WO2008113646A1 - Verfahren zur regelung eines einspritzsystems einer brennkraftmaschine - Google Patents
Verfahren zur regelung eines einspritzsystems einer brennkraftmaschine Download PDFInfo
- Publication number
- WO2008113646A1 WO2008113646A1 PCT/EP2008/051716 EP2008051716W WO2008113646A1 WO 2008113646 A1 WO2008113646 A1 WO 2008113646A1 EP 2008051716 W EP2008051716 W EP 2008051716W WO 2008113646 A1 WO2008113646 A1 WO 2008113646A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- value
- pump
- pressure accumulator
- internal combustion
- 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
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
- F02D41/3845—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
- 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
- F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative controller
-
- 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
- F02D2041/141—Introducing closed-loop corrections characterised by the control or regulation method using a feed-forward control element
-
- 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
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/31—Control of the fuel pressure
-
- 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
- F02M63/023—Means for varying pressure in common rails
Definitions
- the invention relates to a method for controlling an injection system of an internal combustion engine according to the features of the preamble of patent claim 1.
- Fuel injectors for operating an internal combustion engine have generally been known for many years.
- the fuel is supplied into the respective combustion chamber of the internal combustion engine by injectors, in particular by piezo injectors.
- the good of combustion is dependent on the pressure of a high-pressure accumulator upstream of the injectors.
- the pressure of this high pressure accumulator must be controlled. In this case, when using a high-pressure pump and a pressure accumulator for the fuel injection pressures of 1600 to 1800 bar can be achieved.
- the pressure control of the high pressure accumulator can be realized in different ways. This can vary depending on
- the high-pressure pump In the case of volume flow control, it must be taken into consideration that after a control intervention, the high-pressure pump must first be filled with fuel before fuel can be pumped again into the high-pressure accumulator, thus causing a rise in pressure in the high-pressure accumulator. The time it takes to fill the high-pressure pump with fuel, restricts the stability speed for stability reasons.
- the object underlying the present invention is now to take into account the time required for filling the high-pressure pump with fuel, in order to thus improve the regularity of the injection system.
- the advantages achieved by the invention are in particular that the regularity of the injection system can be improved by taking into account a pump efficiency in a pilot control, and thereby an improved emission behavior of the internal combustion engine is achieved.
- the pump efficiency is correlated with the time it takes to fill the pump with fuel. The pump efficiency is higher, the faster the pump is filled with fuel. In this case, the fuel supplied to the pump is controlled by a flow control valve located in front of the pump. Furthermore, by taking into account the pump efficiency let the rule good of
- FIG. 1 shows a block diagram of an injection system taking into account a pump efficiency
- Figure 2 a pressure curve in the high-pressure accumulator with and without consideration of the pump efficiency in the scheme.
- Figure 1 shows a block diagram of an injection system taking into account a pump efficiency.
- the injection system consists of a fuel tank 1, a low-pressure pump 2, the fuel from the tank calls, from a flow control valve 3 with return line 5 to the fuel tank 1, from a high-pressure pump 4, the fuel to a high-pressure accumulator 6 supplies, and injectors 7, 7th 'and 1' 'for injecting the fuel into a combustion chamber of the internal combustion engine, which is not shown in the drawing.
- the high-pressure accumulator 6 It can build up in the high-pressure accumulator 6 pressures up to 1800 bar. About injectors 7, 7 ', and I 1 ', the fuel from the high-pressure accumulator 6 can be injected into a combustion chamber.
- a volume flow control valve 3 with a return line 5 to the fuel tank is arranged between the low-pressure pump 2 and the high-pressure pump 4. With the help of the volume flow control valve 3, the suction volume of the high-pressure pump 4 is controlled and thus determines the pressure in the high-pressure accumulator 6.
- the pressure in the high-pressure accumulator 6 is measured continuously via a measuring device 200.
- This measured pressure serves as an input variable in a control unit 15 and for a pilot control 100.
- Another input variable of the control unit 15 is a predefinable setpoint pressure value psoll.
- the output signal Al of the control unit realized, for example, by a PID controller is fed to a computing unit 10.
- the feedforward control is composed of a plurality of pilot control units 11, 12, 13 and is intended to improve the controlled good of the injection system.
- the measured pressure in the high-pressure accumulator 6 as an input variable in the mutually parallel pilot units 11, 12, 13 a.
- Pilot control unit 11 takes into account the temperature-dependent leakage losses in the injection system. As input of the first pilot control unit 11, therefore, the fuel temperature T is supplied in the high-pressure accumulator. Furthermore, there is also an additional consideration of the leakage losses which change over time due to aging effects.
- the output size A2 of the first pre-control unit 11 is one of several input quantities for an adder unit 10 '.
- the second pilot control unit 12 takes into account the amount of fuel injected into the internal combustion engine via the injectors 7, 7 'and 7 ".
- the rotational speed n serves as a further input variable for the pilot control unit 12, the output variable A3 of which is also supplied to the adder unit 10 '.
- the third pilot control unit 13 takes into account the pressure changes which result in the high-pressure accumulator 6.
- the pressure rise or pressure drop in the high-pressure accumulator 6 is taken into account with this third pilot control unit 13.
- the output signal 4 of the third pilot control unit 13 also goes to the adder unit 10 '.
- the determination of the output signals A2, A3, A4 is based on stored tables or on the basis of approximate functions.
- the output signals A2, A3, A4 of the pilot control units 11, 12, 13 are then added in the adder unit 10 '. It has proved to be particularly advantageous that the output signals A2, A3, A4 are present as a volume flow.
- a pump efficiency is determined in the unit 14. there The pump efficiency can be determined by means of a stored table or an approximation function.
- the output signal A6 is added in the adding unit 10 with the output signal of the control unit 15, wherein the summand of the arithmetic unit 10 serves as a control variable of the volume flow control valve 3.
- FIG. 2 shows a pressure curve in the high-pressure accumulator with and without consideration of the pump efficiency in the control.
- the temporal pressure curve is plotted in the high-pressure accumulator.
- the signal S1 represents the actual pressure curve in the high-pressure accumulator without taking account of the pump efficiency in the control
- S2 represents the signal taking into account the pump efficiency value in the control.
- SO shows that from the time t1 an increase in pressure in the high-pressure accumulator from the pressure value p ⁇ to the pressure value pl is to take place. From the time t2, the pressure from the
- the actual pressure curve S1 also increases from the time t1 on, but can not keep the pressure value pl constant over a predetermined period, but falls off.
- the undershooting of the pressure curve at Sl is due to the high leakage losses and the low pump efficiency.
- the lower pump efficiency therefore results in that the high-pressure pump is not supplied with sufficient fuel due to the opening position of the volume flow control valve. Therefore, the pump can not reach the pressure value required in the high pressure accumulator. Therefore, in the next control step, the opening position of the volume flow control valve must also be increased. From time tl 'the volume flow control valve is opened so that a pressure increase takes place in the high-pressure accumulator.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/532,255 US8459231B2 (en) | 2007-03-22 | 2008-02-13 | Method for regulating an injection system of an internal combustion engine |
| CN200880009380.8A CN101641510B (zh) | 2007-03-22 | 2008-02-13 | 用于调节内燃机的喷射系统的方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007013772.0 | 2007-03-22 | ||
| DE102007013772.0A DE102007013772B4 (de) | 2007-03-22 | 2007-03-22 | Verfahren zur Regelung eines Einspritzsystems einer Brennkraftmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008113646A1 true WO2008113646A1 (de) | 2008-09-25 |
Family
ID=39428006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/051716 Ceased WO2008113646A1 (de) | 2007-03-22 | 2008-02-13 | Verfahren zur regelung eines einspritzsystems einer brennkraftmaschine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8459231B2 (de) |
| CN (1) | CN101641510B (de) |
| DE (1) | DE102007013772B4 (de) |
| WO (1) | WO2008113646A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8459231B2 (en) | 2007-03-22 | 2013-06-11 | Continental Automotive Gmbh | Method for regulating an injection system of an internal combustion engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014220932B4 (de) * | 2014-10-15 | 2020-02-06 | Continental Automotive Gmbh | Verfahren zum Betreiben eines Kraftstoffversorgungssystems für eine Brennkraftmaschine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548278A1 (de) * | 1995-12-22 | 1997-06-26 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
| DE19731994A1 (de) * | 1997-07-25 | 1999-01-28 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
| DE10016900A1 (de) * | 2000-04-05 | 2001-11-08 | Bosch Gmbh Robert | Verfahren zur Regelung des in einem Druckspeicher eines Kraftstoffzumesssystems herrschenden Speicherdrucks |
| DE10162989C1 (de) * | 2001-12-20 | 2003-10-09 | Siemens Ag | Schaltungsanordnung zum Regeln einer regelbaren Kraftstoffpumpe, Verfahren zum Regeln einer Förderleistung und Verfahren zum Überprüfen der Funktionsfähigkeit einer regelbaren Kraftstoffpumpe |
| WO2006117287A1 (de) * | 2005-05-03 | 2006-11-09 | Siemens Vdo Automotive Ag | Verfahren zum steuern einer kraftstoffzuführeinrichtung einer brennkraftmaschine |
| DE102005026441A1 (de) * | 2005-06-08 | 2006-12-14 | Siemens Ag | Verfahren zur Adaption des Vorsteuerkennfeldes einer volumenstromgeregelten Diesel-Common-Rail Pumpe |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4774383A (en) | 1985-09-27 | 1988-09-27 | Dalton Murphy L Jun | Water tight seals for electronics package |
| FR2596231B1 (fr) | 1986-03-21 | 1993-01-29 | Cit Alcatel | Boitier pour circuits electroniques |
| FR2790283B1 (fr) * | 1999-02-26 | 2002-01-04 | Magneti Marelli France | Procede et systeme de controle de la pression d'une pompe a carburant a haute pression pour l'alimentation d'un moteur a combustion interne |
| DE19916100A1 (de) * | 1999-04-09 | 2000-10-12 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
| DE10112702A1 (de) * | 2001-03-16 | 2002-10-02 | Bosch Gmbh Robert | Verfahren zum Betreiben einer Brennkraftmaschine mit einem Kraftstoffzumesssystem |
| US7632920B2 (en) * | 2003-04-10 | 2009-12-15 | Schering Corporation | Soluble, stable form of HDM2, crystalline forms thereof and methods of use thereof |
| JP2005233127A (ja) * | 2004-02-20 | 2005-09-02 | Mitsubishi Electric Corp | 内燃機関の燃料圧制御装置 |
| JP4424161B2 (ja) * | 2004-11-08 | 2010-03-03 | 株式会社デンソー | コモンレール式燃料噴射装置 |
| DE102007013772B4 (de) | 2007-03-22 | 2015-06-25 | Continental Automotive Gmbh | Verfahren zur Regelung eines Einspritzsystems einer Brennkraftmaschine |
| GB2460680B (en) | 2008-06-05 | 2012-03-07 | Vetco Gray Controls Ltd | Subsea electronics module |
-
2007
- 2007-03-22 DE DE102007013772.0A patent/DE102007013772B4/de not_active Expired - Fee Related
-
2008
- 2008-02-13 US US12/532,255 patent/US8459231B2/en not_active Expired - Fee Related
- 2008-02-13 WO PCT/EP2008/051716 patent/WO2008113646A1/de not_active Ceased
- 2008-02-13 CN CN200880009380.8A patent/CN101641510B/zh not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548278A1 (de) * | 1995-12-22 | 1997-06-26 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
| DE19731994A1 (de) * | 1997-07-25 | 1999-01-28 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
| DE10016900A1 (de) * | 2000-04-05 | 2001-11-08 | Bosch Gmbh Robert | Verfahren zur Regelung des in einem Druckspeicher eines Kraftstoffzumesssystems herrschenden Speicherdrucks |
| DE10162989C1 (de) * | 2001-12-20 | 2003-10-09 | Siemens Ag | Schaltungsanordnung zum Regeln einer regelbaren Kraftstoffpumpe, Verfahren zum Regeln einer Förderleistung und Verfahren zum Überprüfen der Funktionsfähigkeit einer regelbaren Kraftstoffpumpe |
| WO2006117287A1 (de) * | 2005-05-03 | 2006-11-09 | Siemens Vdo Automotive Ag | Verfahren zum steuern einer kraftstoffzuführeinrichtung einer brennkraftmaschine |
| DE102005026441A1 (de) * | 2005-06-08 | 2006-12-14 | Siemens Ag | Verfahren zur Adaption des Vorsteuerkennfeldes einer volumenstromgeregelten Diesel-Common-Rail Pumpe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8459231B2 (en) | 2007-03-22 | 2013-06-11 | Continental Automotive Gmbh | Method for regulating an injection system of an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101641510B (zh) | 2012-12-05 |
| CN101641510A (zh) | 2010-02-03 |
| US20100139620A1 (en) | 2010-06-10 |
| US8459231B2 (en) | 2013-06-11 |
| DE102007013772B4 (de) | 2015-06-25 |
| DE102007013772A1 (de) | 2008-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102008036122B4 (de) | Verfahren zur Adaption der Leistung einer Kraftstoffvorförderpumpe eines Kraftfahrzeugs | |
| DE19731994B4 (de) | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine | |
| DE102007005685B4 (de) | Verfahren zur Bestimmung einer Regelgröße für eine Druckregelung eines Hochdruckspeichers in einem Einspritzsystem | |
| DE10029349C2 (de) | Kraftstoffeinspritz-Steueranordnung für einen Motor mit Zylindereinspritzung | |
| DE102008001240A1 (de) | Verfahren und Vorrichtung zur Steuerung eines Kraftstoffversorgungssystems | |
| WO2009074399A1 (de) | Kraftstoffdruckregelsystem | |
| DE102008055747B4 (de) | Verfahren und Vorrichtung zum Betreiben einer Einspritzanlage für eine Brennkraftmaschine | |
| DE102004044450B3 (de) | Verfahren und Vorrichtung zur Leerhuberkennung von Injektoren | |
| DE102008035985B4 (de) | Verfahren und Vorrichtung zur Regelung des Kraftstoffdruckes im Druckspeicher eines Common-Rail-Einspritzsystems | |
| DE10257655A1 (de) | Akkumulations-Kraftstoffeinspritzvorrichtung | |
| EP1825125B1 (de) | Verfahren zum betreiben eines kraftstoffsystems einer brennkraftmaschine | |
| DE102008017160B3 (de) | Verfahren zum Bestimmen des effektiven Kompressibilitätsmoduls eines Einspritzsystems | |
| DE10341775A1 (de) | Kraftstoffeinspritzsystem der Speicherbauart | |
| WO2008113646A1 (de) | Verfahren zur regelung eines einspritzsystems einer brennkraftmaschine | |
| WO2001069067A1 (de) | Verfahren zum betreiben einer brennkraftmaschine | |
| EP3763933B1 (de) | Verfahren zur volumenstrombasierten pumpensynchronen, insbesondere zylinderselektiven raildruckregelung für ein kraftstoffversorgungssystem einer brennkraftmaschine mit stromerfassung und stromregelung der stellglieder der raildruckregelung | |
| DE10155249C1 (de) | Einspritzanlage sowie Verfahren zur Regelung einer Kraftstoffpunpe | |
| EP1377736B1 (de) | Verfahren zum betreiben einer brennkraftmaschine mit einem kraftstoffzumesssystem | |
| DE10305525B4 (de) | Verfahren und Vorrichtung zur Adaption der Druckwellenkorrektur in einem Hochdruck-Einspritzsystem eines Kraftfahrzeuges im Fahrbetrieb | |
| DE10018050C2 (de) | Verfahren zum Betreiben einer Brennkraftmaschine | |
| WO2008090135A1 (de) | Verfahren zur ermittlung eines unkontrollierten beschleunigens einer brennkraftmaschine. | |
| DE19946908A1 (de) | Verfahren zum Abbau des Rail-Drucks in einem Common-Rail-System für Brennkraftmaschinen | |
| DE102010004215A1 (de) | Vorrichtung zur Verhinderung des Absterbens des Motors bei einem mit einem Dieseleinspritzsystem ausgestatteten Fahrzeug | |
| DE102011006203B4 (de) | Regelverfahren zum Einstellen eines Drucks in einem Speichereinspritzsystem einer Brennkraftmaschine | |
| DE3704942A1 (de) | Verfahren zum dosieren von brennstoff fuer eine gemischverdichtende brennkraftmaschine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 200880009380.8 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08708938 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 12532255 Country of ref document: US |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 08708938 Country of ref document: EP Kind code of ref document: A1 |