公开(公告)号：US20060137979A1

公开(公告)日：2006-06-29

申请号：US11288852

申请日：2005-11-28

申请人： Walter Strassner ,  Lothar Diehl ,  Juergen Schwarz ,  Marcus Scheffel

发明人： Walter Strassner ,  Lothar Diehl ,  Juergen Schwarz ,  Marcus Scheffel

IPC分类号： G01N27/26

CPC分类号： G01N27/4075 ,  G01N27/4071 ,  G01N27/419

摘要： A sensor element for determining gas components in gas mixtures and a method for manufacturing the sensor element are provided, the sensor element having at least one pump cell which includes a first electrode and a second electrode, the first electrode being situated in a measuring gas space of the sensor element, and the pump cell pumping oxygen into or out of the measuring gas space of the sensor element. The surface area of the second electrode is greater than that of the first electrode, and the second electrode has a diffusion barrier against the gas mixture diffusing to the second electrode, the diffusion resistance of the diffusion barrier being determined by its porosity and/or layer thickness being selected such that, given a predefined pump voltage applied to the first and second electrodes, essentially the same pump current flows between the electrodes as would flow if the diffusion barrier were not provided and both electrodes had the same surface areas exposed to the gas mixture.

摘要翻译： 提供了一种用于确定气体混合物中的气体成分的传感器元件和用于制造传感器元件的方法，所述传感器元件具有至少一个包含第一电极和第二电极的泵电池，所述第一电极位于测量气体空间 的传感器元件，并且泵浦单元将氧气输入或传出传感器元件的测量气体空间。 第二电极的表面积大于第一电极的表面积，第二电极具有抵抗扩散到第二电极的气体混合物的扩散阻挡层，扩散阻挡层的扩散阻力由其孔隙率和/或层决定 厚度被选择为使得当施加到第一和第二电极的预定的泵浦电压时，基本上相同的泵浦电流在电极之间流动，如果没有设置扩散阻挡层，则电流将流动，并且两个电极具有暴露于气体的相同的表面积 混合物。

公开(公告)号：US07976689B2

公开(公告)日：2011-07-12

申请号：US12294346

申请日：2007-02-26

申请人： Marcus Scheffel ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

发明人： Marcus Scheffel ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

IPC分类号： G01N27/41

CPC分类号： G01N27/419 ,  G01N27/4067

摘要： The invention relates to a gas sensor for determining the oxygen concentration in a gas mixture, especially in the exhaust gas of internal combustion engines. Said gas sensor comprises a pump cell having an outer pump electrode, exposed to the gas mixture, and an inner pump electrode, exposed to the gas mixture via a diffusion barrier, and a solid electrolyte body interposed between the outer pump electrode and the inner pump electrode. The gas sensor also has a reference electrode, exposed to a reference gas, and a sensor heating device. The outer pump electrode is connected to a circuit arrangement via a pump current line, the inner pump electrode via a measuring line, the reference electrode via a reference current line and the sensor heating device via two heating lines. The invention is characterized in that the pump current line and one heating line are electrically interconnected and grounded, the pump current can be supplied via the measuring line and the Nernst voltage can be tapped between the measuring line and the reference pump current line and the reference pump current flows from the reference electrode to the outer pump electrode.

摘要翻译： 本发明涉及一种气体传感器，用于确定气体混合物中的氧浓度，特别是在内燃机的废气中。 所述气体传感器包括具有暴露于气体混合物的外部泵电极和经由扩散阻挡层暴露于气体混合物的内部泵电极的泵电池和置于外部泵电极和内部泵之间的固体电解质体 电极。 气体传感器还具有参考电极，暴露于参考气体和传感器加热装置。 外泵电极通过泵电流线路连接到电路装置，内泵电极经由测量线，参考电极经由参考电流线和传感器加热装置经由两条加热线连接。 本发明的特征在于，泵电流线路和一个加热线路电互连并接地，可以通过测量线路提供泵电流，并且可以在测量线路和参考泵电流线路之间点击能斯特电压，并且参考 泵浦电流从参考电极流到外部泵电极。

公开(公告)号：US07780829B2

公开(公告)日：2010-08-24

申请号：US11632833

申请日：2005-08-18

申请人： Lothar Diehl ,  Marcus Scheffel

发明人： Lothar Diehl ,  Marcus Scheffel

IPC分类号： G01N27/409 ,  G01N27/41

CPC分类号： G01N27/4065 ,  G01N27/419

摘要： A sensor element for the determination of the concentration of gas components in a gas mixture, particularly of the concentration of gas components in the exhaust of internal combustion engines, with two electrodes, that together with a solid electrolyte constitute a pumping cell, whose outer pumping electrode is exposed to the gas mixture by way of a porous protective layer, and with a reference electrode, which is disposed on the solid electrolyte and is exposed to a reference gas, and which with a solid electrolyte and a Nernst electrode constitutes a concentration or Nernst cell, is thereby characterized in that at least periodically the Nernst voltage between the outer pumping electrode and the Nernst electrode is tapped and analyzed.

摘要翻译： 用于确定气体混合物中气体组分浓度的传感器元件，特别是用于内燃机排气中气体组分浓度的两个电极，其与固体电解质一起构成泵送室，其泵送单元 电极通过多孔保护层和配置在固体电解质上并暴露于参考气体的参比电极暴露于气体混合物，并且其中固体电解质和能斯特电极构成浓度或 能斯特电池的特征在于，至少周期性地，对外部泵浦电极和能斯特电极之间的能斯特电压进行抽头和分析。

公开(公告)号：US20090107839A1

公开(公告)日：2009-04-30

申请号：US12294346

申请日：2007-02-26

申请人： Marcus Scheffel ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

发明人： Marcus Scheffel ,  Holger Reinshagen ,  Lothar Diehl ,  Thomas Seiler

IPC分类号： G01N27/409

CPC分类号： G01N27/419 ,  G01N27/4067

摘要： The invention relates to a gas sensor for determining the oxygen concentration in a gas mixture, especially in the exhaust gas of internal combustion engines. Said gas sensor comprises a pump cell having an outer pump electrode, exposed to the gas mixture, and an inner pump electrode, exposed to the gas mixture via a diffusion barrier, and a solid electrolyte body interposed between the outer pump electrode and the inner pump electrode. The gas sensor also has a reference electrode, exposed to a reference gas, and a sensor heating device. The outer pump electrode is connected to a circuit arrangement via a pump current line, the inner pump electrode via a measuring line, the reference electrode via a reference current line and the sensor heating device via two heating lines. The invention is characterized in that the pump current line and one heating line are electrically interconnected and grounded, the pump current can be supplied via the measuring line and the Nernst voltage can be tapped between the measuring line and the reference pump current line and the reference pump current flows from the reference electrode to the outer pump electrode.

摘要翻译： 本发明涉及一种气体传感器，用于确定气体混合物中的氧浓度，特别是在内燃机的废气中。 所述气体传感器包括具有暴露于气体混合物的外部泵电极和经由扩散阻挡层暴露于气体混合物的内部泵电极的泵电池和置于外部泵电极和内部泵之间的固体电解质体 电极。 气体传感器还具有参考电极，暴露于参考气体和传感器加热装置。 外泵电极通过泵电流线路连接到电路装置，内泵电极经由测量线，参考电极经由参考电流线和传感器加热装置经由两条加热线连接。 本发明的特征在于，泵电流线路和一个加热线路电互连并接地，可以通过测量线路提供泵电流，并且可以在测量线路和参考泵电流线路之间点击能斯特电压，并且参考 泵浦电流从参考电极流到外部泵电极。

公开(公告)号：US20080245666A1

公开(公告)日：2008-10-09

申请号：US11632833

申请日：2005-08-18

申请人： Lothar Diehl ,  Marcus Scheffel

发明人： Lothar Diehl ,  Marcus Scheffel

IPC分类号： G01N27/26

CPC分类号： G01N27/4065 ,  G01N27/419

摘要： A sensor element for the determination of the concentration of gas components in a gas mixture, particularly of the concentration of gas components in the exhaust of internal combustion engines, with two electrode, that together with a solid electrolyte constitute a pumping cell, whose outer pumping electrodes is exposed to the gas mixture by way of a porous protective layer, and with a reference electrode, which is disposed on the solid electrolyte and is exposed to a reference gas, and which with a solid electrolyte and a Nernst electrode constitutes a concentration or Nernst cell, is thereby characterized in that at least periodically the Nernst voltage between the outer pumping electrode and the Nernst electrode is tapped and analyzed.

摘要翻译： 用于确定气体混合物中气体组分的浓度的传感器元件，特别是用于具有两个电极的内燃机排气中的气体组分的浓度，其与固体电解质一起构成泵送单元，其外部泵送 电极通过多孔保护层和配置在固体电解质上并暴露于参考气体的参比电极暴露于气体混合物，并且其中固体电解质和能斯特电极构成浓度或 能斯特电池的特征在于，至少周期性地，对外部泵浦电极和能斯特电极之间的能斯特电压进行抽头和分析。

公开(公告)号：US07117099B2

公开(公告)日：2006-10-03

申请号：US10490984

申请日：2002-08-13

申请人： Walter Strassner ,  Lothar Diehl ,  Andreas Andorfer

发明人： Walter Strassner ,  Lothar Diehl ,  Andreas Andorfer

IPC分类号： G01N27/00

CPC分类号： F02D41/1456 ,  G01N27/4065

摘要： In a method and a control device for operating a broadband lambda sensor, the oxygen concentration of an exhaust gas is determined based on a comparison of a Nernst voltage with a reference voltage having a nominal value; a pump current is injected into a cavity of a pump cell if a deviation is present, an electric voltage present at the pump cell being regulated in such a manner that lambda=1 prevails in the cavity, the pump current being a measure for the value of lambda in the exhaust gas; and, in order to avoid control interference in the start phase of the engine or in the cold phase of the sensor, the Nernst voltage is maintained close to the reference voltage, using a pilot control, until the Nernst voltage is an actual measure for the oxygen concentration in the cavity of the pump cell.

摘要翻译： 在用于操作宽带λ传感器的方法和控制装置中，基于能斯特电压与具有标称值的参考电压的比较来确定排气的氧浓度; 如果存在偏差，则泵电流注入到泵电池的空腔中，泵室上存在的电压以这样的方式被调节，使得腔中的λ= 1，泵电流是该值的量度 的废气中的λ; 并且为了避免在发动机起动阶段或传感器的冷相中的控制干扰，使用先导控制将能斯特电压保持接近基准电压，直到能斯特电压为 泵室内的氧气浓度。

公开(公告)号：US08240127B2

公开(公告)日：2012-08-14

申请号：US11665463

申请日：2006-01-27

申请人： Thomas Wahl ,  Walter Strassner ,  Lothar Diehl ,  Stefan Rodewald ,  Juergen Sindel

发明人： Thomas Wahl ,  Walter Strassner ,  Lothar Diehl ,  Stefan Rodewald ,  Juergen Sindel

IPC分类号： F01N3/00

CPC分类号： F02D41/1494

摘要： The invention relates to a method for the voltage-controlled performance regulation of the heating of an exhaust-gas probe in the exhaust system of an internal combustion engine. The aim of the invention is to provide a method in which the operating temperature of the probe is achieved in the shortest possible time without damage to the probe. To achieve this, the heating voltage during the heating phase of the probe is rapidly brought up to a high temperature in a start phase in relation to a subsequent phase, or a dramatic leap in temperature is achieved, preferably up to the full operating voltage and the heating voltage is then continuously or quasi-continuously reduced.

摘要翻译： 本发明涉及一种用于对内燃机的排气系统中的排气探头的加热进行电压控制性能调节的方法。 本发明的目的是提供一种方法，其中探针的操作温度在最短的时间内实现，而不损坏探头。 为了实现这一点，探针的加热阶段期间的加热电压在起始阶段快速升高到相对于后续相的高温，或者实现了显着的跨越温度，优选达到完全工作电压， 然后连续或准连续地减少加热电压。

公开(公告)号：US20050043899A1

公开(公告)日：2005-02-24

申请号：US10490984

申请日：2002-08-13

申请人： Walter Strassner ,  Lothar Diehl ,  Andreas Andorfer

发明人： Walter Strassner ,  Lothar Diehl ,  Andreas Andorfer

IPC分类号： G01N27/419 ,  F02D20060101 ,  F02D41/06 ,  F02D41/14 ,  G01N27/26 ,  G06F19/00

CPC分类号： F02D41/1456 ,  G01N27/4065

摘要： In a method and a control device for operating a broadband lambda sensor in which the oxygen concentration of an exhaust gas is determined on the basis of a comparison of a Nernst voltage with a reference voltage having a nominal value, and a pump current is injected into a cavity of a pump cell if a deviation is present, an electric voltage present at the pump cell being regulated in such a manner that lambda=1 prevails in the cavity, the pump current being a measure for the value of lambda in the exhaust gas, in order to avoid control interference in the start phase of the engine or in the cold phase of the sensor, it is provided that the Nernst voltage is maintained close to the reference voltage, using a pilot control, until the Nernst voltage is an actual measure for the oxygen concentration in the cavity of the pump cell.

摘要翻译： 在用于操作宽带λ传感器的方法和控制装置中，其中基于能斯特电压与具有标称值的参考电压的比较来确定排气的氧浓度，并且泵浦电流被注入 泵单元的空腔如果存在偏差，那么存在于泵室的电压以这样的方式被调节，使得λ= 1在空腔中占优势，泵电流是排气中的λ值的量度 为了避免在发动机起动阶段或传感器的冷相中的控制干扰，只要使用先导控制将能斯特电压保持接近参考电压，直到能斯特电压为实际值 测量泵电池腔中的氧浓度。

公开(公告)号：US06818111B1

公开(公告)日：2004-11-16

申请号：US09554041

申请日：2000-10-12

申请人： Martin Lenfers ,  Walter Strassner ,  Johann Riegel ,  Lothar Diehl

发明人： Martin Lenfers ,  Walter Strassner ,  Johann Riegel ,  Lothar Diehl

IPC分类号： G01N27409

CPC分类号： G01N27/4065

摘要： A probe is described for determining an oxygen concentration in a gas mixture, in particular in the exhaust gas of internal combustion engines, having a Nernst measuring cell, which has a first electrode (Nernst electrode) which is exposed to the gas mixture to be measured via a diffusion barrier, a second electrode (reference electrode) which is exposed to a reference gas, and a solid electrolyte body arranged between the first and the second electrode, and having a pump cell, which has a first electrode (inner pump electrode) which is exposed to the gas mixture via the diffusion barrier, a second electrode (outer pump electrode) which is exposed to the gas mixture, and a solid electrolyte body arranged between the first and the second electrode. The Nernst electrode and the inner pump electrode are connected at least in some sections via a joint supply conductor to a circuit arrangement for controlling and evaluating the probe. A joint supply conductor resistor of the Nernst electrode and of the inner pump electrode is formed by a loaded voltage divider whose individual resistors are arranged so that the negative feedback of a Nernst voltage circuit and of a pump voltage circuit is optimized, in particular maximized.

摘要翻译： 描述了一种用于确定气体混合物中的氧浓度的探针，特别是在具有能斯特测量池的内燃机的排气中的氧浓度，该能斯特测量池具有暴露于要测量的气体混合物的第一电极（能斯特电极） 通过扩散阻挡层，暴露于参考气体的第二电极（参考电极）和布置在第一和第二电极之间的固体电解质体，并且具有泵电池，其具有第一电极（内部泵电极） 其经由扩散阻挡层暴露于气体混合物，暴露于气体混合物的第二电极（外部泵电极）和布置在第一和第二电极之间的固体电解质体。 能斯特电极和内泵电极至少在某些部分经由接头供电导体连接到用于控制和评估探针的电路装置。 能斯特电极和内泵电极的联合供电导体电阻器由负载分压器形成，负载分压器的各个电阻器被布置成使得能斯特电压电路和泵浦电压电路的负反馈最优化，特别是最大化。

公开(公告)号：US07943025B2

公开(公告)日：2011-05-17

申请号：US12129761

申请日：2008-05-30

申请人： Christian Ohly ,  Walter Strassner ,  Joachim Graeber ,  Ulrich Eisele ,  Lothar Diehl ,  Thomas Seiler

发明人： Christian Ohly ,  Walter Strassner ,  Joachim Graeber ,  Ulrich Eisele ,  Lothar Diehl ,  Thomas Seiler

IPC分类号： G01N27/417

CPC分类号： G01N27/4073 ,  G01N27/4072

摘要： A sensor element is provided for determining a physical property of a measuring gas, especially of the concentration of at least one gas component in the measuring gas, which has at least one ceramic layer, a diffusion barrier adjoining the at least one ceramic layer and at least one electrode that is exposed to the measuring gas diffusing through the diffusion barrier. In order to reduce the production variations with respect to the static pressure dependence and the limiting current of the diffusion barrier), the proportions of silicon in the diffusion barrier and in the at least one ceramic layer are approximately equal and differ by not more than 1 wt. %.

摘要翻译： 提供了一种传感器元件，用于确定测量气体的物理特性，特别是测量气体中至少一种气体组分的浓度，其具有至少一个陶瓷层，与该至少一个陶瓷层邻接的扩散阻挡层 暴露于通过扩散阻挡层扩散的测量气体的至少一个电极。 为了减少关于静态压力依赖性和扩散阻挡层的限制电流的生产变化），扩散阻挡层和至少一个陶瓷层中的硅的比例近似相等并且不同于1 重量 ％。