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    • 61. 发明授权
    • Vehicle controller for controlling an air-fuel ratio
    • 用于控制空燃比的车辆控制器
    • US06904355B2
    • 2005-06-07
    • US10635464
    • 2003-08-07
    • Yuji YasuiYoshihisa IwakiAkihiro Shinjo
    • Yuji YasuiYoshihisa IwakiAkihiro Shinjo
    • F02D45/00F01N3/24F02D41/02F02D41/14G05B13/02G05B21/02B60T7/12
    • F02D41/1454F02D41/0235F02D41/1402F02D41/1403F02D41/1441F02D41/1456F02D2041/142F02D2041/1423F02D2041/1431F02D2041/1432G05B13/0255G05B21/02
    • A vehicle controller for controlling the air-fuel ratio of an engine is provided. In one embodiment, the controller comprises a first exhaust gas sensor provided downstream of the catalyst for detecting oxygen concentration of exhaust gas, a first decimation filter connected to the first exhaust gas sensor, and a control unit connected to the first decimation filter. The control unit determines a manipulated variable for manipulating the air-fuel ratio. The first decimation filter oversamples, low-pass filters and then downsamples the output of the first exhaust gas sensor. The first decimation filter can remove chemical noise from the output of the exhaust gas sensor. In another embodiment, a second decimation filter is connected to a second exhaust gas sensor provided upstream of the catalyst for detecting the air-fuel ratio of the exhaust gas. The second decimation filter oversamples, low-pass filters and then downsamples the output of the second exhaust gas sensor. The second decimation filter can compensate the shortage of resolution of the air-fuel ratio sensor.
    • 提供了一种用于控制发动机的空燃比的车辆控制器。 在一个实施例中,控制器包括设置在用于检测废气氧浓度的催化剂下游的第一废气传感器,连接到第一排气传感器的第一抽取滤波器和连接到第一抽取滤波器的控制单元。 控制单元确定用于操纵空燃比的操纵变量。 第一抽取滤波器过采样低通滤波器,然后对第一排气传感器的输出进行下采样。 第一抽取滤波器可以从废气传感器的输出中去除化学噪声。 在另一个实施例中,第二抽取滤波器连接到设置在用于检测排气的空燃比的催化剂上游的第二排气传感器。 第二抽取滤波器过采样低通滤波器,然后对第二排气传感器的输出进行下采样。 第二抽取滤波器可以补偿空燃比传感器的分辨率不足。
    • 63. 发明授权
    • Control system for plant and air-fuel ratio control system for internal combustion engine
    • 内燃机厂房和空燃比控制系统控制系统
    • US06814067B2
    • 2004-11-09
    • US10207258
    • 2002-07-30
    • Yuji YasuiYoshihisa Iwaki
    • Yuji YasuiYoshihisa Iwaki
    • F02D4114
    • F02D41/1402F02D2041/1423F02D2041/1433G05B13/042
    • A control system for a plant, having an identifier and a controller. The identifier identifies model parameters of a controlled object model which is obtained by modeling the plant. The controller calculates a control input to the plant so that an output from the plant coincides with a control target value, using the identified model parameters. The controller calculates a self-tuning control input, using the model parameters identified by the identifier. The controller further calculates a damping control input according to the rate of change in the output from the plant or the rate of change in a deviation between the output from the plant and the control target value. The controller calculates the control input to the plant as a sum of the self-tuning control input and the damping control input.
    • 一种用于工厂的控制系统,具有标识符和控制器。 标识符识别通过对工厂建模获得的受控对象模型的模型参数。 控制器计算到工厂的控制输入,使得使用所识别的模型参数,来自设备的输出与控制目标值一致。 控制器使用由标识符标识的模型参数来计算自整定控制输入。 控制器还根据工厂输出的变化率或者工厂输出与控制目标值之间的偏差变化率来计算阻尼控制输入。 控制器将工厂的控制输入计算为自整定控制输入和阻尼控制输入的总和。