公开(公告)号：US07231265B2

公开(公告)日：2007-06-12

申请号：US10349538

申请日：2003-01-22

Applicant: Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

Inventor： Yuji Yasui ,  Yoshihisa Iwaki ,  Eiji Hashimoto

IPC: G05B13/02 ,  F01N3/00 ,  G01N7/00 ,  G01N33/497

CPC classification number: F02D41/1403 ,  G05B13/047 ,  G05B21/02

Abstract: A control system for a plant is disclosed. The control system includes a controller which controls 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 period which is longer than a control period 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。 该控制系统包括控制器，该控制器基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周期的间隔被采样。 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：US07191589B2

公开(公告)日：2007-03-20

申请号：US10859540

申请日：2004-06-03

Applicant: Yuji Yasui ,  Akiyuki Yonekawa

Inventor： Yuji Yasui ,  Akiyuki Yonekawa

IPC: F01N3/00 ,  F01L1/34

CPC classification number: F02D13/0211 ,  F01L1/08 ,  F01L1/18 ,  F01L1/3442 ,  F01L13/0047 ,  F01L2001/34483 ,  F01L2201/00 ,  F01L2800/00 ,  F01L2820/02 ,  F02D13/023 ,  F02D13/0246 ,  F02D31/002 ,  F02D41/0002 ,  F02D41/0255 ,  F02D41/062 ,  F02D41/1403 ,  F02D2041/001 ,  F02D2041/1416 ,  F02D2200/0402 ,  Y02T10/18 ,  Y02T10/26 ,  Y02T10/42

Abstract: A control system for an internal combustion engine, which is capable of reducing exhaust emissions during and after the start of the engine. A control system is capable of changing the valve-closing timing of intake valves relative to the valve-opening timing thereof as desired using a variable intake valve actuation assembly. The control system includes an ECU. The ECU sets a target auxiliary intake cam phase to a start value that sets the valve-closing timing of the intake valves to retarded-closing timing, during starting of the engine, and to a catalyst warmup value that sets the same to timing closer to timing in the Otto cycle operation, during catalyst warmup control after the start of the engine.

Abstract translation: 一种用于内燃机的控制系统，其能够在发动机起动期间和之后减少废气排放。 控制系统能够使用可变进气门致动组件根据需要改变进气门相对于其打开正时的阀关闭正时。 控制系统包括ECU。 ECU将目标辅助进气凸轮相位设定为起动值，该起动值将起动时的进气门的关闭正时设定为延迟关闭正时，并且将发动机起动时的催化剂预热值设定为更接近 在奥托循环运行时，在发动机起动后的催化剂预热控制期间。

公开(公告)号：US07158875B2

公开(公告)日：2007-01-02

申请号：US11316984

申请日：2005-12-27

Applicant: Yuji Yasui ,  Masahiro Sato

Inventor： Yuji Yasui ,  Masahiro Sato

IPC: G01M15/11 ,  F02D45/00

CPC classification number: F02D41/1497 ,  F02D2041/288 ,  F02D2200/1015 ,  G01M15/11

Abstract: In a misfire detection system for an internal combustion engine, a product is calculated at every predetermined crank angle by multiplying a value retrieved from a periodic function defined to model torque generation of individual cylinders synchronously with each combustion cycle, by a detected crank angle velocity, and the product is integrated over a predetermined interval to calculate an integral. The integral is then compared with a predetermined value and is detected whether misfire has occurred in one of the individual cylinders, thereby enabling to detect misfire even when misfire occurs successively in a multiple cylinder engine, identify the misfiring cylinders with good accuracy.

Abstract translation: 在用于内燃机的失火检测系统中，通过将从每个燃烧循环同步的各个气缸的模型转矩产生定义的周期函数中检索到的值乘以检测到的曲柄角速度，以每个预定的曲柄角计算乘积， 并且产品在预定间隔内积分以计算积分。 然后将积分与预定值进行比较，并且检测在各个气缸中的一个中是否发生失火，从而即使在多缸发动机中连续发生失火也能够检测失火，以高精度识别失火气缸。

公开(公告)号：US07158874B2

公开(公告)日：2007-01-02

申请号：US11329026

申请日：2006-01-11

Applicant: Yuji Yasui ,  Koichiro Shinozaki

Inventor： Yuji Yasui ,  Koichiro Shinozaki

IPC: F02D41/14 ,  F02D45/00 ,  G05B13/04 ,  G06F19/00

CPC classification number: G05B13/047 ,  F02D41/3845 ,  F02D2041/1416 ,  G05B5/01 ,  G05B21/02

Abstract: A controller which is capable of maintaining stability of a control system even if the dynamic characteristic of a controlled object temporarily changes sharply in the case where a controlled object model is used. An ECU of the controller calculates a first disturbance estimate by carrying out a low-pass filtering process and a rate limiting process on a first estimation error as the difference between a fuel pressure estimate calculated with an estimation algorithm and a fuel pressure. Then, the ECU calculates a second disturbance estimate based on a second estimation error as the difference between the first estimation error and the first disturbance estimate, with a predetermined disturbance estimation algorithm. Further, the ECU calculates a fuel pressure control input based on the fuel pressure and the first and second disturbance estimates, with a predetermined control algorithm.

Abstract translation: 即使在受控对象模型被使用的情况下，即使控制对象的动态特性临时变化，也能够保持控制系统的稳定性的控制器。 控制器的ECU通过对第一估计误差执行低通滤波处理和速率限制处理来计算第一干扰估计，作为使用估计算法计算的燃料压力估计与燃料压力之差。 然后，ECU利用预定的扰动估计算法，将第二估计误差作为第一估计误差和第一干扰估计之差来计算第二干扰估计。 此外，ECU使用预定的控制算法，计算基于燃料压力和第一和第二干扰估计的燃料压力控制输入。

公开(公告)号：US20060259228A1

公开(公告)日：2006-11-16

申请号：US11489508

申请日：2006-07-20

Applicant: Yuji Yasui ,  Akihiro Shinjo ,  Michihiko Matsumoto

Inventor： Yuji Yasui ,  Akihiro Shinjo ,  Michihiko Matsumoto

IPC: G06F17/00 ,  G06F15/00

CPC classification number: G05B13/0275 ,  F02D41/1404 ,  F02D2200/0402 ,  F02D2200/0408

Abstract: A method and an apparatus for predicting intake manifold pressure are presented, to compensate for a large lag or a large time delay without producing an overshot or discontinuous behaviors of a predicted value. The method comprises the step of obtaining a difference of values of a variable to be predicted and a difference of values of another variable ahead of the variable to be predicted. The method further comprises the step of filtering the differences with adaptive filters. The method further comprises the step of obtaining a predicted difference of values of the variable to be predicted, through algorithm of estimation with fuzzy reasoning. The method further comprises the step of adding the predicted difference of values of the variable to be predicted, to a current value of the variable to be predicted, to obtain a predicted value of the variable to be predicted.

公开(公告)号：US07133763B2

公开(公告)日：2006-11-07

申请号：US11050646

申请日：2005-02-04

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: G05D1/00 ,  B60T7/12 ,  G06F7/00 ,  G06F17/00

CPC classification number: F02D41/1401 ,  F01L1/3442 ,  F01L2001/3443 ,  F01L2800/05 ,  F02D13/0207 ,  F02D35/0007 ,  F02D41/0002 ,  F02D41/1403 ,  F02D2041/001 ,  Y10T137/2278

Abstract: The invention provides a control apparatus comprising a controller for determining a manipulated variable for manipulating a controlled object so that an output of the controlled object converges to a desired value and a modulator for modulating the manipulated variable by using one of a delta-sigma modulation algorithm, a sigma-delta modulation algorithm and a delta modulation algorithm to generate a modulated signal to be applied to the controlled object. The modulator generates the modulated signal so that a center value of an amplitude of the modulated signal follows a change of the manipulated variable. Thus, the modulated signal in which the manipulated variable is reflected without any loss can be generated even when the manipulated variable changes.

Abstract translation: 本发明提供了一种控制装置，其包括控制器，用于确定用于操纵受控对象的操纵变量，使得受控对象的输出收敛到期望值;以及调制器，用于通过使用Δ-Σ调制算法 ，Σ-Δ调制算法和Δ调制算法，以产生要施加到受控对象的调制信号。 调制器产生调制信号，使得调制信号的幅度的中心值跟随操纵变量的变化。 因此，即使当操作变量改变时，也可以产生其中操纵变量被反射而没有任何损失的调制信号。

公开(公告)号：US07124013B2

公开(公告)日：2006-10-17

申请号：US10366670

申请日：2003-02-14

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: B60T7/12

CPC classification number: G05B13/047 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1479 ,  F02D41/2454 ,  F02D41/2477 ,  F02D2041/1415 ,  F02D2041/1433 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/703 ,  G05B13/042

Abstract: There are provided a control device, a control method, a control unit, and an engine control unit, which are capable of controlling a controlled object with relatively large phase delay and dead time, while attaining elimination of lag in control timing between the input and output of the controlled object and improvement of control accuracy at the same time. A state predictor calculates a deviation (output deviation) between an output from an oxygen concentration sensor and a predetermined target value at a predetermined deviation calculation period. Then, a DSM controller calculates a target air-fuel ratio for converging the output from the oxygen concentration sensor to the predetermined target value, according to the calculated deviation, based on any one of a Δ modulation algorithm, a ΔΣ modulation algorithm, and a ΣΔ modulation algorithm at a predetermined calculation period shorter than the predetermined deviation calculation period.

公开(公告)号：US20060142926A1

公开(公告)日：2006-06-29

申请号：US11316984

申请日：2005-12-27

Applicant: Yuji Yasui ,  Masahiro Sato

Inventor： Yuji Yasui ,  Masahiro Sato

IPC: G01M15/11

CPC classification number: F02D41/1497 ,  F02D2041/288 ,  F02D2200/1015 ,  G01M15/11

Abstract: In a misfire detection system for an internal combustion engine, a product is calculated at every predetermined crank angle by multiplying a value retrieved from a periodic function defined to model torque generation of individual cylinders synchronously with each combustion cycle, by a detected crank angle velocity, and the product is integrated over a predetermined interval to calculate an integral. The integral is then compared with a predetermined value and is detected whether misfire has occurred in one of the individual cylinders, thereby enabling to detect misfire even when misfire occurs successively in a multiple cylinder engine, identify the misfiring cylinders with good accuracy.

Abstract translation: 在用于内燃机的失火检测系统中，通过将从每个燃烧循环同步的各个气缸的模型转矩产生定义的周期函数中检索到的值乘以检测到的曲柄角速度，以每个预定的曲柄角计算乘积， 并且产品在预定间隔内积分以计算积分。 然后将积分与预定值进行比较，并且检测在各个气缸中的一个中是否发生失火，从而即使在多缸发动机中连续发生失火也能够检测失火，以高精度识别失火气缸。

公开(公告)号：US20060129307A1

公开(公告)日：2006-06-15

申请号：US11284145

申请日：2005-11-22

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: G01M15/11

CPC classification number: G01M15/08 ,  G01M15/11

Abstract: Misfire of an engine is detected by extracting a pressure component of combustion from an output of a pressure sensor disposed in a cylinder. An engine misfire detection apparatus obtains a combustion parameter Cr that is a correlation between a reference signal Fc synchronous with the combustion cycle of the engine and cylinder pressure Pc obtained from an output of a pressure sensor disposed in the cylinder. The apparatus detects a misfire of the engine based on the combustion parameter. A misfire can be accurately detected even under a low load condition because the combustion parameter indicating the combustion component is extracted from the cylinder pressure as a correlation between the reference signal synchronous with the combustion cycle of the engine and the cylinder pressure obtained from the sensor output. The combustion parameter is a sum of products of discrete values Pc(i) of the cylinder pressure which are obtained at a predetermined rate and discrete values Fc(i) of the reference signal.

Abstract translation: 通过从设置在气缸中的压力传感器的输出提取燃烧的压力分量来检测发动机的失火。 发动机失火检测装置获得作为与发动机的燃烧循环同步的参考信号Fc与从气缸中设置的压力传感器的输出获得的气缸压力Pc之间的相关性的燃烧参数Cr。 该装置基于燃烧参数来检测发动机的失火。 即使在低负载条件下也可以准确地检测到失火，因为表示燃烧成分的燃烧参数是从气缸压力中提取的，作为与发动机的燃烧循环同步的参考信号与从传感器输出获得的气缸压力之间的相关性 。 燃烧参数是以预定速率获得的气缸压力的离散值Pc（i）和参考信号的离散值Fc（i）的乘积之和。

公开(公告)号：US20060129250A1

公开(公告)日：2006-06-15

申请号：US11345994

申请日：2006-02-02

Applicant: Yuji Yasui ,  Yoshihisa Iwaki ,  Jun Takahashi

Inventor： Yuji Yasui ,  Yoshihisa Iwaki ,  Jun Takahashi

IPC: G05B11/01

CPC classification number: G05B13/042 ,  F02D35/0007 ,  F02D41/1403 ,  F02D41/1454 ,  F02D41/40 ,  F02D2041/1423 ,  F02D2041/143 ,  G05B13/047 ,  G05B13/048

Abstract: A control system for a plant is provided. This control system can control the plant more stably, when the model parameters of the controlled object model which are obtained by modeling the plant, which is a controlled object, are identified and the sliding mode control is performed using the identified model parameters. The model parameter identifier (22) calculates a model parameter vector (θ) by adding an updating vector (dθ) to a reference vector (θbase) of the model parameter. The updating vector (dθ) is corrected by multiplying a past value of at least one element of the updating vector by a predetermined value which is greater than “0” and less than “1”. The model parameter vector (θ) is calculated by adding the corrected updating vector (dθ) to the reference vector (θbase).

Abstract translation: 提供了一种植物控制系统。 当通过对作为受控对象的设备进行建模获得的受控对象模型的模型参数被识别并且使用所识别的模型参数来执行滑动模式控制时，该控制系统可以更稳定地控制设备。 模型参数标识符（22）通过将更新向量（dθ）添加到模型参数的参考向量（tabase）来计算模型参数向量（θ）。 通过将更新向量的至少一个元素的过去值乘以大于“0”且小于“1”的预定值来校正更新向量（dθ）。 通过将校正后的更新向量（dθ）加到参考矢量（the tabase）来计算模型参数矢量（theta）。