CN108823899B - Washing machine and control method thereof - Google Patents
Washing machine and control method thereof Download PDFInfo
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- CN108823899B CN108823899B CN201810869191.3A CN201810869191A CN108823899B CN 108823899 B CN108823899 B CN 108823899B CN 201810869191 A CN201810869191 A CN 201810869191A CN 108823899 B CN108823899 B CN 108823899B
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- 238000005406 washing Methods 0.000 title claims abstract description 182
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000001133 acceleration Effects 0.000 claims abstract description 98
- 230000018044 dehydration Effects 0.000 claims abstract description 56
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 56
- 238000012937 correction Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
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- 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)
- Control Of Washing Machine And Dryer (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The invention discloses a washing machine and a control method thereof, wherein the washing machine judges whether an inner barrel is in an eccentric state according to the load weight in the inner barrel and the acceleration duration of the inner barrel accelerated to a preset dehydration speed, and controls the washing machine to execute an eccentric correction operation when the inner barrel is judged to be in the eccentric state.
Description
Technical Field
The invention belongs to the field of household appliances, and particularly relates to a washing machine and a control method thereof.
Background
The existing top-opening full-automatic washing machine generally adopts a tub collision switch, and when the washing machine has dehydration eccentricity, tub collision can be within effective times, and eccentricity correction is executed. However, if the number of times of the eccentricity is exceeded, the laundry machine may alarm for eccentricity. By arranging the barrel collision switch or other detection devices on the washing machine, the phenomenon that a rod cannot be collided when the washing machine eccentrically dehydrates and a box body cannot be collided at high speed or seriously due to dehydration exists. But also increases the cost of the washing machine.
The patent with the application number of CN201520495247.5 provides a washing machine safety switch and a washing machine, wherein the washing machine safety switch comprises a base box, a switch trigger, an upper reed and a lower reed which are fixedly arranged in the base box; the base box is provided with a mounting seat at the box bottom, and an accommodating cavity with a spherical surface-shaped cavity surface is arranged in the mounting seat; the switch trigger piece comprises a striker rod penetrating through the bottom of the accommodating cavity and a trigger head accommodated in the accommodating cavity; the trigger head is provided with a supporting surface which is adaptive to and attached to the surface of the accommodating cavity and a trigger surface which faces the upper reed; the impact bar is connected to the supporting surface; the upper spring plate is provided with a trigger plate opposite to the trigger surface. The utility model discloses among the technical scheme, when the lance received the lateral impact power, the lance can drive the chamber face rotation that the holding chamber was closed to the holding face, and made the edge touching trigger plate of trigger face to the reed is gone up in the jack-up and is connected between reed and the lower reed on the disconnection, and then the disconnection signal of telecommunication, protection washing machine's security. The patent is only an example of the eccentric control design of the anti-collision barrel of the existing washing machine, detection devices are required to be arranged in the washing machine in the technologies to detect whether the washing machine generates an eccentric phenomenon or not, and then corresponding correction operation is carried out, the detection devices are complex in structure, the cost of the washing machine is directly increased, and the internal structure of the washing machine is complex and redundant.
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 of a washing machine, wherein the actual acceleration duration of the inner barrel accelerated to the preset dehydration speed is detected, and when the actual acceleration duration exceeds the set range, the washing machine automatically carries out eccentric correction operation, so that the state of the washing machine can be fed back more intelligently and conveniently, and meanwhile, a barrel collision switch of the washing machine is cancelled, and the cost of the washing machine is greatly reduced.
In order to solve the technical problems, the invention adopts the technical scheme that:
a control method of a washing machine, comprising: the washing machine judges whether the inner tub is in an eccentric state according to the load weight in the inner tub and the acceleration duration of the inner tub accelerated to a preset dehydration speed, and controls the washing machine to execute an eccentric correction operation when the inner tub is judged to be in the eccentric state.
In the scheme, the washing machine is not provided with the tub collision switch, and the eccentric correction operation is automatically carried out according to two parameters of load weight and actual dehydration acceleration time, so that the state of the washing machine can be fed back more intelligently and conveniently, the tub collision switch of the washing machine is cancelled, and the cost of the washing machine is greatly reduced.
Preferably, different load weights of the inner barrel correspond to different safe acceleration durations that the inner barrel is not eccentric and can be accelerated to the preset dehydration speed in a balanced manner, the washing machine judges whether the inner barrel is in an eccentric state or not according to the relation between the actual acceleration duration when the inner barrel is accelerated to the preset dehydration speed and the safe acceleration duration, and controls the washing machine to execute eccentric correction operation when the inner barrel is judged to be in the eccentric state.
In the above scheme, different load weights of the inner tub correspond to different safe acceleration durations, and if the actual acceleration duration corresponding to a certain load weight is not matched with the safe acceleration duration corresponding to the load weight, it is determined that the inner tub has abnormal motion, that is, an eccentric state occurs, and at this time, the washing machine controls to execute an eccentric correction operation.
Preferably, the washing machine stores a corresponding relationship between each load weight and a safe acceleration duration that the inner tub is not eccentric and can be accelerated to a preset dehydration speed in a balanced manner; the washing machine judges whether the actual weight of the load in the inner barrel and the actual acceleration duration of the inner barrel are matched with the stored corresponding relation or not, if yes, the current dehydration process is kept, otherwise, the inner barrel is judged to be in an eccentric state, and the washing machine is controlled to execute eccentric correction operation.
In the scheme, the corresponding relation between the load weight and the safe acceleration time is stored in the washing machine in advance, the washing machine directly judges the current state of the washing machine according to the corresponding relation, and then the washing machine is controlled to execute corresponding operation.
Preferably, the corresponding relationship includes dividing the load weight into a plurality of different load weight ranges, and the different load weight ranges correspond to different safe acceleration duration ranges; the washing machine acquires a corresponding safe acceleration duration range according to a load weight range in which the actual weight of the load in the inner barrel is located, the washing machine judges whether the actual acceleration duration of the inner barrel is within the acquired safe acceleration duration range, if so, the current dehydration process is kept to be executed, otherwise, the eccentricity correction operation is executed.
In the scheme, the corresponding relation is the corresponding relation between different load weight ranges and the safe acceleration duration range, the corresponding relations are summarized in a large number of experiments by the inventor, and the dehydration is more reasonable to control through setting the range.
Preferably, the corresponding relationship comprises a corresponding relationship between different proportion ranges of the load weight accounting for the full load of the washing machine and a safe acceleration duration range; the washing machine acquires a corresponding safe acceleration duration range according to the proportion of the current load weight to the full load of the washing machine, judges whether the actual acceleration duration range of the inner barrel is within the acquired safe acceleration duration range, if so, keeps the current dehydration process, otherwise, executes an eccentric correction operation;
preferably, the washing machine has a full load weight of M, and the correspondence relationship includes: the washing machine load 0-30-M corresponds to the safe acceleration period range T1-T2, the washing machine load 30-60-M corresponds to the safe acceleration period range T3-T4, and the washing machine load 60-M corresponds to the safe acceleration period range T5-T6.
The scheme is only a better implementation mode, and the more the load weight range of the washing machine is established in principle, the more accurate the detection control effect is, and the adjustment can be carried out according to the actual situation. According to a lot of experiments, we conclude that the full load weight of the washing machine is divided into three load ranges, namely the safe control of the dehydration process can be ensured, and particularly, the selection of the proportion ranges (30 percent and 60 percent) is the labor achievement of the inventor in a lot of practice.
Preferably, the method for obtaining the corresponding relationship includes: respectively acquiring the safe acceleration time length range of the washing machine which can be accelerated to the preset dehydration speed in a balanced manner without eccentricity of the inner barrel under different load weight ranges, and storing the corresponding relation between the load weight range and the safe acceleration time length range in the washing machine.
In the scheme, the acquisition of the corresponding relation is established by washing machine experts in a large number of tests, and the established corresponding relation is stored on the washing machine and called by a controller of the washing machine.
Preferably, the performing of the eccentricity correction operation includes: the washing machine controls the motor to drive the impeller to rotate forward and backward so as to shake and disperse clothes in the inner barrel;
preferably, the washing machine controls the motor to drive the impeller to rotate forward and backward for a certain number of times/duration to shake away the clothes in the inner barrel.
In the scheme, the state of the clothes is changed by shaking the clothes, so that the phenomenon of eccentricity is avoided when the inner barrel is dewatered and accelerated again.
Preferably, the performing the eccentricity correction operation further includes: the washing machine controls water intake before the motor is controlled to drive the impeller to rotate forwards and backwards, and controls water discharge after the impeller rotates forwards and backwards for certain times/duration.
Preferably, the control method includes the following steps:
s1, weighing the actual load weight of an inner barrel by the washing machine, and determining a corresponding safe acceleration duration range;
s2, the washing machine controls the inner barrel to accelerate to a preset dehydration speed, records the actual acceleration duration of the process, judges whether the actual acceleration duration is within the range of the safe acceleration duration, if so, the step S4 is executed, otherwise, the step S3 is executed;
s3, the washing machine executes an eccentricity correction operation and enters the step S2;
and S4, continuing to perform the dehydration process by the washing machine until the dehydration is finished.
Another object of the present invention is to provide a washing machine, comprising:
an inner tub for containing laundry;
the motor is in driving connection with the inner barrel and drives the inner barrel to rotate;
and the controller is electrically connected with the motor, controls the motor to drive the inner barrel to accelerate to a preset dehydration speed, judges whether the inner barrel is in an eccentric state or not according to the load weight in the inner barrel and the acceleration duration of the inner barrel accelerating to the preset dehydration speed, and controls to execute eccentric correction operation when the inner barrel is judged to be in the eccentric state.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the invention provides a washing machine and a control method thereof, wherein the washing machine judges whether an inner barrel is in an eccentric state according to the load weight in the inner barrel and the acceleration time of the inner barrel accelerating to a preset dehydration speed, and controls the washing machine to execute an eccentric correction operation when judging that the inner barrel is in the eccentric state; the design of the invention can not cause the phenomena that the prior washing machine eccentrically dehydrates, but can not collide with a rod, can not dehydrate at high speed, or seriously collides with a box body, and the like.
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 control logic diagram of a control method of a washing machine according to the present invention.
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 order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
Example one
The embodiment provides a control method of a washing machine, comprising the following steps: the washing machine judges whether the inner tub is in an eccentric state according to the load weight in the inner tub and the acceleration duration for accelerating the inner tub to a preset dehydration speed, and controls the washing machine to perform an eccentric correction operation when judging that the inner tub is in the eccentric state.
In the scheme, the washing machine is not provided with the tub collision switch, and the eccentric correction operation is automatically carried out according to two parameters of load weight and actual dehydration acceleration time, so that the state of the washing machine can be fed back more intelligently and conveniently, the tub collision switch of the washing machine is cancelled, and the cost of the washing machine is greatly reduced.
Preferably, different load weights of the inner barrel correspond to different safe acceleration durations that the inner barrel is not eccentric and can be accelerated to the preset dehydration speed in a balanced manner, the washing machine judges whether the inner barrel is in an eccentric state or not according to the relation between the actual acceleration duration when the inner barrel is accelerated to the preset dehydration speed and the safe acceleration duration, and controls the washing machine to execute eccentric correction operation when the inner barrel is judged to be in the eccentric state.
In the above scheme, different load weights of the inner tub correspond to different safe acceleration durations, and if the actual acceleration duration corresponding to a certain load weight is not matched with the safe acceleration duration corresponding to the load weight, it is determined that the inner tub has abnormal motion, that is, an eccentric state occurs, and at this time, the washing machine controls to execute an eccentric correction operation.
Preferably, the washing machine stores a corresponding relationship between each load weight and a safe acceleration duration that the inner tub is not eccentric and can be accelerated in a balanced manner to a preset dehydration speed; the washing machine judges whether the actual weight of the load in the inner barrel and the actual acceleration duration of the inner barrel are matched with the stored corresponding relation or not, if yes, the current dehydration process is kept, otherwise, the inner barrel is judged to be in an eccentric state, and the washing machine is controlled to execute eccentric correction operation.
In the scheme, the corresponding relation between the load weight and the safe acceleration duration is stored in the washing machine in advance, the washing machine directly judges the current state of the washing machine according to the corresponding relation, and then the washing machine is controlled to execute corresponding operation.
Preferably, the corresponding relationship includes dividing the load weight into a plurality of different load weight ranges, and the different load weight ranges correspond to different safe acceleration duration ranges; the washing machine acquires a corresponding safe acceleration duration range according to a load weight range in which the actual weight of the load in the inner barrel is located, the washing machine judges whether the actual acceleration duration of the inner barrel is within the acquired safe acceleration duration range, if so, the current dehydration process is kept to be executed, otherwise, the eccentricity correction operation is executed.
In the scheme, the corresponding relation is the corresponding relation between different load weight ranges and the safe acceleration time length range, the corresponding relations are summarized in a large number of experiments by the inventor, and the dehydration is more reasonably controlled through setting the range.
Preferably, the corresponding relationship comprises a corresponding relationship between different proportion ranges of the load weight in the full load of the washing machine and the safe acceleration duration range; the washing machine acquires a corresponding safe acceleration duration range according to the proportion of the current load weight to the full load of the washing machine, judges whether the actual acceleration duration range of the inner barrel is within the acquired safe acceleration duration range, if so, keeps the current dehydration process, otherwise, executes an eccentric correction operation;
preferably, the washing machine has a full load weight of M, and the correspondence relationship includes: the washing machine load 0-30-M corresponds to the safe acceleration period range T1-T2, the washing machine load 30-60-M corresponds to the safe acceleration period range T3-T4, and the washing machine load 60-M corresponds to the safe acceleration period range T5-T6.
The scheme is only a better implementation mode, and the more the load weight range of the washing machine is established in principle, the more accurate the detection control effect is, and the adjustment can be carried out according to the actual situation. According to a lot of experiments, we conclude that the full load weight of the washing machine is divided into three load ranges, namely the safe control of the dehydration process can be ensured, and particularly, the selection of the proportion ranges (30 percent and 60 percent) is the labor achievement of the inventor in a lot of practice.
Preferably, the method for acquiring the corresponding relationship includes: respectively acquiring the safe acceleration time length range of the washing machine which can be accelerated to the preset dehydration speed in a balanced manner without eccentricity of the inner barrel under different load weight ranges, and storing the corresponding relation between the load weight range and the safe acceleration time length range in the washing machine.
In the scheme, the acquisition of the corresponding relation is established by a washing machine expert in a large number of tests, and the established corresponding relation is stored on the washing machine and called by a controller of the washing machine.
In another scheme, the washing machine comprises a communication module, the washing machine is connected to a server through the communication module, the server stores the data packet of the corresponding relation, the washing machine downloads the data packet of the corresponding relation from the server, a service party can update the data packet periodically, or the service party can store various different data packets on the server, and a user can download and use the corresponding data packets according to actual requirements.
Preferably, the performing of the eccentricity correction operation includes: the washing machine controls the motor to drive the impeller to rotate forward and backward so as to shake and disperse clothes in the inner barrel;
preferably, the washing machine controls the motor to drive the impeller to rotate forward and backward for a certain number of times/duration to shake and disperse the clothes in the inner barrel.
In the scheme, the state of the clothes is changed by shaking the clothes, so that the phenomenon of eccentricity is avoided when the inner barrel is dewatered again and accelerated.
Preferably, the performing the eccentricity correction operation further includes: the washing machine controls water intake before the motor is controlled to drive the impeller to rotate forward and backward, and controls water discharge after the impeller rotates forward and backward for certain times/duration.
Preferably, referring to fig. 1, the control method includes the following steps:
s1, weighing the actual load weight of an inner barrel by the washing machine, and determining a corresponding safe acceleration duration range;
s2, the washing machine controls the inner barrel to accelerate to a preset dehydration speed, records the actual acceleration duration of the process, judges whether the actual acceleration duration is within the range of the safe acceleration duration, if so, the step S4 is executed, otherwise, the step S3 is executed;
s3, the washing machine executes an eccentricity correction operation and enters the step S2;
and S4, continuing to perform the dehydration process by the washing machine until the dehydration is finished.
Furthermore, the highest execution times of an eccentric correction operation can be increased, and when the washing machine repeatedly executes the eccentric correction operation which finally reaches the highest execution times for many times, the actual acceleration duration of the inner barrel still deviates from the safe acceleration duration range, the washing machine does not execute the correction operation and directly gives an alarm to prompt a user.
Example two
Another object of the present invention is to provide a washing machine, comprising:
an inner tub for containing laundry;
the motor is in driving connection with the inner barrel and drives the inner barrel to rotate;
and the controller is electrically connected with the motor, controls the motor to drive the inner barrel to accelerate to a preset dehydration speed, judges whether the inner barrel is in an eccentric state or not according to the load weight in the inner barrel and the acceleration duration of the inner barrel accelerating to the preset dehydration speed, and controls to execute eccentric correction operation when the inner barrel is judged to be in the eccentric state.
Preferably, the motor is a fixed frequency motor.
Further, the washing machine further comprises a data storage for storing the corresponding relationship established in the first embodiment for the controller to call.
EXAMPLE III
The third embodiment provides a washing machine and a control method thereof, wherein the washing machine is a variable frequency washing machine, and the variable frequency washing machine includes:
an inner tub for containing laundry;
the variable frequency motor is in driving connection with the inner barrel;
the variable frequency driver is electrically connected with the variable frequency motor;
the embodiment provides a control method of the washing machine, and the washing machine judges whether the inner barrel is in an eccentric state or not according to three conditions of the weight of the load in the inner barrel, the current value fed back by the variable-frequency driver and the acceleration duration of the inner barrel when the inner barrel is accelerated to a preset dehydration speed.
Different load weights of the inner barrel correspond to the different safe acceleration time lengths when the inner barrel is not eccentric and can be accelerated to the preset dehydration speed in a balanced mode, the washing machine judges whether the inner barrel is in an eccentric state or not according to the actual acceleration time length when the inner barrel is accelerated to the preset dehydration speed and the current value fed back by the variable frequency driver, and under the same load weight, when one of the current value fed back by the variable frequency driver and the acceleration time length applied by the inner barrel is not in accordance with the condition, the inner barrel is judged to be in the eccentric state.
Preferably, different load weights of the inner barrel correspond to different safe current values of the inner barrel, which are not eccentric, the washing machine determines whether the inner barrel is in an eccentric state according to whether the current value fed back by the current variable frequency driver is matched with the safe current value corresponding to the load weight and whether the actual acceleration duration of the inner barrel is matched with the corresponding safe acceleration duration, and when any one of the current value and the safe current value is not matched with the corresponding safe acceleration duration, the inner barrel is judged to be in the eccentric state, and the eccentric correction operation is controlled to be executed.
In the above scheme, different load weights correspond to different safe current values, if the current value fed back by the actual variable frequency driver corresponding to a certain load weight is not matched with the safe current value, it is determined that the inner tub has abnormal motion, that is, an eccentric state occurs, and at this time, the washing machine controls to execute an eccentric correction operation.
Preferably, the washing machine stores the corresponding relation between each load weight and the corresponding safe current value;
in the scheme, the corresponding relation between the load weight and the safe current value and the corresponding relation between the load weight and the safe acceleration duration are stored in the washing machine in advance, and the washing machine directly judges the current state of the washing machine according to the two corresponding relations.
Preferably, the corresponding relationship between the load weight and the safe current value includes that the load weight is divided into a plurality of different load weight ranges, and the different load weight ranges correspond to different safe current ranges; the washing machine obtains a corresponding safe current range according to the load weight range where the actual weight of the load in the inner barrel is located, judges whether the current value fed back by the variable frequency driver is in the safe current range, and controls to execute the eccentric correction operation if the current value is not in the safe current range.
In the scheme, the corresponding relation is the corresponding relation between different load weight ranges and safe current ranges, the corresponding relations are summarized in a large number of experiments by the inventor, and the dehydration is more reasonably controlled by setting the ranges.
Preferably, the corresponding relationship between the load weight and the safe current value comprises the corresponding relationship between different proportion ranges of the load weight to the full load of the washing machine and the safe current range; the washing machine acquires a corresponding safe current range according to the proportion of the current load weight to the full load of the washing machine, judges whether the current fed back by the variable frequency driver is in the safe current range, and executes an eccentricity correction operation if the current fed back by the variable frequency driver is not in the safe current range.
Preferably, the washing machine has a full load weight of M, and the correspondence relationship includes: the washing machine load 0-30-M corresponds to a safe current range of I1-I2, the washing machine load 30-60-M corresponds to a safe current range of I3-I4, and the washing machine load 60-M corresponds to a safe current range of I5-I6.
The scheme is only a better implementation mode, and the more the load weight range of the washing machine is established in principle, the more accurate the detection control effect is, and the adjustment can be carried out according to the actual situation. According to a lot of experiments, we conclude that the full load weight of the washing machine is divided into three load ranges, namely the safe control of the dehydration process can be ensured, and particularly, the selection of the proportion ranges (30 percent and 60 percent) is the labor achievement of the inventor in a lot of practice.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A control method of a washing machine is characterized in that the washing machine judges whether an inner barrel is in an eccentric state according to the load weight in the inner barrel and the acceleration duration of the inner barrel accelerated to a preset dehydration speed, and controls the washing machine to execute an eccentric correction operation when the inner barrel is judged to be in the eccentric state;
different load weights of the inner barrel correspond to different safe acceleration durations that the inner barrel is not eccentric and can be accelerated to a preset dehydration speed in a balanced manner, the washing machine judges whether the inner barrel is in an eccentric state according to the relation between the actual acceleration duration of the inner barrel accelerated to the preset dehydration speed and the safe acceleration duration, and controls the washing machine to execute eccentric correction operation when the inner barrel is judged to be in the eccentric state;
or the washing machine stores the corresponding relation between each load weight and the safe acceleration duration that the inner barrel is not eccentric and can be accelerated to the preset dehydration speed in a balanced manner; the washing machine judges whether the actual weight of the load in the inner barrel and the actual acceleration duration of the inner barrel are matched with the stored corresponding relation or not, if yes, the current dehydration process is kept, otherwise, the inner barrel is judged to be in an eccentric state, and the washing machine is controlled to execute eccentric correction operation;
the washing machine is a variable frequency washing machine, the washing machine acquires a current value fed back by a current variable frequency driver, the washing machine judges whether the current value is matched with a safe current value corresponding to the load weight, if the current value is matched with the safe current value, the current dehydration process is kept, and if the current value is not matched with the safe current value, the inner barrel is judged to be in an eccentric state, and the washing machine is controlled to execute an eccentric correction operation;
the corresponding relation comprises that the load weight is divided into a plurality of different load weight ranges, and the different load weight ranges correspond to different safe acceleration duration ranges; the washing machine acquires a corresponding safe acceleration duration range according to a load weight range where the actual weight of the load in the inner barrel is located, judges whether the actual acceleration duration of the inner barrel is within the acquired safe acceleration duration range, if so, keeps executing the current dehydration process, otherwise, executes an eccentricity correction operation;
the washing machine comprises a communication module, wherein the communication module can be connected with a server and downloads a data packet of the corresponding relation which is stored on the server and is updated regularly to the washing machine.
2. The control method of a washing machine as claimed in claim 1, wherein the correspondence includes correspondence of a range of different ratios of a load weight to a full load of the washing machine to a range of a safe acceleration period; the washing machine acquires a corresponding safe acceleration duration range according to the proportion of the current load weight to the full load of the washing machine, judges whether the actual acceleration duration range of the inner barrel is within the acquired safe acceleration duration range, if so, keeps the current dehydration process, otherwise, executes the eccentricity correction operation.
3. A control method of a washing machine as claimed in claim 2, wherein the washing machine has a full load weight of M, and said correspondence relationship comprises: the washing machine load 0-X% M corresponds to a safe acceleration period range T1-T2, the washing machine load 30-M-60% M corresponds to a safe acceleration period range T3-T4, and the washing machine load 60% M-M corresponds to a safe acceleration period range T5-T6.
4. A control method of a washing machine according to any one of claims 1-3, characterized in that the method of obtaining the correspondence comprises: respectively acquiring the safe acceleration time length range of the washing machine which can be accelerated to the preset dehydration speed in a balanced manner without eccentricity of the inner barrel under different load weight ranges, and storing the corresponding relation between the load weight range and the safe acceleration time length range in the washing machine.
5. The control method of a washing machine as claimed in claim 4, wherein the performing of the eccentricity correction operation comprises: the washing machine controls the motor to drive the impeller to rotate forward and backward so as to shake and disperse clothes in the inner barrel.
6. The control method of a washing machine as claimed in claim 5, wherein the washing machine controls the motor to drive the pulsator to rotate forward and backward for a predetermined number of times and/or duration to shake up the laundry in the inner tub.
7. The control method of a washing machine as claimed in claim 6, wherein the performing the eccentricity correction operation further comprises: the washing machine controls water intake before the motor is controlled to drive the impeller to rotate forward and backward, and controls water discharge after the impeller rotates forward and backward for certain times/duration.
8. The control method of a washing machine as claimed in claim 7, comprising the steps of:
s1, weighing the actual load weight of an inner barrel by the washing machine, and determining a corresponding safe acceleration duration range;
s2, the washing machine controls the inner barrel to accelerate to a preset dehydration speed, records the actual acceleration duration of the process, judges whether the actual acceleration duration is within the range of the safe acceleration duration, if so, the step S4 is executed, otherwise, the step S3 is executed;
s3, the washing machine executes an eccentricity correction operation and enters the step S2;
and S4, continuing to perform the dehydration process by the washing machine until the dehydration is finished.
9. A washing machine characterized by being controlled by the control method according to any one of claims 1 to 8;
the washing machine includes: an inner tub for containing laundry;
the motor is in driving connection with the inner barrel and drives the inner barrel to rotate;
and the controller is electrically connected with the motor, controls the motor to drive the inner barrel to accelerate to a preset dehydration speed, judges whether the inner barrel is in an eccentric state or not according to the load weight in the inner barrel and the acceleration duration of the inner barrel accelerating to the preset dehydration speed, and controls to execute eccentric correction operation when the inner barrel is judged to be in the eccentric state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869191.3A CN108823899B (en) | 2018-08-02 | 2018-08-02 | Washing machine and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810869191.3A CN108823899B (en) | 2018-08-02 | 2018-08-02 | Washing machine and control method thereof |
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| CN111172709A (en) * | 2019-01-04 | 2020-05-19 | 青岛海尔洗衣机有限公司 | Control method of washing machine and washing machine |
| CN111485364B (en) * | 2019-01-25 | 2022-03-22 | 无锡小天鹅电器有限公司 | Control method and device of top-opening washing machine and top-opening washing machine |
| CN111733564B (en) * | 2019-03-22 | 2022-09-16 | 无锡小天鹅电器有限公司 | Washing machine rotating speed control method and device, storage medium and washing machine |
| CN111058228B (en) * | 2019-12-31 | 2024-06-14 | 合肥海尔滚筒洗衣机有限公司 | Dewatering control method for washing equipment |
| CN110965260B (en) * | 2019-12-31 | 2024-06-18 | 合肥海尔滚筒洗衣机有限公司 | Dewatering control method for washing equipment |
| CN113862959B (en) * | 2020-06-30 | 2023-03-14 | 美的威灵电机技术（上海）有限公司 | Control method and control device of clothes treatment equipment and clothes treatment equipment |
| CN114855420A (en) * | 2022-04-29 | 2022-08-05 | 无锡飞翎电子有限公司 | Dehydration control method, system, device and storage medium for clothes processing device |
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Effective date of registration: 20230220 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. |
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