公开(公告)号：US09891188B2

公开(公告)日：2018-02-13

申请号：US14840482

申请日：2015-08-31

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Tatsuhiro Hashida ,  Kazuhiro Wakao ,  Keiichiro Aoki

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

CPC分类号： G01N27/4074 ,  G01N27/41 ,  G01N27/419

摘要： A gas concentration detecting device includes a gas concentration detecting element and an electronic control unit. The gas concentration detecting element includes a first electrochemical cell and a second electrochemical cell. The electronic control unit is configured to detect the concentration of the sulfur oxide contained in the test gas based on a first detected value correlated with a current flowing through the first electrochemical cell acquired when a first removing voltage is applied to the second electrochemical cell and a measuring voltage is applied to the first electrochemical cell.

公开(公告)号：US09714917B2

公开(公告)日：2017-07-25

申请号：US14769300

申请日：2014-02-13

申请人： Bosch Corporation

发明人： Hiroyuki Mizutani

IPC分类号： G01N27/409 ,  G01N27/416 ,  G01N27/406 ,  F02D41/14 ,  G01N27/419 ,  G01N33/00 ,  F02D41/20

CPC分类号： G01N27/4163 ,  F02D41/1494 ,  F02D2041/2027 ,  F02D2200/503 ,  F02N2300/108 ,  G01N27/4067 ,  G01N27/409 ,  G01N27/419 ,  G01N33/0036

摘要： A desired effective voltage can be ensured with certainty in a preheating control. An operation control part 52 reads a correction value c with respect to a battery voltage Vb at the time of performing correction based on preliminarily stored correlation between a battery voltage Vb of a vehicle-use battery and a correction value c (S104, S106), and compensates for lowering of an effective value of a pulse voltage by adding a correction value c to a duty ratio calculated by a predetermined arithmetic expression thus ensuring a desired effective voltage with certainty in a preheating control.

公开(公告)号：US09689338B2

公开(公告)日：2017-06-27

申请号：US14680155

申请日：2015-04-07

申请人： DENSO CORPORATION

发明人： Shinya Uemura ,  Satoshi Ichikawa

IPC分类号： G01N27/419 ,  G01N27/417 ,  F02D41/28 ,  F02D41/14 ,  F02D41/26 ,  G01N27/406

CPC分类号： F02D41/28 ,  F02D41/1454 ,  F02D41/266 ,  F02D2041/281 ,  G01N27/4065 ,  G01N27/4175 ,  G01N27/419

摘要： An air-fuel ratio sensor control device, connected with two-cell type air-fuel ratio sensor having electromotive force and oxygen pump cells with first to third two-cell terminals or a one-cell type air-fuel ratio sensor having a single cell with first and second one-cell terminals, includes: first to third connection terminals for connecting the one-cell or two-cell type air-fuel ratio sensor; a control circuit that is switchable between a two-cell circuit configuration for controlling the two-cell type air-fuel ratio sensor through the first to third connection terminals and a one-cell circuit configuration for controlling the one-cell type air-fuel ratio sensor through the first and second connection terminals; and a control unit that sets a circuit configuration of the control circuit to the one-cell or two-cell circuit configuration.

公开(公告)号：US09678035B2

公开(公告)日：2017-06-13

申请号：US14274994

申请日：2014-05-12

申请人： NGK Insulators, Ltd.

发明人： Osamu Nakasone ,  Satoshi Nishikawa ,  Shotarou Niizuma ,  Noriko Hirata ,  Yuki Nakayama

IPC分类号： C25B11/12 ,  G01N7/00 ,  G01N21/00 ,  G01N27/00 ,  G01N27/41 ,  G01N27/407 ,  G01N27/419 ,  G01N33/00

CPC分类号： G01N27/41 ,  G01N27/4074 ,  G01N27/419 ,  G01N33/0047

摘要： Provided is a gas sensor capable of accurately obtaining a hydrocarbon gas concentration even if a measurement gas contains water vapor. A main pumping cell adjusts an oxygen partial pressure of a first internal space such that a hydrocarbon gas in a measurement gas is not substantially burned in the first internal space. An auxiliary pumping cell adjusts an oxygen partial pressure of a second internal space such that inflammable gas components except for hydrocarbon are selectively burned. Then, a measuring pumping cell supplies oxygen to a surface of a measuring electrode. As a result, hydrocarbon existing in the measurement gas being in contact with the measuring electrode is all burned on the surface of the measuring electrode and, based on the magnitude of a current flowing between the measuring electrode and a main pumping electrode at that time, identifies a concentration of a hydrocarbon gas component existing in the measurement gas.

公开(公告)号：US09562876B2

公开(公告)日：2017-02-07

申请号：US14275048

申请日：2014-05-12

申请人： NGK Insulators, Ltd.

发明人： Osamu Nakasone ,  Shotarou Niizuma ,  Noriko Hirata ,  Yuki Nakayama

IPC分类号： G01N27/41 ,  G01N33/00 ,  G01N27/419

CPC分类号： G01N27/41 ,  G01N27/419 ,  G01N33/0047

摘要： Provided is a gas sensor capable of accurately obtaining a hydrocarbon gas concentration even if a measurement gas contains water vapor. A main pumping cell adjusts an oxygen partial pressure of a first internal space such that a hydrocarbon gas in a measurement gas is not substantially burned in the first internal space. An auxiliary pumping cell adjusts an oxygen partial pressure of a second internal space such that inflammable gas components except for hydrocarbon are selectively burned. Then, the measurement gas is introduced into a third internal space through a third diffusion control part. With oxygen concentration equilibrium kept in the third internal space, hydrocarbon existing in the measurement gas that has reached the third internal space is all burned. Then, the concentration of the hydrocarbon gas component existing in the measurement gas is identified based on the magnitude of a current flowing between the measuring electrode and the main pumping electrode at that time.

摘要翻译： 提供了即使测量气体含有水蒸气也能够精确地获得烃气体浓度的气体传感器。 主泵送单元调节第一内部空间的氧分压，使得测量气体中的烃气体在第一内部空间中基本上不被燃烧。 辅助泵送单元调节第二内部空间的氧分压，使得除了烃之外的可燃气体成分被选择性地燃烧。 然后，测量气体通过第三扩散控制部分被引入第三内部空间。 当氧浓度平衡保持在第三内部空间时，已经到达第三内部空间的测量气体中存在的烃全部燃烧。 然后，基于当时在测量电极和主泵送电极之间流动的电流的大小来识别存在于测量气体中的烃气体组分的浓度。

公开(公告)号：US09546976B2

公开(公告)日：2017-01-17

申请号：US13855257

申请日：2013-04-02

申请人： Sensore Electronic GmbH

发明人： Peter Seyr ,  Werner Reiter

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

CPC分类号： G01N27/409 ,  G01N27/4065 ,  G01N27/419

摘要： Method and apparatus for measurement of the oxygen partial pressure or the oxygen content in a measurement gas in at least one measurement cycle using a solid electrolyte cell having at least one oxygen-conducting solid electrolyte, and having at least one reference electrode as well as at least one measurement electrode, wherein the at least one measurement electrode is in communication with the measurement gas and the at least one reference electrode is in communication with a reference gas or reference volume separated from the measurement gas, wherein a current is imposed via the electrodes on the solid electrolyte cell for pump operation and a measurement voltage (UM) is tapped at the electrodes.

摘要翻译： 用于使用具有至少一个导电固体电解质的固体电解质电池测量测量气体中的氧分压或氧含量的方法和装置，并且具有至少一个参比电极以及 至少一个测量电极，其中所述至少一个测量电极与所述测量气体连通，并且所述至少一个参考电极与与所述测量气体分离的参考气体或参考体积连通，其中通过所述电极施加电流 在用于泵操作的固体电解质电池上，并且在电极处敲击测量电压（UM）。

公开(公告)号：US20160320334A1

公开(公告)日：2016-11-03

申请号：US15105177

申请日：2014-12-16

申请人： DENSO CORPORATION

发明人： Mitsunobu NAKATOU ,  Keigo MIZUTANI ,  Takashi ARAKI ,  Yuusuke TOUDOU

IPC分类号： G01N27/419 ,  G01N27/409 ,  G01N33/00 ,  G01N27/41

CPC分类号： G01N27/419 ,  G01N27/4071 ,  G01N27/409 ,  G01N27/41 ,  G01N33/0036 ,  G01N33/0037 ,  Y02A50/245

摘要： A gas sensor includes a solid electrolyte, a gas chamber, a reference gas chamber, a pump cell, a monitor cell, and a sensor cell. The gas chamber has a spatial width W0 constant in a width direction W orthogonal to the direction of flow of a gas in a position where the pump electrode, the monitor electrode, and the sensor electrode are provided on the solid electrolyte. An amount of shift ΔX1 of a central position O2 of a gap S in the width direction W between the monitor electrode and the sensor electrode from a central position O1 in the width direction of the pump electrode has relationship of ΔX1≦¼ W1 where the pump electrode has a width W1. In addition, positions ΔY1 of a of a side surface of the monitor electrode and of a side surface of the sensor electrode from the central position O1 in the width direction W of the pump electrode have relationship of ΔY1≦½ W1.

摘要翻译： 气体传感器包括固体电解质，气体室，参考气体室，泵室，监测单元和传感器单元。 气体室的宽度方向W的空间宽度W0与在固体电解质上设置有泵电极，监视电极和传感器电极的位置的气体的流动方向正交。 从泵电极的宽度方向的中心位置O1的监视电极和传感器电极之间的宽度方向W上的间隙S的中心位置O2的偏移量ΔX1与ΔX1≤1= W1相关联，其中泵 电极具有宽度W1。 此外，监视电极的侧表面的a和传感器电极的侧表面的距离中心位置O1在泵电极的宽度方向W上的位置ΔY1具有ΔY1≤1/ W1Wl的关系。

公开(公告)号：US20160258897A1

公开(公告)日：2016-09-08

申请号：US15059912

申请日：2016-03-03

申请人： NGK INSULATORS, LTD.

发明人： Hironori SAKAKIBARA ,  Shuichi OZAWA

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

摘要： A sensor element includes a laminate, in which a plurality of oxygen ion-conductive solid electrolyte layers are stacked and in which a measurement object-gas flow portion is disposed, an inside pump electrode disposed on the inner circumferential surface of the measurement object-gas flow portion, an auxiliary pump electrode, and a measurement electrode. Then, the value of the volume ratio (Va=Vm/Vr) is 14.5 or more and 51.5 or less and the value of the volume ratio (Vb=Vs/Vr) is 5.0 or more and 17.5 or less, where the volume of the inside pump electrode 22 is specified as (Vm), the volume of the auxiliary pump electrode 51 is specified as (Vs), and the volume of the measurement electrode 44 is specified as (Vr).

摘要翻译： 传感器元件包括叠层有多个氧离子传导性固体电解质层并配置有测定对象气体流路部的层叠体，配置在测定对象气体的内周面的内侧泵电极 流动部分，辅助泵电极和测量电极。 然后，体积比（Va = Vm / Vr）的值为14.5以上且51.5以下，体积比（Vb = Vs / Vr）的值为5.0以上且17.5以下，其中， 内侧泵浦电极22被指定为（Vm），辅助泵电极51的体积被指定为（Vs），并且测量电极44的体积被指定为（Vr）。

公开(公告)号：US09410922B2

公开(公告)日：2016-08-09

申请号：US14351867

申请日：2012-09-25

申请人： ROBERT BOSCH GMBH

发明人： Hartwig Lehle ,  Lothar Diehl ,  Jochen Betten ,  Moritz Waldorf ,  Thomas Seiler

IPC分类号： G01N27/417 ,  G01N27/406 ,  G01N27/407 ,  G01N27/419 ,  G01N33/00

CPC分类号： G01N27/4175 ,  G01N27/4065 ,  G01N27/407 ,  G01N27/419 ,  G01N33/0006 ,  G01N33/007

摘要： In a method for adjusting a gas sensor having a hollow chamber connected to a measuring gas chamber and having an electrochemical pump cell electrochemically pumping the gas component into or out of the hollow chamber, at least two pumping-in phases are provided in which the gas component is pumped into the hollow chamber by the electrochemical pump cell, and at least two pumping-out phases are provided in which the gas component is pumped out of the hollow chamber by the electrochemical pump cell. On the basis of at least one feature of the pump current during the pumping-out phases (Mout), at least one piece of information for adjusting the gas sensor is generated. A parameter regarding the pumping-in is predefined differently in the at least two pumping-in phases.

摘要翻译： 在一种用于调节气体传感器的方法中，所述气体传感器具有连接到测量气体室的中空室，并且具有电化学泵电池，电化学地将气体组分泵入或流出中空室，提供至少两个泵入阶段，其中气体 组分通过电化学泵电池泵入中空室，并且提供至少两个泵送阶段，其中气体组分由电化学泵电池泵出中空室。 基于泵送阶段（Mout）期间的泵电流的至少一个特征，产生用于调节气体传感器的至少一条信息。 关于泵入的参数在至少两个泵入阶段中被不同地预定。

公开(公告)号：US20160216229A1

公开(公告)日：2016-07-28

申请号：US14995362

申请日：2016-01-14

申请人： NGK INSULATORS, LTD.

发明人： Taku OKAMOTO ,  Osamu NAKASONE ,  Yuki NAKAYAMA

IPC分类号： G01N27/419 ,  G01N27/41

摘要： Provided is a gas sensor capable of accurately obtaining the concentration of water vapor of a measurement gas. A main pumping cell adjusts an oxygen partial pressure of a first internal space such that all of the water vapor of a measurement gas is decomposed in the first internal space. A measuring pumping cell adjusts an oxygen partial pressure of a second internal space such that hydrogen generated by the decomposition of water vapor selectively burns. A metal component of a measuring internal electrode contains an alloy of gold and a noble metal other than gold. A gold abundance ratio of the metal component on the surface of the measuring internal electrode is 25 at % or higher. The concentration of water vapor is identified based on the magnitude of a current flowing between the measuring internal electrode and an external electrode.

摘要翻译： 提供能够精确地获得测定气体的水蒸气浓度的气体传感器。 主泵送单元调节第一内部空间的氧分压，使得测量气体的所有水蒸气在第一内部空间中分解。 测量泵送单元调节第二内部空间的氧分压，使得由水蒸汽分解产生的氢气选择性地燃烧。 测量内部电极的金属成分含有金和金以外的贵金属的合金。 测量内部电极的表面上的金属成分的金丰度比为25at％以上。 基于在测量内部电极和外部电极之间流动的电流的大小来识别水蒸汽的浓度。