IN2014DN09334A - - Google Patents

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Publication number
IN2014DN09334A
IN2014DN09334A IN9334DEN2014A IN2014DN09334A IN 2014DN09334 A IN2014DN09334 A IN 2014DN09334A IN 9334DEN2014 A IN9334DEN2014 A IN 9334DEN2014A IN 2014DN09334 A IN2014DN09334 A IN 2014DN09334A
Authority
IN
India
Prior art keywords
injector
actuator
charge
fuel
ordering
Prior art date
Application number
Inventor
Michael Leblon
Alain Atanasyan
Jérémie Memain
Original Assignee
Continental Automotive France
Continental Automotive 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 Continental Automotive France, Continental Automotive Gmbh filed Critical Continental Automotive France
Publication of IN2014DN09334A publication Critical patent/IN2014DN09334A/en

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/802—Circuitry or processes for operating piezoelectric or electrostrictive devices not otherwise provided for, e.g. drive 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
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/402—Multiple injections
    • 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
    • F02D2041/2037—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for preventing bouncing of the valve needle
    • 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
    • F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • 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

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)

Abstract

The invention relates to a method for controlling a piezoelectric actuator of a fuel injector comprising the steps of: applying a first nominal electric charge (Qc) to the actuator so as to open the valve means of the injector for a fuel injection; ordering the closing of the injector in order to stop the fuel injection by the application of an electric discharge (Qd) to the actuator so as to close the valve means; and on top of the first nominal charge after the application of same and before the step consisting in ordering the closing of the injector applying at least one second electric charge (Qp) so called polarisation charge to the actuator so as to polarise the piezoelectric actuator during an opening phase of the injector and during the injection of the fuel into the combustion chamber.
IN9334DEN2014 2012-05-23 2013-05-21 IN2014DN09334A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1254719A FR2990998B1 (en) 2012-05-23 2012-05-23 METHOD FOR CONTROLLING AT LEAST ONE PIEZOELECTRIC FUEL INJECTOR ACTUATOR OF AN INTERNAL COMBUSTION ENGINE
PCT/EP2013/001492 WO2013174504A1 (en) 2012-05-23 2013-05-21 Method for controlling at least one piezoelectric actuator of a fuel injector of an internal combustion engine

Publications (1)

Publication Number Publication Date
IN2014DN09334A true IN2014DN09334A (en) 2015-07-10

Family

ID=48468605

Family Applications (2)

Application Number Title Priority Date Filing Date
IN9168DEN2014 IN2014DN09168A (en) 2012-05-23 2013-05-21
IN9334DEN2014 IN2014DN09334A (en) 2012-05-23 2013-05-21

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IN9168DEN2014 IN2014DN09168A (en) 2012-05-23 2013-05-21

Country Status (5)

Country Link
US (2) US10177299B2 (en)
CN (2) CN104302899B (en)
FR (2) FR2990998B1 (en)
IN (2) IN2014DN09168A (en)
WO (2) WO2013174506A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2990998B1 (en) * 2012-05-23 2016-02-26 Continental Automotive France METHOD FOR CONTROLLING AT LEAST ONE PIEZOELECTRIC FUEL INJECTOR ACTUATOR OF AN INTERNAL COMBUSTION ENGINE
FR3002592B1 (en) 2013-02-26 2016-09-16 Continental Automotive France METHOD FOR CONTROLLING A PIEZOELECTRIC FUEL INJECTOR OF A VEHICLE INTERNAL COMBUSTION ENGINE COMPRISING A POLARIZATION STEP OF THE PIEZOELECTRIC ACTUATOR
FR3009031B1 (en) 2013-07-29 2015-08-21 Continental Automotive France METHOD AND DEVICE FOR REPOLARIZING A PIEZOELECTRIC ACTUATOR OF AN INJECTOR OF AN INTERNAL COMBUSTION ENGINE OF A VEHICLE HAVING BEEN USED
DE102013224385B3 (en) * 2013-11-28 2015-03-12 Continental Automotive Gmbh Method for operating an injector of an injection system of an internal combustion engine
DE102015207954B3 (en) * 2015-04-29 2016-06-16 Continental Automotive Gmbh Determining a time of a predetermined opening state of a fuel injector
EP3190637B1 (en) * 2016-01-06 2020-03-04 poLight ASA Electronic circuit for controlling charging of a piezoelectric load
DE102016201435B4 (en) * 2016-02-01 2022-02-24 Vitesco Technologies GmbH Procedure for charging and discharging a piezo actuator
FR3050768B1 (en) * 2016-04-27 2019-09-13 Continental Automotive France METHOD FOR DIAGNOSING THE OPERATION OF A DIESEL ENGINE INJECTOR OF A MOTOR VEHICLE
JP2019039323A (en) * 2017-08-23 2019-03-14 株式会社デンソー Fuel injection control device
US10907567B2 (en) * 2018-01-03 2021-02-02 Ford Global Technologies, Llc System and method for operating a fuel injector
US10578045B1 (en) * 2018-08-23 2020-03-03 GM Global Technology Operations LLC System and method for enhancing robustness of engine component diagnostic using compensation learning strategy
FR3112572B1 (en) * 2020-07-20 2022-06-17 Vitesco Technologies Static flow drift of a piezoelectric injector

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FR3002592B1 (en) * 2013-02-26 2016-09-16 Continental Automotive France METHOD FOR CONTROLLING A PIEZOELECTRIC FUEL INJECTOR OF A VEHICLE INTERNAL COMBUSTION ENGINE COMPRISING A POLARIZATION STEP OF THE PIEZOELECTRIC ACTUATOR
FR3009031B1 (en) * 2013-07-29 2015-08-21 Continental Automotive France METHOD AND DEVICE FOR REPOLARIZING A PIEZOELECTRIC ACTUATOR OF AN INJECTOR OF AN INTERNAL COMBUSTION ENGINE OF A VEHICLE HAVING BEEN USED

Also Published As

Publication number Publication date
CN104302899B (en) 2017-04-19
US20150108923A1 (en) 2015-04-23
FR2990999B1 (en) 2016-12-23
WO2013174504A1 (en) 2013-11-28
US10177299B2 (en) 2019-01-08
US20150096539A1 (en) 2015-04-09
IN2014DN09168A (en) 2015-07-10
CN104520565B (en) 2020-01-14
CN104302899A (en) 2015-01-21
FR2990998A1 (en) 2013-11-29
WO2013174506A1 (en) 2013-11-28
FR2990998B1 (en) 2016-02-26
FR2990999A1 (en) 2013-11-29
CN104520565A (en) 2015-04-15
US9502633B2 (en) 2016-11-22

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