IN2014DN08552A - - Google Patents

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Publication number
IN2014DN08552A
IN2014DN08552A IN8552DEN2014A IN2014DN08552A IN 2014DN08552 A IN2014DN08552 A IN 2014DN08552A IN 8552DEN2014 A IN8552DEN2014 A IN 8552DEN2014A IN 2014DN08552 A IN2014DN08552 A IN 2014DN08552A
Authority
IN
India
Prior art keywords
broadband lambda
lambda sensor
control device
fault simulator
fault
Prior art date
Application number
Inventor
Bernhard Ledermann
Claudius Bevot
Thomas Steinert
Original Assignee
Bosch Gmbh Robert
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=48783227&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IN2014DN08552(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of IN2014DN08552A publication Critical patent/IN2014DN08552A/en

Links

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
    • G01N27/416—Systems
    • G01N27/4163—Systems checking the operation of, or calibrating, the measuring apparatus
    • 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
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
    • G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
    • G01M15/104—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases using oxygen or lambda-sensors
    • 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
    • G01N27/409—Oxygen concentration cells
    • 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
    • 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
    • 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
    • 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
    • F02D2041/281—Interface circuits between sensors and control unit
    • 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
    • F02D41/1456—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 output signal being linear or quasi-linear with the concentration of oxygen
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/007—Arrangements to check the analyser
    • 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
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Emergency Medicine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Of Engines (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

The invention relates to a method for checking the fault detection of a control device (14) in an internal combustion engine in case of a malfunction of a connected broadband lambda sensor (10) wherein the checking is performed with a fault simulator (12) arranged between the broadband lambda sensor (10) and the control device (14) and wherein the fault simulator (12) varies in a targeted manner electrical signals exchanged between the broadband lambda sensor (10) and the control device (14) in order to simulate faults of the broadband lambda sensor (10). According to the method a Nernst voltage UNO (11) of the broadband lambda sensor (10) and a pump current IP (16) of the control device are supplied to the fault simulator the fault simulator (12) supplies a pump current IPsonde (15) to the broadband lambda sensor (10) and a Nernst voltage UNO (13) to the control device and in order to simulate faults of the broadband lambda sensor (10) the fault simulator (12) varies the Nernst voltage UNO (13) supplied to the control device relative to the Nernst voltage UNO (11) output by the broadband lambda sensor. The invention further relates to a fault simulator for performing the method. The method and the fault simulator allow the monitoring of the fault detection by control devices for broadband lambda sensors.
IN8552DEN2014 2012-07-25 2013-07-09 IN2014DN08552A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012213068.3A DE102012213068A1 (en) 2012-07-25 2012-07-25 Method and fault simulator for checking the fault detection of a control unit
PCT/EP2013/064454 WO2014016109A1 (en) 2012-07-25 2013-07-09 Fault simulator for checking the diagnosis implemented in a control device for a lambda sensor in an internal combustion engine

Publications (1)

Publication Number Publication Date
IN2014DN08552A true IN2014DN08552A (en) 2015-05-15

Family

ID=48783227

Family Applications (1)

Application Number Title Priority Date Filing Date
IN8552DEN2014 IN2014DN08552A (en) 2012-07-25 2013-07-09

Country Status (8)

Country Link
US (1) US9880127B2 (en)
EP (1) EP2877865A1 (en)
JP (1) JP6092385B2 (en)
KR (1) KR20150038248A (en)
CN (1) CN104471411B (en)
DE (1) DE102012213068A1 (en)
IN (1) IN2014DN08552A (en)
WO (1) WO2014016109A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104977920B (en) * 2014-04-04 2017-09-26 联创汽车电子有限公司 Broad domain oxygen sensor loads simulator
DE102016110014A1 (en) 2016-05-31 2017-11-30 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Method and device for checking the detection of faults in a lambda probe
DE102016124328A1 (en) * 2016-12-14 2018-06-14 Dspace Digital Signal Processing And Control Engineering Gmbh Test rig for simulating the electrical response of a broadband lambda probe
CN108398527B (en) * 2018-01-31 2021-02-23 广西玉柴机器股份有限公司 Oxygen sensor detection method for natural gas engine
CN109932604A (en) * 2019-04-03 2019-06-25 武汉菱电汽车电控系统股份有限公司 Wide oxygen failure simulation method, apparatus and system

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859955A (en) 1985-11-06 1989-08-22 The Grass Valley Group, Inc. Apparatus for smoothing an abrupt change in signal level
DE3903314A1 (en) * 1989-02-04 1990-08-09 Bosch Gmbh Robert CIRCUIT FOR MEASURING THE INTERNAL RESISTANCE OF A LAMB PROBE
DE4113316C2 (en) * 1991-04-24 2003-09-11 Bosch Gmbh Robert Connection circuit for a lambda probe and test method for such a circuit
US5522250A (en) * 1995-04-06 1996-06-04 Ford Motor Company Aged exhaust gas oxygen sensor simulator
DE10007688A1 (en) * 2000-02-19 2001-08-23 Bosch Gmbh Robert Device for controlling the tilting function of a mast, in particular for a forklift
DE10025578C2 (en) * 2000-05-24 2002-03-21 Siemens Ag Test and calibration device for an evaluation circuit of a linear oxygen probe (lambda probe)
US7010773B1 (en) 2001-11-19 2006-03-07 Cypress Semiconductor Corp. Method for designing a circuit for programmable microcontrollers
JP3869338B2 (en) * 2002-08-30 2007-01-17 日本特殊陶業株式会社 Oxygen sensor degradation simulator
KR100468763B1 (en) 2002-09-03 2005-01-29 삼성전자주식회사 Loading motor controlling apparatus for optical disc player
US6831471B2 (en) * 2002-11-14 2004-12-14 Delphi Technologies, Inc. Configurable interface circuit for exhaust gas oxygen sensors
JP2004316570A (en) * 2003-04-17 2004-11-11 Hitachi Unisia Automotive Ltd False deterioration signal generating device for sensor
DE102006008539A1 (en) * 2006-02-22 2007-08-30 Robert Bosch Gmbh Error condition simulating method for use in control device, involves connecting circuit points of device to be tested with points of fault generation circuit across multiplexer, and multiplexer is implemented using relay technology
JP4995487B2 (en) * 2006-05-24 2012-08-08 日本特殊陶業株式会社 Gas sensor deterioration signal generator
DE102006024606A1 (en) * 2006-05-26 2007-11-29 Bayerische Motoren Werke Ag Method for functional testing of a control device for a motor vehicle
JP2008076191A (en) * 2006-09-20 2008-04-03 Toyota Motor Corp Failure diagnosis device of oxygen sensor
JP2008248819A (en) * 2007-03-30 2008-10-16 Mazda Motor Corp Failure diagnostic device for air-fuel ratio sensor
JP4760806B2 (en) * 2007-09-04 2011-08-31 株式会社デンソー Gas sensor degradation simulator
DE102008027895B4 (en) * 2008-06-11 2012-07-05 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Method and circuit arrangement for functional testing of engine control units
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JP5179523B2 (en) * 2010-01-20 2013-04-10 日本特殊陶業株式会社 Oxygen sensor degradation signal generator
CN101793604B (en) * 2010-02-08 2011-11-30 清华大学 Oxygen sensor signal simulator

Also Published As

Publication number Publication date
DE102012213068A1 (en) 2014-01-30
CN104471411B (en) 2018-11-06
CN104471411A (en) 2015-03-25
US20150204814A1 (en) 2015-07-23
EP2877865A1 (en) 2015-06-03
JP6092385B2 (en) 2017-03-08
KR20150038248A (en) 2015-04-08
WO2014016109A1 (en) 2014-01-30
JP2015530510A (en) 2015-10-15
US9880127B2 (en) 2018-01-30

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