KR100712848B1 - Control method of washing machine - Google Patents

Abstract

The control method of the washing machine according to the present invention performs the pus in the middle of the washing stroke or rinsing stroke, and then performs the dewatering stroke, thereby eliminating the eccentricity of the cloth in the washing stroke or the rinsing stroke and progressing the agglomeration or entanglement of the cloth. Since it minimizes, dehydration is easy to enter during the dehydration stroke and there is an advantage that the dehydration entry time is shortened.

Washing machine, washing stroke, rinse stroke, dehydration stroke, cloth pus, eccentricity

Description

Control method of washing machine             

1 is a cross-sectional view showing a washing machine according to the prior art,

2 is a flowchart illustrating a control method of a washing machine according to the prior art;

FIG. 3 is a diagram illustrating an amount of variation of the APM of the drum or the motor when a washing stroke, a rinsing stroke, and a dehydration stroke are performed according to a control method of a washing machine according to the related art.

4 is a flow chart illustrating a first embodiment of a control method of a washing machine according to the present invention;

FIG. 5 is a diagram illustrating an amount of variation of the APM of the drum or the motor when a washing stroke, a rinsing stroke, and a dehydration stroke are performed according to the first embodiment of the method for controlling a washing machine according to the present invention.

6 is a flow chart illustrating a second embodiment of a control method of a washing machine according to the present invention;

FIG. 7 is a diagram illustrating an amount of variation of the APM of a drum or a motor when a washing stroke, a rinsing stroke, and a dehydration stroke are performed according to a second embodiment of a method for controlling a washing machine according to the present invention;

8 is a flowchart illustrating a third embodiment of a control method of a washing machine according to the present invention;

FIG. 9 is a diagram illustrating an amount of variation of the APM of the drum or the motor when a washing stroke, a rinsing stroke, and a dehydration stroke are performed according to a third embodiment of a control method of a washing machine according to the present invention.

<Explanation of symbols on main parts of the drawings>

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine control method, and more particularly, to a washing machine control method that facilitates dehydration entry during a dewatering stroke by performing a pus during a washing or dewatering stroke.

In general, a washing machine uses washing and rinsing and dehydration to remove contaminants on clothes, bedding, etc. (hereinafter referred to as 'foam') contained in a drum by using water and detergent contained in a tub. Device.

1 is an internal configuration of a drum washing machine according to the prior art.

In the conventional drum washing machine, as shown in FIG. 1, the base 1 and the entrance hole 2a are disposed on the upper side of the base 1 to form an exterior and a cloth m may enter and exit the front side. A casing 2 formed therein, a door 4 rotatably mounted on the front surface of the casing 2 to open and close the access hole 2a, and a tub supported bufferably in the casing 102. 6) and a water supply device 10 for supplying water in which detergent is dissolved (hereinafter, referred to as washing water (w)) or clean water (hereinafter, referred to as rinsing water (w)) into the tub 6. And a drainage device 12 for draining the washing water w in the tub 6 to the outside of the casing 2, and a drum disposed in the tub 6 so as to be rotatable and accommodating the fabric m. 20) and the motor 30 provided to rotate the said drum 20 is comprised.

The tub 6 has an access hole 7 formed at the rear of the access hole 2a of the casing 2 so that the fabric m can enter and exit the drum 20.

The drum 20 has an access hole 21 formed at the rear of the access hole 2a of the casing 2 so that the fabric m can enter and exit, and a lower portion thereof is immersed in the wash water in the tub 6. The hand 22 is formed at the circumferential portion or the rear portion of the tub 6 so that the washing water w in the tub 6 can enter and exit.

In addition, a lift 26 is mounted on an inner circumference of the drum 20 to lift the cloth m so that the received cloth m is lifted to the inner upper portion of the drum 20 and then dropped by its own weight.

The motor 30 is built in the stator 31 mounted on the tub 6, the rotor 32 rotated by the stator, and the rotor 32 and penetrates the center of the rear portion of the tub 6. It consists of a drive shaft 33 connected to the center of the rear portion of the drum (20).

The stator 31 is provided with a speed sensor 34 such as a hall sensor for detecting the ALPM of the rotor 32.

Reference numeral 8 is a heater installed to heat the wash water in the tub 6.

Reference numeral 9 is a gasket attached to the tub 6 to prevent leakage between the door 4 and the entrance hole 7 of the tub 6 when the door 4 is closed.

Reference numeral 41 denotes a control panel installed to input a washing stroke, a rinsing stroke, a dehydration stroke, or the like of the washing machine or a specific course such as a wool course.

Reference numeral 42 is a control unit for controlling the water supply device 10, the drainage device 12, the motor 30, and the like according to the input of the control panel 41.

Looking at the operation of the prior art configured as described above are as follows.

2 is a flowchart illustrating a control method of a washing machine according to the prior art, Figure 3 is a change in the amount of change of the drum or motor when the washing stroke, rinsing stroke, dehydration stroke according to the control method of the washing machine according to the prior art Figure shown.

First, after the cloth (m) is introduced into the drum 20, the door 4 is closed, the washing condition is input through the control panel 41, and then the washing machine is operated. The water level, the rotational speed of the motor / forward / reverse rotation / washing time / rinsing time, etc. are set according to a specific course, such as a quantity or a wool course selected by the user, and controls the washing machine according to the selected stroke.

The control unit 42 starts the motor 30 to reach a predetermined ALPM, maintains a constant speed for a predetermined time, turns off the motor 30, and starts the motor 30 from the start of the constant speed maintenance to the end. Calculating a pulse width modulation duty value, calculating an angle rotated by the force after the motor 30 is turned off, and multiplying the pulse width modulation duty value by a proportional constant A value obtained by multiplying a value and the rotational rotation angle by a proportional constant is selected as a sensing amount (S1).

Of course, the detection of the quantity of water can be calculated by other methods than the above calculation.

When the washing stroke is selected, the control unit 42 operates the water supply device 10 to supply wash water, and when the washing water is supplied by the water supply level according to the sensing amount into the tub 6, the water supply The water supply is stopped by stopping the apparatus 10 (S2).

The control unit 42 drives the motor 30 forward and reverse for washing, the drum 20 is rotated forward and backward by the motor 30, and the cloth in the drum m is the drum. As it flows within the 20, the time when it is buried by the washing water (w) falls. (S3)

The control unit 42 performs the washing as described above for the washing time, and turns off the motor 30 to complete the washing when the washing time elapses (S4).

The control unit 42 operates the drainage device 12 after the washing is completed to drain the contaminated washing water w in the tub 6 to the outside of the washing machine.

Then, when the rinsing stroke is selected, the controller 42 supplies the rinsing water by operating the water supply device 10 as the water supply of the washing stroke, and according to the sensing amount into the tub 6. When the rinsing water is supplied by the water supply level, the water supply device 10 is stopped to stop the water supply.

The controller 42 drives the motor 30 forward and reverse for rinsing, the drum 20 is rotated forward and reverse by the motor 30, and the cloth in the drum m is the drum. The foam buried by the washing water (w) is rinsed while flowing in the (20). (S7)

The controller 42 performs the rinsing as described above for the rinsing time, and turns off the motor 30 to complete the rinsing after the rinsing time has elapsed (S8).

After the rinsing is completed, the control unit 42 operates the drainage device 12 to drain the contaminated washing water w in the tub 6 to the outside of the washing machine.

Thereafter, the controller 42 compares the number of times of the rinsing stroke with the number of rinses set by the user or the number of rinses set according to the quantity or the course of the user.

The control unit 42 repeats the water supply (S6), rinsing (S7, S8), drainage (S9) during the rinsing, if the number of times the rinsing stroke is carried out less than the set number as a result of the comparison, the number of times the rinsing is performed When the set number of times is reached, the next stroke is performed.

When the dehydration stroke is selected and the number of times the rinsing stroke is performed reaches a set number of times, the control unit 42 performs a quantity detection / bubbling to select a gun while re-detecting the quantity of the gun for dehydration (S11).

Here, the amount of detection / amount of pores, like the detection of the amount before the washing stroke, while detecting the amount of air, by driving the motor 30 to forward and reverse evenly to rotate the drum 20 forward and reverse.

Thereafter, the controller 42 resets the rotational speed / dehydration time and the like of the motor according to the quantity detected by the quantity detection / package.

In addition, the controller 42 detects an eccentricity (S12).

In this case, the eccentricity detection drives the motor 30 so that the drum 20 is rotated in one of clockwise and counterclockwise directions (for example, clockwise). Detects the amount of eccentricity (UB ₁ ) using the amount of change.

Then, the controller 42 performs dehydration in the direction in which the drum 20 is rotated (clockwise) if the detected eccentricity UB ₁ is smaller than the reference eccentric amount Pass UB for determining dehydration entry. (S13, S15)

The control unit 42 drives the motor 30 at a high speed at a rotational speed / dehydration time according to the quantity detected by the quantity detection / packing pus, thereby high speed centrifugal dehydration of the drum of the drum 20, and the drainage device ( 12) is operated to drain the dewatered water from the cloth to the outside of the washing machine, and when the dehydration time elapses, the motor 30 is turned off to complete the dehydration.

On the other hand, the controller 42 determines that the eccentricity UB ₁ is excessive when the amount of eccentricity UB ₁ detected by the eccentricity detection is greater than or equal to the reference eccentricity UB ₁ , and performs a puddle S14 for balancing. And perform eccentric detection again (S12).

The washing machine reversely drives the motor 30 so that the drum 20 is rotated in a different direction (for example, counterclockwise) between a clockwise direction and a counterclockwise direction, and the amount of ALPM change during reverse driving of the motor 30 is performed. Rediscover the eccentricity (UB ₂ ) using.

Then, if the redetected eccentricity UB ₂ is smaller than the reference eccentricity Pass UB for dehydration entry, the dehydration stroke is performed in the direction in which the drum 20 is reversely rotated (clockwise), and the redetected If the eccentricity (UB ₂ ) is equal to or greater than the reference eccentricity (Pass UB), it is determined that the eccentricity (UB ₂ ) is excessive and re-executs the sieve (S14), and then performs eccentricity detection (S12) again. the amount of eccentricity (UB _3, UB _4, .....) the reference eccentricity (Pass UB) until it is smaller than the constant of the drum 20 as described above, the rotating and eccentric detected (S12) and compared with the fabric pus ( Repeat S14).

On the other hand, the control unit 42 repeats the forward, reverse rotation and eccentricity detection (S12) of the drum 20 as described above and the comparison and pore (S14) is carried out a predetermined number of times (for example, 70 times) or If it is carried out for a set time (for example, 30 minutes), the dewatering stroke is stopped or the dewatering stroke is performed in an eccentric state.

However, in the conventional washing machine control method, when the fabric is entangled or eccentric before the dehydration stroke, the eccentricity detection (S12) and the pore (S14) are performed several times or more, so that the dehydration entry time becomes long, and the eccentricity In this severe case, there is a problem that can not be carried out dehydration (S15).

The present invention has been made in order to solve the above problems of the prior art, and since the dehydration stroke is carried out after the fabric is selected during the washing or rinsing stroke, the fabric is efficiently selected, and the dehydration can be easily entered during the dehydration stroke. It is an object of the present invention to provide a control method of a washing machine.

In the control method of the washing machine according to the present invention for solving the above problems, after performing at least one of the washing stroke and the rinsing stroke, when the detection eccentricity is less than the reference eccentricity when the detection eccentricity exceeds the reference eccentricity In the control method of the washing machine to repeat the purge and eccentricity detection until the detected eccentricity is less than the reference eccentricity, at least one of the washing stroke and the rinsing stroke is carried out before the drainage of the stroke If the detected eccentricity is less than or equal to a predetermined value during sensing of the eccentricity during or after the foaming step is performed, the step of draining the stroke may be performed.

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In the four steps, the forward and reverse rotation times are respectively shorter than the drum forward and reverse rotation times of the washing and rinsing strokes, respectively.

The control method of the washing machine is characterized in that if the sensed eccentricity exceeds a set value, repeating the sieve step and the eccentricity detection.

The set value is set to be different from the reference eccentricity for determining the execution of the dehydration stroke.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same construction and operation as in the prior art will not be described in detail.

4 is a flowchart illustrating a first embodiment of a control method of a washing machine according to the present invention, and FIG. 5 is a washing stroke, a rinsing stroke, and a dehydration stroke according to the first embodiment of the control method of a washing machine according to the present invention. The figure shows the amount of variation of the ALPEM of the drum or motor.

In the control method of the washing machine according to the present embodiment, as shown in Figs. 4 and 5, the control unit 42 detects the quantity (S101).

When the washing stroke is selected, the control unit 42 operates the water supply device 10 to supply the washing water.

The control unit 42 drives the motor 30 forward and reverse for washing, the drum 20 is rotated forward and backward by the motor 30, and the cloth in the drum 20 is the drum. As the fluid flows in the 20, the time when it is buried by the washing water (w) falls. (S103)

The control unit 42 performs the washing as described above during the washing time set according to the detected quantity, and stops the forward and reverse rotation of the drum 20 for washing before reaching the washing time, Foaming (S104) is carried out to even out. (S104)

Here, the cloth (S104) is to rotate the drum 20 in a state in which the wash water is not drained, forward and reverse, the forward, reverse rotation time of the drum 20 for washing the cloth (m) , Shorter than reverse rotation time.

When the foaming pus (S104), the foam (m) in the drum 20 flows with the wash water to eliminate entanglement and agglomeration, and less eccentricity than when the foaming (S104) is not performed.

On the other hand, the control unit 42 performs the above-mentioned form (S104) at least once and then turn off the motor 30 to complete the washing (S105).

Thereafter, the control unit 42 operates the drainage device 12 to drain the contaminated washing water w in the tub 6 to the outside of the washing machine.

Then, when the rinsing stroke is selected, the control unit 42 operates the water supply device 10 to supply the rinsing water as the water supply of the washing stroke.

The controller 42 drives the motor 30 forward and reverse for rinsing, the drum 20 is rotated forward and reverse by the motor 30, and the cloth in the drum m is the drum. The remaining foam on the fabric is rinsed by the rinsing water (w) while flowing in the (20). (S108)

The control unit 42 performs the rinsing during the rinsing time set according to the detected amount of water, stops the forward and reverse rotation of the drum 20 for rinsing before reaching the rinsing time, A four-segmentation is performed to even out. (S109)

Here, the foaming (S104) is to rotate the drum 20 forward and reverse in a state in which the rinsing water is not drained, like the foaming (S104) during the washing stroke, the forward and reverse rotation time is (m) is made shorter than the forward and reverse rotation time of the drum 20 for rinsing.

When the foaming (S104) as described above, the foam (m) in the drum 20 flows with the rinsing water to eliminate entanglement or aggregation, and less eccentricity than when the foaming (S109) is not performed.

On the other hand, the control unit 42 performs at least one time as described above (4) of the foaming (S109) and then turn off the motor 30 to complete the rinsing (S110).

Thereafter, the controller 42 operates the drainage device 12 to drain the contaminated rinsing water w in the tub 6 to the outside of the washing machine.

Then, the controller 42 compares the number of times the rinsing stroke is performed with the number of rinses set by the user or the number of rinses set according to the quantity or course of the user (S112).

When the number of times the rinsing stroke is performed is less than the set number as a result of the comparison, the controller 42 supplies water (S107), rinsing (S108), pore 109, rinsing completion 110, and draining water (S111) of the rinsing stroke. Is repeated, and when the number of times the rinse stroke is performed reaches the set number of times, the next stroke is performed.

When the dehydration stroke is selected and the number of times the rinsing stroke is performed reaches a predetermined number of times, the controller 42 performs a quantity detection / bubbling to select a gun while re-detecting the amount of water for dehydration (S113).

Here, the amount of detection / amount of pores, like the detection of the amount before the washing stroke, while detecting the amount of air, by driving the motor 30 to forward and reverse evenly to rotate the drum 20 forward and reverse.

Subsequently, the controller 42 resets the rotation speed / dehydration time and the like of the motor 30 according to the quantity detected by the quantity detection / foam and detects the eccentricity to determine the implementation of the dehydration. )

Here, since the method of detecting the eccentricity is the same as in the related art, a detailed description thereof will be omitted.

Upon detection of the eccentricity, the cloth in the drum 20 was subjected to foaming (S104) in the middle of the washing stroke, and foaming (S109) in the middle of the rinsing stroke, and thus the foaming (S104, S109). When this is not done, the amount of eccentricity UB is relatively reduced.

The controller 42 compares the sense eccentricity UB with a reference eccentric amount Pass UB for determining dehydration entry (S115).

When the detection eccentricity UB exceeds the reference eccentricity Pass UB, the controller 42 repeats separate sieves S116 and eccentricity detection S114, and the detection eccentricity UB is the reference eccentricity Pass UB. ) Or less, and enters dehydration (S117) without repeating the separate pores (S116) and eccentricity detection (S114).

On the other hand, the sensing eccentricity (UB) is a state in which the eccentricity is resolved to some extent by the foaming pus (S104) of the washing stroke and the foaming pus (S109) of the rinsing stroke of the baggage in the drum (20). ) Is a relatively small state, the washing machine is minimized the number of separate pores (S116) and the eccentricity detection (S114), the dehydration entry time of the washing machine is relatively shortened.

The controller 42 drives the motor 30 at high speed during the dehydration time set in the quantity detection / pore after the dehydration has entered, and the drum 20 is rotated in one direction by the motor 30 at high speed. And centrifugal dewatering of the fabric. (S118)

In addition, the control unit 42 operates the drainage device 12 to drain the water dewatered from the cloth to the outside of the washing machine, and turns off the motor 30 to complete the dehydration stroke after the dehydration time has elapsed.

6 is a flowchart illustrating a second method of controlling a washing machine according to the present invention, and FIG. 7 is a washing stroke, a rinsing stroke, and a dehydration stroke according to a second embodiment of the method for controlling a washing machine according to the present invention. The figure shows the amount of variation of the ALPEM of the drum or motor.

As shown in FIGS. 6 and 7, the control method of the washing machine according to the present embodiment includes the form of pus (S104a) as in the first embodiment of the present invention before the drainage (S106) (S111) of the washing stroke and the rinsing stroke ( S109a is performed respectively, and after the four pus S104a and S109a are performed, separate eccentricity detection S104b and S109b are performed.

The controller 42 compares the detected amount of eccentricity UB with a set value Pass UB '(S104c, S109c).

If the detected eccentricity UB is less than or equal to the set value Pass UB ', the controller 42 performs after the multiples S106 and S111 as in the first embodiment of the present invention, and the detected eccentricity UB is When the set value Pass UB 'is exceeded, it is compared with the pore S104a, S109a and the eccentricity detection S104b, S109b until the detected amount of eccentricity UB becomes equal to or less than the set value Pass UB'. S104c and S109c) are repeated.

That is, the control method of the washing machine according to the present embodiment performs the next stroke after the eccentricity is sufficiently resolved so that the agglomeration or entanglement of the cloth does not proceed in the washing stroke and the rinsing stroke, and in the dehydration stroke, the eccentricity is sufficient. Detect the eccentricity of the dissolved cloth to enter the dehydration accordingly, separate defoam (S116) and eccentricity detection (S114) before the dehydration stroke is further reduced than the first embodiment of the present invention, dehydration entry of the washing machine The time is shortened relatively much.

Here, the set value Pass UB 'is set differently from the reference eccentric amount Pass UB for determining the execution of the dehydration stroke.

The control method of the washing machine according to the present embodiment is a comparison between the washing of the washing and rinsing strokes (S104a) (S109a), the eccentricity detection (S104b) (S109b), the detection eccentricity and the set value (S104c, S109c) The configuration and operation are the same as those of the first embodiment of the present invention, and detailed descriptions other than the comparison between the vesicles S104a and S109a, the eccentricity detection S104b and S109b, and the detected eccentricity and the set value (S104c and S109c) are as follows. Omit.

8 is a flowchart illustrating a third embodiment of a method for controlling a washing machine according to the present invention, and FIG. 9 is a washing stroke, a rinsing stroke, and a dehydration stroke according to a third embodiment of the method for controlling a washing machine according to the present invention. Figure shows the variation of the ALPEM of the drum or motor.

As shown in FIGS. 6 and 7, the control method of the washing machine according to the present embodiment is similar to the first and second embodiments of the present invention prior to the drainage of the washing stroke and the rinsing stroke (S106). Each of the pus is subjected to an eccentricity (S104a ') (S109a').

The controller 42 compares the detected amount of eccentricity UB with a set value Pass UB '(S104b', S109b ').

If the detected eccentricity is less than or equal to the set value, the control unit 42 performs after the drainage (S106) (S111) as in the second embodiment of the present invention, and if the detected eccentricity exceeds the set value, the detected eccentricity is to the set value. The pos / eccentricity detection (S104a ') (S109a') and the comparison (S104b ') (S109b') are repeated until below.

The control method of the washing machine according to the present embodiment has other configurations and actions other than the washing and rinsing strokes (S104a ') (S109a') and the comparison between the detected eccentricity and the set value (S104b ', S109b'). The same as in the second embodiment of the present invention, detailed descriptions other than the pore / eccentricity detection (S104a ') (S109a') and the comparison between the detected eccentricity and the set value (S104b ', S109b') are omitted.

In the control method of the washing machine according to the present embodiment, since the eccentricity is sensed while detecting the eccentricity, the overall washing time is shorter than the second embodiment of the present invention which separately performs the vesicle and eccentricity detection.

The control method of the washing machine according to the present invention constituted as described above is carried out the foaming during the washing or rinsing stroke, and then the dewatering stroke, thereby eliminating the eccentricity of the fabric in the washing or rinsing stroke, Since minimizing the progress of agglomeration or entanglement, there is an advantage that the dehydration entry is easy during the dehydration stroke and the dehydration entry time is shortened.

In addition, the control method of the washing machine according to the present invention performs foaming during the washing stroke or rinsing stroke and detects the eccentricity, so that if the detection eccentricity is large, repeating the pus and eccentricity until the eccentricity is sufficiently resolved , Dehydration entry time of the washing machine has an advantage that can be shortened even more.

Claims (6)

After at least one of the washing stroke and the rinsing stroke, the eccentricity detection is performed, and if the detected eccentricity exceeds the reference eccentricity, the pore and the eccentric detection are repeated until the detected eccentricity is less than the reference eccentricity, In the control method of the washing machine to perform the dehydration stroke, At least one of the wash and rinse strokes performs a purge step prior to draining the stroke, The method of controlling the washing machine, characterized in that the eccentricity is sensed during the siphoning step or after the sifting step is performed, and if the detected eccentricity is less than or equal to the set value, the step of draining the stroke is performed. delete delete The method of claim 1, In the washing step, the forward and reverse rotation times are respectively shorter than the drum forward and reverse rotation times of the washing and rinsing strokes, respectively. The method of claim 1, The control method of the washing machine is a control method of the washing machine, characterized in that for repeating the sieve step and the eccentric detection, if the detected eccentricity exceeds a set value. The method of claim 1, And the set value is set differently from a reference eccentricity for determining the execution of the dehydration stroke.

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