KR101340530B1 - Washing machine and method for controlling washing machine - Google Patents

Abstract

The present invention relates to a laundry treatment machine and a method for controlling the laundry treatment machine. In the laundry treatment apparatus and the method for controlling the laundry treatment apparatus according to the present invention, the drum is operated at a first speed so that a part of the cloth flows in the drum, and the other part of the cloth is attached to the drum. The internal quantity of the gas is sensed, and the operation command for driving the drum after the first speed operation is varied based on the detected quantity of water. Thereby, the stability and four balancing of the laundry processing apparatus at the time of a dehydration stroke can be ensured.

Description

Washing machine and method for controlling washing machine {Washing machine and method for controlling washing machine}

The present invention relates to a laundry treatment apparatus and a method for controlling the laundry treatment apparatus. More particularly, the present invention relates to a laundry treatment apparatus and a laundry treatment apparatus for improving the stability and four balancing of the laundry treatment apparatus during a dehydration stroke.

In general, the drum laundry treatment machine of the laundry treatment machine washes by using the friction force of the rotating drum and the laundry by receiving the driving force of the motor in the state in which detergent, washing water and laundry are put in the drum, the damage of the laundry is almost The laundry is not entangled with each other, and knocking and rubbing can have a washing effect.

After the washing and rinsing stroke is completed, the dehydration stroke is carried out. In order for the dehydration stroke to proceed, the fabric must be effectively dispersed. Various methods are used for this. For example, the method which judges the amount of eccentricity was used in the state which stuck the cloth to the drum. However, this method has a disadvantage in that the baling time of the fabric is long, and the state of the fabric is already determined by detecting the amount of eccentricity while the fabric is already attached to the drum. In addition, when the fabric is unbalanced in the state where the cloth is stuck to the drum, the stability of the washing machine becomes a problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide a laundry treatment apparatus and a method for controlling a laundry treatment apparatus having improved stability and four balancing of the laundry treatment apparatus during a dehydration stroke.

The control method of the laundry treatment machine according to the present invention for achieving the above object is a control method of a laundry treatment machine including a drum in which the cloth is inserted and rotated, a part of the cloth flows in the drum, the other part of the cloth D) driving the drum at a first speed so as to be attached to the drum; detecting a quantity of the drum in the first speed operation; and based on the detected quantity, an operation command for driving the drum after the first speed driving. The step of varying.

Laundry processing apparatus according to the present invention for achieving the above object, the drum is inserted into the rotating drum, the quantity detection unit for detecting the quantity in the drum, a portion of the fabric flows in the drum, the other part of the fabric And a controller configured to control the drum to be driven at the first speed so as to be attached to the drum, and to vary an operation command for driving the drum after the first speed drive based on the detected quantity during the first speed drive.

According to the present invention, the laundry treatment apparatus by varying the driving commands after the first speed, for example, the rising slope of each driving speed, the eccentricity reference value at each driving speed, according to the detected quantity during the first speed driving. It is possible to secure the stability and balancing of guns.

On the other hand, the drum is operated at a first speed at which a part of the fabric flows, not at the speed at which all of the conventional artillery flows, and after adjusting the state of the artillery to some extent, the vehicle is allowed to enter at the second speed so that the artillery can be accurately and quickly. It can be distributed.

1 is a perspective view showing a laundry treatment apparatus according to an embodiment of the present invention.
2 is an internal block diagram of the laundry machine of FIG.
3 is a graph showing an example of the relationship between the rotational speed of the drum and the time in the laundry treatment machine of FIG.
4 is a view showing the state of the fabric in the drum according to the first speed and the second speed of FIG.
5 is a flowchart illustrating a control method of a laundry treatment machine according to an embodiment of the present invention.
6 is a flowchart illustrating a control method of a laundry treatment machine according to an embodiment of the present invention.
7 is a flowchart illustrating a control method of a laundry treatment machine according to an embodiment of the present invention.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a perspective view illustrating a laundry processing apparatus according to an embodiment of the present invention.

Referring to the drawings, the laundry treatment machine 100 includes a cabinet 110 forming the exterior of the laundry treatment machine 100, and a tub disposed inside the cabinet 110 and supported by the cabinet 110. 120, a drum 122 disposed inside the tub 120 and washing the cloth, a motor 130 driving the drum 122, and disposed outside the cabinet body 111 to be washed inside the cabinet 110. It includes a washing water supply device (not shown) for supplying water, and a drainage device (not shown) formed under the tub 120 to discharge the washing water to the outside.

The drum 122 is provided with a plurality of through holes 122A through which wash water is passed. The drum 122 is lifted up to a certain height during rotation of the drum 122, (124) may be disposed.

The cabinet 110 includes a cabinet body 111 and a cabinet cover 112 disposed on the front surface of the cabinet body 111 and coupled to the cabinet body 111. The cabinet 110 is disposed above the cabinet cover 112, And a top plate 116 disposed on the control panel 115 and coupled to the cabinet main body 111. The cabinet main body 111 includes a top plate 116,

The cabinet cover 112 includes a catch and release hole 114 formed so as to be able to move in and out of the can and a door 113 arranged to be rotatable in the left and right direction so that the catch and release hole 114 can be opened and closed.

The control panel 115 is provided with operation keys 117 for operating the laundry processing apparatus 100 and a display device (not shown) disposed on one side of the operation keys 117 and for displaying the operating state of the laundry processing apparatus 100 118).

The operation keys 117 and the display device 118 in the control panel 115 are electrically connected to a control unit (not shown), and a control unit (not shown) electrically controls each component of the laundry processing apparatus 100 do. The operation of the control unit (not shown) will be described later.

2 is an internal block diagram of the laundry machine of FIG.

Referring to the drawings, first, the control unit 210 receives an operation signal from the operation key 117 to operate. Accordingly, main washing, rinsing, and dehydration strokes can be performed. For main washing, rinsing, and dehydration strokes, the controller 210 controls the motor 130. Although not shown in the figure for motor control, it is possible to be controlled by an inverter (not shown). For example, when the controller 210 outputs a PWM switching control signal to an inverter (not shown), the inverter (not shown) may perform a high speed switching operation to supply AC power having a predetermined frequency to the motor 130.

The controller 210 may display an operation state of the laundry processing apparatus 100 through the display device 118. For example, an operation state such as main washing, rinsing, and dehydration stroke can be displayed.

The motor 130 operates the drum 122. The drum 122 is disposed inside the tub 120 as shown in FIG. 1, and a cloth for washing is inserted and operated by the rotation of the motor 130.

The eccentricity detecting unit 220 detects an eccentric amount of the drum 122, that is, an unbalance (UB) of the drum 122. The eccentricity detection may be performed based on the rotation speed change amount of the drum 122, that is, the rotation speed change amount of the motor 130. To this end, a speed detector (not shown) for detecting the rotational speed of the motor 130 may be provided separately. Meanwhile, the rotation speed of the motor 130 may be calculated using the output current value flowing through the motor 130, thereby detecting the amount of eccentricity. To this end, the motor 130 may be provided with a current sensing unit (not shown), for example, an encoder.

Meanwhile, although the eccentricity sensing unit 220 is provided separately from the control unit 210 in the drawing, the present invention is not limited thereto, and the eccentricity sensing unit 220 may be provided in the control unit 210. In this case, the rotation speed or the output current value of the motor 130 respectively detected by the speed detector (not shown) or the current detector (not shown) may be input into the controller 210.

On the other hand, the quantity detection unit 230 detects the quantity in the drum, and inputs it to the control unit 210. The quantity detection may be sensed in any case of stopping or driving the drum based on the sensing of the weight of the gun in the drum 122 and the rotation speed of the drum 122.

3 is a graph showing an example of the relationship between the rotational speed and time of the drum in the laundry treatment machine of FIG. 1, and FIG. 4 is a view showing the state of the fabric in the drum according to the first and second speeds of FIG. .

Referring to the drawings, in connection with the dehydration stroke of the laundry treatment machine according to the embodiment of the present invention, first, the drum 122 is raised at the first speed v1 during the first period T1. Here, the first speed v1 is the speed at which a portion 410 of the fabric flows in the drum and the other portion 420 of the fabric is attached in the drum, as shown in FIG. 4 (a). For example, 20-30% of the fabric may flow in a drum, and 70-80% of the fabric may be at a rate that adheres to the drum.

Next, the drum 122 is operated at the first speed v1 during the second period T2. During operation of the first speed v1, the quantity detector 230 detects a quantity of quantity. The controller 210 controls to vary the set values after the first speed v1 according to the detected quantity of water. These set values are operation commands for determining the operation state of the drum 122, and include the rising slope S2 of the second speed, which is the speed at which the cloth is attached, the eccentricity reference value at the second speed v2, and the water draining process (simple dehydration). ), The rising slope S3 of the third speed below the resonance speed at which the resonance speed is performed, the eccentricity reference value at the third speed v3, the rising slope S4 of the maximum speed of the drum where the dehydration is performed, and the maximum speed vmax. And the like. The operation command after the first speed v1 is changed according to the detected quantity, which will be described later.

When the amount of eccentricity sensed by the eccentricity sensing unit 220 is less than or equal to the first predetermined value, that is, when stabilized, the drum 122 is raised at the second speed v2. Here, the second speed v2 is a speed at which the entirety of the fabric 430 is attached to the drum 122, as shown in FIG. 4 (b).

As described above, the second speed increase inclination S2 during the third period T3 may be varied according to the detected quantity during the operation of the first speed v1. For example, as the detected quantity increases, the second speed gradient S2 may be gentle, that is, smaller, in order to stabilize the laundry treatment apparatus 100 and secure four balancing. Of course, in addition to the detected amount of gun, the second speed slope S2 may be varied according to the type of gun and the state of the gun.

Next, during the fourth period T4, the drum 122 is operated at the second speed v2. When the amount of eccentricity is sensed during the operation of the second speed v2 and the amount of the eccentricity is less than or equal to the second predetermined value, the driving speed of the drum 122 may be increased to the third speed V3 or the maximum speed vmax. In this case, the second predetermined value may vary according to the amount of detected quantity during the operation of the first speed v1. For example, as the detected quantity increases, the second predetermined value may be decreased to stabilize the laundry treatment apparatus 100 and to ensure four balancing. Of course, in addition to the detected amount of gun, the second predetermined value may be varied according to the type of the gun and the state of the gun.

As described above, the third speed increase slope S3 during the fifth period T5 may be varied according to the detected quantity during the driving of the first speed v1. For example, as the detected quantity increases, the third speed gradient S3 may be gentle, that is, smaller, in order to stabilize the laundry treatment apparatus 100 and secure four balancing. Of course, in addition to the detected amount of gun, the third speed slope S3 may be varied according to the type of the gun and the state of the gun.

Next, during the sixth period T6, the drum 122 is operated at the third speed v3. The third speed v3 is a speed for performing the water draining process, and may be preferably set below the resonance speed.

The amount of eccentricity is sensed when the third speed V3 is driven, and the third predetermined value, which is the reference value of the eccentricity, may vary according to the detected amount when the first speed v1 is driven. For example, as the detected quantity increases, the third predetermined value may be decreased to stabilize the laundry treatment apparatus 100 and to ensure four balancing. Of course, in addition to the detected amount of gun, the third predetermined value may be varied according to the type of gun and the state of the gun.

Next, the speed is lowered at the second speed v2 in the seventh period T7, and the vehicle is driven at the second speed v2 during the eighth period T8. As described above, after the draining process, the battery is lowered at the second speed v2 to be attached to the drum 122. The fifth to eighth periods T5 to T8, that is, the draining process, may be performed at least once.

Next, when the amount of eccentricity at the time of the second speed operation is equal to or less than the second predetermined value, the speed increases to the maximum speed vmax during the ninth period T9. At this time, the maximum speed increase slope S4 during the ninth period T9 may be varied according to the amount of detected quantity during the operation of the first speed v1 as described above. For example, as the detected quantity increases, the maximum speed gradient S4 may be gentle, that is, smaller, in order to stabilize the laundry treatment apparatus 100 and secure four balancing. Of course, in addition to the detected amount of gun, the maximum speed gradient S4 may be varied according to the type of the gun and the state of the gun.

Next, during the tenth period T10, the drum 122 is operated at the maximum speed vmax. As a process for this dehydration, after the four balancing in the drum 122 is completed, the dehydration process is started in earnest. In this case, the maximum speed vmax may vary according to the amount of detected quantity during the operation of the first speed v1. For example, as the detected quantity increases, the maximum speed vmax may be decreased to stabilize the laundry treatment apparatus 100 and to ensure four balancing. Of course, in addition to the detected amount of gun, the maximum speed vmax may vary depending on the type of gun and the state of the gun.

In this way, by varying the operation command after the first speed v1 according to the quantity detected at the first speed v1, the stability of the laundry treatment apparatus 100 and the balancing of the cloths can be secured during the dehydration stroke. Will be.

On the other hand, the drum 122 is operated at a first speed v1 at which a part of the cloth flows, not a speed at which the conventional artillery flows in full, and after adjusting the balancing state of the cloth to some extent, the second speed v2 is entered. By doing so, it is possible to disperse the cloth accurately and quickly.

Meanwhile, the above-described first speed v1 may be about 60 rpm, the second speed v2 may be about 108 rpm, the third speed v3 may be 300 rpm or more, and the maximum speed vmax may be 500 rpm or more.

5 is a flowchart illustrating a control method of a laundry treatment machine according to an embodiment of the present invention.

Referring to the drawings, the controller 210 controls the drum 122 to operate at the first speed v1 (S510). As shown in FIG. 3, the drum 122 in the stationary state is raised to the first speed v1 and then operated at the first speed v1. The first speed v1 is the speed at which a portion of the fabric flows in the drum 122 and the other portion of the fabric is attached within the drum 122. For example, 20-30% of the fabric may flow in a drum, and 70-80% of the fabric may be at a rate that adheres to the drum.

Next, the control unit 210 detects the amount of capacity during the driving of the first speed v1 (S515). The quantity detection is performed through the quantity detector 230.

Next, it is determined whether the amount of eccentricity in the first speed operation is equal to or less than the first predetermined value (S520). The controller 210 determines whether the eccentricity detected by the eccentricity sensing unit 220 is less than or equal to the first predetermined value.

When the amount of eccentricity during the first speed v1 operation is equal to or less than the first predetermined value, the controller 210 drives the drum at the second speed v2 (S525). Here, the second speed v2 is a speed at which the entirety of the fabric 430 is attached to the drum 122, as shown in FIG. 4 (b).

On the other hand, when the eccentricity of the second speed is equal to or less than the second predetermined value, which is the reference value, it is possible to increase to the third speed v3 or the maximum speed vmax. In this case, the second predetermined value may vary according to the amount of detected quantity at the first speed v1. For example, the larger the detected quantity. The second predetermined value can be made smaller. Accordingly, stabilization and four balancing of the laundry treatment apparatus 100 may be secured.

6 is a flowchart illustrating a control method of a laundry treatment machine according to an embodiment of the present invention.

Referring to the drawings, the control method of FIG. 6 is almost similar to the control method of FIG. In the control method of FIG. 5, the second predetermined value, which is an eccentricity reference value at the second speed, is varied according to the amount of detected quantity at the first speed v1, but the control method of FIG. 6 includes a second speed increase slope S2. The difference is that it varies).

That is, the first speed driving (S610), the quantity detection (S615) during the first speed driving, and the eccentricity determination (S620) during the first speed driving are the same as illustrated in FIG. 5.

Next, when the amount of eccentricity during the first speed operation is equal to or less than the first predetermined value, the controller 210 raises the drum 122 at the second speed (S625). In this case, the second speed increase slope S2 may vary according to the amount of detected quantity at the first speed v1. For example, the larger the detected quantity. The second speed rising slope S2 may be small. Accordingly, stabilization and four balancing of the laundry treatment apparatus 100 may be secured.

7 is a flowchart illustrating a control method of a laundry treatment machine according to an embodiment of the present invention.

Referring to the drawings, the control method of FIG. 7 is similar to the control method of FIG. The first speed operation S710, the quantity detection during the first speed operation S715, the eccentricity determination during the first speed operation S720, and the second speed operation S725 are almost similar to those of FIG. 5. Hereinafter, the steps after the second speed operation S725 will be described.

The controller 210 determines whether the amount of eccentricity during the second speed driving is less than or equal to the second predetermined value (S730). If it is less than or equal to the second predetermined value, the controller 210 raises the drum 122 at the third speed v3 and operates at the third speed v3 (S735). The third speed v3 may be a speed below a resonance speed at which the water draining process (simple dehydration) is performed. This draining process may be performed at least once, for example three or more times.

Although not shown in the drawing, a third predetermined value, which is an eccentricity reference value at the time of operating the third speed increase slope S3 or the third speed v3, may vary according to the amount detected at the first speed v1. For example, the larger the detected quantity. The third speed increase slope S3 or the third predetermined value may become small.

Next, the controller 210 drives again at the second speed v2 (S740), and again determines whether the eccentricity is less than or equal to the second predetermined value when the second speed v2 is driven (S745). If it is less than or equal to the second predetermined value, the controller 210 raises the drum 122 at the maximum speed vmax and operates at the maximum speed vmax (S750). This maximum speed vmax is the speed at which this dehydration process is performed. This maximum speed vmax may vary depending on the amount of volume detected at the first speed v1. For example, the larger the detected quantity. The maximum speed vmax can be made small.

On the other hand, although not shown in the figure, the maximum speed rising slope S4 may also be varied. For example, the larger the detected quantity. The maximum speed rising slope S4 may be small.

As such, by varying various operation command values after the first speed v3 based on the quantity detected during the operation of the first speed v3, stabilization and four balancing of the laundry treatment apparatus 100 may be secured. have.

Meanwhile, the above-described first speed v1 may be about 60 rpm, the second speed v2 may be about 108 rpm, the third speed v3 may be 300 rpm or more, and the maximum speed vmax may be 500 rpm or more.

On the other hand, the control method of the laundry treatment machine of the present invention can be implemented as code that can be read by the processor on a processor-readable recording medium provided in the laundry treatment machine. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and also include a carrier wave such as transmission through the Internet. In addition, the processor readable recording medium may be distributed over networked computer systems so that code readable by the processor in a distributed manner can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

100: laundry processing equipment 117: operation keys
118: display device 122: drum
130: motor 210: control unit
220: eccentricity detection unit 230: quantity detection unit

Claims (16)

In the control method of the laundry treatment machine including a drum is inserted and rotated,
Rotating the drum at a first speed for a predetermined time such that a portion of the fabric flows in the drum and another portion of the fabric is attached to the drum;
Sensing the amount of capacity in the drum while the drum is rotating at the first speed;
Detecting an eccentricity of the drum while the drum is rotating at the first speed;
If the detected amount of eccentricity is less than or equal to a first predetermined value, accelerating the rotational speed of the drum at a second speed at which all of the fabric is attached to the drum;
The drum is rotated for a predetermined time at the second speed;
Sensing an eccentricity of the drum while the drum is rotating at the second speed;
Accelerating the rotational speed of the drum to a third speed when the amount of eccentricity detected while the drum is rotating at the second speed is less than a second predetermined value;
Rotating the drum at the third speed for a predetermined time;
Slowing the rotational speed of the drum from the third speed to the second speed;
Rotating the drum again for the predetermined time at the second speed;
Sensing an eccentricity of the drum while the drum is being rotated again at the second speed; And
Accelerating the rotational speed of the drum from the second speed to a maximum speed greater than the third speed when the amount of eccentricity sensed while the drum is being rotated again at the second speed is less than or equal to the second predetermined value; ,
The second speed increase slope, the rotational speed of the drum is increased from the first speed to the second speed,
The control method of the laundry treatment machine, characterized in that variable according to the detected amount. The method of claim 1,
The second speed rising slope is,
The control method of the laundry treatment machine, characterized in that the smaller the detected amount. The method of claim 1,
The third speed increase slope, the rotational speed of the drum is increased from the second speed to the third speed,
The control method of the laundry treatment machine, characterized in that variable according to the detected amount. The method of claim 3,
The third speed increase slope,
The control method of the laundry treatment machine, characterized in that the smaller the detected amount. The method of claim 1,
The maximum speed increase slope at which the rotational speed of the drum is increased from the third speed to the maximum speed is
The control method of the laundry treatment machine, characterized in that variable according to the detected amount. The method of claim 5,
The maximum speed rising slope,
The control method of the laundry treatment machine, characterized in that the smaller the detected amount. A drum inserted and rotated;
A motor for rotating the drum;
A controller for controlling the motor;
An eccentric amount detecting unit for detecting an eccentric amount while the drum is rotating; And
And a quantity detecting unit for detecting a quantity during the drum rotation.
The control unit,
A portion of the fabric flows in the drum, the other portion of the fabric controls the motor such that the drum is rotated for a predetermined time at a first speed so that the drum is attached within the drum, and the drum rotates at the first speed If the amount of eccentricity detected by the eccentricity sensing unit is less than a first predetermined value, the rotational speed of the drum is accelerated at a second speed at which the entirety of the fabric is attached to the drum, and then for a predetermined time at the second speed. The motor is controlled to rotate, and when the eccentricity sensed by the eccentricity sensing unit is less than a second predetermined value while the drum rotates at the second speed, the rotation speed of the drum is accelerated to a third speed, and then The motor is controlled to rotate at a third speed for a predetermined time, and after the rotation speed of the drum is decelerated from the third speed to the second speed, When the motor is controlled to be rotated again at a second speed for a predetermined time, and the eccentricity sensed by the eccentricity sensing unit while the drum is rotated again at the second speed is less than the second predetermined value, the rotation speed of the drum The motor is controlled so that the motor is accelerated from the second speed to a maximum speed greater than the third speed, and the second speed rising slope of which the rotational speed of the drum is increased from the first speed to the second speed is detected. Laundry treatment equipment, characterized in that the control to vary according to the quantity detected through the unit. The method of claim 7, wherein
The second speed rising slope is,
Laundry treatment device, characterized in that the smaller the amount detected through the quantity detection unit. The method of claim 7, wherein
The control unit,
Laundry processing apparatus, characterized in that for controlling the rotational speed of the drum is increased from the second speed to the third speed inclined in accordance with the amount detected by the quantity detection unit. 10. The method of claim 9,
The third speed increase slope,
Laundry treatment device, characterized in that the smaller the amount detected through the quantity detection unit. The method of claim 7, wherein
The control unit,
And a maximum speed increase slope at which the rotational speed of the drum is increased from the third speed to the maximum speed is varied according to the quantity detected by the quantity detection unit. 12. The method of claim 11,
The maximum speed rising slope,
Laundry treatment device, characterized in that the smaller the amount detected through the quantity detection unit. delete delete delete delete

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