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公开(公告)号：EP1985830A1
公开(公告)日：2008-10-29
申请号：EP08152828.3
申请日：2008-03-17
CPC分类号： B01D53/9495 , B01D53/9422 , B01D53/9431 , B01D53/944 , B01D53/9459 , B01D2257/404 , B01D2258/012 , B01D2259/4566 , F01N3/0821 , F01N3/0842 , F01N11/00 , F01N13/009 , F01N2550/03 , F01N2550/06 , F01N2550/14 , F01N2900/1606 , F02D41/1446 , F02D41/1467 , F02D2200/0812 , Y02T10/24 , Y02T10/47
摘要： A NOx trapping catalytic converter diagnostic apparatus basically has a particulate matter accumulation estimating component, a particulate matter accumulation detecting component and a deterioration determining component. The particulate matter accumulation estimating component is configured to estimate an estimated amount of particulate matter accumulated a particulate matter filter that is positioned downstream of a NOx trapping catalytic converter. The particulate matter accumulation detecting component is configured to detect a detected amount of particulate matter accumulated in the particulate matter filter. The deterioration determining component is configured to determine if deterioration of the NOx trapping catalytic converter has occurred based on the estimated amount of accumulated particulate matter and the detected amount of accumulated particulate matter without using a NOx sensor to determine if the NOx trapping catalytic converter has deteriorated.
摘要翻译： NOx捕集催化转化器诊断装置基本上具有颗粒物质积聚估计部件，颗粒物质积聚检测部件和劣化判定部件。 颗粒物质积累估计部件被配置为估计累积在NOx捕集催化转化器下游的颗粒物质过滤器的颗粒物质的估计量。 颗粒物积聚检测部件被配置为检测在颗粒物质过滤器中积聚的颗粒物质的检测量。 劣化判定部件被配置为基于所估计的累积颗粒物的量和所检测到的累积颗粒物的量而不使用NOx传感器来确定NOx捕集催化转化器的劣化是否已经发生，以确定NOx捕获催化转化器是否已经劣化 。
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公开(公告)号：EP1815125A1
公开(公告)日：2007-08-08
申请号：EP05793830.0
申请日：2005-10-07
IPC分类号： F02G5/02
CPC分类号： F01N5/02 , F01N11/002 , F01N2240/02 , F01N2550/06 , F02G5/02 , Y02T10/16 , Y02T10/166 , Y02T10/47
摘要： An ECU executes a program including the steps of: when a switching valve is controlled to be closed (YES at S1000), comparing exhaust gas's temperature, as detected, with a map value (S1100); if the exhaust gas's temperature is larger than the map value (YES at S1110), determining that the switching valve normally operates (S1300); and if the exhaust gas's temperature is smaller than the map value (NO at S1100), determining that the switching valve has abnormality.
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13.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
发明人： Sato, Masahiro , Iwaki, Yoshihisa , Ueno, Masaki , Akazaki, Shusuke , Haga, Takashi , Sato, Tadashi , Miyahara, Yasuyuki
CPC分类号： F01N3/0835 , F01N3/0878 , F01N11/00 , F01N2550/06 , F01N2560/028 , F02D41/1439 , F02D41/1441 , F02D41/222 , F02D2200/0418 , G01N33/007 , Y02T10/20 , Y02T10/40 , Y02T10/47
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。
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