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    Device for judging reducing agent injection condition in exhaust emission control system
    5.
    发明专利
    Device for judging reducing agent injection condition in exhaust emission control system 审中-公开
    废气排放控制系统中评估减排剂注射条件的设备

    公开(公告)号：JP2006250117A

    公开(公告)日：2006-09-21

    申请号：JP2005071007

    申请日：2005-03-14

    申请人： Nissan Diesel Motor Co Ltd ,  日産ディーゼル工業株式会社

    发明人： HIRATA MASANOBU ,  MASAKI NOBUHIKO ,  YANO MASAKAZU

    IPC分类号： F01N3/18 ,  B01D53/94 ,  F01N3/04 ,  F01N3/08

    CPC分类号： F01N11/00 ,  B01D53/9431 ,  B01D2251/20 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2900/0418 ,  F01N2900/08 ,  F01N2900/102 ,  F01N2900/1812 ,  F01N2900/1814 ,  F01N2900/1824 ,  Y02C20/10 ,  Y02T10/47

    摘要： PROBLEM TO BE SOLVED: To prevent emission increase of NOx by monitoring whether or not the necessary amount of a liquid reducing agent is correctly injected and supplied.
    SOLUTION: A liquid level L0 in a reducing agent tank is measured when a key switch is turned on (S1) and a travel distance D1 after the turning-on of the key switch is measured from a travel distance odometer (S2). It is judged whether or not the travel distance D1 becomes equal to or larger than a predetermined travel distance D0 (S3) and when it becomes equal to or larger than the predetermined travel distance D0, a liquid level L1 in the reducing agent tank is checked (S4). It is judged whether or not a consumption of urea aqueous solution ▵L measured from a variation of the liquid level (L0-L1) is within a predetermined range (Lmin ≤ ▵L ≤ Lmax) (S5). Abnormality in injection of the urea aqueous solution is judged when the consumption of urea aqueous solution is not within the predetermined range and abnormality judgment output is generated and notified to occupants (S6).
    COPYRIGHT: (C)2006,JPO&NCIPI

    摘要翻译： 要解决的问题：通过监测是否正确注入和供应所需量的液体还原剂来防止NOx的排放增加。 解决方案：当钥匙开关打开时，测量还原剂箱中的液面L0（S1），并且从行驶距离里程表（S2）测量钥匙开关接通后的行驶距离D1， 。 判断行驶距离D1是否等于或大于预定行驶距离D0（S3），并且当其等于或大于预定行驶距离D0时，检查还原剂箱中的液面L1 （S4）。 判断从液面（L0-L1）的变化量测定的尿素水溶液的消耗量是否处于规定范围（Lmin≤▵L≤Lmax）以内（S5）。 当尿素水溶液的消耗不在预定范围内并且产生异常判定输出并通知居住者时，判断注射尿素水溶液的异常（S6）。 版权所有（C）2006，JPO＆NCIPI

    Exhaust gas postprocessing system and control method thereof
    10.
    发明专利
    Exhaust gas postprocessing system and control method thereof 有权
    排气加气系统及其控制方法

    公开(公告)号：JP2012017731A

    公开(公告)日：2012-01-26

    申请号：JP2010256203

    申请日：2010-11-16

    申请人： Hyundai Motor Co Ltd ,  Kia Motors Corp ,  現代自動車株式会社 ,  起亞自動車株式会社

    发明人： LEE JIN HA

    IPC分类号： F01N3/20 ,  B01D53/94 ,  F01N3/023 ,  F01N3/035 ,  F01N3/18 ,  F01N3/24 ,  F02D45/00

    CPC分类号： F01N3/0885 ,  F01N3/021 ,  F01N3/0842 ,  F01N11/00 ,  F01N13/009 ,  F01N2240/30 ,  F01N2550/05 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/10 ,  F01N2900/102 ,  F01N2900/1602 ,  F01N2900/1806 ,  Y02T10/47

    摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas postprocessing system and a control method thereof.SOLUTION: The exhaust gas postprocessing control method includes the steps of: performing desulfurization regeneration by raising the temperature of a catalyst to a preset vale when a temperature difference (ΔT) between the front and rear ends of the catalyst in injecting a reducing agent is a reference temperature difference (X) or less; determining whether fuel has been replenished after desulfurization regeneration; determining whether an operation distance, fuel consumption or an operation time after desulfurization regeneration have exceeded a reference value; and determining that high sulfur fuel has been injected when the ΔT in injecting the reducing agent is X or less while determining that the fuel has been replenished without exceeding a reference value in the operation distance, the fuel consumption or the operation time after desulfurization regeneration. The exhaust gas postprocessing system includes a catalyst, a detecting part and a control part for executing a program for regenerating the catalyst according to a state of a vehicle detected by the detecting part.

    摘要翻译： 要解决的问题：提供废气后处理系统及其控制方法。 解决方案：废气后处理控制方法包括以下步骤：当在注入还原剂时催化剂的前端和后端之间的温差（ΔT）升高催化剂的温度至预定值，进行脱硫再生 试剂是参考温差（X）以下; 确定在脱硫再生后是否补充燃料; 确定脱硫再生之后的操作距离，燃料消耗或操作时间是否超过参考值; 并且当在注入还原剂中的ΔT时确定已经注入了高硫燃料，同时确定燃料已被补充而不超过操作距离，燃料消耗或脱硫再生后的操作时间的参考值。 废气后处理系统包括催化剂，检测部和控制部，用于根据由检测部检测到的车辆的状态执行用于再生催化剂的程序。 版权所有（C）2012，JPO＆INPIT