Washing machine dehydration control method, control device and washing machine

Abstract

The present invention relates to a dehydration control method, control device, and washing machine for a washing machine. The dehydration control method includes: obtaining the sound intensity and vibration value of the clothes processing tub during the dehydration process in which the clothes processing tub is controlled to increase its speed according to an initially set target speed; determining the speed increase progress of the clothes processing tub in the current speed increase phase based on the sound intensity and vibration value, and determining the set target speed for the clothes processing tub to enter the next speed increase phase. The present invention adjusts the dehydration speed increase strategy by detecting the sound intensity and vibration value during the clothes processing tub speed increase process. When the washing machine operates according to the adjusted speed increase strategy, it can effectively reduce noise during the dehydration process while also effectively improving the dehydration effect and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and in particular to a dehydration control method and control device of a washing machine, and a washing machine. Background Art

[0002] Washing machines require shaking out clothes before spinning to ensure the eccentricity of the tub meets the spin conditions. However, some clothes are difficult to shake out, or changes in the state of the clothes during the spin cycle can cause significant changes in the eccentricity of the tub, resulting in loud noise during the spin cycle. Summary of the Invention

[0003] In order to overcome the problems in the related art that clothes are difficult to shake loose or the clothes state changes during the speed increase process, resulting in loud noise during the dehydration process, the first aspect of the present invention provides a dehydration control method for a washing machine, the dehydration control method comprising:

[0004] During a dehydration process in which the speed of the laundry processing tub is increased according to an initially set target speed, obtaining a sound intensity and a vibration value during the speed-up operation of the laundry processing tub;

[0005] The speed-up process of the laundry processing tub in the current speed-up phase is determined according to the sound intensity and the vibration value, and a set target speed for the laundry processing tub to enter the next speed-up phase is determined.

[0006] In some embodiments, the dehydration process of the clothes treatment tub includes N speed-up stages performed sequentially, where N≥2, and the dehydration control method includes:

[0007] In the first speed-up stage, the initially set target speed is determined based on the result of the eccentric weighing test before the dehydration process;

[0008] In the nth speed-up stage, the initially set target speed is determined according to the sound intensity and vibration value of the laundry processing tub during the speed-up operation in the previous speed-up stage, where n≤N-1.

[0009] In some embodiments, in the first speed-up stage, determining the speed-up progress of the laundry processing tub in the current speed-up stage according to the sound intensity and the vibration value, and determining a set target speed for the laundry processing tub to enter the next speed-up stage, includes:

[0010] Determine the magnitude of the first sound intensity of the laundry processing tub in the first speed-up phase and the set sound intensity;

[0011] When the first sound intensity is greater than the set sound intensity for a continuous preset time period, the clothes processing tub is decelerated to a first set speed, and then a first eccentricity weighing test is performed. A set target speed for the next speed-up stage is determined based on the result of the first eccentricity weighing test and a first vibration value corresponding to the maximum speed before the speed reduction, and the clothes processing tub is controlled to enter the next speed-up stage.

[0012] When the first sound intensity is less than or equal to the set sound intensity, the set target speed of the next speed-up stage is determined to be the set target speed of the first speed-up stage, and the clothes processing tub is controlled to enter the next speed-up stage.

[0013] In some embodiments, determining the set target speed for the next speed-up stage based on the result of the first eccentricity weighing detection and the first vibration value corresponding to the maximum speed before speed reduction includes:

[0014] Determining the magnitude of the first vibration value and a set vibration value;

[0015] When the first vibration value is greater than the set vibration value, determining the set target speed for the next speed-up stage to be the first target speed, the first target speed being less than the speed corresponding to the result of the first eccentric weighing test;

[0016] When the first vibration value is less than or equal to the set vibration value, the set target speed of the next speed-up stage is determined to be the speed corresponding to the result of the first eccentric weighing detection.

[0017] In some embodiments, in the first speed-up stage, after the speed of the laundry processing tub is increased to an initial target speed, the sound intensity and vibration value of the laundry processing tub during the speed-up operation are obtained.

[0018] In some embodiments, in the nth speed-up stage, determining the speed-up progress of the laundry processing tub in the current speed-up stage according to the sound intensity and the vibration value, and determining a set target speed for the laundry processing tub to enter the next speed-up stage, includes:

[0019] determining a change trend of multiple second sound intensities continuously detected in the laundry treatment tub during an nth speed-up phase;

[0020] When the multiple second sound intensities show a decreasing trend, determining the set target speed for the (n+1)th speed-up stage as the second target speed, and determining the spin process for this speed-up stage based on the second vibration value of this speed-up stage, wherein the second target speed is greater than the set target speed for the nth speed-up stage and is less than or equal to the maximum spin speed;

[0021] When the multiple second sound intensities do not show a decreasing trend, the set target speed of the n+1th speed-up stage is determined to be the set target speed of the nth speed-up stage, and the clothes processing tub is controlled to enter the n+1th speed-up stage.

[0022] In some embodiments, determining the dehydration progress of the current speed-up stage according to the second vibration value of the current speed-up stage includes:

[0023] Determining the magnitude of the second vibration value and the set vibration value;

[0024] When the second vibration value is less than the set vibration value, controlling the laundry processing tub to enter the n+1th speed-up stage;

[0025] When the second vibration value is greater than or equal to the set vibration value, the laundry processing tub is controlled to slow down to a first set rotation speed and then a second eccentric weighing test is performed.

[0026] In some embodiments, the dehydration control method further comprises:

[0027] When the laundry processing tub is in a speed-up phase of speeding up to a maximum target speed, the laundry processing tub is controlled to slow down to a first set speed and a second eccentric weighing detection is performed.

[0028] In some embodiments, after the laundry processing tub is decelerated to a first set speed and a second eccentric weighing test is performed, the control method includes:

[0029] Determining, based on the result of the second eccentric weighing test, the difference between the current weighing value of the laundry treatment tub and the initial weighing value of the laundry treatment tub before dehydration and a set difference;

[0030] If the difference between the current weighing value and the initial weighing value is greater than the set difference, the dehydration ends.

[0031] In some embodiments, if the difference between the current weighing value and the initial weighing value is less than or equal to the set difference, the speed corresponding to the result of the second eccentric weighing detection is used as the initial set target speed for the first speed-up stage in the next dehydration process, and the next dehydration process is entered.

[0032] The second aspect of the present invention proposes a control device, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement any one of the dehydration control methods for the washing machine proposed in the first aspect of the present invention.

[0033] A third aspect of the present invention provides a washing machine, which operates according to any one of the washing machine dehydration control methods provided in the first aspect of the present invention, or includes the control device provided in the second aspect of the present invention.

[0034] The technical solution of the present invention may include the following beneficial effects: According to the dehydration control method of the present invention, the dehydration speed-up strategy is adjusted by detecting the sound intensity and vibration value during the speed-up process of the clothing processing barrel. After the washing machine operates according to the adjusted speed-up strategy, it can effectively reduce the noise during the dehydration process, and at the same time effectively improve the dehydration effect and dehydration efficiency.

[0035] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0037] Figure 1 The control flow of a washing machine according to an exemplary embodiment is shown as follows Figure 1 .

[0038] Figure 2 The control flow of a washing machine according to an exemplary embodiment is shown as follows Figure 2 .

[0039] Figure 3 A control flow chart of a washing machine according to an exemplary embodiment Figure 3 .

[0040] Figure 4 is a control flow chart of a washing machine according to a specific example. DETAILED DESCRIPTION

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0042] Figure 1 This is a control flow chart of a dehydration control method for a washing machine according to an exemplary embodiment. Figure 1 , refer to Figure 1 , the dehydration control method comprises the following steps:

[0043] S11. During a dehydration process in which the speed of the laundry processing tub is increased according to an initially set target speed, obtaining a sound intensity and a vibration value during the speed increase of the laundry processing tub;

[0044] S12: determining the speed-up progress of the laundry processing tub in the current speed-up phase according to the sound intensity and the vibration value, and determining a set target speed for the laundry processing tub to enter the next speed-up phase.

[0045] In this embodiment, before the washing machine enters the dehydration process, it is first determined whether the washing machine meets the dehydration conditions. The washing machine is allowed to enter the dehydration process only if the dehydration conditions are met. If the washing machine does not meet the dehydration conditions, the washing machine needs to perform a treatment process such as shaking until the washing machine meets the dehydration conditions. In one example, before the washing machine enters the dehydration process, an initial eccentricity weighing test is first performed. In the initial eccentricity weighing test, the initial weight value and initial eccentricity value of the clothing processing tub are first obtained. Then, whether the dehydration conditions are met is determined based on whether the initial eccentricity value meets the eccentricity limit corresponding to the current initial weight value. If the initial eccentricity value is less than or equal to the eccentricity limit corresponding to the current initial weight value, it is determined that the washing machine meets the dehydration conditions. If the initial eccentricity value is greater than the eccentricity limit corresponding to the current initial weight value, it is determined that the washing machine does not meet the dehydration conditions.

[0046] The washing machine is equipped with a sound intensity detection device and a vibration sensor. The sound intensity detection device is, for example, a decibel meter. During the speed-up operation of the laundry tub, the sound intensity and vibration values ​​of the laundry tub can be obtained in real time or at set intervals. The sound intensity can be the real-time detection value of the sound intensity detection device or the average of multiple detection values ​​within a set time period. Similarly, the vibration value can be the real-time detection value of the vibration sensor or the average of multiple detection values ​​within a set time period. In one example, the dehydration process of the laundry tub includes N sequential speed-up stages, where N ≥ 2. The dehydration control method includes: in the first speed-up stage, the initial target speed is determined based on the results of the eccentricity weighing test before the dehydration process. For example, the control device of the washing machine stores a mapping table between weight value, eccentricity value, and dehydration speed. After determining the results of the initial eccentricity weighing test, the initial target speed of the laundry tub in the first speed-up stage can be determined by looking up the table. In the nth speed-up stage, n is less than or equal to N, and the initially set target speed is determined based on the sound intensity and vibration value of the clothes processing tub during the speed-up operation in the previous speed-up stage.

[0047] In this embodiment, the sound intensity and vibration value reflect the distribution of the laundry within the laundry treatment tub. For example, when the first sound intensity is high, it indicates that the laundry treatment tub is making a lot of noise during the speed-up operation. This noise may be caused by a change in the distribution of the laundry within the laundry treatment tub during the speed-up operation, resulting in a change in the eccentricity of the laundry treatment tub, which in turn causes the drum-banging noise. If the sound intensity is high during the speed-up operation, further analysis of the vibration value is needed to determine whether the increased noise from the laundry treatment device is caused by a change in the eccentricity of the laundry due to a change in the laundry state.

[0048] This embodiment adjusts the dehydration speed-up strategy by detecting the sound intensity and vibration value during the speed-up process of the clothes processing tub. When the washing machine operates according to the adjusted speed-up strategy, it can effectively reduce the noise during the dehydration process, while also effectively improving the dehydration effect and efficiency.

[0049] Figure 2 This is a control flow chart of a dehydration control method for a washing machine according to an exemplary embodiment. Figure 2 , refer to Figure 2 In the first speed-up phase, determining the speed-up progress of the laundry processing tub in this speed-up phase according to the sound intensity and the vibration value, and determining the set target speed of the laundry processing tub for entering the next speed-up phase, includes the following steps:

[0050] S21, determining the difference between the first sound intensity of the laundry processing tub in the first speed-up phase and the set sound intensity;

[0051] S22: When the first sound intensity is greater than the set sound intensity for a continuous preset time period, the laundry processing tub is decelerated to the first set speed, and then a first eccentricity weighing test is performed. A set target speed for the next speed-up stage is determined based on the result of the first eccentricity weighing test and a first vibration value corresponding to the maximum speed before the speed reduction, and the laundry processing tub is controlled to enter the next speed-up stage.

[0052] S23: When the first sound intensity is less than or equal to the set sound intensity, the set target speed of the next speed-up stage is determined to be the set target speed of the first speed-up stage, and the clothes processing tub is controlled to enter the next speed-up stage.

[0053] In this embodiment, after determining a first sound intensity during the speed-up operation of the laundry tub, the first sound intensity is compared with a set sound intensity, which is the maximum sound intensity at which the washing machine is deemed capable of continuing the speed-up operation. If the first sound intensity is greater than the set sound intensity, this indicates that the distribution of the laundry within the laundry tub may have changed, thereby causing a change in the eccentricity of the laundry tub. Therefore, the laundry tub is decelerated to a first set speed and then a first eccentricity weighing test is performed. The first eccentricity weighing test re-measures the weight and eccentricity of the laundry tub. A table lookup is performed to determine the spin speed corresponding to the result of the first eccentricity weighing test. The spin speed for the next speed-up stage is then determined by combining the result with a first vibration value corresponding to the maximum speed before the deceleration. After determining the preset target speed for the next speed-up stage, the laundry tub is controlled to enter the next speed-up stage according to the determined preset target speed.

[0054] If the first sound intensity is less than or equal to the set sound intensity, the laundry condition within the laundry tub has not changed, and the eccentricity of the laundry tub remains essentially unchanged. In this case, the target speed for the next acceleration phase can be determined to be the target speed for the first acceleration phase. To improve the accuracy of determining the distribution of laundry within the laundry tub, if the first sound intensity is greater than the set sound intensity and persists for a set duration, the laundry tub is then controlled to slow down to the first set speed and then a first eccentricity weighing test is performed. The set duration is, for example, 5 seconds.

[0055] In one example, the step of determining the set target speed for the next speed-up stage based on the result of the first eccentric weighing test and the first vibration value corresponding to the maximum speed before deceleration includes: determining the magnitude of the first vibration value and the set vibration value, and when the first vibration value is greater than the set vibration value, determining the set target speed for the next speed-up stage to be the first target speed, and the first target speed is less than the speed corresponding to the result of the first eccentric weighing test; when the first vibration value is less than or equal to the set vibration value, determining the set target speed for the next speed-up stage to be the speed corresponding to the result of the first eccentric weighing test.

[0056] In this embodiment, after the laundry processing tub is decelerated to a first set speed and a first eccentricity weighing test is performed, the first eccentricity weighing test result can be used to determine a first target speed corresponding to the current first eccentricity weighing test result. Before the next speed-up phase is initiated, the magnitude of the first vibration value corresponding to the maximum speed before the deceleration and the set vibration value must be determined. If the first vibration value is greater than the set vibration value, indicating that the eccentricity has changed due to a change in the laundry state during the first speed-up phase, the preset target speed for the next speed-up phase is determined to be the first target speed. Exemplarily, the preset target speed for the next speed-up phase is a set value reduced by the result of the first eccentricity weighing test. The set vibration value is an empirical value, exemplarily 0.2 mm. In one implementation, the set vibration value is dependent on the material of the laundry, and different set vibration values ​​are established based on the laundry material. For example, if the first target speed defined by the first eccentricity weighing test result is 1000 rpm, and the first vibration value corresponding to the maximum speed before the deceleration is greater than 0.2 mm, the set target speed for the next speed-up phase is 900 rpm, and the laundry processing tub is controlled to enter the next speed-up phase at this target speed.

[0057] In this embodiment, after the clothes processing tub enters the first speed-up stage, the step of obtaining the sound intensity and vibration value of the clothes processing tub can be directly entered, or the step of obtaining the sound intensity and vibration value of the clothes processing tub can be entered after the clothes processing tub is controlled to speed up to the initial target speed. The initial target speed is greater than or equal to the first set speed when performing the eccentric weighing test. For example, the initial target speed is 400 rpm. This is because the sound intensity and vibration value generated by the washing machine are relatively small before the clothes processing tub speeds up to the initial target speed. The sound intensity and vibration value detected after reaching the initial target speed have little significance for the regulation of the dehydration process. Therefore, after controlling the clothes processing tub to speed up to the initial target speed, the step of obtaining the sound intensity and vibration value of the clothes processing tub during the speed-up operation can effectively reduce the number of detection times of the sound intensity and vibration values ​​and the number of operations of the control device, thereby improving the regulation efficiency.

[0058] Figure 3 This is a control flow chart of a dehydration control method for a washing machine according to an exemplary embodiment. Figure 3 , refer to Figure 3 In the nth speed-up stage, where n≤N-1, the steps of determining the speed-up progress of the laundry processing tub in the current speed-up stage according to the sound intensity and the vibration value, and determining the set target speed for the laundry processing tub to enter the next speed-up stage include:

[0059] S31, determining a change trend of multiple second sound intensities continuously detected in the laundry processing tub during the nth speed-up phase;

[0060] S32. When the multiple second sound intensities show a decreasing trend, determining the set target speed for the (n+1)th speed-up stage as the second target speed, and determining the spin process for this speed-up stage based on the second vibration value of this speed-up stage, wherein the second target speed is greater than the set target speed for the (n)th speed-up stage and is less than or equal to the maximum spin speed;

[0061] S33. When the multiple second sound intensities do not show a decreasing trend, determine the set target speed of the n+1th speed-up stage as the set target speed of the nth speed-up stage, and control the clothes processing tub to enter the n+1th speed-up stage.

[0062] In this embodiment, during the nth speed-up stage, the distribution of clothing in the laundry tub may change. In this case, it is necessary to further determine whether the noise level of the laundry tub during the speed-up operation has improved based on the acquired sound intensities and vibration values. The speed-up progress of this speed-up stage and the preset target speed for the n+1th speed-up stage are re-determined based on the comparison results. During the nth speed-up stage, the second sound intensities and second vibration values ​​of the laundry tub are continuously monitored. If the multiple second sound intensities show a decreasing trend, it indicates that the noise level of the laundry tub during the nth speed-up stage has been effectively improved. In this case, the spin speed of this speed-up stage can be determined based on the second vibration values. The second target speed is greater than the set target speed for the nth speed-up stage and less than or equal to the maximum spin speed. If the multiple second sound intensities do not show a decreasing trend, it indicates that the noise level of the laundry tub during the speed-up operation has not been effectively improved. In this case, the set target speed for the n+1th speed-up stage is determined to be the set target speed for the nth speed-up stage, and the laundry tub is controlled to enter the n+1th speed-up stage.

[0063] It should be noted that the definition of a decreasing trend in the second sound intensity as defined in this embodiment does not necessarily mean that the multiple second sound intensities must decrease sequentially. It is sufficient that the changing trend of the multiple second sound intensities is decreasing. That is, among the multiple second sound intensities, the second sound intensity of two consecutive detections may be slightly higher than the second sound intensity of the previous detection. However, as long as the overall trend of the multiple second sound intensities is decreasing, it is sufficient. Furthermore, the definition of a non-decreasing trend in the second sound intensities as defined in this embodiment means that the multiple second sound intensities are increasing, or that the changing trend of the multiple second sound intensities is irregular.

[0064] In one example, the dehydration process of this speed-up stage is determined according to the second vibration value of this speed-up stage, including: determining the magnitude of the second vibration value and the set vibration value; when the second vibration value is less than the set vibration value, controlling the clothing processing barrel to enter the n+1th speed-up stage; when the second vibration value is greater than or equal to the set vibration value, controlling the clothing processing barrel to slow down to the first set speed and then perform a second eccentric weighing test.

[0065] In this embodiment, when it is determined that the multiple second sound intensities in the nth speed-up stage show a decreasing trend, it is necessary to further determine, based on the second vibration value of the clothing processing tub, whether the clothing processing tub is running and being accelerated to the set target speed based on the current vibration value. When the second vibration value is less than the set vibration value, it indicates that the state of the clothes has not changed, and the noise level will not increase when the clothing processing tub is accelerated to the preset target speed. In this case, the clothing processing tub is controlled to enter the n+1th speed-up stage. When the second vibration value is greater than or equal to the set vibration value, it indicates that the state of the clothes has changed, and the noise level will increase when the clothing processing tub is accelerated to the preset target speed. In this case, the clothing processing tub is controlled to decelerate to the first set speed and then perform a second eccentric weighing test. When the clothing processing tub is in the speed-up stage of accelerating to the maximum target speed, the clothing processing tub is controlled to decelerate to the first set speed and then perform a second eccentric weighing test.

[0066] It should be noted that in this embodiment, the second vibration value of the laundry processing tub is monitored in real time, and the dehydration process is adjusted in real time based on the real-time comparison result of the second vibration value with the set vibration value. In other words, the laundry processing tub will continue to increase its speed until it reaches the target speed only when the second vibration value is continuously less than the set vibration value. When it is detected that the second vibration value is greater than or equal to the set vibration value, the laundry processing tub is controlled to decrease its speed the first time the second vibration value is greater than or equal to the set vibration value.

[0067] In this embodiment, after the laundry processing tub is accelerated to the maximum target speed or after the laundry processing tub is decelerated to the first set speed and the second eccentric weighing test is performed, it is necessary to determine the dehydration effect of the laundry, and determine whether to continue the dehydration process based on the determined dehydration effect of the laundry. Specifically, the laundry processing tub is controlled to decelerate to the first set speed of the second eccentric weighing test, and the second eccentric weighing test is performed at the first set speed. The current weighing value of the laundry processing tub can be determined based on the result of the second eccentric weighing test. After the current weighing value is determined based on the second eccentric weighing test, the difference between the initial weight value before entering the dehydration process and the current weighing value is compared with the set difference value. If the difference between the initial weight value and the current weighing value is greater than the set difference, it indicates that the water content in the laundry is low, and continuing the dehydration process will not further reduce the moisture content in the laundry and may also damage the laundry. At this time, the dehydration process can be terminated. When the difference between the initial weight value and the current weighing value is less than or equal to the set difference, it means that the water content in the clothes is relatively high, and the dehydration process can be continued to further reduce the moisture in the clothes. Therefore, the dehydration process needs to be performed. At this time, the speed corresponding to the result of the second eccentric weighing test is used as the set target speed for the first speed-up stage in the next dehydration process, and the next dehydration process is entered to enable the clothes processing tub to reach the optimal dehydration state as soon as possible, thereby improving the dehydration efficiency.

[0068] In this embodiment, Figure 4 is a control flow chart of a washing machine according to a specific example, referring to Figure 4 , the dehydration control method of this embodiment includes:

[0069] S901, enter the dehydration process, enter S902;

[0070] S902, enter the eccentric weighing test, determine the initial weight value b1 according to the eccentric weighing test result, and enter S903;

[0071] S903, judging whether the eccentric weighing test result meets the dehydration condition, if the judgment result is yes, proceed to S904, if the judgment result is no, return to S902;

[0072] S904, controlling the speed of the laundry processing tub to increase to a second set speed, and proceeding to S905;

[0073] S905: Obtain the first sound intensity during the speed increase of the laundry processing tub, and proceed to S906;

[0074] S906: Determine whether the first sound intensity is greater than the set sound intensity and lasts for the set time. If yes, proceed to S907; if no, proceed to S908;

[0075] S907, decelerate to a first set speed and perform eccentric weighing detection to obtain a first vibration value corresponding to the maximum speed before deceleration, and proceed to S909;

[0076] S908, continue to increase the speed according to the target speed corresponding to the eccentric weighing test result, and enter S911;

[0077] S909, determine whether the first vibration value is greater than the set vibration value, if the judgment result is yes, go to S910, if the judgment result is no, go to S908;

[0078] S910, adjusting the target speed to be less than the target speed corresponding to the eccentric weighing test result, and increasing the speed again according to the adjusted target speed, and entering S911;

[0079] S911, obtaining multiple second sound intensities during the speed-up operation, and proceeding to S912;

[0080] S912: Determine whether the intensities of the plurality of second sounds are decreasing. If yes, proceed to S913; otherwise, proceed to S914.

[0081] S913, adjusting the target speed to the maximum spin speed, and proceeding to S915;

[0082] S914, maintaining the original target speed;

[0083] S915, obtaining the second vibration value of the speed-up operation, and proceeding to S916;

[0084] S916, determine whether the second vibration value is less than the set vibration value, if the judgment result is yes, proceed to S917, if the judgment result is no, proceed to S918;

[0085] S917, continue to increase the speed until the maximum dehydration speed is reached, and then enter S919;

[0086] S918, when the second vibration value reaches greater than or equal to the set vibration value for the first time, control the clothes processing tub to slow down and enter S919;

[0087] S919, decelerating to a first set speed, performing an eccentric weighing test, determining a first weight based on the eccentric weighing test, and proceeding to S92;

[0088] S920: Determine whether the difference between the initial weight and the first weight is greater than the set difference. If yes, dehydration ends. If no, return to S904.

[0089] According to an exemplary embodiment, this embodiment proposes a control device, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the dehydration control method of the washing machine proposed in any of the above embodiments.

[0090] According to an exemplary embodiment, this embodiment provides a washing machine, which operates according to the dehydration control method of the washing machine provided in any of the above-mentioned embodiments, or includes the control device provided in the above-mentioned embodiments.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0092] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0093] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0094] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0095] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0096] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0097] In addition, the functional units in the various embodiments of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into a module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0098] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A dehydration control method for a washing machine, characterized in that: The dehydration control method comprises: During a dehydration process in which the speed of the laundry processing tub is increased according to an initially set target speed, obtaining a sound intensity and a vibration value during the speed-up operation of the laundry processing tub; determining a speed-up process of the laundry processing tub in the current speed-up phase according to the sound intensity and the vibration value, and determining a set target speed for the laundry processing tub to enter the next speed-up phase; The dehydration process of the laundry treatment tub includes N speed-up stages performed sequentially, where N≥2. The dehydration control method includes: In the first speed-up stage, the initially set target speed is determined based on the result of the eccentric weighing test before the dehydration process; In the nth speed-up stage, the initially set target speed is determined according to the sound intensity and vibration value of the laundry processing tub during the speed-up operation in the previous speed-up stage, n≤N-1; In the first speed-up stage, determining the speed-up progress of the laundry processing tub in the current speed-up stage according to the sound intensity and the vibration value, and determining a set target speed for the laundry processing tub to enter the next speed-up stage, includes: Determine the magnitude of the first sound intensity of the laundry processing tub in the first speed-up phase and the set sound intensity; When the first sound intensity is greater than the set sound intensity for a continuous preset time period, the clothes processing tub is decelerated to a first set speed, and then a first eccentricity weighing test is performed. A set target speed for the next speed-up stage is determined based on the result of the first eccentricity weighing test and a first vibration value corresponding to the maximum speed before the speed reduction, and the clothes processing tub is controlled to enter the next speed-up stage. When the first sound intensity is less than or equal to the set sound intensity, determining the set target speed of the next speed-up stage to be the set target speed of the first speed-up stage, and controlling the laundry processing tub to enter the next speed-up stage; The step of determining the target speed for the next speed-up phase according to the result of the first eccentric weighing detection and the first vibration value corresponding to the maximum speed before speed reduction includes: Determining the magnitude of the first vibration value and a set vibration value; When the first vibration value is greater than the set vibration value, determining the set target speed for the next speed-up stage to be the first target speed, the first target speed being less than the speed corresponding to the result of the first eccentric weighing test; When the first vibration value is less than or equal to the set vibration value, the set target speed of the next speed-up stage is determined to be the speed corresponding to the result of the first eccentric weighing detection.

2. The dehydration control method of a washing machine according to claim 1, characterized in that: In the first speed-up stage, after the speed of the laundry processing tub is increased to the initial target speed, the sound intensity and vibration value of the laundry processing tub during the speed-up operation are obtained.

3. The dehydration control method of a washing machine according to claim 1, characterized in that: In the nth speed-up stage, determining the speed-up progress of the laundry processing tub in the current speed-up stage according to the sound intensity and the vibration value, and determining a set target speed for the laundry processing tub to enter the next speed-up stage, includes: determining a change trend of multiple second sound intensities continuously detected in the laundry treatment tub during an nth speed-up phase; When the multiple second sound intensities show a decreasing trend, determining the set target speed for the (n+1)th speed-up stage as the second target speed, and determining the spin process for this speed-up stage based on the second vibration value of this speed-up stage, wherein the second target speed is greater than the set target speed for the nth speed-up stage and is less than or equal to the maximum spin speed; When the multiple second sound intensities do not show a decreasing trend, the set target speed of the n+1th speed-up stage is determined to be the set target speed of the nth speed-up stage, and the clothes processing tub is controlled to enter the n+1th speed-up stage.

4. The dehydration control method of a washing machine according to claim 3, characterized in that: Determining the dehydration process of the current speed-up stage according to the second vibration value of the current speed-up stage includes: Determining the magnitude of the second vibration value and the set vibration value; When the second vibration value is less than the set vibration value, controlling the laundry processing tub to enter the n+1th speed-up stage; When the second vibration value is greater than or equal to the set vibration value, the laundry processing tub is controlled to slow down to a first set rotation speed and then a second eccentric weighing test is performed.

5. The dehydration control method of a washing machine according to claim 4, characterized in that: The dehydration control method further comprises: When the laundry processing tub is in a speed-up phase of speeding up to a maximum target speed, the laundry processing tub is controlled to slow down to a first set speed and a second eccentric weighing detection is performed.

6. The dehydration control method of a washing machine according to claim 5, characterized in that: After the laundry processing tub is decelerated to a first set speed and a second eccentric weighing test is performed, the control method includes: Determining, based on the result of the second eccentric weighing test, the difference between the current weighing value of the laundry treatment tub and the initial weighing value of the laundry treatment tub before dehydration and a set difference; If the difference between the current weighing value and the initial weighing value is greater than the set difference, the dehydration ends.

7. The dehydration control method of a washing machine according to claim 6, characterized in that: If the difference between the current weighing value and the initial weighing value is less than or equal to the set difference, the speed corresponding to the result of the second eccentric weighing detection is used as the initial set target speed for the first speed-up stage in the next dehydration process, and the next dehydration process is entered.

8. A control device, characterized in that: It includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the dehydration control method of the washing machine according to any one of claims 1 to 7.

9. A washing machine, characterized in that: The washing machine operates according to the dehydration control method of a washing machine according to any one of claims 1 to 7, or includes the control device according to claim 8.

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