DE10305012A1 - Motor vehicle fuel injection system monitoring method in which mass flow meters are inserted in various fuel lines to detect which, if any, component is faulty - Google Patents
Motor vehicle fuel injection system monitoring method in which mass flow meters are inserted in various fuel lines to detect which, if any, component is faulty Download PDFInfo
- Publication number
- DE10305012A1 DE10305012A1 DE2003105012 DE10305012A DE10305012A1 DE 10305012 A1 DE10305012 A1 DE 10305012A1 DE 2003105012 DE2003105012 DE 2003105012 DE 10305012 A DE10305012 A DE 10305012A DE 10305012 A1 DE10305012 A1 DE 10305012A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- control device
- pressure
- fuel injection
- control valve
- 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.)
- Withdrawn
Links
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
- F02D41/30—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
- F02D41/22—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
- 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
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
- F02D2041/225—Leakage detection
-
- 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
- F02D2041/228—Warning displays
-
- 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
- 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
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
Abstract
Description
Die Erfindung geht aus von einer Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine nach der Gattung des Anspruchs 1.The invention is based on one Fuel injector for an internal combustion engine according to the preamble of claim 1.
Eine solche Kraftstoffeinspritzeinrichtung ist aus der Literatur, beispielsweise Dieselmotor-Management, Verlag Vieweg, 2. Auflage 1998, Seiten 280 bis 284, bekannt. Diese Kraftstoffeinspritzeinrichtung weist eine Hochdruckpumpe auf, durch die Kraftstoff in einen Speicher gefördert wird. Mit dem Speicher ist wenigstens ein an einem Zylinder der Brennkraftmaschine angeordneter Injektor verbunden, mittels dem Kraftstoff am Zylinder eingespritzt wird. Es ist ausserdem ein Druckregelventil vorgesehen, durch das der Druck im Speicher begrenzt wird und das mit einer elektronischen Steuereinrichtung verbunden ist. Das Druckregelventil wird durch die Steuereinrichtung derart angesteuert, dass der im Speicher herrschende Druck auf einen bestimmten Wert begrenzt wird. Das Druckregelventil ist mit einem Kraftstoffrücklauf verbunden, über den durch das Druckregelventil aus dem Speicher abgesteuerter Kraftstoff abfliessen kann. Die Hochdruckpumpe weist einen Zulauf auf ihrer Saugseite auf, der mit einer Förderpumpe verbunden ist. Der wenigstens eine Injektor weist ein Steuerventil auf, das von der Steuereinrichtung angesteuert wird und vom Injektor führt ebenfalls ein Kraftstoffrücklauf ab. Bei einer Fehlfunktion einer der Komponenten Hochdruckpumpe, Injektor und Druckregelventil ist kein ordnungsgemäßer Betrieb der Brennkraftmaschine möglich, so dass unter Umständen eine hohe Schadstoffemission oder eine Beschädigung von Teilen der Brennkraftmaschine oder der Kraftstoffeinspritzeinrichtung auftreten kann. Bei der bekannten Kraftstoffeinspritzeinrichtung kann eine Fehlfunktion einer Komponente unter Umständen nicht oder erst zu spät erkannt werden.Such a fuel injector is from the literature, for example diesel engine management, publisher Vieweg, 2nd edition 1998, pages 280 to 284, known. This fuel injector has a high pressure pump through which fuel is stored promoted becomes. With the memory is at least one on a cylinder of the internal combustion engine arranged injector connected by means of the fuel on the cylinder is injected. A pressure control valve is also provided, which limits the pressure in the accumulator and that with a electronic control device is connected. The pressure control valve is controlled by the control device such that the in the memory prevailing pressure is limited to a certain value. The pressure control valve is with a fuel return connected, about the fuel discharged from the accumulator by the pressure regulating valve can drain off. The high pressure pump has an inlet on it Suction side on that with a feed pump connected is. The at least one injector has a control valve on, which is controlled by the control device and by the injector leads too a fuel return. In the event of a malfunction of one of the components high pressure pump, injector and pressure control valve is not proper operation of the internal combustion engine possible, so possibly a high pollutant emission or damage to parts of the internal combustion engine or the fuel injector may occur. In the Known fuel injector may malfunction of a component not or too late be recognized.
Die erfindungsgemäße Kraftstoffeinspritzeinrichtung mit den Merkmalen gemäß Anspruch 1 hat demgegenüber den Vorteil, dass durch die Steuereinrichtung mittels der Signale der wenigstens einen Massendurchflussmesseinrichtung eine Fehlfunktion einer der Komponenten erkannt werden kann. Unter Berücksichtigung weiterer Parameter kann dabei aus der Charakteristik der Signale der Massendurchflussmesseinrichtung auch erkannt werden, bei welcher der Komponenten eine Fehlfunktion vorliegt. Es ist somit eine Onboard-Diagnose der Kraftstoffeinspritzeinrichtung ermöglicht.The fuel injection device according to the invention with the features according to claim 1 has in contrast the advantage that the control device by means of the signals the at least one mass flow measuring device malfunctions of the components can be recognized. Taking other parameters into account can from the characteristics of the signals of the mass flow measuring device also detect which of the components is malfunctioning is present. It is therefore an onboard diagnosis of the fuel injection device allows.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Kraftstoffeinspritzeinrichtung angegeben. Die Ausbildung gemäß den Ansprüchen 2 bis 4 ermöglicht eine zuverlässige Ermittlung bei welcher der Komponenten eine Fehlfunktion vorliegt.In the dependent claims are advantageous refinements and developments of the fuel injection device according to the invention specified. The training according to claims 2 to 4 enables a reliable Determine which of the components is malfunctioning.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die Figur zeigt eine Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine in schematischer Darstellung.An embodiment of the invention is shown in the drawing and in the description below explained in more detail. The Figure shows a fuel injection device for an internal combustion engine in a schematic representation.
Beschreibung des Ausführungsbeispielsdescription of the embodiment
In der Figur ist eine Kraftstoffeinspritzeinrichtung
für eine
Brennkraftmaschine eines Kraftfahrzeugs dargestellt. Die Brennkraftmaschine
ist vorzugsweise eine selbstzündende
Brennkraftmaschine und weist mehrere Zylinder auf. Die Kraftstoffeinspritzeinrichtung
weist eine Förderpumpe
Am Speicher
Zwischen der Förderpumpe
Der Kraftstoffrücklauf
Die Massendurchflussmesseinrichtung
Durch die Steuereinrichtung
Durch die Steuereinrichtung
Wenn durch die Steuereinrichtung
Die Massendurchflussmesseinrichtung
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003105012 DE10305012A1 (en) | 2003-02-07 | 2003-02-07 | Motor vehicle fuel injection system monitoring method in which mass flow meters are inserted in various fuel lines to detect which, if any, component is faulty |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003105012 DE10305012A1 (en) | 2003-02-07 | 2003-02-07 | Motor vehicle fuel injection system monitoring method in which mass flow meters are inserted in various fuel lines to detect which, if any, component is faulty |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10305012A1 true DE10305012A1 (en) | 2004-08-19 |
Family
ID=32730856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003105012 Withdrawn DE10305012A1 (en) | 2003-02-07 | 2003-02-07 | Motor vehicle fuel injection system monitoring method in which mass flow meters are inserted in various fuel lines to detect which, if any, component is faulty |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10305012A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1903210A1 (en) * | 2005-07-13 | 2008-03-26 | Toyota Jidosha Kabushiki Kaisha | Diagnosis device for electromagnetic relief valve in fuel delivery device |
-
2003
- 2003-02-07 DE DE2003105012 patent/DE10305012A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1903210A1 (en) * | 2005-07-13 | 2008-03-26 | Toyota Jidosha Kabushiki Kaisha | Diagnosis device for electromagnetic relief valve in fuel delivery device |
EP1903210A4 (en) * | 2005-07-13 | 2015-04-15 | Toyota Motor Co Ltd | Diagnosis device for electromagnetic relief valve in fuel delivery device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |