EP1215387A2 - Steuervorrichtung zur Kraftstoffdruckregelung - Google Patents
Steuervorrichtung zur Kraftstoffdruckregelung Download PDFInfo
- Publication number
- EP1215387A2 EP1215387A2 EP01127685A EP01127685A EP1215387A2 EP 1215387 A2 EP1215387 A2 EP 1215387A2 EP 01127685 A EP01127685 A EP 01127685A EP 01127685 A EP01127685 A EP 01127685A EP 1215387 A2 EP1215387 A2 EP 1215387A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- control device
- fuel
- pressure
- exhaust gas
- control
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 35
- 239000000523 sample Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
Images
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
- F02D41/3082—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
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- 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
Definitions
- the invention relates to a control device for fuel pressure regulation according to the preamble of claim 1.
- DE 196 22 176 C1 describes a monitoring device for a Fuel filter known in which the by adding an Fuel pressure occurring pressure drop detected by means of a lambda probe becomes. There will be a corresponding irregularity in the exhaust gas composition is determined, it is compared whether this irregularity in the Operation of all cylinders occurs. Is a clogging of the fuel filter is found, this is displayed.
- the present invention is directed to an application in which the Pressure in the fuel circuit depending on the current operating point is regulated.
- the Fuel lines usually provided at least one pressure sensor, which determines an actual pressure value. By comparing the pressure setpoint and The actual pressure value can then be regulated.
- the object of the present invention is to use such separate pressure sensor in a fuel supply system for one Avoid internal combustion engine.
- the fuel pressure becomes dependent on the operating point and in Dependence on an exhaust gas probe signal selected.
- the amount of fuel is not regulated in the present case, but a parameter that determines the amount of fuel affected.
- the present control device for fuel pressure control can be used spark-ignited, but also used for self-ignited engines , where a targeted, adaptively regulated variation of the Pump pressure should take place.
- the pump pressure can be regulated via external components, such as a Fuel pressure regulator or a pressure relief valve, but it can also by regulating the pump itself, on electrical or mechanical way. For example, the tension or that Duty cycle for electrical control can be changed.
- the present invention allows for separate, pressure sensing Components, such as a fuel pressure sensor, are dispensed with. Instead, the information is one that already exists Exhaust gas lambda sensor used.
- the single drawing shows a simple block circuit diagram of an engine block 10 with an intake area 12 and an exhaust system 14.
- injection valves 16 1 to 16 4 are arranged in the individual supply channels, which receive fuel from a fuel pump 26 via a fuel line 18.
- the fuel pump 26 is connected to a fuel tank 29 via a line 28.
- the fuel pump 26 is operated electrically and is connected to a power supply with a power line 30.
- the operation of the electric fuel pump 26 is determined by means of a control device 22, from which it is acted upon.
- the control device 22 is also connected via control lines 20 1 to 20 4 to the associated injection valves 16 1 to 16 4 and determines the amount of fuel supplied in a known manner via the valve opening times.
- a lambda probe 24 is arranged in the exhaust line 14 and also outputs its signal to the control device 22.
- the control device 22 determines the opening times of the injection valves 16 1 to 16 4 from the signal of the lambda probe 24 and other input parameters E.
- the pump operation of the electric fuel pump 26 is regulated in a manner according to the invention as a function of the operating point - that is to say determined by input parameter E - and as a function of the lambda probe signal and using a map, not described in more detail, which is stored in the control device 22.
- the fuel pressure is set depending on the operating point and the lambda probe signal.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims (4)
- Steuervorrichtung zur Kraftstoffdruckregelung für ein Einspritzsystem eines Verbrennungsmotors umfassend eine elektrische Kraftstoffpumpe (26), die von einer Steuereinrichtung (22) beaufschlagt wird, und einer Abgas-Sonde (24), welche ein der Abgaszusammensetzung entsprechendes Signal erzeugt und der Steuereinrichtung (22) zur Verfügung stellt,
dadurch gekennzeichnet, dass die Steuereinrichtung (22) ausgebildet ist, um den Kraftstoffdruck durch geeignete Antsteuerung der Kraftstoffpunpe (26) in Abhängigkeit vom Abgas-Sonden-Signal betriebspunktabhängig zu wählen. - Steuervorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass die Druckveränderung durch separate Bauteile, wie einen Kraftstoffdruckregler oder ein Überdruckventil, herbeiführbar ist. - Steuervorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass die Druckveränderung durch eine regelnde Ansteuerung der elektrischen Kraftstoffpumpe (24) selbst herbeigeführt wird. - Steuervorrichtung nach Anspruch 3,
dadurch gekennzeichnet, dass die Pumpenansteuerung über eine Spannungsregelung oder eine Regelung eines Tastverhältnisses erfolgt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2000162964 DE10062964A1 (de) | 2000-12-16 | 2000-12-16 | Steuervorrichtung zur Kraftstoffdruckregelung |
| DE10062964 | 2000-12-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1215387A2 true EP1215387A2 (de) | 2002-06-19 |
| EP1215387A3 EP1215387A3 (de) | 2004-01-02 |
Family
ID=7667566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01127685A Ceased EP1215387A3 (de) | 2000-12-16 | 2001-11-21 | Steuervorrichtung zur Kraftstoffdruckregelung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1215387A3 (de) |
| DE (1) | DE10062964A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007062215B4 (de) | 2007-12-21 | 2018-05-30 | Volkswagen Ag | Verfahren zum Betreiben einer Brennkraftmaschine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4208002A1 (de) | 1992-03-13 | 1993-09-16 | Bosch Gmbh Robert | System zur steuerung einer brennkraftmaschine |
| DE19622176C1 (de) | 1996-06-01 | 1997-07-24 | Porsche Ag | Überwachungseinrichtung für einen Kraftstoffilter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05321738A (ja) * | 1992-05-19 | 1993-12-07 | Honda Motor Co Ltd | 燃圧レギュレータコントロールシステムの異常検知装置 |
| JPH08261044A (ja) * | 1995-03-20 | 1996-10-08 | Nippondenso Co Ltd | 内燃機関の燃料噴射制御装置 |
| DE19626537C1 (de) * | 1996-07-02 | 1997-09-18 | Daimler Benz Ag | Kraftstoffdruckregelvorrichtung für eine Kraftstoffeinspritzanlage |
| US6112731A (en) * | 1998-12-21 | 2000-09-05 | Ford Global Technologies, Inc. | Engine diagnostic method |
| SE514368C2 (sv) * | 1999-06-01 | 2001-02-12 | Volvo Personvagnar Ab | Förfarande och arrangemang för diagnos av givare i samband med styrning av en förbränningsmotor samt användning av nämnda arrangemang |
-
2000
- 2000-12-16 DE DE2000162964 patent/DE10062964A1/de not_active Withdrawn
-
2001
- 2001-11-21 EP EP01127685A patent/EP1215387A3/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4208002A1 (de) | 1992-03-13 | 1993-09-16 | Bosch Gmbh Robert | System zur steuerung einer brennkraftmaschine |
| DE19622176C1 (de) | 1996-06-01 | 1997-07-24 | Porsche Ag | Überwachungseinrichtung für einen Kraftstoffilter |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1215387A3 (de) | 2004-01-02 |
| DE10062964A1 (de) | 2002-06-20 |
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