JP6097018B2 - 広帯域ラムダセンサのケーブルエラーを監視するための方法および制御ユニット - Google Patents
広帯域ラムダセンサのケーブルエラーを監視するための方法および制御ユニット Download PDFInfo
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- G—PHYSICS
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- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/4065—Circuit arrangements specially adapted therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, pumps
-
- 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
- F02D41/1455—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 with sensor resistivity varying with oxygen concentration
-
- 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
- F02D41/1494—Control of sensor heater
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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
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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
- G01N27/416—Systems
- G01N27/4163—Systems checking the operation of, or calibrating, the measuring apparatus
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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
- G01N27/416—Systems
- G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
- G01N27/4175—Calibrating or checking the analyser
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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Description
Z_1 :RGNDとIPEおよびAPEとSQ
Z_2 :RGNDとAPEおよびIPEとSQ
Z_0 :IPEとU Ref
Z_Rie :REとSQrおよびIPEとU Ref
を可能にする方法に関する。
第1回路マトリクスを備え、制御ユニットは、広帯域ラムダセンサの端子、接地抵抗RGNDおよび較正抵抗Rcalならびにポンプ電流源SQおよび基準電流源SQrとデジタル測定システムDMSとを相互に接続するための第2回路マトリクスを備え、第1回路マトリクスが少なくとも次の回路接続
Z_1 :RGNDとIPEおよびAPEとSQ
Z_2 :RGNDとAPEおよびIPEとSQ
Z_0 :IPEとU Ref
Z_Rie :REとSQrおよびIPEとU Ref
を備える制御ユニットに関する。
置は、ポンプ電流源SQおよび基準電流源SQrと広帯域ラムダセンサの端子、接地抵抗RGND、較正抵抗Rcalおよび基準電圧源URefとを相互接続するための第1回路マトリクスを備え、装置は、広帯域ラムダセンサの端子、接地抵抗RGNDおよび較正抵抗Rcalならびにポンプ電流源SQおよび基準電流源SQrとデジタル測定システムDMSとを相互に接続するための第2回路マトリクスを備える。この場合、第1回路マトリクスは次の回路接続を備える:
Z_Off :回路接続なし
Z_G0 :RGNDとSQ
Z_GE :RGNDとSQおよびREとSQ
Z_Gi :RGNDとSQおよびIPEとSQ
Z_Ga :RGNDとSQおよびAPEとSQ
Z_Gi_ai :RGNDとSQ、IPEとSQおよびAPEとSQr
Z_Gi_ei :RGNDとSQ、IPEとSQおよびREとSQr
Z_K :RGNDとMESおよびAPEとSQ
Z_Ria :APEとSQrおよびIPEとU Ref
Z_Rie :REとSQrおよびAPEとU Ref
Z_0 :IPEとU Ref
Z_Cal :RcalとSQr
Z_1 :RGNDとIPEおよびAPEとSQ
Z_2 :RGNDとAPEおよびIPEとSQ。
Claims (6)
- 内燃機関の排ガス通路でネルンストセル(61)とポンプセル(62)とを有する広帯域ラムダセンサ(60)の端子におけるケーブルエラーを検出するための方法であって、広帯域ラムダセンサ(60)が、基準電極端子REと、内部ポンプ電極端子IPEと、外部ポンプ電極端子APEとを備え、前記広帯域ラムダセンサ(60)に、制御ユニット(10)を介してポンプ電流源SQ(20)によってポンプ電流が供給され、基準電流源SQr(21)によってパルス状基準ポンプ電流が供給され、前記ポンプ電流源SQ(20)および前記基準電流源SQr(21)と、前記広帯域ラムダセンサ(60)、接地抵抗RGND(64)および基準電圧源URef(23)の端子との相互接続が、第1回路マトリクス(11)によって行われ、該第1回路マトリクス(11)が少なくとも回路接続
Z_1 :RGNDとIPEおよびAPEとSQ
Z_2 :RGNDとAPEおよびIPEとSQ
Z_0 :IPEとU Ref
Z_Rie :REとSQrおよびIPEとU Ref
を可能にする方法において、
ケーブルエラーを検出するために、少なくとも時々、制御されたポンプ電流をポンプセル(62)を介して伝導し、制御されたポンプ電流が負荷されている場合に、前記広帯域ラムダセンサ(60)が続いて接続される間に電位上昇を評価することによってケーブルエラーを検出すること、
制御されたポンプ電流作動時にポンプセル(62)を通る電流の方向を回路接続Z_1
または回路接続Z_2によって規定し、次いで回路接続Z_0によって前記内部ポンプ電極端子IPEを前記基準電圧源U Ref (23)に接続し、これにより電位上昇が生じた場合に前記内部ポンプ電極端子IPEまたは前記外部ポンプ電極端子APEにおける負荷降下を推定すること、
を特徴とする、広帯域ラムダセンサ(60)の端子におけるケーブルエラーを検出するための方法。 - 次の接続時に、内部ポンプ電極端子IPEを基準電圧源URef(23)に接続する、請求項1に記載の方法。
- 次の接続時に、付加的に前記基準電極端子REを前記基準電流源SQr(21)に接続し、これにより、パルス状基準ポンプ電流を前記基準電極端子REに加える、請求項2に記載の方法。
- 過電圧または低電圧検出により電位上昇を検出する、請求項1から3までのいずれか一項に記載の方法。
- 電位上昇に加えて、前記基準電極端子REと前記内部電極端子IPEとの間の接地抵抗RGNDまたは電圧Un0に関して電圧降下を評価する、請求項1から4までのいずれか一項に記載の方法。
- 内燃機関の排ガス通路でネルンストセル(61)とポンプセル(62)とを有する広帯域ラムダセンサ(60)を作動し、該広帯域ラムダセンサ(60)の作動状態に関する情報を検出するための制御ユニット(10)であって、前記広帯域ラムダセンサ(60)が、端子として、基準電極端子REと、内部ポンプ電極端子IPEと、外部ポンプ電極端子APEとを備え、前記制御ユニット(10)が、前記広帯域ラムダセンサ(60)の端子ならびに接地抵抗RGND(64)および較正抵抗Rcal(65)に接続されており、前記制御ユニット(10)が、ポンプ電流源SQ(20)および基準電流源SQr(21)と、前記広帯域ラムダセンサ(60)の端子、接地抵抗RGND(64)、較正抵抗Rcal(65)および基準電圧源URef(23)とを相互接続するための第1回路マトリクス(11)を備え、前記制御ユニット(10)が、前記広帯域ラムダセンサ(60)の端子、接地抵抗RGND(64)および較正抵抗Rcal(65)ならびに前記ポンプ電流源SQ(20)および前記基準電流源SQr(21)とデジタル測定システムDMSとを相互に接続するための第2回路マトリクスを備え、前記第1回路マトリクス(11)が少なくとも次の回路接続
Z_1: RGNDとIPEおよびAPEとSQ
Z_2: RGNDとAPEおよびIPEとSQ
Z_0: IPEとU Ref
Z_Rie: REとSQrおよびIPEとU Ref
を備える制御ユニット(60)において、
前記広帯域ラムダセンサ(60)の端子におけるケーブルエラーを監視するための前記制御ユニット(10)が、ポンプ電流源SQ(20)によって、制御されたポンプ電流を提供し、制御されたポンプ電流が前記ポンプセル(62)を通る所定の方向が回路接続Z_1またはZ_2によって規定されており、次の接続で、回路接続Z_0で内部ポンプ電極
端子IPEと基準電圧源URef(23)とが接続されるか、または回路接続Z_Rie
で基準電極端子REと前記基準電流源SQr(21)および内部ポンプ電極端子IPEと基準電圧源URef(23)とが接続され、前記制御ユニット(10)または該制御ユニットに接続された評価ユニットが、前記広帯域ラムダセンサ(60)の端子におけるケーブル破断のための指標として、過電圧および低電圧を決定するための測定手段を備えることを特徴とする、制御ユニット。
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DE102011076033.4 | 2011-05-18 | ||
DE102011076033 | 2011-05-18 | ||
DE102011077171A DE102011077171A1 (de) | 2011-05-18 | 2011-06-08 | Verfahren und Steuereinheit zur Überwachung von Kabelfehlern an einer Breitband-Lambdasonde |
DE102011077171.9 | 2011-06-08 |
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JP2012242385A JP2012242385A (ja) | 2012-12-10 |
JP6097018B2 true JP6097018B2 (ja) | 2017-03-15 |
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US (1) | US8773143B2 (ja) |
JP (1) | JP6097018B2 (ja) |
DE (1) | DE102011077171A1 (ja) |
FR (1) | FR2975499B1 (ja) |
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DE102009047648B4 (de) * | 2009-12-08 | 2022-03-03 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Diagnose von Abweichungen bei einer Einzelzylinder-Lambdaregelung |
DE102011089383A1 (de) * | 2011-12-21 | 2013-06-27 | Robert Bosch Gmbh | Verfahren zur Korrektur von Messwerten eines Sensorelements |
DE102012224374A1 (de) * | 2012-12-27 | 2014-07-03 | Robert Bosch Gmbh | Verfahren zur Diagnose einer elektrischen Leitung zu einer Elektrode eines Sensorelements zur Erfassung mindestens einer Eigenschaft eines Messgases in einem Messgasraum |
DE102013223049A1 (de) * | 2013-11-13 | 2015-05-13 | Robert Bosch Gmbh | Verfahren zur Diagnose einer Lambda-Sonde im laufenden Betrieb |
JP6112062B2 (ja) | 2014-05-07 | 2017-04-12 | 株式会社デンソー | 空燃比センサ制御装置 |
CN104535929B (zh) * | 2014-11-14 | 2017-08-25 | 广州擎天实业有限公司 | 三电极电池极性切换电路 |
DE102018215887A1 (de) | 2018-09-19 | 2020-03-19 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Diagnostizieren eines Abgassensors |
DE102019204219A1 (de) * | 2019-03-27 | 2020-10-01 | Robert Bosch Gmbh | Verfahren zur Diagnose von Abgassensoren |
DE102019204827A1 (de) * | 2019-04-04 | 2020-10-08 | Robert Bosch Gmbh | Verfahren zur Diagnose von Abgassensoren |
DE102019206429A1 (de) * | 2019-05-03 | 2020-11-05 | Robert Bosch Gmbh | Verfahren zur Bestimmung eines Innenwiderstandes einer elektrochemischen Zelle eines keramischen Abgassensors |
KR20230070321A (ko) | 2019-05-07 | 2023-05-22 | 피걸 머신 툴즈 엘엘씨 | 탄성 툴링을 갖는 증분 시트 성형 시스템 |
EP3875951A1 (en) * | 2020-03-06 | 2021-09-08 | Robert Bosch GmbH | Evaluation and control unit for a gas sensor |
DE102020210925A1 (de) | 2020-08-31 | 2022-03-03 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Leitungszuordnung eines Kurzschlusses einer Breitband-Lambdasonde |
DE102020212885A1 (de) * | 2020-10-13 | 2022-04-14 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Diagnose einer Breitband-Lambdasonde |
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DE19729696C2 (de) * | 1997-07-11 | 2002-02-21 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Funktionsüberwachung einer Gas-Sonde |
JP4646129B2 (ja) * | 2004-12-28 | 2011-03-09 | 日本特殊陶業株式会社 | ガス濃度測定装置の異常診断方法及びガス濃度測定装置の異常診断装置 |
DE102006061565A1 (de) | 2006-12-27 | 2008-07-03 | Robert Bosch Gmbh | Sondeneinrichtung mit Anpassungseinrichtung zur Anpassung an Auswerteeinrichtung zur Auswertung eines Sondengrenzstroms |
DE102008011231A1 (de) * | 2007-11-14 | 2009-05-20 | Robert Bosch Gmbh | Einrichtung zur Überprüfung der Funktionsfähigkeit eines Sensorelements |
DE102008001697A1 (de) * | 2008-05-09 | 2009-11-12 | Robert Bosch Gmbh | Auswerte- und Steuereinheit für eine Breitband-Lambdasonde |
JP5021600B2 (ja) * | 2008-10-20 | 2012-09-12 | 日本特殊陶業株式会社 | センサ駆動装置、および、センサ駆動システム |
DE102009050221A1 (de) * | 2009-10-22 | 2011-05-05 | Continental Automotive Gmbh | Vorrichtung und Verfahren zur Diagnose eines Abgassensors |
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- 2011-06-08 DE DE102011077171A patent/DE102011077171A1/de not_active Ceased
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2012
- 2012-05-10 FR FR1254272A patent/FR2975499B1/fr not_active Expired - Fee Related
- 2012-05-11 JP JP2012109585A patent/JP6097018B2/ja not_active Expired - Fee Related
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US8773143B2 (en) | 2014-07-08 |
US20120293183A1 (en) | 2012-11-22 |
FR2975499A1 (fr) | 2012-11-23 |
DE102011077171A1 (de) | 2012-11-22 |
JP2012242385A (ja) | 2012-12-10 |
FR2975499B1 (fr) | 2013-10-25 |
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