公开(公告)号：US08794219B2

公开(公告)日：2014-08-05

申请号：US13116567

申请日：2011-05-26

Applicant: Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Koichi Nakajima

Inventor： Yuji Yasui ,  Eiji Hashimoto ,  Hisao Haga ,  Koichi Nakajima

IPC: F02B47/08 ,  F02M25/07

CPC classification number: F02D41/005 ,  F02M26/05 ,  F02M26/06 ,  F02M26/22 ,  Y02T10/47

Abstract: An EGR control apparatus for an internal combustion engine, which is capable of properly controlling an inert gas amount of two types of EGR gas supplied to cylinders of the engine via two paths different from each other, thereby making it possible to ensure a stable combustion state, reduced exhaust emissions, and improve operability. The EGR control apparatus includes low-pressure and high-pressure EGR devices, and an ECU. The ECU controls the low-pressure and high-pressure EGR gas amounts according to engine speed and demanded torque, and when a combination of engine speed and demanded torque is in a predetermined region, the low-pressure and high-pressure EGR gas amounts are controlled such that inert gas in low-pressure EGR gas exceeds in amount inert gas in high-pressure EGR gas, and the former more exceeds the latter as engine speed is higher or demanded torque is larger.

Abstract translation: 一种用于内燃机的EGR控制装置，其能够通过彼此不同的两条路径适当地控制供给到发动机的气缸的两种EGR气体的惰性气体量，从而可以确保稳定的燃烧状态 ，减少废气排放，提高可操作性。 EGR控制装置包括低压和高压EGR装置和ECU。 ECU根据发动机转速和要求转矩控制低压高压EGR气体量，当发动机转速和要求转矩的组合处于规定区域时，低压高压EGR气体量为 控制使得低压EGR气体中的惰性气体在高压EGR气体中超过惰性气体量，并且当发动机转速较高或要求转矩较大时，前者大于后者。

公开(公告)号：US20070100535A1

公开(公告)日：2007-05-03

申请号：US11642550

申请日：2006-12-21

Applicant: Yuji Yasui ,  Kanako Shimojo ,  Eiji Hashimoto ,  Yshihisa Iwaki

Inventor： Yuji Yasui ,  Kanako Shimojo ,  Eiji Hashimoto ,  Yshihisa Iwaki

IPC: G06F17/00 ,  F02D11/10 ,  G06F19/00

CPC classification number: F02D41/1402 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1423 ,  F02D2041/1431

Abstract: The present invention provides a controller for controlling a modeled plant robustly against disturbance. The controller comprises an estimator and a control unit. The estimator estimates disturbance applied to the plant. The control unit determines an input to the plant so that an output of the plant converges to a desired value. The input to the plant is determined to include a value obtained by multiplying the estimated disturbance by a predetermined gain. Since estimated disturbance is reflected in the input to the plant, control having robustness against disturbance is implemented. The controller may comprise a state predictor. The state predictor predicts the output of the plant based on the estimated disturbance and dead time included in the plant. The control unit determined the input to the plant so that the predicted output converges to a desired value. Since the state predictor allows for the dead time, the accuracy of the control is improved. The estimated disturbance is reflected in the predicted output, an error between the predicted output and an actual output of the plant is removed.

公开(公告)号：US07050865B2

公开(公告)日：2006-05-23

申请号：US10455897

申请日：2003-06-05

Applicant: Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

Inventor： Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

IPC: G05B13/02

CPC classification number: G05B13/047 ,  G05B13/042

Abstract: A control system for a plant is disclosed. According to this system, a model parameter vector of a controlled object model which is obtained by modeling the plant, is identified. A controller controls the plant using the identified model parameter vector. An identifying error of the model parameter vector is calculated, and the calculated identifying error is limited in a predetermined range. An updating vector is calculated according to the limited identifying error. The model parameter vector is calculated by adding the updating vector to a reference vector of the model parameter vector.

公开(公告)号：US06816776B2

公开(公告)日：2004-11-09

申请号：US10401998

申请日：2003-03-28

Applicant: Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

Inventor： Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

IPC: G06F1900

CPC classification number: G05B13/0255

Abstract: A control system for a plant is disclosed. According to this system, a value of a switching function which is defined as a linear function of a deviation between the output of the plant and a control target value, is calculated. A reaching mode input is calculated. The reaching mode input contributes to placing a deviation state quantity which is defined based on the deviation, onto a switching straight line on which the value of the switching function becomes zero. The reaching mode input is corrected according to the value of the switching function. A control input to the plant is calculated with a response specifying type control, and the control input includes the reaching mode input. The plant is controlled with the calculated control input.

Abstract translation: 公开了一种植物的控制系统。 根据该系统，计算定义为植物输出与控制目标值之间的偏差的线性函数的切换函数的值。 计算到达模式输入。 到达模式输入有助于将基于偏差定义的偏差状态量放置在切换函数的值变为零的切换直线上。 达到模式输入根据切换功能的值进行校正。 通过响应指定类型控制来计算到工厂的控制输入，并且控制输入包括到达模式输入。 工厂用计算的控制输入进行控制。

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：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：US07251536B2

公开(公告)日：2007-07-31

申请号：US10656382

申请日：2003-09-05

Applicant: Eiji Hashimoto ,  Tetsuya Ishiguro ,  Masahiro Sato ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Yuji Yasui

Inventor： Eiji Hashimoto ,  Tetsuya Ishiguro ,  Masahiro Sato ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Yuji Yasui

IPC: G05B13/02

CPC classification number: G05B21/02 ,  G05B13/047 ,  G05B17/02

Abstract: A control system for a plant is disclosed. The control system includes a controller for controlling the plant based on a controlled object model which is obtained by modeling the plant. The controlled object model is modeled using an input and an output of the plant which are sampled at intervals of a sampling period which is longer than a control period of the controller. The sampled input of the plant is a filtered control output which is obtained by filtering an output of the controller. The controller carries out a control process of the plant at intervals of the control period.

Abstract translation: 公开了一种植物的控制系统。 该控制系统包括一个控制器，用于通过模拟该设备获得的受控对象模型来控制该设备。 受控对象模型使用工厂的输入和输出进行建模，该输入和输出以比控制器的控制周期长的采样周期的间隔进行采样。 工厂的采样输入是通过对控制器的输出进行滤波而获得的滤波控制输出。 控制器以控制周期的间隔执行工厂的控制过程。

公开(公告)号：US07200484B2

公开(公告)日：2007-04-03

申请号：US10794045

申请日：2004-03-08

Applicant: Yuji Yasui ,  Kanako Shimojo ,  Eiji Hashimoto ,  Yshihisa Iwaki

Inventor： Yuji Yasui ,  Kanako Shimojo ,  Eiji Hashimoto ,  Yshihisa Iwaki

IPC: G06F17/00 ,  F02D11/10

CPC classification number: F02D41/1402 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1423 ,  F02D2041/1431

Abstract: The present invention provides a controller for controlling a modeled plant robustly against disturbance. The controller comprises an estimator and a control unit. The estimator estimates disturbance applied to the plant. The control unit determines an input to the plant so that an output of the plant converges to a desired value. The input to the plant is determined to include a value obtained by multiplying the estimated disturbance by a predetermined gain. Since estimated disturbance is reflected in the input to the plant, control having robustness against disturbance is implemented. The controller may comprise a state predictor. The state predictor predicts the output of the plant based on the estimated disturbance and dead time included in the plant. The control unit determined the input to the plant so that the predicted output converges to a desired value. Since the state predictor allows for the dead time, the accuracy of the control is improved. The estimated disturbance is reflected in the predicted output, an error between the predicted output and an actual output of the plant is removed.

公开(公告)号：US06859717B2

公开(公告)日：2005-02-22

申请号：US10395995

申请日：2003-03-25

Applicant: Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

Inventor： Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

IPC: F02D9/02 ,  F02D11/10 ,  F02D41/14 ,  F02D45/00 ,  G05B13/00 ,  G05B13/02 ,  G05B13/04 ,  G06F19/00

CPC classification number: F02D11/105 ,  F02D41/1402 ,  F02D41/1403 ,  F02D2041/1423 ,  F02D2041/1433

Abstract: A control system for a plant is disclosed. The control system includes a response specifying type controller for controlling the plant with a response specifying type control. The response specifying type controller calculates a nonlinear input according to a sign of a value of a switching function and an output of the plant. The switching function is defined as a linear function of a deviation between the output of the plant and a control target value. A control input from the response specifying type controller to the plant includes the nonlinear input.

Abstract translation: 公开了一种植物的控制系统。 控制系统包括响应指定型控制器，用于控制具有响应指定类型控制的设备。 响应指定型控制器根据切换功能的值和设备的输出的符号来计算非线性输入。 切换功能被定义为工厂输出与控制目标值之间的偏差的线性函数。 从响应指定型控制器到工厂的控制输入包括非线性输入。