EP2556230A1 - Verfahren zum anpassen der tatsächlichen einspritzmenge, einspritzvorrichtung und brennkraftmaschine - Google Patents
Verfahren zum anpassen der tatsächlichen einspritzmenge, einspritzvorrichtung und brennkraftmaschineInfo
- Publication number
- EP2556230A1 EP2556230A1 EP11714253A EP11714253A EP2556230A1 EP 2556230 A1 EP2556230 A1 EP 2556230A1 EP 11714253 A EP11714253 A EP 11714253A EP 11714253 A EP11714253 A EP 11714253A EP 2556230 A1 EP2556230 A1 EP 2556230A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engine
- injection
- test
- cycle
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 66
- 239000007924 injection Substances 0.000 title claims abstract description 66
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 claims abstract description 55
- 239000000446 fuel Substances 0.000 claims abstract description 36
- 230000001133 acceleration Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
-
- 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
- F02D41/2438—Active learning methods
-
- 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
- F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
-
- 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
- F02D41/247—Behaviour for small quantities
-
- 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
- F02D41/008—Controlling each cylinder individually
- F02D41/0085—Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/402—Multiple injections
Definitions
- the present invention relates to a method for adjusting the actual injection quantity of an injector
- the invention further relates to a
- the inventive method is particularly applicable to internal combustion engines with so-called common-rail injection tongues, in which a plurality of - typically all - injectors are supplied with a common fuel line, which is under a substantially uniformly high pressure. The injected at the beginning of each cycle in each cylinder of the internal combustion engine
- injection quantities are typically metered in primarily by the injection valves or injectors having a shorter or longer selected activation duration
- crankshaft / engine speed signal to perform.
- acceleration of the crankshaft of the internal combustion engine occurs. This acceleration can be in the speed signal of the
- Engine speed is determined and used as an indication of the actual injected fuel quantity. On the basis of the determined actually injected fuel quantity then the control data of the injector of
- the present invention has for its object to provide a method of the type described above, with a particularly rapid correction or
- Fuel quantity of the injector is detected and corrected by a test injection pulse during the normal fired operating condition (during the normal ignition phase) of the internal combustion engine.
- the actual injected fuel quantity does not become during one phase
- the method is suitable for all types of vehicles, since the normal fired operating state is always present.
- the adaptation or correction of the drive data of the injector can be carried out very quickly.
- the detection in the disengaged state avoids a corresponding calibration effort for different transmission types.
- the detection of the injected fuel quantity is made by comparing a normal injection cycle with a test cycle corresponding to the normal injection cycle and at least one additional defined test pulse
- Injection pattern with and without test pulses has.
- the normal injection cycle is specified here by the request of the driver or a control unit.
- Test cycle is a copy of the normal
- Injection cycle with one or more additional Test pulses. Both cycles are compared with each other, the difference between the two cycles being an indication of the injected fuel quantity. With this method, absolute quantities of fuel can be determined.
- detection is accomplished by comparing two cycles with different ones
- a first injection cycle has one or more defined test pulses.
- the second cycle also has one or more defined ones
- Test pulses From the difference of the cycles differences in the injected fuel quantities can be determined.
- the test cycle becomes a copy of the configuration of the normalized by the speed control
- Injection cycle is carried out with at least one additional defined test pulse by "frozen" the speed control for the test cycle in at least one segment This is preferably carried out when the
- Idle speed is located, i. at least the
- Injection parameters in the test segment correspond to the parameters of the last combustion cycle, apart from the defined test injection pulse. Depending on the signal curve and evaluation, the parameters for other segments are copied from the previous cycle.
- the injection cycle is preferably in n-segments
- Fuel quantity is determined from the difference of the speed or acceleration signal of the first n-segments and the subsequent n-segments, n preferably corresponds to the number of cylinders.
- n preferably corresponds to the number of cylinders.
- Test pulse determined that corresponds to the effect achieved by the test pulse or the corresponding combustion.
- a statistically significant value is obtained from a plurality of combustion signals.
- the actual injected fuel quantity is then determined from the combustion signal or the statistically relevant value of the combustion signals.
- the control data of the injector or of the injectors of the internal combustion engine are then corrected or adjusted such that the defined amount of fuel or desired fuel quantity is injected exactly over the service life of the injector.
- the invention further relates to a
- Einsprit zVorrauma for an internal combustion engine which is a control for injection valves of the internal combustion engine
- Internal combustion engine comprising such an injection device.
- FIG. 1 shows a schematic representation of examples of injection configurations
- Figure 2 is a diagram showing an example of a through
- FIG. 3 Diagram showing a calculated burn
- FIG. 4 shows a diagram which schematically shows the injected fuel quantity in dependence
- Figure 1 shows the injection configurations in the
- Einsprit z cycle is defined by the idle speed control.
- the injected injection cycle is a copy of the injection configuration at
- Test cycle is "frozen", i.e. that the
- Injection parameters of all injection pulses correspond to the parameters of the last combustion cycle, apart from the defined test injection pulse.
- Cylinders has a combustion cycle four segments. The difference between the first four segments and the subsequent four segments corresponds exactly to the test pulse By comparing the speed signal or
- the combustion generated by the test pulse can be calculated or calculated. For example, several test pulses are included
- Figure 1 shows on the left side the injection pattern in the normal cycle (with active control) and on the right side the injection pattern in the test cycle (with "frozen” control) over four segments each In contrast to the normal cycle there is a test pulse in segment 0. Incidentally, identical parameters exist for identical segments.
- Figure 2 is a schematic representation of a graph illustrating an example of one calculated from a test pulse
- Acceleration signal N DF represents.
- a test pulse in the segment 0 is delivered and realized.
- the acceleration and deceleration of the crankshaft can be detected in segments 2 and 3.
- the "effect" produced by the test pulse or the combustion caused thereby can be determined.
- SIG_CMB (ai -N_DF (0) + a 2 -N_DF (1) + a 3 -N_DF (2) + a 4 -N_DF (3)) Sum of N_DF after test pulse - (a 5 -N_DF (0) + a 6 -N_DF (1) + a 7 -N_DF (2) + a 8 -N_DF (3))
- N_DF (0) to N_DF (3) represent the acceleration values to be assigned to the segments 0-3.
- the values ai. , are weighting parameters that are configured according to the occurrence of acceleration and deceleration in the corresponding segment.
- FIG. 3 shows the combustion signal SIG CMB calculated according to the previous equation for the different ones
- Test pulses determined according to the method described. For a more reliable result, filtering or averaging techniques may find application. By simple averaging after excluding the maximum and minimum, the statistical
- Combustion value sig_cmb_mean be calculated.
- Fuel quantity is known because it can be determined experimentally. On the basis of the determined actually injected fuel quantity then the control data of the corresponding injector of the internal combustion engine
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010014320.0A DE102010014320B4 (de) | 2010-04-09 | 2010-04-09 | Verfahren zum Anpassen der tatsächlichen Einspritzmenge, Einspritzvorrichtung und Brennkraftmaschine |
PCT/EP2011/055306 WO2011124584A1 (de) | 2010-04-09 | 2011-04-06 | Verfahren zum anpassen der tatsächlichen einspritzmenge, einspritzvorrichtung und brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2556230A1 true EP2556230A1 (de) | 2013-02-13 |
EP2556230B1 EP2556230B1 (de) | 2017-06-14 |
Family
ID=44275672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11714253.9A Active EP2556230B1 (de) | 2010-04-09 | 2011-04-06 | Verfahren zum anpassen der tatsächlichen einspritzmenge, einspritzvorrichtung und brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US9074547B2 (de) |
EP (1) | EP2556230B1 (de) |
CN (1) | CN102812225B (de) |
DE (1) | DE102010014320B4 (de) |
WO (1) | WO2011124584A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010014320B4 (de) | 2010-04-09 | 2016-10-27 | Continental Automotive Gmbh | Verfahren zum Anpassen der tatsächlichen Einspritzmenge, Einspritzvorrichtung und Brennkraftmaschine |
DE102010024568B4 (de) | 2010-06-22 | 2015-12-10 | Continental Automotive Gmbh | Erfassungsverfahren und Adaptionsverfahren einer von einem Injektor eingespritzten Kraftstoffmenge sowie dazugehörige Steuereinheit und Kraftfahrzeug |
DE102010043989B4 (de) | 2010-11-16 | 2020-06-25 | Continental Automotive Gmbh | Adaptionsverfahren eines Injektors einer Brennkraftmaschine |
GB2495755A (en) * | 2011-10-20 | 2013-04-24 | Gm Global Tech Operations Inc | Correction of fuel injection timings in an internal combustion engine |
DE102013207555B3 (de) * | 2013-04-25 | 2014-10-09 | Continental Automotive Gmbh | Verfahren zur Einspritzmengenadaption |
DE102013208268B4 (de) * | 2013-05-06 | 2018-05-09 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Betreiben einer Einspritzvorrichtung |
US9683510B2 (en) * | 2014-04-01 | 2017-06-20 | GM Global Technology Operations LLC | System and method for improving fuel delivery accuracy by learning and compensating for fuel injector characteristics |
US9458789B2 (en) | 2014-04-01 | 2016-10-04 | GM Global Technology Operations LLC | Missed fuel injection diagnostic systems and methods |
US9708998B2 (en) | 2014-04-01 | 2017-07-18 | GM Global Technology Operations LLC | System and method for improving fuel delivery accuracy by detecting and compensating for fuel injector characteristics |
US9435289B2 (en) | 2014-04-01 | 2016-09-06 | GM Global Technology Operations LLC | Systems and methods for minimizing throughput |
DE102015217955A1 (de) * | 2014-10-21 | 2016-04-21 | Robert Bosch Gmbh | Vorrichtung zur Steuerung von wenigstens einem schaltbaren Ventil |
GB2533464A (en) * | 2015-10-20 | 2016-06-22 | Gm Global Tech Operations Llc | Method of operating a fuel injector of an internal combustion engine |
US20170314498A1 (en) * | 2016-04-28 | 2017-11-02 | General Electric Company | System and method for fuel injection control |
DE102016226132A1 (de) * | 2016-12-23 | 2018-06-28 | Robert Bosch Gmbh | Verfahren zum Ermitteln einer Einspritzmenge eines Injektors |
DE102017203794A1 (de) * | 2017-03-08 | 2018-09-13 | Robert Bosch Gmbh | Verfahren zur Nullmengenkalibrierung von mittels Injektoren zugemessenem Kraftstoff in einer Brennkraftmaschine |
US11352973B2 (en) * | 2019-04-04 | 2022-06-07 | Caterpillar Inc. | Machine system and operating strategy using auto-population of trim files |
DE102022209727B4 (de) | 2022-09-16 | 2024-03-28 | Vitesco Technologies GmbH | Verfahren zum Betreiben eines Kraftstoff-Einspritzsystems eines Verbrennungsmotors |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5385129A (en) * | 1991-07-04 | 1995-01-31 | Robert Bosch Gmbh | System and method for equalizing fuel-injection quantities among cylinders of an internal combustion engine |
DE19700711C2 (de) | 1997-01-10 | 1999-05-12 | Siemens Ag | Verfahren zum Ausgleich des systematischen Fehlers an Einspritzvorrichtungen für eine Brennkraftmaschine |
DE19741965C1 (de) * | 1997-09-23 | 1999-01-21 | Siemens Ag | Verfahren zur Laufruheregelung |
JP2001349243A (ja) * | 2000-06-07 | 2001-12-21 | Isuzu Motors Ltd | エンジンの燃料噴射制御装置 |
ITTO20020698A1 (it) * | 2002-08-06 | 2004-02-07 | Fiat Ricerche | Metodo e dispositivo di controllo della qualita' |
DE10257686A1 (de) * | 2002-12-10 | 2004-07-15 | Siemens Ag | Verfahren zum Anpassen der Charakteristik eines Einspritzventils |
DE10305523A1 (de) * | 2003-02-11 | 2004-08-19 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Nullmengenkalibrierung eines Kraftstoffeinspritzsystems eines Kraftfahrzeuges im Fahrbetrieb |
DE102004006554B3 (de) * | 2004-02-10 | 2005-06-30 | Siemens Ag | Verfahren zur Zylindergleichstellung bezüglich der Kraftstoff-Einspritzmengen bei einer Brennkraftmaschine |
JP4289280B2 (ja) | 2004-11-01 | 2009-07-01 | 株式会社デンソー | 噴射量学習制御装置 |
DE102006026640A1 (de) * | 2006-06-08 | 2007-12-13 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine |
JP4442670B2 (ja) * | 2007-09-19 | 2010-03-31 | 株式会社デンソー | 内燃機関の燃料噴射制御装置 |
DE102010014320B4 (de) | 2010-04-09 | 2016-10-27 | Continental Automotive Gmbh | Verfahren zum Anpassen der tatsächlichen Einspritzmenge, Einspritzvorrichtung und Brennkraftmaschine |
DE102010043989B4 (de) * | 2010-11-16 | 2020-06-25 | Continental Automotive Gmbh | Adaptionsverfahren eines Injektors einer Brennkraftmaschine |
GB2498783A (en) * | 2012-01-27 | 2013-07-31 | Gm Global Tech Operations Inc | A method of operating an internal combustion engine to provide correction of fuel injection times and indication of injector failure |
GB2500890A (en) * | 2012-04-02 | 2013-10-09 | Gm Global Tech Operations Inc | Method of compensating an injection timing drift in a fuel injection system |
-
2010
- 2010-04-09 DE DE102010014320.0A patent/DE102010014320B4/de not_active Expired - Fee Related
-
2011
- 2011-04-06 CN CN201180018168.XA patent/CN102812225B/zh active Active
- 2011-04-06 EP EP11714253.9A patent/EP2556230B1/de active Active
- 2011-04-06 WO PCT/EP2011/055306 patent/WO2011124584A1/de active Application Filing
- 2011-04-06 US US13/639,567 patent/US9074547B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2011124584A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102010014320B4 (de) | 2016-10-27 |
CN102812225B (zh) | 2015-11-25 |
EP2556230B1 (de) | 2017-06-14 |
CN102812225A (zh) | 2012-12-05 |
DE102010014320A1 (de) | 2011-10-13 |
US9074547B2 (en) | 2015-07-07 |
US20130024098A1 (en) | 2013-01-24 |
WO2011124584A1 (de) | 2011-10-13 |
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