Method and apparatus for the self-diagnosis of an exhaust gas probe
    1.
    发明授权
    Method and apparatus for the self-diagnosis of an exhaust gas probe 有权
    用于排气探头自诊断的方法和装置

    公开(公告)号:US08788184B2

    公开(公告)日:2014-07-22

    申请号:US13089770

    申请日:2011-04-19

    IPC分类号: F01N9/00 F01M11/00 F02D41/14

    摘要: A method for the self-diagnosis of an exhaust gas probe (20). The exhaust gas probe (20) has at least one heating element (26). The method includes a modeled heat output PH is determined for the heating element (26) by means of a computer program comparing parameters of the gas stream with a measured heat output, and determining, when the parameters of the gas stream exceeds the measured heat output by more than a defined tolerance limit, that one of the exhaust gas probe (20) is defective, and an exhaust gas section (17) in which the exhaust gas probe (20) is installed is faulty.

    摘要翻译: 一种用于排气探针(20)的自诊断的方法。 排气探针(20)具有至少一个加热元件(26)。 该方法包括通过将气流的参数与测量的热输出进行比较的计算机程序来确定加热元件(26)的模拟热输出PH,并且当气流的参数超过测量的热输出时 超过规定的容许限度,排气探针(20)中的一个是有缺陷的,并且其中安装有排气探头(20)的排气部分(17)有故障。

    METHOD AND APPARATUS FOR THE SELF-DIAGNOSIS OF AN EXHAUST GAS PROBE
    2.
    发明申请
    METHOD AND APPARATUS FOR THE SELF-DIAGNOSIS OF AN EXHAUST GAS PROBE 有权
    用于自动诊断气体探针的方法和装置

    公开(公告)号:US20110252768A1

    公开(公告)日:2011-10-20

    申请号:US13089770

    申请日:2011-04-19

    IPC分类号: F01N11/00

    摘要: A method for the self-diagnosis of an exhaust gas probe (20). The exhaust gas probe (20) has at least one heating element (26). The method includes a modeled heat output PH is determined for the heating element (26) by means of a computer program comparing parameters of the gas stream with a measured heat output, and determining, when the parameters of the gas stream exceeds the measured heat output by more than a defined tolerance limit, that one of the exhaust gas probe (20) is defective, and an exhaust gas section (17) in which the exhaust gas probe (20) is installed is faulty.

    摘要翻译: 一种用于排气探针(20)的自诊断的方法。 排气探针(20)具有至少一个加热元件(26)。 该方法包括通过将气流的参数与测量的热输出进行比较的计算机程序来确定加热元件(26)的模拟热输出PH,并且当气流的参数超过测量的热输出时 超过规定的容许限度,排气探针(20)中的一个是有缺陷的,并且其中安装有排气探针(20)的排气部分(17)是错误的。

    MONITORING OF A PARTICLE LIMIT VALUE IN THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE
    8.
    发明申请
    MONITORING OF A PARTICLE LIMIT VALUE IN THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE 有权
    在内燃机的排气中监测颗粒极限值

    公开(公告)号:US20100180669A1

    公开(公告)日:2010-07-22

    申请号:US12689582

    申请日:2010-01-19

    IPC分类号: G01N1/22

    摘要: The invention relates to a method for diagnosing a particle filter used for filtering particles out of the exhaust gas of an internal combustion engine, wherein a collecting particle sensor is disposed downstream of the particle filter in the direction of flow of the exhaust gas and wherein a measurement for the loading of the particle sensor is determined from an output signal of the particle sensor. Provision is thereby made for the temporal integral of a parameter correlating to the particle emissions of the internal combustion engine to be formed during a measurement cycle, for the measurement for the loading of the particle sensor to be associated with the integral at least one measurement point in time during the measurement cycle and for a defective particle filter to be suggested if the measurement for the loading of the particle sensor is higher than a loading threshold value associated with the integral or if the integral is lower than an integral threshold value associated with the measurement for the loading of the particle sensor. The invention further relates to a device for carrying out the method. The method and the device allow for the diagnosis of the functionality of a particle filter in the exhaust gas of an internal combustion engine during any operating conditions passed through by the internal combustion engine.

    摘要翻译: 本发明涉及一种用于诊断用于从内燃机的废气中除去颗粒的颗粒过滤器的方法,其中,在排气的流动方向上,在颗粒过滤器的下游配置有收集粒子传感器,其中, 从粒子传感器的输出信号确定粒子传感器的负载的测量。 因此,为了在测量周期期间形成与要形成的内燃机的颗粒物排放相关的参数的时间积分,为了与颗粒传感器的积分测量相关联的整数的至少一个测量点 如果粒子传感器的负载测量高于与积分相关联的负载阈值,或者如果积分低于与该积分相关联的积分阈值,则在测量周期期间的时间以及有缺陷的粒子滤波器被建议 颗粒传感器负载测量。 本发明还涉及一种用于执行该方法的装置。 该方法和装置允许在由内燃机通过的任何操作条件期间诊断内燃机的废气中的颗粒过滤器的功能。

    Monitoring of a particle limit value in the exhaust gas of an internal combustion engine
    9.
    发明授权
    Monitoring of a particle limit value in the exhaust gas of an internal combustion engine 有权
    监测内燃机废气中的颗粒极限值

    公开(公告)号:US08327696B2

    公开(公告)日:2012-12-11

    申请号:US12689582

    申请日:2010-01-19

    IPC分类号: G01M15/10

    摘要: The invention relates to a method for diagnosing a particle filter used for filtering particles out of the exhaust gas of an internal combustion engine, wherein a collecting particle sensor is disposed downstream of the particle filter in the direction of flow of the exhaust gas and wherein a measurement for the loading of the particle sensor is determined from an output signal of the particle sensor. Provision is thereby made for the temporal integral of a parameter correlating to the particle emissions of the internal combustion engine to be formed during a measurement cycle, for the measurement for the loading of the particle sensor to be associated with the integral at least one measurement point in time during the measurement cycle and for a defective particle filter to be suggested if the measurement for the loading of the particle sensor is higher than a loading threshold value associated with the integral or if the integral is lower than an integral threshold value associated with the measurement for the loading of the particle sensor. The invention further relates to a device for carrying out the method. The method and the device allow for the diagnosis of the functionality of a particle filter in the exhaust gas of an internal combustion engine during any operating conditions passed through by the internal combustion engine.

    摘要翻译: 本发明涉及一种用于诊断用于从内燃机的废气中除去颗粒的颗粒过滤器的方法,其中,在排气的流动方向上,在颗粒过滤器的下游配置有收集粒子传感器,其中, 从粒子传感器的输出信号确定粒子传感器的负载的测量。 因此,为了在测量周期期间形成与要形成的内燃机的颗粒物排放相关的参数的时间积分,为了与颗粒传感器的积分测量相关联的整数的至少一个测量点 如果粒子传感器的负载测量高于与积分相关联的负载阈值,或者如果积分低于与该积分相关联的积分阈值,则在测量周期期间的时间以及有缺陷的粒子滤波器被建议 颗粒传感器负载测量。 本发明还涉及一种用于执行该方法的装置。 该方法和装置允许在由内燃机通过的任何操作条件期间诊断内燃机的废气中的颗粒过滤器的功能。