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    Gas sensor and method of measuring quantity of specific compounds in measuring gas
    81.
    发明公开
    Gas sensor and method of measuring quantity of specific compounds in measuring gas 失效
    用于测量气体检测特定化合物的量的气体传感器和方法

    公开(公告)号：EP0798557A2

    公开(公告)日：1997-10-01

    申请号：EP97302000.1

    申请日：1997-03-24

    申请人： NGK INSULATORS, LTD.

    发明人： Kato, Nobuhide ,  Ina, Noriyuki

    IPC分类号： G01N27/419 ,  G01N27/406

    CPC分类号： G01N27/4065 ,  G01N27/419

    摘要： A gas sensor for measuring a quantity of specific component in a measuring gas includes a main pump means (1) which has an electrochemical pump cell. The electrochemical pump cell includes a solid electrolyte partition (2) exposed to external space, an inner pump electrode (3) and an outer pump electrode (4) formed on the inner surface and outer surface of the solid electrolyte partition, respectively. The main pump means treats oxygen contained in the measuring gas introduced from the outer space by pumping processing on the basis of a control voltage applied between the inner pump electrode and the outer pump electrode. An RLC element (8) which has a specific electric characteristic value corresponding to a characteristic value of the electrochemical pump cell is connected in parallel with the electrochemical pump cell.

    摘要翻译： 用于测量气体中测量特定成分的量的气体传感器包括主泵装置（1），其具有电化学泵单元。 电化学泵单元包括暴露于外部的空间内泵电极（3）和至外部泵电极的固体电解质分区（2）（4）形成在固体电解质隔板的内表面和外表面上，分别。 主泵装置包含在由内泵电极和外部泵电极之间施加的控制电压的基础上泵送处理从外部空间引入的测量气体中的氧气对待。 其中有一个特定的电特性值对应于所述电化学泵浦电池的特性值的RLC元件（8）并联连接与电化学泵单元。

    Gas sensor
    82.
    发明公开
    Gas sensor 失效
    气体传感器

    公开(公告)号：EP0797095A2

    公开(公告)日：1997-09-24

    申请号：EP97301891.4

    申请日：1997-03-20

    申请人： NGK INSULATORS, LTD.

    发明人： Kato, Nobuhide ,  Nakagaki, Kunihiko

    IPC分类号： G01N27/407 ,  G01N27/419

    CPC分类号： G01N27/4074 ,  G01N27/419

    摘要： Disclosed is a gas sensor comprising inner pumping electrodes (64a to 64d) arranged on upper and lower surfaces and both side surfaces in a first chamber (60) so that O 2 contained in a measurement gas (G) introduced through a first diffusion rate-determining section (56) is effectively removed by the aid of a pumping voltage (Vp1) applied between the inner pumping electrodes (64a to 64d) and an outer pumping electrode (66). After the removal of O 2 , the measurement gas (G) is introduced into a second chamber (62) through a second diffusion rate-determining section (58) so that oxides contained in the measurement gas (G) are decomposed by the aid of a detecting electrode (82), or O 2 is bound to inflammable gases contained in the measurement gas (G). An amount of oxygen moved or transported in accordance therewith is measured to determine the concentration of the oxides or the inflammable gases. Accordingly, the oxygen contained in the measurement gas can be effectively controlled, making it possible to highly accurately measure the oxides or the inflammable gases.

    摘要翻译： 公开了一种气体传感器，其包括布置在第一室（60）中的上表面和下表面以及两个侧表面上的内部泵浦电极（64a至64d），使得包含在测量气体（G）中的O2通过第一扩散速率确定 通过施加在内部泵浦电极（64a至64d）和外部泵浦电极（66）之间的泵浦电压（Vp1）有效地去除部分（56）。 在去除O2之后，测量气体（G）通过第二扩散速率确定部分（58）被引入到第二室（62）中，使得测量气体（G）中包含的氧化物借助于 检测电极（82）或O2与测量气体（G）中所含的易燃气体结合。 测量随之移动或输送的氧气量，以确定氧化物或可燃气体的浓度。 因此，可以有效地控制测量气体中包含的氧气，使得可以高度精确地测量氧化物或可燃气体。

    Exhaust gas sensor diagnostic
    83.
    发明公开
    Exhaust gas sensor diagnostic 失效
    诊断排气传感器

    公开(公告)号：EP0740152A3

    公开(公告)日：1997-03-12

    申请号：EP96200739.9

    申请日：1996-03-18

    申请人： GENERAL MOTORS CORPORATION

    发明人： Wang, Da Yu ,  Oberdier, Larry Max

    IPC分类号： G01N27/419

    CPC分类号： G01N27/419 ,  G01N27/4175

    摘要： A diagnostic apparatus applied to internal combustion engine exhaust gas sensors employing electrochemical polarographic principles indicates sensor operation relative to a current limiting operating region in which a sensor output signal indicates oxygen concentration in the exhaust gas. A sensor drive signal is controllably perturbed and sensor sensitivity monitored by monitoring the sensor response to the perturbation. Current limiting operation may be diagnosed and indicated when the sensor response indicates an insensitivity to the perturbation.

    SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES LAMBDA WERTES VON GASGEMISCHEN
    84.
    发明授权
    SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES LAMBDA WERTES VON GASGEMISCHEN 失效
    传感器元件用于确定气体混合物的λ值极限电流传感器。

    公开(公告)号：EP0386006B2

    公开(公告)日：1995-07-12

    申请号：EP88907117.1

    申请日：1988-08-20

    申请人： ROBERT BOSCH GMBH

    发明人： FRIESE, Karl-Hermann ,  GRÜNWALD, Werner

    IPC分类号： G01N27/419

    CPC分类号： G01N27/4071 ,  G01N27/4072

    摘要： A sensor element for limit sensors for determining the lambda value of gaseous mixtures comprises at least two mutually opposite internal pump electrodes (8 and 8') arranged in a diffusion channel (7). In this way the undesirable electrode polarization which readily occurs in sensor elements with a single internal pump electrode is substantially reduced. At the same time, better use is made of the noble metals required to make the pump electrodes.

    A device for determining activation of an air-fuel ratio sensor
    88.
    发明公开
    A device for determining activation of an air-fuel ratio sensor 失效
    Vorrichtung zur Bestimmung der Betriebsbereitschaft einer Lamda-Sonde。

    公开(公告)号：EP0507115A2

    公开(公告)日：1992-10-07

    申请号：EP92104075.4

    申请日：1992-03-10

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Suzuki, Hiroyoshi, Mitsubishi Denki K. K.

    IPC分类号： G01N27/419 ,  F02D41/14

    CPC分类号： G01N27/4065 ,  F02D41/148 ,  F02D41/1494

    摘要： A device for determining activation of an air-fuel ratio sensor which comprises an air-fuel ratio sensor (1) comprising an oxygen concentration cell element (11b) and an oxygen pump element (11a), arranged at an exhaust system of an engine, made of an oxygen-ion-conductive-solid-electrolyte material respectively provided with electrodes and a diffusion chamber into which exhaust gas of the engine diffuses, and a heater (12) which heats the oxygen concentration cell element (11b) and the oxygen pump element (11a); a pump current controller (21) for controlling pump current which flows in the oxygen pump element so that electromotive force of the oxygen concentration cell element takes on a predetermined reference voltage; a pump current detector (22) for detecting the pump current controlled by the pump current controller; a switch (25) for cutting supply of the pump current; a pump voltage detector (24) for detecting pump voltage applied to the oxygen pump element; a heater power supply (12); a memory for storing a range of allowed pump voltages or a target air-fuel ratio; a timer for starting to supply power to the heater in a pump-current-cut state and for releasing the cutting supply of the pump current after a predetermined time interval; and an air-fuel ratio controller (7) which has the pump current controller control the pump current, detects a pump voltage, determines that the air-fuel sensor (1) is activated when the pump voltage falls in the previously memorized pump voltage allowable range, and releases the pump-current-cut state.

    摘要翻译： 一种用于确定空燃比传感器的启动的装置，其包括空燃比传感器（1），所述空燃比传感器（1）包括氧浓度电池元件（11b）和设置在发动机的排气系统处的氧气泵元件（11a），所述排气系统由 分别设置有电极并且插入扩散室的氧离子 - 导电固体电解质材料，其中发动机的排气被扩散和引入;以及加热器（12），其加热氧浓度电池元件（11b）和氧气 泵元件（11a）; 泵电流控制装置（21），用于控制在氧泵元件中流动的泵浦电流，使得氧浓缩电池元件的电动势成为预定的参考电压; 用于检测由所述泵电流控制装置控制的泵电流的泵电流检测装置（22）; 用于切断泵电流供应的泵电流切断装置（25）; 用于检测施加到氧气泵元件的泵电压的泵电压检测装置（24） 用于向加热器（12）供电的加热器供电装置; 用于预先存储泵电流的泵电压容许范围或发动机的目标空燃比的记忆装置; 定时器装置，用于在来自加热器供电装置的泵电流切断状态下开始向加热器供电，并且在从每个预定时间段供电的开始时间起的预定时间间隔内释放泵电流的切断供应 ; 以及具有泵电流控制装置的空燃比控制装置（7），其控制泵电流，检测泵电压，确定当所述泵电压落在先前存储的泵中时所述空燃燃料传感器（1）被激活 电压允许范围，并释放泵电流切断状态。

    Apparatus and method for determining identification and concentration of an atmospheric component
    89.
    发明公开
    Apparatus and method for determining identification and concentration of an atmospheric component 失效
    用于确定大气组分的鉴定和浓度的装置和方法

    公开(公告)号：EP0392447A3

    公开(公告)日：1992-09-23

    申请号：EP90106827.0

    申请日：1990-04-10

    申请人： GTE LABORATORIES INCORPORATED

    发明人： Wang, Da Yu ,  Kennedy, Daniel T. ,  Mac Allister, Burton W., Jr.

    IPC分类号： G01N27/419

    CPC分类号： G01N27/4065

    摘要： Apparatus and method for determining the identity and concentration of a component in a test atmosphere having a known concentration of oxygen. At least one solid electrolyte oxygen sensor (10) is used, with each sensor having a solid electrolyte wall in contact with, and interposed between, a first electrode (11) and a second electrode (12). The first electrode (11) is in communi­cation with the test atmosphere. A first negative voltage (21) is applied across the first and second electrodes of a sensor, causing electrochemical oxygen pumping and a first electric current to flow through the corresponding solid electrolyte wall. The first negative voltage is selected to cause the first electric current magnitude to be on a first current plateau. The magnitude of the first electric current is measured. A second negative voltage (22) is applied across the first and second electrodes of a sensor, causing electro­chemical oxygen pumping and a second electrical current to flow through the corresponding solid electrolyte wall. The second negative voltage is selected to cause the second electric current magnitude to be on a second current plateau. The magnitude of said second electric current is measured. A table (23) correlating pairs of numbers repre­senting various combinations of first and second electric current with corresponding identity and concentration of one or more components is provided. The measured first and second magnitudes of electric current are matched with the pairs of numbers in the table and the corresponding identity and concentration of one or more component is determined.