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SE0500005D0 - Method and computer program for determining position of a movable core in a coil - Google Patents

Method and computer program for determining position of a movable core in a coil

Info

Publication number
SE0500005D0
SE0500005D0 SE0500005A SE0500005A SE0500005D0 SE 0500005 D0 SE0500005 D0 SE 0500005D0 SE 0500005 A SE0500005 A SE 0500005A SE 0500005 A SE0500005 A SE 0500005A SE 0500005 D0 SE0500005 D0 SE 0500005D0
Authority
SE
Sweden
Prior art keywords
coil
core
computer program
value
determining
Prior art date
Application number
SE0500005A
Other languages
Swedish (sv)
Inventor
Sten Jiewertz
Original Assignee
Scania Cv Abp
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 Scania Cv Abp filed Critical Scania Cv Abp
Priority to SE0500005A priority Critical patent/SE0500005D0/en
Publication of SE0500005D0 publication Critical patent/SE0500005D0/en
Priority to GB0711099A priority patent/GB2435772B/en
Priority to PCT/SE2005/002032 priority patent/WO2006073349A1/en
Priority to DE112005003242.6T priority patent/DE112005003242B8/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/04—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/2013—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by a movable ferromagnetic element, e.g. a core

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

A method in a vehicle, a computer program, a computer program product and a vehicle (A) for determining position of a movable operating mechanism (1) connected to a core (2) in a coil (3), comprising the steps of: generating intervals of shorter pulses and intervals of wider pulses to repeatedly close a switch (4), measuring time for the voltage to reach a predetermined limit value every time the switch is closed, determining, in response to the measured time, a coarse value of the position of the movable core, measuring at the intervals of wider pulses the voltage at maximum steady-state value of the current through the coil, determining, in response to the measured voltage at maximum steady-state value, a coil temperature compensation coefficient, and compensating the coarse value of the position of the core with the coefficient to obtain a fine value of the position of the core.
SE0500005A 2005-01-03 2005-01-03 Method and computer program for determining position of a movable core in a coil SE0500005D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE0500005A SE0500005D0 (en) 2005-01-03 2005-01-03 Method and computer program for determining position of a movable core in a coil
GB0711099A GB2435772B (en) 2005-01-03 2005-12-22 Method and computer program for determining position of a movable core in a coil
PCT/SE2005/002032 WO2006073349A1 (en) 2005-01-03 2005-12-22 Method and computer program for determining position of a movable core in a coil
DE112005003242.6T DE112005003242B8 (en) 2005-01-03 2005-12-22 Method and computer program for determining the position of a movable core in a coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0500005A SE0500005D0 (en) 2005-01-03 2005-01-03 Method and computer program for determining position of a movable core in a coil

Publications (1)

Publication Number Publication Date
SE0500005D0 true SE0500005D0 (en) 2005-01-03

Family

ID=34132483

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0500005A SE0500005D0 (en) 2005-01-03 2005-01-03 Method and computer program for determining position of a movable core in a coil

Country Status (4)

Country Link
DE (1) DE112005003242B8 (en)
GB (1) GB2435772B (en)
SE (1) SE0500005D0 (en)
WO (1) WO2006073349A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5813232B2 (en) * 2012-12-11 2015-11-17 三菱電機株式会社 Mover position detector for electromagnetic actuator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126846B1 (en) * 1983-04-21 1990-08-01 WABCO Westinghouse Fahrzeugbremsen GmbH Inductive sensor
DE3620137A1 (en) * 1986-06-14 1987-12-17 Raimund Wilhelm SCREW MACHINE AND METHOD FOR THEIR OPERATION
DE3807015A1 (en) * 1987-04-29 1988-11-10 Wabco Westinghouse Fahrzeug METHOD AND CIRCUIT FOR MEASURING AN INDUCTIVITY
DE4118975A1 (en) * 1991-06-08 1992-12-10 Vdo Schindling Detecting position of core of electromagnetic control element - determining time required for current produced by pulses superimposed on control voltage to achieve defined change
DE4141065A1 (en) * 1991-12-13 1993-06-17 Vdo Schindling METHOD FOR TEMPERATURE COMPENSATION OF INDUCTIVE SENSORS
DE4208399A1 (en) * 1992-03-16 1993-09-23 Knorr Bremse Ag METHOD AND MEASURING DEVICE FOR MEASURING THE TIME CONSTANT OF AN ELECTRICAL SENSOR
DE4334844C1 (en) * 1993-10-13 1994-10-27 Grau Gmbh Circuit for determining the travel (displacement) of a core, which can be displaced in a coil, by measuring the inductance
JP3587714B2 (en) * 1999-03-03 2004-11-10 本田技研工業株式会社 Displacement detector
SE520176C2 (en) * 1999-05-24 2003-06-03 Volvo Lastvagnar Ab Method and device for position detection by means of an inductive position sensor

Also Published As

Publication number Publication date
DE112005003242B4 (en) 2016-01-07
DE112005003242B8 (en) 2016-03-17
GB2435772A (en) 2007-09-05
DE112005003242T5 (en) 2007-11-08
WO2006073349A1 (en) 2006-07-13
GB0711099D0 (en) 2007-07-18
GB2435772B (en) 2008-12-24

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