DE102007052096A1 - Method of identifying a fuel grade - Google Patents
Method of identifying a fuel grade Download PDFInfo
- Publication number
- DE102007052096A1 DE102007052096A1 DE102007052096A DE102007052096A DE102007052096A1 DE 102007052096 A1 DE102007052096 A1 DE 102007052096A1 DE 102007052096 A DE102007052096 A DE 102007052096A DE 102007052096 A DE102007052096 A DE 102007052096A DE 102007052096 A1 DE102007052096 A1 DE 102007052096A1
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- Prior art keywords
- pressure
- fuel
- density
- leak
- compressibility
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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
- F02D41/30—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
- F02D19/0628—Determining the fuel pressure, temperature or flow, the fuel tank fill level or a valve position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
- F02D19/0634—Determining a density, viscosity, composition or concentration
- F02D19/0636—Determining a density, viscosity, composition or concentration by estimation, i.e. without using direct measurements of a corresponding sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0673—Valves; Pressure or flow regulators; Mixers
- F02D19/0678—Pressure or flow regulators therefor; Fuel metering valves therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0684—High pressure fuel injection systems; Details on pumps, rails or the arrangement of valves in the fuel supply and return systems
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- 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
- F02D2200/0606—Fuel temperature
-
- 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
- F02D2200/0611—Fuel type, fuel composition or fuel quality
-
- 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
- F02D2200/0611—Fuel type, fuel composition or fuel quality
- F02D2200/0612—Fuel type, fuel composition or fuel quality determined by estimation
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fuel-Injection Apparatus (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Es wird ein Verfahren zum Erkennen des Typs eines Kraftstoffs, der über eine Einspritzanlage, insbesondere eine Common-Rail-Einspritzanlage, in einen Brennraum einer Brennkraftmaschine eingespritzt wird, vorgeschlagen. Dabei weist die Einspritzanlage ein hydraulisches System mit einem Hochdruckbereich, der mehrere Injektoren zum Einspritzen des Kraftstoffs versorgt, und einem Volumenstromregelventil zum Einstellen des dem Hochdruckbereich über eine Hochdruckpumpe zugeführten Kraftstoffstroms auf. Der Druck im Hochdruckbereich wird über die Zeit gemessen und in Phasen, während derer die Hochdruckpumpe keinen Kraftstoff fördert, wird die Bilanzgleichung des hydraulischen Systems $F1 verwendet und über einen betrachteten Zeitraum integriert, wobei p der Druck im Hochdruckbereich, E der Kompressibilitätsmodul des Kraftstoffs, V das Volumen des Hochdruckbereichs, QINJ der eingespritzte Kraftstoffvolumenstrom, QCNT_LEAK der Dauerleckagevolumenstrom und QSWI_LEAK der Schaltleckagevolumenstrom der Injektoren sind. Aus für jeden Kraftstofftyp bekannten Kennkurven des Kompressibilitätsmoduls und der Dichte in Abhängigkeit vom Druck wird unter Verwendung der aus diesen Kennkurven bei einem in der Einspritzphase gemessenen Druck gefundenen Werten für Kompressibilitätsmodul und Dichte in einem Trial-and-Error-Verfahren die Druckdifferenz aus der integrierten Bilanzgleichung bestimmt und das Paar von Kompressibilitätsmodul und Dichte, das am besten die über den betrachteten ...It is a method for detecting the type of fuel, which is injected via an injection system, in particular a common rail injection system, injected into a combustion chamber of an internal combustion engine. In this case, the injection system has a hydraulic system with a high-pressure region, which supplies a plurality of injectors for injecting the fuel, and a volume flow control valve for adjusting the fuel flow supplied to the high-pressure region via a high-pressure pump. The pressure in the high pressure region is measured over time and in phases during which the high pressure pump does not deliver fuel, the balance equation of the hydraulic system $ F1 is used and integrated over a considered period, where p is the pressure in the high pressure region, E is the compressibility modulus of the fuel, V is the volume of the high pressure area, QINJ is the injected fuel flow rate, QCNT_LEAK is the continuous leakage volume flow, and QSWI_LEAK is the switching leakage volume flow of the injectors. From characteristic curves of the compressibility modulus and the density as a function of the pressure known for each fuel type, the pressure difference from the integrated balance equation is determined using the values for compressibility modulus and density in a trial-and-error method determined from these characteristics at a pressure measured in the injection phase determined and the pair of compressibility modulus and density that best exceeds the considered ...
Description
Die Erfindung betrifft ein Verfahren zur Erkennung einer Kraftstoffsorte, die über eine Einspritzanlage, insbesondere eine Common-Rail-Einspritzanlage in einen Brennraum einer Brennkraftmaschine eingespritzt wird.The Invention relates to a method for detecting a type of fuel, the above an injection system, in particular a common rail injection system is injected into a combustion chamber of an internal combustion engine.
Bekannte Common-Rail-Einspritzanlagen umfassen ein Volumenstromregelventil (VCV – Volume Control Valve), das die Menge des Kraftstoffs regelt, der einer Hochdruckpumpe zugeführt wird und von dieser in einen Druckspeicher (Common Rail) gepumpt wird, ein Druckregelventil (PCV – Pressure Control Valve), das den Druck im Hochdruckbereich, d. h. im Druckspeicher mit den zugehörigen Zuführungen abhängig vom Lastzustand der Brennkraftmaschine einstellt, hält und abbaut, sowie Injektoren mit Einspritzdüsen, die mit dem Druckspeicher verbunden sind und Kraftstoff in den Brennraum der Brennkraftmaschine einspritzen. In einer anderen Ausführungsform von Einspritzanlagen wird das Druckregelventil weggelassen, wobei dann der Druck bei der Einspritzung über den Volumenstrom durch die Hochdruckpumpe geregelt bzw. gesteuert wird. Dem hydraulischen System, und dabei insbesondere den Injektoren, sind Leckagen inhärent, wobei es sich einerseits um eine so genannte Schaltleckage und andererseits um eine Dauerleckage handelt. Die Schaltleckage tritt bei der Einspritzung auf und entspricht einer Steuermenge, die zur indirekten Ansteuerung der Düsennadel über ein hydraulisches Kraftverstärkersystem eingesetzt wird. Die Dauerleckage ist eine kontinuierliche Leckage und ist auf Leckagen an den Düsennadel- und Ventilkolbenführungen zurückzuführen. Die Schaltleckagemengen und Dauerleckagemengen werden typischerweise über einen Kraftstoffrücklauf zum Kraftstoffbehälter zurückgeführt, in den gegebenenfalls auch der Rücklauf des Druckregelventils mündet.Known Common rail injection systems include a volume flow control valve (VCV - Volume Control Valve), which regulates the amount of fuel that a high-pressure pump supplied is pumped and from this in a pressure accumulator (common rail) is a pressure control valve (PCV), the the pressure in the high pressure area, d. H. in the pressure accumulator with the associated feeders dependent adjusts, holds and degrades the load state of the internal combustion engine, and injectors with injectors, which are connected to the pressure accumulator and fuel into the combustion chamber inject the internal combustion engine. In another embodiment of injection systems, the pressure regulating valve is omitted, wherein then the pressure during the injection through the volume flow through the high-pressure pump is controlled or controlled. The hydraulic System, and in particular the injectors, leaks are inherent, with on the one hand it is a so-called switching leakage and on the other hand is a permanent leak. The switching leakage occurs during injection on and corresponds to a tax amount for indirect control the nozzle needle over a hydraulic power amplifier system is used. The permanent leak is a continuous leak and is due to leaks at the nozzle needle and valve piston guides due. The switching leakage quantities and continuous leakage amounts are typically returned to the fuel tank via a fuel return, in FIG if necessary, also the return the pressure control valve opens.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Identifizierung bzw. Erkennung des Typs des in der Einspritzanlage umgesetzten Kraftstoffs zu schaffen, beispielsweise zur Erkennung, ob Benzin, Diesel, Winter- oder Sommerdiesel verwendet wird.Of the The present invention is based on the object, a method for identifying or detecting the type of fuel injection system converted fuel, for example, to detect whether Gasoline, diesel, winter or summer diesel is used.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.These Task is achieved by the features of claim 1 solved.
Entsprechend der Erfindung wird die Bilanzgleichung des geschlossenen hydraulischen Systems, d. h. die Gleichung für den Druckaufbau bzw. -abbau im System verwendet und zwar zur Reduktion der Einflussgrößen in Phasen, während derer die Hochdruckpumpe keinen Kraftstoff fördert. Dabei wird die Druckänderung, d. h. die Ableitung des Drucks im Druckspeicher bzw. im Hochdruckbereich nach der Zeit durch den Volumenstrom der Einspritzung, der äquivalent zu der eingespritzten Kraftstoffmasse ist, der Dauerleckage und der Schaltleckage sowie dem Kompressibilitätsmodul E des Kraftstoffs und dem Volumen V des Druckspeichers bestimmt. Durch Integrieren der Bilanzgleichung über einen betrachteten Zeitraum und aus für jeden Kraftstofftyp bekannten Kennkurven für den Kompressibilitätsmodul E und der Dichte ρ über den Druck kann unter Verwendung der aus diesen Kennkurven bei einem in der Einspritzphase gemessenen Druck gefundenen Werten für den Kompressibilitätsmodul E und die Dichte ρ in einem Versuchs- und Irrtums-Verfahren (Trial-and-Error-Verfahren) die Druckdifferenz aus der integrierten Bilanzgleichung bestimmt werden und das Paar von Kompressibilitätsmodul E und Dichte ρ, das am besten die über den betrachteten Zeitraum gemessene Druckdifferenz reproduziert, zur Erkennung des Kraftstoffs herangezogen werden.Corresponding The invention is the balance equation of the closed hydraulic Systems, d. H. the equation for used the pressure build-up or degradation in the system and indeed for the reduction the influencing variables in phases, while of which the high-pressure pump does not deliver fuel. The pressure change, d. H. the derivation of the pressure in the accumulator or in the high pressure area after the time by the volume flow of the injection, the equivalent is the injected fuel mass, the permanent leakage and the Schaltleckage and the compressibility modulus E of the fuel and the volume V of the pressure accumulator determined. By integrating the Balance sheet equation over a period considered and from known for each type of fuel Characteristic curves for the compressibility module E and the density ρ over the Pressure can be obtained by using these characteristics at a In the injection phase measured pressure found values for the compressibility module E and the density ρ in a trial and error procedure (Trial-and-error method) the pressure difference from the integrated Balance equation are determined and the pair of compressibility module E and density ρ, that's the best over reproduces the pressure difference measured over the considered period, be used to detect the fuel.
Die Kenntnis der Art des Kraftstoffs und damit des Kompressibilitätsmoduls E und der Dichte ρ bringt zahlreiche Vorteile mit sich. So kann, abhängig von den möglichen Kraftstoffarten die Offset-Drucksteuerung bzw. die Übergangssteuerung (QTRA = V/E·dp/dt) angepasst werden. Weiterhin kann eine Anpassung der Parameter der PID-Regelung, beispielsweise der Proportionalitätskonstante des P Reglers an die möglichen Kraft stoffarten vorgenommen werden und so jeder Regler optimiert werden. Schließlich kann die Voraussage des Kraftstoffdrucks entsprechend der möglichen Kraftstoffart angepasst werden. Es kann eine Korrektur der Einspritzdauer und des Einspritzbeginns abhängig von der Kraftstoffart vorgenommen werden, ebenso wie andere Verbrennungssteuerungsparameter. Schließlich kann die Bestimmung des Kraftstofftyps zur Motorüberwachung verwendet werden, d. h. es kann ein Alarmsignal gegeben werden, wenn ein falscher Kraftstoff verwendet wird, beispielsweise wenn Benzin in einen für Diesel ausgerichteten Motor getankt wird.The knowledge of the type of fuel and thus the compressibility modulus E and the density ρ brings numerous advantages. Thus, depending on the possible fuel types, the offset pressure control or the transition control (Q TRA = V / E · dp / dt) can be adjusted. Furthermore, an adaptation of the parameters of the PID control, for example, the proportionality constant of the P controller to the possible fuel types can be made and thus each controller can be optimized. Finally, the fuel pressure prediction can be adjusted according to the possible fuel type. A correction of the injection duration and the start of injection may be made depending on the type of fuel, as well as other combustion control parameters. Finally, the determination of the fuel type may be used for engine monitoring, ie an alarm signal may be given if a wrong fuel is used, for example, when gasoline is being fueled in a diesel-fueled engine.
Ausführungsbeispiele des erfindungsgemäßen Verfahrens werden anhand der beigefügten Zeichnung näher erläutert. Es zeigen:embodiments the method according to the invention are based on the attached Drawing closer explained. Show it:
In
Im
Falle, dass das hydraulische System kein Druckventil
Die
Injektoren
Die
Bilanzgleichung für
den Druckaufbau in diesem geschlossenen hydraulischen System kann
wie folgt beschrieben werden. wobei
dp/dt die Ableitung des Drucks p nach der Zeit, E der Kompressibilitätsmodul
und V das Volumen des Druckspeichers
In
Wird
die Gleichung (2) über
die Zeit integriert, wobei die Zeit beispielsweise diejenige ist,
die für
einen Einspritzvorgang entsprechend Pfeil
Dabei bezeichnet mf_inj_sum die Masse des in dem Zeitraum eingespritzten Kraftstoffs, VSWI_LEAK das Volumen der in dem Zeitraum, hier dem Einspritzzeitraum, auftretenden Schaltleckage und QCNT_LEAKΔt die Dauerleckage über den betrachteten Zeitraum, hier den Einspritzzeitraum.In this case, mf_inj_sum denotes the mass of the fuel injected in the period, V SWI_LEAK the volume of the switching leakage occurring in the period, here the injection period, and Q CNT_LEAK Δt the permanent leakage over the considered period, here the injection period.
In der Gleichung (3) sind die Einspritzmasse und das Volumen der Schaltleckage für jeden Kraftstofftyp grundsätzlich bekannt, die Dauerleckage kann durch ein Adaptionsverfahren im Vorhinein geschätzt werden. Allerdings ist diese Dauerleckage über den betrachteten kurzen Zeitraum sehr klein, so dass der letzte Term der Gleichung (3) auch vernachlässigt werden kann, ohne dass wesentliche Fehler auftreten. Bei direkt angetriebenen Injektoren (New Generation Injektoren) entfällt die Schaltleckage.In of equation (3) are the injection mass and the volume of the switching leakage for each Fuel type basically known, the permanent leakage can by an adaptation method in advance estimated become. However, this permanent leak is over the considered short Period very small, so that the last term of the equation (3) too neglected can be without significant errors. For directly driven Injectors (New Generation Injectors) eliminates the switching leakage.
Somit sind aus der Gleichung (3) nur die Kompressibilität E und die Dichte ρ unbekannt, wobei der Kompressibilitätsmodul E und die Dichte ρ grundsätzlich druckabhängig sind. Da jedoch die Druckänderung in dem betrachteten Zeitraum, z. B. der Einspritzung relativ klein ist, können der Kompressibilitätsmodul und die Dichte als konstant angesehen werden.Consequently are from the equation (3) only the compressibility E and the density ρ unknown, where the compressibility module E and the density ρ are basically pressure-dependent. However, because the pressure change in the considered period, z. B. the injection is relatively small is, can the compressibility module and the density is considered constant.
In
den
Mit
Hilfe dieser Kennlinien wird unter Heranziehung des in dem Druckspeicher
In
der folgenden Tabelle ist für
unterschiedliche Temperaturen und für vorgegebene Parameter aus den
Kennlinien der
Aus
dieser Tabelle ist zu erkennen, dass jeweils für eine Temperatur unterschiedliche
Druckdifferenzwerte für
Sommer- und Winterdiesel
erzielt werden, so dass ein Schwellen- oder Entscheidungswert vorgegeben
werden kann. Beispielsweise kann Kraftstofftemperatur von 10° ein Wert
von 0,98 angegeben werden, d. h., wenn Δp größer als 0,98 ist, kann der
Kraftstoff als Sommerdiesel erkannt werden und wenn die Druckdifferenz
kleiner als 0,98 ist, wird auf Winterdiesel geschlossen. Es können somit
solche Entscheidungswerte, die abhängig von der Kraftstofftemperatur
sind, in der Steuer-/Regeleinheit gespeichert und bei der Bestimmung des
Kraftstofftyps herangezogen werden. Dabei ist wichtig, dass die
Kraftstofftemperatur, die auch der Temperatur im Druckspeicher
Claims (2)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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DE102007052096A DE102007052096B4 (en) | 2007-10-31 | 2007-10-31 | Method of identifying a fuel grade |
PCT/EP2008/062598 WO2009056402A1 (en) | 2007-10-31 | 2008-09-22 | Method for identifying a type of fuel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102007052096A DE102007052096B4 (en) | 2007-10-31 | 2007-10-31 | Method of identifying a fuel grade |
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Publication Number | Publication Date |
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DE102007052096A1 true DE102007052096A1 (en) | 2009-05-14 |
DE102007052096B4 DE102007052096B4 (en) | 2009-07-09 |
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DE102007052096A Active DE102007052096B4 (en) | 2007-10-31 | 2007-10-31 | Method of identifying a fuel grade |
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WO (1) | WO2009056402A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010034133A1 (en) * | 2010-08-12 | 2012-02-16 | Volkswagen Ag | Method for detecting e.g. diesel in fuel delivery system of internal combustion engine, involves determining sound velocity from running time, and determining expected fuel as fuel existing in fuel delivery system of engine |
DE102011077404A1 (en) | 2011-06-10 | 2012-12-13 | Continental Automotive Gmbh | Method for determination of fuel quality in high pressure injection apparatus in motor car, involves comparing measurement curve with comparison curves, and determining fuel quality when measurement curve corresponds to comparison curves |
DE102013223756A1 (en) * | 2013-11-21 | 2015-05-21 | Continental Automotive Gmbh | Method for operating injectors of an injection system |
DE102014007963A1 (en) * | 2014-06-04 | 2015-12-17 | Man Diesel & Turbo Se | Method for operating an internal combustion engine and engine control unit |
DE102016225435B3 (en) * | 2016-12-19 | 2018-02-15 | Continental Automotive Gmbh | Method for operating an internal combustion engine with fuel detection |
DE102018104258A1 (en) * | 2018-02-26 | 2019-08-29 | Man Truck & Bus Ag | Technology for fuel determination |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045520A1 (en) | 2010-09-15 | 2012-03-15 | Volkswagen Ag | Method and device for detecting a fuel in a fuel supply system of an internal combustion engine |
DE102010045517A1 (en) | 2010-09-15 | 2012-03-15 | Volkswagen Ag | Method for detecting e.g. diesel in fuel delivery system of internal combustion engine, involves determining density of fuel in fuel delivery system of engine based on resonance frequency of quartz crystal |
DE102010045521B4 (en) | 2010-09-15 | 2023-12-28 | Volkswagen Ag | Method for detecting a fuel |
SE537360C2 (en) * | 2011-12-28 | 2015-04-14 | Scania Cv Ab | Arrangement and method for estimating a fuel mixture content of an auxiliary fuel |
US9651535B2 (en) | 2013-01-08 | 2017-05-16 | Volvo Truck Corporation | Method and arrangement for determining a fuel quality |
DE102017205775A1 (en) | 2017-04-05 | 2018-10-11 | Robert Bosch Gmbh | Method and control device for determining the composition of the fuel in a motor vehicle |
DE102019205680B4 (en) * | 2019-04-18 | 2021-08-05 | Vitesco Technologies GmbH | Method and device for determining the fuel temperature of a fuel |
Citations (3)
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DE19633156A1 (en) * | 1996-08-17 | 1998-02-19 | Bosch Gmbh Robert | Device and method for controlling an internal combustion engine |
DE19703891A1 (en) * | 1997-02-03 | 1998-08-06 | Bosch Gmbh Robert | Method and device for detecting a leak |
EP1873378A1 (en) * | 2006-06-26 | 2008-01-02 | Ford Global Technologies, LLC | Method of determinig the type of fuel used in the fuels system of an internal combustion engine and fuel system for performing the method |
Family Cites Families (6)
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DE102010034133A1 (en) * | 2010-08-12 | 2012-02-16 | Volkswagen Ag | Method for detecting e.g. diesel in fuel delivery system of internal combustion engine, involves determining sound velocity from running time, and determining expected fuel as fuel existing in fuel delivery system of engine |
DE102011077404A1 (en) | 2011-06-10 | 2012-12-13 | Continental Automotive Gmbh | Method for determination of fuel quality in high pressure injection apparatus in motor car, involves comparing measurement curve with comparison curves, and determining fuel quality when measurement curve corresponds to comparison curves |
DE102011077404B4 (en) * | 2011-06-10 | 2012-12-27 | Continental Automotive Gmbh | Method for determining the fuel type in a high-pressure injection device of an internal combustion engine |
US10344698B2 (en) | 2013-11-21 | 2019-07-09 | Continental Automotive Gmbh | Method for operating injectors of an injection system |
DE102013223756A1 (en) * | 2013-11-21 | 2015-05-21 | Continental Automotive Gmbh | Method for operating injectors of an injection system |
DE102013223756B4 (en) * | 2013-11-21 | 2015-08-27 | Continental Automotive Gmbh | Method for operating injectors of an injection system |
DE102014007963A1 (en) * | 2014-06-04 | 2015-12-17 | Man Diesel & Turbo Se | Method for operating an internal combustion engine and engine control unit |
DE102016225435B3 (en) * | 2016-12-19 | 2018-02-15 | Continental Automotive Gmbh | Method for operating an internal combustion engine with fuel detection |
CN110121589A (en) * | 2016-12-19 | 2019-08-13 | 世倍特集团有限责任公司 | The method for running internal combustion engine with fuel identification function |
US11053867B2 (en) | 2016-12-19 | 2021-07-06 | Vitesco Technologies GmbH | Method for operating an internal combustion engine with a fuel detection |
CN110121589B (en) * | 2016-12-19 | 2022-01-28 | 世倍特集团有限责任公司 | Method for operating an internal combustion engine with a fuel detection function |
DE102018104258A1 (en) * | 2018-02-26 | 2019-08-29 | Man Truck & Bus Ag | Technology for fuel determination |
DE102018104258B4 (en) * | 2018-02-26 | 2021-03-25 | Man Truck & Bus Se | Fuel determination technology |
Also Published As
Publication number | Publication date |
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DE102007052096B4 (en) | 2009-07-09 |
WO2009056402A1 (en) | 2009-05-07 |
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