EP0472544A1 - Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine. - Google Patents
Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine.Info
- Publication number
- EP0472544A1 EP0472544A1 EP90906865A EP90906865A EP0472544A1 EP 0472544 A1 EP0472544 A1 EP 0472544A1 EP 90906865 A EP90906865 A EP 90906865A EP 90906865 A EP90906865 A EP 90906865A EP 0472544 A1 EP0472544 A1 EP 0472544A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor according
- sensor
- spark plug
- electrode
- measuring
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/40—Sparking plugs structurally combined with other devices
-
- 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
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
-
- 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
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
Definitions
- the invention relates to a sensor according to the preamble of the main claim.
- Spark plugs are known in which the knocking of an internal combustion engine is detected by means of knock sensors and a corresponding evaluation circuit.
- These sensors can z. B. be arranged in the housing of the spark plug or attached as pressure transducer rings in the clamping area of the spark plugs. In all of these configurations, however, the ground electrode of the spark plug is designed as an extension of the housing.
- These solutions are very complex and expensive.
- external signals such as. B. recorded the rattling of the valves. An evaluation of the ignition current in these solutions is made more difficult because, if the spark plug is screwed in, the heat value of the engine block would have a negative and not precisely controllable effect on the course of the measurement curve.
- the sensor according to the invention with the characterizing features of the main claim has the advantage that, by measuring the ignition current, information about the combustion, misfires during combustion and damage of various types, e.g. B. dropped candle connector is possible. Ignition monitoring is possible, and the quality of the mixture ignition or the combustion process can be assessed.
- the sintered mass can be produced in one operation as before.
- the thermal contact from the outer electrode to the screwing-in point can be controlled in a simple manner and determined according to the operating conditions. An extension of the sleeve into the dead space of the spark plug enables electrical contact below the leakage current barrier.
- FIG. 1 shows a longitudinal section through the part of a sensor according to the invention on the combustion chamber side and FIGS. 2, 3 and 4 each show a modification of the exemplary embodiment according to FIG. 1.
- 10 denotes the screw-in part of a spark plug-like housing, which is used to hold an inventive one Sensor is used.
- a candle stone 12 is arranged in its longitudinal axis, in its central longitudinal bore 13 in turn there is a central electrode 14.
- the center electrode 14 rests on a shoulder 15 and has play in the region of the longitudinal bore 13.
- a wire 17 is introduced as the ground electrode in the candle stone 12, which wire is bent in the region of the dead space 18 and outside the screw-in part 10 as a hook electrode toward the center electrode 14.
- the wire 17 is led out of the candle stone 12 above the screw-in part 10 and connected to ground via a measuring element 19.
- the center electrode 14 can be connected to the screw-in part 10 made of metallic material.
- the ground electrode 14 can also be designed as a sleeve 22. It is also led into the dead space 18, but only protrudes from the dead space 18 in the area of an extension 23 serving as a hook electrode or as a plurality of hook electrodes. This enables electrical contact below the leakage current barrier.
- the candle stone 12 is made of sintered material in a conventionally known manner.
- the sleeve 22 can be designed like a lattice. This enables the sintering stone 12 and the ground electrode to be produced in one production step.
- the sleeve 22 is placed in the still green sintered body and then sintered.
- the thermal contact between the ground electrode and the screw-in part 10 can be controlled by the thickness of the region of the candle stone 12 that is formed here.
- the measuring resistor 19a is built directly into the plug connector 25. As a result, the measuring resistor 19a is automatically when the plug connector 25 is plugged onto the Housing connected to ground, ie either connected to the spark plug housing or to the engine block.
- the measurement signal is related to a separate mass.
- the two connection points 26, 27 of the resistor 19b are led through the plug connector 25 to the outside.
- There the electrical signal can be tapped in the form of a measuring voltage based on the motor mass. Any conventionally known resistance element for determining the voltage can be used as the measuring element. Information about the ignition process is possible via the tapped measuring voltage. From the course of the measuring voltage, the ignition can be monitored and the quality of the mixture ignition can be assessed.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spark Plugs (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3916547 | 1989-05-20 | ||
DE3916547A DE3916547A1 (de) | 1989-05-20 | 1989-05-20 | Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine |
PCT/DE1990/000354 WO1990014705A1 (de) | 1989-05-20 | 1990-05-15 | Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0472544A1 true EP0472544A1 (de) | 1992-03-04 |
EP0472544B1 EP0472544B1 (de) | 1995-02-22 |
Family
ID=6381110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90906865A Expired - Lifetime EP0472544B1 (de) | 1989-05-20 | 1990-05-15 | Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US5237280A (de) |
EP (1) | EP0472544B1 (de) |
JP (1) | JPH04505383A (de) |
KR (1) | KR920702054A (de) |
DE (2) | DE3916547A1 (de) |
WO (1) | WO1990014705A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4132285A1 (de) * | 1990-09-27 | 1992-04-09 | Mitsubishi Electric Corp | Zuendkerze fuer eine brennkraftmaschine, die mit einer ionisationsstrom-detektorelektrode ausgestattet ist |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4143480C2 (de) * | 1990-09-27 | 1996-06-13 | Mitsubishi Electric Corp | Zündkerze mit einer Ionisationsstrom-Detektorelektrode |
US5734094A (en) * | 1993-05-31 | 1998-03-31 | Ngk Spark Plug Co., Ltd. | Ion current detector device for use in an internal combustion engine |
US5383350A (en) * | 1994-01-13 | 1995-01-24 | Gas Research Institute | Sensor and method for detecting misfires in internal combustion engines |
US5492007A (en) * | 1995-01-30 | 1996-02-20 | Chrysler Corporation | Misfire detection in a spark ignition engine |
SE513432C2 (sv) | 1997-12-01 | 2000-09-11 | Volvo Ab | Förfarande för att mäta partikelhalten i avgaserna hos en förbränningsmotor |
DE19931979C2 (de) * | 1999-07-09 | 2002-12-12 | Audi Ag | Zündkerzenstecker |
US6935323B2 (en) * | 2003-07-01 | 2005-08-30 | Caterpillar Inc | Low current extended duration spark ignition system |
EP1615020A1 (de) * | 2004-07-06 | 2006-01-11 | C.R.F. Società Consortile per Azioni | Verfahren und Vorrichtung zur Bestimmung von unverbrannten Gasen und Partikeln in den Abgasen einer Brennkraftmaschine |
US9869244B2 (en) * | 2005-10-31 | 2018-01-16 | Warren Engine Company, Inc. | Ignition source adapted for positioning within a combustion chamber |
US20070261471A1 (en) * | 2006-05-09 | 2007-11-15 | Tomonori Kondo | Soot sensor |
JP2008032686A (ja) * | 2006-07-03 | 2008-02-14 | Ngk Spark Plug Co Ltd | 煤センサ |
ITMI20111896A1 (it) | 2011-10-19 | 2013-04-20 | St Microelectronics Srl | Metodo migliorato di rilevazione di una corrente di ionizzazione all'ignizione in motori a combustione interna e relative strutture di candele |
DE102018201057A1 (de) * | 2018-01-24 | 2019-07-25 | Robert Bosch Gmbh | Zündkerze mit Selbstdiagnose und Hochspannungskabel zur Selbstdiagnose einer Zündkerze sowie Verfahren zur Selbstdiagnose einer Zündkerze |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2969500A (en) * | 1957-08-02 | 1961-01-24 | Frank S Andert | Spark plug and ignition indicator system therefor |
US3343366A (en) * | 1958-11-25 | 1967-09-26 | North American Aviation Inc | Spark discharge monitoring device |
US2963620A (en) * | 1959-08-27 | 1960-12-06 | Gen Lab Associates Inc | Sensing igniter |
US3235763A (en) * | 1960-09-15 | 1966-02-15 | Gen Motors Corp | Igniter plug with spark-sensing probe |
US3238447A (en) * | 1961-08-15 | 1966-03-01 | Gen Motors Corp | Igniter plug with spark-sensing means |
-
1989
- 1989-05-20 DE DE3916547A patent/DE3916547A1/de not_active Withdrawn
-
1990
- 1990-05-15 JP JP2507153A patent/JPH04505383A/ja active Pending
- 1990-05-15 DE DE59008543T patent/DE59008543D1/de not_active Expired - Fee Related
- 1990-05-15 US US07/768,309 patent/US5237280A/en not_active Expired - Fee Related
- 1990-05-15 KR KR1019910701439A patent/KR920702054A/ko not_active Application Discontinuation
- 1990-05-15 EP EP90906865A patent/EP0472544B1/de not_active Expired - Lifetime
- 1990-05-15 WO PCT/DE1990/000354 patent/WO1990014705A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9014705A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4132285A1 (de) * | 1990-09-27 | 1992-04-09 | Mitsubishi Electric Corp | Zuendkerze fuer eine brennkraftmaschine, die mit einer ionisationsstrom-detektorelektrode ausgestattet ist |
Also Published As
Publication number | Publication date |
---|---|
DE59008543D1 (de) | 1995-03-30 |
DE3916547A1 (de) | 1990-11-22 |
EP0472544B1 (de) | 1995-02-22 |
US5237280A (en) | 1993-08-17 |
KR920702054A (ko) | 1992-08-12 |
WO1990014705A1 (de) | 1990-11-29 |
JPH04505383A (ja) | 1992-09-17 |
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