EP1439297A3 - Method for determining the linear expansion of a piezoelectric actuator - Google Patents

Method for determining the linear expansion of a piezoelectric actuator Download PDF

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Publication number
EP1439297A3
EP1439297A3 EP03104715A EP03104715A EP1439297A3 EP 1439297 A3 EP1439297 A3 EP 1439297A3 EP 03104715 A EP03104715 A EP 03104715A EP 03104715 A EP03104715 A EP 03104715A EP 1439297 A3 EP1439297 A3 EP 1439297A3
Authority
EP
European Patent Office
Prior art keywords
actuator
determining
linear expansion
piezoelectric actuator
force acting
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Withdrawn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
EP03104715A
Other languages
German (de)
French (fr)
Other versions
EP1439297A2 (en
Inventor
Johannes-Joerg Rueger
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1439297A2 publication Critical patent/EP1439297A2/en
Publication of EP1439297A3 publication Critical patent/EP1439297A3/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Withdrawn legal-status Critical Current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
    • F02D41/20—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
    • 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
    • F02D2041/2013—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 voltage source
    • 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
    • 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
    • F02D2041/2034—Control of the current gradient
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

Bei einem Verfahren zur Bestimmung der Längenausdehnung eines piezoelektrischen Aktors (2) eines Kraftstoffeinspritzventils (1) einer Brennkraftmaschine sowie der auf diesen während eines Einspritzvorgangs wirkenden Kraft wird in wenigstens einem Betriebspunkt des Aktors (2) die auf den Aktor (2) aufgebrachte Ladungsmenge und die am Aktor (2) anliegende Spannung ermittelt werden und hieraus auf die Längenausdehnung (s_x) des Aktors (2) und die auf den Aktor (2) wirkende Kraft (F_x) geschlossen.

Figure 00000001
In a method for determining the linear expansion of a piezoelectric actuator (2) of a fuel injection valve (1) of an internal combustion engine and the force acting thereon during an injection process in at least one operating point of the actuator (2) on the actuator (2) applied amount of charge and on the actuator (2) voltage is determined and from this on the longitudinal extent (s_x) of the actuator (2) and the force acting on the actuator (2) (F_x) closed.
Figure 00000001
EP03104715A 2003-01-20 2003-12-16 Method for determining the linear expansion of a piezoelectric actuator Withdrawn EP1439297A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003101822 DE10301822B4 (en) 2003-01-20 2003-01-20 Method for determining the linear expansion of a piezoelectric actuator
DE10301822 2003-01-20

Publications (2)

Publication Number Publication Date
EP1439297A2 EP1439297A2 (en) 2004-07-21
EP1439297A3 true EP1439297A3 (en) 2005-12-07

Family

ID=32520029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03104715A Withdrawn EP1439297A3 (en) 2003-01-20 2003-12-16 Method for determining the linear expansion of a piezoelectric actuator

Country Status (2)

Country Link
EP (1) EP1439297A3 (en)
DE (1) DE10301822B4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012210735B4 (en) * 2012-06-25 2020-02-06 Robert Bosch Gmbh Method and device for controlling a fuel injection valve
DE102013223750B3 (en) 2013-11-21 2015-02-19 Continental Automotive Gmbh Method for determining the valve opening time for piezoservo driven injectors

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464443A1 (en) * 1990-06-18 1992-01-08 Toyota Jidosha Kabushiki Kaisha Device for driving a piezoelectric element
JPH06177449A (en) * 1992-12-04 1994-06-24 Toyota Motor Corp Piezoelectric-element driving circuit
EP0611881A1 (en) * 1993-01-19 1994-08-24 Aisin Seiki Kabushiki Kaisha Fuel injection control device for internal combustion engine
JPH07107753A (en) * 1993-09-29 1995-04-21 Toyota Motor Corp Piezoelectric-element driving device
DE19732802A1 (en) * 1997-07-30 1999-02-04 Bosch Gmbh Robert Fuel injection device for internal combustion engines
DE19827052A1 (en) * 1998-06-18 1999-12-23 Bosch Gmbh Robert Expansion control method for piezoelectric element e.g. piezoelectric setting element for i.c. engine fuel injection valve
DE10032022A1 (en) * 2000-07-01 2002-01-10 Bosch Gmbh Robert Method and determination of the control voltage for an injection valve with a piezoelectric actuator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143501C1 (en) * 2001-09-05 2003-05-28 Siemens Ag Method for controlling a piezo-operated fuel injection valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0464443A1 (en) * 1990-06-18 1992-01-08 Toyota Jidosha Kabushiki Kaisha Device for driving a piezoelectric element
JPH06177449A (en) * 1992-12-04 1994-06-24 Toyota Motor Corp Piezoelectric-element driving circuit
EP0611881A1 (en) * 1993-01-19 1994-08-24 Aisin Seiki Kabushiki Kaisha Fuel injection control device for internal combustion engine
JPH07107753A (en) * 1993-09-29 1995-04-21 Toyota Motor Corp Piezoelectric-element driving device
DE19732802A1 (en) * 1997-07-30 1999-02-04 Bosch Gmbh Robert Fuel injection device for internal combustion engines
DE19827052A1 (en) * 1998-06-18 1999-12-23 Bosch Gmbh Robert Expansion control method for piezoelectric element e.g. piezoelectric setting element for i.c. engine fuel injection valve
DE10032022A1 (en) * 2000-07-01 2002-01-10 Bosch Gmbh Robert Method and determination of the control voltage for an injection valve with a piezoelectric actuator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 507 (E - 1609) 22 September 1994 (1994-09-22) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 07 31 August 1995 (1995-08-31) *

Also Published As

Publication number Publication date
EP1439297A2 (en) 2004-07-21
DE10301822A1 (en) 2004-07-29
DE10301822B4 (en) 2011-04-07

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