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WO2019074370A3 - Method and device for providing information on an annular displacement of a dc electromotor - Google Patents

Method and device for providing information on an annular displacement of a dc electromotor Download PDF

Info

Publication number
WO2019074370A3
WO2019074370A3 PCT/NL2018/050673 NL2018050673W WO2019074370A3 WO 2019074370 A3 WO2019074370 A3 WO 2019074370A3 NL 2018050673 W NL2018050673 W NL 2018050673W WO 2019074370 A3 WO2019074370 A3 WO 2019074370A3
Authority
WO
WIPO (PCT)
Prior art keywords
electromotor
pulses
amount
rotor
counted
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.)
Ceased
Application number
PCT/NL2018/050673
Other languages
French (fr)
Other versions
WO2019074370A2 (en
Inventor
Jinku HU
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.)
MCi Mirror Controls International Netherlands BV
Original Assignee
MCi Mirror Controls International Netherlands BV
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
Priority claimed from NL2019723A external-priority patent/NL2019723B1/en
Application filed by MCi Mirror Controls International Netherlands BV filed Critical MCi Mirror Controls International Netherlands BV
Priority to KR1020207013608A priority Critical patent/KR102664789B1/en
Priority to US16/755,347 priority patent/US11592456B2/en
Priority to CN201880074951.XA priority patent/CN111356929A/en
Priority to EP18812345.9A priority patent/EP3695232B1/en
Priority to JP2020520507A priority patent/JP2020537142A/en
Publication of WO2019074370A2 publication Critical patent/WO2019074370A2/en
Publication of WO2019074370A3 publication Critical patent/WO2019074370A3/en
Anticipated expiration legal-status Critical
Priority to JP2022129309A priority patent/JP2022163189A/en
Priority to US17/988,496 priority patent/US11808782B2/en
Priority to JP2022198586A priority patent/JP7321350B2/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/489—Digital circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

Driving an electromotor and a brushed electromotor in particular results in ripples in the supply current. The amount of pulses is proportional to the amount of revolutions of the rotor of the electromotor. With a flawless motor, the amount of pulses is the same with each revolution. Flaws of the electromotor, in brushes, rotor, windings and/or other components, results in fluctuations of pulses in the supply current per revolution of the rotor. By comparing an expected amount of pulses to counted pulses and using various physical parameters of the electromotor, various methods may be employed to correct a counted amount of pulses or otherwise provide an appropriate value representing displacement of the rotor of the electromotor. Criteria are established which determine when a pulse should be counted, e.g. if it occurs at within an expected time period, or if the sum of the product of sampled supply current and supply voltage values corresponds to a predetermined value. Pulses which are The time between counted pulses may also be used for determining slip of a slip coupling comprised by a drive train to which the electromotor may be coupled.
PCT/NL2018/050673 2017-10-13 2018-10-12 Method and device for providing information on an annular displacement of a dc electromotor Ceased WO2019074370A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
KR1020207013608A KR102664789B1 (en) 2017-10-13 2018-10-12 Method and apparatus for providing information regarding annular displacement of a DC electric motor
US16/755,347 US11592456B2 (en) 2017-10-13 2018-10-12 Method and device for providing information on an angular displacement of a dc electromotor
CN201880074951.XA CN111356929A (en) 2017-10-13 2018-10-12 Method and device for providing information about the annular displacement of a DC motor
EP18812345.9A EP3695232B1 (en) 2017-10-13 2018-10-12 Method and device for providing information on an annular displacement of a dc electromotor
JP2020520507A JP2020537142A (en) 2017-10-13 2018-10-12 Methods and devices for providing information on rotational displacement of DC electric motors
JP2022129309A JP2022163189A (en) 2017-10-13 2022-08-15 Method and apparatus for providing information about rotational displacement of a DC electric motor
US17/988,496 US11808782B2 (en) 2017-10-13 2022-11-16 Method and device for providing information on an angular displacement of a DC electromotor
JP2022198586A JP7321350B2 (en) 2017-10-13 2022-12-13 Method and apparatus for providing information about rotational displacement of a DC electric motor

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL2019723 2017-10-13
NL2019723A NL2019723B1 (en) 2017-10-13 2017-10-13 Method and device for providing information on an annular displacement of a DC electromotor
NL2020654 2018-03-23
NL2020654A NL2020654B1 (en) 2017-10-13 2018-03-23 Method and device for providing information on an annular displacement of a DC electromotor

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/755,347 A-371-Of-International US11592456B2 (en) 2017-10-13 2018-10-12 Method and device for providing information on an angular displacement of a dc electromotor
US17/988,496 Continuation US11808782B2 (en) 2017-10-13 2022-11-16 Method and device for providing information on an angular displacement of a DC electromotor

Publications (2)

Publication Number Publication Date
WO2019074370A2 WO2019074370A2 (en) 2019-04-18
WO2019074370A3 true WO2019074370A3 (en) 2019-05-23

Family

ID=64572432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2018/050673 Ceased WO2019074370A2 (en) 2017-10-13 2018-10-12 Method and device for providing information on an annular displacement of a dc electromotor

Country Status (1)

Country Link
WO (1) WO2019074370A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2019723B1 (en) 2017-10-13 2019-04-23 Mci Mirror Controls Int Netherlands B V Method and device for providing information on an annular displacement of a DC electromotor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744041A (en) * 1985-03-04 1988-05-10 International Business Machines Corporation Method for testing DC motors
US6144179A (en) * 1997-07-09 2000-11-07 Temic Telefunken Microelectronic Gmbh Method for establishing the rotational speed of mechanically commutated d.c. motors
US20080298784A1 (en) * 2007-06-04 2008-12-04 Mark Allen Kastner Method of Sensing Speed of Electric Motors and Generators
US20090254300A1 (en) * 2008-04-08 2009-10-08 Schneider Philip K System and method for determining position or speed of a commutated DC motor with error correction
US8169178B2 (en) * 2008-12-30 2012-05-01 Stmicroelectronics S.R.L. Detection of the angular position of the rotor of a brush motor without using sensors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016080834A2 (en) 2014-11-19 2016-05-26 Mci (Mirror Controls International) Netherlands B.V. Automatically adjustable mirror assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744041A (en) * 1985-03-04 1988-05-10 International Business Machines Corporation Method for testing DC motors
US6144179A (en) * 1997-07-09 2000-11-07 Temic Telefunken Microelectronic Gmbh Method for establishing the rotational speed of mechanically commutated d.c. motors
US20080298784A1 (en) * 2007-06-04 2008-12-04 Mark Allen Kastner Method of Sensing Speed of Electric Motors and Generators
US20090254300A1 (en) * 2008-04-08 2009-10-08 Schneider Philip K System and method for determining position or speed of a commutated DC motor with error correction
US8169178B2 (en) * 2008-12-30 2012-05-01 Stmicroelectronics S.R.L. Detection of the angular position of the rotor of a brush motor without using sensors

Also Published As

Publication number Publication date
WO2019074370A2 (en) 2019-04-18

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