JP5727602B2 - センサ素子のポンプ電流を修正する方法 - Google Patents
センサ素子のポンプ電流を修正する方法 Download PDFInfo
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- JP5727602B2 JP5727602B2 JP2013517221A JP2013517221A JP5727602B2 JP 5727602 B2 JP5727602 B2 JP 5727602B2 JP 2013517221 A JP2013517221 A JP 2013517221A JP 2013517221 A JP2013517221 A JP 2013517221A JP 5727602 B2 JP5727602 B2 JP 5727602B2
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- 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
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/41—Oxygen pumping cells
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- 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
- F02D41/1493—Details
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- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
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- 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
- G01N27/4065—Circuit arrangements specially adapted therefor
-
- 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
- G01N27/4175—Calibrating or checking the analyser
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
- F02D2041/286—Interface circuits comprising means for signal processing
- F02D2041/288—Interface circuits comprising means for signal processing for performing a transformation into the frequency domain, e.g. Fourier transformation
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
Claims (11)
- 混合気の気体成分の濃度を決定するためのポンプセルを含む広帯域ラムダセンサを駆動する方法であって、前記広帯域ラムダセンサは、孔を介して排気と接続された測定気体室と、前記孔の側に配置された外部ポンプ電極と、測定気体室の側に前記外部ポンプ電極の方を向いて配置された内部ポンプ電極と、を含み、
前記外部ポンプ電極と前記内部ポンプ電極との間にポンプ電圧が印加され、前記測定気体室内で一定の酸素分圧が調整されることによって、前記気体成分は前記測定気体室から隔離され、前記外部ポンプ電極と前記内部ポンプ電極との間を流れるポンプ電流から前記混合気における前記気体成分の前記濃度が推測される、前記方法において、動的な圧力変動に起因する前記ポンプ電流の振動を考慮してセンサ信号を修正し、
前記ポンプ電流の前記振動は、前記動的な圧力変動に起因する周波数部分を特定するために解析され、前記センサ信号は、前記動的な圧力変動の前記周波数の分だけ修正されることを特徴とする、方法。 - 前記振動の前記解析は、周波数解析によって行われることを特徴とする、請求項1に記載の方法。
- 前記動的な圧力変動に起因する前記周波数部分は、前記ポンプ電流の前記振動から差し引かれることを特徴とする、請求項1又は2に記載の方法。
- 前記動的な圧力変動に起因する前記周波数部分を特徴付ける少なくとも1つの変数に、センサ素子に典型的な、前記ポンプ電流の平均値シフトが割り当てられ、前記割り当てを用いて前記センサ信号の前記修正が行われることを特徴とする、請求項1〜3のいずれか1項に記載の方法。
- 前記ポンプ電流の前記修正のために、予め設定可能な閾値をその周波数が上回る、前記動的な圧力変動に起因する前記周波数部分のみを考慮することを特徴とする、請求項1〜4のいずれか1項に記載の方法。
- 前記振動の前記解析の際には、25Hzを下回る低い周波数と、25Hzを上回る高い周波数と、が互いに区別されることを特徴とする、請求項1〜3のいずれか1項に記載の方法。
- 前記広帯域ラムダセンサの前記センサ信号がハイパスフィルタにより案内され、前記センサ信号の、整流され平均化された振幅が、前記センサ信号の修正のために援用されることを特徴とする、請求項6に記載の方法。
- 演算機又は制御装置で駆動する場合に請求項1〜7のいずれか1項に記載の方法の全ステップを実行するコンピュータプログラム。
- プログラムがコンピュータ又は制御装置で実行される場合に、請求項1〜7のいずれか1項に記載の方法を実施するためのプログラムコードが機械読み取り可能な担体に格納された、記録媒体。
- 前記振動の前記解析は、フーリエ周波数解析によって行われることを特徴とする、請求項2に記載の方法。
- 前記割り当てが特性マップに記録されることを特徴とする、請求項4に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010031060.3 | 2010-07-07 | ||
DE102010031060A DE102010031060A1 (de) | 2010-07-07 | 2010-07-07 | Verfahren zum Betreiben eines Sensorelements |
PCT/EP2011/060680 WO2012004143A1 (de) | 2010-07-07 | 2011-06-27 | Verfahren zur korrektur des pumpstroms eines sensorelements |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013533968A JP2013533968A (ja) | 2013-08-29 |
JP5727602B2 true JP5727602B2 (ja) | 2015-06-03 |
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ID=44486374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013517221A Active JP5727602B2 (ja) | 2010-07-07 | 2011-06-27 | センサ素子のポンプ電流を修正する方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9222912B2 (ja) |
EP (1) | EP2591346B1 (ja) |
JP (1) | JP5727602B2 (ja) |
CN (1) | CN102959393B (ja) |
DE (1) | DE102010031060A1 (ja) |
WO (1) | WO2012004143A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012220567A1 (de) * | 2012-11-12 | 2014-06-12 | Robert Bosch Gmbh | Verfahren zum Betrieb eines Sensorelements |
DE102014111409B4 (de) | 2013-08-15 | 2023-08-17 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Verfahren zum Kompensieren von Druckschwankungen eines Sauerstoffsensors |
DE102013217198A1 (de) * | 2013-08-28 | 2015-03-05 | Robert Bosch Gmbh | Sensorelement zur Erfassung mindestes einer Eigenschaft eines Messgases in einem Messgasraum |
JP6453594B2 (ja) * | 2014-09-16 | 2019-01-16 | 日本特殊陶業株式会社 | ガスセンサ装置、およびガスセンサを用いた濃度測定方法 |
DE102014225147A1 (de) * | 2014-12-08 | 2016-06-09 | Robert Bosch Gmbh | Verfahren zur Identifikation einer Kennlinie |
DE102015206867A1 (de) * | 2015-04-16 | 2016-10-20 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Sensors zur Erfassung mindestens einer Eigenschaft eines Messgases in einem Messgasraum |
DE102016122956A1 (de) * | 2016-11-29 | 2018-05-30 | Ford Global Technologies, Llc | Verfahren zur Bestimmung eines Druckkompensationswerts für einen Sauerstoffsensor und zum Steuern des Betriebs eines Verbrennungsmotors mit Abgasrückführung und Sauerstoffsensor |
US10288559B2 (en) | 2017-03-03 | 2019-05-14 | Honeywell International Inc. | Gas concentration sensor with improved accuracy |
EP3783275A1 (en) * | 2019-08-21 | 2021-02-24 | Grundfos Holding A/S | Pump system |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2846735B2 (ja) * | 1990-11-30 | 1999-01-13 | 日本碍子株式会社 | 空燃比センサの出力補正方法 |
JP3154862B2 (ja) * | 1993-03-23 | 2001-04-09 | 日本碍子株式会社 | 酸素分析装置の出力補正方法 |
US6360583B1 (en) | 1998-11-30 | 2002-03-26 | Ford Global Technologies, Inc. | Oxygen sensor monitoring |
US8029656B2 (en) * | 2003-01-30 | 2011-10-04 | Emisense Technologies Llc | System, apparatus, and method for measuring an ion concentration of a measured fluid |
DE10320635A1 (de) | 2003-05-08 | 2004-11-18 | Basf Ag | Verfahren zur Herstellung von Propylenoxid |
DE102004023004A1 (de) | 2004-05-10 | 2005-12-08 | Robert Bosch Gmbh | Sensorelement |
DE102004042027A1 (de) | 2004-08-31 | 2006-03-02 | Robert Bosch Gmbh | Vorrichtung zum Ermitteln der Konzentration einer Komponente in einem Gasgemisch |
WO2007119311A1 (ja) * | 2006-03-15 | 2007-10-25 | Ngk Insulators, Ltd. | NOxセンサの出力補正方法 |
DE102007045984A1 (de) | 2007-09-26 | 2009-04-02 | Continental Automotive Gmbh | Verfahren zur Ermittlung der dynamischen Eigenschaften eines Abgassensors einer Brennkraftmaschine |
JP4609545B2 (ja) | 2008-08-06 | 2011-01-12 | 株式会社デンソー | ガスセンサの信号処理装置 |
DE102008042549B4 (de) | 2008-10-01 | 2018-03-22 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Diagnose einer Abgassonde |
-
2010
- 2010-07-07 DE DE102010031060A patent/DE102010031060A1/de not_active Withdrawn
-
2011
- 2011-06-27 JP JP2013517221A patent/JP5727602B2/ja active Active
- 2011-06-27 WO PCT/EP2011/060680 patent/WO2012004143A1/de active Application Filing
- 2011-06-27 CN CN201180033443.5A patent/CN102959393B/zh not_active Expired - Fee Related
- 2011-06-27 EP EP11729101.3A patent/EP2591346B1/de not_active Not-in-force
- 2011-06-27 US US13/808,615 patent/US9222912B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2591346A1 (de) | 2013-05-15 |
WO2012004143A1 (de) | 2012-01-12 |
CN102959393B (zh) | 2016-02-24 |
US20130167511A1 (en) | 2013-07-04 |
US9222912B2 (en) | 2015-12-29 |
EP2591346B1 (de) | 2018-01-24 |
CN102959393A (zh) | 2013-03-06 |
DE102010031060A1 (de) | 2012-01-12 |
JP2013533968A (ja) | 2013-08-29 |
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