Plant control apparatus
    251.
    发明授权
    Plant control apparatus 有权
    植物控制装置

    公开(公告)号:US08725393B2

    公开(公告)日:2014-05-13

    申请号:US12984103

    申请日:2011-01-04

    Abstract: A plant control apparatus includes a plant model and a control input determining device. The plant model estimates a control variable of a plant based on an input including a control parameter to adjust a first control variable of the plant. The control input determining device is configured to correct a temporary value of the control parameter so that a first control variable model value satisfies a predetermined constraint. The control input determining device is configured to determine a control input for the plant based on the temporary value of the control parameter that has been corrected. The first control variable model value is defined as an estimated value of the first control variable calculated by the plant model when the temporary value of the control parameter is input to the plant model.

    Abstract translation: 工厂控制装置包括工厂模型和控制输入确定装置。 植物模型基于包括控制参数的输入来估计植物的控制变量,以调整植物的第一控制变量。 控制输入​​确定装置被配置为校正控制参数的临时值,使得第一控制变量模型值满足预定约束。 控制输入​​确定装置被配置为基于已经被校正的控制参数的临时值来确定工厂的控制输入。 当控制参数的临时值输入到工厂模型时,第一个控制变量模型值被定义为由工厂模型计算的第一个控制变量的估计值。

    Exhaust gas purifying apparatus for internal combustion engine
    252.
    发明授权
    Exhaust gas purifying apparatus for internal combustion engine 有权
    内燃机用废气净化装置

    公开(公告)号:US08297047B2

    公开(公告)日:2012-10-30

    申请号:US12600401

    申请日:2009-01-19

    Abstract: An exhaust gas purifying apparatus for an internal combustion engine having a lean NOx catalyst in an exhaust system is provided. The lean NOx catalyst traps NOx in exhaust gases when the exhaust gases are in an oxidizing state, and discharges the trapped NOx when the exhaust gases are in an reducing state. In this apparatus, an estimated trapped NOx amount which is an estimated value of an amount of NOx trapped in the lean NOx catalyst, is calculated using a neural network. Engine operating parameters indicative of an operating condition of the engine are input, and the neural network outputs at least one control parameter which is relevant to the lean NOx catalyst. A reducing process of the NOx trapped in the lean NOx catalyst is performed according to the estimated trapped NOx amount.

    Abstract translation: 提供了一种在排气系统中具有贫NOx催化剂的内燃机的废气净化装置。 当废气处于氧化状态时,贫NOx催化剂捕集废气中的NOx,并且当废气处于还原状态时,排出被捕获的NOx。 在该装置中,使用神经网络计算作为捕集在贫NOx催化剂中的NOx的量的估计值的估计捕获的NOx量。 输入表示发动机的运转状况的发动机运转参数,神经网络输出与稀薄NOx催化剂有关的至少一个控制参数。 根据估计的捕获的NOx量进行捕集在贫NOx催化剂中的NOx的还原过程。

    CONTROL APPARATUS
    253.
    发明申请
    CONTROL APPARATUS 有权
    控制装置

    公开(公告)号:US20120116545A1

    公开(公告)日:2012-05-10

    申请号:US13289062

    申请日:2011-11-04

    Applicant: Yuji YASUI

    Inventor: Yuji YASUI

    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。

    Control system and method for internal combustion engine and engine control unit
    255.
    发明授权
    Control system and method for internal combustion engine and engine control unit 有权
    内燃机和发动机控制单元的控制系统和方法

    公开(公告)号:US08005605B2

    公开(公告)日:2011-08-23

    申请号:US12572227

    申请日:2009-10-01

    Applicant: Yuji Yasui

    Inventor: Yuji Yasui

    Abstract: A control system for an internal combustion engine, which is capable of properly controlling both the temperature of an exhaust system and the air-fuel ratio of exhaust gases even when the control range of the air-fuel ratio of a combustion air-fuel mixture is limited, thereby improving the reduction of exhaust emissions. In the control system, a demanded torque-calculating section calculates a demanded torque. A first controller calculates a target equivalent ratio such that a DeNOx catalyst temperature converges to a predetermined target temperature. A second controller calculates three feedback correction values such that an output value from an oxygen concentration sensor converges to a target output value. A third controller calculates a torque fuel injection amount for generating the combustion air-fuel mixture, a post fuel injection amount for supplying unburned fuel to a DeNOx catalyst, etc. based on five values.

    Abstract translation: 一种用于内燃机的控制系统,其能够适当地控制排气系统的温度和排气的空燃比,即使当燃烧空气 - 燃料混合物的空燃比的控制范围为 有限,从而改善废气排放的减少。 在控制系统中,要求的转矩计算部分计算要求转矩。 第一控制器计算目标当量比,使得DeNOx催化剂温度收敛到预定的目标温度。 第二控制器计算三个反馈校正值,使得来自氧浓度传感器的输出值收敛到目标输出值。 第三控制器基于五个值计算用于产生燃烧空气 - 燃料混合物的转矩燃料喷射量,用于向DeNOx催化剂供应未燃烧燃料的后燃料喷射量等。

    Exhaust emission control device for internal combustion engine
    256.
    发明授权
    Exhaust emission control device for internal combustion engine 有权
    内燃机废气排放控制装置

    公开(公告)号:US07997070B2

    公开(公告)日:2011-08-16

    申请号:US12134670

    申请日:2008-06-06

    Abstract: An exhaust emission control device for an internal combustion engine, capable of supplying a just enough amount of reducing agent to a selective reduction catalyst even when a NOx purification ratio of the catalyst is changed by various causes, thereby enabling a high NOx purification ratio and very low exhaust emissions to be maintained. An ECU calculates a filtered value based on a signal from an exhaust gas concentration sensor, calculates a moving average value of a product of the filtered value and a reference input, calculates a control input such that the moving average value becomes equal to 0, and adds a reference input to the control input to calculate an FB injection amount. The ECU calculates an FF injection amount with a predetermined feedforward control algorithm, and adds the FF injection amount to the FB injection amount, to thereby calculate a urea injection amount.

    Abstract translation: 即使在各种原因使催化剂的NOx净化率发生变化的情况下,能够向选择还原型催化剂供给足够量的还原剂的废气排放控制装置,能够实现高NOx净化率 低废气排放要维持。 ECU根据来自排气浓度传感器的信号计算滤波值,计算滤波值与基准输入的乘积的移动平均值,算出移动平均值为0的控制输入, 向控制输入添加参考输入以计算FB喷射量。 ECU使用预定的前馈控制算法计算FF喷射量,并将FF喷射量与FB喷射量相加,从而计算尿素喷射量。

    CONTROLLER
    257.
    发明申请
    CONTROLLER 有权
    控制器

    公开(公告)号:US20110106402A1

    公开(公告)日:2011-05-05

    申请号:US13000602

    申请日:2008-07-07

    CPC classification number: G05B13/048 F01N3/208

    Abstract: A controller capable of immediately and high accurately controlling a detected value to a desired value in a controlled object having a large delay characteristic is provided. The controller for controlling a plant comprises a predictor (511) for calculating a predicted value (PREDNTH3EXS) of the future of a control output value based on a provisional value (DGUREA—EXS) of a control input value including a periodic reference signal by using a plant model indicating the dynamic characteristics of the control output value from the control input value of the plant, an evaluation function value calculator (512) for calculating an evaluation function value (J) including the predicted value (PREDNH3EXS) of the future of the calculated control output value, an extreme value search optimizer (513) for calculating a provisional value (DGUREA—OPT) of such a control input value as that the evaluation function value (J) becomes the extreme value on the basis of a product (CR) of the calculated evaluation function value (J) and a periodic reference signal (SREF), and an adder (54) for calculating a control input value (GUREA) including the provisional value (DGUREA—OPT) of the calculated control input value.

    Abstract translation: 提供了一种能够在具有大的延迟特性的受控对象中立即高精度地将检测值控制为期望值的控制器。 用于控制植物,所述控制器包括用于根据一个控制输入值的临时值(DGUREA-EXS),其包括通过使用一个周期性参考信号的控制输出值的未来的预测值(PREDNTH3EXS)的预测(511) 植物模型表示从植物,评价函数值计算器(512),用于计算的评价函数值(J)的控制输入值的控制输出值的动态特性,包括的将来的预测值(PREDNH3EXS) 计算的控制输出值,一个极端的值搜索优化器(513),用于计算暂定值这样的控制输入值的(DGUREA-OPT)作为评价函数值(J)成为产品的基础上的极值(CR )所计算出的评价函数值(J)和周期性参考信号(SREF),和用于计算控制输入值(Gurea酒店)包括临时值相加的加法器(54)的(DGUREA 所计算出的控制输入值的OPT)。

    Electronic control system for controlling plant temperature
    258.
    发明授权
    Electronic control system for controlling plant temperature 失效
    控制厂房温度的电子控制系统

    公开(公告)号:US07881830B2

    公开(公告)日:2011-02-01

    申请号:US12081896

    申请日:2008-04-23

    Abstract: Nonlinear functions (table and map) of a temperature estimation model are corrected based on outputs from a temperature sensor. An electronic control system calculates, for a plant model constructed to calculate an estimated temperature value of the plant, an estimated temperature value using a correlation model between a first parameter regarding the plant and a second parameter regarding the plant model. This control system controls the temperature of the plant based on the calculated estimated temperature value of the plant. The control system also defines a plurality of functions (Wi) in a range of a plurality of the first parameters for the correlation model, calculates correction coefficients (Kli, Kci) that adjust the height of the plurality of functions based on the output of the temperature sensor and the calculated estimated temperature value of the plant, and corrects the correlation model by the plurality of functions (Wi) and correction coefficients (Kli, Kci).

    Abstract translation: 基于温度传感器的输出校正温度估计模型的非线性函数(表和映射)。 电子控制系统针对构造为计算工厂的估计温度值的工厂模型,使用关于工厂的第一参数和关于工厂模型的第二参数之间的相关模型来估计估计温度值。 该控制系统基于工厂的计算的估计温度值来控制设备的温度。 所述控制系统还在所述相关模型的多个所述第一参数的范围内定义多个功能(Wi),基于所述控制系统的输出来计算调整所述多个功能的高度的校正系数(Kli,Kci) 温度传感器和工厂的计算出的估计温度值,并通过多个函数(Wi)和校正系数(Kli,Kci)来校正相关模型。

    Control apparatus and method and control unit
    259.
    发明授权
    Control apparatus and method and control unit 有权
    控制装置及方法及控制单元

    公开(公告)号:US07813867B2

    公开(公告)日:2010-10-12

    申请号:US12314896

    申请日:2008-12-18

    Abstract: A control apparatus which can improve the accuracy of control of a controlled variable by a control input exhibiting a periodic fluctuating behavior. The control apparatus calculates an air-fuel ratio correction value DKCMD such that the output from an oxygen concentration sensor converges to a target output, and calculate a modulated value DKCMD_DSM by modulating DKCMD with an algorithm to which is applied a Δ Σ modulation algorithm. Further, the control apparatus calculates a reference air-fuel ratio KCMDBS according to an exhaust gas volume, calculates a model modification coefficient KTRQFF using a modification coefficient calculated such that DKCMD become equal to 0, calculates an adaptive reference air-fuel ratio KCMDADP by the equation of KCMDADP=KCMDBS×KTRQFF, and calculates a target air-fuel ratio KCMD by the equation of KCMD=KCMADP+DKCMD_DSM.

    Abstract translation: 一种控制装置,其可以通过呈现周期性波动行为的控制输入来提高控制变量的控制精度。 控制装置计算空气燃料比校正值DKCMD,使得氧浓度传感器的输出收敛到目标输出,并通过用应用了&Dgr的算法调制DKCMD来计算调制值DKCMD_DSM; &Sgr 调制算法。 此外,控制装置根据排气量计算参考空燃比KCMDBS,使用以DKCMD变为等于0计算出的修正系数来计算模型修正系数KTRQFF,通过下式计算自适应基准空燃比KCMDADP KCMDADP = KCMDBS×KTRQFF的公式,并且通过KCMD = KCMADP + DKCMD_DSM的公式计算目标空燃比KCMD。

    Air/fuel ratio control apparatus of an internal combustion engine
    260.
    发明授权
    Air/fuel ratio control apparatus of an internal combustion engine 有权
    内燃机的空燃比控制装置

    公开(公告)号:US07680580B2

    公开(公告)日:2010-03-16

    申请号:US11791278

    申请日:2005-12-01

    Abstract: Apparatus and method for air/fuel ratio control for smoothening variation of air/fuel ratio among a plurality of cylinders of an internal combustion engine including a sensor for measuring output of the internal combustion engine. A device calculates a correlation function of each cylinder by taking cross-correlation of values measured by the sensor and a reference signal for each cylinder. A device then calculates a smoothing target value which is common for all of the cylinders. Cylinder controllers produce control input to the respective cylinders such that the correlation function converges to the smoothing target value.

    Abstract translation: 一种用于使内燃机的多个气缸中的空气/燃料比的变化平滑的装置和方法,所述内燃机包括用于测量内燃机的输出的传感器。 设备通过将由传感器测量的值和每个气缸的参考信号相互相关来计算每个气缸的相关函数。 然后,设备计算对于所有气缸是共同的平滑目标值。 气缸控制器产生对相应气缸的控制输入,使得相关函数收敛到平滑目标值。

Patent Agency Ranking