公开(公告)号：US07162359B2

公开(公告)日：2007-01-09

申请号：US10481245

申请日：2002-06-19

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F02D41/14

CPC classification number: F02D41/1455 ,  F01N2430/06 ,  F02D41/1401 ,  F02D41/1441 ,  F02D41/1456 ,  F02D2041/141 ,  F02D2041/1416 ,  F02D2041/1423 ,  F02D2041/1433

Abstract: An apparatus for controlling the air-fuel ratio of an internal combustion engine to stably determine a highly reliable identified value of a parameter of a model of an exhaust system including a catalytic converter and to increase the purifying capability of the catalytic converter. An exhaust-side control unit 7a sequentially variably sets a dead time of an exhaust system E depending on the flow rate of an exhaust gas supplied to a catalytic converter 3, and sequentially identifies the value of a parameter of a model of the exhaust system E which has a dead time element of the set dead time. The exhaust-side control unit 7a sequentially calculates a target air-fuel ratio KCMD to converge the output of an O2 sensor 6 to a target value using the identified value of the parameter, and an engine-side control unit 7b manipulates the air-fuel ratio of the internal combustion engine 1 depending on the target air-fuel ratio KCMD. According to the algorithm of the process of identifying the parameter of the model of the exhaust system E, the value of a weighted parameter is variable set depending on the flow rate of the exhaust gas.

Abstract translation: 一种用于控制内燃机的空燃比以稳定地确定包括催化转化器的排气系统的模型的参数的可靠性高的识别值并提高催化转化器的净化能力的装置。 排气侧控制单元7a根据供给到催化转化器3的排气的流量顺序地变化地设定排气系统E的死区时间，并且顺序地识别排气系统的型号的参数的值 E具有设定死区时间的死区元素。 排气侧控制单元7a使用所识别的参数值，顺序地计算目标空燃比KCMD，以将O 2传感器6的输出收敛到目标值， 侧面控制单元7b根据目标空燃比KCMD来操纵内燃机1的空燃比。 根据识别排气系统E的模型参数的过程的算法，加权参数的值根据排气的流量而变化。

公开(公告)号：US20060266316A1

公开(公告)日：2006-11-30

申请号：US11433476

申请日：2006-05-15

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F01L1/34

CPC classification number: F02D41/0002 ,  F01L1/34 ,  F01L1/3442 ,  F01L13/0021 ,  F01L2800/00 ,  F02D13/0211 ,  F02D13/0219 ,  F02D41/1401 ,  F02D2041/001 ,  G05B13/02 ,  Y02T10/18 ,  Y02T10/42

Abstract: A control apparatus that is capable of maintaining both the control resolution and the control accuracy at respective high levels even when at least one of the nonlinearity and the frequency characteristic of a controlled object varies. A control apparatus 1 that control a cam phase Cain by a phase control input Ucain includes two controllers 102 and 103. The two-degree-of-freedom response-specifying controller 102 calculates a follow-up control input Rsld as a value for causing the cam phase to follow a target cam phase Cain_camd. The DSM controller 103 calculates a phase control input Ucain by modulating the follow-up control input Rsld, and in the calculation, the repetition period at which the phase control input Ucain is calculated is selected from two repetition periods ΔT1 and ΔT2 according to engine speed NE, a cam phase Cain, and a valve lift Liftin.

Abstract translation: 即使当受控对象的非线性和频率特性中的至少一个变化时，也能够将控制分辨率和控制精度保持在各自的高电平的控制装置。 通过相位控制输入Ucain控制凸轮相位Cain的控制装置1包括两个控制器102和103。 二自由度响应指定控制器102计算跟随控制输入Rsld作为使凸轮相位跟随目标凸轮相位Cain_camd的值。 DSM控制器103通过调制后续控制输入Rsld来计算相位控制输入Ucain，并且在计算中，根据发动机转速从两个重复周期DeltaT1和DeltaT2中选择计算相位控制输入Ucain的重复周期 NE，凸轮相位Cain和气门升程Liftin。

公开(公告)号：US07117725B2

公开(公告)日：2006-10-10

申请号：US11051464

申请日：2005-02-07

Applicant: Katsura Okubo ,  Koichiro Shinozaki ,  Yuji Yasui ,  Masahiro Sato ,  Keiichi Nagashima

Inventor： Katsura Okubo ,  Koichiro Shinozaki ,  Yuji Yasui ,  Masahiro Sato ,  Keiichi Nagashima

IPC: G01M15/00

CPC classification number: G01L23/225

Abstract: An apparatus for detecting an in-cylinder pressure of an engine is provided. The apparatus comprises an in-cylinder pressure sensor for outputting a signal indicating a change rate of an in-cylinder pressure and a control unit. The control unit is configured to correct the signal from the in-cylinder pressure sensor, integrate the corrected signal to determine the in-cylinder pressure, determine a change rate of a drift contained in the determined in-cylinder, and feedback the change rate of the drift so that the correction of the signal is made with the change rate of the drift. Since the output of the in-cylinder pressure sensor from which a drift has been removed is integrated, it is prevented that a drift appears in the in-cylinder pressure obtained by the integral. A resetting operation is not required so as to remove a drift.

Abstract translation: 提供一种用于检测发动机的缸内压力的装置。 该装置包括用于输出指示缸内压力的变化率和控制单元的信号的缸内压力传感器。 控制单元被配置为校正来自缸内压力传感器的信号，整合校正信号以确定缸内压力，确定包含在确定的缸内的漂移的变化率，并且反馈 漂移使得信号的校正是用漂移的变化率进行的。 由于已经从其移除了漂移的缸内压力传感器的输出被一体化，所以防止了通过积分获得的缸内压力中出现漂移。 不需要复位操作，以便去除漂移。

公开(公告)号：US07103466B2

公开(公告)日：2006-09-05

申请号：US10695486

申请日：2003-10-29

Applicant: Yuji Yasui ,  Akihiro Shinjo ,  Michihiko Matsumoto

Inventor： Yuji Yasui ,  Akihiro Shinjo ,  Michihiko Matsumoto

IPC: G06F7/00 ,  F02D41/14

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.

Abstract translation: 提出了一种用于预测进气歧管压力的方法和装置，以补偿大的滞后或大的时间延迟，而不产生预测值的过冲或不连续的行为。 该方法包括以下步骤：获得要预测的变量的值的差异和预测的变量之前的另一个变量的值的差。 该方法还包括用自适应滤波器滤除差异的步骤。 该方法还包括通过使用模糊推理的估计算法获得待预测变量值的预测差值的步骤。 该方法还包括以下步骤：将要预测的变量的值的预测差相加到要预测的变量的当前值，以获得要预测的变量的预测值。

公开(公告)号：US20060173604A1

公开(公告)日：2006-08-03

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

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：US20060142932A1

公开(公告)日：2006-06-29

申请号：US11316992

申请日：2005-12-27

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F01N11/00 ,  G05B13/04

CPC classification number: F02D41/024 ,  F01L1/352 ,  F01L13/0063 ,  F01L2001/0537 ,  F01N3/28 ,  F01N13/0097 ,  F01N2570/10 ,  F01N2570/14 ,  F02D13/0219 ,  F02D13/0226 ,  F02D15/02 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1446 ,  F02D2041/1433 ,  F02D2200/0802 ,  F02D2200/0804 ,  G01K7/42 ,  G01K2205/04 ,  H01M10/486 ,  H01M10/613 ,  H01M10/625 ,  H01M10/633 ,  H01M10/656 ,  Y02T10/18 ,  Y02T10/26

Abstract: In a temperature control system of a plant such as an engine exhaust system, there are provided a catalyst heat model calculating a temperature estimated value of the plant, a temperature sensor model inputting the calculated value to calculate an output estimated value of a temperature sensor, a temperature controller controlling the plant temperature based on the estimated value, and a model parameter corrector correcting the plant model parameter so as to minimize error between the temperature sensor output and the calculated output estimated value. With this, even in the case where the temperature sensor has a large response lag, the temperature estimated value can nevertheless be corrected with high accuracy, without, for example, causing severe overshooting.

Abstract translation: 在诸如发动机排气系统的设备的温度控制系统中，提供计算设备的温度估计值的催化剂热模型，输入计算值的温度传感器模型来计算温度传感器的输出估计值， 基于估计值控制工厂温度的温度控制器，以及校正工厂模型参数的模型参数校正器，以便最小化温度传感器输出和计算出的输出估计值之间的误差。 因此，即使在温度传感器具有大的响应滞后的情况下，也可以高精度地校正温度推定值，而不会造成严重的过冲。

公开(公告)号：US07059115B2

公开(公告)日：2006-06-13

申请号：US10339601

申请日：2003-01-10

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F01N3/00

CPC classification number: F02D41/1441 ,  F01N13/009 ,  F02D41/1403 ,  F02D41/1408 ,  F02D41/1456 ,  F02D41/1495 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/501 ,  F02D2200/703

Abstract: An air/fuel ratio control apparatus an internal combustion engine, and an engine control unit are provided for conducting perturbation control to maintain a satisfactory exhaust gas purification percentage irrespective of whether or not a catalyst is deteriorated. The air/fuel ratio control apparatus for an internal combustion engine includes an ECU, and a LAF sensor and an O2 sensor disposed at locations upstream and downstream of a first catalyst, respectively, in an exhaust pipe. The ECU sets a target air/fuel ratio for converging the output of the O2 sensor to a predetermined target value such that it fluctuates over a predetermined amplitude at a predetermined frequency higher when the output of the O2 sensor remains near a predetermined target value than when it is not near the predetermined target value. The ECU also controls an air/fuel ratio to match the output of the LAF sensor with the target air/fuel ratio KCMD.

Abstract translation: 提供一种空燃比控制装置和内燃机，以及发动机控制单元，用于进行扰动控制，以保持令人满意的废气净化百分比，而不管催化剂是否劣化。 用于内燃机的空燃比控制装置包括在排气管中分别设置在第一催化剂的上游和下游位置处的ECU以及LAF传感器和O 2传感器。 ECU设定用于将O 2传感器的输出收敛到预定目标值的目标空燃比，使得当O 2传感器的输出为高时，其以预定频率以预定的频率波动， 传感器保持在比预定目标值不接近预定目标值附近的预定目标值附近。 ECU还控制空燃比使LAF传感器的输出与目标空燃比KCMD相匹配。

公开(公告)号：US07058501B2

公开(公告)日：2006-06-06

申请号：US10947341

申请日：2004-09-23

Applicant: Yuji Yasui ,  Masahiro Sato

Inventor： Yuji Yasui ,  Masahiro Sato

IPC: F02D41/14 ,  G05B13/04

CPC classification number: F02D41/0235 ,  F02D41/1403 ,  F02D2041/1409 ,  F02D2041/1423 ,  F02D2041/1433 ,  F02D2041/1437

Abstract: A control apparatus for controlling an object that is modeled using at least one model parameter is provided. The control apparatus comprises an identifier, a controller and a modulator. The identifier identifies the model parameter. The controller is coupled to the identifier and uses the model parameter to determine a reference input so that an output of the object converges to a desired value. The modulator is coupled to the controller and applies any one of a delta-sigma modulation algorithm, a sigma-delta modulation algorithm and a delta modulation algorithm to the reference input to determine an input into the object. The model parameter is identified based on the output of the object and the reference input. Since the identifier determines the model parameter based on the reference input, the model parameters is prevented from vibrating.

Abstract translation: 提供了一种用于使用至少一个模型参数来控制被建模的对象的控制装置。 控制装置包括标识符，控制器和调制器。 标识符标识模型参数。 控制器耦合到标识符并使​​用模型参数来确定参考输入，使得对象的输出收敛到期望值。 调制器耦合到控制器，并将delta-sigma调制算法，Σ-Δ调制算法和Δ调制算法中的任何一个应用于参考输入以确定对象的输入。 基于对象的输出和参考输入来识别模型参数。 由于标识符基于参考输入确定模型参数，因此防止模型参数振动。

公开(公告)号：US07050864B2

公开(公告)日：2006-05-23

申请号：US10312108

申请日：2002-04-19

Applicant: Yuji Yasui ,  Yoshihisa Iwaki ,  Jun Takahasi

Inventor： Yuji Yasui ,  Yoshihisa Iwaki ,  Jun Takahasi

IPC: G05B13/02

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 (d θ) to a reference vector (θ base) of the model parameter. The updating vector (d θ) 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 (d θ) to the reference vector (θ base).

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（θbase）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）。 通过将校正的更新向量（dθ）加到参考矢量（θbase）来计算模型参数矢量（theta）。

公开(公告)号：US20060086177A1

公开(公告)日：2006-04-27

申请号：US11268729

申请日：2005-11-08

Applicant: Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki ,  Kosuke Higashitani

Inventor： Katsura Okubo ,  Yuji Yasui ,  Masahiro Sato ,  Koichiro Shinozaki ,  Kosuke Higashitani

IPC: G01L23/22

CPC classification number: G01L23/225

Abstract: An in-cylinder pressure sensor for outputting a signal corresponding to an internal cylinder pressure of an engine is provided. A first signal and a second signal are extracted from the output signal of the in-cylinder pressure sensor. The first signal has a frequency band corresponding to knocking of the engine. The second signal has a frequency band used for detecting a peak of the internal cylinder pressure. A knocking detection period is set based on the second signal. The first signal in the knocking detection period is examined to determine whether or not knocking has occurred.

Abstract translation: 提供了用于输出与发动机的内部气缸压力相对应的信号的缸内压力传感器。 从缸内压力传感器的输出信号中提取第一信号和第二信号。 第一信号具有对应于发动机爆震的频带。 第二信号具有用于检测内部气缸压力的峰值的频带。 基于第二信号设定爆震检测期间。 检查爆震检测期间的第一信号以确定是否发生了敲击。