公开(公告)号：US07204081B2

公开(公告)日：2007-04-17

申请号：US10743870

申请日：2003-12-24

Applicant: Yuji Yasui ,  Jun Iwamoto ,  Hidemi Ogihara

Inventor： Yuji Yasui ,  Jun Iwamoto ,  Hidemi Ogihara

IPC: F01N3/00

CPC classification number: F01N9/00 ,  F01N3/2066 ,  F01N3/36 ,  F01N13/009 ,  F01N2240/25 ,  F01N2240/30 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2610/146 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust gas purifying apparatus and method for an internal combustion engine, and an engine control unit are provided for appropriately determining the amount of reducing agent supplied to a NOx selective reduction catalyst to ensure good exhaust gas characteristics. The exhaust gas purifying apparatus comprises an ECU; a NOx selective reduction catalyst for purifying NOx in exhaust gases in an exhaust pipe; a NOx sensor disposed in the exhaust pipe at a location downstream of the NOx selective reduction catalyst for detecting a NOx concentration in exhaust gases; and an injector for supplying the NOx selective reduction catalyst with ammonia produced in an ammonia production unit. The ECU determines the amount of ammonia injected to the NOx selective reduction catalyst by the injector such that an estimate of the NOx concentration detected by the NOx sensor reaches a minimum value.

Abstract translation: 提供一种用于内燃机的排气净化装置和方法以及发动机控制单元，用于适当地确定供给至NOx选择还原催化剂的还原剂的量以确保良好的废气特性。 废气净化装置包括ECU; 用于净化排气管中废气中的NOx的NOx选择还原催化剂; NO x传感器，其设置在所述NOx选择还原催化剂的下游位置处的排气管中，用于检测废气中的NOx浓度; 以及用于向所述NOx选择还原催化剂供应在氨生产单元中产生的氨的喷射器。 ECU通过喷射器确定喷射到NOx选择还原催化剂的氨的量，使得由NOx传感器检测到的NOx浓度的估计达到最小值。

公开(公告)号：US20060243232A1

公开(公告)日：2006-11-02

申请号：US11367704

申请日：2006-03-06

Applicant: Kanako Shimojo ,  Yuji Yasui

Inventor： Kanako Shimojo ,  Yuji Yasui

IPC: F01L1/34

CPC classification number: F02D41/1401 ,  F01L1/053 ,  F01L13/0021 ,  G05B13/047

Abstract: A plant control includes determining a control input into the plant to cause a control output of the plant to converge to a desired value. A value of at least one parameter for adjusting a speed of change of the control output relative to change of the desired value is determined in accordance with a plant condition. The control input is determined based on the parameter having the value thus determined. The parameter includes a first parameter for changing a speed of change of the control input relative to change of the desired value. The parameter can also include a second parameter for changing the relative speed via a corrected desired value that is determined by correcting the desired value. The second parameter can further include a gradient parameter and a gradually-approaching characteristic parameter.

Abstract translation: 工厂控制包括确定到工厂的控制输入以使设备的控制输出收敛到期望值。 根据工厂条件确定用于调节控制输出相对于期望值的变化的变化速度的至少一个参数的值。 基于具有如此确定的值的参数来确定控制输入。 该参数包括用于改变控制输入相对于期望值的变化的变化速度的第一参数。 该参数还可以包括用于通过校正期望值确定的校正的期望值来改变相对速度的第二参数。 第二参数还可以包括梯度参数和逐渐接近的特征参数。

公开(公告)号：US07071638B2

公开(公告)日：2006-07-04

申请号：US10743464

申请日：2003-12-23

Applicant: Yuji Yasui ,  Kanako Shimojo ,  Eijiro Shimabukuro

Inventor： Yuji Yasui ,  Kanako Shimojo ,  Eijiro Shimabukuro

IPC: H02K41/00

CPC classification number: G05B13/0205 ,  F16H59/68 ,  F16H61/0403 ,  F16H61/28 ,  F16H2059/6807 ,  F16H2061/2823 ,  G05B2219/39341 ,  G05B2219/42094 ,  G05B2219/42123 ,  G05B2219/42343 ,  G05B2219/42347 ,  G05B2219/42352 ,  G05B2219/49356

Abstract: An actuator control apparatus is provided, capable of causing a state value which changes according to the action of an actuator to match a prescribed target value. A synchronizing mechanism is modeled as the collision of an inertial system object and an elastic system object, and taking as a state amount the deviation between the actual position (Psc) of a coupling sleeve and the target position (Psc_cmd), a computation coefficient (VPOLE) of a switching function used in sliding mode control which takes the state amount as a variable is, in a first process until the coupling sleeve makes contact with a synchronizer ring, set according to the actual position (Psc) of the coupling sleeve, and in a process until the coupling sleeve engages a synchronized gear, is set such that the pressing force of the coupling sleeve matches a target pressing force.

Abstract translation: 提供了一种致动器控制装置，其能够使根据致动器的动作而变化的状态值与规定的目标值相匹配。 同步机构被建模为惯性系统对象和弹性系统对象的碰撞，并且以状态量作为耦合套筒的实际位置（Psc）与目标位置（Psc_cmd）之间的偏差，计算系数（ 在作为变量的状态量的滑动模式控制中使用的切换功能的开关功能在直到联接套筒与同步器环接触的第一过程中，根据联接套筒的实际位置（Psc）设定， 并且在直到联接套筒接合同步齿轮的过程中，被设定为使得联接套筒的按压力与目标按压力匹配。

公开(公告)号：US07047728B2

公开(公告)日：2006-05-23

申请号：US10636661

申请日：2003-08-08

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F01N3/00

CPC classification number: F02D41/1473 ,  F02D41/1446 ,  F02D41/1454 ,  F02D41/1494

Abstract: A target value Vtgt for an output Vout of an O2 sensor 8 (an exhaust gas sensor) disposed downstream of a catalytic converter 4 is set variably depending on a temperature TO2 of an active element 10 of the O2 sensor 8 by a target value setting unit 18, and the air-fuel ratio of an exhaust gas is controlled by an air-fuel ratio control unit 17 to converge the output Vout to the target value Vtgt. An exhaust gas temperature Tgd is estimated by an exhaust temperature observer 19, and the temperature TO2 of the active element 10 is sequentially estimated by an element temperature observer 20 using the estimated value of the exhaust gas temperature Tgd. A heater 13 of the O2 sensor 8 is controlled by a heater controller 22 to keep the temperature TO2 of the active element 10 at a predetermined target value R. The air-fuel ratio is thus controlled to maintain a desired exhaust gas purifying capability of the catalytic converter irrespective of the temperature of the active element of the exhaust gas sensor.

Abstract translation: 设置在催化转化器4下游的O 2传感器8（排气传感器）的输出Vout的目标值Vtgt根据温度T O2可变地设定， 由目标值设定单元18输出O 2传感器8的有源元件10，并且由空燃比控制单元17控制排气的空燃比，以使 输出Vout为目标值Vtgt。 废气温度Tgd由废气温度观测器19估计，并且通过元件温度观测器20使用排气温度Tgd的估计值来依次估计有源元件10的温度T O2 。 O 2传感器8的加热器13由加热器控制器22控制，以将有源元件10的温度T O2保持在预定的目标值R。空气 因此控制燃料比以维持催化转化器的期望的废气净化能力，而与废气传感器的有源元件的温度无关。

公开(公告)号：US20060030999A1

公开(公告)日：2006-02-09

申请号：US11194441

申请日：2005-08-02

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

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

IPC: G06F19/00

CPC classification number: G01L3/245 ,  G01M15/044 ,  G01M15/08

Abstract: A method of calculating the amount of work done by an internal combustion engine, which is capable of calculating a work amount parameter indicative of the amount of work done with accuracy while compensating for a phase delay in in-cylinder pressure data caused e.g. by a filtering process performed thereon. The method calculates the work amount parameter Pmi indicative of the amount of work done by the engine 3 including a combustion chamber 3b, as follows: Pressure in the combustion chamber 3b is detected to obtain in-cylinder pressure data P indicative of the detected pressure. Volume data V indicative of a state of change in volume of the combustion chamber 3b is obtained. The obtained volume data V is subjected to a first predetermined filtering process. The work amount parameter Pmi is calculated based on the detected in-cylinder pressure data P, and the volume data filtered value VF obtained by subjecting the volume data V to the first filtering process.

Abstract translation: 一种计算内燃机完成的工作量的方法，其能够在补偿例如气缸内压力数据的相位延迟的补偿的同时，计算表示精度完成量的工作量参数。 通过其上执行的过滤处理。 该方法计算表示包括燃烧室3b的发动机3的作业量的作业量参数P MIN，其如下：检测燃烧室3b中的压力， 指示检测到的压力的气缸压力数据P. 获得表示燃烧室3b的体积变化状态的体积数据V. 所获得的体积数据V经受第一预定过滤处理。 基于检测到的缸内压力数据P和通过对体积数据V进行第一过滤处理而获得的体积数据过滤值VF来计算工作量参数P＆lt; mi＆gt;。

公开(公告)号：US20060027197A1

公开(公告)日：2006-02-09

申请号：US11197404

申请日：2005-08-05

Applicant: Hiroshi Tagami ,  Yuji Yasui ,  Mitsunobu Saito ,  Kosuke Higashitani

Inventor： Hiroshi Tagami ,  Yuji Yasui ,  Mitsunobu Saito ,  Kosuke Higashitani

IPC: F01L1/34

CPC classification number: F02D13/0219 ,  F01L1/022 ,  F01L1/024 ,  F01L1/352 ,  F01L2800/00 ,  F01L2820/041 ,  F01L2820/042 ,  F02D13/00 ,  F02D41/1403 ,  F02D2041/001 ,  F02D2041/1433 ,  Y02T10/18

Abstract: A cam phase control system for an internal combustion engine, which is capable of suppressing deviation of the cam phase which is caused by a sudden change in the engine speed due to the structure of a variable cam phase mechanism, thereby securing excellent controllability and high control accuracy. The coma phase control system of the engine comprise an ECU and an electromagnetic variable cam phase mechanism. The ECU calculates an SLD control input for causing the cam phase to converge to a target cam phase by equations (1) to (6), calculates a gain-adjusted value by modulating the SLD control input by equations (20) to (25), calculates a correction value according to the engine speed NE, and calculates a control input for controlling the variable cam phase mechanism by correcting the gain-adjusted value by the correction value.

Abstract translation: 一种用于内燃机的凸轮相位控制系统，其能够抑制由于可变凸轮相位机构的结构而由发动机转速的突然变化引起的凸轮相位的偏差，从而确保优异的可控性和高控制 准确性。 发动机的昏迷相位控制系统包括ECU和电磁可变凸轮相位机构。 ECU计算用于使凸轮相位通过等式（1）至（6）收敛到目标凸轮相位的SLD控制输入，通过由等式（20）至（25）调制SLD控制输入来计算增益调整值， 根据发动机转速NE计算校正值，并通过校正增益调整值来计算用于控制可变凸轮相位机构的控制输入。

公开(公告)号：US20050252497A1

公开(公告)日：2005-11-17

申请号：US10511540

申请日：2003-03-28

Applicant: Yuji Yasui ,  Yoshihisa Iwaki

Inventor： Yuji Yasui ,  Yoshihisa Iwaki

IPC: G01N27/409 ,  F02D41/14 ,  F02D45/00 ,  G01K7/42 ,  F02D41/00 ,  G01N7/00

CPC classification number: F02D41/1454 ,  G01K7/42

Abstract: A sensor temperature control means (18) for controlling the temperature of an active element (10) of an exhaust gas sensor (O2 sensor) (8) disposed in an exhaust passage (3) estimates the temperatures of the active element (10) and a heater (13) based on an element temperature model which is representative of a temperature change of the active element due to heat transfer between the active element (10) and the heater (13) which heats the active element and heat transfer between the active element (10) and an exhaust gas, and a heater temperature model which is representative of a temperature change of the heater due to heat transfer between the active element (10) and the heater (13) and the supply of electric power to the heater (13), and controls the heater (13) to equalize the temperature of the active element (10) or the heater (13) with a predetermined target temperature using estimated values of the temperatures. It is possible to accurately estimate the temperature of the active element (10) of the exhaust gas sensor (8) or the heater (13), and control the temperature of the active element (10) of the exhaust gas sensor (8) stably at a desired temperature using an estimated value of the temperature.

Abstract translation: 用于控制设置在排气通道（3）中的排气传感器（O 2传感器）（8）的有源元件（10）的温度的传感器温度控制装置（18）估计温度 的有源元件（10）和加热器（13），其基于元件温度模型，其代表由于有源元件（10）和加热器（13）之间的热传递而导致的有源元件的温度变化， 有源元件（10）和排气之间的有源元件和热传递，以及代表加热器由于有源元件（10）和加热器（13）之间的传热引起的温度变化的加热器温度模型，以及 向加热器（13）供应电力，并且使用估计的温度值来控制加热器（13）以预定的目标温度来均衡有源元件（10）或加热器（13）的温度。 可以精确地估计排气传感器（8）或加热器（13）的有源元件（10）的温度，并且可以稳定地控制排气传感器（8）的有源元件（10）的温度 在所需温度下使用估计的温度值。

公开(公告)号：US20050203642A1

公开(公告)日：2005-09-15

申请号：US11050646

申请日：2005-02-04

Applicant: Yuji Yasui

Inventor： Yuji Yasui

IPC: F02D35/00 ,  F02D41/14 ,  G05B13/02 ,  G05B19/42 ,  G06F19/00

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：US06920751B2

公开(公告)日：2005-07-26

申请号：US10437457

申请日：2003-05-14

Applicant: Yuji Yasui ,  Hiroshi Kitagawa

Inventor： Yuji Yasui ,  Hiroshi Kitagawa

IPC: F02D45/00 ,  F01N3/00 ,  F01N3/20 ,  F02D41/14 ,  F02D41/22 ,  G01N27/417

CPC classification number: F02D41/1495 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1479 ,  F02D2041/1432 ,  F02D2041/288 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/501 ,  G01N27/4175

Abstract: An apparatus for detecting a failure of an exhaust gas sensor disposed downstream of a catalyst converter in an exhaust manifold is provided. The apparatus comprises a control unit. The control unit determines a ratio between an amplitude value of a first output of the exhaust gas sensor and an amplitude value of a second output of an air-fuel ratio sensor. The air fuel ratio sensor disposed upstream of the catalyst converter. The control unit detects a failure of the exhaust gas sensor based on the ratio. In one embodiment, a statistical process using a successive least squares method is applied to the ratio. The control unit detects a failure of the exhaust gas sensor based on the statistically processed ratio. In another embodiment, the statistical process is applied to both the output of the exhaust gas sensor and the output of the air-fuel ratio sensor. The control unit detects a failure of the exhaust gas sensor based on a ratio between the statistically processed outputs of the exhaust gas sensor and the air-fuel ratio sensor.

Abstract translation: 提供一种用于检测设置在排气歧管中的催化剂转化器下游的排气传感器的故障的装置。 该装置包括控制单元。 控制单元确定排气传感器的第一输出的振幅值和空燃比传感器的第二输出的振幅值之间的比率。 设置在催化剂转化器上游的空燃比传感器。 控制单元基于该比例来检测废气传感器的故障。 在一个实施例中，使用连续最小二乘法的统计过程被应用于该比率。 控制单元基于统计处理的比例来检测废气传感器的故障。 在另一个实施例中，将统计过程应用于排气传感器的输出和空燃比传感器的输出。 控制单元基于废气传感器的统计处理输出与空燃比传感器之间的比率来检测废气传感器的故障。

公开(公告)号：US06820603B2

公开(公告)日：2004-11-23

申请号：US10771323

申请日：2004-02-05

Applicant: Yuji Yasui ,  Jun Iwamoto ,  Hitoshi Takahashi ,  Hidemi Ogihara

Inventor： Yuji Yasui ,  Jun Iwamoto ,  Hitoshi Takahashi ,  Hidemi Ogihara

IPC: F02D4100

CPC classification number: F02D11/105 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1456 ,  F02D2041/0017 ,  F02D2200/0414 ,  F02D2200/602 ,  F02D2200/703 ,  F02D2250/18 ,  F02M25/00 ,  Y02T10/22

Abstract: There is provided a control system for an internal combustion engine, which is capable of meeting a driver's demand of torque, and achieving high combustion efficiency and high emission-reducing performance by a three-way catalyst in lean-burn operation in a compatible manner. The control system sets a control amount indicative of either an oxygen mass supplied to a combustion chamber or a fuel injection amount such that oxygen concentration in exhaust gases becomes equal to a value corresponding to stoichiometric combustion. A target value corresponding to a demanded torque is set based on detected engine operating conditions. A degree of opening of a main throttle valve and a degree of opening of a sub-throttle valve in a passage by passing an intake passage equipped with a nitrogen-enriching device are controlled such that the control amount becomes equal to the set target value.

Abstract translation: 提供了一种用于内燃机的控制系统，其能够满足驾驶员的扭矩需求，并且以兼容的方式在稀燃操作中通过三元催化剂实现高燃烧效率和高排放减少性能。 控制系统设定表示供给到燃烧室的氧气质量或燃料喷射量的控制量，使得废气中的氧浓度变得等于对应于化学计量燃烧的值。 基于检测到的发动机工作条件来设定与要求转矩对应的目标值。 控制通过配备有氮富集装置的进气通道的主节流阀的开度和通道中的副节流阀的开度，使得控制量变得等于设定的目标值。