Washing machine control method, electronic equipment and washing machine

Abstract

The embodiment of the invention belongs to the technical field of washing machines, and particularly relates to a control method of a washing machine, electronic equipment and the washing machine, the washing machine comprises a washing drum and a spraying device, the spraying device can spray detergent to fabric in the washing drum, the control method comprises the steps that fabric attribute information is determined, and the fabric attribute information comprises fabric weight; determining a rotation strategy of a washing drum and a spraying strategy of a spraying device according to the fabric attribute information; and in a first pre-washing stage of the washing program, controlling water to enter the washing drum to a pre-washing water level, controlling the washing drum to operate according to the rotating strategy, and controlling the spraying device to spray a detergent to the fabric in the washing drum according to the spraying strategy. According to the embodiment, the spraying area of detergent foam on the surface of the fabric can be effectively increased, the utilization rate of the detergent is increased, the usage amount of the detergent is reduced, residues of the detergent on the surface of the fabric are reduced, rinsing times are reduced, and water and electricity are saved.

Description

Technical Field

[0001] This application relates to the field of washing machine technology, and in particular to a control method for a washing machine, an electronic device, and a washing machine. Background Technology

[0002] As washing machines continue to upgrade, people's demands for cleaning, sterilization, and fragrance are gradually increasing. Different substances are added to the drum at different stages of the washing process to achieve corresponding effects. In practical applications, to reduce costs and improve reliability, different substances are added through appropriate control methods without increasing the number of dispensing pumps.

[0003] To improve the washing effect on fabrics, users often use more detergent, resulting in detergent residue on the fabric after washing. Related technologies reduce detergent residue and increase rinsing efficiency by increasing the number of rinses, but this leads to wasted water and electricity. The current challenge is to improve detergent utilization, reduce detergent usage without compromising cleaning effectiveness, and simultaneously reduce detergent residue on fabrics and the number of rinses. Summary of the Invention

[0004] This application proposes a control method, electronic device, and washing machine to solve the technical problems of low detergent utilization, large detergent dosage leading to large detergent residue in fabrics, and increased rinsing times resulting in high water and electricity consumption.

[0005] According to a first aspect of the embodiments of this application, a control method for a washing machine is provided. The washing machine includes a washing drum and a spraying device, the spraying device being capable of spraying detergent onto fabrics inside the washing drum. The washing program of the washing machine includes a first pre-wash stage. The control method includes: Determine fabric attribute information, including fabric weight; The rotation strategy of the washing drum and the spraying strategy of the spraying device are determined based on the fabric property information. In the first pre-wash stage, the water supply to the washing drum is controlled to the pre-wash water level, the washing drum is controlled to operate according to the rotation strategy, and the spraying device is controlled to spray detergent onto the fabric in the washing drum according to the spraying strategy.

[0006] By using this embodiment, the rotation strategy of the washing drum and the spraying strategy of the spraying device in the first pre-washing stage can be determined according to the fabric properties, which can effectively increase the spraying area of ​​detergent foam on the fabric surface, improve the utilization rate of detergent, thereby reducing the amount of detergent used, reducing detergent residue on the fabric surface, and reducing the number of rinsing times, thus saving water and electricity.

[0007] In conjunction with the first aspect, in an optional embodiment of this application, determining the rotation strategy of the washing drum and the spraying strategy of the spraying device based on the fabric property information includes: The load level and the first target rotational speed are determined based on the weight of the fabric. The rotation mode of the washing drum at the first target rotation speed and the timing of the spraying device spraying detergent onto the fabric inside the washing drum are determined based on the load level.

[0008] In conjunction with the first aspect, in an optional embodiment of this application, determining the rotation mode of the washing drum at the first target rotation speed and the timing of the spraying device spraying detergent onto the fabric inside the washing drum based on the load level includes: When the load level is less than or equal to the preset load level, during the alternating forward and reverse rotation of the washing drum at the first target speed, the spray device is controlled to spray detergent onto the fabric inside the washing drum; and / or, When the load level is greater than the preset load level, while controlling the washing drum to rotate in a preset direction at the first target speed, the spray device is controlled to spray detergent onto the fabric inside the washing drum. After the spraying time reaches the preset time, the washing drum is controlled to slow down. During the slowdown process, the spray device is controlled to spray detergent onto the fabric inside the washing drum again.

[0009] In conjunction with the first aspect, in an optional embodiment of this application, controlling the spraying device to spray detergent again onto the fabric in the washing drum during the deceleration process includes: After the washing drum slows down to the preset speed, the spray device is controlled to spray detergent onto the fabric inside the washing drum again.

[0010] In conjunction with the first aspect, in an optional embodiment of this application, the control method further includes: the fabric weight and the first target rotation speed satisfy a preset correspondence, and the first target rotation speed corresponds to a larger weight range of the fabric weight range; Determining the first target rotational speed based on the weight of the fabric includes: determining the first target rotational speed based on the preset correspondence.

[0011] In conjunction with the first aspect, in an optional embodiment of this application, the total spraying time of the spraying device in the first pre-washing stage is related to the fabric weight, and the total spraying time corresponding to the fabric weight range with larger fabric weight is longer.

[0012] In conjunction with the first aspect, in an optional embodiment of this application, the washing program of the washing machine further includes a second pre-wash stage, and the control method further includes: After the first pre-wash stage is completed, the second pre-wash stage is performed; The second pre-washing stage includes a first tumbling process, a spraying process, and a second tumbling process performed sequentially; The first tumbling process is a process of controlling the washing drum to rotate alternately in both directions at a second target speed; the spraying process is a process of spraying detergent onto the fabric inside the washing drum while the washing drum is stationary; the second tumbling process is a process of controlling the washing drum to rotate alternately in both directions at a third target speed. Wherein: the second target speed is less than the first target speed, and the third target speed is less than the first target speed.

[0013] In conjunction with the first aspect, in one optional embodiment of this application, after the second pre-wash stage is completed, water is introduced into the washing drum to the target water level before the formal washing process begins.

[0014] According to a second aspect of the embodiments of this application, an electronic device is provided, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the washing machine control method provided in the first aspect of the embodiments of this application.

[0015] According to a third aspect of the embodiments of this application, a washing machine is provided, wherein the washing machine employs the control method provided in the first aspect of the embodiments of this application, or includes the electronic equipment provided in the second aspect of the embodiments of this application. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] Figure 1 This is one of the control flowcharts of the washing machine according to an embodiment of this application.

[0018] Figure 2 This is the second control flowchart of the washing machine according to an embodiment of this application.

[0019] Figure 3 This is a fitting curve of the first target rotational speed versus fabric weight in an embodiment of this application.

[0020] Figure 4 This application presents a control flowchart for a washing machine based on a specific example.

[0021] Figure 5 This is a structural block diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0022] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this embodiment. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this embodiment as detailed in the appended claims.

[0023] The following describes this embodiment in detail with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and examples can be combined with each other.

[0024] First, a brief introduction will be given to the subject implementing the control method in this embodiment.

[0025] The control method in this embodiment is applied to a washing machine, which can be either a top-loading washing machine or a front-loading washing machine.

[0026] The washing machine includes an outer drum and a rotatable washing drum housed within the outer drum. The outer drum serves as a water container, and the washing drum serves as a clothes handling drum. The washing drum wall has water passage holes, allowing water to flow between the washing drum and the outer drum. The washing machine also includes a water inlet device, which supplies water from an external water supply line to the outer drum through an inlet pipe; the water inlet device may be, for example, an inlet valve.

[0027] The washing machine also includes a detergent dispenser and a spray system. The detergent dispenser contains detergent, and the spray system has an inlet and an outlet. The inlet is connected to the inside of the detergent dispenser, and the outlet faces the inside of the washing drum, spraying detergent onto the drum. Specifically, the spray system uses high-pressure pre-mixing to draw in detergent, increasing the air content and creating rich foam. This foam is then sprayed onto the fabric surface, allowing it to penetrate the fabric fibers more easily. This improves detergent utilization and reduces detergent and water consumption.

[0028] The control method of this embodiment will be described in detail below.

[0029] This embodiment proposes a control method for a washing machine, referring to... Figure 1 The flowchart shows that the washing program of the washing machine includes a first pre-wash stage, and the control method includes the following steps: S11. Determine fabric property information; S12. Determine the rotation strategy of the washing drum and the spraying strategy of the spraying device based on the fabric property information; S13. In the first pre-wash stage, the water inlet to the washing drum is controlled to reach the pre-wash water level, the washing drum is controlled to operate according to the rotation strategy, and the spraying device is controlled to spray detergent onto the fabric in the washing drum according to the spraying strategy.

[0030] In this embodiment, combined with Figure 4 The flowchart shows that the washing program begins by determining the fabric properties, including fabric weight. The fabric weight is determined by weighing the fabric or by weight information input by the user. In other embodiments, the fabric property may also include fabric type, which can be input by the user or determined by acquiring fabric image information.

[0031] To increase the spray area of ​​detergent foam on the fabric surface, sufficient spray space needs to be left inside the drum. However, different fabric properties result in different drum speed control methods for leaving sufficient space inside the drum, and the spray strategies adopted based on different speed control methods are also different.

[0032] Therefore, after determining the fabric properties, the washing drum rotation strategy and the spraying strategy of the spray device need to be determined based on the fabric properties. In the first pre-wash stage of the washing program, water is first filled into the washing drum to the pre-wash water level to wet the fabric, making it easier for the fabric to adhere to the drum wall during the drum rotation, thus leaving more space inside the drum. The pre-wash water level is the water level that can wet the clothes, and it is lower than the target water level of the washing program. In a preferred embodiment, the pre-wash water level is related to the fabric weight; the larger the fabric weight, the higher the corresponding pre-wash water level.

[0033] After the washing drum is filled with water to the pre-wash water level, a predetermined washing drum rotation strategy is used to control the rotation of the washing drum. This allows for a larger space in the washing drum to increase the spray area of ​​the detergent on the fabric surface. At the same time, a predetermined spraying strategy is used to spray the detergent to obtain the optimal spraying effect, thereby further improving the utilization rate of the detergent and reducing the amount of detergent used and water consumed.

[0034] In one alternative implementation, refer to Figure 2 The flowchart describes how to determine the rotation strategy of the washing drum and the spraying strategy of the spraying device based on fabric property information, including the following steps: S21. Determine the load level and the first target rotation speed based on the fabric weight; S22. Determine the rotation mode of the washing drum at the first target speed and the timing of the spray device spraying detergent onto the fabric inside the washing drum according to the load level.

[0035] In this embodiment, combined with Figure 4The flowchart describes how, after determining the fabric weight, the load class corresponding to that weight is determined. In one example, there is a correspondence between fabric weight and load class; for instance, fabric weight between 0-5 kg ​​belongs to the low load class, and greater than 5 kg belongs to the high load class. Different load classes correspond to different first target rotation speeds, which are the rotation speeds of the washing drum during the first pre-wash stage. When the washing drum rotates at this first target rotation speed, it allows for a larger space within the washing drum for the fabric of the corresponding load class.

[0036] In one example, the fabric weight and the first target rotation speed satisfy a preset correspondence.

[0037] Specifically, the first target speed corresponding to different fabric weights is determined by testing the state under different speeds of standard load, recording the optimal first target speed at different kilogram levels of standard load, and obtaining a fitting model between fabric weight and suitable first target speed. During actual operation, the actual fabric weight collected by the motor is used as the reference and substituted into the fitting curve to calculate the suitable first target speed. For example, the correspondence between fabric weight and first target speed is shown in the table below:

[0038] It should be noted that the fabric weight in the table above refers to the negative feedback generated by the motor's uneven load distribution when the motor drives the load inside the washing drum. This value is calculated by the motor control system. Generally, for a 7kg fabric load, the motor feedback fabric weight will be within a range of 345, and this range will not overlap with the fabric weight ranges corresponding to other kilogram levels. For example, if the range representing 7kg is [310, 360], then the parameters fed back by the motor within this range will all correspond to 7kg. Similarly, 30 corresponds to 1kg, 45 corresponds to 2kg, and so on.

[0039] Based on the variation pattern of fabric weight and first target rotation speed in the table above, and combined with... Figure 3 The fitting curve between rotational speed and fabric weight shows that the larger the fabric weight range, the higher the corresponding first target rotational speed. Determining the first target rotational speed based on fabric weight includes: determining the first target rotational speed according to a preset correspondence.

[0040] This is because when the fabric weight is at a low load level, due to the smaller amount of fabric, the washing drum only needs to rotate at a lower initial target speed to leave enough spray space inside the drum. However, when the fabric weight is at a high load level, the amount of fabric is larger, and the motor speed not only needs to keep the clothes close to the drum wall, but also requires greater centrifugal force to squeeze the fabric and leave enough space inside the drum. Therefore, the washing drum needs to rotate at a higher initial target speed to ensure that there is enough space in the center of the washing drum to spray detergent foam.

[0041] After determining the load level, by adopting an appropriate rotation strategy and spraying timing of the spraying device according to the load level and the first target speed of that load level, all-round spraying of the fabric can be achieved.

[0042] In one alternative embodiment, determining the rotation mode of the washing drum at the first target rotation speed and the timing of the spraying device spraying detergent onto the fabric inside the washing drum based on the load level includes: When the load level is less than or equal to the preset load level, the washing drum is controlled to rotate alternately in both directions at the first target speed, while the spraying device sprays detergent onto the fabric inside the washing drum.

[0043] This is because when the fabric weight is at a low load level, the fabric can be rotated against the wall at a lower first target speed. At this time, the spraying device sprays detergent foam onto the fabric surface. Then, the washing drum is controlled to reverse to shake the fabric. After that, the speed is increased to the first target speed so that the fabric is in the wall state again. During this process, the fabric is continuously sprayed, thus achieving all-round spraying of the fabric.

[0044] And / or, when the load level is greater than the preset load level, while controlling the washing drum to rotate in the preset direction at the first target speed, the spray device is controlled to spray detergent onto the fabric in the washing drum. After the spraying time reaches the preset time, the washing drum is controlled to slow down. During the slowdown process, the spray device is controlled to spray detergent onto the fabric in the washing drum again.

[0045] This is because, under high load conditions, the washing drum needs to rotate at a relatively high initial target speed to achieve fabric-to-drum rotation. However, achieving high speed with fabric present requires minimal eccentricity, which is difficult and time-consuming under high load conditions. Therefore, instead of reversing the rotation direction, the drum rotates in a preset direction (e.g., forward rotation) while the drum is already at the initial target speed. After the preset spray duration, the drum speed is reduced. During this reduction, the fabric expands due to decreased centrifugal force. By controlling the acceleration of the deceleration, the drum speed is gradually reduced, allowing the fabric to expand slowly. Spraying resumes during this deceleration process, delivering detergent foam to the areas where the fabric adheres to the drum, thus compensating to some extent for the inability to reverse the rotation.

[0046] In a preferred embodiment, controlling the spray device to spray detergent onto the fabric inside the washing drum again during the deceleration process includes: after the washing drum decelerates to a preset speed, controlling the spray device to spray detergent onto the fabric inside the washing drum again.

[0047] This is because, at the beginning of the speed reduction, the fabric inside the drum is not yet loosened, and the detergent foam cannot be sprayed onto the parts of the fabric compressed by the high-speed rotation. When the drum speed decreases to the preset speed, the fabric becomes more loose, and at this point, the detergent foam can be sprayed onto the parts of the fabric compressed by the high-speed rotation. Spraying continues after the preset spin-drying speed is reached until the drum speed decreases to 0, or spraying occurs while the drum maintains the preset speed.

[0048] The preset speed is related to the diameter of the washing drum. For example, for a washing machine with a drum diameter of 542mm, when the washing drum speed is lower than 60 rpm, the fabric will no longer stick to the drum. Therefore, the preset speed is less than or equal to 60 rpm, and the process from 60 rpm to 0 rpm sprays the fabric.

[0049] In one optional embodiment, the control method further includes: the total spraying time of the spray device in the first pre-wash stage is related to the fabric weight, and the total spraying time corresponding to the larger the fabric weight range is is longer. This is because the larger the fabric weight, the larger the amount of detergent required, and correspondingly the larger the total spraying time in the first pre-wash stage. For low load levels, the total spraying time is the total spraying time during the alternating forward and reverse rotation of the washing drum. For high load levels, the total spraying time is the sum of the spraying time when the washing drum rotates at a preset speed and the spraying time during the deceleration process of the washing drum.

[0050] In one optional embodiment, the detergent washing program further includes a second pre-wash stage, and the control method further includes executing the second pre-wash stage after the first pre-wash stage ends. The second pre-wash stage includes a first tumbling process, a spraying process, and a second tumbling process executed sequentially. The first tumbling process is a process of controlling the washing drum to rotate alternately in both directions at a second target speed; the spraying process is a process of spraying detergent onto the fabric inside the washing drum while the washing drum is stationary; the second tumbling process is a process of controlling the washing drum to rotate alternately in both directions at a third target speed; wherein: the second target speed < the first target speed, and the third target speed < the first target speed.

[0051] Specifically, in combination Figure 4The flowchart illustrates that after the first pre-wash stage, water is not immediately introduced; instead, a first tumbling process is performed. During this first tumbling process, the washing drum is controlled to rotate forward and backward at a second target speed to tumble the fabric, allowing the detergent on the fabric surface to be forced into the fabric fibers. After the first tumbling process reaches a first set time, a spraying process begins. During this spraying process, the washing drum remains stationary, increasing the amount of detergent on the fabric surface and improving the washing effect. After the spraying process reaches a second set time, a second tumbling process begins. During this second tumbling process, the washing drum is controlled to rotate forward and backward at a third target speed to tumble the fabric again, further penetrating the sprayed detergent into the fabric fibers. After the third set time, the second tumbling process ends.

[0052] The second target rotational speed in the first tumbling process and the third target rotational speed in the second tumbling process can be the same or different. Since the fabric does not need to adhere to the wall in the first and second tumbling processes, both the second and third target rotational speeds are lower than the first target rotational speed.

[0053] After the second pre-wash stage, water is added to the washing drum to the target water level before the formal washing process begins. The target water level is determined based on the weight of the fabric. The formal washing process is the standard washing procedure, such as controlling the inner drum to rotate alternately in both directions at a preset washing speed and for a preset washing time.

[0054] This embodiment can significantly improve the actual utilization rate of detergent, reduce detergent residue on the fabric surface, and reduce the rinsing time of subsequent rinsing processes through such a premixed spraying method. At the same time, it can also greatly reduce the water consumption of the washing process, making it more energy-saving and water-saving.

[0055] This embodiment proposes an electronic device, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement the washing machine control method provided in the first aspect of the present application.

[0056] Specifically, such as Figure 5 As shown, the electronic device includes a processor 100, at least one communication bus 200, a user interface 300, at least one external communication interface 400, and a memory 500. The communication bus 200 is configured to enable communication between these components. The user interface 300 may include a display screen, and the external communication interface 400 may include standard wired and wireless interfaces. The memory 500 stores control methods for the washing machine. The processor 100 is used to employ the aforementioned control methods when executing the control methods for the washing machine stored in the memory 500.

[0057] This embodiment also proposes a washing machine that employs the control method described above, or includes the electronic equipment described above.

[0058] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0059] The units described as separate components may or may not be physically separate. Similarly, the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0060] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0061] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital versatile disc (DVD)), or a semiconductor medium (e.g., solid-state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiments of this application can be a non-volatile storage medium; in other words, it can be a non-transient storage medium. The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A control method for a washing machine, characterized in that, The washing machine includes a washing drum and a spray device, the spray device being able to spray detergent onto the fabrics inside the washing drum, the washing program of the washing machine including a first pre-wash stage, and the control method including: Determine fabric attribute information, including fabric weight; The rotation strategy of the washing drum and the spraying strategy of the spraying device are determined based on the fabric property information. In the first pre-wash stage, the water supply to the washing drum is controlled to the pre-wash water level, the washing drum is controlled to operate according to the rotation strategy, and the spraying device is controlled to spray detergent onto the fabric in the washing drum according to the spraying strategy.

2. The control method for a washing machine according to claim 1, characterized in that, The rotation strategy of the washing drum and the spraying strategy of the spraying device are determined based on the fabric property information, including: The load level and the first target rotational speed are determined based on the weight of the fabric. The rotation mode of the washing drum at the first target rotation speed and the timing of the spraying device spraying detergent onto the fabric inside the washing drum are determined based on the load level.

3. The control method for a washing machine according to claim 2, characterized in that, Determining the rotation mode of the washing drum at the first target rotation speed and the timing of the spraying device spraying detergent onto the fabric inside the washing drum based on the load level includes: When the load level is less than or equal to the preset load level, during the alternating forward and reverse rotation of the washing drum at the first target speed, the spray device is controlled to spray detergent onto the fabric inside the washing drum; and / or, When the load level is greater than the preset load level, while controlling the washing drum to rotate in a preset direction at the first target speed, the spray device is controlled to spray detergent onto the fabric inside the washing drum. After the spraying time reaches the preset time, the washing drum is controlled to slow down. During the slowdown process, the spray device is controlled to spray detergent onto the fabric inside the washing drum again.

4. The control method for a washing machine according to claim 3, characterized in that, During the deceleration process, the spray device is controlled to spray detergent again onto the fabrics inside the washing drum, including: After the washing drum slows down to the preset speed, the spray device is controlled to spray detergent onto the fabric inside the washing drum again.

5. The control method for a washing machine according to claim 2, characterized in that, The fabric weight and the first target rotation speed satisfy a preset correspondence, and the larger the fabric weight range, the larger the corresponding first target rotation speed. Determining the first target rotational speed based on the weight of the fabric includes: determining the first target rotational speed based on the preset correspondence.

6. The control method for a washing machine according to claim 1, characterized in that, The control method further includes: the total spraying time of the spraying device in the first pre-washing stage is related to the fabric weight, and the total spraying time is longer for the fabric weight range with larger fabric weight.

7. The control method for a washing machine according to any one of claims 1-6, characterized in that, The washing program of the washing machine further includes a second pre-wash stage, and the control method further includes: After the first pre-wash stage is completed, the second pre-wash stage is performed; The second pre-washing stage includes a first tumbling process, a spraying process, and a second tumbling process performed sequentially; The first tumbling process is a process of controlling the washing drum to rotate alternately in both directions at a second target speed; the spraying process is a process of spraying detergent onto the fabric inside the washing drum while the washing drum is stationary; the second tumbling process is a process of controlling the washing drum to rotate alternately in both directions at a third target speed. Wherein: the second target speed is less than the first target speed, and the third target speed is less than the first target speed.

8. The control method for a washing machine according to claim 7, characterized in that, After the second pre-wash stage is completed, water is introduced into the washing drum to the target water level before the formal washing process begins.

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

10. A washing machine, characterized in that, The washing machine employs the control method described in any one of claims 1-8, or includes the electronic device described in claim 9.

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