CN105088661B - The eccentric detection method of roller washing machine - Google Patents
The eccentric detection method of roller washing machine Download PDFInfo
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- CN105088661B CN105088661B CN201510375762.4A CN201510375762A CN105088661B CN 105088661 B CN105088661 B CN 105088661B CN 201510375762 A CN201510375762 A CN 201510375762A CN 105088661 B CN105088661 B CN 105088661B
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- D06F37/203—
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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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- D06F2202/065—
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- D06F2202/12—
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- D06F2204/10—
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Abstract
The invention discloses a kind of eccentric detection method of roller washing machine, wherein, roller washing machine includes series excited machine, and the eccentric detection method comprises the following steps：After detecting that dehydration procedure starts, control series excited machine starts；Series excited machine raising speed is controlled to the first preset rotation speed, and the first preset time is maintained in the first preset rotation speed, and calculates the undulating value of the rotating speed of series excited machine in the first preset time；Series excited machine nature reduction of speed detects series excited machine and is less than the first preset rotation speed from the deceleration time of the first preset rotation speed reduction of speed to the second preset rotation speed, the second preset rotation speed to the second preset rotation speed；And eccentricity value is obtained according to undulating value and deceleration time.The eccentric detection method of the roller washing machine of the present invention, can carry out more accurate eccentricity detecting, improve the stationarity of roller washing machine.
Description
Technical field
The invention belongs to electrical equipment manufacturing technology field, more particularly to a kind of eccentric detection method of roller washing machine.
Background technology
If roller washing machine has eccentric presence in high speed dewatering in dehydration barrel, eccentric to enter when dehydration barrel rotates at a high speed
Row centrifugal motion can make washing machine internal suspension produce vibration, and vibration can pass through the damping of the suspension of roller washing machine
Device is delivered on casing, and vibration will be accordingly excessive when eccentric excessive, uncomfortable sensation can be produced to user, therefore be dehydrated
During detect eccentric and be controlled by being the problem of each producer pays special attention to.
The series excited machine of roller washing machine is presently used for due to the limitation of motor driving principle itself, it is difficult to realize accurate
True electrical signal detection and processing, therefore, it is difficult to detect offset exactly.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention needs
A kind of eccentric detection method of roller washing machine is proposed, the eccentric detection method is directed to the roller washing machine using series excited machine
More accurate eccentricity detecting can be carried out, improves the stationarity of roller washing machine.
To solve the above problems, the present invention proposes a kind of eccentric detection method of roller washing machine, wherein, roller washing machine
Including series excited machine, the eccentric detection method comprises the following steps：After detecting that dehydration procedure starts, the series excitation is controlled
Electric motor starting；The series excited machine raising speed is controlled to the first preset rotation speed, and maintains first to preset in first preset rotation speed
Time, and calculate the undulating value of the rotating speed of the series excited machine in first preset time；The series excited machine is natural
Reduction of speed detects the series excited machine from the first preset rotation speed reduction of speed to second preset rotation speed to the second preset rotation speed
Deceleration time, second preset rotation speed is less than first preset rotation speed；And according to the undulating value and the reduction of speed
Time obtains eccentricity value.
The eccentric detection method of roller washing machine according to embodiments of the present invention, it is default first by detecting series excited machine
The undulating value and the deceleration time from the first preset rotation speed nature reduction of speed to the second preset rotation speed of rotating speed under rotating speed operation, and then
Eccentricity value is obtained according to the undulating value of rotating speed and deceleration time, realizes and the eccentric of the roller washing machine using series excited machine is examined
Survey, can not realize that offset detects exactly with processing relative to traditional series excited machine electrical signal detection, detection of the invention
The testing result of method is more nearly actual eccentricity value, more accurately, and then is carried for the stationarity of hoisting drum laundry machine dehydration
For data basis.
In some embodiments of the invention, the rotating speed of calculating series excited machine in first preset time
Undulating value specifically include：Detect the maximum (top) speed and minimum speed of the series excited machine in first preset time；With
And the difference of the maximum (top) speed and the minimum speed is calculated to be used as the undulating value.
In some embodiments of the invention, it is described specific according to the undulating value and deceleration time acquisition eccentricity value
Including：Mathematical Fitting processing is carried out to the deceleration time and the undulating value to obtain the eccentricity value.
Specifically, first preset rotation speed is 92-94 revs/min, and second preset rotation speed is 59-61 revs/min.
Further, above-mentioned detection method also includes：Judge whether the roller washing machine continues according to the eccentricity value
Run the dehydration procedure.
In some embodiments of the invention, it is described to judge whether the roller washing machine continues to transport according to the eccentricity value
The row dehydration procedure specifically includes：If the eccentricity value is more than presupposed off-center threshold value, the roller washing machine is controlled to stop
The only dehydration procedure, and being prompted, so as to improve dehydration stationarity, avoid it is eccentric it is excessive cause to vibrate it is bad.
Brief description of the drawings
Fig. 1 is the flow chart of the eccentric detection method of roller washing machine according to an embodiment of the invention；
Fig. 2 is the fluctuation schematic diagram according to the series excited machine rotating speed of the specific embodiment of the present invention；
The fluctuation of speed value of series excited machine when Fig. 3 is the corresponding different loads according to another specific embodiment of the present invention
Corresponding form and to should list data curve synoptic diagram；
Fig. 4 is special edition motor when eccentricity detecting is carried out in the dehydration according to another specific embodiment of the present invention
Operation curve schematic diagram；
Fig. 5 is the deceleration time form being respectively supported under different eccentricity values according to the specific embodiment of the present invention；
Fig. 6 is radius change schematic diagram when being rotated according to the different loads of another specific embodiment of the present invention；
The fluctuation of speed value of series excited machine when Fig. 7 is the corresponding different loads according to another specific embodiment of the present invention
With deceleration time be fitted after eccentricity value corresponding to form and to should list data curve synoptic diagram；And
Fig. 8 is the flow chart according to the eccentric detection method of the roller washing machine of another specific embodiment of the present invention.
Embodiment
Embodiments of the invention are 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 eccentric detection method of roller washing machine according to embodiments of the present invention is described with reference to the accompanying drawings.
Fig. 1 be according to the flow chart of the eccentric detection method of the roller washing machine of one embodiment of the present of invention, wherein, rolling
Cylinder washing machine includes series excited machine, that is to say, that the eccentric detection method of the embodiment of the present invention is directed to the rolling using series excited machine
Cylinder washing machine, as shown in figure 1, the eccentric detection method comprises the following steps：
S1, after detecting that dehydration procedure starts, control series excited machine starts.
S2, control series excited machine raising speed maintain the first preset time to the first preset rotation speed, and in the first preset rotation speed, with
And calculate the undulating value of the rotating speed of series excited machine in the first preset time.
In one embodiment of the invention, the first preset rotation speed is 92-94 revs/min, for example, when being dehydrated,
Control series excited machine accelerates to 93 revs/min from 0 turn, and such as 5 seconds a seconds are maintained under 93 revs/min of rotating speed, in fact,
When rotating speed maintains the first preset rotation speed, if bias in barrel washing machine dehydration bucket be present, the actual speed of series excited machine is
In the presence of fluctuation.
Calculate the rotating speed fluctuation of the rotating speed of series excited machine in section of holding time and be for example set to △ N.Specifically, as shown in Fig. 2
It is that rotating speed is held time the maximum (top) speed Nmax and minimum speed Nmin of series excited machine in section to detect in the first preset time, and
Maximum (top) speed Nmax and minimum speed Nmin difference is calculated to be used as undulating value △ N, i.e. △ N=Nmax-Nmin.
(1) and (2) in Fig. 3 is according to the bias of the specific embodiment of the present invention, load capacity and the fluctuation of speed
Statistical form and corresponding curve synoptic diagram.As shown in (1) and (2) in Fig. 3, the more radiuss of turn of load are smaller, caused power
Square will be smaller, and the fluctuation of speed is also just smaller, turns for example, for when bias is 400, the fluctuation of speed is 63 during empty barrel, during semi-load
Speed fluctuation is 34, and the full load fluctuation of speed is 26.
S3, series excited machine nature reduction of speed to the second preset rotation speed, and detect series excited machine from the first preset rotation speed reduction of speed to
The deceleration time of second preset rotation speed.
Wherein, the second preset rotation speed is less than the first preset rotation speed, in one embodiment of the invention, the second preset rotation speed
For 59-61 revs/min, for example, series excited machine maintained 5 seconds from 93 revs/min of rotating speed after natural reduction of speed to n ' revs/min for example
60 revs/min, and detect the time consumed in down speeding procedure and be for example set to t.As can be seen that during eccentricity detecting is dehydrated
The operation curve of series excited machine is as shown in Figure 4.
Fig. 5 is the deceleration time relation under different bias according to each load capacity of the specific embodiment of the present invention
Table, wherein, empty barrel, semi-load, fully loaded deceleration time is denoted as t 1, t2, t3 (the ＜ t2 ＜ t3 of t 1) respectively.As can be seen that load
Amount is bigger, it is necessary to deceleration time is longer, eccentricity value it is bigger, it is necessary to deceleration time it is longer.
S4, eccentricity value is obtained according to undulating value and deceleration time.
It is understood that the fluctuation of speed and deceleration time have relation with eccentricity value.In one embodiment of the present of invention
In, Mathematical Fitting processing is carried out to deceleration time and undulating value to obtain eccentricity value.Specifically, due to roller washing machine undergarment
The change of amount, the radius of turn of an equal amount of eccentric dehydration barrel under different laundry amounts is different, (1) (2) and (3) in Fig. 6
For eccentric rotary radius schematic diagram under empty barrel, semi-load and full load condition, as shown in fig. 6, the more radiuss of turn of load are smaller, example
Such as, it is assumed that eccentric m radius of turn is r1 under empty barrel operation, and the radius of eccentric m rotations is r2 under the operation of semi-load laundry amounts, is fully loaded with
Eccentric m radiuss of turn are r3 under laundry amounts operation, then meet r3<r2<r1.
Besides, it is natural after series excited machine maintains the first preset time under the first preset rotation speed such as 93 revs/min
Reduction of speed to such as 60 revs/min of the second preset rotation speed, now barrel washing machine dehydration bucket needs to overcome frictional force to do negative work, roller
Clothing amount in washing machine is more, and the deceleration time t of series excited machine from the first preset rotation speed reduction of speed to the second preset rotation speed is longer, because
This deceleration time t can use directly as load capacity parameter.It is sides of the deceleration time t by Mathematical Fitting by load capacity parameter
Method corrects the fluctuation of speed multiplied by with corresponding coefficient, and the eccentricity value for making to export under different loads amount is close to actual bias
Value.Wherein, specific fit procedure can be fitted by application software such as Minitab, and one in the present invention is specific real
Apply in example, if the eccentricity value finally given is Z, if Z=a* △ N+b*t+c* △ N8*t+d, a, b, c and d are fitting coefficient, root
Obtained according to experimental data：Z=111-6.05 △ N-3.62t+0.292 △ N*t, and then be fitted using Minitab softwares, return and divide
Analysis：△ N and △ N, t, △ N*t, regression equation is above formula, in a word, is according to the fluctuation of speed of above-mentioned detection and deceleration time
It can be fitted and obtain final eccentricity value Z.
It is in empty barrel, semi-load and fully loaded shape according to a specific embodiment of the invention as shown in (1) in Fig. 7 and (2)
The form and corresponding curve for the eccentricity value that each eccentric fluctuation of speed of state exports after carrying out Mathematical Fitting with deceleration time are illustrated
Figure, it can be seen that the eccentricity value exported after data process of fitting treatment has been sufficiently close to actual eccentricity.
As can be seen that the detection method of the embodiment of the present invention is by gathering other signals related to series excited machine and passing through
Mathematical treatment, so as to realize the eccentricity detecting of the roller washing machine using series excited machine.
The eccentric detection method of roller washing machine according to embodiments of the present invention, it is default first by detecting series excited machine
The undulating value and the deceleration time from the first preset rotation speed nature reduction of speed to the second preset rotation speed of rotating speed under rotating speed operation, and then
Eccentricity value is obtained according to the undulating value of rotating speed and deceleration time, realizes and the eccentric of the roller washing machine using series excited machine is examined
Survey, can not realize that offset detects exactly with processing relative to traditional series excited machine electrical signal detection, detection of the invention
The testing result of method is more nearly actual eccentricity value, more accurately, and then is carried for the stationarity of hoisting drum laundry machine dehydration
For data basis.
Further, judge whether roller washing machine continues to run with dehydration procedure according to eccentricity value, that is, judge laundry drum
The no carry out high speed dewatering of function.Specifically, if eccentricity value is more than presupposed off-center threshold value, the dehydration barrel of roller washing machine is illustrated
It is eccentric excessive, easily cause and shake bad, then control roller washing machine stopping dehydration procedure, and being prompted, so as to carry
Stationarity during height dehydration.
Based on described above, put it briefly, as shown in figure 8, the eccentric detection method of the embodiment of the present invention includes：
S10, series excited machine rotating speed accelerate to the first preset rotation speed from 0.
S20, maintain a seconds.
S30, calculate fluctuation of speed △ N.
S40, series excited machine nature reduction of speed to the second preset rotation speed.
S50, calculate deceleration time.
S60, the fluctuation of speed and deceleration time are subjected to Mathematical Fitting and obtain eccentricity value.
S70, judge whether to continue to be dehydrated according to eccentricity value.
If it is, into step S80, otherwise return to step S10.
S80, subsequently it is dehydrated.
The eccentric detection method of the embodiment of the present invention, without increasing extra cost, and in the market high speed dewatering can be reduced and shaken
Related complaint is moved, the lifting to product competitiveness in the market is very helpful.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
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 or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have 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, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (6)
1. a kind of eccentric detection method of roller washing machine, it is characterised in that the roller washing machine includes series excited machine, described
Eccentric detection method comprises the following steps：
After detecting that dehydration procedure starts, the series excited machine is controlled to start；
The series excited machine raising speed is controlled to the first preset rotation speed, and the first preset time is maintained in first preset rotation speed,
And calculate the undulating value of the rotating speed of the series excited machine in first preset time；
The series excited machine nature reduction of speed detects the series excited machine and dropped from first preset rotation speed to the second preset rotation speed
The fast deceleration time to second preset rotation speed, second preset rotation speed are less than first preset rotation speed, the reduction of speed
Time is as load capacity parameter；And
Eccentricity value is obtained according to the undulating value and the deceleration time.
2. the eccentric detection method of roller washing machine as claimed in claim 1, it is characterised in that the calculating is described first
The undulating value of the rotating speed of the series excited machine specifically includes in preset time：
Detect the maximum (top) speed and minimum speed of the series excited machine in first preset time；And
The difference of the maximum (top) speed and the minimum speed is calculated to be used as the undulating value.
3. the eccentric detection method of roller washing machine as claimed in claim 1, it is characterised in that described according to the undulating value
Eccentricity value is obtained with the deceleration time to specifically include：
Mathematical Fitting processing is carried out to the deceleration time and the undulating value to obtain the eccentricity value.
4. the eccentric detection method of roller washing machine as claimed in claim 1, it is characterised in that first preset rotation speed is
92-94 revs/min, second preset rotation speed is 59-61 revs/min.
5. the eccentric detection method of roller washing machine as claimed in claim 1, it is characterised in that also include：
Judge whether the roller washing machine continues to run with the dehydration procedure according to the eccentricity value.
6. the eccentric detection method of roller washing machine as claimed in claim 5, it is characterised in that described according to the eccentricity value
Judge whether the roller washing machine continues to run with the dehydration procedure and specifically include：
If the eccentricity value is more than presupposed off-center threshold value, controls the roller washing machine to stop the dehydration procedure, go forward side by side
Row prompting.
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| CN201510375762.4A CN105088661B (en) | 2015-06-30 | 2015-06-30 | The eccentric detection method of roller washing machine |
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| CN201510375762.4A CN105088661B (en) | 2015-06-30 | 2015-06-30 | The eccentric detection method of roller washing machine |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106811917B (en) * | 2015-11-27 | 2019-01-11 | 无锡小天鹅通用电器有限公司 | The dewatering of roller washing machine |
| CN105780392A (en) * | 2016-04-29 | 2016-07-20 | 无锡小天鹅股份有限公司 | Detection method of load status of washing machine and dewatering method |
| KR20190125658A (en) * | 2018-04-30 | 2019-11-07 | 주식회사 위니아대우 | Washing machine and unbalance detection method thereof |
| CN110872762B (en) * | 2018-08-31 | 2022-02-25 | 无锡飞翎电子有限公司 | Eccentricity detection method for drum washing machine |
| CN110872761B (en) * | 2018-08-31 | 2022-02-25 | 无锡飞翎电子有限公司 | Eccentricity detection method for drum washing machine |
| CN112095286B (en) * | 2019-05-30 | 2023-05-02 | 无锡飞翎电子有限公司 | Laundry treating apparatus, operation control method, system thereof, and storage medium |
| CN110409118B (en) * | 2019-07-19 | 2021-08-17 | 深圳和而泰智能控制股份有限公司 | Drum control method and related device |
| CN110578229A (en) * | 2019-09-23 | 2019-12-17 | 卧龙电气驱动集团股份有限公司 | method for rapidly detecting eccentricity of washing machine |
| CN113005714B (en) * | 2021-02-24 | 2022-12-09 | 海信冰箱有限公司 | Dehydration control method and medium for drum washing machine and drum washing machine |
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Effective date of registration: 20190726 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. |