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    Emission control system and method for internal combustion engine
    3.
    发明公开
    Emission control system and method for internal combustion engine 有权
    Abgasemissionssteuerung系统和VerfahrenfürVerbrennungsmotoren

    公开(公告)号：EP1176298A3

    公开(公告)日：2004-05-12

    申请号：EP01117203.8

    申请日：2001-07-16

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Kobayashi, Masaaki ,  Matsushita, Souichi ,  Tsukasaki, Yukihiro ,  Matsuoka, Hiroki ,  Hayashi, Kotaro ,  Ishiyama, Shinobu ,  Ohtsubo, Yasuhiko ,  Magarida, Naofumi ,  Shibata, Daisuke ,  Negami, Akihiko ,  Oda, Tomihisa ,  Harada, Yasuo ,  Ono, Tomoyuki

    IPC分类号： F02D41/02 ,  F01N3/08 ,  F02D41/40

    CPC分类号： F01N3/0842 ,  F01N3/023 ,  F01N3/0253 ,  F01N3/0821 ,  F01N3/0885 ,  F01N2430/06 ,  F01N2570/16 ,  F02D41/024 ,  F02D41/028 ,  F02D41/029 ,  F02D41/405 ,  Y02T10/26 ,  Y02T10/44

    摘要： An emission control system for an internal combustion engine (1) is provided with a catalyst (4) disposed in an exhaust passage (3) of the internal combustion engine (1) for purifying an exhaust gas that enters the catalyst (4); engine operating state detecting means (15) for detecting an engine operating state of the internal combustion engine (1); catalyst temperature raising means capable of raising a temperature of the catalyst (4) in a plurality of modes; and selecting means (11) for selecting one mode from the plurality of modes based on a value detected by the engine operating state detecting means such that the catalyst temperature is raised. When the internal combustion engine is in a low load state, the catalyst temperature raising means raises the temperature of the catalyst in a first mode selected from the plurality of modes, by increasing an amount of a main fuel injected into the internal combustion engine (1) so as to make an air/fuel ratio closer to a stoichiometric value, and by adding a fuel into the exhaust passage (3). When the internal combustion engine is in an intermediate load state, the catalyst temperature raising means raises the temperature of the catalyst in a second mode selected from the plurality of modes, by injecting an additional fuel after injecting the main fuel into the internal combustion engine (1), and by adding the fuel into the exhaust passage (3). When the internal combustion engine is in a high load state, the catalyst temperature raising means raises the catalyst temperature in a third mode selected from the plurality of modes, by adding the fuel into the exhaust passage (3).

    摘要翻译： 一种用于内燃机（1）的排放物控制系统设置有设置在内燃机（1）的排气通道（3）中的用于净化进入催化剂（4）的废气的催化剂（4）; 用于检测内燃机（1）的发动机运转状态的发动机运转状态检测机构（15）。 能够以多种模式提高催化剂（4）的温度的催化剂升温装置; 以及选择装置（11），用于基于由发动机操作状态检测装置检测的值从多个模式中选择一个模式，使得催化剂温度升高。 当内燃机处于低负载状态时，催化剂升温装置通过增加喷射到内燃机（1）中的主燃料的量，使催化剂的温度从多个模式中选出的第一模式升高 ），使得空气/燃料比接近化学计量值，并且通过在排气通道（3）中添加燃料。 当内燃机处于中间负载状态时，催化剂升温装置通过在将主燃料喷射到内燃机中之后注入附加燃料而使多个模式中选择的第二模式的催化剂的温度上升（ 1），并且通过将燃料添加到排气通道（3）中。 当内燃机处于高负载状态时，通过将燃料添加到排气通路（3）中，催化剂升温装置将从多个模式中选出的第三模式的催化剂温度升高。

    A fuel injection system for an internal combustion engine
    4.
    发明公开
    A fuel injection system for an internal combustion engine 失效
    一种用于内燃机的燃料喷射系统

    公开(公告)号：EP0860601A3

    公开(公告)日：2000-01-19

    申请号：EP98102970.5

    申请日：1998-02-20

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Murakami, Motoichi ,  Oda, Tomihisa ,  Hokazono, Yuichi

    IPC分类号： F02D41/38 ,  F02D41/24

    CPC分类号： F02D41/221 ,  F02D41/3827 ,  F02D2041/224 ,  F02D2200/0604 ,  F02D2200/0606

    摘要： In the fuel injection system, fuel is supplied to a common rail from a high pressure fuel pump, and injected into the cylinders of an engine, from the common rail, via fuel injection valves. An electronic control unit (ECU) of the engine controls the pressure in the common rail at a value determined by the operating conditions of the engine. The ECU further detects the pressure and the temperature of the fuel in the common rail, and determines the bulk modulus of elasticity of the fuel based on the pressure and the temperature of the fuel. The ECU calculates an estimated value of the pressure change in the common rail during the fuel injection period using the determined bulk modulus. If the difference between the estimated value of the pressure change and the pressure change actually measured during the fuel injection period is large, the ECU determines that the fuel injection system has failed. Since the estimated value of the pressure change is calculated based on the bulk modulus of elasticity which is determined in accordance with the actual pressure and temperature of the fuel, the accurate estimated value is obtained even if the pressure and the temperature of the fuel in the common rail change over a very wide range.

    摘要翻译： 在燃料喷射系统中，燃料从高压燃料泵供应到共轨，并且从共轨经由燃料喷射阀喷射到发动机的汽缸中。 发动机的电子控制单元（ECU）将共轨中的压力控制在由发动机的运行条件确定的值。 ECU进一步检测共轨中的燃料的压力和温度，并且基于燃料的压力和温度确定燃料的体积弹性模量。 ECU使用所确定的体积弹性模量来计算燃料喷射期间中共轨中的压力变化的估计值。 如果在燃料喷射期间实际测量的压力变化的估计值与实际测量的压力变化之间的差异大，则ECU确定燃料喷射系统已经失效。 由于基于根据燃料的实际压力和温度确定的弹性体积弹性模量来计算压力变化的估计值，所以即使燃料的压力和温度 共轨改变的范围非常广泛。

    A device for purifying the exhaust gas of an internal combustion engine
    6.
    发明公开
    A device for purifying the exhaust gas of an internal combustion engine 有权
    Eine Einheitfürdas Reinigen des Abgases eines Verbrennungsmotors

    公开(公告)号：EP1116868A3

    公开(公告)日：2004-06-30

    申请号：EP01100582.4

    申请日：2001-01-10

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Ono, Tomoyuki ,  Oda, Tomihisa

    IPC分类号： F01N9/00 ,  F02D41/02 ,  F02D41/12

    CPC分类号： F02D41/0055 ,  F02B29/0406 ,  F02D41/0002 ,  F02D41/0235 ,  F02D41/029 ,  F02D41/123 ,  F02D41/18 ,  F02D2041/0017 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/10 ,  F02M26/15 ,  F02M26/23 ,  F02M26/33 ,  F02M26/50 ,  Y02T10/42 ,  Y02T10/47

    摘要： A device for purifying the exhaust gas of an internal combustion engine is disclosed. The device comprises a particulate trap disposed in the engine exhaust system, an exhaust gas recirculation passage communicating the upstream of the particulate trap in the engine exhaust system with the engine intake system, a control valve for controlling the amount of exhaust gas recirculated through the exhaust gas recirculation passage to be an optimum amount in accordance with an engine operating condition. In the device, an amount of the fresh air introduced into the engine intake system during a fuel-cut is detected, and an amount of particulate trapped by the particulate trap is estimated on the basis of the amount of fresh air detected after the control valve is opened to a predetermined opening degree.

    摘要翻译： 公开了一种用于净化内燃机的废气的装置。 该装置包括设置在发动机排气系统中的颗粒捕集器，将发动机排气系统中的颗粒捕集器的上游与发动机进气系统连通的排气再循环通道，用于控制通过排气再循环的废气量的控制阀 气体再循环通道根据发动机工作条件成为最佳量。 在该装置中，检测在燃料切断期间引入发动机进气系统的新鲜空气的量，并且基于在控制阀之后检测到的新鲜空气量来估计由颗粒捕集器捕获的颗粒的量 被打开到预定的开度。

    A device for purifying the exhaust gas of an internal combustion engine
    10.
    发明公开
    A device for purifying the exhaust gas of an internal combustion engine 有权
    Einheit zum Reinigen des Abgases eines Verbrennungsmotors

    公开(公告)号：EP1116868A2

    公开(公告)日：2001-07-18

    申请号：EP01100582.4

    申请日：2001-01-10

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Ono, Tomoyuki ,  Oda, Tomihisa

    IPC分类号： F02D21/08 ,  F02D41/02 ,  F02D33/02

    CPC分类号： F02D41/0055 ,  F02B29/0406 ,  F02D41/0002 ,  F02D41/0235 ,  F02D41/029 ,  F02D41/123 ,  F02D41/18 ,  F02D2041/0017 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/10 ,  F02M26/15 ,  F02M26/23 ,  F02M26/33 ,  F02M26/50 ,  Y02T10/42 ,  Y02T10/47

    摘要： A device for purifying the exhaust gas of an internal combustion engine is disclosed. The device comprises a particulate trap disposed in the engine exhaust system, an exhaust gas recirculation passage communicating the upstream of the particulate trap in the engine exhaust system with the engine intake system, a control valve for controlling the amount of exhaust gas recirculated through the exhaust gas recirculation passage to be an optimum amount in accordance with an engine operating condition. In the device, an amount of the fresh air introduced into the engine intake system during a fuel-cut is detected, and an amount of particulate trapped by the particulate trap is estimated on the basis of the amount of fresh air detected after the control valve is opened to a predetermined opening degree.

    摘要翻译： 公开了一种用于净化内燃机的废气的装置。 该装置包括设置在发动机排气系统中的颗粒捕集器，将发动机排气系统中的颗粒捕集器的上游与发动机进气系统连通的排气再循环通道，用于控制通过排气再循环的废气量的控制阀 气体再循环通道根据发动机工作条件成为最佳量。 在该装置中，检测在燃料切断期间引入发动机进气系统的新鲜空气的量，并且基于在控制阀之后检测到的新鲜空气量来估计由颗粒捕集器捕获的颗粒的量 被打开到预定的开度。