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WO2009059930A1 - Système de carburant pour la commande d'un moteur à combustion interne, et procédé de commande d'un tel système de carburant - Google Patents

Système de carburant pour la commande d'un moteur à combustion interne, et procédé de commande d'un tel système de carburant Download PDF

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Publication number
WO2009059930A1
WO2009059930A1 PCT/EP2008/064766 EP2008064766W WO2009059930A1 WO 2009059930 A1 WO2009059930 A1 WO 2009059930A1 EP 2008064766 W EP2008064766 W EP 2008064766W WO 2009059930 A1 WO2009059930 A1 WO 2009059930A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
fuel system
pressure
determined
engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2008/064766
Other languages
German (de)
English (en)
Inventor
Fredrik Borchsenius
Hong Zhang
Lorand De Ouvenou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of WO2009059930A1 publication Critical patent/WO2009059930A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • F02D19/0663—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
    • 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
    • F02D19/08—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 simultaneously using pluralities of fuels
    • F02D19/082—Premixed fuels, i.e. emulsions or blends
    • F02D19/085—Control based on the fuel type or composition
    • F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
    • F02D19/088—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
    • G01K11/24—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of the velocity of propagation of sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
    • G01K13/026—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving liquids
    • 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
    • F02D19/0623—Failure diagnosis or prevention; Safety measures; Testing
    • 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
    • F02D41/24—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
    • F02D2200/0611—Fuel type, fuel composition or fuel quality
    • F02D2200/0612—Fuel type, fuel composition or fuel quality determined by estimation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/04—Fuel pressure pulsation in 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Definitions

  • the invention relates to a fuel system according to the preamble of claim 1 and to a method according to the preamble of claim 9.
  • the fuel system is used to control an internal combustion engine, in particular an automotive engine, in which the fuel from a fuel tank via at least one fuel pump in a fuel Manifold and from there via fuel injectors is injected into combustion chambers of the internal combustion engine and in which the pressure in the fuel rail is detected by a pressure sensor.
  • the internal combustion engine should be able to start as quickly as possible even in a hot state (DE 101 25 982 Al).
  • Such fuel systems are operated with fuels of different properties, in particular different fuel temperatures and different types of fuel - such as winter and summer diesel, as well
  • Biodiesel or RME (rapeseed methyl ester) - are of importance. Since, depending on the temperature and the type of fuel, material parameters that have a significant influence on the accuracy of the injection quantity change, the parameter of the injected fuel quantity is not significant in the case of unknown parameters.
  • the invention has for its object to provide a fuel system, in which the properties of the fuel can be determined.
  • the type of fuel is identified on the one hand at a known temperature and, on the other hand detected at a known fuel, the temperature in the high pressure part of the plastic.
  • the object of the invention is achieved by a fuel system according to claim 1 and by a method according to claim 9.
  • the speed of sound in the fuel is measured, and based on the measured sound velocity, the fuel properties are determined.
  • pressure oscillations with characteristic natural frequencies, which are excited by the injection in the hydraulic fuel system are detected and analyzed by the pressure sensor.
  • the advantages of the invention are, in particular, that the fuel type and the fuel temperature are determined with little effort. No special temperature sensors are needed in the high pressure part of the fuel system. Likewise, a physical model is not needed with which the temperature in the high pressure part could be estimated from the temperature measured by temperature sensors in the low pressure system.
  • Figure 1 is a schematic representation of a fuel system according to the invention
  • FIG. 2 is a flow chart of a first program executed in the fuel system according to FIG. 1;
  • FIG. 3 shows a flow chart of a second program executed in the fuel system according to FIG. 1
  • FIG. 4 shows frequency spectra of the pressure signal in the fuel system obtained by a fast Fourier transformation. Manifold at two different fuel temperatures.
  • a fuel system 1 (FIG. 1), which is intended in particular for supplying a motor vehicle engine with diesel fuel, has a high-pressure pump 2, which also supplies fuel from a container 3 to a fuel manifold or distributor rail 4 "Common rail" referred to, promoted and there for pressure required to build up p. From the fuel manifold 4, the fuel is passed through injector 5 to injectors 6 and injected from these into the combustion chambers or cylinders of the engine are not shown here because they are well known.
  • the pressure p in the fuel rail 4 or elsewhere in the high pressure part is measured by a pressure sensor 7 and transmitted to an engine control unit (ECU) 8 and to an evaluation circuit 9 cooperating therewith.
  • the evaluation circuit 9 contains a first-order delay element 10, which filters out the low-frequency dynamics from the pressure signal p.
  • the fuel temperature and the fuel type have a direct influence on the speed of sound of the fluid, that is the liquid fuel.
  • By injecting the hydraulic system is excited to pressure oscillations with characteristic natural frequencies. These are detected with the already existing pressure sensor 7 and then analyzed.
  • the filtered pressure signal passes to an FFT circuit 12, which can also be realized as an algorithm, where it is subjected to a fast Fourier transformation; and thus the natural hydraulic frequencies in the liquid fuel are determined.
  • the filter parameters must be adapted to the frequencies to be identified.
  • the fast Fourier transform or FFT (for "fast Fourier transformation") is for example in the article "Fast Fourier transformation” in the free encyclopaedia Wikipedia (http: // de. wikipedia.org/g / Fast Fourier Transformation) described.
  • Accurate detection of the fuel used is achieved by comparing the hydraulic spectra acquired at different pressures and temperatures with the corresponding data of reference fuels deposited in the engine controller 8.
  • high-frequency sampled pressure signals are stored in a data memory, which is included for example in the engine control.
  • the fast Fourier transform can be performed either in the FFT circuit 12, but it can also be implemented by an algorithm as a function in the engine control software. Depending on the application, the evaluation will take place immediately or in operating states with low ECU utilization.
  • a frequency analysis is carried out, which outputs in a correction block 14 a value TI correction for a correction of the control duration TI for the respective injector 6.
  • the injection quantity mF for the individual injector is transmitted by the engine controller 8 as a signal to a block 15, which also receives the pressure signal p and generates a nominal value TI nominal of the injection duration from both signals.
  • the output signals of the blocks 14 and 15 are combined in an adder 16 and give the corrected value of the control duration TI for the respective injector 6, thus determines the amount of fuel to be injected.
  • the applicable speed of sound or modulus of elasticity (modulus of elasticity) is determined.
  • the accuracy of a pressure wave compensation function (IDCL) can be improved.
  • IDCL pressure wave compensation function
  • a temperature sensor may also be omitted.
  • step Sl Reference operating conditions determined.
  • step S2 a query is made as to whether a reference operating state has been found. If the answer is no, the system returns to step S1. If the answer is yes, it will be in one step
  • step S3 the pressure signal in the injector line 5 is measured. Then, in a step S4, a fast Fourier transformation is performed. Then in one
  • Step S5 queried whether an identification of the E-module was successful. If the answer is no, the system returns to step S1. If the answer is yes, it will be in one step
  • step S8 a multiple injection is activated. Then in one step S9: the identified modulus of elasticity stored. Thereafter, in a step S10: the control correction is calculated for all injections.
  • step Sil This is transferred in a step Sil: to an injector control contained in the engine control unit 8. This concludes the program. It is continuously processed cyclically.
  • Another application is an identification of the fuel in combination with a temperature measurement. Special sensors for the fuel identification can be omitted.
  • the identification of the fuel is necessary to adapt the mode of operation to the type of fuel. The identification is expediently carried out after each refueling. For example, another engine calibration for biodiesel can be used.
  • a misfuelling can be diagnosed and consequent engine damage can be avoided. Again, the identification is to be performed after each refueling.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Le système de carburant commande un moteur pour véhicule, système dans lequel le carburant est envoyé, en provenance d'un réservoir (3), via au moins une pompe de carburant (2), dans un collecteur de carburant (4) et, de là, est injecté, via des injecteurs de carburant (6), dans des chambres de combustion du moteur à combustion interne, et dans lequel la pression (p) dans le collecteur de carburant (4) est détectée au moyen d'un détecteur de pression (7). La vitesse du son dans le carburant est mesurée, et les propriétés du carburant sont déterminées au moyen de la vitesse du son mesurée. Le type de carburant est déterminé au moyen de la vitesse du son dans le carburant à température connue. Au moyen de la vitesse du son pour un type de carburant connu, la température dans le système haute pression d'injection de carburant est déterminée.
PCT/EP2008/064766 2007-11-08 2008-10-31 Système de carburant pour la commande d'un moteur à combustion interne, et procédé de commande d'un tel système de carburant Ceased WO2009059930A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007053248.4 2007-11-08
DE102007053248A DE102007053248B4 (de) 2007-11-08 2007-11-08 Kraftstoffsystem zum Steuern einer Brennkraftmaschine und Verfahren zum Steuern eines solchen Kraftstoffsystems

Publications (1)

Publication Number Publication Date
WO2009059930A1 true WO2009059930A1 (fr) 2009-05-14

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ID=40405143

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/064766 Ceased WO2009059930A1 (fr) 2007-11-08 2008-10-31 Système de carburant pour la commande d'un moteur à combustion interne, et procédé de commande d'un tel système de carburant

Country Status (2)

Country Link
DE (1) DE102007053248B4 (fr)
WO (1) WO2009059930A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111336026A (zh) * 2018-12-18 2020-06-26 罗伯特·博世有限公司 用于运行燃料系统的方法以及燃料系统

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010034133B4 (de) * 2010-08-12 2021-04-22 Volkswagen Ag Verfahren zum Detektieren eines Kraftstoffes in einem Kraftstoffzuführungssystem einer Brennkraftmaschine
DE102014225530A1 (de) * 2014-12-11 2016-06-16 Robert Bosch Gmbh Verfahren zum Betreiben eines Kraftstoffinjektors
DE102015206128A1 (de) * 2015-04-07 2016-10-13 Robert Bosch Gmbh Verfahren zum Betreiben eines Kraftstoffinjektors
DE102015226446B4 (de) 2015-12-22 2017-08-31 Continental Automotive Gmbh Verfahren zur Ermittlung der Zusammensetzung des zum Betrieb eines Verbrennungsmotors verwendeten Kraftstoffes
GB2569579A (en) * 2017-12-20 2019-06-26 Delphi Tech Ip Ltd Method of determining rail pressure in a common rail fuel system
DE102020212322A1 (de) 2020-09-30 2022-03-31 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Ermittlung einer Einspritzmenge von Kraftstoff
WO2025042566A1 (fr) * 2023-08-18 2025-02-27 Cummins Inc. Systèmes de combustible comprenant une auto-adaptation à la variation de combustible gazeux

Citations (7)

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Publication number Priority date Publication date Assignee Title
EP0651150A2 (fr) * 1993-11-02 1995-05-03 Toyota Jidosha Kabushiki Kaisha Dispositif d'injection de carburant pour moteur
DE10125982A1 (de) 2001-05-29 2002-12-12 Bosch Gmbh Robert Kraftstoffsystem für eine Brennkraftmaschine, Brennkraftmaschine, sowie Verfahren zum Betreiben einer Brennkraftmaschine
WO2004063547A1 (fr) * 2003-01-15 2004-07-29 Siemens Aktiengesellschaft Procede et dispositif pour determiner la temperature du carburant qui se trouve dans un systeme d'injection a reservoir
DE102004057963A1 (de) * 2004-12-01 2006-06-08 Robert Bosch Gmbh Verfahren und Vorrichtung zur Anregung von Druckschwankungen in einem Kraftstoffversorgungssystem einer Brennkraftmaschine
US20060130812A1 (en) * 2003-09-01 2006-06-22 Tsuneo Tsutsui Fuel injection system of internal combustion engine
WO2008007128A1 (fr) * 2006-07-13 2008-01-17 Delphi Technologies, Inc. Estimation de la composition d'un carburant et contrôle de l'injection de carburant
DE102007045574A1 (de) * 2007-06-14 2008-12-18 Robert Bosch Gmbh Verfahren zur Bestimmung der Kraftstoffeigenschaften einer direkteinspritzenden Brennkraftmaschine

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Publication number Priority date Publication date Assignee Title
DE19633156A1 (de) * 1996-08-17 1998-02-19 Bosch Gmbh Robert Vorrichtung und Verfahren zur Steuerung einer Brennkraftmaschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0651150A2 (fr) * 1993-11-02 1995-05-03 Toyota Jidosha Kabushiki Kaisha Dispositif d'injection de carburant pour moteur
DE10125982A1 (de) 2001-05-29 2002-12-12 Bosch Gmbh Robert Kraftstoffsystem für eine Brennkraftmaschine, Brennkraftmaschine, sowie Verfahren zum Betreiben einer Brennkraftmaschine
WO2004063547A1 (fr) * 2003-01-15 2004-07-29 Siemens Aktiengesellschaft Procede et dispositif pour determiner la temperature du carburant qui se trouve dans un systeme d'injection a reservoir
US20060130812A1 (en) * 2003-09-01 2006-06-22 Tsuneo Tsutsui Fuel injection system of internal combustion engine
DE102004057963A1 (de) * 2004-12-01 2006-06-08 Robert Bosch Gmbh Verfahren und Vorrichtung zur Anregung von Druckschwankungen in einem Kraftstoffversorgungssystem einer Brennkraftmaschine
WO2008007128A1 (fr) * 2006-07-13 2008-01-17 Delphi Technologies, Inc. Estimation de la composition d'un carburant et contrôle de l'injection de carburant
DE102007045574A1 (de) * 2007-06-14 2008-12-18 Robert Bosch Gmbh Verfahren zur Bestimmung der Kraftstoffeigenschaften einer direkteinspritzenden Brennkraftmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111336026A (zh) * 2018-12-18 2020-06-26 罗伯特·博世有限公司 用于运行燃料系统的方法以及燃料系统

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Publication number Publication date
DE102007053248A1 (de) 2009-05-20
DE102007053248B4 (de) 2009-07-09

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