METHOD FOR MONITORING A CATALYTIC CONVERTER
    1.
    发明申请
    METHOD FOR MONITORING A CATALYTIC CONVERTER 有权
    监测催化转换器的方法

    公开(公告)号:US20120255280A1

    公开(公告)日:2012-10-11

    申请号:US13440810

    申请日:2012-04-05

    IPC分类号: F01N11/00

    摘要: A method for monitoring the capability of a catalytic converter to convert nitrogen monoxide into nitrogen dioxide in the exhaust gas of an internal combustion engine, the catalytic converter being arranged in an exhaust gas duct of the internal combustion engine and the catalytic converter being followed downstream by a collecting particle sensor. It is in this case provided that, in a monitoring cycle, a decrease in the particle loading of the particle sensor during the operation of the internal combustion engine under predetermined operating conditions is taken to conclude an adequate capability of the catalytic converter to convert from nitrogen monoxide to nitrogen dioxide.

    摘要翻译: 一种用于监测催化转化器将一氧化氮转化成内燃机排气中的二氧化氮的能力的方法,催化转化器设置在内燃机的排气管道和催化转化器的下游, 收集粒子传感器。 在这种情况下,只要在监视周期中,在预定的操作条件下,在内燃机操作期间颗粒传感器的颗粒负载的减少被采取以得出催化转化器从氮转化的足够能力 一氧化氮与二氧化氮。

    Procedure to diagnose a particle filter and device to implement the procedure
    3.
    发明申请
    Procedure to diagnose a particle filter and device to implement the procedure 失效
    诊断颗粒过滤器和设备以执行过程的过程

    公开(公告)号:US20080000218A1

    公开(公告)日:2008-01-03

    申请号:US11800020

    申请日:2007-05-03

    IPC分类号: F02B27/00

    摘要: A procedure to diagnose a particle filter disposed in an exhaust gas area of an internal combustion engine as well as a device to implement the procedure is proposed. Provision is made to ascertain the degree of efficiency of the particle filter on the basis of the upstream particle flow occurring upstream in front of the particle filter and on the basis of the downstream particle flow occurring downstream behind the particle filter. The ascertainment of the degree of efficiency of the particle filter allows for an On-Board-Diagnosis of the particle filter, with which compliance with specified exhaust gas threshold values can be assured.

    摘要翻译: 提出了一种诊断设置在内燃机的排气区域中的颗粒过滤器的过程以及实现该过程的装置。 规定了基于在颗粒过滤器前方上游发生的上游颗粒流和基于在颗粒过滤器下游发生的下游颗粒流来确定颗粒过滤器的效率的程度。 确定颗粒过滤器的效率程度允许对颗粒过滤器进行车载诊断,从而可以确保符合规定的废气阈值。

    Method for monitoring a pollutant conversion capacity in an exhaust gas aftertreatment system
    4.
    发明授权
    Method for monitoring a pollutant conversion capacity in an exhaust gas aftertreatment system 有权
    废气后处理系统污染物转化能力监测方法

    公开(公告)号:US09222395B2

    公开(公告)日:2015-12-29

    申请号:US12974941

    申请日:2010-12-21

    IPC分类号: F01N3/00 F01N11/00

    CPC分类号: F01N11/00 Y02T10/47

    摘要: The present invention relates to a method for monitoring a pollutant conversion capacity of a catalytically coated, oxidizing exhaust gas aftertreatment component (29) in an exhaust gas system (13) of an internal combustion engine (15). A nitrogen oxide sensor (31, 32) is disposed in each case in the flow path of the exhaust gas upstream of and downstream of the oxidizing exhaust gas aftertreatment component (29), a capacity of said oxidizing exhaust gas aftertreatment component (29) for converting NO to NO2 being ascertained from a comparison of the two signals (Z′, Z″) of the nitrogen oxide sensors (31, 32). Additional independent claims relate to an open-loop and/or closed-loop control device (17), a computer program and a computer program product.

    摘要翻译: 本发明涉及一种用于监测内燃机(15)的排气系统(13)中的催化涂覆的氧化废气后处理部件(29)的污染物转化能力的方法。 在氧化废气后处理部件(29)的上游侧和下游侧的废气流路中,分别设置氮氧化物传感器(31,32),所述氧化废气后处理部件(29)的容量为 根据氮氧化物传感器(31,32)的两个信号(Z',Z“)的比较来确定NO转换为NO2。 附加独立权利要求涉及开环和/或闭环控制装置(17),计算机程序和计算机程序产品。

    Procedure to diagnose a particle filter and device to implement the procedure
    5.
    发明授权
    Procedure to diagnose a particle filter and device to implement the procedure 失效
    诊断颗粒过滤器和设备以执行过程的过程

    公开(公告)号:US08695331B2

    公开(公告)日:2014-04-15

    申请号:US11800020

    申请日:2007-05-03

    IPC分类号: F01N3/02

    摘要: A procedure to diagnose a particle filter disposed in an exhaust gas area of an internal combustion engine as well as a device to implement the procedure is proposed. Provision is made to ascertain the degree of efficiency of the particle filter on the basis of the upstream particle flow occurring upstream in front of the particle filter and on the basis of the downstream particle flow occurring downstream behind the particle filter. The ascertainment of the degree of efficiency of the particle filter allows for an On-Board-Diagnosis of the particle filter, with which compliance with specified exhaust gas threshold values can be assured.

    摘要翻译: 提出了一种诊断设置在内燃机的排气区域中的颗粒过滤器的过程以及实现该过程的装置。 规定了基于在颗粒过滤器前方上游发生的上游颗粒流和基于在颗粒过滤器下游发生的下游颗粒流来确定颗粒过滤器的效率的程度。 确定颗粒过滤器的效率程度允许对颗粒过滤器进行车载诊断,从而可以确保符合规定的废气阈值。

    METHOD FOR MONITORING A POLLUTANT CONVERSION CAPACITY IN AN EXHAUST GAS AFTERTREATMENT SYSTEM
    6.
    发明申请
    METHOD FOR MONITORING A POLLUTANT CONVERSION CAPACITY IN AN EXHAUST GAS AFTERTREATMENT SYSTEM 有权
    在排气系统中监测污染物转化能力的方法

    公开(公告)号:US20110146239A1

    公开(公告)日:2011-06-23

    申请号:US12974941

    申请日:2010-12-21

    IPC分类号: F01N11/00

    CPC分类号: F01N11/00 Y02T10/47

    摘要: The present invention relates to a method for monitoring a pollutant conversion capacity of a catalytically coated, oxidizing exhaust gas aftertreatment component (29) in an exhaust gas system (13) of an internal combustion engine (15). A nitrogen oxide sensor (31, 32) is disposed in each case in the flow path of the exhaust gas upstream of and downstream of the oxidizing exhaust gas aftertreatment component (29), a capacity of said oxidizing exhaust gas aftertreatment component (29) for converting NO to NO2 being ascertained from a comparison of the two signals (Z′, Z″) of the nitrogen oxide sensors (31, 32). Additional independent claims relate to an open-loop and/or closed-loop control device (17), a computer program and a computer program product.

    摘要翻译: 本发明涉及一种用于监测内燃机(15)的排气系统(13)中的催化涂覆的氧化废气后处理部件(29)的污染物转化能力的方法。 在氧化废气后处理部件(29)的上游侧和下游侧的废气流路中,分别设置氮氧化物传感器(31,32),所述氧化废气后处理部件(29)的容量为 根据氮氧化物传感器(31,32)的两个信号(Z',Z“)的比较来确定NO转换为NO2。 附加独立权利要求涉及开环和/或闭环控制装置(17),计算机程序和计算机程序产品。

    Monitoring of a particle limit value in the exhaust gas of an internal combustion engine
    7.
    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。

    Method for operating an internal combustion engine and device for implementing the method
    8.
    发明申请
    Method for operating an internal combustion engine and device for implementing the method 有权
    用于操作内燃机的方法和用于实施该方法的装置

    公开(公告)号:US20060207244A1

    公开(公告)日:2006-09-21

    申请号:US11378170

    申请日:2006-03-16

    IPC分类号: F01N3/00 F01N3/10

    摘要: A method for operating an internal combustion engine, in whose exhaust region, in the direction of flow of the exhaust gas, there are situated a first broadband lambda sensor which makes available a first lambda signal, an NOx adsorption catalyst and a second broadband lambda sensor which makes available a second lambda signal, in which the NOx adsorption catalyst cyclically stores the NOx emissions of the internal combustion engine, and is regenerated within the scope of a nominal regeneration by the operation of the internal combustion engine using a rich/stoichiometric air/fuel mixture, and a device for carrying out the method are provided. An intensified regeneration, compared to a nominal regeneration, of the NOx adsorption catalyst is undertaken, which supports a better setting of the thermodynamic equilibrium in the exhaust gas compared to the nominal regeneration. At the end of the intensified regeneration, at a still rich/stoichiometric air/fuel mixture, a plausibility check/correction of the first lambda signal using the second lambda signal is provided.

    摘要翻译: 一种在其排气区域内沿着废气流动的方向操作内燃机的方法,其中设置有第一宽带λ传感器,其使得可获得第一λ信号,NOx吸附催化剂和第二宽带λ传感器 其提供第二λ信号,其中NOx吸附催化剂循环地存储内燃机的NOx排放物,并且通过使用富/化学计量空气/燃料的内燃机的操作在额定再生的范围内再生, 燃料混合物和用于实施该方法的装置。 进行与NOx吸附催化剂的标称再生相比的强化再生,其与标称再生相比,支持排气中的热力学平衡的更好的设定。 在强化再生结束时,在仍然富/化学计量的空气/燃料混合物中,提供使用第二λ信号的第一λ信号的合理性检查/校正。

    Gas sensor
    9.
    发明授权
    Gas sensor 失效
    气体传感器

    公开(公告)号:US06936149B2

    公开(公告)日:2005-08-30

    申请号:US10114000

    申请日:2002-04-01

    CPC分类号: G01N27/419

    摘要: A gas sensor for determining a physical quantity of a gas component, e.g., in an exhaust gas of an internal combustion engine, including a sensor element which contains at least one electrochemical cell. The electrochemical cell includes a first electrode and a second electrode that are arranged at a distance on at least one solid electrolyte, the second electrode is arranged in a reference gas space. A third electrode which is in contact with a gas located in the gas space is provided. The gas component may be exchanged between the gas space and the reference gas space using a voltage applied between the second electrode and the third electrode.

    摘要翻译: 一种气体传感器,用于确定例如在内燃机的废气中的气体成分的物理量,其包括含有至少一个电化学电池的传感器元件。 电化学电池包括在至少一个固体电解质上排列一定距离的第一电极和第二电极,第二电极布置在参考气体空间中。 提供了与位于气体空间中的气体接触的第三电极。 可以使用施加在第二电极和第三电极之间的电压在气体空间和参考气体空间之间交换气体成分。

    Gas sensor
    10.
    发明申请
    Gas sensor 审中-公开
    气体传感器

    公开(公告)号:US20050040040A1

    公开(公告)日:2005-02-24

    申请号:US10496719

    申请日:2002-10-02

    CPC分类号: G01N27/4071

    摘要: A gas-measuring sensor, preferably for verifying at least one physical variable of a gas, in particular for verifying the oxygen concentration in an exhaust gas of an internal combustion engine, the sensor including a sensor element, which has an electrochemical cell having a first electrode and a second electrode and at least one solid electrolyte electrically connecting the first and the second electrode. The second electrode is provided in a reference-gas region containing a reference gas. The reference-gas region is arranged between the first and the second electrode.

    摘要翻译: 一种气体测量传感器,优选地用于验证气体的至少一个物理变量,特别是用于验证内燃机的排气中的氧浓度,所述传感器包括传感器元件,所述传感器元件具有电化学电池,所述电化学电池具有第一 电极和第二电极以及电连接第一和第二电极的至少一个固体电解质。 第二电极设置在包含参考气体的参考气体区域中。 参考气体区域布置在第一和第二电极之间。