EP3347584B8 - Detection method for detecting a gap size of a gap between an injector valve assembly and piezo stack, and actuation method for actuating an actuator unit in a piezo stack - Google Patents

Detection method for detecting a gap size of a gap between an injector valve assembly and piezo stack, and actuation method for actuating an actuator unit in a piezo stack Download PDF

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Publication number
EP3347584B8
EP3347584B8 EP16741260.0A EP16741260A EP3347584B8 EP 3347584 B8 EP3347584 B8 EP 3347584B8 EP 16741260 A EP16741260 A EP 16741260A EP 3347584 B8 EP3347584 B8 EP 3347584B8
Authority
EP
European Patent Office
Prior art keywords
piezo stack
gap
actuating
detecting
valve assembly
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.)
Active
Application number
EP16741260.0A
Other languages
German (de)
French (fr)
Other versions
EP3347584B1 (en
EP3347584A1 (en
Inventor
Claus Zumstrull
Grit KRÜGER
Thomas Richter
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.)
Vitesco Technologies GmbH
Original Assignee
CPT Group 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 CPT Group GmbH filed Critical CPT Group GmbH
Publication of EP3347584A1 publication Critical patent/EP3347584A1/en
Publication of EP3347584B1 publication Critical patent/EP3347584B1/en
Application granted granted Critical
Publication of EP3347584B8 publication Critical patent/EP3347584B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2464—Characteristics of actuators
    • F02D41/2467—Characteristics of actuators for injectors
    • 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
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/005—Fuel-injectors combined or associated with other devices the devices being 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
    • F02D41/20—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
    • F02D2041/2044—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using pre-magnetisation or post-magnetisation of the 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
    • F02D41/20—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
    • 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
    • F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/24—Fuel-injection apparatus with sensors
    • F02M2200/244—Force sensors
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/701—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical
    • F02M2200/702—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical with actuator and actuated element moving in different directions, e.g. in opposite directions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
EP16741260.0A 2015-09-09 2016-07-06 Detection method for detecting a gap size of a gap between an injector valve assembly and piezo stack, and actuation method for actuating an actuator unit in a piezo stack Active EP3347584B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015217193.0A DE102015217193A1 (en) 2015-09-09 2015-09-09 Detection method for detecting a gap size of a gap between an injector valve assembly and a piezo stack and driving method for driving an actuator in a piezo stack.
PCT/EP2016/066021 WO2017041923A1 (en) 2015-09-09 2016-07-06 Detection method for detecting a gap size of a gap between an injector valve assembly and piezo stack, and actuation method for actuating an actuator unit in a piezo stack

Publications (3)

Publication Number Publication Date
EP3347584A1 EP3347584A1 (en) 2018-07-18
EP3347584B1 EP3347584B1 (en) 2019-09-11
EP3347584B8 true EP3347584B8 (en) 2019-12-18

Family

ID=56497728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16741260.0A Active EP3347584B8 (en) 2015-09-09 2016-07-06 Detection method for detecting a gap size of a gap between an injector valve assembly and piezo stack, and actuation method for actuating an actuator unit in a piezo stack

Country Status (6)

Country Link
EP (1) EP3347584B8 (en)
JP (1) JP6667619B2 (en)
KR (1) KR102027076B1 (en)
CN (1) CN107923334B (en)
DE (1) DE102015217193A1 (en)
WO (1) WO2017041923A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017209235B3 (en) * 2017-05-31 2018-05-30 Continental Automotive Gmbh Method for operating a common rail injection system and common rail injection system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19901711A1 (en) * 1999-01-18 2000-07-20 Bosch Gmbh Robert Fuel injector and method for operating a fuel injector
DE10319530B4 (en) * 2003-04-30 2007-01-25 Siemens Ag Method and device for monitoring an electromechanical actuator
JP2006226137A (en) * 2005-02-15 2006-08-31 Denso Corp Fuel injection device
DE102005046933B4 (en) * 2005-09-30 2015-10-15 Continental Automotive Gmbh Method for controlling a piezo-actuated injection valve
DE102008020931A1 (en) * 2008-04-25 2009-11-19 Continental Automotive Gmbh Method for controlling a piezoelectric actuator in a fuel injector
JP4715864B2 (en) * 2008-05-07 2011-07-06 株式会社デンソー Inspection method and inspection apparatus for piezoelectric actuator.
DE102008023373B4 (en) * 2008-05-13 2010-04-08 Continental Automotive Gmbh Method of controlling an injector, fuel injection system and internal combustion engine
CN102933836B (en) * 2010-05-20 2015-06-03 康明斯知识产权公司 Piezoelectric fuel injector system, method for estimating timing characteristics of a fuel injector event
DE102011003751B4 (en) * 2011-02-08 2021-06-10 Vitesco Technologies GmbH Injector
DE102011004613A1 (en) * 2011-02-23 2012-08-23 Continental Automotive Gmbh Method for monitoring the state of a piezo injector of a fuel injection system
DE102011005285B4 (en) * 2011-03-09 2015-08-20 Continental Automotive Gmbh Method for determining the idle stroke of a piezo injector with directly actuated nozzle needle
DE102013206933A1 (en) 2013-04-17 2014-10-23 Continental Automotive Gmbh Modular actuator unit for an injection valve

Also Published As

Publication number Publication date
JP2018527512A (en) 2018-09-20
EP3347584B1 (en) 2019-09-11
JP6667619B2 (en) 2020-03-18
EP3347584A1 (en) 2018-07-18
CN107923334B (en) 2021-01-22
KR20180037049A (en) 2018-04-10
KR102027076B1 (en) 2019-09-30
CN107923334A (en) 2018-04-17
DE102015217193A1 (en) 2017-03-09
WO2017041923A1 (en) 2017-03-16

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