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    Running of an internal combustion engine in conjunction with an NOx-accumulator catalytic converter
    4.
    发明授权
    Running of an internal combustion engine in conjunction with an NOx-accumulator catalytic converter 失效
    运行内燃机与NOx-催化转化器一起运行

    公开(公告)号：US06324834B1

    公开(公告)日：2001-12-04

    申请号：US09367449

    申请日：1999-08-16

    申请人： Eberhard Schnaibel ,  Andreas Blumenstock ,  Klaus Winkler

    发明人： Eberhard Schnaibel ,  Andreas Blumenstock ,  Klaus Winkler

    IPC分类号： F01N300

    CPC分类号： F01N3/0842 ,  B01D53/9431 ,  B01D53/9495 ,  F02D41/0275 ,  F02D41/1402 ,  F02D41/1441

    摘要： A method is presented for controlling the supply of reducing agent to a NOx-storage catalytic converter of an internal combustion engine, which is operated at least at times with a lean air/fuel mixture, with an exhaust-gas sensor mounted in flow direction rearward of the NOx-storage catalytic converter; wherein the supply of the reducing agent takes place repeatedly in time intervals separate from each other; and wherein the reducing agent quantity, which is supplied in each time interval, is reduced compared to that quantity which is supplied in a previous supply phase in which a reaction of the exhaust-gas sensor occurred.

    摘要翻译： 提出了一种用于控制向内燃机的NOx储存催化转化器供应还原剂的方法，该内燃机至少在有空气/燃料混合物的情况下运行，排气传感器安装在流动方向后方 的NOx储存催化转化器; 其中所述还原剂的供给在彼此分离的时间间隔中重复发生; 并且其中与在排气传感器的反应发生的先前供给阶段中供应的量相比，在每个时间间隔内提供的还原剂量减少。

    Method of operating an internal combustion engine
    5.
    发明授权
    Method of operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号：US06813881B2

    公开(公告)日：2004-11-09

    申请号：US10204008

    申请日：2002-10-29

    申请人： Andreas Roth ,  Andreas Koring ,  Beate Rittmann ,  Holger Bellmann ,  Klaus Winkler

    发明人： Andreas Roth ,  Andreas Koring ,  Beate Rittmann ,  Holger Bellmann ,  Klaus Winkler

    IPC分类号： F01N300

    CPC分类号： F02D41/401 ,  F02D41/025 ,  F02D41/1446 ,  F02D41/3011 ,  F02D41/3029 ,  F02D41/405 ,  Y02T10/26 ,  Y02T10/44

    摘要： An internal combustion engine, in particular for a motor vehicle, in which fuel may be injected into a combustion chamber during an intake phase in a first mode of operation or during a compression phase in a second mode of operation, and in which exhaust gases may be sent to a catalytic converter. A control unit determines a temperature difference between an actual exhaust gas temperature and a setpoint exhaust gas temperature at an operating point having a low exhaust gas temperature. In addition, at least one additional injection after combustion is implemented by the control unit as a function of the temperature difference.

    摘要翻译： 特别是用于机动车辆的内燃机，其中可以在第一操作模式的进气阶段或在第二操作模式的压缩阶段期间将燃料喷射到燃烧室中，并且其中废气可以 送到催化转化器。 控制单元确定具有低废气温度的工作点的实际废气温度和设定值排气温度之间的温度差。 此外，燃烧后的至少一次附加喷射是通过控制单元作为温度差的函数来实现的。

    Method and model for modeling a discharge phase of a nitrous oxide storage catalytic converter
    7.
    发明授权
    Method and model for modeling a discharge phase of a nitrous oxide storage catalytic converter 有权
    用于建模一氧化二氮储存催化转化器排放相的方法和模型

    公开(公告)号：US07051515B2

    公开(公告)日：2006-05-30

    申请号：US10344745

    申请日：2001-07-20

    申请人： Eberhard Schnaibel ,  Klaus Winkler ,  Klaus Hirschmann

    发明人： Eberhard Schnaibel ,  Klaus Winkler ,  Klaus Hirschmann

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0864 ,  F01N3/0842 ,  F01N9/005 ,  F01N11/00 ,  F01N2550/03 ,  F01N2570/16 ,  F02D41/0275 ,  F02D41/1482 ,  F02D2041/389 ,  F02D2200/0806 ,  F02D2200/0814

    摘要： The invention further relates to a method and a model for modeling a discharge phase of a nitrogen oxide (NOx)-storage catalytic converter (12′) of an internal combustion engine (1). The NOx-storage catalytic converter (12′) is subdivision into an oxygen (O2)-store and a nitrogen oxide (NOx)-store and a reducing agent mass flow (msrg) is determined which charges the O2-store and the NOx-store. To model a discharge phase of the NOx-storage catalytic converter (12′), the O2-store is modeled via a first integrator for oxygen (O2) and the NOx-store via a second integrator for nitrogen oxide (NOx) and the first integrator and the second integrator are charge proportionally with the reducing agent mass flow (msrg) in accordance with an apportioning factor determined in dependence upon the O2-store content (mo2sp) and the NOx-store content (mnosp) of the NOx-storage catalytic converter (12′).

    摘要翻译： 本发明还涉及一种用于对内燃机（1）的氮氧化物（NOx）储存催化转化器（12'）的排放相进行建模的方法和模型。 NOx储存催化转化器（12'）分为氧（O 2） - 和氮氧化物（NO x） - 储存器，并且确定对O2储存器和NOx-储存催化转化器进行充电的还原剂质量流量（msrg） 商店。 为了对NOx储存催化转化器（12'）的排放相进行建模，通过用于氧（O 2）的第一积分器和经由用于氮氧化物（NO x）的第二积分器的NOx存储来建模O2储存器，并且第一 积分器和第二积分器根据根据储存氧的储存量（mo2sp）和NOx储存含量（mnosp）确定的分配因子与还原剂质量流量（msrg）成比例地进料。 转换器（12'）。

    Method for desulfurizing a storage medium
    8.
    发明授权
    Method for desulfurizing a storage medium 有权
    存储介质脱硫方法

    公开(公告)号：US06854266B2

    公开(公告)日：2005-02-15

    申请号：US10344017

    申请日：2001-08-08

    申请人： Eberhard Schnaibel ,  Klaus Winkler ,  Christoph Woll

    发明人： Eberhard Schnaibel ,  Klaus Winkler ,  Christoph Woll

    IPC分类号： F02D45/00 ,  B01D53/94 ,  B01J20/34 ,  F01N3/08 ,  F01N3/18 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F02D41/02 ,  F01N3/00

    CPC分类号： F01N3/0842 ,  F01N2570/04 ,  F02D41/028 ,  F02D41/0285

    摘要： A method of desulfurization of a ceramic storage medium for sulfur oxides and/or nitrogen oxides situated in a gas stream, in particular a storage device for nitrogen oxides or sulfur oxides situated in the exhaust gas stream of an internal combustion engine, is described, a mixture having a low oxygen concentration being established in the gas stream to release the stored sulfur oxides. A measuring signal is recorded by an oxygen probe positioned downstream from the storage medium in a gas stream flow direction, the curve of this measuring signal being used to determine the loading of the storage medium with sulfur oxides. This method allows determination of the need for desulfurization as a function of the loading of the storage medium with sulfur oxides, to monitor and control the progress of desulfurization initiated and to check on how complete the desulfurization that is concluded has been.

    摘要翻译： 描述了一种用于位于气流中的硫氧化物和/或氮氧化物的陶瓷储存介质的脱硫方法，特别是位于内燃机的废气流中的氮氧化物或硫氧化物的储存装置， 在气流中建立具有低氧浓度的混合物以释放储存的硫氧化物。 通过在气流流动方向上位于存储介质下游的氧探头记录测量信号，该测量信号的曲线用于确定存储介质与硫氧化物的负载。 该方法可以确定脱硫的需要是与硫氧化物的存储介质的负载有关的一个功能，以监测和控制脱硫开始的进度，并检查已经完成的脱硫程度。

    Method of diagnosing an NOX storage catalytic converter during operation of an internal combustion engine
    9.
    发明授权
    Method of diagnosing an NOX storage catalytic converter during operation of an internal combustion engine 有权
    在内燃机操作期间诊断NO x储存催化转化器的方法

    公开(公告)号：US06216448B1

    公开(公告)日：2001-04-17

    申请号：US09234219

    申请日：1999-01-19

    申请人： Eberhard Schnaibel ,  Klaus Winkler ,  Bernd Schumann

    发明人： Eberhard Schnaibel ,  Klaus Winkler ,  Bernd Schumann

    IPC分类号： F01N300

    CPC分类号： F01N3/0871 ,  F01N3/0842 ,  F01N11/007 ,  F01N13/0097 ,  F01N2250/12 ,  F01N2550/03 ,  F01N2570/16 ,  F01N2610/02 ,  F01N2610/03 ,  Y02T10/47

    摘要： The invention is directed to a method and an arrangement for diagnosing a catalytic converter arranged in the exhaust-gas system of an internal combustion engine. The catalytic converter is configured to have an oxygen storage capability and a nitrogen oxide storage capability. A first exhaust-gas probe is mounted rearward of the catalytic converter and a second exhaust-gas probe is mounted forward thereof. The oxygen concentration of the exhaust gas forward of the catalytic converter is alternately increased and decreased so that the signals of both exhaust-gas probes change. A first phase shift between the signals of both exhaust-gas probes is detected when the oxygen concentration increases and a second phase shift between the signals is detected when the oxygen concentration decreases. The difference of the phase shifts is determined and a fault signal is outputted and/or stored when this difference does not reach a pregiven threshold.

    摘要翻译： 本发明涉及一种用于诊断布置在内燃机的排气系统中的催化转化器的方法和装置。 催化转化器被配置为具有储氧能力和氮氧化物储存能力。 第一排气探针安装在催化转化器的后方，第二排气探头安装在其前面。 催化转化器前方的排气的氧浓度交替地增加和减少，使得两个废气探测器的信号变化。 当氧浓度增加时检测两个排气探测器的信号之间的第一相移，并且当氧浓度降低时检测信号之间的第二相移。 确定相移的差异，并且当该差不达到预定阈值时，输出和/或存储故障信号。

    Method for operating a nitrogen oxide (nox) storage catalyst
    10.
    发明授权
    Method for operating a nitrogen oxide (nox) storage catalyst 失效
    操作氮氧化物（nox）储存催化剂的方法

    公开(公告)号：US06901745B2

    公开(公告)日：2005-06-07

    申请号：US10333955

    申请日：2001-07-11

    申请人： Eberhard Schnaibel ,  Klaus Winkler

    发明人： Eberhard Schnaibel ,  Klaus Winkler

    IPC分类号： F01N3/08 ,  F01N9/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/24 ,  F02D41/30 ,  F01N3/00

    CPC分类号： F01N3/208 ,  F01N3/0842 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/0418 ,  F02D41/0275 ,  F02D41/1454 ,  F02D41/146 ,  F02D41/2474 ,  F02D41/3029 ,  Y02A50/2325 ,  Y02T10/24

    摘要： The invention relates to a method for operating a nitrogen oxide (NOx) storage catalytic converter (12′). During a first operating phase of the storage catalytic converter (12′), nitrogen oxides are stored and, during a second operating phase, stored nitrogen oxides are discharged from the converter (12′). The stored quantity of nitrogen oxides is determined during the first operating phase. In order to be able to determine start and end of the second operating phase as accurately as possible, a quantity, which characterizes the discharge quantity of nitrogen oxides, is determined during the second operating phase and compared to the stored quantity of nitrogen oxides determined during the first operating phase. With the comparison, a plausibility check and a calibration of the output signal of a nitrogen oxide (NOx) sensor (14′) can take place. The nitrogen oxide (NOx) sensor (14′) is disposed downstream of the storage catalytic converter (12′).

    摘要翻译： 本发明涉及一种操作氮氧化物（NOx）储存催化转化器（12'）的方法。 在储存催化转化器（12'）的第一操作阶段期间，存储氮氧化物，并且在第二操作阶段期间，储存的氮氧化物从转化器（12'）排出。 在第一个操作阶段确定储存的氮氧化物量。 为了能够尽可能准确地确定第二操作阶段的开始和结束，在第二操作阶段期间确定表征氮氧化物排放量的量，并与第二操作阶段中确定的氮氧化物的储存量进行比较 第一个操作阶段。 通过比较，可以进行氮氧化物（NOx）传感器（14'）的输出信号的合理性检查和校准。 氮氧化物（NOx）传感器（14'）设置在储存催化转化器（12'）的下游。