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 PDFInfo
- 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
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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011076363.5 | 2011-05-24 | ||
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 |
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)
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)
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)
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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
2011
- 2011-05-24 DE DE102011076363.5A patent/DE102011076363B4/en active Active
-
2012
- 2012-05-08 WO PCT/EP2012/058457 patent/WO2012159877A2/en active Application Filing
Patent Citations (4)
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)
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 |
---|---|
WO2012159877A2 (en) | 2012-11-29 |
DE102011076363A1 (en) | 2012-11-29 |
DE102011076363B4 (en) | 2015-08-20 |
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