KR20110022291A - Controlling method of washing machine - Google Patents

Abstract

PURPOSE: A washing machine controlling apparatus is provided to easily select the most suitable washing option by the material of laundry. CONSTITUTION: A user selects a driving course among a plurality of drive courses(S10). The user selects the washing time management option(S20). A control unit senses the laundry volume(S30). According to the selected course, the control unit performs washing in order to vary a flow motion of the laundry(S100). The control unit performs rinsing of laundry(S200). The controller performs dehydrating for the laundry(S300).

Description

Controlling Method of Washing Machine

The present invention relates to a control method of a laundry machine, and more particularly, to a method of controlling a laundry machine, which is easy to use and can satisfy various consumer demands by varying a drum driving motion.

In general, a washing machine is a device for removing dirt from laundry by the action of water and detergent.

The washing machine is largely divided into stirring, vortex and drum washing machines.

The stirring type washes by rotating the laundry rod rising to the left and right in the center of the washing tank, and the vortex type washes by using the friction force between the water flow and the laundry by rotating the disc-shaped rotary blade formed at the lower part of the washing tank to the left and right, and the drum type inside the drum. Add water, detergent and laundry to wash the drum by rotating it.

The drum washing machine is equipped with a tub in which washing water is accommodated in a cabinet forming an exterior, a drum in which laundry is accommodated, and a back of the tub is provided with a motor and a shaft for rotating the drum. .

The drum type laundry machine having the above-described configuration removes dirt contained in the laundry by the frictional force of the wash water stored in the tub and the laundry stored in the drum, and the chemical action of the detergent stored in the wash water.

Therefore, the combination of the rotational direction and the rotational speed of the drum is closely related to the washing performance of the washing machine.

On the other hand, since the drum is powered from the motor provided on the back of the tub, the combination of the rotational direction and the rotational speed of the drum designed to improve the washing performance of the washing apparatus must be considered the load on the motor.

In the case of a drum washing machine, washing is performed while the laundry inside the drum flows as the drum rotates. In general, laundry damage in a drum washing machine is known to be less than agitation or vortex type.

In the case of a conventional drum washing machine, laundry and rinsing were performed by a tumble drive in which laundry inside a drum was lifted and dropped. Therefore, damage of laundry of cotton or the like is not a big problem, but damage of laundry of delicate materials such as wool or synthetic fibers could not be overlooked. Of course, the conventional drum washing machine attempted to prevent the damage of the laundry of the delicate material by driving the drum by varying the actual operation rate (on time of the drum / off time of the drum) according to the material of the laundry.

For example, when washing laundry made of cotton, the driving time of the drum is made longer than the stop time, and when driving laundry of synthetic fiber material, the driving time of the drum is made shorter than when it is made of cotton.

However, despite these attempts, the laundry is likely to be damaged due to the tumble drive. When the operation rate is too low, the washing efficiency is significantly lowered.

Therefore, there is a need for a laundry apparatus and a control method thereof capable of preventing damage to laundry and increasing washing efficiency.

An object of the present invention is to provide a method of controlling a washing apparatus that can prevent washing damage and improve washing efficiency.

More specifically, an object of the present invention is to provide a washing apparatus and a control method thereof, by which a user can easily select a washing course capable of performing optimal washing according to a material of laundry.

In addition, an object of the present invention is to provide a control method of a laundry machine that is convenient to use by shortening the washing time by controlling the motion of the laundry flowing in the drum according to the course selected according to the material of the laundry.

It is an object of the present invention to provide a washing apparatus and a control method thereof which can increase the efficiency of the user's satisfaction by increasing the efficiency of the washing course as a whole through the optimum efficiency and the time required for each stage of the washing administration. .

According to an aspect of the present invention, there is provided a step of selecting a course to be driven among a plurality of driving courses by a user; driving a drum such that a motion (drum driving motion) in which laundry flows in the drum varies according to the selected course. Washing administration step in which the washing is performed; Rinsing administration step in which rinsing is performed; And it provides a control method of the laundry machine comprising a dehydration administration step in which dehydration is performed.

Here, the plurality of driving course is preferably provided according to the type of laundry. Therefore, the optimum washing effect and the laundry damage prevention effect can be expected depending on the material of the laundry.

The washing administration step may include a water supply step of dissolving the detergent in the wash water by supplying the wash water and the detergent to the tub or drum. And, it is preferable to drive the drum so that the drum driving motion in the water supply step is different according to the selected course.

Here, the drum driving motion is preferably a scrub motion, step motion or a combination motion of these orders according to the selected course.

The washing administration step preferably includes a sieve step for supplying the wash water and detergent solution to the laundry. The drum driving motion in the lamination step may include a rolling pattern. In addition, the coating step preferably includes a circulation step in which the washing water and detergent liquid in the tub is circulated to the laundry in the drum. The circulation step is more preferably performed when the drum drive motion is at least a filtration motion. The rolling motion may be performed after the filtration motion is performed in the cyclic step.

The washing administration step may include a main washing step of washing the laundry by driving the drum after the bagging step.

The washing administration step may include a heating step of raising the temperature of the wash water or the ambient temperature in the drum by driving a steam generator or a tub heater after the lapping step and before the main washing step.

The drum driving motion in the main washing step may include a tumbling motion, and the drum driving motion in the main washing step preferably drives the drum so that the drum driving motion varies according to the selected course.

The plurality of driving courses may include a driving course (cotton coruse, mix course and synthetic course) respectively provided for laundry laundry made of cotton material, synthetic fiber laundry, and laundry of the material.

Preferably, the drum driving motion in the washing stroke of the cotton course includes a rolling motion, and the drum driving motion in the washing administration step of the synthetic fiber course preferably includes a swing motion. In addition, the drum driving motion in the washing administration step of the mixing course preferably comprises a sequence motion of the rolling motion and swing motion.

The preset value is at least one of the cotton RPM, the synthetic fiber course, and the blending course at least one of drum RPM in dewatering stroke, running time, and running rate (on / off ratio of the motor driving the drum). It is desirable to be large.

The washing administration step includes a water supply step of dissolving the detergent in the wash water by supplying the wash water and detergent to a tub or drum, the drum driving motion in the water supply step is a scrub motion in the cotton course, the synthetic fiber course In the step motion and the mixed course, it is preferable that the scrub motion and the step motion are combined motions in sequence.

In addition, the drum driving in the rinsing stroke step is preferably performed in a tumbling motion at a level higher than that of the washing stroke regardless of the selected course.

According to the present invention, it is possible to provide a washing apparatus capable of preventing damage to laundry and improving washing efficiency.

More specifically, it is possible to provide a washing apparatus and a control method thereof in which a user can easily select a washing course capable of performing optimal washing according to the material of laundry.

In addition, by controlling the motion of the laundry flows in the drum according to the course selected according to the material of the laundry to reduce the washing time can provide a convenient washing apparatus and a control method thereof.

It is possible to provide a washing apparatus and a control method thereof which can increase the efficiency of the user's satisfaction by increasing the efficiency of the washing course as a whole through the optimum efficiency and the time required for each stage of the washing administration.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Unless otherwise defined, all terms in the specification are the same as the general meaning of the terms understood by those skilled in the art, and if the terms used herein conflict with the general meaning of the terms Is in accordance with the definitions used herein.

On the other hand, the configuration or control method of the device to be described below is not intended to limit the scope of the present invention, but to describe the embodiment of the present invention, the same reference numerals are used throughout the specification the same components Indicates.

1 is a perspective view of a washing machine that is the control object of the washing machine of the present invention.

The washing apparatus includes a cabinet 110 forming an exterior, a tub 120 provided inside the cabinet and supported by the cabinet, a drum 130 rotatably provided inside the tub, and laundry loaded therein. And a motor 140 for rotating the drum by applying torque to the drum, and a control panel 115 for allowing a user to select and execute a washing course.

The cabinet 110 includes a main body 111, a cover 112 provided on the front surface of the main body and coupled to each other, and a top plate 116 coupled to the upper portion of the main body. The cover 112 may include an opening 114 provided to allow access to and from the laundry, and a door 113 to selectively open and close the opening.

The drum 130 forms a space for washing laundry put into the drum 130. The drum 130 is rotated by receiving power from the motor 140. Since the drum 130 includes a plurality of through holes 131, the wash water stored in the tub 120 may be introduced into the drum 130 through the through holes 131, and the washing inside the drum may be performed. Water can flow out of the tub. Therefore, when the drum is rotated, the laundry put into the drum is removed from the dirt during the friction with the wash water stored in the tub.

The control panel 115 is not only a user can input the information related to the washing, but also configured to check the information related to the washing. That is, the configuration for the interface with the user.

Accordingly, the control panel 115 includes manipulation units 117 and 118 through which a user can input a control command, and a display unit 119 displaying control information according to the control command. And the control panel may include a control unit for controlling the driving of the washing machine including the operation of the motor in accordance with the control command.

According to the control method of the washing apparatus of the present invention, the drum can be driven in various forms. That is, drum driving is performed in various forms as well as general tumble driving and spin driving. The tumble drive is a drum drive motion that drops after the laundry is lifted during washing or rinsing of a general drum washing machine, and the spin drive is a drum drive motion in which laundry is continuously rotated while the laundry is stuck inside the drum.

Drum drive motion in the present invention refers to the motion of the laundry flow in the drum associated with this as well as the RPM of the drum rotation. Accordingly, the present invention provides a control method of a motor for generating drum rotation, in particular, rotation of the drum for driving the drum in various drum driving motions.

Hereinafter, various drum driving motions applicable to embodiments of the present invention will be described in detail.

Figure 2 is a view showing a variety of drum driving motion utilized in the control method of the present invention laundry machine.

The drum driving motion means a combination of the rotational direction and the rotational speed of the drum, and the laundry located inside the drum is changed in the falling direction and the dropping point by the drum driving motion. Will be different. The drum driving motion is implemented by controlling the motor.

Since the laundry is raised by the lift 135 provided on the drum inner circumferential surface when the drum is rotated, the impact applied to the laundry can be changed by controlling the rotation speed and the rotation direction of the drum. That is, the mechanical forces such as friction between laundry, friction between laundry and washing water, and dropping impact of laundry can be changed. In other words, it is possible to vary the degree of tapping or rubbing the laundry for washing, it is possible to vary the degree of dispersion or flipping of the laundry.

Accordingly, the present invention provides a method for controlling a washing machine having various drum driving motions, and thus, the drum driving motion is optimized according to the detailed steps of the type of laundry, the degree of contamination of the laundry, each step, and each step. It is possible to process the laundry by the mechanical power of. This can improve the washing efficiency of the laundry. In addition, due to the consistent drum drive motion it can prevent excessive washing time to reduce the time required.

On the other hand, in order to implement such various drum driving motion, the motor 140 is preferably a direct type motor. That is, the stator of the motor is preferably the tub 120 is fixed to the rear, the rotor of the motor is rotated to drive the drum 120 directly. This is because by controlling the rotation direction, torque, etc. of the motor, it is possible to immediately control the drum drive motion by preventing the time delay or backlash (maximum).

On the other hand, in the form of transmitting the rotational force of the motor to the rotating shaft through the pulley or the like, a drum driving motion in which a time delay or backlash is allowed, for example, a tumbling drive or a spin drive may be possible. Therefore, it is not desirable to implement various drum driving motions. The type of driving method of the motor and the drum is obvious to those skilled in the art, so detailed description thereof will be omitted.

2 (a) is a diagram showing a rolling motion (rolling motion). The rolling motion is a motion in which the motor 140 rotates the drum 140 in one direction, and the laundry on the inner circumferential surface of the drum falls to the lowest point of the drum at a position less than about 90 degrees in the drum's rotation direction.

That is, when the motor 140 rotates the drum at about 40 RPM, the laundry located at the lowest point of the drum 140 rises a predetermined height along the rotational direction of the drum 140 and is less than about 90 degrees in the rotational direction at the lowest point of the drum. As it rolls in position, it flows to the lowest point of the drum. Visually, when the drum rotates clockwise, the laundry continues to roll in three quadrants of the drum.

The laundry is washed through the rolling motion through friction with the wash water, friction between the laundry, and friction with the drum inner circumferential surface. And through this motion, the laundry is turned upside down enough to obtain the effect of gently scrubbing the laundry.

Here, the drum RPM is determined in relation to the radius of the drum. That is, as the RPM of the drum increases, centrifugal force is generated on the laundry in the drum. Due to the difference in size between the centrifugal force and gravity, the flow of laundry in the drum is changed. Of course, the rotational force of the drum and the friction between the drum and the laundry should also be taken into account.

Therefore, in the rolling motion, the RPM of the drum is determined so that the centrifugal force and the friction force are less than the gravity 1G.

FIG. 2B is a diagram showing tumbling motion.

The tumbling motion is a motion in which the motor 140 rotates the drum 130 in one direction, but the laundry on the inner circumferential surface of the drum falls to the lowest point of the drum at a position of about 90 to 110 degrees of rotation of the drum. The tumbling motion is a drum driving motion that is generally used during washing and rinsing because mechanical force is generated only by controlling the drum to rotate in one direction at an appropriate RPM.

That is, the laundry put into the drum 140 is located at the lowest point of the drum 130 before the motor 140 is driven. When the motor 140 provides torque to the drum 130, the drum 130 rotates, and the lift 135 provided on the inner circumferential surface of the drum moves laundry from the lowest point in the drum to a predetermined height. . If the motor 140 rotates the drum 140 to about 46 RPM, the laundry drops from the lowest point of the drum to the lowest point of the drum at a position of about 90 to 110 degrees in the rotational direction.

The tumbling motion generates a greater centrifugal force than the centrifugal force in the rolling motion, but the RPM of the drum is determined to generate less than the gravity.

Visually, tumbling motion is a form in which the drum moves from the third quadrant to a part of the second quadrant at the lowest point of the drum when it is rotated clockwise and then falls off the drum's inner peripheral surface to the lowest point of the drum.

Therefore, the tumbling motion allows the laundry to be washed by the impact force caused by friction and dropping with the wash water, thereby performing washing and rinsing with a mechanical force greater than that of the rolling motion. And, because the motion to fall off the drum to some extent it is effective to separate the tangled laundry and to disperse the laundry.

2 (c) is a diagram showing step motion. The step motion is a motion in which the motor 140 rotates the drum 130 in one direction, but the laundry on the inner circumferential surface of the drum drops from the highest point in the drum's rotational direction (a position of about 180 degrees) to the lowest point of the drum.

When the motor 140 rotates the drum 130 to about 60 RPM or more, the laundry can be rotated without falling by centrifugal force. The step motion is performed at a speed such that the laundry does not fall from the drum inner circumferential surface by the centrifugal force. After the drum is rotated, the drum is braked to maximize the impact force on the laundry.

In the step motion, the motor 140 rotates the drum at a speed at which the laundry does not fall from the outer circumferential surface of the drum by centrifugal force (about 60 RPM or more), and the laundry is located near the highest point of the drum (180 degrees in the rotational direction). The reverse torque is controlled to supply the drum 130.

Therefore, the laundry rises in the rotational direction of the drum at the lowest point of the drum 130 and then falls from the highest point of the drum 130 to the lowest point at the moment the drum is stopped by the reverse torque of the motor 140. Is a motion of washing by the impact force caused by the process of the laundry in the drum falls to the maximum drop. The mechanical force generated by such step motion is larger than the rolling motion or tumbling motion described above.

Visually, the step motion is a form in which the drum moves clockwise from the lowest point of the drum to the highest point of the drum after passing from the third quadrant to the highest point of the drum and then suddenly falls off the inner peripheral surface of the drum to the lowest point of the drum. Therefore, since the distance falling in the drum in the step motion is the largest, it is possible to more effectively provide a mechanical force when the amount of small amount.

On the other hand, the motor 140 is preferably reversed braking for braking the drum. The reversed phase braking is a method of braking the motor by generating a rotational force in a direction opposite to the direction in which the motor is rotating. The phase of the current supplied to the motor can be reversed to induce a rotation force opposite to the direction in which the motor is rotating, and the reverse phase braking enables rapid braking of the motor. Accordingly, the reversed braking is the most suitable braking method for the step motion which gives a strong impact on the laundry.

Thereafter, the motor 140 applies torque to the drum 130 again to raise the laundry at the lowest point of the drum to the highest point. That is, after the torque is applied to rotate clockwise, the torque is momentarily stopped by applying the torque to rotate in the counterclockwise direction, and then the step motion is implemented by applying the torque to rotate clockwise again.

As a result, the step motion is a motion of washing the laundry and the laundry introduced into the through-hole 131 during the rotation of the drum, and washing the laundry by the impact force when the laundry is located at the top of the drum.

Figure 2 (d) is a view showing a swing motion (swing motion). The swing motion is a motion in which the motor 140 rotates the drum 130 in both directions, so that laundry is dropped at a position less than about 90 degrees in the rotation direction of the drum.

That is, when the motor 140 rotates the drum 130 counterclockwise to about 40 RPM, the laundry located at the lowest point of the drum 130 rises a predetermined height counterclockwise. At this time, the motor stops the rotation of the drum before the laundry reaches a position of about 90 degrees counterclockwise of the drum so that the laundry moves to the lowest point of the drum at a position less than about 90 degrees counterclockwise of the drum.

Thereafter, the motor 140 rotates the drum 130 clockwise to about 40 RPM so that the falling laundry rises a predetermined height clockwise along the rotational direction of the drum. On the other hand, the motor 140 stops the rotation of the drum before the laundry reaches the position of the drum clockwise of about 90 degrees so that the laundry drops to the lowest point of the drum at a position less than about 90 degrees clockwise of the drum.

In other words, swing motion is a motion in which the drum rotates in one direction and stops and the rotation and stops in reverse direction. Visually, the laundry rises from the three quadrants of the drum to a portion of the second quadrant and then falls gently. It can be said to be a form that repeatedly rises up and falls smoothly.

At this time, the braking of the motor 140 can minimize the load generated on the motor 140 by using the power generation braking, minimize the mechanical wear of the motor 140, and at the same time can control the impact applied to the laundry.

The power generation braking is a braking method in which the motor acts as a generator by rotational inertia when the current applied to the motor is turned off. When the current applied to the motor is turned off, the direction of the current flowing through the coil of the motor is opposite to the direction of the current before the power is turned off. Therefore, a force (Fleming's right hand law) acts in a direction that hinders the rotation of the motor, thereby braking the motor. The power generation braking, unlike the reverse braking, does not brake the motor smoothly but smoothly changes the rotational direction of the drum.

Thus, visually, the swing motion is a form in which the laundry flows in the form of eight characters lying sideways over the third and fourth quadrants of the drum.

Figure 2 (e) is a view showing a scrub motion (scrub motion). The scrub motion is a motion in which the motor 140 rotates the drum 130 in both directions, and the laundry is dropped at a position of about 90 degrees or more in the rotation direction of the drum.

That is, when the motor 140 rotates the drum 130 counterclockwise to about 60 RPM or more, the laundry located at the lowest point of the drum 130 rises a predetermined height counterclockwise. At this time, the motor is to stop the rotation of the drum by providing a reverse torque to the drum after the laundry has passed the counterclockwise position of about 90 degrees. Then, the laundry on the inner circumferential surface of the drum drops rapidly.

Thereafter, the motor 140 rotates the drum clockwise at about 60 RPM to raise the dropped laundry a predetermined height clockwise. The motor 140 stops rotation of the drum by providing reverse torque to the drum 130 when the laundry passes through the clockwise 90 degree position of the drum. Therefore, the laundry on the inner circumferential surface of the drum falls to the lowest point of the drum at a position 90 degrees or more clockwise of the drum.

Thus, the scrub motion is to wash the laundry by dropping the laundry sharply at a predetermined height. On the other hand, the motor 140 is preferably reversed braking for braking the drum.

Since the direction of rotation of the drum is sharply switched, the laundry does not deviate greatly from the inner circumferential surface of the drum, thereby obtaining a very strong rubbing effect. The scrub motion is a form in which the laundry moved to the part of the second quadrant after the third quadrant drops sharply and moves again to the part of the first quadrant after the fourth quadrant. Therefore, it can be said that the laundry which rises visually descends along the inner peripheral surface of a drum.

Figure 2 (f) is a view showing the filtration motion (filtration motion). The filtration motion is a motion in which the motor 140 rotates the drum 130 so that the laundry does not fall from the inner circumferential surface of the drum by centrifugal force, and sprays the washing water into the drum.

That is, the filtration motion is in close contact with the inner circumferential surface of the drum after the laundry is unfolded, so that the washing water is sprayed into the drum while the washing water is rotated by the centrifugal force to the tub 120 through the laundry, the through hole 131 of the drum. Get out. Therefore, the filtration motion expands the surface area of the laundry while allowing the washing water to penetrate the laundry, thereby obtaining the effect of supplying the washing water evenly to the laundry.

2 (g) is a diagram showing a squeeze motion. The squeeze motion repeats the operation of separating the laundry from the inner peripheral surface of the drum by lowering the rotational speed of the drum 130 after rotating the drum 130 so that the laundry does not fall from the inner peripheral surface of the drum by centrifugal force The motion of spraying the washing water into the drum during the rotation of the drum.

In other words, the filtration motion is continuously rotated at a speed at which the laundry does not fall from the inner circumferential surface of the drum, but the squeeze motion changes the rotation speed of the drum to repeat the washing and close contact with the inner circumferential surface of the drum 130. There is.

The process of spraying the washing water into the drum 130 during the filtration motion and the squeeze motion may be implemented as a circulation passage and a pump although not shown in FIG. 1. The pump communicates with the bottom of the tub 120 to pressurize the washing water, and the circulation passage may be provided so that one side is connected to the pump and the other side may spray the washing water from the top of the drum into the drum. .

However, since the above-described circulation flow path and the pump are necessary to inject the laundry water stored in the tub, it is not necessary to exclude the case of spraying the washing water into the drum through the injection water supply flow path connected to the water supply source outside the cabinet. no.

That is, if the injection water supply passage has one side connected to the water supply source, the other side is connected to the tub, but provided with a nozzle for injecting the washing water into the drum, washing water into the drum of the filtration and squeeze motion Will be able to spray.

3 shows the step motion in more detail. When the motor 140 applies torque to the drum 130 in a predetermined direction, the drum rotates in a predetermined direction, so that the laundry is brought into close contact with the inner circumferential surface of the drum 130. At this time, the drum is preferably rotated to about 60 RPM or more so that the laundry can rise in close contact with the inner peripheral surface of the drum. Here, the rotational speed of the drum is determined in relation to the inner diameter of the drum, and is determined as the rotational speed at which the centrifugal force becomes larger than gravity.

Immediately before the laundry reaches the highest point in the drum past the point of rotation of the drum 130 in the 90 degree direction, the motor 140 is braked in reverse to temporarily stop the rotation of the drum. Since the inverse braking timing of the motor 140 is closely related to the position of the laundry in the drum 130, a device capable of determining or predicting the position of the laundry is preferably provided, and a hole capable of determining the rotation angle of the rotor. An example is a sensing device having a Hall effect sensor.

Through the Hall sensor, the controller may determine the rotation direction as well as the rotation angle of the rotor. Details thereof will be apparent to those skilled in the art, and thus a detailed description thereof will be omitted.

The control unit may determine the rotation angle of the drum through the sensing device, and controls the motor 140 to reverse brake before the drum reaches 180 degrees. In this case, the reverse phase braking means applying a reverse phase current so that the drum rotates in the opposite direction. For example, after the current is applied to the motor to rotate clockwise, the current is suddenly applied to rotate counterclockwise.

Therefore, the drum rotated in the clockwise direction stops at an instant, and the angle is substantially 180 degrees so that the laundry drops from the highest point in the drum to the lowest point in the drum. Thereafter, current is continuously applied so that the drum continues to rotate clockwise.

3 illustrates a case in which the drum rotates clockwise, step motion may be performed during counterclockwise rotation. However, since the step motion generates a high load on the motor 140, it is preferable to lower the running rate.

The running rate is the ratio of the driving time of the motor to the sum of the driving time and the stopping time of the motor 140, and the running rate 1 means that the motor is driven without the stopping time. In the case of the step motion, it is preferable that the control rate is about 70% when considering the load of the motor. For example, the step motion may be stopped for 4 seconds after driving for 10 seconds.

4 is a view showing scrub motion in more detail. When the motor 140 applies torque to the drum 130, the laundry in the drum rotates clockwise. The drum 130 preferably controls the motor 140 to have a rotation speed of about 60 RPM or more so that laundry can rotate in close contact with the inner circumferential surface of the drum. Then, when the laundry passes through the 90 degree point in the rotational direction of the drum, the motor 140 is braked in reverse, so that the laundry closely attached to the inner circumferential surface of the drum falls to the lowest point of the drum.

When the laundry falls to the lowest point, the motor 140 provides torque for rotating the drum counterclockwise. Therefore, the dropped laundry adheres to the inner circumferential surface of the drum and rotates in a counterclockwise direction. When the laundry is located between a 90 degree counterclockwise point and the highest point of the drum at the lowest point of the drum, the motor is braked in reverse and thus close to the inner circumferential surface of the drum. The laundry will fall to the lowest point of the drum.

As described above, the scrub motion generates a high load on the motor 140 as well as the step motion. Therefore, the scrub motion is preferably executed by lowering the running rate. The 70% running rate is repeated by stopping for 4 seconds after the scrub motion is executed for 10 seconds. For example, it may be controlled.

On the other hand, although not shown in the swing motion is changed the braking method of the motor in the scrub motion to the power generation braking, and since the time of power generation braking is changed to when the laundry reaches the 90 degrees of the rotational direction of the drum, detailed description thereof will be omitted.

FIG. 5 is a graph comparing the cleaning force and the degree of vibration of each motion disclosed in FIG. 2. The horizontal axis represents the washing force, and the more the left side is, the easier it is to separate the dirt contained in the laundry. The vertical axis represents the vibration or noise level, and the vibration level increases as the upper direction increases, but the washing time for the same laundry decreases.

The step motion and scrub motion is a motion suitable for the washing course to reduce the washing time and the case of heavy contamination of the laundry due to the excellent washing power. In addition, the step motion and scrub motion is a motion with a high level of vibration and noise. Therefore, when the laundry is sensitive clothing or the washing course that needs to minimize noise and vibration is an undesirable motion.

The rolling motion is a motion characterized by excellent washing power and low vibration level, minimizing laundry damage and low motor load. Therefore, it can be applied to all washing courses, but it is a motion suitable for the initial washing detergent dissolution and washing wet.

The tumbling motion has a lower washing force than the scrub motion but the vibration level is a motion between the scrub motion and the rolling motion. Since the rolling motion takes longer washing time than the tumbling motion instead of low vibration level, the tumbling motion is applicable to all washing courses but is a useful motion especially for the step for podis dispersion.

The squeeze motion is similar to the tumbling motion in terms of the fine force, and the vibration level is higher than the tumbling motion. The squeeze motion is a useful motion for the step of rinsing because the washing water is discharged to the outside of the drum in the process of repeating the contact and separation of the laundry on the inner peripheral surface of the drum.

The filtration motion has a lower cleaning force than the squeeze motion, and the noise level is similar to that of the rolling motion. The filtration motion is a motion that is useful for the step where the washing water is discharged to the outside of the drum through the laundry in a state in which the laundry is in close contact with the inner peripheral surface of the drum.

The swing motion is the motion with the lowest vibration level and washing power. Therefore, swing motion is a motion that is useful for low noise or low vibration washing courses and is suitable for washing sensitive clothes.

As mentioned above, each drum drive motion has advantages and disadvantages. Therefore, it would be desirable to use these various drum driving motions appropriately. And each drum drive motion will have advantages and disadvantages in relation to the quantity. Therefore, in the same course, the same stroke, etc., it would be desirable to use various drum driving motions properly in relation to the quantity of the gun.

Hereinafter, a control method of a washing apparatus according to an embodiment of the present invention will be described in detail with reference to FIG. 6.

This embodiment relates to a control method for performing a washing course. The washing course here refers to the operation of a washing machine in which washing strokes, rinsing strokes and dehydration strokes are automatically performed in sequence. The washing course may be selected through the course selection unit 117.

The course selector 117 may generally be provided in the form of a rotary knob. A plurality of courses are printed around the rotary knob, and the user may select a specific course among the plurality of courses by rotating the rotary knob. The rotary knob is provided with LEDs corresponding to the respective courses, and when a specific course is selected, the corresponding LED is emitted so that the user can easily know which course is selected.

Since the matter about the course selection unit 117 will be apparent to those skilled in the art, detailed description thereof will be omitted.

The user selects a desired driving course through the course selection unit 117 provided in the control panel 115. That is, the controller receives a course to be driven among the plurality of driving courses from the user (S10). The input driving course is a washing course for washing the laundry using the wash water and detergent, a rinsing stroke for discharging residual detergent and contaminants from the laundry using the wash water, and a dehydration stroke for discharging the washing water from the laundry. It is made, including.

On the other hand, it is preferable that the driving course is provided in a variety of ways. There are a plurality of such driving courses depending on the type of laundry, the material, and the specific purpose.

According to an embodiment of the present invention, it is preferable that washing is performed by driving the drum so that the motion (drum driving motion) in which the laundry flows in the drum is changed according to the selected course. In particular, the drum driving motion in the washing stroke is preferably controlled to be different. Here, the drum driving motion is different from the actual running rate associated with the drum running time and the stopping time. In other words, as the drum is driven, it is preferable that the laundry flows in the drum in what form, that is, the rule in which the laundry flows is controlled according to the selected course.

When the washing administration step (S100) is finished, the rinsing administration step (S200) and the dehydration administration step (S300) is performed in order to end all selected driving courses.

Here, the plurality of driving courses may be provided according to the type of laundry. That is, it may be provided according to the material of the laundry. For example, a cotton course for washing cotton fabrics such as towels, tablecloths, and t-shirts, a synthetic course or easycare course for washing fabrics made of synthetic fibers, and synthetics with cotton fabrics. A mix course may be provided for washing textile cloth.

The synthetic fiber material includes a material such as polyamide, acrylic and polyester.

Cotton and synthetic fabrics have different properties. In other words, the cotton fabric is resistant to friction and impact and less deformed than the synthetic fiber fabric. And cotton fabrics can absorb more washing water than synthetic fabrics. Cotton fabrics are less wrinkled than synthetic fabrics.

Therefore, it is preferable that the washing course prepared according to the material of the cloth be performed in different forms of washing stroke, rinsing stroke and dehydration stroke according to the characteristics of the cloth material.

Washing administration (S100) comprises a water supply step (S110) for dissolving the detergent in the wash water by supplying the wash water and detergent to the tub 120 or drum 130. That is, the washing water is supplied from the outside of the washing apparatus together with the detergent for washing. Here, in order to initially supply the wash water and the detergent to the laundry, it is preferable to directly supply the wash water and the detergent to the laundry in the drum. That is, the water supply flow path of the washing water may be positioned to supply the washing water from the drum front upper portion to the inside of the drum instead of the tub lower portion. In this case, when the detergent is a powder detergent, there is a fear that the detergent dissolution may not be sufficient, but due to the drum driving motion as described later, the detergent can be sufficiently dissolved. Therefore, by initially supplying the wash water and detergent to the laundry can reduce the time required for the washing administration (S100) and can further increase the washing efficiency.

In addition, the washing administration comprises a main washing step (S130) for washing the laundry by driving the drum. Therefore, the water supply step S110 may be referred to as a preparation step for main washing. Therefore, in order to increase the efficiency of the washing administration (including washing efficiency and time reduction effect), it would be desirable to enhance the efficiency in the water supply stage.

In the water supply step (S110), a process in which the detergent is dissolved in the wash water will be performed. In order to increase the efficiency of the washing administration it will be desirable that the detergent dissolution is effectively completed early in the water supply stage. Therefore, in the water supply step, a process (S122) for promoting detergent dissolution is preferably performed.

In order to promote detergent dissolution, the motion of the laundry flowing in the drum (drum driving motion) is preferably a motion of supplying strong mechanical force to the wash water and the laundry. Therefore, in the detergent dissolution promoting step (S111), it is preferable that a step motion of repeating the laundry rising along the rotating drum to fall out of the inner circumferential surface of the drum by braking of the drum is performed. Of course, the scrub motion may be performed in which the laundry rising along the rotating drum instead of the step motion is repeatedly raised and lowered due to braking and reverse rotation of the drum. Since the step motion and the scrub motion are motions in which the drum is suddenly stopped after rotation, the flow direction of the laundry is drastically changed. Therefore, it can be referred to as a motion in which a strong impact force is applied to the laundry. In addition, such a motion may be referred to as a motion to apply a strong impact to the wash water. Therefore, by providing a strong mechanical force at the beginning of the water supply step (S110) it is possible to promote the detergent dissolution to improve the efficiency of the washing administration.

In general, the drum is driven in a tumbling motion in the water supply stage. In other words, the laundry is lifted and dropped as the drum is continuously rotated in one direction at a constant speed.

According to the inventors' experiment, it was found that the time required for the detergent to be dissolved in the wash water was 15 minutes through this tumbling motion. In other words, it was found that the time required to saturate the detergent was 15 minutes.

On the other hand, it was found that the time required for saturation of the detergent was 9 to 10 minutes through step motion or scrub motion. In other words, it was found that the faster detergent was dissolved in the wash water through the step motion or the scrub motion. Therefore, this motion can reduce the time required to perform a specific washing course as a whole was found to be very effective.

This is because the impact force is applied as the step motion or the scrub motion falls as well, and the strong vortex is generated in the wash water due to the sudden change of the drum rotation such as rotation and stop.

On the other hand, the drum drive motion in the detergent dissolution promoting step (S111) is preferably performed differently depending on the material of the laundry. For example, it is preferable that the cloth of cotton is performed in scrub motion, and the cloth of synthetic fiber is performed in step motion. However, the present invention is not limited thereto, and in any case, the scrub motion or the step motion may be performed.

Scrub motion is not only a drop of laundry but also a motion that causes the laundry to stretch and rub. Therefore, the effect of rubbing in the initial stage of washing process can also be expected. However, such a motion is preferably performed in a cloth resistant to friction. Therefore, it is more preferable that the drum driving motion is a scrub motion in the detergent dissolution promoting step S111 of the cotton course.

On the other hand, synthetic fiber fabrics are less specific than cotton fabrics due to the characteristics of the material. That is lighter. In addition, the moisture content is lower than the cotton material and the risk of damage to friction is high. Therefore, it is preferable that the detergent dissolution promoting step (S111) is performed in step motion to prevent damage to the cloth and promote detergent dissolution. That is, the drum drive motion in the detergent dissolution promoting step (S111) of the synthetic fibers is preferably a step motion. By applying the maximum impact of dropping on light cloth, it will promote the dissolution of detergent and can be expected to be sucked at the beginning of the washing process.

In general, it is difficult to expect to perform washing with a washing course suitable for each by separating along the fabric of cotton and the fabric of synthetic fiber. This is because they enjoy wearing cotton and synthetic fabrics in their daily lives. It is also because I like to wear cloth mixed with cotton and synthetic fibers. Therefore, in response to this phenomenon, it is desirable to provide a washing course, that is, a mixing course, which combines the advantages of a cotton course and a synthetic fiber course.

This mixed course is very useful for the following reasons.

When a user separates and washes cotton and synthetic fiber fabrics, a problem may occur that the laundry is suspended until a certain amount of laundry is collected. Therefore, contaminated laundry may be left for a long time. Of course, when washing a small amount of laundry separately may cause excessive energy waste. Therefore, it is possible to prevent the problem of the laundry is left unattended and energy waste through the mixing course that can be mixed with the laundry of the most common material.

Drum driving motion in the detergent dissolution promoting step (S111) of the mixing course is preferably made of a combination of step motion and scrub motion. In other words, by combining the step motion and scrub motion that is optimal for cotton and synthetic fiber material, it is possible to expect effective washing effect in the early stage of the detergent dissolution and washing administration. In this case, since the drum driving motion of different forms are combined, the flow of the laundry, the flow of the wash water, and the like can be further diversified to further increase the efficiency of the washing administration.

In the water supply step (S110), a process of sufficiently wetting the laundry with washing water as well as dissolving the detergent should be performed. This is because, in the case of the drum washing machine, the washing is not performed while the laundry is immersed in the washing water. Therefore, it should not be overemphasized that the initiation of laundry should be carried out early in the washing administration.

To this end, in the detergent dissolution promoting step (S111), a circulation step of circulating the washing water in the tub and resupplying into the drum may be performed. This circulation step is to supply the wash water on the outside of the drum to the inside of the drum to flow the overall wash water. Therefore, it is possible to speed up the coating and become more advantageous for promoting detergent dissolution.

On the other hand, the detergent dissolution promoting step (S111) may proceed for about 2 minutes until the water supply is completed. Of course, all of the water supply may be completed in the detergent dissolution promotion step (S111), and the water level may be lowered through the core in the step described later, so that additional water may be supplied. Therefore, the detergent dissolution promoting step (S111) is performed for a relatively short time, so the laundry damage in this step can be ignored. Therefore, the drum driving motion in the detergent dissolution promoting step (S111) in all the above-described courses may be a scrub motion.

After the detergent dissolution promoting step (S111) it can be carried out step (S112) to promote the core. That is, it is preferable that the coating core step S112 is performed.

This step may be performed after the water supply step is made to some extent and until the water supply step S120 is completed. That is, the siege step (S112) may be referred to as a step of completely performing the siege. Of course, it can also be carried out after the water supply is completed. Preferably, the water level is reduced in the coating step (S112) will be made additional water supply.

In the detergent dissolution promoting step (S111) is made part of the core, the washing water level rises and the washing water is still inside the drum. Therefore, it is then preferable to carry out a step of further facilitating blanketing. It is preferable that the drum driving motion in the coating step (S123) is controlled differently than in the detergent dissolution promoting step (S111).

The drum driving motion in the coating core step S112 may include a rolling motion. In addition, the drum driving motion in the coating core step may include a filtration motion. Such a filtration motion and a rolling motion may be performed in order.

Here, the filtration motion is a motion for spreading the laundry widely to widen the surface area of the laundry, and thus it is very preferable to perform the coating core evenly. In addition, since the rolling motion performs a process of continuously inverting the laundry, it is very preferable to uniformly carry out the bulking because the washing water accumulated in the lower drum can be contacted with the laundry evenly.

In order to make the most of these effects, different drum driving motions, that is, a filtration motion and a rolling motion, may be repeatedly performed in order to perform the core packing step S112.

Here, the rolling motion has a smaller friction force applied to the laundry than the scrub motion described above. And, rolling motion takes place at the time when the bulking is mostly done. Therefore, even if the friction force is applied between the wet laundry, there is little concern about damage to the fabric. For this reason, the wrapping core step S112 performed in the rolling motion may be performed in the same form regardless of the material of the cloth. That is, it is preferable that the rolling motion is performed in the core layer step S112 regardless of the cotton material or the synthetic fiber material. Therefore, even if the user selects any of the cotton course, mixed course or synthetic fiber course, the rolling motion is preferably performed in the coating step (S112) performed after the detergent dissolution promotion step (S111).

On the other hand, the coating core step (S112) may be carried out divided into two steps. For example, when the sieve step S112 is performed for 10 minutes, the sieve stage 1 may be performed for 5 minutes and the sieve stage 2 may be performed for 5 minutes. Specifically, the additional water supply may be performed in the first sieve stage, and the second sieve stage may be performed in a state where water supply is completely completed.

Here, it is preferable that the drum driving motion is controlled differently in order to more effectively dissolve the detergent and the core in the first and second stages and to supply the washing water and the detergent to the laundry.

For example, the drum driving motion in the first core step may be a rolling motion, and the drum driving motion in the second core step may be a combination of a rolling motion and a filtration motion (including a circulation step). That is, in the first core stage, the rolling motion may be controlled at a predetermined actual operation rate. In the second core stage, the rolling motion may be controlled to be repeated four times after the filtration motion.

Here, the rolling motion is to turn the laundry continuously in the lower drum to increase the contact time between the wash water and the detergent, the filtration motion to spread the laundry to ensure that the laundry water and detergent evenly supplied to the laundry. Therefore, blanketing can be effectively performed. According to the experiments of the present inventors, it took about 13 minutes until the completion of the cladding in the conventional tumbling motion is carried out, it was found that about 10 minutes was required in the embodiment of the present invention.

In addition, the drum driving motion in the first core step may be controlled differently according to the amount of the gun. To this end, the quantity detection step S30 may be performed before the washing operation S100 is performed. The quantity detection method may be performed using a current value required to reach the target drum RPM, a time required to stop at the target RPM, and the like, and various methods are known. Therefore, detailed matters will be apparent to those skilled in the art, and thus detailed descriptions thereof will be omitted.

The drum driving motion in the first core step may vary according to the detected amount in the amount detecting step (S30). For example, the drum may be driven in a rolling motion as described above when it is above a predetermined dose level. When the drum is below a predetermined dose level, the drum may be driven by combining a step motion and a rolling motion.

Here, the step motion is to drop the laundry sharply after lifting the laundry, if there is a large amount of the laundry as a whole, the distance to fall is bound to decrease. Therefore, it is more preferable when the quantity is small. However, such step motion may cause damage to laundry. Therefore, in the case of the cotton course, when the quantity is less than the predetermined level, the first core step may be performed by a combination of step motion and rolling motion, and when the quantity is more than the predetermined level, the first core step may be performed by the rolling motion. In addition, in the synthetic fiber course and the mixed course that is concerned about the damage to the laundry can be carried out step 1 of the coating core in the rolling motion irrespective of the amount.

On the other hand, it is preferable that the circulation step is performed in association with the drum drive in the above-described water supply step (S110). That is, the circulation step is preferably performed in synchronization with the driving of the motor for driving the drum. In this case, the drum is driven and the laundry water circulated when the laundry flows can be supplied to the laundry to more effectively achieve the purpose of the water supply step.

The washing operation (S100) comprises a main washing step 130, a heating step (S120) for heating the inside of the drum to prepare the main washing between the main washing step (S130) and the water supply step (S110). ) May be performed.

Here, the heating step is a step of raising the temperature of the wash water or the drum internal temperature by heating the wash water through a heater provided under the tub or by supplying steam into the drum. Therefore, the heating step may be performed or omitted as necessary. That is, when washing with cold water, the heating step (S120) will not be performed. However, when the course is selected, the washing water temperature is set to be higher than the cold water by default, or if the washing water temperature is selected to be higher than the cold water through the option selector 118, the heating step S120 is performed. Will be performed.

The heating step S120 is preferably performed differently according to the selected driving course.

That is, the washing water temperature in the heating step is preferably set according to the material of the laundry.

Cotton is resistant to heat. The higher the temperature of the wash water, the better the detergent can dissolve in the wash water, and the more active the detergent is. Therefore, when the cotton course is selected, the washing water temperature in the heating step (S120) is preferably set to about 60 degrees Celsius. Of course, the temperature of the wash water is preferably provided so that the user can select from cold water to 95 degrees Celsius through the option selection unit 118. The higher the wash water temperature, the greater the activation of detergents, the better the washability and the higher the sterilization and bleaching effects. However, energy will be consumed in proportion.

On the other hand, synthetic fibers are susceptible to heat. Therefore, it is necessary to prevent the laundry from being damaged by heat in the synthetic fiber course or mixed course. If the synthetic fiber course or mixed course is selected for this purpose, the washing water temperature in the heating step (S120) is preferably set to about 40 degrees Celsius. Of course, the temperature of the wash water is preferably provided so that the user can select from the cold water to 60 degrees Celsius through the option selection unit 118. It is desirable to exclude user selection higher than 60 degrees Celsius.

The drum driving motion in the heating step S120 is preferably a tumbling motion regardless of the selected course. This is because tumbling motion is a motion that loosens laundry evenly while reducing damage to the laundry. Thus, the laundry can receive heat sufficiently from steam or heated wash water. In addition, the circulation step may be performed in the heating step. However, as in this case, the drum drive and the circulation stage can be synchronized. However, since the circulation step is preferably performed after the initial heating to some extent, it may be desirable that the circulation step is performed in synchronism with the drum drive after a predetermined time elapses after the start of the initial drum drive.

When all of the above-described water supply step (S110) and the heating step (S120) is finished, the main washing step (S130) in which washing is performed in earnest is performed, and the washing administration (S100) is performed as the main washing step (S130) is finished. Will end.

The drum driving motion in the main washing step (S130) may be performed by a combination of rolling motion, tumble motion, and swing motion.

In particular, the drum driving motion in the main washing step (S130) is preferably carried out differently depending on the selected course. This is because the effect of both protecting the cloth and improving the washing power.

That is, when washing the cloth of cotton material is preferably a drum driving motion to wash with a strong mechanical force, when washing the cloth of synthetic fiber material is preferably performed a drum driving motion to wash with a low mechanical force.

The main washing step (S130) is a step that takes the most time in the washing administration (S100). Therefore, it is preferable that the washing is controlled to perform the most efficiently. In addition, since the time required is a lot of damage to the cloth can be seen as a step that can occur.

In consideration of this, when the cotton course is selected, the drum is controlled to be driven by a combination of a rolling motion and a tumbling motion in the main washing step (S130). The combination of the two different motions allows the application of various types of strong mechanical forces to the laundry to further enhance the washing effect. That is, since there is little fear of damage to the cloth due to the characteristics of the cotton material, it is preferable to wash with a strong mechanical force to further improve the washing effect.

On the contrary, when the synthetic fiber course is selected, the drum is controlled to be driven by a combination of swing motion and tumbling motion in the main washing step (S130). Likewise, the combination of different motions can further enhance the washing effect. Here, the swing motion is a motion in the form of gently shaking the laundry in the wash water. Therefore, damage to the laundry due to the frictional force can be minimized. In addition, the time that the laundry is in contact with the wash water is increased to enhance the washing effect.

The course is provided differently according to the material of such cloth, and the drum driving motion during main washing in each course is preferably controlled to be different.

Meanwhile, in the mixed course, since the course is prepared to effectively wash both the cotton cloth and the synthetic fiber cloth, it is necessary to enhance the washing effect and minimize the damage of the laundry regardless of the material. Therefore, in order to satisfy this, the drum driving motion in the main washing step in the mixing course is preferably performed by a combination of tumbling motion, swing motion, and rolling motion. That is, a swing motion for preventing cloth damage is included, and a rolling motion for further improving the washing force is included.

As described above, even if any one of the cotton course, synthetic fiber course or mixed course is selected, the drum driving motion in the main washing step (S130) is preferably controlled to combine two or more different motions. This is to generate a variety of mechanical force and the flow of wash water, but to increase the visual satisfaction to the user.

The user can see the laundry washed inside the drum through the door from the outside of the washing apparatus. The user can see that the washing is done in various motions instead of uniform motion inside the drum. This will make the user emotionally feel that washing is performed more effectively. Therefore, the user's satisfaction can be further increased.

On the other hand, if the cotton course is selected in the main washing step (S130) may be performed by combining the filtration motion and tumbling motion. In this case, the circulation stage can likewise be synchronized with the drum drive. Cotton is less susceptible to damage to laundry, so it is possible to supply laundry and detergent more consistently through filtration motion.

On the other hand, when the synthetic fiber course and mixed course is selected in the main washing step (S130) may be performed by combining the swing motion and tumbling motion. In this case, since the laundry may be damaged, it is preferable that the swing motion is performed instead of the filtration motion. Likewise, the circulation stage can be synchronized with the drum drive.

As described above, the control method according to an embodiment of the present invention various drum driving motion in the water supply step (S110), heating step (S120), and the main washing step (S130) constituting the washing stroke (S100). To improve the efficiency of the laundry administration. That is, by varying the drum driving motion according to the course selected by the user to improve the efficiency of the washing administration, to prevent damage to the laundry.

On the other hand, the degree of contamination of the laundry can be selected through the option selection unit (S118). According to this selection, the heating rate in the heating step S120 and the main washing step S130 is preferably controlled differently. This is because, if the contamination level is low, increasing the running rate may damage the laundry unnecessarily.

However, it is preferable not to vary the actual operation rate in the water supply step (S110) according to the selected pollution degree. This is because the water supply step (S110) may be negligible because of the fact that the laundry rate is unnecessarily damaged because of the predetermined operation rate to optimize detergent dissolution and packing. This is because there is a fear that detergent dissolution and packing will not be sufficient to reduce the operation rate.

In addition, increasing the actual running rate further increases the time for applying mechanical force to the laundry. Therefore, as the operation rate increases, the risk of damage to laundry increases. In consideration of this, it is preferable that the driving rate in the washing administration S100 is controlled differently according to the course selected by the user. That is, it is preferable that the actual rate in a cotton course is controlled to become larger than the actual rate in a synthetic fiber course and a mixing course.

When the above-described washing stroke (S100) is finished, the rinsing stroke (S200) is performed.

In the rinsing cycle, the process of rinsing the laundry with the wash water and then draining the wash water may be repeated. According to an embodiment of the present invention, in the rinsing stroke, it is preferable to repeat the process of draining after rinsing in water supply three times. That is, the rinsing process is repeated to ensure that residual detergent and contaminants are discharged from the laundry.

Here, the water level of the rinsing stroke (S200) is preferably controlled higher than the water level in the washing stroke (S200). In other words, it is preferable to control the level so that the washing level inside the drum can be seen from the outside. That is, to further enhance the rinsing effect by using sufficient wash water.

The drum driving motion in the rinsing stroke (S200) is preferably a tumbling motion. The tumbling motion corresponds to repeating the laundry in the wash water and the laundry in the wash water. Therefore, the high water level as well as the tumbling motion may indicate that the rinsing is sufficiently performed visually. Therefore, the effect of being able to indicate that the rinsing is sufficiently performed emotionally to the user.

Here, the performance of the tumbling motion in the rinsing stroke (S200) can be seen as intended to improve the rinse as well as to prevent overheating of the motor. That is, the water level in the rinsing stroke is higher than the water level in the washing stroke. Therefore, the load due to the washing water on the rotating drum is bound to be greater. The step motion, scrub motion and swing motion described above are motions of repeating rotation and braking of the motor. Therefore, the braking generates a lot of load on the motor. In addition, when the washing level is high, the load due to the washing water may be further applied. Therefore, the drum driving motion in the rinsing stroke (S200) having a high washing water level is preferably a drum driving motion without braking to prevent overheating of the motor, and more particularly, a tumbling motion in the form of continuously rotating in one direction. do.

On the other hand, the rinsing step (S200) may be performed a circulation step for circulating the washing water inside the tub into the drum. That is, it is possible to implement that the rinsing is performed by flowing the washing water into the drum and running water. This may be referred to as spray rinsing, and this also has an effect of indicating that the user is sufficiently rinsed emotionally.

When the washing stroke (S100) and the rinsing stroke (S200) is finished, a dehydration stroke (S300) for discharging the washing water from the laundry as much as possible. The dehydration stroke (S300) is a process of discharging the washing water by centrifugal force so that the rotation speed of the drum exceeds 1G.

The dehydration stroke (S300) may include, in particular, the liver depilation (S301), the main shell (S302) and the inflating step (S303). Ganta step (S301) is a step to evenly disperse the gun inside the drum for separation or to measure the eccentricity, and to accelerate to drum RPM for the separation. Accordingly, the inter-detachment step S301 includes a step of spin-driving the drum at approximately 100 RPM. If the separation is not performed, the de-interval step (S301) will be omitted acceleration step for the separation and only spin driving at low dehydration RPM will be performed.

When the deprivation step S301 is completed, the deprivation step S302 is performed for a predetermined time.

When the separation step (S302) is finished, the laundry is attached to the inner peripheral surface of the drum due to the centrifugal force or tangled with each other. Therefore, it is very inconvenient for the user to take out the laundry. In order to prevent this, it is very preferable that the inflating step S303 is performed after the exiting step S302 is completed. This is to loosen the tangled laundry and to minimize creases if the laundry is left unattended after the course.

The drum drive in the inflating step (S303) is preferably a step motion. In other words, the greatest impact is to apply the laundry to the laundry more effectively to loosen. Through this, the user can easily withdraw laundry from the drum one by one without effort.

On the other hand, the drum RPM in the dewatering stroke is preferably set differently depending on the course selected by the user. This takes into account moisture content characteristics and wrinkle characteristics according to the material of the cloth.

Cotton fabrics have a high water content and are less likely to wrinkle. Even if wrinkled, it can be easily removed. On the other hand, a synthetic fiber cloth has a low water content and a high fear of wrinkles.

Therefore, in the case of the cotton course, it is preferable that the predetermined dewatering RPM is set higher than that of the mixed course and the synthetic fiber course. In addition, the preset RPM is preferably 1000 or more. Here, the dewatering RPM can be changed by the user through the option selection unit 118.

On the other hand, the predetermined RPM in the synthetic fiber course and mixing course may be preset to 400 to 600. In this case, even if dehydration at low RPM due to the nature of the material can be enough to discharge the wash water, to prevent the occurrence of wrinkles. Even in this case, the dewatering RPM may be changed by the user through the option selection unit 118. However, it is desirable to not allow dewatering RPMs above 800 RPM to be selected.

Hereinafter, a time management option will be described in detail.

In general, when a specific course is selected, driving starts according to a predetermined algorithm and the driving ends after a predetermined time elapses. Here, the driving time required for the course execution is preset by adding up the time required for the administrations constituting the course. Such driving time may be displayed on the display unit 119.

Meanwhile, depending on the current situation of the user, the driving time required when the course driving is performed for a preset time may be too long. For example, you have to go out after 1 hour and the preset time may be 1 hour 20 minutes. On the contrary, the contamination of the laundry is severe and may not be sufficiently washed with one hour and 20 minutes of washing. In order to easily solve this problem, a laundry machine capable of managing time will be needed.

The laundry machine according to the present invention may include a time management option so that the option unit S118 may manage time. In other words, it is possible to increase or decrease the driving time of the selected course by selecting the time management option.

The user can select a time save option through the time management option. Conversely, the time management option allows you to choose the intensive option. If this option is not selected, driving will be performed to the preset course. This time management selection may be made after the driving course selection (S10) before performing the washing administration (S100).

For example, if the time required to select a cotton course is 120 minutes, the time saving option may take 100 minutes, and the intensive washing option may take 140 minutes. Of course, there may be some deviation between the preset time and the actual time required.

Here, it is preferable that the time required in the washing stroke and / or the rinsing stroke is varied according to the selection of the time saving option. In other words, it is preferable that the stroke in which the time required varies depending on the selected course.

In cotton courses, synthetic courses and blended courses, it is important to improve washing. Therefore, when the time saving option is selected and when it is not (normal), the time required for the washing operation S100 is preferably not changed. Therefore, the time required for the rinsing stroke (S200) is preferably variable.

The rinsing stroke (S200) repeats water supply, drainage, and dehydration, and it can be said that rinsing is performed twice according to the number of such repetitions, and three or four times. In addition, the dehydration may be performed in the same order as the dehydration stroke (S300) described above. However, the RPM and the departure time in the departure may be less than the dehydration stroke (S300).

Therefore, when the time saving option is selected, it is preferable that the escape from the rinse stroke is omitted.

On the contrary, if the intensive washing option is selected, the number of rinsing cycles in the rinsing cycle can be increased by one time or the time required for the washing stroke can be increased. Of course, it is also possible to have both increased.

Such a time management option may be very convenient as the user may manage time while satisfying the purpose of a particular course.

The present invention may be practiced in various forms and is not limited to the above-described embodiment. Therefore, if the modified embodiment includes the components of the claims of the present invention will be considered to belong to the scope of the present invention.

Included in the Detailed Description of the Invention.

1 is a perspective view of a washing apparatus to which an embodiment of the present invention can be applied;

Figure 2 is a schematic diagram showing a variety of drum driving motion that can be utilized in the control method of the laundry machine of the present invention;

3 is a detail view of the step motion of FIG. 2;

4 is a detail of the scrub motion of FIG. 2;

5 is a graph comparing the washing power and vibration level of each motion shown in FIG. 2;

6 is a flowchart of a control method according to an embodiment of the present invention.

≪ Description of reference numerals &

110: cabinet 120: tub

130: drum 140: motor

Claims (26)

Selecting a course to be driven among a plurality of driving courses by a user; A washing administration step in which washing is performed by driving the drum such that a motion (drum driving motion) in which laundry flows in the drum is changed according to the selected course; Rinse administration step of rinsing; And Control method of a laundry machine comprising a dehydration administration step that the dehydration is performed. The method of claim 1, The plurality of driving course is a control method of a laundry machine, characterized in that provided according to the type of laundry. The method of claim 2, The washing administration step is a control method of the washing apparatus comprising supplying the washing water and detergent to the tub or drum to dissolve the detergent in the washing water. The method of claim 3, wherein And driving the drum to change the drum driving motion in the water supply step according to the selected course. The method of claim 3, wherein And the drum driving motion is a scrub motion, a step motion, or a combination of these sequences according to the selected course. The method of claim 2, The washing administration step is a control method of a laundry machine, characterized in that it comprises a sieve step for supplying the wash water and detergent liquid to the laundry. The method of claim 6, The drum driving motion in the coat step comprises a rolling pattern control method of the washing apparatus. The method of claim 7, wherein The coating step comprises a circulating step of circulating the washing water in the tub and the detergent solution is supplied to the laundry in the drum. The method of claim 8, And said circulation step is performed when said drum drive motion is at least a filtration motion. The method of claim 9, And the rolling motion is performed after performing the filtration motion in the circulation step. The method of claim 6, The washing administration step is a control method of a laundry machine comprising a main washing step of washing the laundry by driving the drum after the sieve step. The method of claim 11, The washing administration step, the washing method comprising a heating step of raising the temperature of the washing water or the ambient temperature in the drum by driving a steam generator or tub heater after the washing step before the main washing step . The method of claim 11, The drum driving motion in the main washing step comprises a tumbling motion. The method of claim 13, The drum driving motion in the main washing step is a control method of a washing apparatus, characterized in that for driving the drum to change the drum driving motion according to the selected course. The method of claim 2, The plurality of driving courses control the laundry machine, characterized in that each of the driving course (cotton coruse, mix course and synthetic course) is provided for the laundry of the cotton material, synthetic laundry and the laundry of the material is mixed Way. The method of claim 15, The drum driving motion in the washing administration step of the cotton course comprises a rolling motion control method. The method of claim 15, The drum driving motion in the washing administration step of the synthetic fiber course control method of a laundry machine, characterized in that it comprises a swing motion. The method of claim 15, The drum driving motion in the washing administration step of the mixing course control method of the washing apparatus comprising a sequence combination motion of rolling motion and swing motion The method of claim 15, The preset value is at least one of the cotton RPM, the synthetic fiber course, and the blending course at least one of drum RPM in dewatering stroke, running time, and running rate (on / off ratio of the motor driving the drum). Method of controlling a washing machine characterized in that large.  The method of claim 15, The washing administration step includes a water supply step of dissolving the detergent in the wash water by supplying the wash water and detergent in a tub or drum, The drum driving motion in the water supply step is a scrub motion in the cotton course, a step motion in the synthetic fiber course and the mixing process of the scrub motion and step motion in the mixing course control method of the washing machine. The method of claim 20, The drum driving in the rinsing stroke step is controlled by a tumbling motion at a higher level than the level of the washing stroke irrespective of the selected course. The method of claim 1, Control method of the laundry machine, characterized in that the step of detecting the amount of water before the washing administration. The method of claim 22, The drum driving motion in the water supply step of supplying the washing water and detergent to the drum to dissolve the detergent in the washing water according to the detected amount of water is controlled differently. The method of claim 23, The dehydration administration step is a control method of a laundry machine, characterized in that the drum is driven in a step motion is terminated by the step of foaming. The method of claim 1, The control method of the washing apparatus, characterized in that the time management is selected to reduce or increase the overall course operating time by varying the time required for at least the washing administration and rinsing administration before the washing administration. The method of claim 25, When the course operation time is reduced in the time management selection step, the departure from the rinsing stroke is omitted, and when the course operation time is increased, the washing stroke time and the number of rinsing strokes are increased.

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