CN102953255B - Washing machine and dewatering control method and system of washing machine - Google Patents
Washing machine and dewatering control method and system of washing machine Download PDFInfo
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- CN102953255B CN102953255B CN201210417812.7A CN201210417812A CN102953255B CN 102953255 B CN102953255 B CN 102953255B CN 201210417812 A CN201210417812 A CN 201210417812A CN 102953255 B CN102953255 B CN 102953255B
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Abstract
The invention discloses a dewatering control method of a washing machine. The method comprises the following steps of: S1, controlling the washing machine to dewater; S2, detecting the load of a washing machine motor, and judging whether a change value of the load of the washing machine motor in the preset time is less than a preset threshold value or not; and S3, if the change value is less than the preset threshold value, judging that the washing machine finishes dewatering and controlling the washing machine to stop dewatering. By the control method, a special dewatering effect can be realized; the dewatering effect is improved; the energy loss is reduced; and dewatered clothes are not damaged. The invention further discloses a dewatering control system of the washing machine and a washing machine with the dewatering control system.
Description
Technical field
The present invention relates to washing machine technology field, particularly a kind of dewatering control method for washing machine and system and a kind of washing machine with this laundry machine dehydration control system.
Background technology
In the design of the laundry machine dehydration of existing impeller and drum, no matter be common electric machine, or variable-frequency motor, dewatering time is all program Solidification, or chooses in program curing.But the efficiency of clothing in dehydration of different loads, unlike material, different initial aqueous rate is different, and therefore optimum dewatering time is also different.
Wherein, dewatering time and clothing material have much relations, and such as general cotton clothes required time is longer, and chemical fibre class required time is shorter.Therefore, if it is too short to arrange dewatering time, clothes is relatively not de-dry; If the dewatering time arranged is long, then clothes is in fact relatively de-dry still still in dehydration, causes the waste of resource, also has damage simultaneously to clothes.So the program of solidification is not the solution of best laundry machine dehydration.
The shortcoming that prior art exists is that dewatering time is all program Solidification, and the time is too short, and clothing is de-not to be done, and more overlong time, then consume the energy, also have damage to clothing.
Summary of the invention
Object of the present invention is intended to solve one of above-mentioned technological deficiency at least to a certain extent.
For this reason, first object of the present invention is to propose a kind of dewatering control method for washing machine, and the method can improve dehydrating effect in control laundry machine dehydration process, reduces energy loss.
Second object of the present invention is to propose a kind of laundry machine dehydration control system.3rd object of the present invention is also to propose a kind of washing machine.
For achieving the above object, the dewatering control method for washing machine of the embodiment proposition of first aspect present invention, comprises the steps:
S1, controls washing machine and dewaters;
S2, detects the load of described motor for washer, and judges whether the changing value of the load of described motor for washer in Preset Time is less than predetermined threshold value; And
S3, if judge that described changing value is less than described predetermined threshold value, then judges that described washing machine completes to dewater and control described washing machine and stops dehydration.
According to the dewatering control method for washing machine of the embodiment of the present invention, utilize the intellectual determination to dewatering state, special dehydrating effect can be realized, thus can realize carrying out intelligence dehydration to clothing moisture content in various degree, improve dehydrating effect, reduce energy loss, ensure that the clothing carrying out dewatering is injury-free.In addition, this control method is simple and reliable.
In one embodiment of the invention, described S2 comprises the steps: to detect the load of described motor for washer within multiple time period respectively further, and wherein, described Preset Time comprises described multiple time period; Obtain the difference of the load in adjacent two time periods respectively; And judge whether described difference is less than described predetermined threshold value.
Further, described S3 comprises the steps: if judge that the described difference of continuous preset times is all less than described predetermined threshold value further, then judge that described washing machine completes to dewater and control described washing machine and stop dehydration.
Judged by continuous several times, judgement precision can be improved, ensure the effect of dehydration.
In an example of the present invention, described preset times is 3-5 time.
In one embodiment of the invention, described load is obtained by the Current calculation detecting described motor.
Preferably, in another embodiment of the present invention, described load is calculated by the instantaneous power detecting described motor and obtains.
Adopt and detect the instantaneous power of motor and judge, judge that precision is high, and do not need additionally to increase sensor, cost is low, reliability is high, noise immunity is good, be subject to voltage, load, dewatering speed factor impact very little.
In an embodiment of the present invention, the motor of described washing machine is variable-frequency motor.
For achieving the above object, the embodiment of second aspect present invention proposes a kind of laundry machine dehydration control system, and it comprises: detection module, for detecting the load of motor for washer; Control module, dewater for controlling described washing machine, and judge whether the changing value of the load of described motor for washer in Preset Time is less than predetermined threshold value, and when judging that described changing value is less than described predetermined threshold value, judging that described washing machine completes to dewater and control described washing machine and stopping dehydration.
According to the laundry machine dehydration control system of the embodiment of the present invention, utilize the intellectual determination to dewatering state, special dehydrating effect can be realized, thus can realize carrying out intelligence dehydration to clothing moisture content in various degree, and then realize intelligent dehydration, improve dehydrating effect, decrease energy loss, and ensure that the clothing carrying out dewatering is injury-free, meet the living needs of people.
In one embodiment of the invention, described detection module is also for detecting the load of described motor for washer within multiple time period respectively, and wherein, described Preset Time comprises described multiple time period.
Further, described control module also for obtaining the difference of the load in adjacent two time periods respectively, and when judging that the described difference of continuous preset times is less than described predetermined threshold value, judging that described washing machine completes to dewater and control described washing machine and stopping dehydration.
Judged by continuous several times, judgement precision can be improved, ensure the effect of dehydration.
In an example of the present invention, described preset times is 3-5 time.
In one embodiment of the invention, described load is obtained by the Current calculation detecting described motor.
Preferably, in another embodiment of the present invention, described load is calculated by the instantaneous power detecting described motor and obtains.
Adopt and detect the instantaneous power of motor and judge, judge that precision is high, and do not need additionally to increase sensor, cost is low, reliability is high, noise immunity is good, be subject to voltage, load, dewatering speed factor impact very little.
In an embodiment of the present invention, the motor of described washing machine is variable-frequency motor.
For achieving the above object, the embodiment of third aspect present invention also proposed a kind of washing machine, comprises above-mentioned laundry machine dehydration control system.
According to the washing machine of the embodiment of the present invention, intelligence dehydration can be carried out, improve dehydrating effect, reduce energy loss, and ensure that the clothing carrying out dewatering is injury-free, meet the living needs of people.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the flow chart of the dewatering control method for washing machine according to the embodiment of the present invention;
Fig. 2 is the further flow chart of dewatering control method for washing machine according to an embodiment of the invention;
Fig. 3 is the schematic diagram of repeated detection motor for washer electric current or instantaneous power in the dewatering control method for washing machine according to the present invention's example;
Fig. 4 is the particular flow sheet of the dewatering control method for washing machine according to the present invention's preferred exemplary;
Fig. 5 is each Kg cloth current of electric feedback data curve map when middling speed is dewatered in one embodiment of the present of invention;
Fig. 6 is each Kg cloth current of electric feedback data curve map when high speed dewatering in one embodiment of the present of invention; And
Fig. 7 is the block diagram of the laundry machine dehydration control system according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
The dewatering control method for washing machine and system that propose according to the embodiment of the present invention and the washing machine with this laundry machine dehydration control system are described with reference to the accompanying drawings.
Fig. 1 is the flow chart of the dewatering control method for washing machine of embodiment proposition according to a first aspect of the present invention.As shown in Figure 1, this dewatering control method for washing machine comprises the steps:
S1, controls washing machine and dewaters.
First, user, by the operation interface input control order of washing machine, controls washing machine and enters intelligent dehydration procedure, namely controls washing machine and dewaters.
S2, detects the load of motor for washer, and judges whether the changing value of the load of motor for washer in Preset Time is less than predetermined threshold value.
In an embodiment of the present invention, the motor of washing machine is variable-frequency motor, because the change of the rotating speed of variable-frequency motor is very rapid, at this moment needs the load detecting motor by circuit just can accomplish to judge that whether de-the clothes in washing machine is dry more accurately.
In one embodiment of the invention, the load of motor for washer can be obtained by the Current calculation detecting motor, namely directly can read the electric current of the supply module of motor by circuit thus know the loading condition of current motor very intuitively.Wherein, predetermined threshold value can be 0.02A.
Preferably, in another embodiment of the present invention, the load of motor for washer is calculated by the instantaneous power detecting motor and obtains.Concerning variable-frequency motor, the impact being easily subject to the factors such as voltage swing and voltage pulsation and load are how many, dewatering speed height is judged with electric current, and differentiate by the instantaneous power of motor can relatively accurately and easily, namely the voltage value on power source bus is first gathered, gather the current value on power source bus again, then can obtain the instantaneous power value of motor.Wherein, predetermined threshold value can be 10W.
S3, if judge that changing value is less than predetermined threshold value, then judges that washing machine completes to dewater and control washing machine and stops dehydration.
That is, the dewatering control method for washing machine that the embodiment of the present invention proposes is exactly utilize clothes weight in dehydration progressively to tend to stable feature, by detecting electric current or the instantaneous power of motor for washer, and carry out the comparison of front and back set time electric current or instantaneous power, whether stop dehydration procedure according to comparative result automatic decision, clothes dewatering can be prevented excessive.
Further, in one embodiment of the invention, as shown in Figure 2, above-mentioned dewatering control method for washing machine comprises the steps:
S201, controls washing machine and dewaters.
S202, detect the load of motor for washer within multiple time period respectively, wherein, Preset Time comprises multiple time period.That is Preset Time is carried out decile, be divided into multiple time period, be understandable that, multiple time period refers to two or more time period.
S203, obtains the difference of the load in adjacent two time periods respectively.
S204, judges whether difference is less than predetermined threshold value.If so, then next step S205 is performed; If not, then return step S201, control washing machine and continue dehydration.
S205, proceeds to judge.
S206, judges that the difference of continuous preset times is all less than predetermined threshold value, thus judge washing machine complete dewater and control washing machine stop dehydration.In an example of the present invention, preset times can be 3-5 time.
In an embodiment of the present invention, carry out in the process of dewatering at washing machine, along with the moisture of the clothing in the disappearance washing machine of time constantly reduces, the weight of clothes tends towards stability, so washer weight trend is stable, then the load trend of washing machine is stable, and also just trend is stable for the power of electrical consumption and electric current.Therefore, by detecting the load such as instantaneous power or electric current of the motor for washer in multiple time period, and the difference of adjacent two load detecting value is judged, wherein, because the load of motor for washer tends towards stability, so the difference of adjacent two load detecting value diminishes gradually and tends towards stability.When the difference of continuous preset times is all less than predetermined threshold value, then judge that washing machine completes to dewater and control washing machine and stop dehydration.
Judged by the difference of continuous several times to the load of adjacent motor for washer, judgement precision can be improved, ensure the effect of dehydration.
Particularly, in an example of the present invention, as shown in Figure 3, Preset Time is divided into n time period T
1, T
2, T
3t
n, the electric current of load such as motor or the instantaneous power of motor that detect this n time period motor for washer are respectively I
1/ P
1, I
2/ P
2, I
3/ P
3... I
n/ P
n, by formula △ I=I
n-1-I
nor △ P=P
n-1-P
n, difference △ I or the △ P of the load of two adjacent time periods can be obtained, wherein, n be greater than 1 integer.In this example, when n is 10, Preset Time is 100 seconds, and so each time period is 10 seconds, thus can obtain the load of continuous 10 motor for washer.When the judge continuous preset times difference △ I of such as 4 times be all less than predetermined threshold value such as 0.02 time, represent that electric current and the power of electrical consumption are stablized, can infer that the weight of clothing is also stablized, clothing is de-dry, now just dehydration procedure can be completed, namely washing machine completes dehydration, and controls washing machine stopping dehydration.Or when the judge continuous preset times difference △ P of such as 4 times be all less than predetermined threshold value such as 10 time, represent that the power of electrical consumption is stablized, can infer that the weight of clothing is also stablized, can stop having dewatered.
Preferably, in an example of the present invention, as shown in Figure 4, for adopting the instantaneous power detecting motor to carry out the dewatering control method for washing machine flow chart judged.This dewatering control method for washing machine specifically comprises the following steps:
S401, controls washing machine and dewaters.
S402, extends L second.That is, washing machine starts control and enters next step after carrying out dehydration L second.Wherein, L presets according to actual conditions second, such as, can be 60 seconds.
S403, reads the voltage value U on power source bus
dC.
S404, reads current value I on power source bus
dC.
S405, calculates current power P=U
dC× I
dC.
S406, judges whether △ P is less than 10W.If so, then step S408 is performed; If not, then step S407 is performed.
S407, resets the summary counter of washing machine internal, and returns step S402, continues to control washing machine and dewaters.
S408, the summary counter of washing machine internal adds 1.
S409, judges whether summary counter is greater than 4.If so, then step S410 is performed; If not, then return step S402, continue to control washing machine and dewater.
S410, laundry machine dehydration completes, and stops dehydration.
Concerning variable-frequency motor, adopt and detect the instantaneous power of motor and judge, judge that precision is high, and do not need additionally to increase sensor, cost is low, reliability is high, noise immunity is good, be subject to voltage, load, dewatering speed factor impact very little.
And adopt and detect the impact that the electric current of motor judges easily to be subject to the factors such as voltage swing and voltage pulsation and load are how many, dewatering speed height, wherein, current feedback data curve is as shown in Figure 5 and Figure 6 when middling speed and high speed dewatering for the cloth of Different Weight.
In fig. 5 and fig., abscissa is time (unit is second), and ordinate is instantaneous current value (unit is 0.1A).As shown in Figure 6, under identical voltage, although load is different, the electric current finally settled out is also different, but the fluctuation of electric current is in certain scope, therefore with the electric current of motor for judge be when identical voltage and the clothes degree of balance more satisfactory carry out.If the voltage adopted is different or voltage pulsation is very large, the electric current of so corresponding motor will fluctuate very large, and the pre-set threshold value carrying out like this differentiating is very large with regard to difference, is difficult to determine, in addition along with the increase of load, the degree of balance of clothes generally can reduce gradually, as shown in Figure 5, even under identical voltage, along with the increase of load, the fluctuation of electric current increases thereupon, adopts the electric current of motor to judge there will be very large error, the precision that impact judges.Therefore, comparison diagram 5 and Fig. 6, can find out, adopts the electric current of motor to judge to be subject to the impact of the factor such as weight of dewatering speed, voltage pulsation and clothing, reduce judgement precision.
According to the dewatering control method for washing machine of the embodiment of the present invention, utilize the intellectual determination to dewatering state, special dehydrating effect can be realized, thus can realize carrying out intelligence dehydration to clothing moisture content in various degree, improve dehydrating effect, reduce energy loss, ensure that the clothing carrying out dewatering is injury-free.In addition, this control method judges that precision is high, simple and reliable.
As shown in Figure 7, the laundry machine dehydration control system that second aspect present invention embodiment proposes comprises detection module 10 and control module 20.
Wherein, detection module 10 is for detecting the load of motor for washer 30.Control module 20 is dewatered for controlling washing machine, and judge whether the changing value of the load of motor for washer 30 in Preset Time is less than predetermined threshold value, and when judging that this changing value is less than predetermined threshold value, thus judge washing machine complete dewater and control washing machine stop dehydration.
That is, the laundry machine dehydration control system that the embodiment of the present invention proposes is exactly utilize clothes weight in dehydration progressively to tend to stable feature, the load of motor for washer 30 is detected by detection module 10, then control module 20 carries out the comparison of front and back set time load, and whether stop dehydration procedure according to comparative result automatic decision, clothes dewatering can be prevented excessive.
In one embodiment of the invention, detection module 10 is also for detecting the load of motor for washer 30 within multiple time period respectively, and wherein, Preset Time comprises multiple time period.And control module 20 is also for obtaining the difference of the load in adjacent two time periods respectively, and when judging that this difference of continuous preset times is less than predetermined threshold value, thus judge that washing machine completes dehydration, and control washing machine stopping dehydration.In an example of the present invention, preset times can 3-5 time.
In an embodiment of the present invention, the motor of washing machine is variable-frequency motor, because the change of the rotating speed of variable-frequency motor is very rapid, at this moment needs the load detecting motor by detection module 10 just can accomplish to judge that whether de-the clothes in washing machine is dry more accurately.
In one embodiment of the invention, the load of motor for washer 30 can be obtained by the Current calculation detecting motor 30, namely directly can read the electric current of the supply module of motor 30 by detection module 10 such as testing circuit, thus the loading condition of current motor can be known clearly.Wherein, predetermined threshold value can be 0.02A.
Preferably, in another embodiment of the present invention, the load of motor for washer 30 can calculate acquisition by the instantaneous power detecting motor 30.Concerning variable-frequency motor, the impact being easily subject to the factors such as voltage swing and voltage pulsation and load are how many, dewatering speed height is judged with electric current, and differentiate by the instantaneous power of motor can relatively accurately and easily, namely detection module 10 such as testing circuit first gathers the voltage value on power source bus, gather the current value on power source bus again, then can obtain the instantaneous power value of motor 30.Wherein, predetermined threshold value can be 10W.
Particularly, in an example of the present invention, as shown in Figure 3, Preset Time is divided into n time period T
1, T
2, T
3t
n, detection module 10 detects the electric current of load such as motor 30 of this n time period motor for washer 30 respectively or the instantaneous power of motor 30 is I
1/ P
1, I
2/ P
2, I
3/ P
3... I
n/ P
n, by formula △ I=I
n-1-I
nor △ P=P
n-1-P
n, control module 20 can obtain difference △ I or the △ P of the load of two adjacent time periods, wherein, n be greater than 1 integer.In this example, when n is 10, Preset Time is 100 seconds, and so each time period is 10 seconds, thus can obtain the load of continuous 10 motor for washer.When control module 20 the judge continuous preset times difference △ I of such as 4 times be all less than predetermined threshold value such as 0.02 time, represent that electric current and the power of electrical consumption are stablized, can infer that the weight of clothing is also stablized, clothing is de-dry, now just dehydration procedure can be completed, namely washing machine completes dehydration, and controls washing machine stopping dehydration.Or when control module 20 the judge continuous preset times difference △ P of such as 4 times be all less than predetermined threshold value such as 10 time, represent that the power of electrical consumption is stablized, can infer that the weight of clothing is also stablized, can stop having dewatered.
That is, in an embodiment of the present invention, carry out in the process of dewatering in the above-mentioned laundry machine dehydration control system of control, along with the moisture of the clothing in the disappearance washing machine of time constantly reduces, the weight of clothes tends towards stability, then the load trend of washing machine is stable, and also just trend is stable for the power that motor 30 consumes and electric current.Therefore, the load such as instantaneous power or electric current of the motor for washer 30 in multiple time period is detected respectively by detection module 10, and respectively the difference of adjacent two load detecting value is judged by control module 20, wherein, because the load of motor for washer 30 tends towards stability, so the difference of adjacent two Rotating speed measring values diminishes gradually and tends towards stability.When the difference of continuous preset times such as 4 times is all less than predetermined threshold value such as 0.02 or 10, control module 20 judges that washing machine completes to dewater and control washing machine and stops dehydration.
Wherein, in one embodiment of the invention, control module can be the MCU(Micro Control Unit of washing machine, micro-control unit).Preferably, in an example of the present invention, the voltage and current on every 100 milliseconds of reading power source bus once, and carries out the instantaneous power value calculating motor for washer, and within every 10 seconds, detects the power of a motor and be kept in MCU, is designated as P
1, P
2, P
3p
n.Adjacent twice power is made difference to obtain △ P, and compared by △ P and predetermined threshold value such as 10W, if △ P is less than 10W, the inside summary counter of control MCU adds 1, if △ P is not less than 10W, empties summary counter.When MCU judges whether summary counter reaches a fixed value 4, namely judges that all whether continuous 4 △ P are less than 10W.Just illustrate that dehydration is de-dry if reached, otherwise repeat said process.
In an embodiment of the present invention, concerning variable-frequency motor, the instantaneous power of motor is adopted to judge, judge that precision is high, and do not need additionally to increase sensor, cost is low, reliability is high, noise immunity is good, be subject to voltage, load, dewatering speed factor impact very little.
According to the laundry machine dehydration control system of the embodiment of the present invention, utilize the intellectual determination to dewatering state, special dehydrating effect can be realized, thus can realize carrying out intelligence dehydration to clothing moisture content in various degree, and then realize intelligent dehydration, improve dehydrating effect, decrease energy loss, and ensure that the clothing carrying out dewatering is injury-free, meet the living needs of people.In addition, adopt the instantaneous power of motor to judge, judge that precision is high, and do not need additionally to increase sensor, cost is low, reliability is high, noise immunity is good, be subject to voltage, load, dewatering speed factor impact very little.
In addition, the embodiment of third aspect present invention also proposed a kind of washing machine, and it comprises above-mentioned laundry machine dehydration control system.
According to the washing machine of the embodiment of the present invention, intelligence dehydration can be carried out, improve dehydrating effect, reduce energy loss, and ensure that the clothing carrying out dewatering is injury-free, meet the living needs of people.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (15)
1. a dewatering control method for washing machine, is characterized in that, comprises the steps:
S1, controls washing machine and dewaters;
S2, detects the load of described motor for washer, and judges whether the changing value of the load of described motor for washer in Preset Time is less than predetermined threshold value; And
S3, if judge that described changing value is less than described predetermined threshold value, then judges that described washing machine completes to dewater and control described washing machine and stops dehydration.
2. dewatering control method for washing machine as claimed in claim 1, it is characterized in that, described S2 comprises the steps: further
Detect the load of described motor for washer within multiple time period respectively, wherein, described Preset Time comprises described multiple time period;
Obtain the difference of the load in adjacent two time periods respectively; And
Judge whether described difference is less than described predetermined threshold value.
3. dewatering control method for washing machine as claimed in claim 2, it is characterized in that, described S3 comprises the steps: further
If judge that the described difference of continuous preset times is all less than described predetermined threshold value, then judge that described washing machine completes to dewater and control described washing machine and stop dehydration.
4. dewatering control method for washing machine as claimed in claim 3, it is characterized in that, described preset times is 3-5 time.
5. the dewatering control method for washing machine as described in any one of claim 1-4, is characterized in that, described load is obtained by the Current calculation detecting described motor.
6. the dewatering control method for washing machine as described in any one of claim 1-4, is characterized in that, described load is calculated by the instantaneous power detecting described motor and obtains.
7. the dewatering control method for washing machine as described in any one of claim 1-4, is characterized in that, described motor for washer is variable-frequency motor.
8. a laundry machine dehydration control system, is characterized in that, comprising:
Detection module, for detecting the load of motor for washer;
Control module, dewater for controlling described washing machine, and judge whether the changing value of the load of described motor for washer in Preset Time is less than predetermined threshold value, and when judging that described changing value is less than described predetermined threshold value, judging that described washing machine completes to dewater and control described washing machine and stopping dehydration.
9. laundry machine dehydration control system as claimed in claim 8, it is characterized in that, described detection module is also for detecting the load of described motor for washer within multiple time period respectively, and wherein, described Preset Time comprises described multiple time period.
10. laundry machine dehydration control system as claimed in claim 9, it is characterized in that, described control module is also for obtaining the difference of the load in adjacent two time periods respectively, and when judging that the described difference of continuous preset times is less than described predetermined threshold value, judging that described washing machine completes to dewater and control described washing machine and stopping dehydration.
11. laundry machine dehydration control systems as claimed in claim 10, it is characterized in that, described preset times is 3-5 time.
12. laundry machine dehydration control systems as claimed in claim 8, is characterized in that, described load is obtained by the Current calculation detecting described motor.
13. laundry machine dehydration control systems as claimed in claim 8, is characterized in that, described load is calculated by the instantaneous power detecting described motor and obtains.
14. laundry machine dehydration control systems as claimed in claim 8, is characterized in that, the motor of described washing machine is variable-frequency motor.
15. 1 kinds of washing machines, is characterized in that, comprise the laundry machine dehydration control system as described in any one of claim 8-14.
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| CN105316895B (en) * | 2014-07-31 | 2020-06-19 | 青岛海尔洗衣机有限公司 | Washing machine control method and washing machine |
| CN107447474B (en) * | 2017-08-02 | 2019-08-06 | 珠海格力电器股份有限公司 | Drying control method, device, drying machine, storage medium and processor |
| CN107255565B (en) * | 2017-08-07 | 2019-05-31 | 珠海格力电器股份有限公司 | The detection method and detection device that washer belt disk loosens |
| CN107558101B (en) * | 2017-09-30 | 2018-08-31 | 深圳和而泰小家电智能科技有限公司 | A kind of dehydration controlling method, dehydration control apparatus and washing machine |
| CN109699697B (en) * | 2017-10-25 | 2021-04-27 | 广东美的生活电器制造有限公司 | Control method and device of noodle maker, noodle maker and storage medium |
| CN109820462B (en) * | 2019-03-28 | 2021-06-11 | 佛山市百斯特电器科技有限公司 | Method for controlling motor and dish-washing machine |
| CN113550113B (en) * | 2021-07-29 | 2022-07-26 | 珠海格力电器股份有限公司 | Washing machine dehydration control method and washing machine |
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