EP1561937A1 - Verfahren zur Steuerung eines Einspritzventils einer Brennkraftmaschine - Google Patents
Verfahren zur Steuerung eines Einspritzventils einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1561937A1 EP1561937A1 EP05100174A EP05100174A EP1561937A1 EP 1561937 A1 EP1561937 A1 EP 1561937A1 EP 05100174 A EP05100174 A EP 05100174A EP 05100174 A EP05100174 A EP 05100174A EP 1561937 A1 EP1561937 A1 EP 1561937A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- actuator
- time
- internal combustion
- drive signal
- maximum
- 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
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 15
- 239000000446 fuel Substances 0.000 title claims abstract description 6
- 238000002347 injection Methods 0.000 claims abstract description 46
- 239000007924 injection Substances 0.000 claims abstract description 46
- 239000007858 starting material Substances 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims 2
- 238000011156 evaluation Methods 0.000 claims 1
- 230000004913 activation Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
-
- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- 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
- F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric 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
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/063—Lift of the valve needle
-
- 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
- F02D41/3809—Common rail control systems
Definitions
- the invention relates to a method for controlling an injection valve an internal combustion engine, in particular a Piezoinjektors, during the starting phase of the internal combustion engine, in particular a common rail engine with direct injection.
- injectors by means of the needle stop detection, must be stationary operating points a defined activation duration as a function of the injection pressure for several seconds. After that, the determined actuator energy of the individual injectors the injection parameter set be assigned and stored. Around For example, evaluate the needle stop signal safely can, the injector must be with a minimum drive time and a minimum injection pressure can be controlled. This means that already injected several milligrams of fuel or that the engine is already in the middle Part load operation is located. This puts both in the idle point and in the lower part load range as well as during initial commissioning of the system is a problem.
- the invention is based on the object, a method to imagine that an equalization of the injectors already during the starting phase of the internal combustion engine (BKM) allows.
- BKM internal combustion engine
- the inventive method may, for example, the needle stop an engine actuator already during the Detect start phase of the internal combustion engine.
- the actuator is triggered by a drive signal acted upon so that when reaching the maximum needle stroke of the actuator, the drive signal is changed. This is recognizable by the voltage applied to the actuator (injector) reduced by one to several volts. This change of the drive signal is then evaluated.
- An advantageous embodiment of the invention is the rotational speed to keep the starter constant.
- the driving time during the Anticiansvons to keep constant. This is particularly advantageous because a compensation of the injection quantity differences between the individual injectors under defined stationary operating points takes place, which are rarely reached while driving, especially before the first commissioning of the system.
- a further advantageous embodiment of the invention is the specific actuator energy and the associated injection parameters store, and then the injection pressure to change a certain amount, d. H. for example increase the injection pressure by 100 bar.
- d. H. for example increase the injection pressure by 100 bar.
- each actuator Impact energy to reach the maximum needle stroke certainly.
- These steps are repeated until the Injection pressure has reached an extreme value. In this case For example, this could be a maximum pressure of 1500 bar. This is particularly advantageous since a calibration of the Injection achieved on the associated injection parameters can be.
- the figure shows the time course of three drive signals.
- a first injector (actuator).
- the curve 1 of a triangular signal whose maximum value is designated as U 1 , causes a pilot injection.
- the main injection starts at time t 1 , which lasts until time t 4 .
- This main injection curve 2 has a duration of approximately 600 ⁇ sec. This is the difference between time t 4 and time t 1 .
- the voltage is applied at the time t 1 , at the time t 5 the maximum voltage U 1 (eg 100 V) is applied.
- the needle is raised until it has reached its maximum stroke at time t 2 .
- the voltage decreases by a few volts, which can be seen in the change 10 of the curve 2.
- the drive signal of the first actuator is taken as a reference for the signals of the other actuators.
- the time t 2 is considered ideal.
- the drive signal of a second actuator (injector) is considered, which is operated with the same maximum voltage U 1 , it may happen that due to manufacturing tolerances, the maximum stop takes place, for example, not ideal time t 3 , ie later than the first actuator.
- the control curve of the second actuator is marked with 3 and shown in dotted. As already mentioned, the voltage dip takes place at the time t 3 and is identified by the reference numeral 11. Since the engine control of the BKM is triggered by the stop signal, the second actuator is first stopped at time t 6 . This has the consequence that the injection quantity delivered by this second actuator is higher.
- the maximum voltage applied to the second injector is changed with the method according to the invention such that the voltage drop arrives at the ideal time.
- This is shown by the dashed curve 4 shown.
- the second actuator needs a maximum voltage U 2 (for example, 135 V) to achieve a voltage dip at the same ideal time t 2 , ie, that the needle reaches its maximum lift.
- U 2 for example, 135 V
- the curve 3 changes in curve 4, wherein the kink 11 comes earlier and the amplitude is increased accordingly. This has the consequence that the associated pilot injection 7 shown in dashed lines, also has a higher amplitude of the voltage.
- step S1 an initialization occurs at engine start, that is, the crankshaft of the engine is driven by the electric starter.
- step S2 is waited until predetermined activation conditions are met. These activation conditions include constant injection pressure, fixed start of injection, constant speed. As soon as such a defined stationary operating point is present, the injection parameters for a specific injection pressure p i are loaded in step S4. The initial pressure is for example 400 bar. The high pressure pump takes about 1 second to build up this pressure.
- the actuator energy is adjusted in a cylinder-selective manner in step S5. Thus, a voltage of, for example, 130 V is applied and looked at when the voltage dip 10 or 11 arrives.
- step S7 There the associated injection parameters i are stored. As mentioned above, the initial pressure p 1 is 400 bar. In step S8, the injection pressure p.sub.i is checked. If it is below a maximum pressure of 1500 bar, for example, it goes to step S9. There, the applied pressure is increased by, for example, 100 bar. In step S10, only the index is increased by 1, in which case the associated parameters p 2 are loaded in step S4. Now there is an injection pressure of 500 bar. Accordingly, the steps S5 to S8 are then performed.
- the actuator energy of the individual injectors were adjusted for the different injection pressures.
- the starting of the engine can be started. Once the injected into the combustion chamber of the engine fuel itself has ignited, the activation of the electric starter can be stopped.
- Another advantage of The method according to the invention is the injection parameters and to optimize the actuator energy for cold starts. Especially at outside temperatures of up to -30 ° C, the inventive Process very beneficial, since the viscosity of the fuel thereby increases and that for the driving The energy required by the injector is also different at a normal temperature of about 25 ° C.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
- Figur 1
- den zeitlichen Verlauf der an zwei Injektoren angelegte Ansteuersignale;
- Figur 2
- ein Ablaufdiagramm zur Bestimmung der Aktorenergie für verschiedene Einspritzparameter.
Claims (12)
- Verfahren zur Steuerung eines Einspritzventils einer Brennkraftmaschine, insbesondere eines Piezoinjektors, während der Startphase der Brennkraftmaschine, gekennzeichnet durch folgende Schritte:a) die Kurbelwelle der Brennkraftmaschine wird durch einen Starter, insbesondere durch einen Elektrostarter, gedreht;b) der Aktor des Einspritzventils wird mit einem Ansteuersignal derart beaufschlagt, dass beim Erreichen des maximalen Nadelhubs des Aktors das Ansteuersignal verändert wird;d) diese Änderung des Ansteuersignals wird ausgewertet.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Umdrehungsgeschwindigkeit des Starters in Schritt a) konstant ist, bevor Schritt b) ausgeführt wird.
- Verfahren nach einem der obigen Ansprüche, dadurch gekennzeichnet, dass in Schritt c) die elektrische Spannung des Ansteuersignals absinkt.
- Verfahren nach mindestens einem der obigen Ansprüche, dadurch gekennzeichnet, dass die Einspritzmenge des durch den Aktor eingespritzten Brennkraftstoffs pro Kolbenhub mindestens 20mg beträgt.
- Verfahren nach mindestens einem der obigen Ansprüche, dadurch gekennzeichnet, dass bei der Auswertung in Schritt d) der Zeitpunkt (t3) bestimmt wird, bei dem die Nadel des Aktors den maximalen Hub erreicht hat.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass nach Schritt d) Schritt e) folgt, wobei in Schritt e) die Energie des Ansteuersignals angepasst wird, wenn der Zeitpunkt für das Erreichen des maximalen Nadelhubs von einem idealen Zeitpunkt (t2) abweicht.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Spannung des Ansteuersignals entsprechend angehoben wird, wenn der Zeitpunkt (t3) für das Erreichen des maximalen Nadelhubs nach dem idealen Zeitpunkt (t2) eintritt und dass die Spannung des Ansteuersignals entsprechend verringert wird, wenn der Zeitpunkt für das Erreichen des maximalen Nadelhubs vor dem idealen Zeitpunkt (t2) eintritt.
- Verfahren nach einem der obigen Ansprüche, dadurch gekennzeichnet, dass die Brennkraftmaschine mehrere Aktoren aufweist, wobei in Schritt d) für jeden Aktor der jeweilige Zeitpunkt für das Erreichen des maximalen Nadelhubs bestimmt wird und in Schritt e) die Energie der Ansteuersignale aller Aktoren angepasst wird, so dass die Spannungsabsenkung für jeden Aktor zum idealen Zeitpunkt (t2) eintritt.
- Verfahren nach mindestens einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass nach Schritt e) ein Schritt f) folgt, wobei in Schritt f) die für jeden Aktor nötige Energie zur Erreichung des maximalen Nadelhubs zum idealen Zeitpunkt bestimmt und abgespeichert wird.
- Verfahren nach mindestens einem der obigen Ansprüche, dadurch gekennzeichnet, dass nach Schritt f) ein Schritt g) folgt, wobei in Schritt g) der Einspritzdruck des Aktors um einen bestimmten Betrag verändert wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass die Schritte b) bis f) solange in alphabethischer Reihenfolge wiederholt werden, bis der Einspritzdruck einen Extremwert erreicht hat.
- Verfahren nach mindestens einem der obigen Ansprüche, dadurch gekennzeichnet, dass der Einspritzbeginn der Aktoren derart eingestellt ist, dass die Brennkraftmaschine nicht anspringt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004006297A DE102004006297B4 (de) | 2004-02-09 | 2004-02-09 | Verfahren zur Steuerung eines Einspritzventils einer Brennkraftmaschine |
DE102004006297 | 2004-02-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1561937A1 true EP1561937A1 (de) | 2005-08-10 |
EP1561937B1 EP1561937B1 (de) | 2010-01-06 |
Family
ID=34673216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05100174A Expired - Fee Related EP1561937B1 (de) | 2004-02-09 | 2005-01-13 | Verfahren zur Steuerung eines Einspritzventils einer Brennkraftmaschine |
Country Status (3)
Country | Link |
---|---|
US (1) | US7131429B2 (de) |
EP (1) | EP1561937B1 (de) |
DE (2) | DE102004006297B4 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2048343A1 (de) * | 2007-10-11 | 2009-04-15 | Delphi Technologies, Inc. | Fehlererkennung in einer Injektoranordnung |
WO2010023041A1 (de) * | 2008-08-25 | 2010-03-04 | Robert Bosch Gmbh | Verfahren zum betreiben einer kraftstoffeinspritzvorrichtung einer brennkraftmaschine |
CN112727622A (zh) * | 2020-12-31 | 2021-04-30 | 清华大学 | 蓄压泵式燃油喷射系统油量控制方法、电控设备及发动机 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004058971B4 (de) * | 2004-12-08 | 2006-12-28 | Volkswagen Mechatronic Gmbh & Co. Kg | Verfahren zum Steuern eines piezoelektrischen Aktors und Steuereinheit zum Steuern eines piezoelektrischen Aktors |
DE102007054374A1 (de) * | 2007-11-14 | 2009-05-20 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Kalibrierung eines in einem Kraftfahrzeug zum Antrieb eines Schaltventils betriebenen Piezo-Aktuators |
DE102011087961A1 (de) * | 2011-12-08 | 2013-06-13 | Robert Bosch Gmbh | Verfahren zum Lernen einer minimalen Ansteuerdauer von Einspritzventilen eines Verbrennungsmotors |
CH707935A1 (de) * | 2013-04-19 | 2014-10-31 | Liebherr Machines Bulle Sa | Steuerung für ein Common-Rail-Einspritzsystem. |
DE102013207555B3 (de) * | 2013-04-25 | 2014-10-09 | Continental Automotive Gmbh | Verfahren zur Einspritzmengenadaption |
DE102016115298A1 (de) * | 2015-11-06 | 2017-05-11 | L'orange Gmbh | Verfahren zur Steuerung eines Kraftstoff-Einspritzinjektors für eine Brennkraftmaschine |
US10371082B1 (en) | 2018-01-22 | 2019-08-06 | Delphi Technologies Ip Limited | Fuel injector control including state selection based on a control signal characteristic |
US10221800B1 (en) | 2018-01-22 | 2019-03-05 | Delphi Technologies Ip Limited | Fuel injector control including adaptive response |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5865371A (en) * | 1996-07-26 | 1999-02-02 | Siemens Automotive Corporation | Armature motion control method and apparatus for a fuel injector |
US6260521B1 (en) * | 1999-01-25 | 2001-07-17 | Daimlerchrysler Ag | Method for controlling the supply of electrical energy to an electromagnetic device and use of a sliding mode controller |
US20020152985A1 (en) * | 2001-04-20 | 2002-10-24 | Wolff Peter U. | System, apparatus including on-board diagnostics, and methods for improving operating efficiency and durability of compression ignition engines |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6056948B2 (ja) * | 1977-02-08 | 1985-12-12 | 株式会社日本自動車部品総合研究所 | 電磁弁駆動装置 |
US5053911A (en) * | 1989-06-02 | 1991-10-01 | Motorola, Inc. | Solenoid closure detection |
JP3529577B2 (ja) * | 1997-02-14 | 2004-05-24 | 本田技研工業株式会社 | 燃料噴射弁制御装置 |
JP2963407B2 (ja) * | 1997-02-14 | 1999-10-18 | 本田技研工業株式会社 | 燃料噴射弁制御装置 |
DE10163894A1 (de) * | 2001-12-22 | 2003-07-03 | Daimler Chrysler Ag | Brennkraftmaschine mit Direkteinspritzung |
DE10206906C1 (de) * | 2002-02-19 | 2003-11-06 | Siemens Ag | Verfahren zur Steuerung einer durch Pienoinjektor eingespritzten Kraftstoffmenge |
EP1488088B1 (de) * | 2002-03-27 | 2007-05-23 | Volkswagen Mechatronic GmbH & Co. KG | Verfahren und vorrichtung zur detektion des einschlagzeitpunktes der ventilnadel eines piezo-steuerventils |
DE10233778A1 (de) * | 2002-07-25 | 2004-02-05 | Robert Bosch Gmbh | Verfahren zum Verbessern des Rundlaufs einer Brennkraftmaschine |
-
2004
- 2004-02-09 DE DE102004006297A patent/DE102004006297B4/de not_active Expired - Fee Related
-
2005
- 2005-01-13 DE DE502005008803T patent/DE502005008803D1/de active Active
- 2005-01-13 EP EP05100174A patent/EP1561937B1/de not_active Expired - Fee Related
- 2005-02-09 US US11/053,996 patent/US7131429B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5865371A (en) * | 1996-07-26 | 1999-02-02 | Siemens Automotive Corporation | Armature motion control method and apparatus for a fuel injector |
US6260521B1 (en) * | 1999-01-25 | 2001-07-17 | Daimlerchrysler Ag | Method for controlling the supply of electrical energy to an electromagnetic device and use of a sliding mode controller |
US20020152985A1 (en) * | 2001-04-20 | 2002-10-24 | Wolff Peter U. | System, apparatus including on-board diagnostics, and methods for improving operating efficiency and durability of compression ignition engines |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2048343A1 (de) * | 2007-10-11 | 2009-04-15 | Delphi Technologies, Inc. | Fehlererkennung in einer Injektoranordnung |
US8248074B2 (en) | 2007-10-11 | 2012-08-21 | Delphi Technologies Holding S.Arl | Detection of faults in an injector arrangement |
WO2010023041A1 (de) * | 2008-08-25 | 2010-03-04 | Robert Bosch Gmbh | Verfahren zum betreiben einer kraftstoffeinspritzvorrichtung einer brennkraftmaschine |
CN112727622A (zh) * | 2020-12-31 | 2021-04-30 | 清华大学 | 蓄压泵式燃油喷射系统油量控制方法、电控设备及发动机 |
Also Published As
Publication number | Publication date |
---|---|
DE102004006297A1 (de) | 2005-09-08 |
DE102004006297B4 (de) | 2007-05-16 |
US20050199221A1 (en) | 2005-09-15 |
DE502005008803D1 (de) | 2010-02-25 |
EP1561937B1 (de) | 2010-01-06 |
US7131429B2 (en) | 2006-11-07 |
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