公开(公告)号：US06699383B2

公开(公告)日：2004-03-02

申请号：US10156483

申请日：2002-05-28

申请人： Bertrand Lemire ,  Tim Walde

发明人： Bertrand Lemire ,  Tim Walde

IPC分类号： G01N27407

CPC分类号： G01N27/4074

摘要： A thick-film measurement sensor includes two measurement cells and is used to measure the NOx concentration in the exhaust gas from an internal combustion engine. The 1/&lgr; value of the exhaust gas is determined from an oxygen ion pump current flowing in the first measurement cell, for example, by a characteristic diagram, and, a measurement error, which can be used to correct the measured NOx concentration, is determined from this 1/&lgr; value, for example, by a characteristic curve that has previously been determined in a calibration measurement. The invention is based on the discovery that the measurement error is dependent on the air ratio in the exhaust gas. If this is expressed by the 1/&lgr; value, there is no need for a complex division calculation during the correction.

摘要翻译： 厚膜测量传感器包括两个测量单元，并用于测量来自内燃机的废气中的NOx浓度。 废气的1 /λ值由例如通过特性图从第一测量单元中流动的氧离子泵浦电流确定，并且可用于校正测量的NOx浓度的测量误差为 从该1 /λ值确定，例如，通过先前在校准测量中确定的特性曲线。 本发明基于以下发现：测量误差取决于废气中的空气比。 如果这用1 /λ值表示，则在校正期间不需要复杂的分割计算。

公开(公告)号：US06401453B1

公开(公告)日：2002-06-11

申请号：US09666527

申请日：2000-09-18

申请人： Bertrand Lemire

发明人： Bertrand Lemire

IPC分类号： F01N300

CPC分类号： F01N9/005 ,  F01N3/22 ,  F01N11/00 ,  F01N11/007 ,  F01N2550/02 ,  F01N2560/023 ,  F02P9/002 ,  F02P15/003 ,  Y02A50/2322 ,  Y02T10/47

摘要： A method and device for checking the functional ability of a catalyst in an exhaust duct of an internal combustion engine is described. The method and device determines a degree of conversion as a function of the temperature of the catalyst during a heating-up phase. Evaluation of the relationship between the degree of conversion and the temperature, the relationship changing with the age of the catalyst, allows a non-functional catalyst to be checked and diagnosed with high accuracy.

摘要翻译： 描述了一种用于检查内燃机的排气管中的催化剂的功能能力的方法和装置。 该方法和装置确定在加热阶段期间作为催化剂温度的函数的转化程度。 转化度与温度之间的关系的评价与催化剂的年龄变化的关系允许以高精度检查和诊断非功能性催化剂。

公开(公告)号：US5767386A

公开(公告)日：1998-06-16

申请号：US755457

申请日：1996-11-22

申请人： Bertrand Lemire ,  Willibald Schuerz

发明人： Bertrand Lemire ,  Willibald Schuerz

IPC分类号： F01N11/00 ,  G01N39/02 ,  F02D41/14 ,  G01N27/46

CPC分类号： F01N13/008 ,  F01N11/00 ,  F01N11/007 ,  F01N2550/02 ,  Y02T10/47

摘要： An exhaust gas sensor has first and second sensor elements. Exhaust gas surroundings of the first sensor element are catalytically activated, so that an oxygen partial pressure which is in equilibrium will always be measured by the first sensor element, regardless of the conversion capability of a catalytic converter. The exhaust gas surroundings of the second sensor element are separate from the exhaust gas surroundings of the first sensor element, so that the exhaust gas surroundings of the second sensor element are not catalytically active. As a function of the conversion capability of the catalytic converter, the second sensor element measures either an equilibrium oxygen partial pressure or a free oxygen partial pressure, which are of different magnitudes. A malfunction of the catalytic converter is detected by comparing measurement signals of the first and second sensor elements.

摘要翻译： 废气传感器具有第一和第二传感器元件。 第一传感器元件的废气环境被催化活化，使得处于平衡状态的氧分压将始终由第一传感器元件测量，而不管催化转化器的转化能力如何。 第二传感器元件的废气环境与第一传感器元件的排气周围分离，使得第二传感器元件的排气周围不具有催化活性。 作为催化转化器的转化能力的函数，第二传感器元件测量不同大小的平衡氧分压或游离氧分压。 通过比较第一和第二传感器元件的测量信号来检测催化转化器的故障。

公开(公告)号：US6101865A

公开(公告)日：2000-08-15

申请号：US101057

申请日：1998-06-29

申请人： Hans Meixner ,  Susanne Kornely ,  Dieter Hahn ,  Hermann Leiderer ,  Bertrand Lemire ,  Birgitta Hacker

发明人： Hans Meixner ,  Susanne Kornely ,  Dieter Hahn ,  Hermann Leiderer ,  Bertrand Lemire ,  Birgitta Hacker

IPC分类号： G01N27/12 ,  G01N27/407 ,  G01N33/00 ,  G01N27/16 ,  B32B9/00 ,  G01N27/00 ,  H01L7/00

CPC分类号： G01N33/0014 ,  G01N27/4077

摘要： A porous Al.sub.2 O.sub.3 thick film covers the SrTiO.sub.3 layer of an oxygen sensor, said SrTiO.sub.3 layer being contacted by means of two Pt electrodes and deposited on an Al.sub.2 O.sub.3 substrate. The electrically insulating Al.sub.2 O.sub.3 layer bears a protective layer, which is exposed to the exhaust gas and is preferably also made of SrTiO.sub.3. This construction ensures that the output signal of the sensor representing the oxygen partial pressure then depends only on the resistance or, respectively, conductivity value of the non-contaminated SrTiO.sub.2 sensor layer.

摘要翻译： 多孔Al 2 O 3厚膜覆盖氧传感器的SrTiO 3层，所述SrTiO 3层通过两个Pt电极接触并沉积在Al 2 O 3衬底上。 电绝缘的Al 2 O 3层具有暴露于废气的保护层，并且优选也由SrTiO 3制成。 这种结构确保代表氧分压的传感器的输出信号然后仅取决于未污染的SrTiO 2传感器层的电阻或电导率值。

公开(公告)号：US5974787A

公开(公告)日：1999-11-02

申请号：US884773

申请日：1997-06-30

申请人： Bertrand Lemire ,  Willibald Schurz

发明人： Bertrand Lemire ,  Willibald Schurz

IPC分类号： G01N27/12 ,  F01N3/20 ,  F01N11/00 ,  G01N27/26 ,  G01N27/417 ,  F01N3/00

CPC分类号： G01N27/4175 ,  F01N11/007 ,  F01N2550/02 ,  Y02T10/47

摘要： A method for testing the functional capability of a catalytic converter of an internal combustion engine uses an exhaust-gas probe having a measuring electrode for measuring the resistance of a metal oxide layer having low catalytic activity. The resistance of the metal oxide layer is dependent on the oxygen partial pressure in the exhaust gas, for a predetermined air factor. The conversion rate of a catalytic converter has an effect on the oxygen partial pressure in the exhaust gas downstream of the catalytic converter, so that the resistance of the metal oxide layer depends on the conversion efficiency of the catalytic converter. It is thus possible to test the functional capability of the catalytic converter with the simply constructed exhaust-gas probe using a simple resistance measurement.

摘要翻译： 用于测试内燃机的催化转化器的功能能力的方法使用具有用于测量具有低催化活性的金属氧化物层的电阻的测量电极的排气探针。 对于预定的空气因子，金属氧化物层的电阻取决于废气中的氧分压。 催化转化器的转化率对催化转化器下游的排气中的氧分压具有影响，使得金属氧化物层的电阻取决于催化转化器的转化效率。 因此，可以使用简单的电阻测量来简单地构造的排气探测器来测试催化转化器的功能能力。

公开(公告)号：US08221613B2

公开(公告)日：2012-07-17

申请号：US10557585

申请日：2005-03-15

申请人： Bertrand Lemire

发明人： Bertrand Lemire

IPC分类号： G01N27/407

CPC分类号： G01N27/419

摘要： A gas measuring system, having a measurement sensor (1) which records an exhaust gas from an internal combustion engine and has an outer electrode (6), which is exposed to the exhaust gas to be measured, a first measuring cell (4), a second measuring cell (8) that is connected to the first measuring cell (4), and in which a measuring electrode (10) is arranged, and a reference electrode (11) that is exposed to the ambient air. The measuring cells (4, 8) are located in a solid electrolyte (2), and all the electrodes (10, 11) are in contact with the solid electrolyte. A circuit which in a first pump flow (Ip0) pumps oxygen ions between the first measuring cell (4) and the outer electrode (6), in a second pump flow (Ip1) pumps oxygen ions between the second measuring cell (8) and the outer electrode (6), and in a third pump flow (Ip2) pumps oxygen ions between the measuring electrode (10) and the outer electrode (6), and which comprises a control unit (C) which records Nernst voltages between the measuring cells (4, 8) and a reference electrode (11).

摘要翻译： 一种气体测量系统，具有测量传感器（1），其记录来自内燃机的废气，并具有暴露于被测量废气的外部电极（6），第一测量单元（4）， 连接到第一测量单元（4）并且其中布置有测量电极（10）的第二测量单元（8）和暴露于周围空气的参考电极（11）。 测量电池（4,8）位于固体电解质（2）中，所有电极（10,11）与固体电解质接触。 在第二泵流（Ip1）中，在第一泵流（Ip0）中泵送第一测量单元（4）和外电极（6）之间的氧离子的电路泵浦第二测量单元（8）和 外部电极（6），并且在第三泵流（Ip2）中泵送测量电极（10）和外部电极（6）之间的氧离子，并且包括控制单元（C），该控制单元（C）在测量 细胞（4,8）和参比电极（11）。

公开(公告)号：US20090242426A1

公开(公告)日：2009-10-01

申请号：US11922799

申请日：2006-06-13

申请人： Muammer Kilinc ,  Bertrand Lemire

发明人： Muammer Kilinc ,  Bertrand Lemire

IPC分类号： G01N27/403 ,  G01N27/26

CPC分类号： G01N27/419

摘要： Presented is a gas sensor and method for detecting the quantity of a measurement gas contained in a gas mixture. The sensor includes a prechamber, a first pump device disposed in the prechamber configured to set the partial pressure of a free gas component of a detection gas to a predetermined value, and a measuring chamber separated from the prechamber by a diffusion barrier. The measuring chamber includes a detection device configured to determine the concentration of the detection gas. The sensor further includes an inlet chamber separated from the prechamber by a diffusion barrier, a second pump device disposed in the inlet chamber configured to set the partial pressure of the free gas component of the detection gas to a predetermined value, and a third pump device disposed in the measuring chamber and configured to set the partial pressure of the free gas component to a predetermined value.

摘要翻译： 提出了一种用于检测气体混合物中所含的测量气体的量的气体传感器和方法。 所述传感器包括预燃室，设置在所述预燃室中的第一泵装置，其配置成将所述检测气体的游离气体成分的分压设定为预定值，以及通过扩散阻挡层与所述预燃室分离的测量室。 测量室包括被配置为确定检测气体的浓度的检测装置。 所述传感器还包括通过扩散阻挡件与所述预制室隔开的入口室，设置在所述入口室中的第二泵装置，其被配置成将所述检测气体的自由气体成分的分压设定为预定值;以及第三泵装置 设置在所述测量室中并且被配置为将所述自由气体成分的分压设定为预定值。

公开(公告)号：US20080011051A1

公开(公告)日：2008-01-17

申请号：US10557585

申请日：2005-03-15

申请人： Bertrand Lemire

发明人： Bertrand Lemire

IPC分类号： G01N7/00

CPC分类号： G01N27/419

摘要： A gas measuring system, having a measurement sensor (1) which records an exhaust gas from an internal combustion engine and has an outer electrode (6), which is exposed to the exhaust gas to be measured, a first measuring cell (4), a second measuring cell (8) that is connected to the first measuring cell (4), and in which a measuring electrode (10) is arranged, and a reference electrode (11) that is exposed to the ambient air. The measuring cells (4, 8) are located in a solid electrolyte (2), and all the electrodes (10, 11) are in contact with the solid electrolyte. A circuit which in a first pump flow (Ip0) pumps oxygen ions between the first measuring cell (4) and the outer electrode (6), in a second pump flow (Ip1) pumps oxygen ions between the second measuring cell (8) and the outer electrode (6), and in a third pump flow (Ip2) pumps oxygen ions between the measuring electrode (10) and the outer electrode (6), and which comprises a control unit (C) which records Nernst voltages between the measuring cells (4, 8) and a reference electrode (11).

摘要翻译： 一种气体测量系统，具有测量传感器（1），其记录来自内燃机的废气，并具有暴露于被测量废气的外部电极（6），第一测量单元（4）， 连接到第一测量单元（4）并且其中布置有测量电极（10）的第二测量单元（8）和暴露于周围空气的参考电极（11）。 测量电池（4,8）位于固体电解质（2）中，所有电极（10,11）与固体电解质接触。 在第二泵流（Ip1）中，在第一泵流（Ip 0）中泵送第一测量单元（4）和外电极（6）之间的氧离子的电路在第二测量单元（8） ）和外部电极（6），并且在第三泵流（Ip 2）中，在测量电极（10）和外部电极（6）之间泵送氧离子，并且包括控制单元（C），其记录能斯特电压 在测量单元（4,8）和参考电极（11）之间。