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IT1261575B - Metodo di diagnosi di malfunzionamenti del circuito ad alta pressione di impianti di iniezione ad alta pressione per motori a combustione interna - Google Patents

Metodo di diagnosi di malfunzionamenti del circuito ad alta pressione di impianti di iniezione ad alta pressione per motori a combustione interna

Info

Publication number
IT1261575B
IT1261575B ITTO930646A ITTO930646A IT1261575B IT 1261575 B IT1261575 B IT 1261575B IT TO930646 A ITTO930646 A IT TO930646A IT TO930646 A ITTO930646 A IT TO930646A IT 1261575 B IT1261575 B IT 1261575B
Authority
IT
Italy
Prior art keywords
high pressure
pressure
duty cycle
malfunctions
diagnosis
Prior art date
Application number
ITTO930646A
Other languages
English (en)
Inventor
Paolo Tubetti
Riccardo Buratti
Stefano Maria Borrione
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 ITTO930646A priority Critical patent/IT1261575B/it
Publication of ITTO930646A0 publication Critical patent/ITTO930646A0/it
Priority to PCT/EP1994/002922 priority patent/WO1995006814A1/en
Priority to DE69409222T priority patent/DE69409222T2/de
Priority to EP94927543A priority patent/EP0668966B1/en
Priority to JP50796095A priority patent/JP3727339B2/ja
Publication of ITTO930646A1 publication Critical patent/ITTO930646A1/it
Application granted granted Critical
Publication of IT1261575B publication Critical patent/IT1261575B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
    • F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • F02D2041/223—Diagnosis of fuel pressure sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/224—Diagnosis of the fuel system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/224—Diagnosis of the fuel system
    • F02D2041/225—Leakage detection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/228—Warning displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/31—Control of the fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems

Landscapes

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

Abstract

Il metodo di diagnosi ha lo scopo di rilevare eventuali malfunzionamenti del circuito ad alta pressione. Il circuito comprende una pompa (6) che alimenta combustibile ad una pressione il cui valore viene controllato tramite una elettrovalvola di regolazione pressione (7) alimentata da una corrente il cui duty-cycle viene controllato in cicli di regolazione periodici. Il metodo consiste nel monitorare grandezze correlate alla pressione generata dalla pompa (6) in cicli di regolazione successivi, confrontare l'andamento di tali grandezze con valori di riferimento e generare segnali di guasto nel caso che l'andamento determinato non presenti una relazione prefissata con i valori di riferimento. In particolare, viene verificato il permanere della pressione di alimentazione del carburante al di sopra o al di sotto di valori massimo e minimo, il permanere del duty-cycle della corrente di alimentazione dell'elettrovalvola (7) al di sopra o al di sotto di limiti prefissati e la congruenza fra un valore di pressione misurato ed un valore di riferimento calcolato in base al duty-cycle.Figure 1 e 3.
ITTO930646A 1993-09-03 1993-09-03 Metodo di diagnosi di malfunzionamenti del circuito ad alta pressione di impianti di iniezione ad alta pressione per motori a combustione interna IT1261575B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO930646A IT1261575B (it) 1993-09-03 1993-09-03 Metodo di diagnosi di malfunzionamenti del circuito ad alta pressione di impianti di iniezione ad alta pressione per motori a combustione interna
PCT/EP1994/002922 WO1995006814A1 (en) 1993-09-03 1994-09-02 Method of diagnosing malfunctioning of the high-pressure circuit of internal combustion engine high-pressure injection systems
DE69409222T DE69409222T2 (de) 1993-09-03 1994-09-02 Verfahren zur feststellung von störungen im hochdruckkreis eines hochdruck-kraftstoffeinspritz-systems einer brennkraftmaschine
EP94927543A EP0668966B1 (en) 1993-09-03 1994-09-02 Method of diagnosing malfunctioning of the high-pressure circuit of internal combustion engine high-pressure injection systems
JP50796095A JP3727339B2 (ja) 1993-09-03 1994-09-02 内燃機関高圧噴射装置の高圧回路における障害診断方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930646A IT1261575B (it) 1993-09-03 1993-09-03 Metodo di diagnosi di malfunzionamenti del circuito ad alta pressione di impianti di iniezione ad alta pressione per motori a combustione interna

Publications (3)

Publication Number Publication Date
ITTO930646A0 ITTO930646A0 (it) 1993-09-03
ITTO930646A1 ITTO930646A1 (it) 1995-03-03
IT1261575B true IT1261575B (it) 1996-05-23

Family

ID=11411710

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930646A IT1261575B (it) 1993-09-03 1993-09-03 Metodo di diagnosi di malfunzionamenti del circuito ad alta pressione di impianti di iniezione ad alta pressione per motori a combustione interna

Country Status (5)

Country Link
EP (1) EP0668966B1 (it)
JP (1) JP3727339B2 (it)
DE (1) DE69409222T2 (it)
IT (1) IT1261575B (it)
WO (1) WO1995006814A1 (it)

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US5493902A (en) * 1994-03-02 1996-02-27 Ford Motor Company On-board detection of pressure regulator malfunction
US5499538A (en) * 1994-03-03 1996-03-19 Ford Motor Company On-board detection of fuel pump malfunction
DE19521791A1 (de) * 1995-06-15 1996-12-19 Daimler Benz Ag Verfahren zum Erkennen von Betriebsstörungen in einer Kraftstoffeinspritzanlage einer Brennkraftmaschine
DE19534051A1 (de) * 1995-09-14 1997-03-20 Bosch Gmbh Robert Verfahren zum Betrieb einer Kraftstoffeinspritzeinrichtung
DE19547647A1 (de) * 1995-12-20 1997-06-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine
DE19548280A1 (de) * 1995-12-22 1997-06-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE19604552B4 (de) * 1996-02-08 2007-10-31 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE19613184C2 (de) * 1996-04-02 1998-01-22 Daimler Benz Ag Verfahren zum Erkennen von Betriebsstörungen in einer Kraftstoffeinspritzanlage
EP0846222B1 (de) * 1996-06-26 2001-11-28 Robert Bosch Gmbh Verfahren zum betrieb einer kraftstoffeinspritzeinrichtung
DE19634982C2 (de) * 1996-08-29 2002-10-10 Siemens Ag Verfahren zur Überwachung eines Kraftstoffdruckes
GB9701877D0 (en) * 1997-01-30 1997-03-19 Lucas Ind Plc Fuel pump
DE19703891B4 (de) * 1997-02-03 2008-07-31 Robert Bosch Gmbh Verfahren und Vorrichtung zur Erkennung einer Leckage
DE19726183A1 (de) * 1997-06-20 1998-12-24 Bosch Gmbh Robert Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems
DE19834660A1 (de) * 1998-07-31 2000-02-03 Bosch Gmbh Robert Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems
DE19937962A1 (de) * 1999-08-11 2001-02-15 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung eines Einspritzsystems
DE10031066C2 (de) * 2000-06-26 2002-05-02 Siemens Ag Einspritzanlage für eine Brennkraftmaschine sowie Verfahren zum Betrieb einer Einspritzanlage
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.
DE10146474B4 (de) * 2001-09-21 2005-10-06 Robert Bosch Gmbh Verfahren und Vorrichtung zur Diagnose eines Druckdämpfers
DE10147189A1 (de) * 2001-09-25 2003-04-24 Bosch Gmbh Robert Verfahren zum Betreiben eines Kraftstoffversorgungssystems für einen Verbrennungsmotor eines Kraftfahrzeugs
US6715468B2 (en) * 2001-11-07 2004-04-06 Denso Corporation Fuel injection system
DE10259797A1 (de) 2002-12-19 2004-07-15 Siemens Ag Vorrichtung und Verfahren zum Erkennen von Fehlern in einem Kraftstoffeinspritzsystem
DE102004022115A1 (de) 2004-05-05 2005-11-24 Robert Bosch Gmbh Verfahren zum Einbringen eines Reagenzmittels in einen Abgaskanal einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens
DE102004037963A1 (de) * 2004-08-05 2006-03-16 Robert Bosch Gmbh Prüfverfahren
JP2008516153A (ja) * 2004-10-12 2008-05-15 フォード・オトマティブ・サナイ・アノニム・シルケチ 燃料噴射を監視する方法および装置
JP4746510B2 (ja) * 2006-02-21 2011-08-10 愛三工業株式会社 負荷駆動系の異常診断システムおよび燃料ポンプ制御システム
JP4591390B2 (ja) * 2006-03-27 2010-12-01 株式会社デンソー ポンプ故障診断装置
DE102008024955B3 (de) * 2008-05-23 2009-12-24 Continental Automotive Gmbh Verfahren zur Erkennung einer Fehlfunktion eines Raildrucksensors bei einem Common Rail-Einspritzsystem
EP2791496B1 (en) * 2011-12-13 2017-09-20 Scania CV AB Device and method for fault detection in a fuel supply system of a motor vehicle
US20140352416A1 (en) * 2011-12-13 2014-12-04 Scania Cv Ab Device and method for fault detection in a fuel supply system of a motor vehicle
US8775052B2 (en) 2011-12-15 2014-07-08 GM Global Technology Operations LLC Sensors bias detection for electronic returnless fuel system
DE102016205481A1 (de) * 2016-04-04 2017-10-05 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Dichtheitsprüfung einer Kraftstoff-Hochdruck-Einspritzvorrichtung
DE102018217327B4 (de) * 2018-10-10 2023-10-12 Vitesco Technologies GmbH Verfahren und Vorrichtung zur Plausibilisierung der Funktionsfähigkeit eines Hochdrucksensors einer Hochdruckkraftstoffeinspritzvorrichtung eines Kraftfahrzeugs

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DE3301742A1 (de) * 1983-01-20 1984-07-26 Robert Bosch Gmbh, 7000 Stuttgart Sicherheitseinrichtung fuer eine brennkraftmaschine mit selbstzuendung
DE4103840B4 (de) * 1991-02-08 2011-02-10 Robert Bosch Gmbh Fehler-Überwachungsverfahren
JP3033214B2 (ja) * 1991-02-27 2000-04-17 株式会社デンソー 複数の燃料圧送手段による蓄圧式燃料供給方法及び装置と、複数の流体圧送手段を有する機器における異常判断装置
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Also Published As

Publication number Publication date
EP0668966A1 (en) 1995-08-30
DE69409222T2 (de) 1998-07-16
ITTO930646A1 (it) 1995-03-03
WO1995006814A1 (en) 1995-03-09
ITTO930646A0 (it) 1993-09-03
JPH08503053A (ja) 1996-04-02
EP0668966B1 (en) 1998-03-25
JP3727339B2 (ja) 2005-12-14
DE69409222D1 (de) 1998-04-30

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970929