公开(公告)号：US06834645B2

公开(公告)日：2004-12-28

申请号：US10290394

申请日：2002-11-08

Applicant: Osamu Takizawa ,  Yuji Yasui

Inventor： Osamu Takizawa ,  Yuji Yasui

IPC: F02D4100

CPC classification number: F02D41/182 ,  F02D41/1456 ,  F02D41/2454 ,  F02D41/2474 ,  F02D41/2477 ,  F02D41/2483 ,  F02M26/48 ,  F02M26/53

Abstract: A fuel supply control system for an internal combustion engine wherein a basic fuel amount supplied to said engine can be calculated according to the intake air flow rate detected by said intake air flow rate sensor. An air-fuel ratio correction coefficient can be calculated for correcting an amount of fuel to be supplied to the engine so that the detected air-fuel ratio coincides with a target air-fuel ratio. At least one correlation parameter vector which defines a correlation between the air-fuel ratio correction coefficient and the intake air flow rate detected by the intake air flow sensor, can be calculated using a sequential statistical processing algorithm. A learning correction coefficient relating to a change in characteristics of the intake air flow rate sensor can be calculated using the correlation parameter. An amount fuel to be supplied to the engine can be controlled using the basic fuel amount, the air-fuel ratio correction coefficient, and the learning correction coefficient.

Abstract translation: 一种用于内燃机的燃料供应控制系统，其中可以根据由所述进气流量传感器检测的进气流量来计算供应给所述发动机的基本燃料量。 可以计算空燃比校正系数，以校正要供给到发动机的燃料量，使得检测到的空燃比与目标空燃比一致。 可以使用连续统计处理算法来计算定义空气 - 燃料比校正系数和由进气流量传感器检测到的进气流量之间的相关性的至少一个相关参数矢量。 可以使用相关参数来计算与进气流量传感器的特性变化有关的学习校正系数。 可以使用基本燃料量，空燃比校正系数和学习校正系数来控制向发动机供给的燃料量。

公开(公告)号：US06990402B2

公开(公告)日：2006-01-24

申请号：US10727056

申请日：2003-12-04

Applicant: Yuji Yasui ,  Osamu Takizawa ,  Takahide Mizuno

Inventor： Yuji Yasui ,  Osamu Takizawa ,  Takahide Mizuno

IPC: B60T7/12

CPC classification number: F02D41/1402 ,  F02D41/008 ,  F02D41/1456 ,  F02D41/1458 ,  F02D41/182 ,  F02D41/2454 ,  F02D41/2477 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/1423 ,  F02D2041/1433 ,  F02D2041/1437 ,  F02D2200/0402

Abstract: There is provided a control system capable of realizing a highly robust control having a large margin of stability. The ECU of the control system controls the air-fuel ratio of exhaust gases emitted from the first to fourth cylinders. The ECU 2 estimates an estimation value of a detected air-fuel ratio, from a model defining a relation between the estimation value and a plurality of simulation values, and identifies an intake air amount variation coefficient such the estimation value becomes equal to a detected air-fuel ratio. The ECU calculates an air-fuel ratio variation correction coefficient according to the identified air-fuel ratio variation coefficient, on a cylinder-by-cylinder basis, and a learned correction value of the air-fuel ratio variation correction coefficient, on a cylinder-by-cylinder basis, and corrects a basic fuel injection amount by the air-fuel ratio variation correction coefficient and the learned correction value, on a cylinder-by-cylinder basis, to thereby calculate a final fuel injection amount.

Abstract translation: 提供了能够实现具有大的稳定性的高度鲁棒的控制的控制系统。 控制系统的ECU控制从第一至第四气缸排放的废气的空燃比。 ECU2根据定义了估计值和多个模拟值之间的关系的模型来估计检测到的空燃比的估计值，并且识别出该估计值等于检测到的空气的进气量变化系数 - 燃料比。 ECU根据所识别的空燃比变动系数，在逐缸的基础上计算空燃比变动校正系数和空燃比变动校正系数的学习校正值， 并且通过空燃比变化校正系数和学习校正值在逐个气缸的基础上校正基本燃料喷射量，从而计算最终燃料喷射量。

公开(公告)号：US10227940B2

公开(公告)日：2019-03-12

申请号：US14415038

申请日：2012-07-17

Applicant: Yuji Yasui ,  Hideki Matsunaga ,  Hans Hardam ,  Toshiharu Takahashi ,  Masatoshi Yamada ,  Hiroshi Uike

Inventor： Yuji Yasui ,  Hideki Matsunaga ,  Hans Hardam ,  Toshiharu Takahashi ,  Masatoshi Yamada ,  Hiroshi Uike

IPC: F02D41/02 ,  F02D41/14 ,  F01N3/20 ,  F02D41/00

Abstract: The objective of the present invention is to provide a control device for an engine that enables precise control of the equivalence ratio. The system from the fuel injection amount to the output from a LAF sensor is modeled as an injection amount-sensor output model by means of a model equation containing model parameters and a lag coefficient. The system from the equivalence ratio to the LAF sensor output is modeled as a port equivalence ratio-sensor output model by means of a model equation containing the lag coefficient. The control device is equipped with: a feedback-use identifier that successively identifies values for the model parameters; a LAF lag compensation-use identifier that successively identifies values for the lag coefficient; and a stoichiometric driving mode controller that determines the value of a fuel injection amount.

公开(公告)号：US20150167570A1

公开(公告)日：2015-06-18

申请号：US14415054

申请日：2012-07-17

Applicant: Yuji Yasui ,  Hideki Matsunaga ,  Hans Hardam ,  Toshiharu Takahashi ,  Masatoshi Yamada ,  Hiroshi Uike

Inventor： Yuji Yasui ,  Hideki Matsunaga ,  Hans Hardam ,  Toshiharu Takahashi ,  Masatoshi Yamada ,  Hiroshi Uike

IPC: F02D41/14 ,  F02D41/26 ,  F01N3/18

CPC classification number: F02D41/1475 ,  F01N3/18 ,  F01N3/2066 ,  F02D41/0052 ,  F02D41/0275 ,  F02D41/1402 ,  F02D41/1456 ,  F02D41/146 ,  F02D41/1477 ,  F02D41/1493 ,  F02D41/1495 ,  F02D41/263 ,  F02D41/402 ,  F02D2041/1423 ,  F02D2041/143 ,  F02D2041/1431 ,  F02D2041/228 ,  F02M26/15 ,  F02M26/23 ,  Y02T10/24 ,  Y02T10/44 ,  Y02T10/47

Abstract: The objective of the present invention is to provide an exhaust purification system that is capable of purifying exhaust gas during both lean and stoichiometric driving. The exhaust purification system is equipped with: a feedback-use identifier, which identifies parameter values such that the error between the output value from a LAF sensor and the estimated value for the LAF sensor output as obtained from a model equation is minimized; and a stoichiometric driving mode controller. The controller performs feedback control and thereby determines the fuel injection amount such that in the stoichiometric driving mode the equivalence ratio value as calculated from the parameters reaches a target value which is set such that a three-way purification reaction occurs in an under-engine catalyst. The identifier identifies the model parameters before feedback control is initiated by the controller.

Abstract translation: 本发明的目的是提供一种排气净化系统，其能够在贫气和理论空燃比中净化废气。 排气净化系统配备有：反馈使用标识符，其识别参数值，使得从模型方程获得的来自LAF传感器的输出值与LAF传感器输出的估计值之间的误差最小化; 和化学计量驱动模式控制器。 控制器执行反馈控制，从而确定燃料喷射量，使得在化学计量驱动模式中，根据参数计算的当量比值达到目标值，该目标值设定为在发动机内催化剂下发生三次净化反应 。 在控制器启动反馈控制之前，标识符识别模型参数。

公开(公告)号：US08965664B2

公开(公告)日：2015-02-24

申请号：US13259021

申请日：2009-03-27

Applicant: Yuji Yasui ,  Koichi Nakajima ,  Michael Fischer

Inventor： Yuji Yasui ,  Koichi Nakajima ,  Michael Fischer

IPC: F02D41/00 ,  G05B21/00 ,  F02D41/14 ,  G05B13/04

CPC classification number: F02D41/1402 ,  F02D41/0062 ,  F02D41/1405 ,  F02D41/1456 ,  F02D41/1458 ,  F02D41/1463 ,  F02D2041/143 ,  G05B13/041 ,  Y02T10/47

Abstract: A controller for a plant that controls a controlled variable for the plant in accordance with estimated values, allowing to reduce any error in the estimated values that is caused by solid variation or aging of the plant. A controller for an exhaust emission control system has an estimated Inert-EGR value calculation section (711) to calculate the estimated value IEGRHAT for the Inert-EGR amount on the basis of an input vector U through a neural network, an estimated LAF sensor output value calculation section (712) to calculate the estimated value ΦHAT for an exhaust air-fuel ratio correlating with the Inert-EGR amount on the basis of the input vector U through the neural network, an LAF sensor (34) to detect the exhaust air-fuel ratio, and a nonlinear adaptive corrector (713) to calculate the adaptive input UVNS such that the estimated error EHAT between the detected value ΦACT from the LAF sensor (34) and the estimated output value ΦHAT of the LAF sensor (34) is minimized.

Abstract translation: 用于根据估计值控制工厂的受控变量的设备的控制器，允许减少由固体变化或植物老化引起的估计值的任何误差。 用于废气排放控制系统的控制器具有估计的惰性 - EGR值计算部（711），用于基于通过神经网络的输入向量U，估计的LAF传感器输出来计算用于惰性 - EGR量的估计值IEGRHAT 值计算部（712），基于通过神经网络的输入矢量U计算与惰性EGR量相关的排气空燃比的推定值ΦHAT，检测排气的LAF传感器（34） 和非线性自适应校正器（713），以计算自适应输入UVNS，使得来自LAF传感器（34）的检测值ΦACT与LAF传感器（34）的估计输出值ΦHAT之间的估计误差EHAT为 最小化。

公开(公告)号：US08862248B2

公开(公告)日：2014-10-14

申请号：US13289062

申请日：2011-11-04

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: G05B13/02 ,  G05B11/01 ,  B60W10/04 ,  B60W10/10 ,  G06F7/00 ,  G06F17/00 ,  G06F19/00

CPC classification number: G05B13/042 ,  G05B2219/25298 ,  Y10T477/675 ,  Y10T477/679

Abstract: A control apparatus capable of improving the control accuracy and stability when controlling a controlled object with a predetermined restraint condition between a plurality of model parameters, or a controlled object having a lag characteristic, using a control target model of a discrete-time system. The control apparatus has an ECU which arranges a control target model including two model parameters such that terms not multiplied by the model parameters and terms multiplied by the same are on different sides of the model, respectively. Assuming the different sides represent a combined signal value and an estimated combined signal value, respectively, the ECU calculates onboard identified values of the model parameters such that an identification error between the signal values is minimized, and calculates an air-fuel ratio correction coefficient using the identified values and a control algorithm derived from the control target model.

Abstract translation: 使用离散时间系统的控制对象模型，能够在多个模型参数之间的预定约束条件或具有滞后特性的受控对象来控制受控对象时提高控制精度和稳定性的控制装置。 控制装置具有：ECU，其配置包括两个模型参数的控制对象模型，使得不与模型参数相乘的项和与其相乘的项分别位于模型的不同侧。 假设不同侧分别表示组合信号值和估计的组合信号值，则ECU计算模型参数的车内识别值，使得信号值之间的识别误差最小化，并且使用以下方式计算空燃比校正系数： 识别的值和从控制目标模型导出的控制算法。

公开(公告)号：US08738245B2

公开(公告)日：2014-05-27

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。

公开(公告)号：US08667782B2

公开(公告)日：2014-03-11

申请号：US13013498

申请日：2011-01-25

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F01N3/18

CPC classification number: F01N3/208 ,  F01N3/103 ,  F01N11/00 ,  F01N2610/02 ,  F01N2900/0422 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust gas purifying apparatus for an internal combustion engine is provided. A selective reduction catalyst is disposed in an exhaust passage of the 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. An accuracy of the reducing agent supply is determined according to an occurrence state of the reducing agent slip when the storage amount is changed.

Abstract translation: 提供一种用于内燃机的废气净化装置。 在发动机的排气通道中设置选择还原催化剂，用于在还原剂存在下还原来自发动机的废气中的NOx。 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，储存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来确定还原剂供应的精度。

公开(公告)号：US20120117011A1

公开(公告)日：2012-05-10

申请号：US13282086

申请日：2011-10-26

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

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

IPC: G06N3/08 ,  F02D28/00

CPC classification number: G06N3/02 ,  F02D13/0226 ,  F02D28/00 ,  F02D41/0002 ,  F02D41/0047 ,  F02D41/1405 ,  F02D2041/0017 ,  F02M26/05 ,  F02M26/06 ,  F02M26/10 ,  F02M26/15 ,  F02M26/24 ,  F02M26/48 ,  G05B13/027 ,  Y02T10/18

Abstract: A control system for a plant e.g. as a non-linear system, which is capable of properly suppressing interaction occurring between a plurality of control inputs and a plurality of controlled variables, thereby making it possible to properly control the controlled variables and easily design the control system. In the control system, each of a plurality of interaction suppression parameters for correcting the control inputs, respectively, such that the interaction is suppressed is calculated using a neural network constructed by using, out of the plurality of control inputs, a control input other than a control input corrected by a calculated interaction suppression parameter, as an input, and the interaction suppression parameter as an output.

Abstract translation: 用于植物的控制系统。 作为非线性系统，其能够适当地抑制在多个控制输入和多个受控变量之间发生的交互，从而使得可以适当地控制受控变量并容易地设计控制系统。 在控制系统中，分别使用通过使用在多个控制输入中使用除了多个控制输入之外的控制输入构成的神经网络来分别校正控制输入以使得交互被抑制的多个交互抑制参数中的每一个 通过计算的交互抑制参数校正的控制输入作为输入，并且交互抑制参数作为输出。

公开(公告)号：US20120014838A1

公开(公告)日：2012-01-19

申请号：US13259021

申请日：2009-03-27

Applicant: Yuji Yasui ,  Koichi Nakajima ,  Michael Fischer

Inventor： Yuji Yasui ,  Koichi Nakajima ,  Michael Fischer

IPC: G05B21/00

CPC classification number: F02D41/1402 ,  F02D41/0062 ,  F02D41/1405 ,  F02D41/1456 ,  F02D41/1458 ,  F02D41/1463 ,  F02D2041/143 ,  G05B13/041 ,  Y02T10/47

Abstract: A controller for a plant that controls a controlled variable for the plant in accordance with estimated values, allowing to reduce any error in the estimated values that is caused by solid variation or aging of the plant. A controller for an exhaust emission control system has an estimated Inert-EGR value calculation section (711) to calculate the estimated value IEGRHAT for the Inert-EGR amount on the basis of an input vector U through a neural network, an estimated LAF sensor output value calculation section (712) to calculate the estimated value ΦHAT for an exhaust air-fuel ratio correlating with the Inert-EGR amount on the basis of the input vector U through the neural network, an LAF sensor (34) to detect the exhaust air-fuel ratio, and a nonlinear adaptive corrector (713) to calculate the adaptive input UVNS such that the estimated error EHAT between the detected value ΦACT from the LAF sensor (34) and the estimated output value ΦHAT of the LAF sensor (34) is minimized.

Abstract translation: 用于根据估计值控制工厂的受控变量的设备的控制器，允许减少由固体变化或植物老化引起的估计值的任何误差。 用于废气排放控制系统的控制器具有估计的惰性 - EGR值计算部（711），用于基于通过神经网络的输入向量U，估计的LAF传感器输出来计算用于惰性 - EGR量的估计值IEGRHAT 值计算部（712），基于通过神经网络的输入矢量U计算与惰性EGR量相关的排气空燃比的推定值ΦHAT，检测排气的LAF传感器（34） 和非线性自适应校正器（713），以计算自适应输入UVNS，使得来自LAF传感器（34）的检测值ΦACT与LAF传感器（34）的估计输出值ΦHAT之间的估计误差EHAT为 最小化。