Washing machine dehydration control method, control device and washing machine

Abstract

The embodiment of the present application discloses a dehydration control method, a control device and a washing machine of a washing machine. The dehydration control method includes: in the eccentricity adjustment cycle of the dehydration program, first executing the clothing stretching stage, the clothing stretching stage includes: controlling the inner drum to increase the speed step by step to a first speed; after the clothing stretching stage, if the eccentricity value of the inner drum does not meet the preset dehydration condition, entering the eccentricity adjustment stage; the eccentricity adjustment stage includes the first adjustment stage, the first adjustment stage includes: injecting water into the inner drum while the inner drum is rotating until the clothes in the inner drum reach the target water absorption state; after the eccentricity adjustment stage, if the eccentricity value of the inner drum still does not meet the preset dehydration condition, entering the next eccentricity adjustment cycle. The present application effectively controls and solves the problem of clothing eccentricity in the dehydration process of the washing machine, reduces the noise and machine damage caused by eccentricity, and achieves an efficient and stable dehydration effect.

Description

Technical Field

[0001] The present application relates to the 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] During the use of washing machines, poor dehydration effect is one of the common problems that bothers users and after-sales service, especially when the clothes are unevenly distributed in the dehydration drum, resulting in eccentricity of the dehydration drum, which may cause strong vibrations and even damage the machine, reducing the dehydration efficiency. The eccentricity phenomenon during dehydration of the washing machine is mainly caused by the uneven distribution of clothes in the drum. Common reasons include severe entanglement of clothes, uneven distribution of water content in clothes, or a small number of small items gathered at one point. At present, the dehydration control technology of washing machines mainly focuses on how to avoid the movement and noise of the drum caused by excessive eccentricity. The strategy of limiting the dehydration speed is often adopted to ensure the stable operation of the machine at the expense of dehydration performance. Summary of the invention

[0003] The embodiments of the present application provide a dehydration control method, a control device and a washing machine of a washing machine, so as to at least solve the technical problem that the related art reduces the eccentricity by limiting the dehydration speed but leads to a decrease in dehydration performance.

[0004] According to a first aspect of an embodiment of the present application, a dehydration control method for a washing machine is provided, the dehydration control method comprising:

[0005] In the eccentric adjustment cycle of the dehydration program, the clothing stretching stage is first performed, and the clothing stretching stage includes: controlling the inner drum to increase the speed step by step to a first speed;

[0006] After the clothing stretching stage, when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to be dehydrated to a dehydration speed, and when the eccentricity value of the inner drum does not meet the preset dehydration condition, the eccentricity adjustment stage is entered; the eccentricity adjustment stage includes a first adjustment stage, which includes: injecting water into the inner drum while the inner drum is rotating until the clothes in the inner drum reach a target water absorption state;

[0007] After the eccentricity adjustment stage, when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to increase to the dehydration speed for dehydration. When the eccentricity value of the inner drum still does not meet the preset dehydration condition, the next eccentricity adjustment cycle is entered.

[0008] This embodiment performs eccentricity detection after the clothes stretching stage in which the inner drum is controlled to increase the speed step by step to the first speed, ensuring that each piece of clothing can participate in dehydration in an ideal stretched state, thereby improving dehydration efficiency and dehydration effect. If the eccentricity value still does not meet the preset dehydration condition after the clothes stretching stage, the eccentricity adjustment stage is further performed, and the water absorption state of the clothes is adjusted in time by adding water into the inner drum, thereby solving the eccentricity caused by uneven moisture content of the clothes, and further improving the stability of the dehydration process and the dehydration effect.

[0009] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the clothing stretching stage includes a plurality of speed-increasing stages, the plurality of speed-increasing stages have respective corresponding accelerations and target speeds, and the controlling the inner drum to increase the speed step by step to a first speed includes:

[0010] The inner drum is controlled to sequentially execute a plurality of speed-up stages, and in each speed-up stage, the inner drum is controlled to increase the speed to a corresponding target speed at a corresponding acceleration, and after the inner drum reaches the target speed of the current speed-up stage and maintains the speed for a first time, the next speed-up stage is entered;

[0011] The target speed of the current speed-up stage is the initial speed of the next speed-up stage, and the target speed of the last speed-up stage is the first speed.

[0012] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the water absorption state of the clothes is controlled in the following manner:

[0013] Control the water absorption of clothes in the following ways:

[0014] When the outer cylinder is in a non-draining state, water is introduced into the inner cylinder;

[0015] Get the real-time water level frequency output by the water level sensor;

[0016] When the real-time water level frequency reaches the set water level frequency and the real-time water level frequency does not change after the water supply to the inner drum stops, it is determined that the water absorption state of the clothes reaches the target water absorption state;

[0017] Controlling the outer drum to drain water until the real-time water level frequency reaches the initial water level frequency;

[0018] The initial water level frequency is the water level frequency output by the water level sensor before the washing machine enters the dehydration program.

[0019] In combination with the first aspect, in an optional implementation of the embodiment of the present application, after the clothing stretching stage, when the eccentricity value of the inner drum does not meet the preset dehydration condition, the dehydration control method further includes:

[0020] After controlling the inner drum to slow down, the clothing stretching stage is performed again;

[0021] When the execution times of the clothes stretching stage reaches the set times and the eccentricity value of the inner drum still does not meet the preset dehydration condition, the eccentricity adjustment stage is entered;

[0022] Wherein: the dehydration speed is greater than the first speed.

[0023] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the eccentricity adjustment stage further includes a second adjustment stage, and the dehydration control method includes:

[0024] After the first adjustment stage, if the eccentricity value of the inner drum still does not meet the preset dehydration condition, the second adjustment stage is entered; the second adjustment stage includes: controlling the inner drum to reverse at a second speed and maintaining a second time length;

[0025] After the second adjustment stage, if the eccentricity value of the inner drum still does not meet the preset dehydration condition, the next eccentricity adjustment cycle is entered.

[0026] In combination with the first aspect, in an optional implementation of the embodiment of the present application, in the second adjustment stage, the magnitude of the acceleration of the inner drum in the reverse state is related to the eccentricity value after the first adjustment stage, and the greater the eccentricity value after the first adjustment stage, the smaller the acceleration of the inner drum in the reverse state; and / or,

[0027] The magnitude of the second rotation speed in the inner drum reversal state is related to the eccentricity value after the first adjustment stage, and the larger the eccentricity value after the first adjustment stage, the smaller the second rotation speed in the inner drum reversal state.

[0028] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the first speed is greater than or equal to the second speed;

[0029] And / or, the first rotational speed ranges from 50 rpm to 150 rpm, and the second rotational speed ranges from 50 rpm to 100 rpm.

[0030] In combination with the first aspect, in an optional implementation of the embodiment of the present application, when the number of executions of the eccentricity adjustment cycle is greater than a set number of times, the dehydration program is terminated.

[0031] According to the second aspect of an embodiment of the present application, a control device is proposed, which includes one or more processors and a non-temporary 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 by the first party of the embodiment of the present application.

[0032] According to the third aspect of the embodiments of the present application, a washing machine is proposed, which adopts the dehydration control method of the washing machine proposed in the first aspect of the embodiments of the present application, or includes the control device proposed in the second aspect of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is one of the dehydration flow charts of the washing machine provided in the embodiment of the present application.

[0034] Figure 2 This is the second dehydration flow chart of the washing machine provided in the embodiment of the present application.

[0035] Figure 3 It is a curve diagram of the inner drum speed change during one eccentricity adjustment cycle.

[0036] Figure 4 is a dehydration flow chart according to a specific example.

[0037] Figure 5 It is a system block diagram of the control device provided in an embodiment of the present application.

[0038] Figure 6 It is a structural block diagram of a washing machine provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0040] It should be understood that the "plurality" mentioned in this article refers to two or more. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second" and so on are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first", "second" and so on do not limit the quantity and execution order, and the words "first", "second" and so on do not limit certain different

[0041] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0042] In the related art, a strategy of limiting the dehydration speed is often adopted to solve the problems of drum movement and noise caused by excessive eccentricity of the inner drum, but this method often leads to a decrease in dehydration performance and a reduced dehydration effect.

[0043] In order to solve the above technical problems, this embodiment proposes a dehydration control method for a washing machine, and the dehydration control method includes:

[0044] In the eccentric adjustment cycle of the dehydration program, the clothing stretching stage is first performed, and the clothing stretching stage includes: controlling the inner drum to increase the speed step by step to a first speed;

[0045] After the clothes stretching stage, when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to be dehydrated to the preset dehydration speed, and when the eccentricity value of the inner drum does not meet the preset dehydration condition, the eccentricity adjustment stage is entered; the eccentricity adjustment stage includes a first adjustment stage, which includes: injecting water into the inner drum while the inner drum is rotating until the clothes in the inner drum reach the target water absorption state;

[0046] After the eccentricity adjustment stage, when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to the preset dehydration speed for dehydration. When the eccentricity value of the inner drum still does not meet the preset dehydration condition, the next eccentricity adjustment cycle is entered.

[0047] This embodiment performs eccentricity detection after the clothes stretching stage in which the inner drum is controlled to increase the speed step by step to the first speed, ensuring that each piece of clothing can participate in dehydration in an ideal stretched state, thereby improving dehydration efficiency and dehydration effect. If the eccentricity value still does not meet the preset dehydration condition after the clothes stretching stage, the eccentricity adjustment stage is further performed, and the water absorption state of the clothes is adjusted in time by adding water into the inner drum, thereby solving the eccentricity caused by uneven moisture content of the clothes, and further improving the stability of the dehydration process and the dehydration effect.

[0048] Further optionally, the eccentricity adjustment stage further includes a second adjustment stage, and the dehydration control method includes:

[0049] After the first adjustment stage, when the eccentricity value of the inner drum still does not meet the preset dehydration condition, the second adjustment stage is entered; the second adjustment stage includes: controlling the inner drum to reverse at a second speed and maintaining it for a second time.

[0050] This embodiment releases the entanglement of clothes by controlling the inner drum to reverse when the eccentricity value still does not meet the preset dehydration conditions after the first adjustment stage, thereby effectively solving the eccentricity problem caused by the entanglement of clothes and improving the controllability of the dehydration process and optimizing the dehydration effect.

[0051] The technical solution of this embodiment is described in detail below in conjunction with the accompanying drawings. The following embodiments and examples can be combined with each other if there is no conflict.

[0052] First, the execution body of the dehydration control method of the washing machine of this embodiment is briefly introduced.

[0053] The execution subject of the dehydration control method of this embodiment is a washing machine, which can be a drum type washing machine or a pulsator type washing machine. The washing machine includes a housing, an outer drum and an inner drum, the outer drum is arranged in the housing, and the inner drum is rotatably arranged in the outer drum. A drain port is provided at the bottom of the outer drum, and the drain port is connected to a drain device, which can drain the water in the outer drum out of the washing machine. A water hole is provided on the wall of the inner drum, and the water entering the outer drum can flow between the inner drum and the outer drum through the water hole.

[0054] When the washing machine runs the dehydration program, the inner drum speed is controlled to the dehydration speed when the eccentricity value of the inner drum meets the dehydration conditions. The water in the clothes is removed from the clothes under the action of the centrifugal force generated by the high-speed rotating inner drum, and discharged into the outer drum through the water holes. The water entering the outer drum is discharged from the washing machine by the drainage device.

[0055] The dehydration control method of this embodiment is introduced in detail below.

[0056] According to an exemplary implementation, this embodiment proposes a dehydration control method for a washing machine, referring to Figure 1 The dehydration control method comprises the following steps:

[0057] S11. In the eccentric adjustment cycle of the dehydration program, the clothes stretching stage is first performed, and the clothes stretching stage includes: controlling the inner drum to increase the speed step by step to a first speed.

[0058] Specifically, when the washing machine executes the dehydration program, it first enters the eccentricity adjustment cycle. The eccentricity adjustment cycle is used to adjust the eccentricity value of the inner drum to meet the dehydration conditions, so that after the eccentricity value of the inner drum meets the dehydration conditions, the speed of the inner drum can be increased to a preset dehydration speed for dehydration. After entering the eccentricity adjustment cycle, the clothing stretching stage must be executed first. In the clothing stretching stage, the inner drum is controlled to increase in speed step by step to the first speed. During this process, the clothes are kept in a rolling state in the inner drum, so that the clothes are stretched out in the inner drum, ensuring that each piece of clothing can participate in dehydration in an ideal stretched state, laying the foundation for the uniform distribution of clothes in the subsequent high-speed dehydration process, and improving the dehydration efficiency and dehydration effect. The first speed is less than or equal to the eccentricity detection speed when the eccentricity of the inner drum is detected. Preferably, the first speed is the eccentricity detection speed.

[0059] S12. After the clothes stretching stage, when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to be dehydrated to a preset dehydration speed; when the eccentricity value of the inner drum does not meet the preset dehydration condition, the eccentricity adjustment stage is entered; the eccentricity adjustment stage includes a first adjustment stage, which includes: injecting water into the inner drum while the inner drum is rotating until the clothes in the inner drum reach a target water absorption state.

[0060] Specifically, after the clothes stretching stage, the inner drum is tested for eccentricity. For example, the inner drum is tested for eccentricity when it is at the eccentricity detection speed to determine whether the preset dehydration condition is met. Preferably, the eccentricity detection speed is the first speed. When the inner drum eccentricity value OOB is less than or equal to the set eccentricity value, it is considered that the preset dehydration condition is met. At this time, the inner drum speed can be controlled to the preset dehydration speed for dehydration. The preset dehydration speed is greater than the first speed.

[0061] When the eccentricity value of the inner drum does not meet the preset dehydration conditions, it means that the eccentricity value of the inner drum is large. If the speed is directly increased to the preset dehydration speed, a drum collision will occur. At this time, the eccentricity value of the inner drum does not meet the preset dehydration conditions. Therefore, it is necessary to enter the eccentricity adjustment stage to further adjust the eccentricity of the inner drum.

[0062] Among them, the eccentricity adjustment stage includes a first adjustment stage, and the first adjustment stage includes, when the inner drum is rotating, water is added to the inner drum, preferably, when the inner drum is at a first rotation speed, water is added to the inner drum. In this process, the water addition method of the inner drum can be to use a water inlet valve or a spray valve, preferably, a spray valve is used to spray water into the inner drum, so that the state of the clothes can be adjusted more delicately. After the water is added to the inner drum, the clothes in the inner drum will absorb water. When the clothes in the inner drum reach the target water absorption state, the water addition to the inner drum is stopped. In this process, the clothes in the inner drum are redistributed in the water content state to solve the eccentricity problem caused by uneven moisture content of the clothes. Preferably, the target water absorption state is the water absorption state before the clothes enter the dehydration program.

[0063] S13. After the eccentricity adjustment stage, when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to be increased to the preset dehydration speed for dehydration. When the eccentricity value of the inner drum still does not meet the preset dehydration condition, the next eccentricity adjustment cycle is entered.

[0064] Specifically, after the eccentricity adjustment stage, the eccentricity value of the inner drum is detected again, and when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to be dehydrated to the preset dehydration speed. If the eccentricity value of the inner drum still does not meet the preset dehydration condition, the next eccentricity adjustment cycle is entered, that is, the clothing stretching stage is entered again, and the eccentricity adjustment stage is entered again when the eccentricity value after the clothing stretching stage does not meet the dehydration condition.

[0065] In a preferred embodiment, in order to avoid the problem of unlimited execution of the eccentricity adjustment cycle due to the eccentricity value of the inner drum always failing to reach the preset dehydration condition, resulting in a long dehydration time, this embodiment also ends the dehydration program when the number of executions of the eccentricity adjustment cycle is greater than the set number, and sends a prompt message to the user so that the user can adjust the clothing status in time.

[0066] In an optional implementation, the clothing stretching stage includes multiple speed-up stages, each of which has a corresponding acceleration and target speed. The inner drum is controlled to increase in speed step by step to a first speed, including: controlling the inner drum to sequentially execute multiple speed-up stages, and in each speed-up stage, controlling the inner drum to increase in speed to a corresponding target speed with a corresponding acceleration, and entering the next speed-up stage after the inner drum reaches the target speed of the current speed-up stage and maintains it for a first time; wherein the target speed of the current speed-up stage is the initial speed of the next speed-up stage, and the target speed of the last speed-up stage is the first speed.

[0067] In a specific example, referring to Figure 3 The curve diagram of the change of the inner drum speed during an eccentricity adjustment cycle is shown. The clothing stretching stage includes two speed-up stages. First, the inner drum is controlled to increase the speed to r1 with an initial acceleration a1 and maintained for a period of t1, so that the clothes remain in a rolling state in the inner drum and begin to stretch, laying the foundation for the uniform distribution of clothes during the subsequent high-speed dehydration process. Exemplarily, the speed r1 is less than 50rpm. After the speed of the inner drum reaches the speed r1, the speed of the inner drum is controlled to increase to r2 with an acceleration a21 and maintained for t2. The speed r2 is the first speed. The eccentricity value OOB of the inner drum is detected in the first speed rotation state to determine the distribution state of the clothes. Exemplarily, the range of the first speed is 50rpm~150rpm.

[0068] The clothes stretching stage in the above example has only two speed-increasing stages. In other possible implementations, multiple speed-increasing stages may be provided to control the process of increasing the speed of the inner drum to the first speed.

[0069] This embodiment adopts staged and gradual acceleration control on the speed increase process of the inner drum during the clothing stretching stage, so that the clothing can reach an ideal stretching and distribution state under a variety of speed change conditions, and also avoids the entanglement or uneven distribution of clothing caused by improper acceleration to the greatest extent, thereby significantly improving the dehydration effect.

[0070] In an optional implementation, referring to Figure 2 The flow chart of FIG. 1 shows a flow chart of FIG. 1 , and the water absorption state of the clothes is controlled by the following steps:

[0071] S21, when the outer cylinder is in a non-draining state, water is introduced into the inner cylinder;

[0072] S22, obtaining the real-time water level frequency output by the water level sensor;

[0073] S23, when the real-time water level frequency reaches the set water level frequency and the real-time water level frequency does not change after the water supply to the inner drum stops, it is determined that the water absorption state of the clothes reaches the target water absorption state;

[0074] S24, controlling the outer drum to drain water until the real-time water level frequency reaches the initial water level frequency;

[0075] The initial water level frequency is the water level frequency output by the water level sensor before the washing machine enters the dehydration program.

[0076] Specifically, the water level frequency of the washing machine is the water level in the outer drum sensed by the water level sensor. The frequency output by the water level sensor represents the water level in the outer drum. The lower the water level frequency, the higher the water level in the outer drum. Conversely, the higher the water level frequency, the lower the water level in the outer drum.

[0077] Before entering the dehydration program, the initial water level frequency of the washing machine is detected and recorded as a reference for adjusting the water absorption state of the clothes in the subsequent eccentricity adjustment stage. After the clothes stretching stage, if the eccentricity value of the inner drum still does not meet the preset dehydration condition, the water inlet valve or the spray valve is controlled to inject water into the inner drum when the drainage device is closed or the drainage port of the outer drum is closed until the real-time water level frequency reaches the set water level frequency. Since part of the water in the clothes is removed from the clothes after the clothes stretching stage, the clothes have water absorption. When the inner drum rotates, the water level in the outer drum drops, and the real-time water level frequency will change. It is necessary to continue to add water to the outer drum until the real-time water level frequency reaches the set water level frequency. When the real-time water level frequency reaches the set water level frequency and the real-time water level frequency does not change after stopping the water inlet to the inner drum, it means that the clothes are fully absorbed and the clothes are in the target water absorption state. At this time, the outer drum is controlled to drain water until the water level frequency of the washing machine reaches the initial water level frequency f0. At this time, the clothes are re-uniformly distributed in the target water content state when the inner drum rotates.

[0078] In an optional implementation, after the clothing stretching stage, when the eccentricity value of the inner drum does not meet the preset dehydration condition, the dehydration control method further includes: first controlling the inner drum to slow down and then executing the clothing stretching stage again, and when the number of executions of the clothing stretching stage reaches a set number of times and the eccentricity value of the inner drum still does not meet the preset dehydration condition, entering the eccentricity adjustment stage. When the number of executions of the clothing stretching stage is less than the set number of times and the eccentricity value of the inner drum meets the preset dehydration condition, controlling the inner drum to increase the speed to the dehydration speed. This embodiment can minimize the number of executions of the subsequent eccentricity adjustment stage, thereby reducing water consumption and avoiding the entire eccentricity adjustment process from taking too long.

[0079] In an optional implementation, the eccentricity adjustment stage also includes a second adjustment stage, and the dehydration control method includes: after the first adjustment stage, when the eccentricity value of the inner drum still does not meet the preset dehydration condition, entering the second adjustment stage; the second adjustment stage includes: controlling the inner drum to reverse at a second speed and maintaining it for a second time.

[0080] Specifically, controlling the inner drum to reverse at the second speed and maintain the set time includes: controlling the inner drum to decelerate to zero, and controlling the inner drum to increase the speed to the second speed and maintain the second time in the reversed state. The first speed is greater than or equal to the second speed. Exemplarily, the second speed ranges from 50rpm to 100rpm. In this embodiment, if the eccentricity value of the inner drum still does not meet the preset dehydration condition after the first adjustment stage, the eccentricity problem caused by the entanglement of clothes can be solved through the second eccentricity adjustment stage. After the second adjustment stage, if the eccentricity value of the inner drum still does not meet the preset dehydration condition, enter the next eccentricity adjustment cycle.

[0081] In an optional implementation, in the second adjustment stage, the magnitude of the acceleration in the inner drum reversal state is related to the eccentricity value after the first adjustment stage, and the larger the eccentricity value after the first adjustment stage, the smaller the acceleration in the inner drum reversal state; and / or the magnitude of the second rotational speed in the inner drum reversal state is related to the eccentricity value after the first adjustment stage, and the larger the eccentricity value after the first adjustment stage, the smaller the second rotational speed in the inner drum reversal state.

[0082] In this embodiment, when the eccentricity value after the first adjustment stage does not meet the dehydration condition, if the eccentricity value of the inner drum is larger, it means that the uniformity of clothing distribution is worse. At this time, reversing with a lower acceleration is more conducive to the redistribution of clothing, and finally maintaining it at a smaller second speed is more conducive to the untangling of clothing.

[0083] In an optional implementation of the present invention, the dehydration control method includes: in each eccentricity adjustment cycle, when the eccentricity value of the inner drum meets the preset dehydration condition, controlling the inner drum to increase the speed to the dehydration speed. Specifically, when the eccentricity value of the inner drum meets the preset dehydration condition, first increase the speed to the weighing speed with a preset acceleration, then obtain the weighing value of the clothes at the weighing speed, and then determine the dehydration speed corresponding to the current weighing value and eccentricity value according to the corresponding relationship between the weighing value, the eccentricity value and the dehydration speed, and finally control the inner drum to increase the speed to the dehydration speed for dehydration.

[0084] In general, this embodiment ensures the uniform distribution of clothes during the dehydration process through the clothes stretching stage and the eccentricity adjustment stage. The clothes stretching stage utilizes the strategy of phased and multi-acceleration adjustment and the eccentricity adjustment stage to dynamically adjust the moisture state of the clothes and reverse untangling measures, so as to effectively control and solve the problem of clothes eccentricity in the dehydration process of the washing machine, thereby reducing the noise and machine damage caused by eccentricity, and achieving efficient and stable dehydration effect.

[0085] The dehydration control method of this embodiment is described in detail below with reference to a specific example. Figure 3 The inner drum speed variation curve of one eccentric adjustment cycle is shown as well as Figure 4 The dehydration flow chart shown, the dehydration control method includes the following steps:

[0086] S401, after recording the water level frequency f0 before the dehydration program, enter the dehydration program and enter S402;

[0087] S402, enter the eccentricity adjustment cycle, control the inner drum to increase the speed to r1 at the acceleration a1, and maintain the speed for t1, and enter S403;

[0088] S403, control the inner cylinder to increase the speed to r2 at the acceleration of a21, detect the eccentricity value OOB when the speed is stable, and enter S404;

[0089] S404, determine whether the eccentricity value OOB ≤ the preset threshold value X? If the judgment result is yes, proceed to S405; if the judgment result is no, proceed to S406;

[0090] S405, first control the inner cylinder to increase the speed to the weighing speed r3 at the acceleration a4, obtain the weighing value, and enter S407;

[0091] S406, judging whether the number of times i when the eccentricity value is less than or equal to the preset threshold value X is less than the first set number of times I, if the judgment result is yes, proceed to S409, if the judgment result is no, proceed to S411;

[0092] S407, determining the dehydration speed according to the corresponding relationship between the weighing value, the eccentricity value and the dehydration speed, and proceeding to S408;

[0093] S408, increasing the speed to a dehydration speed for dehydration;

[0094] S409, the number of times i is accumulated and added by 1, and the process goes to S410;

[0095] S410, control the inner drum to decelerate to 0 at an acceleration of a3, and return to step S402;

[0096] S411, control the water inlet valve / spray valve to let water into the inner cylinder, and enter S412;

[0097] S412, determine the current water level frequency f1≤f0? If the judgment result is yes, proceed to S413; if the judgment result is no, return to S411;

[0098] S413, control the water inlet valve / spray valve to stop water inlet, and detect the eccentricity value 00B in real time, and enter S414;

[0099] S414. Is the eccentricity value OOB ≤ the preset threshold value X? If the judgment result is yes, proceed to S405; if the judgment result is no, proceed to S415;

[0100] S415, control the inner drum to decelerate to 0, then reverse at a5 acceleration and increase to r4, maintain for t5 time and then decelerate to 0 at a5 acceleration, this process is unwinding, enter S416;

[0101] S416, the number of executions n of the eccentricity adjustment cycle is cumulatively increased by 1, and the process proceeds to S417;

[0102] S417: Determine whether the number of executions of the eccentricity adjustment cycle n is less than or equal to the second set number of executions N. If the result of the determination is yes, return to S402; if the result of the determination is no, terminate the dehydration procedure.

[0103] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The steps shown in the relevant flow chart can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in an order different from that here. In other words, the order of steps described in the foregoing embodiments is only an example, and it is also within the scope of protection of the embodiments of the present application to reasonably adjust the order of steps based on the content of the embodiments of the present application.

[0104] An embodiment of the present application also provides a control device, which includes one or more processors and a non-temporary 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 the above embodiment.

[0105] Specifically, Figure 5 As shown, the control device includes a processor 100, at least one communication bus 200, a user interface 300, at least one external communication interface 400 and a memory 500. The communication bus 200 is configured to realize the connection and communication between these components. The user interface 300 may include a display screen, and the external communication interface 400 may include a standard wired interface and a wireless interface. The memory 500 stores a dehydration control method for a washing machine. The processor 100 is used to adopt the above method when executing the dehydration control method for a washing machine stored in the memory 500.

[0106] In a specific example, combining Figure 6 The control device includes a detection module, a storage module, a calculation module and a control module, wherein the detection module can detect the eccentricity value, weighing value and water level frequency of the inner drum, the storage module can store the data detected by the detection module, the calculation module can perform real-time analysis and judgment on the data stored in the storage module, and the control module issues corresponding control instructions according to the analysis and judgment results to ensure that the entire dehydration process is efficient, stable and safe.

[0107] This embodiment also proposes a washing machine, which adopts the dehydration control method of the washing machine proposed above, or includes the control device proposed above.

[0108] The structure of the washing machine of this embodiment has been introduced in the execution body part of the dehydration control method, and will not be repeated here.

[0109] The description of the above computer program product, computer-readable storage medium, and control device is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the computer program product, computer-readable storage medium, and control device of this application, please refer to the description of the method embodiment of this application for understanding.

[0110] The sequence of serial numbers or introduction of the embodiments of the present application is for description only and does not represent the superiority or inferiority of the embodiments.

[0111] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0112] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0113] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0114] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access, or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiment of the present application may be a non-volatile storage medium, in other words, a non-transient storage medium.

[0115] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data for analysis, stored data, displayed data, etc.) and signals involved in the embodiments of this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions. For example, the scene data of the current frame in the three-dimensional virtual scene, the device information of the client, and the scene interaction information involved in the embodiments of this application are all obtained with full authorization.

[0116] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A dehydration control method for a washing machine, characterized in that: The dehydration control method comprises: In the eccentric adjustment cycle of the dehydration program, the clothing stretching stage is first performed, and the clothing stretching stage includes: controlling the inner drum to increase the speed step by step to a first speed; After the clothing stretching stage, when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to be dehydrated to a preset dehydration speed, and when the eccentricity value of the inner drum does not meet the preset dehydration condition, the eccentricity adjustment stage is entered; the eccentricity adjustment stage includes a first adjustment stage, which includes: injecting water into the inner drum while the inner drum is rotating until the clothes in the inner drum reach a target water absorption state; The eccentricity adjustment stage also includes a second adjustment stage. After the first adjustment stage, if the eccentricity value of the inner drum still does not meet the preset dehydration condition, the second adjustment stage is entered; the second adjustment stage includes: controlling the inner drum to reverse at a second speed and maintaining it for a second time; After the eccentricity adjustment stage, when the eccentricity value of the inner drum meets the preset dehydration condition, the inner drum speed is controlled to be increased to a preset dehydration speed for dehydration, and when the eccentricity value of the inner drum still does not meet the preset dehydration condition, the next eccentricity adjustment cycle is entered; In the second adjustment stage, the magnitude of the acceleration in the inner drum reversal state is related to the eccentricity value after the first adjustment stage, and the greater the eccentricity value after the first adjustment stage, the smaller the acceleration in the inner drum reversal state; and / or, The magnitude of the second rotation speed in the inner drum reversal state is related to the eccentricity value after the first adjustment stage, and the larger the eccentricity value after the first adjustment stage, the smaller the second rotation speed in the inner drum reversal state.

2. The dehydration control method of a washing machine according to claim 1, characterized in that: The clothing stretching stage includes a plurality of speed-up stages, each of which has a corresponding acceleration and target speed. The control of the inner drum to increase the speed step by step to a first speed includes: The inner drum is controlled to sequentially execute a plurality of speed-up stages, and in each speed-up stage, the inner drum is controlled to increase the speed to a corresponding target speed at a corresponding acceleration, and after the inner drum reaches the target speed of the current speed-up stage and maintains the speed for a first time, the next speed-up stage is entered; The target speed of the current speed-up stage is the initial speed of the next speed-up stage, and the target speed of the last speed-up stage is the first speed.

3. The dehydration control method of a washing machine according to claim 1, characterized in that: Control the water absorption of clothes in the following ways: When the outer cylinder is in a non-draining state, water is introduced into the inner cylinder; Get the real-time water level frequency output by the water level sensor; When the real-time water level frequency reaches the set water level frequency and the real-time water level frequency does not change after the water supply to the inner drum stops, it is determined that the water absorption state of the clothes reaches the target water absorption state; Controlling the outer drum to drain water until the real-time water level frequency reaches the initial water level frequency; The initial water level frequency is the water level frequency output by the water level sensor before the washing machine enters the dehydration program.

4. The dehydration control method of a washing machine according to claim 1, characterized in that: After the clothing stretching stage, when the eccentricity value of the inner drum does not meet the preset dehydration condition, the dehydration control method further includes: After controlling the inner drum to slow down, the clothing stretching stage is performed again; When the execution times of the clothes stretching stage reaches the set times and the eccentricity value of the inner drum still does not meet the preset dehydration condition, the eccentricity adjustment stage is entered; When the execution number of the clothing stretching stage is less than the set number and the eccentricity value of the inner drum meets the preset dehydration condition, controlling the inner drum to increase the speed to the dehydration speed; Wherein: the dehydration speed is greater than the first speed.

5. The dehydration control method of a washing machine according to claim 1, characterized in that: The first speed is greater than or equal to the second speed; And / or, the first rotational speed ranges from 50 rpm to 150 rpm, and the second rotational speed ranges from 50 rpm to 100 rpm.

6. The dehydration control method of a washing machine according to claim 1, characterized in that: When the execution times of the eccentric adjustment cycle are greater than the set times, the dehydration procedure is ended.

7. A control device, characterized in that: It includes one or more processors and a non-temporary 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 one of claims 1 to 6.

8. A washing machine, characterized in that: It adopts the dehydration control method of the washing machine described in any one of claims 1 to 6, or includes the control device described in claim 7.

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