EP1048774A3 - Method and device for detecting unbalance in a rotor driven by a brushless electric motor - Google Patents

Method and device for detecting unbalance in a rotor driven by a brushless electric motor Download PDF

Info

Publication number
EP1048774A3
EP1048774A3 EP00108260A EP00108260A EP1048774A3 EP 1048774 A3 EP1048774 A3 EP 1048774A3 EP 00108260 A EP00108260 A EP 00108260A EP 00108260 A EP00108260 A EP 00108260A EP 1048774 A3 EP1048774 A3 EP 1048774A3
Authority
EP
European Patent Office
Prior art keywords
electric motor
brushless electric
rotor driven
rotor
detecting unbalance
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.)
Granted
Application number
EP00108260A
Other languages
German (de)
French (fr)
Other versions
EP1048774A2 (en
EP1048774B1 (en
Inventor
Falko Abel
Hans-Wilhelm Klein
Rainer Münzner
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1048774A2 publication Critical patent/EP1048774A2/en
Publication of EP1048774A3 publication Critical patent/EP1048774A3/en
Application granted granted Critical
Publication of EP1048774B1 publication Critical patent/EP1048774B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08—Control circuits or arrangements thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/16—Imbalance
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26—Unbalance; Noise level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum

Abstract

A measuring device registers the rotation speeed (n) and the imbalance of the rotor. When a minimum speed of the rotor is exceeded, an electrical parameter of the motor is adjusted. The electrical parameter is preferably the voltage (U) and is altered from its extent set for operation to an extent provid for a measurement in such a way that the slope of the characteristic curve of speed-torsion increases accordingly.
EP00108260A 1999-04-22 2000-04-14 Method and device for detecting unbalance in a rotor driven by a brushless electric motor Expired - Lifetime EP1048774B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19918331A DE19918331A1 (en) 1999-04-22 1999-04-22 Method and device for detecting unbalance in a rotor driven by a brushless electric motor
DE19918331 1999-04-22

Publications (3)

Publication Number Publication Date
EP1048774A2 EP1048774A2 (en) 2000-11-02
EP1048774A3 true EP1048774A3 (en) 2001-02-07
EP1048774B1 EP1048774B1 (en) 2004-03-17

Family

ID=7905529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108260A Expired - Lifetime EP1048774B1 (en) 1999-04-22 2000-04-14 Method and device for detecting unbalance in a rotor driven by a brushless electric motor

Country Status (4)

Country Link
EP (1) EP1048774B1 (en)
AT (1) ATE262064T1 (en)
DE (2) DE19918331A1 (en)
ES (1) ES2218022T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100314179B1 (en) * 1999-03-26 2001-11-15 윤종용 unbalance sensing apparatus of a washing machice and method thereof
DE10202352C1 (en) * 2002-01-23 2003-07-10 Miele & Cie Operating control for washing machine has drive with programmable motor for drum speed
DE10234053C1 (en) 2002-07-26 2003-11-20 Diehl Ako Stiftung Gmbh & Co Imbalance detection method for washing machine drum using variations in power requirement of drive motor providing drum rotation
DE10331934B3 (en) * 2003-07-15 2004-10-28 Danfoss Drives A/S Control method for washing machine motor using temperature-related operating parameter for adjustment of electrical energy supplied to motor
DE102004053216B3 (en) * 2004-06-18 2006-02-09 Diehl Ako Stiftung & Co. Kg Device for detecting a swinging movement of a laundry drum

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0349798A2 (en) * 1988-07-07 1990-01-10 Miele & Cie. GmbH & Co. Method to control the spinning phase in a washing machine
EP0565157A1 (en) * 1992-03-20 1993-10-13 Philips Patentverwaltung GmbH Method for the detection and compensation of an unbalance of a motor driven rotor
US5543698A (en) * 1994-09-27 1996-08-06 Allen-Bradley Company, Inc. Method and apparatus used with AC motor for detecting unbalance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0349798A2 (en) * 1988-07-07 1990-01-10 Miele & Cie. GmbH & Co. Method to control the spinning phase in a washing machine
EP0565157A1 (en) * 1992-03-20 1993-10-13 Philips Patentverwaltung GmbH Method for the detection and compensation of an unbalance of a motor driven rotor
US5543698A (en) * 1994-09-27 1996-08-06 Allen-Bradley Company, Inc. Method and apparatus used with AC motor for detecting unbalance

Also Published As

Publication number Publication date
DE19918331A1 (en) 2000-10-26
EP1048774A2 (en) 2000-11-02
ATE262064T1 (en) 2004-04-15
DE50005643D1 (en) 2004-04-22
EP1048774B1 (en) 2004-03-17
ES2218022T3 (en) 2004-11-16

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