EP1236891A3 - Apparatus for diagnosing a spark ignition engine - Google Patents

Apparatus for diagnosing a spark ignition engine Download PDF

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Publication number
EP1236891A3
EP1236891A3 EP02004575A EP02004575A EP1236891A3 EP 1236891 A3 EP1236891 A3 EP 1236891A3 EP 02004575 A EP02004575 A EP 02004575A EP 02004575 A EP02004575 A EP 02004575A EP 1236891 A3 EP1236891 A3 EP 1236891A3
Authority
EP
European Patent Office
Prior art keywords
diagnosing
spark plug
comparator
combustion engine
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.)
Granted
Application number
EP02004575A
Other languages
German (de)
French (fr)
Other versions
EP1236891A2 (en
EP1236891B1 (en
Inventor
Werner Bumen
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 EP1236891A2 publication Critical patent/EP1236891A2/en
Publication of EP1236891A3 publication Critical patent/EP1236891A3/en
Application granted granted Critical
Publication of EP1236891B1 publication Critical patent/EP1236891B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • F02P2017/006—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines using a capacitive sensor
    • 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
    • F02P2017/121—Testing characteristics of the spark, ignition voltage or current by measuring spark voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

Es wird eine Vorrichtung zur Diagnose einer fremdgezündeten Brennkraftmaschine vorgeschlagen. Die zur Entflammung eines in einen Zylinder der Brennkraftmaschine eingespritzen Kraftstoffs vorgesehene Zündkerze ist über eine potenzialtrennende Entkopplung (20) mit der Sekundärwicklung (14) der Zündspule (12) verbunden. Die an der Zündkerze (11) liegende Spannung (UZ) wird von einem Komparator (30) mit einem Schwellenwert (US) verglichen. Das Schaltsignal (UK) des Komparators (30) ist gewertet als ein Signal, das anzeigt, daß Kraftstoff nach dem Einspritzvorgang die Zündkerze (11) erreicht hat. Durch einen Vergleich mit bekannten Sollpositionen bezogen auf den Kurbelwellenwinkel oder bezogen auf Kurbelwellenwinkelbereiche ist eine Diganose möglich.

Figure 00000001
A device for diagnosing a spark-ignited internal combustion engine is proposed. The spark plug provided for igniting a fuel injected into a cylinder of the internal combustion engine is connected to the secondary winding (14) of the ignition coil (12) via a potential-separating decoupling (20). The voltage (UZ) applied to the spark plug (11) is compared by a comparator (30) with a threshold value (US). The switching signal (UK) of the comparator (30) is counted as a signal indicating that fuel has reached the spark plug (11) after the injection process. By comparison with known nominal positions with respect to the crankshaft angle or with respect to crankshaft angle ranges, a diganose is possible.
Figure 00000001
EP20020004575 2001-03-02 2002-02-28 Apparatus for diagnosing a spark ignition engine Expired - Lifetime EP1236891B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10110047 2001-03-02
DE2001110047 DE10110047A1 (en) 2001-03-02 2001-03-02 Device for diagnosing a spark ignition internal combustion engine

Publications (3)

Publication Number Publication Date
EP1236891A2 EP1236891A2 (en) 2002-09-04
EP1236891A3 true EP1236891A3 (en) 2005-04-06
EP1236891B1 EP1236891B1 (en) 2006-06-21

Family

ID=7676053

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020004575 Expired - Lifetime EP1236891B1 (en) 2001-03-02 2002-02-28 Apparatus for diagnosing a spark ignition engine

Country Status (2)

Country Link
EP (1) EP1236891B1 (en)
DE (2) DE10110047A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4207140A1 (en) * 1991-03-07 1992-09-10 Honda Motor Co Ltd MISTAKING DETECTOR SYSTEM FOR COMBUSTION ENGINES
DE4236878A1 (en) * 1992-10-31 1994-05-05 Bosch Gmbh Robert Device for detecting high voltage signals
US5495757A (en) * 1991-05-15 1996-03-05 Siemens Automotive S.A. Method and device for detection of ignition failures in an internal combustion engine cylinder
US6032650A (en) * 1997-05-12 2000-03-07 Mecel Ab Method for closed-loop control of injection timing in combustion engines
JP2000282871A (en) * 1999-03-30 2000-10-10 Toyota Motor Corp Cylinder fuel injection type spark ignition internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4207140A1 (en) * 1991-03-07 1992-09-10 Honda Motor Co Ltd MISTAKING DETECTOR SYSTEM FOR COMBUSTION ENGINES
US5495757A (en) * 1991-05-15 1996-03-05 Siemens Automotive S.A. Method and device for detection of ignition failures in an internal combustion engine cylinder
DE4236878A1 (en) * 1992-10-31 1994-05-05 Bosch Gmbh Robert Device for detecting high voltage signals
US6032650A (en) * 1997-05-12 2000-03-07 Mecel Ab Method for closed-loop control of injection timing in combustion engines
JP2000282871A (en) * 1999-03-30 2000-10-10 Toyota Motor Corp Cylinder fuel injection type spark ignition internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05) *

Also Published As

Publication number Publication date
DE10110047A1 (en) 2002-09-05
EP1236891A2 (en) 2002-09-04
DE50207241D1 (en) 2006-08-03
EP1236891B1 (en) 2006-06-21

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