公开(公告)号：US6125831A

公开(公告)日：2000-10-03

申请号：US136924

申请日：1998-08-21

Applicant: Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Hiroshi Kitagawa ,  Shusuke Akazaki

Inventor： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Hiroshi Kitagawa ,  Shusuke Akazaki

IPC: F02D41/14 ,  G05B13/02 ,  G05B13/04 ,  G05D11/13 ,  F02M25/00

CPC classification number: F02D41/2461 ,  F02D41/1402 ,  F02D41/1456 ,  G05B13/042 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/143 ,  F02D2041/1433

Abstract: A control system for a plant includes a sensor for detecting an output from the plant, an adaptive controller for controlling a manipulated variable applied to control of the plant in such a manner that an output from the sensor becomes equal to a desired value, and an adaptive parameter-adjusting device for adjusting adaptive parameters used by the adaptive controller. The adaptive parameter-adjusting device has an identification error-calculating device for calculating an identification error of the adaptive parameters and generating an identification error signal indicative of the calculated identification error, and an adjusting device for adjusting the adaptive parameters based on the calculated identification error. The adaptive parameter-adjusting device includes a non-linear filter for generating an output of 0 or approximately 0 in response to the identification error signal when the identification error is within a predetermined range. The adjusting device adjusts the adaptive parameters by using the output from the non-linear filter.

Abstract translation: 一种用于设备的控制系统包括用于检测来自所述设备的输出的传感器，用于控制施加到所述设备的控制的操作变量的自适应控制器，使得所述传感器的输出变得等于期望值，以及 自适应参数调整装置，用于调整自适应控制器使用的自适应参数。 自适应参数调整装置具有识别误差计算装置，用于计算自适应参数的识别误差并产生表示计算出的识别误差的识别误差信号;以及调整装置，用于基于所计算的识别误差来调整自适应参数 。 自适应参数调整装置包括非线性滤波器，用于当识别误差在预定范围内时响应于识别误差信号产生0或大约0的输出。 调节装置通过使用非线性滤波器的输出来调整自适应参数。

公开(公告)号：US6116213A

公开(公告)日：2000-09-12

申请号：US63732

申请日：1998-04-24

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Tadashi Satoh ,  Masaki Ueno

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Tadashi Satoh ,  Masaki Ueno

IPC: F02D31/00 ,  F02D41/02 ,  F02D41/06 ,  F02P5/15 ,  F02D43/00

CPC classification number: F02P5/1506 ,  F02D31/003 ,  F02D41/024 ,  F02D41/067 ,  Y02T10/26 ,  Y02T10/46

Abstract: A control system for controlling an internal combustion engine which discharge exhaust gases through an emission purifier includes a controller which increases the quantity of intake air drawn into the internal combustion engine while the internal combustion engine is idling after the internal combustion engine has started to operate, to a level which is greater by a predetermined increase than the quantity of intake air drawn into the internal combustion engine while the internal combustion engine is idling normally. The controller also generates a command value for ignition timing of the internal combustion engine according to a feedback control process to converge the rotational speed of the internal combustion engine toward a predetermined target rotational speed, and controlling the ignition timing of the internal combustion engine based on the generated command value thereby to retard the ignition timing. The controller establishes the target rotational speed by changing the target rotational speed from a preset rotational speed toward a predetermined idling speed after the rotational speed of the internal combustion engine has reached the preset rotational speed which is higher than the idling speed after the quantity of intake air drawn into the internal combustion engine has started being increased.

Abstract translation: 用于控制通过排放净化器排出废气的内燃机的控制系统包括：控制器，其在内燃机开始运转之后，在内燃机空转的同时增加吸入内燃机的进气量， 达到比内燃机正常空转时吸入内燃机的进气量大的预定增量的水平。 控制器还根据反馈控制处理产生内燃机的点火正时的指令值，以使内燃机的转速朝向预定的目标转速收敛，并且控制内燃机的点火正时基于 所产生的指令值从而延迟点火正时。 控制器通过在内燃机的旋转速度达到高于摄入量后的空转速度的预设转速之后，将目标转速从预设转速改变为预定怠速来建立目标转速 吸入内燃机的空气已经开始增加。

公开(公告)号：US5924281A

公开(公告)日：1999-07-20

申请号：US835192

申请日：1997-04-04

Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Kohei Hanada

Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Kohei Hanada

IPC: F02D45/00 ,  F01N3/24 ,  F02D41/14 ,  G05B13/04 ,  F01N3/00

CPC classification number: G05B13/047 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1473 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1426 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D41/1402 ,  F02D41/1456

Abstract: An air-fuel control system for use with an internal combustion engine has a catalytic converter disposed in an exhaust system of the engine, for purifying an exhaust gas emitted from the engine, a first exhaust gas sensor in the exhaust system for detecting an air-fuel ratio of the exhaust gas upstream of the catalytic converter, a second exhaust gas sensor in the exhaust system for detecting the concentration of a component of the exhaust gas which has passed through the catalytic converter, downstream of the catalytic converter, and a correction quantity calculator for determining a correction quantity to correct an air-fuel ratio of the engine based on an output from the second exhaust gas sensor so as to equalize the concentration of the component of the exhaust gas downstream of the catalytic converter to a predetermined appropriate value. The air-fuel ratio of the engine is controlled based on the determined correction quantity and an output from the first exhaust gas sensor so as to converge the concentration of the component toward the predetermined appropriate value. A state predictor estimates the concentration of the component, detected by the second exhaust gas sensor, after a dead time present in an exhaust system including the catalytic converter between the first and second exhaust gas sensors, based on outputs up to present from the first and second exhaust gas sensors. The correction quantity calculator determines the air-fuel ratio of the engine so as to equalize the concentration of the component to the predetermined appropriate value, based on the estimated concentration of the component.

Abstract translation: 一种与内燃机一起使用的空燃控制系统具有：催化转化器，其设置在发动机的排气系统中，用于净化从发动机排出的排气;排气系统中的第一排气传感器， 催化转化器上游的废气的燃料比，用于检测已经通过催化转化器的排气的成分浓度的排气系统中的第二废气传感器，以及催化转化器的下游的校正量 计算器，用于基于来自第二排气传感器的输出确定校正量以校正发动机的空燃比，以将催化转化器下游的排气的成分的浓度均匀化到预定的适当值。 基于所确定的校正量和来自第一排气传感器的输出来控制发动机的空燃比，以将部件的浓度朝向预定的适当值收敛。 状态预测器基于从第一和第二废气传感器到目前的输出，在包括第一和第二废气传感器之间的催化转化器的排气系统中存在的死区时间之后，估计由第二废气传感器检测到的部件的浓度， 第二排气传感器。 校正量计算器基于所估计的组分浓度，确定发动机的空燃比，以将组分的浓度与预定的适当值相等。

公开(公告)号：US08875497B2

公开(公告)日：2014-11-04

申请号：US13439434

申请日：2012-04-04

Applicant: Hideki Matsunaga ,  Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Naohiro Sato ,  Masafumi Sakota

Inventor： Hideki Matsunaga ,  Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Naohiro Sato ,  Masafumi Sakota

IPC: F01N3/00 ,  F01N3/10 ,  F01N13/00 ,  F01N3/20 ,  F02D41/00 ,  F01N3/08 ,  F02D41/10 ,  F02D41/14 ,  B01D53/94 ,  F02D41/02

CPC classification number: F02D41/0055 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2255/912 ,  F01N3/0814 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/208 ,  F01N13/009 ,  F01N13/0097 ,  F01N2370/04 ,  F01N2560/026 ,  F01N2570/14 ,  F02D41/0275 ,  F02D41/10 ,  F02D41/1446 ,  F02D41/146 ,  F02D2041/1468 ,  F02D2200/0802 ,  F02D2200/0806 ,  Y02A50/2344 ,  Y02A50/2345 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust purification system for an internal combustion engine is provided that can steadily maintain a NOx purification rate of a selective reduction catalyst to be high without allowing the fuel economy or marketability to deteriorate. The exhaust purification system includes a NO2—NOx ratio adjustment mechanism that causes a NO2—NOx ratio to change; and a NO2—NOx ratio perturbation controller that executes NO2—NOx ratio perturbation control so that a NO2 balance of the selective reduction catalyst in a predetermined time period, with NO2 adsorption being positive and NO2 release being negative, is 0. Herein, NO2—NOx ratio perturbation control is defined as control that alternately executes NO2 increase control to cause the NO2—NOx ratio to be greater than a reference value near 0.5, and NO2 decrease control to cause the NO2—NOx ratio to be less than the reference value.

Abstract translation: 提供一种用于内燃机的排气净化系统，其能够稳定地将选择还原型催化剂的NOx净化率维持在高，而不会使燃料经济性或可销售性劣化。 排气净化系统包括使NO2-NOx比变化的NO2-NOx比调节机构; 以及NO2-NOx比扰动控制器，其执行NO2-NOx比扰动控制，使得在NO 2吸附为正，NO2释放为负的预定时间段内的选择还原催化剂的NO 2平衡为0.这里，NO2- NOx比例扰动控制被定义为交替地执行NO2增加控制以使NO 2 -NO x比大于接近0.5的参考值的控制，并且NO 2减少控制以使NO 2 -NOO比小于参考值。

公开(公告)号：US08671660B2

公开(公告)日：2014-03-18

申请号：US12962039

申请日：2010-12-07

Applicant: Yuji Yasui ,  Eiji Hashimoto

Inventor： Yuji Yasui ,  Eiji Hashimoto

IPC: F01N3/00 ,  F01N3/10

CPC classification number: F01N3/2066 ,  F01N3/206 ,  F01N11/00 ,  F01N2550/02 ,  F01N2550/03 ,  F01N2550/05 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/1473 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

Abstract: A catalyst degradation determination device is provided that can determine the degradation of a selective reduction catalyst with high precision while also suppressing a temporary decline in purification performance. By way of controlling a urea injection device, the catalyst degradation determination device increases, in a selective reduction catalyst in a state in which the storage amount is a maximum, the storage amount thereof by a detection reduced-amount portion DSTNH3—JD, and then decreases the amount until it is determined that ammonia slip has occurred. Then, degradation is determined based on the time at which the slip determination flag FNH3—SLIP was set to “1” when fluctuating the storage amount. The detection reduced-amount portion DSTNH3—JD is set to a value that is larger than the storage capacity of the selective reduction catalyst in a degraded state and smaller than the storage capacity of the selective reduction catalyst in a normal state.

Abstract translation: 提供一种能够高精度地确定选择还原型催化剂的降解的催化剂劣化测定装置，同时抑制净化性能的暂时下降。 通过控制尿素喷射装置，催化剂劣化判定装置在存储量最大的状态下的选择还原催化剂中，通过检测减量部分DSTNH3-JD的存储量增加，然后 减少量，直到确定发生氨滑移。 然后，当波动存储量时，基于滑移确定标记FNH3-SLIP被设置为“1”的时间来确定劣化。 检测减量部DSTNH3-JD被设定为大于选择还原型催化剂处于劣化状态的储存容量并且小于选择还原催化剂在正常状态下的储存容量的值。

公开(公告)号：US08459011B2

公开(公告)日：2013-06-11

申请号：US13013505

申请日：2011-01-25

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F01N3/00 ,  F01N3/10

CPC classification number: F01N3/208 ,  F01N3/106 ,  F01N11/00 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2560/021 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

Abstract: A selective reduction catalyst is disposed in an exhaust passage of an engine for reducing NOx in exhaust gases from the engine under existence of a reducing agent. The reducing agent or a reactant for generating the reducing agent is supplied to the upstream side of the selective reduction catalyst. Occurrence of a reducing-agent slip in which the reducing agent is discharged to the downstream side of the selective reduction catalyst is determined. A storage amount indicative of an amount of the reducing agent stored in the selective reduction catalyst is temporarily reduced from the state where the storage amount is at the maximum, and thereafter the storage amount is increased until the occurrence of the reducing-agent slip is detected. A supply correction amount for correcting an amount of the reducing agent is calculated according to an occurrence state of the reducing agent slip when the storage amount is changed.

Abstract translation: 选择还原催化剂设置在用于在还原剂存在下从发动机排出的废气中的NOx的发动机的排气通道中。 将还原剂或用于产生还原剂的反应物供给到选择还原催化剂的上游侧。 确定将还原剂排出到选择还原催化剂的下游侧的还原剂滑移的发生。 从储存量最大的状态暂时减少表示存储在选择还原催化剂中的还原剂的量的储存量，此后，存储量增加，直到检测到还原剂滑移的发生 。 当存储量改变时，根据还原剂滑移的发生状态计算用于校正还原剂量的供给修正量。

公开(公告)号：US20120255286A1

公开(公告)日：2012-10-11

申请号：US13439434

申请日：2012-04-04

Applicant: Hideki MATSUNAGA ,  Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Naohiro Sato ,  Masafumi Sakota

Inventor： Hideki MATSUNAGA ,  Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Naohiro Sato ,  Masafumi Sakota

IPC: F01N3/10

CPC classification number: F02D41/0055 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2255/912 ,  F01N3/0814 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/208 ,  F01N13/009 ,  F01N13/0097 ,  F01N2370/04 ,  F01N2560/026 ,  F01N2570/14 ,  F02D41/0275 ,  F02D41/10 ,  F02D41/1446 ,  F02D41/146 ,  F02D2041/1468 ,  F02D2200/0802 ,  F02D2200/0806 ,  Y02A50/2344 ,  Y02A50/2345 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust purification system for an internal combustion engine is provided that can steadily maintain a NOx purification rate of a selective reduction catalyst to be high without allowing the fuel economy or marketability to deteriorate. The exhaust purification system includes a NO2—NOx ratio adjustment mechanism that causes a NO2—NOx ratio to change; and a NO2—NOx ratio perturbation controller that executes NO2—NOx ratio perturbation control so that a NO2 balance of the selective reduction catalyst in a predetermined time period, with NO2 adsorption being positive and NO2 release being negative, is 0. Herein, NO2—NOx ratio perturbation control is defined as control that alternately executes NO2 increase control to cause the NO2—NOx ratio to be greater than a reference value near 0.5, and NO2 decrease control to cause the NO2—NOx ratio to be less than the reference value.

Abstract translation: 提供一种用于内燃机的排气净化系统，其能够稳定地将选择还原型催化剂的NOx净化率维持在高，而不会使燃料经济性或可销售性劣化。 排气净化系统包括使NO2-NOx比变化的NO2-NOx比调节机构; 以及NO2-NOx比扰动控制器，其执行NO2-NOx比扰动控制，使得在NO 2吸附为正，NO2释放为负的预定时间段内的选择还原催化剂的NO 2平衡为0.这里，NO2- NOx比例扰动控制被定义为交替地执行NO2增加控制以使NO 2 -NO x比大于接近0.5的参考值的控制，并且NO 2减少控制以使NO 2 -NOO比小于参考值。

公开(公告)号：USRE43588E1

公开(公告)日：2012-08-21

申请号：US10800651

申请日：2004-03-16

Applicant: Shusuke Akazaki ,  Kohei Hanada ,  Yuji Yasui ,  Tadashi Satoh ,  Takashi Haga

Inventor： Shusuke Akazaki ,  Kohei Hanada ,  Yuji Yasui ,  Tadashi Satoh ,  Takashi Haga

IPC: F02M25/06

CPC classification number: B01D53/9495 ,  B01D53/9445 ,  B01D53/9486 ,  B01D53/96 ,  B01D2253/108 ,  B01D2253/3425 ,  F01N3/0835 ,  F01N3/0871 ,  F01N3/0878 ,  F01N9/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/36 ,  F01N2250/12 ,  F01N2370/40 ,  F01N2410/00 ,  F01N2410/12 ,  F02D9/04 ,  F02D9/1055 ,  F02D21/08 ,  F02M26/15 ,  F02M26/46 ,  F02M26/49 ,  Y02T10/20 ,  Y02T10/22 ,  Y02T10/47

Abstract: A system for purifying exhaust gas generated by an internal combustion engine including a bypass branching out from the exhaust pipe downstream of a catalyst and merging to the exhaust pipe, an adsorber installed in the bypass, a bypass valve member which closes the bypass, and an EGR conduit connected to the bypass at one end and connected to the air intake system for recirculating the exhaust gas to the air intake system. The bypass valve member is opened for a period after engine startup to introduce the exhaust gas such that the adsorber installed in the bypass adsorbs the unburnt HC component in the exhaust gas. The adsorber adsorbs the HC component when the exhaust temperature rises and the adsorbed component is recirculated to the air intake system through the EGR conduit. In the system, the bypass valve is provided at or close to the branching point in the exhaust pipe and a chamber is provided close to the branching point such that the conduit is connected to the bypass at the one end in the chamber. The bypass valve member is combined with an exhaust pipe valve member as a combination valve such that when the bypass valve member closes the bypass, the exhaust pipe valve member opens the exhaust pipe. With the arrangement, the system can effectively prevent the exhaust pipe from being clogged even when a valve for closing a bypass is stuck in the closed position. At the same time, the system can provide a relatively short EGR conduit for recirculating unburnt HC component adsorbed from the adsorber and the adsorption and desorption are conducted optimally. A system for purifying exhaust gas generated by an internal combustion engine including a bypass branching out from the exhaust pipe downstream of a catalyst and merging to the exhaust pipe, an adsorber installed in the bypass, a bypass valve member which closes the bypass, and an EGR conduit connected to the bypass at one end and connected to the air intake system for recirculating the exhaust gas to the air intake system. The adsorber adsorbs the HC component in the exhaust gas when the exhaust gas temperature rises and the adsorbed component is recirculated to the air intake system through the EGR conduit. The bypass valve member is combined with an exhaust pipe vale member as a combination valve such that when the bypass valve member closes the bypass, the exhaust pipe valve member opens the exhaust pipe.

公开(公告)号：US08185218B2

公开(公告)日：2012-05-22

申请号：US11802002

申请日：2007-05-18

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: G05B13/02 ,  G06F19/00 ,  F02B17/00 ,  F02B5/00

CPC classification number: G05B13/041 ,  F02D35/023 ,  F02D41/0002 ,  F02D41/1402 ,  F02D41/3035 ,  F02D2041/001 ,  F02D2041/1418 ,  F02D2041/1432 ,  F02D2041/1433 ,  F02D2200/1002 ,  F02D2250/18

Abstract: A control apparatus which is capable of ensuring both high-level stability and accuracy of control, even when controlling a controlled object having extremal characteristics or a controlled object a controlled object model of which cannot be represented. The control apparatus 1 includes a cooperative controller 30, an onboard model analyzer 40, and a model corrector 60. The model corrector 60 calculates the model correction parameter matrix θ, so as to correct the controlled object model defining the relationship between the intake opening angle θlin and the exhaust reopening angle θrbl and the indicated mean effective pressure Pmi. The onboard model analyzer 40 calculates first and second response indices RI1 and RI2 representative of correlations between θlin, θrbl, and Pmi, based on the controlled object model corrected using θ. The cooperative controller 30 calculates the θlin and θrbl such that Pmi is caused to converge to a target value Pmi_cmd, and determines an increasing/decreasing rate and increasing/decreasing direction of θlin and θrbl according to RI1 and RI2.

Abstract translation: 即使控制具有极端特性的受控对象或受控对象的控制对象模型不能被表示，也能够确保高水平的稳定性和控制精度的控制装置。 控制装置1包括协同控制器30，车载模型分析器40和模型校正器60.模型校正器60计算模型校正参数矩阵，以便校正限定进气开度之间的关系的受控对象模型 角度和角度; lin和排气重新开放角度; rbl和指示的平均有效压力Pmi。 板载模型分析器40基于使用＆thetas校正的受控对象模型来计算表示“the”之间的相关性的第一和第二响应指数RI1和RI2; 协调控制器30计算出所述的线和弦; rbl，使得Pmi被收敛到目标值Pmi_cmd，并且根据RI1和RI确定该线性的增加/减小速率和增加/减小的方向; RI2。

公开(公告)号：US20120095658A1

公开(公告)日：2012-04-19

申请号：US13272992

申请日：2011-10-13

Applicant: Yuji YASUI

Inventor： Yuji YASUI

IPC: B60W10/11 ,  G05B13/00 ,  B60W30/18 ,  F02D41/30 ,  F02D28/00

CPC classification number: F02D41/1403

Abstract: A control apparatus which is capable of enhancing the accuracy of control of a controlled object having characteristics that dead time and response delay thereof vary. The control apparatus includes an ECU. The ECU calculates four predicted values as values of a controlled variable associated with respective times when four dead times elapse, respectively, calculates four weight function values associated with an exhaust gas volume, and calculates four products by multiplying the predicted values by the weight function values, respectively. The ECU sets the total sum of the four products as a predicted equivalent ratio and calculates an air-fuel ratio correction coefficient such that the predicted equivalent ratio becomes equal to a target equivalent ratio.

Abstract translation: 一种控制装置，其能够提高控制对象的控制精度，该控制对象的死区时间和响应延迟变化。 控制装置包括ECU。 ECU计算四个预测值，作为与四个死时间相应的时间相关联的受控变量的值分别计算与排气量相关联的四个加权函数值，并且通过将预测值乘以权重函数值来计算四个乘积 ， 分别。 ECU将四个乘积的总和设定为预测的当量比，并且计算出预测的当量比等于目标当量比的空燃比校正系数。