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    Feedback control system using adaptive control
    31.
    发明授权
    Feedback control system using adaptive control 失效
    反馈控制系统采用自适应控制

    公开(公告)号：US5692485A

    公开(公告)日：1997-12-02

    申请号：US401430

    申请日：1995-03-09

    申请人： Hidetaka Maki ,  Yusuke Hasegawa ,  Isao Komoriya ,  Yoichi Nishimura

    发明人： Hidetaka Maki ,  Yusuke Hasegawa ,  Isao Komoriya ,  Yoichi Nishimura

    IPC分类号： F02D45/00 ,  F02D41/04 ,  F02D41/14 ,  G05B13/02

    CPC分类号： F02D41/1473 ,  F02D41/047 ,  F02D41/1402 ,  G05B13/024 ,  F02D2041/1415 ,  F02D2041/1433

    摘要： An air/fuel ratio feedback control system with the adaptive controller. The adaptive controller has a system parameter estimator which identifies system parameters such that the error between the desired value and the controlled variable outputted from the plant decreases to zero. In the system, a basic fuel injection amount is determined at a feedforward system. The adaptive controller is placed outside of the basic fuel injection amount determining system and receives the desired value (air/fuel ratio) and the controlled value (detected air/fuel ratio) using the system parameters etc. The calculated feedback coefficient is multiplied to the basic fuel injection amount to determine a final injection amount to be supplied to the plant (engine). Variables necessary for the system parameter calculation are limited their change of range so as to make the controller to be realized on a low performance computer with a small word length.

    摘要翻译： 具有自适应控制器的空燃比反馈控制系统。 自适应控制器具有系统参数估计器，其识别系统参数，使得期望值与从工厂输出的受控变量之间的误差降至零。 在该系统中，在前馈系统中确定基本的燃料喷射量。 自适应控制器设置在基本燃料喷射量确定系统的外部，并使用系统参数等接收期望值（空燃比）和受控值（检测到的空气/燃料比）。将计算出的反馈系数乘以 基本燃料喷射量以确定要供应给设备（发动机）的最终喷射量。 系统参数计算所需的变量限制了其范围的变化，以使控制器在具有较小字长的低性能计算机上实现。

    Control system for plants
    32.
    发明授权
    Control system for plants 有权
    植物控制系统

    公开(公告)号：US6026793A

    公开(公告)日：2000-02-22

    申请号：US143542

    申请日：1998-08-28

    申请人： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Shusuke Akazaki ,  Hiroshi Kitagawa

    发明人： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Shusuke Akazaki ,  Hiroshi Kitagawa

    IPC分类号： F02D41/14 ,  G05B13/02 ,  G05B13/04 ,  G05D11/13 ,  F02M25/00

    CPC分类号： G05B13/042 ,  F02D41/1402 ,  F02D41/1456 ,  F02D41/2454 ,  F02D41/2477 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/143 ,  F02D2041/1433 ,  F02D41/2483

    摘要： A control system for a plant includes a sensor for detecting an output from the plant, an adaptive controller for controlling a manipulated variable applied to control of the plant in a manner such that an output from the sensor becomes equal to a desired value, and an adaptive parameter vector-adjusting mechanism for adjusting an adaptive parameter vector used by the adaptive controller. The adaptive parameter vector-adjusting mechanism is constructed such that an updating component for updating the adaptive parameter vector is added to an initial value of the adaptive parameter vector, and updates the adaptive parameter vector by multiplying at least part of preceding values of the updating component by a predetermined coefficient which is larger than 0 but smaller than 1.

    摘要翻译： 一种用于设备的控制系统包括用于检测来自所述设备的输出的传感器，用于以使得所述传感器的输出变为等于所需值的方式控制施加于所述设备的控制的操纵变量的自适应控制器，以及 自适应参数矢量调整机制，用于调整自适应控制器使用的自适应参数矢量。 自适应参数矢量调整机构被构造成使得用于更新自适应参数矢量的更新部件被添加到自适应参数矢量的初始值，并且通过将更新部件的至少一部分先前值相乘来更新自适应参数矢量 通过大于0但小于1的预定系数。

    Control system for plants
    34.
    发明授权
    Control system for plants 有权
    植物控制系统

    公开(公告)号：US6125831A

    公开(公告)日：2000-10-03

    申请号：US136924

    申请日：1998-08-21

    申请人： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Hiroshi Kitagawa ,  Shusuke Akazaki

    发明人： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Hiroshi Kitagawa ,  Shusuke Akazaki

    IPC分类号： F02D41/14 ,  G05B13/02 ,  G05B13/04 ,  G05D11/13 ,  F02M25/00

    CPC分类号： F02D41/2461 ,  F02D41/1402 ,  F02D41/1456 ,  G05B13/042 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/143 ,  F02D2041/1433

    摘要： A control system for a plant includes a sensor for detecting an output from the plant, an adaptive controller for controlling a manipulated variable applied to control of the plant in such a manner that an output from the sensor becomes equal to a desired value, and an adaptive parameter-adjusting device for adjusting adaptive parameters used by the adaptive controller. The adaptive parameter-adjusting device has an identification error-calculating device for calculating an identification error of the adaptive parameters and generating an identification error signal indicative of the calculated identification error, and an adjusting device for adjusting the adaptive parameters based on the calculated identification error. The adaptive parameter-adjusting device includes a non-linear filter for generating an output of 0 or approximately 0 in response to the identification error signal when the identification error is within a predetermined range. The adjusting device adjusts the adaptive parameters by using the output from the non-linear filter.

    摘要翻译： 一种用于设备的控制系统包括用于检测来自所述设备的输出的传感器，用于控制施加到所述设备的控制的操作变量的自适应控制器，使得所述传感器的输出变得等于期望值，以及 自适应参数调整装置，用于调整自适应控制器使用的自适应参数。 自适应参数调整装置具有识别误差计算装置，用于计算自适应参数的识别误差并产生表示计算出的识别误差的识别误差信号;以及调整装置，用于基于所计算的识别误差来调整自适应参数 。 自适应参数调整装置包括非线性滤波器，用于当识别误差在预定范围内时响应于识别误差信号产生0或大约0的输出。 调节装置通过使用非线性滤波器的输出来调整自适应参数。

    Air-fuel ratio control system for multi-cylinder internal combustion engines
    37.
    发明授权
    Air-fuel ratio control system for multi-cylinder internal combustion engines 有权
    多缸内燃机空燃比控制系统

    公开(公告)号：US6021767A

    公开(公告)日：2000-02-08

    申请号：US143535

    申请日：1998-08-28

    申请人： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Shusuke Akazaki ,  Hiroshi Kitagawa

    发明人： Yuji Yasui ,  Yusuke Hasegawa ,  Yoshihisa Iwaki ,  Shusuke Akazaki ,  Hiroshi Kitagawa

    IPC分类号： F02D45/00 ,  F02D41/14 ,  F02D41/24 ,  G05B13/04 ,  F02D41/00

    CPC分类号： G05B13/042 ,  F02D41/1402 ,  F02D41/2454 ,  F02D41/2477 ,  F02D2041/1415 ,  F02D2041/1418 ,  F02D2041/143 ,  F02D2041/1433 ,  F02D2250/12 ,  F02D41/1456 ,  F02D41/2483

    摘要： An air-fuel ratio control system for a multi-cylinder engine is provided. An air-fuel ratio sensor is arranged in an exhaust system of the engine for detecting an air-fuel ratio of a mixture supplied to the engine and for generating an output indicative of the air-fuel ratio of the mixture. An adaptive controller determines an amount of fuel to be supplied to the engine with a first predetermined repetition period in a manner such that the output from the air-fuel ratio sensor becomes equal to a desired value. An adaptive parameter-adjusting mechanism adjusts adaptive parameters used by the adaptive controller. In the adaptive parameter-adjusting mechanism, the adaptive parameters are calculated with a second predetermined repetition period longer than the first predetermined repetition period, and output data indicative of results of the calculation is generated. Further, the output data indicative of results of the calculation is smoothed and output data indicative of the smoothed data is generated with a repetition period at least equal to the first predetermined repetition period. The adaptive controller uses the smoothed data as values of the adaptive parameters.

    摘要翻译： 提供了一种用于多缸发动机的空燃比控制系统。 在发动机的排气系统中布置有空燃比传感器，用于检测供应到发动机的混合物的空燃比并产生表示混合物的空燃比的输出。 自适应控制器以使得来自空燃比传感器的输出变得等于期望值的方式，以第一预定重复周期来确定要提供给发动机的燃料量。 自适应参数调整机制调整自适应控制器使用的自适应参数。 在自适应参数调整机构中，以比第一预定重复周期长的第二预定重复周期来计算自适应参数，并且生成表示计算结果的输出数据。 此外，表示计算结果的输出数据被平滑，并且以至少等于第一预定重复周期的重复周期生成指示平滑数据的输出数据。 自适应控制器使用平滑数据作为自适应参数的值。

    Air-fuel ratio control system for internal combustion engines
    38.
    发明授权
    Air-fuel ratio control system for internal combustion engines 失效
    内燃机空燃比控制系统

    公开(公告)号：US5732689A

    公开(公告)日：1998-03-31

    申请号：US606382

    申请日：1996-02-23

    申请人： Hiroshi Ohno ,  Koichi Saiki ,  Yukio Noda ,  Shusuke Akazaki ,  Yoshitaka Takasuka ,  Yusuke Hasegawa

    发明人： Hiroshi Ohno ,  Koichi Saiki ,  Yukio Noda ,  Shusuke Akazaki ,  Yoshitaka Takasuka ,  Yusuke Hasegawa

    IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02D41/22

    CPC分类号： F02D41/008 ,  F02D41/1441 ,  F02D41/2454 ,  F02D41/2474 ,  F02B2275/18 ,  F02D41/1456 ,  F02D41/2477

    摘要： An air-fuel ratio control system for an internal combustion engine has an air-fuel ratio sensor arranged in an exhaust passage of the engine for detecting an air-fuel ratio of exhaust gases emitted from a plurality of cylinders. An output from the air-fuel ratio sensor is sampled whenever the engine rotates through a predetermined crank angle, and sampled values of the output from the air-fuel ratio sensor are sequentially stored. An output characteristic of the air-fuel ratio sensor is detected. One of the sampled values of the output from the air-fuel ratio sensor is selected at least depending on the output characteristic of the air-fuel ratio sensor. An air-fuel ratio of a mixture supplied to each of the cylinders is estimated, separately from other ones of the cylinders, based on selected ones of the sampled values of the output from the air-fuel ratio sensor and a model representative of a behavior of the exhaust passage. The air-fuel ratio of the mixture supplied to the each of the cylinders is controlled in a feedback manner responsive to the estimated air-fuel ratio of the mixture such that the estimated air-fuel ratio of the mixture supplied to the each of the cylinders is converged to a desired air-fuel ratio.

    摘要翻译： 用于内燃机的空燃比控制系统具有布置在发动机的排气通道中的空燃比传感器，用于检测从多个气缸排出的废气的空燃比。 每当发动机旋转预定的曲柄角时，对空燃比传感器的输出进行采样，依次存储来自空燃比传感器的输出的采样值。 检测空燃比传感器的输出特性。 至少根据空燃比传感器的输出特性来选择空燃比传感器的输出的取样值之一。 基于来自空燃比传感器的输出的取样值和代表行为的模型中的选定的一个来估计提供给每个气缸的混合物的空燃比与其它气缸分开地估计 的排气通道。 供给到每个气缸的混合物的空燃比以响应于混合物的估计空燃比的反馈方式进行控制，使得供给到每个气缸的混合物的估计空燃比 收敛到期望的空燃比。

    Air-fuel ratio feedback control system for internal combustion engine
    39.
    发明授权
    Air-fuel ratio feedback control system for internal combustion engine 失效
    内燃机空燃比反馈控制系统

    公开(公告)号：US5531208A

    公开(公告)日：1996-07-02

    申请号：US305162

    申请日：1994-09-13

    申请人： Yusuke Hasegawa ,  Isao Komoriya ,  Shusuke Akazaki ,  Eisuke Kimura

    发明人： Yusuke Hasegawa ,  Isao Komoriya ,  Shusuke Akazaki ,  Eisuke Kimura

    IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/34 ,  F02D45/00

    CPC分类号： F02D41/008 ,  F02D41/1401 ,  F02D41/1473 ,  F02D2041/1409 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/1431 ,  F02D2041/1433 ,  F02D41/1456

    摘要： A system for controlling an air-fuel ratio of an air-fuel mixture supplied to each cylinder of a multicylinder internal combustion engine. A first feedback loop is provided for converging a first air-fuel ratio at a location at least either at or downstream of a confluence point of an exhaust system to a first desired air-fuel ratio by multiplying a first feedback gain to a first error therebetween. And a second feedback loop is provided in the first loop for converging a second current air-fuel ratio at each cylinder to a second desired air-fuel ratio by multiplying a second feedback gain to a second error. The first feedback loop and said second feedback loop are connected in series such that the second loop located inside the first loop. With the arrangement. the second loop operates the second air-fuel ratio converges to converge the second air-fuel ratio to the first air-fuel ratio which in turn tends to converge on the first desired air-fuel ratio such that the air-fuel ratios of all cylinders can therefore be converged on the desired air-fuel ratio.

    摘要翻译： 一种用于控制供应到多缸内燃机的每个气缸的空气燃料混合物的空燃比的系统。 提供第一反馈回路，用于通过将第一反馈增益乘以第一反馈增益与其间的第一误差，将排气系统的汇合点的至少一个或下游的位置处的第一空燃比收敛到第一期望的空燃比 。 并且在第一回路中提供第二反馈回路，用于通过将第二反馈增益乘以第二误差来将每个气缸处的第二当前空燃比收敛到第二所需空燃比。 第一反馈回路和所述第二反馈回路串联连接，使得位于第一回路内的第二回路。 随着安排。 所述第二回路操作所述第二空燃比收敛以将所述第二空燃比收敛到所述第一空燃比，所述第一空燃比又趋于收敛于所述第一期望空燃比，使得所有气缸的空燃比 因此可以收敛于期望的空燃比。