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    Fuel injection control device for a diesel engine
    4.
    发明公开
    Fuel injection control device for a diesel engine 审中-公开
    Kraftstoffeinspritzungssteuerungssystemfüreinen Dieselmotor

    公开(公告)号：EP1344922A2

    公开(公告)日：2003-09-17

    申请号：EP03005527.1

    申请日：2003-03-11

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Ishiyama, Shinobu ,  Ohki, Hisashi ,  Hayashi, Kotaro ,  Magarida, Naofumi ,  Kobayashi, Masaaki ,  Shibata, Daisuke ,  Ohba, Takahiro ,  Negami, Akihiko

    IPC分类号： F02D41/38 ,  F02D41/40

    CPC分类号： F02D41/402 ,  F02D41/0007 ,  F02D41/38 ,  F02D41/403 ,  Y02T10/44

    摘要： Provided is a fuel injection control device which secures stability of a combustion state, and simultaneously optimizes exhaust gas characteristics for a diesel engine with a low compression ratio. The fuel injection control device for a diesel engine with a low compression ratio refers to a control map having four predetermined areas determined by a operation state of the engine, and then, selectively employs different types of fuel injection patterns accompanied by as many as twice of pilot injections. The fuel injection control device maximizes the number of conducting the pilot injections so as to prioritize restraining the combustion noise and optimizing exhaust gas characteristics when the operation states of an engine is in an area II where freedom of setting ranges for the timing of conducting the pilot injection and the main injection, and the interval of conducting the individual injections is relatively high (a low load/low rotation speed area).

    摘要翻译： 提供了一种确保燃烧状态的稳定性的燃料喷射控制装置，并且同时优化具有低压缩比的柴油发动机的排气特性。 具有低压缩比的柴油发动机的燃料喷射控制装置是指具有由发动机的运行状态确定的四个预定区域的控制图，然后选择性地使用伴随有多达两倍的燃料喷射模式 飞行员注射。 燃料喷射控制装置使进行引燃喷射的次数最大化，以便当发动机的操作状态在进行导向的定时的设定范围的自由度的区域II中时，优先考虑抑制燃烧噪声和优化排气特性 喷射和主喷射，并且进行各个喷射的间隔相对较高（低负载/低转速区域）。

    APPARATUS FOR DETECTING DETERIORATION OF A NOX SELECTIVE REDUCTION CATALYST
    6.
    发明公开
    APPARATUS FOR DETECTING DETERIORATION OF A NOX SELECTIVE REDUCTION CATALYST 有权
    用于检测催化剂的磨损为氮氧化物的选择性还原的装置

    公开(公告)号：EP2896801A1

    公开(公告)日：2015-07-22

    申请号：EP14199675.1

    申请日：2011-04-12

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： Hagimoto, Taiga ,  Shibata, Daisuke

    IPC分类号： F01N3/08 ,  F01N3/20 ,  F01N11/00 ,  G01N31/10

    CPC分类号： G01N31/10 ,  F01N3/206 ,  F01N3/2066 ,  F01N11/00 ,  F01N11/002 ,  F01N2550/02 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/1602 ,  F01N2900/1621 ,  Y02T10/24 ,  Y02T10/47

    摘要： An object of the invention is to detect deterioration of an NOx selective reduction catalyst provided in an exhaust passage of an internal combustion engine with improved accuracy. An apparatus for detecting deterioration of NOx selective reduction catalyst according to the invention has an NOx purification rate calculation unit. A determination as to whether the NOx selective reduction catalyst is deteriorated is made if the temperature of said NOx selective reduction catalyst (Tc) at which the NOx purification rate starts to decrease with a rise in the temperature of said NOx selective reduction catalyst is lower than a predetermined criterion temperature (Tc0).

    摘要翻译： 本发明的一个目的是检测在具有改进的精度的内燃发动机的排气通道中设置在选择还原型NOx催化剂的劣化。 用于检测选择还原型NOx催化剂的gemäß恶化本发明的装置具有NOx净化率计算单元。 甲判断是否选择还原型NOx催化剂劣化是由如果所述选择还原型NOx催化剂（TC）的在所述NOx净化率开始与在所述NO x选择还原催化剂的温度上升到降低温度是lowerthan 规定的温度标准（T C0）。