CN101135105B - Clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine - Google Patents
Clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine Download PDFInfo
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- CN101135105B CN101135105B CN2006101120932A CN200610112093A CN101135105B CN 101135105 B CN101135105 B CN 101135105B CN 2006101120932 A CN2006101120932 A CN 2006101120932A CN 200610112093 A CN200610112093 A CN 200610112093A CN 101135105 B CN101135105 B CN 101135105B
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Abstract
The present invention discloses fuzzy clothing amount measuring process for DC frequency varying wavy wheel washer. The process includes the following steps: 1. driving the motor to rotate in both front and reverse directions in the set motor on/off time ratio in washing state and detecting the first pulse number within the first set time; 2. determining the clothing amount range based on the first pulse number and the first check list, and ending if the measured amount is smaller than the set one, or else going on the next step; 3. detecting the second pulse number within the second set time while driving the motor with constant voltage in the dewatering state; 4. detecting the third pulse number within the third set time after stopping the drive motor; and 5. determining the clothing amount range corresponding to the sum of the second pulse number and the third pulse number based on the second check list. The present invention determine the clothing amount range in relatively high accuracy.
Description
Technical field
The present invention relates to a kind of clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine.
Background technology
Usually in the application of using motor as power, need measure the size of load in the time of many.For example in household electrical appliances were used, washing machine need be how many next fuzzy determine water consumption, heat time heating time, drying times etc. of clothing according to the load size.
The fuzzy processing method that multiple clothing amount is arranged in the washing machine field at present.A kind of is remanent magnetism electricity generating principle fuzzy measurement clothing amount when utilizing AC induction motor to stop to drive; Be the characteristic of utilizing the speed feedback of direct current generator in addition, drive the method fuzzy measurement clothing amount of obtaining the motor actual speed by constant voltage; And the method fuzzy measurement clothing amount etc. of utilizing the alternating current generator actual speed that speed feedback is arranged.But said method has a bigger problem in actual applications.Promptly, detect the concrete scope of the clothing amount that is difficult to distinguish by said method when the half of tested clothing amount above the washing machine nominal capacity.Main cause is a half that surpasses the washing machine nominal capacity when tested clothing amount, and the state of cloth amount becomes very big to the influence that detects, and makes that like this result's change of measuring is very big, and the clothing amount what can't clearly be distinguished.Can only carry out differentiation substantially general this moment, and according to handling with regard to high principle.So just may cause the waste of actual used water because of the mistake of judging, perhaps prolong wash time, cause the waste of the energy.
Application number is 02112995.9, and denomination of invention discloses a kind of cloth quantity measuring method of washing machine for the Chinese invention patent of " detection method of cloth quality and quantity of fuzzily controlled industrial washing machine ".The detection method of the described cloth quality and quantity of fuzzily controlled industrial washing machine of this patent is characterized in that: comprise the steps: that mainly a, central processing unit obtain and store initial water place value H1 in advance; Initial water place value H1 is meant: when in the laundry wheel during no any washing clothes, add the water level value that is presented behind the water yield G that sets in laundry wheel; B, after putting into washing clothes in the laundry wheel, add the water yield G that sets in the laundry wheel, central processing unit records the water level value H2 of this moment by level sensor, and calculates water-head S1=H2-H1; C, make the positive and negative rotation certain hour of laundry wheel then, washing clothes is fully soaked into by water; The rollers running of waiting to do washing steadily back cuts off motor power, begins to detect the umber of pulse M relevant with the inertia number of revolutions of laundry wheel by pulse-detecting circuit simultaneously, stops operating fully up to laundry wheel, obtains first umber of pulse M1; Behind water and clothing calmness in the laundry wheel, central processing unit records the water level value H3 of this moment by level sensor, and calculates water-head S2=H3-H1; D, again the water in the laundry wheel is drained, after having arranged water, starter motor once more, laundry wheel is normally rotated, treat the steadily power supply of back cut-out motor of its running, begin to detect the umber of pulse M relevant by pulse-detecting circuit simultaneously, stop operating fully, obtain second umber of pulse M2 up to laundry wheel with the inertia number of revolutions of laundry wheel; After e, central processing unit obtain above-mentioned four parameter S 1, S2, M1 and M2,, infer the value range of cloth matter and cloth amount again according to the functional relation that is stored between four parameter S 1, S2, M1 and M2 in the fuzzy rule base, above-mentioned and cloth matter, the cloth amount.Though this patent is determined the clothing amount by detecting the certain hour umber of pulse, also must detect equivalent water level and just can judge the clothing amount.And work as tested clothing amount above washing machine nominal capacity one half, can't obtain clothing weight range accurately.
Therefore, the problem that need solve of the present invention at present is how accurately to determine the concrete scope of tested clothing amount in the washing machine.
Summary of the invention
The purpose of this invention is to provide a kind of clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine, be used for more accurately determining the concrete scope of the tested clothing amount of washing machine.
Specifically, the invention provides a kind of clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine, may further comprise the steps:
1) be recorded under the washing machine washing state, change according to predetermined motor and stop time ratio, the positive and negative rotation of drive motors detects first umber of pulse that obtains in first scheduled time;
2) determine the clothing weight range according to first umber of pulse according to first table of comparisons; Finish less than predetermined clothing amount quantity; Greater than predetermined clothing amount quantity execution in step 3 then;
3) detection is in second umber of pulse of dewatering state with second scheduled time of constant voltage drive motors work at washing machine;
4) detect the 3rd umber of pulse that drive motors stops the 3rd scheduled time of back;
5) determine the clothing weight range that second umber of pulse is corresponding with the 3rd umber of pulse sum according to second table of comparisons.
Optimal way, described step 3) is specially: detection is in dewatering state at washing machine, with second umber of pulse of second scheduled time of constant voltage drive motors work; After finishing, second scheduled time stops drive motors simultaneously.
Described motor commentaries on classics stops time ratio and was specially 3: 10 to 3: 3.5; Described first scheduled time is that No. 4 to 8 motors commentaries on classics stop the used time.
Optimal way, described step 3) is specially: open clutch coupling of washing machine, washing machine inner tub and impeller rotate in the same way, detect to be in dewatering state at washing machine, with second umber of pulse of second scheduled time of constant voltage drive motors work.
Described constant voltage is specially 30% to 60% motor rated voltage.
Described second scheduled time was specially 3 to 10 seconds.
Described the 3rd scheduled time was specially 3 to 10 seconds.
Optimal way, described the 3rd scheduled time equals described second scheduled time.
Described first table of comparisons and second table of comparisons are drawn according to pretest.
Predetermined clothing amount quantity is determined according to pretest in the described step 2.
Compare with the above-mentioned background technology, the present invention does not need to detect equivalent water level, after fuzzy Judgment determined that the clothing amount in a big way, the 3rd umber of pulse sum that drives according to constant voltage after measurement second umber of pulse and drive motors stop at dewatering state was carried out thinner concrete clothing weight range judgement again.Therefore, the method for the invention can accurately be determined the concrete scope of tested clothing amount in the washing machine.
Description of drawings
Fig. 1 is a kind of flow chart of the method for the invention;
Fig. 2 is the another kind of flow chart of the method for the invention;
Fig. 3 is the method for the invention preferred embodiment flow chart;
Fig. 4 is first table of comparisons two-dimensional representation of the present invention;
Fig. 5 is second table of comparisons two-dimensional representation of the present invention.
The specific embodiment
The invention provides a kind of clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine, can accurately determine the concrete scope of tested clothing amount in the washing machine.
Below in conjunction with accompanying drawing the specific embodiment of the invention is described.
Referring to Fig. 1, this figure is a kind of flow chart of the method for the invention.
Clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine of the present invention, this method may further comprise the steps:
S10, be recorded under the washing machine washing state, change according to predetermined motor and stop time ratio, the positive and negative rotation of drive motors detects first umber of pulse that obtains in first scheduled time.
S20, determine the clothing weight range according to first table of comparisons according to first umber of pulse; Finish less than predetermined clothing amount quantity; Greater than predetermined clothing amount quantity execution in step S30 then.
This moment, the clothing amount and first umber of pulse concerned that this figure is first table of comparisons two-dimensional representation of the present invention referring to shown in Figure 4.First table of comparisons two-dimensional representation shown in Figure 4 is to draw according to experimental result.Concrete experimental basis the method for the invention measures.
Predetermined clothing amount quantity is to determine according to the X-Y scheme that experimental result shown in Figure 4 is drawn.Be that the obvious clothing amount number that becomes straight mean place correspondence of curve is predetermined clothing amount position among Fig. 4.Referring to first table of comparisons, promptly working as the washing machine nominal capacity is 8kg, and when constant voltage was 40% rated power, the predetermined pulse number was 650, and predetermined clothing amount quantity is 4kg.
S30, detection are in second umber of pulse of dewatering state with second scheduled time of constant voltage drive motors work at washing machine.
Detection is in dewatering state at washing machine, with second umber of pulse of second scheduled time of constant voltage drive motors work; After finishing, second scheduled time stops drive motors simultaneously.Described constant voltage can be 30% to 50% motor rated voltage, specifically can select different constant voltage values according to the concrete condition of reality.
S40, detection drive motors stop the 3rd umber of pulse of the 3rd scheduled time of back.
S50, determine the clothing weight range that second umber of pulse is corresponding with the 3rd umber of pulse sum according to second table of comparisons.
The relation of second umber of pulse and the 3rd umber of pulse sum and clothing amount is referring to shown in Figure 5 at this moment, and this figure is second table of comparisons two-dimensional representation of the present invention.
First table of comparisons two-dimensional representation shown in Figure 4 is to draw according to experimental result.The step S10 and the S20 of concrete experimental basis the method for the invention measure.
Second table of comparisons two-dimensional representation of the present invention shown in Figure 5 also is to draw according to experimental result.Step S30, S40 and the S50 of concrete experimental basis the method for the invention measure.
Referring to Fig. 2, this figure is the another kind of flow chart of the method for the invention.
At first, carry out the preparation of testing.
S201, change according to predetermined drive motors and to stop time ratio, with the positive and negative rotation of constant voltage drive motors.
S202, summation pulse number.
Do you S203, judge that rotation time reaches drive motors and changes and to stop rotation time in the time ratio? if reach then execution in step S204; Otherwise return step S201.
S204, drive motors are out of service.
S205, summation pulse number.
Do you S206, judge that the drive motors dwell time reaches drive motors and changes and to stop dwell time in the time ratio? if reach then execution in step S207; Otherwise return step S204.
S207, judge whether to reach drive motors and change stoppage in transit places number? if reach then execution in step S208; Otherwise return step S201.
Judge whether to reach drive motors commentaries on classics stoppage in transit places number and promptly whether reached for first scheduled time.
S208, according to final umber of pulse of step S202 and the final umber of pulse sum of step S205, determine the clothing weight range according to first table of comparisons; Less than predetermined clothing amount quantity execution in step S214 then; Greater than predetermined clothing amount quantity execution in step S209 then.
The final umber of pulse sum of final umber of pulse of step S202 and step S205 i.e. first umber of pulse.
S209, open clutch coupling of washing machine, washing machine inner tub and impeller rotate in the same way, make washing machine be in dewatering state, and drive motors rotated for second scheduled time.
Second scheduled time that described drive motors rotates can be 3 to 8 seconds.Specifically can set for second scheduled time according to the concrete condition of reality.
S210, summation pulse number.
S211, second scheduled time of constant voltage drive motors work stop, and continue inertia and rotate for the 3rd scheduled time.
Described constant voltage can be 30% to 60% motor rated voltage, specifically can select different constant voltage values according to the concrete condition of reality.
The 3rd scheduled time that described drive motors rotates can be 3 to 10 seconds.Specifically can set for the 3rd scheduled time according to the concrete condition of reality.The 3rd scheduled time that described drive motors rotates can equal second scheduled time that described drive motors rotates, and also can adopt respectively the different time periods.
S212, summation pulse number.
S213, according to the final corresponding clothing weight range of umber of pulse sum among final umber of pulse among second table of comparisons determining step S210 and the step S212.
Final umber of pulse is second umber of pulse of the present invention among the step S210; Final umber of pulse is the 3rd umber of pulse of the present invention among the step S212.
S214, process ends.Set corresponding washing parameter according to clothing amount result this moment.
Be that the washing machine of 8kg is an example with the washing machine nominal capacity below, concrete drive motors changes and stops time ratio is 3: 5, and specifically the commentaries on classics time is 0.6 second, is 1 second between the stopping time, and the stall number of run is 6 times.Specifically describe the measuring process of the method for the invention.Referring to Fig. 3, this figure is the method for the invention preferred embodiment flow chart.
The method of the invention preferred implementation may further comprise the steps:
S301, according to the drive motors commentaries on classics time be 0.6 second, be 1 second between the stopping time, the positive and negative rotation of nominal drive voltage drive motors with 40%.
S302, summation pulse number.
Do you S303, judge that rotation time reaches 0.6 second? if reach then execution in step S304; Otherwise return step S301.
S304, drive motors are out of service.
S305, summation pulse number.
Do you S306, judge that the drive motors dwell time reaches 1 second? if reach then execution in step S307; Otherwise return step S304.
Do you S307, judge that drive motors changes stoppage in transit places number and reaches 6 times? if reach then execution in step S308; Otherwise return step S301.
Drive motors commentaries on classics stoppage in transit several 6 used times of places were first scheduled time in the present embodiment.
S308, according to final umber of pulse of step S302 and the final umber of pulse sum of S305, determine the clothing weight range according to first table of comparisons; Less than predetermined clothing amount quantity execution in step S314 then; Greater than predetermined clothing amount quantity execution in step S309 then.
The final umber of pulse sum of final umber of pulse of step S302 and step S305 is first umber of pulse of the present invention.
S309, open clutch coupling of washing machine, washing machine inner tub and impeller rotate in the same way, make washing machine be in dewatering state, and drive motors rotated 5 seconds.
Second scheduled time was 5 seconds in the present embodiment.
S310, summation pulse number.
S311, the work of constant voltage drive motors stopped in 5 seconds, continued inertia and rotated 5 seconds.
S312, summation pulse number.
S313, according to the second final umber of pulse of table of comparisons determining step S310 and the pairing clothing weight range of the final umber of pulse sum of step S312.
The final umber of pulse of step S310 is second umber of pulse of the present invention; The final umber of pulse of step S312 is the present invention's the 3rd umber of pulse.
S314, process ends.Set corresponding washing parameter according to clothing amount result this moment.
First table of comparisons and second table of comparisons see table in the present embodiment.
First table of comparisons
| The washing machine nominal capacity | Constant voltage | The clothing weight range | Pulse number |
| 8kg | 40％V Specified | 1kg-2kg | 880-1130 |
| |
40％V Specified | 2kg-3kg | 780-880 |
| |
40％V Specified | 3kg-4kg | 650-780 |
| |
40％V Specified | 4kg-8kg | Below 650 |
Second table of comparisons
| The washing machine nominal capacity | Constant voltage | The clothing weight range | Pulse number |
| 8kg | 40％V Specified | 4kg-5kg | 330～360 |
| 8kg | 40％V Specified | 5kg-6kg | 260-330 |
| |
40％V Specified | 6kg-7kg | 200-260 |
| |
40％V Specified | 7kg-8kg | Below 200 |
Described drive motors commentaries on classics stops time ratio and can be 3: 10 to 3: 35.Specifically can adopt according to different complete machine situations changeed 0.3～0.8 second, stopped 0.8～1.6 second time scale relation, and drive motors changes stoppage in transit places number can be adopted 4～8 times.Certain drive motors commentaries on classics of the present invention stops time ratio and can also adopt other ratios according to actual conditions, and same drive motors changes stoppage in transit places number and also can set according to actual conditions.Other concrete conditions do not repeat them here.Should think all in the scope of the present invention that for adopting other drive motors commentaries on classics stopping time ratios and other drive motors to change stoppage in transit places numbers it is to be the preferred embodiment for the present invention that above-mentioned drive motors commentaries on classics stopping time ratio and drive motors change stoppage in transit places number.
The present invention carries out thinner concrete clothing weight range judgement in the 3rd umber of pulse sum that dewatering state drives according to constant voltage after measurement second umber of pulse and drive motors stop after fuzzy Judgment determines that the clothing amount in a big way.Therefore, the method for the invention can accurately be determined the concrete scope of tested clothing amount in the washing machine.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine is characterized in that, may further comprise the steps:
1) be recorded under the washing machine washing state, change according to predetermined motor and stop time ratio, the positive and negative rotation of drive motors detects first umber of pulse that obtains in first scheduled time;
2) determine the clothing weight range according to first umber of pulse according to first table of comparisons; Finish less than predetermined clothing amount quantity; Greater than predetermined clothing amount quantity execution in step 3 then;
3) detection is in second umber of pulse of dewatering state with second scheduled time of constant voltage drive motors work at washing machine;
4) detect the 3rd umber of pulse that drive motors stops the 3rd scheduled time of back;
5) determine the clothing weight range that second umber of pulse is corresponding with the 3rd umber of pulse sum according to second table of comparisons.
2. clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine according to claim 1 is characterized in that, described step 3) is specially: detection is in dewatering state at washing machine, with second umber of pulse of second scheduled time of constant voltage drive motors work; After finishing, second scheduled time stops drive motors simultaneously.
3. clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine according to claim 1 is characterized in that, described motor commentaries on classics stops time ratio and was specially 3: 10 to 3: 3.5; Described first scheduled time is that No. 4 to 8 motors commentaries on classics stop the used time.
4. clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine according to claim 1, it is characterized in that, described step 3) is specially: open clutch coupling of washing machine, washing machine inner tub and impeller rotate in the same way, detection is in dewatering state at washing machine, with second umber of pulse of second scheduled time of constant voltage drive motors work.
5. according to the arbitrary described clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine of claim 1 to 4, it is characterized in that described constant voltage is specially 30% to 60% motor rated voltage.
6. according to the arbitrary described clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine of claim 1 to 4, it is characterized in that described second scheduled time was specially 3 to 10 seconds.
7. according to the arbitrary described clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine of claim 1 to 4, it is characterized in that described the 3rd scheduled time was specially 3 to 10 seconds.
8. clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine according to claim 1 is characterized in that, described the 3rd scheduled time equals described second scheduled time.
9. clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine according to claim 1 is characterized in that, described first table of comparisons and second table of comparisons are drawn according to pretest.
10. clothes quantity fuzzy measuring method for DC frequency-changing rotary drum washing machine according to claim 1 is characterized in that, predetermined clothing amount quantity is determined according to pretest in the described step 2.
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| CN107190475A (en) * | 2017-05-08 | 2017-09-22 | 无锡飞翎电子有限公司 | The fuzzy Weighing method and device of washing machine, washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1378005A (en) * | 2002-05-08 | 2002-11-06 | 江苏海狮机械集团有限公司 | Detecting method for cloth quality and quantity of fuzzily controlled industrial washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1378005A (en) * | 2002-05-08 | 2002-11-06 | 江苏海狮机械集团有限公司 | Detecting method for cloth quality and quantity of fuzzily controlled industrial washing machine |
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| JP特开2000-70586A 2000.03.07 |
| JP特开平8-299664A 1996.11.19 |
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