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WO2014190567A1 - Procédé de détermination du poids de charge d'une machine à laver à pulsateur - Google Patents

Procédé de détermination du poids de charge d'une machine à laver à pulsateur Download PDF

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Publication number
WO2014190567A1
WO2014190567A1 PCT/CN2013/077206 CN2013077206W WO2014190567A1 WO 2014190567 A1 WO2014190567 A1 WO 2014190567A1 CN 2013077206 W CN2013077206 W CN 2013077206W WO 2014190567 A1 WO2014190567 A1 WO 2014190567A1
Authority
WO
WIPO (PCT)
Prior art keywords
washing machine
load
weighing
weight
load weight
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/CN2013/077206
Other languages
English (en)
Chinese (zh)
Inventor
熊明
王娜娜
周存玲
周福昌
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.)
Wuxi Little Swan Co Ltd
Original Assignee
Wuxi Little Swan 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.)
Filing date
Publication date
Priority claimed from CN201310211409.3A external-priority patent/CN103306094B/zh
Priority claimed from CN201310211192.6A external-priority patent/CN103306105B/zh
Priority claimed from CN201310211884.0A external-priority patent/CN103306095B/zh
Priority claimed from CN201310211885.5A external-priority patent/CN103306106B/zh
Application filed by Wuxi Little Swan Co Ltd filed Critical Wuxi Little Swan Co Ltd
Publication of WO2014190567A1 publication Critical patent/WO2014190567A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/18—Washing liquid 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
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • D06F2105/02—Water supply
    • 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
    • D06F34/18—Condition of the laundry, e.g. nature or weight

Definitions

  • the present invention relates to the field of washing machine technology, and more particularly to a method for determining the load weight of a pulsator washing machine. Background technique
  • the existing method of determining the load weight of a pulsator washing machine employs a method of collecting the back electromotive force of the motor. Input a signal to the washing machine program controller to drive the motor to rotate and stop. After the motor stops, a set of back electromotive force pulses will be generated. By collecting the pulse value generated by the motor back electromotive force of different loads, it is fitted to the scale under the tension of each belt. Heavy curve. The current belt tension is determined by the weighing value of the empty bucket, and the corresponding weighing curve is selected. After the washing program is started, the motor drives the pulsator, and the weight of the load is determined by comparing the weighing value with the curve value.
  • the method is simple and easy to implement, and is applied to a small-capacity pulsator washing machine below 10KG.
  • the pulse data collected under the same load is unstable, the overall data area is narrow, and there is a serious data intersection phenomenon, so that the corresponding weighing curve cannot be obtained. This makes it impossible to accurately determine the load weight of the washing machine. For areas with high energy requirements, the product cannot meet the energy efficiency requirements, and the product competitiveness is weak. Summary of the invention
  • the invention aims at the technical problems that the existing fuzzy weighing method can not obtain the corresponding weighing curve when applied on the washing machine, especially the large-capacity pulsator washing machine, and proposes a new technical solution method; the production is corrected by correcting the friction of the system. And the difference in the weighing curve caused by the inconsistency of some components between the washing machines during use; and the hydration algorithm is added to correct the weighing value, so that the pulsator washing machine can accurately determine the load weight.
  • a method for determining a load weight of a pulsator washing machine includes: A: obtaining the actual weighing curve of a washing machine prototype in the specified model washing machine, and comparing with the standard weighing curve of the specified model washing machine, and completing the friction correction for the specific washing machine prototype; Step 2: According to the friction correction result, The specific washing machine prototype is subjected to fuzzy weighing; Step 3: According to the fuzzy weighing, the load weight of the washing machine is first determined, the inflow water level Di is selected, and then the T minute is washed for T minutes, and after a delay of T1 seconds, the current measurement is performed.
  • the method for determining the load weight of the pulsator washing machine according to the above embodiment of the present invention may further have the following additional technical features:
  • the friction correction is used to correct the inconsistency of the weighing curves between the washing machines.
  • friction correction is achieved by fitting different weighing curves to a uniform curve using a statistical mathematical model.
  • the fuzzy weighing is performed by collecting the number of counter electromotive force pulses. If the load is large, the inertia stopping time is short, and the number of pulses is small; if it is a small load, the inertia stopping time is long, and the number of pulses is small. More, to determine the weight of the load.
  • the final load determination is performed by the hydration algorithm, and the misjudgment condition that the large load is determined to be a small load is corrected.
  • whether or not the water is replenished is determined by comparing the current water level frequency f with the preset water level frequency Fi.
  • 1 is a schematic structural view of a general pulsator washing machine, 1 is a computer version, 2 is a boom, 3 is a motor, 4 is a belt, 5 is a clutch, and 6 is a dewatering bucket;
  • Figure 2 is a flow chart of the fuzzy weighing function
  • Figure 3 is the weighing curve of the load before the system friction correction
  • Figure 4 is the fitted weighing curve after the system friction correction
  • Figure 5 is a circuit schematic diagram of the present invention applying fuzzy control to determine the weight of the laundry
  • Figure 6 is the back electromotive force generated by the rotation of the inertia after the motor stops
  • Figure 7 is a counter electromotive force pulse, which can determine the magnitude of the load by the number of pulses;
  • Figure 8 is a schematic diagram of the load weight discrimination capability;
  • Figure 9 is a flow chart of the hydration correction method. detailed description
  • the structure of the first feature described below "on" the second feature may include embodiments in which the first and second features are formed in direct contact, and may include additional features formed between the first and second features. Embodiment, this The first and second features may not be in direct contact.
  • a method of determining the load weight of a pulsator washing machine includes a friction correction, a weight sensing, a hydration correction module, and the like.
  • the entire process includes friction correction and weight sensing as needed.
  • the entire process includes a weight sensing and hydration correction module.
  • the entire process includes only the hydration correction module.
  • the present invention provides a method for correcting this difference by friction, and the different weighing curves obtained under different test conditions are fitted into a unified curve by using a statistical mathematical model.
  • the friction correction is performed during the production process of the washing machine, so that the weighing curve of the same type of washing machine has consistency. This method can eliminate the influence of external factors and facilitate fuzzy weighing.
  • the motor drives the pulsator to pass tl seconds, stop t2 seconds, reverse t3 seconds, stop t4 seconds (continuous n times), the computer board reads the counter electromotive force pulse within a few seconds of stopping, accumulates the number of counters of n counter electromotive force The weighing value is obtained, and the initial weighing determination is performed by comparing the value with the value of the dehydration curve corrected by the friction.
  • tl, t3 are the time taken for the motor to reach a constant speed
  • t2, t4 are the time required for the motor to completely stop; cumulative n times can read more pulses to reduce the error.
  • the load weight can be basically distinguished. However, in order to avoid misjudgment and determine the large load as a small load, the water supply cannot be washed due to insufficient water supply, and a method of correcting the water is proposed.
  • the load weight is different, and the influence on the water level frequency after washing is also different. Through testing, after the load of different weights is washed for a certain period of time, the maximum change value of the water level frequency is different.
  • the program is started, according to the weight of the load determined for the first time, select the inflow water level Di, then wash the T minutes with Di beat, after the delay of T1 seconds, measure the current water level frequency, and then correct the weighing value according to the water level frequency value, and finally Determine the load weight.
  • FIG. 1 is a view showing a washing machine according to an embodiment, and the load is subjected to 4th gear (0-1.36kg is 1st gear, 1.36kg-4.5kg is 2nd gear, 4.5)
  • the distinction between kg-7.8kg is 3 gears and greater than 7.8kg is 4 gears);
  • this embodiment tests according to the fuzzy weighing function flow chart:
  • the following operations are performed: 1 A method for correcting the difference by using frictional force, first collecting data of different weighing curves obtained under different test conditions of a specified model, and then using the statistical data. The data is normalized to obtain a fitting curve of a standard mathematical model. In the washing machine production process, the curve of any model of this model is compared with the curve of the standard mathematical model to complete the friction correction, so that the weighing curve of the same type of washing machine has consistency. This method can eliminate the influence of external factors and facilitate the fuzzy scale. weight. 2 After the washing program is started, input a signal to the washing machine program controller to drive the motor to turn and stop. After the motor stops, a set of anti-inhibition will occur.
  • the electromotive force pulse the computer board judges the fuzzy weighing by reading the number of pulses; 3
  • the load weight can be basically distinguished, but in order to avoid misjudgment, the large load is determined to be a small load, which may be caused by insufficient water intake. Washing, a method of correcting hydration is proposed.
  • the load weight is different, and the influence on the water level frequency after washing is also different. Through testing, after the load of different weights is washed for a certain period of time, the maximum change value of the water level frequency is different. After the program is started, select the inlet water level according to the load weight determined for the first time.
  • Di then wash in T minutes with Di beat, delay T1 seconds, measure the current water frequency, and then adjust the weighing value according to the water frequency value, and finally determine the load weight.
  • Friction correction Before the friction correction, the load weighing curve is shown in Fig. 3. It can be seen that there is a serious data intersection phenomenon of the pulse data collected under the same load of the same model, and the weighing curve of the measurable load weight cannot be obtained. In the production process, the washing machine is subjected to friction correction, and the statistical model is used to fit it into a weighing curve. As shown in Fig. 4, the fitted weighing curve excludes external factors and the inconsistency of the washing machine system. In the case of the case, it is more convenient to determine the weight of the load;
  • the weight sensing method used in this embodiment is a method for collecting the back electromotive force of the motor.
  • the circuit schematic diagram is shown in FIG. 5, driving the motor for driving the pulsator, so that the motor reaches the maximum rotation rate from the initial stop state.
  • Turning off the motor causes the motor to rotate inertially to generate a back electromotive force (Fig. 6), which is converted into a counter electromotive force pulse by the fuzzy control circuit (Fig. 7), and then the weight of the load is determined by collecting the number of counter electromotive force pulses.
  • Fig. 6 back electromotive force
  • Fig. 7 fuzzy control circuit
  • the weight of the load is determined by collecting the number of counter electromotive force pulses.
  • the present invention innovatively proposes the idea of correcting the weighing curve with friction and correcting the weighing value with the hydration algorithm.
  • a method for judging the load weight of the pulsator washing machine is designed to accurately and easily realize the shortcomings of the fuzzy weighing.
  • the frictional correction method is introduced to eliminate the external factors and the inconsistency of the washing machine system. The effect, and after the friction correction, normalizes the weighing curve to make it consistent, which is more convenient for weight determination.
  • the method of hydration correction is introduced, which makes a second judgment based on the initial judgment. Ensuring that weighing is worthy of accuracy can greatly reduce the serious consequences of inability to clean properly due to inaccurate weighing.
  • the fuzzy weighing method based on the hydration algorithm although the load weight can be accurately determined, the solution is simple and easy to implement, and saves water and electricity, and is more in line with energy efficiency standards.
  • a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with such an instruction execution system, apparatus, or device.
  • a computer readable medium includes the following: Electrical connection (electronic device) with one or more wirings, portable computer disk cartridge (magnetic device), random access memory (RAM), read only memory (ROM), erasable and editable only Read memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method proceeds to obtain the program electronically and then store it in computer memory.
  • portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
  • a suitable instruction execution system For example, if implemented in hardware, as in another embodiment, it can be implemented with any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

La présente invention concerne un procédé de détermination du poids d'une charge d'une machine à laver à pulsateur. Le procédé permet de résoudre le problème d'incohérence des courbes de détermination de poids de machines à laver d'un même modèle au moyen d'une fonction de correction de friction du système. Lorsqu'un programme de lavage est activé, un signal est transmis à un dispositif de commande de programme de machine à laver pour entraîner un moteur en rotation et l'arrêter. Lorsque le moteur est arrêté, un ensemble d'impulsions de force contre-électromotrice est généré et une carte informatique réalise une détermination de poids imprécise par lecture du nombre d'impulsions. Une correction est ensuite réalisée au moyen d'un remplissage d'eau et le poids de la charge est enfin déterminé. La présente invention concerne des machines à laver à pulsateur, et en particulier des machines à laver à pulsateur à grand volume et une fonction de détermination intelligente du poids du linge, et permet d'obtenir une sélection automatique du niveau d'admission d'eau, une performance de lavage améliorée et un programme de lavage optimisé.
PCT/CN2013/077206 2013-05-29 2013-06-13 Procédé de détermination du poids de charge d'une machine à laver à pulsateur Ceased WO2014190567A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN201310211192.6 2013-05-29
CN201310211409.3A CN103306094B (zh) 2013-05-29 2013-05-29 一种判定波轮洗衣机负载重量的方法
CN201310211192.6A CN103306105B (zh) 2013-05-29 2013-05-29 一种判定波轮洗衣机负载重量的方法
CN201310211884.0 2013-05-29
CN201310211885.5 2013-05-29
CN201310211884.0A CN103306095B (zh) 2013-05-29 2013-05-29 一种判定波轮洗衣机负载重量的方法
CN201310211885.5A CN103306106B (zh) 2013-05-29 2013-05-29 一种判定波轮洗衣机负载重量的方法
CN201310211409.3 2013-05-29

Publications (1)

Publication Number Publication Date
WO2014190567A1 true WO2014190567A1 (fr) 2014-12-04

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Application Number Title Priority Date Filing Date
PCT/CN2013/077206 Ceased WO2014190567A1 (fr) 2013-05-29 2013-06-13 Procédé de détermination du poids de charge d'une machine à laver à pulsateur

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WO (1) WO2014190567A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450609A1 (fr) * 2017-08-29 2019-03-06 Samsung Electronics Co., Ltd. Machine à laver et son procédé de commande
CN110344209A (zh) * 2018-04-04 2019-10-18 青岛海尔洗衣机有限公司 一种洗衣机的控制方法及洗衣机
EP3478889B1 (fr) * 2016-06-30 2020-12-30 Midea Group Co., Ltd. Lave-linge avec sélection automatique du type d'opération de rinçage
CN112281405A (zh) * 2019-07-10 2021-01-29 青岛海尔洗衣机有限公司 一种洗衣机控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6029298A (en) * 1998-04-14 2000-02-29 General Electric Company System and method for determining a liquid level setting in a washing machine
CN1367288A (zh) * 2002-02-09 2002-09-04 伍华本 利用重量传感器检测确定洗衣机内布量、水量的方法
CN1795300A (zh) * 2003-03-13 2006-06-28 穆尔蒂布拉斯家电公司 用于检测自动洗衣机中衣物载荷的系统及方法
CN102146629A (zh) * 2010-02-05 2011-08-10 三星电子株式会社 衣物重量感测方法
CN102965882A (zh) * 2011-09-01 2013-03-13 三星电子株式会社 洗衣机及其控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6029298A (en) * 1998-04-14 2000-02-29 General Electric Company System and method for determining a liquid level setting in a washing machine
CN1367288A (zh) * 2002-02-09 2002-09-04 伍华本 利用重量传感器检测确定洗衣机内布量、水量的方法
CN1795300A (zh) * 2003-03-13 2006-06-28 穆尔蒂布拉斯家电公司 用于检测自动洗衣机中衣物载荷的系统及方法
CN102146629A (zh) * 2010-02-05 2011-08-10 三星电子株式会社 衣物重量感测方法
CN102965882A (zh) * 2011-09-01 2013-03-13 三星电子株式会社 洗衣机及其控制方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3478889B1 (fr) * 2016-06-30 2020-12-30 Midea Group Co., Ltd. Lave-linge avec sélection automatique du type d'opération de rinçage
EP3450609A1 (fr) * 2017-08-29 2019-03-06 Samsung Electronics Co., Ltd. Machine à laver et son procédé de commande
US10934655B2 (en) 2017-08-29 2021-03-02 Samsung Electronics Co., Ltd. Washing machine and control method thereof
CN110344209A (zh) * 2018-04-04 2019-10-18 青岛海尔洗衣机有限公司 一种洗衣机的控制方法及洗衣机
CN110344209B (zh) * 2018-04-04 2024-01-02 佛山市顺德海尔电器有限公司 一种洗衣机的控制方法及洗衣机
CN112281405A (zh) * 2019-07-10 2021-01-29 青岛海尔洗衣机有限公司 一种洗衣机控制方法
CN112281405B (zh) * 2019-07-10 2024-05-24 青岛海尔洗衣机有限公司 一种洗衣机控制方法

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