CN113265833A - Washing control method of washing machine - Google Patents
Washing control method of washing machine Download PDFInfo
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- CN113265833A CN113265833A CN202110701597.2A CN202110701597A CN113265833A CN 113265833 A CN113265833 A CN 113265833A CN 202110701597 A CN202110701597 A CN 202110701597A CN 113265833 A CN113265833 A CN 113265833A
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- washing
- washing machine
- motor
- inner barrel
- control program
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/22—Condition of the washing liquid, e.g. turbidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/24—Spin speed; Drum movements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/02—Water supply
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
A washing control method of a washing machine comprises a motor, a clutch, a microcomputer, an inner barrel driven to rotate by the motor and the clutch, a control program is arranged on the microcomputer, the washing machine further comprises a detection circuit used for detecting the number of counter-potential pulses of the motor and a motor control circuit used for controlling the forward and reverse rotation of the motor, the detection circuit and the motor control circuit are respectively in communication connection with the control program, the washing control method of the washing machine is that the motor driving the inner barrel to operate runs according to forward and reverse rotation operation parameters set by the control program under the condition that the inner barrel is not provided with water and clothes are stored, and after the motor stops, the detection circuit detects the number of the counter-potential pulses of the motor. The washing machine can automatically enter the washing machine and has a fuzzy function, the fuzzy principle is that the pulse number of counter electromotive force is measured through the positive and negative rotation of the motor under the water-free state, the control program judges the weight and the material of clothes in the inner barrel of the washing machine, the water level is automatically adjusted, and the washing machine also has the functions of washing and dewatering by one key.
Description
Technical Field
The invention relates to a washing machine, in particular to a washing control method of the washing machine.
Background
In the conventional washing machine, the weight of the clothes in the inner tub is generally measured by a weight sensor, or the clothes in the inner tub of the washing machine are subjected to fuzzy weighing, and in order to improve the precision of the fuzzy weighing, an automatic compensation program such as water supplement correction is added to a control program of the washing machine. The steps are cumbersome. And thus, is in need of further improvement.
Disclosure of Invention
The invention aims to provide a washing machine washing control method which is characterized in that a control program judges the weight and the material of clothes in an inner barrel of a washing machine, automatically adjusts the water level, avoids the problem of accuracy of judgment caused by resistance generated when a pulsator rotates, corrects the washing water level corresponding to different clothes types in a certain program, enhances the accurate judgment of the pulsator washing machine on the weight and the types of the clothes in the washing machine barrel, and improves the accurate adjustment of the water level, so as to overcome the defects in the prior art.
The washing control method of the washing machine comprises the steps that the motor, the clutch, the microcomputer and an inner barrel driven to rotate by the motor and the clutch are arranged, the clutch is in transmission connection with the motor, a control program is arranged on the microcomputer, the washing machine further comprises a detection circuit used for detecting the pulse number of counter electromotive force of the motor and a motor control circuit used for controlling the forward and reverse rotation of the motor, the detection circuit and the motor control circuit are respectively in communication connection with the control program, the washing control method of the washing machine is characterized in that the motor driving the inner barrel to operate operates according to forward and reverse rotation operation parameters set by the control program under the condition that the inner barrel does not contain water and stores clothes, after the motor stops, the detection circuit detects the pulse number of the counter electromotive force of the motor and feeds back the detected pulse number of the counter electromotive force of the motor to the control program, the control program obtains the pulse number of the counter electromotive force of the motor, and the control program obtains the weight of the clothes according to a relation table of the pre-stored in the inner barrel, the control program automatically adjusts the washing water level of the inner barrel according to the pre-stored relation between the weight of the clothes in the inner barrel and the water level; or the weight of the clothes in the inner barrel is judged by acquiring the running speed of the motor or the inner barrel.
The washing machine also comprises a control panel, wherein a washing key and a power key are arranged on the control panel, the power key is not pressed when the washing machine is in a power-on state, and if the washing key is continuously pressed for X seconds, the washing machine automatically enters a washing program; or, when the washing machine is in the power-on state and the power key and the washing key are pressed, the washing machine automatically enters a washing program.
The control panel is also provided with a dehydration key, and when the washing machine is in a power-on state and the power key is not pressed, if the dehydration key is continuously pressed for X seconds, the washing machine automatically dehydrates; or, in the power-on state of the washing machine, and the power key and the dewatering key are pressed, the washing machine automatically enters the dewatering program.
The control program automatically adjusts the washing time of the washing program of the washing machine according to the relationship between the pre-stored water level and the washing time.
The control program automatically adjusts the washing rhythm of the washing program of the washing machine according to the pre-stored relation between the weight of the clothes in the inner barrel and the washing rhythm.
The inner barrel is provided with a water level sensor which detects the washing water level of the inner barrel in real time, and a control program controls the on-off of a water inlet valve of the washing machine according to the information of the water level sensor.
The clutch is provided with a Hall sensor, and the motor control circuit controls the motor to rotate forward and backward according to forward and backward rotation operating parameters set by a control program; the detection circuit acquires the pulse number generated by the Hall sensor in the positive and negative rotation process of the motor; the control program judges the weight of the clothes in the inner barrel according to the pulse number generated by the Hall sensor.
The washing machine is provided with an acceleration sensor for detecting the rotating speed of the inner barrel, the acceleration sensor transmits the rotating speed information of the inner barrel to a control program, and the control program judges the weight of the clothes in the inner barrel according to the pre-stored relation between the weight of the clothes in the inner barrel and the rotating speed of the inner barrel.
The motor is provided with a Hall sensor for detecting the rotating speed of the motor, the Hall sensor transmits the rotating speed information of the motor to a control program, and the control program judges the weight of the clothes in the inner barrel according to the relationship between the pre-stored weight of the clothes in the inner barrel and the rotating speed of the motor.
In the washing process, the water level sensor detects the water level of the inner barrel in real time, the water level information of the inner barrel is fed back to the control program, the control program acquires the water level of the inner barrel in different time intervals, the water level of the inner barrel in each time interval is compared with the initial highest water level of the inner barrel, the type of clothes in the inner barrel is judged, and after the control program judges the type of the clothes in the inner barrel, the rotating speed of a motor or the water flow of the inner barrel is automatically adjusted in the washing process.
The control panel is also provided with a variable speed washing key and an indicator light for displaying the high speed, the low speed and the medium speed of the motor, in the washing process, a user presses the variable speed washing key, and after the indicator light displays the rotating speed of the motor, the control program adjusts the rotating speed of the motor according to the instruction of the user.
The inner tub is provided with a humidity sensor, and the control program controls the dewatering time of the washing machine according to the information of the humidity sensor.
The invention has the following beneficial effects:
the washing machine can automatically enter the washing machine and has a fuzzy function, the fuzzy principle is that the pulse number of counter electromotive force is measured through positive and negative rotation of the motor under the waterless state, the control program judges the weight and the material of clothes in the washing machine, the water level is automatically adjusted, the problem of accuracy of judgment caused by resistance generated when the impeller rotates is avoided, the washing water level corresponding to different types of the clothes is corrected in a certain program, the accurate judgment of the impeller washing machine on the weight and the types of the clothes in the washing machine is enhanced, and the accurate adjustment of the water level is improved.
Drawings
Fig. 1 is a flow chart illustrating a washing control method of a washing machine according to an embodiment of the present invention.
Fig. 2 is a schematic view of a control panel of a washing machine according to an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1, a washing control method of a washing machine, the washing machine comprises a motor, a clutch, a microcomputer and an inner barrel driven to rotate by the motor and the clutch, the clutch is connected with the motor in a transmission way, a control program is arranged on the microcomputer, the washing machine also comprises a detection circuit for detecting the pulse number of the counter electromotive force of the motor and a motor control circuit for controlling the forward and reverse rotation of the motor, the detection circuit and the motor control circuit are respectively connected with the control program in a communication way, the washing control method of the washing machine is that the motor driving the inner barrel to operate runs according to the forward and reverse rotation parameters set by the control program under the condition that the inner barrel has no water and stores clothes, after the motor stops, the detection circuit detects the pulse number of the counter electromotive force of the motor and feeds back the detected pulse number of the counter electromotive force of the motor to the control program, the control program obtains the pulse number of the counter electromotive force of the motor, the control program obtains the weight of the clothes according to a pre-stored relation table of the pulse number of the counter electromotive force of the clothes, the control program automatically adjusts the washing water level of the inner barrel according to the pre-stored relation between the weight of the clothes in the inner barrel and the water level; or the weight of the clothes in the inner barrel is judged by acquiring the running speed of the motor or the inner barrel.
In this embodiment, the forward and reverse rotation parameters are that the motor is positively transmitted for 0.3 second, is suspended for 0.7 second, and is reversely rotated for 0.3 second, is suspended for 0.7 second, and is suspended for 4 times after 4 times, and the motor is operated for 3 times in this manner.
The detection circuit comprises a coil and a capacitor.
The control program automatically adjusts the washing time of the washing program of the washing machine according to the relationship between the pre-stored water level and the washing time.
After the motor rotates, the detection circuit obtains the counter electromotive force pulse number of the motor, the control program obtains proper water level and washing time according to the counter electromotive force pulse number, different water levels and different washing beats can be automatically judged, washing water flow of the washing machine is stronger than standard water flow, clothes are washed more cleanly, and various water flows are arranged on the control program (see the following table).
Standard procedures:
intelligent washing procedure:
the control program automatically adjusts the washing rhythm of the washing program of the washing machine according to the pre-stored relation between the weight of the clothes in the inner barrel and the washing rhythm.
The inner barrel is provided with a water level sensor which detects the washing water level of the inner barrel in real time, and a control program controls the on-off of a water inlet valve of the washing machine according to the information of the water level sensor.
The clutch is provided with a Hall sensor, and the motor control circuit controls the motor to rotate forward and backward according to forward and backward rotation operating parameters set by a control program; the detection circuit acquires the pulse number generated by the Hall sensor in the positive and negative rotation process of the motor; the control program judges the weight of the clothes in the inner barrel according to the pulse number generated by the Hall sensor.
The washing machine is provided with an acceleration sensor for detecting the rotating speed of the inner barrel, the acceleration sensor transmits the rotating speed information of the inner barrel to a control program, and the control program judges the weight of the clothes in the inner barrel according to the pre-stored relation between the weight of the clothes in the inner barrel and the rotating speed of the inner barrel.
The motor is provided with a Hall sensor for detecting the rotating speed of the motor, the Hall sensor transmits the rotating speed information of the motor to a control program, and the control program judges the weight of the clothes in the inner barrel according to the relationship between the pre-stored weight of the clothes in the inner barrel and the rotating speed of the motor.
In the washing process, the water level sensor detects the water level of the inner barrel in real time, the water level information of the inner barrel is fed back to the control program, the control program acquires the water level of the inner barrel in different time intervals, the water level of the inner barrel in each time interval is compared with the initial highest water level of the inner barrel, the type of clothes in the inner barrel is judged, and after the control program judges the type of the clothes in the inner barrel, the rotating speed of a motor or the water flow of the inner barrel is automatically adjusted in the washing process.
In this embodiment, since the water absorption rates of different types of clothes are different, the water levels of the inner tub in different periods are obtained, and the water level of the inner tub in each period is compared with the initial highest water level of the inner tub, so as to determine the type of the clothes in the inner tub, and perform fuzzy recognition on the clothes in the inner tub.
The washing machine also comprises a control panel, wherein a washing button and a power key are arranged on the control panel, the power key is not pressed when the washing machine is in a power-on state, if the washing button is continuously pressed for X seconds, in the embodiment, the washing button is pressed for 3 seconds for a long time, the washing machine automatically enters a washing program, and if the time does not reach a set value for a long time, the washing machine cannot enter the washing program; the one-key washing function is controlled by a single key, so that a user can quickly enter the program, the operation is more convenient and simpler, the one-key washing function has longer washing time than that of a common program, the washing is cleaner than that of the common program, and the body health of the user is protected.
Or, when the washing machine is in the power-on state and the power key and the washing key are pressed, the washing machine automatically enters a washing program.
The washing machine needs to perform washing work, a user can select to continuously press the washing key for X seconds or press the power key and the washing key under the power-on state of the washing machine, the washing machine automatically enters a washing program, a washing program indicating lamp is arranged on the control panel, and the washing program indicating lamp is turned on when the user selects to continuously press the washing key to reach a set value, and the user can release the washing key.
The control panel is also provided with a dehydration key, and when the washing machine is in a power-on state and the power key is not pressed, if the dehydration key is continuously pressed for X seconds, in the embodiment, the dehydration key is pressed for 3 seconds for a long time, the washing machine automatically dehydrates programs, and if the time does not reach a set value for a long time, the washing machine cannot enter the dehydration programs; the one-key dehydration function adopts independent key control, so that the operation of a user is more convenient and quicker, the time is saved, and the one-key dehydration function is drier than the ordinary dehydration function (a control program adjusts the rotating speed of a motor when the washing machine dehydrates according to the operation instruction of the user).
Or, in the power-on state of the washing machine, and the power key and the dewatering key are pressed, the washing machine automatically enters the dewatering program.
The washing machine needs to carry out dehydration work, under the power-on state of the washing machine, a user can select to continuously press the dehydration key for X seconds or press the power key and the dehydration key, the washing machine automatically enters a dehydration program, the control panel is provided with a dehydration program indicator light, and if the user selects to continuously press the dehydration key to reach a set value, the dehydration program indicator light is turned on, and the user can loosen the dehydration key.
After the washing machine starts a dewatering program, the control program controls the rotating speed of the motor according to the weight of clothes and the current water level of the inner barrel so as to control the rotating speed of the inner barrel, the rotating frequency of a clutch of the washing machine is detected through a Hall sensor arranged in the washing machine, the rotating speed of the clutch can be measured, the rotating speed is the rotating speed of the inner barrel of the washing machine, a humidity sensor can be further arranged on the inner barrel, and the control program controls dewatering time according to the information of the humidity sensor.
Or, the control panel is provided with a preset dehydration time, and after the washing machine enters the dehydration program, if the user presses the preset dehydration time to set the dehydration time of the washing machine, the control program controls the dehydration time of the washing machine according to the time set by the user.
Referring to fig. 2, the control panel is further provided with a variable speed washing button and an indicator light for displaying high speed, low speed and medium speed of the motor, in the washing process, a user presses the variable speed washing button, and after the indicator light displays the rotating speed of the motor, the control program adjusts the rotating speed of the motor according to the instruction of the user.
The control panel is also provided with a display screen for displaying time and a water level key, and the control panel is also provided with an indicator lamp for displaying the water level of the preset inner barrel.
The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the invention are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is intended to be protected by the following claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A washing control method of a washing machine comprises a motor, a clutch, a microcomputer and an inner barrel driven to rotate by the motor and the clutch, wherein the clutch is in transmission connection with the motor, the microcomputer is provided with a control program, and the washing machine is characterized in that: the washing machine also comprises a detection circuit for detecting the pulse number of the counter electromotive force of the motor and a motor control circuit for controlling the forward and reverse rotation of the motor, wherein the detection circuit and the motor control circuit are respectively in communication connection with a control program; or judging the weight of clothes in the inner barrel by acquiring the running speed of the motor or the inner barrel; the washing machine also comprises a control panel, wherein a washing key and a power key are arranged on the control panel, the power key is not pressed when the washing machine is in a power-on state, and if the washing key is continuously pressed for X seconds, the washing machine automatically enters a washing program; or, under the power-on state of the washing machine, and the power key and the washing key are pressed, the washing machine automatically enters a washing program; the control panel is also provided with a dehydration key, and when the washing machine is in a power-on state and the power key is not pressed, if the dehydration key is continuously pressed for X seconds, the washing machine automatically dehydrates; or, in the power-on state of the washing machine, and the power key and the dewatering key are pressed, the washing machine automatically enters the dewatering program.
2. The washing control method of a washing machine according to claim 1, characterized in that: the control program automatically adjusts the washing time of the washing program of the washing machine according to the relationship between the pre-stored water level and the washing time.
3. The washing control method of a washing machine according to claim 1, characterized in that: the control program automatically adjusts the washing rhythm of the washing program of the washing machine according to the pre-stored relation between the weight of the clothes in the inner barrel and the washing rhythm.
4. The washing control method of a washing machine according to claim 1, characterized in that: the inner barrel is provided with a water level sensor which detects the washing water level of the inner barrel in real time, and a control program controls the on-off of a water inlet valve of the washing machine according to the information of the water level sensor.
5. The washing control method of a washing machine according to claim 1, characterized in that: the clutch is provided with a Hall sensor, and the motor control circuit controls the motor to rotate forward and backward according to forward and backward rotation operating parameters set by a control program; the detection circuit acquires the pulse number generated by the Hall sensor in the positive and negative rotation process of the motor; the control program judges the weight of the clothes in the inner barrel according to the pulse number generated by the Hall sensor.
6. The washing control method of a washing machine according to claim 1, characterized in that: the washing machine is provided with an acceleration sensor for detecting the rotating speed of the inner barrel, the acceleration sensor transmits the rotating speed information of the inner barrel to a control program, and the control program judges the weight of the clothes in the inner barrel according to the pre-stored relation between the weight of the clothes in the inner barrel and the rotating speed of the inner barrel.
7. The washing control method of a washing machine according to claim 1, characterized in that: the motor is provided with a Hall sensor for detecting the rotating speed of the motor, the Hall sensor transmits the rotating speed information of the motor to a control program, and the control program judges the weight of the clothes in the inner barrel according to the relationship between the pre-stored weight of the clothes in the inner barrel and the rotating speed of the motor.
8. The washing control method of a washing machine according to claim 1, characterized in that: in the washing process, the water level sensor detects the water level of the inner barrel in real time, the water level information of the inner barrel is fed back to the control program, the control program acquires the water level of the inner barrel in different time intervals, the water level of the inner barrel in each time interval is compared with the initial highest water level of the inner barrel, the type of clothes in the inner barrel is judged, and after the control program judges the type of the clothes in the inner barrel, the rotating speed of a motor or the water flow of the inner barrel is automatically adjusted in the washing process.
9. The washing control method of a washing machine according to claim 1, characterized in that: the control panel is also provided with a variable speed washing key and an indicator light for displaying the high speed, the low speed and the medium speed of the motor, in the washing process, a user presses the variable speed washing key, and after the indicator light displays the rotating speed of the motor, the control program adjusts the rotating speed of the motor according to the instruction of the user.
10. The washing control method of a washing machine according to claim 1, characterized in that: the inner tub is provided with a humidity sensor, and the control program controls the dewatering time of the washing machine according to the information of the humidity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110701597.2A CN113265833A (en) | 2021-06-23 | 2021-06-23 | Washing control method of washing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110701597.2A CN113265833A (en) | 2021-06-23 | 2021-06-23 | Washing control method of washing machine |
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| CN113265833A true CN113265833A (en) | 2021-08-17 |
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| CN202110701597.2A Pending CN113265833A (en) | 2021-06-23 | 2021-06-23 | Washing control method of washing machine |
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2021
- 2021-06-23 CN CN202110701597.2A patent/CN113265833A/en active Pending
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| JP2000014982A (en) * | 1998-07-03 | 2000-01-18 | Hitachi Ltd | Method for controlling fully automated washing machine |
| US20030009832A1 (en) * | 2001-07-10 | 2003-01-16 | Lg Electronics | Apparatus and method for detecting laundry weight in washing machine employing sensorless BLDC motor |
| CN102619073A (en) * | 2012-03-26 | 2012-08-01 | 贝国寅 | Accurate water level setting method of washing machine |
| CN103306096A (en) * | 2013-04-14 | 2013-09-18 | 无锡小天鹅股份有限公司 | Washing machine and automatic control method thereof |
| US20150121630A1 (en) * | 2013-11-06 | 2015-05-07 | Samsung Electronics Co., Ltd. | Washing machine and control method thereof |
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Application publication date: 20210817 |
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