KR20210131672A - Washing machine and control method for washing machine - Google Patents

Abstract

The present invention relates to a washing machine and a control method of the washing machine. The control method of the washing machine according to an embodiment of the present invention comprises the following steps of: detecting an amount of the weight of laundry and a cloth in a drum, and dispersing the laundry in the drum at a rotation speed corresponding to the detected weight of laundry and cloth; and comprising a plurality of rotation steps in which the drum rotates, and dehydrating the laundry according to an eccentricity of the drum measured in each of the plurality of rotation steps. The step of dehydrating the laundry includes the following steps of: dehydrating the laundry by acceleratingly rotating the drum when the eccentricity is equal to or less than a reference eccentricity; and stopping rotation of the drum when the eccentricity exceeds the reference eccentricity. An objective of the present invention is to provide a method of performing cloth dispersion according to the cloth in a dehydration cycle of the washing machine.

Description

A washing machine and a control method of a washing machine

The embodiment relates to a washing machine and a control method of the washing machine, and more particularly, to a washing machine and a control method of the washing machine for performing a spin-drying cycle by evenly distributing laundry in a drum according to a laundry amount and cloth quality.

Generally. A washing machine is a device that cleans clothes, bedding, etc. (hereinafter referred to as 'laundry') through processes such as washing, rinsing, dehydration, and drying to remove contamination from clothes, bedding, etc. (hereinafter referred to as 'laundry') using water, detergent and mechanical action.

The drum washing machine is equipped with a cabinet forming an exterior and a tub for accommodating wash water inside the cabinet. A drum in which laundry is accommodated is disposed inside the tub. A motor for rotating the drum is mounted on the rear side of the tub. A drive shaft connected to the rear side of the drum through the tub is installed in the motor. A lifter is installed inside the drum to pick up laundry when the drum rotates.

In general, the drum washing method is a method in which detergent, washing water, and laundry are put into the drum, and the washing is performed using the frictional force between the rotating drum and the laundry by receiving the driving force of the motor. It does not dry out, and it can produce a washing effect by tapping and rubbing.

In a general drum washing machine, after putting laundry in the drum, setting a desired washing mode and driving the washing machine, water is supplied to the drum and washing is performed while the drum rotates. After that, when the water used for washing is discharged to the outside, a rinsing process is performed, followed by a dehydration process of dehydrating the laundry adhering to the inner wall of the drum by centrifugal force by rotating the motor at high speed.

In the spin-drying stroke, weight detection is performed to match the conditions suitable for the drive system in preparation for unbalance. Next, a cloth dispersion process of accelerating the drum with a constant acceleration slope is performed in order to evenly distribute the laundry inside the drum.

Conventionally, the drum is accelerated according to the sensed amount of fabric regardless of the fabric to disperse the fabric in the drum washing machine, and then a dehydration process is performed. At this time, if the amount of cloth and cloth inside the drum washing machine cannot be accurately detected, the cloth dispersing function is remarkably deteriorated. That is, there was a problem in that the function of the dehydration cycle was deteriorated because the laundry was not dispersed in the drum of the drum washing machine.

The embodiment is intended to solve the above-described problems, and the washing machine and the control method of the washing machine according to the embodiment are to provide a method of dispersing fabric according to the cloth in the dehydration cycle of the washing machine.

In addition, the washing machine and the control method of the washing machine according to the embodiment are intended to provide a method of dispersing clothes according to the amount of laundry in the dehydration cycle of the washing machine.

In addition, the washing machine and the control method of the washing machine according to the embodiment are intended to provide a method of dispersing clothes according to the amount of clothes and the fabrics in the dehydration cycle of the washing machine.

In addition, the washing machine and the control method of the washing machine according to the embodiment are to provide a cloth distribution table in the spin-drying cycle of the washing machine.

In addition, the washing machine and the control method of the washing machine according to the embodiment are intended to provide a method of dispersing clothes according to the amount of laundry using a cloth distribution table.

In addition, the washing machine and the control method of the washing machine according to the embodiment are to provide a method of dispersing the fabric according to the fabric using the fabric dispersion table.

In addition, the washing machine and the control method of the washing machine according to the embodiment are intended to provide a method of performing a spin-drying cycle according to the amount and fabric quality using a cloth distribution table.

The technical problems to be achieved by the embodiment are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art from the description of the embodiment.

According to an embodiment, the current sensing unit detects a current applied to a motor connected to the drum when the drum rotates.

In addition, the current sensing unit according to the embodiment transmits a signal for the sensed current to the control unit.

In addition, the laundry amount sensing unit according to the embodiment senses the amount of laundry put into the drum.

In addition, the laundry amount detecting unit according to the embodiment senses the amount of laundry in the drum by processing the sensed current values up to the time it takes for the drum to reach a predetermined rotation speed.

In addition, the laundry amount sensing unit according to the embodiment transmits a signal for the detected laundry weight to the control unit.

In addition, the cloth detecting unit according to the embodiment senses the cloth put into the drum.

In addition, the washing machine and the washing machine control method according to the embodiment process the current values (signals for the amount of laundry) sensed by the current sensing unit until the drum reaches a predetermined rotational speed to detect the cloth in the drum. .

In addition, the control unit according to the embodiment may determine to which category the laundry amount included in the drum belongs to pre-classified categories by using the data signal received from the laundry weight detection unit.

Also, the control unit according to the embodiment may determine which of the pre-classified categories the cloth included in the drum belongs to by using the data signal received from the cloth detecting unit.

In addition, the control unit according to the embodiment may receive a signal for the laundry amount and cloth quality determined based on machine learning by the laundry weight detection unit and the cloth quality detection unit to determine the laundry weight and cloth quality inside the drum. Also, the controller may control the driving unit by using the determined laundry amount and cloth quality.

In addition, the eccentricity detection unit according to the embodiment may detect the eccentricity based on the amount of change in the rotational speed of the driving unit that varies according to the distribution state of the laundry in the drum.

A method for controlling a washing machine according to an embodiment includes the steps of detecting a laundry amount and cloth in a drum, dispersing laundry in the drum at a rotation speed corresponding to the sensed laundry amount and cloth, and a plurality of rotating steps in which the drum rotates and dehydrating the laundry according to the eccentricity of the drum measured in each of the plurality of rotating steps, wherein the dehydrating the laundry includes, when the eccentricity is less than or equal to the reference eccentricity, accelerated rotation of the drum to spin the laundry; and stopping rotation of the drum when the eccentricity exceeds the reference eccentricity.

In addition, the rotational speed according to the embodiment includes a first constant velocity and a first acceleration, and the step of dispersing laundry includes rotating the drum acceleratedly according to the sensed laundry amount and the first acceleration corresponding to the cloth, and and dispersing the laundry by rotating the drum at the first constant speed when the rotational speed reaches the first constant speed, and the step of dehydrating the laundry includes the drum whose rotation is stopped when the eccentricity exceeds the reference eccentricity and measuring the eccentricity of the drum by accelerating the rotation according to the first acceleration, and the slope of the first acceleration and the first constant velocity change according to the sensed amount of cloth and cloth.

In addition, the plurality of rotating steps according to the embodiment includes a first rotating stage, a second rotating stage, and a third rotating stage, and the step of dehydrating the laundry includes rotating the drum at a constant speed at a second constant speed in the first rotating stage. Detecting an eccentricity by rotating, if the detected eccentricity is less than or equal to the reference eccentricity, rotating the drum accelerated according to the first acceleration to perform a second rotational step, and when the detected eccentricity exceeds the reference eccentricity, rotation of the drum stopping the operation, wherein the second constant velocity is faster than the first constant velocity, a second rotation step is performed after the first rotation step, and a third rotation step is performed after the second rotation step.

In addition, the step of dehydrating laundry according to the embodiment includes, in the second rotating step, rotating the drum at a third constant speed to detect an eccentricity amount, and when the sensed eccentricity amount is less than or equal to the reference eccentricity amount, the drum is rotated according to the first acceleration performing a third rotation step through accelerated rotation; and stopping rotation of the drum when the sensed eccentricity exceeds a reference eccentricity amount, wherein the third constant velocity is faster than the second constant velocity.

In addition, the laundry amount according to the embodiment includes the first reference amount, the second reference amount, and the third reference amount, the cloth corresponds to any one of the first state, the second state, and the third state, and the step of dispersing the laundry comprises distributing laundry by accelerating rotation with a first acceleration corresponding to the sensed laundry amount and cloth when the sensed laundry amount is equal to or less than the first reference amount and the detected cloth is in the first state, and the second reference amount is the second reference amount greater than the first reference amount, the third reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry having the same fabric, the second state is a combination of laundry having the same fabric and different fabrics, and the third A state is a combination of several laundry from which cloth differs.

In addition, the laundry amount according to the embodiment includes the first reference amount, the second reference amount, and the third reference amount, the cloth corresponds to any one of the first state, the second state, and the third state, and the step of dispersing the laundry and dispersing laundry by accelerating rotation with a first acceleration corresponding to the sensed laundry amount and cloth when the sensed laundry amount is greater than the first reference amount and less than or equal to the second reference amount and the detected cloth is in the first state; , the second reference amount is greater than the first reference amount, the third reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry having the same cloth, and the second condition is the laundry with the same cloth and laundry with different cloths. is a combination of , and the third state is a combination of a plurality of laundry having different fabrics.

In addition, the laundry amount according to the embodiment includes the first reference amount, the second reference amount, and the third reference amount, the cloth corresponds to any one of the first state, the second state, and the third state, and the step of dispersing the laundry and dispersing laundry by accelerating rotation with a first acceleration corresponding to the sensed laundry amount and cloth when the laundry amount is greater than the first reference amount and less than or equal to the second reference amount and the cloth is in the second state, and the second reference amount is greater than the first reference amount, the third reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry with the same cloth, and the second condition is a combination of laundry with the same cloth and laundry with different cloths, A 3rd state is a combination of several laundry from which cloth differs.

The laundry amount according to the embodiment includes the first reference amount, the second reference amount, and the third reference amount, the cloth corresponds to any one of the first state, the second state, and the third state, and the step of dispersing the laundry includes: and dispersing laundry by accelerating rotation with a first acceleration corresponding to the sensed laundry amount and cloth when the amount of laundry is greater than the first reference amount and less than or equal to the second reference amount and the cloth is in the third state, wherein the second reference amount is the second reference amount greater than the first reference amount, the third reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry having the same fabric, the second state is a combination of laundry having the same fabric and different fabrics, and the third A state is a combination of several laundry from which cloth differs.

In addition, the laundry amount according to the embodiment includes the first reference amount, the second reference amount, and the third reference amount, the cloth corresponds to any one of the first state, the second state, and the third state, and the step of dispersing the laundry includes: , when the laundry amount is the third reference amount, accelerated rotation with a first acceleration corresponding to the sensed laundry weight and cloth quality to disperse the laundry, wherein the second reference amount is greater than the first reference amount, and the third reference amount is the second reference amount larger, the first state is a combination of a plurality of laundry having the same cloth, the second state is a combination of laundry having the same cloth and different cloths, and the third state is a combination of a plurality of laundry having different cloths. .

In addition, according to the embodiment, the laundry amount includes a first reference amount, a second reference amount, and a third reference amount, the cloth corresponds to any one of the first state, the second state, and the third state, and dispersing laundry comprises distributing laundry by accelerating rotation with a first acceleration corresponding to the sensed laundry amount and cloth when the amount of laundry exceeds the third reference amount and the cloth is in the first state, wherein the second reference amount is the first reference amount greater than, the third reference amount is greater than the second reference amount, the first condition is a combination of a plurality of laundry having the same cloth, the second condition is a combination of laundry having the same cloth and laundry having different cloths, and the third condition is , a combination of a plurality of laundry with different fabrics.

In addition, in the washing machine according to the embodiment, a laundry amount sensing unit detecting the amount of laundry in the drum, a cloth detecting unit detecting the cloth in the drum, and dispersing laundry in the drum at a rotation speed corresponding to the detected amount and cloth, and accelerating the rotation of the drum a driving unit for dehydrating the laundry, and a control unit for controlling the spin-drying process according to the amount of eccentricity of the drum measured while the drum is acceleratingly rotating, and the control unit, when the eccentricity is less than the reference eccentricity, accelerates rotation of the drum to spin the laundry, , When the eccentricity exceeds the reference eccentricity, the rotation of the drum is stopped.

In addition, the rotational speed according to the embodiment includes a first constant velocity and a first acceleration, and the control unit accelerates the rotation of the drum according to the first acceleration corresponding to the sensed laundry amount and cloth, and the rotational speed of the drum is set to the first When the constant speed is reached, the drum is rotated at the first constant speed to control to distribute the laundry. When the eccentricity exceeds the reference eccentricity, the drum whose rotation has been stopped is accelerated according to the first acceleration to measure the eccentricity of the drum and the slope of the first acceleration and the first uniform velocity change according to the sensed laundry amount and cloth quality.

In addition, the dehydration process according to the embodiment includes a plurality of rotation processes, the plurality of rotation processes include a first rotation process, a second rotation process, and a third rotation process, and the eccentricity sensing unit, in the first rotation process, , the drum is rotated at a constant speed at a second constant speed to detect the amount of eccentricity, and when the sensed amount of eccentricity is less than or equal to the reference amount of eccentricity, the control unit accelerates rotation of the drum according to the first acceleration to perform a second rotation process, and the amount of eccentricity is the standard If the eccentricity is exceeded, control to stop the rotation of the drum, the second constant velocity is faster than the first constant velocity, the second rotation process is performed after the first rotation process, and the third rotation process is performed after the second rotation process This is done.

In addition, the eccentricity sensing unit according to the embodiment senses the eccentricity by rotating the drum at a constant third constant speed in the second rotation process, and the control unit, when the sensed eccentricity is less than or equal to the reference eccentricity, accelerates rotation of the drum according to the first acceleration to control to perform a third rotation process, and when the eccentricity exceeds the reference eccentricity, control to stop the rotation of the drum, and the third constant velocity is faster than the second constant velocity.

In addition, the laundry amount according to the embodiment includes a first reference amount, a second reference amount, and a third reference amount, the cloth content corresponds to any one of the first state, the second state, and the third state, and the control unit, When the amount is less than or equal to the first reference amount and the sensed cloth is in the first state, the laundry is controlled to distribute the laundry by accelerating rotation with a first acceleration corresponding to the detected amount and cloth, and the second reference amount is greater than the first reference amount, and the second reference amount is greater than the first reference amount, 3 The reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry having the same cloth, the second condition is a combination of laundry having the same cloth and laundry having different cloths, and the third condition is that the cloth is different. It is a combination of a plurality of laundry.

In addition, the laundry amount according to the embodiment includes a first reference amount, a second reference amount, and a third reference amount, the cloth content corresponds to any one of the first state, the second state, and the third state, and the detected laundry amount is the first When the reference amount is greater than the reference amount and less than the second reference amount and the sensed cloth is in the first state, the control unit controls to distribute the laundry by accelerating rotation with a first acceleration corresponding to the sensed cloth amount and cloth, and the second reference amount is the first greater than the reference amount, the third reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry having the same cloth, the second condition is a combination of laundry having the same cloth and laundry having different cloths, the third condition is is a combination of a plurality of laundry with different fabrics.

In addition, the laundry amount according to the embodiment includes a first reference amount, a second reference amount, and a third reference amount, the cloth quality corresponds to any one of the first state, the second state, and the third state, and the control unit determines that the laundry amount is the second reference amount. When the first reference amount is greater than the first reference amount and the second reference amount or less, and the cloth is in the second state, the laundry is controlled to distribute the laundry by accelerating rotation with a first acceleration corresponding to the sensed cloth weight and cloth, and the second reference amount is greater than the first reference amount, The third reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry having the same cloth, the second condition is a combination of laundry having the same cloth and laundry having different cloths, and the third condition is that the cloth is different. It is a combination of a plurality of different laundry.

In addition, the laundry amount according to the embodiment includes a first reference amount, a second reference amount, and a third reference amount, the cloth quality corresponds to any one of the first state, the second state, and the third state, and the control unit determines that the laundry amount is the second reference amount. When the first reference amount is greater than the second reference amount and the cloth is in the third state, the laundry is controlled to distribute the laundry by accelerating rotation with a first acceleration corresponding to the sensed cloth weight and cloth, and the second reference amount is greater than the first reference amount , the third reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry having the same cloth, the second condition is a combination of laundry having the same cloth and laundry having different cloths, and the third condition is: This is a combination of a plurality of different laundry.

In addition, the laundry amount according to the embodiment includes a first reference amount, a second reference amount, and a third reference amount, the cloth quality corresponds to any one of the first state, the second state, and the third state, and the control unit determines that the laundry amount is the second reference amount. 3 In the case of the reference amount, the laundry is controlled to distribute the laundry by accelerating rotation with a first acceleration corresponding to the sensed laundry weight and cloth quality, the second reference amount is greater than the first reference amount, the third reference amount is greater than the second reference amount, and the first state is a combination of a plurality of laundry with the same cloth, the second state is a combination of laundry with the same cloth and laundry with different cloths, and the third state is a combination of a plurality of laundry with different cloths.

In addition, the laundry amount according to the embodiment includes a first reference amount, a second reference amount, and a third reference amount, the cloth quality corresponds to any one of the first state, the second state, and the third state, and the control unit determines that the laundry amount is the second reference amount. 3 When the reference amount is exceeded and the cloth is in the first state, the driving unit is controlled to distribute the laundry by accelerating rotation with a first acceleration corresponding to the sensed cloth weight and cloth, and the second reference amount is greater than the first reference amount, and the third reference amount is greater than the third reference amount. The reference amount is greater than the second reference amount, the first state is a combination of a plurality of laundry with the same cloth, the second condition is a combination of laundry with the same cloth and laundry with different cloths, and the third condition is a plurality of laundry with different cloths. is a combination of laundry.

The washing machine and the control method of the washing machine according to the embodiment have an effect of dispersing the cloth according to the cloth in the dehydration cycle of the washing machine.

In addition, the washing machine and the control method of the washing machine according to the embodiment have an effect of dispersing the clothes according to the amount of laundry in the dehydration cycle of the washing machine.

In addition, the washing machine and the control method of the washing machine according to the embodiment have an effect of dispersing the clothes according to the amount and fabric quality in the dehydration cycle of the washing machine.

In addition, the washing machine and the control method of the washing machine according to the embodiment have an effect of providing a cloth distribution table in the spin-drying cycle of the washing machine.

In addition, the washing machine and the control method of the washing machine according to the embodiment have an effect of dispersing the cloth according to the amount of laundry using the cloth distribution table and performing a spin-drying operation.

In addition, the washing machine and the control method of the washing machine according to the embodiment have an effect of dispersing the cloth according to the cloth using the cloth distribution table and performing a dehydration operation.

In addition, the washing machine and the control method of the washing machine according to the embodiment have an effect of dispersing the clothes according to the amount and quality of the clothes using the cloth distribution table.

1 is a view showing the configuration of a washing machine according to an embodiment.
2 is a block diagram illustrating a main configuration of a washing machine according to an embodiment.
3 is a flowchart illustrating a dewatering process according to an embodiment.
4 is a flowchart illustrating a process of detecting and dispersing a cloth amount and cloth during a dehydration process according to an embodiment.

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings. Advantages and features of the embodiments and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, it is not limited to the embodiments disclosed below and may be implemented in various different forms, and only the present embodiments allow the disclosure of the invention to be complete, and the invention is provided to those of ordinary skill in the art to which the embodiment belongs. It is provided to fully inform the scope of the invention, and the embodiments are only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with meanings that can be commonly understood by those of ordinary skill in the art to which the embodiment belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular. The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the embodiments. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase.

Hereinafter, a configuration of a washing machine according to an embodiment will be described with reference to FIG. 1 .

1 is a view showing the configuration of a washing machine according to an embodiment.

The washing machine 1 according to the embodiment includes a cabinet 10 , a door 20 , a tub 30 , a motor 40 , a rotating shaft 50 , a drum 60 , and a control panel 70 .

The cabinet 10 forms the exterior of the washing machine 1 . In addition, the front of the cabinet 10 includes a laundry inlet 11 that communicates the inside and the outside of the washing machine 1 and into which laundry is put.

The door 20 is provided on the front part of the cabinet 10 . In addition, the user may selectively lock the laundry inlet 11 of the cabinet 10 by using the door 20 . Accordingly, the user can put the laundry into the drum 60 by opening and closing the door 20 or take out the laundry from the inside of the drum 60 .

The tub 30 is installed inside the cabinet 10 . In this case, washing water may be stored in the tub 30 . That is, the tub 30 may supply wash water from an external water supply source to the inside to store the wash water.

The water supply valve 31 regulates clean water supplied to the tub 30 through an external hose.

The water supply hose 32 is a path through which the wash water input to the tub 30 passes through the water supply valve 31 .

The detergent supply device 33 mixes the water supplied through the water supply hose 32 with the detergent stored in advance and then discharges it.

The water supply pipe 34 has one end connected to the outlet of the detergent supply device 33 and the other end connected to the upper end of the tub 30 . The water supply pipe 34 guides the detergent-containing water or the detergent-free clean water discharged from the detergent supply device 33 to the tub 30 .

The drain pump 35 provides power for discharging the wash water accommodated in the tub 30 .

The first drain pipe 36 inputs the wash water accommodated in the tub 30 by using the power provided from the drain pump 35 .

The second drain pipe 37 discharges wash water from the drain pump 35 to the outside of the cabinet 10 .

The motor 40 is installed inside the tub 30 . The motor 40 generates a driving force for operating the washing machine 1 .

The rotating shaft 50 connects the motor 40 and the drum 60 . The rotating shaft 50 transmits the driving force generated by the motor 40 to the drum 60 .

The drum 60 is rotatably provided inside the tub 30 and is formed so that laundry is put therein. In addition, the drum 60 is connected to the motor 40 and the rotating shaft 50 to wash the laundry inside the drum 60 using the driving force transmitted from the motor 40 .

The control panel 70 receives various control commands from the user. In addition, various states of the washing machine are displayed. Meanwhile, although FIG. 1 shows a structure in which the control panel 70 is provided on the front side of the cabinet 10 , the present invention is not limited thereto.

Hereinafter, a main configuration of a washing machine according to an embodiment will be described with reference to FIG. 2 .

2 is a block diagram illustrating a main configuration of a washing machine according to an embodiment.

The washing machine 1 is a laundry device that performs a method of controlling a dehydration cycle. It includes an amount sensing unit 250 , a memory 260 , an output unit 270 , a communication unit 280 , and a driving unit 290 .

The control unit 200 controls the driving unit 290 according to an input signal and a pre-input process to perform a washing process including a washing process, a rinsing process, and a spin-drying process.

In addition, the control unit 200 includes a current sensing unit 210 , a laundry quantity sensing unit 220 , a cloth quantity sensing unit 230 , an eccentricity sensing unit 240 , a vibration quantity sensing unit 250 , a memory 260 , and a display ( 270), continuously receives a signal from the communication unit 280 to control the driving unit 290, and controls the display 270 to display each step.

In addition, the control unit 200 receives the signal for the amount of cloth detected by the laundry weight detection unit 220 and the signal for the cloth detected by the cloth detection unit 230 to determine the amount of cloth and the cloth inside the drum 60 . can

In addition, the control unit 200 determines which of the categories in which the laundry weight and cloth contents included in the drum 60 belong to pre-classified categories using the data signal received from the laundry weight detection unit 220 and the cloth material detection unit 230 . can be judged.

Specifically, the control unit 200 receives the laundry weight data from the laundry weight detection unit 220 . In this case, the control unit 200 may determine the laundry amount of the laundry inside the drum 60 based on the data learned from the laundry weight detection unit 220 , and determine the level according to the laundry amount. The determination of the laundry amount may be an operation of classifying the laundry put into the drum 60 into a plurality of preset laundry weight levels (LEVEL) according to the weight.

In addition, the control unit 200 receives the data on the cloth from the cloth sensor 230 . In this case, the control unit 200 may determine the state of the laundry in the drum 60 according to the cloth based on the data learned from the cloth detecting unit 230 . The determination of the cloth may be a task of classifying the laundry put into the drum 60 into a plurality of pre-set cloth states according to the material.

At this time, the cloth is the material of the laundry, the degree of softness (eg, soft laundry/hard laundry), the ability of the laundry to hold water (moisture content), the difference in volume between the dry cloth and the wet cloth, etc. It can be defined based on several factors.

In addition, the control unit 200 determines whether to accelerate the drum 60 by using the eccentricity of the drum 60 received from the eccentricity detection unit 240 . This is because the laundry inside the drum 60 is not evenly distributed, and when it is concentrated in a predetermined area, the eccentricity of the drum increases, and when the driving unit 290 increases the rotation speed of the drum 60, noise and vibration may increase. Because.

At this time, the control unit 200 stores the reference eccentricity that allows acceleration according to the amount of compresses in the memory 260 in advance as data. In addition, when the eccentricity of the rotating drum 60 is equal to or greater than the reference eccentricity, when the drum 60 is accelerated at a high speed, the vibration and noise of the drum 60 are remarkably increased, so the control unit 200 controls the eccentricity detection unit 240 It is determined whether to accelerate the rotation of the drum 60 by comparing the detected eccentricity with the reference eccentricity stored in the memory 260 in advance.

More specifically, when the sensed eccentricity is greater than or equal to the reference eccentricity, the control unit 200 controls the laundry amount sensing unit 220 and the cloth sensing unit 220 to detect the laundry amount and cloth inside the drum 16 again. In addition, the control unit 200 receives data on the amount of laundry detected by the laundry weight detection unit 220 and transmits the data to the cloth weight detection unit 220 . Also, the control unit 200 controls the cloth detecting unit 220 to detect the cloth inside the drum 16 again using the data on the amount of cloth received by the cloth detecting unit 220 . In addition, the control unit 200 receives data on the foreskin detected by the foreskin detection unit 220 . On the other hand, the control unit 200 controls the driving unit 290 to accelerate the rotation of the drum 16 according to the drum acceleration because the acceleration condition is satisfied when the sensed eccentricity is equal to or less than the reference eccentricity.

In this case, the drum acceleration refers to the rotational acceleration of the drum. In addition, the acceleration means the rotational acceleration of the drum (60). The unit of drum acceleration is RPM/ms, which means a change in the speed of the drum 60 for 1 millisecond. The drum speed is expressed in revolutions per minute (RPM) as the number of revolutions of the drum 60 per minute.

In addition, the control unit 200 may update the memory 260 by processing various data received through the communication unit 280 . For example, when the data input through the communication unit 280 is update data for a program previously stored in the memory 260, the memory 260 is updated using this data, and when the input data is a new program, the memory It can be further stored in 260

The current sensing unit 210 senses a current applied to the motor 40 connected to the drum 60 when the drum 60 rotates. In addition, the current sensing unit 210 transmits a signal for the sensed current to the control unit 200 .

The laundry amount sensing unit 220 detects the amount of laundry put into the drum 60 . At this time, the laundry amount is determined by the current value sensed by the current sensing unit 210 until the drum 60 reaches a predetermined rotation speed RPM1, drives at a constant speed, and decelerates. Also, the laundry amount detection unit 220 transmits a signal for the detected laundry weight to the control unit 200 .

In this case, the laundry amount detection unit 220 may sense the amount of laundry inside the drum 60 by using the current value received from the current detection unit 210 as input data of the artificial neural network. That is, the laundry amount sensor 220 uses the received current value as input data of the artificial neural network. Also, the laundry amount detecting unit 220 generates output data corresponding to the input data by using machine learning. In this case, the output data includes data about the laundry amount.

In this case, the amount of laundry detected by the laundry amount sensing unit 220 is the amount of wet cloth. The reason for detecting the amount of wet cloth is that the weight of the wet laundry is different from the weight of the dry laundry even though the amount of non-wet laundry, that is, the dry weight, is detected at the beginning of the washing cycle. The sensed amount of wet cloth acts as a factor determining an allowable condition for accelerating the drum 60 in a plurality of acceleration processes to be described later, or determining to perform the cloth dispersion process again by decelerating the drum 60 during the acceleration process. .

In addition, the cloth detecting unit 220 detects cloth input into the drum 60 . The control unit 200 transmits a signal for the amount of laundry transmitted from the laundry weight sensing unit 220 to the cloth weight sensing unit 220 . At this time, the cloth sensing unit 220 processes the current values (signals for the amount of cloth) sensed by the current sensing unit 210 until the drum 60 reaches a predetermined rotational speed to thereby process the cloth in the drum 60 . can detect

For example, the cloth weight detection unit 220 receives a signal for the amount of laundry detected by the cloth weight detection unit 220 from the control unit 200 . The cloth weight detection unit 220 uses, as input data of the artificial neural network, the average value of the detected current values included in the signal for the laundry amount received from the laundry weight detection unit 220 for each predetermined time period as input data to the drum (60). It can detect the follicles inside. The foreskin detection unit 220 outputs output data with respect to the input data. At this time, the output data includes data about the foreskin. In addition, the foreskin detection unit 220 transmits data on the foreskin to the control unit 200 .

The eccentricity detection unit 240 detects the eccentricity of the drum 60 . In this case, the eccentricity detecting unit 240 may detect the eccentricity based on the amount of change in the rotational speed of the driving unit 290 that varies depending on the distribution state of the laundry in the drum 60 . In addition, the eccentricity detection unit 240 transmits the sensed eccentricity of the drum 60 to the controller 200 .

Specifically, when the drum 60 rotates, the eccentricity detection unit 240 may detect the eccentricity by using a difference in rotational acceleration of the drum 60 . The difference in rotational acceleration occurs when the drum 60 in which the eccentricity occurs is rotated downward according to gravity according to the degree of occurrence of the eccentricity and when it rotates upward as opposed to the gravity. In addition, the eccentricity sensing unit 240 detects the eccentricity by measuring the difference in rotational acceleration when the drum 60 rotates downward and upwards using the rotation speed sensing unit 300 , and the control unit 200 . forward to

In addition, in order for the eccentricity detection unit 240 to detect the eccentricity of the drum 60, even when the drum 60 rotates, the laundry inside the drum 60 does not leave the inner surface of the drum 60 and is on the inner circumferential surface of the drum 60. should stay attached. Therefore, the drum 60 must rotate in a state of gluing. Accordingly, the drum 60 rotates at a constant speed at a rotation speed RPM1 of approximately 100 to 110 RPM.

The vibration amount detection unit 250 is for detecting vibrations generated when the drum 60 rotates, and is provided separately from the eccentricity detection unit 240 . The vibration amount sensing unit 250 may sense the vibration amount based on the displacement or vibration period of the mass body that moves according to the vibration generated when the drum 60 rotates.

In the memory 260, there is a programmed artificial neural network, current patterns for each weight and/or cloth weight, and a database (DB) built through machine learning-based learning based on current patterns, a machine learning algorithm, and a current sensing unit 210 . ), a current value sensed in a predetermined time period, an average value of the sensed current values for each predetermined time period, and the like may be stored.

In addition, the memory 260 may store various control data for controlling the overall operation of the washing machine 1 , laundry setting data input by a user, washing time calculated according to washing settings, data on a washing course, and the like. .

The display 270 outputs the operating state of the washing machine 1 . The display 270 may be an image output device such as an LCD or LED that outputs a visual display, or a sound output device such as a speaker buzzer that outputs a sound. In addition, under the control of the controller 200 , the display 270 may output information on the amount of laundry or cloth quality.

The communication unit 280 may communicate with a server connected to a network. In this case, the communication unit 280 may include one or more communication modules such as an Internet module and a mobile communication module. Also, the communication unit 280 may receive various data such as learning data and algorithm update from the server.

The driving unit 290 provides a driving force for rotating the drum 60 , and in the embodiment, the above-described motor 40 , one end is connected to the motor 40 and the other end is connected to the drum 60 , the rotating shaft 50 . ) is made of

Hereinafter, a polydispersity table according to an embodiment will be described with reference to Table 1.

[ Table 1 ]

Table 1 is a fabric dispersion table of the dehydration cycle of the washing machine according to the embodiment.

Referring to Table 1, the laundry amount according to the embodiment is classified into 9 levels (LEVEL). The control unit 200 classifies the laundry amount in the tub 30 from level 0 to level 9 based on the data learned by the laundry weight detection unit 220 . At this time, the amount of laundry increases from level 0 to level 9.

Hereinafter, the case where the dehydrated laundry amount is level 1 is defined as the first reference amount, the case of level 5 is defined as the second reference amount, and the case where the dewatering amount is level 6 is defined as the third reference amount. In addition, when the amount of laundry is less than or equal to the first reference amount, that is, the amount of laundry from level 0 to level 1 is defined as a small amount. When the amount of laundry exceeds the first reference amount and is less than or equal to the second reference amount, that is, the amount of laundry from level 2 to level 5 is defined as low weight. When the laundry amount is the third reference amount, that is, the level 6 laundry amount is defined as the weight. When the amount of laundry exceeds the third reference amount, that is, the amount of laundry from level 8 to level 9 is defined as bulk.

In addition, referring to Table 1, the pore according to the embodiment is classified into three states. The control unit 200 may classify the cloths of the laundry inside the drum 60 into classes 1 to 3 based on the data learned by the cloth detecting unit 220 . Class 1 is a combination of smaller laundry and similar types of fabric. That is, it is a combination of a plurality of laundry having the same cloth. Class 2 is a combination of the intermediate type of class 1 and class 3. That is, it is a combination of laundry with the same cloth and laundry with different cloths. Class 3 is a combination of large and different cells. This is a combination of long and easily tangled clothes. That is, it is a combination of a plurality of laundry having different fabrics. Hereinafter, a case in which the foreskin is class 1 is referred to as a first state, a case in which the foreskin is class 2 is referred to as a second state, and a case in which the foreskin is class 3 is referred to as a third state.

Referring to Table 1, it can be seen that when the drum 60 is accelerated for cloth dispersion, the acceleration gradient of the drum 60 is applied differently according to the amount of cloth and the cloth. This is to maximize the effect of fabric dispersion when the drum 60 is accelerated for fabric dispersion prior to carrying out fabric dispersion.

Hereinafter, the rotational speed and acceleration of the drum 60 in the cloth distribution process (a) in Table 1 will be described with reference to the case where the amount of cloth is less than or equal to the first reference amount, that is, the level 0 to level 1 in which the amount of cloth is small.

When the amount of cloth inside the drum is level 0, which is less than the first reference amount, and the cloth is in the first state, the control unit 200 controls the drum 60 at the first acceleration when the first, second, and third cloths are dispersed. ) to accelerate rotation. In addition, when the rotation speed of the drum 60 reaches 45 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. At this time, the first acceleration is 14.0 RPM/s.

In addition, when the amount of cloth inside the drum is level 1, which is the first reference amount, and the cloth is in the first state, the control unit 200 controls the drum at the first acceleration during the first, second, and third cloth dispersion processes. (60) to accelerate rotation. In addition, when the rotation speed of the drum 60 reaches 45 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. At this time, the first acceleration is 14.0 RPM/s.

In addition, when the amount of cloth in the drum exceeds the first reference amount and less than the second reference amount is Level 2, and the cloth is in the first state, the control unit 200 performs the first, second, and third cloth dispersion processes. is accelerated rotation of the drum 60 with the first acceleration. In addition, when the rotation speed of the drum 60 reaches 45 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. At this time, at this time, the first acceleration is 14.0 RPM/s.

In addition, when the amount of cloth in the drum exceeds the first reference amount and is less than the second reference amount of Level 2, and the cloth is in the second state, the control unit 200 controls the second The drum 60 is accelerated and rotated with an acceleration. In addition, the controller 200 distributes laundry by rotating the drum 60 at a constant speed when the rotation speed of the drum 60 reaches 50 RPM. Also, in the third cloth dispersion process, the controller 200 rotates the drum 60 with the second acceleration. In addition, when the rotation speed of the drum 60 reaches 45 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. At this time, the second acceleration is 7.7 RPM/s.

In addition, when the amount of cloth inside the drum 60 is greater than the first reference amount and less than the second reference amount of Level 2 and the cloth is in the third state, the control unit 200 performs the first, second, and third cloth dispersion processes. Reference numeral 200 accelerates and rotates the drum 60 at a second acceleration. In addition, the controller 200 distributes laundry by rotating the drum 60 at a constant speed when the rotation speed of the drum 60 reaches 50 RPM. At this time, the second acceleration is 7.7 RPM/s.

In addition, when the amount of cloth inside the drum 60 is greater than the first reference amount and less than the second reference amount of Level 3 and the cloth is in the first state, the control unit 200 performs the first, second, and third cloth dispersion processes. (200) accelerates rotation of the drum 60 with a first acceleration. In addition, the controller 200 distributes laundry by rotating the drum 60 at a constant speed when the rotation speed of the drum 60 reaches 50 RPM. At this time, the first acceleration is 14.0 RPM/s.

In addition, when the amount of cloth in the drum exceeds the first reference amount and is less than the second reference amount of Level 3, and the cloth is in the second state, the controller 200 controls the second The drum 60 is accelerated and rotated with an acceleration. In addition, the controller 200 distributes laundry by rotating the drum 60 at a constant speed when the rotation speed of the drum 60 reaches 60 RPM. At this time, the second acceleration is 7.7 RPM/s.

In addition, when the amount of cloth in the drum exceeds the first reference amount and less than the second reference amount is Level 3, and the cloth is in the third state, the control unit 200 performs the first, second, and third cloth dispersion processes. is accelerated rotation of the drum 60 with the second acceleration. In addition, the controller 200 distributes laundry by rotating the drum 60 at a constant speed when the rotation speed of the drum 60 reaches 60 RPM. At this time, at this time, the second acceleration is 7.7 RPM/s.

In addition, when the amount of cloth in the drum exceeds the first reference amount and less than the second reference amount is level 4, and the cloth is in the first state, the control unit 200 performs the first, second, and third cloth dispersion processes. is accelerated rotation of the drum 60 with the first acceleration. In addition, the controller 200 distributes laundry by rotating the drum 60 at a constant speed when the rotation speed of the drum 60 reaches 60 RPM. At this time, the first acceleration is 14.0 RPM/s.

In addition, when the amount of cloth inside the drum is level 4 in which the amount of cloth exceeds the first reference amount and is less than the second reference amount, and the cloth is in the second state, in the first cloth dispersion process, the control unit 200 controls the drum at the second acceleration. (60) to accelerate rotation. In addition, when the rotation speed of the drum 60 reaches 68 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. In the second cloth dispersion process, the control unit 200 accelerates rotation of the drum 60 with a second acceleration. In addition, when the rotation speed of the drum 60 reaches 65 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. Also, in the third cloth dispersion process, the control unit 200 accelerates the drum 60 with the second acceleration. In addition, the controller 200 distributes laundry by rotating the drum 60 at a constant speed when the rotation speed of the drum 60 reaches 60 RPM. At this time, at this time, the second acceleration is 7.7 RPM/s.

In addition, when the amount of cloth inside the drum is level 4 in which the amount of cloth exceeds the first reference amount and is less than the second reference amount, and the cloth is in the third state, in the first cloth dispersion process, the control unit 200 controls the drum at the second acceleration. (60) to accelerate rotation. In addition, when the rotation speed of the drum 60 reaches 68 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. In the second and third cloth dispersion processes, the control unit 200 accelerates rotation of the drum 60 with a second acceleration. In addition, when the rotation speed of the drum 60 reaches the rotation speed of 65 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. At this time, the second acceleration is 7.7 rpm/s.

In addition, when the amount of cloth inside the drum is level 5, which is the second reference amount, and the cloth is in the first state, the control unit 200 accelerates and rotates the drum 60 with a first acceleration during the first cloth dispersion process. make it In addition, when the rotation speed of the drum 60 reaches 68 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. In the second and third cloth dispersion processes, the control unit 200 accelerates rotation of the drum 60 with a first acceleration. In addition, when the rotation speed of the drum 60 reaches 65 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. At this time, at this time, the first acceleration is 14.0 rpm/s.

Also, when the amount of cloth inside the drum is level 5, which is the second reference amount, and the cloth is in the second state, the control unit 200 accelerates and rotates the drum 60 at a second acceleration during the first cloth dispersion process. make it In addition, when the rotation speed of the drum 60 reaches 68 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. In the second and third cloth dispersion processes, the control unit 200 accelerates rotation of the drum 60 with a second acceleration. In addition, when the rotation speed of the drum 60 reaches 50 RPM, the control unit 200 rotates the drum 60 at a constant speed to disperse the laundry. At this time, the second acceleration is 7.7 rpm/s.

In addition, when the amount of cloth inside the drum is level 5, which is the second reference amount, and the cloth is in the third state, in the first cloth dispersion process, the control unit 200 accelerates and rotates the drum 60 at a second acceleration. make it In addition, the controller 200 distributes laundry by rotating at a constant speed when the rotational speed of the drum 60 reaches 68RPM. In the second and third dusting processes, the control unit 200 accelerates rotation of the drum 60 with a second acceleration. In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 60 reaches 65RPM. At this time, the second acceleration is 7.7 rpm/s.

Also, when the amount of cloth inside the drum is level 6, which is the third reference amount, and the cloth is in the first state, the control unit 200 accelerates and rotates the drum 60 at a second acceleration during the first cloth dispersion process. make it In addition, the controller 200 distributes laundry by rotating at a constant speed when the rotational speed of the drum 60 reaches 68RPM. In the second and third cloth dispersion processes, the control unit 200 accelerates rotation of the drum 60 with a second acceleration. In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 60 reaches 65RPM. At this time, the second acceleration is 7.7 rpm/s.

In addition, when the amount of cloth inside the drum is level 6, which is the third reference amount, and the cloth is in the second state, the control unit 200 accelerates and rotates the drum 16 at a second acceleration during the first cloth dispersion process. make it In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 16 reaches 68RPM. At this time, the second acceleration is 7.7 rpm/s.

Also, when the amount of cloth inside the drum is level 6, which is the third reference amount, and the cloth is in the third state, the control unit 200 accelerates and rotates the drum 16 at a second acceleration during the first cloth dispersion process. make it In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 16 reaches 68RPM. In the second and third cloth dispersion processes, the control unit 200 accelerates rotation of the drum 16 with a second acceleration. In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 16 reaches 65RPM. At this time, the second acceleration is 7.7 rpm/s.

In addition, when the amount of cloth in the drum exceeds the third reference amount of level 7 and the cloth is in the first state, the control unit 200 controls the drum 16 with a second acceleration during the first cloth dispersion process. accelerate rotation. In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 16 reaches 70 RPM. In the second and third cloth dispersion processes, the control unit 200 accelerates rotation of the drum 16 with a second acceleration. In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 16 reaches 68RPM. At this time, the second acceleration is 7.7 rpm/s.

In addition, when the amount of cloth in the drum exceeds the third reference amount of level 8 and the cloth is in the second state, the control unit 200 controls the drum 16 with a second acceleration during the first cloth dispersion process. accelerate rotation. In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 16 reaches 70 RPM. At this time, the second acceleration is 7.7 rpm/s.

In addition, when the amount of cloth in the drum exceeds the third reference amount of level 9 and the cloth is in the third state, the control unit 200 controls the drum 16 with a second acceleration during the first cloth dispersion process. accelerate rotation. In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 16 reaches 70 RPM. In the second and third cloth dispersion processes, the control unit 200 accelerates rotation of the drum 16 with a second acceleration. In addition, the controller 200 distributes the laundry by rotating at a constant speed when the rotational speed of the drum 16 reaches 68RPM. At this time, the second acceleration is 7.7 rpm/s.

Hereinafter, a process of dispersing clothes and performing a dehydration process according to the sensed amount and fabric quality according to the embodiment will be described with reference to FIG. 3 .

3 is a flowchart illustrating a process of dispersing cloth and performing a dehydration cycle according to a sensed amount of cloth and cloth according to an embodiment;

In step S400, the amount of cloth and cloth inside the drum 16 is sensed, and the drum 16 is rotated at a rotation speed and acceleration determined according to the sensed cloth weight and cloth to perform the cloth dispersion process (a).

In step S410, the amount of eccentricity of the drum 16 rotating at a constant speed is sensed.

Specifically, the control unit 200 senses the laundry amount and cloth quality. Also, the control unit 200 accelerates and rotates the drum 60 with a drum acceleration corresponding to the sensed laundry amount and cloth quality. At this time, when the speed of the acceleratedly rotated drum 16 reaches a predetermined speed RPM1 corresponding to the sensed amount of cloth and cloth, the control unit 200 controls the driving unit 290 to rotate the drum 60 at a constant speed. do. The eccentricity detection unit 240 detects the eccentricity of the drum 60 rotating at a constant speed. In addition, the eccentricity detection unit 240 transmits the sensed eccentricity amount to the controller 200 .

In step S420, it is determined whether the detected eccentricity of the drum 16 exceeds a reference eccentricity.

Specifically, the control unit 200 determines whether to accelerate the drum 60 using the eccentricity of the drum 60 received from the eccentricity detection unit 240 . At this time, if the sensed amount of eccentricity of the drum 16 exceeds the reference eccentricity that is a reference allowable value, the rotation of the drum 60 is stopped. In addition, the control unit 200 detects the amount of cloth and cloth again, and controls the cloth dispersion process (a) to be performed.

In step S430 , if the detected amount of eccentricity of the drum 16 does not exceed the reference eccentricity that is a reference allowable value, the control unit 200 controls the drum 16 to rotate in an accelerated manner. In addition, the eccentricity detection unit 240 detects the eccentricity of the drum 16 during accelerated rotation.

In step S440, it is determined whether the detected eccentricity of the drum 16 exceeds a reference eccentricity.

Specifically, when the sensed amount of eccentricity of the drum 16 exceeds the reference eccentricity that is a reference allowable value, the rotation of the drum 60 is stopped. In addition, the control unit 200 detects the amount of cloth and cloth again, and controls the cloth dispersion process (a) to be performed.

In step S450, if the sensed eccentricity of the drum 16 does not exceed the reference eccentricity, which is the reference allowable value, the dehydration degree indicating the state of draining the laundry is set.

In step S460, the control unit 200 sets the rotation time of the drum 16 according to the dehydration degree.

In step S470, the drum 16 spins the laundry for a rotation time set according to the dehydration degree.

Hereinafter, with reference to FIG. 4 , a process of detecting and dispersing the amount of cloth and cloth in the dehydration cycle of the washing machine according to the embodiment will be described.

4 is a view for explaining a process of detecting and dispersing the amount of cloth and cloth in the dehydration cycle of the washing machine according to the embodiment.

The dehydration process according to the embodiment includes a cloth dispersion process (a) and a dehydration process (b).

The cloth dispersion process (a) is performed from the first time point t1 to the fourth time point t4. The cloth dispersion process (a) refers to a process in which the controller 200 rotates the drum 60 and evenly distributes the laundry inside the drum 60 .

The dehydration process (b) is performed from the fourth time point t4 to the fourteenth time point t14. In the dehydration process (b), the controller 200 rotates the drum 60 to remove moisture from the laundry inside the drum 60 .

However, the polydispersion process (a) and the dehydration process (b) are named based on their main function, and the function in each step is not limited according to the name. For example, in the cloth dispersion process (a), dehydration may be performed to remove water from laundry by rotation of the drum 60 as well as cloth dispersion, and cloth dispersion may be performed during the dehydration process (b). .

The fabric dispersion process (a) includes a sensing process (a1) and a fabric unwinding process (a2). Hereinafter, each process will be described in detail.

At this time, in the sensing process (a1), the laundry amount sensing unit 220 detects the amount of laundry inside the drum 60 .

More specifically, in the sensing process (a1), the laundry amount sensing unit 220 detects the current detected by the current sensing unit 210 until the drum 60 reaches a predetermined rotation speed RPM1, drives at a constant speed, and decelerates. A value is received from the control unit 200 . At this time, the amount of laundry inside the drum 60 is measured when the drum 60 is accelerated to about 100 to 110 RPM, preferably 108 RPM (RPM1), operated at a constant speed for a predetermined time, and then decelerated. Also, the laundry weight detection unit 200 transmits data on the detected laundry weight to the control unit 200 .

In addition, in the sensing process (a1), the cloth sensor 220 detects the cloth input into the drum 16 .

More specifically, in the sensing process (a1), the control unit 200 transmits the laundry weight signal transmitted from the laundry weight sensing unit 220 to the cloth weight sensing unit 52 . The cloth detecting unit 220 detects cloth inside the tub 30 by using the signal for the amount of cloth received from the control unit 200 . In addition, the foreskin detection unit 220 transmits data on the detected cloth to the control unit 200 .

In addition, in the sensing process (a1), the control unit 200 uses the laundry weight and cloth data received from the laundry weight detection unit 220 and the cloth detection unit 220 to determine the categories according to the laundry weight and cloth quality inside the drum 16 . can be classified. In this case, the categories are classified according to the amount of cloth and the quality of the cloth using the cloth distribution table according to the embodiment of Table 1 described above.

Hereinafter, the annealing process (a2) will be described. The unwinding process (a2) is performed after the sensing process (a1). At this time, the unwinding process (a2) is performed from the third time point t3 to the fourth time point t4. The unwinding process (a2) is a step in which the controller 200 accelerates the drum 16 to control the driving unit 290 so that the laundry inside the drum 16 is evenly distributed. The control unit 200 gradually accelerates the drum 16 to a predetermined rotation speed RPM1 with the drum acceleration. At this time, the predetermined rotation speed RPM1 is a rotation speed at which the eccentricity detection process b1 starts.

Hereinafter, the fabric dispersion performed in the fabric dispersion process (a), the eccentricity sensing process (b1), the third acceleration process (b2), and the third dehydration maintenance process (b3) will be referred to as first fabric dispersion. . In addition, fabric dispersion performed in the second acceleration process (b4) and the second dehydration maintenance process (b5) is referred to as a second fabric dispersion. In addition, fabric dispersion performed in the first acceleration process (b6) and the first dehydration maintenance process (b7) is referred to as a third fabric dispersion.

Hereinafter, the dehydration process (b) will be described. The dehydration process (b) is a step of rotating the drum 60 of the washing machine 1 to remove moisture contained in the laundry. The dehydration process (b) is performed from the fourth time point t4 to the twelfth time point t12.

The dehydration process (b) includes the eccentricity sensing process (b1), the third acceleration process (b2), the third dehydration maintenance process (b3), the second acceleration process (b4), the second dehydration maintenance process (b5), and the first It consists of an acceleration process (b6) and a 1st dehydration maintenance process (b7).

Hereinafter, the eccentricity detection process (b1) will be described.

The eccentricity detection process b1 is performed from the fourth time t4 to the fifth time t5. In the eccentricity detection process (b1), the controller 200 controls the driving unit 290 to rotate the drum 60 at a constant speed at a speed of 100RPM to 110RPM, preferably 108RPM (RPM1). At this time, the eccentricity detection unit 240 detects the eccentricity of the drum 60 rotating at a constant speed.

At this time, when the amount of eccentricity detected by the eccentricity detection unit 240 in the eccentricity detection process (b1) exceeds the reference eccentricity that is the reference allowable value, the control unit 200 lowers the rotational speed of the drum 60 and then the The driving unit 290 is controlled to stop the rotation. Also, the control unit 200 controls the driving unit 290 to perform the first cloth dispersion process (a). At this time, the cloth weight and cloth are sensed again, and the drum 16 is accelerated and rotated with an acceleration according to the detected cloth weight and cloth.

More specifically, in the sensing process (a1), the control unit 200 controls the laundry amount detecting unit 220 to detect the amount of laundry. In addition, the control unit 200 controls the cloth detecting unit 230 to detect the cloth.

For example, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class 1 as the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration slope of 14.0 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 68 RPM (RPM1).

In addition, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class2 as the second state, the control unit 200 performs the unwinding process (a2) In order to accelerate to an acceleration slope of 7.7 RPM / S, the drum 16 controls the driving unit 290 to start a constant speed rotation at a rotation speed of 68 RPM (RPM1).

Also, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class 3 as the third state, the control unit 200 performs the unwinding process (a2) In order to accelerate with an acceleration gradient of 7.7 RPM/S, the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 68 RPM (RPM1).

Also, in the sensing process (a1), when the amount of fabric detected by the laundry amount sensing unit 220 exceeds the third reference amount of LEVEL7 and the fabric is class 1 in the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration gradient of 7.7 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 70 RPM (RPM1).

In addition, in the sensing process (a1), when the amount of fabric detected by the laundry amount sensing unit 220 exceeds the third reference amount of LEVEL8 and the fabric is class 1 in the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration gradient of 7.7 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 70 RPM (RPM1). At this time, the control unit 200 controls the driving unit 290 to detect the eccentricity of the drum 16 rotating at a constant speed again.

On the other hand, in the eccentricity detection process (b1), the controller 200 satisfies the acceleration allowable condition if the eccentricity according to the amount of compresses detected by the eccentricity detection unit 240 is less than or equal to the reference eccentricity, so that the driving unit proceeds with the third acceleration process (b2) (290) is controlled.

Meanwhile, the third acceleration process b2 is performed from the fifth time point t5 to the sixth time point t6. In the third acceleration process (b2), the control unit 200 controls the driving unit 290 so that the drum 16 is accelerated to a predetermined rotation speed (RPM2) of 130RPM to 150RPM. Also, while the drum 16 is being accelerated, the eccentricity detecting unit 240 detects the eccentricity of the rotating drum 16 .

At this time, when the amount of eccentricity detected by the eccentricity detection unit 240 exceeds the reference eccentricity, the controller 200 lowers the rotational speed of the drum 60 and then the driving unit to stop the rotation of the drum 60 . (290) is controlled. Also, the control unit 200 controls the driving unit 290 to perform the first cloth dispersion process (a) without accelerating the drum 16 . At this time, the controller 200 detects the laundry weight and cloth again, and then controls the drum 16 to accelerate and rotate with an acceleration according to the sensed cloth weight and cloth.

The control unit 200 accelerates the drum 16 to a predetermined rotational speed RPM1 with a drum acceleration determined according to the amount and cloth weight detected by the cloth weight detection unit 220 and the cloth detection unit 220 in the cloth distribution table. Repeat the annealing process (a2).

For example, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class 1 as the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration slope of 14.0 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a predetermined rotation speed of 65 RPM (RPM1).

In addition, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class2 as the second state, the control unit 200 performs the unwinding process (a2) In order to accelerate to an acceleration slope of 7.7 RPM/S, the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 68 RPM (RPM1).

Also, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class 3 as the third state, the control unit 200 performs the unwinding process (a2) In order to accelerate with an acceleration gradient of 7.7 RPM/S, the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 68 RPM (RPM1).

Also, in the sensing process (a1), when the amount of fabric detected by the laundry amount sensing unit 220 exceeds the third reference amount of LEVEL7 and the fabric is class 1 in the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration gradient of 7.7 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 70 RPM (RPM1).

In addition, in the sensing process (a1), when the amount of fabric detected by the laundry amount sensing unit 220 exceeds the third reference amount of LEVEL8 and the fabric is class 1 in the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration gradient of 7.7 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 70 RPM (RPM1). At this time, the control unit 200 controls the driving unit 290 to detect the eccentricity of the drum 16 rotating at a constant speed again.

On the other hand, in the third acceleration process (b2), if the amount of eccentricity according to the amount of laundry detected by the eccentricity detection unit 240 is less than or equal to the reference eccentricity, the acceleration permissible condition is satisfied, so that the third dehydration maintenance process (b3) is performed. The driving unit 290 is controlled.

The third dehydration maintenance process (b3) is performed from the sixth time point t6 to the seventh time point t7. In the third dehydration maintenance process (b3), the controller 200 controls the driving unit 290 to rotate the drum 16 at a constant speed at a predetermined rotation speed RPM2 of 130 to 150 RPM to control the inside of the drum 16 . This is the step of removing moisture contained in the laundry of

In addition, in the third spin-drying maintenance process (b3), the eccentricity detection unit 240 detects the eccentricity of the drum 60 rotating at a constant speed at a predetermined rotational speed (RPM2). At this time, if the amount of eccentricity detected by the eccentricity detection unit 240 is greater than or equal to the reference eccentricity, the controller 200 lowers the rotational speed of the drum 60 and then the driving unit 290 to stop the rotation of the drum 60 . ) to control Also, the control unit 200 controls the driving unit 290 to perform the first cloth dispersion process (a) without accelerating the drum 16 . At this time, the control unit 200 detects the laundry weight and cloth again, and then accelerates and rotates the drum 16 with an acceleration of the drum according to the sensed cloth weight and cloth.

The control unit 200 gradually accelerates the drum 16 to a predetermined rotational speed RPM1 with a drum acceleration determined according to the amount and the cloth detected by the cloth weight sensing unit 220 and the cloth detecting unit 220 in the cloth distribution table. and repeat the annealing process (a2).

On the other hand, in the third dehydration maintenance process (b3), if the eccentricity according to the amount of laundry detected by the eccentricity detection unit 240 is less than or equal to the reference eccentricity, the acceleration permissible condition is satisfied, so that the second acceleration process (b4) is performed. The driving unit 290 is controlled.

Meanwhile, the second acceleration process b2 is performed from the seventh time point t7 to the eighth time point t8. In the second acceleration process (b2), the control unit 200 controls the driving unit 290 so that the drum 16 is accelerated to a predetermined rotation speed (RPM3) of 130RPM to 150RPM. Also, while the drum 16 is being accelerated, the eccentricity detecting unit 240 detects the eccentricity of the rotating drum 16 .

At this time, if the amount of eccentricity detected by the eccentricity detection unit 240 is greater than or equal to the reference eccentricity, the controller 200 lowers the rotational speed of the drum 60 and then the driving unit 290 to stop the rotation of the drum 60 . ) to control In addition, the control unit 200 controls the driving unit 290 to perform the second cloth dispersion process (a) without accelerating the drum 16 . At this time, the control unit 200 detects the laundry weight and cloth again, and then accelerates and rotates the drum 16 with an acceleration of the drum according to the sensed cloth weight and cloth.

The control unit 200 gradually accelerates the drum 16 to a predetermined rotational speed RPM1 with a drum acceleration determined according to the amount and the cloth detected by the cloth weight sensing unit 220 and the cloth detecting unit 220 in the cloth distribution table. and repeat the annealing process (a2).

For example, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class 1 as the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration slope of 14.0 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a predetermined rotation speed of 65 RPM (RPM1).

In addition, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class2 as the second state, the control unit 200 performs the unwinding process (a2) In order to accelerate to an acceleration slope of 7.7 RPM / S, the drum 16 controls the driving unit 290 to start a constant speed rotation at a rotation speed of 68 RPM (RPM1).

Also, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class 3 as the third state, the control unit 200 performs the unwinding process (a2) In order to accelerate with an acceleration gradient of 7.7 RPM/S, the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 68 RPM (RPM1).

Also, in the sensing process (a1), when the amount of fabric detected by the laundry amount sensing unit 220 exceeds the third reference amount of LEVEL7 and the fabric is class 1 in the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration gradient of 7.7 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 70 RPM (RPM1).

In addition, in the sensing process (a1), when the amount of fabric detected by the laundry amount sensing unit 220 exceeds the third reference amount of LEVEL8 and the fabric is class 1 in the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration gradient of 7.7 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 70 RPM (RPM1). At this time, the control unit 200 controls the driving unit 290 to detect the eccentricity of the drum 16 rotating at a constant speed again.

On the other hand, in the second acceleration process (b4), if the eccentricity according to the amount of laundry sensed by the eccentricity detection unit 240 is less than or equal to the reference eccentricity, the acceleration permissible condition is satisfied, so that the second dehydration maintenance process (b5) is performed. The driving unit 290 is controlled.

The second dehydration maintenance process b5 is performed from the eighth time point t8 to the ninth time point t9. In the second dehydration maintenance process (b5), the control unit 200 controls the driving unit 290 so that the drum 60 rotates at a predetermined rotation speed RPM3 to remove moisture contained in the laundry inside the drum 60. is a step In the second dehydration maintenance process (b5), the eccentricity detecting unit 240 detects the eccentricity of the drum 60 rotating at a constant speed at a predetermined rotational speed (RPM3). The amount of eccentricity of the drum 60 sensed by the eccentricity detection unit 240 is transmitted to the control unit 200 . The control unit 200 determines whether to accelerate the drum 60 using the eccentricity of the drum 60 received from the eccentricity detection unit 240 .

At this time, if the amount of eccentricity detected by the eccentricity detection unit 240 is greater than or equal to the reference eccentricity, the controller 200 lowers the rotational speed of the drum 60 and then the driving unit 290 to stop the rotation of the drum 60 . ) to control In addition, the control unit 200 controls the driving unit 290 to perform the second cloth dispersion process (a) without accelerating the drum 16 . At this time, the control unit 200 detects the laundry weight and cloth again, and then accelerates and rotates the drum 16 with an acceleration of the drum according to the sensed cloth weight and cloth.

The control unit 200 gradually accelerates the drum 16 to a predetermined rotational speed RPM1 with a drum acceleration determined according to the amount and the cloth detected by the cloth weight sensing unit 220 and the cloth detecting unit 220 in the cloth distribution table. and repeat the annealing process (a2).

On the other hand, in the second dehydration maintenance process (b5), the controller 200 performs the first acceleration process (b6) because the acceleration permissible condition is satisfied if the amount of eccentricity according to the amount of laundry detected by the eccentricity detection unit 240 is less than or equal to the reference eccentricity. The driving unit 290 is controlled.

The first acceleration process b6 is performed from the ninth time point t9 to the tenth time point t10. In the first acceleration process (b6), the control unit 200 controls the driving unit 290 so that the drum 60 is accelerated to a predetermined rotation speed of approximately 350 to 400 RPM (RPM3). In addition, while the drum 60 is accelerated, the eccentricity detection unit 240 detects the eccentricity of the rotating drum 60 .

At this time, if the amount of eccentricity detected by the eccentricity detection unit 240 is greater than or equal to the reference eccentricity, the controller 200 lowers the rotational speed of the drum 60 and then the driving unit 290 to stop the rotation of the drum 60 . ) to control Also, the control unit 200 controls the driving unit 290 to perform the third cloth dispersion process (a) without accelerating the drum 16 . At this time, the control unit 200 detects the laundry weight and cloth again, and then controls the drum 16 to accelerate and rotate with an acceleration of the drum according to the sensed cloth weight and cloth.

The control unit 200 gradually accelerates the drum 16 to a predetermined rotational speed RPM1 with a drum acceleration determined according to the amount and the cloth detected by the cloth weight sensing unit 220 and the cloth detecting unit 220 in the cloth distribution table. and repeat the annealing process (a2).

For example, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class 1 as the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration slope of 14.0 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 68 RPM (RPM1).

In addition, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class2 as the second state, the control unit 200 performs the unwinding process (a2) In order to accelerate to an acceleration slope of 7.7 RPM / S, the drum 16 controls the driving unit 290 to start a constant speed rotation at a rotation speed of 68 RPM (RPM1).

Also, in the sensing process (a1), when the amount of fabric sensed by the laundry amount sensing unit 220 is LEVEL5 as the second reference amount and class 3 as the third state, the control unit 200 performs the unwinding process (a2) In order to accelerate with an acceleration gradient of 7.7 RPM/S, the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 68 RPM (RPM1).

Also, in the sensing process (a1), when the amount of fabric detected by the laundry amount sensing unit 220 exceeds the third reference amount of LEVEL7 and the fabric is class 1 in the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration gradient of 7.7 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 70 RPM (RPM1).

In addition, in the sensing process (a1), when the amount of fabric detected by the laundry amount sensing unit 220 exceeds the third reference amount of LEVEL8 and the fabric is class 1 in the first state, the control unit 200 performs the unwinding process (a2). In order to perform, the driving unit 290 is accelerated to an acceleration gradient of 7.7 RPM/S and the driving unit 290 is controlled so that the drum 16 starts to rotate at a constant speed at a rotation speed of 70 RPM (RPM1). At this time, the control unit 200 controls the driving unit 290 to detect the eccentricity of the drum 16 rotating at a constant speed again.

On the other hand, in the first acceleration process (b6), the control unit 200 is configured to perform the first dehydration maintenance process (b7) because the acceleration permissible condition is satisfied if the amount of eccentricity according to the amount of laundry detected by the eccentricity detection unit 240 is less than or equal to the reference eccentricity. The driving unit 290 is controlled.

The first dehydration maintenance process b7 is performed from the tenth time point t10 to the eleventh time point t11. The first dehydration maintenance process (b7) is a step in which the controller 200 controls the driving unit 290 so that the drum 60 rotates at the first dehydration maintenance speed to remove moisture contained in the laundry inside the drum 60. . In the first dehydration maintenance process (b7), the eccentricity detecting unit 240 detects the eccentricity of the drum 60 rotating at a constant speed at a predetermined rotational speed (RPM4). The amount of eccentricity of the drum 60 sensed by the eccentricity detection unit 240 is transmitted to the control unit 200 . The controller 200 determines whether to accelerate by using the eccentricity of the drum 60 received from the eccentricity detecting unit 240 .

At this time, if the amount of eccentricity detected by the eccentricity detection unit 240 is greater than or equal to the reference eccentricity, the controller 200 lowers the rotational speed of the drum 60 and then the driving unit 290 to stop the rotation of the drum 60 . ) to control In addition, the control unit 200 controls the driving unit 290 to perform the third cloth dispersion process (a) without accelerating the drum 16. At this time, the control unit 200 detects the laundry amount and cloth again, and then The drum 16 is controlled to accelerate and rotate with an acceleration according to the amount of cloth and cloth.

When the control unit 200 gradually accelerates the drum 16 to the stacking speed RPM1, with the drum acceleration determined according to the amount and the cloth detected by the cloth weight detection unit 220 and the cloth detection unit 220 in the cloth distribution table. and repeat the annealing process (a2).

On the other hand, in the first dehydration maintenance process (b7), if the amount of eccentricity according to the amount of laundry detected by the eccentricity detection unit 240 is less than or equal to the reference eccentricity, the control unit 200 rotates the drum 16 at a constant speed at the rotational speed (RPM3) to perform dehydration. carry out

In addition, after the first dehydration maintenance process (b9), the first deceleration process (b10) is performed. The first deceleration process b10 is performed from a thirteenth time point t13 to a fourteenth time point t14. The first deceleration process (b10) is a process in which the control unit 200 reduces the rotational speed of the drum 60 to end the spin-drying process.

Although the embodiments have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the embodiments pertain can understand that the embodiments may be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: washing machine
10: cabinet
11: Laundry slot
20: door
30: tub
31: water supply valve
32: water hose
33: detergent supply device
34: water pipe
35: drain pump
36: second drain pipe
37: first drain pipe
40: motor
50: axis of rotation
60: drum
70: control panel
200: control unit
210: current sensing unit
220: laundry amount detection unit
230: follicle detection unit
240: eccentricity detection unit
250: vibration amount detection unit
260: memory
270: display
280: communication department
290: drive unit

Claims (20)

As a control method of a washing machine including a drum,
detecting the amount of laundry and cloth in the drum, and dispersing the laundry in the drum at a rotation speed corresponding to the sensed weight and cloth; and
a step of dehydrating laundry according to an eccentricity of the drum measured in each of the plurality of rotation steps, including a plurality of rotation steps in which the drum rotates
including,
The step of dehydrating the laundry,
dehydrating the laundry by accelerated rotation of the drum when the eccentricity is less than or equal to a reference eccentricity;
and stopping rotation of the drum when the eccentricity exceeds a reference eccentricity. According to claim 1,
The rotational speed includes a first constant velocity and a first acceleration,
The step of dispersing the laundry,
The drum is accelerated and rotated according to a first acceleration corresponding to the sensed laundry amount and cloth quality, and when the rotational speed of the drum reaches the first constant speed, the drum is rotated at the first constant speed to disperse the laundry comprising the steps of
The step of dehydrating the laundry,
When the amount of eccentricity exceeds a reference amount of eccentricity, further comprising the step of measuring the eccentricity of the drum by accelerating the rotation of the stopped drum according to the first acceleration,
The inclination of the first acceleration and the first constant velocity are changed according to the sensed laundry amount and cloth quality. 3. The method of claim 2,
The plurality of rotating steps include a first rotating stage, a second rotating stage, and a third rotating stage,
The step of dehydrating the laundry,
detecting the eccentricity by rotating the drum at a constant speed at a second constant speed in the first rotating step;
performing the second rotation step by accelerated rotation of the drum according to the first acceleration when the sensed eccentricity is less than or equal to a reference eccentricity; and
When the sensed eccentricity exceeds a reference eccentricity, including the step of stopping the rotation of the drum,
The second constant speed is faster than the first constant speed, the second rotating step is performed after the first rotating step, and the third rotating step is performed after the second rotating step. 4. The method of claim 3,
The step of dehydrating the laundry,
detecting the eccentricity by rotating the drum at a constant speed at a third constant speed in the second rotating step;
performing the third rotation step by accelerated rotation of the drum according to the first acceleration when the sensed eccentricity is less than or equal to a reference eccentricity; and
When the sensed eccentricity exceeds a reference eccentricity, including the step of stopping the rotation of the drum,
The third constant speed is faster than the second constant speed, the control method of the washing machine. 3. The method of claim 2,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The step of dispersing the laundry,
When the detected amount of cloth is less than or equal to the first reference amount and the detected cloth is in the first state,
and dispersing the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality,
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities. 3. The method of claim 2,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The step of dispersing the laundry,
When the detected cloth amount is greater than the first reference amount and less than or equal to the second reference amount, and the detected cloth amount is in the first state,
and dispersing the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality,
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities. 3. The method of claim 2,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The step of dispersing the laundry,
When the amount of cloth is greater than the first reference amount and less than or equal to the second reference amount, and the cloth is in the second state,
and dispersing the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality,
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities. 3. The method of claim 2,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The step of dispersing the laundry,
When the cloth amount is greater than the first reference amount and less than or equal to the second reference amount, and the cloth is in a third state,
and dispersing the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality,
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities. 3. The method of claim 2,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The step of dispersing the laundry,
When the laundry amount is the third reference amount,
and dispersing the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality,
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities. 3. The method of claim 2,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The step of dispersing the laundry,
When the amount of cloth exceeds the third reference amount, and the cloth is in the first state,
and dispersing the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality,
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities. a laundry weight sensing unit for detecting the amount of laundry in the drum;
a cloth detecting unit for detecting cloth in the drum;
a driving unit for dispersing the laundry inside the drum at a rotation speed corresponding to the sensed laundry amount and cloth quality, and rotating the drum to spin the laundry to spin the laundry;
A control unit for controlling the dewatering process according to the amount of eccentricity of the drum measured while the drum rotates at accelerated speed,
The control unit is
When the eccentricity is less than the reference eccentricity, the drum is rotated acceleratingly to spin the laundry,
When the eccentricity exceeds a reference eccentricity, the washing machine stops the rotation of the drum. 12. The method of claim 11,
The rotational speed includes a first constant velocity and a first acceleration,
The control unit is
The drum is accelerated and rotated according to a first acceleration corresponding to the sensed laundry amount and cloth quality, and when the rotational speed of the drum reaches the first constant speed, the drum is rotated at the first constant speed to disperse the laundry control to do
When the amount of eccentricity exceeds the reference amount of eccentricity, the rotating drum is accelerated according to the first acceleration to measure the eccentricity of the drum,
The inclination of the first acceleration and the first constant velocity are changed according to the sensed laundry amount and cloth quality. 13. The method of claim 12,
The dehydration process includes a plurality of rotation processes,
The plurality of rotation processes include a first rotation process, a second rotation process, and a third rotation process,
The eccentricity detection unit,
In the first rotation process, the drum is rotated at a constant speed at the second constant speed to detect the amount of eccentricity,
The control unit is
When the sensed eccentricity is less than or equal to the reference eccentricity, the drum is accelerated to rotate according to the first acceleration to perform the second rotation process,
When the eccentricity exceeds the reference eccentricity, control to stop the rotation of the drum,
The second constant speed is faster than the first constant speed, the second rotation process is performed after the first rotation process, and the third rotation process is performed after the second rotation process. 14. The method of claim 13,
The eccentricity detection unit,
In the second rotation process, the drum is rotated at a constant speed at a third constant speed to sense the amount of eccentricity,
The control unit is
When the sensed amount of eccentricity is less than or equal to the reference amount of eccentricity, the drum is accelerated and rotated according to the first acceleration to perform the third rotation process,
When the eccentricity exceeds the reference eccentricity, control to stop the rotation of the drum,
The third constant speed is faster than the second constant speed, the washing machine. 13. The method of claim 12,
The laundry amount includes a first reference amount, a second reference amount, and a third reference amount,
The fossa corresponds to any one of a first state, a second state, and a third state,
The control unit is
When the detected amount of cloth is less than or equal to the first reference amount and the detected cloth is in the first state,
control to disperse the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality;
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities, the washing machine. 13. The method of claim 12,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
When the detected amount of cloth is greater than the first reference amount and less than or equal to the second reference amount, and the detected cloth is in the first state,
The control unit is
control to disperse the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality;
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities, the washing machine. 13. The method of claim 12,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The control unit is
When the amount of cloth is greater than the first reference amount and less than or equal to the second reference amount, and the cloth is in the second state,
control to disperse the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality;
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities, the washing machine. 13. The method of claim 12,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The control unit is
When the cloth amount is greater than the first reference amount and less than or equal to the second reference amount, and the cloth is in a third state,
control to disperse the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality;
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities, the washing machine. 13. The method of claim 12,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The control unit is
When the laundry amount is the third reference amount,
control to disperse the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry weight and cloth quality;
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities. 13. The method of claim 12,
The cloth weight includes a first reference amount, a second reference amount, and a third reference amount, wherein the cloth corresponds to any one of the first state, the second state, and the third state,
The control unit is
When the amount of cloth exceeds the third reference amount, and the cloth is in the first state,
controlling the driving unit to distribute the laundry by accelerating rotation with the first acceleration corresponding to the sensed laundry amount and cloth quality;
the second reference amount is greater than the first reference amount, and the third reference amount is greater than the second reference amount;
The first state is a combination of a plurality of the laundry having the same cloth,
The second state is a combination of the laundry having the same cloth and the laundry having different cloths,
The third state is a combination of a plurality of the laundry having different fabric qualities.

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