Washing machine dehydration control method, device and storage medium

Abstract

The embodiment of the present application discloses a washing machine dehydration control method, device and storage medium, wherein the washing machine includes a balance ring, which is installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balance ring, and the method includes: obtaining the rotation speed of the washing machine; determining that the rotation speed is greater than the rotation speed threshold, and injecting substances into the at least two boxes based on a preset first injection strategy until the amplitude is less than the amplitude threshold. In this way, the box of the balance ring is injected with the first injection strategy provided by the present application during the high-speed dehydration stage, which can effectively reduce the amplitude of the high-speed dehydration stage, improve the dehydration efficiency of the high-speed stage, and solve the problem of excessive vibration in the high-speed dehydration stage of the washing machine.

Description

Technical Field

[0001] The present application relates to washing machine technology, and more particularly to a washing machine dehydration control method, device and storage medium. Background Art

[0002] During the dehydration stage, the washing machine produces a large mass eccentricity due to the uneven distribution of clothes. These eccentricities generate a large inertial force after the dehydration reaches a certain speed, causing the washing machine to produce a large vibration when rotating during the dehydration stage.

[0003] In the prior art, the purpose of offsetting the eccentricity is achieved by detecting the eccentric position and performing directional compensation for the eccentricity. This method of detecting the eccentric position is relatively accurate at low speeds. When the speed is relatively high, the eccentric position detection will have a certain deviation due to factors such as the resonance point. The vibration is large during the high-speed dehydration stage, and the dehydration control accuracy is poor. Summary of the invention

[0004] In order to solve the above technical problems, the embodiments of the present application hope to provide a washing machine dehydration control method, device and storage medium.

[0005] The technical solution of this application is implemented as follows:

[0006] In a first aspect, a method for controlling dehydration of a washing machine is provided, wherein the washing machine comprises a balancing ring, the balancing ring being installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balancing ring.

[0007] The method comprises:

[0008] Obtaining the rotation speed of the washing machine;

[0009] It is determined that the rotation speed is greater than a rotation speed threshold, and based on a preset first injection strategy, the material is injected into the at least two boxes until the amplitude is less than the amplitude threshold.

[0010] In the above scheme, the first injection strategy includes: selecting any one of at least two boxes as the first box, injecting substances into the first box; obtaining the amplitude of the washing machine; and if it is determined that the amplitude increases, injecting substances into other boxes that have not been injected in the at least two boxes until the amplitude is less than the amplitude threshold.

[0011] In the above scheme, injecting substances into other boxes that have not been injected into the at least two boxes until the amplitude is less than the amplitude threshold includes: selecting other boxes that have not been injected into the at least two boxes, and injecting substances into the other boxes; obtaining the amplitude decrease of the washing machine; determining that the amplitude decrease is greater than or equal to a first decrease threshold, and continuing to inject substances into the other boxes until the amplitude is less than the amplitude threshold; determining that the amplitude decrease is less than the first decrease threshold, and injecting substances into other boxes that have not been injected into the at least two boxes until the amplitude is less than the amplitude threshold.

[0012] In the above scheme, the first injection strategy also includes: performing an injection operation for the at least two boxes, and increasing the compensation times by 1; determining that the amplitude of the washing machine is greater than the amplitude threshold, and the compensation times are greater than or equal to the times threshold, determining that the compensation fails; determining that the amplitude of the washing machine is greater than the amplitude threshold, and the compensation times are less than the times threshold, and repeating the injection operation for the at least two boxes.

[0013] In the above solution, the first injection strategy also includes: determining that compensation fails, generating an alarm message; and / or determining that compensation fails, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0014] In the above solution, the method further comprises: determining that the washing machine enters a dehydration stage and executing an eccentric balance control strategy;

[0015] Wherein, the eccentric balance control strategy includes: detecting the eccentric position of the washing machine; selecting a second box from the at least two boxes according to the eccentric position; and injecting a substance into the second box to reduce the amplitude of the washing machine.

[0016] In the above scheme, the first injection strategy includes: determining that the rotation speed of the washing machine is greater than the rotation speed threshold, and recording the second box that performs the injection operation; when injecting substances into the at least two boxes based on the first injection strategy, selecting a box other than the second box from the at least two boxes as the first box.

[0017] In the above scheme, the method also includes: determining that the rotation speed of the washing machine is less than or equal to a rotation speed threshold, and controlling the washing machine to inject substances into the at least two boxes based on a preset second injection strategy until the amplitude is less than the amplitude threshold.

[0018] In the above scheme, the method further includes: when the at least two boxes are filled and the amplitude is greater than or equal to the amplitude threshold, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0019] In the above solution, the method further includes: determining that the amplitude is less than an amplitude threshold, and increasing the rotation speed of the washing machine to a next rotation speed step of the current rotation speed step.

[0020] In a second aspect, a washing machine dehydration control device is provided, which is applied to a washing machine, wherein the washing machine comprises a balancing ring, which is installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balancing ring.

[0021] The control device comprises:

[0022] An acquisition unit, used for acquiring the rotation speed of the washing machine;

[0023] The processing unit is used to determine that the rotation speed is greater than a rotation speed threshold, and inject material into the at least two boxes based on a preset first injection strategy until the amplitude is less than an amplitude threshold.

[0024] In a third aspect, a washing machine dehydration control device is provided, which is applied to a washing machine, wherein the washing machine comprises a balancing ring, which is installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balancing ring.

[0025] The control device comprises: a processor and a memory configured to store a computer program that can be run on the processor, wherein:

[0026] The processor is configured to execute the steps of the aforementioned method when running the computer program.

[0027] In a fourth aspect, a computer storage medium is provided, on which a computer program is stored, wherein the computer program implements the steps of the aforementioned method when executed by a processor.

[0028] In the embodiment of the present application, a washing machine dehydration control method, device and storage medium are provided, wherein the washing machine includes a balance ring, which is installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balance ring, and the method includes: obtaining the rotation speed of the washing machine; determining that the rotation speed is greater than the rotation speed threshold, and injecting substances into the at least two boxes based on a preset first injection strategy until the amplitude is less than the amplitude threshold. In this way, the box of the balance ring is injected by the first injection strategy provided by the present application during the high-speed dehydration stage, which can effectively reduce the amplitude of the high-speed dehydration stage, improve the dehydration efficiency of the high-speed stage, and solve the problem of excessive vibration in the high-speed dehydration stage of the washing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of a first flow chart of a washing machine dehydration control method in an embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of the composition structure of the balance ring according to an embodiment of the present application;

[0031] Figure 3 This is a first schematic diagram of dividing the speed steps in the embodiment of the present application;

[0032] Figure 4 This is a second schematic diagram of the division of the speed steps in the embodiment of the present application;

[0033] Figure 5 This is a second flow chart of the washing machine dehydration control method in the embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of a third flow chart of the washing machine dehydration control method in an embodiment of the present application;

[0035] Figure 7 This is a schematic diagram of a fourth process of the washing machine dehydration control method in an embodiment of the present application;

[0036] Figure 8 This is a fifth flow chart of the washing machine dehydration control method in the embodiment of the present application;

[0037] Fig. 9 This is a schematic diagram of the first component structure of the washing machine dehydration control device in an embodiment of the present application.

[0038] Fig.10 This is a schematic diagram of the second component structure of the washing machine dehydration control device in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0040] In order to solve the problem of large vibration and poor dehydration control accuracy of the washing machine during the high-speed dehydration stage, an embodiment of the present application provides a washing machine dehydration control method, which is applied to the dehydration control stage of the washing machine. The washing machine includes a balance ring, which is installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balance ring.

[0041] Figure 1 FIG. 1 is a schematic diagram of a first flow chart of a method for controlling the dehydration of a washing machine according to an embodiment of the present application. Figure 1 As shown, the method includes:

[0042] Step 101: obtaining the rotation speed of the washing machine;

[0043] Here, the rotation speed is an operating parameter of the washing machine driving motor and can be directly obtained by reading.

[0044] Step 102: Determine that the rotation speed is greater than a rotation speed threshold, and inject material into the at least two boxes based on a preset first injection strategy until the amplitude is less than an amplitude threshold.

[0045] Exemplarily, the speed threshold may be 200 rpm, 400 rpm, 600 rpm, or 800 rpm, etc. The speed threshold may be used to divide the dehydration control into: dehydration control at a low speed stage and dehydration control at a high speed stage, and different injection strategies may be used to inject water into the housing at different stages. For example, an eccentric control strategy may be used at a low speed stage, and a first injection strategy may be used at a high speed stage. In practical applications, different injection strategies may be used to inject water into the housing at different stages, such as using the first injection strategy at both the low speed stage and the high speed stage.

[0046] In some embodiments, the method further includes: obtaining the amplitude of the washing machine; accordingly, step 102 may be: determining that the rotation speed is greater than a rotation speed threshold and the amplitude is greater than an amplitude threshold, and injecting substances into the at least two boxes based on a preset first injection strategy until the amplitude is less than the amplitude threshold.

[0047] Exemplarily, at least one vibration detection device is installed on the inner wall of the washing machine drum, and the vibration information of the vibration detection device is controlled, and the vibration information is processed to obtain the amplitude. Exemplarily, the vibration detection device can be a displacement sensor, an acceleration sensor, or a Hall sensor.

[0048] For example, Figure 2 FIG. 1 is a schematic diagram of the structure of the balance ring of the embodiment of the present application. The balance ring is installed on the inner drum of the washing machine to reduce the vibration of the washing machine during the dehydration stage. Figure 2 As shown, the balance ring includes: a first box body 201, a second box body 202 and a third box body 203. In the high-speed dehydration stage, the first injection strategy is adopted to inject water into the three boxes to reduce vibration. Figure 2 Only three boxes are given as an example, and 2, 4 or 5 boxes can be set according to actual needs.

[0049] In some embodiments, at least two boxes are distributed along the ring at equal intervals. In other embodiments, at least two boxes are distributed along the ring at unequal intervals.

[0050] In practical applications, the balancing ring further includes an injection channel through which substances are injected into the box body, and an outlet channel through which substances are ejected from the box body.

[0051] In practical applications, the injected substance is a liquid, such as water or other harmless liquids. The injected substance may also be a solid substance, such as a balancing block or balancing ball with mass.

[0052] Based on the above balancing ring, the first injection strategy is illustrated.

[0053] Here, the vibration adjustment strategy is used to indicate the injection sequence and / or injection speed of the water tank. The injection sequence can be to use a fixed water tank as the starting water tank, or to use any water tank as the starting water tank, and select unfilled water tanks in a clockwise or counterclockwise order to inject them in sequence. When only the injection sequence is included, the injection speed can be pre-set. The injection speed can be a pre-set fixed value, or different injection speeds can be set for different speed steps. When only the injection speed is included, the injection sequence can be pre-set.

[0054] In some embodiments, the first injection strategy includes: selecting any one of at least two boxes as a first box, and injecting substances into the first box; obtaining the amplitude of the washing machine; and if it is determined that the amplitude increases, injecting substances into other boxes of the at least two boxes that have not been injected, until the amplitude is less than an amplitude threshold.

[0055] That is to say, in the high-speed stage, there is no need to detect the eccentric position, and a certain weight of a substance is injected into any water tank by a test water injection method. For example, water or other harmless liquid is injected.

[0056] In some embodiments, the method further includes: when the at least two boxes are filled and the amplitude is greater than or equal to an amplitude threshold, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0057] That is to say, if the vibration cannot be reduced when the water tank in the balance ring is full, you can stop rotating or reverse to shake out the clothes, and then re-control the dehydration.

[0058] In some embodiments, the method further includes: determining that the amplitude is less than an amplitude threshold, and increasing the rotation speed of the washing machine to a next rotation speed step of a current rotation speed step.

[0059] That is to say, in the dehydration stage at the current speed step, if the amplitude is less than the vibration threshold, or the amplitude after vibration adjustment is less than the vibration threshold, the speed is increased to the next speed step of the current speed step to continue dehydration control to improve dehydration efficiency.

[0060] In the embodiment of the present application, the washing machine is configured with at least two speed steps, and different speed steps have different tolerances to vibration. The higher the speed step, the lower the tolerance to vibration, that is, the smaller the vibration threshold.

[0061] like Figure 3As shown, exemplarily, two speed steps are set, the speed range of the first speed step is 0-200 rpm (not included), which is defined as the low-speed stage, and the speed range of the second speed step is 200 (inclusive) - the speed upper limit, which is defined as the high-speed stage.

[0062] For example, the vibration threshold corresponding to the first speed step is 5 mm, and the vibration threshold corresponding to the second speed step is 3 mm.

[0063] like Figure 4 As shown, 4 speed steps are set, the speed range of the 1st speed step is 0-200 rpm (not included), the speed range of the 2nd speed step is 200-400 rpm (not included), the 1st speed step and the 2nd speed step are defined as low-speed stages, the speed range of the 3rd speed step is 400-600 rpm (not included), the speed range of the 4th speed step is 600-speed upper limit, and the 3rd speed step and the 4th speed step are defined as high-speed stages.

[0064] For example, the vibration threshold corresponding to the first speed step is 5 mm, the vibration threshold corresponding to the second speed step is 4 mm, the vibration threshold corresponding to the third speed step is 3 mm, and the vibration threshold corresponding to the fourth speed step is 2 mm. It is understandable that 5 or more speed steps can also be set.

[0065] The above division of speed steps and setting of vibration threshold are only exemplary and not limiting. In actual application, the division of speed steps and setting of vibration threshold can be flexibly set according to the structure and vibration resistance of the washing machine.

[0066] Based on the above method embodiment, the first injection strategy is further illustrated. Figure 5 As shown, the method may specifically include:

[0067] Step 501: obtaining the rotation speed of the washing machine;

[0068] Step 502: determining that the rotation speed is greater than a rotation speed threshold, selecting any one of at least two boxes as a first box, and injecting a substance into the first box;

[0069] In the embodiment of the present application, when reducing vibration by injecting material into the box to change the weight of the box, there is no need to determine the specific injection object. Instead, a blind injection (also called trial injection) is adopted to select any unfilled first box. When changing the weight of the first box cannot effectively solve the vibration problem, the injection operation is performed on the next box that has not been injected. The injection control process of the next box is exactly the same as the injection control process of the first box until the amplitude is less than the first vibration threshold.

[0070] Step 503: obtaining the amplitude of the washing machine;

[0071] During the process of performing the injection operation on the first housing, the vibration detection device detects the amplitude of the washing machine to monitor whether the injection operation on the first housing can effectively reduce the amplitude of the washing machine.

[0072] Step 504: determining that the amplitude increases, selecting other boxes that have not been injected from at least two boxes, and injecting substances into the other boxes;

[0073] In some embodiments, when it is determined that the amplitude is reduced, the process returns to step 502 to continue injecting the substance into the first box.

[0074] In some embodiments, step 504 may also be: when it is determined that the amplitude decrease is less than a first decrease threshold, selecting other boxes that have not been injected from at least two boxes, and injecting the substance into the other boxes.

[0075] Here, the other boxes refer to the remaining boxes outside the first box. When each box performs an injection operation once, it is defined as performing a compensation operation.

[0076] Step 505: obtaining the amplitude reduction of the washing machine;

[0077] Step 506: Determine that the amplitude decrease is greater than or equal to a first decrease threshold, and continue to inject substances into the other boxes until the amplitude is less than the amplitude threshold;

[0078] Step 507: Determine that the amplitude decrease is less than a first decrease threshold, and inject material into other boxes among the at least two boxes that have not been injected, until the amplitude is less than the amplitude threshold.

[0079] When the amplitude is detected to be greater than the amplitude threshold, water or a certain mass of material is injected into any box first. If the amplitude decrease is greater than the set value, it means that the box is an effective box to reduce vibration. Then continue to inject water or a certain mass of material into the box. If the amplitude decrease reaches the vibration threshold calibrated by the current speed step, the rotation control under the current speed step is stopped, and the speed is increased to the next speed step for control. If the amplitude decrease is less than the set value after the first box is injected with water or a certain mass of material, or even the amplitude increases (that is, the vibration decrease value is negative), it means that the box is an ineffective box to reduce vibration. Then change another box to inject water or a certain mass, and repeat the control steps of the first box for the next box until the vibration drops below the standard value, and it is determined that the vibration compensation is completed. In this way, the vibration in the dehydration stage is reduced and the dehydration efficiency is improved.

[0080] In some embodiments, the first injection strategy also includes: performing an injection operation for each of the at least two boxes, and increasing the number of compensations by 1; determining that the amplitude of the washing machine is greater than an amplitude threshold, and the number of compensations is greater than or equal to a number threshold, and determining that the compensation has failed; determining that the amplitude of the washing machine is greater than an amplitude threshold, and the number of compensations is less than a number threshold, and repeating the injection operation for the at least two boxes.

[0081] In some embodiments, the first injection strategy further includes: determining that compensation has failed, generating an alarm message; and / or determining that compensation has failed, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0082] In some embodiments, the method further includes: when the at least two boxes are filled and the amplitude is greater than or equal to an amplitude threshold, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0083] That is to say, if the vibration cannot be reduced when the water tank in the balance ring is full, you can stop rotating or reverse to shake out the clothes, and then re-control the dehydration.

[0084] In some embodiments, the method further includes: determining that the amplitude is less than an amplitude threshold, and increasing the rotation speed of the washing machine to a next rotation speed step of a current rotation speed step.

[0085] That is to say, in the dehydration stage at the current speed step, if the amplitude is less than the vibration threshold, or the amplitude after vibration adjustment is less than the vibration threshold, the speed is increased to the next speed step of the current speed step to continue dehydration control to improve dehydration efficiency.

[0086] Based on the above method embodiment, the washing machine dehydration control method is further illustrated. Figure 6 As shown, the method may specifically include:

[0087] Step 601: Determine that the washing machine enters the dehydration stage and execute an eccentric balance control strategy;

[0088] Wherein, the eccentric balance control strategy includes: detecting the eccentric position of the washing machine; selecting a second box from the at least two boxes according to the eccentric position; and injecting a substance into the second box to reduce the amplitude of the washing machine.

[0089] That is to say, in the low-speed dehydration stage of the washing machine, the eccentric position detection is more accurate due to the slow speed, so the eccentricity can be eliminated by reverse compensation of the eccentric position, effectively reducing vibration. For example, the box on the opposite side of the eccentric position is injected to increase the weight on the opposite side, reduce the eccentricity, and thus reduce vibration.

[0090] Here, since the washing machine enters the dehydration stage from low speed to high speed gradually, at the beginning of the dehydration stage, which is the low-speed dehydration stage, the eccentric balance control strategy is executed to detect the eccentricity of the washing machine, and the second box is selected for injection operation according to the eccentric position.

[0091] When the high-speed stage is in progress and the eccentric balance control strategy is invalid, the first injection strategy is used to balance the washing machine.

[0092] Step 602: Obtain the rotation speed of the washing machine;

[0093] Step 603: Determine that the rotation speed is greater than a rotation speed threshold, and record the second box that performs the injection operation;

[0094] Step 604: when injecting the material into the at least two boxes based on the first injection strategy, selecting a box other than the second box from the at least two boxes as the first box;

[0095] Step 605: injecting a substance into the first box;

[0096] Step 606: Obtaining the amplitude of the washing machine;

[0097] Step 607: if it is determined that the amplitude increases, injecting substances into other boxes among the at least two boxes that have not been injected, until the amplitude is less than the amplitude threshold.

[0098] During the high-speed dehydration stage, the washing machine uses a first injection strategy to inject material into the box of the balance ring to reduce the amplitude of the washing machine. There is no need to perform eccentricity detection on the washing machine. Weight compensation is performed in a blind injection manner to reduce the vibration amplitude, thereby improving the dehydration efficiency and solving the problem of poor balance control effect caused by inaccurate eccentricity detection.

[0099] In some embodiments, the first injection strategy also includes: performing an injection operation for each of the at least two boxes, and increasing the number of compensations by 1; determining that the amplitude of the washing machine is greater than an amplitude threshold, and the number of compensations is greater than or equal to a number threshold, and determining that the compensation has failed; determining that the amplitude of the washing machine is greater than an amplitude threshold, and the number of compensations is less than a number threshold, and repeating the injection operation for the at least two boxes.

[0100] In some embodiments, the first injection strategy further includes: determining that compensation has failed, generating an alarm message; and / or determining that compensation has failed, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0101] In some embodiments, the method further includes: when the at least two boxes are filled and the amplitude is greater than or equal to an amplitude threshold, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0102] That is to say, if the vibration cannot be reduced when the water tank in the balance ring is full, you can stop rotating or reverse to shake out the clothes, and then re-control the dehydration.

[0103] In some embodiments, the method further includes: determining that the amplitude is less than an amplitude threshold, and increasing the rotation speed of the washing machine to a next rotation speed step of a current rotation speed step.

[0104] That is to say, in the dehydration stage at the current speed step, if the amplitude is less than the vibration threshold, or the amplitude after vibration adjustment is less than the vibration threshold, the speed is increased to the next speed step of the current speed step to continue dehydration control to improve dehydration efficiency.

[0105] Based on the above method embodiment, the washing machine dehydration control method is further illustrated. Figure 7 As shown, the method may specifically include:

[0106] Step 701: obtaining the rotation speed of the washing machine;

[0107] Step 702: Determine that the rotation speed of the washing machine is less than or equal to a rotation speed threshold, and control the washing machine to inject substances into the at least two boxes based on a preset second injection strategy until the amplitude is less than the amplitude threshold;

[0108] Here, the second injection strategy and the first injection strategy may be the same or different. In the low speed stage, the second injection strategy is used to inject substances into at least two boxes.

[0109] In some embodiments, the washing machine may include, in addition to the above-mentioned balancing ring (which may be referred to as an upper balancing ring, and the corresponding housing may be referred to as an upper housing), a lower balancing ring, and the corresponding housing may be referred to as a lower housing.

[0110] The upper balance ring is provided with more than 2 upper boxes, and the lower balance ring is provided with more than 2 lower boxes. For example, the upper and lower balance rings can be provided with 2, 3, 4, 5 or 6 water tanks. The number of upper and lower water tanks can be equal or unequal. The upper and lower boxes are distributed at equal intervals along the ring, or at unequal intervals. The upper and lower boxes are arranged in alignment or not.

[0111] In practical applications, the balancing ring further includes an injection channel, through which substances are injected into the upper and lower boxes. The balancing ring further includes an ejection channel, through which substances are ejected from the boxes. The upper and lower boxes share one injection channel and one ejection channel, or use different injection channels and ejection channels.

[0112] Preferably, the injected substance is a liquid, such as water or other harmless liquids. The injected substance may also be a solid substance, such as a balancing block or balancing ball with mass.

[0113] In some embodiments, when the second injection strategy is different from the first injection strategy, the second injection strategy may be an eccentric balance control strategy.

[0114] In other embodiments, the second injection strategy includes: selecting any two lower boxes among at least two boxes and injecting substances; obtaining the amplitude of the washing machine; determining that the amplitude is decreasing, continuing the injection operation for the two lower boxes; determining that the amplitude is increasing, injecting substances into other boxes among the at least two boxes that have not been injected, until the amplitude is less than the amplitude threshold.

[0115] The first injection strategy may also include: performing an injection operation for each of the at least two lower boxes, and increasing the compensation times by 1; determining that the amplitude of the washing machine is greater than an amplitude threshold, and the compensation times are greater than or equal to a times threshold, and determining that the compensation has failed; determining that the amplitude of the washing machine is greater than an amplitude threshold, and the compensation times are less than a times threshold, and repeating the injection operation for at least two lower boxes.

[0116] The second injection strategy may further include: determining that compensation fails, generating an alarm message; and / or determining that compensation fails, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0117] Step 703: Determine that the rotation speed is greater than a rotation speed threshold, and inject material into the at least two boxes based on a preset first injection strategy until the amplitude is less than an amplitude threshold.

[0118] In some embodiments, the method further includes: when the at least two boxes are filled and the amplitude is greater than or equal to an amplitude threshold, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0119] That is to say, if the vibration cannot be reduced when the water tank in the balance ring is full, you can stop rotating or reverse to shake out the clothes, and then re-control the dehydration.

[0120] In some embodiments, the method further includes: determining that the amplitude is less than an amplitude threshold, and increasing the rotation speed of the washing machine to a next rotation speed step of a current rotation speed step.

[0121] That is to say, in the dehydration stage at the current speed step, if the amplitude is less than the vibration threshold, or the amplitude after vibration adjustment is less than the vibration threshold, the speed is increased to the next speed step of the current speed step to continue dehydration control to improve dehydration efficiency.

[0122] By adopting the above-mentioned dehydration control method, the first injection strategy and the second injection strategy are used in the high-speed stage and the low-speed stage respectively, and injection operations are performed on the upper box body and the lower box body respectively, thereby effectively reducing the vibration in different dehydration stages and improving the accuracy of balance control, thereby improving the dehydration efficiency in the high-speed stage.

[0123] Based on the above method embodiment, the dehydration control is further illustrated by taking the example that the balance ring includes three water tanks. Figure 8 As shown, the method may specifically include:

[0124] Step 801: Entering the dehydration active balance stage;

[0125] Step 802: Vibration compensation is performed using an eccentric balance control strategy;

[0126] Specifically, the eccentric balance control strategy includes: detecting the eccentric position of the washing machine; selecting a second box from the at least two boxes according to the eccentric position; and injecting a substance into the second box to reduce the amplitude of the washing machine.

[0127] Step 803: Rotation speed <= 200? If yes, go to step 804; if no, go to step 805;

[0128] Step 804: performing eccentric balance control at a low speed stage;

[0129] Step 805: Determine whether the vibration becomes larger after compensation. If yes, execute step 806; if no, return to step 802;

[0130] Here, when entering the high-speed dehydration stage, the eccentric balance control strategy can still be used for vibration compensation. If the vibration cannot be effectively reduced, the first box is recorded, and when the first injection strategy is used for compensation, other boxes (the second box and the third box) are selected for compensation.

[0131] Alternatively, when entering the high-speed dehydration stage, the first injection strategy is directly used for compensation, that is, any box is selected as the first box for compensation. If the vibration cannot be effectively reduced, other boxes (the second box and the third box) are compensated.

[0132] Step 806: Record the box that makes the vibration larger as the first box;

[0133] Here, the first housing may be a housing that performs injection operation using an eccentric balance control strategy, or may be the first housing selected for injection using a first injection strategy.

[0134] Step 807: Compensating the second box among the other boxes;

[0135] Step 808: Is the amplitude drop greater than or equal to the first drop threshold? If yes, return to step 807; if no, execute step 809;

[0136] Step 809: Compensate the third box;

[0137] Step 810: Is the amplitude drop greater than or equal to the first drop threshold? If yes, return to step 809; if no, execute step 812;

[0138] Step 811: The amplitude drops below the amplitude threshold and ends;

[0139] It should be noted that the amplitude needs to be re-detected during the execution of step 807 and step 809. If the amplitude drops below the amplitude threshold, it indicates that the washing machine has been effectively balanced, and the current compensation operation is terminated.

[0140] Similarly, when entering the high-speed dehydration stage and performing the injection operation on the first box, the process ends if the amplitude drops below the amplitude threshold.

[0141] Step 812: Is the number of compensations ≥ 3? If yes, go to step 814; if no, go to step 813;

[0142] Step 813: Repeat the compensation for the three boxes;

[0143] Step 814: Error alarm.

[0144] By adopting the above-mentioned scheme, the box body of the balance ring is injected through the first injection strategy provided in the present application during the high-speed dehydration stage, which can effectively reduce the amplitude during the high-speed dehydration stage and effectively solve the problem of inaccurate eccentricity detection during the high-speed stage, thereby failing to effectively reduce the control of high-speed dehydration vibration.

[0145] The present application also provides a control device for a washing machine, which is applied to the washing machine. The washing machine includes a balancing ring, which is installed around the inner drum wall of the washing machine. At least two boxes are arranged in the balancing ring, such as Fig. 9 As shown, the control device includes:

[0146] An acquisition unit 901 is used to acquire the rotation speed of the washing machine;

[0147] The processing unit 902 is configured to determine that the rotation speed is greater than a rotation speed threshold, and inject material into the at least two boxes based on a preset first injection strategy until the amplitude is less than an amplitude threshold.

[0148] In some embodiments, the first injection strategy includes: selecting any one of at least two boxes as a first box, and injecting substances into the first box; obtaining the amplitude of the washing machine; and if it is determined that the amplitude increases, injecting substances into other boxes of the at least two boxes that have not been injected, until the amplitude is less than an amplitude threshold.

[0149] In some embodiments, injecting substances into other boxes among the at least two boxes that have not been injected until the amplitude is less than an amplitude threshold includes: selecting other boxes among the at least two boxes that have not been injected, and injecting substances into the other boxes; obtaining the amplitude decrease of the washing machine; determining that the amplitude decrease is greater than or equal to a first decrease threshold, and continuing to inject substances into the other boxes until the amplitude is less than the amplitude threshold; determining that the amplitude decrease is less than the first decrease threshold, and injecting substances into other boxes among the at least two boxes that have not been injected until the amplitude is less than the amplitude threshold.

[0150] In some embodiments, the first injection strategy also includes: performing an injection operation for each of the at least two boxes, and increasing the number of compensations by 1; determining that the amplitude of the washing machine is greater than an amplitude threshold, and the number of compensations is greater than or equal to a number threshold, and determining that the compensation has failed; determining that the amplitude of the washing machine is greater than an amplitude threshold, and the number of compensations is less than a number threshold, and repeating the injection operation for the at least two boxes.

[0151] In some embodiments, the first injection strategy further includes: determining that compensation has failed, generating an alarm message; and / or determining that compensation has failed, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

[0152] In some embodiments, the processing unit 902 is further used to determine that the washing machine enters a dehydration stage and execute an eccentric balance control strategy;

[0153] Wherein, the eccentric balance control strategy includes: detecting the eccentric position of the washing machine; selecting a second box from the at least two boxes according to the eccentric position; and injecting a substance into the second box to reduce the amplitude of the washing machine.

[0154] In some embodiments, the first injection strategy includes: determining that the rotation speed of the washing machine is greater than the rotation speed threshold, and recording the second box that performs the injection operation; when injecting substances into the at least two boxes based on the first injection strategy, selecting a box other than the second box from the at least two boxes as the first box.

[0155] In some embodiments, the processing unit 902 is further used to determine that the rotation speed of the washing machine is less than or equal to a rotation speed threshold, and control the washing machine to inject substances into the at least two boxes based on a preset second injection strategy until the amplitude is less than the amplitude threshold.

[0156] In some embodiments, the processing unit 902 is further used to control the washing machine to stop rotating or to control the washing machine to reverse when the at least two boxes are filled and the amplitude is greater than or equal to the amplitude threshold.

[0157] In some embodiments, the processing unit 902 is further configured to determine that the amplitude is less than an amplitude threshold, and increase the rotation speed of the washing machine to a next rotation speed step of a current rotation speed step.

[0158] The present application also provides a control device for a washing machine, which is applied to the washing machine. The washing machine includes a balancing ring, which is installed around the inner drum wall of the washing machine. At least two boxes are arranged in the balancing ring, such as Fig.10 As shown, the control device includes: a processor 1001 and a memory 1002 configured to store a computer program that can be run on the processor;

[0159] The processor 1001 is configured to execute the method steps in the aforementioned embodiment when running a computer program.

[0160] Of course, in practical applications, Fig.10 As shown, the various components in the device are coupled together via a bus system 1003. It is understood that the bus system 1003 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1003 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Fig.10 Various buses are labeled as bus system 1003.

[0161] In practical applications, the processor may be at least one of an application-specific integrated circuit (ASIC), a digital signal processing device (DSPD), a programmable logic device (PLD), a field-programmable gate array (FPGA), a controller, a microcontroller, and a microprocessor. It is understandable that for different devices, the electronic device used to implement the functions of the processor may also be other, and the embodiments of the present application do not specifically limit this.

[0162] The above-mentioned memory can be a volatile memory (volatile memory), such as a random access memory (RAM); or a non-volatile memory (non-volatile memory), such as a read-only memory (ROM), a flash memory, a hard disk (HDD) or a solid-state drive (SSD); or a combination of the above-mentioned types of memory, and provide instructions and data to the processor.

[0163] In an exemplary embodiment, the present application also provides a computer-readable storage medium, such as a memory including a computer program, and the computer program can be executed by a processor of the washing machine to complete the steps of the aforementioned method.

[0164] It should be understood that the terms used in the present application are only for the purpose of describing specific embodiments, but are not intended to limit the present application. The singular forms of "a", "said" and "the" used in the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items. The expressions "having", "may have", "include" and "include", or "may include" and "may include" in this application can be used to indicate the presence of corresponding features (e.g., elements such as numerical values, functions, operations or components), but the presence of additional features is not excluded.

[0165] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other and are not necessarily used to describe a specific order or sequence. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.

[0166] The technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0167] In the several embodiments provided in the present application, it should be understood that the disclosed methods, devices and equipment can be implemented in other ways. The embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0168] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0169] In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be a separate unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0170] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A washing machine dehydration control method, characterized in that: The washing machine comprises a balancing ring, which is installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balancing ring. The method comprises: Obtaining a rotation speed of the washing machine; Determining that the rotation speed is greater than a rotation speed threshold, injecting a substance into the at least two boxes based on a preset first injection strategy until the amplitude is less than an amplitude threshold; Wherein, the first injection strategy includes: Selecting any one of at least two boxes as a first box, and injecting a substance into the first box; obtaining the amplitude of the washing machine; Determining that the amplitude increases, selecting other boxes that have not been injected from at least two boxes, and injecting the substance into the other boxes; Obtaining the amplitude reduction of the washing machine; Determining that the amplitude decrease is greater than or equal to a first decrease threshold, and continuing to inject the substance into the other boxes until the amplitude is less than the amplitude threshold; It is determined that the amplitude decrease is less than a first decrease threshold, and substances are injected into other boxes of the at least two boxes that have not been injected until the amplitude is less than the amplitude threshold.

2. The method according to claim 1, characterized in that: The first injection strategy also includes: Perform an injection operation for each of the at least two boxes, and increase the number of compensation times by 1; Determining that the amplitude of the washing machine is greater than an amplitude threshold, and the number of compensations is greater than or equal to a number threshold, and determining that compensation has failed; It is determined that the amplitude of the washing machine is greater than an amplitude threshold and the number of compensations is less than a number threshold, and the injection operation is repeatedly performed on the at least two boxes.

3. The method according to claim 2, characterized in that The first injection strategy also includes: Determine that compensation fails and generate an alarm message; And / or, determining that the compensation fails, controlling the washing machine to stop rotating, or controlling the washing machine to reverse.

4. The method according to claim 1, characterized in that The method further comprises: Determining that the washing machine enters a dehydration stage, and executing an eccentric balance control strategy; Wherein, the eccentric balance control strategy includes: detecting an eccentric position of the washing machine; According to the eccentric position, selecting a second box from the at least two boxes; The second housing is injected with a substance to reduce the amplitude of vibration of the washing machine.

5. The method according to claim 4, characterized in that The first injection strategy includes: Determining that the rotation speed of the washing machine is greater than the rotation speed threshold, and recording the second box that performs the injection operation; When injecting material into the at least two boxes based on the first injection strategy, a box other than the second box is selected from the at least two boxes as the first box.

6. The method according to claim 1, characterized in that The method further comprises: It is determined that the rotation speed of the washing machine is less than or equal to a rotation speed threshold, and the washing machine is controlled to inject substances into the at least two boxes based on a preset second injection strategy until the amplitude is less than the amplitude threshold.

7. The method according to claim 1, characterized in that The method further comprises: When the at least two boxes are filled and the amplitude is greater than or equal to the amplitude threshold, the washing machine is controlled to stop rotating or to reverse.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: It is determined that the amplitude is less than an amplitude threshold, and the rotation speed of the washing machine is increased to a next rotation speed step of the current rotation speed step.

9. A washing machine dehydration control device, applied to a washing machine, characterized in that: The washing machine comprises a balancing ring, which is installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balancing ring. The control device comprises: An acquisition unit, used for acquiring the rotation speed of the washing machine; a processing unit, configured to determine that the rotation speed is greater than a rotation speed threshold, and inject a substance into the at least two boxes based on a preset first injection strategy until the amplitude is less than an amplitude threshold; Wherein, the first injection strategy includes: Selecting any one of at least two boxes as a first box, and injecting a substance into the first box; obtaining the amplitude of the washing machine; Determining that the amplitude increases, selecting other boxes that have not been injected from at least two boxes, and injecting the substance into the other boxes; Obtaining the amplitude reduction of the washing machine; Determining that the amplitude decrease is greater than or equal to a first decrease threshold, and continuing to inject the substance into the other boxes until the amplitude is less than the amplitude threshold; It is determined that the amplitude decrease is less than a first decrease threshold, and substances are injected into other boxes of the at least two boxes that have not been injected until the amplitude is less than the amplitude threshold.

10. A washing machine dehydration control device, applied to a washing machine, characterized in that: The washing machine comprises a balancing ring, which is installed around the inner drum wall of the washing machine, and at least two boxes are arranged in the balancing ring. The control device comprises: a processor and a memory configured to store a computer program that can be run on the processor, wherein: The processor is configured to execute the steps of the method according to any one of claims 1 to 8 when running the computer program.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

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