WO2012159877A3 - Determination of the standard-series opening behaviour of a fuel injector on the basis of a test opening behaviour under the influence of a test pulse with a constant voltage - Google Patents

Determination of the standard-series opening behaviour of a fuel injector on the basis of a test opening behaviour under the influence of a test pulse with a constant voltage Download PDF

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Publication number
WO2012159877A3
WO2012159877A3 PCT/EP2012/058457 EP2012058457W WO2012159877A3 WO 2012159877 A3 WO2012159877 A3 WO 2012159877A3 EP 2012058457 W EP2012058457 W EP 2012058457W WO 2012159877 A3 WO2012159877 A3 WO 2012159877A3
Authority
WO
WIPO (PCT)
Prior art keywords
fuel injector
test
opening behaviour
determination
coil drive
Prior art date
Application number
PCT/EP2012/058457
Other languages
German (de)
French (fr)
Other versions
WO2012159877A2 (en
Inventor
Frank Denk
Original Assignee
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 Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2012159877A2 publication Critical patent/WO2012159877A2/en
Publication of WO2012159877A3 publication Critical patent/WO2012159877A3/en

Links

Classifications

    • 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
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2464—Characteristics of actuators
    • F02D41/2467—Characteristics of actuators for injectors
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844—Monitoring or fail-safe circuits
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

A method for determining the opening behaviour of a fuel injector, having a coil drive, for an internal combustion engine of a motor vehicle is described. The method comprises (a) applying to the coil drive a test voltage profile (U), with the result that a magnet armature of the coil drive moves from a closed position into an open position, (b) measurement of the time profile of the current strength (I) of the current flowing through the coil drive, (c) identification of a characteristic feature in the measured time profile of the current strength (I), (d) determination of a time difference (OPP_2_T) between the start of the test time window and the occurrence of the characteristic feature, and (e) determination of the chronological opening behaviour of the fuel injector which occurs when a standard-series voltage profile is applied to the coil drive, as a function of the determined time difference (OPP_2_T). In addition, a device and a computer program which are configured for carrying out the method are described. Furthermore, a method for determining a correlation between a test opening behaviour and a standard-series opening behaviour of a fuel injector and a method for actuating a fuel injector are also described.
PCT/EP2012/058457 2011-05-24 2012-05-08 Determination of the standard-series opening behaviour of a fuel injector on the basis of a test opening behaviour under the influence of a test pulse with a constant voltage WO2012159877A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011076363.5A DE102011076363B4 (en) 2011-05-24 2011-05-24 Method and device for determining the opening behavior of a fuel injector for an internal combustion engine
DE102011076363.5 2011-05-24

Publications (2)

Publication Number Publication Date
WO2012159877A2 WO2012159877A2 (en) 2012-11-29
WO2012159877A3 true WO2012159877A3 (en) 2013-03-07

Family

ID=46085927

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/058457 WO2012159877A2 (en) 2011-05-24 2012-05-08 Determination of the standard-series opening behaviour of a fuel injector on the basis of a test opening behaviour under the influence of a test pulse with a constant voltage

Country Status (2)

Country Link
DE (1) DE102011076363B4 (en)
WO (1) WO2012159877A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105378252A (en) * 2013-07-24 2016-03-02 大陆汽车有限公司 Determination of the point in time of a predetermined open state of a fuel injector

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013205518B4 (en) * 2013-03-27 2023-08-10 Vitesco Technologies GmbH Determination of the point in time of a predetermined opening state of a fuel injector
DE102013206600B4 (en) 2013-04-12 2015-08-06 Continental Automotive Gmbh Injection system for injecting fuel into an internal combustion engine and control method for such an injection system
DE102013207555B3 (en) 2013-04-25 2014-10-09 Continental Automotive Gmbh Method for injection quantity adaptation
EP2796703B1 (en) 2013-04-26 2016-07-20 Continental Automotive GmbH Valve assembly for an injection valve and injection valve
DE102013209077B4 (en) 2013-05-16 2019-06-06 Continental Automotive Gmbh Method and device for determining the electrical activation duration of a fuel injector for an internal combustion engine
DE102014202136B4 (en) * 2013-09-19 2019-03-07 Continental Automotive Gmbh Method and device for detecting operating states of an electromagnetically driven device
DE102014209587B4 (en) * 2014-05-20 2016-03-31 Continental Automotive Gmbh Characterization of a measurement channel for measuring a feedback signal generated by an operating fuel injector
DE102015207954B3 (en) * 2015-04-29 2016-06-16 Continental Automotive Gmbh Determining a time of a predetermined opening state of a fuel injector
JP6581420B2 (en) * 2015-07-31 2019-09-25 日立オートモティブシステムズ株式会社 Control device for fuel injection device
US10087866B2 (en) 2015-08-31 2018-10-02 Infineon Technologies Ag Detecting fuel injector timing with current sensing
DE102015219383B3 (en) 2015-10-07 2017-02-09 Continental Automotive Gmbh Determining a time when a fuel injector is in a predetermined state
DE102015219673A1 (en) * 2015-10-12 2017-04-13 Continental Automotive Gmbh Recognizing a predetermined opening state of a magnetic coil drive having a fuel injector
DE102016203182A1 (en) * 2016-02-29 2017-08-31 Robert Bosch Gmbh Method for determining an air gap of a solenoid valve injector
DE102016205268B3 (en) * 2016-03-31 2017-06-08 Continental Automotive Gmbh Determining injection parameter values for fuel injectors
DE102020213169B3 (en) * 2020-10-19 2022-02-03 Vitesco Technologies GmbH Method and device for diagnosing the movement of an armature of a magnetic valve
DE102021208757A1 (en) 2021-08-11 2023-02-16 Robert Bosch Gesellschaft mit beschränkter Haftung Method for determining a characteristic variable of a solenoid valve

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE10129153A1 (en) * 2001-06-16 2003-01-09 Festo Ag & Co Electromagnetic valve with holding current reduction has switching arrangement that changes to lower holding current depending on parameter variation when valve switched
US20080148831A1 (en) * 2006-10-27 2008-06-26 Ford Motor Company Methods and systems for testing electromagnetically actuated fuel injectors
DE102007063479A1 (en) * 2007-12-20 2008-11-20 Siemens Ag Method for producing signal, involves displaying armature of electromagnets, which attain end position and current is measured continuously which is flowing by electromagnets
DE102009045307A1 (en) * 2009-10-02 2011-04-07 Robert Bosch Gmbh Method and control device for operating a valve

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DE4142996A1 (en) * 1991-12-24 1993-07-01 Bosch Gmbh Robert METHOD FOR MEASURING THE MECHANICAL MOVEMENT OF A SOLENOID VALVE ARMOR, ESPECIALLY ELECTRICALLY CONTROLLED INJECTION SYSTEMS
DE19736773A1 (en) * 1997-08-23 1999-02-25 Bosch Gmbh Robert Sensor arrangement for detecting the position of an electromagnetically moved armature
DE102007031552A1 (en) * 2007-07-06 2009-01-08 Robert Bosch Gmbh Method for determining a position of an armature in a solenoid valve and device for operating a solenoid valve with an armature

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10129153A1 (en) * 2001-06-16 2003-01-09 Festo Ag & Co Electromagnetic valve with holding current reduction has switching arrangement that changes to lower holding current depending on parameter variation when valve switched
US20080148831A1 (en) * 2006-10-27 2008-06-26 Ford Motor Company Methods and systems for testing electromagnetically actuated fuel injectors
DE102007063479A1 (en) * 2007-12-20 2008-11-20 Siemens Ag Method for producing signal, involves displaying armature of electromagnets, which attain end position and current is measured continuously which is flowing by electromagnets
DE102009045307A1 (en) * 2009-10-02 2011-04-07 Robert Bosch Gmbh Method and control device for operating a valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105378252A (en) * 2013-07-24 2016-03-02 大陆汽车有限公司 Determination of the point in time of a predetermined open state of a fuel injector

Also Published As

Publication number Publication date
DE102011076363A1 (en) 2012-11-29
WO2012159877A2 (en) 2012-11-29
DE102011076363B4 (en) 2015-08-20

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