DE102007015876A1 - Drift and malfunctioning recognition method for rail pressure sensor, involves determining pressure of rail pressure sensor as function of control duration difference between pressure multiplication and non-pressure multiplication injection - Google Patents
Drift and malfunctioning recognition method for rail pressure sensor, involves determining pressure of rail pressure sensor as function of control duration difference between pressure multiplication and non-pressure multiplication injection Download PDFInfo
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- DE102007015876A1 DE102007015876A1 DE102007015876A DE102007015876A DE102007015876A1 DE 102007015876 A1 DE102007015876 A1 DE 102007015876A1 DE 102007015876 A DE102007015876 A DE 102007015876A DE 102007015876 A DE102007015876 A DE 102007015876A DE 102007015876 A1 DE102007015876 A1 DE 102007015876A1
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- pressure
- rail pressure
- pressure sensor
- rail
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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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
-
- 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
- F02D41/2474—Characteristics of sensors
-
- 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
- F02D41/3836—Controlling the fuel pressure
- F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
-
- 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
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
- F02D2041/223—Diagnosis of fuel pressure sensors
-
- 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
- F02D2200/0602—Fuel pressure
-
- 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
- F02D2200/0602—Fuel pressure
- F02D2200/0604—Estimation of fuel pressure
-
- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
-
- 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
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Stand der TechnikState of the art
Die vorliegende Erfindung betrifft ein Verfahren, ein Computerprogramm und eine Einrichtung zur Erkennung einer Fehlfunktion, insbesondere einer Drift eines Raildrucksensors gemäß den Oberbegriffen der unabhängigen Ansprüche.The The present invention relates to a method, a computer program and means for detecting a malfunction, in particular a drift of a rail pressure sensor according to the preambles of the independent claims.
Ein
Common-Rail-Kraftstoffeinspritzsystem ist beispielsweise aus der
Offenbarung der ErfindungDisclosure of the invention
Eine Aufgabe der vorliegenden Erfindung ist es daher, ein Verfahren und eine Einrichtung zur Erkennung einer Fehlfunktion beziehungsweise einer Drift eines Raildruck sensors bei Kraftstoffeinspritzsystemen mit zuschaltbarer Druckübersetzung anzugeben, um diese gegebenenfalls zu kompensieren oder zu überwachen.A Object of the present invention is therefore to provide a method and a device for detecting a malfunction or a drift of a rail pressure sensor in fuel injection systems with switchable pressure intensification to compensate or monitor them if necessary.
Vorteile der ErfindungAdvantages of the invention
Dieses Problem wird gelöst durch ein Verfahren zur Erkennung einer Fehlfunktion und insbesondere einer Drift eines Raildrucksensors bei einem Kraftstoffeinspritzsystem mit zuschaltbarer Druckübersetzung, wobei eine Differenz zwischen einem vorgegebenen Druck des Raildrucksensors, im Weiteren Soll-Raildruck genannt, und einem zu bestimmenden Druck des Raildrucksensors, im Weiteren Ist-Raildruck genannt, einer Drift des Raildrucksensors entspricht, wobei beim Aktivieren und Deaktivieren der Druckübersetzung des Kraftstoffeinspritzsystems der zu bestimmende Raildruck als Funktion einer Differenz der Ansteuerdauer eines Injektors des Einspritzsystems zwischen druckübersetzter und nicht-druckübersetzter Einspritzung bestimmt wird. Dabei wird die Ansteuerdauerdifferenz durch eine Regelung der Einspritzmengen ermittelt bzw. bereitgestellt. Die Ansteuerdauerdifferenz wird vorzugsweise direkt aus den Ansteuerdauern eines Reglers (z.B. des Steuergerätes) mit und ohne Druckübersetzung ermittelt. Da die vorliegende Erfindung auf der Einspritzmengencharakteristik beruht, kann das erfindungsgemäße Verfahren mit einem herkömmlichen Kraftstoffeinspritzsystem verwendet werden, ohne zusätzliche konstruktive Maßnahmen, wie beispielsweise zusätzliche Sensoren zur Erkennung einer Drift oder einer Fehlfunktion des Raildrucksensors, treffen zu müssen.This Problem is solved by a method for detecting a malfunction and in particular a drift of a rail pressure sensor in a fuel injection system with switchable pressure ratio, wherein a difference between a predetermined pressure of the rail pressure sensor, hereinafter referred to as nominal rail pressure, and a pressure to be determined the rail pressure sensor, hereinafter called the actual rail pressure, a drift corresponds to the rail pressure sensor, wherein when activating and deactivating the pressure translation the fuel injection system to be determined rail pressure than Function of a difference in the activation duration of an injector of the injection system between intensified and non-pressure translated Injection is determined. In this case, the drive duration difference determined or provided by a regulation of the injection quantities. The drive duration difference is preferably directly from the drive periods a controller (e.g., the controller) with and without pressure boost determined. Since the present invention is based on the injection quantity characteristic based, the inventive method with a conventional one Fuel injection system can be used without additional constructive measures, such as additional Sensors for detecting a drift or malfunction of the rail pressure sensor, to have to meet.
Somit werden die Einspritzmengencharakteristiken von Kraftstoffeinspritzsystemen zur Bestimmung der Fehlfunktion bzw. der Drift des Raildrucksensors herangezogen. Mit der erfindungsgemäßen Lösung kann die Haltbarkeit und Festigkeit der Elemente des Krafteinspritzsystems sichergestellt werden, bei einer gleichzeitigen Einhaltung der Schadstoffgrenzwerte und der Einspritzmengengenauigkeit.Consequently become the injection quantity characteristics of fuel injection systems to determine the malfunction or drift of the rail pressure sensor used. With the solution according to the invention, the durability and Strength of the elements of the power injection system ensured with simultaneous compliance with the pollutant limit values and the injection quantity accuracy.
Vorzugsweise wird die Ansteuerdauerdifferenz durch die Regelung einer Ist-Einspritzmenge auf eine Soll-Einspritzmenge bestimmt, wobei die Soll-Einspritzmenge konstant ist. Die Abhängigkeit zwischen Raildruck und Differenz der Ansteuerdauern für konstante Einspritzmengen wird bevorzugt als Kennfeld in einer Steuerung des Einspritzsystems hinterlegt. Aus einem in der Steuerung hinterlegten weiteren Kenn feld wird bevorzugt die Differenz zwischen dem zu bestimmenden Druck des Raildrucksensors und dem vorgegebenen Druck des Raildrucksensors bestimmt. Die ermittelte Raildruckdifferenz zwischen dem vorgegebenen Raildruck und dem zu bestimmenden Raildruck wird vorzugsweise bis zu einer nächsten Kalibrierungsphase in der Steuerung des Kraftstoffeinspritzsystems hinterlegt. Es ist weiterhin besonders günstig, dass die ermittelte Raildruckdifferenz und somit die Drift des Raildrucksensors zur Kompensation der Drift und/oder zur Überwachung des Einspritzsystems verwendet werden kann, um in Zukunft die OBD-Anforderungen zu erfüllen.Preferably is the Ansteuerdauerdifferenz by the control of an actual injection quantity to a Target injection quantity determined, wherein the target injection quantity is constant is. The dependence between Rail pressure and difference of activation periods for constant injection quantities is preferably deposited as a map in a control of the injection system. From a stored in the control further Kenn field is preferred the difference between the pressure to be determined of the rail pressure sensor and the predetermined pressure of the rail pressure sensor determined. The determined Rail pressure difference between the given rail pressure and the determining rail pressure is preferably until a next calibration phase deposited in the control of the fuel injection system. It is still very cheap, that the determined rail pressure difference and thus the drift of the rail pressure sensor to compensate for the drift and / or to monitor the injection system can be used to meet the OBD requirements in the future.
Das eingangs genannte Problem wird auch gelöst durch eine Einrichtung, insbesondere ein Steuergerät einer Brennkraftmaschine, mit Mitteln zur Erkennung einer Fehlfunktion beziehungsweise einer Drift eines Raildrucksensors bei einem Kraftstoffeinspritzsystem mit zuschaltbarer Druckübersetzung, wobei eine Differenz zwischen einem vorgegebenen Druck des Raildrucksensors, auch als Soll-Raildruck bezeichnet, und einem zu bestimmenden Druck des Raildrucksensors (Ist-Raildruck) einer Drift des Raildrucksensors entspricht, und wobei beim Aktivieren und Deaktivieren der Druckübersetzung des Kraftstoffeinspritzsystems der zu bestimmende Raildruck als Funktion einer Differenz der Ansteuerdauern eines Injektors des Einspritzsystems zwischen druckübersetzter und nicht-druckübersetzter Einspritzung ermittelbar ist. Dabei wird die Ansteuerdauerdifferenz vorzugsweise durch Regelung der Einspritzmengen bestimmt. Somit sieht die erfindungsgemäße Lösung keine zusätzlichen Sensoren vor, um eine Drift oder Fehlfunktion des Raildrucksensors zu erkennen und zu überwachen.The above-mentioned problem is also solved by a device, in particular a control unit of an internal combustion engine, with means for detecting a malfunction or drift of a rail pressure sensor in a fuel injection system with switchable pressure ratio, wherein a difference between a predetermined pressure of the rail pressure sensor, as a target rail pressure designated, and a pressure to be determined of the rail pressure sensor (actual rail pressure) corresponds to a drift of the rail pressure sensor, and wherein when activating and deactivating the pressure ratio of the fuel injection system to be determined Rail pressure can be determined as a function of a difference in the activation periods of an injector of the injection system between pressure-translated and non-pressure-translated injection. In this case, the activation duration difference is preferably determined by regulating the injection quantities. Thus, the inventive solution provides no additional sensors to detect and monitor a drift or malfunction of the rail pressure sensor.
Das eingangs genannte Problem wird auch gelöst durch ein Computerprogramm mit Programmcode zur Durchführung aller Schritte des erfindungsgemäßen Verfahrens, wenn das Programm in einem Computer ausgeführt wird.The The problem mentioned at the outset is also solved by a computer program with program code for execution all steps of the method according to the invention, if the program is running in a computer.
Zeichnungendrawings
Nachfolgend wird ein Ausführungsbeispiel der vorliegenden Erfindung anhand der beiliegenden Zeichnungen näher erläutert. Dabei zeigen:following is an embodiment of Present invention explained in more detail with reference to the accompanying drawings. there demonstrate:
Der
Kraftstoffdruck im Rail
Wird
die Druckübersetzung
des Einspritzsystems aktiviert bzw. deaktiviert, so muss zur Gleichstellung
der geforderten Einspritzmenge die Ansteuerdauer des Injektors dem
jeweiligen Einspritzdruck angepasst werden. In
Betrachtet man in dieser Abbildung Linien konstanter Einspritzmenge, hier als Beispiele Q1 = 20 mm3; Q2 = 50 mm3; Q4 = 100 mm3; Q7 = 200 mm3 mit Druckübersetzung (mDV) und Q3 = 20 mm3; Q5 = 50 mm3; Q6 = 100 mm3; Q8 = 200 mm3 ohne Druckübersetzung (oDV) in Abhängigkeit von der Ansteuerdauer und dem Raildruck, ist zu erkennen, dass sich im unteren Raildruckbereich die Ansteuerdauer mit und ohne Druckübersetzung bei gleichen Einspritzmengen wesentlich unterscheidet. Die sich ergebende Differenz der Ansteuerdauer (dAD) ist im unteren Raildruckbereich eine eindeutige Funktion des Raildruckes und kann somit zur Raildruckbestimmung herangezogen werden.If one considers lines of constant injection quantity in this figure, here as examples Q1 = 20 mm 3 ; Q2 = 50 mm 3 ; Q4 = 100 mm 3 ; Q7 = 200 mm 3 with pressure ratio (mDV) and Q3 = 20 mm 3 ; Q5 = 50 mm 3 ; Q6 = 100 mm 3 ; Q8 = 200 mm 3 without pressure ratio (oDV) as a function of the control duration and the rail pressure, it can be seen that in the lower rail pressure range, the activation time with and without pressure ratio differs significantly for the same injection quantities. The resulting difference in the activation duration (dAD) is an unambiguous function of the rail pressure in the lower rail pressure range and can therefore be used to determine the rail pressure.
Die
Abhängigkeit
zwischen Raildruck p und der Differenz der Ansteuerdauern für konstante
Einspritzmengen q wird in der Steuerung
Die
erfindungsgemäße Erkennung
einer Drift des Raildrucksensors RDS wird während einer Kalibrierungsphase
in einem stationären
Betrieb der Brennkraftmaschine mit aktiver Druckübersetzung, z.B. im Leerlauf,
in Schritt
Eine entsprechende Vorgehensweise ergibt sich, wenn in einem Motorbetriebspunkt mit deaktivierter Druckübersetzung kurzfristig die Druckübersetzung aktiviert wird.A appropriate procedure results when in an engine operating point with deactivated pressure ratio short-term, the pressure translation is activated.
Das erfindungsgemäße Verfahren kann in allen Einspritzsystemen mit zuschaltbarer Druckverstärkung eingesetzt werden, deren Einspritzmengencharakteristik eine Abhängigkeit des Raildrucks von den Ansteuerdauerdifferenzen zwischen einer Einspritzung mit und ohne Druckübersetzung zeigt.The inventive method can be used in all injection systems with switchable pressure boosting whose injection quantity characteristic is a dependency the rail pressure of the driving time differences between an injection with and without pressure intensification shows.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007015876A DE102007015876A1 (en) | 2006-06-12 | 2007-04-02 | Drift and malfunctioning recognition method for rail pressure sensor, involves determining pressure of rail pressure sensor as function of control duration difference between pressure multiplication and non-pressure multiplication injection |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006027111.4 | 2006-06-12 | ||
DE102006027111 | 2006-06-12 | ||
DE102007015876A DE102007015876A1 (en) | 2006-06-12 | 2007-04-02 | Drift and malfunctioning recognition method for rail pressure sensor, involves determining pressure of rail pressure sensor as function of control duration difference between pressure multiplication and non-pressure multiplication injection |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007015876A1 true DE102007015876A1 (en) | 2007-12-13 |
Family
ID=38663913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE102007015876A Withdrawn DE102007015876A1 (en) | 2006-06-12 | 2007-04-02 | Drift and malfunctioning recognition method for rail pressure sensor, involves determining pressure of rail pressure sensor as function of control duration difference between pressure multiplication and non-pressure multiplication injection |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009141199A1 (en) * | 2008-05-23 | 2009-11-26 | Continental Automotive Gmbh | Method for identifying an error function and in particular a drift of a rail pressure sensor in a common rail injection system |
DE102008024956A1 (en) * | 2008-05-23 | 2009-11-26 | Continental Automotive Gmbh | Method for checking a pressure sensor of a fuel storage device |
WO2010121891A1 (en) * | 2009-04-23 | 2010-10-28 | Continental Automotive Gmbh | Diagnostic method for a fuel pressure sensor in the common rail of an internal combustion engine |
DE102009060058A1 (en) | 2009-11-03 | 2011-05-05 | Hydraulik-Ring Gmbh | Common-rail-diesel fuel injection system for combustion chamber of internal combustion engine of vehicle, has high-pressure pump controlling fuel to rail, where fuel is conveyed to pre-feed and high-pressure pumps and regulating valve |
DE102013021925B3 (en) * | 2013-12-20 | 2015-05-28 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for diagnosing a fuel pressure sensor during operation of an internal combustion engine |
CN114207265A (en) * | 2019-05-29 | 2022-03-18 | 罗尔斯·罗伊斯解决方案有限公司 | Method for monitoring mechanical damage of injector |
-
2007
- 2007-04-02 DE DE102007015876A patent/DE102007015876A1/en not_active Withdrawn
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8725391B2 (en) | 2008-05-23 | 2014-05-13 | Continental Automotive Gmbh | Method for identifying an error function and in particular a drift of a rail pressure sensor in a common rail injection system |
DE102008024956A1 (en) * | 2008-05-23 | 2009-11-26 | Continental Automotive Gmbh | Method for checking a pressure sensor of a fuel storage device |
DE102008024955B3 (en) * | 2008-05-23 | 2009-12-24 | Continental Automotive Gmbh | Method for detecting a malfunction of a rail pressure sensor in a common rail injection system |
CN102037227B (en) * | 2008-05-23 | 2014-10-29 | 大陆汽车有限公司 | Method for testing a pressure sensor of a fuel accumulator device |
WO2009141199A1 (en) * | 2008-05-23 | 2009-11-26 | Continental Automotive Gmbh | Method for identifying an error function and in particular a drift of a rail pressure sensor in a common rail injection system |
DE102008024956B4 (en) * | 2008-05-23 | 2011-02-10 | Continental Automotive Gmbh | Method for checking a pressure sensor of a fuel storage device |
CN102037229A (en) * | 2008-05-23 | 2011-04-27 | 欧陆汽车有限责任公司 | Method for identifying an error function and in particular a drift of a rail pressure sensor in a common rail injection system |
CN102037227A (en) * | 2008-05-23 | 2011-04-27 | 欧陆汽车有限责任公司 | Method for testing a pressure sensor of a fuel accumulator device |
US8806927B2 (en) | 2008-05-23 | 2014-08-19 | Continental Automotive Gmbh | Method for testing a pressure sensor of a fuel accumulator device |
CN102037229B (en) * | 2008-05-23 | 2013-11-06 | 大陆汽车有限公司 | Method for identifying an error function and in particular a drift of a rail pressure sensor in a common rail injection system |
DE102009018654B3 (en) * | 2009-04-23 | 2011-01-05 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
WO2010121891A1 (en) * | 2009-04-23 | 2010-10-28 | Continental Automotive Gmbh | Diagnostic method for a fuel pressure sensor in the common rail of an internal combustion engine |
US8950380B2 (en) | 2009-04-23 | 2015-02-10 | Continental Automotive Gmbh | Diagnostic method for a fuel pressure sensor in the common rail of an internal combustion engine |
DE102009060058A1 (en) | 2009-11-03 | 2011-05-05 | Hydraulik-Ring Gmbh | Common-rail-diesel fuel injection system for combustion chamber of internal combustion engine of vehicle, has high-pressure pump controlling fuel to rail, where fuel is conveyed to pre-feed and high-pressure pumps and regulating valve |
DE102013021925B3 (en) * | 2013-12-20 | 2015-05-28 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for diagnosing a fuel pressure sensor during operation of an internal combustion engine |
CN114207265A (en) * | 2019-05-29 | 2022-03-18 | 罗尔斯·罗伊斯解决方案有限公司 | Method for monitoring mechanical damage of injector |
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