CN1962997A - Washing machine and method for detecting unbalanced state of laundry therein - Google Patents
Washing machine and method for detecting unbalanced state of laundry therein Download PDFInfo
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- CN1962997A CN1962997A CNA2006100772619A CN200610077261A CN1962997A CN 1962997 A CN1962997 A CN 1962997A CN A2006100772619 A CNA2006100772619 A CN A2006100772619A CN 200610077261 A CN200610077261 A CN 200610077261A CN 1962997 A CN1962997 A CN 1962997A
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- 238000005406 washing Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000523 sample Substances 0.000 claims description 15
- 239000000284 extract Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/48—Preventing or reducing imbalance or noise
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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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/08—Control circuits or arrangements thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/16—Imbalance
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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
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/24—Spin speed; Drum movements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/26—Imbalance; Noise level
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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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
A washing machine which determines an unbalanced state of laundry using an unbalance value and a variation of the unbalance value according to time so as to reduce the generation of vibration and noise, and a method for detecting the unbalanced state of the laundry therein. The washing machine includes a rotary tub containing laundry, a washing motor for rotating the rotary tub, a motor speed detecting unit detecting the speed of the washing motor and outputting a motor speed signal, and a controller calculating an unbalance value of the laundry and a variation of the unbalance value using the motor speed signal, determining the unbalanced state of the laundry in the rotary tub using the unbalance value and the variation of the unbalance value, and controlling the washing motor according to determination results.
Description
Technical field
The present invention relates to washing machine and be used to survey the wherein method of the non-equilibrium state of clothing.More particularly, the present invention relates to washing machine, by the variation of the unbalanced value and the unbalanced value of the speed calculation of utilizing clothing, this washing machine determines whether the clothing in the rotating cylinder is in non-equilibrium state, and the present invention relates to be used to survey the wherein method of non-equilibrium state.
Background technology
Usually, traditional washing machine be to use the emulsification of washing agent, because the friction between the rotation rotating cylinder of rotating cylinder and the placement clothing wherein and impose on the impact of clothing and remove the device of multiple dirt from clothing.
In Figure 1A, behind supply slurry and washing agent, traditional washing machine 1 order put rules into practice washing, rinsing and the dehydrating operations of time.Washing and rinsing operation are carried out along clockwise and anticlockwise rotation by the rotating cylinder 2 of accommodating laundry 3.Shown in Figure 1A, behind aforesaid operations, clothing 3 may accumulate in a side of rotating cylinder 2, thereby causes rotating cylinder 2 to become uneven.In the washing and rinsing operation of rotating cylinder 2 with lower speed rotation therein, the non-equilibrium state of the clothing 3 shown in Figure 1A can not give rise to trouble, but in the dehydrating operations that rotating cylinder 2 rotates at a high speed, can cause rotating cylinder 2 serious vibration and very noisies, and damage washing machine 1 therein.In order to prevent noise and vibration, after the rinsing operation, clothing 3 is in the uniform state shown in Figure 1B, carries out dehydrating operations then.
Traditionally, in order to determine whether clothing is in non-equilibrium state, use the fluctuation of the speed of washing motor.Fig. 2 is the curve of speed of explanation motor, is used for illustrating the conventional method of non-equilibrium state of the clothing of the rotating cylinder that is used for the sensing washing machine.In conventional method, keep under the uniform situation in the speed of rotating cylinder, determine by the velocity deviation of surveying rotating cylinder whether the clothing in the rotating cylinder is in non-equilibrium state.Yet, as shown in Figure 2, under the condition of rotating cylinder with low speed rotation, when being determined to clothing in the rotating cylinder and being in non-equilibrium state, the clothing motion, and motor is to be rotated by the speed shown in the line of slide.The actual average speed of motor is shown by dotted line.The motor average speed that calculates is shown by the single-point line.When the velocity variations of the mean value calculation motor of the motor speed that use to calculate, the value of acquisition is different from actual value, thereby the non-equilibrium state that causes determining rotating cylinder is made mistakes.
In addition, shown in Fig. 1 C, when the clothing in the rotating cylinder 23 is in the taper non-equilibrium state, promptly when the clothing 3 of the inlet of the rotating cylinder 2 that is in symmetric position and inner periphery is uneven, can not easily detect the deviation of the rotary speed of rotating cylinder 2.Fig. 3 has shown when occurring owing to taper non-equilibrium state generation vibration, the motion state of rotating shaft.Because the taper non-equilibrium state appears at the symmetric position place of rotating cylinder, when low revolutions per minute (rpm), the deviation of the rotary speed of rotating cylinder is less.Therefore, for sensing taper non-equilibrium state, washing motor is driven imperturbably with the speed near resonance rpm.Yet when detecting the taper non-equilibrium state when at high rpm, because the vibration that the taper non-equilibrium state causes, noise increases, and may cause the mechanical failure to washing machine.
When the rotary speed of rotating cylinder reduces to prevent because when vibration that the taper non-equilibrium state causes and noise, departing from of the rotary speed of rotating cylinder reduces, thereby cause being difficult to the sensing non-equilibrium state, and the vibration during the dehydrating operations that causes owing to the mistake in the sensing non-equilibrium state produces noise.
Summary of the invention
Therefore, one aspect of the present invention is to provide a kind of non-equilibrium state of accurately surveying clothing to reduce to vibrate with the washing machine of noise and to be used to survey the wherein method of the non-equilibrium state of clothing.
Another aspect of the present invention is to provide a kind of washing machine, even this washing machine also can accurately be surveyed the non-equilibrium state of clothing when hanging down rpm, the taper non-equilibrium state of clothing particularly, to reduce vibration and noise, and shorten the time of carrying out total washing operation and be used to survey the wherein method of the non-equilibrium state of clothing.
Others of the present invention and/or advantage part provide by following description, and part will become obviously from these are described, and perhaps recognize by enforcement of the present invention.
By a kind of washing machine is provided, can realize aforementioned and/or others of the present invention, described washing machine comprises: the rotating cylinder of accommodating laundry wherein; The washing motor of rotation rotating cylinder; Survey the speed of washing motor and the motor speed probe unit of output motor rate signal; And controller, described controller uses motor velocity signal to calculate the unbalanced value of clothing and the variation of unbalanced value, uses the variation of described unbalanced value and unbalanced value to determine the non-equilibrium state of clothing and control washing motor according to the result who determines.
Described controller uses the speed ripple that extracts from motor velocity signal, calculates the unbalanced value of clothing and the variation of unbalanced value.
By real-time detection speed ripple, described controller calculates the unbalanced value of clothing and the variation of unbalanced value.
Described controller uses during the velocity variations of washing motor, and the speed ripple from motor velocity signal extracts calculates the unbalanced value of clothing and the variation of unbalanced value.
Described controller comprises the motor speed processing unit, and described motor speed processing unit is from motor velocity signal speed of detection ripple, and the absolute value of the speed ripple of calculating detection, and uses the absolute value calculating unbalanced value of speed ripple and the variation of unbalanced value.
Described controller comprises that also the absolute value that uses the speed ripple calculates the unbalanced value probe unit of unbalanced value.Described unbalanced value probe unit is low pass filter (LPF).
Respectively by the variation of unbalanced value and unbalanced value is compared with predetermined first reference value, and another unbalanced value by the clothing that will obtain by the rpm that increases washing motor and predetermined second reference value are relatively, and described controller is determined the non-equilibrium state of the clothing in the rotating cylinder.
By taper unbalanced value and first and second reference values of being scheduled to are compared, determine the non-equilibrium state of clothing.
Another object of the present invention is to be provided for surveying the method for the non-equilibrium state of the clothing in the washing machine, described washing machine has the rotating cylinder of accommodating laundry and the washing motor of rotation rotating cylinder, and described method comprises: rotary speed and the output motor rate signal of surveying washing motor; Use the motor velocity signal of output, calculate the variation of the unbalanced value and the unbalanced value that are contained in the clothing in the rotating cylinder; With passing through the variation of unbalanced value and unbalanced value and reference value are separately compared, determine the non-equilibrium state of clothing.
The calculating of the unbalanced value of clothing and the variation of unbalanced value comprises: from the motor velocity signal extraction rate ripple of output; With the speed ripple that uses extraction, the variation of calculating unbalanced value and unbalanced value.
Use the speed ripple of extract real-time, the variation of calculating the unbalanced value and the unbalanced value of clothing in real time.
The speed ripple that use is extracted during the velocity variations of washing motor calculates the unbalanced value of clothing and the variation of unbalanced value.
The calculating of the unbalanced value of clothing and the variation of unbalanced value also comprises: calculate the absolute value of the speed ripple that extracts, and use this absolute value to calculate the unbalanced value of clothing and the variation of unbalanced value.
The non-equilibrium state of determining clothing comprises: respectively the variation of unbalanced value and unbalanced value is compared with first reference value of being scheduled to; Increase the rpm of washing motor; Compare with unbalanced value that will newly obtain and predetermined second reference value.
By taper unbalanced value and first and second reference values of being scheduled to are compared, determine the non-equilibrium state of clothing.
Description of drawings
In conjunction with the accompanying drawings, by the following description to embodiment, these and/or further feature of the present invention and advantage will become more apparent and be more readily understood.
Figure 1A is the cross sectional view that shows the non-equilibrium state of the clothing in the rotating cylinder of conventional washer;
Figure 1B is the cross sectional view that shows the poised state of the clothing in the washing machine shown in Figure 1A;
Fig. 1 C is the schematic diagram that shows the taper non-equilibrium state of the clothing in the rotating cylinder shown in Figure 1A;
Fig. 2 is the curve that shows motor speed, is used for illustrating the conventional method of non-equilibrium state of the clothing of the rotating cylinder that is used for the sensing washing machine;
Fig. 3 shows when the vibration that takes place to cause owing to the taper non-equilibrium state schematic diagram of the motion state of rotating shaft in conventional washer;
Fig. 4 is the signal control block diagram of washing machine according to an embodiment of the invention;
Fig. 5 shows the block diagram of the detailed structure of the controller of washing machine according to an embodiment of the invention;
Fig. 6 is the curve that shows the waveform of the motor velocity signal that is used to handle washing machine according to an embodiment of the invention;
Fig. 7 shows to be used for the sensing curve of the driving pattern of the washing motor of the taper non-equilibrium state of the clothing of the rotating cylinder of washing machine according to an embodiment of the invention;
Fig. 8 is the curve of demonstration according to the waveform of the non-equilibrium state detectable signal of the multiple taper unbalanced value of rpm; With
Fig. 9 shows the flow chart of the dehydrating operations of washing machine according to an embodiment of the invention.
The specific embodiment
Now, will be described in detail its example embodiments of the invention illustrated in the accompanying drawings, wherein similar from start to finish label is represented similar elements.With reference to figure, below will be described the explanation embodiments of the invention.
Fig. 4 is the signal control block diagram of the control system of washing machine according to an embodiment of the invention.Described washing machine comprises the relevant parts of non-equilibrium state of surveying clothing.Or rather, as shown in Figure 4, washing machine of the present invention comprises: input block 40; Controller 42; Electric-motor drive unit 44; Motor speed probe unit 46; With washing motor 45.Washing machine of the present invention also can comprise and operate other relevant parts such as other of washing and rinsing operation.
The multiple operational order that washing machine of the present invention utilizes the user to pass through input block 40 inputs drives.Controller 42 is analyzed the operational order of being imported by the user, and control signal is outputed to electric-motor drive unit 44.Electric-motor drive unit 44 receives control signal, and will output to washing motor 45 such as the operation signal of PWM (pulsewidth modulation) signal.Washing motor 45 is driven with the rpm (revolutions per) that is fit to according to the operation signal of input.Motor speed probe unit 46 is surveyed the rotary speed of washing motor 45, and motor velocity signal is outputed to controller 42.For example, motor speed probe unit 46 is Hall element or encoder.Yet the motor speed probe unit is not limited to this, and can change as required.
Fig. 5 has shown the detailed configuration of controller 42.Below, with reference to Fig. 5 and Fig. 6, use description to calculate the process of unbalanced value.Be imported into the motor velocity signal processing unit 50 of controller 42 from the motor velocity signal (Y1) of motor speed probe unit 46 outputs.Motor velocity signal processing unit 50 is from motor velocity signal (Y1) the extraction rate ripple (Y2) of input, and the absolute value (Y2 of computational speed ripple (Y2)
*Y2), so that the speed ripple (Y2) that extracts is converted to RMS (root mean square) value.Realize the extraction of speed ripple (Y2) by high-pass filter (HPF) or bandpass filter (BPF) from motor velocity signal (Y1).When washing motor 45 is operated with constant speed, irrelevant corresponding to the DC component and the non-equilibrium state of constant speed, thus removed by HPF or BPF.In addition, because HPF or BPF have removed and the irrelevant mechanical noise of non-equilibrium state, can accurately determine the non-equilibrium state of clothing.The speed ripple (Y2) by wave filter has been by power, thereby produces absolute value (Y3).Absolute value (Y3), i.e. RMS value, calculating, be used to provide the convenience in the comparison and obtain accurate unbalanced value.
Speed ripple absolute value (Y3) is imported into unbalanced value probe unit 52, then unbalanced value probe value 52 output current unbalanced value (Y4).Unbalanced value probe unit 52 comprises low pass filter (LPF), inbound pacing ripple absolute value (Y3), and the easy current unbalanced value (Y4) relatively of output.In addition, because LPF has removed and the irrelevant noise of non-equilibrium state, can accurately determine the non-equilibrium state of clothing.
Be imported into unbalanced value change calculations unit 54 from the unbalanced value (Y4) of unbalanced value probe unit 52 outputs.The sampling of the unbalanced value (Y4) of fixed times is carried out in unbalanced value change calculations unit 54, and with the summation of all unbalanced value (Y4) divided by the described time, thereby draw the variation of unbalanced value (Y4) according to the time.Unbalanced value (Y4) and unbalanced value (Y4) are imported into non-equilibrium state determining unit 56 according to the variation of time.Non-equilibrium state determining unit 56 with unbalanced value (Y4) and unbalanced value (Y4) relatively according to the variation of time and reference value, thereby determine the non-equilibrium state of clothing.When definite clothing was in the non-equilibrium state, motor control unit 58 stopped the operation of washing motor, and compatibly controlled washing motor 45 to carry out the clothing rotating operation once more.When definite clothing was in poised state, motor control unit 58 increased the rpm of washing motor, to start the high speed dewatering pattern.
Fig. 7 is used for the sensing curve of the driving pattern of the washing motor of the taper non-equilibrium state of the clothing of washing machine according to an embodiment of the invention.As mentioned above, because in the taper non-equilibrium state, when hanging down rpm, the deviation of rotating cylinder rotary speed is very little, is difficult to the sensing clothing and whether is in the taper non-equilibrium state.Reference has shown that for sensing taper non-equilibrium state, rpm must increase near resonance bands according to the curve shown in Fig. 8 of the waveform of the multiple taper unbalanced value of rpm.The increase of this rpm causes the increase of dewatering time and the increase of noise and vibration.In the present invention, be approximate 100 o'clock the unbalanced value and the variation sensing taper non-equilibrium state according to the time of unbalanced value by rpm.Preferably, the rpm that is used for sensing taper non-equilibrium state is set to the point that unbalanced value altered a great deal according to the time.Described rpm can reset by test.Fig. 8 has shown example of test, and demonstrates: represented to be used for the variation according to the time of the unbalanced value of sensing non-equilibrium state when approximate 100rpm well.
In the present invention, owing to use the non-equilibrium state according to the variation sensing clothing of time of unbalanced value, can be with the relatively low rpm common non-equilibrium state of sensing accurately, and the taper non-equilibrium state.Or rather, when the variation according to the time of unbalanced value of surveying with low rpm and unbalanced value is obtained, calculate the unbalanced value of specifying the resonance bands place, thus can be accurately and the non-equilibrium state of sensing clothing effectively.
In addition, because the extraction of operating speed ripple has realized the detection of pure unbalanced value by removing noise, the unbalanced value during computational speed changes in real time, thereby the variation according to the time of calculating unbalanced value.
Correspondingly, as shown in Figure 7, be increased to from 100rpm under the situation of 400rpm, realize determining of non-equilibrium state by the variation according to the time of calculating unbalanced value and unbalanced value in the speed of washing motor; And when the clothing in determining washing machine was in non-equilibrium state, the speed of washing motor 45 reduced and carries out the clothing rotating operation once more.Thereby, can shorten the time that the total laundry operations of washing machine is carried out.
Fig. 9 is the flow chart that shows according to the dehydrating operations of washing machine of the present invention.In operation 810, the operational order that utilizes the user to import, after laundry and rinsing operation are performed, the startup dehydrating operations.From operating 810, technology moves to operation 820, and in operation 820, execution is used for clothing evenly is positioned at the clothing rotary manipulation of poised state, so that prevent because noise and the vibration that the non-equilibrium state of clothing causes.In operation 820, carry out the clothing winding operation after the scheduled time, for sensing non-equilibrium state as shown in Figure 7, technology moves to operation 830, in operation 830, under the condition that the rotary speed of washing motor is conditioned, be contained in the unbalanced value of the clothing in the rotating cylinder and unbalanced value according to the variation of time by sensing in real time.From operating 830, technology moves to operation 840, in operation 840, with the rpm that the variation according to the time of unbalanced value is expressed well, be used for determining the unbalanced value of non-equilibrium state and unbalanced value according to the variation of time respectively with first reference value that is used to survey the taper state (first maximum conditions) relatively.When the variation according to the time of unbalanced value and unbalanced value was lower than first reference value respectively, technology moved to operation 850, and in operation 850, the rotary speed of washing motor increases.Though the comparison by using first maximum conditions is the sensing non-equilibrium state accurately, in operation 860, be added in the rotary speed of washing motor under the condition of rpm of appointment, unbalanced value obtains continuous detection, and from operating 860, technology moves to operation 870, and in operation 870, the unbalanced value of detection and second reference value (second maximum conditions) are relatively.Because unbalanced value operating speed ripple is surveyed, can determine whether clothing is in non-equilibrium state during the rotary speed of washing motor changes.The result when the unbalanced value of surveying is lower than second reference value, determines that clothing is positioned in the rotating cylinder equably as a comparison, and in operation 880, starts the high speed dewatering pattern.On the other hand, when the value that obtains does not satisfy first or second maximum conditions, then carry out the clothing winding operation once more.
Can obviously find out from foregoing description, the invention provides washing machine, the unbalanced value of speed ripple of washing motor and the variation according to the time of unbalanced value have been used in utilization, described washing machine determines whether the clothing in the rotating cylinder is in non-equilibrium state, so that the non-equilibrium state of the clothing in the sensing rotating cylinder accurately, and the invention provides and be used to survey the wherein method of clothing non-equilibrium state.
Owing to use the non-equilibrium state according to the clothing in the rotating cylinder of the variation of time and unbalanced value sensing washing machine of unbalanced value, can be with relatively low rpm sensing non-equilibrium state accurately.
In addition, washing machine of the present invention can accurately sense the taper non-equilibrium state of clothing with low rpm.
Because by sensing, the time that total laundry operations of execution washing machine takies is shortened the non-equilibrium state of clothing with low rpm.
Though shown and described embodiments of the invention, those skilled in the art will recognize: under the situation that does not deviate from principle of the present invention and spirit, can change described embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (16)
1. washing machine comprises:
The rotating cylinder of accommodating laundry wherein;
The washing motor of rotation rotating cylinder;
Survey the speed of washing motor and the motor speed probe unit of output motor rate signal; With
Controller, described controller uses motor velocity signal to calculate the unbalanced value of clothing and the variation of described unbalanced value, the non-equilibrium state of the clothing in the rotating cylinder is determined in the variation of use unbalanced value and unbalanced value, and controls washing motor according to the result who determines.
2. washing machine according to claim 1, wherein: described controller uses the speed ripple that extracts from motor velocity signal, calculates the unbalanced value of clothing and the variation of unbalanced value.
3. washing machine according to claim 2, wherein: described controller calculates the unbalanced value of clothing and the variation of unbalanced value by real-time detection speed ripple.
4. washing machine according to claim 2, wherein: described controller uses the speed ripple that extracts from motor velocity signal during the velocity variations of washing motor, calculates the unbalanced value of clothing and the variation of unbalanced value.
5. washing machine according to claim 1, wherein said controller comprises: the motor velocity signal processing unit, described motor velocity signal processing unit is from the absolute value of the speed ripple of motor velocity signal speed of detection ripple and calculating detection, and the absolute value calculating unbalanced value of use speed ripple and the variation of unbalanced value.
6. washing machine according to claim 5, wherein said controller comprise that further the absolute value that uses the speed ripple calculates the unbalanced value probe unit of unbalanced value.
7. washing machine according to claim 6, wherein: described unbalanced value probe unit is low pass filter (LPF).
8. washing machine according to claim 1, wherein: respectively by the variation of unbalanced value and unbalanced value is compared with first reference value of being scheduled to, with another unbalanced value by the clothing that will obtain by the revolutions per minute that increases washing motor and predetermined second reference value relatively, described controller is determined the non-equilibrium state of the clothing in the rotating cylinder.
9. washing machine according to claim 8, wherein: the non-equilibrium state of clothing is by being determined taper unbalanced value and the first and second reference value comparisons of being scheduled to.
10. the method for the non-equilibrium state of a clothing that is used for surveying washing machine, described washing machine has the rotating cylinder of accommodating laundry and the washing motor of rotation rotating cylinder, and described method comprises:
Survey the rotary speed and the output motor rate signal of washing motor;
Use the motor velocity signal of output, calculate the unbalanced value of the clothing that holds in the rotating cylinder and the variation of unbalanced value; With
By the variation of unbalanced value and unbalanced value and reference value are separately compared, determine the non-equilibrium state of clothing.
11. method according to claim 10 is wherein calculated the unbalanced value of clothing and the variation of unbalanced value and is comprised:
Motor velocity signal extraction rate ripple from output; With
Use the speed ripple that extracts, calculate the variation of unbalanced value and unbalanced value.
12. method according to claim 11, wherein: use the speed ripple of extract real-time, the variation of calculating the unbalanced value and the unbalanced value of clothing in real time.
13. method according to claim 11, wherein: use the speed ripple that during the velocity variations of washing motor, extracts, calculate the unbalanced value of clothing and the variation of unbalanced value.
14. method according to claim 11, wherein the calculating of the variation of the unbalanced value of clothing and unbalanced value further comprises: calculate the absolute value of the speed ripple that extracts and use described absolute value to calculate the unbalanced value of clothing and the variation of unbalanced value.
15. method according to claim 10 determines that wherein the non-equilibrium state of clothing comprises:
Respectively the variation of unbalanced value and unbalanced value is compared with first reference value of being scheduled to;
Increase the revolutions per minute of washing motor; With
With unbalanced value that newly obtains and second reference value of being scheduled to relatively.
16. method according to claim 15, wherein:, determine the non-equilibrium state of clothing by taper unbalanced value and first and second reference values of being scheduled to are compared.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050106000A KR20070048918A (en) | 2005-11-07 | 2005-11-07 | Washing machine and its unbalance detection method |
| KR20050106000 | 2005-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1962997A true CN1962997A (en) | 2007-05-16 |
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ID=37682575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100772619A Pending CN1962997A (en) | 2005-11-07 | 2006-04-28 | Washing machine and method for detecting unbalanced state of laundry therein |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070101511A1 (en) |
| EP (1) | EP1783261A1 (en) |
| KR (1) | KR20070048918A (en) |
| CN (1) | CN1962997A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102888736A (en) * | 2012-05-31 | 2013-01-23 | 青岛澳柯玛洗衣机有限公司 | Device and method for detecting dehydration imbalance of drum washing machine |
| CN105506916A (en) * | 2014-09-25 | 2016-04-20 | 无锡小天鹅股份有限公司 | Washing machine and method for determining load eccentricity of washing machine |
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| US8695381B2 (en) * | 2008-03-28 | 2014-04-15 | Electrolux Home Products, Inc. | Laundering device vibration control |
| JP2010069293A (en) * | 2008-08-22 | 2010-04-02 | Panasonic Corp | Washing machine |
| WO2010071458A1 (en) | 2008-12-17 | 2010-06-24 | Fisher & Paykel Appliances Limited | A laundry machine |
| US8499392B2 (en) * | 2010-01-29 | 2013-08-06 | General Electric Company | Apparatus and method for detecting unbalanced loads in a washing machine |
| KR20120110047A (en) * | 2011-03-28 | 2012-10-09 | 주식회사 대우일렉트로닉스 | Method for determining balance of drum type washing machine |
| US8689641B2 (en) | 2012-07-17 | 2014-04-08 | Whirlpool Corporation | Detecting satellization of a laundry load |
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| GB2174513B (en) * | 1985-05-03 | 1988-11-09 | Hoover Plc | Spin speed control means for laundry spin driers or other centrifuges |
| FR2679080B1 (en) * | 1991-07-11 | 1994-03-11 | Motorola Semiconducteurs Sa | CONTROL CIRCUIT FOR A WASHING MACHINE FOR DETECTING LOAD IMBALANCE. |
| ES2141855T3 (en) * | 1995-03-11 | 2000-04-01 | Whirlpool Europ | METHOD AND ARRANGEMENT TO GET A BALANCE OF LOAD IN WASHING MACHINES. |
| KR100772365B1 (en) * | 2001-11-15 | 2007-11-01 | 삼성전자주식회사 | Tray guide structure for optical disc drive |
| JP4137809B2 (en) * | 2004-02-04 | 2008-08-20 | 株式会社リコー | Disk rotation device and disk drive device |
-
2005
- 2005-11-07 KR KR1020050106000A patent/KR20070048918A/en not_active Application Discontinuation
-
2006
- 2006-04-19 EP EP06008119A patent/EP1783261A1/en not_active Withdrawn
- 2006-04-24 US US11/409,051 patent/US20070101511A1/en not_active Abandoned
- 2006-04-28 CN CNA2006100772619A patent/CN1962997A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888736A (en) * | 2012-05-31 | 2013-01-23 | 青岛澳柯玛洗衣机有限公司 | Device and method for detecting dehydration imbalance of drum washing machine |
| CN102888736B (en) * | 2012-05-31 | 2014-12-03 | 青岛澳柯玛洗衣机有限公司 | Device and method for detecting dehydration imbalance of drum washing machine |
| CN105506916A (en) * | 2014-09-25 | 2016-04-20 | 无锡小天鹅股份有限公司 | Washing machine and method for determining load eccentricity of washing machine |
| CN105506916B (en) * | 2014-09-25 | 2019-05-21 | 无锡小天鹅股份有限公司 | Washing machine and the method for determining washing machine load bias |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070048918A (en) | 2007-05-10 |
| US20070101511A1 (en) | 2007-05-10 |
| EP1783261A1 (en) | 2007-05-09 |
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