EP0472544B1 - Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine - Google Patents

Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine Download PDF

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Publication number
EP0472544B1
EP0472544B1 EP90906865A EP90906865A EP0472544B1 EP 0472544 B1 EP0472544 B1 EP 0472544B1 EP 90906865 A EP90906865 A EP 90906865A EP 90906865 A EP90906865 A EP 90906865A EP 0472544 B1 EP0472544 B1 EP 0472544B1
Authority
EP
European Patent Office
Prior art keywords
sensor according
sensor
sparking 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.)
Expired - Lifetime
Application number
EP90906865A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0472544A1 (de
Inventor
Herbert Arnold
Michael Horbelt
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 EP0472544A1 publication Critical patent/EP0472544A1/de
Application granted granted Critical
Publication of EP0472544B1 publication Critical patent/EP0472544B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 negatively and not exactly control 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
  • 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 Sensor is used.
  • a candle block 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)
EP90906865A 1989-05-20 1990-05-15 Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine Expired - Lifetime EP0472544B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3916547A DE3916547A1 (de) 1989-05-20 1989-05-20 Sensor zur erfassung des verbrennungsverlaufs in einer brennkraftmaschine
DE3916547 1989-05-20
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 EP0472544A1 (de) 1992-03-04
EP0472544B1 true 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 (ja)
EP (1) EP0472544B1 (ja)
JP (1) JPH04505383A (ja)
KR (1) KR920702054A (ja)
DE (2) DE3916547A1 (ja)
WO (1) WO1990014705A1 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180983A (en) * 1990-09-27 1993-01-19 Mitsubishi Denki K.K. Ignition plug for an internal combustion engine provided with an ionization current detector electrode
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 (en) * 2004-07-06 2006-01-11 C.R.F. Società Consortile per Azioni Method and device for detecting unburned gases and particulate in the flow of the exhaust gases of an internal combustion engine
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE59008543D1 (de) 1995-03-30
DE3916547A1 (de) 1990-11-22
WO1990014705A1 (de) 1990-11-29
KR920702054A (ko) 1992-08-12
EP0472544A1 (de) 1992-03-04
JPH04505383A (ja) 1992-09-17
US5237280A (en) 1993-08-17

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