Washing machine control method and device, washing machine and storage medium

Abstract

The invention relates to the technical field of washing machines, and provides a control method and device of a washing machine, the washing machine and a storage medium. Based on the washing period, the current damping force of the damper and the current elastic coefficient of the hanging spring are determined; determining an eccentric threshold value based on the current damping force and the current elastic coefficient; obtaining the eccentricity value of the washing machine, and controlling the washing machine to dewater based on the eccentricity value and the eccentricity threshold value. The current damping force and the current elastic coefficient after attenuation of the damper and the hanging spring are calculated according to the washing period (washing times) of the washing machine, the eccentric threshold value is corrected and adjusted based on the current damping force and the current elastic coefficient, and the eccentric value of the washing machine is compared with the corrected eccentric threshold value during dewatering. Therefore, the washing machine is controlled to dewater, and the problem that the washing drum impacts the box body due to attenuation of the hanging spring and the damper after long-term use is avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of washing machines, and in particular, relates to a control method, a control device, a washing machine and a storage medium for a washing machine. Background Art

[0002] In the related art, washing machines are usually set with a fixed OOB (Offset of Balance, OOB) limit, that is, the load eccentricity of the washing machine drum, and the spin speed of the washing machine is determined based on the OOB limit. However, after long-term use, the existing washing machines are prone to the defect that the movement amplitude of the washing drum increases, thereby hitting the cabinet or causing the washing machine to move. Summary of the invention

[0003] The embodiments of the present application provide a control method, a control device, a washing machine and a storage medium for a washing machine, so as to solve the problem that the washing drum of the existing washing machine is prone to hit the casing after long-term use.

[0004] In a first aspect, an embodiment of the present application provides a control method for a washing machine, wherein the washing machine comprises a housing and a washing drum disposed in the housing, wherein the housing and the washing drum are connected via a suspension spring and a damper, and the control method comprises:

[0005] Get the washing cycle of the washing machine;

[0006] Based on the washing cycle, determining a current damping force of the damper and a current elastic coefficient of the suspension spring;

[0007] Determining an eccentricity threshold based on the current damping force and the current elastic coefficient;

[0008] Obtaining an eccentricity value of the washing machine;

[0009] Based on the eccentricity value and the eccentricity threshold, the washing machine is controlled to dehydrate.

[0010] In some embodiments of the present application, determining the current damping force of the damper and the current elastic coefficient of the suspension spring based on the washing cycle includes:

[0011] Calculating the current damping force based on the washing cycle and a pre-constructed correlation function between the washing cycle and the elastic coefficient of the suspension spring;

[0012] The current elastic coefficient is calculated based on the washing cycle and a pre-constructed correlation function of the washing cycle and the damping force of the damper.

[0013] In some embodiments of the present application, determining the eccentricity threshold based on the current damping force and the current elastic coefficient includes:

[0014] When the current elastic coefficient is greater than or equal to the preset elastic coefficient, and the current damping force is greater than or equal to the preset damping force, determining the value of the eccentricity threshold to be a first threshold;

[0015] In a case where the current elastic coefficient is less than the preset elastic coefficient and the current damping force is greater than or equal to the preset damping force, or in a case where the current elastic coefficient is greater than or equal to the preset elastic coefficient and the current damping force is less than the preset damping force, determining the value of the eccentricity threshold to be a second threshold;

[0016] When the current elastic coefficient is smaller than the preset elastic coefficient and the current damping force is smaller than the preset damping force, the value of the eccentricity threshold is determined to be the second threshold; wherein the first threshold is larger than the third threshold, and the second threshold is larger than the third threshold.

[0017] In some embodiments of the present application, controlling the washing machine to dehydrate based on the eccentricity value and the eccentricity threshold comprises:

[0018] When the eccentricity value is less than the eccentricity threshold, controlling the washing machine to spin at a first speed;

[0019] When the eccentricity value is greater than or equal to the eccentricity threshold and the eccentricity value is less than a fourth threshold, the washing machine is controlled to dehydrate at a second speed; wherein the first speed is greater than the second speed.

[0020] In some embodiments of the present application, when the eccentricity value is greater than or equal to the fourth threshold value, the washing machine is controlled to stop dehydration and a warning message is sent.

[0021] In some embodiments of the present application, before obtaining the eccentricity value of the washing machine, the method further includes:

[0022] Controlling the washing machine to run at a third speed for a preset time for pre-spinning;

[0023] The washing machine is controlled to run at a fourth speed for main drying, and an eccentricity value of the washing machine is obtained; wherein the fourth speed is greater than the third speed.

[0024] In some embodiments of the present application, the washing machine further includes a motor, and the motor is used to drive the washing drum to rotate. The obtaining of the eccentricity value of the washing machine includes: obtaining a working voltage and / or a working current of the motor; and calculating the eccentricity value based on the working voltage and / or the working current.

[0025] And / or, after controlling the washing machine to dehydrate based on the eccentricity value and the eccentricity threshold, the method further includes: adding 1 to the count value of the washing cycle to update the washing cycle.

[0026] In a second aspect, an embodiment of the present application provides a control device for a washing machine, the washing machine comprising a housing and a washing drum disposed in the housing, the housing and the washing drum being connected via a suspension spring and a damper, the control device comprising:

[0027] A first acquisition module, used to acquire a washing cycle of the washing machine;

[0028] A first determination module, configured to determine a current damping force of the damper and a current elastic coefficient of the suspension spring based on the washing cycle;

[0029] A second determination module, configured to determine an eccentricity threshold based on the current damping force and the current elastic coefficient;

[0030] A second acquisition module, used to acquire the eccentricity value of the washing machine;

[0031] A control module is used to control the dehydration of the washing machine based on the eccentricity value and the eccentricity threshold.

[0032] In a third aspect, an embodiment of the present application provides a washing machine, comprising:

[0033] Box;

[0034] A washing drum connected to the housing via a suspension spring and a damper;

[0035] A motor connected to the washing tub and used to drive the washing tub to rotate;

[0036] The controller is connected to the motor and is configured to execute the control method of the washing machine described in the above embodiment.

[0037] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for controlling a washing machine as described in the above embodiment.

[0038] The control method of the washing machine provided in the embodiment of the present application comprises a housing and a washing drum arranged in the housing, the housing and the washing drum are connected by a hanging spring and a damper, and the control method comprises: obtaining the washing cycle of the washing machine; determining the current damping force of the damper and the current elastic coefficient of the hanging spring based on the washing cycle; determining the eccentricity threshold value based on the current damping force and the current elastic coefficient; obtaining the eccentricity value of the washing machine, and controlling the washing machine to dehydrate based on the eccentricity value and the eccentricity threshold value. The current damping force and the current elastic coefficient after the damper and the hanging spring are attenuated are calculated according to the washing cycle (number of washing times) of the washing machine, and the eccentricity threshold value is corrected and adjusted based on the current damping force and the current elastic coefficient, and the eccentricity value of the washing machine is compared with the corrected eccentricity threshold value during dehydration, so as to control the washing machine to dehydrate, thereby avoiding the problem that the washing drum hits the housing due to the attenuation of the hanging spring and the damper after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0040] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0041] Figure 1 Schematic diagram of the process of the washing machine control method provided in the embodiment of the present application Figure 1 .

[0042] Figure 2 Schematic diagram of the process of the washing machine control method provided in the embodiment of the present application Figure 2 .

[0043] Figure 3 Schematic diagram of the process of the washing machine control method provided in the embodiment of the present application Figure 3 .

[0044] Figure 4 A schematic diagram of the structure of a control module of a washing machine provided in an embodiment of the present application.

[0045] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0046] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0047] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0049] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] At present, the dehydration logic control algorithm of the washing machine is mainly based on the OOB limit (Offset of Balance, OOB) of multiple weighings, that is, the eccentricity of the washing machine drum load to determine the final dehydration speed. The OOB limit ensures the dehydration success rate while also requiring that the washing machine will not move and the washing drum will not hit the washing machine body.

[0052] In order to reduce vibration, washing machines are generally equipped with shock-absorbing components, which usually include suspension springs and dampers. The upper part of the washing tub is suspended inside the box through the suspension springs, and the lower part of the washing tub is connected to the box through the damper for shock absorption. As the washing machine's use cycle increases, the spring coefficient of the suspension spring and the damping force of the damper will decay, causing the movement amplitude of the washing tub to increase, thereby hitting the box or causing the washing machine to move, and generating a large working noise.

[0053] The present application provides a washing machine and a control method, a control device and a storage medium thereof, so as to solve the problem that the washing drum of the existing washing machine is easy to hit the washing machine body during dehydration after long-term use. Figure 1-5 Provide explanation.

[0054] The control method of the washing machine provided in the embodiment of the present application can be applied to the washing machine. For example, please refer to Figure 1 , Figure 1 A flow chart of a control method for a washing machine provided in an embodiment of the present application. The washing machine comprises a housing and a washing drum disposed in the housing, and the housing and the washing drum are connected via a suspension spring and a damper. The control method for the washing machine comprises:

[0055] S101: Obtaining a washing cycle of a washing machine;

[0056] Specifically, the washing cycle of the washing machine reflects the number of times the washing machine is used, and the start and end time of each washing operation can be recorded by a microprocessor built into the washing machine, thereby accumulating the washing cycles.

[0057] S102: Determine a current damping force of the damper and a current elastic coefficient of the suspension spring based on the washing cycle;

[0058] In an optional embodiment, the current damping force of the damper and the current elastic coefficient of the suspension spring are determined based on the washing cycle, including: calculating the current damping force based on the washing cycle and a pre-built washing cycle-suspension spring elastic coefficient correlation function; calculating the current elastic coefficient based on the washing cycle and a pre-built washing cycle-damper damping force correlation function.

[0059] In this embodiment, a correlation function between the washing cycle and the elastic coefficient of the suspension spring is pre-constructed through experiments and analysis, and the current elastic coefficient of the suspension spring after a certain number of uses can be calculated according to the current washing cycle and the correlation function. This correlation function can be linear or non-linear, depending on the aging characteristics of the suspension spring material.

[0060] Similarly, a correlation function between the washing cycle and the damping force of the damper can be pre-constructed through experiments and analysis, and the correlation function depends on the material and design characteristics of the damper. According to the current washing cycle and the correlation function, the current damping force of the damper after a certain number of uses can be calculated.

[0061] S103: determining an eccentricity threshold based on the current damping force and the current elastic coefficient;

[0062] According to the current damping force of the damper and the current elastic coefficient of the suspension spring, a safe eccentricity threshold is calculated as a basis for adjusting the spin speed of the washing machine or stopping the spin during the spin process.

[0063] S104: Obtaining the eccentricity value of the washing machine;

[0064] In an optional embodiment, the washing machine also includes a motor, which is used to drive the washing drum to rotate. Obtaining the eccentricity value of the washing machine includes: obtaining the working voltage and / or working current of the motor; and calculating the eccentricity value of the clothes in the washing machine based on the working voltage and / or working current.

[0065] Ideally, the motor's operating voltage and current should be stable. If there are fluctuations, it may be because the eccentricity of the washing drum causes uneven motor load. According to the characteristics of the motor, a mathematical relationship model between the operating voltage and / or operating current and the eccentricity value of the washing drum is established, and the eccentricity value is calculated by comparing the actual operating voltage and / or current with the reference value of the motor under no load or ideal load.

[0066] In addition, the eccentricity value of the clothes inside the washing machine can also be calculated by means of built-in gyroscope sensors and weight sensors, which will not be elaborated in this application.

[0067] S105: Based on the eccentricity value and the eccentricity threshold, control the washing machine to dehydrate.

[0068] The calculated eccentricity value is compared with the set eccentricity threshold value, and the spin speed is adjusted or the spin is stopped according to the comparison result.

[0069] In an alternative embodiment, reference Figure 3 As shown, based on the current damping force and the current elastic coefficient, the eccentricity threshold is determined, including:

[0070] When the current elastic coefficient is greater than or equal to the preset elastic coefficient K1, and the current damping force is greater than or equal to the preset damping force F1, it means that the performance of the suspension spring and the elastic coefficient are maintained at a good level. Therefore, a higher eccentricity threshold can be used to allow the washing drum to have a larger eccentricity during the dehydration process. At this time, the value of the eccentricity threshold is determined to be the first threshold x1.

[0071] When the current elastic coefficient is less than the preset elastic coefficient K1 and the current damping force is greater than or equal to the preset damping force F1, or, when the current elastic coefficient is greater than or equal to the preset elastic coefficient K1 and the current damping force is less than the preset damping force F1, it means that the performance of one of the suspension springs or the damper has declined, and therefore it is necessary to lower the value of the eccentricity threshold to maintain the stability of the washing machine. At this time, the value of the eccentricity threshold is determined to be the second threshold x2.

[0072] When the current elastic coefficient is less than the preset elastic coefficient K1, and the current damping force is less than the preset damping force F1, it means that the performance of the suspension spring and the damper are both reduced. Therefore, a lower eccentricity threshold is required to ensure the safety of the washing machine. At this time, the value of the eccentricity threshold is determined to be the third threshold x3; wherein the first threshold x1 is greater than the second threshold x2, and the second threshold x2 is greater than the third threshold x3.

[0073] It should be noted that the preset elastic coefficient K1 and the preset damping force F1 may be a specific value or an interval range, which is not specifically limited in this embodiment.

[0074] In an optional embodiment, based on the eccentricity value and the eccentricity threshold, controlling the washing machine to dehydrate includes: when the eccentricity value is less than the eccentricity threshold, controlling the washing machine to dehydrate at a first speed; when the eccentricity value is greater than or equal to the eccentricity threshold and the eccentricity value is less than a fourth threshold x4, controlling the washing machine to dehydrate at a second speed; wherein the first speed is greater than the second speed.

[0075] It can be understood that the fourth threshold value x4 is greater than the first threshold value x1. The fourth threshold value x4 may be a fixed value preset by the system, or a specific value determined according to the attenuation of the suspension spring and the damper, which is not specifically limited in this embodiment.

[0076] When the eccentricity value of the clothes in the washing drum is detected to be less than the eccentricity threshold, it means that the eccentricity of the clothes is within the allowable safety range. For example, when the eccentricity value of the clothes is detected to be less than the first threshold value x1, the second threshold value x2 or the third threshold value x3, the highest dehydration speed can be used to improve the dehydration efficiency; when the eccentricity value is greater than or equal to the first threshold value x1, the second threshold value x2 or the third threshold value x3, and the eccentricity value is less than the fourth threshold value x4, it means that the eccentricity of the clothes in the washing drum exceeds a certain range, but has not yet reached a level that may cause serious problems. At this time, it is necessary to reduce the dehydration speed (the second highest dehydration speed) to reduce the risk of collision. Exemplarily, the eccentricity value of the washing drum can be continuously monitored during the dehydration process, and the real-time monitored eccentricity value can be compared with the pre-set eccentricity threshold. If the eccentricity value is less than the eccentricity threshold, the first speed is maintained or set for dehydration. If the eccentricity value is greater than or equal to the eccentricity threshold but less than the fourth threshold value x4, the dehydration speed is reduced to the second speed.

[0077] Exemplarily, the washing machine may be provided with a plurality of speed gears, the first speed may be the highest speed set for the washing machine, and the second speed may be the second highest speed set for the washing machine.

[0078] Furthermore, when the eccentricity value is greater than or equal to the fourth threshold value x4, the washing machine is controlled to stop dehydration and a warning message is sent.

[0079] When it is detected that the eccentricity value is greater than or equal to the fourth threshold value x4, it means that the eccentricity of the clothes is too large, and there is a very high risk of collision between the washing drum and the washing machine body. At this time, it is necessary to control the washing machine to stop dehydration to prevent serious vibration, noise or mechanical damage caused by excessive eccentricity, and send a warning message to the user through the washing machine's display screen, sound prompt or connected mobile application.

[0080] Exemplarily, the warning information may include: the eccentricity value is too high, the washing machine needs to be checked, the clothes need to be adjusted, etc., which is not specifically limited in this embodiment.

[0081] In an optional embodiment, before obtaining the eccentricity value of the washing machine, the control method also includes: controlling the washing machine to run at a third speed for a preset time for pre-spinning; controlling the washing machine to run at a fourth speed for main spin, and obtaining the eccentricity value of the washing machine; wherein the fourth speed is greater than the third speed.

[0082] In this embodiment, after entering the dehydration program and before the formal dehydration, the washing machine is first controlled to perform pre-dehydration at the third speed. On the one hand, dehydration is performed first to reduce the water content of the clothes in the washing drum. On the other hand, the clothes in the washing drum are made looser to reduce the adhesion between the clothes, thereby reducing the risk of eccentricity during dehydration.

[0083] After the pre-spin is completed, the main spin is performed at a higher fourth speed, and the eccentricity value is obtained in real time during the spin, so that the spin speed of the washing machine can be controlled or the spin can be stopped based on the relationship between the eccentricity value and the eccentricity threshold in the subsequent spin.

[0084] Optionally, the third speed and the fourth speed may both be lower speeds (eg, lower than the first speed and the second speed), the purpose of which is to perform pre-dehydration and calculate the eccentricity value before high-speed dehydration.

[0085] In an optional embodiment, after controlling the dehydration of the washing machine based on the eccentricity value and the eccentricity threshold, the method also includes: adding 1 to the count value of the washing cycle and updating the washing cycle so that the latest washing cycle data can be used to calculate the current performance of the damper and the suspension spring during the next washing.

[0086] For example, reference Figure 2 As shown, the control method of the washing machine may include: first inputting the correlation function of the washing cycle-suspension spring elastic coefficient and the washing cycle-damper damping force, which is measured in the laboratory. When the washing machine starts working, first detect the current washing cycle of the washing machine, and then calculate the suspension spring elastic coefficient and the damping force of the damper according to the above function, and determine the eccentricity threshold. When the washing machine completes the washing program and enters the dehydration program, due to the high water content of the clothes, pre-dehydration is performed first, and then the main dehydration weighing is started to determine the eccentricity value, and based on the relationship between the eccentricity value and the eccentricity threshold, the dehydration speed of the washing machine is adjusted or the dehydration is stopped.

[0087] The control method of the washing machine provided in the embodiment of the present application comprises a housing and a washing drum arranged in the housing, the housing and the washing drum are connected by a hanging spring and a damper, and the control method comprises: obtaining the washing cycle of the washing machine; determining the current damping force of the damper and the current elastic coefficient of the hanging spring based on the washing cycle; determining the eccentricity threshold value based on the current damping force and the current elastic coefficient; obtaining the eccentricity value of the washing machine, and controlling the washing machine to dehydrate based on the eccentricity value and the eccentricity threshold value. According to the washing cycle (number of washing times) of the washing machine, the current damping force and the current elastic coefficient after the damper and the hanging spring are attenuated are calculated, and the eccentricity threshold value is corrected and adjusted based on the current damping force and the current elastic coefficient. When dehydrating, the eccentricity value of the washing machine is compared with the corrected eccentricity threshold value, so as to control the washing machine to dehydrate, thereby avoiding the problem of the washing drum hitting the housing due to the attenuation of the hanging spring and the damper after long-term use, and reducing the generation of noise.

[0088] In a second aspect, an embodiment of the present application provides a control device for a washing machine, the washing machine comprising a housing and a washing drum disposed in the housing, the housing and the washing drum being connected via a suspension spring and a damper, Figure 4 As shown, the control device includes:

[0089] A first acquisition module 401 is used to acquire a washing cycle of a washing machine;

[0090] A first determination module 402, for determining a current damping force of the damper and a current elastic coefficient of the suspension spring based on a washing cycle;

[0091] A second determination module 403 is used to determine an eccentricity threshold based on a current damping force and a current elastic coefficient;

[0092] A second acquisition module 404 is used to obtain the eccentricity value of the washing machine;

[0093] The control module 405 is used to control the dehydration of the washing machine based on the eccentricity value and the eccentricity threshold.

[0094] The control device of the washing machine of the embodiment of the present application can be applied to the washing machine and execute the steps of the control method of the washing machine of the above embodiment to control the dehydration process of the washing machine. The specific implementation method can refer to the implementation method part of the above embodiment, and this application will not repeat it again.

[0095] In a third aspect, an embodiment of the present application provides a washing machine, comprising a housing, a washing drum, a motor and a controller, wherein the washing drum is connected to the housing via a suspension spring and a damper, and the motor is connected to the washing drum for driving the washing drum to rotate; the controller is connected to the motor and configured to execute the control method of the washing machine of the above embodiment.

[0096] Optionally, the washing machine can be a drum washing machine or a washing and drying machine, which is not specifically limited in this embodiment. In some embodiments, the washing machine can be broadly understood in terms of use, such as a shoe washing machine.

[0097] Figure 5 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 5 As shown, the electronic device may include: a processor 501 (processor), a communication interface 502 (Communications Interface), a memory 503 (memory) and a bus 504, wherein the processor 501, the communication interface 502, and the memory 503 communicate with each other through the communication bus 504. The processor 501 may call the logic instructions in the memory 503 to execute the steps of the control method of the washing machine.

[0098] In addition, the logic instructions in the above-mentioned memory 503 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory 503 (ROM, Read-Only Memory), a random access memory 503 (RAM, Random Access Memory), a disk or an optical disk, and other media that can store program codes.

[0099] On the other hand, an embodiment of the present application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the control method of the washing machine provided by the above-mentioned method embodiments.

[0100] On the other hand, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by the processor 501 to execute the control method of the washing machine provided in the above embodiments.

[0101] Computer-readable storage media can be any available media or data storage devices that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0102] The device embodiments described above are merely illustrative, wherein 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, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0103] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0104] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for controlling a washing machine, characterized in that: The washing machine comprises a housing and a washing tub arranged in the housing, the housing and the washing tub are connected via a suspension spring and a damper, and the control method comprises: Get the washing cycle of the washing machine; Based on the washing cycle, determining a current damping force of the damper and a current elastic coefficient of the suspension spring; Determining an eccentricity threshold based on the current damping force and the current elastic coefficient; Obtaining an eccentricity value of the washing machine; Based on the eccentricity value and the eccentricity threshold, the washing machine is controlled to dehydrate.

2. The control method of the washing machine according to claim 1, characterized in that: The determining, based on the washing cycle, a current damping force of the damper and a current elastic coefficient of the suspension spring comprises: Calculating the current damping force based on the washing cycle and a pre-constructed correlation function between the washing cycle and the elastic coefficient of the suspension spring; The current elastic coefficient is calculated based on the washing cycle and a pre-constructed correlation function of the washing cycle and the damping force of the damper.

3. The control method of the washing machine according to claim 1, characterized in that: The determining of the eccentricity threshold based on the current damping force and the current elastic coefficient comprises: When the current elastic coefficient is greater than or equal to the preset elastic coefficient, and the current damping force is greater than or equal to the preset damping force, determining the value of the eccentricity threshold to be a first threshold; In a case where the current elastic coefficient is less than the preset elastic coefficient and the current damping force is greater than or equal to the preset damping force, or in a case where the current elastic coefficient is greater than or equal to the preset elastic coefficient and the current damping force is less than the preset damping force, determining the value of the eccentricity threshold to be a second threshold; When the current elastic coefficient is smaller than the preset elastic coefficient and the current damping force is smaller than the preset damping force, the value of the eccentricity threshold is determined to be a third threshold; wherein the first threshold is larger than the second threshold, and the second threshold is larger than the third threshold.

4. The control method of the washing machine according to claim 1, characterized in that: The controlling the washing machine to dehydrate based on the eccentricity value and the eccentricity threshold comprises: When the eccentricity value is less than the eccentricity threshold, controlling the washing machine to spin at a first speed; When the eccentricity value is greater than or equal to the eccentricity threshold and the eccentricity value is less than a fourth threshold, the washing machine is controlled to dehydrate at a second speed; wherein the first speed is greater than the second speed.

5. The control method of the washing machine according to claim 4, characterized in that: When the eccentricity value is greater than or equal to the fourth threshold value, the washing machine is controlled to stop dehydration and a warning message is sent.

6. The control method of the washing machine according to claim 1, characterized in that: Before obtaining the eccentricity value of the washing machine, the method further includes: Controlling the washing machine to run at a third speed for a preset time for pre-spinning; The washing machine is controlled to run at a fourth speed for main drying, and an eccentricity value of the washing machine is obtained; wherein the fourth speed is greater than the third speed.

7. The control method of the washing machine according to claim 1, characterized in that: The washing machine further comprises a motor, and the motor is used to drive the washing tub to rotate. The obtaining of the eccentricity value of the washing machine comprises: obtaining a working voltage and / or a working current of the motor; and calculating the eccentricity value based on the working voltage and / or the working current; And / or, after controlling the washing machine to dehydrate based on the eccentricity value and the eccentricity threshold, the method further includes: adding 1 to the count value of the washing cycle to update the washing cycle.

8. A control device for a washing machine, characterized in that: The washing machine comprises a box body and a washing tub arranged in the box body, the box body and the washing tub are connected via a suspension spring and a damper, and the control device comprises: A first acquisition module, used to acquire a washing cycle of the washing machine; A first determination module, configured to determine a current damping force of the damper and a current elastic coefficient of the suspension spring based on the washing cycle; A second determination module, configured to determine an eccentricity threshold based on the current damping force and the current elastic coefficient; A second acquisition module, used to acquire the eccentricity value of the washing machine; A control module is used to control the dehydration of the washing machine based on the eccentricity value and the eccentricity threshold.

9. A washing machine, characterized in that: include: Box; A washing drum connected to the housing via a suspension spring and a damper; A motor connected to the washing tub and used to drive the washing tub to rotate; A controller is connected to the motor and is configured to execute the control method of the washing machine according to any one of claims 1 to 7.

10. 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 control method of the washing machine as described in any one of claims 1 to 7 are implemented.

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