Control method and apparatus for washing machine

Abstract

The application provides a control method and device of a washing machine, which comprises the following steps: obtaining a stored dry cloth weight of clothes in the washing machine when the washing machine enters a dehydration stage, and determining a first water level corresponding to the dry cloth weight and a rotating speed; opening a drain valve of a washing tub of the washing machine; when the water level of the washing tub is lowered to the first water level, closing the drain valve and controlling the washing tub to rotate at the rotating speed; detecting an eccentricity value of the clothes at the rotating speed; and when the eccentricity value is less than or equal to a preset eccentricity value, opening the drain valve and increasing the rotating speed. In the application, the water level of the washing tub is lowered to the first water level corresponding to the dry cloth weight, so that the clothes rotate in the presence of water, thereby balancing the clothes in the washing tub to reduce the distance of the clothes from the center of the washing tub, and then the drain valve is opened for dehydration of the clothes in the case of a small eccentric distance, thereby reducing the amount of clothes impacting the inside of the washing tub, so that the noise generated by the dehydration of the washing tub is small.

Description

Technical Field

[0001] This invention relates to washing machine technology, and more particularly to a control method and apparatus for a washing machine. Background Technology

[0002] As people's living standards improve, washing machines have become a standard appliance in every household.

[0003] When washing clothes, a washing machine needs to rinse and spin-dry them. During the spin-drying process, the washing machine's drum speed changes from low to high.

[0004] When a washing machine switches from low-speed spin-drying to high-speed spin-drying, the clothes can easily hit the inner wall of the washing tub, causing the washing machine to make a lot of noise. Summary of the Invention

[0005] This invention provides a control method and apparatus for a washing machine to solve the problem of excessive noise generated during the spin-drying process of the washing machine.

[0006] On one hand, the present invention provides a control method for a washing machine, comprising:

[0007] When the washing machine enters the spin-drying stage, the weight of the dry cloth of the clothes stored in the washing machine is obtained, and the first water level and the first rotation speed corresponding to the weight of the dry cloth are determined. When the washing machine receives a washing command, the weight detected by the weight sensor of the washing machine is saved as the weight of the dry cloth.

[0008] Open the drain valve of the washing machine tub;

[0009] When the water level in the washing tub is lowered to the first water level, the drain valve is closed, and the washing tub is controlled to rotate at the first rotation speed.

[0010] The first eccentricity value of the garment at the first rotation speed is detected. The first eccentricity value is used to represent the distance of the garment from the center of the washing tub. The first eccentricity value and the distance are positively correlated.

[0011] When the first eccentricity value is less than or equal to the first preset eccentricity value, the drain valve is opened and the first rotation speed is increased.

[0012] In one embodiment, the step of opening the drain valve and increasing the first rotational speed when the first eccentricity value is less than or equal to a first preset eccentricity value includes:

[0013] When the first eccentricity value is less than or equal to the first preset eccentricity value, the washing machine is controlled to stop rotating and the drain valve is opened;

[0014] The water level in the washing tub is lowered to the second water level, the drain valve is closed, and the washing tub is controlled to rotate at a second rotation speed, which is greater than the first rotation speed.

[0015] Detect the second eccentricity value of the garment at the second rotation speed;

[0016] When the second eccentricity value is less than or equal to the second preset eccentricity value, the washing tub is controlled to rotate at a third rotation speed, wherein the second rotation speed and the third rotation speed form a rotation speed resonance zone.

[0017] In one embodiment, after the step of controlling the washing tub to rotate at a third rotational speed, the method further includes:

[0018] After the washing tub has rotated at the third speed for a first preset time, the drain valve is opened, and the washing tub is controlled to rotate at a target speed, which is greater than the third speed.

[0019] In one embodiment, after the step of detecting the second eccentricity value of the garment at the second rotational speed, the method further includes:

[0020] When the second eccentricity value is greater than the second preset eccentricity value, the washing machine is controlled to enter the rinsing stage;

[0021] After the rinsing stage is completed, the spin-drying stage begins, and the process returns to the steps of lowering the water level in the washing tub to the second water level and closing the drain valve.

[0022] In one embodiment, the step of controlling the washing machine to enter the rinsing stage when the second eccentricity value is greater than the second preset eccentricity value includes:

[0023] When the second eccentricity value is greater than the second preset eccentricity value, increase the first number of times the second eccentricity value is greater than the second preset eccentricity value;

[0024] If the first number of increases does not reach the first preset number, the washing machine is controlled to enter the rinsing stage.

[0025] In one embodiment, after the step of increasing the second eccentricity value by a first number of times greater than the second preset eccentricity value, the method further includes:

[0026] When the first number of times is increased reaches a first preset number, the washing of the clothes is stopped and an alarm message is output.

[0027] In one embodiment, after the step of detecting the first eccentricity value of the garment at the first rotational speed, the method further includes:

[0028] When the first eccentricity value is greater than the first preset eccentricity value, the washing tub is controlled to rotate continuously for a second preset time according to the set rotation-stop ratio;

[0029] Return to the step of controlling the washing tub to rotate at the first rotation speed.

[0030] In one embodiment, the step of controlling the washing tub to continuously rotate for a second preset time according to a set rotation-stop ratio when the first eccentricity value is greater than a first preset eccentricity value includes:

[0031] When the first eccentricity value is greater than the first preset eccentricity value, the second number of rotations of the washing tub according to the set rotation-stop ratio is increased;

[0032] If the second number of increases does not reach the second preset number, the washing tub is controlled to continue rotating for a second preset time according to the set rotation-stop ratio.

[0033] In one embodiment, after the step of increasing the second number of rotations of the washing tub according to the set rotation-stop ratio, the method further includes:

[0034] When the second number of increases reaches the second preset number, the washing machine is controlled to enter the rinsing stage;

[0035] When the washing machine enters the spin-drying stage, return to the step of opening the drain valve of the washing tub of the washing machine.

[0036] In one embodiment, the step of controlling the washing machine to enter the rinsing stage when the second number of times reaches a second preset number includes:

[0037] When the second number of times reaches the second preset number of times, the number of times the washing machine enters the rinsing stage is increased to the third time;

[0038] If the third increase in the number of cycles does not reach the third preset number, the washing machine is controlled to enter the rinsing stage.

[0039] In one embodiment, after the step of increasing the number of times the washing machine enters the rinsing stage for the third time, the method further includes:

[0040] When the third preset number of times is reached, the washing of the clothes is stopped and an alarm message is output.

[0041] In one embodiment, the first preset eccentricity value is the maximum eccentricity value under normal motor startup, and the motor is used to drive the washing tub to rotate.

[0042] On the other hand, the present invention also provides a washing machine, comprising:

[0043] The acquisition module is used to acquire the stored dry cloth weight of the clothes in the washing machine, and determine the first water level and first rotation speed corresponding to the dry cloth weight. When the washing machine receives a washing instruction, the weight detected by the weight sensor of the washing machine is saved as the dry cloth weight.

[0044] A control module for opening the drain valve of the washing tub of the washing machine;

[0045] The control module is also used to close the drain valve and control the washing tub to rotate at the first rotation speed when the water level of the washing tub is lowered to the first water level.

[0046] The control module is also used to detect the first eccentricity value of the clothes at the first rotation speed. The first eccentricity value is used to represent the distance of the clothes from the center of the washing tub. The first eccentricity value and the distance are positively correlated.

[0047] The control module is further configured to open the drain valve and increase the first rotational speed when the first eccentricity value is less than or equal to the first preset eccentricity value.

[0048] On the other hand, the present invention also provides a washing machine, including: a memory and a processor;

[0049] The memory stores computer-executed instructions;

[0050] The processor executes computer execution instructions stored in the memory, causing the processor to perform the washing machine control method described above.

[0051] On the other hand, the present invention also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the washing machine control method described above.

[0052] On the other hand, the present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the washing machine control method described above.

[0053] The washing machine control method and apparatus provided by this invention, when the washing machine enters the spin-drying stage, acquires the dry weight of the clothes in the washing machine, determines the first water level and first rotation speed corresponding to the dry weight, opens the drain valve of the washing tub, and when the water level in the washing tub drops to the first water level, closes the drain valve and controls the washing tub to rotate at the first rotation speed. The eccentricity value of the clothes at the first rotation speed is detected; if the eccentricity value is less than a preset eccentricity value, the drain valve is opened and the first rotation speed is increased. In this invention, when the washing machine enters the spin-drying stage, the water level in the washing tub is lowered to the first water level corresponding to the dry weight of the clothes, allowing the clothes to rotate while there is water. This balances the clothes in the washing tub, reducing the distance the clothes deviate from the center of the washing tub. With a smaller eccentricity, the drain valve is opened to spin-dry the clothes, reducing the amount of clothes impacting the inside of the washing tub, thus reducing the noise generated by the spin-drying process. Attached Figure Description

[0054] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0055] Figure 1 This is a system architecture diagram for implementing the control method of the washing machine according to the present invention;

[0056] Figure 2 This is a flowchart illustrating the first embodiment of the control method for a washing machine according to the present invention;

[0057] Figure 3 This is a detailed flowchart of step S50 in the second embodiment of the control method for the washing machine of the present invention;

[0058] Figure 4 This is a flowchart illustrating the third embodiment of the control method for a washing machine according to the present invention.

[0059] Figure 5 This is a flowchart illustrating the fourth embodiment of the control method for a washing machine according to the present invention.

[0060] Figure 6 This is a schematic diagram of the functional modules of the washing machine of the present invention;

[0061] Figure 7 This is a schematic diagram of the hardware structure of the washing machine of the present invention.

[0062] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0063] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0064] This invention provides a control method for a washing machine, which can be achieved through... Figure 1 The system architecture diagram shown is implemented. (See example...) Figure 1 As shown, the washing machine 100 includes a washing tub 110. When the washing machine 100 enters the spin-drying stage, the drain valve inside the washing tub 110 (not in operation) Figure 1 The washing machine 100 opens the drain valve and, after the water level in the washing tub 110 drops to the preset water level 111, closes the drain valve. The washing machine 100 then controls the washing tub 110 to rotate at a lower speed to balance the water level of the clothes inside. The washing machine 100 is equipped with a device for detecting the eccentricity of the clothes inside the washing tub 110. When the washing tub 110 rotates, this device detects the eccentricity of the clothes. If the eccentricity is less than the set eccentricity, the drain valve is opened to drain the clothes, and the initial speed is increased to spin-dry them. This utilizes the water balancing effect to significantly reduce the likelihood of clothes hitting the tub during low-speed spin-drying, thus greatly reducing the probability of vibration and improving the user experience caused by noise.

[0065] The technical solutions of the present invention and how they solve the above-mentioned technical problems will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0066] Reference Figure 2 , Figure 2 This is a first embodiment of the control method for a washing machine according to the present invention. The control method for the washing machine includes the following steps:

[0067] Step S10: When the washing machine enters the spin-drying stage, the weight of the dry cloth of the clothes stored in the washing machine is obtained, and the first water level and the first rotation speed corresponding to the weight of the dry cloth are determined. When the washing machine receives a washing command, the weight detected by the weight sensor of the washing machine is saved as the weight of the dry cloth.

[0068] In this embodiment, a weight sensor is installed at the bottom of the washing machine tub. When the washing machine receives a washing command, it saves the weight detected by the weight sensor as the dry weight of the clothes in the tub. The dry weight is the weight of the clothes in the tub before they absorb water.

[0069] During the rinsing stage of a washing machine, the tub rotates counter-clockwise once, stops for a short time, and then rotates clockwise once. This ensures thorough rinsing of the clothes, but it can cause them to be washed unevenly. During the spin-drying stage, these unevenly washed clothes are more likely to hit the inner wall of the tub, resulting in increased noise. To address this, when the washing machine enters the spin-drying stage, it calculates the weight of the dry clothes stored in the washing cycle. The machine then determines the water level and spin speed corresponding to this weight. This water level is defined as the first water level, and the spin speed as the first spin speed. The first water level is determined based on the weight of the dry clothes; the heavier the clothes and the larger their volume, the higher the water level should be in the tub. Similarly, the first spin speed is also determined based on the weight of the dry clothes; the heavier the clothes, the higher the required spin speed. This combination of a higher first water level and a higher first spin speed allows for a more balanced water level and spin speed within the tub, ensuring better water distribution across the clothes. The mapping relationship between the first rotation speed, the first water level, and the weight of the dry cloth was established through test data. The test data was obtained by testing the water level and rotation speed under the condition that the weight of the dry cloth was constant and the eccentricity of the clothing was minimized.

[0070] Step S20: Open the drain valve of the washing machine tub.

[0071] After the washing machine reaches the initial water level, it opens the drain valve inside the washing tub and uses a water level gauge inside the tub to determine the water level in real time.

[0072] Step S30: When the water level in the washing tub drops to the first water level, close the drain valve.

[0073] When the water level detected by the water level gauge reaches the first water level, that is, when the water level in the washing tub drops to the first water level, the washing machine closes the drain valve and then controls the washing tub to rotate at the first rotation speed, which is unidirectional. The first rotation speed is a relatively small value, that is, the difference between the first rotation speed and the minimum rotation speed of the washing tub is less than a preset difference. When the washing tub rotates at the first rotation speed, the residual water in the tub helps to balance the clothes, allowing them to be evenly distributed within the tub.

[0074] Step S40: Control the washing tub to rotate at a first speed and detect the first eccentricity value of the clothes at the first speed. The first eccentricity value is used to represent the distance of the clothes from the center of the washing tub. The first eccentricity value is positively correlated with the distance.

[0075] The washing tub is equipped with a device to detect the eccentricity of the clothes. When the washing tub rotates at a first speed, the device can detect the eccentricity of the clothes at that first speed, and this eccentricity is defined as the first eccentricity value. Furthermore, the first eccentricity value can be detected again after the washing tub has rotated at the first speed for a preset period of time. The eccentricity value represents the distance the clothes deviate from the center of the washing tub, and there is a positive correlation between the distance and the eccentricity value.

[0076] In step S50, when the first eccentricity value is less than or equal to the first preset eccentricity value, the drain valve is opened and the first rotation speed is increased.

[0077] Once the washing machine determines that the first eccentricity value is less than or equal to the first preset eccentricity value, it can begin actual spin-drying. At this point, the washing machine opens the drain valve and increases the first spin speed to spin-dry the clothes.

[0078] It should be noted that the first preset eccentricity value is the maximum eccentricity value under normal motor startup, and the motor is used to drive the washing tub to rotate. When the weight of the dry cloth is less than the first preset weight, the motor can start normally; if the weight of the dry cloth is greater than the second preset weight, the clothes in the washing tub will be unbalanced, and the washing machine will produce significant noise during the spin cycle. Therefore, when the washing machine enters the spin cycle, the weight of the dry cloth is obtained. If the weight of the dry cloth is greater than the second preset weight, the corresponding first water level and first rotation speed need to be obtained to balance the clothes in the washing tub. If the weight of the dry cloth is less than or equal to the second preset weight, normal spin-drying proceeds without needing to balance the clothes before spin-drying.

[0079] In the technical solution provided in this embodiment, when the washing machine enters the spin-drying stage, the weight of the dry fabric of the clothes in the washing machine is obtained, and the first water level and first rotation speed corresponding to the weight of the dry fabric are determined. The drain valve of the washing tub is opened. When the water level of the washing tub is lowered to the first water level, the drain valve is closed and the washing tub is controlled to rotate at the first rotation speed. The eccentricity value of the clothes at the first rotation speed is detected. If the eccentricity value is less than the preset eccentricity value, the drain valve is opened and the first rotation speed is increased. In this invention, when the washing machine enters the spin-drying stage, the water level of the washing tub is lowered to the first water level corresponding to the weight of the dry fabric of the clothes, so that the clothes rotate in the presence of water. This balances the clothes in the washing tub by reducing the distance of the clothes from the center of the washing tub. Then, with a smaller eccentricity distance, the drain valve is opened to spin-dry the clothes, reducing the amount of clothes impacting the inside of the washing tub, thereby reducing the noise generated by the washing tub during spin-drying.

[0080] Reference Figure 3 , Figure 3 This is a second embodiment of the control method for a washing machine of the present invention. Based on the first embodiment, step S50 includes:

[0081] In step S51, when the first eccentricity value is less than or equal to the first preset eccentricity value, the washing machine is controlled to stop rotating and the drain valve is opened.

[0082] In this embodiment, when the washing machine transitions from low-speed spin-drying to high-speed spin-drying, it passes through a speed resonance zone. When the washing tub's rotation speed is in this resonance zone, the tub vibrates, causing the clothes to vibrate and impact the inner wall of the tub, resulting in significant noise. To address this, water can be retained in the tub to maintain the clothes' balance, allowing the tub to smoothly navigate the speed resonance zone.

[0083] When the first eccentricity value is less than the first preset eccentricity value, the washing machine stops rotating to ensure accurate detection of the water level in the washing tub. The washing machine then opens the drain valve to drain the water.

[0084] Step S52: Lower the water level in the washing tub to the second water level, close the drain valve, and control the washing tub to rotate at the second rotation speed, which is greater than the first rotation speed.

[0085] When the water level in the washing tub is adjusted to the second level, close the drain valve and control the washing tub to rotate at the second speed. The noise level is minimized when the water level is at the second level and the tub rotates at the second speed, and this second water level effectively balances the clothes within the second speed range. It should be noted that the second speed is higher than the first speed, and the washing tub achieves the second speed through acceleration.

[0086] Step S53: Detect the second eccentricity value of the clothing at the second rotation speed.

[0087] When the washing tub reaches the second rotation speed, the eccentricity value of the clothes at this second rotation speed can be detected, and this eccentricity value is defined as the second eccentricity value. The washing tub can continue to rotate at the second rotation speed for a period of time to allow the water in the tub to fully balance the clothes, and then the second eccentricity value of the clothes at the second rotation speed can be detected again.

[0088] Step S54: When the second eccentricity value is less than or equal to the second preset eccentricity value, the washing tub is controlled to rotate at the third rotation speed, wherein the second rotation speed and the third rotation speed constitute a rotation speed resonance zone.

[0089] When the second eccentricity value is less than or equal to the second preset eccentricity value, it can be determined that the washing tub can smoothly pass through the speed resonance zone. In response, the washing machine controls the washing tub to rotate at the third speed, that is, controls the washing tub to rotate with acceleration until the washing machine's speed reaches the third speed. The third speed and the second speed constitute the speed resonance zone.

[0090] Furthermore, after the washing tub rotates at the third speed for the first preset time, the drain valve is opened, and the washing tub is controlled to rotate at the target speed, so that the washing tub enters the high-speed spin-drying stage. The target speed is greater than the third speed. The target speed can be the maximum speed of the washing tub or slightly less than the maximum speed. That is, the difference between the target speed and the maximum speed is less than the preset difference.

[0091] In the technical solution provided in this embodiment, when the first eccentricity value is less than the first preset eccentricity value, the water level is lowered again, and the washing tub is controlled to rotate at the second speed. Then, the second eccentricity value of the clothes at the second speed is detected. If the second eccentricity value is less than or equal to the second preset eccentricity value, the washing tub is controlled to rotate at the third speed. That is, the water in the washing tub allows the washing tub to smoothly pass through the speed resonance zone, reducing the probability of clothes hitting the inside of the washing tub and reducing the noise caused by the vibration of the washing tub in the speed resonance zone.

[0092] Reference Figure 4 , Figure 4 This is a third embodiment of the control method for a washing machine of the present invention. Based on the second embodiment, after step S53, it further includes:

[0093] Step S60: When the second eccentricity value is greater than the second preset eccentricity value, control the washing machine to enter the rinsing stage.

[0094] In this embodiment, if the second eccentricity value is greater than the second preset eccentricity value, it can be determined that the washing tub cannot smoothly pass through the speed resonance zone. In this case, the washing machine can perform a rinsing stage again to rinse and correct the clothes so that the clothes are balanced.

[0095] Step S70: After the rinsing stage is completed, the dehydration stage begins.

[0096] After the rinsing stage is completed, the washing machine enters the spin-drying stage, where the water level in the washing tub is lowered to the second water level. That is, the process returns to steps S52 and S53.

[0097] Furthermore, since the washing machine may repeatedly perform rinsing when the second eccentricity value exceeds the second preset eccentricity value multiple times, it is necessary to limit the number of rinsing cycles.

[0098] When the washing machine determines that the second eccentricity value is greater than the second preset eccentricity value, it increases the number of times the second eccentricity value exceeds the second preset eccentricity value. This number is defined as the "first count," which represents the number of times the washing machine continuously enters the rinsing stage. If the first count does not reach the first preset count, the washing machine can be controlled to enter the rinsing stage. When the first count reaches the first preset count, the washing machine stops washing clothes and outputs an alarm message indicating a washing error. The first preset count can be any composite number; for example, the first preset count is 2 times.

[0099] In the technical solution provided in this embodiment, when the second eccentricity value is greater than the second preset eccentricity value, the washing machine is controlled to enter the rinsing stage. After the rinsing stage is completed and the washing machine enters the spin-drying stage, the process returns to adjust the water level of the washing machine to the second water level, so that the washing tub can smoothly pass through the speed resonance zone again.

[0100] Reference Figure 5 , Figure 5 This is a fourth embodiment of the control method for a washing machine of the present invention. Based on any one of the first to third embodiments, after step S40, it further includes:

[0101] Step S80: When the first eccentricity value is greater than the first preset eccentricity value, control the washing tub to continue rotating for a second preset time according to the set rotation-stop ratio.

[0102] In this embodiment, when the first eccentricity value is determined to be greater than the first preset eccentricity value, it can be determined that the noise generated by the clothes hitting the inner wall of the washing tub will be relatively large. Therefore, the washing machine controls the washing tub to continuously rotate for a second preset duration according to a set rotation-stop ratio. The washing tub rotates at a set speed for the first duration, and then stops rotating for the second duration; the ratio between the first duration and the second duration is the set rotation-stop ratio. By rotating the washing tub at the set rotation-stop ratio, the clothes are evenly distributed within the washing tub.

[0103] After a second preset duration, the process returns to controlling the washing tub to rotate at the first speed, which involves detecting the first eccentricity value to determine whether the eccentricity value of the clothes has decreased.

[0104] Furthermore, since there will be multiple instances where the first eccentricity value exceeds the first preset eccentricity value, the washing machine will repeatedly perform the even distribution, increasing the washing time. Therefore, it is necessary to limit the number of times the washing machine performs even distribution.

[0105] When the washing machine determines that the first eccentricity value is greater than the first preset eccentricity value, it increases the number of times the washing tub rotates according to the set rotation-stop ratio. This number is defined as the second number, which represents the number of times the washing machine performs even distribution. If the increased second number does not reach the second preset number, the washing tub can be controlled to continue rotating according to the set rotation-stop ratio for a second preset duration. The second preset number can be any composite number, for example, the second preset number is 3 times.

[0106] When the second preset number of cycles is reached, the washing machine will enter the rinsing stage to rebalance the distribution of clothes. Since the second preset number of cycles may be reached multiple times, the washing machine will repeatedly enter the rinsing stage, increasing the washing time. Therefore, it is necessary to limit the number of times the washing machine enters the rinsing stage. To address this, when the second preset number of cycles is reached (the second preset number is reset to zero), the number of times the washing machine enters the rinsing stage is increased; this number is defined as the third preset number. If the third preset number of cycles does not reach the third preset number, the washing machine will enter the rinsing stage. If the third preset number of cycles is reached, the washing machine will stop washing clothes and output an alarm message indicating a washing error. The third preset number of cycles can be any composite number; for example, the third preset number of cycles is 2.

[0107] In the technical solution provided in this embodiment, when the first eccentricity value is greater than the first eccentricity value, the washing tub is controlled to rotate continuously for a second preset time at a set rotation-stop ratio to evenly distribute the clothes, so that the first eccentricity value of the candidate detection is smaller, thereby ensuring that the washing machine generates less noise.

[0108] The present invention also provides a washing machine, as shown in the reference. Figure 6 The washing machine 600 includes:

[0109] The acquisition module 610 is used to acquire the stored dry cloth weight of the clothes in the washing machine and determine the first water level and first rotation speed corresponding to the dry cloth weight. When the washing machine receives a washing instruction, the weight detected by the weight sensor of the washing machine is saved as the dry cloth weight.

[0110] Control module 620 is used to open the drain valve of the washing tub of the washing machine;

[0111] The control module 620 is used to close the drain valve and control the washing tub to rotate at a first speed when the water level in the washing tub is lowered to the first water level.

[0112] The control module 620 is used to detect the first eccentricity value of the clothes at the first rotation speed. The first eccentricity value is used to represent the distance of the clothes from the center of the washing tub. The first eccentricity value is positively correlated with the distance.

[0113] The control module 620 is used to open the drain valve and increase the first rotational speed when the first eccentricity value is less than or equal to the first preset eccentricity value.

[0114] In one embodiment, the washing machine 600 includes:

[0115] The control module 620 is used to control the washing machine to stop rotating and open the drain valve when the first eccentricity value is less than or equal to the first preset eccentricity value.

[0116] The control module 620 is used to lower the water level of the washing tub to the second water level, close the drain valve, and control the washing tub to rotate at a second speed, which is greater than the first speed.

[0117] The detection module is used to detect the second eccentricity value of the clothing at the second rotation speed;

[0118] The control module 620 is used to control the washing tub to rotate at a third rotation speed when the second eccentricity value is less than or equal to the second preset eccentricity value, wherein the second rotation speed and the third rotation speed constitute a rotation speed resonance zone.

[0119] In one embodiment, the washing machine 600 includes:

[0120] The control module 620 is used to open the drain valve and control the washing tub to rotate at a target speed greater than the third speed after the washing tub has rotated at the third speed for a first preset time.

[0121] In one embodiment, the washing machine 600 includes:

[0122] Control module 620 is used to control the washing machine to enter the rinsing stage when the second eccentricity value is greater than the second preset eccentricity value;

[0123] The control module 620 is used to enter the spin-drying stage after the rinsing stage is completed, and then return to the steps of lowering the water level of the washing tub to the second water level and closing the drain valve.

[0124] In one embodiment, the washing machine 600 includes:

[0125] The processing module is used to increase the number of times the second eccentricity value is greater than the second preset eccentricity value when the second eccentricity value is greater than the second preset eccentricity value.

[0126] The control module 620 is used to control the washing machine to enter the rinsing stage when the first increase in the number of times does not reach the first preset number of times.

[0127] In one embodiment, the washing machine 600 includes:

[0128] The output module is used to stop washing clothes and output an alarm message when the first number of times the washing cycle is increased reaches the first preset number of times.

[0129] In one embodiment, the washing machine 600 includes:

[0130] Control module 620 is used to control the washing tub to rotate continuously for a second preset time according to a set rotation-stop ratio when the first eccentricity value is greater than the first preset eccentricity value;

[0131] The execution module is used to return the steps of executing the control of the washing tub to rotate at the first speed.

[0132] In one embodiment, the washing machine 600 includes:

[0133] The processing module is used to increase the number of times the washing tub rotates according to the set rotation-stop ratio when the first eccentricity value is greater than the first preset eccentricity value.

[0134] The control module 620 is used to control the washing tub to continue rotating for a second preset time according to the set rotation-stop ratio when the increased second number of times does not reach the second preset number of times.

[0135] In one embodiment, the washing machine 600 includes:

[0136] Control module 620 is used to control the washing machine to enter the rinsing stage when the increased second number reaches the second preset number;

[0137] The execution module is used to return to the step of opening the drain valve of the washing machine tub when the washing machine enters the spin-drying stage.

[0138] In one embodiment, the washing machine 600 includes:

[0139] The processing module is used to increase the number of times the washing machine enters the rinsing stage to the third time when the second number of times reaches the second preset number of times;

[0140] The control module 620 is used to control the washing machine to enter the rinsing stage if the third increase in the number of cycles does not reach the third preset number.

[0141] In one embodiment, the washing machine 600 includes:

[0142] The output module is used to stop washing clothes and output an alarm message when the third preset number of increments is reached.

[0143] Figure 7 This is a schematic diagram of the hardware structure of a washing machine according to an exemplary embodiment.

[0144] The washing machine 700 may include a processor 71, such as a CPU, a memory 72, and a transceiver 73. Those skilled in the art will understand that... Figure 7 The structure shown does not constitute a limitation on the washing machine and may include more or fewer components than illustrated, or combine certain components, or have different component arrangements. The memory 72 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0145] The processor 71 can call the computer program stored in the memory 72 to complete all or part of the steps of the washing machine control method described above.

[0146] Transceiver 73 is used to receive information sent by external devices and to send information to external devices.

[0147] A non-transitory computer-readable storage medium, wherein instructions in the storage medium, when executed by a processor of a washing machine, enable the washing machine to perform the aforementioned washing machine control method.

[0148] A computer program product includes a computer program that, when executed by the processor of a washing machine, enables the washing machine to perform the aforementioned washing machine control method.

[0149] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0150] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A control method for a washing machine, characterized in that, include: When the washing machine enters the spin-drying stage, the weight of the dry cloth of the clothes stored in the washing machine is obtained, and the first water level and the first rotation speed corresponding to the weight of the dry cloth are determined. When the washing machine receives a washing command, the weight detected by the weight sensor of the washing machine is saved as the weight of the dry cloth. Open the drain valve of the washing machine tub; When the water level in the washing tub is lowered to the first water level, the drain valve is closed, and the washing tub is controlled to rotate at the first rotation speed. The first eccentricity value of the garment at the first rotation speed is detected. The first eccentricity value is used to represent the distance of the garment from the center of the washing tub. The first eccentricity value and the distance are positively correlated. When the first eccentricity value is less than or equal to the first preset eccentricity value, the drain valve is opened and the first rotation speed is increased, including: when the first eccentricity value is less than or equal to the first preset eccentricity value, controlling the washing machine to stop rotating and opening the drain valve; lowering the water level of the washing tub to a second water level and closing the drain valve, and controlling the washing tub to rotate at a second rotation speed, the second rotation speed being greater than the first rotation speed; detecting the second eccentricity value of the clothes at the second rotation speed; when the second eccentricity value is less than or equal to the second preset eccentricity value, controlling the washing tub to rotate at a third rotation speed, wherein the second rotation speed and the third rotation speed constitute a rotation speed resonance zone; after the washing tub rotates at the third rotation speed for a first preset time, opening the drain valve and controlling the washing tub to rotate at a target rotation speed, the target rotation speed being greater than the third rotation speed.

2. The control method for a washing machine according to claim 1, characterized in that, After the step of detecting the second eccentricity value of the garment at the second rotational speed, the method further includes: When the second eccentricity value is greater than the second preset eccentricity value, the washing machine is controlled to enter the rinsing stage; After the rinsing stage is completed, the spin-drying stage begins, and the process returns to the steps of lowering the water level in the washing tub to the second water level and closing the drain valve.

3. The control method for a washing machine according to claim 2, characterized in that, The step of controlling the washing machine to enter the rinsing stage when the second eccentricity value is greater than the second preset eccentricity value includes: When the second eccentricity value is greater than the second preset eccentricity value, increase the first number of times the second eccentricity value is greater than the second preset eccentricity value; If the first number of increases does not reach the first preset number, the washing machine is controlled to enter the rinsing stage.

4. The control method for a washing machine according to claim 3, characterized in that, After the step of increasing the second eccentricity value by a first number of times greater than the second preset eccentricity value, the method further includes: When the first number of times is increased reaches a first preset number, the washing of the clothes is stopped and an alarm message is output.

5. The control method for a washing machine according to claim 1, characterized in that, After the step of detecting the first eccentricity value of the clothing at the first rotational speed, the method further includes: When the first eccentricity value is greater than the first preset eccentricity value, the washing tub is controlled to rotate continuously for a second preset time according to the set rotation-stop ratio; Return to the step of controlling the washing tub to rotate at the first rotation speed.

6. The control method for a washing machine according to claim 5, characterized in that, The step of controlling the washing tub to continuously rotate for a second preset time according to a set rotation-stop ratio when the first eccentricity value is greater than the first preset eccentricity value includes: When the first eccentricity value is greater than the first preset eccentricity value, the second number of rotations of the washing tub according to the set rotation-stop ratio is increased; If the second number of increases does not reach the second preset number, the washing tub is controlled to continue rotating for a second preset time according to the set rotation-stop ratio.

7. The control method for a washing machine according to claim 6, characterized in that, After the step of increasing the second number of rotations of the washing tub according to the set rotation-stop ratio, the method further includes: When the second number of increases reaches the second preset number, the washing machine is controlled to enter the rinsing stage; When the washing machine enters the spin-drying stage, return to the step of opening the drain valve of the washing tub of the washing machine.

8. The control method for a washing machine according to claim 7, characterized in that, The step of controlling the washing machine to enter the rinsing stage when the second number of increases reaches a second preset number includes: When the second number of increases reaches the second preset number, the third number of times the washing machine enters the rinsing stage is increased; If the third increase in the number of cycles does not reach the third preset number, the washing machine is controlled to enter the rinsing stage.

9. The control method for a washing machine according to claim 8, characterized in that, After the step of increasing the number of times the washing machine enters the rinsing stage for the third time, it also includes: When the third preset number of times is reached, the washing of the clothes is stopped and an alarm message is output.

10. The control method for a washing machine according to any one of claims 1-9, characterized in that, The first preset eccentricity value is the maximum eccentricity value under normal motor startup, and the motor is used to drive the washing tub to rotate.

11. A washing machine, characterized in that, include: The acquisition module is used to acquire the stored dry fabric weight of the clothes in the washing machine when the washing machine enters the spin-drying stage, and determine the first water level and first rotation speed corresponding to the dry fabric weight. When the washing machine receives a washing command, the weight detected by the weight sensor of the washing machine is saved as the dry fabric weight. A control module for opening the drain valve of the washing tub of the washing machine; The control module is also used to close the drain valve and control the washing tub to rotate at the first rotation speed when the water level of the washing tub is lowered to the first water level. The control module is also used to detect the first eccentricity value of the clothes at the first rotation speed. The first eccentricity value is used to represent the distance of the clothes from the center of the washing tub. The first eccentricity value and the distance are positively correlated. The control module is also used to open the drain valve and increase the first rotational speed when the first eccentricity value is less than or equal to the first preset eccentricity value; The control module is further specifically configured to: control the washing machine to stop rotating and open the drain valve when the first eccentricity value is less than or equal to the first preset eccentricity value; lower the water level of the washing tub to the second water level and close the drain valve, and control the washing tub to rotate at a second rotation speed, the second rotation speed being greater than the first rotation speed; detect the second eccentricity value of the clothes at the second rotation speed; control the washing tub to rotate at a third rotation speed when the second eccentricity value is less than or equal to the second preset eccentricity value, wherein the second rotation speed and the third rotation speed constitute a rotation speed resonance zone; and after the washing tub rotates at the third rotation speed for a first preset time, open the drain valve and control the washing tub to rotate at a target rotation speed, the target rotation speed being greater than the third rotation speed.

12. A washing machine, characterized in that, include: Memory and processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the control method of the washing machine as described in any one of claims 1 to 10.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the control method of the washing machine as described in any one of claims 1 to 10.

14. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the control method of the washing machine according to any one of claims 1 to 10.

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