公开(公告)号：US06270639B1

公开(公告)日：2001-08-07

申请号：US09239291

申请日：1999-01-29

申请人： Martin Lenfers ,  Olaf Jach ,  Harald Neumann ,  Walter Strassner ,  Johann Riegel ,  Lothar Diehl

发明人： Martin Lenfers ,  Olaf Jach ,  Harald Neumann ,  Walter Strassner ,  Johann Riegel ,  Lothar Diehl

IPC分类号： G01N27409

CPC分类号： G01N27/417

摘要： An electrochemical sensor determining a gas concentration of the measuring gas. The sensor has an electrochemical element including a first solid electrolyte body having an electrochemical pump cell and a first (external pump) and a second (internal pump) electrode and having a gas chamber which is connected to the measuring gas chamber via a gas supply opening and in which the second electrode is arranged. The electrochemical element also includes a second solid electrolyte body having an electrochemical sensor cell (e.g., a Nernst cell) and a third and fourth electrode, each electrode having a lead for the electrical contacting. The leads of the first and second electrodes are decoupled capacitively from the lead of at least the fourth electrode by a device.

摘要翻译： 确定测量气体的气体浓度的电化学传感器。 传感器具有电化学元件，其包括具有电化学泵电池的第一固体电解质体和第一（外部泵）和第二（内部泵）电极，并且具有通过气体供给开口连接到测量气体室的气体室 并且其中布置有第二电极。 电化学元件还包括具有电化学传感器单元（例如能斯特电池）和第三和第四电极的第二固体电解质体，每个电极具有用于电接触的引线。 第一和第二电极的引线通过器件从至少第四电极的引线电容性地去耦合。

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：US06811664B2

公开(公告)日：2004-11-02

申请号：US10016787

申请日：2001-10-26

申请人： Martin Lenfers ,  Harry Braun ,  Walter Strassner ,  Lothar Diehl

发明人： Martin Lenfers ,  Harry Braun ,  Walter Strassner ,  Lothar Diehl

IPC分类号： G01N2741

CPC分类号： G01N27/419

摘要： A sensor element for determining the concentration of a gas component in a gas mixture, particularly for determining the oxygen concentration in exhaust gases of internal combustion engines. The sensor element includes at least one pump cell, which has at least one first pump electrode located in a measuring gas chamber and at least one second pump electrode, located on a surface of the sensor element facing the gas mixture, as well as at least one concentration cell, which has at least one reference electrode located in a reference gas chamber and at least one measuring electrode, located in the measuring gas chamber, which cooperates with the reference electrode. The measuring gas chamber and the reference gas chamber are essentially located in the same layer level (plane) of the sensor element which has a layered construction. At least one barrier layer is provided which, at least to a large extent, prevents ionic conduction between at least one electrode of the pump cell and at least one electrode of the concentration cell.

摘要翻译： 一种传感器元件，用于确定气体混合物中气体组分的浓度，特别是用于确定内燃机废气中的氧气浓度。 传感器元件包括至少一个泵电池，其具有位于测量气室中的至少一个第一泵电极和位于传感器元件面向气体混合物的表面上的至少一个第二泵电极，以及至少 一个浓度单元，其具有位于参考气室中的至少一个参考电极和位于测量气室中的与参考电极配合的至少一个测量电极。 测量气室和参考气室基本上位于具有分层结构的传感器元件的相同层级（平面）中。 提供至少一个阻挡层，其至少在很大程度上防止泵浦电池的至少一个电极和浓缩电池的至少一个电极之间的离子传导。

公开(公告)号：US5549804A

公开(公告)日：1996-08-27

申请号：US315970

申请日：1994-09-30

申请人： Gerhard Hotzel ,  Harald Neumann ,  Walter Strassner ,  Johann Riegel

发明人： Gerhard Hotzel ,  Harald Neumann ,  Walter Strassner ,  Johann Riegel

IPC分类号： G01N27/419 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409 ,  G01N27/26

CPC分类号： G01N27/4071 ,  G01N27/4065

摘要： The invention is directed to an arrangement for detecting the oxygen content in the exhaust gas of an internal combustion engine. The arrangement includes a concentration measuring cell operating pursuant to the Nernst principle. The concentration measuring cell has a measuring electrode, a solid electrolyte and a reference electrode and a series circuit which includes a direct voltage source and a series resistor. The series circuit connects the measuring electrode to the reference electrode. The measuring electrode communicates with the exhaust gas of the internal combustion engine and is connected to the reference electrode via the solid electrolyte. The reference electrode communicates with the reference gas volume. The reference gas volume is partitioned from the exhaust gas and from the ambient air so that a particle exchange between the reference gas volume and the exhaust gas as well as between the reference gas volume and the ambient air is at least made more difficult. The output voltage of the concentration measuring cell defines a measure for the difference of the oxygen concentrations in the exhaust gas of the engine and the reference gas volume. The output voltage of the direct voltage source and/or the value of the series resistance is so pregiven that an electric current Ip is always so directed that oxygen is transported from the exhaust gas to the reference gas volume independently of the output voltage of the concentration measuring cell. The current Ip flows in a current circuit including direct voltage source, series resistance and concentration measuring cell.

摘要翻译： 本发明涉及一种用于检测内燃机排气中氧含量的装置。 该装置包括根据恩斯特原理运行的浓度测量池。 浓度测量单元具有测量电极，固体电解质和参考电极以及包括直流电压源和串联电阻器的串联电路。 串联电路将测量电极连接到参考电极。 测量电极与内燃机的废气连通，并通过固体电解质与参比电极连接。 参考电极与参考气体体积连通。 参考气体体积与废气和环境空气隔开，使得参考气体体积和废气之间以及参考气体体积和环境空气之间的颗粒交换至少变得更困难。 浓度测量池的输出电压定义了发动机废气中的氧气浓度与参考气体体积之差的量度。 直流电压源的输出电压和/或串联电阻的值被假定为电流Ip始终如此指示氧气从排气转移到参考气体体积，而与输出电压的浓度无关 测量池。 电流Ip在包括直流电压源，串联电阻和浓度测量单元的电流电路中流动。

公开(公告)号：US5496461A

公开(公告)日：1996-03-05

申请号：US316107

申请日：1994-09-30

申请人： Gerhard Ho/ tzel ,  Harald Neumann ,  Walter Strassner ,  Johann Riegel

发明人： Gerhard Ho/ tzel ,  Harald Neumann ,  Walter Strassner ,  Johann Riegel

IPC分类号： G01N27/41 ,  G01N27/407 ,  G01N27/419 ,  G01N27/26

CPC分类号： G01N27/4071 ,  G01N27/419

摘要： The invention relates to a measuring sensor having an internal pump oxygen reference atmosphere which, in turn, has a device for compensating pressure which is so dimensioned that, on the one hand, mechanical damage because of overpressure in the reference volume is reliably prevented and, on the other hand, external influences on the composition of the pumped measured gas atmosphere are substantially excluded. The device for compensating for pressure is so dimensioned according to the invention that the particle exchange between ambient air and gas to be measured is opposed by a resistance which is defined by the limit current principle.

摘要翻译： 本发明涉及一种具有内部泵氧气参考气氛的测量传感器，该测量传感器又具有用于补偿压力的装置，其尺寸被确定为一方面可以可靠地防止由于参考体积中的过压引起的机械损坏， 另一方面，对所抽取的测量气体气氛的组成的外部影响基本上被排除。 根据本发明，用于补偿压力的装置的尺寸如此，即待测量的环境空气和气体之间的颗粒交换与由极限电流原理定义的电阻相反。

公开(公告)号：US5494557A

公开(公告)日：1996-02-27

申请号：US316108

申请日：1994-09-30

申请人： Gerhard Hotzel ,  Harald Neumann ,  Walter Strassner ,  Johann Riegel

发明人： Gerhard Hotzel ,  Harald Neumann ,  Walter Strassner ,  Johann Riegel

IPC分类号： G01N27/41 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409 ,  G01N27/419

CPC分类号： G01N27/4071 ,  G01N27/4065

摘要： The invention is directed to a method of operating an exhaust-gas probe having a pumped reference atmosphere in a relatively closed volume. In this method, the oxygen ion current, which carries the pump current Ip to the reference atmosphere, is temporarily increased under specific conditions. In this way, an adulteration of the reference atmosphere can be more rapidly eliminated. This adulteration can occur because of fuel particles which diffuse in.

摘要翻译： 本发明涉及一种在相对封闭的体积内操作具有抽吸基准气氛的排气探针的方法。 在这种方法中，在特定条件下，将泵浦电流Ip与参考气体携带的氧离子电流暂时增加。 这样就可以更加迅速地消除对参考气氛的掺假。 这种掺假可能因为扩散的燃料颗粒而发生。

公开(公告)号：US6084414A

公开(公告)日：2000-07-04

申请号：US61438

申请日：1998-04-16

申请人： Harald Neumann ,  Walter Strassner ,  Lothar Diehl

发明人： Harald Neumann ,  Walter Strassner ,  Lothar Diehl

IPC分类号： G01N27/409 ,  G01N27/26 ,  G01N27/407 ,  G01R31/02 ,  G01N27/416

CPC分类号： G01N27/4071

摘要： A method for testing for leakage currents in an oxygen probe, in particular a planar lambda probe, having at least one heating element, one external electrode and one internal electrode, and a solid electrolyte arranged between the electrodes, a first voltage being applied to the heating element. A second voltage is applied to at least one of the electrodes, the second voltage being selected so that the potential difference between the electrode and at least one area of the heating element is positive.

摘要翻译： 一种用于测试氧探针中的漏电流的方法，特别是具有至少一个加热元件，一个外部电极和一个内部电极的平面λ探针，以及布置在电极之间的固体电解质，第一电压施加到 加热元件 将第二电压施加到至少一个电极，选择第二电压使得电极与加热元件的至少一个区域之间的电位差为正。

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：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。