IT1260957B - Procedimento e sistema per la rilevazione di mancate combustioni in motori a combustione interna. - Google Patents

Procedimento e sistema per la rilevazione di mancate combustioni in motori a combustione interna.

Info

Publication number
IT1260957B
IT1260957B ITTO930581A ITTO930581A IT1260957B IT 1260957 B IT1260957 B IT 1260957B IT TO930581 A ITTO930581 A IT TO930581A IT TO930581 A ITTO930581 A IT TO930581A IT 1260957 B IT1260957 B IT 1260957B
Authority
IT
Italy
Prior art keywords
engine
combustion
internal combustion
comparison
pp1i
Prior art date
Application number
ITTO930581A
Other languages
English (en)
Inventor
Mario Palazzetti
Original Assignee
Fiat Ricerche
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 Fiat Ricerche filed Critical Fiat Ricerche
Priority to ITTO930581A priority Critical patent/IT1260957B/it
Publication of ITTO930581A0 publication Critical patent/ITTO930581A0/it
Priority to EP94112014A priority patent/EP0637738B1/en
Priority to ES94112014T priority patent/ES2114636T3/es
Priority to DE69409308T priority patent/DE69409308T2/de
Priority to US08/285,358 priority patent/US5515281A/en
Publication of ITTO930581A1 publication Critical patent/ITTO930581A1/it
Application granted granted Critical
Publication of IT1260957B publication Critical patent/IT1260957B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/11—Testing internal-combustion engines by detecting misfire
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

A partire da una sequenza di valori della coppia indicata (Ci) rilevati per ciascuna combustione attesa nel motore viene generato, come combinazione di almeno due valori successivi di detta sequenza, un segnale di ciclicità (Di). Il valore di picco (PP1i) di detto segnale di ciclicità viene quindi confrontato con una soglia di confronto (Ca) scelta di preferenza proporzionale alla durata di iniezione del carburante nei cilindri. La mancata combustione viene identificata in preferenza di un esito del confronto fra il suddetto valore di picco (PP1i) di detta soglia di confronto (Ca) diverso dall'esito del confronto in presenza del regolare funzionamento del motore (M).(Figure 2 e 3).Campo dell'invenzione La presente invenzione affronta in generale il problema di rilevare le mancate combustioni ("misfire" o "misfiring") nel funzionamento di un motore a combustione interna, ad esempio nei motori a combustione interna montati a bordo di autoveicoli, quali autovetture.Col termine mancata combustione (o misfire) si indica una situazione anomala nel normale funzionamento del motore.La miscela aria-benzina immessa nel cilindro non genera la normale reazione chimica di un propulsore a scoppio , ma viene espulsa completamente o parzialmente incombusta nello scarico. Questo genera come effetto immediato una perdita istantanea di coppia del motore.La miscela incombusta arriva allo scarico dove brucia, provocando l'innalzamento della temperatura della marmitta.Nel caso di motori con marmitta catalitica, questo
ITTO930581A 1993-08-04 1993-08-04 Procedimento e sistema per la rilevazione di mancate combustioni in motori a combustione interna. IT1260957B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO930581A IT1260957B (it) 1993-08-04 1993-08-04 Procedimento e sistema per la rilevazione di mancate combustioni in motori a combustione interna.
EP94112014A EP0637738B1 (en) 1993-08-04 1994-08-02 A process and system for detecting misfiring in internal combustion engines
ES94112014T ES2114636T3 (es) 1993-08-04 1994-08-02 Procedimiento y sistema para la deteccion de fallos de encendido en motores de combustion interna.
DE69409308T DE69409308T2 (de) 1993-08-04 1994-08-02 Verfahren und System zur Erfassung von Verbrennungsaussetzern bei Brennkraftmotoren
US08/285,358 US5515281A (en) 1993-08-04 1994-08-03 Process and system for detecting misfiring in internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930581A IT1260957B (it) 1993-08-04 1993-08-04 Procedimento e sistema per la rilevazione di mancate combustioni in motori a combustione interna.

Publications (3)

Publication Number Publication Date
ITTO930581A0 ITTO930581A0 (it) 1993-08-04
ITTO930581A1 ITTO930581A1 (it) 1995-02-04
IT1260957B true IT1260957B (it) 1996-04-29

Family

ID=11411665

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930581A IT1260957B (it) 1993-08-04 1993-08-04 Procedimento e sistema per la rilevazione di mancate combustioni in motori a combustione interna.

Country Status (5)

Country Link
US (1) US5515281A (it)
EP (1) EP0637738B1 (it)
DE (1) DE69409308T2 (it)
ES (1) ES2114636T3 (it)
IT (1) IT1260957B (it)

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FR2752018B1 (fr) * 1996-08-02 1998-09-04 Renault Procede de detection des rates de combustion d'un moteur a combustion interne
DE69626122T2 (de) * 1996-12-03 2003-08-21 C.R.F. S.C.P.A., Orbassano Verfahren zur Synchronisierung einer Brennkraftmaschine ohne Nockenwellenstandfühler
US6415656B1 (en) 2000-05-02 2002-07-09 Ford Global Technologies, Inc. Onboard diagnostic misfire detection monitor for internal combustion engines
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IT1321068B1 (it) * 2000-11-14 2003-12-30 Fiat Ricerche Metodo di diagnosi di perdite in un impianto di iniezione a collettore comune di un motore a combustione interna.
FR2844301B1 (fr) * 2002-09-05 2004-11-26 Renault Sa Procede de detection des defauts de combustion d'un moteur a combustion interne
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US7643912B2 (en) * 2004-11-01 2010-01-05 Hypertech, Inc. Programmable automotive computer method and apparatus with accelerometer input
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ATE386877T1 (de) * 2005-03-25 2008-03-15 Delphi Tech Inc Verfahren zur bestimmung von parametern eines einspritzsystems
JP4497376B2 (ja) * 2006-05-11 2010-07-07 ヤンマー株式会社 エンジン
DE102006054603A1 (de) * 2006-11-20 2008-05-21 Robert Bosch Gmbh Verfahren zur Diagnose einer Brennkraftmaschine
WO2008080378A1 (de) * 2007-01-05 2008-07-10 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Antriebsstrang
KR100859410B1 (ko) 2007-06-07 2008-09-22 콘티넨탈 오토모티브 시스템 주식회사 자동차의 연료 누설 진단 방법
ATE485202T1 (de) * 2007-06-18 2010-11-15 Schaeffler Technologies Gmbh Bestimmung eines motormomentfehlers während eines motormomenteneingriffs
US8046155B2 (en) * 2009-02-13 2011-10-25 Denso Corporation Method and apparatus for misfire detection using engine cycles at least subsequent to actual misfire event
ITTO20110770A1 (it) 2011-08-12 2013-02-13 Magneti Marelli Spa Metodo per il riconoscimento del fenomeno di misfire in un motore a combustione interna
US9527498B2 (en) 2012-08-29 2016-12-27 Ford Global Technologies, Llc Method to limit temperature increase in a catalyst and detect a restricted exhaust path in a vehicle
DE102015211593B4 (de) * 2015-06-23 2018-10-04 Schaeffler Technologies AG & Co. KG Verfahren und Vorrichtung zur Erkennung von Zündaussetzern einer Brennkraftmaschine
JP7327346B2 (ja) * 2020-10-16 2023-08-16 トヨタ自動車株式会社 内燃機関の制御装置

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US4550595A (en) * 1984-05-11 1985-11-05 Borg-Warner Corporation Torque measurement circuit and method
KR930009907B1 (ko) * 1988-10-04 1993-10-13 미쯔비시 덴끼 가부시끼가이샤 내연기관 제어장치
DE4002209C2 (de) * 1990-01-26 2003-05-08 Bosch Gmbh Robert Aussetzererkennung bei einem Verbrennungsmotor
DE4002207A1 (de) * 1990-01-26 1991-08-01 Bosch Gmbh Robert Katalysatorschutzverfahren
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US5200899A (en) * 1990-04-20 1993-04-06 Regents Of The University Of Michigan Method and system for detecting the misfire of an internal combustion engine utilizing angular velocity fluctuations
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FR2686653B1 (fr) * 1992-01-24 1994-03-11 Renault Regie Nale Usines Procede de detection des rates de combustion d'un moteur a combustion interne.

Also Published As

Publication number Publication date
ITTO930581A0 (it) 1993-08-04
ES2114636T3 (es) 1998-06-01
EP0637738A1 (en) 1995-02-08
DE69409308D1 (de) 1998-05-07
ITTO930581A1 (it) 1995-02-04
DE69409308T2 (de) 1998-07-23
US5515281A (en) 1996-05-07
EP0637738B1 (en) 1998-04-01

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