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    FAILURE DETECTION APPARATUS FOR AN ELECTRICALLY HEATED CATALYST
    123.
    发明公开
    FAILURE DETECTION APPARATUS FOR AN ELECTRICALLY HEATED CATALYST 审中-公开
    FEHLERERKENNUNGSVORRICHTUNGFÜREINEN ELEKTRISCH BEHEIZBAREN KATALYSATOR

    公开(公告)号：EP2796683A1

    公开(公告)日：2014-10-29

    申请号：EP11878239.0

    申请日：2011-12-20

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： YOSHIOKA, Mamoru

    IPC分类号： F01N3/20

    CPC分类号： G01R31/006 ,  F01N3/2006 ,  F01N3/2013 ,  F01N3/2026 ,  F01N3/2853 ,  F01N9/00 ,  F01N11/00 ,  F01N2240/16 ,  F01N2330/06 ,  F01N2550/00 ,  F01N2550/22 ,  F01N2900/1628 ,  G01R31/1263 ,  Y02T10/26 ,  Y02T10/47

    摘要： The present invention is intended to detect insulation failure of an EHC. In the invention, a heat generation element of the EHC is electrically insulated by an insulating member. Then, a determination as to whether insulation failure has occured is made based on an insulation resistance value of the insulating member at the time when an amount of water absorption in the insulating member is smaller than a predetermined amount of water absorption and when an amount of PM deposition in the insulating member is smaller than a predetermined amount of PM deposition, a change in the insulation resistance value of the insulating member at the time when the amount of water absorption in the insulating member decreases from an amount equal to or larger than the predetermined amount of water absorption to an amount smaller than the predetermined amount of water absorption, and a change in the insulation resistance value of the insulating member at the time when the amount of PM deposition in the insulating member decreases from an amount equal to or larger than the predetermined amount of PM deposition to an amount smaller than the predetermined amount of PM deposition.

    摘要翻译： 本发明旨在检测EHC的绝缘故障。 在本发明中，EHC的发热元件由绝缘构件电绝缘。 然后，基于绝缘构件的绝缘电阻值，绝缘构件中的吸水量小于预定吸水量时，确定是否发生绝缘破坏，并且当 绝缘构件中的PM沉积小于预定量的PM沉积，当绝缘构件中的吸水量从等于或大于绝缘构件的量减少时绝缘构件的绝缘电阻值的变化 预定量的吸水量小于预定吸水量的量，以及当绝缘构件中的PM沉积量从等于或等于更大的量减小时绝缘构件的绝缘电阻值的变化 比预定量的PM沉积小于预定量的PM沉积量。

    METHOD FOR FAULT DETECTION IN AN EXHAUST SYSTEM
    125.
    发明公开
    METHOD FOR FAULT DETECTION IN AN EXHAUST SYSTEM 有权
    排气系统故障检测方法

    公开(公告)号：EP2681423A1

    公开(公告)日：2014-01-08

    申请号：EP12752564.0

    申请日：2012-02-27

    申请人： Scania CV AB

    发明人： STENLÅÅS, Ola

    IPC分类号： F01N11/00 ,  F01N3/025 ,  F01N3/20 ,  F01N3/035

    CPC分类号： F01N11/002 ,  F01N3/103 ,  F01N3/2066 ,  F01N11/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N2550/00 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/0416 ,  F01N2900/08 ,  F01N2900/1411 ,  F01N2900/16 ,  F01N2900/1621 ,  F01N2900/1812 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    摘要： Method for fault detection in an exhaust system (3). By analysis of the temperature increase in the exhaust gases which is generated by fuel injected by a fuel injection device (20) upstream of a fuel oxidation device (5), and by analysis of the NOx conversion which is generated by reducing agent injected by a reducing agent injection device (30) upstream of an SCR catalyst (7), the method determines whether there is in the exhaust system an exhaust mass flow error due to exhaust leakage in the exhaust line (4) upstream of the fuel and reducing agent injection points (8,13) or to incorrectly determined value for the mass flow of the exhaust gases which are received by the exhaust line from a combustion engine (1).

    摘要翻译： 排气系统故障检测方法（3）。 通过分析由燃料氧化装置（5）上游的燃料喷射装置（20）喷射的燃料产生的排气中的温度升高以及通过分析通过由燃料氧化装置（5）注入的还原剂产生的NOx转化 （7）上游的还原剂喷射装置（30），该方法确定在排气系统中是否存在由于排气管线（4）中的燃料和还原剂喷射上游的排气泄漏导致的排气质量流量误差 点（8,13）或由排气管线从内燃机（1）接收的排气的质量流量的错误确定值。

    ABGASREINIGUNGSSYSTEM MIT VERZÖGERTER MESSWERTERFASSUNG
    130.
    发明授权
    ABGASREINIGUNGSSYSTEM MIT VERZÖGERTER MESSWERTERFASSUNG 有权
    迟发数据采集排放控制

    公开(公告)号：EP1311747B1

    公开(公告)日：2004-03-24

    申请号：EP01955285.0

    申请日：2001-05-18

    申请人： Emitec Gesellschaft für Emissionstechnologie mbH

    发明人： BRÜCK, Rolf ,  MAUS, Wolfgang

    IPC分类号： F01N11/00 ,  F02D41/14

    CPC分类号： F02D41/1448 ,  F01N11/00 ,  F01N2550/00 ,  F01N2550/02 ,  F02D41/1441 ,  F02D41/1446 ,  F02D41/1481 ,  F02D2041/1431 ,  Y02T10/47

    摘要： The invention relates to a device and a method for determining the pollutant concentration of an exhaust gas at a first point (5) of an exhaust-gas system in an internal combustion engine (2). According to said method, a sensor (4) for determining the pollutant concentration is placed at a second point (6), downstream (3) of the first point (5) in the exhaust-gas system. Said sensor records a measured value, which is then transmitted to a chronological member (7), the latter (7) taking into consideration the time delay between a recording of a measured value at the first point (5) and a recording at the second point (6) and transmitting the measured value to a diagnostic unit (8), whereby said measured value is chronologically correlated with other, non-deferred measured values. Sensitive gas sensors can thus be placed at cooler points of the exhaust-gas system that are less exposed to vibration and can nevertheless determine the pollutant concentration at another point.