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US20100293722A1 - Method for the operating control of a clothes washing machine and clothes washing machine - Google Patents

Method for the operating control of a clothes washing machine and clothes washing machine Download PDF

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Publication number
US20100293722A1
US20100293722A1 US12/665,437 US66543708A US2010293722A1 US 20100293722 A1 US20100293722 A1 US 20100293722A1 US 66543708 A US66543708 A US 66543708A US 2010293722 A1 US2010293722 A1 US 2010293722A1
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US
United States
Prior art keywords
load
microprocessor
basket
clothes
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.)
Abandoned
Application number
US12/665,437
Other languages
English (en)
Inventor
Erico de Oliveira Munhoz
Adelcio Braz
Antonio de Oliveira
Rodrigo Franca Alves
Wladimir Alex Magal
Carlos Eduardo Buratto de Toledo
Douglas Alex Resende Pereira
Jorge Oyama
Marcelo Campos Silva
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.)
Whirlpool SA
Original Assignee
Whirlpool SA
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 Whirlpool SA filed Critical Whirlpool SA
Assigned to WHIRLPOOL S.A. reassignment WHIRLPOOL S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SILVA, MARCELO CAMPOS, BRAZ, ADELCIO, BURATTO DE TOLEDO, CARLOS EDUARDO, DE OLIVEIRA MUNHOZ, ERICO, DE OLIVEIRA, ANTONIO, MAGALHAES BARCHA, WLADIMIR ALEX, OYAMA, JORGE, RESENDE PEREIRA, DOUGLAS ALEX, ALVES MARQUES, RODRIGO FRANCA
Publication of US20100293722A1 publication Critical patent/US20100293722A1/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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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
    • 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
    • D06F2105/60—Audible signals
    • 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
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices

Definitions

  • This invention consists of a method for the operating control of a clothes washing machine, having determined the weight of the load fed into the above-mentioned machine. More specifically, this invention addresses a method for the operating control of such machines and that it encompasses the determination of the weight of the load of clothes and that of a corresponding load of water in a clothes washing machine of the top-loading type, in which a containment drum with a rotating basket inside it, is suspended in a casing of the machine by suspension rods.
  • the invention also refers to a top-loading clothes washing machine with automatic operation, fitted with devices that can determine the weight of the load of clothes and thus the amount of water to be let in for the washing operation, in addition to, controlling the other operating functions of the machine.
  • One of the questions that must be resolved in the operation of a clothes washing machine is that of determining the weight of the load of clothes put into the basket, in order to determine the load or the amount of water to be fed into the containment drum suspended inside the casing.
  • Information on the weight of the load of clothes may be sent to a control device, such as a microprocessor in the actual washing machine, programmed to operate it and performing several functions.
  • the control of various operating functions of the clothes washing machine allows it to operate, with no need for any intervention by the user, in the manner most appropriate to each amount of clothes put into the basket, saving water and electricity, reducing the time needed for washing and spin-drying each load of clothes while also permitting a reduction in the vibrations, particularly while the basket is spinning during the spin-drying phase.
  • the strain gage is a well-known resistance-measuring device whose resistance values vary, depending on the strains to which it is subjected.
  • the information on weight acquired by the many load cells is converted into an analog or digital electrical signal that is processed by an electronic module, such as a microprocessor.
  • the a load sensing device such as strain gage, on each suspension rod allows the weight of the load of clothes put into the basket to be obtained with the machine non-operative, regardless of the distribution of the load of clothes, meaning the level of imbalance of the basket and the load of clothes together.
  • An alternative structure with lower costs uses a load sensing device that may consist, for example, of a single strain gage affixed to a calibrated metal body that is assembled on of the suspension rods, being subject to the loads applied thereto.
  • This array does not result in a high-precision transducer, being able to detect the weight of the load with a resolution (number of increments) that is sufficient for use in only some applications.
  • an objective of this invention is to provide a method for the operating control of such machines, encompassing the automatic determination of the weight of the load of clothes put into the basket of a clothes washing machine of the top-loading type, that can be implemented at a relatively low cost, using only one load sensing device mounted on the suspension rods of a containment drum of the machine and providing accurate and reliable results, regardless of the level of imbalance that the load of clothes produces in the rotating basket, when spinning round inside the containment drum.
  • An additional objective of this invention is to provide a method, as mentioned above, that also allows the definition, as a function of determining the weight of the load of clothes put into the machine, the amount of water to be fed into the containment drum and also the amount of water removed during the spin-drying phase, thus resulting in a washing operation that consumes less time, electricity and water.
  • Another objective of the invention is to provide a clothes washing machine of the type presented above that operates automatically, determining and controlling the amount of water fed into the containment drum, for its operation and washing functions, performing and controlling several other functions of the machine.
  • the method addressed by this invention is applied to a clothes washing machine of the top-loading type and that encompasses: a casing; a containment drum suspended inside the casing and sized to receive and contain the load of water—several suspension rods connected underneath to the containment drum and on top to the casing; a basket, assembled inside the containment drum that is spun around its vertical geometric axis by a motor unit carried by the containment drum, during a spin-drying phase of the machine, and sized to hold the load of clothes to be washed; and a microprocessor that activates various operating functions of the machine.
  • the method in question encompasses the stages of: placing the load of clothes inside the basket of the machine; switching on the motor unit in order to switch the basket into a weighing rotation that is pre-determined by the microprocessor; through a load sensing device mounted on the suspension rods, producing signals representing the maximum and minimum loads to which the above-mentioned suspension rod is subject during each spin, charging the load sensing device in the above-mentioned weighing rotation of the basket already containing the load of clothes:
  • the invention also encompasses a closed washing machine as defined above, with one of its suspension rods fitted with a load sensing device that is operationally connected to the microprocessor in order to supply it with signals representing the maximum and minimum loads applied to the above-mentioned suspension rod while the basket is turning in a weighing rotation and already containing the load of clothes to be washed, with this microprocessor being designed to process these signals as a function of the definition of the average load applied to such suspension rod that sets the load sensing device and the number of suspension rods, and determine the corresponding weight of the load of water fed into the containment drum.
  • FIG. 1 is a front-view diagram of a typical clothes washing machine of the top-loading type
  • FIG. 2 is a view of the plan of a load sensing device linking two portions of a suspension rod to the drum and defining a calibrated body to which a strain gage is affixed;
  • FIG. 3 is a cross-section of the load sensing device, with this cross section following the line A-A shown in FIG. 2 ;
  • FIG. 4 is a graph presenting the maximum and minimum load values applied to the suspension rod which charges the load sensing device on each complete spin of the basket when in a weighing rotation containing an unbalanced load of clothes;
  • FIG. 5 presents a graph illustrating presenting a decreasing curve in the variation exemplifying the weight of the total load (clothes and water) during the spin-drying phase performed by the washing machine.
  • FIG. 1 shows the conventional clothes washing machine 10 of the top-loading type, fitted with a casing 12 , normally metal.
  • the casing 12 has a supporting foot 14 on each on each of its corners to support it on the ground.
  • the machine 10 includes a control panel 20 , generally assembled on the casing 12 and fitted with different switches, not described here as they do not constitute part of this invention, through which the user may select the various functions of the machine.
  • the machine in question encompasses also encompasses microprocessor 30 , generally fitted inside the control panel 20 , that is schematically illustrated in FIG. 1 , with the above-mentioned microprocessor 30 built in a manner that allows it to be programmed properly in order to control the operation of the various components and the respective functions of the machine, as well be described in the course of this Report.
  • a containment drum 40 is suspended inside the casing 12 , sized to receive and hold the load of water to be fed into the machine during a washing operation.
  • a basket 50 is assembled, generally but not necessarily perforated, that may be rotated by a motor unit 60 around its vertical geometric axis, during a spin-drying phase of the machine 10 and that is also sized to hold the load of clothes to be washed by the machine 10 .
  • the containment drum 40 is suspended inside the casing 12 by several suspension rods 70 , which are connected underneath to the containment drum 40 and above to the casing 12 , as schematically illustrated in FIG. 1 , and as is well-known in the technique.
  • suspension rods 70 are provided, equally spaced among themselves at around 90° around the containment drum 40 , in the gap between it and the casing 12 .
  • the motor unit 60 is generally assembled on the containment drum 40 , consisting of a motor 61 and a switching mechanism 62 , of adequate construction, generally of the belt and pulley type, operationally connected to the basket 50 in order to rotate it during the various operating phases of the machine 10 .
  • one of the above-mentioned suspension rods 70 carries a load sensing device 80 operationally connected to the microprocessor in order to send signals to the latter representing the maximum and minimum loads applied to such suspension rod 70 , with the basket 50 being stationary or turning in a weighing rotation, generally below the spin-drying rotation of the basket and already containing the load of clothes to be washed.
  • the microprocessor is designed and built to process these signals received from the load sensing device 80 on each complete spin of the basket 50 , as a function of the definition of the average load applied to the above-mentioned suspension rod 70 and the number of rods 71 , thus determining a corresponding weight for the load of water fed into the containment drum 40 .
  • the machine 10 also encompasses a water feed pipe 15 , generally connected to the pressurized water network and fitted with a control valve 16 , of the remote switching type, generally an electric valve operationally connected to the microprocessor whereby its activation is controlled by the above-mentioned microprocessor 30 .
  • a control valve 16 of the remote switching type, generally an electric valve operationally connected to the microprocessor whereby its activation is controlled by the above-mentioned microprocessor 30 .
  • the load sensing device 80 is assembled on only one of the suspension rods 70 and consists of a calibrated body 81 , constructed from any appropriate material, such as steel, for example, and that may take the shape of a connector ring 82 that includes grommets 82 a , 82 b , facing and at the ends, with one above and the other below.
  • the above-mentioned suspension rod 70 is divided at an intermediate point along its length, into two portions of rod 71 , 72 , whose adjacent tips are each hooked in a respective grommet 82 a , 82 b of the connector ring 82 of the calibrated body 81 .
  • the load sensing device 80 also encompasses a strain gage 83 mounted on the calibrated body 81 , in order to sense the distortions thereof, when the loads are applied to the respective suspension rod 70 , meaning the strains imposed thereon by the weight of the containment drum 40 , of the basket 50 , of the load of clothes already placed in the basket 50 , the load of water fed into the containment drum 40 and also the strains resulting from the spinning movement of the basket 50 , already containing the load of clothes, in a weighing rotation controlled by the microprocessor 30 , as described in greater detail below.
  • a strain gage 83 mounted on the calibrated body 81 , in order to sense the distortions thereof, when the loads are applied to the respective suspension rod 70 , meaning the strains imposed thereon by the weight of the containment drum 40 , of the basket 50 , of the load of clothes already placed in the basket 50 , the load of water fed into the containment drum 40 and also the strains resulting from the spinning movement of the basket 50 , already
  • the strain gage 83 may be defined as a strain gage to be affixed to the calibrated body 81 , for example, on one of the inner edges of the connector ring 82 , also being fitted with a pair of outlet wires 83 a .
  • This must be defined by any sensor that can detect the level of strain to which the calibrated body 81 is subject when applying the method in question.
  • construction may be conventional, with resistance that varies according to the stressed applied to the connector ring 82 , being measured and processed by the microprocessor 30 .
  • the electronic circuit connecting the load sensing device 80 to the microprocessor may be handled in different ways, with one of them described here in the Application for Brazilian Patent PI 0602958-2 submitted by this same applicant, and that must be included here by reference.
  • the load sensor 80 can detect the values of the maximum and minimum loads applied to the suspension rod 70 that carries the above-mentioned load sensor device 80 , with such signals representing the maximum and minimum loads being sent to the microprocessor that processes these signals for a certain pre-set length of time or a certain number of complete spins of the basket 50 , in order to define the average load applied to the above-mentioned suspension rod 70 and detected by the load sensor device 80 , taking this average load value as being the load applied to each of the other suspension rods 70 .
  • the microprocessor 30 determines the weight of the load of clothes placed in the basket 50 . Having determined the weight of the load of clothes placed in the basket 50 , the microprocessor determines through adequate algorithms, the weight of the load of water to be pumped into the containment drum 40 , in order to perform an adequate washing operation with the load of clothes placed by the user inside the machine. This solution allows the water fed into the machine to be measured in an accurate and automatic manner, for each load of clothes placed in the perforated basket 50 , saving water and electricity.
  • Another operating characteristic of the solution proposed herein consists of the manner in which the inflow of the load of water may be controlled into the containment drum 40 , in an adequate manner.
  • the solution in question allows the elements presented above to be used in order to not only control the inflow of flow into the machine, but also to ascertain whether this inflow is taking place correctly and, if not, issue an instruction command for the microprocessor 30 , to interrupt the washing operation, or to produce a visual or sound alarm, or both, in order to alert the user to the occurrence of some problem related to the inflow of water, such as fault in the water inflow control valve, for example, blocked piping, inflow tap improperly closed or any other problem that affects the expected inflow of the load of water into the containment drum 40 .
  • the rotation of the basket 50 is interrupted, being immobilized through an instruction sent by the microprocessor 30 , when then sends an instruction to automatically switching the control valve into an open position, releasing the inflow of water into the containment drum.
  • the increase in the weight or the load detected by the load sensing device 80 fitted to the suspension rods 70 corresponds to one quarter of the load of water effectively pumped in, allowing the microprocessor to detect this through the signals received from the load sensing device 80 , processing the rising variation in the load until the processed value reach that representing the load of water fed into the containment drum 40 .
  • the microprocessor will send an operating command, interrupting the automatic operation of the machine and/or emitting visual and/or sound alarm signals alerting the user.
  • control valve 16 for starting and ending the inflow of the load of water into the containment drum 40 may be performed with the basket still in the weighing rotation, although this variant of the method in question results in electricity consumption corresponding to that required to maintain the spin of the basket 50 in the weighing rotation, while the water is flowing into the machine.
  • the basket 50 continues to turn in the weighing rotation after opening the control valve 16 , whereby the load sensing device 80 continues to send signals to the microprocessor 30 , representing the maximum and minimum loads applied to the respective support rod 70 on each complete spin of the basket 30 , allowing the microprocessor detect and process the increasing variation in the range of the above-mentioned maximum and minimum loads, concluding on the variation in the above-mentioned range, until the maximum and minimum load values are reached representing the total load of water to be allowed into the containment drum 40 .
  • the microprocessor will send an operating command instruction in order to halt the machine and/or allow alarm signals to alert the user.
  • the graph presented in FIG. 4 illustrates the maximum and minimum values of the loads applied to the suspension rod 70 that sets the load sensing device 80 , with the range of variation in the load on each rotation of the basket 50 , already containing the load of clothes with a certain imbalance, is illustrated here merely as an example, as the range of loads applied to the above-mentioned suspension rod 70 will evidently depend on the level of imbalance of the load of clothes placed in the basket 50 , necessarily noting that the weighing rotation applied to the basket 50 is pre-determined by the design of the machine.
  • the solution proposed herein also allows control of the time and speed of the rotation of the basket 50 during the spin-drying phase of the load of clothes already washed, from which the water used during the earlier phases must be expelled with the desired intensity.
  • the spin drying time is calculated as a value that is generally fixed and sufficient to produce an adequate extraction of water from the load of clothes, considering the load of clothes to be equal or close to the maximum value permitted by the design of the machine 10 .
  • the microprocessor 30 can accompany the decreasing variation in the average load applied to suspension rod 70 that sets the load sensing device 80 , on each rotation of the basket 50 , during the spin-drying phase of the load of clothes that has already been washed.
  • the microprocessor instructs the motor unit 60 to switch off in order to complete the spin-drying phase and the rotation of the basket, interrupting electricity consumption and avoiding unnecessary crumpling of the clothes, having extracted from the load of clothes almost all possible water, considering the spin speed-drying assigned to the basket 50 by the rated design.
  • the microprocessor 30 monitors the decreasing variation in the maximum and minimum loads applied to the above-mentioned suspension rod 70 that sets the load sensing device 80 , detecting the initial spin-drying phases, conventionally applied, in order to allow some settling of the clothes in the basket and also during the subsequent high, medium and low water extraction phases, illustrative in the curve of the above-mentioned graph.
  • the invention also allows a stage to be included that checks the decreasing variation in the average load applied to the suspension rod 70 through the microprocessor 30 , that sets the load sensing device 80 on each rotation of the basket 50 , during the spin-drying phase of the load of clothes that has already been washed and sends an operating command instruction, should the weight of the load of water drop or should the variation fall below a preset value per time unit.
  • the above-mentioned operating command instruction may be designed to perform one or both of the functions defined by the interruption of the washing operation or by setting off a sound alarm alerting the user.
  • the invention also makes provision for the possibility of adjusting the rotation speed of the basket 50 during the above-mentioned spin-drying phase, through an instruction sent by the microprocessor 30 to the motor unit 60 , in order to keep the maximum load detected by the sensing device 80 on each rotation of the basket 50 below the pre-set ceiling value, below the preset ceiling value, thus protecting the structure of the machine against excessive vibration that occurs when the spin-drying phase takes place with severe imbalance.
  • the microprocessor 30 may adjust the rotating speed of the basket during the spin-drying phase, through processing the maximum and minimum load signals received from the load sensing device 80 , keep it at least a slower rotation level as selected by the user, in order to leave the load of clothes less crumpled, so that they may be ironed more easily.
  • the user may adjust the rotating speed of the basket 50 during the spin-drying phase, in order to endow the load of clothes being spin-dried with a desired level of compacting or crumpling.
  • the microprocessor may be programmed to process the load range signals detected by the load sensing device 80 and instruct the motor unit 60 to switch off for sufficiently brief periods of time and in an appropriate sequence as required to keep the basket 50 rotating at speeds that do not result in a maximum load higher than the pre-set ceiling value as mentioned above, or that allow the release of the load of clothes already washed and that may be ironed more easily.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
US12/665,437 2007-06-18 2008-06-18 Method for the operating control of a clothes washing machine and clothes washing machine Abandoned US20100293722A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BRPI07019629 2007-06-18
BRPI0701962-9A BRPI0701962A2 (pt) 2007-06-18 2007-06-18 mÉtodo para controle operacional de uma mÁquina lavadora de roupas e mÁquina lavadora de roupas
PCT/BR2008/000172 WO2008154715A2 (en) 2007-06-18 2008-06-18 Method for the operating control of a clothe washing machine and clothes washing machine

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Publication Number Publication Date
US20100293722A1 true US20100293722A1 (en) 2010-11-25

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US12/665,437 Abandoned US20100293722A1 (en) 2007-06-18 2008-06-18 Method for the operating control of a clothes washing machine and clothes washing machine

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US (1) US20100293722A1 (es)
AR (1) AR067034A1 (es)
BR (1) BRPI0701962A2 (es)
CL (1) CL2008001790A1 (es)
PE (1) PE20090471A1 (es)
UY (1) UY31156A1 (es)
WO (1) WO2008154715A2 (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10266982B2 (en) * 2016-09-22 2019-04-23 Midea Group Co., Ltd. Laundry washing machine with dynamic damping force optimization
WO2020112501A1 (en) * 2018-11-30 2020-06-04 Yan Ivan Washing machine mold growth prevention
EP3808886A1 (en) * 2019-10-15 2021-04-21 LG Electronics Inc. Method for controlling washing machine
US20240344258A1 (en) * 2021-12-28 2024-10-17 Samsung Electronics Co., Ltd. Method for controlling water supply path in washing machine, and washing machine configured to implement same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111764140B (zh) * 2020-06-11 2022-08-26 无锡小天鹅电器有限公司 一种控制方法、装置、衣物处理设备及晾衣机

Citations (1)

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Publication number Priority date Publication date Assignee Title
US6065170A (en) * 1998-07-16 2000-05-23 Samsung Electronics Co., Ltd. Washing machine having a hybrid sensor and a control method thereof

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Publication number Priority date Publication date Assignee Title
US6460381B1 (en) * 1999-03-29 2002-10-08 Sanyo Electric Co., Ltd. Washing machine or an apparatus having a rotatable container
DE102005042381A1 (de) * 2005-09-06 2007-03-08 Herbert Kannegiesser Gmbh Verfahren und Vorrichtung zum Waschen und/oder Schleudern von Wäsche

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6065170A (en) * 1998-07-16 2000-05-23 Samsung Electronics Co., Ltd. Washing machine having a hybrid sensor and a control method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10266982B2 (en) * 2016-09-22 2019-04-23 Midea Group Co., Ltd. Laundry washing machine with dynamic damping force optimization
US10697108B2 (en) 2016-09-22 2020-06-30 Midea Group Co., Ltd. Laundry washing machine with dynamic damping force optimization
WO2020112501A1 (en) * 2018-11-30 2020-06-04 Yan Ivan Washing machine mold growth prevention
EP3808886A1 (en) * 2019-10-15 2021-04-21 LG Electronics Inc. Method for controlling washing machine
US20240344258A1 (en) * 2021-12-28 2024-10-17 Samsung Electronics Co., Ltd. Method for controlling water supply path in washing machine, and washing machine configured to implement same

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WO2008154715A3 (en) 2010-02-04
PE20090471A1 (es) 2009-05-24
WO2008154715A2 (en) 2008-12-24
UY31156A1 (es) 2009-01-30
AR067034A1 (es) 2009-09-30
CL2008001790A1 (es) 2009-07-10
BRPI0701962A2 (pt) 2009-02-10
WO2008154715A8 (en) 2009-03-19

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