US20180148877A1 - Control method of washing machine and washing machine - Google Patents

Control method of washing machine and washing machine Download PDF

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Publication number
US20180148877A1
US20180148877A1 US15/561,793 US201615561793A US2018148877A1 US 20180148877 A1 US20180148877 A1 US 20180148877A1 US 201615561793 A US201615561793 A US 201615561793A US 2018148877 A1 US2018148877 A1 US 2018148877A1
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United States
Prior art keywords
washing machine
preset
outer drum
washing
executed
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Abandoned
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US15/561,793
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English (en)
Inventor
Zongrui Chi
Limei Wang
Zuoqiang Li
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.)
Qingdao Haier Drum Washing Machine Co Ltd
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Qingdao Haier Drum Washing Machine Co Ltd
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.)
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Assigned to QINGDAO HAIER DRUM WASHING MACHINE CO., LTD. reassignment QINGDAO HAIER DRUM WASHING MACHINE CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHI, ZONGRUI, LI, Zuoqiang, WANG, LIMEI
Publication of US20180148877A1 publication Critical patent/US20180148877A1/en
Abandoned legal-status Critical Current

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    • 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
    • D06F33/02—
    • 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—Imbalance; 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present disclosure relates to the washing equipment technology, for example, relates to a control method of a washing machine and a washing machine adopting the control method.
  • the eccentric detection process is performed by the washing machine only if the collusion of the drum, or the strong vibration and the displacement of the entire machine occur, so as to reduce the rotating speed of the washing machine and redistribute the loads. Then, the eccentric detection is performed again, and the high-speed operation is restarted.
  • a small vibration which is generally uncontrollable, no eccentric detection process is provided in the procedure, and small vibration is ignored (since the eccentric detection is not accurate at high rotating speed). If a gap between an outer drum and the housing is decreased, the outer drum may also collide with a box body due to the small vibration, causing the noise, the vibration, displacement of the entire machine and the like in the washing machine.
  • a common treatment method is to perform the eccentric detection process only after the rotating speed of a motor is reduced, which apparently fails to meet requirements.
  • a new control method of a washing machine is urgently needed to be provided to solve problems of the washing machine in a high-speed dewatering phase, such as high noise, large vibration of the entire machine, collision of the drum and the like.
  • Embodiments of the present disclosure further propose a washing machine capable of reliably operating and avoiding collision of a drum in a high-speed dewatering phase.
  • inventions of the present disclosure provide a control method of a washing machine.
  • the washing machine includes a master control board, and an acceleration sensor configured to detect vibration of an outer drum.
  • the master control board is configured to, at least in a high-speed dewatering phase, determine whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum, and issue an instruction.
  • a dewatering phase of the washing machine has a low-speed operation phase and the high-speed dewatering phase.
  • the washing machine adopts an eccentric detection method to determine whether to perform load redistribution.
  • the control method may include the following steps:
  • step A1 in the washing machine, executing a dewatering process to enter the low-speed operation phase
  • step B1 in the washing machine, determining whether an eccentric value of the outer drum detected by the eccentric detection method is greater than a preset eccentric value; if the eccentric value of the outer drum is greater than the preset eccentric value, step D1 is executed, otherwise, step C1 is executed;
  • step F1 determining whether timekeeping time reaches or exceeds a preset dewatering time; if the timekeeping time reaches or exceeds the preset dewatering time, dewatering is ended, otherwise, step G1 is executed; and
  • step G1 through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, proceeding to step F1 after load redistribution is performed, otherwise, proceeding to step F1 directly.
  • control method proceeds to step B1 after load redistribution is performed by the washing machine in step D1.
  • step A2 in the washing machine, executing a washing/rinsing process and starting to time;
  • step B2 determining whether timekeeping time reaches or exceeds a preset washing/rinsing time; if the timekeeping time reaches or exceeds the preset washing/rinsing time, washing/rinsing is ended, otherwise step C2 is executed;
  • step D2 through the master control board, obtaining the current vibration level of the outer drum according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and determining whether the current vibration level is greater than the preset level threshold; if the current vibration level is greater than the preset level threshold, step E2 is executed, otherwise proceeding to step B2 directly; and
  • step E2 proceeding to step B2 after load redistribution is performed through the washing machine.
  • inventions of the present disclosure provide a washing machine.
  • the washing machine includes an acceleration sensor configured to detect vibration of an outer drum, and the washing machine is operated according to the above control method of the washing machine.
  • the washing machine may be a drum washing machine.
  • the acceleration sensor is arranged on an outer circumferential wall of the outer drum and is located at a front part of the outer drum.
  • the washing machine may be an impeller washing machine.
  • An acceleration sensor can be arranged on a circumferential part or a bottom of the outer drum, or arranged on a hanger rod of the washing machine.
  • Embodiments of the present disclosure have beneficial effects described below.
  • the control method of the washing machine in the high-speed dewatering phase, it is determined whether to perform load redistribution according to the vibration data, detected by the acceleration sensor, regarding the outer drum, and an instruction is issued.
  • the acceleration sensor can reflect vibration conditions of the outer drum more sensitively, and execute restraint on various uncontrolled vibrations and displacements in advance, thereby increasing operational reliability of the washing machine, avoiding generating collision of the drum and increasing washing efficiency and service life of the washing machine.
  • washing machine provided by embodiments of the present disclosure adopts the above control method, operation is more reliable, thereby effectively avoiding collision of the drum and realizing high washing efficiency and long service life.
  • FIG. 1 is a schematic diagram illustrating an installation position of an acceleration sensor provided by embodiment I of the present disclosure
  • FIG. 2 is a flow chart I illustrating a dewatering control method of a washing machine provided by embodiment I of the present disclosure.
  • FIG. 3 is a flow chart II illustrating a dewatering control method of a washing machine provided by embodiment I of the present disclosure.
  • reference numeral 1 indicates an outer drum
  • reference numeral 2 indicates an acceleration sensor
  • Embodiments of the present disclosure provide a control method of a washing machine.
  • the washing machine includes a master control board, and an acceleration sensor configured to detect vibration of an outer drum.
  • the master control board is configured to, at least in a high-speed dewatering phase, determine whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum, and issue an instruction.
  • the acceleration sensor can reflect vibration conditions of the outer drum more sensitively, and restrain various uncontrolled vibrations and displacements in advance, thereby increasing operational reliability of the washing machine, avoiding the collision of the drum and increasing washing efficiency and service life of the washing machine.
  • the present embodiment provides a drum washing machine and a control method thereof.
  • the drum washing machine includes a master control board, and an acceleration sensor connected with the master control board and configured to detect vibration of an outer drum.
  • the position of the acceleration sensor shall satisfy such a requirement that the vibration of the outer drum can be effectively detected.
  • the acceleration sensor 2 is arranged on an outer circumferential wall of the outer drum 1 and is located at a front part of the outer drum 1 , and can vibrate together with the outer drum 1 , as shown in FIG. 1 .
  • the acceleration sensor 2 does not contact a box body of the washing machine and other components of the washing machine.
  • the acceleration sensor 2 may output vibration data of the outer drum in three directions of orthogonal X axis, Y axis and Z axis to the master control board.
  • a horizontal left-right direction indicates Y axis
  • an up-down direction indicates X axis
  • a horizontal front-rear direction indicates Z axis.
  • the eccentric detection is not accurate in the high-speed dewatering phase. Therefore, in the high-speed dewatering phase, the master control board determines whether to perform load redistribution according to vibration data, detected by the acceleration sensor 2 , regarding the outer drum, and issues an instruction. On the contrary, in the low-speed operation phase, detection results obtained through individually adopting the eccentric detection method and individually adopting the acceleration sensor are very similar. However, through the acceleration sensor 2 , the vibration data can be obtained in real time and fed back to the master control board, thus vibration is detected more accurately. Therefore, a control method combining the above two detection methods can be adopted in the low-speed operation phase.
  • control method of the washing machine includes steps described below.
  • step A1 the washing machine executes a dewatering process, and enters a low-speed operation phase.
  • step B1 the master control board determines whether an eccentric value, detected by the eccentric detection method, of the outer drum 1 is greater than a preset eccentric value. If the eccentric value is greater than the preset eccentric value, the process proceeds to step D1. Otherwise, the process proceeds to step C1.
  • a reference data table of the vibration data and vibration levels as well as a preset level threshold are stored in the master control board.
  • the master control board determines a current vibration level of the outer drum 1 according to the vibration data in three directions of X axis, Y axis and Z axis detected by the acceleration sensor 2 , and determines whether the current vibration level is greater than the preset level threshold. If current vibration level is greater than the preset level threshold, the process proceeds to step D1. Otherwise, the process proceeds to step E1.
  • step D1 the washing machine performs load redistribution, and then the process proceeds to step B1.
  • step E1 the washing machine enters a high-speed dewatering phase to perform high-speed dewatering, and starts to time.
  • step F1 it is determined whether timekeeping time reaches or exceeds a preset dewatering time. If the timekeeping time reaches or exceeds the preset dewatering time, dewatering is ended. Otherwise, the process proceeds to step G1.
  • step G1 the master control board obtains a current vibration level of the outer drum 1 according to the vibration data in three directions of X axis, Y axis and Z axis detected by the acceleration sensor 2 , and determines whether the current vibration level is greater than the preset level threshold. If the current vibration level is greater than the preset level threshold, the process proceeds to step F1 after the load redistribution is performed. Otherwise, the process proceeds to step F1 directly.
  • the method for determining the current vibration level of the outer drum 1 according to the received vibration data in three directions of X axis, Y axis and Z axis in step C1 is not limited.
  • the vibration level may be determined by obtaining the maximum value of the vibration data in three directions and inquiring the reference data table, or by obtaining an average value of the vibration data in three directions and inquiring the reference data table, or by having a modulus value which is a sum of vectors in three directions as the vibration data and inquiring the reference data table, and the like.
  • the acceleration sensor 2 installed on the front part of the outer drum 1 can detect a vibration condition of the outer drum 1 and output a corresponding signal to the master control board.
  • the master control board determines based on the received signal and performs corresponding treatment in advance, thereby preventing the noises, the vibration and the displacement of the entire machine and the like from occurring in the washing machine.
  • the washing machine may issue an alarm.
  • the method includes steps described below.
  • step A1 the washing machine executes a dewatering process, and enters a low-speed operation phase.
  • step b1 it is determined whether the number of load redistribution is greater than N. If the number of load redistribution is greater than N, an alarm is issued. Otherwise, the process proceeds to step b2.
  • step b2 it is determined whether accumulative time of load redistribution is greater than T. If the accumulative time is greater than T, an alarm is issued. Otherwise, the process proceeds to step B1.
  • step B1 the master control board determines whether an eccentric value of the outer drum 1 detected through the eccentric detection method is greater than a preset eccentric value. If the eccentric value is greater than the preset eccentric value, the process proceeds to step D1. Otherwise, the process proceeds to step C1.
  • a corresponding reference data table of the vibration data of the outer drum and vibration levels as well as a preset level threshold are stored in the master control board.
  • the master control board determines a current vibration level of the outer drum 1 according to the received vibration data in three directions of X axis, Y axis and Z axis, and determines whether the current vibration level is greater than the preset level threshold. If current vibration level is greater than the preset level threshold, the process proceeds to step D1. Otherwise, the process proceeds to step E1.
  • step D1 the washing machine performs load redistribution, and then the process proceeds to step B1.
  • step E1 the washing machine enters a high-speed dewatering phase to perform high-speed dewatering, and starts to time.
  • step F1 it is determined whether high-speed dewatering time reaches or exceeds a preset dewatering time. If the high-speed dewatering time reaches or exceeds the preset dewatering time, dewatering is ended. Otherwise, the process proceeds to step G1.
  • step G1 the master control board obtains a current vibration level of the outer drum 1 according to the vibration data, detected by the acceleration sensor 2 , in three directions of X axis, Y axis and Z axis, and determines whether the current vibration level is greater than the preset level threshold. If the current vibration level is greater than the preset level threshold, the process proceeds to step F1 after load redistribution is performed. Otherwise, the process proceeds to step F1 directly.
  • the washing machine may also adopt a control method in which the eccentric detection method and the detection utilizing the acceleration sensor are combined.
  • the control method may include steps described below.
  • step A2 the washing machine executes a washing/rinsing process, and starts to time.
  • step B2 it is determined whether timekeeping time reaches or exceeds a preset washing/rinsing time. If the timekeeping time reaches or exceeds the preset washing/rinsing time, washing/rinsing is ended. Otherwise, the process proceeds to step C2.
  • step C2 the washing machine determines whether a detected eccentric value of the outer drum 1 is greater than a preset eccentric value. If the detected eccentric value of the outer drum 1 is greater than the preset eccentric value, the process proceeds to step E2. Otherwise, the process proceeds to step D2.
  • step D2 the master control board obtains a current vibration level of the outer drum 1 according to the vibration data, detected by the acceleration sensor 2 , of the outer drum, and determines whether the current vibration level is greater than the preset level threshold. If the current vibration level is greater than the preset level threshold, the process proceeds to step E2. Otherwise, the process proceeds to step B2 directly.
  • step E2 the process proceeds to step B2 after the load redistribution is performed by the washing machine.
  • the present embodiment provides an impeller washing machine and a control method thereof.
  • the impeller washing machine includes a master control board, and an acceleration sensor connected with the master control board and configured to detect vibration of an outer drum.
  • the acceleration sensor is arranged on a circumferential part or a bottom of the outer drum, or arranged on a hanger rod of the washing machine.
  • eccentric detection is not accurate in the high-speed dewatering phase. Therefore, in the high-speed dewatering phase, the master control board determines whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum, and issues an instruction.
  • control method of the impeller washing machine in the present embodiment is similar to that of embodiment I, and is not repeated herein.
  • the present disclosure provides a control method for a washing machine and a washing machine adopting the control method.
  • the washing machine includes a master control board and an acceleration sensor configured to detect vibration of an outer drum.
  • the master control board determines whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum, and issues an instruction. Since the washing machine determines whether to perform load redistribution according to vibration data, detected by the acceleration sensor, regarding the outer drum in the high-speed dewatering phase, various uncontrolled vibrations and displacements can be restrained in advance, thereby increasing operational reliability of the washing machine, avoiding generating collision of the drum and increasing washing efficiency and service life of the washing machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
US15/561,793 2015-03-27 2016-03-25 Control method of washing machine and washing machine Abandoned US20180148877A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201510140737.8A CN106149279A (zh) 2015-03-27 2015-03-27 一种洗衣机控制方法及洗衣机
CN201510140737.8 2015-03-27
PCT/CN2016/077389 WO2016155575A1 (zh) 2015-03-27 2016-03-25 一种洗衣机控制方法及洗衣机

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US (1) US20180148877A1 (de)
EP (1) EP3276066A4 (de)
JP (1) JP2018512250A (de)
KR (1) KR20170130588A (de)
CN (1) CN106149279A (de)
WO (1) WO2016155575A1 (de)

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CN110924064A (zh) * 2018-08-30 2020-03-27 青岛海尔智能技术研发有限公司 洗涤数据检测方法、装置和洗衣机
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CN108457040B (zh) * 2017-02-20 2022-07-01 青岛海尔洗涤电器有限公司 一种洗衣机脱水控制方法及洗衣机
CN107703822B (zh) * 2017-10-27 2023-12-22 安徽建筑大学 一种洗衣机振动状态数据处理方法
JP2019111126A (ja) * 2017-12-22 2019-07-11 青島海爾洗衣机有限公司ＱｉｎｇＤａｏ Ｈａｉｅｒ Ｗａｓｈｉｎｇ Ｍａｃｈｉｎｅ Ｃｏ．，Ｌｔｄ． ドラム式洗濯機
JP7252534B2 (ja) * 2018-11-26 2023-04-05 青島海爾洗衣机有限公司 脱水機
CN111485368A (zh) * 2019-01-25 2020-08-04 无锡飞翎电子有限公司 洗衣机及衣物处理装置的脱水方法、装置
KR102578643B1 (ko) * 2019-02-01 2023-09-15 엘지전자 주식회사 세탁기 및 세탁기의 제어방법
CN111932774A (zh) * 2020-07-20 2020-11-13 四川虹美智能科技有限公司 售卖机售出商品识别方法、装置及售卖机
CN113235267B (zh) * 2021-04-27 2023-08-18 海信冰箱有限公司 一种洗衣机脱水控制方法、装置及洗衣机
CN113235266A (zh) * 2021-04-27 2021-08-10 海信（山东）冰箱有限公司 一种洗衣机脱水控制方法、装置及洗衣机
CN113832649A (zh) * 2021-09-30 2021-12-24 无锡飞翎电子有限公司 脱水控制方法、装置、衣物处理设备及存储介质

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EP3276066A1 (de) 2018-01-31
CN106149279A (zh) 2016-11-23

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