还原剂添加阀具有失效的条件下，估计燃料量 并且估计的还原剂量超过预定量。

公开(公告)号：US07838151B2

公开(公告)日：2010-11-23

申请号：US11517354

申请日：2006-09-08

申请人： Hideyuki Koga ,  Hiroshi Sawada ,  Katsutoshi Takeda ,  Masahisa Fujimoto

发明人： Hideyuki Koga ,  Hiroshi Sawada ,  Katsutoshi Takeda ,  Masahisa Fujimoto

IPC分类号： H01M4/58

CPC分类号： H01M10/0569 ,  H01M4/38 ,  H01M4/386 ,  H01M4/40 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/4285

摘要： A positive electrode active material including lithium (Li), nickel (Ni), manganese (Mn) and a transition metal that can be in the hexavalent state is used. As the transition metal that can be in the hexavalent state, for example, one or both of tungsten (W) and molybdenum (Mo) can be used. As the positive electrode active material including a plurality of materials as mentioned above, LiNi0.5Mn0.5O2 can be used. As a negative electrode, a carbon material or a silicon material capable of storing and releasing lithium ions can be used.

摘要翻译： 使用包含锂（Li），镍（Ni），锰（Mn）和能够处于六价态的过渡金属的正极活性物质。 作为可以处于六价态的过渡金属，例如可以使用钨（W）和钼（Mo）中的一种或两种。 作为包含上述多种材料的正极活性物质，可以使用LiNi0.5Mn0.5O2。 作为负极，可以使用能够储存和释放锂离子的碳材料或硅材料。

公开(公告)号：US20100129715A1

公开(公告)日：2010-05-27

申请号：US12532483

申请日：2008-03-21

申请人： Motoharu Saito ,  Katsutoshi Takeda ,  Masahisa Fujimoto ,  Hiroshi Sawada

发明人： Motoharu Saito ,  Katsutoshi Takeda ,  Masahisa Fujimoto ,  Hiroshi Sawada

IPC分类号： H01M4/50

CPC分类号： H01M4/525 ,  H01M4/505

摘要： A positive electrode active material is made of sodium containing oxide. The sodium containing oxide contains NaALiBMO2±α that belongs to a space group P63/mmc of a hexagonal system, where the M includes at least one of manganese (Mn) and cobalt (Co). In the NaALiBMO2±α, the composition ratio A of sodium (Na) is not less than 0.5 and not more than 1.1, the composition ratio B of lithium (Li) is larger than 0 and not more than 0.3, and the α is not less than 0 and not more than 0.3.

摘要翻译： 正极活性物质由含氧化钠制成。 含钠氧化物含有属于六方晶系的空间群P63 / mmc的NaALiBMO2±α，其中M包括锰（Mn）和钴（Co）中的至少一种。 在NaALiBMO2±α中，钠（Na）的组成比A不小于0.5且不大于1.1，锂（Li）的组成比B大于0且不大于0.3，α不为 小于0且不大于0.3。