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    Method for controlling an internal combustion engine in connection with an exothermal regeneration of an exhaust gas aftertreatment component
    1.
    发明授权
    Method for controlling an internal combustion engine in connection with an exothermal regeneration of an exhaust gas aftertreatment component 有权
    与废气后处理部件的放热再生有关的控制内燃机的方法

    公开(公告)号：US09016049B2

    公开(公告)日：2015-04-28

    申请号：US12889161

    申请日：2010-09-23

    申请人： Matthias Loehr ,  Stefan Scherer ,  Wolfram Faas ,  Rolf-Dieter Koch ,  Holger Ziegler

    发明人： Matthias Loehr ,  Stefan Scherer ,  Wolfram Faas ,  Rolf-Dieter Koch ,  Holger Ziegler

    IPC分类号： F01N3/18 ,  F01N9/00 ,  F01N3/08 ,  F02D41/02 ,  F02D41/14

    CPC分类号： F01N9/00 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N2430/00 ,  F01N2900/1602 ,  F02D41/027 ,  F02D41/1446 ,  F02D41/1454 ,  F02D2041/0265 ,  F02D2200/0802 ,  F02D2200/0804 ,  Y02T10/47

    摘要： A method is presented for controlling an internal combustion engine (10), which includes an exhaust gas system (12) having an exhaust gas aftertreatment component (22) that temporarily stores exhaust gas constituents and can be regenerated, wherein an expected value for a temperature of the exhaust gas aftertreatment component (22) is formed as a function of an increase in temperature, which arises as a result of exothermal reactions during the duration of an operating mode (BA2) of the internal combustion engine (10) which is set for the regeneration of said exhaust gas aftertreatment component (22), wherein the expected value is compared with an upper threshold value (T_max) and the control of said internal combustion engine (10) is changed when the threshold value (T_max) is exceeded, such that an expected value formed while taking the changed control into account does not exceed said threshold value (T_max). The method is thereby characterized in that a direction of change of a current temperature of said exhaust gas aftertreatment component (22) is taken into account when forming the expected value.

    摘要翻译： 提出了一种用于控制内燃机（10）的方法，该内燃机（10）包括具有临时存储排气成分并可再生的废气后处理部件（22）的排气系统（12），其中温度的期望值 废气后处理部件（22）的形成是随着内燃机（10）的操作模式（BA2）持续期间由于放热反应而引起的温度升高的函数，该内燃机设定为 所述废气后处理部件（22）的再生，其中，当超过所述阈值（T_max）时，所述预期值与上限阈值（T_max）进行比较，并且所述内燃机（10）的控制被改变， 在考虑改变的控制时形成的期望值不超过所述阈值（T_max）。 因此，该方法的特征在于，当形成预期值时，考虑所述废气后处理部件（22）的当前温度的变化方向。

    Method for operating an internal combustion engine and device for carrying out the method
    3.
    发明授权
    Method for operating an internal combustion engine and device for carrying out the method 有权
    用于操作内燃机的方法和用于执行该方法的装置

    公开(公告)号：US08024921B2

    公开(公告)日：2011-09-27

    申请号：US12066223

    申请日：2006-07-31

    申请人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

    发明人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

    IPC分类号： F01N3/00 ,  F01N3/10

    CPC分类号： F01N3/208 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0402 ,  F01N2900/08 ,  F01N2900/14 ,  F01N2900/1814 ,  Y02T10/24

    摘要： A method for operating an internal combustion engine in whose exhaust gas region at least one SCR catalytic converter is arranged, a reagent which contributes to NOx conversion in the SCR catalytic converter being applied to said SCR catalytic converter, and a device for carrying out the method are proposed. A measure for the NOx current which occurs downstream of the SCR catalytic converter is both calculated and measured with an NOx sensor which has lateral sensitivity to the reagent. The difference between the calculated measure and the measured measure of the NOx current is determined. A reagent signal which defines the metering of the reagent is influenced as a function of the difference. Plausibility checking is provided, during which the reagent quantity which is metered in a predefined time period and the reagent quantity which is converted in the SCR catalytic converter and/or the converted NOx quantity are compared with one another. When a deviation is detected, a correction signal which also influences the reagent signal is made available.

    摘要翻译： 一种用于操作其排气区域中至少一个SCR催化转化器的内燃机的方法，用于施加到所述SCR催化转化器的SCR催化转化器中的有助于NOx转化的试剂，以及用于执行该方法的装置 被提出。 利用对试剂具有侧向敏感性的NOx传感器来计算和测量在SCR催化转化器下游发生的NOx电流的测量。 确定计算的测量值与测量的NOx电流的测量值之间的差异。 定义试剂计量的试剂信号作为差异的函数受到影响。 提供了可靠性检查，其中在预定时间段内计量的试剂量和SCR催化转化器中转换的试剂量和/或转化的NOx量彼此进行比较。 当检测到偏差时，也会影响也影响试剂信号的校正信号。

    Method for operating an internal combustion engine and device for implementing the method
    4.
    发明授权
    Method for operating an internal combustion engine and device for implementing the method 有权
    用于操作内燃机的方法和用于实施该方法的装置

    公开(公告)号：US08020374B2

    公开(公告)日：2011-09-20

    申请号：US12066231

    申请日：2006-08-01

    申请人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

    发明人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  F01N9/00 ,  F01N9/005 ,  F01N2390/02 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2560/14 ,  F01N2610/146 ,  F01N2900/0408 ,  F01N2900/14 ,  F01N2900/1622 ,  F01N2900/1814 ,  Y02T10/24 ,  Y02T10/47

    摘要： invention relates to a method for operating an internal combustion engine, in the exhaust gas section of which is arranged at least one SCR catalytic converter, which is hit with a reagent that contributes to NOx conversion in the SCR catalytic converter, and to a device for implementing the method. At least one measure is calculated for the NOx concentration downstream after the SCR catalytic converter. An NOx sensor, which is arranged downstream after the SCR catalytic converter, generates an exhaust gas sensor signal which corresponds to at least the NOx concentration and optionally, as a result of cross sensitivity, to a reagent slip. A reagent signal, which determines the dosage of reagent, is influenced by a correction signal as a function of the difference and as a function of a measure for the temperature of the SCR catalytic converter.

    摘要翻译： 本发明涉及一种用于操作内燃机的方法，其排气部分布置有至少一个SCR催化转化器，其被SCR催化转化器中有助于NOx转化的试剂撞击，并且用于 实施该方法。 在SCR催化转化器之后，对下游的NOx浓度计算至少一个量度。 布置在SCR催化转化器后面的NOx传感器产生对应于至少NOx浓度的排气传感器信号，并且可选地，作为交叉灵敏度的结果，产生对试剂滑移的排气传感器信号。 确定试剂剂量的试剂信号受作为差异的函数的校正信号和作为SCR催化转化器的温度的测量的函数的影响。

    Method for operating an internal combustion engine and a device for carrying out the method
    5.
    发明授权
    Method for operating an internal combustion engine and a device for carrying out the method 失效
    用于操作内燃机的方法和用于执行该方法的装置

    公开(公告)号：US07603846B2

    公开(公告)日：2009-10-20

    申请号：US11236162

    申请日：2005-09-26

    申请人： Hartmut Lueders ,  Christian Walz ,  Thorsten Mayer ,  Matthias Loehr

    发明人： Hartmut Lueders ,  Christian Walz ,  Thorsten Mayer ,  Matthias Loehr

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  F01N11/002 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2900/0408 ,  F01N2900/1402 ,  F01N2900/1622 ,  F02D41/146 ,  F02D41/1462 ,  F02D41/1465 ,  F02D2200/0802 ,  F02D2200/0811 ,  Y02T10/24 ,  Y02T10/47

    摘要： A method for operating an internal combustion engine whose exhaust area has at least one SCR catalytic converter and a device for carrying out the method are described. The SCR catalytic converter receiving the reagent supports the conversion of the raw NOx emission of the internal combustion engine. At least a measure of the NOx concentration occurring downstream from the SCR catalytic converter is calculated and this value may be used to define a metering signal for the reagent and/or a heating measure for heating the SCR catalytic converter may be initiated. According to a refinement of this arrangement, a difference between the calculated NOx concentration and the sum of the measured NOx concentration and the measured reagent concentration downstream from the SCR catalytic converter is determined, and it is possible to intervene in the determination of the metering signal depending on the difference.

    摘要翻译： 描述了一种用于操作其排气区域具有至少一个SCR催化转化器的内燃机和用于执行该方法的装置的方法。 接收该试剂的SCR催化转化器支持内燃机的原始NOx排放的转换。 计算SCR催化转化器下游发生的NOx浓度的量度，并且可以使用该值来定义试剂的计量信号和/或用于加热SCR催化转化器的加热措施。 根据该结构的改进，确定计算出的NOx浓度与测定的NOx浓度与SCR催化剂下游的测定试剂浓度的和之间的差异，并且可以介入计量信号的确定 取决于差异。

    METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND DEVICE FOR CARRYING OUT THE METHOD
    6.
    发明申请
    METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND DEVICE FOR CARRYING OUT THE METHOD 有权
    用于操作内燃机的方法和用于实施该方法的装置

    公开(公告)号：US20090199541A1

    公开(公告)日：2009-08-13

    申请号：US12066223

    申请日：2006-07-31

    申请人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

    发明人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

    IPC分类号： F01N11/00 ,  F01N3/10 ,  F01N9/00

    CPC分类号： F01N3/208 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0402 ,  F01N2900/08 ,  F01N2900/14 ,  F01N2900/1814 ,  Y02T10/24

    摘要： A method for operating an internal combustion engine in whose exhaust gas region at least one SCR catalytic converter is arranged, a reagent which contributes to NOx conversion in the SCR catalytic converter being applied to said SCR catalytic converter, and a device for carrying out the method are proposed. A measure for the NOx current which occurs downstream of the SCR catalytic converter is both calculated and measured with an NOx sensor which has lateral sensitivity to the reagent. The difference between the calculated measure and the measured measure of the NOx current is determined. A reagent signal which defines the metering of the reagent is influenced as a function of the difference. Plausibility checking is provided, during which the reagent quantity which is metered in a predefined time period and the reagent quantity which is converted in the SCR catalytic converter and/or the converted NOx quantity are compared with one another. When a deviation is detected, a correction signal which also influences the reagent signal is made available.

    摘要翻译： 一种用于操作其排气区域中至少一个SCR催化转化器的内燃机的方法，用于施加到所述SCR催化转化器的SCR催化转化器中的有助于NOx转化的试剂，以及用于执行该方法的装置 被提出。 利用对试剂具有侧向敏感性的NOx传感器来计算和测量在SCR催化转化器下游发生的NOx电流的测量。 确定计算的测量值与测量的NOx电流的测量值之间的差异。 定义试剂计量的试剂信号作为差异的函数受到影响。 提供了可靠性检查，其中在预定时间段内计量的试剂量和SCR催化转化器中转换的试剂量和/或转化的NOx量彼此进行比较。 当检测到偏差时，也会影响也影响试剂信号的校正信号。

    METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE IN CONNECTION WITH AN EXOTHERMAL REGENERATION OF AN EXHAUST GAS AFTERTREATMENT COMPONENT
    8.
    发明申请
    METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE IN CONNECTION WITH AN EXOTHERMAL REGENERATION OF AN EXHAUST GAS AFTERTREATMENT COMPONENT 有权
    用于控制内燃机与排气后处理组件的再热再生相关的方法

    公开(公告)号：US20110072785A1

    公开(公告)日：2011-03-31

    申请号：US12889161

    申请日：2010-09-23

    申请人： Matthias Loehr ,  Stefan Scherer ,  Wolfram Faas ,  Rolf-Dieter Koch ,  Holger Ziegler

    发明人： Matthias Loehr ,  Stefan Scherer ,  Wolfram Faas ,  Rolf-Dieter Koch ,  Holger Ziegler

    IPC分类号： F01N3/00

    CPC分类号： F01N9/00 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N2430/00 ,  F01N2900/1602 ,  F02D41/027 ,  F02D41/1446 ,  F02D41/1454 ,  F02D2041/0265 ,  F02D2200/0802 ,  F02D2200/0804 ,  Y02T10/47

    摘要： A method is presented for controlling an internal combustion engine (10), which includes an exhaust gas system (12) having an exhaust gas aftertreatment component (22) that temporarily stores exhaust gas constituents and can be regenerated, wherein an expected value for a temperature of the exhaust gas aftertreatment component (22) is formed as a function of an increase in temperature, which arises as a result of exothermal reactions during the duration of an operating mode (BA2) of the internal combustion engine (10) which is set for the regeneration of said exhaust gas aftertreatment component (22), wherein the expected value is compared with an upper threshold value (T_max) and the control of said internal combustion engine (10) is changed when the threshold value (T_max) is exceeded, such that an expected value formed while taking the changed control into account does not exceed said threshold value (T_max). The method is thereby characterized in that a direction of change of a current temperature of said exhaust gas aftertreatment component (22) is taken into account when forming the expected value.

    摘要翻译： 提出了一种用于控制内燃机（10）的方法，该内燃机（10）包括具有临时存储排气成分并可再生的废气后处理部件（22）的排气系统（12），其中温度的期望值 废气后处理部件（22）的形成是随着内燃机（10）的操作模式（BA2）持续期间由于放热反应而引起的温度升高的函数，该内燃机设定为 所述废气后处理部件（22）的再生，其中，当超过所述阈值（T_max）时，所述预期值与上限阈值（T_max）进行比较，并且所述内燃机（10）的控制被改变， 在考虑改变的控制时形成的期望值不超过所述阈值（T_max）。 因此，该方法的特征在于，当形成预期值时，考虑所述废气后处理部件（22）的当前温度的变化方向。

    Procedure and device to monitor an exhaust gas after-treatment system
    10.
    发明申请
    Procedure and device to monitor an exhaust gas after-treatment system 失效
    废气处理系统监控程序和装置

    公开(公告)号：US20070144151A1

    公开(公告)日：2007-06-28

    申请号：US11638764

    申请日：2006-12-14

    申请人： Hartmut Lueders ,  Christian Walz ,  Matthias Loehr

    发明人： Hartmut Lueders ,  Christian Walz ,  Matthias Loehr

    IPC分类号： F01N3/00 ,  F01N3/10

    CPC分类号： F01N11/002 ,  F01N3/0253 ,  F01N3/2066 ,  F01N13/009 ,  F01N2250/02 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

    摘要： The invention concerns a procedure to monitor an exhaust gas after-treatment system of an internal combustion engine with a motor block and an exhaust gas duct, which has at least one catalytic converter, upstream from which a reagent substance necessary for the NOx reduction in the catalytic converter is introduced by means of an introduction device, whereby the reduction agent rate is increased to such an extent at defined reference operating points until an ammonia breach is detected in direction of flow behind the catalytic converter by means of an ammonia sensitive sensor in the exhaust gas duct.The invention additionally concerns a device to monitor an exhaust gas after-treatment system of an internal combustion engine with a motor block and at least one exhaust gas duct, which has at least one NOx sensor to determine the NOx content in the exhaust gas and at least one catalytic converter, upstream from which a reagent substance necessary for the NOx reduction in the catalytic converter can be introduced by means of an introduction device, whereby the NOx sensor as well as additional sensors to measure the temperature at the catalytic converter and to measure the air in the air delivery duct as well as an ammonia sensitive sensor in the direction of flow behind the catalytic converter maintain an active connection to the monitoring unit, whereby an excess metering of the reagent substance can be intentionally initiated in the monitoring unit, an ammonia breach can be detected by means of an ammonia sensitive sensor and the ammonia storage capability can be determined.The optimized metering strategy, which is thereby guaranteed, allows for high NOx conversions with minimal ammonia slip, which is especially advantageous with regard to the stricter exhaust gas standards.

    摘要翻译： 本发明涉及一种监测具有马达块和排气管的内燃机的废气后处理系统的方法，其具有至少一个催化转化器，在该上游处， 通过引入装置引入催化转化器中的x还原，由此在限定的参考操作点将还原剂速率增加到这样的程度，直到在催化转化器后面的流动方向上检测到氨泄漏 废气管道中的氨敏感传感器的装置。 本发明还涉及一种用于监测内燃机的废气后处理系统的装置，其具有马达块和至少一个排气管道，所述至少一个废气管道具有至少一个传感器以确定 废气中的NO x x N含量和至少一个催化转化器，催化转化器中的NO x还原所需的试剂物质的上游可通过 引导装置，其中NO x传感器以及用于测量催化转化器处的温度并且测量空气输送管道中的空气以及氨敏感传感器的附加传感器，其方向为 催化转化器后面的流动保持与监测单元的主动连接，由此可以在监测单元中有意地启动试剂物质的过量计量，氨泄漏可以通过氨敏感传感器和氨的检测 可以确定托盘能力。 由此保证的优化的计量策略允许具有最小氨滑移的高NO x转换，这对于更严格的废气标准是特别有利的。