Control method and control device of washing machine, washing machine and storage medium

Abstract

The application 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, the control method comprising the following steps: acquiring a washing cycle of the washing machine; determining a current damping force of a damper and a current elastic coefficient of a suspension spring based on the washing cycle; determining an eccentric threshold based on the current damping force and the current elastic coefficient; acquiring an eccentric value of the washing machine, and controlling dehydration of the washing machine based on the eccentric value and the eccentric threshold. The current damping force and the current elastic coefficient of the damper and the suspension spring after attenuation are calculated according to the washing cycle (washing times) of the washing machine, the eccentric threshold 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 during dehydration, so that the washing machine is controlled to perform dehydration, and the problem that a washing drum collides with a box body due to attenuation of the suspension 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 particularly relates to a control method and device of a washing machine, the washing machine, and a storage medium. BACKGROUND

[0002] In related technologies, a washing machine is usually provided with a fixed OOB (Offset of Balance, OOB) limit value, i.e., a load eccentricity value of a drum of the washing machine, and a dehydration rotating speed of the washing machine is determined based on the OOB limit value. However, the existing washing machine is prone to the defect that the movement amplitude of the washing drum increases after long-term use, and thus the washing drum collides with the cabinet or displaces the washing machine. SUMMARY

[0003] Embodiments of the present application provide a control method and device of a washing machine, the washing machine, and a storage medium to solve the problem that the existing washing machine is prone to collision with the cabinet after long-term use.

[0004] In a first aspect, embodiments of the present application provide a control method of a washing machine, the washing machine comprising a cabinet and a washing drum arranged in the cabinet, the cabinet and the washing drum being connected through a suspension spring and a damper, and the control method comprising:

[0005] obtaining a washing cycle of the washing machine;

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

[0007] determining an eccentric threshold based on the current damping force and the current elastic coefficient;

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

[0009] controlling dehydration of the washing machine based on the eccentricity value and the eccentric threshold.

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

[0011] calculating the current damping force based on the washing cycle and a pre-constructed correlation function of the washing cycle-damper damping force;

[0012] calculating the current elastic coefficient based on the washing cycle and a pre-constructed correlation function of the washing cycle-suspension spring elastic coefficient.

[0013] In some embodiments of the present application, the determination of the eccentric threshold based on the current damping force and the current elastic coefficient comprises:

[0014] determining that the eccentricity threshold value is a first threshold value, in a case where the current elastic coefficient is greater than or equal to a preset elastic coefficient, and the current damping force is greater than or equal to a preset damping force;

[0015] determining that the eccentricity threshold value is a second threshold value, 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;

[0016] determining that the eccentricity threshold value is the second threshold value, in a case where the current elastic coefficient is less than the preset elastic coefficient and the current damping force is less than the preset damping force; wherein the first threshold value is greater than the third threshold value, and the second threshold value is greater than the third threshold value.

[0017] In some embodiments of the present application, the control of the washing machine dehydration based on the eccentricity value and the eccentricity threshold value includes:

[0018] controlling the washing machine to dehydrate at a first rotating speed, in a case where the eccentricity value is less than the eccentricity threshold value;

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

[0020] In some embodiments of the present application, controlling the washing machine to stop dehydrating and sending warning information, in a case where the eccentricity value is greater than or equal to the fourth threshold value.

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

[0022] controlling the washing machine to run at a third rotating speed for a preset time for pre-dehydration;

[0023] controlling the washing machine to run at a fourth rotating speed for main dehydration and obtaining the eccentricity value of the washing machine; wherein the fourth rotating speed is greater than the third rotating speed.

[0024] In some embodiments of the present application, the washing machine further includes a motor, the motor being used to drive the washing drum to rotate, and 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 the controlling the washing machine to spin-dry based on the eccentricity value and the eccentricity threshold, the method further includes: updating a count value of the washing cycle by +1 to update the washing cycle.

[0026] In a second aspect, the embodiments of the present application provide a control device of a washing machine, the washing machine comprising a cabinet and a washing drum arranged in the cabinet, the cabinet and the washing drum being connected through a suspension spring and a damper, the control device comprising:

[0027] a first obtaining module configured to obtain a washing cycle of the washing machine;

[0028] a first determining 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 determining module configured to determine an eccentricity threshold based on the current damping force and the current elastic coefficient;

[0030] a second obtaining module configured to obtain an eccentricity value of the washing machine;

[0031] a control module configured to control the washing machine to spin-dry based on the eccentricity value and the eccentricity threshold.

[0032] In a third aspect, the embodiments of the present application provide a washing machine, comprising:

[0033] a cabinet;

[0034] a washing drum connected with the cabinet through a suspension spring and a damper;

[0035] a motor connected with the washing drum and configured to drive the washing drum to rotate;

[0036] a controller connected with the motor and configured to execute the control method of the washing machine as described in the above embodiments.

[0037] In a fourth aspect, the embodiments of the present application provide a computer readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement the steps of the control method of the washing machine as described in the above embodiments.

[0038] The control method of the washing machine provided in the embodiments of the present application, the washing machine comprising a box body and a washing drum arranged in the box body, the box body and the washing drum being connected through a suspension spring and a damper, the control method comprising: obtaining a washing cycle of the washing machine; determining a current damping force of the damper and a current elastic coefficient of the suspension spring based on the washing cycle; determining an eccentric threshold based on the current damping force and the current elastic coefficient; obtaining an eccentric value of the washing machine, and controlling dehydration of the washing machine based on the eccentric value and the eccentric threshold. The current damping force and the current elastic coefficient of the damper and the suspension spring after attenuation are calculated according to the washing cycle (washing times) of the washing machine, and the eccentric threshold is corrected and adjusted based on the current damping force and the current elastic coefficient, so that the eccentric value of the washing machine is compared with the corrected eccentric threshold during dehydration, thereby controlling the washing machine to perform dehydration, and the problem that the washing drum collides with the box body due to the attenuation of the suspension spring and the damper after long-term use is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

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

[0041] Figure 1 Flowchart of the control method of the washing machine provided in the embodiments of the present application Figure 1 .

[0042] Figure 2 Flowchart of the control method of the washing machine provided in the embodiments of the present application Figure 2 .

[0043] Figure 3 Flowchart of the control method of the washing machine provided in the embodiments of the present application Figure 3 .

[0044] Figure 4 Structural diagram of the control module of the washing machine provided in the embodiments of the present application.

[0045] Figure 5 Structural diagram of the electronic device provided in the embodiments of the present application. DETAILED DESCRIPTION

[0046] The embodiments of the present application will be further described in detail below in conjunction with the drawings and embodiments. The following embodiments 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", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, 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 explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0049] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be 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, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

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

[0051] The current dehydration logic control algorithm of the washing machine mainly determines the final dehydration rotation speed according to the OOB limit value (Offset of Balance, OOB) of multiple weighing, that is, the load eccentricity value of the washing machine drum, which ensures the dehydration success rate and requires that the washing machine does not displace and the washing drum does not hit the box body of the washing machine.

[0052] To reduce vibration, a damping assembly is generally provided in the washing machine, which usually includes a suspension spring and a damper. The upper part of the washing drum is suspended inside the box body through the suspension spring, and the lower part of the washing drum is connected to the box body through the damper for damping. With the increase of the use cycle of the washing machine, the spring coefficient of the suspension spring and the damping force of the damper will decay, causing the motion amplitude of the washing drum to increase, thereby hitting the box body or displacing the washing machine, and generating a large working noise.

[0053] Embodiments of the present application provide a washing machine and a control method, a control device and a storage medium thereof, to solve the problem that the washing drum of the existing washing machine is prone to hit the box body of the washing machine during dehydration after long-term use. The following will be described in combination with the accompanying drawings. Figures 1-5

[0054] The control method of the washing machine provided by the embodiments of the present application can be applied to a washing machine. For example, please refer to Figure 1 , Figure 1 The flowchart of the control method of the washing machine provided by the embodiments of the present application is shown. The washing machine includes a box body and a washing drum arranged in the box body, and the box body and the washing drum are connected through a suspension spring and a damper. The control method of the washing machine includes:

[0055] S101: obtaining a washing cycle of the washing machine;

[0056] Specifically, the washing cycle of the washing machine reflects the number of times of use of the washing machine, which can be recorded by a microprocessor built in the washing machine to record the start and end time of each washing operation, thereby accumulating the washing cycle.

[0057] S102: determining 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, based on the washing cycle, the current damping force of the damper and the current elastic coefficient of the suspension spring are determined, including: based on the washing cycle and a pre-constructed correlation function of the washing cycle-damper damping force, the current damping force is calculated; based on the washing cycle and a pre-constructed correlation function of the washing cycle-suspension spring elastic coefficient, the current elastic coefficient is calculated.

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

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

[0061] S103: determining the 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 spring, a safe eccentricity threshold is calculated as the basis for adjusting the spin speed of the washing machine or stopping the spin process.

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

[0064] In an optional embodiment, the washing machine further comprises a motor for driving the washing drum to rotate, and obtaining the eccentricity value of the washing machine comprises: 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] In an ideal case, the working voltage and current of the motor should be stable. If there is fluctuation, it may be due to the eccentricity of the washing drum causing uneven load of the motor. According to the characteristics of the motor, a mathematical relationship model between the working voltage and / or current and the eccentricity value of the washing drum is established, and the eccentricity value is calculated by comparing the actual working 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 in the washing machine can also be calculated by means of built-in gyroscope sensors and weight sensors, which will not be described herein.

[0067] S105: controlling the spin of the washing machine based on the eccentricity value and the eccentricity threshold.

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

[0069] In an optional embodiment, referring to Figure 3 As shown in FIG. 10, determining the eccentricity threshold based on the current damping force and the current elastic coefficient comprises:

[0070] In a case that 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 is indicated that the performance of the spring and the elastic coefficient is maintained at a good level, and thus a higher eccentric threshold can be used to allow a greater eccentric amount of the washing drum in the dehydration process. At this time, the value of the eccentric threshold is determined as a first threshold x1.

[0071] In a case that 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 in a case that 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 is indicated that the performance of one of the spring and the damper is degraded, and thus the value of the eccentric threshold needs to be reduced to maintain the stability of the washing machine. At this time, the value of the eccentric threshold is determined as a second threshold x2.

[0072] In a case that 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 is indicated that the performance of the spring and the damper is degraded, and thus a lower eccentric threshold needs to be used to ensure the safety of the washing machine. At this time, the value of the eccentric threshold is determined as a third threshold x3. 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 can be a specific value or an interval range, which is not limited in the embodiment.

[0074] In an optional embodiment, the control of the dehydration of the washing machine based on the eccentric value and the eccentric threshold includes:

[0075] In a case that the eccentric value is less than the eccentric threshold, the washing machine is controlled to dehydrate at a first rotating speed; in a case that the eccentric value is greater than or equal to the eccentric threshold and less than a fourth threshold x4, the washing machine is controlled to dehydrate at a second rotating speed. The first rotating speed is greater than the second rotating speed.

[0076] It can be understood that the fourth threshold x4 is greater than the first threshold x1. The fourth threshold x4 can be a fixed value preset by the system or a specific value determined according to the attenuation of the spring and the damper, which is not limited in the embodiment.

[0077] When the detected eccentricity value of the laundry in the washing tub is less than the eccentricity threshold value, it means that the eccentricity of the laundry is within the allowed safe range, for example, when the detected eccentricity value of the laundry is less than the first threshold value x1, the second threshold value x2 or the third threshold value x3, the highest spin-drying speed can be used to improve the spin-drying 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 less than the fourth threshold value x4, it means that the eccentricity of the laundry in the washing tub exceeds a certain range, but has not reached a level that may cause serious problems, at this time, the spin-drying speed needs to be reduced (the second highest spin-drying speed) to reduce the risk of collision. Illustratively, the eccentricity value of the washing tub can be continuously monitored during the spin-drying process, and the real-time monitored eccentricity value is compared with the pre-set eccentricity threshold value, if the eccentricity value is less than the eccentricity threshold value, the first speed is maintained or set for spin-drying, if the eccentricity value is greater than or equal to the eccentricity threshold value but less than the fourth threshold value x4, the spin-drying speed is reduced to the second speed.

[0078] Illustratively, the washing machine can be provided with multiple speed gears, the first speed can be the highest speed set for the washing machine, and the second speed can be the second highest speed set for the washing machine.

[0079] Further, when the eccentricity value is greater than or equal to the fourth threshold value x4, the washing machine is controlled to stop spin-drying and send warning information.

[0080] When the detected eccentricity value is greater than or equal to the fourth threshold value x4, it means that the eccentricity of the laundry is too large, and there is a very large risk of collision between the washing tub and the washing machine box, at this time, the washing machine needs to be controlled to stop spin-drying to prevent serious vibration, noise or mechanical damage caused by the excessive eccentricity value, and warning information is sent to the user through the display screen, sound prompt or connected mobile application of the washing machine.

[0081] Illustratively, the warning information can include that the eccentricity value is too high, the washing machine needs to be checked, the position of the laundry needs to be adjusted, etc., which are not limited in the present embodiment.

[0082] In an optional embodiment, before obtaining the eccentricity value of the washing machine, the control method further comprises: controlling the washing machine to run at a third speed for a pre-set time for pre-spin-drying; controlling the washing machine to run at a fourth speed for main spin-drying and obtaining the eccentricity value of the washing machine; wherein the fourth speed is greater than the third speed.

[0083] In the present embodiment, after entering the spin-drying program, the washing machine is controlled to perform pre-spin-drying at a third speed before formal spin-drying, on the one hand, the pre-spin-drying reduces the water content of the laundry in the washing tub, on the other hand, the laundry in the washing tub is more loose, reducing the adhesion between the laundry, thereby reducing the eccentricity risk during spin-drying.

[0084] After the pre-spinning is completed, the main spinning is performed at a higher fourth rotating speed, and the eccentricity value is obtained in real time during the spinning process, so that the spinning speed of the washing machine or the spinning is stopped based on the relationship between the eccentricity value and the eccentricity threshold value in the subsequent spinning process.

[0085] Optionally, the third rotating speed and the fourth rotating speed can be both lower rotating speeds (for example, lower than the first rotating speed and the second rotating speed), which aims to perform the pre-spinning and calculate the eccentricity value before the high-speed spinning.

[0086] In an optional embodiment, after the spinning of the washing machine is controlled based on the eccentricity value and the eccentricity threshold value, the method further comprises: updating the washing cycle by adding 1 to the count value of the washing cycle, so as to use the latest washing cycle data to calculate the current performance of the damper and the suspension spring in the next washing.

[0087] Exemplarily, referring to FIG. 1, Figure 2 It is shown that the control method of the washing machine can comprise: first inputting the washing cycle-suspension spring elasticity coefficient and the washing cycle-damper damping force correlation function, which is measured in the laboratory. When the washing machine starts to work, the current washing cycle of the washing machine is first detected, and then the suspension spring elasticity coefficient and the damper damping force are calculated according to the above function, and the eccentricity threshold value is determined. When the washing machine completes the washing program and enters the spinning program, the pre-spinning is performed first due to the high water content of the clothes, and then the main spinning is performed to determine the eccentricity value, and the spinning speed of the washing machine or the spinning is stopped based on the relationship between the eccentricity value and the eccentricity threshold value.

[0088] The control method of the washing machine provided by the embodiments of the present application, the washing machine comprises a box body and a washing drum arranged in the box body, the box body and the washing drum are connected through a suspension spring and a damper, and the control method comprises: obtaining a washing cycle of the washing machine; determining a current damping force of the damper and a current elasticity coefficient of the suspension spring based on the washing cycle; determining an eccentricity threshold value based on the current damping force and the current elasticity coefficient; obtaining an eccentricity value of the washing machine, and controlling the spinning of the washing machine based on the eccentricity value and the eccentricity threshold value. According to the washing cycle (washing frequency) of the washing machine, the current damping force and the current elasticity coefficient of the damper and the suspension spring after attenuation are calculated, and the eccentricity threshold value is adjusted based on the current damping force and the current elasticity coefficient. The eccentricity value of the washing machine is compared with the adjusted eccentricity threshold value during the spinning, so that the spinning of the washing machine is controlled, and the problem that the washing drum collides with the box body due to the attenuation of the suspension spring and the damper after long-term use is avoided, and the generation of noise is reduced.

[0089] In the second aspect, the embodiments of the present application provide a control device of a washing machine, the washing machine comprising a box body and a washing drum arranged in the box body, the box body and the washing drum being connected through a suspension spring and a damper, and referring to FIG. 1, Figure 4 The control device comprises:

[0090] The first obtaining module 401 is configured to obtain a washing cycle of the washing machine.

[0091] The first determining module 402 is configured to determine a current damping force of the damper and a current elastic coefficient of the suspension spring based on the washing cycle.

[0092] The second determining module 403 is configured to determine an eccentric threshold based on the current damping force and the current elastic coefficient.

[0093] The second obtaining module 404 is configured to obtain an eccentric value of the washing machine.

[0094] The control module 405 is configured to control the dehydration of the washing machine based on the eccentric value and the eccentric threshold.

[0095] The control device of the washing machine according to the embodiments of the present application can be applied to the washing machine and perform the steps of the control method of the washing machine according to the embodiments described above to control the dehydration process of the washing machine. For the specific implementation, reference can be made to the implementation part of the embodiments described above, and the present application will not be described in detail.

[0096] In a third aspect, the embodiments of the present application provide a washing machine, which comprises a box body, a washing drum, a motor and a controller. The washing drum is connected to the box body through a suspension spring and a damper. The motor is connected to the washing drum and is configured to drive the washing drum to rotate. The controller is connected to the motor and is configured to perform the control method of the washing machine according to the embodiments described above.

[0097] Optionally, the washing machine can be a drum washing machine or a washing-drying integrated machine, and the present embodiment is not limited in this regard. In some embodiments, the washing machine can be widely understood in terms of use, such as a shoe washing machine, etc.

[0098] Figure 5 An example of a schematic diagram of the physical structure of an electronic device is shown in Figure 5 As shown, the electronic device can include a processor 501, a communications interface 502, a memory 503 and a bus 504. The processor 501, the communications interface 502 and the memory 503 can communicate with each other through the communications bus 504. The processor 501 can invoke the logical instructions in the memory 503 to perform the steps of the control method of the washing machine.

[0099] In addition, the logic instructions in the memory 503 described above can be implemented in the form of software function units and sold or used as independent products, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for causing 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 methods 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 magnetic disk or an optical disk, and various media that can store program codes.

[0100] In another aspect, the embodiments of the present application also provide 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 method embodiments.

[0101] In another aspect, the embodiments of the present application also provide a computer readable storage medium, which stores a computer program. When the computer program is executed by a processor 501, the control method of the washing machine provided by the embodiments is implemented.

[0102] The computer readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to a magnetic storage (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical storage (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid state disk (SSD)), etc.

[0103] The device embodiments described above are only schematic, and the units illustrated as separate components can or can not be physically separate, and the components illustrated as units can or can not be physical units, i.e., they can be located in one place, or distributed on multiple network units. Part or all of the modules can be selected to achieve the purposes of the embodiments according to actual needs. Those skilled in the art can understand and implement it without creative labor.

[0104] Those skilled in the art can clearly understand the implementation of the various embodiments by means of software and necessary general hardware platforms through the description of the above embodiments, and of course, the various embodiments can also be implemented by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product in essence or in the form of a part of the prior art, and the computer software product can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the method of each embodiment or some parts of the embodiment.

[0105] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0106] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method for a washing machine, characterized in that, The washing machine includes a cabinet and a washing drum disposed within the cabinet. The cabinet and the washing drum are connected by a suspension spring and a damper. The control method includes: Obtain the washing cycle of the washing machine; Based on the washing cycle, determine the current damping force of the damper and the current spring constant of the suspension spring; Based on the current damping force and the current elastic coefficient, determine the eccentricity threshold; Obtain the eccentricity value of the washing machine; The washing machine is controlled to spin-dry based on the eccentricity value and the eccentricity threshold.

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

3. The control method for a washing machine according to claim 1, characterized in that, The process of determining the eccentricity threshold based on the current damping force and the current elastic coefficient includes: If 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, the value of the eccentricity threshold is determined as the first threshold. When 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 when 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, the value of the eccentricity threshold is determined to be the second threshold. When the current elastic coefficient is less than the preset elastic coefficient and the current damping force is less than the preset damping force, the value of the eccentricity threshold is determined to be the third threshold; wherein the first threshold is greater than the second threshold, and the second threshold is greater than the third threshold.

4. The control method for a washing machine according to claim 1, characterized in that, The step of controlling the washing machine's spin-drying process based on the eccentricity value and the eccentricity threshold includes: If the eccentricity value is less than the eccentricity threshold, the washing machine is controlled to spin-dry at a first rotation speed; When the eccentricity value is greater than or equal to the eccentricity threshold and the eccentricity value is less than the fourth threshold, the washing machine is controlled to spin-dry at a second speed; wherein the first speed is greater than the second speed.

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

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

7. The control method for a washing machine according to claim 1, characterized in that, The washing machine also includes a motor, which drives the washing drum to rotate. Obtaining the eccentricity value of the washing machine includes: obtaining the operating voltage and / or operating current of the motor; and calculating the eccentricity value based on the operating voltage and / or the operating current. And / or, after controlling the washing machine to spin-dry based on the eccentricity value and the eccentricity threshold, the method further includes: incrementing the count value of the washing cycle by 1 to update the washing cycle.

8. A control device for a washing machine, characterized in that, The washing machine includes a cabinet and a washing drum disposed within the cabinet. The cabinet and the washing drum are connected by a suspension spring and a damper. The control device includes: The first acquisition module is used to acquire the washing cycle of the washing machine; The first determining module is used to determine the current damping force of the damper and the current spring constant of the suspension spring based on the washing cycle. The second determining module is used to determine the eccentricity threshold based on the current damping force and the current elastic coefficient; The second acquisition module is used to acquire the eccentricity value of the washing machine; A control module is used to control the washing machine to spin-dry based on the eccentricity value and the eccentricity threshold.

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

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the control method for the washing machine as described in any one of claims 1-7.

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