PURGE PHASE CONTROL STRATEGY FOR A SELECTED CATALYTIC REDUCTION SYSTEM
    1.
    发明申请
    PURGE PHASE CONTROL STRATEGY FOR A SELECTED CATALYTIC REDUCTION SYSTEM 审中-公开
    选择性催化还原系统的相位控制策略

    公开(公告)号:US20130032214A1

    公开(公告)日:2013-02-07

    申请号:US13640423

    申请日:2011-03-21

    IPC分类号: F01N3/20

    摘要: The method according to the invention is a method for controlling the purging of a sélective catalytic réduction System (1) for a vehicle. The sélective catalytic réduction System (1) has a pump (4) for reducing agent (3), at least one supply line (5) supplying reducing agent (3) to an exhaust line (10) of the vehicle, and a purge fluid suction device. The method is characterized in that it involves determining a purge duration as a fonction of a state of fill of the supply line (5) prior to activation of the purge phase, and in that the method forther comprises the updating of the purge duration during purging.

    摘要翻译: 根据本发明的方法是用于控制用于车辆的选择性催化转化系统(1)的清洗的方法。 选择性催化裂化系统(1)具有用于还原剂(3)的泵(4),向车辆的排气管线(10)供应还原剂(3)的至少一个供应管线(5)和清洗流体 抽吸装置。 该方法的特征在于,其包括在吹扫阶段激活之前确定吹扫持续时间作为供应管线(5)的填充状态的方式,并且所述方法包括在清洗期间更新吹扫持续时间 。