KR101702954B1 - Washing machine and method for controlling washing machine - Google Patents

Abstract

The present invention relates to a laundry processing apparatus and a control method of the laundry processing apparatus. A control method for a laundry processing apparatus according to an embodiment of the present invention is a control method for a laundry processing apparatus including a washing tub rotating with a bag inserted therein and a motor for rotating the washing tub. In a calibration mode, Storing at least one of a pop-up reference value, an eccentricity reference value, a speed-up slope reference value, or a speed-down slope reference value based on the current or motor speed flowing in the motor; And determining at least one of the amount of charge, the amount of eccentricity, the rate of the rising gradient, or the rate of the falling gradient based on the stored reference value and the current or motor speed flowing in the motor. As a result, the operation efficiency can be improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a washing machine,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a laundry processing apparatus and a control method for the laundry processing apparatus, and more particularly, to a laundry processing apparatus and a control method for the laundry processing apparatus.

In general, the laundry processing apparatus performs washing using the friction force of the laundry and the washing machine, which is rotated by receiving the driving force of the motor, in a state where the detergent, the washing water and the laundry are put in the drum, so that the laundry is hardly damaged, You can get a washing effect.

It is an object of the present invention to provide a laundry processing apparatus and a control method for a laundry processing apparatus which can improve the operation efficiency.

Another object of the present invention is to provide a laundry processing apparatus and a control method of the laundry processing apparatus which can provide a calibration mode.

According to another aspect of the present invention, there is provided a control method for a laundry processing apparatus including a washing tub rotating with a bag inserted therein and a motor rotating the washing tub, Storing at least one of a pop-up reference value, an eccentricity reference value, a speed-up-slope reference value, or a speed-down slope reference value based on a current or a motor speed flowing in the motor, in a no-load state or a specific load state; Determining at least one of a battery amount, an eccentric amount, a speed increasing inclination, or a speed decreasing inclination based on a stored reference value and a current or a motor speed flowing in the motor, in the operation mode.

According to another aspect of the present invention, there is provided a laundry processing apparatus comprising: a washing tub which is rotated with a bag inserted therein; a motor for rotating the washing tub; A storage unit for storing at least one of a reference value, a reference value for the amount of eccentricity, a reference value for the eccentricity, a reference value for increasing the inclination of the speed, or a reference value for decreasing the inclination of the speed, and a control unit for controlling the motor to rotate in a no- And a control unit for controlling the motor to rotate and determining at least one of a stored amount, an eccentric amount, a speed-up slope, or a speed-down slope based on the stored reference value and the current or motor speed flowing in the motor.

According to the embodiment of the present invention, various reference values to be used in operation can be stored in advance by rotating the motor by no load or the like in the calibration mode. Then, in the operation mode in the following, it is possible to determine an accurate value such as the amount of discharge and eccentricity by using this reference value. As a result, the operation efficiency of the laundry processing apparatus is improved.

In addition, by separately providing the calibration key, the user can easily enter the calibration mode.

Further, by displaying the end of the calibration mode or the calibration mode on the display, the user can easily grasp it.

1 is a perspective view illustrating a laundry processing apparatus according to an embodiment of the present invention.
Fig. 2 is a side cross-sectional view of the laundry processing apparatus of Fig. 1;
3 is an internal block diagram of the laundry processing apparatus of FIG.
4 is an internal circuit diagram of the driving unit of FIG.
5 is an internal block diagram of the inverter control unit of FIG.
6 is a flowchart illustrating a method of controlling a laundry processing apparatus according to an embodiment of the present invention.
Figs. 7 to 11 are diagrams referred to in explanation of the control method of Fig.
12 is a perspective view illustrating a laundry processing apparatus according to another embodiment of the present invention.
13 is a view referred to the explanation of the laundry processing apparatus of Fig.

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

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

FIG. 1 is a perspective view showing a laundry processing apparatus according to an embodiment of the present invention, and FIG. 2 is a side sectional view of the laundry processing apparatus of FIG. 1.

Referring to FIGS. 1 and 2, the laundry processing apparatus 100 according to an embodiment of the present invention includes a dryer or the like for inserting laundry, rinsing and dewatering, The following description will focus on a washing machine.

The washing machine 100 includes a casing 110 forming an outer appearance, operation keys for receiving various control commands from a user, and a display for displaying information on the operating state of the washing machine 100, thereby providing a user interface And a door 113 which is rotatably installed in the casing 110 and opens and closes the entrance holes through which the laundry enters and exits.

The casing 110 includes a main body 111 for forming a space in which various components of the washing machine 100 can be accommodated and a main body 111 provided on the main body 111, And a top cover 112 that forms a bag entrance / exit hole.

The casing 110 is described as including the main body 111 and the top cover 112, but the casing 110 is not limited thereto as long as it forms the appearance of the washing machine 100.

The support rod 135 is described as being coupled to the top cover 112, which is one of the components constituting the casing 110, but is not limited thereto, And that it is possible.

The control panel 115 includes a calibration key 116 for entering a calibration mode, operation keys 117 for operating an operation state of the laundry processing apparatus 100, And a display 118 for displaying the operating state (operation time, etc.) of the laundry processing apparatus 100.

The door 113 opens and closes a draw-in / out hole (not shown) formed in the top cover 112 and may include a transparent member such as tempered glass so that the inside of the main body 111 can be seen.

The washing machine 100 may include a washing tub 120. The washing tub 120 may include an outer tub 124 containing washing water and an inner tub 122 rotatably installed in the outer tub 124 to receive laundry. A balancer 134 may be provided on the upper portion of the washing tub 120 to compensate eccentricity generated when the washing tub 120 rotates.

Meanwhile, the washing machine 100 may include a pulsator 133 rotatably disposed under the washing tub 120.

The driving device 138 is to provide a driving force for rotating the inner tank 122 and / or the pulsator 133. A clutch (not shown) for selectively transmitting the driving force of the drive unit 138 to rotate only the inner tank 122, only the pulsator 133 is rotated, or the inner tank 122 and the pulsator 133 are rotated at the same time .

On the other hand, the driving unit 138 is operated by the driving unit 220 of FIG. 3, that is, the driving circuit. This will be described later with reference to FIG.

Meanwhile, the top cover 112 is provided with a detergent box 114 capable of receiving various detergent such as laundry detergent, fabric softener and / or bleach, (114) and then into the inner tank (122).

A plurality of holes (not shown) are formed in the inner tank 122 so that the wash water supplied to the inner tank 122 flows to the outer tank 124 through the plurality of holes. A water supply valve 125 for interrupting the water supply flow path 123 may be provided.

A drain valve 145 for draining the wash water in the outer tub 124 through the drainage flow path 143 and interrupting the drainage flow path 143 and a drain pump 141 for pumping the wash water may be provided.

One end of the support rod 135 is connected to the casing 110 and the other end of the support rod 135 is connected to the outer tank 124 by the suspension 150. [ do.

The suspension 150 cushions the outer tub 124 to vibrate during the operation of the washing machine 100. For example, the outer tub 124 may be vibrated by the vibration generated as the inner tub 122 rotates. During the rotation of the inner tub 122, the eccentricity of the laundry contained in the inner tub 122, It is possible to buffer vibrations due to various factors such as rotation speed or resonance characteristics.

3 is an internal block diagram of the laundry processing apparatus of FIG.

Referring to the drawings, in the laundry processing apparatus 100, the driving unit 220 is controlled by a control operation of the control unit 210, and the driving unit 220 drives the motor 230. Accordingly, the washing water is rotated by the motor 230 to the washing tub 120.

The control unit 210 receives an operation signal from the operation key 117 and performs an operation. Thus, washing, rinsing and dewatering can be performed.

The control unit 210 may control the display 118 to display a washing course, a total operating time, a washing time, a dehydrating time, a rinsing time, or a current operating condition.

The control unit 210 controls the water supply valve 125 to control the supply of water into the washing tub 120 and controls the drain valve 145 to discharge the water in the washing tub 120.

On the other hand, the control unit 210 controls the driving unit 220 to operate the motor 230. For example, based on the current detection unit 225 for detecting the output current flowing through the motor 230 and the position sensing unit 220 for sensing the position of the motor 230, the driving unit 220 Can be controlled. The detected current and the detected position signal are inputted to the driving unit 220. The present invention is not limited thereto and may be applied to either the control unit 210 or the control unit 210 and the driving unit 220 It is also possible.

On the other hand, the control unit 210 can control to enter the calibration mode at the initial operation, after a predetermined time elapses from the installation, or when an operation signal is input from the calibration key 116. [

The calibration mode is a mode for measuring and storing each reference value used in the laundry processing apparatus operation.

For example, the motor 230 that rotates the washing tub 120 is rotated in a no-load state or a specific load state, and the motor 230 is rotated based on the current (current value or current ripple) or the motor speed (speed value or speed ripple) So that at least one of the inclusion reference value, the eccentricity reference value, the speed-up inclination reference value, or the speed-down inclination reference value can be stored in the storage unit 310.

On the other hand, in addition to the reference value described above in the calibration mode, it is also possible to store the vibration amount reference value of the laundry processing apparatus. To this end, the laundry processing apparatus may include a vibration detecting unit 305 separately. The storage unit 310 may store the vibration reference value sensed by the vibration sensing unit 305. [

The vibration sensing unit 305 senses the vibration of the washing tub 120 in the calibration mode or the operation mode. For this purpose, the vibration sensing unit may be provided in the form of a vibration sensor. The vibration sensing unit 305 may be an acceleration sensor mounted at a position capable of sensing abnormal vibration of the laundry processing apparatus 100 or mounted at a position capable of simultaneously measuring a plurality of abnormal vibrations.

The vibration detecting unit 305 detects the amount of vibration in the vertical direction (vertical direction) that vibrates according to the floor condition in which the laundry processing apparatus is installed, or detects the amount of vibration in the left and right direction . In addition, the vibration detecting unit 305 may simultaneously or selectively detect the amount of vibration generated in the laundry processing apparatus 100 with respect to three axis directions.

The vibration sensing unit 305 may sense the vibration of the washing tub 120 when the bag is not inserted in the washing tub 120 (no load condition) or when the bag is inserted (specific load).

The storage unit 310 may store various reference values measured in the calibration mode. For example, based on the current flowing through the motor or the motor speed, at least one of a pop-up reference value, an eccentricity reference value, a speed-up slope reference value, or a speed-down slope reference value can be stored.

In addition, for example, the vibration amount reference value sensed by the vibration sensing unit 305 can be stored. On the other hand, the amount of vibration may vary depending on the inclination of the floor on which the laundry processing apparatus is installed, the material of the floor, or the like. For example, the higher the strength of the bottom material, the lower the elasticity, the smaller the amount of vibration of the drum.

The control unit 210 can determine the inclusion amount, the eccentric amount, the speed increasing inclination, or the speed decreasing inclination based on the reference value stored in the calibration mode and the current or motor speed flowing in the motor being rotated in the operation mode. In addition, the final vibration amount can be determined based on the vibration amount reference value stored in the calibration mode and the vibration amount detected by the vibration detection unit 305. [

Then, the control unit 210 controls the laundry processing apparatus to operate based on the determined laundry amount, eccentric amount, and the like. As a result, the driving efficiency of the laundry processing apparatus is improved.

On the other hand, when the control unit 210 enters the calibration mode, the control unit 210 may control the display 118 to display an object indicating the calibration mode. At the end of the calibration mode, it is also possible to control the display 118 to display an object indicating the end of the calibration mode. Accordingly, the user can easily grasp the state of the laundry processing apparatus.

The control unit 210, on the basis of the current detector 220, the position signal (H) detected by the detected current (i _o) or position detection unit 235 from, it is possible to detect the state of the laundry treatment machine. For example, while the washing tub 120 rotates, it can sense based on the current value i _o of the motor 230.

The driving unit 220 is for driving the motor 230 and may include an inverter (not shown) and an inverter control unit (not shown). Further, the driving unit 220 may be a concept further including a converter or the like that supplies DC power input to an inverter (not shown).

For example, when an inverter control unit (not shown) outputs a switching control signal (Sic in Fig. 4) of a pulse width modulation (PWM) method to an inverter (not shown), the inverter (not shown) It is possible to supply AC power of a predetermined frequency to the motor 230.

The driving unit 220 will be described later with reference to FIG.

On the other hand, the control unit 210, on the basis of the current detector 220, the position signal (H) detected by the detected current (i _o) or position detection unit 235 from, it is possible to detect poryang. For example, while the washing tub 120 rotates, the laundry amount can be sensed based on the current value (i _o ) of the motor 230.

The control unit 210 may sense the amount of eccentricity of the washing tub 120, that is, the unbalance (UB) of the washing tub 120. [ Such eccentricity detection can be performed based on the ripple component of the current (i _o ) detected by the current detection unit 220 or the rotational speed variation amount of the washing tub 120.

4 is an internal circuit diagram of the driving unit of FIG.

The driving unit 220 according to the embodiment of the present invention includes a converter 410, an inverter 420, an inverter control unit 430, a dc voltage detection unit B, a smoothing capacitor C, And an output current detection unit E. The driving unit 220 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 (v _s ) and the converter 410, and performs a power factor correcting or boosting operation. The reactor L may also function to limit the harmonic current due to the fast switching of the converter 410.

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

The converter 410 converts the commercial AC power source 405, which has passed through the reactor L, into DC power and outputs the DC power. Although the commercial AC power source 405 is shown as a single-phase AC power source in the figure, it may be a three-phase AC power source. The internal structure of the converter 410 also changes depending on the type of the commercial AC power source 405.

Meanwhile, the converter 410 may include a diode without a switching element, and may perform a rectifying operation without a separate switching operation.

For example, in the case of a single-phase AC power source, four diodes may be used in the form of a bridge, and in the case of a three-phase AC power source, six diodes may be used in the form of a bridge.

On the other hand, the converter 410 may be, for example, a half-bridge type converter in which two switching elements and four diodes are connected, and in the case of a three-phase AC power source, six switching elements and six diodes may be used .

When the converter 410 includes a switching element, the boosting operation, the power factor correction, and the DC power conversion can be performed by the switching operation of the switching element.

The smoothing capacitor C smoothes the input power supply and stores it. In the drawing, one element is exemplified by the smoothing capacitor C, but a plurality of elements are provided so that the element stability can be ensured.

For example, when a direct current power from the solar cell is supplied to the smoothing capacitor C (not shown), the direct current power is supplied to the smoothing capacitor C It may be input directly or may be DC / DC converted and input. Hereinafter, the portions illustrated in the drawings are mainly described.

On the other hand, both ends of the smoothing capacitor C are referred to as a dc stage or a dc stage because the dc power source is stored.

The dc voltage detection unit B can detect the dc voltage Vdc at both ends of the smoothing capacitor C. [ For this purpose, the dc voltage detection unit B may include a resistance element, an amplifier, and the like. The detected dc voltage source Vdc can be input to the inverter control unit 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 supply Vdc into a three-phase AC power supply va, vb, vc having a predetermined frequency by on / off operation of the switching element, And outputs it to the synchronous motor 230.

The inverter 420 includes a pair of upper arm switching elements Sa, Sb and Sc and lower arm switching elements S'a, S'b and S'c serially connected to each other, The switching elements are connected to each other in parallel (Sa & S a, Sb & S'b, Sc & S'c). Diodes are connected in anti-parallel to each switching element Sa, S'a, Sb, S'b, Sc, S'c.

The switching elements in the inverter 420 perform ON / OFF operations of the respective switching elements based on the inverter switching control signal Sic from the inverter controller 430. [ Thus, three-phase AC power having a predetermined frequency is output to the three-phase synchronous motor 230.

The inverter control unit 430 can control the switching operation of the inverter 420. [ To this end, the drive controller 430, and can receive the output current (i _o) detected by the output current detector (E).

The inverter control unit 430 outputs the inverter switching control signal Sic to the inverter 420 to control the switching operation of the inverter 420. [ Inverter switching control signal (Sic) is output is generated by a switching control signal of a pulse width modulation (PWM), based on the output current (i _o) detected by the output current detector (E). Detailed operation of the output of the inverter switching control signal Sic in the inverter control unit 430 will be described later with reference to Fig.

An output current detector (E) detects the inverter 420 and the three-phase motor output current (i _o) flowing between (230). That is, the current flowing in the motor 230 is detected. The output current detection unit E can detect all of the output currents ia, ib, ic of each phase or can detect the output currents of two phases using the three-phase balance.

The output current detection unit E may be located between the inverter 420 and the motor 230. For current detection, a current transformer (CT), a shunt resistor, or the like may be used.

Three shunt resistors are placed between the inverter 420 and the synchronous motor 230 or the three lower arm switching elements S'a, S'b, S'c To be connected to each other. On the other hand, it is also possible to use two shunt resistors using three phase equilibrium. On the other hand, when one shunt resistor is used, the shunt resistor may be disposed between the capacitor C and the inverter 420 described above.

The detected output current (i _o) are, as discrete signals (discrete signal) of the pulse type, may be applied to the inverter controller 430, the inverter switching control signal (Sic) based on the detected output current (i _o) Is generated. In the output current detection (i _o) will now be described in that the three-phase output currents (ia, ib, ic) of the.

On the other hand, the three-phase motor 230 has a stator and a rotor, and each phase alternating current power of a predetermined frequency is applied to a coil of a stator of each phase (a, b, c) .

The motor 230 may be, for example, a Surface Mounted Permanent Magnet Synchronous Motor (SMPMSM), an Interior Permanent Magnet Synchronous Motor (IPMSM) A synchronous motor (Synchronous Reluctance Motor; Synrm), and the like. Among them, SMPMSM and IPMSM are permanent magnet applied Permanent Magnet Synchronous Motor (PMSM), and Synrm is characterized by having no permanent magnet.

On the other hand, the inverter control unit 430 can control the switching operation of the switching element in the converter 410 when the converter 410 includes a switching element. For this purpose, the inverter control unit 430 can receive the input current (i _s ) detected by the input current detection unit (A). The inverter control unit 430 may output the converter switching control signal Scc to the converter 410 to control the switching operation of the converter 410. [ The converter switching control signal (Scc) is generated by a switching control signal of a pulse width modulation method (PWM), based on the input current (i _s) to be detected from the input current detecting unit (A) can be output.

Meanwhile, the position sensing unit 235 may sense the rotor position of the motor 230. For this, the position sensing unit 235 may include a Hall sensor. The sensed rotor position H is input to the inverter control unit 430 and used based on speed calculation and the like.

5 is an internal block diagram of the inverter control unit of FIG.

5, the inverter control unit 430 includes an axis conversion unit 510, a speed calculation 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.

The axial conversion unit 510 receives the three-phase output currents ia, ib, ic detected by the output current detection unit E and converts the three-phase output currents ia, ib, ic into a two-phase current iα, iβ in the stationary coordinate system.

On the other hand, the axial conversion unit 510 can convert the two-phase current i?, I? Of the still coordinate system into the two-phase current id, iq of the rotational coordinate system.

)를 연산할 수 있다. 즉, 위치 신호에 기반하여, 시간에 대해, 나누면, 속도를 연산할 수 있게 된다.Based on the position signal H of the rotor input from the position sensing section 235, the speed calculating section 520 calculates the speed

) Can be calculated. That is, based on the position signal, it is possible to calculate the speed by dividing it with respect to time.

)와 연산된 속도(

)를 출력할 수 있다.On the other hand, the speed computing unit 520 computes the position (H) calculated based on the position signal H of the input rotor

) And the calculated speed (

Can be output.

)와 속도 지령치(ω^* _r)에 기초하여, 전류 지령치(i^* _q)를 생성한다. 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(i^* _q)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. On the other hand, the current command generation section 530 generates the current command

(I ^* _q ) on the basis of the speed command value? ^* _R and the speed command value? ^* _R. For example, the current command generation unit 530 generates the current command

The PI controller 535 performs the PI control based on the difference between the speed command value? ^* _R and the speed command value? ^* _R , and generates the current command value i ^* _q . In the figure, the q-axis current command value (i ^* _q ) is exemplified by the current command value, but it is also possible to generate the d-axis current command value (i ^* _d ) unlike the figure. On the other hand, the value of the d-axis current command value i ^* _d may be set to zero.

On the other hand, the current command generation unit 530 may further include a limiter (not shown) for limiting the current command value i ^* _q so that the current command value i ^* _q does not exceed the allowable range.

Next, the voltage command generation unit 540 generates the voltage command generation unit 540 based on the d-axis and q-axis currents (i _d , i _q ) axially transformed into the two-phase rotational coordinate system by the axial conversion unit and the current command value based on ^{_{i * d, i * q)}} , and generates a d-axis, q-axis voltage command value ^{_{(v * d, v * q}} ). For example, the voltage command generation unit 540 performs PI control in the PI controller 544 based on the difference between the q-axis current (i _q ) and the q-axis current command value (i ^* _q ) It is possible to generate the axial voltage command value v ^* _q . Further, voltage command generation unit 540, on the basis of the difference between the d-axis current (i _d) and, the d-axis current command value (i ^* _d), and performs the PI control in the PI controller (548), d-axis voltage It is possible to generate the command value v ^* _d . The voltage command generator 540 may further include a limiter (not shown) for limiting the level of the d-axis and q-axis voltage command values v ^* _d and v ^* _q so as not to exceed the permissible range .

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

)와, d축, q축 전압 지령치(v^* _d,v^* _q)를 입력받아, 축변환을 수행한다.The axis transforming unit 550 transforms the position computed by the velocity computing unit 520

) And the d-axis and q-axis voltage command values (v ^* _d , v ^* _q ).

)가 사용될 수 있다.First, the axis converting unit 550 performs conversion from a two-phase rotating coordinate system to a two-phase stationary coordinate system. At this time, the position computed by the speed calculator 520

) Can be used.

Then, the axis converting unit 550 performs conversion from the two-phase stationary coordinate system to the three-phase stationary coordinate system. Through this conversion, the axial conversion unit 1050 outputs the three-phase output voltage instruction values v ^* a, v ^* b, v ^* c.

The switching control signal output unit 560 generates an inverter switching control signal Sic according to the pulse width modulation (PWM) method based on the three-phase output voltage set values v ^* a, v ^* b and v ^* c And outputs it.

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

Meanwhile, in connection with the embodiment of the present invention, the inverter control unit 430 turns off the current supplied to the motor 230 at the time of detecting the amount of the battery. That is, all of the switching elements Sa, S'a, Sb, S'b, Sc, and S'c in the inverter 420 are turned off. During the off period, the discharge amount can be accurately sensed by the deceleration speed or deceleration time calculated based on the position signal H sensed by the position sensing unit 235. [

Although the inverter control unit 430 in the drive unit 220 detects the discharge amount, the controller 210 for controlling all operations of the drive unit 220 may sense the discharge amount Do. That is, the position signal H sensed by the position sensing unit 235 is transmitted to the control unit 210 through the driving unit 220, so that the control unit 210 can sense the weight.

3 and 4, the controller 210 and the inverter controller 430 may be formed as a single unit.

FIG. 6 is a flowchart illustrating a method of controlling a laundry processing apparatus according to an embodiment of the present invention, and FIGS. 7 to 11 are views referencing the control method of FIG.

First, the control unit 210 determines whether an initial operation or a predetermined time elapses after the installation, or whether there is an input of a calibration mode (S610). And if so, performs the calibration mode. Then, the calibration mode is displayed on the display (S615).

1 or 3, a calibration key 116 is provided on the control panel. By the operation of the calibration key, the calibration mode can be entered.

This calibration mode is a mode for measuring and storing each reference value used in the laundry processing apparatus operation. For example, it is possible to store a pop-up reference value, an eccentricity reference value, a speed-up slope reference value, a speed-down slope reference value, or a vibration-

In the operation mode in which the bag is inserted and the operation is performed, the error range such as the amount of bagging and eccentricity is considerably large. This is caused by installation conditions (inclination of the floor, material of the floor, etc.) of the laundry processing apparatus or whether or not the laundry is used for a long period of time after installation (degree of abrasion and separation of internal parts). In addition, when the amount of discharged fluid and the amount of eccentricity are based on the current value flowing through the motor, it is difficult to accurately measure the amount of discharged fluid and the amount of eccentricity due to various factors such as the counter electromotive force component of the motor and the noise component to the electric current.

In the embodiment of the present invention, when the initial operation or a predetermined time elapses after the installation, there is an automatic input or a calibration mode input, the controller enters the calibration mode manually and rotates the motor to a no-load state or a specific load state Eccentric amount, and the like based on the current flowing through the motor at the time of rotation, the motor speed, or the vibration to be sensed, and stores it in the storage unit 305 as a reference value or an offset.

On the other hand, FIG. 8A illustrates such a calibration mode display. On the display 118, an object 820 indicating the calibration mode and a screen 830 indicating the setting can be displayed. Thereby, the user can easily grasp that the calibration mode is being executed.

Next, in a no-load state or in a specific load state, a current is applied to rotate the motor (S620). Then, based on the current flowing through the motor or the motor speed, the reference value is stored (S625).

In the calibration mode, it is preferable that the reference value is a no-load state in which no bag is inserted into the washing tub 120, or a specific load state for performing the calibration mode. Thus, it is possible to accurately measure the reference value.

7A shows an example of a no-load state. That is, the inner tank 122 is rotated by the rotation of the motor in a state where the bag is not inserted into the washing tub 120 having the inner tank 122 and the outer tank 124. On the other hand, unlike the drawing, reverse rotation can be performed instead of forward rotation, and reverse rotation in both forward and reverse directions is also possible.

On the other hand, the motor rotation pattern can be variously applied. For example, there may be a pattern for detecting the amount of particles, a pattern for detecting eccentricity, or a maximum speed pattern.

On the other hand, Fig. 9 exemplifies a washing and drying pattern, and Fig. 10 illustrates a dehydrating stroke pattern. Thus, in the calibration mode, it is possible to rotate the motor in accordance with the washing stroke pattern of Fig. Further, in the calibration mode, it is possible to rotate the motor in accordance with the dehydration stroke pattern of Fig. Thus, in the operation mode in which the bag is inserted and operated in the future, it is possible to determine an accurate amount of discharge, eccentricity, and the like through comparison of reference values.

The washing section of FIG. 9 may include a laundry detection section Ta, an eccentricity detection section Tb, a first washing section Tc, and a second washing section Td.

The detection period Ta is a period for sensing the amount of the laundry in the washing tub 120 and detects the amount of the laundry based on the first rotation speed v1 of the motor 230 described above.

The mass detection can be performed based on the ripple component at a constant speed v1. 11 is a diagram showing the relationship between the current Ia generated by the flow of the bubbles in the washing tub 120 when the constant current Ia flows through the motor 230 so that the motor 230 is kept constant at the first rotational speed v1. The ripple component (Ir) is exemplified. The larger the current ripple component (Ir), the greater the amount of surplus can be detected.

On the other hand, the surplus amount detection can be performed by using the deceleration rate or the deceleration time in the deceleration section after the constant speed v1. The deceleration speed or deceleration time of the motor 230 can be sensed according to the calculated deceleration speed or deceleration time based on the position signal H of the position sensing unit 235 as described above. For example, as the deceleration speed or the deceleration time is delayed, the amount of the deceleration is considered to be small, and as the deceleration speed or the deceleration time is shortened, it can be understood that the amount is large.

In the calibration mode, since there is no capsule, the release reference value can be set using the deceleration rate or the deceleration time in the ripple component or the deceleration section. Then, the set reference value is stored in the storage unit 305.

The eccentricity sensing section Tb senses the amount of eccentricity UB in the washing tub 120 and rotates the washing tub 120 at the second rotational speed v2 to detect the amount of eccentricity. Specifically, the amount of eccentricity can be detected based on the output current (i _o ) value of the motor 230 or the ripple of the output current (i _o ).

The eccentricity reference value can be set by using the output current (i _o ) value of the motor 230 or the ripple of the output current (i _o ) or the speed ripple component of the motor 230 because there is no mold. The set eccentricity reference value is stored in the storage unit 305. [

The first washing section Tc and the second washing section Td can rotate the washing tub 120 at the third rotational speed v3 and the fourth rotational speed v4, respectively. At this time, the rising time or the falling time of the third rotation speed v3 or the fourth rotation speed v4 may be measured and the rising speed reference value or the falling speed reference value may be stored, respectively.

The dehydration stroke section of FIG. 10 is configured to include a dead volume sensing section Tl, a first eccentricity sensing section Tm, a first dehydrating section Tn, a second eccentricity sensing section To, a second dehydrating section Tp, 3 eccentricity sensing section (Tq), and a third dehydration section (Tr).

The amount-of-discharge detection period Tl in the calibration mode can be set to the amount-of-discharge reference value in the same manner as the amount-of-discharge detection period Ta of FIG. 9 described above.

The eccentricity sensing section (Tm or To or Tq) in the calibration mode can set the eccentricity reference value in the same manner as the eccentricity sensing section Tb in FIG. 9 described above.

In addition, the dewatering period (Tn or To or Tr) can rotate the washing tub 120 at the third rotational speed v3, the fourth rotational speed v4, and the fifth rotational speed v5, respectively . At this time, the rising time or the falling time of the third rotation speed v3, the fourth rotation speed v4 or the fifth rotation speed v6 may be measured, and the rising speed reference value or the falling speed reference value may be stored, respectively.

Next, when the calibration mode is ended, the calibration mode end display is performed (S630).

When the above-mentioned reference value measurement is completed and the calibration mode is ended, the control unit 210 controls to display the end of the calibration mode.

Fig. 8B illustrates a calibration mode end display. The object 820 indicating the calibration mode may be dimly displayed on the display 118 or a screen 835 indicating that the setting is complete may be displayed. Thereby, the user can easily grasp that the calibration mode has ended.

Next, it is determined whether or not the operation mode is set (S635), and the motor is rotated (S640). Then, based on the stored reference value and the current or motor speed flowing to the motor, the quantity of the battery is determined (S645).

By the operation of the operation key 117, the operation mode can be performed. The operation mode can be performed by a washing step, a rinsing step, and a dewatering step after the cloth is inserted into the washing tub 120.

Fig. 7B shows an example in which a bag is inserted and the washing tub is rotated. That is, in a state where the cloth 810 is inserted into the washing tub 120 having the inner tub 122 and the outer tub 124, the inner tub 122 is rotated by the rotation of the motor. On the other hand, unlike the drawing, reverse rotation can be performed instead of forward rotation according to the operation mode, and reverse rotation in the normal and reverse directions is also possible.

The washing cycle in the operation mode is exemplified in Fig. 9 described above, and the dewatering cycle can be illustrated in Fig. 10 described above.

On the other hand, the rinsing cycle can be performed in a water supply section, a predetermined speed rotation section, a drain section, and the like, and various examples are possible.

On the other hand, the control unit 210 uses the accumulated reference value stored in the calibration mode and the accumulated value measured in the operation mode at the mass detection interval Ta in the washing stroke or the mass detection interval Tl in the dehydration stroke, The final mass value can be determined. For example, by subtracting the offset reference value from the offset value measured in the operation mode, it is possible to determine an accurate final release value. As a result, the laundry processing apparatus can be efficiently driven.

On the other hand, in the eccentricity sensing period Tb during the washing cycle or during the discharge period Tm during the dehydration stroke, the control unit 210 uses the eccentricity reference value stored in the calibration mode and the eccentricity value measured in the operation mode, The final eccentricity value can be determined. For example, by subtracting the eccentricity reference value, which is an offset component, from the eccentricity value measured in the operation mode, the accurate final eccentricity value can be determined. As a result, the laundry processing apparatus can be efficiently driven.

The control unit 210 also determines whether the stored rising speed reference value in the calibration mode or the falling speed reference value in the third speed section v3, the fourth speed section v4, and the fifth speed section v5, The final rising speed value or the final falling speed value can be determined using the speed reference value and the rising speed value or the falling speed value measured in the operation mode. As a result, the laundry processing apparatus can be efficiently driven.

FIG. 12 is a perspective view illustrating a laundry processing apparatus according to another embodiment of the present invention, and FIG. 13 is a diagram referred to the description of the laundry processing apparatus of FIG.

Referring to the drawings, the laundry processing apparatus 1100 of FIG. 12 is a front load system as compared with the top load system of FIG.

The laundry processing apparatus 1100 includes a cabinet 1110 forming an outer appearance of the laundry processing apparatus 1100, a tub 1120 disposed inside the cabinet 1110 and supported by the cabinet 1110, A motor 1130 for driving the drum 1122 and a washing water supply unit 1110 disposed outside the cabinet body 1111 and supplying washing water to the inside of the cabinet 1110, (Not shown), and a drain device (not shown) formed below the tub 1120 to discharge washing water to the outside.

A plurality of through holes 1122A are formed in the drum 1122 so as to allow the washing water to pass therethrough. The laundry 1122 is lifted up to a certain height during rotation of the drum 1122, (1124) may be disposed.

The cabinet 1110 includes a cabinet body 1111 and a cabinet cover 1112 disposed on the front surface of the cabinet body 1111 and coupled to the cabinet body 1111. The cabinet 1111 is disposed above the cabinet cover 1112, And a top plate 1116 disposed above the control panel 1115 and coupled with the cabinet body 1111. The cabinet 1111 includes a top plate 1116,

The cabinet cover 1112 includes a catch and release hole 1114 formed so as to allow the capsule to move in and out and a door 1113 arranged to be pivotable in the left and right direction so as to be able to open and close the catch and release hole 1114.

The control panel 1115 includes operation keys 1117 for operating the laundry processing apparatus 1100 and a display (not shown) disposed on one side of the operation keys 1117 for displaying the operating state of the laundry processing apparatus 1100 1118). In particular, in connection with an embodiment of the present invention, it may include a calibration key (not shown) for entering a calibration mode.

The control unit 1115 electrically connects the operation keys 1117 and the display unit 1118 to a control unit (not shown) and electrically controls each component of the laundry processing apparatus 1100 do.

The laundry processing apparatus 1100 of Fig. 12 rotates the motor in a no-load state or a specific load state in the calibration mode, similar to the laundry processing apparatus 100 of Fig. 1 described above, Can be measured and stored.

In the operation mode, the final accumulation value or the eccentricity value can be determined by using the accumulation value or the eccentricity value measured at the time of operation, and the previously stored reference value. Thereby, efficient driving becomes possible.

13A shows an example of a no-load state in the calibration mode. That is, the drum 1122 is rotated by the rotation of the motor in a state in which no sheet is inserted into the drum 1122. On the other hand, unlike the drawing, reverse rotation can be performed instead of forward rotation, and reverse rotation in both forward and reverse directions is also possible.

FIG. 13B shows an example in which a bag is inserted in the operation mode to rotate the washing tub. In other words, the drum 1122 is rotated by the rotation of the motor in a state where the drum 1322 is inserted into the drum 1122. On the other hand, unlike the drawing, reverse rotation can be performed instead of forward rotation according to the operation mode, and reverse rotation in the normal and reverse directions is also possible.

The laundry processing apparatus according to the embodiment of the present invention can be applied to all or some of the embodiments so that various modifications can be made to the embodiments and the methods of the embodiments described above, May be selectively combined.

Meanwhile, the control method of the laundry processing apparatus of the present invention can be implemented as a code that can be read by a processor on a processor-readable recording medium provided in the laundry processing apparatus. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored.

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

Claims (11)

1. A control method for a laundry processing apparatus including a washing tub in which a bag is inserted and rotated and a motor for rotating the washing tub,
Rotating the motor in a calibration mode, in a no-load state or in a specific load state;
Storing at least one of a pop-up reference value, an eccentricity reference value, a speed-up slope reference value, or a speed-down slope reference value based on a current flowing through the motor or a motor speed;
Rotating the motor in an operating mode; And
Determining at least one of an accumulated amount, an eccentric amount, a speed rising gradient, or a speed falling gradient based on the stored reference value and the current or motor speed flowing to the motor. . The method according to claim 1,
The calibration mode includes:
Wherein the control step is performed at the initial operation or after a predetermined time elapses after the installation or when the calibration mode is selected. The method according to claim 1,
And displaying the calibration mode on the display. The method according to claim 1,
The motor rotation step and the reference value storing step may include:
Wherein the detecting step is performed in a detection period for detecting the amount of the cloth and an eccentricity sensing period for detecting unbalance of the cloth. The method according to claim 1,
The motor rotation step and the reference value storing step may include:
Wherein the washing process is performed in a washing section or a dewatering section. A washing machine in which a bag is inserted and rotated;
A motor for rotating the washing tub;
A storage unit for storing at least one of a pop-up reference value, an eccentricity reference value, a speed-up-slope reference value, or a speed-down slope reference value based on a current flowing in the motor or a motor speed in the calibration mode; And
Wherein the control unit controls the motor to rotate in a no-load state or a specific load state in a calibration mode, controls the motor to rotate in an operation mode, and based on the stored reference value and a current or motor speed flowing in the motor, And a control unit for determining at least one of an overflow amount, an eccentric amount, a speed increasing inclination, and a speed decreasing inclination. The method according to claim 6,
And a calibration key for inputting the calibration mode,
Wherein,
Wherein the control unit controls the calibration mode to be performed at the initial operation, at a predetermined time after the installation, or at the time of the calibration key operation. The method according to claim 6,
Further comprising: a display for indicating the end of the calibration mode or the calibration mode. The method according to claim 6,
Wherein,
Wherein the control unit controls to store the discharge reference value and the eccentricity reference value in an idle sensing period for sensing the amount of the cloth and an eccentricity sensing period for sensing unbalance of the cloth. The method according to claim 6,
Wherein,
Wherein the controller controls to store the speed-rising slope reference value or the speed-falling slope reference value in the washing section or the dewatering section. The method according to claim 6,
An inverter for converting a predetermined DC power source into an AC power source of a predetermined frequency and outputting the AC power source to the motor;
An output current detector for detecting an output current flowing to the motor; And
And a position detector for detecting a position of a rotor of the motor.

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