Control system for plants
    31.
    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

    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
    33.
    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

    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。

    Exhaust switch-over valve malfunction detection system of internal combustion engine
    34.
    发明授权
    Exhaust switch-over valve malfunction detection system of internal combustion engine 失效
    内燃机排气开关阀故障检测系统

    公开(公告)号:US06182445B2

    公开(公告)日:2001-02-06

    申请号:US09498654

    申请日:2000-02-07

    IPC分类号: F01N300

    摘要: A system for detecting malfunctions of an exhaust switch-over valve of an internal combustion engine, which opens/closes a bypass exhaust gas passage branched from an exhaust pipe of the engine and storing an adsorbent that adsorbs unburned components of the exhaust gas generated by the engine when the engine is started. In the system, the entrance temperature and the exit temperature in the bypass exhaust gas passage are detected and compared with each other in a first detection period when the passage is opened and in a second detection period when the passage is closed. Based on this comparison, it is determined whether the valve malfunctions. Alternatively, the valve malfunction is determined by comparing the valve opening/closing state with an instruction to operate the valve. With this, little time lag exists in the detection, thereby improving malfunction detection accuracy.

    摘要翻译: 一种用于检测内燃机的排气切换阀的故障的系统,其对从发动机的排气管分支的旁通废气通道进行开闭,并且存储吸附由所述排气管产生的废气的未燃烧成分的吸附剂 发动机起动时发动机。 在该系统中,当通道打开时的第一检测时段和通道关闭的第二检测期间,检测旁路排气通道中的入口温度和出口温度并进行比较。 基于此比较,确定阀是否故障。 或者,通过将阀打开/关闭状态与操作阀的指令进行比较来确定阀故障。 因此,在检测中存在很少的时滞,从而提高故障检测精度。

    Control system for a plant using identified model parameters
    36.
    发明授权
    Control system for a plant using identified model parameters 有权
    使用识别模型参数的工厂控制系统

    公开(公告)号:US07050864B2

    公开(公告)日:2006-05-23

    申请号:US10312108

    申请日:2002-04-19

    IPC分类号: G05B13/02

    摘要: 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).

    摘要翻译: 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)。

    Control system for correcting a torque variation of an engine
    37.
    发明授权
    Control system for correcting a torque variation of an engine 失效
    用于校正发动机的扭矩变化的控制系统

    公开(公告)号:US06975934B2

    公开(公告)日:2005-12-13

    申请号:US10801585

    申请日:2004-03-17

    摘要: The present invention provides a control system for an internal combustion engine for detecting a torque variation based on a rotational speed of the engine and suppress the torque variation. The system includes a detector for detecting a rotational speed of the engine, a memory for storing a variation pattern of the rotational speed of the engine when a torque of the internal combustion engine is excessive and a controller for calculating a variation component of the rotational speed based on the detected rotational speed, The controller calculates the correlation between the variation component and the variation pattern that is read out from the memory and then determines a torque variation state of the engine based on the correlation.

    摘要翻译: 本发明提供一种用于内燃机的控制系统,用于基于发动机的转速来检测转矩变化并抑制转矩变化。 该系统包括用于检测发动机的转速的检测器,用于在内燃机的扭矩过大时存储发动机的转速的变化模式的存储器和用于计算转速的变化分量的控制器 基于检测到的转速,控制器计算从存储器读出的变化分量和变化模式之间的相关性,然后基于相关性来确定发动机的转矩变化状态。

    Control system for plant
    38.
    发明授权
    Control system for plant 有权
    植物控制系统

    公开(公告)号:US06859717B2

    公开(公告)日:2005-02-22

    申请号:US10395995

    申请日:2003-03-25

    摘要: A control system for a plant is disclosed. The control system includes a response specifying type controller for controlling the plant with a response specifying type control. The response specifying type controller calculates a nonlinear input according to a sign of a value of a switching function and an output of the plant. The switching function is defined as a linear function of a deviation between the output of the plant and a control target value. A control input from the response specifying type controller to the plant includes the nonlinear input.

    摘要翻译: 公开了一种植物的控制系统。 控制系统包括响应指定型控制器,用于控制具有响应指定类型控制的设备。 响应指定型控制器根据切换功能的值和设备的输出的符号来计算非线性输入。 切换功能被定义为工厂输出与控制目标值之间的偏差的线性函数。 从响应指定型控制器到工厂的控制输入包括非线性输入。

    Control system for plant
    40.
    发明授权
    Control system for plant 有权
    植物控制系统

    公开(公告)号:US06668200B2

    公开(公告)日:2003-12-23

    申请号:US10145546

    申请日:2002-05-14

    IPC分类号: G05B1302

    摘要: A control system for a plant, includes a sliding mode controller for controlling the plant with a sliding mode control. The sliding mode controller controls the plant using a switching function defined as a linear function of a deviation between an output of the plant and a control target value, and changes the switching function according to at least one of a parameter indicative of the output of the plant and a parameter indicative of an amount of change in the output of the plant.

    摘要翻译: 一种用于工厂的控制系统,包括滑动模式控制器,用于通过滑动模式控制来控制工厂。 滑动模式控制器使用定义为工厂的输出与控制目标值之间的偏差的线性函数的切换功能来控制工厂,并且根据指示输出的参数中的至少一个来改变切换功能 植物和指示植物输出量变化的参数。