CN114875629B - Control method and control device of washing machine and washing machine - Google Patents
Control method and control device of washing machine and washing machine Download PDFInfo
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- CN114875629B CN114875629B CN202210667432.2A CN202210667432A CN114875629B CN 114875629 B CN114875629 B CN 114875629B CN 202210667432 A CN202210667432 A CN 202210667432A CN 114875629 B CN114875629 B CN 114875629B
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- 238000005406 washing Methods 0.000 title claims abstract description 145
- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000001133 acceleration Effects 0.000 claims abstract description 112
- 238000009826 distribution Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims description 21
- 238000009827 uniform distribution Methods 0.000 claims description 8
- 230000018044 dehydration Effects 0.000 abstract description 7
- 238000006297 dehydration reaction Methods 0.000 abstract description 7
- 230000001276 controlling effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010412 laundry washing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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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
- D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from 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
- 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
- D06F33/48—Preventing or reducing imbalance or noise
-
- 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
- D06F34/04—Signal transfer or data transmission arrangements
-
- 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
- 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
-
- 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
- D06F2103/26—Imbalance; Noise 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention provides a control method and a control device of a washing machine and the washing machine. The control method comprises the following steps: in the clothes distribution stage, acquiring motion attitude data of a clothes treatment drum of the washing machine by using a sensor; and adjusting the operation parameters of the clothes treatment drum of the washing machine according to the motion attitude data of the clothes treatment drum of the washing machine so as to enable the motion attitude of the clothes treatment drum of the washing machine to be stable. The control method provided by the invention is provided with an independent clothes distribution stage, and in the clothes distribution stage, the motion attitude data of the clothes treatment drum of the washing machine is identified by using the sensor, the acceleration and the rotating speed of the motion are adjusted in real time, and the motion attitude of the clothes treatment drum of the washing machine is adjusted to be in a stable state, so that the clothes load is quickly and uniformly distributed, and the dehydration acceleration process is quickly carried out.
Description
Technical Field
The invention belongs to the field of washing machines, and particularly relates to a control method and a control device of a washing machine and the washing machine.
Background
After the washing machine finishes washing, the state of the clothes needs to be adjusted to be uniformly distributed for dehydration, so that the dehydration is performed under the condition that the eccentricity of the clothes is as small as possible. The dewatering rotating speed can be operated in a state of small vibration and large rotating speed. In the actual control process, when the amount of the clothes is less than or equal to half of the volume of the drum, the eccentric state of the clothes is judged, the trial is repeatedly carried out by using the control parameters with fixed distribution until the set parameters are met, and the dehydration acceleration process is carried out, so that the time for adjusting the clothes to be in a uniform distribution state is longer.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a control method and a control device of a washing machine and the washing machine, wherein the control method and the control device can shorten the time for uniformly distributing clothes and quickly carry out the dewatering and accelerating processes.
In order to solve the above technical problem, the present invention provides a control method of a washing machine, the washing machine is provided with a clothes distribution stage, the control method comprises:
in the clothes distribution stage, acquiring motion attitude data of a clothes processing drum of the washing machine by using a sensor;
and adjusting the operation parameters of the clothes treatment barrel of the washing machine according to the motion posture data of the clothes treatment barrel of the washing machine so as to enable the motion posture of the clothes treatment barrel of the washing machine to be stable.
Further optionally, the motion pose data is three-dimensional pose position data; the operating parameters include rotational speed and/or acceleration.
Further optionally, the laundry distribution phase is provided after the washing phase and before the eccentricity detection phase.
Further optionally, the method further comprises: after the washing stage is finished, controlling the clothes treatment drum to run at a first set rotating speed and a first set acceleration, and entering a clothes distribution stage;
motion gesture data further optionally, adjusting an operating parameter of a laundry treatment drum of the laundry treatment machine according to the motion gesture data of the laundry treatment drum of the laundry treatment machine, comprises:
judging whether the motion attitude of a clothes processing drum of the washing machine is stable or not according to the motion attitude data;
if the motion attitude of the clothes treatment drum of the washing machine is not stable, subtracting the preset rotation speed increment of the interval to which the corresponding motion attitude data belongs from the current set rotation speed of the clothes treatment drum to obtain a new set rotation speed, and subtracting the preset acceleration increment of the interval to which the corresponding motion attitude data belongs from the current set acceleration of the clothes treatment drum to obtain a new set acceleration; the preset rotation speed increment is greater than 0, and the preset acceleration increment is greater than or equal to 0;
judging whether the new set rotating speed is reduced to a second set rotating speed or not and whether the new set acceleration is reduced to a second set acceleration or not;
if the new set rotating speed is not reduced to the second set rotating speed, the new set acceleration is not reduced to the second set acceleration, the washing machine is operated at the new set acceleration of the new set rotating speed, and the step of judging whether the operation state of the clothes processing drum of the washing machine is stable or not according to the motion posture data is executed again.
Further optionally, the method further comprises: and if the new set rotating speed is reduced to a second set rotating speed, the new set acceleration is reduced to a second set acceleration, and the operation is carried out at the second set rotating speed and the second set acceleration until the eccentric detection stage is started.
Further alternatively, if the motion posture of the clothes processing drum of the washing machine is judged to be stable, the current set rotating speed and the set acceleration are maintained.
Further optionally, the method further includes:
when the washing machine enters an eccentricity detection stage, acquiring a clothes eccentricity value of a clothes treatment drum;
if the clothes eccentricity value meets the preset eccentricity condition, the clothes in the drum are in a uniform distribution state;
if the clothes eccentricity value does not accord with the preset eccentricity condition, the clothes treatment drum is controlled to enter the clothes distribution stage again at the current set rotating speed and set acceleration.
Further optionally, determining whether a laundry treatment drum of the washing machine is in a stable state according to the motion posture data comprises:
calculating the absolute value of the difference value between the motion attitude data and a preset stable threshold value;
judging whether the absolute value of the difference value is less than or equal to a first threshold value;
if yes, the clothes treatment drum of the washing machine is considered to be in a stable state;
if not, the clothes processing drum of the washing machine is not in a stable state.
Further optionally, when the absolute value of the difference is greater than the second threshold, the preset rotation speed increment corresponding to the interval is the first rotation speed increment, and the preset acceleration increment is 0;
and when the absolute value of the difference is smaller than or equal to the second threshold and larger than the first threshold, the preset rotation speed increment corresponding to the interval is a second rotation speed increment, and the preset acceleration increment is a first acceleration increment larger than 0.
Further optionally, in the clothes distribution stage, the rotation speed variation interval is: greater than or equal to 0rpm and less than or equal to 93rpm, the acceleration variation interval is: greater than or equal to 5rpm/s and less than or equal to 25rpm/s;
wherein, when the rotation speed of the clothes treatment drum is greater than or equal to 0rpm and less than or equal to 60rpm, the sensor is in an operating state, and when the rotation speed of the clothes treatment drum is greater than 60rpm and less than or equal to 93rpm, the sensor is in a non-operating state.
Further optionally, the acquiring motion posture data of the laundry treatment drum of the washing machine by using the sensor comprises:
and acquiring motion attitude data of the clothes treatment drum of the washing machine by using an attitude sensor every preset time interval, wherein the value range of the preset time interval is from 3s to 5s.
The present invention also provides a control apparatus of a washing machine, comprising:
a memory for storing computer instructions;
a controller for invoking and executing computer instructions stored in the memory to implement the control method of the laundry machine of any one of the above.
The invention also provides a washing machine, which comprises a sensor, wherein the sensor is arranged on the outer wall of the clothes treatment barrel of the washing machine, preferably on a straight line vertical to the central shaft of the clothes treatment barrel of the washing machine, so as to be more accurately used for detecting the motion attitude data of the clothes treatment barrel of the washing machine; the washing machine adopts the control method of the washing machine as any one of the above; alternatively, the laundry washing machine comprises a control device of a laundry washing machine as hereinbefore described.
Further optionally, the sensor is an attitude sensor.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: in the clothes distribution stage, the motion attitude of the clothes treatment barrel of the washing machine is identified by utilizing the attitude sensor, so that accurate motion attitude data can be obtained, the operation parameters of the clothes treatment barrel of the washing machine are regulated and controlled on the basis, the motion attitude of the clothes treatment barrel of the washing machine can be quickly regulated to be in a stable state, and the time for uniformly distributing clothes load can be shortened. In particular, the laundry distributing stage is arranged before the eccentricity detecting stage, i.e., enters the eccentricity detecting stage when the motion attitude of the laundry treating drum of the washing machine is stable, so that the eccentricity detecting time can be shortened. In addition, when the clothes eccentricity value does not accord with the eccentricity detection requirement, the clothes distribution stage can be returned, the motion attitude data acquired by the attitude sensor in real time is reused to adjust the operation parameters of the clothes treatment drum so as to achieve the aim of uniform distribution of the clothes, and compared with the traditional method for judging the eccentricity state of the clothes, the method can repeatedly try the clothes with the control parameters in fixed distribution until the set parameters are met, so that the uniform distribution time of the clothes can be effectively reduced, and the dehydration acceleration process can be rapidly carried out.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort. In the drawings:
fig. 1 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present invention.
Fig. 2 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a washing machine according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a washing machine according to an embodiment of the present invention.
Fig. 6 is a schematic block diagram of a washing machine according to an embodiment of the present invention.
Fig. 7 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present invention.
Wherein: 1-sensor, 2-laundry treatment drum.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it for those skilled in the art by reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to solve the problem of long time for adjusting the clothes to be in a uniform distribution state in the prior art, the embodiment of the invention provides a control method of a washing machine, and the corresponding washing machine is provided with an independent clothes distribution stage.
A control method of a washing machine according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1, the control method includes steps S1 to S2, wherein:
s1, in a clothes distribution stage, motion attitude data of a clothes treatment drum of the washing machine is acquired by utilizing an attitude sensor.
The motion of the clothes in the clothes treatment drum of the common washing machine can generate certain shaking, the amplitude of the shaking is identified by adopting the attitude sensor, and the motion attitude of the clothes treatment drum of the washing machine can be identified more accurately.
And S2, adjusting the operation parameters of the clothes treatment drum of the washing machine according to the motion attitude data of the clothes treatment drum of the washing machine so as to enable the motion attitude of the clothes treatment drum of the washing machine to be stable.
The motion attitude data of the clothes treatment drum of the washing machine acquired by the attitude sensor is utilized to adjust the operation parameters of the clothes treatment drum of the washing machine in real time, and the motion attitude of the clothes treatment drum of the washing machine can be rapidly adjusted to a stable state, so that the time for uniformly distributing clothes load can be shortened.
Further preferably, the operating parameter comprises a rotational speed and/or an acceleration.
The rotating speed and/or the acceleration of the clothes treatment drum are/is adjusted by utilizing the motion attitude data of the clothes treatment drum of the washing machine acquired by the attitude sensor, so that the motion attitude of the clothes treatment drum of the washing machine can be quickly adjusted to a stable state.
Further optionally, the laundry distribution phase is arranged after the washing phase and before the eccentricity detection phase.
The laundry distributing stage is disposed before the eccentricity detecting stage, i.e., enters the eccentricity detecting stage when the motion attitude of the laundry treating drum of the washing machine is stable, so that the eccentricity detecting time can be shortened. In addition, when the clothes eccentricity value does not accord with the eccentricity detection requirement, the clothes distribution stage can be returned, the motion attitude data acquired by the attitude sensor in real time is reused to adjust the operation parameters of the clothes treatment drum so as to achieve the aim of uniform distribution of the clothes, and compared with the traditional method for judging the eccentricity state of the clothes, the method can repeatedly try the clothes with the control parameters in fixed distribution until the set parameters are met, so that the uniform distribution time of the clothes can be effectively reduced, and the dehydration acceleration process can be rapidly carried out.
Further optionally, after the washing phase is finished, the laundry treatment drum is controlled to enter the laundry distribution phase at a first set rotation speed and a first set acceleration.
After the washing phase is finished, the clothes processing drum is controlled to enter the clothes distribution phase at a first set rotating speed and a first set acceleration. Subsequent changes in speed and acceleration are increased or decreased based thereon.
Further optionally, with reference to the control flow chart of fig. 2, step S2 includes steps S21 to S25, where:
s21, judging whether the motion attitude of the clothes processing drum of the washing machine is stable or not according to the motion attitude data;
s22, if the motion attitude of the clothes processing drum of the washing machine is not stable, subtracting the preset rotation speed increment of the interval to which the corresponding motion attitude data belongs from the current set rotation speed of the clothes processing drum to obtain a new set rotation speed, and subtracting the preset acceleration increment of the interval to which the corresponding motion attitude data belongs from the current set acceleration of the clothes processing drum to obtain a new set acceleration;
s23, judging whether the new set rotating speed is reduced to a second set rotating speed or not and whether the new set acceleration is reduced to a second set acceleration or not; and S24, if the new set rotating speed is not reduced to the second set rotating speed, the new set acceleration is not reduced to the second set acceleration, the operation is carried out at the new set rotating speed and the new set acceleration, and the step S1 is executed again.
When the motion attitude of the clothes treatment drum of the washing machine is unstable, namely the shaking amplitude of the clothes treatment drum of the washing machine is large, the rotating speed and the acceleration of the clothes treatment drum are correspondingly adjusted according to the section to which the motion attitude data belongs. Specifically, the current set rotating speed of the clothes treatment drum is adjusted according to the preset rotating speed increment corresponding to the section to which the motion attitude data belongs, and the current set acceleration of the clothes treatment drum is adjusted according to the preset acceleration increment corresponding to the section to which the motion attitude data belongs, so that a new set rotating speed and a new set acceleration are obtained, and the operation is performed according to the new set rotating speed and the new set acceleration. In the process of adjusting the set acceleration and the set rotation speed, whether the new set rotation speed and the new set acceleration reach the corresponding lowest set values or not needs to be judged, and when the new set rotation speed and the new set acceleration respectively reach the corresponding lowest set values, the adjustment of the corresponding operation parameters is stopped.
The preset rotation speed increment is larger than 0 and can be 0, so that only the rotation speed can be adjusted according to the actual condition, and the acceleration is not adjusted.
Further optionally, in combination with the control flowchart of fig. 2, step S2 further includes step S25, where:
and S25, if the new set rotating speed is reduced to a second set rotating speed, the new set acceleration is reduced to a second set acceleration, and the operation is carried out at the second set rotating speed and the second set acceleration until the eccentric detection stage is started.
And when the set rotating speed and the set acceleration are reduced to the corresponding minimum values, namely the second set rotating speed and the second set acceleration, operating at the second set rotating speed and the second set acceleration until an eccentricity detection stage is carried out.
After the washing machine enters a clothes distribution stage, the washing machine runs at a first set rotating speed and a first set acceleration, and when the current motion attitude of a clothes treatment drum of the washing machine is determined to be unstable by using motion attitude data detected by an attitude sensor, the rotating speed and the acceleration are changed. When the rotating speed and the acceleration change, the rotating speed and the acceleration are both directly set on the basis of the current set rotating speed, namely, the current rotating speed is directly set to a new set rotating speed. When the rotating speed and the acceleration are both reduced to the corresponding minimum values, the rotating speed and the acceleration are not changed any more, and the operation is carried out according to the current state. And when the rotating speed and the acceleration are not reduced to the respective corresponding minimum set values, operating at the new set rotating speed and the new set acceleration, and continuously judging whether the motion posture of the clothes treatment drum of the washing machine is stable or not according to the detection value of the posture sensor, so as to form cycle judgment, and stopping the change of the rotating speed and the acceleration until the motion posture of the clothes treatment drum of the washing machine is in a stable state or the rotating speed and the acceleration are reduced to the respective corresponding minimum set values.
Further optionally, in conjunction with the control flow diagram of fig. 2, step S2 includes step S26, wherein:
and S26, if the clothes processing drum of the washing machine is judged to be in a stable state, keeping the current set rotating speed and the set acceleration unchanged.
Specifically, if the detected motion posture data is data when the washing drum is in a stable state, the current set rotating speed and the set acceleration are kept unchanged, the subsequent changes of the rotating speed and the acceleration are increased or decreased on the basis, and the clothes processing drum is controlled to continue to operate in the current state until the eccentric detection stage is entered.
Further, with reference to the control flow chart of fig. 2, step S2 further includes S27 to S29, where:
s27, in the eccentricity detection stage, acquiring a clothes eccentricity value of the clothes treatment drum;
s28, if the eccentricity value of the clothes meets a preset eccentricity condition, the clothes are considered to be uniformly distributed;
s29, if the clothes eccentricity value does not accord with the preset eccentricity condition, controlling the clothes treatment drum to enter the clothes distribution stage again at the current set rotating speed and set acceleration.
In the eccentricity detection stage, normally executing an eccentricity detection program, and when the obtained clothes eccentricity value does not accord with a preset eccentricity condition, controlling the clothes treatment drum to enter the clothes distribution stage again at the current set rotating speed and set acceleration. In the laundry distribution phase, the change of the rotation speed and the acceleration is increased or decreased based on the current set rotation speed and set acceleration. When the obtained clothes eccentricity value accords with the preset eccentricity condition, the clothes distribution state is considered to be uniform, and the eccentricity detection logic is normally executed without returning to the clothes distribution stage.
Further optionally, in an embodiment of the present invention, in combination with the control flowchart of fig. 3, step S21 includes S211 to S214, where:
s211, calculating an absolute value of a difference value between the motion attitude data and a preset stability threshold;
s212, judging whether the absolute value of the difference value is less than or equal to a first threshold value; if yes, executing S213, if no, executing S214;
s213, regarding that the clothes treatment drum of the washing machine is in a stable state;
s214, the clothes processing drum of the washing machine is not in a stable state.
Specifically, the absolute value of the difference between the motion attitude data acquired by the sensor and the preset stability threshold is calculated, when the absolute value of the difference is smaller than or equal to the first threshold, the motion attitude of the clothes treatment drum of the washing machine is considered to be stable, and on the contrary, when the absolute value of the difference is larger than or equal to the first threshold, the motion attitude of the clothes treatment drum of the washing machine is considered to be unstable, so that the condition that clothes in the drum are not uniformly distributed is indirectly reflected. At the moment, the motion posture of the clothes treatment drum of the washing machine is adjusted to be in a stable state by adjusting the rotating speed acceleration of the clothes treatment drum, so that the clothes are quickly and uniformly distributed.
Further optionally, when the absolute value of the difference is greater than the second threshold, the preset rotation speed increment corresponding to the interval is the first rotation speed increment, and the preset acceleration increment is 0. That is, only the rotational speed is adjusted, and the acceleration is not adjusted.
And when the absolute value of the difference is smaller than or equal to the second threshold and larger than the first threshold, the preset rotation speed increment corresponding to the interval is a second rotation speed increment, and the preset acceleration increment is a first acceleration increment larger than 0. I.e. the rotational speed and the acceleration are adjusted simultaneously.
Further optionally, in the clothes distribution stage, the rotation speed variation interval is: greater than or equal to 0rpm and less than or equal to 93rpm, the acceleration variation interval is: greater than or equal to 5rpm/s and less than or equal to 25rpm/s;
wherein, when the rotation speed of the clothes treatment drum is greater than or equal to 0rpm and less than or equal to 60rpm, the sensor is in an operating state, and when the rotation speed of the clothes treatment drum is greater than 60rpm and less than or equal to 93rpm, the sensor is in a non-operating state.
Further optionally, with reference to the flowchart of fig. 2, step S1 specifically includes:
motion attitude data of a laundry treatment drum of a washing machine is acquired once every interval of a preset duration using an attitude sensor.
Further optionally, the preset duration has a value range of: greater than or equal to 3s and less than or equal to 5s.
Specifically, the preset time period may be 3s, 4s, 5s, or the like.
By reasonably setting the detection interval duration, the time for adjusting the motion posture of the clothes treatment drum of the washing machine to a stable state can be reduced, so that the duration for uniformly distributing the clothes is shortened.
An embodiment of the present invention further provides a control apparatus for a washing machine, including: a memory for storing computer instructions; a controller for invoking and executing computer instructions stored in the memory to implement a control method of a laundry machine as in any one of the preceding.
The embodiment of the invention also provides a washing machine, referring to the structural schematic diagrams of the washing machine in fig. 4 and 5, the washing machine of the embodiment comprises a sensor 1, the sensor 1 is an attitude sensor, the attitude sensor is installed on the outer wall of a clothes treatment drum 2 of the washing machine, and the sensor 1 is used for detecting motion attitude data of the clothes treatment drum 2; the washing machine adopts the control method of the washing machine as any one of the above; alternatively, the washing machine comprises a control device of the washing machine as described above.
Further alternatively, the sensor 1 is mounted on a line of the outer wall of the laundry treatment drum 2 perpendicular to the central axis of the laundry treatment drum 2.
Those skilled in the art can understand that the sensor 1 has a large signal quantity and high cost, and if a low-cost design is adopted, an angle sensor and/or a three-axis acceleration sensor can be adopted to replace the source of the signal, and the control mode is performed according to the control scheme.
The control method according to the embodiment of the present invention is further described with reference to fig. 6 and 7. Referring to fig. 6, the sensor 1 is applied to a clothes distribution stage before dehydration, the sensor 1 is used for detecting a motion attitude of a clothes treatment drum of the washing machine, the motion attitude data is fed back to the master control system, and the master control system compares the motion attitude data with reference data during stable operation of the system after receiving the motion attitude data, and determines a shaking amplitude of the clothes treatment drum of the washing machine, so that motion parameters (including two parameters of a rotating speed and an acceleration) of the clothes treatment drum are dynamically adjusted in real time.
In the clothes distribution stage, the rotation speed variation interval of the clothes treatment drum is [0rpm,93rpm ], and the acceleration variation interval is [5rpm/s,25rpm/s ]; when the rotation speed and acceleration are changed, the rotation speed is set to be in a range of [35rpm,60rpm ], and the acceleration is set to be in a range of [5rpm/s,25rpm/s ]. Wherein the sensor 1 is in an operating state when the rotation speed of the laundry treating drum is at [0rpm,60rpm ], and the sensor 1 is in a non-operating state when the rotation speed of the laundry treating drum is at (60rpm, 93rpm.) the following table 1 is specifically shown:
TABLE 1
| Interval of rotation speed | Interval of acceleration | Time of detection | Sensor state |
| 0～60rpm | 5～25rpm/s | 3 to 5 seconds | Working state |
| 60～93rpm | 6rpm/s (fixed) | / | Non-operating state |
After washing, because the amount of clothes and the state of the clothes are uncertain, the clothes processing drum is controlled to enter a clothes distribution stage at a first set rotating speed of 50rpm and a first set acceleration of 25rpm/s according to the default that the clothes are common clothes and the amount of the clothes is about half or more of the washing capacity, and subsequent changes of the rotating speed and the acceleration are increased or reduced on the basis. In the clothes distribution stage, when the sensor 1 is in a working state and the detected motion posture is in a stable state, the rotation speed and the acceleration do not need to be changed, and the eccentric detection stage is operated according to the current state. If the current clothes distribution state accords with the current eccentricity detection, the clothes distribution state is executed according to the eccentricity control, and if the clothes distribution state does not accord with the current eccentricity detection, the clothes distribution stage is required to be entered again according to the current set rotating speed and set acceleration for trial again. When the detected motion posture is unstable in the trial again, the rotation speed and the acceleration are changed according to the control flow of fig. 7.
When the rotating speed and the acceleration are both reduced to the corresponding lowest set values, the rotating speed and the acceleration are not changed any more, and the operation is carried out according to the current state.
When the rotating speed and the acceleration change, the change of the rotating speed and the acceleration is directly set on the basis of the current set value, the current rotating speed is directly converted into a new set rotating speed, and the new rotating speed cannot be reset after the current rotating speed is operated to 0. For example, if the absolute value of the difference between the calculated data of the sensor 1 and the stability threshold is greater than 50, the new set speed is 49rpm, and the new set acceleration is 25rpm/s, and the detection is continued on the basis of the difference between the calculated data of the sensor 1 and the stability threshold being less than 50 and greater than 20, the new set speed is 48rpm, and the new set acceleration is 24rpm/s.
Preferably, the laundry treating drum 2 of the present embodiment has an inner drum and an outer drum, and the posture sensor is provided on an outer wall of the outer drum.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (13)
1. A control method of a washing machine, characterized in that the washing machine is provided with a laundry distribution phase, the control method comprising:
in the clothes distribution stage, acquiring motion attitude data of a clothes treatment drum of the washing machine by utilizing an attitude sensor;
dynamically adjusting the operation parameters of the clothes treatment drum of the washing machine according to the motion attitude data of the clothes treatment drum of the washing machine so as to enable the motion attitude of the clothes treatment drum of the washing machine to be stable;
the adjusting the operation parameters of the laundry treatment drum of the washing machine according to the motion posture data of the laundry treatment drum of the washing machine comprises:
judging whether the motion attitude of a clothes processing drum of the washing machine is stable or not according to the motion attitude data;
if the motion attitude of a clothes treatment drum of the washing machine is not stable, subtracting a preset rotation speed increment corresponding to the interval to which the motion attitude data belongs from the current set rotation speed of the clothes treatment drum to obtain a new set rotation speed, and subtracting a preset acceleration increment corresponding to the interval to which the motion attitude data belongs from the current set acceleration of the clothes treatment drum to obtain a new set acceleration, wherein the preset rotation speed increment is greater than 0, and the preset acceleration increment is greater than or equal to 0;
judging whether the new set rotating speed is reduced to a second set rotating speed or not, and whether the new set acceleration is reduced to a second set acceleration or not;
if not, operating at the new set rotating speed and the new set acceleration, and re-executing the step of judging whether the operating state of the clothes processing drum of the washing machine is stable according to the motion posture data.
2. The control method of a washing machine according to claim 1,
the operating parameters include rotational speed and/or acceleration.
3. The control method of a washing machine according to claim 1,
the laundry distributing stage is disposed after the washing stage and before the eccentricity detecting stage.
4. The control method of a washing machine according to claim 1, further comprising:
after the washing stage is finished, controlling the clothes processing drum to operate at a first set rotating speed and a first set acceleration, and entering the clothes distribution stage.
5. The control method of a washing machine according to claim 1, further comprising:
and if the new set rotating speed is reduced to the second set rotating speed, the new set acceleration is reduced to the second set acceleration, and the operation is carried out at the second set rotating speed and the second set acceleration until the eccentric detection stage is started.
6. The control method of a washing machine according to claim 1,
and if the motion posture of the clothes treatment drum of the washing machine is judged to be stable, keeping the current set rotating speed and set acceleration.
7. The control method of a washing machine according to claim 5 or 6, further comprising:
when the washing machine enters an eccentricity detection stage, acquiring a clothes eccentricity value of the clothes treatment drum;
if the clothing eccentricity value meets the preset eccentricity condition, the clothing is considered to be in a uniform distribution state;
and if the clothes eccentricity value does not accord with the preset eccentricity condition, controlling the clothes treatment drum to enter the clothes distribution stage again at the current set rotating speed and set acceleration.
8. The control method of a washing machine as claimed in claim 1, wherein determining whether a laundry treatment drum of the washing machine is in a stable state according to the motion posture data comprises:
calculating the absolute value of the difference value of the motion attitude data and a preset stability threshold value;
judging whether the absolute value of the difference value is less than or equal to a first threshold value;
if so, determining that the clothes processing drum of the washing machine is in the stable state;
if not, the clothes processing drum of the washing machine is not in the stable state.
9. The control method of a washing machine according to claim 8,
when the absolute value of the difference is larger than a second threshold value, the preset rotation speed increment corresponding to the interval is a first rotation speed increment, and the preset acceleration increment is 0;
and when the absolute value of the difference is smaller than or equal to the second threshold and larger than the first threshold, the preset rotation speed increment corresponding to the interval is a second rotation speed increment, and the preset acceleration increment is a first acceleration increment larger than 0.
10. The control method of a washing machine according to claim 1,
in the clothes distribution stage, the rotating speed change interval is as follows: greater than or equal to 0rpm and less than or equal to 93rpm; the acceleration change interval is as follows: greater than or equal to 5rpm/s and less than or equal to 25rpm/s;
wherein the attitude sensor is in an operating state when the rotation speed of the laundry treating drum is greater than or equal to 0rpm and less than or equal to 60rpm, and the attitude sensor is in a non-operating state when the rotation speed of the laundry treating drum is greater than 60rpm and less than or equal to 93 rpm.
11. The control method of a washing machine according to claim 1, wherein the acquiring motion posture data of the laundry treating drum of the washing machine using the sensor comprises:
acquiring motion attitude data of a clothes treatment drum of the washing machine once by using the attitude sensor every preset time interval, wherein the value range of the preset time interval is as follows: greater than or equal to 3s and less than or equal to 5s.
12. A control apparatus of a washing machine, characterized by comprising:
a memory for storing computer instructions;
a controller for invoking and executing computer instructions stored in the memory to implement a control method of a laundry machine according to any one of claims 1-11.
13. A washing machine is characterized in that the washing machine comprises a washing machine body,
the washing machine comprises an attitude sensor which is arranged on the outer wall of a clothes processing drum and is used for detecting motion attitude data of the clothes processing drum of the washing machine;
the washing machine adopts a control method of the washing machine according to any one of claims 1 to 11; or the like, or a combination thereof,
the washing machine includes a control device of the washing machine as claimed in claim 12.
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| KR102270515B1 (en) * | 2014-09-16 | 2021-06-29 | 삼성전자주식회사 | Washing machine and controlling method thereof |
| CN108796992B (en) * | 2018-08-24 | 2023-01-13 | 青岛海尔洗衣机有限公司 | Control method of washing machine and washing machine |
| CN110670301B (en) * | 2019-08-29 | 2022-03-11 | 无锡小天鹅电器有限公司 | Drum washing machine, control method and control device thereof and storage medium |
| CN113046999A (en) * | 2019-12-26 | 2021-06-29 | 青岛海尔洗衣机有限公司 | Washing apparatus and dewatering method thereof |
| CN113089256B (en) * | 2021-03-22 | 2022-03-01 | 珠海格力电器股份有限公司 | Washing machine dehydration control method and washing machine |
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