Control system for throttle valve actuating device
    1.
    发明授权
    Control system for throttle valve actuating device 有权
    节流阀驱动装置控制系统

    公开(公告)号:US06848420B2

    公开(公告)日:2005-02-01

    申请号:US10640946

    申请日:2003-08-13

    摘要: A control system for a throttle valve actuating device is disclosed. The throttle valve actuating device has a throttle valve of an internal combustion engine and an actuator for actuating the throttle valve. Model parameters of a controlled object model obtained by modeling the throttle valve actuating device is identified by an identifier. The model parameters includes a specific model parameter irrelevant to an input and an output of the controlled object model. An opening of the throttle valve is controlled to a target opening using the identified model parameters. It is determined that the throttle valve actuating device is abnormal when the value of the specific model parameter becomes greater than a predetermined value.

    摘要翻译: 公开了一种用于节流阀致动装置的控制系统。 节流阀致动装置具有内燃机的节流阀和用于致动节流阀的致动器。 通过对节气门致动装置建模获得的受控对象模型的模型参数由标识符标识。 模型参数包括与受控对象模型的输入和输出无关的特定模型参数。 使用所识别的模型参数将节流阀的开度控制到目标开度。 当特定模型参数的值变得大于预定值时,确定节流阀致动装置异常。

    Control system for plant
    2.
    发明授权
    Control system for plant 有权
    植物控制系统

    公开(公告)号:US07251536B2

    公开(公告)日:2007-07-31

    申请号:US10656382

    申请日:2003-09-05

    IPC分类号: G05B13/02

    摘要: A control system for a plant is disclosed. The control system includes a controller for controlling the plant based on a controlled object model which is obtained by modeling the plant. The controlled object model is modeled using an input and an output of the plant which are sampled at intervals of a sampling period which is longer than a control period of the controller. The sampled input of the plant is a filtered control output which is obtained by filtering an output of the controller. The controller carries out a control process of the plant at intervals of the control period.

    摘要翻译: 公开了一种植物的控制系统。 该控制系统包括一个控制器,用于通过模拟该设备获得的受控对象模型来控制该设备。 受控对象模型使用工厂的输入和输出进行建模,该输入和输出以比控制器的控制周期长的采样周期的间隔进行采样。 工厂的采样输入是通过对控制器的输出进行滤波而获得的滤波控制输出。 控制器以控制周期的间隔执行工厂的控制过程。

    Failure diagnosis apparatus for throttle valve actuating device
    3.
    发明授权
    Failure diagnosis apparatus for throttle valve actuating device 有权
    节气门致动装置故障诊断装置

    公开(公告)号:US06789525B2

    公开(公告)日:2004-09-14

    申请号:US10612249

    申请日:2003-07-01

    IPC分类号: F00D100

    摘要: A failure diagnosis apparatus for a throttle valve actuating device is disclosed. The throttle valve actuating device has an actuator for actuating a throttle valve provided in an intake system of an internal combustion engine and biasing elements for biasing the throttle valve to a predetermined retention opening. A feedback control of the throttle valve is performed so that an opening of the throttle valve coincides with a first predetermined opening. After the throttle valve is controlled to the first predetermined opening, a feedback control of the throttle valve is performed so that an opening of the throttle valve coincides with a second predetermined opening. It is determined that the throttle valve actuating device has failed when the time period during which the opening of the throttle valve remains in a predetermined determination range including the second predetermined opening, is shorter than a predetermined time period when performing the feedback control to the second predetermined opening.

    摘要翻译: 公开了一种用于节气门致动装置的故障诊断装置。 节流阀致动装置具有致动器,用于致动设置在内燃机的进气系统中的节流阀和用于将节气门偏压到预定保持开口的偏压元件。 执行节流阀的反馈控制,使得节流阀的开度与第一预定开度一致。 在节流阀被控制到第一预定开度之后,执行节流阀的反馈控制,使得节流阀的开度与第二预定开度一致。 当节气门开度保持在包括第二预定开度的预定确定范围的时间段时,确定节气门致动装置已经失败,当对第二预定开度执行反馈控制时,节气门致动装置的预定时间段短 预定开口。

    Adsorbent state determining apparatus

    公开(公告)号:US06640540B2

    公开(公告)日:2003-11-04

    申请号:US09978020

    申请日:2001-10-17

    IPC分类号: F01N300

    摘要: An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration as well as for allowing for recovery of the adsorbent if its adsorbent performance can be restored. The adsorbent state determining apparatus determines the state of an adsorbent for adsorbing hydrocarbons contained in exhaust gases. An upstream and a downstream temperature sensor are provided at upstream and downstream locations of the adsorbent in an exhaust system for detecting temperatures of exhaust gases upstream and downstream of the adsorbent. An engine water temperature sensor detects an operating state of the engine. An ECU estimates the temperature of the exhaust gas which should be detected downstream of the adsorbent during adsorption of the adsorbent based on the upstream temperature detected by the upstream temperature sensor and an engine water temperature of the engine detected by the engine water temperature sensor. The ECU then compares the estimated downstream temperature with the detected downstream temperature detected by the downstream temperature sensor during adsorption of the adsorbent to determine the adsorption state of the adsorbent.