ATE378510T1 - DETERMINATION OF THE TEMPERATURE OF A PIEZOELECTRIC ELEMENT AND USE OF THE SAME TO CORRECT THE CONTROL VOLTAGE - Google Patents

DETERMINATION OF THE TEMPERATURE OF A PIEZOELECTRIC ELEMENT AND USE OF THE SAME TO CORRECT THE CONTROL VOLTAGE

Info

Publication number
ATE378510T1
ATE378510T1 AT00106985T AT00106985T ATE378510T1 AT E378510 T1 ATE378510 T1 AT E378510T1 AT 00106985 T AT00106985 T AT 00106985T AT 00106985 T AT00106985 T AT 00106985T AT E378510 T1 ATE378510 T1 AT E378510T1
Authority
AT
Austria
Prior art keywords
piezoelectric element
temperature
correct
determination
same
Prior art date
Application number
AT00106985T
Other languages
German (de)
Inventor
Johannes-Joerg Rueger
Udo Schulz
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of ATE378510T1 publication Critical patent/ATE378510T1/en

Links

Classifications

    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
    • F02M45/08—Injectors peculiar thereto
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

The invention describes a method and an apparatus for charging a piezoelectric element, for example, used as an actuator in a fuel injection system of an internal combustion engine. The method and apparatus are characterized in that the piezoelectric element is activated by an activation voltage, which is corrected for the piezoelectric element's temperature. The piezoelectric element's temperature is determined by loss efficiency. <IMAGE>
AT00106985T 2000-04-01 2000-04-01 DETERMINATION OF THE TEMPERATURE OF A PIEZOELECTRIC ELEMENT AND USE OF THE SAME TO CORRECT THE CONTROL VOLTAGE ATE378510T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00106985A EP1138935B1 (en) 2000-04-01 2000-04-01 Determination of the piezoelectric element temperature and its utilization for correcting the drive voltage

Publications (1)

Publication Number Publication Date
ATE378510T1 true ATE378510T1 (en) 2007-11-15

Family

ID=8168325

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00106985T ATE378510T1 (en) 2000-04-01 2000-04-01 DETERMINATION OF THE TEMPERATURE OF A PIEZOELECTRIC ELEMENT AND USE OF THE SAME TO CORRECT THE CONTROL VOLTAGE

Country Status (4)

Country Link
EP (1) EP1138935B1 (en)
AT (1) ATE378510T1 (en)
DE (1) DE60037104T2 (en)
ES (1) ES2292387T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7102331B2 (en) 2003-01-17 2006-09-05 Black & Decker Inc. Generator with dual cycloconverter for 120/240 VAC operation
DE102008045955A1 (en) 2008-09-04 2010-03-11 Continental Automotive Gmbh Method and device for correcting a temperature-induced change in length of an actuator unit, which is arranged in the housing of a fuel injector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01187345A (en) * 1988-01-20 1989-07-26 Toyota Motor Corp Drive controller for fuel injection controlling piezoelectric element
JP2870324B2 (en) * 1992-10-22 1999-03-17 トヨタ自動車株式会社 Drive circuit for piezoelectric element
DE19723932C1 (en) * 1997-06-06 1998-12-24 Siemens Ag Method for controlling at least one capacitive actuator

Also Published As

Publication number Publication date
EP1138935B1 (en) 2007-11-14
EP1138935A1 (en) 2001-10-04
DE60037104D1 (en) 2007-12-27
ES2292387T3 (en) 2008-03-16
DE60037104T2 (en) 2008-03-20

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Legal Events

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