EP1228304A1 - Procede et dispositif pour faire varier une pression d'admission produite par une pompe basse pression et appliquee a une pompe haute pression - Google Patents

Procede et dispositif pour faire varier une pression d'admission produite par une pompe basse pression et appliquee a une pompe haute pression

Info

Publication number
EP1228304A1
EP1228304A1 EP00972629A EP00972629A EP1228304A1 EP 1228304 A1 EP1228304 A1 EP 1228304A1 EP 00972629 A EP00972629 A EP 00972629A EP 00972629 A EP00972629 A EP 00972629A EP 1228304 A1 EP1228304 A1 EP 1228304A1
Authority
EP
European Patent Office
Prior art keywords
pressure pump
fuel
internal combustion
combustion engine
pressure
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.)
Granted
Application number
EP00972629A
Other languages
German (de)
English (en)
Other versions
EP1228304B1 (fr
Inventor
Klaus Joos
Jens Wolber
Thomas Frenz
Hansjoerg Bochum
Markus Amler
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1228304A1 publication Critical patent/EP1228304A1/fr
Application granted granted Critical
Publication of EP1228304B1 publication Critical patent/EP1228304B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • 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
    • 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
    • F02D41/3082—Control of electrical fuel pumps
    • 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
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/02—Fuel evaporation in fuel rails, e.g. in common rails

Definitions

  • the present invention relates to a method and a device for varying a pre-pressure generated by a low-pressure pump and applied to a high-pressure pump, the low-pressure pump and the high-pressure pump delivering fuel for an internal combustion engine.
  • pump arrangements are used to supply the internal combustion engines with fuel, which consist of a low-pressure pump, the so-called pre-feed pump, and a high-pressure pump, the so-called main feed pump.
  • the low-pressure pump can be designed as required and then always delivers as much fuel as is currently required by the high-pressure pump.
  • fuel can evaporate in the high-pressure pump.
  • the vapor formation in the high pressure pump is favored by high temperatures in the high pressure pump and by a low admission pressure with which the fuel on the High pressure pump is present. If steam is formed in the high-pressure pump, high pressure can no longer be generated in it, and the internal combustion engine is only insufficiently supplied with fuel, which has negative effects on the functionality of the internal combustion engine.
  • the setpoint of the fuel admission pressure is variable and can be chosen so high that in any case no steam formation occurs in the high-pressure pump.
  • the delivery rate of the low-pressure pump drops by approx. 20 liters per hour for every 1 bar of pressure increase.
  • the low pressure pump In certain operating points of the internal combustion engine, for example in full load operation, when the internal combustion engine has a high need for fuel and at the same time the fuel is applied to the high pressure pump with a high admission pressure, the low pressure pump is very heavily loaded and may even reach its delivery limit, which in turn has negative effects on the functionality of the internal combustion engine.
  • the invention based on the method of the type mentioned at the beginning, proposes that the current temperature of the fuel is determined in the high pressure pump; depending on the fuel temperature, the lowest possible admission pressure is determined, at which evaporation of the fuel in the high-pressure pump is reliably avoided; and the low pressure pump is controlled or regulated in such a way that it generates the determined upstream pressure.
  • the admission pressure is therefore controlled or regulated as a function of the current temperature of the fuel in the high-pressure pump.
  • This has the advantage that steam formation in the high-pressure pump is definitely avoided.
  • the admission pressure is only chosen to be high enough that evaporation of the fuel in the high-pressure pump is reliably avoided.
  • This has the advantage that the admission pressure is not too high at any operating point of the internal combustion engine, for example for safety reasons or for other reasons, and the low-pressure pump is thereby unnecessarily loaded. This leads to a longer service life for the low pressure pump.
  • a low pressure pump requires less energy when the inlet pressure is lowered.
  • a low-pressure pump designed as an electric fuel pump (EKP) has a lower power consumption.
  • EKP electric fuel pump
  • the invention proposes that the fuel temperature be estimated on the basis of a physical model of the high pressure pump as a function of the temperature of the high pressure pump and certain state variables of the internal combustion engine. According to an advantageous development of the present invention, it is proposed that the current throughput of fuel in the internal combustion engine is determined and the fuel temperature in the high-pressure pump is determined taking into account the fuel throughput. The more fuel the internal combustion engine takes from the high-pressure circuit, the more cool fuel from the tank can be fed to the high-pressure circuit via the low-pressure pump. The cool fuel supplied causes a reduction in the
  • the temperature of the high-pressure pump is estimated on the basis of a physical model of the high-pressure pump as a function of certain state variables of the internal combustion engine.
  • the admission pressure be determined on the basis of a fuel vapor pressure characteristic curve, from which a value of the admission pressure associated with the fuel temperature is taken, to which a safety reserve pressure is added.
  • the fuel vapor pressure characteristic curve is a function of the admission pressure as a function of the fuel temperature in the high pressure pump. For a certain fuel temperature, the fuel vapor pressure characteristic curve can be taken from the associated value of the admission pressure, which must prevail so that the fuel is no longer evaporating.
  • the fuel vapor pressure characteristic curve depends on the type of fuel. For example, freshly refueled vaporizes
  • Embodiment of the present invention proposed that the admission pressure is estimated on the basis of a physical model of the high-pressure pump as a function of certain state variables of the internal combustion engine.
  • the same state variables as for the model-based estimation of the fuel temperature are advantageously used as state variables.
  • the state variables are advantageously in particular the temperature of the internal combustion engine, the intake air and / or the ambient temperature, the integral of the fuel throughput and / or the air throughput, the delivery rate, the power loss and / or the
  • Efficiency of the high pressure pump, the speed of the high pressure pump or the internal combustion engine, the fuel / air ratio lambda and / or the control of a quantity or pressure control valve are used.
  • the fuel temperature therefore does not have to be measured separately, but can be estimated on the basis of certain state variables of the internal combustion engine, which are usually recorded anyway and are available anyway.
  • Internal combustion engine depending on the type of Internal combustion engine and weighted from the operating point. For example, immediately after starting the internal combustion engine, it may be necessary to weight the state variables in such a way that the modeled fuel temperature takes into account the fact that the fuel in the high-pressure pump immediately after starting the internal combustion engine regardless of the state variables of the internal combustion engine has relatively low temperature and that this increases slowly with increasing operating time of the internal combustion engine.
  • the fuel vapor pressure characteristic curve be determined and stored for a worst-case scenario.
  • a worst-case scenario exists, for example, for freshly refueled winter fuel.
  • the vapor pressure curve of winter fuel requires relatively high admission pressures.
  • there is a safety reserve so that evaporation of the fuel in the high-pressure pump is reliably avoided even in the worst-case scenario. If there is fuel with low volatility (e.g. summer fuel or old fuel), lower pressures would be possible at the same temperatures than in the worst-case scenario. In this case, the distance of the worst-case characteristic plus the safety reserve from the actual vapor pressure curve of the present fuel is unnecessarily large.
  • the type of fuel that is filled is recognized and the stored fuel vapor pressure characteristic curve is adapted to the type of fuel that is being filled.
  • a refueling detection system is used which can distinguish, for example, summer fuel from winter fuel or fresh fuel from used fuel.
  • the stored fuel vapor pressure characteristic curve can be adapted to the actual fuel vapor pressure characteristic curve and the safety reserve pressure reduced.
  • the invention also proposes a device of the type mentioned at the outset, which has means for carrying out the method according to one of claims 1 to 10.
  • the device according to the invention can be designed as an independent control unit or integrated into a higher-level control unit of the internal combustion engine.
  • the high-pressure pump delivers fuel for a direct-injection internal combustion engine.
  • steam formation in the high-pressure pump has hitherto been possible at certain operating points, which is now effectively prevented by the present invention.
  • the low-pressure pump be designed as an electric fuel pump (EKP). If, according to the present invention, the admission pressure with which the fuel is applied to the high-pressure pump can be reduced at certain operating points of the internal combustion engine, a low-pressure pump designed as an electric fuel pump has the advantage that it has a lower power consumption, i.e. uses less electricity.
  • EKP electric fuel pump
  • Figure 1 is a schematic representation of a
  • Figure 2 is a schematic representation of a method according to the invention according to a preferred embodiment.
  • a direct-injection internal combustion engine is shown symbolically in FIG. 1 and is identified by reference number 1.
  • the internal combustion engine 1 is supplied with fuel from a fuel tank 4 by a combination of low-pressure pump 2 and high-pressure pump 3.
  • the low pressure pump 2 is designed as an electric fuel pump (EKP).
  • EKP electric fuel pump
  • the low-pressure pump 2 conveys the fuel from the fuel tank 4 to the high-pressure pump 3 in a demand-controlled manner.
  • the fuel delivered by the low-pressure pump 2 is applied to the high-pressure pump 3 with a pre-pressure p_soll.
  • the high pressure pump 3 is as one
  • the latter is supplied with fuel by the low-pressure pump 2 and the high-pressure pump 3.
  • the low-pressure pump 2 is supplied with fuel by the low-pressure pump 2 and the high-pressure pump 3.
  • the admission pressure p_soll with which the fuel is applied to the high-pressure pump 3 is controlled or regulated to a value that is as small as possible on the one hand so as not to unnecessarily load the low-pressure pump 2 and on the other hand that the fuel evaporates in the high pressure pump 3 is safely avoided.
  • the control or regulation of the admission pressure p_soll takes place according to the method according to the invention, which is described below with reference to Figure 2 is explained in more detail.
  • a control unit 5 which can be designed as an independent control unit or can be part of a higher-level control unit for controlling the internal combustion engine 1.
  • State variables 6 of the internal combustion engine 1 are recorded during the operation of the internal combustion engine 1.
  • the state variables 6 can be, for example, the temperature of the internal combustion engine 1, the intake air and / or the environment, the integral of the fuel throughput and / or the air throughput, the delivery rate, the power loss and / or the efficiency of the high pressure pump 3, the speed of the high pressure pump 3 or the internal combustion engine 1, the fuel / air ratio lambda and / or the control of a quantity or pressure control valve can be used.
  • the state variables 6 are fed to the control unit 5, where they are used to estimate the temperature T_HDP of the high-pressure pump
  • the physical model of the high pressure pump 3 for estimating the temperature T_HDP of the high pressure pump 3 is contained in a function block 7 of the control device 5.
  • the physical model of the high pressure pump 3 for estimating the fuel temperature T_Krst is contained in a function block 8 of the control unit 5.
  • the fuel temperature T_Krst can be calculated using the same state variables 6, which are also used to estimate the temperature T_HDP
  • High-pressure pump 3 are used, and / or on the basis of other state variables 6.
  • the current throughput r_akt of fuel in the internal combustion engine 1 is determined and the fuel temperature T_Krst in the high-pressure pump 3 is determined taking into account the fuel throughput rakt.
  • a fuel vapor pressure characteristic curve p (T) is stored in a function block 9 of the control unit 5.
  • the fuel vapor pressure characteristic curve p (T) indicates from which admission pressure p the fuel in the high pressure pump 3 changes from the vaporous to the liquid state at a specific temperature T of the fuel.
  • the fuel in the high pressure pump 3 evaporates.
  • the fuel in the high pressure pump 3 is liquid.
  • the modeled fuel temperature T_Krst is fed to the function block 9.
  • the fuel vapor pressure characteristic curve p (T) becomes one of the
  • Fuel temperature T_Krst the associated value of the admission pressure p_dd, to which a safety reserve pressure delta_p is added.
  • the sum of the admission pressure p_dd taken from the fuel vapor pressure characteristic curve p (T) and the safety reserve pressure delta_p results in the admission pressure p_soll to be set with which the fuel is to be applied to the high pressure pump 3, so that evaporation of fuel in the high pressure pump 3 is reliably prevented ,
  • the pre-pressure p_soll to be set is controlled accordingly. Regulation of
  • a control variable s which corresponds to the admission pressure p_soll to be set, is determined in a function block 10 of the control unit 5 and is then fed to the low-pressure pump 2.
  • the input variables of the control unit 5 are the state variables 6 of the internal combustion engine 1.
  • the control variable s is present at the output of the control unit 5 as the output variable.
  • the method according to the invention for varying the form p_soll of the high-pressure pump 3 has the particular advantage that, with a high fuel throughput r_akt of the internal combustion engine 1, the admission pressure p_soll can be reduced, which leads to a relief of the low-pressure pump 2. Furthermore, the low-pressure pump 2 has a lower power consumption when the admission pressure p_soll is lowered.
  • the form p_soll can also be determined on the basis of a physical model of the high-pressure pump 3 as a function of certain ones
  • State variables 6 of the internal combustion engine 1 can be estimated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de faire varier une pression d'admission (p_théor.) produite par une pompe basse pression (2) et appliquée à une pompe haute pression (3). La pompe basse pression (2) et la pompe haute pression (3) refoulent du carburant pour un moteur à combustion interne (1). Afin de maintenir d'une part la pression d'admission (p_théor.) aussi basse que possible et d'ajuster d'autre part ladite pression d'admission (p_théor.) de manière qu'elle soit aussi élevée que possible, afin d'éviter en toute fiabilité tout risque de vaporisation du carburant dans la pompe haute pression (3), il est prévu de déterminer la température présente du carburant (T_Krst) régnant dans la pompe haute pression (3); de déterminer, en fonction de la température du carburant (T_Krst) obtenue, une pression d'admission (p_théor.) aussi basse que possible, à laquelle tout risque de vaporisation du carburant dans la pompe haute pression (3) est écarté en toute fiabilité ; et d'amorcer et de réguler la pompe basse pression (2) de manière qu'elle produise la pression d'admission (p_théor.) déterminée. Ce procédé s'utilise de préférence sur la base de modèles physiques de la pompe haute pression (3).
EP00972629A 1999-10-26 2000-10-11 Procede et dispositif pour faire varier une pression d'admission produite par une pompe basse pression et appliquee a une pompe haute pression Expired - Lifetime EP1228304B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US951410 1999-10-26
DE19951410A DE19951410A1 (de) 1999-10-26 1999-10-26 Verfahren und Vorrichtung zur Variation eines von einer Niederdruckpumpe erzeugten und an einer Hochdruckpumpe anliegenden Vordrucks
PCT/DE2000/003563 WO2001031184A1 (fr) 1999-10-26 2000-10-11 Procede et dispositif pour faire varier une pression d'admission produite par une pompe basse pression et appliquee a une pompe haute pression

Publications (2)

Publication Number Publication Date
EP1228304A1 true EP1228304A1 (fr) 2002-08-07
EP1228304B1 EP1228304B1 (fr) 2005-04-27

Family

ID=7926838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00972629A Expired - Lifetime EP1228304B1 (fr) 1999-10-26 2000-10-11 Procede et dispositif pour faire varier une pression d'admission produite par une pompe basse pression et appliquee a une pompe haute pression

Country Status (6)

Country Link
US (1) US6708671B1 (fr)
EP (1) EP1228304B1 (fr)
JP (1) JP2003513193A (fr)
KR (1) KR100720847B1 (fr)
DE (1) DE19951410A1 (fr)
WO (1) WO2001031184A1 (fr)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10137315A1 (de) * 2001-07-31 2003-02-20 Volkswagen Ag Schaltungsanordnung und Verfahren zur Regelung einer elektrischen Kraftstoffpumpe in einem rücklauffreien Kraftstoff-Fördersystem
DE10143509C2 (de) * 2001-09-05 2003-08-21 Siemens Ag Verfahren und Steuereinrichtung zur Steuerung einer Brennkraftmaschine
DE10158950C2 (de) 2001-12-03 2003-10-02 Bosch Gmbh Robert Verfahren, Computerprogramm, Steuer- und Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine
DE10200795A1 (de) * 2002-01-11 2003-07-31 Bosch Gmbh Robert Verfahren, Computerprogramm, Steuer- und/oder Regelgerät zum Betreiben eines Kraftstoffsystems einer Brennkraftmaschine, sowie Brennkraftmaschine
DE10300929B4 (de) * 2003-01-13 2006-07-06 Siemens Ag Kraftstoffeinspritzsystem und Verfahren zur Bestimmung des Förderdrucks einer Kraftstoffpumpe
DE10360024A1 (de) * 2003-12-19 2005-07-21 Siemens Ag Verfahren und Vorrichtung zum Steuern einer Brennkraftmaschine
DE102004045738B4 (de) 2004-09-21 2013-05-29 Continental Automotive Gmbh Verfahren und Vorrichtung zum Steuern einer Brennkraftmaschine
DE102004062613B4 (de) * 2004-12-24 2014-02-20 Volkswagen Ag Verfahren und Vorrichtung zur Kraftstoffversorgung von Verbrennungsmotoren
JP2006233814A (ja) * 2005-02-23 2006-09-07 Toyota Motor Corp 内燃機関の燃料冷却装置
JP4544061B2 (ja) 2005-07-06 2010-09-15 トヨタ自動車株式会社 内燃機関の燃料系統の制御装置
JP2007285235A (ja) * 2006-04-18 2007-11-01 Honda Motor Co Ltd ディーゼルエンジンの燃料供給装置
DE102007050297A1 (de) * 2007-10-22 2009-04-23 Robert Bosch Gmbh Verfahren zur Steuerung eines Kraftstoffeinspritzsystems einer Brennkraftmaschine
US20090211559A1 (en) * 2008-02-22 2009-08-27 Andy Blaine Appleton Engine fuel supply circuit
DE102008018603B4 (de) 2008-04-11 2024-09-26 Volkswagen Ag Steuerung einer Kraftstoffpumpe
JP4661930B2 (ja) * 2008-09-19 2011-03-30 トヨタ自動車株式会社 内燃機関の燃料供給装置
JP5234431B2 (ja) * 2009-04-23 2013-07-10 株式会社デンソー 筒内噴射式内燃機関の燃圧制御装置
US8483932B2 (en) * 2009-10-30 2013-07-09 Ford Global Technologies, Llc Fuel delivery system control strategy
DE102010028799B4 (de) * 2010-05-10 2022-06-02 Robert Bosch Gmbh Verfahren zum Betreiben einer Einspritzanlage
JP5672180B2 (ja) * 2011-07-12 2015-02-18 トヨタ自動車株式会社 燃料供給システムの制御装置
WO2013046359A1 (fr) * 2011-09-28 2013-04-04 トヨタ自動車株式会社 Système de régulation d'injection de carburant pour moteur à combustion interne
DE102012218643B4 (de) * 2012-10-12 2020-07-09 Vitesco Technologies GmbH Kraftstoffeinspritzsystem für eine Brennkraftmaschine und Verfahren zum Betreiben eines solchen Kraftstoffeinspritzsystems
US9453466B2 (en) * 2013-02-21 2016-09-27 Ford Global Technologies, Llc Methods and systems for a fuel system
US9567915B2 (en) 2013-03-07 2017-02-14 GM Global Technology Operations LLC System and method for controlling a low pressure pump to prevent vaporization of fuel at an inlet of a high pressure pump
DE102014214284A1 (de) * 2014-07-22 2016-01-28 Robert Bosch Gmbh Verfahren zum Adaptieren eines Kraftstoffdrucks in einem Niederdruckbereich eines Kraftstoffdirekteinspritzungssystems
JP6292163B2 (ja) 2015-04-28 2018-03-14 トヨタ自動車株式会社 内燃機関の制御装置
US9689341B2 (en) 2015-06-08 2017-06-27 Ford Global Technologies, Llc Method and system for fuel system control
DE102016203652A1 (de) * 2016-03-07 2017-09-07 Robert Bosch Gmbh Verfahren zum Betreiben einer elektrischen Kraftstoffpumpe
DE102016204408A1 (de) * 2016-03-17 2017-09-21 Robert Bosch Gmbh Verfahren zum Ermitteln eines Sollwertes für eine Stellgröße zur Ansteuerung einer Niederdruckpumpe
DE102016204410A1 (de) * 2016-03-17 2017-09-21 Robert Bosch Gmbh Verfahren zum Ermitteln eines Sollwertes für eine Stellgröße zur Ansteuerung einer Niederdruckpumpe
JP6386489B2 (ja) * 2016-03-22 2018-09-05 株式会社豊田中央研究所 機関燃料系の燃料温度の推定に用いる適合係数の適合方法及び燃料温度推定装置及びポンプ制御装置
SE539985C2 (en) * 2016-06-27 2018-02-20 Scania Cv Ab Determination of pressurized fuel temperature
DE102016214729B4 (de) 2016-08-09 2023-06-29 Bayerische Motoren Werke Aktiengesellschaft Steuerung eines Vordrucks eines Niederdrucksystems eines Kraftfahrzeugs
US10125715B2 (en) * 2016-09-27 2018-11-13 Ford Global Technologies, Llc Methods and systems for high pressure fuel pump cooling
DE102017210503B4 (de) * 2017-06-22 2019-05-09 Continental Automotive Gmbh Notlaufverfahren zur Ansteuerung einer Kraftstoffpumpe
US10161348B1 (en) * 2017-07-25 2018-12-25 GM Global Technology Operations LLC Method and system for fuel control in a vehicle propulsion system
US10519890B2 (en) 2018-03-26 2019-12-31 Ford Global Technologies, Llc Engine parameter sampling and control method
US10697390B2 (en) * 2018-04-06 2020-06-30 GM Global Technology Operations LLC Gasoline reid vapor pressure detection system and method for a vehicle propulsion system
DE102019126420A1 (de) * 2019-10-01 2021-04-01 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Steuereinheit zum Betrieb eines Verbrennungsmotors mit unterschiedlichen Einspritzmodi
KR102472985B1 (ko) * 2021-05-06 2022-12-01 주식회사 현대케피코 가솔린 직접분사엔진의 연료펌프 제어 시스템 및 방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404944A (en) * 1980-08-07 1983-09-20 Nissan Motor Co., Ltd. Fuel supply system for an injection-type internal combustion engine
DE3811773A1 (de) * 1988-04-08 1989-10-19 Pierburg Gmbh Brennstoffversorgungseinrichtung fuer eine brennkraftmaschine
US5542395A (en) 1993-11-15 1996-08-06 Walbro Corporation Temperature-compensated engine fuel delivery
JP3067478B2 (ja) * 1993-08-19 2000-07-17 トヨタ自動車株式会社 燃料噴射装置
DE19539885A1 (de) 1995-05-26 1996-11-28 Bosch Gmbh Robert Kraftstoffversorgungsanlage und Verfahren zum Betreiben einer Brennkraftmaschine
DE19631167B4 (de) * 1996-08-01 2005-08-11 Siemens Ag Referenzdruckventil
DE19756087A1 (de) * 1997-12-17 1999-06-24 Bosch Gmbh Robert Hochdruckpumpe zur Kraftstoffversorgung bei Kraftstoffeinspritzsystemen von Brennkraftmaschinen
DE19818421B4 (de) 1998-04-24 2017-04-06 Robert Bosch Gmbh Kraftstoffversorgungsanlage einer Brennkraftmaschine
JP2001152992A (ja) * 1999-11-30 2001-06-05 Unisia Jecs Corp エンジンの燃料圧力制御装置
US6457460B1 (en) * 2000-11-13 2002-10-01 Walbro Corporation Fuel delivery system with recirculation cooler

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0131184A1 *

Also Published As

Publication number Publication date
JP2003513193A (ja) 2003-04-08
EP1228304B1 (fr) 2005-04-27
KR100720847B1 (ko) 2007-05-25
KR20020060212A (ko) 2002-07-16
DE19951410A1 (de) 2001-05-10
WO2001031184A1 (fr) 2001-05-03
US6708671B1 (en) 2004-03-23

Similar Documents

Publication Publication Date Title
EP1228304B1 (fr) Procede et dispositif pour faire varier une pression d'admission produite par une pompe basse pression et appliquee a une pompe haute pression
EP1828580B1 (fr) Procede et dispositif d'alimentation en carburant de moteurs a combustion interne
DE10059571B4 (de) Vorrichtung zum Steuern eines Kraftstoffdrucks eines Motors und Verfahren dafür
DE10158950C2 (de) Verfahren, Computerprogramm, Steuer- und Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine
DE102006035394B4 (de) Steuervorrichtung eines Druckspeicherkraftstoffsystems
EP1583900B1 (fr) Systeme d'injection de carburant et procede pour determiner la pression d'alimentation d'une pompe a carburant
DE10059570B4 (de) Kraftstoffdruck-Steuervorrichtung eines Motors
DE10061987A1 (de) Verfahren und Vorrichtung zum Kühlen einer Kraftstoffeinspritzanlage
DE19913477B4 (de) Verfahren zum Betreiben einer Kraftstoffzuführeinrichtung einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs
WO2017097614A1 (fr) Dosage de carburant pour le fonctionnement d'un moteur à combustion interne
DE112016004323T5 (de) Systeme und Verfahren zur Erhöhung der Dieselabgasfluidzufuhrkapazität
EP1339961B1 (fr) Procede, programme d'ordinateur et appareil de commande et/ou de reglage permettant de faire fonctionner un moteur a combustion interne
EP1273780B1 (fr) Procédé de commande d'un moteur à combustion en particulier d'une automobile
DE4039598B4 (de) Heißstartverfahren und -Vorrichtung für eine Brennkraftmaschine
DE4019187C2 (de) Mehrstoff-Maschinensteuerung mit Anfangsverzögerung
DE102019107635B4 (de) Benzin-Reid-Dampfdruck-Erfassungssystem für ein Fahrzeugantriebssystem
DE102017221342B4 (de) Toleranz- und Verschleißkompensation einer Kraftstoffpumpe
EP1379770A1 (fr) Procede, programme informatique et dispositif de commande et/ou regulation destines a l'exploitation d'un moteur a combustion interne et moteur a combustion interne
DE102017221333B4 (de) Toleranz- und Verschleißkompensation einer Kraftstoffpumpe
DE102019203424A1 (de) Verfahren zum Betreiben eines Kraftstoffsystems, Steuergerät und Kraftstoffsystem
EP0923669A1 (fr) Fonctionnement d'un moteur a combustion interne, notamment d'automobile
DE102004039311B4 (de) Verfahren und Steuergerät zur Steuerung eines Enspritzdruckaufbaus bei einem Start eines Verbrennungsmotors
DE19951132A1 (de) Verfahren zum Ablassen des Kraftstoffdrucks in einem rücklauffreien Kraftstoffversorgungssystem
DE102016214729B4 (de) Steuerung eines Vordrucks eines Niederdrucksystems eines Kraftfahrzeugs
EP3546738A1 (fr) Procédé de fonctionnement d'un moteur à combustion interne

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: 20020527

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

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50010188

Country of ref document: DE

Date of ref document: 20050602

Kind code of ref document: P

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

ET Fr: translation filed
26N No opposition filed

Effective date: 20060130

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: 20151215

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50010188

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: 20170503