WO2000037782A1 - Verfahren zum freibrennen von zündkerzen im schichtbetrieb - Google Patents
Verfahren zum freibrennen von zündkerzen im schichtbetrieb Download PDFInfo
- Publication number
- WO2000037782A1 WO2000037782A1 PCT/DE1999/003874 DE9903874W WO0037782A1 WO 2000037782 A1 WO2000037782 A1 WO 2000037782A1 DE 9903874 W DE9903874 W DE 9903874W WO 0037782 A1 WO0037782 A1 WO 0037782A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spark
- internal combustion
- burning
- combustion engine
- ignited
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
- F02B17/005—Engines characterised by means for effecting stratification of charge in cylinders having direct injection in the combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P9/00—Electric spark ignition control, not otherwise provided for
- F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
- F02P9/007—Control of spark intensity, intensifying, lengthening, suppression by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition
Definitions
- the present invention relates to a method for burning spark plugs for an internal combustion engine, in which an injection is carried out in a shift operation.
- the entire combustion chamber is filled homogeneously with a stoichiometric air / fuel mixture, which is ignited by the ignition spark at the time of ignition.
- the problem underlying the present invention generally consists in the fact that soot builds up on the
- Spark plugs inevitably form shunts during operation that worsen sparking.
- this problem is tackled with sliding spark candles, which support the burning of the isolator by sparking.
- the inventive method for burning spark plugs with the features of claim 1 has the advantage over the known approaches that the phase of the gas change and possibly. also the phase of the beginning compression, in which the combustion chamber is filled with a non-ignitable gas content, eg air, for the combustion of soot. bridge and / or soot deposits on the spark plug can be used.
- a non-ignitable gas content eg air
- the idea on which the present invention is based is that during the phase in which the combustion chamber is filled with a non-ignitable gas content, e.g. the intake phase, one or more additional sparks are ignited to burn off a relevant spark plug.
- the additional spark is ignited in the intake phase, and preferably at the end of the intake phase.
- This has the advantage that there is a low pressure in the combustion chamber towards the end of the suction and there is sufficient air filling, which causes little spark plug wear due to the additional spark.
- an AC ignition system is used in the internal combustion engine. This has the advantage that the energy supply time and the duration of the energy supply can be easily controlled since no charging time is required for the coil.
- a measurement of at least one engine parameter is carried out and the time and / or the number and / or the energy supply duration of the additional spark or spark is controlled based on the measurement result. So the free burning can be carried out depending on the engine condition.
- the shunt resistance of the spark plug is measured.
- the free burning can only be carried out when the shunt resistance has become too low.
- gasoline direct injection is used for the internal combustion engine.
- a diesel direct injection is used for the internal combustion engine.
- FIG. 1 shows a flow chart to explain an exemplary embodiment of the method according to the present invention.
- a gasoline direct injection in which an injection is carried out in a shift operation, and an AC ignition system are used for the internal combustion engine.
- the combustion chamber is filled with air during the intake phase, ie with a non-ignitable gas content. This only changes when the gasoline injection is carried out in the compression phase.
- FIG. 1 shows a flow chart to explain the exemplary embodiment of the method according to the present invention.
- This flow chart shows in a very simplified form a subroutine that is executed, for example, in the control unit of the internal combustion engine.
- the shunt resistance R N of all spark plugs is measured continuously during operation. Based on the measurement result, the point in time, the number and the duration of energy supply of the additional spark or spark are controlled according to a scheme which is predetermined and stored in the control unit. In addition to the shunt resistance, such a scheme may include other parameters such as speed, load, age of the spark plugs, etc.
- step S20 determines whether the shunt resistance of a spark plug in question is above a predetermined value R N ⁇ .
- the additional spark for burning the spark plug in question is ignited at the end of the intake phase if and as long as this criterion is not met.
- step S30 or S40 the subroutine is ended.
- any ignition system can also be used to carry out the method according to the invention.
- the additional spark was ignited at the end of the intake phase in the above example, it can in principle be ignited at any other time if the gas content of the combustion chamber cannot be ignited and the ignition system allows ignition, for example at the beginning of the compression phase.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020007009082A KR20010041047A (ko) | 1998-12-22 | 1999-12-03 | 층상 급기 모드에서 스파크 플러그를 번오프하는 방법 |
EP99964393A EP1056936B1 (de) | 1998-12-22 | 1999-12-03 | Verfahren zum freibrennen von zündkerzen im schichtbetrieb |
DE59904729T DE59904729D1 (de) | 1998-12-22 | 1999-12-03 | Verfahren zum freibrennen von zündkerzen im schichtbetrieb |
JP2000589817A JP2002533604A (ja) | 1998-12-22 | 1999-12-03 | 層状駆動時の点火プラグの自己清浄燃焼方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19859311A DE19859311A1 (de) | 1998-12-22 | 1998-12-22 | Verfahren zum Freibrennen von Zündkerzen im Schichtbetrieb |
DE19859311.2 | 1998-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000037782A1 true WO2000037782A1 (de) | 2000-06-29 |
Family
ID=7892152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/003874 WO2000037782A1 (de) | 1998-12-22 | 1999-12-03 | Verfahren zum freibrennen von zündkerzen im schichtbetrieb |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1056936B1 (de) |
JP (1) | JP2002533604A (de) |
KR (1) | KR20010041047A (de) |
DE (2) | DE19859311A1 (de) |
WO (1) | WO2000037782A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4733670B2 (ja) * | 2007-05-24 | 2011-07-27 | 日本特殊陶業株式会社 | 内燃機関用点火装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059079A (en) * | 1974-10-08 | 1977-11-22 | Nippondenso Co., Ltd. | Internal combustion engine |
EP0305348A1 (de) * | 1987-08-28 | 1989-03-01 | Saab-Scania Aktiebolag | Verfahren und Einrichtung zum Verbessern der Startfähigkeit eines Verbrennungsmotors nach einem misslungenen Versuch, den Motor zu starten |
GB2255372A (en) * | 1991-05-01 | 1992-11-04 | Ford Motor Co | I.c.engine spark ignition system |
US5913302A (en) * | 1997-09-19 | 1999-06-22 | Brunswick Corporation | Ignition coil dwell time control system |
-
1998
- 1998-12-22 DE DE19859311A patent/DE19859311A1/de not_active Withdrawn
-
1999
- 1999-12-03 DE DE59904729T patent/DE59904729D1/de not_active Expired - Fee Related
- 1999-12-03 KR KR1020007009082A patent/KR20010041047A/ko not_active Application Discontinuation
- 1999-12-03 JP JP2000589817A patent/JP2002533604A/ja active Pending
- 1999-12-03 WO PCT/DE1999/003874 patent/WO2000037782A1/de not_active Application Discontinuation
- 1999-12-03 EP EP99964393A patent/EP1056936B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059079A (en) * | 1974-10-08 | 1977-11-22 | Nippondenso Co., Ltd. | Internal combustion engine |
EP0305348A1 (de) * | 1987-08-28 | 1989-03-01 | Saab-Scania Aktiebolag | Verfahren und Einrichtung zum Verbessern der Startfähigkeit eines Verbrennungsmotors nach einem misslungenen Versuch, den Motor zu starten |
GB2255372A (en) * | 1991-05-01 | 1992-11-04 | Ford Motor Co | I.c.engine spark ignition system |
US5913302A (en) * | 1997-09-19 | 1999-06-22 | Brunswick Corporation | Ignition coil dwell time control system |
Also Published As
Publication number | Publication date |
---|---|
DE19859311A1 (de) | 2000-06-29 |
EP1056936A1 (de) | 2000-12-06 |
DE59904729D1 (de) | 2003-04-30 |
JP2002533604A (ja) | 2002-10-08 |
KR20010041047A (ko) | 2001-05-15 |
EP1056936B1 (de) | 2003-03-26 |
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