KR20180089965A - Control Method for Laundry Treating Apparatus - Google Patents

Abstract

The present invention relates to a method to control a clothes treatment apparatus, which differently controls either or both of the revolutions per minute (RPM) and the rotation time of a drum in accordance with types of clothes. According to the present invention, the method comprises a water supply step of supplying water into a tub; a drum rotation step including an acceleration step of supplying current to a driving unit to accelerate the drum and a maintenance step of controlling the current supplied to the driving unit to maintain the RPM of the drum at a preset reference RPM; a drainage step of draining the water stored in the tub by controlling a drainage unit; a first dewatering step of rotating the drum at a first RPM greater than the reference RPM; and a second dewatering step of rotating the drum at an RPM greater than the first RPM. When the ratio of the amount of the current supplied to the driving unit per unit time in the acceleration step to that in the maintenance step is greater than a reference value, the first dewatering step is performed for a first period of time. When the ratio of the amount of the current supplied to the driving unit per unit time in the acceleration step to that in the maintenance step is equal to or less than the reference value, the first dewatering step is performed for a second period of time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a control method of a clothes processing apparatus.

Generally, a clothes processing apparatus is a concept including a device for washing clothes, a device for drying clothes, and a device capable of performing both washing and drying of clothes. Apparatuses which can be washed in a conventional clothes processing apparatus include a cabinet, a tub in which water is stored in the cabinet, and a drum rotatably installed in the tub to store clothes.

The conventional clothes processing apparatus described above rotates the drum at a high rotation speed for dehydration which is progressed during washing or rinsing of clothes, dehydration which is carried out after washing and rinsing is completed, and the clothes stored in the drum are uniformly distributed along the circumferential surface of the drum If it was not placed and concentrated in some area of the circumference of the drum, a large vibration occurred during rotation of the drum.

In order to minimize the vibration occurring during rotation of the drum for dewatering, conventional clothes processing apparatuses measure the vibration of the drum while rotating the drum at a rotation speed lower than the dewatering rotation number before rotating the drum with the dewatering rotation speed set for dewatering . That is, when the measured vibration value is smaller than the vibration reference value, the conventional clothes processing apparatus rotates the drum at the dehydrating revolution number.

However, since the amount of water that can be absorbed and the discharge speed of water are different depending on the type and volume of the clothes, and the water is continuously discharged from the clothes while the drum is accelerated by the spinning water, There has been a problem that a large vibration may be generated in the drum while the conventional clothes processing apparatus accelerates to the dewatering revolution speed.

The present invention relates to a clothes processing apparatus for judging the type of clothes during the washing or rinsing step before the dehydration step and controlling at least any one of the number of rotations of the drum and the rotation time of the drum depending on the type of clothes And a method of controlling the same.

Another object of the present invention is to provide a control method of a clothes processing apparatus provided with a dehydrating step of controlling the rotation time of the drum in accordance with the type of clothes.

Another object of the present invention is to provide a control method of a clothes processing apparatus provided with a dehydrating step of controlling the number of revolutions of the drum in accordance with the type of clothes.

A method of controlling a clothes processing apparatus comprising a tub for storing water supplied through a water supply unit, a drum provided inside the tub for storing clothes, a driving unit for rotating the drum, and a drain for draining water stored in the tub A water supply step of supplying water to the tub by controlling the water supply unit; An acceleration step of supplying a current to the driving part to accelerate the drum, and a holding step of controlling a current supplied to the driving part so that the rotation speed of the drum is maintained at a predetermined reference rotation speed; A drainage step of controlling the drainage part to discharge water stored in the tub; A first dehydrating step of rotating the drum at a first rotational speed set to be larger than the reference rotational speed; And a second dehydrating step of rotating the drum at a rotation speed set to be larger than the first rotation number, wherein the amount of current per unit time supplied to the driving unit in the acceleration step and the unit amount Wherein when the ratio of the amount of current per unit time is larger than a preset reference value, the first dehydrating step proceeds during the first time, and the amount of current per unit time supplied to the driving unit in the acceleration step, Is less than or equal to the reference value, the first dehydrating step is performed for the second time.

If the ratio between the current per unit time supplied to the driving unit in the acceleration step and the current amount per unit time supplied to the driving unit in the holding step is larger than the reference value, Wherein if the ratio of the current per unit time supplied to the driving unit in the acceleration step and the current amount per unit time supplied to the driving unit in the holding step is less than the reference value in the acceleration step, The drum can be rotated at a third rotation speed which is larger than the rotation speed and smaller than the second rotation speed.

The reference number of revolutions may be set to a number of revolutions at which the garment inside the drum falls from the upper area of the horizontal line passing through the rotation center of the drum to the lower area of the horizontal line.

The reference value may be set differently depending on the amount of clothes stored in the drum.

The amount of current per unit time supplied to the driving unit in the acceleration step may be set to a value obtained by measuring a current amount per unit time supplied to the driving unit when the drum passes the preset reference angle.

The amount of current per unit time supplied to the driving unit in the holding step may be set as an average value of the amount of current per unit time supplied to the driving unit during the holding step.

Wherein the step of rotating the drum further includes the step of terminating the rotation of the drum by interrupting a current supplied to the driving unit, wherein the acceleration step, the maintaining step, and the finishing step are sequentially repeated at least twice, Wherein the current amount per unit time supplied to the driving unit in the acceleration step is an average value of the current amount per unit time measured in each acceleration step and the current amount per unit time supplied to the driving unit in the holding step is the average value Lt; / RTI >

The first sensing step is performed before the start of the first dewatering step and the drum is rotated at a rotation speed set to be larger than the reference rotation speed and smaller than the first rotation speed to measure the vibration of the drum And the first dewatering step may be started when the vibration measured in the first sensing step is less than a predetermined first vibration reference value.

The method may further include repeating a clockwise rotation and a counterclockwise rotation of the drum when the vibration measured in the first sensing step is not less than the first vibration reference value.

The second sensing step is performed after completion of the first dehydrating step and the drum is rotated at a rotation speed set to be larger than the reference rotation speed and smaller than the first rotation speed to measure the vibration of the drum And the second dewatering step may be started when the vibration measured in the second sensing step is less than a predetermined second vibration reference value.

The present invention relates to a control method of a clothes processing apparatus for judging the type of clothes in a washing or rinsing step preceding a dehydrating step and controlling at least one of the number of rotations of the drum and the rotation time of the drum depending on the type of clothes There is an effect of providing a method.

The present invention also provides a control method for a clothes processing apparatus provided with a dehydrating step of controlling the rotation time of the drum in accordance with the type of clothes.

The present invention also provides a control method for a clothes processing apparatus provided with a dehydration step of controlling the number of revolutions of the drum in accordance with the type of clothes.

Fig. 1 shows an example of a clothes processing apparatus of the present invention.
Fig. 2 to Fig. 5 show an example of a control method of the clothes processing apparatus of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the present invention is not limited to the details of the embodiments described below, .

1, the clothes processing apparatus 100 of the present invention includes a cabinet 1, a tub 2 provided inside the cabinet 1 to provide a space for storing water, And a drum (3) provided for storing clothes.

The cabinet 1 may be provided to form an outer appearance of the clothes processing apparatus. The cabinet 1 has a front door 11 and a door 15 for opening and closing the door. do.

A control panel for controlling the clothes processing apparatus 100 may be provided on any one of the front surface 11 of the cabinet and the door 15. The control panel may include an input unit and a display unit. The input unit is a means for the user to input a control command to the control unit 9, and the display unit is means for displaying a control command selectable by the control unit 9 or an execution process of a control command selected by the user.

The tub 2 is provided with a tub body 21 having a hollow interior and the tub body 21 can be fixed to the inside of the cabinet 1 through a tub supporting portion . The tub supporting portion may include a spring 251 connecting the upper region of the tub body 21 to the cabinet 1 and a damper 255 connecting the lower region of the tub body 21 to the bottom surface of the cabinet. have.

A tub inlet 23 communicating with the inlet 13 is provided on the front surface of the tub body 21 (the surface facing the inlet). The inlet port 13 and the tub inlet port 23 may be connected to the gasket 231 to prevent the water stored in the tub body 21 from leaking to the outside of the tub body.

The tub body 21 is supplied with water through the water supply unit and the water stored in the tub body 21 is discharged to the outside of the cabinet 1 through the drainage unit. The water supply unit may include a water supply pipe 211 connecting the water supply source and the tub body 21 and a water supply valve 213 for opening or closing the water supply pipe by the control unit.

The drainage unit may include a drain pipe 215 for communicating the tub body 21 with the outside of the cabinet 1 and a pump 217 for moving the water inside the tub body 21 along the drain pipe.

The drum 3 may be provided with a cylindrical drum body 31 which is hollow inside and can be positioned inside the tub body 21. A drum inlet 33 communicating with the tub inlet 23 is provided on the front surface of the drum body 31. Therefore, the user can insert the garment into the drum body 31 through the inlet 13, the tub inlet 23, and the drum inlet 33 after opening the inlet 13 with the door 15.

The drum body 31 is provided with a plurality of through holes 35. So that water supplied to the tub body 21 can be supplied into the drum body 31.

The drum body 31 is rotated by the driving unit 37. The driving unit includes a stator 371 fixed to the back surface of the tub body 21 and forming a rotating field when current is supplied, A rotor 373 rotating by a rotating magnetic field may be provided as a rotating shaft 375 which penetrates the back surface of the tub body 21 and connects the drum body 31 and the rotor 373.

The rotor 373 is provided with a permanent magnet 374 so that the N pole and the S pole are alternately exposed. Therefore, when the control unit 9 supplies current to the stator 371 to form a rotating system, the rotor 373 rotates by the force that the permanent magnets 374 move along the rotating system, The rotation shaft 375 and the drum body 31 will rotate when the drum 373 rotates.

Meanwhile, the clothes processing apparatus 100 of the present invention may further include a rotation number sensing unit 5 for sensing the number of revolutions (or rotation speed) of the drum 3. The first sensing unit 5 may be any type of sensing unit that senses the rotational speed of the drum. Referring to FIG. 1, when the first sensing unit 5 rotates the rotor 373, And a sensor that generates different electrical signals when the N pole and the S pole of the first sensing unit 374 pass through the first sensing unit 5. In FIG. In this case, the control unit can determine the number of revolutions or the rotational speed of the drum through the period of change of the electrical signal provided by the first sensing unit 5.

The above-described method of determining the rotating speed of the drum can determine whether or not the clothes are concentrated in a part of the drum (unbalanced state of the drum) through the deviation of the speed occurring during one rotation of the drum 3 .

When the drum rotates in a state where clothes are concentrated in a part of the inner space of the drum body 31, the drum has the fastest speed when passing through the lowest point of the rotary locus, and the slowest Speed. On the other hand, as the state of the garment is concentrated in a certain region of the drum body (the greater the degree of unbalance), the speed at the time of passing through the lowest point of the rotation locus and the variation in speed at the time of passing through the peak, There is a tendency. Therefore, when the control unit is provided to compare the deviation of the speed generated during one rotation of the drum body sensed through the first sensing unit 5 with the reference deviation measured experimentally according to the degree of unbalance, And the magnitude of the vibration generated in the drum.

Further, the present invention may include a current amount sensing unit 7 (second sensing unit) for sensing the amount of current per unit time supplied to the stator 371. The second sensing unit 7 is provided to transmit the amount of current per unit time supplied to the stator 371 to the controller 9.

When the second sensing unit 7 is provided, the present invention can determine the degree of unbalance generated in the drum or the magnitude of vibration generated in the drum without using the first sensing unit.

The number of revolutions per unit time supplied to the stator is controlled to keep the number of revolutions of the drum constant. As the degree of imbalance generated in the drum becomes larger (as the vibration generated in the drum becomes larger) The variation of the amount of current per hour increases. Therefore, the control unit 9 compares the deviation of the amount of current per unit time supplied to the stator with the reference deviations measured experimentally according to the degree of unbalance while the drum body received from the second sensing unit 7 makes one revolution The control unit 9 may determine the degree of unbalance of the drum body or the magnitude of the vibration generated in the drum.

FIG. 2 illustrates an example of a control method of a clothes processing apparatus having the above-described structure. The control method of the present invention includes a water supplying step S11 for supplying water to the tub 2, 3), a drain step (S19) for draining the water stored in the tub (2) to the outside of the tub after completion of the drum rotating step (S13) for rotating the drum (S40, S70) for removing water from the clothes.

The water supply step S11 is a step in which the controller 9 controls the water supply valve 213 to open the water supply pipe 211.

The drum rotation step S13 is a step of supplying current to the stator 371 to rotate the drum at a predetermined reference rotation speed. FIG. 2 illustrates an example of the drum rotation step S13. The drum rotation step S13 includes an acceleration step S131 of accelerating the drum, a step S131 of rotating the drum at a predetermined time (S133) of holding the drum for a predetermined time, and a finishing step (S135) of finishing the rotation of the drum.

The acceleration step S131 is a step of supplying a current to the stator 371 to accelerate the drum. In the maintenance step S133, the control unit 9 may control the unit supplied to the stator 371 so that the rotation number of the drum can be maintained at the reference rotation number, based on the electrical signal provided by the second sensing unit 7, This is the step of increasing or decreasing the amount of current per hour. In the ending step S135, the controller 9 interrupts the current supplied to the stator or supplies a reverse phase current to the stator to terminate the rotation of the drum.

As shown in FIG. 3, the drum rotation step S13 may be provided so that the acceleration step S131, the maintenance step S133, and the end step S135 are continuously performed at least twice.

4, the reference rotation speed set for execution of the maintenance step S133 is set such that the garment L inside the drum body 31 rotates about the rotation center C of the drum body 31 It is preferable to set the number of revolutions falling from the upper area of the passing horizontal line H to the lower area of the horizontal line H. The drum rotation step S13 is a washing or rinsing process for frictionally separating foreign matter from the clothes by friction between the clothes and the water. Therefore, when the clothes fall repeatedly in the drum body 31, Because.

3 and 4 illustrate a drum rotation step in which the reference rotation number is 40 to 50 RPM. In the course of the maintenance step S133, the garment L is moved in the space located below the horizontal line H, The clothes rising to the space located on the upper part of the horizontal line H and the clothes rising to the space located on the upper part of the horizontal line H will be repeatedly dropped by the self weight into the space located below the horizontal line H.

In order for the garment to fall into a space located below the horizontal line in the space located above the horizontal line H in the course of the maintenance step S133, the reference rotation number is set to a rotation number that generates a centrifugal force smaller than 1G .

2, the control unit 9 controls the pump 217 to discharge the water stored in the tub 2 to the outside of the cabinet 1. The drainage step S19 shown in FIG. , S70) is a step of rotating the drum at a rotational speed higher than the reference rotational speed by supplying a current to the stator (371) during the progress of the drainage step (S19) or after completion of the drainage step.

The dewatering step may be performed by executing the first dewatering control (S40) or the second dewatering step (70) according to the amount of water (amount of water contained in the garment) of the clothes measured during the course of the drum rotation step (S13) .

The method of determining the moisture content of the garment can be variously implemented. The method of determining the moisture content of the garment may be variously performed, and the amount of current per unit time supplied to the stator 371 in the acceleration step S131, An example is a method of determining the amount of water depending on whether the ratio of the amount of current per hour is less than a preset reference value.

That is, the present invention is characterized in that the ratio of the amount of current per unit time X1 supplied to the stator 371 in the acceleration step S131 to the amount of current per unit time X2 supplied to the stator 371 in the holding step S133 (S40) and the second dewatering step (70) depending on whether the ratio (X1 / X2) is equal to or less than a preset reference value.

In order to measure the amount of current per unit time supplied to the stator 371 during the course of the drum rotation step S13, the control method of the present invention includes a first current measurement step (S15) And a step S30 of comparing the ratio of the amount of current measured in each of the current measuring steps S15 and S17 with a reference value.

In the first current measuring step S15 and the second current measuring step S17, the controller 9 controls the electric current supplied to the stator 371 through the electric signal transmitted by the second sensing unit 7, The amount of current can be determined.

The first current measuring step S15 may be provided to measure the average value of the current amount per unit time supplied to the stator 371 during the acceleration step S131, The amount of current per unit time supplied to the stator 371 may be measured. In the latter case, the reference angle may be set to a value having a lower limit (A1) and an upper limit (A2) as shown in FIG.

The second current measuring step S17 may be provided to measure an average value of the amount of current per unit time supplied to the stator 371 during the maintenance step S133.

3, if the drum rotation step S13 including the acceleration step S131, the maintenance step S133, and the ending step S135 is performed so as to be continuously performed at least two times, The first current measuring step S15 is set to an average value of the amount of current per unit time supplied to the stator 371 in each acceleration step S131 and the second current measuring step S17 is performed in each maintenance step S133 And may be set to an average value of the amount of current per unit time supplied to the stator 371. [

When the drum rotation step S13 consisting of the acceleration step (S131), the maintenance step (S133) and the end step (S135) is continuously performed at least twice, the first current measurement step (S15) and the 2 current measurement step S17 may be provided so that the amount of current per unit time measured in the acceleration step and the maintenance step of the first drum rotation step is not reflected in the calculation of the average value. So as to increase the accuracy of the current per unit time to be measured through the first current measuring step and the second current measuring step.

2, the ratio (X1 / X2) between the amount of current per unit time X1 measured in the first current measuring step S15 and the amount of current per unit time X2 measured in the second current measuring step S17 Is greater than the reference value (S30), the control method of the present invention executes the first dehydration control (S40). However, if the ratio X1 / X2 of the current per unit time measured in the first current measuring step S15 to the current per unit time measured in the second current measuring step S17 is less than the reference value (S30) The invention control method executes the second dewatering control (S70).

The ratio X1 / X2 of the amount of current per unit time supplied to the stator 371 for the execution of the acceleration step S131 and the amount of current per unit time supplied to the stator 371 for the execution of the holding step S133 is The more water-absorbing clothing, the smaller the tendency (the higher the moisture content, the smaller the tendency).

In the drum rotation step S13, as shown in Fig. 4, the garment moves downward from the upper area of the horizontal line H passing through the rotation center of the drum to the lower area, and the drum rotation step S13 is performed, Since water is supplied to the drum 2, the vibration of the drum due to the drop of the clothes tends to increase as the clothes absorb a lot of water. The increase in the vibration of the drum 3 means that the variation of the amount of current supplied to the stator 371 increases to maintain the drum 3 at the reference rotation speed, The sum of the amount of current per unit time and the average value of the amount of current per unit time supplied to the stator 371 during the step S133 is increased.

As a result, the current per unit time measured in the first current measuring step S15 is small regardless of the water content of the clothes, whereas the current per unit time measured in the second current measuring step S17 is The input amount is significantly larger than that in the case where the garment having a low water content is put into the drum. Therefore, the present invention is characterized in that it is determined whether the ratio of the current per unit time measured in the first current measuring step (S15) and the current amount per unit time measured in the second current measuring step (S17) is less than the reference value, It is possible to judge the kind of the garment (S30, quality determination step).

It is preferable that the reference value is set differently according to the amount of clothing stored in the drum. The setting of the reference value differently according to the amount of replenishment means that the current ratio (X1 / X2) of the reference garment (for example, cotton fabric) is measured by the amount of the specimen and set as the reference value.

On the other hand, the control method of the present invention may further include a step S20 for determining the amount of the waste. As shown in FIG. 2, the SQ determination step S20 should be performed before the SQ determination step S30. The squeezing amount determination step S20 may be performed by comparing the amount of current supplied to the stator 371 with the amount of current measured by the experiment in order to allow the controller 9 to rotate the drum 3 to a predetermined angle .

If it is determined in step S30 that the garment having a low amount of water has been put into the drum (the ratio of the amount of current is larger than the reference value), the dehydrating step executes the first dehydration control step S40. However, if it is determined in step S30 that the garment having a high water content has been put into the drum (the ratio of the amount of current is less than the reference value), the dewatering step executes the second dewatering control (S70).

5, the first dewatering control S40 includes a first dewatering step S43 for rotating the drum for a predetermined first time at a first rotation number set to a value greater than the reference rotation number, And a second dewatering step (S49) for rotating the drum at a second rotation speed greater than the first rotation speed, wherein the second dewatering control (S70) comprises a second time (S73) for rotating the drum while rotating the drum, and a second dewatering step (S79) for rotating the drum at a third rotational speed that is larger than the first rotational speed and smaller than the second rotational speed.

2, the first dewatering step S43 executed in the first dewatering control S40 may include a step of measuring the vibration of the drum in the first sensing step S41, And the second dewatering step S49 may be performed when the vibration of the drum measured in the second sensing step S45 is smaller than a predetermined second vibration reference value.

The first sensing step S41 and the second sensing step S45 may be performed by controlling the electric signals transmitted by the first sensing unit 5 or the second sensing unit 7 while rotating the drum by the vibration measuring rotational speed, (9). The vibration measurement rotation speed may be set to be a rotation speed set for measuring the vibration of the drum, and may be set to be larger than the reference rotation speed and smaller than the first rotation speed. So as to minimize vibrations that can be generated in the drum when rotating the drum at the first rotation speed.

The control unit 9 compares the electric signal (the deviation of the revolution speed, the deviation of the amount of current per unit time supplied to the stator during one rotation of the drum) provided by the first sensing unit 5 with the first vibration reference value S411), it is determined whether or not the first dewatering step S43 proceeds. That is, the present invention executes the first dehydration step (S43) if the vibration measured in the first sensing step (S41) is less than the first vibration reference value. However, if the vibration measured in the first sensing step is equal to or greater than the first vibration reference value, the present invention performs the first sensing step S41 after executing the ball dispersion step (S413, S415). The boll dispersing step may include a step of stopping the rotation of the drum (S413) and a stirring step (S415) of alternately performing the clockwise rotation of the drum and the counterclockwise rotation of the drum.

After the first dehydration step S43 proceeds for a predetermined first time, the controller 9 decelerates the drum rotation speed to the vibration measurement rotation speed and then proceeds to the second sensing step S45 . If the vibration of the drum measured in the second sensing step is less than the second vibration reference value, the present invention executes the second dehydration step (S49). However, if the vibration of the drum measured in the second sensing step is equal to or greater than the second vibration reference value, the present invention re-executes the first sensing step S41 after execution of the fork dispersion step (S413, S415). The second dewatering step (S49) is performed only when the vibration of the drum is within the allowable range, thereby minimizing vibration and noise generated in the clothes processing apparatus during dewatering.

Meanwhile, the first dewatering step (S73) executed in the second dewatering control (70) is performed when the vibration of the drum measured in the first sensing step (S71) for measuring the vibration of the drum is smaller than the first vibration reference value And the second dewatering step S79 executed in the second dewatering control may be executed when the vibration of the drum measured in the second sensing step S75 is smaller than the second vibration reference value. The first vibration reference value and the second vibration reference value may be set to the same value and the second vibration reference value may be set to be smaller than the first vibration reference value.

If the vibration measured in the first sensing step S73 executed in the second dewatering control 70 is equal to or greater than the first vibration reference value or the vibration measured in the second sensing step S75 is equal to or greater than the second vibration reference value (S713) for stopping the rotation of the drum (S713) and a stirring step (S715) for alternately performing the clockwise rotation of the drum and the counterclockwise rotation of the drum (S713, S715 ). The second dewatering control (S70) re-executes the first sensing step (S71) after the ball dispersion step (S713, S715) is completed.

5, the progress time (second time) of the first dewatering step S73 executed in the second dewatering control S70 is performed in the first dewatering step S40 S43) is set to be longer than the proceeding time (first time) of the first dehydration step to minimize the entry time to the second dehydration step.

Let us assume a dehydration step comprising only the first dehydration control (S40). The vibration of the drum measured in the first sensing step (S41) is less than the first vibration reference value because the clothes are relatively uniformly distributed over the entire circumference of the drum or the centrifugal force generated in the clothes relatively uniformly acts on the entire circumferential surface of the drum . However, if there are many clothes having a high moisture content in the drum, the change in weight of the clothes having a high water content is greater than the change in weight of the clothes having a low water content during the first dehydration step (S43) A state in which a force acting on the drum surface is concentrated on a part of the circumferential surface of the drum can be generated).

This may cause a state in which the vibration measured in the second sensing step S45, which is performed after the completion of the first dehydration step S43, is greater than the second vibration reference value. If the vibration of the drum is equal to or greater than the second vibration reference value, the present invention performs the first sensing step S41, the first dehydrating step S43, and the second sensing step S45 after the bubble dispersion step (S413, S415) This has a problem of increasing the progress time of the first dewatering control (S40).

The present invention is characterized in that the progress time (second time) of the first dewatering step (S73) executed in the second dewatering control (S70) is shorter than the progress time (second time) of the first dewatering step (S43) (First time), it is possible to minimize the above-mentioned problem.

On the other hand, if the number of revolutions (third number of revolutions) of the drum set in the second dewatering step S79 executed in the second dewatering control is less than the number of revolutions of the drum set in the second dewatering step S49 (Second rotation speed) is set to be lower than that in the second dewatering step (step S79) to minimize imbalance occurring in the drum (minimization of vibration and noise occurring during the second dewatering step) to be.

The present invention may be embodied in various forms without departing from the scope of the invention. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

100: Clothing processing apparatus 1: Cabinet 11: Front side
13: inlet 15: door 2: tub
21: tub body 211: water pipe 213: water valve
215: drain pipe 217: pump 23: tub inlet
231: Gasket 3: Drum 31: Drum body
33: Drum loading port 35: Through hole 371:
373: rotor 374: permanent magnet 375: rotary shaft
5: first sensing unit 7: second sensing unit 9:

Claims (10)

A method of controlling a clothes processing apparatus comprising a tub for storing water supplied through a water supply unit, a drum provided inside the tub for storing clothes, a driving unit for rotating the drum, and a drain for draining water stored in the tub ,
A water supply step of controlling the water supply unit to supply water to the tub;
An acceleration step of supplying a current to the driving part to accelerate the drum, and a holding step of controlling a current supplied to the driving part so that the rotation speed of the drum is maintained at a predetermined reference rotation speed;
A drainage step of controlling the drainage part to discharge water stored in the tub;
A first dehydrating step of rotating the drum at a first rotational speed set to be larger than the reference rotational speed; And
And a second dehydrating step of rotating the drum at a rotational speed set to be larger than the first rotational speed,
If the ratio between the current per unit time supplied to the driving unit in the acceleration step and the current amount per unit time supplied to the driving unit in the holding step is greater than a preset reference value, the first dehydrating step proceeds during the first time,
Wherein the first dehydrating step is performed for the second time when the ratio of the amount of current per unit time supplied to the driving unit in the acceleration step to the amount of current per unit time supplied to the driving unit in the holding step is less than the reference value A method of controlling a garment processing apparatus. The method according to claim 1,
If the ratio between the current per unit time supplied to the driving unit in the acceleration step and the current amount per unit time supplied to the driving unit in the holding step is larger than the reference value, The drum is rotated,
If the ratio of the current per unit time supplied to the driving unit in the acceleration step and the current amount per unit time supplied to the driving unit in the holding step is less than the reference value, the second dehydrating step is greater than the first rotation number, And the drum is rotated at a third rotation speed smaller than the number of revolutions of the drum. 3. The method according to any one of claims 1 to 2,
Wherein the reference rotation speed is set to a rotation number at which the garment inside the drum falls from the upper area of the horizontal line passing through the rotation center of the drum to the lower area of the horizontal line. 3. The method according to any one of claims 1 to 2,
Wherein the reference value is set differently according to the amount of clothes stored in the drum. 3. The method according to any one of claims 1 to 2,
Wherein the amount of current per unit time supplied to the driving unit in the acceleration step is a value obtained by measuring a current amount per unit time supplied to the driving unit when the drum passes the preset reference angle. 6. The method of claim 5,
Wherein the current amount per unit time supplied to the driving unit in the maintaining step is an average value of current amount per unit time supplied to the driving unit during the holding step. The method according to claim 6,
And the drum rotating step further includes a finishing step of terminating the rotation of the drum by interrupting a current supplied to the driving unit,
Wherein the acceleration step, the maintenance step, and the end step are sequentially repeated at least twice,
Wherein the current amount per unit time supplied to the driving unit in the acceleration step is an average value of the current amount per unit time measured in each acceleration step and the current amount per unit time supplied to the driving unit in the holding step is the average value And a control unit for controlling the clothes processing apparatus. 8. The method of claim 7,
And a first sensing step of proceeding before the start of the first dewatering step and measuring the vibration of the drum by rotating the drum at a rotation speed that is larger than the reference rotation speed and smaller than the first rotation speed,
Wherein the first dehydrating step is started when the vibration measured in the first sensing step is less than a predetermined first vibration reference value. 9. The method of claim 8,
And repeating a clockwise rotation and a counterclockwise rotation of the drum when the vibration measured in the first sensing step is equal to or greater than the first vibration reference value Way. 9. The method of claim 8,
And a second sensing step of proceeding after completion of the first dewatering step and measuring the vibration of the drum by rotating the drum at a rotation speed that is larger than the reference rotation speed and smaller than the first rotation speed,
Wherein the second dehydrating step is started when the vibration measured in the second sensing step is less than a predetermined second vibration reference value.

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