CN105951359B - Dehydration controlling method, device and the washing machine of washing machine - Google Patents
Dehydration controlling method, device and the washing machine of washing machine Download PDFInfo
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- CN105951359B CN105951359B CN201610515301.7A CN201610515301A CN105951359B CN 105951359 B CN105951359 B CN 105951359B CN 201610515301 A CN201610515301 A CN 201610515301A CN 105951359 B CN105951359 B CN 105951359B
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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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- 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
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
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- D06F2204/065—
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- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses a kind of dehydration controlling method of washing machine, device and washing machine, this method to include the following steps：When performing dehydration procedure, the acceleration of the rotating speed and dehydration barrel of dehydration barrel on direction of vibration is acquired in real time；According to the vibration displacement amount of rotating speed and acceleration calculation dehydration barrel on direction of vibration；When the rotating speed of dehydration barrel reaches resonance point rotating speed, judge whether vibration displacement amount is more than the corresponding preset displacement threshold value of resonance point rotating speed；If it is, control washing machine carries out shaking loose work；If it is not, then control dehydration barrel rotating speed improve to stablize gear rotating speed operation, and judge vibration displacement amount whether be more than stablize the corresponding preset displacement threshold value of gear rotating speed；If vibration displacement amount, which is less than or equal to, stablizes the corresponding preset displacement threshold value of gear rotating speed, the rotating speed of dehydration barrel is controlled to continue to improve to next stable gear rotating speed operation.According to the method for the present invention, the vibration at high speed of dehydration barrel can be effectively reduced, so as to shorten dewatering time and improves dehydrating effect.
Description
Technical field
The present invention relates to washing technical field of electric appliances, more particularly to a kind of dehydration controlling method of washing machine, a kind of laundries
The dehydration control apparatus of machine and a kind of washing machine.
Background technology
During barrel washing machine dehydration, when roller undergarment is unevenly distributed, roller washing machine is caused to generate larger vibration,
This serious vibration influences user's impression, and reduces the service life of roller washing machine.There is roller washing machine motor detection to load
Unbalanced function when detecting imbalance, by adjusting rotating speed or can readjust load distribution, make roller washing machine
It vibrates and reduces during dehydration.
At present, there are two ways to laundry drum machine testing dehydration and vibration：1st, dehydration low-speed stage (rotating speed≤
150rpm), the torque ripple of the fluctuation of speed of detection stable state motor for washer or detection stable state motor for washer.The method needs
Detection time (general >=40S) that will be longer, and vibration at high speed and transient oscillation can not be detected in real time, so as to cause roller
Rotating speed can not be adjusted when the laundry machine dehydration time is long and is dehydrated high speed causes high speed dewatering vibration big；2nd, by using sensor
Module detects dehydration and vibration, but the cost of sensor is higher, and it is poor to install consistency.
Detection method based on above-mentioned dehydration and vibration, it is impossible to the vibration at high speed of dehydration barrel is effectively reduced, so as to cause de-
The water time is longer, and dehydrating effect is poor.
Invention content
One of the technical issues of the present invention is directed to solve at least to a certain extent in above-mentioned technology.For this purpose, the present invention
One purpose is to propose a kind of dehydration controlling method of washing machine, can be convenient and accurately obtains dehydration barrel in dehydration
Vibration Condition, the dehydration control carried out accordingly can effectively reduce the vibration at high speed of dehydration barrel, during so as to shorten dehydration
Between and can improve dehydrating effect.
Second object of the present invention is to propose a kind of dehydration control apparatus of washing machine.
Third object of the present invention is to propose a kind of washing machine.
In order to achieve the above objectives, first aspect present invention embodiment proposes a kind of dehydration controlling method of washing machine, should
Method includes the following steps：When the washing machine performs dehydration procedure, the rotating speed of the dehydration barrel of the washing machine is acquired in real time
With acceleration of the dehydration barrel on direction of vibration；According to dehydration barrel described in the rotating speed and the acceleration calculation described
Vibration displacement amount on direction of vibration；When the rotating speed of the dehydration barrel reaches resonance point rotating speed, the vibration displacement amount is judged
Whether the corresponding preset displacement threshold value of the resonance point rotating speed is more than；If the vibration displacement amount is more than the resonance point rotating speed
Corresponding preset displacement threshold value then controls the washing machine to carry out shaking loose work；If the vibration displacement amount is less than or equal to
The corresponding preset displacement threshold value of the resonance point rotating speed then controls the rotating speed of the dehydration barrel to improve to stablizing gear rotating speed fortune
Row, and judge whether the vibration displacement amount is more than the corresponding preset displacement threshold value of the stable gear rotating speed；If described shake
Dynamic displacement is less than or equal to the corresponding preset displacement threshold value of the stable gear rotating speed, then control the rotating speed of the dehydration barrel after
Continuous improve to next stable gear rotating speed runs.
The dehydration controlling method of washing machine according to embodiments of the present invention, turn of the dehydration barrel by acquiring washing machine in real time
Speed and acceleration of the dehydration barrel on direction of vibration, and the vibration according to rotating speed and acceleration calculation dehydration barrel on direction of vibration
Then displacement determines whether to control washing machine according to vibration displacement amount and shake loose work and after shaking loose according to shaking
Dynamic displacement gradually determine dehydration barrel running speed, thereby, it is possible to it is convenient and accurately obtain dehydration barrel dehydration when
Vibration Condition, the dehydration control carried out accordingly can effectively reduce the vibration at high speed of dehydration barrel, so as to shorten dewatering time
And dehydrating effect can be improved.
In addition, the dehydration controlling method of washing machine proposed according to the above embodiment of the present invention can also have following add
Technical characteristic：
Further, after the washing machine is controlled to carry out shaking loose work, if the rotating speed of the dehydration barrel reaches again
During the resonance point rotating speed, continue to judge whether the vibration displacement amount is more than the corresponding preset displacement threshold of the resonance point rotating speed
Value, if vibration displacement amount preset displacement threshold value corresponding still greater than the resonance point rotating speed, then washed described in secondary control
Clothing machine carries out shaking loose work, and count to shaking loose number, when number is shaken loose described in more than preset times, described in control
Washing machine terminates the dehydration procedure.
Further, when the rotating speed of the dehydration barrel is improved to the stable gear rotating speed, if the vibration displacement
Amount is more than the corresponding preset displacement threshold value of the stable gear rotating speed, then controls the dehydration barrel that current stabilization gear is maintained to turn
Speed operation, and judge that whether corresponding more than the stable gear rotating speed vibration displacement amount is default again every preset time
Displacement threshold value, if vibration displacement amount preset displacement threshold value corresponding still above the stable gear rotating speed, to sentencing
Disconnected number adds up, until the judgement number is more than default when judging number, the dehydration barrel is controlled to maintain currently steady
Determine gear rotating speed and run to the dehydration procedure to terminate.
According to one embodiment of present invention, the direction of vibration includes X, Y and Z-direction in rectangular coordinate system in space.
According to one embodiment of present invention, the washing machine is roller washing machine.
In order to achieve the above objectives, second aspect of the present invention embodiment proposes a kind of dehydration control apparatus of washing machine, should
Device includes：Acquisition module, the acquisition module are used to, when the washing machine performs dehydration procedure, acquire the laundry in real time
The acceleration of the rotating speed of the dehydration barrel of machine and the dehydration barrel on direction of vibration；Computing module, the computing module are used for root
According to vibration displacement amount of the dehydration barrel on the direction of vibration described in the rotating speed and the acceleration calculation；Judgment module, institute
Judgment module is stated for when the rotating speed of the dehydration barrel reaches resonance point rotating speed, judging whether the vibration displacement amount is more than institute
State the corresponding preset displacement threshold value of resonance point rotating speed；Control module, the control module are used to be more than in the vibration displacement amount
During the corresponding preset displacement threshold value of the resonance point rotating speed, the washing machine is controlled to carry out shaking loose work, and in the vibration position
When shifting amount is less than or equal to the resonance point rotating speed corresponding preset displacement threshold value, the rotating speed of the dehydration barrel is controlled to improve to steady
Determine the operation of gear rotating speed；The judgment module be additionally operable to when the rotating speed of the dehydration barrel improve to stablize gear rotating speed operation when,
Judge whether the vibration displacement amount is more than the corresponding preset displacement threshold value of the stable gear rotating speed；The control module is also used
In when the vibration displacement amount is less than or equal to the corresponding preset displacement threshold value of the stable gear rotating speed, the dehydration is controlled
The rotating speed of bucket, which continues to improve to next stable gear rotating speed, to be run.
The dehydration control apparatus of washing machine according to embodiments of the present invention, turn of the dehydration barrel by acquiring washing machine in real time
Speed and acceleration of the dehydration barrel on direction of vibration, and the vibration according to rotating speed and acceleration calculation dehydration barrel on direction of vibration
Then displacement determines whether to control washing machine according to vibration displacement amount and shake loose work and after shaking loose according to shaking
Dynamic displacement gradually determine dehydration barrel running speed, thereby, it is possible to it is convenient and accurately obtain dehydration barrel dehydration when
Vibration Condition, the dehydration control carried out accordingly can effectively reduce the vibration at high speed of dehydration barrel, so as to shorten dewatering time
And dehydrating effect can be improved.
In addition, the dehydration control apparatus of washing machine proposed according to the above embodiment of the present invention can also have following add
Technical characteristic：
Further, after the washing machine is controlled to carry out shaking loose work, when the rotating speed of the dehydration barrel reaches institute again
When stating resonance point rotating speed, the judgment module continues to judge whether the vibration displacement amount is corresponding more than the resonance point rotating speed
Preset displacement threshold value, the control module is in vibration displacement amount preset displacement threshold corresponding still greater than the resonance point rotating speed
During value, then washing machine described in secondary control carries out shaking loose work, and count to shaking loose number, and shaking loose number described in is more than
During preset times, the washing machine is controlled to terminate the dehydration procedure.
Further, when the rotating speed of the dehydration barrel is improved to the stable gear rotating speed, the control module is in institute
When stating vibration displacement amount and being more than the corresponding preset displacement threshold value of the stable gear rotating speed, the dehydration barrel is controlled to remain current
Stablize the operation of gear rotating speed, and the judgment module judges whether the vibration displacement amount is more than institute again every preset time
The corresponding preset displacement threshold value of stable gear rotating speed is stated, the control module is in the vibration displacement amount still above the stabilization
During the corresponding preset displacement threshold value of gear rotating speed, to judging that number adds up, until the judgement number is more than preset times
When, it controls the dehydration barrel that current stabilization gear rotating speed is maintained to run to the dehydration procedure and terminates.
According to one embodiment of present invention, the direction of vibration includes X, Y and Z-direction in rectangular coordinate system in space.
According to one embodiment of present invention, the washing machine is roller washing machine.
In order to achieve the above objectives, third aspect present invention embodiment proposes a kind of washing machine, which includes this hair
The dehydration control apparatus for the washing machine that bright second aspect embodiment proposes.
Washing machine according to embodiments of the present invention, can it is convenient and accurately obtain dehydration barrel dehydration when vibration feelings
Condition, the dehydration control carried out accordingly can effectively reduce the vibration at high speed of dehydration barrel, simultaneously can so as to shorten dewatering time
Improve dehydrating effect.
Description of the drawings
Fig. 1 is the flow chart according to the dehydration controlling method of the washing machine of the embodiment of the present invention；
Fig. 2 is the speed curves figure according to the dehydration barrel of the washing machine of one embodiment of the invention；
Fig. 3 (a) is the flow chart according to the dehydration controlling method of the washing machine in the ST1 stages of one embodiment of the invention；
Fig. 3 (b) is the flow chart according to the dehydration controlling method of the washing machine in the DT2 stages of one embodiment of the invention；
Fig. 3 (c) is the flow chart according to the dehydration controlling method of the washing machine in the DT3 stages of one embodiment of the invention；
Fig. 3 (d) is the flow chart according to the dehydration controlling method of the washing machine in the DT4 stages of one embodiment of the invention；
Fig. 3 (e) is the flow chart according to the dehydration controlling method of the washing machine in the DT5 stages of one embodiment of the invention；
Fig. 4 is the oscillating curve figure under big vibrational state and small vibration state according to one embodiment of the invention；
Fig. 5 is the block diagram according to the dehydration control apparatus of the washing machine of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The dehydration controlling method of the washing machine of the embodiment of the present invention, device and washing machine described below in conjunction with the accompanying drawings.
Fig. 1 is the flow chart according to the dehydration controlling method of the washing machine of the embodiment of the present invention.
As shown in Figure 1, the dehydration controlling method of the washing machine of the embodiment of the present invention, includes the following steps：
S1, when washing machine performs dehydration procedure, the rotating speed and dehydration barrel that acquire the dehydration barrel of washing machine in real time are vibrating
Acceleration on direction.
S2, according to the vibration displacement amount of rotating speed and acceleration calculation dehydration barrel on direction of vibration.
When washing machine performs dehydration procedure, if washing machine is in non-equilibrium state, the dehydration barrel of washing machine can be sent out
Raw vibration.
The vibration of the dehydration barrel of washing machine can be equivalent to the simple harmonic motion of single-degree-of-freedom, and expression formula is：X (t)=Acos
(ω t+ Φ), wherein, amplitude A can represent vibration displacement amount, reflect vibration strong or weak；Angular frequency determines normal in itself for system
Number, it is unrelated with primary condition, react the speed of vibration；Cycle T=2 π/ω is shaken to complete time, reflection used in primary full vibration
Dynamic speed；The π of frequency V=ω/2, the full vibration number completed in the unit interval, reflection vibration speed；Phase (ω t+ Φ) determines
The vibrational state of any time object.
Dehydration barrel acceleration a=d when vibrating2x/dt2=-A ω2Cos (ω t+ Φ)=A ω2cos(ωt+Φ±
π), vibration displacement amount A=a/ [ω can be obtained2cos(ωt+Φ±π)].As it can be seen that it is being vibrated according to the rotating speed of dehydration barrel and dehydration barrel
Acceleration on direction can calculate vibration displacement amount of the dehydration barrel on direction of vibration.
In one embodiment of the invention, direction of vibration may include X, Y and Z-direction in rectangular coordinate system in space.
That is three acceleration are can detect, and three acceleration are vertical two-by-two, can obtain dehydration barrel in above three direction
Vibration displacement amount, so as to more comprehensively reflect the Vibration Condition of dehydration barrel.
S3 when the rotating speed of dehydration barrel reaches resonance point rotating speed, judges whether vibration displacement amount is more than resonance point rotating speed pair
The preset displacement threshold value answered.
The washing machine of the embodiment of the present invention can be roller washing machine.As shown in Fig. 2, the washing machine is starting to perform dehydration journey
After sequence, the rotating speed of dehydration barrel can be continuously improved, when the rotating speed of dehydration barrel reaches resonance point rotating speed, into ST1 shown in Fig. 2
Stage.
S4 if vibration displacement amount is more than the corresponding preset displacement threshold value of resonance point rotating speed, controls washing machine to be trembled
Day labor is made.
In the ST1 stages, if vibration displacement amount is more than the corresponding preset displacement threshold value of resonance point rotating speed, laundry can determine that
The vibration of machine is larger, i.e., washing machine current state is big vibrational state, then can control the rotating speed of dehydration barrel and reduces, to be trembled
Day labor is made.
S5 if vibration displacement amount is less than or equal to the corresponding preset displacement threshold value of resonance point rotating speed, controls dehydration barrel
Rotating speed improve to stablize gear rotating speed operation, and judge vibration displacement amount whether be more than stablize the corresponding default position of gear rotating speed
Move threshold value.
In the ST1 stages, if vibration displacement amount is less than or equal to the corresponding preset displacement threshold value of resonance point rotating speed, can sentence
The vibration for determining washing machine is smaller, i.e., washing machine current state is small vibration state, the rotating speed of dehydration barrel then can control to improve, directly
To the first stabilized (steady-state) speed is increased to, into the DT2 stages shown in Fig. 2.
It should be noted that after control washing machine carries out shaking loose work, if the rotating speed of dehydration barrel reaches resonance again
During point rotating speed, continue to judge whether vibration displacement amount is more than the corresponding preset displacement threshold value of resonance point rotating speed, if vibration displacement
Amount preset displacement threshold value corresponding still greater than resonance point rotating speed, then control washing machine carries out shaking loose work, and secondary to shaking loose again
Number is counted, until when shaking loose number more than preset times, control washing machine terminates dehydration procedure.Specifically, such as Fig. 3 (a)
It is shown, still calculate above-mentioned X, Y and the vibration displacement amount AST1 of Z-direction in real time after shaking loose, and judge the vibration position in each direction
Whether shifting amount AST1 is more than its corresponding preset displacement threshold value A ST1_limit, if AST1 is more than AST1_limit, will tremble
Scattered frequency n adds 1, judges whether n is more than preset times n_max, if n is more than n_max, terminates dehydration procedure；If AST1
Less than or equal to AST1_limit, then continue to improve the rotating speed of dehydration barrel, into the DT2 stages shown in Fig. 2, dehydration barrel is with first
Stabilized (steady-state) speed is run.
In the DT2 stages, judge whether vibration displacement amount is more than the corresponding preset displacement threshold value of the first stabilized (steady-state) speed.
S6 if vibration displacement amount, which is less than or equal to, stablizes the corresponding preset displacement threshold value of gear rotating speed, controls dehydration
The rotating speed of bucket, which continues to improve to next stable gear rotating speed, to be run.
When the rotating speed of dehydration barrel is improved to when stablizing gear rotating speed, if vibration displacement amount, which is more than, stablizes gear rotating speed correspondence
Preset displacement threshold value, then dehydration barrel is controlled to maintain current stabilization gear rotating speed operation, and judge again every preset time
Whether vibration displacement amount, which is more than, is stablized the corresponding preset displacement threshold value of gear rotating speed, if vibration displacement amount is still above stablizing shelves
The corresponding preset displacement threshold value of position rotating speed, then to judging that number adds up, until judge number more than preset judge number when,
The current stabilization gear rotating speed of control dehydration barrel maintenance, which is run to dehydration procedure, to be terminated.
Specifically, as shown in Fig. 2 and Fig. 3 (b), in the DT2 stages, the vibration displacement amount of X, Y and Z-direction is calculated in real time
ADT2, and judge whether the vibration displacement amount ADT2 in each direction calculated for the first time is more than its corresponding preset displacement threshold value
ADT2_limit if ADT2 is more than ADT2_limit, can determine that the vibration of washing machine is larger, i.e. washing machine current state is
Big vibrational state then can control dehydration barrel to maintain current the first stabilized (steady-state) speed operation.Then it is counted again every preset time T
X, Y and the vibration displacement amount ADT2 ' of Z-direction are calculated, and judges whether the vibration displacement amount ADT2 ' in each direction is corresponding more than its
Preset displacement threshold value A DT2_limit, if ADT2 ' more than ADT2_limit, to judging that frequency n s2 adds up.Work as ns2
During less than or equal to default judgement frequency n s2_max, it can continue to return current the first stabilized (steady-state) speed operation of above-mentioned maintenance, every
ADT2 ' is calculated every preset time T and judges whether ADT2 ' is more than the process of ADT2_limit, until ADT2 ' is less than or equal to
ADT2_limit then can determine that the vibration of washing machine is smaller, i.e., washing machine current state is small vibration state, can then continue to carry
The rotating speed of high dehydration barrel, into the DT3 stages shown in Fig. 2, dehydration barrel is run with the second stabilized (steady-state) speed.Wherein, the second stabilization turns
Speed is more than the first stabilized (steady-state) speed.When ns2 be more than it is default judge frequency n s2_max when, directly control dehydration barrel maintain currently the
One stabilized (steady-state) speed, which is run to dehydration procedure, to be terminated.
Fig. 3 (c) is the flow chart of the dehydration controlling method in DT3 stages.Similarly, dehydration controlling method may also include with
The DT4 stages of three stabilized (steady-state) speeds operation, the DT5 stages run with the 4th stabilized (steady-state) speed and the DT6 run with the 5th stabilized (steady-state) speed
Stage.Wherein, third stabilized (steady-state) speed is more than the second stabilized (steady-state) speed, and the 4th stabilized (steady-state) speed is more than third stabilized (steady-state) speed, and the 5th stablizes
Rotating speed is more than the 4th stabilized (steady-state) speed.Wherein, Fig. 3 (d) and Fig. 3 (e) is respectively the dehydration controlling method in DT4 stages and DT5 stages
Flow chart.In DT3 stages, DT4 stages and DT5 stages, specific control process can refer to the control in above-mentioned DT2 stages
Journey.5th stabilized (steady-state) speed in DT6 stages is the maximum speed of set dehydrating vessel in washing machine, when reaching the DT6 stages, dehydration
The rotating speed of bucket is most fast, and dehydrating effect is best.
Fig. 4 is according to the oscillating curve figure under the big vibrational state and small vibration state of one embodiment of the invention, such as Fig. 4
Shown, no matter washing machine, which is in big vibrational state, is in small vibration state, when the rotating speed of dehydration barrel reaches resonance point rotating speed
When, vibration displacement amount is significantly greater, and when the rotating speed of dehydration barrel reaches stable gear rotating speed, vibration displacement amount is smaller and becomes
In steady.
The dehydration controlling method of washing machine according to embodiments of the present invention, turn of the dehydration barrel by acquiring washing machine in real time
Speed and acceleration of the dehydration barrel on direction of vibration, and the vibration according to rotating speed and acceleration calculation dehydration barrel on direction of vibration
Then displacement determines whether to control washing machine according to vibration displacement amount and shake loose work and after shaking loose according to shaking
Dynamic displacement gradually determine dehydration barrel running speed, thereby, it is possible to it is convenient and accurately obtain dehydration barrel dehydration when
Vibration Condition, the dehydration control carried out accordingly can effectively reduce the vibration at high speed of dehydration barrel, so as to shorten dewatering time
And dehydrating effect can be improved.
Dehydration controlling method for the washing machine for realizing above-described embodiment, the present invention also propose a kind of dehydration control of washing machine
Device processed.
As shown in figure 5, the dehydration control apparatus of the washing machine of the embodiment of the present invention, including：Acquisition module 10, computing module
20th, judgment module 30 and control module 40.
Wherein, acquisition module 10 is used to, when washing machine performs dehydration procedure, acquire turning for the dehydration barrel of washing machine in real time
Speed and acceleration of the dehydration barrel on direction of vibration；Computing module 20 is used to vibrated according to rotating speed and acceleration calculation dehydration barrel
Vibration displacement amount on direction；Judgment module 30 is used for when the rotating speed of dehydration barrel reaches resonance point rotating speed, judges vibration displacement
Whether amount is more than the corresponding preset displacement threshold value of resonance point rotating speed；Control module 40 is used to more than resonance point turn in vibration displacement amount
During fast corresponding preset displacement threshold value, control washing machine carries out shaking loose work, and be less than or equal to resonance point in vibration displacement amount
During the corresponding preset displacement threshold value of rotating speed, the rotating speed of dehydration barrel is controlled to improve to stablizing the operation of gear rotating speed；Judgment module 30 is also
For when the rotating speed of dehydration barrel improve to stablize gear rotating speed operation when, judge vibration displacement amount whether be more than stablize gear rotating speed
Corresponding preset displacement threshold value；Control module 40 is additionally operable to corresponding pre- less than or equal to gear rotating speed is stablized in vibration displacement amount
If during displacement threshold value, the rotating speed of dehydration barrel is controlled to continue to improve to next stable gear rotating speed operation.
When washing machine performs dehydration procedure, if washing machine is in non-equilibrium state, the dehydration barrel of washing machine can be sent out
Raw vibration.
The vibration of the dehydration barrel of washing machine can be equivalent to the simple harmonic motion of single-degree-of-freedom, and expression formula is：X (t)=Acos
(ω t+ Φ), wherein, amplitude A can represent vibration displacement amount, reflect vibration strong or weak；Angular frequency determines normal in itself for system
Number, it is unrelated with primary condition, react the speed of vibration；Cycle T=2 π/ω is shaken to complete time, reflection used in primary full vibration
Dynamic speed；The π of frequency V=ω/2, the full vibration number completed in the unit interval, reflection vibration speed；Phase (ω t+ Φ) determines
The vibrational state of any time object.
Dehydration barrel acceleration a=d when vibrating2x/dt2=-A ω2Cos (ω t+ Φ)=A ω2cos(ωt+Φ±
π), vibration displacement amount A=a/ [ω can be obtained2cos(ωt+Φ±π)].As it can be seen that it is being vibrated according to the rotating speed of dehydration barrel and dehydration barrel
Acceleration on direction can calculate vibration displacement amount of the dehydration barrel on direction of vibration.
In one embodiment of the invention, direction of vibration may include X, Y and Z-direction in rectangular coordinate system in space.
That is acquisition module 10 can detect three acceleration, and three acceleration are vertical two-by-two, can obtain dehydration barrel above-mentioned
The vibration displacement amount in three directions, so as to more comprehensively reflect the Vibration Condition of dehydration barrel.
The washing machine of the embodiment of the present invention can be roller washing machine.As shown in Fig. 2, the washing machine is starting to perform dehydration journey
After sequence, the rotating speed of dehydration barrel can be continuously improved, when the rotating speed of dehydration barrel reaches resonance point rotating speed, into ST1 shown in Fig. 2
Stage.
In the ST1 stages, if vibration displacement amount is more than the corresponding preset displacement threshold value of resonance point rotating speed, laundry can determine that
The vibration of machine is larger, i.e., washing machine current state is big vibrational state, then can control the rotating speed of dehydration barrel and reduces, to be trembled
Day labor is made.
In the ST1 stages, if vibration displacement amount is less than or equal to the corresponding preset displacement threshold value of resonance point rotating speed, can sentence
The vibration for determining washing machine is smaller, i.e., washing machine current state is small vibration state, the rotating speed of dehydration barrel then can control to improve, directly
To the first stabilized (steady-state) speed is increased to, into the DT2 stages shown in Fig. 2.
It should be noted that after control washing machine carries out shaking loose work, if the rotating speed of dehydration barrel reaches resonance again
During point rotating speed, judgment module 30 can continue to judge whether vibration displacement amount is more than the corresponding preset displacement threshold value of resonance point rotating speed,
If vibration displacement amount preset displacement threshold value corresponding still greater than resonance point rotating speed, control module 40 control again washing machine into
Row shakes loose work, and count to shaking loose number, until when shaking loose number more than preset times, control washing machine terminates to be dehydrated
Program.
In the DT2 stages, judgment module 30 judges whether vibration displacement amount is more than the corresponding preset displacement of the first stabilized (steady-state) speed
Threshold value.
When the rotating speed of dehydration barrel is improved to when stablizing gear rotating speed, if vibration displacement amount, which is more than, stablizes gear rotating speed correspondence
Preset displacement threshold value, then control module 40 dehydration barrel is controlled to maintain current stabilization gear rotating speed operation, judgment module 30 is every
Judge whether vibration displacement amount is more than again every preset time and stablize the corresponding preset displacement threshold value of gear rotating speed, control module 40
When vibration displacement amount is still above the corresponding preset displacement threshold value of gear rotating speed is stablized, to judging that number adds up, until
It is default when judging number to judge that number is more than, the current stabilization gear rotating speed of control dehydration barrel maintenance is run to dehydration procedure knot
Beam.
The dehydration control apparatus of washing machine according to embodiments of the present invention, turn of the dehydration barrel by acquiring washing machine in real time
Speed and acceleration of the dehydration barrel on direction of vibration, and the vibration according to rotating speed and acceleration calculation dehydration barrel on direction of vibration
Then displacement determines whether to control washing machine according to vibration displacement amount and shake loose work and after shaking loose according to shaking
Dynamic displacement gradually determine dehydration barrel running speed, thereby, it is possible to it is convenient and accurately obtain dehydration barrel dehydration when
Vibration Condition, the dehydration control carried out accordingly can effectively reduce the vibration at high speed of dehydration barrel, so as to shorten dewatering time
And dehydrating effect can be improved.
Corresponding above-described embodiment, the present invention also propose a kind of washing machine.
The washing machine of the embodiment of the present invention, the dehydration control apparatus including the washing machine that the above embodiment of the present invention proposes,
Its specific embodiment can refer to above-described embodiment, and to avoid redundancy, details are not described herein.
Washing machine according to embodiments of the present invention, can it is convenient and accurately obtain dehydration barrel dehydration when vibration feelings
Condition, the dehydration control carried out accordingly can effectively reduce the vibration at high speed of dehydration barrel, simultaneously can so as to shorten dewatering time
Improve dehydrating effect.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature right over second feature or oblique upper or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the different embodiments or examples described in this specification and the feature of different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (11)
1. a kind of dehydration controlling method of washing machine, which is characterized in that include the following steps：
When the washing machine performs dehydration procedure, the rotating speed and the dehydration barrel that acquire the dehydration barrel of the washing machine in real time exist
Acceleration on direction of vibration；
According to vibration displacement amount of the dehydration barrel on the direction of vibration described in the rotating speed and the acceleration calculation；
When the rotating speed of the dehydration barrel reaches resonance point rotating speed, judge whether the vibration displacement amount is more than the resonance point and turns
The corresponding preset displacement threshold value of speed；
If the vibration displacement amount be more than the corresponding preset displacement threshold value of the resonance point rotating speed, control the washing machine into
Row shakes loose work；
If the vibration displacement amount is less than or equal to the corresponding preset displacement threshold value of the resonance point rotating speed, control described de-
The rotating speed of bucket improve to stablize gear rotating speed operation, and judge the vibration displacement amount whether be more than the stable gear rotating speed
Corresponding preset displacement threshold value；
If the vibration displacement amount is less than or equal to the corresponding preset displacement threshold value of the stable gear rotating speed, described in control
The rotating speed of dehydration barrel, which continues to improve to next stable gear rotating speed, to be run.
2. the dehydration controlling method of washing machine according to claim 1, which is characterized in that carried out controlling the washing machine
After shaking loose work, if the rotating speed of the dehydration barrel reaches the resonance point rotating speed again, continue to judge the vibration displacement
Whether amount is more than the corresponding preset displacement threshold value of the resonance point rotating speed, if the vibration displacement amount is still greater than the resonance point
The corresponding preset displacement threshold value of rotating speed, then washing machine described in secondary control carries out shaking loose work, and count to shaking loose number again,
When shaking loose number described in until more than preset times, the washing machine is controlled to terminate the dehydration procedure.
3. the dehydration controlling method of washing machine according to claim 1, which is characterized in that when the rotating speed of the dehydration barrel carries
Up to the stable gear rotating speed when, if the vibration displacement amount is more than the corresponding preset displacement threshold of the stable gear rotating speed
Value then controls the dehydration barrel to maintain current stabilization gear rotating speed operation, and judges the vibration again every preset time
Whether displacement is more than the corresponding preset displacement threshold value of the stable gear rotating speed, if the vibration displacement amount is still above institute
The corresponding preset displacement threshold value of stable gear rotating speed is stated, then to judging that number adds up, until the judgement number is more than in advance
If judge number, control the dehydration barrel that current stabilization gear rotating speed is maintained to run to the dehydration procedure and terminate.
4. the dehydration controlling method of washing machine according to claim 1, which is characterized in that the direction of vibration includes space
X, Y and Z-direction in rectangular coordinate system.
5. the dehydration controlling method of the washing machine according to any one of claim 1-4, which is characterized in that the washing machine
For roller washing machine.
6. a kind of dehydration control apparatus of washing machine, which is characterized in that including：
Acquisition module, the acquisition module are used to, when the washing machine performs dehydration procedure, acquire the washing machine in real time
The acceleration of the rotating speed of dehydration barrel and the dehydration barrel on direction of vibration；
Computing module, the computing module be used for according to the rotating speed and the acceleration calculation dehydration barrel in the vibration
Vibration displacement amount on direction；
Judgment module, the judgment module are used for when the rotating speed of the dehydration barrel reaches resonance point rotating speed, judge the vibration
Whether displacement is more than the corresponding preset displacement threshold value of the resonance point rotating speed；
Control module, the control module are used to be more than the corresponding preset displacement of the resonance point rotating speed in the vibration displacement amount
During threshold value, the washing machine is controlled to carry out shaking loose work, and be less than or equal to the resonance point rotating speed in the vibration displacement amount
During corresponding preset displacement threshold value, control the dehydration barrel rotating speed improve to stablize gear rotating speed operation；
The judgment module is additionally operable to improve to when stablizing the operation of gear rotating speed when the rotating speed of the dehydration barrel, judges the vibration
Whether displacement is more than the corresponding preset displacement threshold value of the stable gear rotating speed；
The control module is additionally operable to be less than or equal to the corresponding default position of the stable gear rotating speed in the vibration displacement amount
When moving threshold value, the rotating speed of the dehydration barrel is controlled to continue to improve to next stable gear rotating speed operation.
7. the dehydration control apparatus of washing machine according to claim 6, which is characterized in that carried out controlling the washing machine
After shaking loose work, when the rotating speed of the dehydration barrel reaches the resonance point rotating speed again, the judgment module continues to judge institute
State whether vibration displacement amount is more than the corresponding preset displacement threshold value of the resonance point rotating speed, the control module is in the vibration position
During corresponding still greater than the resonance point rotating speed preset displacement threshold value of shifting amount, then washing machine described in secondary control carries out shaking loose work,
And counted to shaking loose number, when shaking loose number described in more than preset times, the washing machine is controlled to terminate described de-
Water program.
8. the dehydration control apparatus of washing machine according to claim 6, which is characterized in that when the rotating speed of the dehydration barrel carries
Up to the stable gear rotating speed when, the control module the vibration displacement amount be more than the stable gear rotating speed it is corresponding
During preset displacement threshold value, the dehydration barrel is controlled to maintain current stabilization gear rotating speed operation, and the judgment module every
Preset time judges whether the vibration displacement amount is more than the corresponding preset displacement threshold value of the stable gear rotating speed again, described
Control module is in vibration displacement amount preset displacement threshold value corresponding still above the stable gear rotating speed, to judging time
Number adds up, until when the judgement number is more than preset times, controls the dehydration barrel that current stabilization gear is maintained to turn
Speed operation to the dehydration procedure terminates.
9. the dehydration control apparatus of washing machine according to claim 6, which is characterized in that the direction of vibration includes space
X, Y and Z-direction in rectangular coordinate system.
10. the dehydration control apparatus of the washing machine according to any one of claim 6-9, which is characterized in that the laundry
Machine is roller washing machine.
A kind of 11. washing machine, which is characterized in that the dehydration control including the washing machine according to any one of claim 6-10
Device processed.
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107201626B (en) * | 2017-05-31 | 2020-08-04 | 广东威灵电机制造有限公司 | Drum washing machine and dehydration control method and device thereof and machine readable storage medium |
| CN107099972A (en) * | 2017-05-31 | 2017-08-29 | 广东威灵电机制造有限公司 | Unbalance detection, rotary drum washing machine and the storage medium of rotary drum washing machine |
| CN107059335A (en) * | 2017-05-31 | 2017-08-18 | 广东威灵电机制造有限公司 | Unbalance detection, washing machine and the storage medium of washing machine drum body |
| CN107245839B (en) * | 2017-05-31 | 2019-07-12 | 广东威灵电机制造有限公司 | Control method for drum washing machine, device, machine readable storage medium and roller washing machine |
| CN107401022B (en) * | 2017-09-06 | 2019-06-14 | 海信（山东）冰箱有限公司 | A kind of control method of washing machine, control device and washing machine |
| CN107904857B (en) * | 2017-11-03 | 2023-08-01 | 青岛海尔洗衣机有限公司 | Method for controlling dehydration of laundry treatment apparatus and laundry treatment apparatus |
| CN110878460B (en) * | 2018-08-31 | 2022-12-06 | 青岛海尔洗衣机有限公司 | Dewatering control method of washing machine and washing machine |
| CN110938968A (en) * | 2018-09-20 | 2020-03-31 | 无锡小天鹅电器有限公司 | Dehydration control method and device, computer readable storage medium and washing machine |
| CN110273260B (en) * | 2019-07-02 | 2021-08-20 | 上海景能电气有限公司 | Non-sensing drum washing machine eccentricity and weighing-based acquisition method |
| CN110592885A (en) * | 2019-08-19 | 2019-12-20 | 珠海格力电器股份有限公司 | Eccentricity detection device and method for drum washing machine 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 |
| CN113162482A (en) * | 2021-04-02 | 2021-07-23 | 广东惠利普智能科技股份有限公司 | Method capable of automatically avoiding resonant frequency of variable frequency electric appliance |
| CN113265836B (en) * | 2021-05-28 | 2023-04-18 | 海信冰箱有限公司 | Washing machine and dewatering control method thereof |
| CN113832649A (en) * | 2021-09-30 | 2021-12-24 | 无锡飞翎电子有限公司 | Dehydration control method, device, clothes processing equipment and storage medium |
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Effective date of registration: 20190808 Address after: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Patentee after: Wuxi Swan Electrical Appliances Co., Ltd. Address before: 214028 Wuxi Changjiang Road, Wuxi New District, Jiangsu, No. 18 Patentee before: Wuxi Xiaotianer Co., Ltd. |