EP1420156A3 - Control circuit for fuel injectors of a vehicle - Google Patents

Control circuit for fuel injectors of a vehicle Download PDF

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Publication number
EP1420156A3
EP1420156A3 EP03292787A EP03292787A EP1420156A3 EP 1420156 A3 EP1420156 A3 EP 1420156A3 EP 03292787 A EP03292787 A EP 03292787A EP 03292787 A EP03292787 A EP 03292787A EP 1420156 A3 EP1420156 A3 EP 1420156A3
Authority
EP
European Patent Office
Prior art keywords
injectors
fuel injectors
vehicle
control circuit
electrical quantities
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.)
Withdrawn
Application number
EP03292787A
Other languages
German (de)
French (fr)
Other versions
EP1420156A2 (en
Inventor
Christophe Ripoll
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of EP1420156A2 publication Critical patent/EP1420156A2/en
Publication of EP1420156A3 publication Critical patent/EP1420156A3/en
Withdrawn legal-status Critical Current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
    • 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
    • F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric injectors
    • 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
    • F02D2041/2086—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
    • 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

Landscapes

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

Abstract

Ce dispositif de pilotage d'injecteurs de carburant résonnants de véhicule automobile comprend un circuit d'excitation (12) des injecteurs auquel sont connectées des cellules piézo-électriques (16) équipant les injecteurs et comportant des moyens d'élaboration (10, 12, 14) d'une tension périodique d'excitation des injecteurs et des moyens de sélection (14) des cellules piézo-électriques à exciter.This device for driving resonant fuel injectors of a motor vehicle comprises an excitation circuit (12) for injectors to which piezoelectric cells are connected (16) equipping the injectors and comprising means for producing (10, 12, 14) of a periodic excitation voltage of the injectors and means selecting (14) piezoelectric cells to be excited.

Il comporte des moyens de mesure de grandeurs électriques présentes sur le circuit d'excitation et des moyens de détection (14) de dysfonctionnement des injecteurs par analyse des grandeurs électriques mesurées.

Figure 00000001
It comprises means for measuring electrical quantities present on the excitation circuit and detecting means (14) for detecting dysfunction of the injectors by analyzing the measured electrical quantities.
Figure 00000001
EP03292787A 2002-11-13 2003-11-06 Control circuit for fuel injectors of a vehicle Withdrawn EP1420156A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0214147A FR2847001B1 (en) 2002-11-13 2002-11-13 DEVICE FOR CONTROLLING FUEL INJECTORS FOR A MOTOR VEHICLE
FR0214147 2002-11-13

Publications (2)

Publication Number Publication Date
EP1420156A2 EP1420156A2 (en) 2004-05-19
EP1420156A3 true EP1420156A3 (en) 2005-03-09

Family

ID=32116563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03292787A Withdrawn EP1420156A3 (en) 2002-11-13 2003-11-06 Control circuit for fuel injectors of a vehicle

Country Status (2)

Country Link
EP (1) EP1420156A3 (en)
FR (1) FR2847001B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006055341B3 (en) * 2006-11-23 2008-03-13 Siemens Ag Method for localizing fault or error position within fuel injection system, e.g. for combustion engine, requires sending pulse defined by energy content and duration to each injector
EP1927743A1 (en) * 2006-11-30 2008-06-04 Delphi Technologies, Inc. Detection of faults in an injector arrangement
DE102015212371B4 (en) * 2015-07-02 2021-08-05 Vitesco Technologies GmbH Method for monitoring the operation of a piezo injector

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709716A1 (en) * 1997-03-10 1998-05-14 Siemens Ag Drive circuit for at least one capacitive control element, esp. for piezoelectrically operated fuel injection valve for motor vehicle
DE19709715A1 (en) * 1997-03-10 1998-05-20 Siemens Ag Device for driving at least one capacitive control element e.g. for use with motor vehicle IC engine fuel-injection valve
FR2776087A1 (en) * 1998-03-11 1999-09-17 Siemens Ag METHOD AND DEVICE FOR CONTROLLING CAPACITIVE ADJUSTMENT BODIES
US6109245A (en) * 1997-03-21 2000-08-29 Siemens Aktiengesellschaft Apparatus and method for driving a piezoelectrically controlled fuel injection valve
DE19927087A1 (en) * 1999-06-15 2000-12-21 Bosch Gmbh Robert Arrangement for charging and discharging several piezoelectric elements e.g. for fuel injectors in IC engine, has piezoelectric elements divided into groups, each able to be mutually independently charged or discharged
EP1139443A1 (en) * 2000-04-01 2001-10-04 Robert Bosch GmbH Method and apparatus for driving a piezoelectric fuel injector element
US20010039484A1 (en) * 1998-09-30 2001-11-08 Hellmut Freudenberg Method and configuration for diagnosis of a capacitive actuator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709716A1 (en) * 1997-03-10 1998-05-14 Siemens Ag Drive circuit for at least one capacitive control element, esp. for piezoelectrically operated fuel injection valve for motor vehicle
DE19709715A1 (en) * 1997-03-10 1998-05-20 Siemens Ag Device for driving at least one capacitive control element e.g. for use with motor vehicle IC engine fuel-injection valve
US6109245A (en) * 1997-03-21 2000-08-29 Siemens Aktiengesellschaft Apparatus and method for driving a piezoelectrically controlled fuel injection valve
FR2776087A1 (en) * 1998-03-11 1999-09-17 Siemens Ag METHOD AND DEVICE FOR CONTROLLING CAPACITIVE ADJUSTMENT BODIES
US20010039484A1 (en) * 1998-09-30 2001-11-08 Hellmut Freudenberg Method and configuration for diagnosis of a capacitive actuator
DE19927087A1 (en) * 1999-06-15 2000-12-21 Bosch Gmbh Robert Arrangement for charging and discharging several piezoelectric elements e.g. for fuel injectors in IC engine, has piezoelectric elements divided into groups, each able to be mutually independently charged or discharged
EP1139443A1 (en) * 2000-04-01 2001-10-04 Robert Bosch GmbH Method and apparatus for driving a piezoelectric fuel injector element

Also Published As

Publication number Publication date
FR2847001A1 (en) 2004-05-14
FR2847001B1 (en) 2007-02-02
EP1420156A2 (en) 2004-05-19

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