IT1261580B - Metodo di diagnosi di guasti di iniettori di impianti di iniezione ad alta pressione per motori a combustione interna - Google Patents

Metodo di diagnosi di guasti di iniettori di impianti di iniezione ad alta pressione per motori a combustione interna

Info

Publication number
IT1261580B
IT1261580B ITTO930653A ITTO930653A IT1261580B IT 1261580 B IT1261580 B IT 1261580B IT TO930653 A ITTO930653 A IT TO930653A IT TO930653 A ITTO930653 A IT TO930653A IT 1261580 B IT1261580 B IT 1261580B
Authority
IT
Italy
Prior art keywords
coil
charge
internal combustion
high pressure
combustion engines
Prior art date
Application number
ITTO930653A
Other languages
English (en)
Inventor
Riccardo Groppo
Paolo Tubetti
Giorgio Bortignon
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 ITTO930653A priority Critical patent/IT1261580B/it
Publication of ITTO930653A0 publication Critical patent/ITTO930653A0/it
Priority to JP50844295A priority patent/JP3936997B2/ja
Priority to PCT/EP1994/002919 priority patent/WO1995007409A1/en
Priority to EP94927542A priority patent/EP0668963B1/en
Priority to DE69410431T priority patent/DE69410431T2/de
Publication of ITTO930653A1 publication Critical patent/ITTO930653A1/it
Application granted granted Critical
Publication of IT1261580B publication Critical patent/IT1261580B/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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • 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
    • F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
    • 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
    • F02D2041/2003—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening
    • F02D2041/2006—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening by using a boost capacitor
    • 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
    • F02D2041/2031—Control of the current by means of delays or monostable multivibrators
    • 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
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2075—Type of transistors or particular use thereof
    • 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
    • F02D2041/2086—Output circuits, e.g. for controlling currents in command coils with means for detecting circuit failures
    • F02D2041/2089—Output circuits, e.g. for controlling currents in command coils with means for detecting circuit failures detecting open circuits
    • 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
    • F02D2041/2086—Output circuits, e.g. for controlling currents in command coils with means for detecting circuit failures
    • F02D2041/2093—Output circuits, e.g. for controlling currents in command coils with means for detecting circuit failures detecting short circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Abstract

Il metodo consiste nell'alimentare, una per volta, le bobine di iniettore (L1, L2) per un tempo prefissato, chiudendo il rispettivo interruttore (S1, S2), scaricare la bobina appena alimentata su un condensatore di accumulo (12), misurare la carica del condensatore di accumulo in seguito al trasferimento di energia dalla bobina che si è scaricata e confrontare il valore di carica misurato con una soglia prefissata. Dapprima viene effettuata la verifica di corto-circuito, alimentando ciascuna bobina per un tempo brevissimo, di modo che, anche in presenza di corto-circuito, la corrente fluente non comporti danni al circuito di comando (1), e quindi viene verificato che la carica misurata sia inferiore ad una prima soglia. Successivamente viene effettuata la verifica di circuito aperto, in cui ciascuna bobina viene alimentata per un tempo più lungo e viene verificato che la carica misurata sia superiore ad una seconda soglia.Figura 1.
ITTO930653A 1993-09-07 1993-09-07 Metodo di diagnosi di guasti di iniettori di impianti di iniezione ad alta pressione per motori a combustione interna IT1261580B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO930653A IT1261580B (it) 1993-09-07 1993-09-07 Metodo di diagnosi di guasti di iniettori di impianti di iniezione ad alta pressione per motori a combustione interna
JP50844295A JP3936997B2 (ja) 1993-09-07 1994-09-02 内燃機関高圧インジェクション装置の各インジェクタ用エラー診断方法
PCT/EP1994/002919 WO1995007409A1 (en) 1993-09-07 1994-09-02 Fault diagnosis method for injectors of internal combustion engine high-pressure injection systems
EP94927542A EP0668963B1 (en) 1993-09-07 1994-09-02 Fault diagnosis method for injectors of internal combustion engine high-pressure injection systems
DE69410431T DE69410431T2 (de) 1993-09-07 1994-09-02 Fehlerdiagnoseverfahren für die einspritzdüse von hochdruckeinspritzsystemen der brennkraftmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930653A IT1261580B (it) 1993-09-07 1993-09-07 Metodo di diagnosi di guasti di iniettori di impianti di iniezione ad alta pressione per motori a combustione interna

Publications (3)

Publication Number Publication Date
ITTO930653A0 ITTO930653A0 (it) 1993-09-07
ITTO930653A1 ITTO930653A1 (it) 1995-03-07
IT1261580B true IT1261580B (it) 1996-05-23

Family

ID=11411716

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930653A IT1261580B (it) 1993-09-07 1993-09-07 Metodo di diagnosi di guasti di iniettori di impianti di iniezione ad alta pressione per motori a combustione interna

Country Status (5)

Country Link
EP (1) EP0668963B1 (it)
JP (1) JP3936997B2 (it)
DE (1) DE69410431T2 (it)
IT (1) IT1261580B (it)
WO (1) WO1995007409A1 (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616773C1 (de) * 1996-04-26 1997-09-04 Daimler Benz Ag Funktionsüberwachte Kraftstoffeinspritzanlage
DE10016556B4 (de) * 1999-04-30 2007-10-11 Robert Bosch Gmbh Vorrichtung und Verfahren zur Überwachung der Ansteuerung eines Stellglieds, insbesondere eines elektromagnetischen Verbrauchers
DE19957181A1 (de) * 1999-11-27 2001-05-31 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ansteuerung wenigstens eines Verbrauchers
JP3699370B2 (ja) * 2001-07-13 2005-09-28 三菱電機株式会社 燃料噴射装置の故障検出回路
US7252072B2 (en) * 2003-03-12 2007-08-07 Cummins Inc. Methods and systems of diagnosing fuel injection system error
DE102007026947B4 (de) * 2007-06-12 2009-06-10 Continental Automotive Gmbh Verfahren und Vorrichtung zum Betreiben eines Einspritzventils
CN102477927B (zh) * 2010-11-24 2013-11-06 联创汽车电子有限公司 汽车发动机喷油器故障模拟和驱动电流采集电路
US9157960B2 (en) 2012-03-02 2015-10-13 Micron Technology, Inc. Through-substrate via (TSV) testing
CN106460703B (zh) 2014-05-13 2019-06-07 日立汽车系统株式会社 内燃机的燃料喷射装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0792016B2 (ja) * 1986-06-09 1995-10-09 三菱電機株式会社 内燃機関用燃料噴射弁駆動回路の故障検出回路
US4746869A (en) * 1987-06-10 1988-05-24 Hesston Corporation Circuit for testing inductive coils
IT1223822B (it) * 1988-09-14 1990-09-29 Marelli Autronica Circuito elettrico particolarmente circuito elettronico di potenza per impianti di iniezione di autoveicoli con funzione di rilevazione diagnostica del guasto e relativo procedimento
DE4020836A1 (de) * 1990-06-29 1992-01-02 Kloeckner Humboldt Deutz Ag Steuervorrichtung fuer ein elektromagnetisches ventil
JPH04133693A (ja) * 1990-09-21 1992-05-07 Tokyo Electric Co Ltd ステッピングモータ等の駆動装置
JP2767317B2 (ja) * 1990-10-15 1998-06-18 株式会社ユニシアジェックス 燃料噴射弁駆動回路の断線診断装置

Also Published As

Publication number Publication date
DE69410431D1 (de) 1998-06-25
JPH08503535A (ja) 1996-04-16
DE69410431T2 (de) 1998-09-17
EP0668963A1 (en) 1995-08-30
ITTO930653A1 (it) 1995-03-07
ITTO930653A0 (it) 1993-09-07
EP0668963B1 (en) 1998-05-20
WO1995007409A1 (en) 1995-03-16
JP3936997B2 (ja) 2007-06-27

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Legal Events

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

Effective date: 19970929