US20090300854A1 - Method of compensating power failure of washing machine - Google Patents
Method of compensating power failure of washing machine Download PDFInfo
- Publication number
- US20090300854A1 US20090300854A1 US12/480,857 US48085709A US2009300854A1 US 20090300854 A1 US20090300854 A1 US 20090300854A1 US 48085709 A US48085709 A US 48085709A US 2009300854 A1 US2009300854 A1 US 2009300854A1
- Authority
- US
- United States
- Prior art keywords
- cycle
- power supply
- washing machine
- power failure
- interrupted
- 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.)
- Abandoned
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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
- 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
- D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps
-
- 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
- D06F34/10—Power supply arrangements, e.g. stand-by circuits
-
- 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
- D06F2103/68—Operation mode; Program phase
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/50—Starting machine operation, e.g. delayed start or re-start after power cut
-
- 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
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- 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
- D06F33/46—Control of the energy or water consumption
Definitions
- the present invention relates to a washing machine and, more particularly, to a method of compensating power failure of a washing machine to allow operation of the washing machine to restart from a cycle, which has been stopped due to power failure, when power supply is restarted after the power failure.
- FIG. 1 is a sectional view of a typical drum washing machine.
- the drum washing machine includes a cabinet 1 , a tub 2 disposed inside the cabinet 1 to receive wash water, a drum 3 rotatably disposed inside the tub 2 to receive laundry, a drive motor 4 rotating the drum 3 , a water supply device 5 supplying wash water to the tub 2 , and a drainage device 7 draining the wash water from the tub 2 to an outside of the cabinet 1 .
- wash water is supplied into the tub 2 by the water supply device 5 connected to a water source (not shown) outside the cabinet 1 . Then, the drum 3 is rotated by the drive motor 4 to perform the selected cycle.
- the washing machine when power is resupplied to the washing machine after power failure, the washing machine does not remember a cycle performed prior to power failure and returns back to an initial state, thereby suffering energy loss and damage of laundry caused by repetition of an unnecessary cycle.
- the present invention is conceived to solve the problems as described above, and an aspect of the present invention is to provide a method of compensating power failure of a washing machine to allow operation of the washing machine to restart from a cycle, which has been stopped due to power failure, when power supply is restarted after the power failure.
- a method of compensating power failure of a washing machine includes performing a selected cycle; determining whether power supply is interrupted during the selected cycle; storing information of a current performed cycle in a memory if the power supply is interrupted; determining whether the power supply is restarted; and restarting the stored cycle if the power supply is restarted.
- the restarting the stored cycle may include performing the stored cycle from an initial stage of the stored cycle.
- the method may further include continuously performing the current performed cycle if the power supply is not interrupted.
- Interruption of the power supply may be determined according to whether a pulse by an alternating power is interrupted for a preset period of time.
- FIG. 1 is a sectional view of a conventional drum washing machine
- FIG. 2 is a block diagram of a drum washing machine according to one embodiment of the present invention.
- FIG. 3 is a flowchart of a method of compensating power failure of a washing machine according to one embodiment of the present invention.
- FIG. 2 is a block diagram of a drum washing machine according to one embodiment of the present invention
- FIG. 3 is a flowchart of a method of compensating power failure of a washing machine according to one embodiment of the present invention.
- the method of compensating power failure of a washing machine includes performing a selected cycle with power supplied from a power supply unit 10 to a drive motor 4 and a controller 50 in S 10 ; determining whether power supply to the washing machine is interrupted in S 20 ; storing information of a current performed cycle in a memory 52 if the power supply is interrupted in S 30 ; determining whether the power supply to the washing machine is restarted in S 40 ; and restarting the current performed cycle stored in the memory 52 if the power supply is restarted in S 50 or continuously performing the current selected cycle if the power supply is not interrupted in S 60 .
- the controller 50 While performing the selected cycle in S 10 , the controller 50 continuously determines whether power failure occurs to interrupt power supply to the washing machine in S 20 .
- interruption of the power supply is determined according to whether a pulse by an alternating power is interrupted for a preset period of time while the selected cycle is performed in S 10 .
- the preset period of time is 1 second.
- the controller 50 determines that power failure occurs when a pulse generated by a certain frequency of the alternating current supplied to the washing machine is interrupted for 1 second.
- the preset period of time is set to 1 second in this embodiment, the present invention is not limited thereto.
- the washing machine can detect even momentary power failure, thereby enabling compensation for the momentary power failure.
- the controller 50 allows the washing machine to perform the current performed cycle in S 60 , and terminates the washing operation after completing the selected cycle.
- information of the current performed cycle is stored in the memory 52 in S 30 .
- the current cycle is a washing cycle
- information of the washing cycle is stored in the memory 52
- the current cycle is a spin-drying cycle
- information of the spin-drying cycle is stored in the memory 52 .
- the information of the current cycle includes the kind of the cycle, elapsed time of the cycle, remaining time of the cycle, and the like.
- the controller 50 determines whether the power supply to the washing machine is restarted in S 40 . In other words, when the power supply is restarted, power is also supplied from the power supply unit 10 to the controller 50 , so that the controller 50 can immediately detect power resupply.
- the controller 50 restarts the cycle, which has been stopped due to the power failure, using the information of the cycle stored in the memory 52 , in S 50 . Then, the controller 50 terminates the washing operation after completing the selected cycle. At this time, the restarted cycle is performed from an initial course of the performed cycle.
- the spin-drying cycle is divided into a preliminary spin-drying course in which the drum 3 is rotated at a low speed to allow laundry to be uniformly distributed in the drum 3 , and a main spin-drying course in which the drum 3 is rotated at a high speed to remove moisture from the laundry.
- a preliminary spin-drying course in which the drum 3 is rotated at a low speed to allow laundry to be uniformly distributed in the drum 3
- a main spin-drying course in which the drum 3 is rotated at a high speed to remove moisture from the laundry.
- the cycle stored in the memory is a main course of the cycle
- a preliminary course of the cycle as an initial stage of the cycle is performed before a main course of the cycle, thereby reducing noise and vibration, which can be generated when directly restarting the main course of the cycle.
- operation of the washing machine can be restarted from a cycle which has been stopped due to power failure, when power supply is restarted after the power failure, so that the washing machine can suppress repetition of an unnecessary cycle, thereby preventing damage of laundry while reducing time and cost for washing operation.
- a preliminary course of a cycle stored in a memory is performed before a main course of the cycle, thereby reducing noise and vibration of the washing machine, which can be generated upon restarting the cycle by resupply of power.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Disclosed herein is a method of compensating power failure of a washing machine. The method includes performing a selected cycle, determining whether power supply is interrupted during the selected cycle, storing information of a current performed cycle in a memory if the power supply is interrupted, determining whether the power supply is restarted, and restarting the stored cycle if the power supply is restarted.
Description
- The present application claims priority to Korean patent application number 10-2008-0053875, filed on Jun. 9, 2008, which is incorporated by reference in its entirety.
- 1. Field of the Invention
- The present invention relates to a washing machine and, more particularly, to a method of compensating power failure of a washing machine to allow operation of the washing machine to restart from a cycle, which has been stopped due to power failure, when power supply is restarted after the power failure.
- 2. Description of the Related Art
-
FIG. 1 is a sectional view of a typical drum washing machine. Referring toFIG. 1 , the drum washing machine includes a cabinet 1, atub 2 disposed inside the cabinet 1 to receive wash water, adrum 3 rotatably disposed inside thetub 2 to receive laundry, adrive motor 4 rotating thedrum 3, awater supply device 5 supplying wash water to thetub 2, and adrainage device 7 draining the wash water from thetub 2 to an outside of the cabinet 1. - When a user turns on the washing machine and selects a desired cycle with laundry received in the
drum 3, wash water is supplied into thetub 2 by thewater supply device 5 connected to a water source (not shown) outside the cabinet 1. Then, thedrum 3 is rotated by thedrive motor 4 to perform the selected cycle. - In a conventional method of operating the washing machine, when power is resupplied to the washing machine after power failure, the washing machine does not remember a cycle performed prior to power failure and returns back to an initial state, thereby suffering energy loss and damage of laundry caused by repetition of an unnecessary cycle.
- Therefore, there is a need to solve such problems of the washing machine.
- The present invention is conceived to solve the problems as described above, and an aspect of the present invention is to provide a method of compensating power failure of a washing machine to allow operation of the washing machine to restart from a cycle, which has been stopped due to power failure, when power supply is restarted after the power failure.
- In accordance with one aspect of the present invention, a method of compensating power failure of a washing machine includes performing a selected cycle; determining whether power supply is interrupted during the selected cycle; storing information of a current performed cycle in a memory if the power supply is interrupted; determining whether the power supply is restarted; and restarting the stored cycle if the power supply is restarted.
- The restarting the stored cycle may include performing the stored cycle from an initial stage of the stored cycle.
- The method may further include continuously performing the current performed cycle if the power supply is not interrupted.
- Interruption of the power supply may be determined according to whether a pulse by an alternating power is interrupted for a preset period of time.
- The above and other aspects, features, and advantages of the present invention will become apparent from the following detailed description in conjunction with the accompanying drawings, in which:
-
FIG. 1 is a sectional view of a conventional drum washing machine; -
FIG. 2 is a block diagram of a drum washing machine according to one embodiment of the present invention; and -
FIG. 3 is a flowchart of a method of compensating power failure of a washing machine according to one embodiment of the present invention. - Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Herein, the present invention will be described with reference to a drum washing machine as an example. It should be noted that the drawings are not to precise scale and may be exaggerated in thickness of lines or size of components for descriptive convenience and clarity. Furthermore, the terms used herein are defined by taking functions of the present invention into account and can be changed according to the custom or intention of users or operators. Therefore, definition of the terms should be made according to the overall disclosures set forth herein.
-
FIG. 2 is a block diagram of a drum washing machine according to one embodiment of the present invention, andFIG. 3 is a flowchart of a method of compensating power failure of a washing machine according to one embodiment of the present invention. - Referring to
FIGS. 2 and 3 , the method of compensating power failure of a washing machine according to this embodiment includes performing a selected cycle with power supplied from apower supply unit 10 to adrive motor 4 and acontroller 50 in S10; determining whether power supply to the washing machine is interrupted in S20; storing information of a current performed cycle in amemory 52 if the power supply is interrupted in S30; determining whether the power supply to the washing machine is restarted in S40; and restarting the current performed cycle stored in thememory 52 if the power supply is restarted in S50 or continuously performing the current selected cycle if the power supply is not interrupted in S60. - When performing the selected cycle in S10, at least one of a washing cycle, a rinsing cycle, and a spin-drying cycle selected through an operation panel (not shown) by a user is performed. The respective cycles are individually or sequentially performed according to user selection.
- While performing the selected cycle in S10, the
controller 50 continuously determines whether power failure occurs to interrupt power supply to the washing machine in S20. Here, interruption of the power supply is determined according to whether a pulse by an alternating power is interrupted for a preset period of time while the selected cycle is performed in S10. In this embodiment, the preset period of time is 1 second. Accordingly, in S20, thecontroller 50 determines that power failure occurs when a pulse generated by a certain frequency of the alternating current supplied to the washing machine is interrupted for 1 second. Although the preset period of time is set to 1 second in this embodiment, the present invention is not limited thereto. Thus, when the preset period of time is set shorter than 1 second, the washing machine can detect even momentary power failure, thereby enabling compensation for the momentary power failure. - If it is determined that the power supply is not interrupted, the
controller 50 allows the washing machine to perform the current performed cycle in S60, and terminates the washing operation after completing the selected cycle. - If the power supply is not interrupted, information of the current performed cycle is stored in the
memory 52 in S30. For example, if the current cycle is a washing cycle, information of the washing cycle is stored in thememory 52, and if the current cycle is a spin-drying cycle, information of the spin-drying cycle is stored in thememory 52. Here, the information of the current cycle includes the kind of the cycle, elapsed time of the cycle, remaining time of the cycle, and the like. - The
controller 50 determines whether the power supply to the washing machine is restarted in S40. In other words, when the power supply is restarted, power is also supplied from thepower supply unit 10 to thecontroller 50, so that thecontroller 50 can immediately detect power resupply. - If the power supply is restarted, the
controller 50 restarts the cycle, which has been stopped due to the power failure, using the information of the cycle stored in thememory 52, in S50. Then, thecontroller 50 terminates the washing operation after completing the selected cycle. At this time, the restarted cycle is performed from an initial course of the performed cycle. - For example, the spin-drying cycle is divided into a preliminary spin-drying course in which the
drum 3 is rotated at a low speed to allow laundry to be uniformly distributed in thedrum 3, and a main spin-drying course in which thedrum 3 is rotated at a high speed to remove moisture from the laundry. If power failure occurs during the main spin-drying course, an initial course of the spin-drying cycle, that is, the preliminary spin-drying course, is newly started when power supply is restarted. As a result, the laundry can be uniformly distributed in thedrum 3 before the main spin-drying course performed at a high speed, thereby reducing noise and vibration caused by non-uniform distribution of the laundry during the spin-drying cycle. - As such, if the cycle stored in the memory is a main course of the cycle, a preliminary course of the cycle as an initial stage of the cycle is performed before a main course of the cycle, thereby reducing noise and vibration, which can be generated when directly restarting the main course of the cycle.
- As apparent from the above description, according to one embodiment of the invention, operation of the washing machine can be restarted from a cycle which has been stopped due to power failure, when power supply is restarted after the power failure, so that the washing machine can suppress repetition of an unnecessary cycle, thereby preventing damage of laundry while reducing time and cost for washing operation.
- Further, according to one embodiment, a preliminary course of a cycle stored in a memory is performed before a main course of the cycle, thereby reducing noise and vibration of the washing machine, which can be generated upon restarting the cycle by resupply of power.
- Although some embodiments have been provided to illustrate the present invention in conjunction with the accompanying drawings, it will be apparent to those skilled in the art that the embodiments are given by way of illustration only, and that various modifications and equivalent embodiments can be made without departing from the spirit and scope of the present invention. Further, the description of the drum washing machine as provided herein is only one example of the present invention, and the present invention can be applied to other products. Accordingly, the scope and spirit of the present invention should be limited only by the following claims.
Claims (4)
1. A method of compensating power failure of a washing machine, comprising:
performing a selected cycle;
determining whether power supply is interrupted during the selected cycle;
storing information of a current performed cycle in a memory if the power supply is interrupted;
determining whether the power supply is restarted; and
restarting the stored cycle if the power supply is restarted.
2. The method according to claim 1 , wherein the restarting the stored cycle comprises performing the stored cycle from an initial stage of the stored cycle.
3. The method according to claim 1 , further comprising
continuously performing the current performed cycle if the power supply is not interrupted.
4. The method according to claim 1 , wherein interruption of the power supply is determined according to whether a pulse by an alternating power is interrupted for a preset period of time.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2008-0053875 | 2008-06-09 | ||
KR20080053875 | 2008-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090300854A1 true US20090300854A1 (en) | 2009-12-10 |
Family
ID=41398967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/480,857 Abandoned US20090300854A1 (en) | 2008-06-09 | 2009-06-09 | Method of compensating power failure of washing machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090300854A1 (en) |
EP (1) | EP2316995A4 (en) |
KR (1) | KR101603335B1 (en) |
CN (1) | CN102057097B (en) |
WO (1) | WO2009151239A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011157672A1 (en) * | 2010-06-15 | 2011-12-22 | BSH Bosch und Siemens Hausgeräte GmbH | Washing machine and method for operation of a washing machine |
JP2013063096A (en) * | 2011-09-15 | 2013-04-11 | Toshiba Corp | Washing machine |
JP2013081701A (en) * | 2011-10-12 | 2013-05-09 | Toshiba Corp | Washing machine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102720035A (en) * | 2012-05-28 | 2012-10-10 | 合肥荣事达三洋电器股份有限公司 | Power off memory circuit and power off memory method for full-automatic impeller type washing machine |
JP6209743B2 (en) * | 2014-11-26 | 2017-10-11 | パナソニックIpマネジメント株式会社 | Washing machine |
CN108729111B (en) * | 2017-04-24 | 2020-08-04 | 青岛海尔滚筒洗衣机有限公司 | Washing machine control method and washing machine |
CN113818185B (en) * | 2020-06-19 | 2023-11-03 | 天津海尔洗涤电器有限公司 | Control method and system based on power failure memory and clothes treatment equipment |
Citations (2)
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GB1529691A (en) * | 1975-01-11 | 1978-10-25 | Servis Domestic Appliances Ltd | Washing machine electronic controls |
US20080010195A1 (en) * | 2006-05-26 | 2008-01-10 | Lg Electronics Inc. | Power failure compensation method of laundry room machine and machine therefor |
Family Cites Families (8)
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GB2072381B (en) * | 1980-03-21 | 1983-12-07 | Philips Nv | Computer controlled apparatus operated in the case of a power failure |
GB2145253A (en) * | 1983-08-17 | 1985-03-20 | Philips Electronic Associated | Method of controlling a domestic appliance |
KR950003530B1 (en) * | 1992-07-02 | 1995-04-14 | 제일제당 주식회사 | Edible oil |
JPH07275561A (en) * | 1994-04-08 | 1995-10-24 | Toshiba Corp | Washing machine |
KR0162355B1 (en) * | 1995-06-19 | 1999-01-15 | 구자홍 | Control method for compensation of power failure of a washing machine |
KR19990011057A (en) * | 1997-07-21 | 1999-02-18 | 구자홍 | Residual washing stroke control device for automatic washing machine and control method |
KR100282341B1 (en) * | 1998-11-17 | 2001-02-15 | 구자홍 | Power failure compensation method of automatic washing machine |
KR20070065126A (en) * | 2005-12-19 | 2007-06-22 | 주식회사 대우일렉트로닉스 | Apparatus for compensating interruption of electric power of a washing machine |
-
2009
- 2009-06-08 WO PCT/KR2009/003050 patent/WO2009151239A2/en active Application Filing
- 2009-06-08 EP EP09762626.1A patent/EP2316995A4/en not_active Withdrawn
- 2009-06-08 KR KR1020090050539A patent/KR101603335B1/en active IP Right Grant
- 2009-06-08 CN CN2009801213163A patent/CN102057097B/en not_active Expired - Fee Related
- 2009-06-09 US US12/480,857 patent/US20090300854A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1529691A (en) * | 1975-01-11 | 1978-10-25 | Servis Domestic Appliances Ltd | Washing machine electronic controls |
US20080010195A1 (en) * | 2006-05-26 | 2008-01-10 | Lg Electronics Inc. | Power failure compensation method of laundry room machine and machine therefor |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011157672A1 (en) * | 2010-06-15 | 2011-12-22 | BSH Bosch und Siemens Hausgeräte GmbH | Washing machine and method for operation of a washing machine |
CN102947500A (en) * | 2010-06-15 | 2013-02-27 | Bsh博世和西门子家用电器有限公司 | Washing machine and method for operation of a washing machine |
EA025001B1 (en) * | 2010-06-15 | 2016-11-30 | Бсх Хаусгерете Гмбх | Method of operating a laundry treatment appliance and laundry treatment appliance |
JP2013063096A (en) * | 2011-09-15 | 2013-04-11 | Toshiba Corp | Washing machine |
JP2013081701A (en) * | 2011-10-12 | 2013-05-09 | Toshiba Corp | Washing machine |
Also Published As
Publication number | Publication date |
---|---|
WO2009151239A3 (en) | 2010-03-11 |
EP2316995A2 (en) | 2011-05-04 |
KR20090127822A (en) | 2009-12-14 |
CN102057097B (en) | 2012-11-14 |
CN102057097A (en) | 2011-05-11 |
EP2316995A4 (en) | 2014-01-08 |
WO2009151239A2 (en) | 2009-12-17 |
KR101603335B1 (en) | 2016-03-15 |
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Owner name: DAEWOO ELECTRONICS CORPORATION, KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PARK, JOON HYO;REEL/FRAME:022819/0582 Effective date: 20090605 |
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Owner name: DAEWOO ELECTRONICS CORPORATION, KOREA, DEMOCRATIC Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KANG, SUNG KOO;REEL/FRAME:023130/0458 Effective date: 20090603 |
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STCB | Information on status: application discontinuation |
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