CN101824730B - Control method and control device of washing machine - Google Patents
Control method and control device of washing machine Download PDFInfo
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- CN101824730B CN101824730B CN2010101744699A CN201010174469A CN101824730B CN 101824730 B CN101824730 B CN 101824730B CN 2010101744699 A CN2010101744699 A CN 2010101744699A CN 201010174469 A CN201010174469 A CN 201010174469A CN 101824730 B CN101824730 B CN 101824730B
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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
- D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps
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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
- D06F34/14—Arrangements for detecting or measuring specific parameters
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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
- D06F2103/40—Opening or locking status of doors
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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
- D06F2103/44—Current or voltage
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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
- D06F2105/62—Stopping or disabling machine operation
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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)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention relates to a control device and control method of a washing machine, the control method of the washing machine comprises the following steps: executing electricity generating brake after the duty ratio value is set to 0, when generating events; executing reverse brake after the duty ratio value is a preset first value, when the executing the electricity generating brake; executing the reverse brake after the duty ratio value is a preset second value, when the detected speed of a motor is smaller than a reference value. Therefore, under the state when operating the motor of the washing machine at washing/dewatering high speed RPM and generating the events of emergency braking, a PWM OFF signal interval can be removed to shorten the braking time to the duty ratio value during reverse brake to be changed according to the RPM, thereby decreasing the peak current and the noise of a coupling part, and improving the reliability of the product.
Description
Technical field
The present invention relates to the control device and the control method thereof of washing machine.
Background technology
In general, washing machine is a kind of device that washings such as clothing is washed through processes such as washing, cleaning and dehydrations.Be vertically or be horizontally disposed with that according to the inside groove of washings such as process clothes or the rotating shaft of cylinder above-mentioned washing machine can be divided into following several: rotating shaft is vertical overhead washing machine (Top LoadingWashing Machine); Rotating shaft is the preposition washing machine (Front Loading WashingMachine) of level; Roller washing machine (Drum Washer).
And above-mentioned washing machine applies mechanisms such as suitable friction or vibration by the washings that soaks in cleaning solution, will play the function of separating spot from washings.
For this reason, washing machine will be carried out the washing step that applies mechanicals efforts to the washings that mixes with cleaning solution, separate the cleaning step of the cleaning solution that contains spot from washings, and the process of separating the dehydration of rinse water from washings.
Summary of the invention
The objective of the invention is to overcome the prior art above shortcomings, improve by research, a kind of control device and control method thereof of washing machine are provided, in the present invention, in when, in the washing machine in running up brake hard taking place, (the Pulse Width Modulation: pulse width modulation) the PWM OFF signal spacing of voltage duty of the PWM when removal is used to control brake hard; Another object of the present invention is to provide a kind of control device and control method thereof of washing machine, in the present invention, when plugging, dutycycle (or duty ratio value) will be changed according to RPM (Revolution Per Minute-rotation number).
The technical scheme that the present invention provides is: the control method of washing machine of the present invention, it is characterized in that, may further comprise the steps: during some incidents in the situation that operation stops or temporary transient stop key is transfused to pent situation of situation, power supply or door be unlocked takes place, duty ratio value is set at the step that dynamic brake is carried out in 0 back; After carrying out above-mentioned dynamic brake, during through predefined time, duty ratio value is set at the step of predefined first value back execution plugging; When the speed of detected motor during, above-mentioned duty ratio value is set at the step that plugging is carried out in predefined second value back less than a reference value.
The control method of aforesaid washing machine is characterized in that: above-mentioned predefined first value is 100%, and above-mentioned predefined second value is the some values in 30% to 40%.
The control method of aforesaid washing machine is characterized in that: the above-mentioned predefined time is the some values among the 200ms to 300ms.
The control method of aforesaid washing machine is characterized in that: the said reference value is the some values among the 300rpm to 400rpm.
The control device of washing machine of the present invention is characterized in that, comprises with lower member: the speed test section that detects the speed of motor with pre-set time interval; During some incidents in the situation that operation stops or temporary transient stop key is transfused to pent situation of situation, power supply or door be unlocked takes place, according to the speed setting dutycycle of above-mentioned detected motor, and generate the control part of the control signal be used to carry out dynamic brake or plugging.
The control device of aforesaid washing machine is characterized in that: when above-mentioned incident takes place, after above-mentioned control part is set at 0 with duty ratio value, generate the control signal and the output that are used for dynamic brake.
The control device of aforesaid washing machine is characterized in that: above-mentioned control part after carrying out above-mentioned dynamic brake during through predefined time, dutycycle is set at predefined first value after, generate the control signal that is used for plugging and export.
The control device of aforesaid washing machine is characterized in that: when the speed of above-mentioned detected motor during less than a reference value, after above-mentioned control part is set at predefined second value with above-mentioned dutycycle, generate the control signal and the output that are used for plugging.
The control device of aforesaid washing machine is characterized in that: above-mentioned control part generates the control signal and the output that are used for carrying out with the predefined dutycycle corresponding with the speed of above-mentioned detected motor plugging according to the speed of above-mentioned detected motor.
The control method of washing machine of the present invention, it is characterized in that, may further comprise the steps: during some incidents in the situation that operation stops or temporary transient stop key is transfused to pent situation of situation, power supply or door be unlocked takes place, duty ratio value is set at the step that dynamic brake is carried out in 0 back; After carrying out above-mentioned dynamic brake, during through predefined time, duty ratio value is set at the step of predefined first value back execution plugging; According to the speed of detected motor, carry out the step of plugging with the predefined dutycycle corresponding with the speed of above-mentioned detected motor.
Compared with prior art, the invention has the beneficial effects as follows: when in the washing machine in running up brake hard taking place, PWM when removal is used to control brake hard (Pulse Width Modulation: pulse width modulation) the PWM OFF signal spacing of voltage duty, thus can shorten the braking time of motor;
And, control device and control method thereof according to the washing machine in the embodiment of the invention, when plugging, dutycycle (or duty ratio value) will be changed according to RPM (Revolution Per Minute-rotation number), thereby the noise of peak point current when reducing to stop and shaft coupling portion, can prevent the components damage that causes owing to overcurrent, and, can guarantee the reliability of product.
Description of drawings
Fig. 1 is the side cross-sectional view that is suitable for the roller washing machine of the embodiment among the present invention;
Fig. 2 is the block diagram of the control device of the washing machine in one embodiment of the invention;
Fig. 3 is the flow chart of the control method for washing machine in the first embodiment of the invention;
Fig. 4 is the flow chart of the control method for washing machine in the second embodiment of the invention.
The specific embodiment
A situation to washing machine describes in the present invention, but the present invention can be equally applicable to have with it in the car washing installations such as dryer of similar characteristics, and, though illustrate the structure of roller washing machine among Fig. 1, the present invention also is equally applicable in the washing machine of other kind.
Below, with reference to the accompanying drawings, structure in one embodiment of the invention and effect are described in detail.
Fig. 1 is the side cross-sectional view that is suitable for the roller washing machine of the embodiment among the present invention.
As shown in Figure 1, be provided with in the roller washing machine 100 with lower member: inside is formed with the shell (casing) 11 of spatial accommodation; Wash bucket 21 in the direction setting forwards of the inside of above-mentioned shell 11; The rotatable cylinder 31 that holds the inside that is arranged at above-mentioned wash bucket 21.
Above-mentioned shell 11 almost constitutes the lineal hexahedral shape, is formed with the opening 13 that washings is come in and gone out at its front panel, is provided with the door 15 that is used to open and close above-mentioned opening at the prolongation of above-mentioned opening 13.
Be provided with above-mentioned wash bucket 21 in the inside of above-mentioned shell 11, above-mentioned wash bucket 21 constitutes the open drum of one side, and holds washings in inside.And, be respectively arranged with support spring 25 and the damper 27 that is used to cushion the above-mentioned wash bucket 21 of support at the upside and the downside of above-mentioned wash bucket 21.
Rear end at above-mentioned wash bucket 21 is combined with spider (spider) 23, and above-mentioned spider 23 rotatable supports are arranged at the above-mentioned cylinder 31 of above-mentioned wash bucket 21 inside.And one is combined with drum drive motor 41 in the side, rear of above-mentioned spider 23, and above-mentioned drum drive motor 41 is used for rotation and drives above-mentioned cylinder 31.
In addition, upper area at above-mentioned wash bucket 21 is provided with feed pipe (not shown) and the feed-water valve (not shown) that is used for to the internal feed washings of above-mentioned wash bucket 21, and, be formed with the draining stream 22 of the draining pump 24 that is provided with in order to discharge washings in lower region thereof.
Side at above-mentioned draining stream 22 is formed with circulation stream 26, and the effect of above-mentioned circulation stream 26 is to draw the washings of above-mentioned wash bucket 21 inside, and make it be recycled to the upper area of above-mentioned wash bucket 21.And, in above-mentioned circulation stream 26, be provided with the circulating pump 28 that can aspirate washings.
By aforesaid structure, when the inside at above-mentioned cylinder 31 holds washings and supplies with washing agent and during washings, the above-mentioned drum drive motor 41 of control part (not shown) control is rotated above-mentioned cylinder 31, driving above-mentioned circulating pump 28 simultaneously makes washings obtain circulating and washing, when washing finishes, to control above-mentioned draining pump 24 and above-mentioned drum drive motor 41 and carry out draining and dehydration successively, and carry out repeatedly cleaning to the internal feed washings of above-mentioned wash bucket 21.
In addition, when the state of laying particular stress on setting with washings in the inside of above-mentioned cylinder 31 is carried out dehydration, washings lay particular stress on the supporting construction (not shown) that will cause above-mentioned cylinder 31, above-mentioned wash bucket 21 and above-mentioned cylinder 31 sustain damage and force wearing and tearing, in order to prevent the generation of above-mentioned situation, before dehydration, detect the offset of above-mentioned cylinder 31, and under offset is situation below a reference value, dewater.
Fig. 2 is the block diagram of the control device of the washing machine in one embodiment of the invention.As shown in the figure, the control device 200 of washing machine is made of power suppling part 210, control part 220, motor 230 and speed test section 240.
Comprise with lower member in the above-mentioned power suppling part 210: be input to AC power commonly used, and utilize diode rectifier etc. the AC power commonly used of above-mentioned input to be converted to the converter portion (converter) (not shown) of dc source; Be made of capacitor (capacitor) or the circuit that comprises above-mentioned capacitor, storage is from the dc source of above-mentioned converter portion output, and with the partes glabra (not shown) of its level and smooth output; Be connected in parallel with above-mentioned partes glabra, will be converted to motor drive power supply from the dc source of above-mentioned partes glabra output, and supply to the phase inverter portion (inverter) of above-mentioned motor 230; Reach from DC link (link) voltage of above-mentioned partes glabra output according to input voltage that is input to above-mentioned partes glabra and input current, make above-mentioned DC link voltage keep certain DC stabilization portion (not shown).
And above-mentioned power suppling part 210 is controlled above-mentioned phase inverter portion according to the control signal that generates from above-mentioned control part 220, and the power supply supplied with to above-mentioned motor 230 of control.At this moment, can comprise the pwm signal that is used to control for the PWM voltage duty of controlling above-mentioned phase inverter portion in the above-mentioned control signal.
And above-mentioned DC stabilization portion is connected between above-mentioned converter portion and the above-mentioned partes glabra, and makes the DC link voltage that outputs to above-mentioned phase inverter portion from above-mentioned partes glabra keep certain.Wherein, above-mentioned DC stabilization portion can be arranged in parallel connection in advance between above-mentioned converter portion and above-mentioned partes glabra, or, form setting that can be independent with external device (ED).Under situation about constituting by externally positioned type DC stabilization portion, only need in general control device, to be provided with other slot (slot) or connector (connecter), in the area of supplying with normal voltage, can need not to connect DC stabilization portion uses, and in low-voltage or the unsettled area of input power supply take place, can connect and use DC stabilization portion.
And, comprise in the above-mentioned DC stabilization portion being used to compensate the switching part (switching) (not shown) that outputs to the DC link voltage of above-mentioned phase inverter portion from above-mentioned partes glabra.Wherein, above-mentioned switching part can be insulated gate bipolar transistor (Insulated Gate Bipolar Transistor:IGBT), or has the element of identical functions with it.And above-mentioned switching part is switched according to detected DC link voltage, and plays the certain effect of voltage maintenance that makes.When above-mentioned DC link voltage is to be used to drive the required reference voltage of above-mentioned washing machine when following, make unlatching (on) cycle of above-mentioned switching part keep longer, to improve input voltage and (for example to keep certain value, 310V), and,, make the unlatching cycle of above-mentioned switching part keep shorter when above-mentioned DC link voltage is reference voltage when above, to reduce input voltage and to keep certain value (for example, 310V).
When the incident of generation, above-mentioned control part 220 is removed PWM OFF signal spacing (or omission), duty ratio value is set at 0 after (or be set at 0% with dutycycle), generation is used for the control signal of dynamic brake, and control the PWM voltage duty of the phase inverter portion that comprises in the above-mentioned power suppling part 210 according to the control signal of above-mentioned generation, to control the speed of above-mentioned motor 230.Wherein, above-mentioned incident can be that operation stop key (not shown) or temporary transient stop key (not shown) are transfused to the situation of (or being pressed), and power supply is closed the situation of (Off), or some in the door of washing machine (door) situation about being unlocked.At this moment, above-mentioned control part 220 can constitute, according to the control signal of above-mentioned generation and directly control the speed of above-mentioned motor 230.
And, above-mentioned control part 220 after carrying out dynamic brake through the predefined time (as an example, in the time of 200ms-300ms), dutycycle is set at predefined first value (as an example, predefined first dutycycle=100%) after, generation is used for the control signal of plugging, and controls the voltage duty of above-mentioned phase inverter portion according to the control signal of above-mentioned generation, to control the speed of above-mentioned motor 230.For example, above-mentioned control part 220 after carrying out dynamic brake through as the 300ms of predefined time the time, under the situation of 8 (bit) computings, with duty ratio value be set at ' 255 ' be full duty ratio value (full duty value) (or, dutycycle=100%) after, generation is used for the control signal of plugging to control the speed of above-mentioned motor 230.
And above-mentioned control part 220 is being carried out under the state of above-mentioned plugging, judges that whether speed by above-mentioned speed test section 240 detected above-mentioned motors 230 is less than predefined a reference value.When the speed of above-mentioned detected motor during less than predefined a reference value, dutycycle is set at predefined second value (as an example, some value among predefined second dutycycle=30%-40%) after, generation is used for the control signal of plugging, and control the voltage duty of above-mentioned phase inverter portion according to the control signal of above-mentioned generation, to control the speed of above-mentioned motor 230.For example, above-mentioned control part 220 in the speed of above-mentioned detected motor less than as the 350rpm of predefined a reference value the time, duty ratio value is set at ' 90 ' after, generate the control signal that is used for plugging, to control the speed of above-mentioned motor 230.Wherein, above-mentioned predefined second value is according to the kind of product and specification and can be set at multiple value by the designer.
And, above-mentioned control part 220 is in carrying out plugging, can be corresponding with the speed of motor in predefined dutycycle, according to speed, to carry out plugging with the corresponding predefined dutycycle control of the speed of above-mentioned detected motor 230 by above-mentioned speed test section 240 detected above-mentioned motors 230.
Above-mentioned speed test section 240 is used for detecting in real time the speed of above-mentioned motor 230, at this, the speed of above-mentioned motor 230 can be carried out computing and infer drawing according to by the detected current of electric/voltage of current/voltage test section (not shown) from above-mentioned control part 220.
As mentioned above, when in the washing/dehydrating of washing machine, detecting brake hard,, generally remove the signal spacing of the 200ms-300ms that PWM OFF signal spacing occupies, can shorten the braking time of motor by removing PWM OFF signal spacing.
And, when plugging, classify according to RPM and to set duty ratio value (or dutycycle), reducing the noise of peak point current and shaft coupling portion, thereby the parts damages that cause owing to overcurrent can be prevented, and the reliability of product can be guaranteed.
And when plugging, the dutycycle of naming a person for a particular job is reduced to certain level when stopping near motor, reducing peak point current, thereby can prevent the parts damages that cause owing to overcurrent, and can guarantee the reliability of product.
Below, with reference to Fig. 1 to Fig. 4, the control method for washing machine among the present invention is described in detail.
Fig. 3 is the flow chart of the control method for washing machine in the first embodiment of the invention.
At first, control part 220 judges whether to be used for the incident of the motor 230 of brake hard washing machine, promptly, above-mentioned control part 220 is judged in washing or dehydration, whether input operation stop key or temporary transient stop key by user's control, whether the power supply of above-mentioned washing machine is closed, and (S110) takes place the door of above-mentioned washing machine incident such as whether be unlocked.
Subsequently, when above-mentioned incident took place, after above-mentioned control part 220 was set at ' 0 ' with duty ratio value, generation was used for first control signal of dynamic brake, and controls the speed (S120) of above-mentioned motor 230 according to first control signal of above-mentioned generation.
Subsequently, above-mentioned control part 220 is after carrying out above-mentioned dynamic brake during through predefined time, after dutycycle is set at predefined first value, generates and be used for second control signal of plugging, and control the speed of above-mentioned motor 230 according to second control signal of above-mentioned generation.
As an example, above-mentioned control part 220 after carrying out above-mentioned dynamic brake through as the 300ms of predefined time the time, dutycycle is set at 100% after, generate second control signal that is used for plugging, with the speed (S130) of controlling above-mentioned motor 230.
Subsequently, above-mentioned control part 220 judges that whether the speed of passing through speed test section 240 detected above-mentioned motors 230 is less than predefined a reference value (S140).
In above-mentioned judged result, when the speed by above-mentioned speed test section 240 detected above-mentioned motors 230 during less than above-mentioned predefined a reference value, after above-mentioned control part 230 is set at predefined second value with above-mentioned dutycycle, generation is used for the 3rd control signal of plugging, and controls the speed of above-mentioned motor 230 according to the 3rd control signal of above-mentioned generation.
As an example, above-mentioned control part 220 in the speed by above-mentioned speed test section 240 detected above-mentioned motors 230 less than as ' 350rpm ' of predefined a reference value the time, after above-mentioned dutycycle is set at predefined ' 35% ', generation is used for the 3rd control signal of plugging, with the speed (S150) of controlling above-mentioned motor 230.
Fig. 4 is the flow chart of the control method of the washing machine in the second embodiment of the invention.
At first, control part 220 judges whether to be used for the incident of the motor 230 of brake hard washing machine, promptly, above-mentioned control part 220 is judged in washing or dehydration, whether input operation stop key or temporary transient stop key by user's control, whether the power supply of above-mentioned washing machine is closed, and (S210) takes place the door of above-mentioned washing machine incident such as whether be unlocked.
Subsequently, when above-mentioned incident took place, after above-mentioned control part 220 was set at ' 0 ' with duty ratio value, generation was used for first control signal of dynamic brake, and controls the speed (S220) of above-mentioned motor 230 according to first control signal of above-mentioned generation.
Subsequently, above-mentioned control part 220 is after carrying out above-mentioned dynamic brake during through predefined time, after dutycycle is set at predefined first value, generates and be used for second control signal of plugging, and control the speed of above-mentioned motor 230 according to second control signal of above-mentioned generation.
As an example, above-mentioned control part 220 after carrying out above-mentioned dynamic brake through as the 300ms of predefined time the time, dutycycle is set at 100% after, generate second control signal that is used for plugging, with the speed (S230) of controlling above-mentioned motor 230.
Subsequently, above-mentioned control part 220 corresponding with the speed of motor in predefined dutycycle, according to speed by speed test section 240 detected above-mentioned motors 230, utilize the corresponding dutycycle control corresponding to generate and be used for the 3rd control signal of plugging, and control the speed of above-mentioned motor 230 according to the 3rd control signal of above-mentioned generation with the speed of above-mentioned detected motor.
As an example, when the dutycycle following setting corresponding with the speed of above-mentioned motor, promptly, be set at, dutycycle under the situation of 800rpm-1000rpm=100%, dutycycle under the situation of 600rpm-800rpm=75%, dutycycle under the situation of 400rpm-600rpm=50%, under the state of dutycycle=25% under the situation below the 400rpm, when the speed by above-mentioned speed test section 240 detected above-mentioned motors is 850rpm, above-mentioned control part 220 will be controlled to carry out plugging as 100% of the dutycycle corresponding with the speed (850rpm) of above-mentioned motor.Subsequently, when the speed of above-mentioned detected motor is 610rpm, above-mentioned control part 220 will be controlled to carry out plugging as 75% of the dutycycle corresponding with the speed (610rpm) of above-mentioned motor.Wherein, with the velocity interval of above-mentioned motor and the corresponding predefined dutycycle of speed of above-mentioned motor, it can be by various the setting of designer's design (S240).
As mentioned above, in plugging, will make dutycycle be reduced to certain level gradually according to the speed of motor, thereby reduce peak point current, thereby can prevent the parts damages that cause owing to overcurrent, and can guarantee the reliability of product.
The present invention is illustrated according to embodiment, should be appreciated that the foregoing description does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (10)
1. the control method of a washing machine, it is characterized in that, may further comprise the steps: during some incidents in the situation that operation stops or temporary transient stop key is transfused to pent situation of situation, power supply or door be unlocked takes place, duty ratio value is set at the step that dynamic brake is carried out in 0 back; After carrying out above-mentioned dynamic brake, during through predefined time, duty ratio value is set at the step of predefined first value back execution plugging; When the speed of detected motor during, above-mentioned duty ratio value is set at the step that plugging is carried out in predefined second value back less than a reference value.
2. the control method of washing machine according to claim 1, it is characterized in that: above-mentioned predefined first value is 100%, above-mentioned predefined second value is the some values in 30% to 40%.
3. the control method of washing machine according to claim 1, it is characterized in that: the above-mentioned predefined time is the some values among the 200ms to 300ms.
4. the control method of washing machine according to claim 1, it is characterized in that: the said reference value is the some values among the 300rpm to 400rpm.
5. the control device of a washing machine is characterized in that, comprises with lower member: the speed test section that detects the speed of motor with pre-set time interval; During some incidents in the situation that operation stops or temporary transient stop key is transfused to pent situation of situation, power supply or door be unlocked takes place, according to the speed setting dutycycle of above-mentioned detected motor, and generate the control part of the control signal be used to carry out dynamic brake or plugging.
6. the control device of washing machine according to claim 5 is characterized in that: when above-mentioned incident takes place, after above-mentioned control part is set at 0 with duty ratio value, generate the control signal and the output that are used for dynamic brake.
7. the control device of washing machine according to claim 6, it is characterized in that: above-mentioned control part is after carrying out above-mentioned dynamic brake during through predefined time, after dutycycle is set at predefined first value, generate the control signal and the output that are used for plugging.
8. the control device of washing machine according to claim 7, it is characterized in that: when the speed of above-mentioned detected motor during less than a reference value, after above-mentioned control part is set at predefined second value with above-mentioned dutycycle, generate the control signal and the output that are used for plugging.
9. the control device of washing machine according to claim 7, it is characterized in that: above-mentioned control part generates the control signal and the output that are used for carrying out with the predefined dutycycle corresponding with the speed of above-mentioned detected motor plugging according to the speed of above-mentioned detected motor.
10. the control method of a washing machine, the present invention is characterized in that, may further comprise the steps: during some incidents in the situation that operation stops or temporary transient stop key is transfused to pent situation of situation, power supply or door be unlocked takes place, duty ratio value is set at the step that dynamic brake is carried out in 0 back; After carrying out above-mentioned dynamic brake, during through predefined time, duty ratio value is set at the step of predefined first value back execution plugging; According to the speed of detected motor, carry out the step of plugging with the predefined dutycycle corresponding with the speed of above-mentioned detected motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2009-0103755 | 2009-10-29 | ||
| KR1020090103755A KR101649632B1 (en) | 2009-10-29 | 2009-10-29 | Controlling apparatus of washing machine and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101824730A CN101824730A (en) | 2010-09-08 |
| CN101824730B true CN101824730B (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101744699A Expired - Fee Related CN101824730B (en) | 2009-10-29 | 2010-04-30 | Control method and control device of washing machine |
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| KR (1) | KR101649632B1 (en) |
| CN (1) | CN101824730B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102148200B1 (en) * | 2013-09-04 | 2020-08-27 | 삼성전자주식회사 | Washing apparatus and controlling method thereof |
| KR20190063253A (en) * | 2017-11-29 | 2019-06-07 | 엘지전자 주식회사 | Motor driving apparatus and home appliance including the same |
| CN114164608B (en) * | 2021-12-13 | 2022-09-30 | 珠海格力电器股份有限公司 | Washing machine dehydration method, device, storage medium and washing machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001137596A (en) * | 1999-11-12 | 2001-05-22 | Hitachi Ltd | Electric washing machine |
| KR100662299B1 (en) * | 2002-11-26 | 2007-01-02 | 엘지전자 주식회사 | method for braking motor in dehydration cycle of washing machine |
| JP2004344463A (en) * | 2003-05-23 | 2004-12-09 | Sanyo Electric Co Ltd | Drum-type washing machine |
| CN2866560Y (en) * | 2005-12-13 | 2007-02-07 | 黄光荣 | Dewatering braking device |
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2009
- 2009-10-29 KR KR1020090103755A patent/KR101649632B1/en active IP Right Grant
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2010
- 2010-04-30 CN CN2010101744699A patent/CN101824730B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110047007A (en) | 2011-05-06 |
| CN101824730A (en) | 2010-09-08 |
| KR101649632B1 (en) | 2016-08-19 |
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