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    GASSENSOR
    41.
    发明公开
    GASSENSOR 审中-公开

    公开(公告)号：EP1989539A1

    公开(公告)日：2008-11-12

    申请号：EP07703682.0

    申请日：2007-01-08

    申请人： Robert Bosch GmbH

    发明人： LIEDTKE, Ralf

    IPC分类号： G01N27/407 ,  G01N27/417 ,  G01N27/419

    CPC分类号： G01N27/4074 ,  G01N27/419 ,  G01N33/0054 ,  Y02A50/246

    摘要： The present invention relates to a gas sensor (1) for determining a hydrogen-containing gas component and/or its concentration in a measurement gas, in particular for determining NH3, said sensor comprising two electrodes (3, 4) which are connected, such that they conduct protons, by means of a proton conductor (2), wherein a diffusion barrier (8) is arranged between a sensor region (7) which is to be exposed to the measurement gas and a first electrode (3) which is catalytically active with respect to cleaving of the hydrogen-containing gas component. The gas sensor is distinguished by the fact that the proton conductor (2) is connected to the two electrodes (3, 4) as a hydrogen ion pump cell (5, 15).

    摘要翻译： 本发明涉及一种用于确定测量气体中的含氢气体成分和/或其浓度的气体传感器（1），特别是用于测定NH 3的气体传感器（1），所述传感器包括两个电极（3,4） 通过质子导体（2）传导质子，其中在要暴露于测量气体的传感器区域（7）和催化地形成的第一电极（3）之间设置扩散阻挡层（8） 对含氢气体成分的分解有效。 气体传感器的特征在于质子导体（2）作为氢离子泵单元（5,15）连接到两个电极（3,4）。

    Oxygen concentration detection system and vehicle control system having the same
    43.
    发明公开
    Oxygen concentration detection system and vehicle control system having the same 有权
    Sauerstoffkonzentrationserkennungssystem

    公开(公告)号：EP1898212A2

    公开(公告)日：2008-03-12

    申请号：EP07123076.7

    申请日：2004-03-18

    申请人： NGK Spark Plug Co., Ltd.

    发明人： Ieda, Norikazu ,  Oi, Yuji

    IPC分类号： G01N27/417

    CPC分类号： G01N27/4175 ,  F02D41/1495

    摘要： Oxygen concentration detection system (200) comprising an oxygen sensor (201) having a sensor element (210); an anomaly detection means (258) for detecting an anomaly of the oxygen sensor (201); a modification means (25 8d) for issuing a first instruction when the anomaly detection means does not detect an anomaly, the first instruction indicating non-detection of an anomaly, and for issuing a second instruction when the anomaly detection means detects a sensor anomaly, the second instruction corresponding to the detected anomaly; and output means (283) for through-outputting a corresponding measurement signal (281) when the modification means outputs the first instruction signal and for outputting at least a selected one of the measurement signals when the modification means outputs the second instruction signals, the selected measurement signal being modified or switched to have a level outside the corresponding range within which the level of the selected measurement signal varies in a normal state.

    摘要翻译： 氧浓度检测系统（200），其包括具有传感器元件（210）的氧传感器（201）; 用于检测氧传感器（201）的异常的异常检测装置（258）; 用于当异常检测装置没有检测到异常时发出第一指令的修改装置（25,8d），指示不检测异常的第一指令，以及当异常检测装置检测到传感器异常时发出第二指令， 对应于检测到的异常的第二指令; 以及当修改装置输出第一指令信号时输出对应的测量信号（281）的输出装置（283），并且当修改装置输出第二指令信号时，至少输出所选择的一个测量信号，所选择的输出装置 测量信号被修改或切换为具有在所选择的测量信号的电平在正常状态下变化的对应范围之外的电平。

    A DEGRADATION DETECTOR AND DETECTING METHOD FOR AN EXHAUST GAS SENSOR
    44.
    发明公开
    A DEGRADATION DETECTOR AND DETECTING METHOD FOR AN EXHAUST GAS SENSOR 有权
    劣化检测器及检测方法气体传感器研究

    公开(公告)号：EP1839048A1

    公开(公告)日：2007-10-03

    申请号：EP05819450.7

    申请日：2005-12-14

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： FUKUDA, Haruki, c/o TOYOTA JIDOSHA KABUSHIKI K.

    IPC分类号： G01N27/417

    CPC分类号： G01N27/4175

    摘要： A degradation detector of an exhaust gas sensor is disclosed. The detector comprises a first heater resistance estimator (16) for estimating a resistance of a heater that heats the exhaust gas sensor, based on a device resistance of the exhaust gas sensor; a heater resistance calculator (17) for calculating a resistance of the heater, based on a heater current of the heater; and a degradation determiner (18) for determining whether the exhaust gas sensor is degraded, by comparing the estimated resistance of the heater and the calculated resistance of the heater.

    DEVICES, SYSTEMS AND METHODS FOR TESTING GAS SENSORS AND CORRECTING GAS SENSOR OUTPUT
    46.
    发明公开
    DEVICES, SYSTEMS AND METHODS FOR TESTING GAS SENSORS AND CORRECTING GAS SENSOR OUTPUT 有权
    方法和装置用于气体传感器的检测，并用于气体传感器的输出的校正

    公开(公告)号：EP1743165A1

    公开(公告)日：2007-01-17

    申请号：EP05741030.0

    申请日：2005-04-28

    申请人： Mine Safety Appliances Company

    发明人： SCHEFFLER, Towner, B.

    IPC分类号： G01N27/416 ,  G01N27/417 ,  G01N33/00

    CPC分类号： G01N33/0006 ,  G01N27/404

    摘要： A method of adjusting the output of an electrochemical sensor includes the steps of: simulating the presence of an analyte gas electronically; measuring a response of the sensor to the electronic simulation; and adjusting the output of the sensor as a function of the measured response to the electronic simulation. The method of adjusting the output of an electrochemical sensor having a working electrode and a counter electrode preferably includes the steps of: electronically causing a current flow between the working electrode and the counter electrode; measuring a response of the sensor to the current demand; and using the measured response to adjust the sensor output during sampling of an analyte gas.

    SENSORELEMENT ZUR BESTIMMUNG DER SAUERSTROFFKONZENTRATION EINES ABGASES EINER BRENNKRAFTMASCHINE UND VERFAHREN ZU DESSEN HERSTELLUNG
    47.
    发明公开
    SENSORELEMENT ZUR BESTIMMUNG DER SAUERSTROFFKONZENTRATION EINES ABGASES EINER BRENNKRAFTMASCHINE UND VERFAHREN ZU DESSEN HERSTELLUNG 有权
    传感器元件，用于确定废气甲SAUERSTROFFKONZENTRATION OF MAKING的内燃发动机和方法

    公开(公告)号：EP1671114A1

    公开(公告)日：2006-06-21

    申请号：EP04766471.9

    申请日：2004-08-11

    申请人： ROBERT BOSCH GMBH

    发明人： WAHL, Bjoern ,  GUENSCHEL, Harald ,  FICKER, Berthold

    IPC分类号： G01N27/407 ,  G01N27/417

    CPC分类号： G01N27/4072 ,  G01N27/4071 ,  G01N27/419

    摘要： The invention relates to a sensor element (10) serving to detect a physical property of a gas to be measured, preferably to determine the concentration of oxygen or the temperature of an exhaust gas of a combustion engine. The sensor element (10) comprises a first solid-electrolyte film (21), a second solid-electrolyte film (22), and a diffusion barrier (41) that is placed in a layer plane between the first and second solid-electrolyte films (21, 22). A gas-impermeable or at least largely gas-impermeable covering layer (44) is provided on the diffusion barrier (41) in areas so that, in the areas in which the covering layer (44) is situated on the diffusion barrier (41), the diffusion of the gas to be measured into or out of the diffusion barrier (41) is at least largely prevented. The invention also relates to a method for producing a sensor element (10), whereby the sensor element (10) has a diffusion barrier (41) that is removed by a laser (81) in order to set the diffusion resistance of the diffusion barrier (41). The diffusion barrier (41) is placed between a first and a second solid-electrolyte film (21, 22). The invention also relates to another method with which a diffusion barrier (41) is placed between a first and a second solid-electrolyte film (21, 22). A covering layer (44) is placed on a side of the diffusion barrier (41) facing a gas to be measured located outside of the sensor element (10). This covering layer is gas-impermeable or at least largely gas-impermeable after a sintering process. The covering layer (44) is removed in order to set the diffusion resistance of the diffusion barrier (41).

    Gas concentration measuring apparatus with failure monitor
    49.
    发明公开
    Gas concentration measuring apparatus with failure monitor 有权
    Gaskonzentration-Messvorrichtung mit Fehlerdetektor

    公开(公告)号：EP1582726A2

    公开(公告)日：2005-10-05

    申请号：EP05007105.9

    申请日：2005-03-31

    申请人： DENSO CORPORATION

    发明人： Kawase, Tomoo ,  Kurokawa, Eiichi

    IPC分类号： F02D41/22 ,  G01N27/417

    CPC分类号： F02D41/1495 ,  F02D41/1455 ,  G01N27/4175 ,  G01N33/007

    摘要： A gas concentration measuring apparatus for use in air-fuel ratio control of motor vehicle engines is provided which is designed to detect and identify a cause of failure in operation of an A/F sensor. The apparatus works to apply the voltage to a sensor element and sweep it to produce a change in electrical current flowing through the sensor element for measuring the impedance of the sensor element. The apparatus samples values of the change in the current, a sensor output indicating an air-fuel ratio of mixture supplied to the engine, etc., before and/or after the sensor element is activated and uses a combination thereof to identify the cause of the failure of the A/ F sensor.

    摘要翻译： 提供了一种用于汽车发动机的空燃比控制的气体浓度测量装置，其被设计成检测和识别A / F传感器操作失败的原因。 该装置用于将电压施加到传感器元件并对其进行扫描以产生流过传感器元件的电流的变化，以测量传感器元件的阻抗。 该装置在传感器元件被激活之前和/或之后采样电流变化的值，表示提供给发动机的混合物的空燃比等的传感器输出，并且使用它们的组合来识别 A / F传感器的故障。