CN109487498A - A kind of motor control method of washing facility, device and a kind of washing facility - Google Patents
A kind of motor control method of washing facility, device and a kind of washing facility Download PDFInfo
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- CN109487498A CN109487498A CN201811367710.2A CN201811367710A CN109487498A CN 109487498 A CN109487498 A CN 109487498A CN 201811367710 A CN201811367710 A CN 201811367710A CN 109487498 A CN109487498 A CN 109487498A
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- Prior art keywords
- motor
- speed
- washing facility
- threshold value
- quality
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Classifications
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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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- D06F37/203—
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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)
Abstract
Motor control method, device and a kind of washing facility for a kind of washing facility that the embodiment of the present invention proposes, when the motor of washing facility starts reduction of speed, the revolving speed uniform descent of motor is first controlled to threshold value, so that motor speed is quickly reduced to zero by way of braking motor.Pass through above-mentioned technological means, since revolving speed drops to after threshold value the decrease speed for passing through braking and accelerating revolving speed, it avoids and hits a barrel shifting phenomena caused by the resonance zone of suspension since washing facility roller passes through for a long time, and the time of reduction of speed consumption is short, and the braking motor again after revolving speed is reduced to Near resonance oscillating speed, the noise of generation is small, improves the experience of user.
Description
Technical field
The present embodiments relate to motor control technology fields, and in particular to a kind of motor control method of washing facility,
Device and a kind of washing facility.
Background technique
Present washing facility includes: 1. by the way of when carrying out dehydration reduction of speed, generally by the reduction of certain deceleration
The revolving speed of washing facility motor, very slow using such mode reduction of speed, time-consuming, and if dehydration clothing moisture content difference it is big,
And percentage of water loss difference is big, it will causes in down speeding procedure, after clothes dewatering, due to the difference of clothing moisture content, leads to bias
Become very big, washing facility roller is made to pass through the resonance zone of washing facility suspension for a long time, causes to hit bucket displacement
The phenomenon that；2. reduction of speed, this reduction of speed mode are carried out by way of controlling motor and bringing to a halt, although reduction of speed can pass through roller quickly
The resonance zone of washing facility suspension, but since brake can generate prolonged noise, influence people's lives quality.
Summary of the invention
It is slow in order to solve above-mentioned washing facility motor brake.The big technical problem of noise, the embodiment of the invention provides one
Motor control method, device and a kind of washing facility of kind washing facility.
In view of this, in a first aspect, the embodiment of the present invention provides a kind of motor control method of washing facility, comprising:
When the motor of washing facility starts reduction of speed, the current rotating speed of the motor is obtained；
The revolving speed for controlling the motor is at the uniform velocity reduced by predetermined acceleration；
Judge whether the current rotating speed of the motor is higher than threshold value, turns when the threshold value starts reduction of speed lower than the motor
Speed, and it is greater than zero speed；
If the current rotating speed is not higher than the threshold value, the motor is braked.
Optionally, the threshold value is the tachometer value of the resonance speed greater than the motor.
Optionally, judge the current rotating speed of the motor whether before high threshold, further includes:
Detect the quality of washing facility undergarment；
Obtain the rigidity of washing facility suspension；
Obtain motor compensating tachometer value corresponding with the quality；
According to the resonance speed of motor described in the quality, Rigidity Calculation；
According to the resonance speed and motor compensating tachometer value, the threshold value is calculated.
Optionally, according to the resonance speed and motor compensating tachometer value, threshold value is calculated as follows:
In formula, nCloselyIndicate threshold value,Indicate that the resonance speed of motor, k indicate the rigid of washing facility suspension
Degree, M indicate the quality of washing facility undergarment, nMIndicate the corresponding motor compensating tachometer value of mass M.
Optionally, the motor is braked, comprising:
Generate brake instruction；
The brake instruction is sent to the brake gear of the motor.
Optionally, the method also includes:
If the current rotating speed is higher than the threshold value, the revolving speed for controlling the motor continues at the uniform velocity to drop by predetermined acceleration
It is low.
Second aspect, the embodiment of the present invention provide a kind of motor control assembly of washing facility, comprising:
Module is obtained, for obtaining the current rotating speed of the motor when the motor of washing facility starts reduction of speed；
Slowdown module, the revolving speed for controlling the motor are at the uniform velocity reduced by predetermined acceleration；
Judgment module, for judging whether the current rotating speed of the motor is higher than threshold value, the threshold value is lower than the motor
Start revolving speed when reduction of speed, and is greater than zero speed；
Brake module, for braking the motor when the current rotating speed is not higher than the threshold value.
Optionally, the control device further include:
Quality detection module, for detecting the quality of washing facility undergarment；
Rigidity obtains module, for obtaining the rigidity of washing facility suspension；
Offset obtains module, for obtaining compensating rotational speed value corresponding with the quality；
Computing module, for calculating threshold value according to the quality, rigidity and compensating rotational speed value.
Optionally, the threshold value is calculated as follows in the computing module:
In formula, nCloselyIndicate threshold value,Indicate that the resonance speed of motor, k indicate the rigid of washing facility suspension
Degree, M indicate the quality of washing facility undergarment, nMIndicate the corresponding motor compensating tachometer value of mass M.
Optionally, the brake module includes:
Instruction generation unit, for generating brake instruction；
Instruction sending unit, for the brake instruction to be sent to the brake gear of the motor.
The third aspect, the embodiment of the present invention also provide a kind of washing facility, fill including motor control described in second aspect
It sets.
Compared with prior art, the motor control method for a kind of washing facility that the embodiment of the present invention proposes, in washing facility
Motor when starting reduction of speed, first control the revolving speed uniform descent of motor to threshold value, then turn motor by way of braking motor
It is fast to be quickly reduced to zero.By above-mentioned technological means, since revolving speed drops to after threshold value the decrease speed for passing through braking and accelerating revolving speed,
It avoids and hits a barrel shifting phenomena caused by the resonance zone of suspension since washing facility roller passes through for a long time, and drop
The time of speed consumption is short, and the braking motor again after revolving speed is reduced to Near resonance oscillating speed, and the noise of generation is small, improves user
Experience.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is a kind of motor control method flow chart of washing facility provided in an embodiment of the present invention；
Fig. 2 is a kind of motor control assembly schematic diagram provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of motor control method of washing facility provided in an embodiment of the present invention, and the control method is applied to
The motor of washing facility, as shown in Figure 1, the motor control method, comprising:
S1. when the motor of washing facility starts reduction of speed, the current rotating speed of the motor is obtained；
Motor reduction is motor speed reduction；
Specifically, in the embodiment of the present application, the current rotating speed of motor can pass through any method in following methods
It obtains, but is not limited solely to following methods, or other methods:
(1) reflection method: a white line is drawn in motor rotating part, is irradiated with a branch of strong light, uses photoelectricity
Element testing is reflective, forms pulse signal, counts within a certain period of time to pulse, so that it may converse motor speed.
(2) magnetoelectricity method: one block of magnet is fixed in motor rotating part, the circumferential outer edge in magnet movement track sets a line
Circle, coil can generate pulse voltage of reaction when motor rotates, and count within a certain period of time to pulse, so that it may converse electricity
Machine revolving speed.
(3) raster method: fixing a disk on motor rotation axis, can have light passing slot on disk, is arranged in disk two sides and sends out
Optical element and light receiving element, when motor rotates, light receiving element periodically by illumination, generates electric pulse, right within a certain period of time
Pulse is counted, so that it may converse motor speed.
(4) Hall switch detection method: one block of magnet is fixed in motor rotating part, the circumferential outer edge in magnet movement track
If a Hall switch, Hall switch periodicity induced magnetism line when motor rotates generates pulse voltage, within a certain period of time to arteries and veins
Rush in capable counting, so that it may converse motor speed.
S2. the revolving speed for controlling the motor is at the uniform velocity reduced by predetermined acceleration；
Specifically, in the embodiment of the present application, controlling motor driver to motor by the control system of washing facility
Driving signal is sent, the frequency of driving signal is controlled by control system, realizes the control to motor speed.
S3. judge whether the current rotating speed of the motor is higher than threshold value, when the threshold value starts reduction of speed lower than the motor
Revolving speed, and be greater than zero speed；
Specifically, in the embodiment of the present application, the current rotating speed of motor can pass through any method in following methods
It obtains, but is not limited to following methods:
(1) reflection method: a white line is drawn in motor rotating part, is irradiated with a branch of strong light, uses photoelectricity
Element testing is reflective, forms pulse signal, counts within a certain period of time to pulse, so that it may converse motor speed.
(2) magnetoelectricity method: one block of magnet is fixed in motor rotating part, the circumferential outer edge in magnet movement track sets a line
Circle, coil can generate pulse voltage of reaction when motor rotates, and count within a certain period of time to pulse, so that it may converse electricity
Machine revolving speed.
(3) raster method: fixing a disk on motor rotation axis, can have light passing slot on disk, is arranged in disk two sides and sends out
Optical element and light receiving element, when motor rotates, light receiving element periodically by illumination, generates electric pulse, right within a certain period of time
Pulse is counted, so that it may converse motor speed.
(4) Hall switch detection method: one block of magnet is fixed in motor rotating part, the circumferential outer edge in magnet movement track
If a Hall switch, Hall switch periodicity induced magnetism line when motor rotates generates pulse voltage, within a certain period of time to arteries and veins
Rush in capable counting, so that it may converse motor speed.
(5) calculating method: obtain motor revolving speed start reduce when the motor speed, obtain motor speed decline when
Between length, calculate current rotating speed according to the following formula:
rN=r0-t·d
In formula, rNIndicate the current rotating speed of motor, r0Indicate that the revolving speed of motor starts motor speed when reducing, t indicates electricity
The time span of machine revolving speed decline, d indicate acceleration.
Specifically, in the embodiment of the present application, threshold value is close to the coboundary of the resonance zone of washing facility suspension
When motor revolving speed, threshold value be greater than washing facility motor resonance speed (resonance speed be motor out-of-balance force generate exciting
Frequency corresponding revolving speed when unanimously causing to resonate with the intrinsic frequency of motor and its supporting system), threshold value passes through following methods
It obtains:
Detect the quality of washing facility undergarment；
Obtain the rigidity of washing facility suspension；
Obtain compensating rotational speed value corresponding with the quality；
According to the quality and rigidity, the resonance speed of motor is calculated；
According to resonance speed and compensating rotational speed value, threshold value is calculated.
Specifically, the threshold value is calculated as follows:
In formula, nCloselyIndicate threshold value,Indicate that the resonance speed of motor, k indicate the rigid of washing facility suspension
Degree, M indicate the quality of washing facility undergarment, nMIndicate that the corresponding compensating rotational speed value of mass M, the compensating rotational speed value are to pass through
The value that a large amount of washing facility reduction of speed experiment calculations come out ensure that and be greater than resonance speed n in the revolving speed of washing facility motorM
When, the reduction of speed effect for carrying out brake to washing facility is best.
If S4. the current rotating speed is not higher than the threshold value, the motor is braked.
Specifically, in the embodiment of the present application, passing through following any mode braking motors:
(1) control system of washing facility generates brake instruction；
The brake instruction is sent to the brake gear of the motor；
Pass through brake gear braking motor.
(2) driving frequency of the driving signal of washing facility control system control motor driver output is zero.
S4 further include: if the current rotating speed is higher than the threshold value, the revolving speed for controlling the motor continues to add by default
Speed at the uniform velocity reduces.
The embodiment of the present invention propose a kind of washing facility motor control method, by control motor revolving speed at the uniform velocity under
After being down to threshold value, motor speed is set quickly to be reduced to zero by way of braking motor.By above-mentioned technological means, due to revolving speed
Pass through the decrease speed that braking accelerates revolving speed after dropping to threshold value, avoids since washing facility roller is by suspension for a long time
A barrel shifting phenomena is hit caused by the resonance zone of system, and the time of reduction of speed consumption is short, and is reduced to Near resonance oscillating in revolving speed
Braking motor again after speed, the noise of generation is small, improves the experience of user.
Based on identical inventive concept, the embodiment of the present invention also provides a kind of motor control for realizing above-mentioned control method
Device processed, applied to the motor of washing facility, as shown in Fig. 2, the control device includes:
Module is obtained, for obtaining the current rotating speed of the motor when the motor of washing facility starts reduction of speed；
Slowdown module, the revolving speed for controlling the motor are at the uniform velocity reduced by predetermined acceleration；
Judgment module, for judging whether the current rotating speed of the motor is higher than threshold value；
Brake module brakes the motor if being not higher than the threshold value for the current rotating speed.
The control device further include:
Quality detection module, for detecting the quality of washing facility undergarment；
Rigidity obtains module, for obtaining the rigidity of washing facility suspension；
Offset obtains module, for obtaining compensating rotational speed value corresponding with the quality；
Computing module, for determining threshold value corresponding with the quality according to the quality, rigidity and compensating rotational speed value.
The threshold value is calculated as follows in the computing module:
In formula, nCloselyIndicate threshold value,Indicate that the resonance speed of motor, k indicate the rigid of washing facility suspension
Degree, M indicate the quality of washing facility undergarment, nMIndicate the corresponding compensating rotational speed value of mass M.
The brake module includes:
Instruction generation unit, for generating brake instruction；
Instruction sending unit, for the brake instruction to be sent to the brake gear of the motor.
The embodiment of the present invention also provides a kind of washing facility, including above-mentioned motor control assembly.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that each reality of the present invention
Applying method described in example can realize by means of software and necessary general hardware platform, naturally it is also possible to by hardware,
But the former is more preferably embodiment in many cases.Based on this understanding, technical solution of the present invention is substantially in other words
The part that contributes to existing technology can be embodied in the form of software products, which is stored in one
In a storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be hand
Machine, computer, server, air conditioner or network equipment etc.) execute method or implementation described in each embodiment of the present invention
Method described in certain parts of example.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (11)
1. a kind of motor control method of washing facility characterized by comprising
When the motor of washing facility starts reduction of speed, the current rotating speed of the motor is obtained；
The revolving speed for controlling the motor is at the uniform velocity reduced by predetermined acceleration；
Judging whether the current rotating speed of the motor is higher than threshold value, the threshold value starts revolving speed when reduction of speed lower than the motor,
And it is greater than zero speed；
If the current rotating speed is not higher than the threshold value, the motor is braked.
2. control method according to claim 1, which is characterized in that the threshold value is the resonance speed greater than the motor
Tachometer value.
3. control method according to claim 2, which is characterized in that judge the motor current rotating speed whether high threshold
Before, further includes:
Detect the quality of washing facility undergarment；
Obtain the rigidity of washing facility suspension；
Obtain motor compensating tachometer value corresponding with the quality；
According to the resonance speed of motor described in the quality, Rigidity Calculation；
According to the resonance speed and motor compensating tachometer value, the threshold value is calculated.
4. control method according to claim 3, which is characterized in that according to the resonance speed and motor compensating revolving speed
Value, is calculated as follows threshold value:
In formula, nCloselyIndicate threshold value,Indicate that the resonance speed of motor, k indicate the rigidity of washing facility suspension, M table
Show the quality of washing facility undergarment, nMIndicate the corresponding motor compensating tachometer value of mass M.
5. control method according to claim 1, which is characterized in that brake the motor, comprising:
Generate brake instruction；
The brake instruction is sent to the brake gear of the motor.
6. control method according to claim 1, which is characterized in that the method also includes:
If the current rotating speed is higher than the threshold value, the revolving speed for controlling the motor continues at the uniform velocity to reduce by predetermined acceleration.
7. a kind of motor control assembly of washing facility characterized by comprising
Module is obtained, for obtaining the current rotating speed of the motor when the motor of washing facility starts reduction of speed；
Slowdown module, the revolving speed for controlling the motor are at the uniform velocity reduced by predetermined acceleration；
Judgment module, for judging whether the current rotating speed of the motor is higher than threshold value, the threshold value starts lower than the motor
Revolving speed when reduction of speed, and it is greater than zero speed；
Brake module, for braking the motor when the current rotating speed is not higher than the threshold value.
8. control device according to claim 7, which is characterized in that the control device further include:
Quality detection module, for detecting the quality of washing facility undergarment；
Rigidity obtains module, for obtaining the rigidity of washing facility suspension；
Offset obtains module, for obtaining compensating rotational speed value corresponding with the quality；
Computing module, for calculating threshold value according to the quality, rigidity and compensating rotational speed value.
9. control device according to claim 8, which is characterized in that the threshold value is calculated as follows in the computing module:
In formula, nCloselyIndicate threshold value,Indicate that the resonance speed of motor, k indicate the rigidity of washing facility suspension, M table
Show the quality of washing facility undergarment, nMIndicate the corresponding motor compensating tachometer value of mass M.
10. control device according to claim 7, which is characterized in that the brake module includes:
Instruction generation unit, for generating brake instruction；
Instruction sending unit, for the brake instruction to be sent to the brake gear of the motor.
11. a kind of washing facility, which is characterized in that including the described in any item motor control assemblies of claim 7-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367710.2A CN109487498B (en) | 2018-11-16 | 2018-11-16 | Motor control method and device of washing equipment and washing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367710.2A CN109487498B (en) | 2018-11-16 | 2018-11-16 | Motor control method and device of washing equipment and washing equipment |
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| Publication Number | Publication Date |
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| CN109487498A true CN109487498A (en) | 2019-03-19 |
| CN109487498B CN109487498B (en) | 2020-08-18 |
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| CN201811367710.2A Active CN109487498B (en) | 2018-11-16 | 2018-11-16 | Motor control method and device of washing equipment and washing equipment |
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| CN107177956A (en) * | 2017-05-08 | 2017-09-19 | 无锡飞翎电子有限公司 | Washing machine and its dehydration controlling method, device |
| CN107190464A (en) * | 2017-05-27 | 2017-09-22 | 青岛海尔洗衣机有限公司 | The control method and washing machine of a kind of washing machine |
| CN107401022A (en) * | 2017-09-06 | 2017-11-28 | 海信（山东）冰箱有限公司 | A kind of control method of washing machine, control device and washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080085395A (en) * | 2007-03-19 | 2008-09-24 | 엘지전자 주식회사 | Controlling method for drum washer |
| DE102014107695A1 (en) * | 2013-06-04 | 2014-12-04 | Whirlpool Corporation (A Delaware Corporation) | Method for operating a laundry treatment device |
| US9163346B2 (en) * | 2014-01-29 | 2015-10-20 | Alliance Laundry Systems, Llc | Washing machine control system and methods |
| CN106283515A (en) * | 2015-05-29 | 2017-01-04 | 青岛海尔滚筒洗衣机有限公司 | The brake control method of a kind of washing machine frequency conversion motor and washing machine |
| CN107177956A (en) * | 2017-05-08 | 2017-09-19 | 无锡飞翎电子有限公司 | Washing machine and its dehydration controlling method, device |
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