DE102008041531A1 - Fuel injection device operating method for internal-combustion engine, involves operating valve element by electromagnet, which is strongly active during closing movement of shift valve than during impact of valve element on valve seat - Google Patents
Fuel injection device operating method for internal-combustion engine, involves operating valve element by electromagnet, which is strongly active during closing movement of shift valve than during impact of valve element on valve seat Download PDFInfo
- Publication number
- DE102008041531A1 DE102008041531A1 DE200810041531 DE102008041531A DE102008041531A1 DE 102008041531 A1 DE102008041531 A1 DE 102008041531A1 DE 200810041531 DE200810041531 DE 200810041531 DE 102008041531 A DE102008041531 A DE 102008041531A DE 102008041531 A1 DE102008041531 A1 DE 102008041531A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- valve element
- electromagnet
- pressure
- combustion engine
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0043—Two-way valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
- F02M63/008—Hollow valve members, e.g. members internally guided
-
- 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
- F02D2041/2037—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for preventing bouncing 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
- F02D41/20—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
- F02D2041/2041—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for controlling the current in the free-wheeling phase
-
- 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
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/003—Valve inserts containing control chamber and valve piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft ein Verfahren zum Betreiben einer Einspritzvorrichtung für eine Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1. Außerdem ist Gegenstand der Erfindung eine Steuer- und/oder Regeleinrichtung und ein Computerprogramm nach dem Oberbegriff des entsprechenden nebengeordneten Patentanspruchs.The The invention relates to a method for operating an injection device for an internal combustion engine according to the preamble of the claim 1. In addition, the subject of the invention is a tax and / or Control device and a computer program according to the preamble of corresponding independent claim.
Aus
der
Offenbarung der ErfindungDisclosure of the invention
Aufgabe der Erfindung ist es, ein Verfahren der eingangs genannten Art zu schaffen, bei dem die Einspritzvorrichtung zuverlässig mit einer hohen Schaltperformance und geringem Verschleiß arbeitet. Das Verfahren soll zudem kostengünstig sein.task The invention is to a method of the type mentioned above create, where the injection device reliable works with a high switching performance and low wear. The process should also be inexpensive.
Die Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruch 1 gelöst, sowie durch ein Computerprogramm und eine Steuer- und/oder Regeleinrichtung mit den Merkmalen der nebengeordneten Patentansprüche. Für die Erfindung wichtige Merkmale finden sich ferner in der nachfolgenden Beschreibung und in der Zeichnung, wobei die Merkmale sowohl in Alleinstellung als auch in unterschiedlichen Kombinationen für die Erfindung wichtig sein können, ohne dass hierauf jeweils explizit hingewiesen wird. Vorteilhafte Weiterbildungen finden sich in den Unteransprüchen.The The object is achieved by a method having the features of the claim 1, as well as a computer program and a control and / or control device with the characteristics of the siblings Claims. Features important to the invention can also be found in the following description and in the Drawing, with the characteristics both alone and important in different combinations for the invention can be, without explicit reference becomes. Advantageous developments can be found in the subclaims.
Bei der Kraftstoff-Einspritzvorrichtung wird ein Prellen des Ventilelements verhindert, ohne dass beim Auftreffen des Ventilelements auf dem Ventilsitz ein Stromimpuls erforderlich ist. Dies führt zu einer guten Schaltperformance und geringem Verschleiß. Dennoch kann ein vergleichsweise einfaches Steuergerät eingesetzt werden, dessen thermische Belastung wegen des Wegfalls des kurzen Stromimpulses verringert ist. Hierdurch werden Kosten reduziert. Grundgedanke der Erfindung ist, dass für das Halten des Ventilelements im Ventilsitz eine größere Kraft bereit gestellt wird als während der Schließbewegung des Ventilelements, und zwar nicht durch Hinzufügen einer elektromagnetischen Kraft, sondern durch Vermindern oder gar Weglassen einer in Öffnungsrichtung wirkenden elektromagnetischen Kraft am Ende der Flugphase des Ventilelements.at the fuel injector will bounce the valve element prevented without the impact of the valve element on the Valve seat a current pulse is required. this leads to to a good switching performance and low wear. Yet a comparatively simple control unit can be used whose thermal load is due to the omission of the short Current pulse is reduced. This reduces costs. basic idea The invention is that for holding the valve element provided a larger force in the valve seat is considered during the closing movement of the valve element, and not by adding an electromagnetic Force, but by reducing or even omitting one in the opening direction acting electromagnetic force at the end of the flight phase of the valve element.
Es wird weiter vorgeschlagen, dass der Elektromagnet beim Auftreffen des Ventilelements auf dem Ventilsitz nicht bestromt ist. Damit ist der erfindungsgemäße Effekt maximal. Während der Schließbewegung des Ventilelements wird zunächst ein geringer Strom und damit eine geringe Magnetkraft beibehalten, die die Federkraft etwas reduziert, da die Magnetkraft der Federkraft entgegenwirkt. Wird die Bestromung beendet, so wirkt ausschließlich die reine und somit ”volle” Federkraft am Ende der Schließbewegung.It it is further suggested that the electromagnet upon impact the valve element is not energized on the valve seat. In order to is the effect of the invention maximum. While the closing movement of the valve element is first maintain a low current and thus a low magnetic force, which reduces the spring force somewhat, because the magnetic force of the spring force counteracts. If the energization ends, then acts exclusively the pure and thus "full" spring force at the end the closing movement.
Ergänzend hierzu wird vorgeschlagen, dass die Bestromung des Elektromagneten unmittelbar vor dem Auftreffen des Ventilelements auf dem Ventilsitz beendet wird. Es wird also kurz vor einem Erreichen des Ventilsitzes die Magnetkraft des Elektromagneten vollständig abgebaut, bis kurz davor aber beibehalten. Damit wird eine ungewünschte Beschleunigung des Ventilelements am Ende der Flugphase verhindert.additional For this purpose, it is proposed that the energization of the electromagnet immediately before impact of the valve element on the valve seat is ended. It is therefore just before reaching the valve seat the magnetic force of the electromagnet completely degraded, until just before but maintained. This will be an undesirable Acceleration of the valve element prevented at the end of the flight phase.
Ferner wird vorgeschlagen, dass der Elektromagnet während des gesamten Schließvorgangs des Schaltventils bis unmittelbar vor dem Auftreffen des Ventilelements auf dem Ventilsitz bestromt wird. Dadurch wird während des Schließvorgangs eine kontrollierte Bewegung des Ventilelements mit – im Vergleich zum Zeitpunkt beim und nach dem Auftreffen im Ventilsitz – geringerer in Schließrichtung wirkender Gesamtkraft gewährleistet.Further It is suggested that the electromagnet during the entire closing of the switching valve until immediately energized before hitting the valve element on the valve seat becomes. This will be during the closing process a controlled movement of the valve element with - in comparison at the time of and after hitting the valve seat - lesser ensures total force acting in the closing direction.
Außerdem wird vorgeschlagen, dass die Bestromung des Elektromagneten während der Schließbewegung des Ventilelements von einer Steuer- und Regeleinrichtung auf eine Soll-Bestromung geregelt wird. Das bedeutet, dass durch die entsprechende individuelle Einstellung der Bestromung eine ermittelte Soll-Schließzeit des Ventilelements in der Steuer- und Regeleinrichtung optimal realisiert werden kann. Ein Bremsstrom während der Schließbewegung kann dabei durch ein separates Stromniveau, das von der Steuer- und Regeleinrichtung eingeregelt wird, dargestellt werden.Furthermore It is suggested that the energization of the electromagnet during the closing movement of the valve element from a control and control device is regulated to a desired current. The means that by the appropriate individual attitude the energization of a determined set closing time of the valve element can be optimally realized in the control and regulating device. A braking current during the closing movement can doing so by a separate power level, that of the control and regulating device is adjusted.
Weiterhin wird vorgeschlagen, dass zum Schließen des Ventilelements der Strom zunächst schnell und danach langsam gelöscht wird. Damit eine möglichst schnelle Ventilbewegung beim Schließen realisiert werden kann, wird vorteilhafterweise die Magnetkraft zu Beginn der Schließbewegung schnell verringert, um die Wirkung der Federkraft schnell zu verstärken. Mit abnehmender Bestromung kommt die Wirkung der Federkraft mehr und mehr zum Tragen. Das langsame Verringern des Stromes gegen Ende der Schließbewegung führt zu einer Verringerung der Beschleunigungsbewegung. Unmittelbar vor dem Aufsetzen des Ventilelements auf dem Ventilsitz liegt keine Bestromung mehr vor, die Beschleunigungskraft (und anschließend die Zuhaltekraft) der Feder ist jetzt am größten.Furthermore, it is proposed that the current is first cleared quickly and then slowly to close the valve element. So that the fastest possible valve movement can be realized when closing, advantageously the magnetic force at the beginning of the closing movement is rapidly reduced in order to increase the effect of the spring force quickly. With decreasing energization The effect of the spring force comes more and more to bear. The slow decrease of the current towards the end of the closing movement leads to a reduction of the acceleration movement. Immediately before placing the valve element on the valve seat there is no energization, the acceleration force (and then the locking force) of the spring is now greatest.
Vorteilhaft ist dabei auch, wenn die Bestromung während des Schließens des Ventilelements mindestens zeitweise konstant ist. Dies ist regelungstechnisch einfach realisierbar.Advantageous is also there when the energization during closing of the valve element is at least temporarily constant. This is regulatory easy to implement.
Kurzbeschreibung der FigurenBrief description of the figures
Nachfolgend wird anhand der Figuren ein Ausführungsbeispiel der Erfindung beispielhaft erläutert. Es zeigen:following is an embodiment of the invention with reference to the figures exemplified. Show it:
Detaillierte BeschreibungDetailed description
Das
Schaltventil
Ein
Kraftstoffdruck (Systemdruck) wird direkt von einer Druckquelle
Die
Kraftstoff-Einspritzvorrichtung
Ist das Schaltventil
Is the switching valve
Das
erfindungsgemäße Verfahren verfeinert diese an
sich bekannte Funktion der hubgesteuerten Kraftstoff-Einspritzvorrichtung
Die
in
Die
Schließbewegung der Ventilnadel
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006043677 A1 [0002] DE 102006043677 A1 [0002]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810041531 DE102008041531A1 (en) | 2008-08-25 | 2008-08-25 | Fuel injection device operating method for internal-combustion engine, involves operating valve element by electromagnet, which is strongly active during closing movement of shift valve than during impact of valve element on valve seat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810041531 DE102008041531A1 (en) | 2008-08-25 | 2008-08-25 | Fuel injection device operating method for internal-combustion engine, involves operating valve element by electromagnet, which is strongly active during closing movement of shift valve than during impact of valve element on valve seat |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008041531A1 true DE102008041531A1 (en) | 2010-03-04 |
Family
ID=41605824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810041531 Withdrawn DE102008041531A1 (en) | 2008-08-25 | 2008-08-25 | Fuel injection device operating method for internal-combustion engine, involves operating valve element by electromagnet, which is strongly active during closing movement of shift valve than during impact of valve element on valve seat |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008041531A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011023473A1 (en) * | 2009-08-31 | 2011-03-03 | Robert Bosch Gmbh | Injector for injecting fuel |
EP2453122A1 (en) * | 2010-11-12 | 2012-05-16 | Hitachi Ltd. | Method and control apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine |
CN106065824A (en) * | 2015-04-22 | 2016-11-02 | 罗伯特·博世有限公司 | The method of the valve especially internal combustion engine of motor vehicle injection valve that the manipulation of noise reduction ground can be changed |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006043677A1 (en) | 2005-12-12 | 2007-06-14 | Robert Bosch Gmbh | Solenoid valve controlling method for internal combustion engine, involves carrying out secondary current flow of solenoid valve, where secondary current flow causes attenuation of oscillations of armature plate of set of armatures |
-
2008
- 2008-08-25 DE DE200810041531 patent/DE102008041531A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006043677A1 (en) | 2005-12-12 | 2007-06-14 | Robert Bosch Gmbh | Solenoid valve controlling method for internal combustion engine, involves carrying out secondary current flow of solenoid valve, where secondary current flow causes attenuation of oscillations of armature plate of set of armatures |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011023473A1 (en) * | 2009-08-31 | 2011-03-03 | Robert Bosch Gmbh | Injector for injecting fuel |
EP2453122A1 (en) * | 2010-11-12 | 2012-05-16 | Hitachi Ltd. | Method and control apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine |
CN106065824A (en) * | 2015-04-22 | 2016-11-02 | 罗伯特·博世有限公司 | The method of the valve especially internal combustion engine of motor vehicle injection valve that the manipulation of noise reduction ground can be changed |
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Legal Events
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R012 | Request for examination validly filed | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |