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36 条记录 (耗时 0.018 秒)

    Catalyst control apparatus for internal combustion engine and method for performing catalyst control
    12.
    发明公开
    Catalyst control apparatus for internal combustion engine and method for performing catalyst control 有权
    内燃发动机和方法的催化剂的一种控制系统，用于控制所述催化剂

    公开(公告)号：EP1536121A1

    公开(公告)日：2005-06-01

    申请号：EP04027791.5

    申请日：2004-11-23

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Kobayashi, Masaaki ,  Yamaguchi, Masaaki

    IPC分类号： F02D41/14 ,  F01N3/08

    CPC分类号： F02D41/2454 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0885 ,  F02D41/0235 ,  F02D41/0275 ,  F02D41/1454 ,  F02D41/405 ,  F02D2200/0802

    摘要： A degree of deviation between an actual air-fuel ratio and a value detected by an air-fuel ratio sensor is obtained as a difference dTHC between a target catalyst bed temperature THCt and a catalyst bed temperature THC (S118). The difference dTHC is converted to a target air-fuel ratio correction amount daft according to a target air-fuel ratio correction amount map Mapaft (S120). A target air-fuel ratio AFt is corrected using the target air-fuel ratio correction amount daft (S122), whereby the degree of deviation between the actual air-fuel ratio and the value detected by the air-fuel ratio sensor is reflected in an air-fuel ratio feedback control. Thus, even if there is a difference between the actual air-fuel ratio and a detected air-fuel ratio AF, the air-fuel ratio feedback control can be appropriately performed, and a catalyst control can be appropriately performed. Accordingly, it is possible to prevent a situation in which the catalyst cannot sufficiently recover from sulfur poisoning, or a situation in which smoke and hydrogen sulfide (H 2 S) are discharged.

    摘要翻译： 偏差的实际空气燃料比，并通过在空气燃料比传感器的检测值之间的程度，获得作为目标DTHC催化剂床温度THCt和一个催化剂床层温度THC（S118）之间的差值。 差DTHC被转换为目标空燃比校正量愚蠢gemäß到目标空燃比修正量映射Mapaft（S120）。 目标空气燃料比钙矾使用疯狂地（S122）的目标空气燃料比修正量，由此，实际的空气 - 燃料比和空气燃料比传感器的检测值之间的偏差度在体现在校正 空气燃料比反馈控制。 因此，即使有实际的空气 - 燃料比和检测到的空燃比AF之间的差时，空气 - 燃料比反馈控制能够适当地进行，并且催化剂控制能够适当地进行。 因此，能够防止一种情况，其中催化剂不能充分地从硫中毒恢复，或其中的烟雾和硫化氢（H 2 S）被排出的情况。

    Fuel injection control device for a diesel engine
    14.
    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 and method for diagnosing reducing-agent supplying device in internal combustion engine
    15.
    发明公开
    Apparatus and method for diagnosing reducing-agent supplying device in internal combustion engine 有权
    装置和方法用于诊断内燃机的还原剂供给装置

    公开(公告)号：EP1176295A3

    公开(公告)日：2003-05-07

    申请号：EP01117850.6

    申请日：2001-07-23

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Matsuoka, Hiroki ,  Kobayashi, Masaaki ,  Ishiyama, Shinobu ,  Magarida, Naofumi ,  Tahara, Jun ,  Negami, Akihiro

    IPC分类号： F01N11/00 ,  F01N3/20 ,  F01N3/36 ,  F02D41/14 ,  F02D41/22 ,  F02B77/08

    CPC分类号： F01N3/0814 ,  F01N3/0842 ,  F01N11/00 ,  F01N2550/05 ,  F01N2550/06 ,  F01N2610/03 ,  F02B29/0406 ,  F02B37/00 ,  F02M26/05 ,  F02M26/21 ,  F02M26/23 ,  Y02T10/47

    摘要： Fuel supply system (10) of engine (1) includes a fuel supply pump (11), a common rail (12), fuel injector valves (13), and a cut-off valve (14), and a reducing-agent supplying device which includes a metering valve (16), a fuel introducing nozzle (17) and a secondary fuel supply passage (P2) and which is arranged to introduce a fuel as a reducing agent into an exhaust system (40) of the engine under the control of an electronic engine control unit (80), which control the application of an electric current to the metering valve. The engine control unit constitutes a part of a diagnosing apparatus arranged to diagnose the reducing-agent supplying device, on the basis of a change of an air/fuel ratio (A/F) of an exhaust emission from the engine, which air/fuel ratio is continuously detected during the period of introduction of the fuel into the exhaust system.

    摘要翻译： 发动机的燃料供应系统（10）（1）包括：燃料供给泵（11），共轨（12）中，燃料喷射阀（13），和一个截止阀（14），和一个还原剂供给 装置，其包括被设置为将燃料作为还原剂进入到下所述发动机的排气系统（40）的计量阀（16），燃料导入喷嘴（17）和一个次级燃料供给通道（P2）和所有 其中控制电流的所述计量阀的应用的电子发动机控制单元（80）的控制。 发动机控制单元构成布置成诊断还原剂供给装置，废气排放来自发动机，其中空气/燃料的空气/燃料比（A / F）的变化的基础上，一个诊断装置的一部分 期间连续引入燃料到排气系统的的周期检测到的比率。

    Abnormality determination device for engine system
    19.
    发明公开
    Abnormality determination device for engine system 审中-公开
    Vorrichtung zur Fehlerbestimmung einer Brennkraftmaschine

    公开(公告)号：EP1548260A2

    公开(公告)日：2005-06-29

    申请号：EP04024552.4

    申请日：2004-10-14

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： Kobayashi, Masaaki ,  Tsuzuki, Naoyuki ,  Yamaguchi, Masaaki

    IPC分类号： F02D41/22 ,  F02D23/00 ,  F02B37/00 ,  F02B29/04 ,  F02B77/08

    CPC分类号： F02B37/24 ,  F02B29/0493 ,  F02B39/16 ,  F02D41/0007 ,  F02D41/22 ,  F02D2041/227 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0416 ,  Y02T10/144 ,  Y02T10/146

    摘要： An ECU carries out a program including the step (S100) of detecting a discharge air temperature TC and obtaining an estimated discharge air temperature TC(X) using an estimated discharge air temperature map, the step (S400) of setting a turbo abnormality determination flag when the discharge air temperature TC is higher than the estimated discharge air temperature TC(X) (YES in S300), the step (S500) of detecting an intake air temperature TIM, the step (S600) of calculating cooling efficiency of an intercooler from the discharge air temperature TC and the intake air temperature TIM, and the step (S800) of setting an intercooler abnormality determination flag when the cooling efficiency of the intercooler is decreased (YES in S700).

    摘要翻译： ECU执行包括检测排出空气温度TC的步骤（S100）并使用估计的排出空气温度图获得估计排出空气温度TC（X）的程序，设置涡轮异常判定标志的步骤（S400） 当排气温度TC高于估计排气温度TC（X）时（S300中为“是”），检测进气温度TIM的步骤（S500），计算中间冷却器的冷却效率的步骤（S600） 排气温度TC和进气温度TIM以及当中间冷却器的冷却效率降低时设定中间冷却器异常判定标志的步骤（S800）（S700中为是）。