KR20220120364A - a laundry treating apparatus and a control method of the same - Google Patents

Abstract

The present invention relates to a laundry treatment apparatus, capable of receiving a command to change an execution time of a course or option for washing or drying, and extending or shortening the execution time when the command is input, and a control method thereof. The control method of the laundry treatment apparatus of the present invention comprises a step of sensing an amount of a laundry.

Description

TECHNICAL FIELD [0002] A laundry treating apparatus and a control method of the same

The present invention relates to a laundry treatment apparatus and a method for controlling the laundry treatment apparatus.

In general, a clothes treatment apparatus refers to an apparatus capable of washing or drying clothes or the like, or washing or drying clothes. Here, the laundry treatment apparatus may perform only a washing or drying function, or may perform both washing and drying.

Such a clothes treatment apparatus is provided with an arbitrary course or option for washing or drying clothes, and the execution time of the course or option is calculated based on the amount of laundry of the clothes. For example, when the amount of clothes is large, the execution time is set to be relatively long, and when the amount of clothes is small, the execution time is set to be relatively small.

1 is a diagram illustrating a control method for performing an arbitrary course or option of a conventional laundry treatment apparatus. (See Korean Patent Publication Nos. 10-2009-0077097 and 10-2008-0102611, etc.)

FIG. 1(a) is a diagram illustrating a control method in which a conventional laundry treatment apparatus performs an arbitrary course or option.

Referring to FIG. 1A , in the conventional clothes treatment apparatus, a power supply step (s1) of supplying power to the laundry treatment apparatus by inputting a power button (on), and an appropriate course or option are selected from the control panel of the laundry treatment apparatus. It may include a selection step (s2) of selecting, and a starting step (s3) of inputting an execution button for executing the course or option.

When the conventional laundry treatment apparatus is provided as a front load type washing machine having an opening in the front of the cabinet through which clothes are put in, when the starting step s3 is performed, the door lock for fixing the opening to the cabinet Step s4 may be performed.

Thereafter, the conventional laundry treatment apparatus performs a laundry weight sensing step (S5) of detecting the amount of laundry through a current value applied while rotating a drum or the like containing the clothes. When the laundry amount of the clothes is calculated, the control unit of the conventional clothes processing apparatus performs a time display step (S6) of displaying the expected execution time of the selected course or option to the user, and automatically executes the course or option. (S7) is performed.

However, the step of detecting the amount of laundry (S5) and the step of displaying the time (S6) of the conventional laundry treatment apparatus are performed after the starting step (S3) of the user executing a course or option. Accordingly, there is a problem in that the user is forced to input the execution of the course or option without receiving information on the amount of clothing or the expected execution time.

As a result, the user cannot actively control the execution time of the course or option, and the time display step (s6) has a problem in that it cannot perform a role beyond simply displaying simple information at the service level to the user.

Furthermore, in the conventional clothing processing apparatus, even if the execution time displayed in the time display step s6 does not match the user's current intention or situation, it does not give the user room to take active measures such as adding or reducing clothing. There was a problem.

Also, in the conventional laundry treatment apparatus, even if the execution time of the selected course or option does not match the intention, to change the course or option, the course or option can be canceled or changed unless an active action is taken, such as arbitrarily turning off the power of the washing machine again. There was an impossible problem.

This inconvenience is further maximized when the conventional clothing processing apparatus is remotely controlled.

1(b) shows the rotational state of the drum when the conventional laundry treatment apparatus senses the amount of laundry.

Referring to FIG. 1B , in the conventional laundry treatment apparatus, the drum D is rotated in the I direction to detect the amount of the laundry L.

Specifically, the conventional clothes treatment apparatus calculates the weight of the clothes L by measuring a current applied to or output from a driving unit that rotates the drum while rotating the drum D in the I direction.

In a conventional laundry treatment apparatus, when the drum D is rotated to detect the amount of laundry, the clothes L on the bottom surface of the drum rise inside the drum D and then fall in the II direction due to gravity to the inner wall of the drum. can only be separated from

Accordingly, there is a limitation in that the conventional laundry treatment apparatus must align the applied or output current values while continuously rotating the drum D in the I direction for one or more rotations in order to detect the correct weight of the clothes L.

As a result, the conventional clothes treatment apparatus has a problem in that it takes more time to sense the amount of clothes than the time to continuously rotate the drum.

In addition, in the conventional clothes treatment apparatus, since the time required for the weight detection step (S5) is set to be relatively long, the time display step (S6) for displaying the execution time of a course or option cannot be quickly guided to the user.

Therefore, there is a problem in that the conventional clothes treatment apparatus fundamentally blocks the possibility that the user can utilize the laundry amount information or the expected execution time of the clothes to the user.

An object of the present invention is to provide a laundry treatment apparatus capable of immediately guiding a user of an expected execution time of the course or option prior to performing the course or option.

An object of the present invention is to provide a laundry treatment apparatus in which a user can adjust the execution time of a course or option that provides a method for performing a washing operation, a rinsing operation, and a dehydration operation within a predetermined range.

An object of the present invention is to provide a laundry treatment apparatus in which a user can adjust the execution time within an upper or lower limit of an arbitrary course or option.

An object of the present invention is to provide a laundry treatment apparatus capable of changing the execution time of at least one of a washing cycle, a rinsing cycle, and a dehydration cycle when a user changes the execution time of an arbitrary course or option.

SUMMARY OF THE INVENTION An object of the present invention is to provide a laundry treatment apparatus capable of maintaining a washing effect even when a user changes the execution time of an arbitrary course or option.

SUMMARY OF THE INVENTION An object of the present invention is to provide a laundry treatment apparatus capable of maintaining a dehydration effect even when a user changes the execution time of an arbitrary course or option.

The present invention provides a laundry treatment apparatus capable of detecting the amount of laundry while the drum rotates the weight of the clothing in less than one revolution.

In the step of detecting the amount of laundry in the laundry treatment apparatus of the present invention, the drum may be rotated by less than one revolution.

In the rotating step of rotating the drum in the weight sensing step, the clothes may be separated from the inner wall of the drum or the drum may be rotated at an angle at which the arrangement is changed.

In the rotating step, the drum may be rotated in a range of 0 degrees to 90 degrees or less. Since the variable can be removed as the angle becomes smaller, the rotating step can rotate the drum in a range of 10 degrees to 45 degrees or less.

The calculating step of sensing the amount of laundry while the rotating step is being performed or after the rotating step is finished may be performed before the position of the drum is restored.

The rotation step and the calculation step can all be performed within 0.3 seconds to 1 second.

The step of detecting the amount of laundry may further include a displaying step of displaying the weight of the clothes on a display unit. In the step of detecting the amount of laundry, the optional washing course or the execution time of the option may be displayed on the display unit.

The rotating step, the calculating step, and the displaying step may all be performed before the position of the drum is restored.

The rotating step, the calculating step, and the displaying step may all be performed within 0.3 seconds to 1 second.

The method may further include a storage unit in which the weight of the clothing corresponding to the first current value is stored as data, and the calculating step may extract the weight of the clothing from the storage unit.

When the rotating step is performed, it may further include a restoring step of restoring the position of the drum by blocking the power applied to the driving unit, wherein the calculating step also measures the second current value output from the restoring step, You can calculate the weight of clothing.

When the rotating step is performed, the method further includes a reverse rotation step of reversing the drum to restore the position of the drum, wherein the calculating step measures the third current value output from the reverse rotation step to determine the weight of the clothes can be calculated.

The laundry weight detection step may be performed before water is supplied to the tub and after water is drained from the tub.

The present invention has the effect of immediately guiding the user of the expected execution time of the course or option before performing the course or option.

The present invention has an effect that a user can adjust the execution time of a course or option providing a method for performing a washing cycle, a rinsing cycle, and a dehydration cycle within a certain range.

The present invention has the effect that the user can adjust the execution time within the upper or lower limit of any course or option.

According to the present invention, if the user changes the execution time of any course or option, there is an effect that the execution time of one or more of the washing cycle, the rinsing cycle, and the dehydration cycle can be changed.

The present invention has an effect that the washing effect can be maintained even if the user changes the execution time of any course or option.

The present invention has an effect that the dehydration effect can be maintained even if the user changes the execution time of any course or option.

1 illustrates a control method of a conventional laundry treatment apparatus.
2 is a view showing an external embodiment of the laundry treatment apparatus of the present invention.
3 is a view showing an embodiment of the internal structure of the laundry treatment apparatus of the present invention.
4 is a diagram showing a control configuration of the laundry treatment apparatus of the present invention.
5 is a view showing an embodiment of the control panel of the laundry treatment apparatus of the present invention.
6 is a view showing an embodiment of a method for controlling a laundry treatment apparatus according to the present invention.
7 is a view showing another embodiment of the control method of the laundry treatment apparatus of the present invention.
8 is a view showing an additional embodiment of the control method of the laundry treatment apparatus of the present invention.
9 is a view showing an additional control method of the laundry treatment apparatus of the present invention.
10 is a diagram illustrating a laundry weight sensing method of the laundry treatment apparatus of the present invention.
11 is a view showing the rotation angle of the drum when the laundry weight is sensed in the laundry treatment apparatus of the present invention.
12 is a view showing a specific process of detecting the amount of laundry in the laundry treatment apparatus of the present invention.
13 shows an embodiment in which the laundry treatment apparatus of the present invention senses the amount of laundry only by the moment of inertia.
14 is a diagram illustrating an embodiment in which the laundry treatment apparatus according to the present invention senses a current in the driving unit 9 .
15 is a view showing an additional embodiment in which the laundry treatment apparatus of the present invention detects the amount of laundry.
16 is a view showing an additional embodiment in which the laundry treatment apparatus of the present invention detects the amount of laundry.

Hereinafter, embodiments disclosed herein will be described in detail with reference to the accompanying drawings. In this specification, even in different embodiments, the same and similar reference numerals are assigned to the same and similar components, and the description is replaced with the first description. As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, it should be noted that the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and should not be construed as limiting the technical spirit disclosed in the present specification by the accompanying drawings.

Fig. 2 shows an embodiment of the laundry treatment apparatus of the present invention, and Fig. 3 shows the internal structure of the laundry treatment apparatus of the present invention.

In the Cartesian coordinate system shown in the drawings, the positive and negative directions of the x-axis are defined as the front and rear of the laundry treatment apparatus, respectively, and the positive and negative directions of the z-axis are defined as the upper and lower sides of the laundry treatment apparatus, respectively. decide to do In addition, the positive direction of the y-axis is defined as the right side of the laundry treatment apparatus, and the negative direction of the y-axis is defined as the left side of the laundry treatment apparatus.

Referring to FIG. 2 , the laundry treatment apparatus 1 according to the present invention may include a cabinet 10 forming an exterior, and a clothing accommodating part 20 ′ provided inside the cabinet 10 to accommodate clothes.

The cabinet 10 forms the exterior of the clothes treatment apparatus 1 and may include an opening 12 through which clothes can enter and exit and a door 13 for opening and closing the opening 12 . The door 13 is rotatably connected to the front of the cabinet 10 , and the opening 12 may be opened and closed according to the rotation of the door 13 .

Meanwhile, FIG. 2 shows a front rod type laundry treatment apparatus in which the opening 12 and the door 13 of the laundry treatment apparatus 1 of the present invention are formed on the front side of the cabinet 10, but this is only an embodiment. (12) and the door (13) may be provided as a top-load type laundry treatment apparatus formed on the upper surface of the cabinet (10).

When the door 13 is coupled to the opening 12 , the door 13 may be locked so as not to arbitrarily open the opening 12 . The door 13 may lock the opening 12 by a solenoid, direct fastening means, or the like.

The front of the cabinet 10 contains a detergent box 14 that accommodates detergent or fabric softener and is detachably accommodated in the cabinet, and it is possible to input an operation command to the laundry treatment apparatus or to display the state of the laundry treatment apparatus. A control panel 16 may be provided.

The detergent box 14 and the control panel 16 may be disposed above the opening 12 so that the user can easily grip or contact them.

The detergent box 14 is provided to be withdrawn to the front, and can store a powdered detergent or a liquid detergent therein. For example, the detergent box may be a drawer type.

The control panel 16 may be provided on one side of the detergent box 14, and an input unit 18 for receiving an operation command including optional information related to a washing course and washing from a user, and the inputted information and washing information. It may include a display unit 17 for displaying the progress.

The input unit 18 may be a button type or a rotary knob type, and may be provided as a touch panel. The display unit 17 may include a display unit including liquid crystal and a speaker emitting sound, but may be provided in any shape as long as it can display the state of the laundry treatment apparatus 1 , and the input unit 18 ) and may be provided integrally.

Meanwhile, the control panel 16 may be provided with a control unit P for controlling the laundry treatment apparatus 1 .

The controller may receive power from an external power source to control electrical components of the laundry treatment apparatus 1 to be described later.

In this case, since the electric components (hereinafter, the load unit) are connected in parallel to the control unit, each load unit (drive unit, water supply valve, communication module, etc.) can operate independently of each other.

The clothes accommodating part 20 ′ accommodated in the cabinet 10 may include a tub 20 for storing water and a drum 30 rotatably provided inside the tub 20 to accommodate clothes. can

Referring to FIG. 3 , the tub 20 is provided inside the cabinet 10 and may form a space in which washing water is stored. For example, the tub may have a cylindrical shape.

The tub 20 may include a tub inlet 21 through which clothes can be taken out and put in and a tub support part 23 for fixing the tub 20 to the inside of the cabinet 10 . The tub inlet 21 may communicate with the inlet 12 . The tub support part 23 is provided under the tub 20 , and may attenuate vibrations generated in the tub 20 . For example, the tub support may include a damper, a spring, or the like.

The tub 20 may further include a water level sensor 90 for measuring the water level inside the tub on one side. The water level sensor 90 may include an extension pipe extending from the lower end to the upper part of the tub, a diaphragm provided by sealing the upper end of the extension tube, and a sensor detecting the frequency of the dia frame.

In addition, the laundry treatment apparatus 1 of the present invention may further include a vibration sensor 92 for detecting vibrations inside the tub 20 . The vibration sensor 92 may be provided to sense at least one of vibrations in the x, y, and z axes to transmit the state of the inside of the tub to the controller.

The drum 30 is rotatably provided inside the tub 20 and may include a drum inlet 31 through which clothes can be taken out and taken out. For example, the drum may have a cylindrical shape. The drum inlet 31 may communicate with the inlet 12 and the tub inlet 21 . Accordingly, clothes may be introduced into the drum 30 through the inlet 12 , the tub inlet 21 , and the drum inlet 31 in sequence.

Meanwhile, a gasket 19 may be further provided between the inlet 12 of the cabinet 10 and the tub inlet 21 of the tub 20 . The gasket 19 may prevent the washing water inside the tub 20 from leaking into the cabinet 10 , and may prevent vibration generated from the tub 20 from being transmitted to the cabinet 10 . For example, the gasket may be formed of an elastic member.

A plurality of through holes 33 communicating with the tub 20 may be formed on the inner circumferential surface of the drum 30 . Wash water accommodated in the tub 20 may be supplied into the drum 30 through the through-holes 33 , and the wash water in the drum 30 may be supplied into the tub 20 through the through-holes 33 . can be emitted as

Meanwhile, the laundry treatment apparatus 1 of the present invention includes a driving unit 9 coupled to the tub 20 to rotate the drum 30, a water supply unit 70 for supplying wash water into the tub 20, and It may include a drainage unit 80 for discharging the wash water of the tub 20 to the outside.

The drain unit 80 may be provided with a drain pipe 81 communicating with the tub 20, and a drain pump 82 connected to the drain pipe to provide power for draining water to the tub 20. may include more.

The water supply unit 70 may include a water supply pipe 71 for supplying water to the tub 20 and a water supply valve 72 for opening and closing the water supply pipe 71, and the water supply pipe 71 is the detergent box. It may be provided to communicate with (14).

Accordingly, the detergent box 14 may be provided to communicate with the tub 20 to automatically supply detergent to the tub 20 when water is supplied.

Meanwhile, the laundry treatment apparatus 1 of the present invention may further include a circulation unit 80a for circulating the water drained from the tub 20 again. The circulation unit may include a circulation passage 81a connected to both ends of the tub 20 and a circulation pump 82b for providing power to the circulation passage.

The circulation pump 82b communicates with the bottom surface of the tub 20 to pressurize the wash water, and the circulation passage 81a has one side connected to the circulation pump and the other side connected to the gasket 19 to enter the drum. It may be provided to spray washing water.

However, since the above-described circulation flow path and circulation pump are components necessary for spraying the wash water stored in the tub, the case of spraying the wash water into the drum through the jet water supply passage connected to the water supply source outside the cabinet is excluded. it is not

That is, if one side of the jet water supply passage is connected to a water supply source, and the other side is connected to the tub and provided with a nozzle capable of spraying wash water into the drum, the washing water can enter the drum during the filtration motion and the squeeze motion. will be able to spray

Also, the laundry treatment apparatus 1 of the present invention may further include balancers 51 and 53 for damping vibrations generated in the drum 30 . The balancers 51 and 53 may remove the eccentricity of the drum 30 caused by the clothes being biased to one side inside the drum 30 . That is, the balancers 51 and 53 can attenuate the unbalance of the drum 30 by moving to a specific position under the control of the microcomputer.

In this case, the balancer may be provided at the front and rear of the drum 30 , respectively, or only at any one of the front and rear of the drum 30 . For example, the balancer may include a front balancer 51 and a rear balancer 53 provided at the front and rear of the drum 30 , respectively. The balancers 51 and 53 may be a ball balancer, a liquid balancer, or the like.

The driving unit 9 is provided outside the tub 20 , and may be coupled to or through the rear surface of the tub 20 to be connected to the drum 30 . The driving unit 9 is fixed to the rear surface of the tub 20 and may convert electrical energy into mechanical energy. That is, the drum 30 can be rotated by receiving a current from the outside.

The driving unit 9 includes a stator 91 that generates a magnetic field, a rotor 93 that rotates by the magnetic field inside the stator 91, and a drum 30 and It may include a rotation shaft 95 connecting the rotor 93 .

The driving unit may be a brush-less direct current (BLDC) motor. In this case, the stator 41 may be a coil and the rotor 93 may be a permanent magnet. Meanwhile, a rotation shaft bearing 25 for rotatably supporting the rotation shaft 95 may be further provided on the rear surface of the tub 20 .

4 shows the configuration of a control unit for controlling a load according to the present invention.

The control unit P may be provided on a control panel or the like to receive a command to operate the laundry treatment apparatus through the input unit 16 to perform a washing course and options. That is, the control unit P controls the water supply valve 72 , the drain pump 82 , and the driving unit 9 using the water level information detected by the water level sensor 90 while performing the determined washing course and options. may be provided to do so.

In addition, the control unit P may provide the current state of the laundry treatment apparatus through the display unit 17 and control the vibration of the drum through the current value applied to the vibration sensor 92 or the driving unit 9 . It may be provided to detect.

On the other hand, the control unit (P) is a parallel arithmetic unit (P1) capable of receiving various signals and processing the signal value of the vibration sensor 92, the current value applied to the driving unit 40, the RPM of the drum 30, etc. ) may be further included.

In addition, the control unit (P) stores the data value processed by the parallel computing device, stores an algorithm capable of operating the parallel computing device (p1), or various electricity input to the parallel processing device (P1) A storage unit P2 capable of storing a signal may be further included.

The controller P of the present invention may implement an artificial neural network learning logic for generating an artificial neural network with the parallel computing device P1 and the storage unit P2. The artificial neural network may be used to derive one consistent result by combining and analyzing a plurality of factors.

The conventional control unit has a problem in that it has no choice but to derive one output value from one input value. However, since the laundry treatment apparatus of the present invention can utilize two or more signals through the parallel computing device P1, necessary information can be obtained more accurately than when using one piece of information.

Meanwhile, in the storage unit P2, a plurality of courses or options for operating the laundry treatment apparatus may be stored in advance. The plurality of courses or options consists of a combination of a method or sequence of operating the water supply valve 72, the driving unit 9, and the drain pump 82 so as to perform a washing cycle, a rinsing cycle, and a dehydration cycle, and operating strength. can

The storage unit P2 may store data such as a table, etc., in which a current value applied or output to the driving unit 9 and the amount or quality of clothes can be matched.

In the storage unit P2, estimated times of a plurality of courses or options corresponding to the laundry amount of the clothes may be stored as data.

In addition, in the storage unit P2 , an appropriate amount of detergent required to perform each course or option corresponding to the amount of laundry may be previously stored as data. The amount of detergent may be a concept including one or more of laundry detergent, softener, and bleach.

The control unit P may control each component of the laundry treatment apparatus by utilizing various algorithms and data stored in the storage unit P2 .

When the laundry amount of the clothes is sensed, the controller P may calculate one or more of an execution time of an arbitrary course or option for washing the clothes and a required amount of detergent.

5 shows an embodiment of the control panel 16 provided in the laundry treatment apparatus 1 of the present invention.

Only the display unit 17 is provided as a display panel, and the input unit 18 may be provided as a physical button that can be input separately.

The control panel 16 may include a power supply unit 120 that receives a command to supply power to the clothes treatment apparatus 1 .

When the power supply unit 120 is input, power may be supplied to the control panel 16 , and all power may be supplied to the control unit P including the driving unit 9 .

The input unit 18 may further include a selection unit for selecting or changing the washing course or option. The selection units 140 and 160 include a course selection unit ( 140) and an option selection unit 160 provided to receive an input for selecting any one option among arbitrary options for adjusting the intensity and degree of the course.

For example, when the laundry treatment apparatus 1 is provided as a washing machine, the course includes a washing method for removing foreign substances from general clothes or a first course provided as a set thereof, and a washing method for sterilizing the clothes. Alternatively, the set may be classified into a second course, a washing method for removing foreign substances in consideration of the material of the clothes, or a third course of the set.

In addition, the options include a first option for adjusting the washing intensity in the selected course, a second option for adjusting the number of rinses, a third option for adjusting the dehydration intensity, and the water temperature of the tub for accommodating clothes and water. can be classified as a fourth option for determining Controlling the washing intensity and the spin-drying intensity may mean controlling the rpm of the drum, the cycle of changing the rotational direction of the drum, and the like in the washing cycle and the spin-drying cycle.

The first course may be called a daily course because it is a classification of a general course for washing clothes, the second course may be called a hygiene course because it is a classification of a course for sterilization, and the third course may be called a sanitary course. It can be called a customized course because it categorizes a course that considers material, laundry weight, and the like.

When the course selection unit 140 is repeatedly input, a sequentially set or displayed course may be selected.

The course selection unit 140 includes a first course selection unit 141 configured to select any one of the first courses, and a second course selection unit 142 configured to select any one of the second courses. and a third course selection unit 143 provided to select any one of the third courses.

The option selection unit 160 may also be provided such that, like the course selection unit 140 , a course that is repeatedly input and sequentially set or displayed is selected. In addition, the option selection unit 160 includes a first option selection unit 161 for adjusting the washing intensity in the selected course, a second option selection unit 162 for adjusting the number of rinsing, and a method for adjusting the spin-drying strength. It may include a third option selection unit 163 and a fourth option selection unit 164 for determining the water temperature of the tub for accommodating clothes and water. The option selection unit 160 may be provided such that a desired option is selected by sequentially inputting each option selection unit.

The display unit 130 may be provided as a display liquid crystal, or may be provided as a light reflecting light, a speaker emitting sound, and the like. The display unit 130 may include a first display unit 131 for displaying the course selected by the course selection unit 140 and a second display unit 132 for displaying the option selected by the option selection unit 160 . have.

The first display unit 131 may be provided to display the selected course. For example, a portion corresponding to the selected course may be lit, or a name of the course may be expressed on the display unit.

The second display unit 132 may be provided to display the selected option. For example, a portion corresponding to the selected option may be lit, or a name of the option may be expressed on the display unit.

Specifically, the first display unit 131 may be provided in such a way that, when the course selection unit 140 is input, a corresponding course is turned on, and when the course selection unit 140 is input, the corresponding course is displayed on the liquid crystal. It may be provided in such a way as to display or emit sound. The first display unit 131 may be provided as a display panel, or may be provided as a lamp emitting light next to the text in which the course content is written.

When the user clicks on the daily course 141, the general courses are sequentially lit in order, so that the user can recognize the corresponding course.

In addition, when the user clicks on the sanitary course, the courses corresponding to the sanitary course are sequentially lit in sequence, and when the user clicks the customized course, the courses corresponding to the customized course may be sequentially lit.

The second display unit 132 may be provided in such a way that, when the option selection unit 160 is input, the corresponding option is turned on, and when the option selection unit 160 is input, the corresponding option is displayed on the liquid crystal, or It may be provided in a manner that emits sound. The second display unit 132 may be provided as a display panel, or may be provided as a lamp emitting light next to the text in which the option content is written.

The option selection unit 160 may also be repeatedly clicked or touched to light the first, second, third, and fourth options sequentially. Thereby, the user can select the desired option.

Meanwhile, the option selection unit 160 may further include a switch or a touch zone capable of performing additional functions to the laundry treatment apparatus 1 in addition to the washing, rinsing, dehydration, and water temperature.

The option selection unit 160 includes a steam control unit 160a for adding an option for supplying steam to the inside of the clothes treatment apparatus 20 and a reservation unit for pre-determining an operating time of the clothes treatment apparatus 1 ( 160b), an additional setting unit 160d that clicks to add clothes while the clothes treatment device 20 is in operation, and an option to instantaneously increase the drum rpm of the clothes treatment device 20 to form a strong water flow. A turbo part (160e) to add, a turbo drying part (160f) to add an option to supply strong hot air, a wind drying part (160g) to add an option to supply hot or cold air instead of hot air, by rotating only the drum at a constant speed It may further include a time drying unit 160h for adding an option to perform natural drying.

On the other hand, the second display unit 132 may display the details of the option of the course at the moment when the course or option is determined, but when a drying cycle or washing cycle is in progress, or when a reservation setting is performed, or drying A display unit capable of displaying status information of the laundry treatment apparatus 1 may be provided except for a process of inputting a course or an option, such as when the cycle or washing cycle is finished.

The display unit 17 may further include a third display unit 133 for displaying an expected execution time when performing the plurality of courses or options.

When any one of the plurality of courses or options is selected, the third display unit 133 may display the execution time of the course or option to the user according to the laundry amount of the clothes.

In addition, the above-described structure is only an exemplary embodiment, and the control panel 16 includes an input unit 18 for receiving a command to drive the laundry treatment apparatus and a display unit 17 for displaying the state of the laundry treatment apparatus. If it can be provided, it may be provided in any form.

The user may set a desired course or option by inputting the course selection unit 140 or the option selection unit 160 . Also, even if the user does not input the course selection unit 140 or the option selection unit 160 , the standard course or standard option may be preset.

For example, reference values of the standard washing course and washing/rinsing/drying/water temperature may be set as a standard.

A user may select a desired course or option by inputting the course selection unit 140 and the option selection unit 160 , and may wish to perform the standard course or standard option set as a reference. A user may select any one course or option by inputting the course or option into the course selection unit 140 and the option selection unit 160 , and the course selection unit 140 and the option selection unit 160 . ), you can select the standard course or standard option.

The control panel 16 may further include an execution unit 170 that receives a command to execute the selected course or option or a preset standard course or standard option.

When the execution unit 170 is input, the control unit P may lock the door 13 so as not to be separated from the cabinet 10 . A sensing unit for detecting whether the door 13 is locked to the cabinet 10 may be installed in at least one of the door 13 and the cabinet 10 , and the sensing unit is controlled by the control unit p can be controlled.

On the third display unit 133 , the user may select a course or option, or may display a standard course or option execution time.

Meanwhile, the display unit 16 may also be provided to guide the amount of detergent required when performing the plurality of courses or options. The execution time of the course or option varies depending on the amount of laundry. In addition, the amount of detergent for performing a plurality of courses or options may also vary depending on the amount of laundry.

Accordingly, when the control unit P senses the amount of clothing, at least one of the execution time of the course or option and the amount of detergent required for the course or option may be displayed on the display unit 17 .

For example, the expected execution time of the course or option may be displayed on the third display unit 133 , and the required amount of detergent may be displayed on the second display unit 132 .

The laundry treatment apparatus of the present invention may first detect the amount of laundry before the execution unit 170 is input, and display the expected time of the selected course or option and the required amount of detergent on the display unit 16 .

To this end, the controller P of the laundry treatment apparatus of the present invention may be provided to sense the amount of laundry before the execution unit 170 is input.

By controlling the driving unit 9, the control unit P can calculate the laundry amount of clothes through the current applied or output to the driving unit 9, even before the execution unit 170 is input. It is possible to display the estimated execution time of the selected course or option to the user.

Accordingly, the user can be immediately informed of the expected execution time of the course or option before performing the selected course or option. Alternatively, it may be induced to select an option.

In this way, the user can instantly change from the course or option initially selected by the user to the course or option suitable for his or her situation.

In addition, the user can change the course or option while checking the estimated execution time of several courses or options before executing the selected course or option.

In addition, the user may input an appropriate amount of detergent by checking the required amount of detergent suitable for the clothes in the current state for any one course or option among the plurality of courses or options.

Meanwhile, the control panel 16 of the laundry treatment apparatus of the present invention may further include a time adjusting unit 200 capable of changing the execution time of the course or option to be performed.

The time adjusting unit 200 may be provided in such a way that some buttons of the option selection unit 160 are input after the course or option is selected, or it may be provided as a separate button in the control panel 16 . .

For example, when the time adjusting unit 200 is provided as a separate button, the user can extend or reduce the expected execution time of the selected course or option after inputting the time adjusting unit 200 . .

The extension or reduction of the expected execution time may be performed through input of some buttons of the option selection unit 160 .

For example, the execution time may be adjusted by inputting the dehydration 163 option button and the water temperature 164 option button located on the lower part of the third display unit 133 .

6 illustrates an embodiment of a control method for detecting the laundry amount of clothes before input to the execution unit 170 .

When the power supply unit 120 of the laundry treatment apparatus of the present invention is input, power may be supplied to the water supply unit 70 , the driving unit 9 , and the drain unit 80 , and power may also be supplied to the control unit P. have.

The control unit P may be set to detect the amount of laundry of the clothes when the power supply unit 120 is input and power is supplied.

That is, in the laundry treatment apparatus of the present invention, an essential condition for detecting the amount of laundry may be the input of the power supply unit 120 .

Therefore, even when the user opens the door 13 before inputting the power supply unit 120 , then puts clothes into the drum 30 and closes the door 13 , the control unit P controls the The amount of laundry in clothes can be detected immediately.

The controller P may calculate an expected time for performing a specific course or option according to the amount of laundry.

To this end, the control unit P may recognize the estimated time corresponding to the laundry amount of the clothes in the storage unit P2.

In addition, in the storage unit P2, the amount of detergent required when performing an arbitrary course or option on the amount of laundry of the clothes may also be arranged as data. The control unit P may calculate the amount of detergent required when washing the clothes in the course or option in the storage unit P2 .

For example, in the laundry treatment apparatus of the present invention, when the power supply step (A1) of supplying power by inputting the power supply unit 120 of the laundry treatment apparatus and the power supply step (A1) are performed, the drum 30 is A laundry weight detection step (A2) of detecting the laundry weight of the received clothing may be performed.

When the amount of clothes is detected in the step of detecting the amount of clothes (A2), at least one of the laundry amount of the clothes, the expected execution time of the course or option for washing the clothes, and the amount of detergent required for the course or option is displayed on the display unit 16 An information display step (A3) in which one is displayed may be performed.

In the information display step (A3), a preset standard course corresponding to the weight of the clothing or an execution time corresponding to a standard option may be displayed.

The user can check the amount of clothes displayed in the information display step A3, the execution time of a preset course or option, and compare it with his/her own schedule, and check the amount of detergent.

If the user is satisfied with the information displayed in the information display step (A3), the user may input the execution unit 170 . The control unit P may perform an execution input step A6 of detecting that the execution unit 170 is input.

When the execution input step A6 is performed, the control unit P controls the locking unit to lock the door 13 to the cabinet 10 to prevent the door 13 from being arbitrarily opened. have.

In addition, when the execution input step A6 is performed, the controller P may perform one or more of a washing cycle, a rinsing cycle, and a dehydration cycle according to the course or option setting. After the execution input step A6, the procedure of detecting the laundry amount of the clothes may be omitted. Accordingly, it is possible to prevent the overall washing time from being delayed.

Meanwhile, in the information display step (A3), after the user confirms at least any one of the amount of clothing, the execution time of a preset course or option, and the amount of detergent, the course selection unit 140 or the option selection unit 160 is input. A course setting step (A4) may be further performed.

For example, the user may check the laundry amount of the clothes through the course setting step A4 and then input the course selection unit 140 or the option selection unit 160 , and after confirming the execution time, the course selection unit (140) or the option selection unit 160 can be input to change the course or option.

When the course setting step (A4) is performed, the control unit (P) recalculates the expected execution time or detergent amount of the changed course or option corresponding to the laundry amount of the clothing and transmits it to the display unit 16 ( A5) can be performed.

At least one of the expected execution time of the changed course or option and the changed amount of detergent may be displayed on the display unit 16 in the change display step A5.

The user can input the execution unit 170 when it is determined that the expected execution time or the amount of detergent is suitable, and when the expected execution time or the amount of detergent is not suitable, the course selection unit 140 or the option selection unit 160 ) can be re-entered.

The control unit P may perform the execution input step A6 when detecting the input of the execution unit 170, and set the course when detecting the input of the course selection unit 140 or the option selection unit 160 Step A4 and change display step A5 may be performed again.

7 illustrates another control method for detecting the amount of laundry before input to the execution unit 170 of the laundry treatment apparatus according to the present invention.

The control unit P may be provided to detect the amount of laundry of the clothes before the execution unit 170 is input when the opening/closing of the door 13 is sensed. That is, the condition for detecting the laundry amount of the clothes may be opening and closing of the door 13 .

The laundry treatment apparatus of the present invention may perform the opening/closing detection step (B1) of detecting the opening/closing of the door 13 . When the opening/closing of the door 13 is detected in the opening/closing detection step (B1), the control unit P may perform the laundry weight detection step (B2) of detecting the amount of laundry of the clothes, and according to the detected weight The information display step (B3) of displaying one or more of the laundry amount of clothes, the execution time of a preset course or option, and the required amount of detergent may be performed.

After the information display step (B3), the control unit (P) can perform the execution input step (B6) by detecting whether the user inputs the execution unit 170, and the user selects a course or option It is possible to perform the course setting step (B4) and the change display step (B5) by detecting whether to change.

The information display step B3, the course setting step B4, the change display step B5, and the execution input step B6 may be the same as in the above-described embodiment.

The opening and closing of the door 13 may mean that there is a high probability that clothes are put into the drum 30 . Also, the opening and closing of the door 13 may mean that the amount of clothes in the drum 30 is increased or decreased.

Accordingly, upon detecting that the door 13 is opened or closed, the laundry treatment apparatus of the present invention immediately detects the amount of laundry and informs the user of the amount of laundry, the expected execution time or changed execution time of the course or option, and the required amount of detergent. Alternatively, it can guide the amount of changed tax.

8 illustrates an additional control method capable of detecting the amount of laundry before the execution unit 170 is input.

The laundry treatment apparatus of the present invention may be provided to sense the amount of laundry when a user selects a desired course or option from among a plurality of courses or options.

The expected execution time or the amount of detergent required by the user may be the execution time or amount of detergent for a course or option selected by the user. Therefore, when the user selects a course or option, the laundry treatment apparatus of the present invention may be provided to guide the expected execution time or amount of detergent corresponding to the course or option.

On the other hand, the time when the user inputs the course selection unit 140 and the option selection unit 160 is after the power supply unit 120 is input, and the door 13 is opened and closed to put clothes on the drum 30 . It is highly probable that it was after the time it was put in.

In other words, after the input of the course selection unit 140 and the option selection unit 160 , if the user is informed of the expected execution time or detergent amount according to the amount of clothing, the user places the clothing on the drum 30 . Regardless of whether it is a person who has a habit of inputting the power supply unit 120 after inputting, or a person who inputs the power supply unit 120 first and then puts clothes into the drum 30, the user is accurately informed of the expected execution time or amount of detergent. can guide you

To this end, the laundry treatment apparatus of the present invention may perform the course input step C1 of detecting that the course selection unit 140 or the option selection unit 160 is input.

When the control unit P detects that the course selection unit 140 or the option selection unit 160 has been input, the control unit P may perform the laundry weight detection step C2 of detecting the laundry amount of the clothes.

When the laundry weight detection step C2 is performed, the control unit P controls at least any one of the laundry amount of the clothing, the expected execution time of the selected course or option corresponding to the laundry weight, and the amount of detergent for performing the course or option. An information display step (C3) of displaying one on the display unit 16 may be performed.

After the information display step (C3), the control unit (P) may perform the execution input step (C6) of detecting whether the user is input by the execution unit (170), and the user selects a course or option It is possible to perform the course setting step (C4) and the change display step (C5) by detecting whether or not to change.

The information display step (B3), the course setting step (C4), the change display step (C5), and the execution input step (C6) may be the same as in the above-described embodiment.

On the other hand, the laundry weight detection step may be performed to start a course or option before water is supplied to the tub 20 , and after water is drained into the tub 20 , dehydration is performed to perform a dehydration cycle. It may be performed to detect the amount of laundry.

9 is a view showing a further embodiment of the method for controlling the laundry treatment apparatus of the present invention.

The laundry treatment apparatus of the present invention may be configured to additionally detect the laundry weight even after the execution unit 120 is input after the laundry weight is sensed and the course or option is executed.

Accordingly, in the laundry treatment apparatus of the present invention, whether the amount of the laundry is too large to perform the course or option, or the weight of the clothing is excessively measured because the clothing is in a wet state (paste), so that the estimated execution time or the amount of detergent is excessive. You can check whether or not it is marked.

As a result, the laundry treatment apparatus of the present invention not only quickly senses the amount of clothes, but also accurately detects the state of the clothes after that, so that an optimal course or option can be performed.

Referring to FIG. 9( a ), in the laundry treatment apparatus of the present invention, the power input step (E1) in which the power supply unit 120 is input and power is supplied, and the opening/closing detection step (E2) of detecting the opening and closing of the door 13 (E2) ), a laundry weight detection step (E3) of detecting the amount of clothing when input by the power supply unit 120 and opening and closing of the door 13 are detected; An information display step (E4) of displaying the required amount of detergent on the display unit 16 may be performed.

Thereafter, when the course setting step (E5) in which the user sets a desired course or option by inputting at least one of the course selection unit 140 and the option selection unit 160 is performed, the execution time of the changed course or option or A change display step (E6) of displaying the required amount of detergent may be performed.

When a desired course or option is confirmed by the user in the information display step E4 or the change display step E6, the execution unit 170 is input and the execution input step E7 in which the course or option is executed may be performed. have.

When the course or option is performed, the door 13 may be locked to the cabinet 10 .

The laundry treatment apparatus of the present invention may perform an additional sensing step (E9) of additionally checking the state of the clothes when there is no risk of water, detergent, or clothes being discharged through the door 13 .

The control unit P may perform a final display step E10 of immediately notifying the user of changes in the laundry amount, expected execution time, and required detergent amount of the clothes through the additional detection step E9.

As a result, when a situation change occurs in the information guided to the user in the information display step E4 , the control method corresponding thereto can be modified, and the user can be informed.

As a result, a course or option may be performed more suitable for clothes, and the user may be guided to a changed situation to induce an appropriate response of the user.

For example, in the additional detection step E9 , when the laundry amount value of the clothing is greater than a reference value for performing a course or option, the control unit P provides a course to the user in the final display step E10 . Alternatively, instructions for stopping the execution of the option and partially withdrawing clothes may be displayed on the display unit 16 .

In addition, if the control unit P detects that the clothing is overweight because it is a wet cloth in the additional detection step E9, the estimated execution time or The remaining time may be corrected or the required amount of detergent may be corrected and displayed.

When the execution unit 170 is input, the control unit P may additionally sense the amount of clothes to be worn and recalculate the expected time of the arbitrary course or option.

As described above, the controller may first sense the laundry amount of the clothes before the execution unit is input, and may additionally sense the laundry amount of the clothes when the execution unit is input.

The display unit displays the estimated execution time of the course or option corresponding to the firstly sensed laundry amount before the execution unit is inputted Estimated execution time can be displayed.

When the execution unit is input, the display unit may change and display the estimated execution time of the course or option corresponding to the firstly sensed laundry amount to the estimated execution time of the course or option corresponding to the additionally sensed laundry amount .

The display unit may display the expected execution time of the course or option corresponding to the additionally sensed laundry amount longer than the expected execution time of the course or option corresponding to the firstly sensed laundry amount.

The expected execution time indicated as the second may be continued until the course or option is executed.

Meanwhile, when the control unit P recalculates the course or option, the amount of laundry can be detected more precisely.

To this end, the time for the control unit P to additionally sense the amount of clothes may be set longer than the time for first sensing the amount of clothes.

The control unit P is provided to control the driving unit to sense the amount of clothes, the driving unit is controlled to first intermittently rotate the drum before the execution unit is inputted, and after the execution unit is inputted, the drum may be controlled to rotate intermittently in the second order. In this case, the control unit P may control the driving unit such that the angle or number of rotations of the second intermittently rotating the drum is greater than the angle or the number of rotations of the drum in the first intermittent rotation. That is, when additionally sensing the amount of laundry, the control unit P can precisely detect the amount of laundry through more information and time.

In the laundry weight sensing step, the driving unit rotates less than one revolution during the first intermittent rotation to reduce the laundry weight detection time. However, when the driving unit rotates intermittently for the second time, it rotates more than one revolution to achieve the precision of weight detection.

Meanwhile, the display unit may display that the expected execution time of the course or option corresponding to the additionally sensed laundry amount is the final expected execution time.

10 is a diagram illustrating a method for controlling the weight sensing of the laundry treatment apparatus according to the present invention.

As described above, the laundry treatment apparatus of the present invention may perform the laundry weight sensing step of detecting the laundry weight of the clothes before the execution unit 170 is input. The laundry weight detection step described below may be performed in the laundry weight detection step described above.

The step of detecting the amount of laundry may include a rotating step (D1) of rotating the drum, and a calculation step (D3) of calculating the weight of the clothes by measuring a value of a first current applied or output in the rotating step (D3).

In the laundry treatment apparatus of the present invention, the drum 30 may be rotated by less than one rotation in the rotating step D1. Accordingly, the laundry treatment apparatus of the present invention can sense the amount of laundry before the drum 30 rotates one revolution.

For example, the weight detection step may be completed within 1 second. Therefore, before determining that the user inputs the power supply unit 120 , opens or closes the door 13 , selects the arbitrary course or option, and enters the execution unit 170 , the laundry amount of the clothing, or At least one of the expected execution time based on the laundry amount and the amount of detergent may be displayed on the display unit 17 .

Accordingly, the user can select or change a course or option and input the execution unit 170 while checking the expected execution time and detergent amount.

As a result, the laundry treatment apparatus of the present invention can guide the expected execution time or amount of detergent by quickly detecting the amount of laundry before the user finally decides to perform the course or option selected by the user.

In addition, it is possible to prevent the user from waiting for a long time to confirm the expected execution time of the selected course or option or the appropriate amount of detergent. As a result, washing delay can be prevented.

Meanwhile, in the step of detecting the amount of laundry, the rotating step (D1) is finished before the drum 30 makes one revolution. Accordingly, in the step of detecting the amount of laundry, a restoring step (D2) of returning the drum 30 back to its original position may be performed.

The calculation step (D3) may be performed when the process in which the rotating step (D1) is performed or the rotating step (D1) is finished, and is performed when both the rotating step (D1) and the restoring step (D2) are performed. can

The step of detecting the laundry weight may further include a display step (D4) of displaying the laundry amount of the clothes on the display unit (17) when the calculating step (D3) is completed.

In the display step (D4), only the laundry amount of the clothes may be displayed, the expected execution time of a specific course or option corresponding to the laundry weight may be displayed, and the required amount of detergent required to perform the course or option may be displayed. it might be

The laundry weight detection step may be performed before the execution unit 170 is input, but the same may also be performed in the additional detection step performed after the execution unit 170 is input.

That is, the same step of detecting the amount of laundry may be performed in both the step of detecting the amount of dry laundry for performing the washing cycle and the step of detecting the amount of wet cloth for performing the dehydration cycle. In addition, the step of detecting the amount of laundry may be performed in the step of checking whether the clothes are wet or dry.

11 is a view showing an aspect of the laundry weight detection of the laundry treatment apparatus of the present invention.

Referring to FIG. 11A , the clothes may be disposed on the bottom surface of the drum 30 due to their own weight.

Referring to FIG. 11(b) , when the laundry weight sensing step is performed and the rotating step D1 is performed, the drum 30 may rotate until one rotation is performed.

In the rotating step (D1), the drum 30 may be rotated up to an angle at which the clothes are separated from the inner wall of the drum or the arrangement is changed. Accordingly, it is possible to prevent unnecessary load or impact from being transmitted to the driving unit 9 while the position of the clothes is changed inside the drum 30 . Accordingly, the control unit P may accurately calculate the load of the clothes through the current value applied or output to the driving unit 9 .

For example, in the rotating step (D1), the drum may be rotated in a range of 0 degrees to 90 degrees or less.

However, as the rotation angle of the drum 30 is smaller, the time required for the controller P to detect the amount of the clothes may be shortened, and the error in detecting the weight of the clothes may be reduced. Therefore, in the rotating step (D1), it is preferable that the drum 30 is rotated in the range of 10 degrees to 45 degrees or less.

12 is a diagram illustrating a laundry amount sensing calculation method of the laundry treatment apparatus of the present invention.

12(a) and 12(b), when the weight sensing step is performed, the control unit P may rotate the drum 30 in less than one revolution through the rotating step D1. have. In the calculating step D3, the control unit P may calculate (process) the laundry amount of the clothes by measuring the current applied or output to the driving unit 9 in the rotating step D1.

The controller P may use the formula Te=Jdw/dt+Bw+mgrsinΘ to detect the laundry amount.

Te is a torque value applied to the driving unit 9 and corresponds to I (current value) X K (drive unit constant). That is, since the driving unit constant k is an intrinsic value of the driving unit 9 itself, the control unit P may calculate a torque value applied to the driving unit 9 when the current value I is sensed.

At this time, in the case of mgrsinΘ to sinΘ, as the rotation angle of the drum becomes smaller, it exponentially decreases, so it can be sufficiently neglected if it is between 15 degrees and 90 degrees or between 10 degrees and 45 degrees.

In addition, Bw is a friction torque, and when the drum 30 rotates, B becomes very small, so it can be neglected.

As a result, only the expression Te = Jdw/dt can be left. At this time, since dw/dt is the angular acceleration for rotating the drum, the control unit p may sense the angular acceleration when rotating the drum in the rotating step (d1). The angular acceleration can also be directly calculated through the current value applied to the driving unit 9 . A method of calculating the angular acceleration as the current value will be described later.

Therefore, when the current value is measured, since both the torque value Te and the angular acceleration dw/dt applied to the driving unit 9 can be calculated, the moment of inertia J can be calculated.

As a result, the laundry treatment apparatus of the present invention can detect the moment of inertia (J) and immediately sense the amount of laundry of the clothes.

13 is a diagram illustrating a process in which the laundry treatment apparatus of the present invention calculates the amount of laundry using the moment of inertia.

Data describing the relationship between the moment of inertia and the laundry amount may be stored in the storage unit P2 .

When the weight of the clothing is determined, a moment of inertia generated when the clothing rotates on the drum 30 can be detected, and when the moment of inertia is determined, the weight of the clothing can be detected.

For example, if the control unit P detects the moment of inertia as 55000 in the calculation step D3, when the drum 30 is rotated counterclockwise, the amount of laundry can be determined as 2 kg, When the drum 30 is rotated clockwise, it can be determined as 3 kg.

In this way, the control unit p calculates the moment of inertia stored in the storage unit p2 and the weight of the clothes based on the diameter of the drum 30 and the rotation direction of the drum 30, and the like, through the data of the clothes. The amount of laundry can be detected immediately.

As a result, the control unit P can sense the amount of clothes in the clothes by sensing only the current applied or output in the rotating step D1. That is, the operation step D3 may be performed while the rotation step D1 is being performed or the moment the rotation step D1 ends.

As a result, the rotation step (D1) and the operation step (D3) can be all performed before the position of the drum 30 is restored to its original position. That is, the operation step (D3) may be already completed before the restoration step (D2) is finished.

As a result, the rotating step D1 and the calculating step D3 can all be performed within 0.3 seconds to 1 second, and the laundry weight detection step itself can be performed within 0.3 seconds to 1 second.

Therefore, the control unit P can detect the amount of laundry so quickly that the user hardly feels the time for detecting the weight, and guide the execution time of the selected course or option.

Meanwhile, when the laundry amount is detected in the calculation step D3, the control unit P may calculate and display the execution time or detergent amount of a course or option corresponding to the laundry amount almost simultaneously.

As a result, the rotating step (D1), the calculating step (D3), and the displaying step (D4) can all be performed before the position of the drum is restored.

Therefore, the rotating step D1, the calculating step D3, and the displaying step D4 can all be performed within 0.3 seconds to 1 second.

14 shows a basic structure in which the control unit P measures the current value of the driving unit 9 .

Referring to FIG. 14( a ), the laundry treatment apparatus 100 of the present invention controls the driving unit 9 by applying a current to the driving unit 9 , and can sense even the current discharged from the driving unit 9 . It may include a control unit (P).

The control unit P controls the driving unit 9 according to a preset course or option, and the driving unit 9 rotates the drum 4 according to the command of the control unit P.

The control unit P operates by receiving an operation signal or a control command from the input unit 14a. The input unit 14a may include a washing course for performing washing, rinsing, and spin-drying operations and an option selection unit. Accordingly, washing, rinsing, and dehydration operations may be performed. Also, the controller P may control to display the washing course, washing time, spin-drying time, rinsing time, or the like, or the current operation state, through the display unit 14b.

The control unit P may control the driving unit 9 to not only rotate the drum 4 but also to change the rotational speed of the drum 4 . Specifically, the control unit (P) is based on at least one of a current detection unit (225) detecting an output current flowing through the driving unit (9) and a position sensing unit (220) detecting a position of the driving unit (230). The driving unit 9 can be controlled. For example, any one of a current detected by the driving unit 9 or a sensed position signal may be fed back to the control unit 210 , and the control unit 210 may appropriately adjust the driving unit 9 according to the feedback signal. It is possible to generate a current signal that can be tightly controlled.

Meanwhile, in the laundry treatment apparatus of the present invention, the position sensing unit 235 may be omitted and the position of the driving unit 9 may be sensed through implementation of a separate algorithm. (aka, sensorless driving unit) The sensorless driving unit 9 is configured such that the control unit P measures the current or voltage output from the driving unit 9 to determine the position of the rotor or stator in the driving unit 9 . can be provided.

Hereinafter, an embodiment in which the control unit P controls the driving unit 9 will be described.

The driving unit P may be provided as a three-phase motor so that the rotation speed can be controlled, for example, it may be provided as a BLDC motor.

Referring to FIG. 14B , the controller P may include an inverter 420 and an inverter controller 430 to control the above-described rotor and stator. In addition, the control unit P may further include a converter 410 for supplying DC power input to the inverter 420 .

That is, the control unit P may simultaneously perform the role of the inverter control unit 430 . Of course, the inverter control unit 430 may be provided separately from the control unit (P). When the inverter control unit 430 outputs a pulse width modulation (PWM) switching control signal Sic to the inverter 420 , the inverter 420 performs a high-speed switching operation to transmit AC power of a predetermined frequency to the rotor 913 . ) and the stator 911 can be supplied.

The laundry treatment apparatus of the present invention may further include a converter 410, an inverter 420, and an inverter controller 430, as well as a DC terminal voltage detector (B), a smoothing capacitor (C), and an output current detector (E). have. In addition, the laundry treatment apparatus of the present invention may further include an input current detection unit (A), a reactor (L), and the like.

The reactor L is disposed between the commercial AC power source 405 (vs) and the converter 410 to perform power factor correction or boosting operation. In addition, the reactor L may perform a function of limiting the harmonic current caused by the high-speed switching of the converter 410 .

The input current detection unit A may detect an input current is input from the commercial AC power source 405 . To this end, as the input current detection unit A, a current transformer (CT), a shunt resistor, or the like may be used. The detected input current is may be input to the inverter controller 430 as a discrete signal in the form of a pulse.

The converter 410 converts the commercial AC power 405 through the reactor L into DC power and outputs it. Although the drawing shows the commercial AC power source 405 as a single-phase AC power source, it may be a three-phase AC power source. The internal structure of the converter 410 also varies according to the type of the commercial AC power source 405 .

Meanwhile, the converter 410 may be formed of a diode or the like without a switching element, and may perform a rectification operation without a separate switching operation. For example, in the case of a single-phase AC power supply, four diodes may be used in the form of a bridge, and in the case of a three-phase AC power, six diodes may be used in the form of a bridge.

As the converter 410, a half-bridge converter in which two switching elements and four diodes are connected may be used, and in the case of a three-phase AC power supply, six switching elements and six diodes may be used. When the converter 410 includes a switching element, a step-up operation, a power factor improvement, and a DC power conversion may be performed by a switching operation of the corresponding switching element.

The smoothing capacitor C smoothes the input power and stores it. In the drawings, one device is exemplified as the smoothing capacitor C, but a plurality of devices may be provided to ensure device stability.

The converter 410 may be connected to the output terminal, but DC power may be directly inputted. For example, direct current power from the solar cell may be directly input to the smoothing capacitor C, or may be input through direct current/DC conversion. Since DC power is stored at both ends of the smoothing capacitor C, it may be referred to as a dc terminal or a dc link terminal.

The dc terminal voltage detector B may detect a dc terminal voltage Vdc that is both ends of the smoothing capacitor C. To this end, the dc terminal voltage detection unit B may include a resistance element, an amplifier, and the like. The detected dc terminal voltage Vdc may be input to the inverter controller 430 as a discrete signal in the form of a pulse.

The inverter 420 includes a plurality of inverter switching elements, and converts the smoothed DC power (Vdc) into three-phase AC power (va, vb, vc) of a predetermined frequency by the on/off operation of the switching elements, and a driving unit (9) can be output. The inverter 420 is a pair of upper-arm switching elements (Sa, Sb, Sc) and lower-arm switching elements (S'a, S'b, S'c) connected in series with each other, and a total of three pairs of upper and lower arms The switching elements may be connected to each other in parallel (Sa&S'a, Sb&S'b, Sc&S'c).

A diode is connected in anti-parallel to each of the switching elements Sa, S'a, Sb, S'b, Sc, and S'c.

The switching elements in the inverter 420 turn on/off the respective switching elements based on the inverter switching control signal Sic from the inverter controller 430 . Thereby, the three-phase AC power having a predetermined frequency is output to the driving unit 9 .

The inverter controller 430 may control a switching operation of the inverter 420 . To this end, the inverter control unit 430 may receive the output current io detected by the output current detection unit E as an input.

The inverter controller 430 outputs the inverter switching control signal Sic to the inverter 420 to control the switching operation of the inverter 420 . The inverter switching control signal Sic is a pulse width modulation (PWM) switching control signal, and is generated and output based on the output current value io detected by the output current detection unit E. FIG.

The control unit (P) may sense the state of the inside of the drum by detecting the output current value (io) detected by the current detection unit (220). In addition, the control unit (P) may detect a state inside the drum based on the position signal (H) sensed by the position detection unit (235). For example, while the drum 40 is rotating, based on the output current value and the current value io of the driving unit 9 , the amount of laundry, the spin rate, the moisture content, etc. may be sensed. In addition, the control unit (P) may detect the amount of eccentricity of the drum (4), that is, the unbalance (UB) of the drum (4). Sensing the amount of eccentricity may be performed based on a ripple component of the current io detected by the current detector 220 or a change amount of the rotation speed of the drum 4 .

In addition, the control unit (P) may sense the state inside the drum by sensing the input current value (is) input to the inverter control unit. The process and calculation method of detecting the state inside the drum through the current value will be described later.

The output current detection unit E may be provided to detect the output current io flowing between the inverter 420 and the three-phase driving unit 9 . The output current detection unit E detects a current flowing through the driving unit 9 . The output current detection unit E may detect all of the output currents ia, ib, and ic of each phase, and may also detect the output currents of the two phases using three-phase balance.

The output current detection unit E may be located between the inverter 420 and the driving unit 9 , and a current transformer (CT), a shunt resistor, or the like may be used for current detection. When the shunt resistor is used, three shunt resistors are located between the inverter 420 and the driving unit 9 , or the three lower arm switching elements S'a, S'b, S'c of the inverter 420 . ), one end may be connected to each.

On the other hand, using three-phase equilibrium, it is also possible that two shunt resistors are used. In addition, when one shunt resistor is used, it is also possible that the shunt resistor is disposed between the above-described capacitor C and the inverter 420 .

The detected output current io is a discrete signal in the form of a pulse, and may be applied to the inverter controller 430 , and an inverter switching control signal Sic is generated based on the detected output current io do. Hereinafter, it is assumed that the detected output current io is the three-phase output current ia, ib, ic.

On the other hand, the three-phase driving unit 9 has a stator and a rotor, and each phase AC power of a predetermined frequency is applied to the coils of the stators of each phase (a, b, c phase), and the rotor rotates. will do

The driving unit 9 is a surface-mounted permanent magnet synchronous motor (Surface-Mounted Permanent-Magnet, Synchronous Motor; SMPMSM), an interior permanent magnet synchronous motor (IPMSM), and a synchronous reluctance motor (Synchronous) Reluctance Motor; Synrm) and the like. Among them, SMPMSM and IPMSM are Permanent Magnet Synchronous Motor (PMSM) applied with permanent magnet, and Synrm is characterized by no permanent magnet.

Meanwhile, when the converter 410 includes a switch element, the inverter controller 430 may control a switching operation of the switching element in the converter 410 . To this end, the inverter control unit 430 may receive the input current is detected by the input current detection unit A. In addition, the inverter controller 430 may output the converter switching control signal Scc to the converter 410 in order to control the switching operation of the converter 410 . The converter switching control signal Scc is a pulse width modulation (PWM) type switching control signal, and may be generated and output based on the input current is detected by the input current detection unit A.

Meanwhile, the position detecting unit 235 may detect the position of the rotor of the driving unit 9 . To this end, the position sensing unit 235 may include a Hall sensor. The sensed rotor position (H) is input to the inverter control unit 430 to be used as a basis for speed calculation and the like.

14( c ) shows an embodiment of a specific circuit structure in which the inverter control unit 430 controls the driving unit 9 . The inverter control unit 430 includes an axis conversion unit 510 , a speed calculating unit 520 , a current command generation unit 530 , a voltage command generation unit 540 , an axis conversion unit 550 , and a switching control signal output unit ( 560) may be included.

The axis conversion unit 510 receives the three-phase output current (ia, ib, ic) detected by the output current detection unit E, and converts it into the two-phase current (iα, iβ) of the stationary coordinate system. 510 may convert the two-phase currents (iα,iβ) of the stationary coordinate system into the two-phase currents (id,iq) of the rotational coordinate system.

The speed calculating unit 520 may calculate the speed based on the position signal H of the rotor input from the position detecting unit 235 . That is, based on the position signal, by dividing with respect to time, it is possible to calculate the velocity. The speed calculator 520 may output the calculated position and the calculated speed based on the input position signal H of the rotor.

)와 속도 지령치(ω*r)에 기초하여, 전류 지령치(i*q)를 생성한 다. 예를 들어, 전류 지령 생성부(530)는, 연산 속도(

)와 속도 지령치(ω*r)의 차이에 기초하여, PI 제어기(535)에서 PI 제어를 수행하며, 전류 지령치(iq)를 생성할 수 있다. 도면에서는, 전류 지령치로, q축 전류 지령치(i*q)를 예시하나, 도면과 달리, d축 전류 지령치(i*d)를 함께 생성하는 것도 가능하다. 한편, d축 전류 지령치(i*d)의 값은 0으로 설정될 수도 있다.The current command generation unit 530, the calculation speed (

) and the speed command value (ω*r), the current command value (i*q) is generated. For example, the current command generation unit 530 may set the calculation speed (

) and the speed command value ω*r, the PI controller 535 may perform PI control and generate a current command value iq. In the drawing, the q-axis current command value (i*q) is exemplified as the current command value, but unlike the drawing, it is also possible to generate the d-axis current command value (i*d) together. On the other hand, the value of the d-axis current command value (i*d) may be set to 0.

On the other hand, the current command generation unit 530, the current command value (i * q) may further include a limiter (not shown) for limiting the level so as not to exceed the allowable range. Next, the voltage command generation unit 540, the d-axis and q-axis current (id,iq) axis-transformed into the two-phase rotational coordinate system in the axis transformation unit, and the current command value (i*) from the current command generation unit 530 , etc. d,i*q), d-axis and q-axis voltage command values (v*d, v*q) are generated. For example, the voltage command generating unit 540 performs PI control in the PI controller 544 based on the difference between the q-axis current iq and the q-axis current command value i*q, and the q-axis current command value (i*q). A voltage setpoint (v*q) can be generated. In addition, the voltage command generator 540 performs PI control in the PI controller 548 based on the difference between the d-axis current id and the d-axis current command value i*d, and the d-axis voltage command value (v*d) can be created. On the other hand, the value of the d-axis voltage command value (v*d) may be set to 0 corresponding to the case where the value of the d-axis current command value (i*d) is set to 0.

On the other hand, the voltage command generation unit 540 may further include a limiter (not shown) for limiting the level so that the d-axis and q-axis voltage command values (v * d, v * q) do not exceed the allowable range. .

On the other hand, the generated d-axis and q-axis voltage command values (v*d, v*q) are input to the axis conversion unit 550 .

)와, d축, q축 전압 지령치(v*d,v*q)를 입력받아, 축변환을 수행한다. 먼저, 축변환부(550)는, 2상 회전 좌표계에서 2상 정지 좌표계로 변환을 수행한다. 이때, 속도 연산부(520)에서 연산된 위치(

)가 사용될 수 있다.The axis conversion unit 550, the position calculated by the speed calculating unit 520 (

) and d-axis and q-axis voltage command values (v*d, v*q) are received and axis conversion is performed. First, the axis transformation unit 550 performs transformation from a two-phase rotational coordinate system to a two-phase stationary coordinate system. At this time, the position calculated by the speed calculating unit 520 (

) can be used.

Then, the axis transformation unit 550 performs transformation from the two-phase stationary coordinate system to the three-phase stationary coordinate system. Through this conversion, the axis conversion unit 1050 outputs a three-phase output voltage command value (v*a, v*b, v*c).

The switching control signal output unit 560 generates a switching control signal (Sic) for an inverter according to a pulse width modulation (PWM) method based on the three-phase output voltage command value (v*a, v*b, v* c) to output

The output inverter switching control signal Sic may be converted into a gate driving signal by a gate driver (not shown) and input to a gate of each switching element in the inverter 420 . Accordingly, each of the switching elements Sa, S'a, Sb, S'b, Sc, and S'c in the inverter 420 performs a switching operation.

Meanwhile, the switching control signal output unit 560 may generate and output an inverter switching control signal Sic in which a two-phase pulse width modulation method and a three-phase pulse width modulation method are mixed in relation to an embodiment of the present invention. have.

For example, to generate and output an inverter switching control signal (Sic) by a three-phase pulse width modulation method in an accelerated rotation section to be described later, and to detect a counter electromotive force in a constant speed rotation section, an inverter using a two-phase pulse width modulation method The switching control signal Sic may be generated and output.

15 illustrates an additional embodiment in which the control unit P detects the amount of laundry.

The laundry treatment apparatus of the present invention may perform the sensing step (F) of detecting the amount of laundry in the drum 4 before performing the washing cycle, before performing the rinsing cycle, and before performing the dehydration cycle.

To this end, the control unit P includes an acceleration step F1 of accelerating the drum 4 , a deceleration step F2 of decelerating the drum 4 , and acceleration of the driving unit 9 during the acceleration step. A laundry weight sensing step (F3) of detecting the laundry amount of the clothes accommodated in the drum may be performed based on the measured value and the deceleration measurement value of the driving unit during the deceleration step.

The laundry treatment apparatus of the present invention senses an acceleration measurement value measured by or applied to the driving unit 9 while accelerating the driving unit 9 , and decelerating the driving unit 9 while decelerating the driving unit 9 . The measured deceleration value measured in or applied to the driving unit 9 is sensed. Thereafter, the amount of clothes contained in the drum 4 is sensed by calculating the measured acceleration value and the measured deceleration value.

The acceleration measurement value and the deceleration measurement value may be a command value applied to the driving unit 9 while driving the driving unit 9, and may be a measurement value measured by the driving unit 9 while driving the driving unit 9 have.

For example, the command value may be a current command value or a voltage command value derived from the PI controller 535 applied to drive the driving unit 9, and the measured value is the position sensing unit 235 or current It may be a current value or a voltage value of the driving unit 9 measured by the sensing unit 225 itself.

Accordingly, in the laundry treatment apparatus of the present invention, the time required for sensing the laundry amount can be greatly reduced by omitting the step of maintaining the driving unit 9 to be driven at a constant speed.

In addition, the laundry treatment apparatus of the present invention can save not only the process of maintaining the driving unit 9 at a constant speed, but also energy and time required for maintaining the constant speed. In addition, in the laundry treatment apparatus of the present invention, the frictional force of the driving unit 9 itself, which must be overcome when the driving unit 9 is maintained at a constant speed, can be completely ignored in the calculation process.

When the control unit P uses the command value when detecting the laundry amount, the control unit P feeds back the actual situation to the driving unit 9 or the actual driving situation of the driving unit 9 . no need to consider Therefore, it can be simple and easy for the control unit P to calculate the laundry amount value. In addition, since the formula for calculating the laundry amount is simplified, the laundry weight value can be obtained quickly.

Specifically, the acceleration measurement value may include the acceleration current value Iq_Acc measured by the driving unit 9 , and the deceleration measurement value may include the deceleration current value Iq_Dec measured by the driving unit 9 . .

The acceleration current value includes a current command value (Iq*_Acc) for rotating the driving unit 9 during the acceleration step, and the deceleration current value is a current command value for rotating the driving unit 9 during the deceleration step. It may contain a value (Iq*_Dec).

On the other hand, when the control unit P uses the measured value when detecting the laundry amount, the actual situation is reflected in the driving unit 9 as it is, so it is advantageous in that the laundry weight value can be accurately obtained.

And, the command value is generated only when the driving unit 9 is driven or power is applied to be actively controlled. Therefore, using the measured value has an advantage in that data for detecting the amount of laundry can be obtained even when the power to the driving unit 9 is cut off or the driving unit 9 is not actively controlled.

In the laundry treatment apparatus of the present invention, power is cut off in the deceleration step F2 to decelerate the driving unit 9 using a power generation braking method or the like. Accordingly, an algorithm for controlling the deceleration step F2 may be omitted, and energy for the deceleration step F2 may be saved.

Furthermore, since the power is cut off in the deceleration step (F2), the voltage command value may be 0. Therefore, according to the present invention, the amount of laundry can be detected by calculating only the current excluding the voltage.

That is, the control method of the laundry treatment apparatus according to the present invention may ignore or not use the voltage command value or the voltage value itself, and use only the current value, so that the calculation formula for detecting the amount of laundry can be provided very simply. Since the calculation formula is simplified, the calculation can be performed quickly and accurately, and the amount of laundry can be accurately detected.

Specifically, data and an algorithm (hereinafter, an arithmetic expression) for calculating the measured acceleration value and the measured deceleration value may be stored in the control unit P. The arithmetic expression may be provided so as not to use a voltage value from the beginning. Due to this, since there is no need to calculate the back electromotive force, the present invention can omit the constant speed rotation step of the driving unit 9 .

For example, the arithmetic expression of the present invention may be provided as follows.

Weight value of the present invention (inertia, Jm, Load_data)

can be calculated in the following way. The P and Ke are constant values of the driving unit 9 itself and can be measured by the control unit P, and the denominator corresponds to the difference between the speed change amount in the acceleration step and the speed change amount in the deceleration step.

The speed change amount may be measured by the control unit P due to the position sensing unit 235, calculated by measuring the time reached until the acceleration or deceleration, or immediately detected by measuring a current or the like.

Accordingly, according to the present invention, the laundry weight value can be calculated immediately by simply measuring the acceleration output current value Iq_Acc at the time of acceleration and the value of the acceleration output current Iq_Dec at the time of deceleration. That is, the acceleration current value includes the acceleration output current value (Iq_Acc) output from the driving unit during the acceleration step, and the deceleration current value includes the deceleration output current value (Iq_Dec) output from the driving unit during the deceleration step it can be seen that

Furthermore, an average value (Iqe_Acc) of the current values measured by the driving unit during the acceleration step may be applied to the acceleration output current value, and the deceleration output current value is an average value (Iqe_Dec) of the current values measured by the driving unit during the deceleration step. ) can be applied.

In any case, the laundry weight can be calculated using only the current value factor, and the voltage value factor can be omitted, thereby simplifying the laundry weight calculation and improving the speed and accuracy of the laundry weight value.

Accordingly, even if the time of the acceleration step is very short or the time of the acceleration step is very short, the laundry weight can be accurately detected, and thus the time required for detecting the laundry weight itself can be further reduced.

On the other hand, the laundry weight sensing apparatus of the present invention measures the laundry weight by decelerating immediately after acceleration. Therefore, the time itself for measuring the amount of laundry is very short, and the clothes inside the drum 4 cannot move or flow during this time. Accordingly, since the amount of laundry can be sensed in a short time when the state of the clothes does not change, the accuracy of calculating the amount of laundry can be further improved.

On the other hand, the formula applied to the weight sensing of the present invention uses the difference between the current value in the acceleration phase and the current value in the deceleration phase. Accordingly, the frictional force of the driving part in the acceleration step and the frictional force of the driving part in the deceleration step are equal to each other, so the current compensation equation considering the frictional force cancels each other out. Therefore, in the method for controlling the weight sensing of the laundry treatment apparatus of the present invention, the frictional force of the driving unit 9 does not need to be taken into account, so the process of correcting or tuning the frictional force can be omitted. In addition, since the present invention does not use a voltage value, it is possible to omit the process of compensating for or tuning an error in the voltage value, and omitting the constant velocity process, thereby compensating or tuning the movement of clothes and the friction force of the driving unit 9 The process can be omitted. As a result, in the method of controlling the amount of laundry in the laundry treatment apparatus of the present invention, the amount of laundry is derived immediately after the current value is substituted, and since there is no procedure for compensating or tuning the amount, the amount of laundry can be detected very quickly and accurately.

Accordingly, the amount of load required for the control unit P can be reduced, the control unit P can be replaced with a relatively simple configuration, or the performance of the control unit P can be utilized in other ways.

On the other hand, as can be seen from the above formula, the measured acceleration value may further include the amount of speed change in the acceleration step F1, and the measured deceleration value may further include the speed change amount of the deceleration step F2.

The speed change amount of the acceleration step F1 and the speed change amount of the deceleration step F2 are only necessary to find the difference between the inertia of the acceleration step F1 and the inertia of the deceleration step F2, and separate voltage values, etc. may not be required, and further no compensation or tuning process is required.

In more detail, the arithmetic expression is derived by the following arithmetic expression.

At this time, since the laundry amount is calculated based on the difference between the acceleration inertia and the deceleration inertia, the amount of change in the speed is required.

Accordingly, when the acceleration measurement value and the deceleration measurement value are measured in the same RPM section of the drum, the speed change width is the same, so that the calculation can be simplified. That is, it is preferable that the acceleration step (F1) and the deceleration step (F2) share the same speed band.

Meanwhile, in the control method of the laundry treatment apparatus of the present invention, the amount of laundry is sensed using a current command value or a current value measured by the driving unit 9 by performing an acceleration step F1 and a deceleration step F2 .

In this case, since the formula uses a current value, the deceleration step F2 is first performed, and the current value is measured by performing the acceleration step Bb to detect the amount of laundry through the same formula.

On the other hand, the detecting step (F3) is to perform a preparation step (F0) of checking the position of the driving unit 9 to set a reference value capable of performing the acceleration step (F1) and the deceleration step (F2). can In the preparation step F0, the drum 4 may be placed in a stationary state.

The acceleration step F1 may further accelerate the drum stopped in the preparation step FO to a first rpm, and the deceleration step F2 may decelerate the drum from the first rpm. That is, the acceleration step F1 and the deceleration step F2 may be continuously performed. In the deceleration step (F2), the current command value directed to the driving unit 9 in the acceleration step F1 may be lowered or the voltage applied to the driving unit 9 may be cut off, so there is a risk of damage to the control unit P or the circuit. there is no

In this case, the acceleration measurement value and the deceleration measurement value may be measured between the first rpm and a second rpm lower than the first rpm. That is, the amount of laundry can be detected by measuring the current value in the section band including the vertex in the speed graph. This has the advantage of minimizing a situation in which an error may occur because the amount of laundry is sensed by measuring the current value in a continuous situation.

Meanwhile, the measured acceleration value and the measured deceleration value may be measured between a second rpm lower than the first rpm and a third rpm higher than the second rpm and lower than the first rpm. That is, although the section does not include the vertex, the amount of laundry can be detected by measuring the current value in the same speed section band. This has the advantage of improving the accuracy of weight calculation by measuring the stabilized current value because the speed change is the largest at the vertex.

Meanwhile, the first rpm may be set to a lower rpm than a fixed rpm at which the clothes accommodated in the drum 4 are attached to the inner wall of the drum 4 . That is, the first rpm may be relatively lower than the rpm applied in the washing, rinsing, and dehydration processes.

The accelerating step F1 may correspond to the rotating step D1, and the decelerating step F2 may correspond to the restoring step D2. As a result, the restoring step D2 may correspond to the driving unit (9) may be a step in which the control unit (P) actively adds a current so as to rotate in the opposite direction.

The laundry weight detection step (F3) corresponds to the calculation step (D3), and the calculation step (D3) determines the laundry weight of the clothes through the current value of the rotating step D1 and the current value of the restoring step D2. can be detected immediately.

In this case, the process of directly calculating the moment of inertia by the controller P or the process of comparing and extracting the moment of inertia with laundry weight data of clothes stored in the storage unit P2 may be omitted.

The amount of current applied in the rotation step D1 may be defined as a first amount of current, and the amount of current applied in the deceleration step F2 may be defined as a second amount of current. The control unit P may sense the amount of laundry through the first amount of current and the second amount of current.

16 shows another embodiment in which the control unit P detects the amount of laundry.

In the embodiment of Fig. 16, the restoration step (D2) of Fig. 15 is not a deceleration step of applying a current for reversely rotating the drum 30 to the driving unit 9, but cutting off the power applied to the driving unit 9 Thus, it is shown that the driving unit 9 corresponds to the stopping step (F2') in which the speed is reduced while being restored by the weight of the clothes.

The control unit P detects the counter electromotive force generated in the stopping step F2', measures a current value corresponding to the counter electromotive force, and detects the amount of laundry of the clothes through the calculation method shown in FIG.

Also in this case, the process of directly calculating the moment of inertia by the controller P or the process of comparing and extracting the moment of inertia with the laundry amount data of the clothes stored in the storage unit P2 may be omitted.

The amount of current applied in the rotating step D1 may be defined as the first amount of current, and the amount of current applied in the stopping step F2' may be defined as the third amount of current. The controller P may sense the amount of laundry through the first amount of current and the third amount of current.

The present invention may be modified and implemented in various forms, but the scope of the rights is not limited to the above-described embodiments. Therefore, if the modified embodiment includes the elements of the claims of the present invention, it should be regarded as belonging to the scope of the present invention.

1 Clothes handling device
9 drive
10 cabinet
13 door
20 tubs
30 drums

Claims (18)

A method of controlling a clothes treatment apparatus comprising: a drum for accommodating clothes; and a driving unit for rotating the drum;
a laundry weight sensing step of sensing the weight of the clothes;
The weight detection step is
a rotating step of rotating the drum;
a calculation step of calculating the weight of the clothes by measuring the first current applied or output in the rotating step;
The rotating step comprises rotating the drum by less than one revolution. According to claim 1,
The rotating step comprises rotating the drum at an angle at which the clothes are separated from the inner wall of the drum or the arrangement is changed. 3. The method of claim 2,
The rotating step comprises rotating the drum in a range of 0 degrees to 90 degrees or less. 3. The method of claim 2,
The rotating step comprises rotating the drum within a range of 10 degrees to 45 degrees or less. According to claim 1,
The method of claim 1, wherein the rotating step and the calculating step are all performed before the position of the drum is restored. According to claim 1,
The method of claim 1, wherein the rotating step and the calculating step are all performed within 0.3 seconds to 1 second. According to claim 1,
Further comprising a display unit for displaying the weight of the clothes calculated in the calculation step,
The weight detection step is
and a display step of displaying the weight of the clothes on the display unit. According to claim 1,
a storage unit storing an optional washing course or option for washing the clothes and a time for performing the optional washing course or option corresponding to the weight of the clothes;
Further comprising a display unit for displaying the execution time,
The weight detection step is
and a display step of displaying the execution time of the optional washing course or option on the display unit. 9. The method according to claim 7 or 8,
The method of claim 1, wherein the rotating step, the calculating step, and the displaying step are all performed before the position of the drum is restored. 10. The method of claim 9,
The method of claim 1, wherein the rotating step, the calculating step, and the displaying step are all performed within 0.3 seconds to 1 second. According to claim 1,
Further comprising a storage unit for storing the weight of the clothing corresponding to the first current value as data,
wherein the calculating step extracts the weight of the clothes from the storage unit. According to claim 1,
When the rotating step is performed, further comprising a restoration step of restoring the position of the drum by blocking the power applied to the driving unit,
and the calculating step is provided to calculate the weight of the clothes by also measuring the second current value output from the restoring step. According to claim 1,
When the rotating step is performed, it further comprises a reverse rotating step of restoring the position of the drum by rotating the drum in reverse,
The method of claim 1, wherein the calculating step is provided to calculate the weight of the clothes by also measuring the third current output from the reverse rotating step. According to claim 1,
A tub for accommodating the drum and storing water;
a water supply unit provided to supply water to the tub;
Further comprising a drainage unit provided to drain the water of the tub,
The method of claim 1, wherein the step of detecting the amount of laundry is performed before water is supplied to the tub and after water is drained from the tub.
According to claim 1,
Further comprising an execution input step of receiving a command to execute an arbitrary course or option for driving the driving unit,
The method of claim 1, wherein the step of detecting the amount of laundry is performed before the step of inputting execution.
According to claim 1,
Further comprising a power supply step in which a power supply unit for supplying power to the driving unit is input;
The control method of the laundry treatment apparatus, characterized in that when the power supply step is performed, the laundry weight detecting step is performed.
17. The method of claim 16,
Further comprising an open/close detection step of detecting whether a door for opening and closing an opening of a tub or cabinet accommodating the drum has been opened or closed,
The method of claim 1, wherein the laundry weight detection step is performed when at least one of the power supply step and the open/close detection step is performed.
16. The method of claim 15,
The weight detection step is additionally performed after the execution input step,
The number of rotations or rotation angle of the drum in the rotation step performed after the execution input step is
The method according to claim 1, wherein the number of rotations or the rotation angle of the drum in the rotation step performed after the execution input step is set to be greater than that of the drum.

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