Method and device for controlling the injection of reducing agent
    1.
    发明申请
    Method and device for controlling the injection of reducing agent 有权
    用于控制还原剂注入的方法和装置

    公开(公告)号:US20070125071A1

    公开(公告)日:2007-06-07

    申请号:US10586552

    申请日:2004-12-22

    申请人: Bjorn Westerberg

    发明人: Bjorn Westerberg

    IPC分类号: F01N3/00 F01N3/10

    摘要: The invention relates to a method and device (10) for controlling the injection of reducing agent upstream from a catalyst (4) in an exhaust line (2) from a combustion engine. According to the invention, the injection of reducing agent in the exhaust line is controlled on the basis of result of comparison between a calculated accumulation actual value (A1) and a calculated accumulation setpoint value (A2). The invention also relates to a computer program comprising program code for implementing said method, a computer program product comprising a medium which is readable by an electronic control unit and has stored on it a computer program intended to cause an electronic control unit to implement said method, and an electronic control unit.

    摘要翻译: 本发明涉及一种用于控制从内燃机排出管线(2)中的催化剂(4)向上游注入还原剂的方法和装置(10)。 根据本发明,基于计算累积实际值(A 1)和计算出的累积设定值(A 2)之间的比较结果来控制排气管线中的还原剂的注入。 本发明还涉及包括用于实现所述方法的程序代码的计算机程序,包括由电子控制单元可读的介质的计算机程序产品,并且在其上存储有旨在使电子控制单元实现所述方法的计算机程序 ,以及电子控制单元。

    Arrangement For Supplying A Medium Into An Exhaust Gas Conduit In An Internal Combustion Engine
    3.
    发明申请
    Arrangement For Supplying A Medium Into An Exhaust Gas Conduit In An Internal Combustion Engine 有权
    在内燃机中向排气管供给介质的布置

    公开(公告)号:US20080092526A1

    公开(公告)日:2008-04-24

    申请号:US11573324

    申请日:2005-04-22

    IPC分类号: F01N3/20

    摘要: An arrangement for supplying a medium to an exhaust line of a combustion engine. The arrangement comprises a first exhaust passage defined by at least a first wall surface of an element, and a dosing device supplying the medium to the first exhaust passage. The arrangement is adapted to maintaining a degree of heating of the first wall surface so that the latter will be at a higher temperature than the medium's vaporization point when the liquid medium is supplied in the first exhaust passage. Therefore, even the medium which reaches the first wall surface will vaporize in the first exhaust passage.

    摘要翻译: 用于向内燃机的排气管线供给介质的装置。 该装置包括由元件的至少第一壁表面限定的第一排气通道和将介质供应到第一排气通道的计量装置。 该配置适于保持第一壁表面的加热程度,使得当在第一排气通道中供应液体介质时,第一壁表面的温度将高于介质的蒸发点的温度。 因此,即使到达第一壁面的介质也会在第一排气通路中蒸发。

    Method and device for monitoring of a catalyst
    5.
    发明申请
    Method and device for monitoring of a catalyst 审中-公开
    用于监测催化剂的方法和装置

    公开(公告)号:US20070010020A1

    公开(公告)日:2007-01-11

    申请号:US10558614

    申请日:2004-06-04

    IPC分类号: G01N31/10

    摘要: A method and a device for monitoring the functioning of an SCR catalyst in the exhaust line of a combustion engine, whereby a temperature value representing the temperature of exhaust gases flowing out of the SCR catalyst is calculated by use of a calculation model and is compared with a temperature value measured in the exhaust line downstream from the SCR catalyst. A computer program comprising program codes for implementation of the method, a medium readable by computer and having stored on it a computer program which is intended to enable a computer to implement said method, and an electronic control unit.

    摘要翻译: 一种用于监测内燃机排气管线中的SCR催化剂的功能的方法和装置,其中通过使用计算模型计算表示从SCR催化剂流出的废气的温度的温度值,并将其与 在SCR催化剂下游的排气管线中测量的温度值。 一种计算机程序,包括用于实现该方法的程序代码,可由计算机读取的介质,并且存储有旨在使计算机实现所述方法的计算机程序和电子控制单元。