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    OPTIMIZED DISCRETE LEVEL SENSING SYSTEM FOR VEHICLE REDUCTANT RESERVOIR
    1.
    发明申请
    OPTIMIZED DISCRETE LEVEL SENSING SYSTEM FOR VEHICLE REDUCTANT RESERVOIR 审中-公开
    用于车辆减速机的优化离散水平传感系统

    公开(公告)号：US20100089037A1

    公开(公告)日：2010-04-15

    申请号：US12252184

    申请日：2008-10-15

    申请人： John Paul Bogema ,  Bret Alan Zimmerman ,  Michiel J. Van Nieuwstadt ,  Christopher Oberski ,  Furqan Zafar Shaikh ,  Kevin Layden

    发明人： John Paul Bogema ,  Bret Alan Zimmerman ,  Michiel J. Van Nieuwstadt ,  Christopher Oberski ,  Furqan Zafar Shaikh ,  Kevin Layden

    IPC分类号： F01N3/20 ,  F01N11/00

    CPC分类号： F01N3/2066 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/1406 ,  F01N2900/1622 ,  F01N2900/1814 ,  Y02A50/2325 ,  Y02T10/24

    摘要： An example emissions-control system of a vehicle includes a reservoir configured to contain a reductant solution, and an SCR device disposed in the exhaust system and configured to consume the reductant solution. The example emissions-control system further includes a base sensor responsive to whether a volume of the reductant solution exceeds a base volume, wherein the base volume is a sum of a dead volume of the reservoir plus a standard volume, and one or more elevated sensors corresponding to one or more elevated volumes. The example emissions-control system further includes an emissions sensor responsive to a NOX level in the exhaust system, and a misformulation indicator operatively coupled to the emissions sensor and to at least one of the base sensor and an elevated sensor, and configured to indicate when an excess NOX emission follows, within an interval, an increase in the volume of the reductant solution above the base volume or an elevated volume. The example emissions-control system may further include an insufficiency indicator operatively coupled to the base volume sensor and configured to indicate when the volume of the reductant solution becomes less than the base volume.

    摘要翻译： 车辆的示例性排放控制系统包括构造成容纳还原剂溶液的储存器和设置在排气系统中并被配置为消耗还原剂溶液的SCR装置。 示例性排放物控制系统还包括响应于还原剂溶液的体积是否超过基础体积的基础传感器，其中基本体积是储存器的死体积与标准体积的总和以及一个或多个升高的​​传感器 对应于一个或多个升高的​​体积。 示例性排放控制系统还包括响应于排气系统中的NO x水平的排放传感器，以及操作性地耦合到排放传感器以及基础传感器和升高的传感器中的至少一个并且被配置为指示何时 在一个间隔内，过量的NO x排放随着还原剂溶液在基体积上升或者体积增加而增加。 示例性排放物控制系统还可以包括可操作地耦合到基体积传感器并且被配置为指示还原剂溶液的体积何时变得小于基体积的不足指示器。