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    Method for determining reducing agent slippage and motor vehicle employing the method
    4.
    发明授权
    Method for determining reducing agent slippage and motor vehicle employing the method 有权
    使用该方法确定还原剂滑动的方法和机动车辆

    公开(公告)号：US09500111B2

    公开(公告)日：2016-11-22

    申请号：US14589067

    申请日：2015-01-05

    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH

    Inventor： Peter Bauer

    IPC: F01N3/20 ,  F01N11/00

    CPC classification number: F01N3/208 ,  F01N11/00 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1616 ,  Y02A50/2325 ,  Y02T10/24

    Abstract: A method for determining reducing agent slippage from an exhaust-gas treatment device includes determining a difference between sensor signals of a second nitrogen oxide sensor and of a device for determining a nitrogen oxide compound quantity upstream of an SCR catalytic converter in an exhaust-gas flow direction; determining a controlling deviation from the difference and a target value of a controlling element; determining a gradient of an integral controlling component; and identifying reducing agent slippage if the controlling deviation exceeds a first threshold value and the gradient exceeds a second threshold value. The method and a corresponding device make it possible to reliably identify reducing agent slippage so that a very fast controlling element can be used.

    Abstract translation: 用于确定来自废气处理装置的还原剂滑动的方法包括确定第二氮氧化物传感器的传感器信号与用于确定排气流中SCR催化转化器上游的氮氧化合物量的装置之间的差异 方向; 确定与控制元件的差值和目标值的控制偏差; 确定积分控制部件的梯度; 以及如果所述控制偏差超过第一阈值并且所述梯度超过第二阈值，则识别减少剂滑动。 该方法和相应的装置使得可以可靠地识别减少剂滑动，从而可以使用非常快的控制元件。

    Method for operating a delivery unit for a reducing agent and motor vehicle having a delivery unit
    5.
    发明授权
    Method for operating a delivery unit for a reducing agent and motor vehicle having a delivery unit 有权
    用于操作具有输送单元的还原剂和机动车辆的输送单元的方法

    公开(公告)号：US09140165B2

    公开(公告)日：2015-09-22

    申请号：US13632521

    申请日：2012-10-01

    Applicant: Emitec Gesellschaft fuer Emissionstechnologie mbH

    Inventor： Peter Bauer ,  Jan Hodgson

    IPC: F01N3/00 ,  F01N3/20

    CPC classification number: F01N3/208 ,  F01N2610/02 ,  F01N2610/1466 ,  F01N2610/1473 ,  F01N2900/0422 ,  F01N2900/1808 ,  F01N2900/1811 ,  F01N2900/1822 ,  Y02A50/2325 ,  Y02T10/24 ,  Y10T137/0318

    Abstract: A method for operating a reducing agent delivery unit having a tank, a feed line running from the tank to an addition point, a return line branching off from the feed line and a valve to be activated with an electrical current for closing off the return line, includes initially applying an activation current to the valve for a first time interval. Subsequently, a holding current is applied to the valve when the first time interval has elapsed. Then, an operating variable of the delivery unit is determined and at least the activation current, the holding current and/or the first time interval are adapted as a function of the determined operating variable. A motor vehicle having a delivery unit is also provided.

    Abstract translation: 一种用于操作具有罐的还原剂输送单元的方法，从所述罐延伸到附加点的进料管线，从所述进料管线分支的返回管线和用于关闭所述回流管线的电流被激活的阀 包括首先在第一时间间隔内向阀施加激活电流。 随后，当经过第一时间间隔时，将保持电流施加到阀。 然后，确定输送单元的操作变量，并且至少将激活电流，保持电流和/或第一时间间隔调整为所确定的操作变量的函数。 还提供了具有输送单元的机动车辆。

    Method for metering a reducing agent into an exhaust-gas treatment device, exhaust-gas treatment device and motor vehicle
    7.
    发明授权
    Method for metering a reducing agent into an exhaust-gas treatment device, exhaust-gas treatment device and motor vehicle 有权
    将还原剂计量到废气处理装置，废气处理装置和机动车辆中的方法

    公开(公告)号：US09429061B2

    公开(公告)日：2016-08-30

    申请号：US14589065

    申请日：2015-01-05

    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH

    Inventor： Peter Bauer

    IPC: B01D53/94 ,  F01N11/00 ,  F01N3/20 ,  F01N9/00

    CPC classification number: F01N3/208 ,  B01D53/9431 ,  F01N9/00 ,  F01N11/00 ,  F01N2610/146 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1602 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    Abstract: A method for metering reducing agent to an exhaust gas treatment device having a feed point and an SCR catalytic converter converting nitrogen oxide compounds in the exhaust gas, includes at least: a) calculating the following target conversion rates indicating what fraction of the nitrogen oxide compounds in the exhaust gas can be converted by the catalytic converter: a first rate determined from the power output of an internal combustion engine; a second rate determined from the mass flow of nitrogen oxide compounds in purified exhaust gas; and a third rate determined from a ratio of quantities of nitrogen oxide compounds upstream and downstream of the catalytic converter; b) selecting the lowest rate; c) determining the dosing quantity of reducing agent for the selected rate; and d) dosing the determined dosing quantity into the exhaust gas treatment device. An exhaust-gas treatment device and a motor vehicle are also provided.

    Abstract translation: 一种用于向具有进料点的排气处理装置计量还原剂和将废气中的氮氧化合物转化为SCR催化转化器的还原剂的方法至少包括：a）计算以下目标转化率，其表明氮氧化物组分 在废气中可以由催化转化器转化：从内燃机功率输出确定的第一速率; 由净化废气中的氮氧化物化合物的质量流量确定的第二速率; 并且由催化转化器的上游和下游的氮氧化物的量的比率确定的第三速率; b）选择最低利率; c）确定所选择的速率的还原剂的给药量; 以及d）将确定的给药量加入废气处理装置。 还提供废气处理装置和机动车辆。

    Method for operating a metering apparatus, metering apparatus and motor vehicle having a metering apparatus
    8.
    发明授权
    Method for operating a metering apparatus, metering apparatus and motor vehicle having a metering apparatus 有权
    用于操作具有计量装置的计量装置，计量装置和机动车辆的方法

    公开(公告)号：US08925307B2

    公开(公告)日：2015-01-06

    申请号：US13867527

    申请日：2013-04-22

    Applicant: EMITEC Gesellschaft fuer Emissionstechnologie mbH

    Inventor： Rolf Brueck ,  Jan Hodgson ,  Sven Schepers ,  Peter Bauer

    IPC: F01N3/20

    CPC classification number: F01N3/208 ,  F01N2610/1433 ,  Y02A50/2325 ,  Y02T10/24

    Abstract: A method for operating a metering apparatus for reducing agent includes providing the metering apparatus with at least one movable pump element movable between upper and lower reversal points to convey reducing agent into an exhaust-gas treatment component, and at least one position transmitter for determining a pass of the movable pump element. In the method, a first detection of a position of the movable pump element is provided by the position encoder. Subsequently, the movable pump element is moved and reducing agent is metered into the exhaust-gas treatment component. Thereupon, a second detection of a position of the movable pump element is provided by the position encoder, and subsequently a first quantity of reducing agent which is metered between the first and second detections is determined. A metering apparatus and a motor vehicle having a metering apparatus are also provided.

    Abstract translation: 用于操作还原剂的计量装置的方法包括向计量装置提供至少一个在上下反转点之间可移动的可移动的泵元件，以将还原剂输送到废气处理部件中;以及至少一个位置传感器， 可移动泵元件的通过。 在该方法中，由位置编码器提供可动泵元件的位置的第一次检测。 随后，移动泵元件并将还原剂计量到排气处理部件中。 于是，通过位置编码器提供可移动泵元件的位置的第二次检测，随后确定在第一和第二检测之间计量的第一量的还原剂。 还提供了具有计量装置的计量装置和机动车辆。

    EXHAUST-GAS TREATMENT DEVICE
    9.
    发明申请
    EXHAUST-GAS TREATMENT DEVICE 有权
    排气处理装置

    公开(公告)号：US20140241951A1

    公开(公告)日：2014-08-28

    申请号：US14269617

    申请日：2014-05-05

    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH

    Inventor： Peter Hirth ,  Jan Hodgson ,  Peter Bauer

    IPC: B01D53/94

    CPC classification number: B01D53/94 ,  B01D2255/90 ,  F01N3/0222 ,  F01N3/027 ,  F01N3/2013 ,  F01N3/281 ,  F01N2240/16 ,  F01N2330/02 ,  Y02T10/26

    Abstract: An exhaust-gas treatment device includes a honeycomb body wound and/or stacked with at least partially structured sheet-metal layers forming channels through which an exhaust gas can flow in axial direction from an inlet side to an outlet side. A first section of the sheet-metal layers ends flush at a first end surface associated with at least one of the sides and a second section of the sheet-metal layers ends at a second end surface associated with at least one of the sides. A spacing is provided between the first and second end surfaces because a first axial length of the first section is greater than a second axial length of the second section. The spacing forms a receptacle receiving a heating body, producing a simple electrically heatable exhaust-gas treatment device into which a heating body can be integrated during or after production of the honeycomb body.

    Abstract translation: 废气处理装置包括：蜂窝体，其被卷绕和/或堆叠成具有形成通道的至少部分结构的片状金属层，废气可以通过该通道在轴向方向上从入口侧到出口侧流动。 片状金属层的第一部分在与至少一个侧面相关联的第一端表面处齐平，并且片金属层的第二部分在与至少一个侧面相关联的第二端表面处终止。 由于第一部分的第一轴向长度大于第二部分的第二轴向长度，所以在第一和第二端面之间提供间隔。 间隔形成容纳加热体的容器，产生简单的可电加热废气处理装置，在蜂窝体的制造过程中或之后，加热体可以集成在其中。

    Method for operating an exhaust-gas treatment device having a heater and motor vehicle having the device
    10.
    发明授权
    Method for operating an exhaust-gas treatment device having a heater and motor vehicle having the device 有权
    用于具有加热器和具有该装置的机动车辆的废气处理装置的操作方法

    公开(公告)号：US09371760B2

    公开(公告)日：2016-06-21

    申请号：US14474464

    申请日：2014-09-02

    Applicant: EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH

    Inventor： Peter Hirth ,  Peter Bauer ,  Jan Hodgson

    IPC: F01N3/00 ,  F01N3/20 ,  F01N9/00

    CPC classification number: F01N3/2006 ,  F01N3/2013 ,  F01N3/2066 ,  F01N3/208 ,  F01N9/00 ,  F01N2610/02 ,  F01N2610/102 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

    Abstract: A method for operating an exhaust gas treatment device including an electric heater for heating an exhaust gas flow in the exhaust gas treatment device and/or a surface in the exhaust gas treatment device and a feed point for feeding an additive into the exhaust gas treatment device to impinge upon the electric heater, includes supplying additives to the feed point, determining an operational state of the exhaust gas treatment device, in which deposits can impinge upon the electric heater, using at least one state variable, determining a cycle frequency in dependence on the operating state when the operating state lies in a predetermined operating state range, and cyclically activating and deactivating the electric heater using the determined cycle frequency when the determined operating state lies in the predetermined operating state range. A motor vehicle having the exhaust-gas treatment device is also provided.

    Abstract translation: 一种排气处理装置的动作方法，其特征在于，包括：在排气处理装置和/或排气处理装置的表面上设置用于加热废气流的电加热器的电加热器和用于将添加剂供给到排气处理装置 撞击到电加热器上，包括向进料点供应添加剂，使用至少一个状态变量确定沉积物可以撞击到电加热器上的废气处理装置的操作状态，根据 当操作状态处于预定操作状态范围时的操作状态，并且当所确定的操作状态处于预定操作状态范围时，使用所确定的循环频率循环地激活和停用电加热器。 还提供了具有废气处理装置的机动车辆。

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