State determining apparatus for exhaust gas purifier
    1.
    发明公开
    State determining apparatus for exhaust gas purifier 有权
    Gerust Zur Zustandsbestimmung eines Abgasreinigers

    公开(公告)号:EP1291503A2

    公开(公告)日:2003-03-12

    申请号:EP02020088.7

    申请日:2002-09-06

    IPC分类号: F01N11/00

    摘要: A state determining apparatus for an exhaust gas purifier (6) is provided for accurately determining the state of the exhaust gas purifier including an adsorbent (7) for adsorbing hydrocarbons, including a deterioration of the adsorbent (7), in accordance with a temperature state in an exhaust system of an internal combustion engine (1). The state determining apparatus for an exhaust gas purifier is arranged in an exhaust system of the internal combustion engine for determining the state of the exhaust gas purifier including the adsorbent (7) capable of adsorbing hydrocarbons and moisture in exhaust gas. The state determining apparatus comprises a humidity sensor (22) arranged near the adsorbent (7) in the exhaust system for detecting the humidity within a bypass exhaust pipe (14), and an ECU (25) for determining a temperature state of the exhaust system and determining the state of adsorbent (7) in accordance with the humidity within the bypass exhaust pipe (14) detected by the humidity sensor (22) and the temperature state in the exhaust system detected by the ECU (25).

    摘要翻译: 提供了一种用于排气净化器(6)的状态确定装置,用于根据温度状态精确地确定包括吸附有吸附剂(7)的劣化的吸附剂的吸附剂(7)的废气净化器的状态 在内燃机(1)的排气系统中。 用于排气净化器的状态判定装置设置在内燃机的排气系统中,用于确定包括能够吸附废气中的碳氢化合物和水分的吸附剂的排气净化器的状态。 所述状态判定装置包括在所述排气系统中的吸附剂(7)附近设置的用于检测旁通排气管(14)内的湿度的湿度传感器(22),以及用于确定排气系统的温度状态的ECU(25) 以及根据由所述湿度传感器(22)检测到的所述旁路排气管(14)内的湿度和由所述ECU(25)检测到的所述排气系统的温度状态来确定吸附剂(7)的状态。

    Failure diagnosis apparatus for throttle valve actuating device
    2.
    发明公开
    Failure diagnosis apparatus for throttle valve actuating device 有权
    用于设备的故障诊断装置,用于调节节气门

    公开(公告)号:EP1378643A3

    公开(公告)日:2006-07-19

    申请号:EP03013956.2

    申请日:2003-06-20

    IPC分类号: F02D11/10 F02D41/22

    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.

    Failure diagnosis apparatus for throttle valve actuating device
    6.
    发明公开
    Failure diagnosis apparatus for throttle valve actuating device 有权
    Fehlerdiagnosevorrichtungfüreine Vorrichtung zur Verstellung einer Drosselklappe

    公开(公告)号:EP1378643A2

    公开(公告)日:2004-01-07

    申请号:EP03013956.2

    申请日:2003-06-20

    IPC分类号: F02D11/10 F02D41/22

    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口重合。 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。

    Failure determination device for humidity sensor and control system for exhaust passage changeover valve
    8.
    发明公开
    Failure determination device for humidity sensor and control system for exhaust passage changeover valve 有权
    设备,用于故障判定的湿度传感器的装置和用于控制在排气系统中的转换阀

    公开(公告)号:EP1203878A2

    公开(公告)日:2002-05-08

    申请号:EP01124973.7

    申请日:2001-10-19

    摘要: There are provided a failure determination device simple in construction and capable of properly determining failure of a humidity sensor that detects the humidity of exhaust gases from an internal combustion engine and a control system for an exhaust passage changeover valve, which can switch the changeover valve with appropriate timing, thereby enabling sufficient purification of exhaust gases. In one form of the invention, an operating condition of the engine is detected. It is judged based on the detected operating condition of the engine whether or not the engine is in an operating condition in which failure determination of the humidity sensor can be executed. It is determined whether or not the humidity sensor has failed, based on a result of detection by the humidity sensor, when it has been judged that the failure determination of the humidity sensor can be executed. In another form of the invention, a changeover valve switches an exhaust passage having a catalytic device arranged therein for purifying exhaust gases from the engine, between a main exhaust passage and a bypass exhaust passage bypassing the main exhaust passage and having an adsorber arranged therein which is capable of adsorbing hydrocarbons and water in the exhaust gases. A humidity sensor is arranged at a location downstream of the adsorber in the bypass exhaust passage, for detecting humidity of the exhaust gases guided into the bypass exhaust passage. The changeover valve is driven based on a result of detection by the humidity sensor.

    摘要翻译: 本发明提供一种湿度传感器的确定性采矿故障的故障判定装置没从内燃发动机并在排气路切换阀的控制系统检测废气的湿度。 在本发明的一种形式中,判断基于所述发动机的所检测工作条件的发动机是否处于中的操作条件哪个湿度传感器的故障判定可以被执行。 它然后确定开采湿度传感器是否发生故障,是根据由所述湿度传感器检测的结果。 在本发明的另一种形式中,切换阀切换到排出具有布置在其中的催化装置,一个主排气通道和旁通废气通道之间通道并具有以吸附其中的所有其能够吸附烃和水的布置。 湿度传感器在旁路排气通道中的吸附器的下游位置布置,用于检测被引导到旁通排气通道中的废气的湿度。 切换阀基于所述检测的结果来驱动。

    Catalyst state detector for exhaust gas purifying catalyst
    9.
    发明公开
    Catalyst state detector for exhaust gas purifying catalyst 有权
    Zustand eine Abgasreinigungskatalysators

    公开(公告)号:EP1132589A1

    公开(公告)日:2001-09-12

    申请号:EP01104354.4

    申请日:2001-02-23

    IPC分类号: F01N11/00

    摘要: A catalyst state detector for detecting a state of an exhaust gas purifying catalyst which is capable of accurately detecting the state, including deterioration, of an HC adsorbent (7) contained in the exhaust gas purifying catalyst for adsorbing hydrocarbons in exhaust gases of an internal combustion engine (1), and can be manufactured at a low cost. The exhaust gas purifying catalyst (5) is arranged at an intermediate portion of an exhaust pipe (4), and the HC adsorbent (7) is capable of adsorbing hydrocarbons and moisture in exhaust gases. The catalyst state detector comprises a downstream humidity sensor (22) arranged at a location downstream of the HC adsorbent (7) in the exhaust pipe (4) for detecting a humidity of the exhaust gases, and an adsorbent state detecting unit (ECU) for detecting the state of the HC adsorbent (7) in accordance with the result of detection made by the downstream humidity sensor (22).

    摘要翻译: 一种用于检测废气净化催化剂的状态的催化剂状态检测器,其能够精确地检测包含在用于吸附内燃机废气中的烃的废气净化催化剂中的HC吸附剂(7)的状态(包括劣化) 发动机(1),并且可以以低成本制造。 排气净化催化剂(5)配置在排气管(4)的中间部,HC吸附剂(7)能够吸附废气中的碳氢化合物和水分。 催化剂状态检测器包括布置在排气管(4)中的HC吸附剂(7)下游位置处的下游湿度传感器(22),用于检测废气的湿度;以及吸附剂状态检测单元(ECU),用于 根据下游湿度传感器(22)的检测结果检测HC吸附剂(7)的状态。