Exhaust gas purifying system for internal combustion engine
    1.
    发明公开
    Exhaust gas purifying system for internal combustion engine 审中-公开
    内燃机排气净化系统

    公开(公告)号:EP1450026A2

    公开(公告)日:2004-08-25

    申请号:EP04001381.5

    申请日:2004-01-22

    摘要: An exhaust gas purifying system for an automotive internal combustion engine (1). The exhaust gas purifying system comprises a particulate filter (13) disposed in an exhaust gas passageway (12) of the engine to collect particulate in exhaust gas flowing through the exhaust gas passageway (12). The collected particulate is burnt off to be removed by raising a temperature of exhaust gas in a condition in connection with the particulate filter (13). A plurality of devices (3,8,11,51) are provided for raising the temperature of exhaust gas to be introduced into the particulate filter (13) through the exhaust gas passageway (12) when the collected particulate is burned off to be removed. Additionally, a control unit (15) is configured to select at least one of the devices (3,8,11,51) in accordance with an engine operating region and preferentially operate the selected at least one of the devices (3,8,11,51) for raising the exhaust gas temperature.

    摘要翻译: 一种汽车内燃机的排气净化系统(1)。 废气净化系统包括设置在发动机的废气通道(12)中的微粒过滤器(13),以收集流过废气通道(12)的废气中的微粒。 通过在与颗粒过滤器(13)相关的条件下升高排气的温度,收集的颗粒被烧掉而被除去。 提供多个装置(3,8,11,51),用于当收集的颗粒被烧掉以去除时通过排气通道(12)提高将被引入颗粒过滤器(13)的排气的温度 。 此外,控制单元(15)被配置为根据发动机操作区域来选择至少一个设备(3,8,11,51),并且优选地操作所选择的至少一个设备(3,8, 11,51),用于提高排气温度。

    Exhaust gas purification system and method
    2.
    发明公开
    Exhaust gas purification system and method 有权
    Vorrichtung und Verfahren zur Abgasreinigung

    公开(公告)号:EP1437493A1

    公开(公告)日:2004-07-14

    申请号:EP04000275.0

    申请日:2004-01-08

    IPC分类号: F01N9/00 F01N3/023 F02D41/02

    摘要: An exhaust gas purification system includes a particulate filter (12), a sensor (33) that detects a filter differential pressure and a controller (21) that controls regeneration of the particulate filter (12). The controller (21) is programmed to execute a control for burning particulate accumulated on the particulate filter (12), determine whether regeneration of the particulate filter is completed, detect, in cooperation with the sensor (33), a filter differential pressure (ΔPdpf) immediately after it is determined that regeneration of the particulate filter (12) is completed, and estimate an ash accumulation amount (ASH) based on the detected filter differential pressure (ΔPdpf). An exhaust gas purification method is also provided.

    摘要翻译: 废气净化系统包括微粒过滤器,传感器和控制器。 过滤器位于发动机的排气通道中,并将废气中的颗粒捕集。 传感器检测微粒过滤器入口和出口之间的过滤器压差。 控制器控制微粒过滤器的再生。 废气净化系统包括微粒过滤器,传感器和控制器。 过滤器位于发动机的排气通道中,并将废气中的颗粒捕集。 传感器检测微粒过滤器入口和出口之间的过滤器压差。 控制器控制微粒过滤器的再生。 它被编程为执行用于燃烧颗粒过滤器上积聚的颗粒的控制,从而再生微粒过滤器,确定颗粒过滤器的再生是否完成,与传感器协调检测紧接其后的过滤器差压 完成微粒过滤器的再生,并且基于检测到的过滤器压差来估计灰分积累量。 还包括用于废气净化的独立权利要求,包括执行用于燃烧颗粒过滤器上的颗粒的控制,以便在确定颗粒过滤器的再生是确定颗粒过滤器的再生是否为 完成,并且基于检测到的过滤器压差来估计作为积累在微粒过滤器上的灰分量的灰分积累量。

    Regeneration apparatus and method for particulate filter applicable to engine exhaust gas purifying device
    3.
    发明公开
    Regeneration apparatus and method for particulate filter applicable to engine exhaust gas purifying device 有权
    装置和方法,用于再生的内燃机的排气净化装置的颗粒过滤器

    公开(公告)号:EP1437497A1

    公开(公告)日:2004-07-14

    申请号:EP04000174.5

    申请日:2004-01-07

    摘要: A regeneration apparatus and method for a particulate filter (12) that collects a particulate in exhaust gas of an internal combustion engine (1), a timing at which an accumulated particulate is combusted to regenerate the particulate filter is determined and a control is performed for a combustion of the particulate, during the control for the combustion of the particulate, a temperature of the engine exhaust gas is raised to a first target temperature set at a temperature equal to or higher than a criterion temperature which provides a criterion of whether the particulate is combusted to regenerate the particulate filter when the engine falls in a first driving region, and the engine exhaust gas temperature is raised to a second target temperature set at a temperature lower than the criterion temperature when the engine falls in a second driving region different from the first driving region.

    摘要翻译: 的再生装置包括:再生定时确定性采矿部做确定性地雷在积累的颗粒的哪个定时被燃烧以再生微粒过滤器,和再生模式控制部分确实执行对微粒的燃烧的控制。 再生模式控制部包括第一和第二废气升温区段。 的再生装置包括:再生定时确定性采矿部做确定性地雷在积累的颗粒的哪个定时被燃烧以再生微粒过滤器,和再生模式控制部分确实执行对微粒的燃烧的控制。 再生模式控制部包括第一和第二废气升温区段。 第一废气升温部提高了发动机排气到第一目标温度设定为比一个标准温度等于或更高的温度的温度并提供无论的标准没有微粒被燃烧以再生微粒过滤器,当发动机 如果在第一驱动区域。 第二废气升温部提高了发动机排气温度升高到第二目标温度设定为比基准温度低的温度下当发动机情况下,从第一驱动区域不同的第二驱动区域。 因此独立权利要求中包括了以下内容:颗粒过滤器(a)的再生,包括确定性采矿在积聚颗粒的哪一个定时燃烧以再生微粒过滤器,并且通过升高温度用于颗粒的燃烧进行控制 发动机排气气体到第一目标温度设定为比一个标准温度等于或更高的温度下,其提供的无论微粒燃烧以再生微粒过滤器时在第一驱动区,当发动机,并升起一个标准的 发动机排气气体温度升高到第二目标温度设定为比基准温度低的温度下当发动机情况下,从第一驱动区域不同的第二驱动区; 和(b)一种排气净化装置,其包括微粒过滤器,和再生装置。

    Exhaust gas purifying system of internal combustion engine
    4.
    发明公开
    Exhaust gas purifying system of internal combustion engine 有权
    Abgasreinigungssystemfüreine Brennkraftmachine

    公开(公告)号:EP1437486A1

    公开(公告)日:2004-07-14

    申请号:EP04000175.2

    申请日:2004-01-07

    IPC分类号: F01N3/021 F01N9/00 F02D41/02

    摘要: An exhaust gas purifying system (100,200) of a diesel engine (1) comprises a PM filter (12) installed in an exhaust passage line of the engine to collect particulate matter (PM) in the exhaust gas from the engine (1); a pressure difference sensor (17) for detecting a pressure difference between upstream and downstream portions of the PM filter (12); a control unit (13) which comprises a collected PM amount estimating section (S1 to S5) that estimates an amount of collected PM in the PM filter (12) based on the pressure difference; and a reactivation timing judging section that, based on the estimated amount of the collected PM, judges a reactivation time when the reactivation of the PM filter is needed; and a reactivation carrying out system that, upon judgment of the reactivation time, carries out a predetermined operation to increases the temperature of the PM filter thereby to burn the collected PM. The control unit (13) further comprises a dispersion condition judging section (S16) that judges a dispersion condition of the collected PM in the PM filter; and a correction section (S18,S19;S24,S25,S26) that corrects the estimated amount of the collected PM in accordance with the judged dispersion condition of the collected PM.

    摘要翻译: 一种排气净化系统,包括:控制单元,具有用于判断PM滤波器中的收集的颗粒物质(PM)的分散状态的色散条件判断部分,以及用于基于所判定的色散来校正所收集的PM的估计量的校正部分 收集的PM的条件。 排气净化系统包括安装在从内燃机延伸的排气通道管线中的PM过滤器。 PM过滤器在发动机的废气中收集PM。 压力差传感器检测PM过滤器的上游部分和下游部分之间的压力差。 控制单元包括收集的PM量估计部分,用于基于压力差估计PM滤波器中收集的PM的量;以及重新启动定时判断部分,用于基于需要PM滤波器的再激活来判断再激活时间,基于 估计收到的PM的数量。 再生激活执行系统,用于执行预定的操作,以在再次激活时间的判断下增加PM过滤器的温度,从而燃烧PM过滤器中收集的PM。 控制单元还包括色散条件判断部分,用于判断PM滤波器中所收集的PM的色散条件,以及校正部分,用于根据所收集的PM的判断色散条件校正所收集的PM的估计量。