IN2014DN03309A - - Google Patents

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Publication number
IN2014DN03309A
IN2014DN03309A IN3309DEN2014A IN2014DN03309A IN 2014DN03309 A IN2014DN03309 A IN 2014DN03309A IN 3309DEN2014 A IN3309DEN2014 A IN 3309DEN2014A IN 2014DN03309 A IN2014DN03309 A IN 2014DN03309A
Authority
IN
India
Prior art keywords
threshold
state
switch
electric signal
compared
Prior art date
Application number
Inventor
Jean Pierre Delcol
Aurore Desgeorge
Original Assignee
Continental Automotive France
Continental Automotive Gmbh
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
Application filed by Continental Automotive France, Continental Automotive Gmbh filed Critical Continental Automotive France
Publication of IN2014DN03309A publication Critical patent/IN2014DN03309A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • 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
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • 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
    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
    • 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
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24457—Failure detection
    • G01D5/24466—Comparison of the error value to a threshold
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
    • G01R33/1207—Testing individual magnetic storage devices, e.g. records carriers or digital storage elements
    • 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
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2829—Testing of circuits in sensor or actuator systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Magnetic Variables (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

According to the invention a variable reluctance magnetic detection head outputs an electric signal (Uin) and a rising edge of the electric signal is compared with a first threshold (Th) in order to switch from a first state (B0) to a second state (B1) and a falling edge is compared with a second threshold (Tb) that is lower than the first threshold (Th) in order to switch from the second state (B1) to the first state (B0). In a diagnosis step the first threshold (Th) or the second threshold (Tb) are modified so as to become mutually closer and a defective magnetic detection head is detected if the cyclic ratio of the second state (B1) is modified during the diagnosis step by a value greater than a predetermined diagnosis threshold relative to a reference level. The invention also relates to a circuit implementing said method.
IN3309DEN2014 2011-11-14 2012-11-09 IN2014DN03309A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1103448A FR2982675B1 (en) 2011-11-14 2011-11-14 METHOD FOR DIAGNOSING A VARIABLE RELUCTANCE MAGNETIC DETECTION HEAD AND DETECTION CIRCUIT
PCT/EP2012/004671 WO2013072030A1 (en) 2011-11-14 2012-11-09 Method for diagnosing a variable reluctance magnetic detection head, and detection circuit

Publications (1)

Publication Number Publication Date
IN2014DN03309A true IN2014DN03309A (en) 2015-06-26

Family

ID=47189880

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3309DEN2014 IN2014DN03309A (en) 2011-11-14 2012-11-09

Country Status (5)

Country Link
US (1) US9217786B2 (en)
CN (1) CN104040151B (en)
FR (1) FR2982675B1 (en)
IN (1) IN2014DN03309A (en)
WO (1) WO2013072030A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE539262C2 (en) * 2015-10-16 2017-06-07 Scania Cv Ab Method and system for diagnosing a crankshaft rotational position sensor unit of a crankshaft
CN106382165B (en) * 2016-11-25 2019-08-30 北京理工大学 A kind of online fault detection method and system of diesel engine
CN111551814B (en) * 2020-06-11 2022-03-29 中国人民解放军军事科学院国防工程研究院工程防护研究所 Method for testing electromagnetic environment effect of monitoring system in variable-rising-edge wide-pulse electric field environment
US11031948B1 (en) * 2020-09-28 2021-06-08 Baker Hughes Oilfield Operations Llc Diagnostic system
DE102021202655B3 (en) * 2021-03-18 2022-07-21 Vitesco Technologies GmbH Method and device for diagnosing an internal combustion engine of a drive train

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3892133A (en) * 1973-09-13 1975-07-01 Us Transport Statistical sound level analyzer
DE19741780B4 (en) * 1997-09-22 2005-07-28 Siemens Ag Method for detecting line breaks in an inductive sensor
US6909277B2 (en) * 2002-03-13 2005-06-21 Caterpillar Inc Amplification circuit for increasing variable reluctance sensor output
US6674279B2 (en) * 2002-05-09 2004-01-06 Delphi Technologies, Inc. Variable attenuation circuit for a differential variable reluctance sensor with enhanced initial threshold accuracy
CN101158699A (en) * 2006-10-02 2008-04-09 唐嫦娥 Motorcycle active speed-sensing device signal filtering equipment and signal filtering method
DE102007046942A1 (en) * 2007-09-28 2009-04-16 Continental Automotive Gmbh Pulse generator for a device, in particular for a tachograph, and method for operating the pulse generator
DE102008024177B3 (en) * 2008-05-19 2009-09-03 Continental Automotive Gmbh Method, device and system for diagnosing a NOx sensor for an internal combustion engine
JP5195738B2 (en) * 2009-12-24 2013-05-15 トヨタ自動車株式会社 Rotation sensor abnormality determination device

Also Published As

Publication number Publication date
FR2982675B1 (en) 2014-01-17
CN104040151A (en) 2014-09-10
FR2982675A1 (en) 2013-05-17
CN104040151B (en) 2017-07-18
US20140320116A1 (en) 2014-10-30
US9217786B2 (en) 2015-12-22
WO2013072030A1 (en) 2013-05-23

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