WO2012136753A1 - Sensorvorrichtung zum erfassen einer gaskonzentration und einer partikelkonzentration eines abgases - Google Patents
Sensorvorrichtung zum erfassen einer gaskonzentration und einer partikelkonzentration eines abgases Download PDFInfo
- Publication number
- WO2012136753A1 WO2012136753A1 PCT/EP2012/056256 EP2012056256W WO2012136753A1 WO 2012136753 A1 WO2012136753 A1 WO 2012136753A1 EP 2012056256 W EP2012056256 W EP 2012056256W WO 2012136753 A1 WO2012136753 A1 WO 2012136753A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- sensor device
- sensor
- exhaust gas
- diffusion barrier
- Prior art date
Links
- 239000002245 particle Substances 0.000 title claims abstract description 40
- 239000007784 solid electrolyte Substances 0.000 claims abstract description 30
- 230000004888 barrier function Effects 0.000 claims abstract description 18
- 238000009792 diffusion process Methods 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 19
- 239000003792 electrolyte Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 229910001260 Pt alloy Inorganic materials 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 41
- 238000005086 pumping Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000004071 soot Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- -1 oxygen ions Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/4067—Means for heating or controlling the temperature of the solid electrolyte
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
- G01N27/419—Measuring voltages or currents with a combination of oxygen pumping cells and oxygen concentration cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1466—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being a soot concentration or content
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0656—Investigating concentration of particle suspensions using electric, e.g. electrostatic methods or magnetic methods
Definitions
- the invention relates to a sensor device for detecting a concentration of at least one gas component and a particle concentration of an exhaust gas.
- the sensor device has a sensor carrier with a solid electrolyte.
- the object underlying the invention is to provide a sensor device which enables a reliable determination of components of a gas mixture.
- the invention is characterized by a sensor device for detecting a concentration of at least one gas component and a particle concentration of an exhaust gas in an exhaust passage of an internal combustion engine.
- the sensor device has a sensor carrier with a solid electrolyte.
- the sensor device comprises a first and a second electrode, which are arranged on a predetermined outer side of the sensor carrier spaced from each other.
- the sensor device further comprises a substrate which, at least below a predetermined operating limit temperature of the substrate, essentially comprises Chen has no electrical conductivity and is arranged in a predetermined first region of the sensor carrier so that the first and the second electrode are substantially electrically decoupled from each other when the outside of the sensor carrier is substantially free of particles.
- the sensor device has a third electrode, which is coupled to the solid electrolyte, wherein the solid electrolyte is formed so that it is additionally coupled to the second electrode. Furthermore, the sensor device comprises a diffusion barrier, which is arranged and configured such that it is coupled to the third electrode in a predetermined third region and the third electrode is acted upon by the exhaust gas of the exhaust gas channel only in the third region via the diffusion barrier.
- the solid-state electrolyte is in particular mechanically coupled to the second electrode and the third electrode.
- the solid electrolyte is preferably designed such that it can transport oxygen ions electrolytically in a specific operating temperature range.
- different concentrations of a gas mixture can be detected with the sensor device.
- the first and second electrodes can preferably be used to detect the particle concentration of the exhaust gas in the exhaust gas channel.
- the second electrode and the third electrode may be used to detect the concentration of the at least one gas component of the exhaust gas, for example, an oxygen concentration of the exhaust gas.
- the particle concentration and the concentration of the at least one gas component can be detected offset in time with the sensor device.
- the sensor device can be used, for example, for an on-board diagnostic system.
- a measurement signal of a lambda probe is available only temporarily and / or a measurement signal of a soot particle sensor is available only temporarily.
- the electrodes of the sensors Sorvoriques can be controlled, for example by means of a suitably designed control unit such that during a given driving cycle in each case at least once the particle concentration and at least once the concentration of the gas mixture can be detected.
- the driving cycle can be characterized, for example, by a predetermined time duration, for example 500 s, and a predetermined operating state during the time duration, for example a cold start of the internal combustion engine.
- the sensor device according to the invention can make a contribution to increasing the service life and reliability of the sensor device, since the sensor device permits a layer structure without cavities and / or without gas inflow channels.
- a sensor element in which the second electrode is acted upon by a gas inlet restriction with a cavity and / or a gas inlet channel with the exhaust gas of the exhaust gas channel for example, a condensate in the cavity
- thermo-mechanical stresses can arise, for example in the solid-state electrolyte surrounding the respective cavity.
- the thermo-mechanical stresses can lead to damage of the sensor device.
- the sensor device can be manufactured inexpensively due to the simple mechanical structure.
- the diffusion barrier to a porous ceramic material.
- the substrate comprises the porous ceramic material and the diffusion barrier comprises the substrate.
- the diffusion barrier is arranged in the predetermined region of the sensor carrier in such a way that it substantially electrically electrically connects the first and second electrodes isolated from each other when the outside of the sensor carrier is substantially free of particles. This allows a very simple and thus cost-effective production of the sensor device. Furthermore, a space of the sensor device can be very small.
- the first and the second electrode have an interdigital structure. This can contribute to a resistance and / or impedance change between the first and the second
- the sensor device has a heating element which is thermally coupled to the first and the second electrode and the solid electrolyte.
- the heating element can be advantageously used to heat the solid electrolyte and to burn off particles deposited on and / or between the first and second electrodes.
- the heating element can be used at least partially simultaneously for heating the solid electrolyte and for burning off particles.
- the solid electrolyte has an ion conductivity only from a predetermined operating temperature of the solid electrolyte. For example, zirconia has ionic conductivity only at a minimum operating temperature of approximately> 450 ° C.
- the solid electrolyte sensor is preferably heated.
- the heating element can furthermore be used to burn the particles accumulated on the sensor device, in particular the particles deposited on and / or between the first and the second electrode, and thus the sensor sensors. to regenerate direction.
- a control of the heating element takes place when a limit thickness of a particle layer on and / or between the first and second electrodes is reached or exceeded.
- For the combustion of the particles is a heating of the sensor device in one
- Required electrode area which includes the first electrode, second electrode and the region between the first and second electrode.
- a heating of this electrode area to, for example, 800 ° C. is required.
- the second electrode and the third electrode are arranged on a same first side of the solid electrolyte. This allows a cost-effective production of the sensor device.
- the sensor device can in this case, for example, a planar
- the second electrode and the third electrode are predeterminedly spaced along a first axis and along a second axis which is orthogonal to the first axis, vertically offset from each other at least partially embedded in the solid electrolyte.
- the at least partial embedding of the second and the third electrode can also comprise a seating of the second and / or third electrode on the solid electrolyte.
- the heating element is arranged in the sensor carrier on a second side remote from the first side of the solid electrolyte.
- the second electrode and the third electrode to a porous platinum alloy.
- FIG. 1 shows a cross-sectional view of an embodiment of a sensor device for detecting a concentration of at least one gas component and a particle concentration of an exhaust gas
- FIG. 2 is an elevational view of the sensor device.
- the sensor device 1 can be arranged, for example, at one or more points at least partially in an exhaust gas duct of an internal combustion engine of a motor vehicle, for example downstream of a particle filter of the motor vehicle.
- the motor vehicle may be, for example, a diesel motor vehicle.
- the sensor device 1 can be used, for example, to determine an oxygen concentration and a soot particle concentration in the exhaust gas channel.
- the sensor device 1 may be arranged at least partially in an exhaust gas recirculation passage of an internal combustion engine.
- the sensor device 1 can be used in an environment with an oxygen concentration of approximately> 2%, in particular> 5%.
- the sensor device 1 has a sensor carrier 5 with a solid electrolyte 50.
- the solid electrolyte 50 may comprise, for example, a plurality of oxygen-conducting solid electrolyte layers.
- the solid state electrolyte 50 may include, for example, yttria stabilized zirconia (YSZ).
- the sensor carrier 5 may, for example, comprise one or more electrically insulating, thermally conductive layers comprising a ceramic material.
- the sensor device 1 comprises a first 10 and second electrode 40, which are arranged on an outer side of the sensor carrier 5 predetermined spaced from each other.
- the sensor device 1 is preferably oriented in the exhaust gas duct in such a way that the first electrode 10 and the second electrode 40 face the exhaust gas flow.
- the sensor device 1 has a third electrode 20, which is coupled to the solid electrolyte 50, wherein the solid electrolyte 50 is formed so that it is additionally coupled to the second electrode 40.
- the third electrode 20 and the second electrode 40 are arranged on the same side of the solid-state electrolyte 50.
- the sensor device 1 may have, for example, a planar layer structure.
- the third electrode 20 and the second electrode 40 are spaced predetermined along a first axis AI and along a second axis A2, which is orthogonal to the first axis AI, vertically offset from each other at least partially embedded in the solid electrolyte 50.
- the second electrode 20 and the third electrode 40 may, for example, comprise a porous platinum alloy. Alternatively, the second and third electrodes may comprise another porous metallic alloy.
- the first electrode 10 may comprise the porous platinum alloy or another porous metallic alloy. Alternatively, the first electrode may comprise a platinum alloy or other metallic alloy with no or substantially no porosity.
- the sensor device 1 may comprise, for example, a carrier 60 and a heating element 70.
- a heating Lation 80 which includes, for example, at least one of the electrically insulating, thermally conductive layers may be arranged.
- the sensor device 1 further comprises a substrate, which has substantially no electrical conductivity at least below a predetermined operating limit temperature of the substrate and is arranged in a predetermined first region of the sensor carrier 5 such that the first 10 and second
- Electrode 40 are substantially electrically decoupled from each other when the outside of the sensor carrier 5 is substantially free of particles.
- the sensor device 1 comprises a diffusion barrier 30.
- the diffusion barrier 30 is arranged and formed such that it is coupled to the third electrode in a predetermined third region and the third electrode 20 is coupled only in the third region via the diffusion barrier 30 and the gas mixture the gas space is acted upon.
- the diffusion barrier 30 comprises the substrate and the diffusion barrier 30 is arranged in the predetermined region of the sensor carrier 5 so as to substantially electrically insulate the first 10 and second electrodes 40 from each other when the outside of the sensor carrier 5 is substantially free of particles.
- the first electrode 10 is partially embedded in the diffusion barrier 30.
- the substrate comprises, for example, a porous ceramic material having a good thermal conductivity, so that the heating element 70 is thermally coupled to the first 10 and the second electrode 40 and the solid electrolyte 50.
- FIG. 2 shows a top view of the sensor device 1.
- the first 10 and second electrodes 40 have an interdigital structure.
- the particle concentration determined in each case during a first period of time depending on a detected resistance and / or impedance change between the first 10 and the second electrode 40 and determined during a second time period, the concentration of the at least one gas component determined from a detected pumping current flowing between the second and third electrodes.
- the first electrode 10 and the second electrode 40 are acted upon with a predetermined voltage, so that deposited particles from the exhaust gas flow on and / or between the first 10 and the second electrode 40 noticeably .
- electrically charged particles such as soot particles, are preferably attracted and accumulated on and / or between the first 10 and second electrodes 40.
- the sensor measuring unit may further be configured to detect a sensor current depending on the voltage applied between the first electrode 10 and the second electrode 40 and the accumulated particles on and / or between the first 10 and second electrodes 40, and depending on the voltage and the sensor current to determine an electrical resistance between the first 10 and the second electrode 40.
- the electrical resistance between the first electrode 10 and the second electrode 40 in a regenerated, that is cleaned sensor device 1 has a significantly higher resistance than in a non-cleaned sensor device 1. Particles are collected between the first electrode 10 and the second electrode 40, the value of the electrical resistance decreases. The electrical resistance is thus dependent on a thickness of a particle layer which extends to and / or between see the first 10 and the second electrode 40 has accumulated.
- the third electrode 20 and the second electrode 40 of the sensor device 1 may be electrically coupled to a power source.
- the current source can then be activated in the sense of switching off and an electrode voltage between the third and the second electrode 40 can be detected.
- a pumping current can be determined depending on a deviation of the electrode voltage from a predetermined setpoint voltage.
- the current source can be controlled such that it delivers the pumping current to the second electrode 40 of the sensor element, wherein the steps of the measuring phase and the subsequent driving of the current source for discharging the Pumping current to the second electrode 40 are repeated several times in the sense of minimizing the deviation between the electrode denencies and the predetermined setpoint voltage.
- the concentration of the exhaust gas in the exhaust duct can be determined.
- the heating element 70 can be used during a regeneration phase accumulated on the sensor device 1
- Such a control of the heating element 70 preferably takes place when a limit thickness of a particle layer on and / or between the first electrode 10 and the second electrode 40 is reached or exceeded.
- the burning off may take place in an intermediate phase that follows the first time period in time and precedes the second time period. In this case, it is sufficient if during the second period of time the solid state electrolyte 50 is heated so that it at least temporarily has a predetermined operating temperature which is greater than a minimum operating temperature at which the solid electrolyte 50 has the ionic conductivity, and which is smaller than a burning temperature, which is for burning off the
- the heating element 70 is operated such that the operating temperature of the solid electrolyte 50 has a value above the minimum operating temperature and at the same time burning off the soot particles from the first 10 and second electrode 40th can be done.
- the heating element 70 is also driven in the sense of a shutdown.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Electrochemistry (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/110,339 US9011659B2 (en) | 2011-04-08 | 2012-04-05 | Sensor apparatus for detecting a gas concentration and a particle concentration of an exhaust gas |
DE112012001629.7T DE112012001629A5 (de) | 2011-04-08 | 2012-04-05 | Sensorvorrichtung zum Erfassen einer Gaskonzentration und einer Partikelkonzentration eines Abgases |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011016490.1 | 2011-04-08 | ||
DE102011016490A DE102011016490A1 (de) | 2011-04-08 | 2011-04-08 | Sensorvorrichtung zum Erfassen einer Gaskonzentration und einer Partikelkonzentration eines Abgases |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012136753A1 true WO2012136753A1 (de) | 2012-10-11 |
Family
ID=46085000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/056256 WO2012136753A1 (de) | 2011-04-08 | 2012-04-05 | Sensorvorrichtung zum erfassen einer gaskonzentration und einer partikelkonzentration eines abgases |
Country Status (3)
Country | Link |
---|---|
US (1) | US9011659B2 (de) |
DE (2) | DE102011016490A1 (de) |
WO (1) | WO2012136753A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170160179A1 (en) * | 2015-12-08 | 2017-06-08 | Hyundai Motor Company | Particulate matter sensor |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102297473B1 (ko) * | 2014-07-15 | 2021-09-02 | 삼성전자주식회사 | 신체를 이용하여 터치 입력을 제공하는 장치 및 방법 |
DE102014223780A1 (de) * | 2014-11-21 | 2016-05-25 | Robert Bosch Gmbh | Sensor zum Analysieren eines Abgases einer Verbrennungskraftmaschine, Verbrennungskraftmaschine sowie Verfahren und Vorrichtung zum Herstellen eines solchen Sensors |
DE102014226726A1 (de) * | 2014-12-19 | 2016-06-23 | Continental Automotive Gmbh | Verfahren zum Betreiben eines Sauerstoffsensors und Sauerstoffsensor |
DE102015222108A1 (de) * | 2015-11-10 | 2017-05-11 | Robert Bosch Gmbh | Sensorelement und Verfahren zur Herstellung eines Sensorelements |
KR101724499B1 (ko) * | 2015-12-11 | 2017-04-07 | 현대자동차 주식회사 | 입자상 물질 센서 및 이를 이용한 측정방법 |
US10018098B2 (en) * | 2016-04-14 | 2018-07-10 | Ford Global Technologies, Llc | Method and system for exhaust particulate matter sensing |
Citations (4)
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DE10322427A1 (de) * | 2001-11-20 | 2004-12-02 | Robert Bosch Gmbh | Sensor zur Detektion von Teilchen in einem Gasstrom |
DE102005049775A1 (de) * | 2005-10-18 | 2007-04-19 | Robert Bosch Gmbh | Sensor zur Messung der Konzentration einer Gaskomponente in einem Gasgemisch und Verfahren zur Herstellung einer Elektrode eines solchen Sensors |
DE102006048354A1 (de) * | 2006-10-12 | 2008-04-17 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Bestimmung von Bestandteilen eines Gasgemisches |
US20090301180A1 (en) * | 2008-06-04 | 2009-12-10 | Reutiman Peter L | Exhaust sensor apparatus and method |
Family Cites Families (7)
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---|---|---|---|---|
JP3104291B2 (ja) * | 1991-06-04 | 2000-10-30 | 三菱自動車工業株式会社 | Nox センサ |
DE19960338A1 (de) * | 1999-12-15 | 2001-07-05 | Bosch Gmbh Robert | Gassensor zur Bestimmung der Konzentration von Gaskomponenten in Gasgemischen und dessen Verwendung |
DE10147390A1 (de) * | 2001-09-26 | 2003-04-30 | Bosch Gmbh Robert | Breitband-Lambda-Sonde mit verbessertem Startverhalten |
DE102004043121A1 (de) * | 2004-09-07 | 2006-03-09 | Robert Bosch Gmbh | Sensorelement für Partikelsensoren und Verfahren zum Betrieb desselben |
DE102005015103A1 (de) * | 2004-09-30 | 2006-04-06 | Robert Bosch Gmbh | Partikelsensor und Verfahren zum Betrieb desselben |
DE102007059653A1 (de) * | 2007-12-10 | 2009-06-18 | Siemens Ag | Gassensor |
DE102009033232A1 (de) * | 2009-07-14 | 2011-01-27 | Continental Automotive Gmbh | Verfahren zur fahrzeugeigenen Funktionsdiagnose eines Rußsensors und/oder zur Erkennung von weiteren Bestandteilen im Ruß in einem Kraftfahrzeug |
-
2011
- 2011-04-08 DE DE102011016490A patent/DE102011016490A1/de not_active Withdrawn
-
2012
- 2012-04-05 WO PCT/EP2012/056256 patent/WO2012136753A1/de active Application Filing
- 2012-04-05 US US14/110,339 patent/US9011659B2/en not_active Expired - Fee Related
- 2012-04-05 DE DE112012001629.7T patent/DE112012001629A5/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10322427A1 (de) * | 2001-11-20 | 2004-12-02 | Robert Bosch Gmbh | Sensor zur Detektion von Teilchen in einem Gasstrom |
DE102005049775A1 (de) * | 2005-10-18 | 2007-04-19 | Robert Bosch Gmbh | Sensor zur Messung der Konzentration einer Gaskomponente in einem Gasgemisch und Verfahren zur Herstellung einer Elektrode eines solchen Sensors |
DE102006048354A1 (de) * | 2006-10-12 | 2008-04-17 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Bestimmung von Bestandteilen eines Gasgemisches |
US20090301180A1 (en) * | 2008-06-04 | 2009-12-10 | Reutiman Peter L | Exhaust sensor apparatus and method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170160179A1 (en) * | 2015-12-08 | 2017-06-08 | Hyundai Motor Company | Particulate matter sensor |
Also Published As
Publication number | Publication date |
---|---|
DE112012001629A5 (de) | 2014-01-16 |
US20140034495A1 (en) | 2014-02-06 |
US9011659B2 (en) | 2015-04-21 |
DE102011016490A1 (de) | 2012-10-11 |
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