EP1226355B1 - Verfahren und vorrichtung zur diagnose eines kraftstoffversorgungssystems - Google Patents
Verfahren und vorrichtung zur diagnose eines kraftstoffversorgungssystems Download PDFInfo
- Publication number
- EP1226355B1 EP1226355B1 EP00984821A EP00984821A EP1226355B1 EP 1226355 B1 EP1226355 B1 EP 1226355B1 EP 00984821 A EP00984821 A EP 00984821A EP 00984821 A EP00984821 A EP 00984821A EP 1226355 B1 EP1226355 B1 EP 1226355B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- supply system
- fuel supply
- frequency
- frequency spectrum
- 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.)
- Expired - Lifetime
Links
Images
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
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
-
- 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
-
- 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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
-
- 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
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the system
-
- 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
- F02D2041/224—Diagnosis of the fuel system
-
- 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
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
- F02D2041/286—Interface circuits comprising means for signal processing
- F02D2041/288—Interface circuits comprising means for signal processing for performing a transformation into the frequency domain, e.g. Fourier transformation
-
- 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
Definitions
- a fuel supply system of an internal combustion engine serves to fuel the engine from a Supply fuel tank.
- the fuel is here from a fuel pump from the fuel tank a pressure line to one of the internal combustion engine located fuel rail with injectors pumped.
- At the fuel rail or elsewhere in the fuel supply system is usually a Pressure sensor arranged.
- the pressure sensor is the Fuel pressure measured in the fuel supply system and forwarded to a scheme.
- the regulation holds the Pressure in the fuel supply system, in particular in the fuel rail, to a predetermined value.
- the Not required by the internal combustion engine amount of fuel is usually from the fuel rail over a Return line led back into the fuel tank.
- the fuel supply system may be referred to as a high pressure fuel delivery system, in particular as a common rail accumulator injection system for a direct injection Internal combustion engine, be formed in the one High-pressure fuel storage as fuel distributor is provided.
- a high pressure fuel delivery system in particular as a common rail accumulator injection system for a direct injection Internal combustion engine, be formed in the one High-pressure fuel storage as fuel distributor is provided.
- Fuel is removed from the fuel tank by a Electric fuel pump trained prefeed pump initially fed to a downstream high-pressure pump.
- the High-pressure pump then delivers the fuel with a very high pressure in the high-pressure fuel storage, from where from he about the trained as injectors Injectors in a combustion chamber of the internal combustion engine ' arrives.
- Pressure sensors arranged to control the fuel pressure in the High-pressure fuel storage for the regulation of To measure fuel pressure.
- Such Fuel supply system is, for example, from the DE 195 39 885 A1.
- the invention proposes starting from the method for diagnosing a Fuel supply system of the type mentioned suggest that when the amplitude of the Frequency component of the n-times the fundamental frequency of Fuel pump the deviation than from a fault of the Fuel pump is called, where n the number of cylinders of the fuel pump corresponds.
- the course of the fuel pressure in the Fuel supply system can, for example, on the basis of a physical model of the fuel supply system be determined. This will be the physical model State variables of the fuel supply system and / or supplied to the internal combustion engine, from which the course of the Fuel pressure is modeled.
- the fuel pressure in the Fuel supply system by means of a Pressure sensor measured.
- a pressure sensor is usually in the fuel supply system for Detecting the fuel pressure for a control of Fuel pressure in the fuel supply system already available and can also be used to hold the Fuel pressure curve according to the present invention be used.
- the frequency spectrum of the Fuel pressure curve formed is advantageously by means of a Fourier transformation of the Fuel pressure curve formed.
- a characteristic frequency spectrum of the Fuel pressure curve By the way of working the fuel pump in the fuel supply system it comes to a characteristic frequency spectrum of the Fuel pressure curve.
- a failure of the fuel supply system is the Frequency spectrum analyzed.
- the frequency spectrum of the Fuel pressure curve in a faultless Fuel supply system one for each Fuel supply system characteristic course. Change certain errors of the fuel supply system the characteristic course of the frequency spectrum in a certain way. As part of the analysis of Frequency spectrum is trying these changes of the to recognize characteristic course and from the To close changes on the causative error. To recognize the changes of the characteristic Gradually, the frequency spectrum is, for example, with Thresholds compared. An increase or a fall The amplitude of the frequency spectrum can by a Comparison with corresponding amplitude thresholds be recognized. Similarly, a move of characteristic frequency components towards higher or lower frequencies by comparing with corresponding frequency thresholds are detected. The Linking a certain change in the characteristic course of the frequency spectrum with the causing error can, for example, by means of a Expert system. With the invention Procedure is thus a differentiated diagnosis of a Fault of the fuel supply system possible.
- the course of the recorded Frequency spectrum is preferably with the course of the Frequency spectrum of a fault-free at this operating point working fuel supply system compared.
- a Fuel supply system in which an n-cylinder fuel pump with a certain fundamental frequency is arranged, with a decrease in the amplitude of the Frequency component of the n-times the fundamental frequency of Fuel pump the deviation than from a fault of the Fuel pump caused classified.
- a direct injection Internal combustion engine arise during operation of the Fuel pump pressure pulsations with n times Fundamental frequency of a work cycle.
- the invention is prior to classifying the deviations the nature of the error the relevance of the deviations assessed. Slight deviations of the characteristic Course of the frequency spectrum, which is the cause in Temperature fluctuations or tolerances of Fuel supply system may have so remain unconsidered. Only such deviations as be judged significantly in the diagnosis of the Fuel supply system considered.
- Invention is proposed that with an increase in the Amplitude of the frequency component of the 1-fold fundamental frequency the fuel pump's deviation than from a fault one of the pump cylinder of the fuel pump caused is classified.
- the fundamental frequency of Fuel pump In the characteristic course of the Frequency spectrum of a faultless working Fuel supply system is at the fundamental frequency of Fuel pump only a frequency share with a to recognize relatively low amplitude.
- the frequency component at the fundamental frequency of the fuel pump increases is This is a sure sign that a mistake is one of Pump cylinder of the fuel pump is present.
- the present invention relates to a method for Diagnosis of a fuel supply system of a Internal combustion engine.
- Method a differentiation of the error to individual Components of the fuel supply system.
- an error of Fuel pump of the fuel supply system be diagnosed.
- the fuel supply system in which the inventive method is used is preferably as a common rail accumulator injection system a direct-injection internal combustion engine is formed.
- Common rail accumulator injection systems become fuel from a fuel tank by an as Electric fuel pump trained prefeed pump initially fed to a downstream high-pressure pump.
- the High-pressure pump promotes the fuel with a very high pressure in a high-pressure fuel storage, from where from he injectors into a combustion chamber of the Internal combustion engine passes.
- the of the internal combustion engine Unnecessary fuel quantity usually flows through the high-pressure fuel storage via a return line back into the fuel tank.
- High-pressure fuel storage is a high-pressure sensor arranged, the fuel pressure in the High-pressure fuel storage measures and one High pressure control feeds the fuel pressure in the High-pressure fuel storage to a predetermined value regulates.
- a function block 1 in Figure 1 is the inventive method started.
- the recording of the course of the fuel pressure can be continuous, at regular times or too selected times.
- a functional block 3 the frequency spectrum of the measured fuel pressure curve formed.
- the Frequency spectrum is, for example, by means of a Fourier transform formed. Subsequently, the Frequency spectrum analyzed. This is done in one Function block 4, first, the frequency component of n times Basic frequency of the fuel pump with a speed-dependent amplitude threshold compared. Of Furthermore, the frequency component of the fundamental frequency of Fuel pump with another speed-dependent Amplitude threshold compared.
- a diagnosis of a common rail storage injection system performed in which a 3-cylinder high-pressure pump is working.
- the pressure pulsations are in the Frequency spectrum of the fuel pressure curve at 3 times Basic frequency of the high pressure pump with a Recognize frequency component with a relatively large amplitude.
- An error in the high-pressure pump causes a drop the amplitude of this frequency component being detected.
- an error causes one of the pump cylinders of the High pressure pump in addition to an increase in Amplitude of the frequency component at the fundamental frequency of High pressure feed pump.
- the decrease or increase in the amplitudes of these Frequency components can be determined by amplitude thresholds be determined, which fell below or exceeded become. For this purpose, it is checked in a query block 5, if the Course of the frequency spectrum at 1-fold and 3-fold Basic frequency of the high-pressure pump above or is below a predetermined amplitude threshold. If No, the high-pressure pump is OK (Function block 6) and the inventive method returns back to the function block 1.
- the dashed line between the function block 6 and the function block 1 should clarify that the method according to the present Embodiment not continuous, but cyclic or triggered.
- Function block 7 If the frequency spectrum recorded Fuel pressure curve has deviations in the 1-fold or at the 3-fold fundamental frequency of High-pressure pump the predetermined amplitude thresholds exceed or fall short, is the High pressure pump defective (function block 7). In one Function block 8 is then set a fault memory.
- FIG. 2 shows the measured course of the fuel pressure in the high-pressure fuel storage over a period of 0.5 seconds.
- the fuel pressure was at a speed of the internal combustion engine of 2080 U / min measured.
- the fundamental frequency of the working cycle of the 3-cylinder high-pressure pump of the common rail storage injection system is 17.3 Hz.
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
- Aufnahme des Verlaufs des Kraftstoffdrucks in dem Kraftstoffversorgungssytem;
- Bilden des Frequenzsprektrums des Kraftstoffdruckverlaufs;
- Vergleich des Verlaufs des aufgenommenen Frequenzsprektrums mit dem Verlauf des Frequenzspektrums eines fehlerfrei arbeitenden Kraftstoffversorgungssystems; und
- falls Abweichungen zwischen den Verläufen der Frequenzspektren vorliegen, Klassifizieren der Abweichungen nach der Art der Fehler in dem Kraftstoffversorgungssystem, durch die sie hervorgerufen werden. Die Erfindung betrifft außerdem eine Vorrichtung zur Diagnose eines Kraftstoffversorgungssystems einer Brennkraftmaschine, wobei in dem Kraftstoffversorgungssystems eine n-Zylinder-Kraftstoffpumpe mit einer bestimmten Grundfrequenz angeordnet ist, mit
- Mitteln zur Aufnahme des Verlaufs des Kraftstoffdrucks in dem Kraftstoffversorgungssytem;
- Mitteln zum Bilden des Frequenzsprektrums des Kraftstoffdruckverlaufs;
- Mitteln zum Vergleich des Verlaufs des aufgenommenen Frequenzsprektrums mit dem Verlauf des Frequenzspektrums eines fehlerfrei arbeitenden Kraftstoffversorgungssystems; und
- falls Abweichungen zwischen den Verläufen der Frequenzspektren vorliegen, Mitteln zum Klassifizieren der Abweichungen nach der Art der Fehler in dem Kraftstoffversorgungssystem, durch die sie hervorgerufen werden.
- Vergleich des Verlaufs des aufgenommenen Frequenzspektrums mit dem Verlauf des Frequenzspektrums eines fehlerfrei arbeitenden Kraftstoffversorgungssystems; und
- falls Abweichungen zwischen den Verläufen der Frequenzspektren vorliegen, Klassifizieren der Abweichungen nach der Art der Fehler in dem Kraftstoffversorgungssystem, durch die sie hervorgerufen werden.
- Figur 1
- ein Ablaufdiagramm eines erfindungsgemäßen Verfahrens gemäß einer bevorzugten Ausführungsform;
- Figur 2
- den Verlauf des aufgenommenen Kraftstoffdrucks;
- Figur 3
- den Verlauf des Frequenzspektrums eines fehlerfrei arbeitenden Kraftstoffversorgungssystems; und
- Figur 4
- den Verlauf des Frequenzspektrums eines Kraftstoffversorgungssystems, in dem eine defekte Kraftstoffpumpe arbeitet.
Claims (8)
- Verfahren zur Diagnose eines Kraftstoffversorgungssystems einer Brennkraftmaschine, wobei in dem Kraftstoffversorgungssystems eine n-Zylinder-Kraftstoffpumpe mit einer bestimmten Grundfrequenz angeordnet ist, umfassend die nachfolgenden Schritte:Aufnahme des Verlaufs des Kraftstoffdrucks in dem Kraftstoffversorgungssytem (2);Bilden des Frequenzsprektrums des Kraftstoffdruckverlaufs (3);Vergleich des Verlaufs des aufgenommenen Frequenzsprektrums mit dem Verlauf des Frequenzspektrums eines fehlerfrei arbeitenden Kraftstoffversorgungssystems; undfalls Abweichungen zwischen den Verläufen der Frequenzspektren vorliegen, Klassifizieren der Abweichungen nach der Art der Fehler in dem Kraftstoffversorgungssystem, durch die sie hervorgerufen werden,
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Kraftstoffdruck in dem Kraftstoffversorgungssytem mittels eines Drucksensors gemessen wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass vor dem Klassifizieren der Abweichungen nach der Art der Fehler die Erheblichkeit der Abweichungen beurteilt wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Frequenzsprektrum des Kraftstoffdruckverlaufs mittels einer Fouriertransformation des Kraftstoffdruckverlaufs gebildet wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass bei einer Zunahme der Amplitude des Frequenzanteils der 1-fachen Grundfrequenz der Kraftstoffpumpe die Abweichung als von einem Fehler eines der Pumpenzylinder der Kraftstoffpumpe hervorgerufen klassifiziert wird (4).
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Absinken oder die Zunahme der Amplitude des Frequenzanteils anhand von Amplitudenschwellen ermittelt wird, die unterschritten bzw. überschritten werden (5).
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass vor der Analyse des Frequenzsprektrums der Mittelwert des aufgenommenen Kraftstoffdrucks subtrahiert wird.
- Vorrichtung zur Diagnose eines Kraftstoffversorgungssystems einer Brennkraftmaschine, wobei in dem Kraftstoffversorgungssystems eine n-Zylinder-Kraftstoffpumpe mit einer bestimmten Grundfrequenz angeordnet ist, mitMitteln zur Aufnahme des Verlaufs des Kraftstoffdrucks in dem Kraftstoffversorgungssytem (2);Mitteln zum Bilden des Frequenzsprektrums des Kraftstoffdruckverlaufs (3);Mitteln zum Vergleich des Verlaufs des aufgenommenen Frequenzsprektrums mit dem Verlauf des Frequenzspektrums eines fehlerfrei arbeitenden Kraftstoffversorgungssystems; und falls Abweichungen zwischen den Verläufen der Frequenzspektren vorliegen, Mitteln zum Klassifizieren der Abweichungen nach der Art der Fehler in dem Kraftstoffversorgungssystem, durch die sie hervorgerufen werden,
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19950222 | 1999-10-19 | ||
DE19950222A DE19950222A1 (de) | 1999-10-19 | 1999-10-19 | Verfahren und Vorrichtung zur Diagnose eines Kraftstoffversorgungssystems |
PCT/DE2000/003531 WO2001029411A1 (de) | 1999-10-19 | 2000-10-07 | Verfahren und vorrichtung zur diagnose eines kraftstoffversorgungssystems |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1226355A1 EP1226355A1 (de) | 2002-07-31 |
EP1226355B1 true EP1226355B1 (de) | 2005-08-31 |
Family
ID=7926089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00984821A Expired - Lifetime EP1226355B1 (de) | 1999-10-19 | 2000-10-07 | Verfahren und vorrichtung zur diagnose eines kraftstoffversorgungssystems |
Country Status (6)
Country | Link |
---|---|
US (1) | US6901791B1 (de) |
EP (1) | EP1226355B1 (de) |
JP (1) | JP2003512566A (de) |
KR (1) | KR100668576B1 (de) |
DE (2) | DE19950222A1 (de) |
WO (1) | WO2001029411A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009127510A1 (de) * | 2008-04-15 | 2009-10-22 | Robert Bosch Gmbh | Verfahren bzw. vorrichtung zur ermittlung des fördervolumens einer einspritzpumpe |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8172546B2 (en) * | 1998-11-23 | 2012-05-08 | Entegris, Inc. | System and method for correcting for pressure variations using a motor |
US7029238B1 (en) * | 1998-11-23 | 2006-04-18 | Mykrolis Corporation | Pump controller for precision pumping apparatus |
JP2003532020A (ja) * | 2000-05-03 | 2003-10-28 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 内燃機関の燃料調量システムの監視方法および装置 |
US7013223B1 (en) * | 2002-09-25 | 2006-03-14 | The Board Of Trustees Of The University Of Illinois | Method and apparatus for analyzing performance of a hydraulic pump |
DE10259797A1 (de) * | 2002-12-19 | 2004-07-15 | Siemens Ag | Vorrichtung und Verfahren zum Erkennen von Fehlern in einem Kraftstoffeinspritzsystem |
DE10302806B4 (de) * | 2003-01-24 | 2004-12-09 | Siemens Ag | Verfahren zur Berechnung von Druckschwankungen in einem Kraftstoffversorgungssystem einer mit Kraftstoff-Direkteinspritzung arbeitenden Brennkraftmaschine und zur Steuerung derer Einspritzventile |
DE10305372B4 (de) | 2003-02-10 | 2009-01-08 | Continental Automotive Gmbh | Vorrichtung und Verfahren zum Erkennen von Fehlern in einem einen Kraftstoffdruckdämpfer aufweisenden Kraftstoffeinspritzsystem |
DE10347517B3 (de) | 2003-10-13 | 2005-06-02 | Siemens Ag | Verfahren und Vorrichtung zum Überwachen eines Impulsladeventils einer Brennkraftmaschine |
JP5079516B2 (ja) * | 2004-11-23 | 2012-11-21 | インテグリス・インコーポレーテッド | 可変定位置ディスペンスシステムのためのシステムおよび方法 |
DE102004062029A1 (de) * | 2004-12-23 | 2006-07-13 | Robert Bosch Gmbh | Überwachung einer Mehrkolbenpumpe |
JP4866682B2 (ja) * | 2005-09-01 | 2012-02-01 | 株式会社フジキン | 圧力センサを保有する流量制御装置を用いた流体供給系の異常検出方法 |
US8753097B2 (en) | 2005-11-21 | 2014-06-17 | Entegris, Inc. | Method and system for high viscosity pump |
US8087429B2 (en) * | 2005-11-21 | 2012-01-03 | Entegris, Inc. | System and method for a pump with reduced form factor |
US7878765B2 (en) | 2005-12-02 | 2011-02-01 | Entegris, Inc. | System and method for monitoring operation of a pump |
WO2007067342A2 (en) * | 2005-12-02 | 2007-06-14 | Entegris, Inc. | System and method for valve sequencing in a pump |
CN102705209B (zh) | 2005-12-02 | 2015-09-30 | 恩特格里公司 | 用于泵中压力补偿的系统和方法 |
US7850431B2 (en) * | 2005-12-02 | 2010-12-14 | Entegris, Inc. | System and method for control of fluid pressure |
US7940664B2 (en) * | 2005-12-02 | 2011-05-10 | Entegris, Inc. | I/O systems, methods and devices for interfacing a pump controller |
US7547049B2 (en) * | 2005-12-02 | 2009-06-16 | Entegris, Inc. | O-ring-less low profile fittings and fitting assemblies |
US8083498B2 (en) * | 2005-12-02 | 2011-12-27 | Entegris, Inc. | System and method for position control of a mechanical piston in a pump |
CN101360678B (zh) * | 2005-12-05 | 2013-01-02 | 恩特格里公司 | 用于泵的误差容积系统和方法 |
TWI402423B (zh) | 2006-02-28 | 2013-07-21 | Entegris Inc | 用於一幫浦操作之系統及方法 |
US7494265B2 (en) * | 2006-03-01 | 2009-02-24 | Entegris, Inc. | System and method for controlled mixing of fluids via temperature |
US7684446B2 (en) * | 2006-03-01 | 2010-03-23 | Entegris, Inc. | System and method for multiplexing setpoints |
EP1870586B1 (de) * | 2006-06-16 | 2018-12-05 | Delphi International Operations Luxembourg S.à r.l. | Vorrichtung zur Erkennung und Identifizierung von Komponentendefekten in einem Brennstoffsystem |
US20080006089A1 (en) * | 2006-07-07 | 2008-01-10 | Sarmad Adnan | Pump integrity monitoring |
US7643945B2 (en) * | 2006-12-28 | 2010-01-05 | Schlumberger Technology Corporation | Technique for acoustic data analysis |
US7710121B2 (en) * | 2007-02-28 | 2010-05-04 | Federal Mogul Corporation | Electrical connector integrity tester |
DE102007030713A1 (de) * | 2007-07-02 | 2009-01-08 | Robert Bosch Gmbh | Verfahren zur Plausibilisierung des Ausgangssignals eines Raildrucksensors |
JP2009191778A (ja) * | 2008-02-15 | 2009-08-27 | Hitachi Ltd | 高圧燃料システムの制御診断装置 |
US20100101785A1 (en) | 2008-10-28 | 2010-04-29 | Evgeny Khvoshchev | Hydraulic System and Method of Monitoring |
DE102010005049B4 (de) | 2009-02-05 | 2021-12-09 | Robert Bosch Gmbh | Verfahren zum Erkennen von Fehlern in hydraulischen Verdrängermaschinen |
US8494706B2 (en) | 2011-08-19 | 2013-07-23 | Federal-Mogul Corporation | Electric fuel pump tester and method |
DE102011082459B4 (de) * | 2011-09-09 | 2013-11-07 | Continental Automotive Gmbh | Verfahren zur Analyse des Wirkungsgrades der Hochdruckpumpe eines Kraftstoffeinspritzsystems |
SE536319C2 (sv) * | 2011-12-13 | 2013-08-20 | Scania Cv Ab | Anordning och förfarande för feldetektering i ett bränsletillförselsystem hos ett motorfordon |
EP2791496B1 (de) * | 2011-12-13 | 2017-09-20 | Scania CV AB | Vorrichtung und verfahren zur fehlererkennung in einem kraftstoffversorgungssystem eines kraftfahrzeugs |
US9032788B2 (en) | 2012-04-13 | 2015-05-19 | Caterpillar Inc. | Common rail system fault diagnostic using digital resonating filter |
US9797395B2 (en) * | 2015-09-17 | 2017-10-24 | Schlumberger Technology Corporation | Apparatus and methods for identifying defective pumps |
JP6281580B2 (ja) * | 2016-01-27 | 2018-02-21 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
DE102017217113A1 (de) * | 2017-09-26 | 2019-03-28 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Verbrennungsmotors und elektronisches Steuergerät für einen Verbrennungsmotor |
GB2569579A (en) * | 2017-12-20 | 2019-06-26 | Delphi Tech Ip Ltd | Method of determining rail pressure in a common rail fuel system |
DE102018210470A1 (de) * | 2018-06-27 | 2020-01-02 | Robert Bosch Gmbh | Verfahren zur Schadensfrüherkennung, sowie Programm und Steuergerät zum Ausführen des Verfahrens |
US20200125123A1 (en) * | 2018-10-18 | 2020-04-23 | Parker-Hannifin Corporation | Hydraulic pump health monitoring |
DE102018127686A1 (de) * | 2018-11-06 | 2020-05-07 | Mtu Friedrichshafen Gmbh | Verfahren zur Überwachung einer Hochdruckpumpe einer ein Common-Rail-System aufweisenden Brennkraftmaschine, Motorsteuergerät und Brennkraftmaschine |
KR20200144246A (ko) * | 2019-06-18 | 2020-12-29 | 현대자동차주식회사 | 연료분사량 보정방법 및 시스템 |
DE102020207332A1 (de) * | 2020-06-12 | 2021-12-16 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren und System zum Erkennen einer Einschränkung einer Brennstoffversorgung eines Common-Rail-Systems |
CN113062811B (zh) * | 2021-03-08 | 2022-02-22 | 哈尔滨工程大学 | 一种根据喷油器入口压力信号的频谱特征对喷油过程关键时间特征识别的方法 |
CN115387903B (zh) * | 2022-05-20 | 2024-04-19 | 潍柴动力股份有限公司 | 柴油机的故障检测方法、装置、动力装置及介质 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5445019A (en) * | 1993-04-19 | 1995-08-29 | Ford Motor Company | Internal combustion engine with on-board diagnostic system for detecting impaired fuel injectors |
US5499538A (en) | 1994-03-03 | 1996-03-19 | Ford Motor Company | On-board detection of fuel pump malfunction |
DE19539885A1 (de) * | 1995-05-26 | 1996-11-28 | Bosch Gmbh Robert | Kraftstoffversorgungsanlage und Verfahren zum Betreiben einer Brennkraftmaschine |
DE19520300A1 (de) * | 1995-06-02 | 1996-12-05 | Bosch Gmbh Robert | Einrichtung zur Erkennung eines Lecks in einem Kraftstoffversorgungssystem |
DE19548279B4 (de) * | 1995-09-28 | 2006-12-14 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems |
US6053147A (en) * | 1998-03-02 | 2000-04-25 | Cummins Engine Company, Inc. | Apparatus and method for diagnosing erratic pressure sensor operation in a fuel system of an internal combustion engine |
-
1999
- 1999-10-19 DE DE19950222A patent/DE19950222A1/de not_active Withdrawn
-
2000
- 2000-10-07 WO PCT/DE2000/003531 patent/WO2001029411A1/de active IP Right Grant
- 2000-10-07 JP JP2001531975A patent/JP2003512566A/ja active Pending
- 2000-10-07 DE DE50011078T patent/DE50011078D1/de not_active Expired - Lifetime
- 2000-10-07 KR KR1020027004936A patent/KR100668576B1/ko not_active IP Right Cessation
- 2000-10-07 US US10/110,979 patent/US6901791B1/en not_active Expired - Fee Related
- 2000-10-07 EP EP00984821A patent/EP1226355B1/de not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009127510A1 (de) * | 2008-04-15 | 2009-10-22 | Robert Bosch Gmbh | Verfahren bzw. vorrichtung zur ermittlung des fördervolumens einer einspritzpumpe |
DE102008001182A1 (de) | 2008-04-15 | 2009-10-22 | Robert Bosch Gmbh | Verfahren bzw. Vorrichtung zur Ermittlung des Fördervolumens einer Einspritzpumpe |
CN102007288A (zh) * | 2008-04-15 | 2011-04-06 | 罗伯特·博世有限公司 | 用于求得喷射泵的供给量的方法以及装置 |
CN102007288B (zh) * | 2008-04-15 | 2014-01-08 | 罗伯特·博世有限公司 | 用于求得喷射泵的供给量的方法以及装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20020038957A (ko) | 2002-05-24 |
JP2003512566A (ja) | 2003-04-02 |
EP1226355A1 (de) | 2002-07-31 |
KR100668576B1 (ko) | 2007-01-18 |
DE19950222A1 (de) | 2001-04-26 |
WO2001029411A1 (de) | 2001-04-26 |
US6901791B1 (en) | 2005-06-07 |
DE50011078D1 (de) | 2005-10-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1226355B1 (de) | Verfahren und vorrichtung zur diagnose eines kraftstoffversorgungssystems | |
DE102009056790B4 (de) | Diagnostiksystem und -Verfahren für eine Kraftstoffeinspritzeinrichtung für einen Motor mit Direkteinspritzung | |
DE102005043017B4 (de) | Common-Rail-Kraftstoffeinspritzsystem | |
EP0748930B1 (de) | Verfahren zum Erkennen von Betriebsstörungen in einer Kraftstoffeinspritzanlage einer Brennkraftmaschine | |
EP1856394B1 (de) | Verfahren und vorrichtung zur überwachung einer einspritzvorrichtung einer brennkraftmaschine | |
DE102010013602B4 (de) | Verfahren zur Erkennung eines Fehlverhaltens eines elektronisch geregelten Kraftstoffeinspritzsystems eines Verbrennungsmotors | |
DE102012111162B4 (de) | Kraftstoffdrucksensor-Diagnosevorrichtung | |
DE102007028900A1 (de) | Verfahren und Vorrichtung zur Diagnose eines mit einer Kraftstoffverteilerleiste in Verbindung stehenden Einspritzventils einer Brennkraftmaschine | |
DE102012218176A1 (de) | Verfahren zum Betreiben eines Kraftstoffeinspritzsystems | |
WO2017021183A1 (de) | Verfahren zur erkennung fehlerhafter komponenten eines kraftstoffeinspritzsystems | |
DE102011082459B4 (de) | Verfahren zur Analyse des Wirkungsgrades der Hochdruckpumpe eines Kraftstoffeinspritzsystems | |
DE69704681T2 (de) | Verfahren und Einrichtung zur Feststellung von Störungen der Einspritzdüse eines Hochdruck-Kraftstoffeinspritzsystems einer Brennkraftmaschine | |
EP3814619B1 (de) | Verfahren zum angleichen eines einspritzverhaltens von injektoren eines verbrennungsmotors, motorsteuergerät und verbrennungsmotor | |
DE102014007963A1 (de) | Verfahren zum Betreiben einer Brennkraftmaschine und Motorsteuergerät | |
DE102011052137B4 (de) | Detektionsabweichungs-Bestimmungsvorrichtung für einen Kraftstoffdrucksensor | |
DE69822090T2 (de) | Steuerungsverfahren für luftverdichtende Brennkraftmaschinen | |
DE102019212214B3 (de) | Verfahren zur Diagnose einer Injektorleckage bei einer Brennkraftmaschine, Brennkraftmaschine sowie Computerprogrammprodukt | |
WO2016128126A1 (de) | Kraftstoffversorgungsanlage einer brennkraftmaschine | |
DE102008032741B3 (de) | Verfahren und Diagnosegerät zum Erkennen einer Fehlfunktion an einer Einspritzanlage | |
DE102019212215B3 (de) | Verfahren zur Diagnose einer Injektorenfunktionsfähigkeit bei einer Brennkraftmaschine mit einer Mehrzahl von Injektoren, Brennkraftmaschine zur Durchführung eines solchen Verfahrens und Computerprogrammprodukt | |
DE102008030870A1 (de) | Diagnose bei Brennkraftmaschinen | |
WO2020152228A1 (de) | Verfahren und auswerteeinheit zur erkennung einer fehlfunktion eines kraftstoffsystems eines verbrennungsmotors | |
DE102022122171B4 (de) | Verfahren zum Erkennen einer Leckage eines Kraftstoffinjektors während eines Motorbetriebs | |
DE102006038547A1 (de) | Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine | |
DE102022209727B4 (de) | Verfahren zum Betreiben eines Kraftstoff-Einspritzsystems eines Verbrennungsmotors |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20020521 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR |
|
REF | Corresponds to: |
Ref document number: 50011078 Country of ref document: DE Date of ref document: 20051006 Kind code of ref document: P |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20060601 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20091110 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101102 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20110630 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20131217 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50011078 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150501 |