CN114351404A - Washing machine control method and washing machine - Google Patents
Washing machine control method and washing machine Download PDFInfo
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- CN114351404A CN114351404A CN202111515108.0A CN202111515108A CN114351404A CN 114351404 A CN114351404 A CN 114351404A CN 202111515108 A CN202111515108 A CN 202111515108A CN 114351404 A CN114351404 A CN 114351404A
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- 238000005406 washing Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000005303 weighing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The invention discloses a washing machine control method and a washing machine, wherein the washing machine control method comprises the following steps: the motor drives the inner barrel to rotate in a unidirectional mode at a constant speed to enable the load to be tightly attached to the wall of the inner barrel, the computer board obtains current change according to power change of the motor to further obtain a fuzzy value, then the fuzzy value is matched with a preset load weight-fuzzy value curve to obtain load weight, and working parameters are obtained according to the load weight to carry out washing; the load weight-fuzzy value curve is a curve which is preset in a computer board of the washing machine, is obtained by fitting different load weights and fuzzy values corresponding to the different load weights and represents the relation between the fuzzy values and the load weights; the range of the constant speed in the scheme is 30-40rpm, the load can be ensured to be tightly attached to the wall of the inner barrel at the rotating speed, the inner barrel cannot shake greatly, the obtained fuzzy value is only directly related to the weight of the load, and therefore more accurate load weight can be obtained, and the matching of the load weight and working parameters is further realized.
Description
Technical Field
The invention belongs to the field of washing machines, and particularly relates to a washing machine control method and a washing machine.
Background
The existing washing machine has multiple program functions, and often requires a user to independently program according to washing requirements, but because the user does not clearly know working parameters in the washing process, the set working parameters can not be matched with the actual load weight, so that the problems that water resources are wasted due to too high water level setting, or the water level setting is low and the load cannot be thoroughly cleaned occur.
In order to solve the technical problem, in the prior art, the weight of the load is judged through fuzzy weighing, and the working parameters are adjusted according to the weight, so that the problem that the working parameters which are set by a user independently cannot be matched with the actual quantity and weight of the load is solved.
For example, chinese patent application No. CN201410277513.7 discloses a fuzzy weighing method and a pulsator washing machine, wherein the fuzzy weighing method comprises: the motor drives the impeller of the impeller washing machine to rotate at a first rated rotating speed in an accelerating mode, then the motor and the impeller freely decelerate to a second rated rotating speed at the same time, and the weight of a load is determined according to the time consumed by decelerating from the first rated rotating speed to the second rated rotating speed; in the scheme, the free deceleration duration of the motor and the impeller is often influenced by the load weight, the distribution state and the friction force among the impeller, the motor and the inner barrel, so that the load weight obtained by fuzzy weighing in the method often has larger deviation with the actual weight, and the working parameters set on the basis of the weight cannot be well matched with the actual weight of the load.
Chinese patent application No. CN201710323973.2 discloses a fuzzy weighing method for washing machine, in which a clutch is arranged on a motor, a hall sensor is arranged on the clutch, and the fuzzy weighing comprises the following steps: controlling a motor to rotate forward and backward according to a preset beat, acquiring the pulse number generated by a Hall sensor in the forward and backward rotation process of the motor, and judging the load weight of the washing machine according to the pulse number generated by the Hall sensor; however, in the above solution, the number of pulses and the pulse interval of the hall sensor are not only affected by the load distribution state and the load weight, but also affected by the sensitivity of the sensor, and the shaking of the inner tub and the motor caused by uneven load distribution during the switching between the forward rotation and the reverse rotation also affects the accuracy of the result, so that there is a large deviation between the weight of the load obtained in this way and the actual weight of the load, and the problem that the working parameters set by the weight cannot be matched with the actual weight of the load is still caused.
The present invention has been made in view of this situation.
Disclosure of Invention
One of the objectives of the present invention is to provide a control method for a washing machine, in which a motor drives an inner tub to rotate at a constant speed, and obtains a power variation of the motor during the rotation process, so as to obtain a fuzzy value, and then matches a corresponding load weight according to the fuzzy value, so as to improve the accuracy of fuzzy weighing, and further improve the matching degree between a working parameter and the load weight.
Another object of the present invention is to provide a washing machine capable of performing the above control method, wherein the washing machine is preset with an automatic washing program for performing the control method of the washing machine, and the washing machine is started after a user selects the automatic washing program, and the washing machine can automatically operate according to the control method, thereby improving the intelligence level of the washing machine.
In order to achieve the above object, a first aspect of the present invention provides a control method of a washing machine, comprising the steps of:
s1, the motor drives the inner barrel to rotate in one direction at a constant speed to make the load tightly attached to the inner barrel wall, and the computer board obtains a fuzzy value;
s2, the computer board matches the fuzzy value with a preset load weight-fuzzy value curve to obtain corresponding working parameters;
and S3, operating the washing machine according to the acquired working parameters.
In the scheme, the motor drives the inner barrel to rotate in a constant speed one-way mode, the fuzzy value obtained by the computer board is more accurate, and the final test result is not influenced by different distribution states of loads because the inner barrel rotates at the constant speed all the time.
Further, in step S1, the computer board collects power changes of the motor during rotation, obtains current changes according to the power changes, and obtains a fuzzy value according to the current changes.
In the scheme, the inner barrel always rotates at a constant rotating speed, and different distribution states of the load do not affect the rotating speed and directly reflect the power change of the motor, so that the power change of the motor is directly related to the weight of the load, the current change is obtained through the power change, and the fuzzy value obtained according to the current change is only related to the weight of the load.
Further, in step S1, the motor drives the inner tub to rotate at a constant speed within a rotation speed range of 30 to 40 rpm.
In the scheme, the rotating speed range is the preferred rotating speed obtained by technicians on the basis of a large number of experiments, if the speed is lower than 30rpm, the influence of the load weight and the load distribution state on the motor power is small in the rotating process of the inner barrel, the current change cannot be obtained according to the power change, and further the fuzzy value cannot be obtained; if the speed is higher than 40rpm, the load generates a large centrifugal force during the rotation of the inner tub, and the variation of the motor power may be affected by the shaking of the inner tub and the shaking of the motor, thereby causing the obtained fuzzy value not to correspond to the actual weight of the load.
Preferably, the motor drives the inner tub to rotate unidirectionally at a rotation speed of 30 rpm.
Further, in step S1, the motor drives the inner tub to rotate in a single direction at a constant speed for a preset time;
the preset time is not less than 40S.
Preferably, the preset time is 40S.
In the above solution, 40S is a preferable time obtained by a technician based on a lot of experiments, if the time for continuous rotation is shorter than 40S, the number of revolutions of the inner tub is small due to too short time, and a fuzzy value cannot be obtained, and if the time is longer than 40S, the number of revolutions of the inner tub is relatively large, and a more accurate fuzzy value can be obtained, but the washing efficiency of the washing machine is reduced along with the increase of time, so the preset time 40S is the most preferable technical solution.
Further, in step S2, the computer board matches the fuzzy value with a preset load weight-fuzzy value curve to obtain the load weight, and matches the corresponding working parameters according to the load weight.
According to the scheme, the measured fuzzy value is matched with the load weight-fuzzy value curve, so that the weight of the load can be accurately obtained, and then the corresponding working parameters are obtained according to the weight matching of the load, so that the washing effect on the load can be improved by washing the working parameters, and the use experience of a user is improved.
Further, the working parameters include a washing water level, a detergent dosage, a spin-stop ratio, a washing time, a rinsing frequency, a dehydrating frequency, and a dehydrating rotation speed curve.
Furthermore, the load weight-fuzzy value curve in the scheme is preset in the washing machine, the motor drives the inner barrel to rotate in a single direction at a constant rotating speed under different load states to obtain fuzzy values corresponding to different loads, and the different loads and the fuzzy values corresponding to the different loads are fitted in a coordinate system to obtain the load weight-fuzzy value curve.
The load weight-fuzzy value curve is a relation curve which is preset in a computer board before leaving a factory, is obtained by fitting different loads and corresponding fuzzy values and represents the fuzzy value and the load weight.
Further, the range of the constant rotating speed in the scheme is 30-40 rpm.
The constant rotating speed of 30rpm is used for continuously rotating, so that the counterweight can be prevented from generating large shaking while clinging to the inner barrel wall, and a fuzzy value directly related to the load weight is obtained.
Further, each fuzzy value on the load weight-fuzzy value curve corresponds to a unique load weight.
Further, the load weight-fuzzy value curve is a straight line.
In the scheme, the influence of the load distribution state on the fuzzy value measurement is eliminated by controlling the rotating speed and the rotating time of the inner barrel, and the fuzzy value only related to the load weight is obtained, so that the results obtained by using the balance weight to perform the test and using the load to perform the test are basically consistent, the fuzzy value and the load weight basically have a linear relation, the curve obtained by fitting is a straight line, each fuzzy value on the straight line corresponds to the unique load weight, and the weight of the load can be more accurately obtained according to the fuzzy value.
Preferably, the load weight-fuzzy value curves obtained by using different specifications and models of washing machines have different slopes.
Because the washing machines with different specifications and models have inner barrels with different sizes and structures, fuzzy values corresponding to load weights obtained by loads in the inner barrels with different sizes and structures are different, so that a load weight-fuzzy value curve corresponds to the models and the specifications of the washing machines, and the universality of the control method is improved.
The second aspect of the present invention provides a washing machine using the control method of the washing machine, wherein an automatic washing program for executing the control method of the washing machine is preset in a computer board, a user presses a start key after selecting the automatic washing program on a control panel of the washing machine, and the washing machine automatically operates according to the control method of the washing machine.
The working parameters of the whole washing process are determined by the washing machine according to the weight of the load obtained by fuzzy weighing, so that the waste of water resources caused by the fact that a user cannot fully understand the corresponding relation between the working parameters and the weight of the load is avoided, and the problem that the load cannot be cleaned due to insufficient water is also avoided.
The invention has the beneficial effects that:
the motor drives the inner barrel to rotate in a one-way mode at a constant speed, so that the friction force in the acceleration, deceleration and positive and negative rotation processes and the influence of the shaking of the motor and the inner barrel on the result are eliminated, the fuzzy value obtained by the method is directly related to the weight of the load, the obtained load weight is more accurate, the obtained working parameters can be better matched with the load weight, and the washing effect is improved; the inner barrel rotates in a single direction at a constant rotating speed of 30-40rpm, the load can generate enough centrifugal force to enable the power of the motor to change due to the rotation, meanwhile, the motor cannot shake due to overlarge centrifugal force, the influence of other factors on a detection result is eliminated, the power change of the motor is only related to the weight of the load at the moment, and therefore a fuzzy value corresponding to the weight of the load is obtained; the load weight-fuzzy value curve is obtained by fitting different load weights and fuzzy values corresponding to the loads in a coordinate system before the washing machine leaves a factory, and the washing machine can be matched with the load weight-fuzzy value curve according to the measured fuzzy value to obtain more accurate load weight; the load weight-fuzzy value curve is a straight line, namely one fuzzy value corresponds to one load weight, so that the accuracy of the obtained load weight is improved, and further obtained working parameters can be matched with the load weight to obtain a better washing effect.
Drawings
Fig. 1 is a flow chart of a control method of a washing machine according to the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, and it will be understood by those skilled in the art that the following embodiments are only for explaining the technical principles of the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a detachable connection, or an integral connection; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention according to their specific situation.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example one
As an embodiment of the present invention, the present embodiment provides a control method of a washing machine, including the steps of:
s1, driving the inner barrel to rotate in one direction at a constant speed by the motor, and acquiring a fuzzy value by the computer board;
s2, the computer board matches the fuzzy value with a preset load weight-fuzzy value curve to obtain corresponding working parameters;
and S3, operating the washing machine according to the acquired working parameters.
In this embodiment, step S1 eliminates the effect of friction on the detection result during acceleration, deceleration, and forward and reverse rotation of the inner barrel in the prior art by controlling the inner barrel to rotate in a single direction at a constant speed, and simultaneously avoids the distribution state and eccentric direction of the load in the inner barrel from changing, so that the finally obtained fuzzy value is only related to the weight of the load.
Furthermore, the motor drives the inner barrel to rotate in a single direction at a constant speed, the computer board obtains the power change of the motor, the power change is converted into current change due to the fact that the power supply voltage of the washing machine is unchanged, and then a fuzzy value is obtained according to the current change.
The load is subjected to centrifugal force in the inner barrel, so that the inner barrel generates a speed change trend in the rotating process, in order to maintain that the inner barrel rotates at a constant speed, the running power of a motor fluctuates, the power supply voltage of the washing machine is rated voltage, so that the current synchronously changes along with the power change, a fuzzy value obtained by the current change is directly related to the weight of the load, and the load weight obtained by matching the fuzzy value with a preset load weight-fuzzy value curve is closer to the actual weight of the load.
Further, in step S1, the motor drives the inner tub to rotate in one direction at a speed of 30 rpm.
In the above scheme, 30rpm is a preferred rotating speed obtained by a technician on the basis of a large number of experiments, if the speed is lower than 30rpm, the influence of load weight and load distribution state on the motor power is small in the rotating process of the inner barrel, current change cannot be obtained according to power change, and then a fuzzy value cannot be obtained.
Further, the inner barrel rotates unidirectionally at the rotating speed of 30rpm for not less than 40S.
In the above scheme, 40S is a preferable time obtained by a technician based on a lot of experiments, if the duration is shorter than 40S, the number of revolutions of the inner tub is small due to too short time, and a fuzzy value cannot be obtained, and if the duration is longer than 40S, the number of revolutions of the inner tub is relatively large, and a more accurate fuzzy value can be obtained, but the washing efficiency of the washing machine is reduced along with the increase of time.
Further, in step S2, the computer board matches the fuzzy value with a preset load weight-fuzzy value curve to obtain a corresponding load weight, and then matches the corresponding working parameter according to the load weight.
The load weight-fuzzy value curve is a relation curve which is preset in a computer board before leaving a factory, is obtained by fitting different loads and corresponding fuzzy values and represents the fuzzy value and the load weight.
Further, the working parameters include a washing water level, a detergent dosage, a spin-stop ratio, a washing time, a rinsing frequency, a dehydrating frequency, and a dehydrating rotation speed curve.
The load weight obtained in the scheme is closer to the actual weight of the load, and the working parameters obtained in the mode are adopted for washing, so that the washing effect is improved, and the water resource is saved.
Further, the load weight-fuzzy value curve is preset in the washing machine, and the obtaining mode is as follows:
and respectively putting the weights with different weights into the inner barrel, driving the inner barrel to rotate in a single direction at the rotating speed of 30rpm by the motor, respectively obtaining fuzzy values corresponding to the weights of the different weights, and fitting the weights of the weights and the fuzzy values in a coordinate system to obtain a load weight-fuzzy value curve.
In the scheme, the continuous rotation at the constant rotating speed of 30rpm avoids the shaking of the inner barrel and the influence of the rotating speed change on the measurement result, and further obtains a fuzzy value directly related to the load weight.
Because the fuzzy value obtained by the test mode is only related to the load weight, each fuzzy value on the load weight-fuzzy value curve only corresponds to a unique load weight, and more accurate load weight can be obtained.
Further, the load weight-fuzzy value curve is a straight line.
According to the scheme, the rotating speed and the rotating time of the inner barrel are controlled, the influence of the load distribution state and the inner barrel shaking on fuzzy value measurement is eliminated, and the fuzzy value only related to the load weight is obtained, so that the fuzzy value and the load weight basically form a linear relation, a straight line is obtained through fitting, each fuzzy value on the straight line corresponds to the unique load weight, and the load weight can be obtained more accurately according to the fuzzy value.
Further, the load weight-fuzzy value curves obtained using different sizes and models of washing machines have different slopes.
Because the washing machines with different specifications and models have inner barrels with different sizes and structures, fuzzy values corresponding to load weights obtained by loads in the inner barrels with different sizes and structures are different, so that a load weight-fuzzy value curve corresponds to the models and the specifications of the washing machines, and the universality of the control method is improved.
Example two
The present embodiment provides a control method of a washing machine, which is different from the first embodiment in that a motor drives an inner tub to rotate in one direction at a rotation speed of 40rpm in the present embodiment.
In the above scheme, 40rpm is the maximum value of the rotating speed of the inner barrel obtained by a technician on the basis of a large number of experiments, if the speed is higher than 40rpm, the load generates a large centrifugal force in the rotating process of the inner barrel, so that the load and the motor shake, the change of the motor power is influenced by the shake of the inner barrel and the shake of the motor, and the acquired fuzzy value cannot correspond to the actual weight of the load.
The invention also provides a washing machine with the control method of the washing machine, which comprises the following steps:
EXAMPLE III
As another embodiment of the present invention, this embodiment provides a washing machine having the control method of the washing machine according to the first embodiment.
In this embodiment, an automatic washing program for executing the control method of the washing machine according to the first embodiment is preset in the computer board of the washing machine, a button for a user to select the automatic washing program is correspondingly arranged on the control panel of the washing machine, the user presses the start key after selecting the automatic washing program, and the washing machine automatically operates according to the preset control method of the washing machine.
Furthermore, a prompting lamp for prompting a user to select the automatic washing program is arranged on the control panel of the washing machine, and the prompting lamp is turned on to prompt the user that the automatic washing program is selected after the user selects the automatic washing program.
According to the scheme, the user selects the automatic washing program to wash, the working parameters of the washing process are determined by the weight of the load obtained by the washing machine according to the fuzzy weighing, waste of water resources caused by the fact that the user cannot fully understand the corresponding relation between the working parameters and the weight of the load is avoided, and the problem that the load cannot be cleaned due to insufficient water inflow is also avoided.
The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications to the equivalent embodiments by using the technical contents disclosed above without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (10)
1. A control method of a washing machine, characterized by comprising the steps of:
s1, the motor drives the inner barrel to rotate in one direction at a constant speed to make the load tightly attached to the inner barrel wall, and the computer board obtains a fuzzy value;
s2, the computer board matches the fuzzy value with a preset load weight-fuzzy value curve to obtain corresponding working parameters;
and S3, operating the washing machine according to the acquired working parameters.
2. The control method of a washing machine according to claim 1, wherein in step S1, the computer board collects power variation of the motor during rotation, obtains current variation according to the power variation, and obtains a fuzzy value according to the current variation.
3. The control method of a washing machine as claimed in claim 1, wherein the rotation speed range of the motor-driven inner tub rotating at a constant speed in step S1 is 30-40 rpm;
preferably, the motor drives the inner tub to rotate unidirectionally at a rotation speed of 30 rpm.
4. The control method of a washing machine as claimed in any one of claims 1 to 3, wherein the motor drives the inner tub to rotate in one direction at a constant speed for a predetermined time in step S1;
the preset time is not less than 40S;
preferably, the preset time is 40S.
5. The control method of a washing machine as claimed in claim 1, wherein in step S2, the computer board matches the fuzzy value with a preset load weight-fuzzy value curve to obtain the load weight, and matches the corresponding operating parameters according to the load weight.
6. The control method of a washing machine according to any one of claims 1 to 5, wherein the load weight-fuzzy value curve is preset in the washing machine, the motor drives the inner tub to rotate in one direction at a constant rotation speed under different load conditions to obtain fuzzy values corresponding to different loads, and the load weight-fuzzy value curve is obtained by fitting different loads and fuzzy values corresponding to different loads in a coordinate system.
7. The control method of a washing machine according to claim 6, wherein the constant rotation speed ranges from 30 to 40 rpm.
8. The washing machine control method as claimed in claim 6, wherein each fuzzy value on the load weight-fuzzy value curve corresponds to a unique load weight.
9. The control method of a washing machine according to claim 8, wherein the load weight-fuzzy value curve is a straight line;
preferably, the load weight-fuzzy value curves obtained by using different specifications and models of washing machines have different slopes.
10. A washing machine adopting the control method of the washing machine as claimed in any one of claims 1 to 9, wherein an automatic washing program for performing the control method of the washing machine is preset in a computer board, and a user presses a start key after selecting the automatic washing program on a control panel of the washing machine, and the washing machine is automatically operated according to the control method of the washing machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111515108.0A CN114351404A (en) | 2021-12-13 | 2021-12-13 | Washing machine control method and washing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111515108.0A CN114351404A (en) | 2021-12-13 | 2021-12-13 | Washing machine control method and washing machine |
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| CN114351404A true CN114351404A (en) | 2022-04-15 |
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| CN202111515108.0A Pending CN114351404A (en) | 2021-12-13 | 2021-12-13 | Washing machine control method and washing machine |
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