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

Abstract

The present invention provides a control method, device, storage medium, and washing machine for washing machines. The method comprises: after the washing machine is turned on, determining a first set speed value and a second set speed value according to the current target water level of the washing machine, and controlling water inlet to the washing machine according to the current target water level; after controlling water inlet to the washing machine, in a first washing stage, controlling the motor to increase speed to the first set speed value to achieve a non-spraying water flow effect, and maintaining the first set speed value for a first set maintenance time; and in a second washing stage, controlling the motor to increase speed from the first set speed value to the second set speed value to achieve a spraying water flow effect, and maintaining the second set speed value for a second set maintenance time. The solution provided by the present invention can solve the problem of uneven dissolution of detergent, improve the cleaning ratio, and improve the cleaning ability.

Description

Technical Field

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

[0002] The traditional washing method of the pulsator washing machine is prone to uneven dissolution of detergents such as washing powder, and when there are too many clothes and the water cannot completely cover the clothes, the upper layer of clothes may not be cleaned properly. This will not only cause detergent residue on the clothes, but also the cleaning ability of the pulsator washing machine will be more or less affected. Summary of the Invention

[0003] The main purpose of the present invention is to overcome the defects of the above-mentioned related technologies and provide a control method, device, storage medium and washing machine for washing machines to solve the problems of uneven dissolution of detergent and inadequate cleaning of upper clothes in the related technologies.

[0004] In one aspect, the present invention provides a method for controlling a washing machine, comprising: after the washing machine is turned on, determining a first set speed value and a second set speed value based on a current target water level of the washing machine, and controlling water inlet to the washing machine based on the current target water level; after controlling water inlet to the washing machine, in a first washing stage, controlling a motor to increase speed to the first set speed value to achieve a non-spraying water flow effect, and maintaining the first set speed value for a first set maintenance time; and in a second washing stage, controlling the motor to increase speed from the first set speed value to the second set speed value to achieve a spraying water flow effect, and maintaining the second set speed value for a second set maintenance time; wherein the first set speed value is a pre-set speed value at which water between the inner and outer tubs of the washing machine, under the action of centrifugal force, climbs between the inner and outer tubs to a critical state where it is about to spray but has not yet sprayed; and the second set speed value is a pre-set speed value at which, after reaching the first set speed value, water between the inner and outer tubs of the washing machine, under the action of centrifugal force, climbs between the inner and outer tubs to a structure of the outer tub cover to reach a spraying state.

[0005] Optionally, it also includes: in the process of controlling the motor to speed up to the first set speed value, detecting whether the current and / or voltage of the motor exceeds a preset maximum limit; if it is detected that the current and / or voltage of the motor exceeds the preset maximum limit, controlling the motor to stop speeding up, and reducing the speed to 0 within a first set maintenance time, and staying still for a preset time; and / or, in the process of controlling the motor to speed up from the first set speed value to the second set speed value, detecting whether the current and / or voltage of the motor exceeds a preset maximum limit; if it is detected that the current and / or voltage of the motor exceeds the preset maximum limit, controlling the motor to stop speeding up, and reducing the speed to the first set speed, maintaining the first set speed for a second set maintenance time, and then reducing the speed to 0, and staying still for a preset time.

[0006] Optionally, it also includes: after controlling the motor to increase the speed from the first set speed value to the second set speed value to achieve the water spraying effect, and maintaining the second set speed value for a second set maintenance time, controlling the speed of the motor to decrease from the second set speed to 0 and stay still for a preset time.

[0007] Optionally, it also includes: after a preset period of stillness, entering a third washing stage, in which the current and / or voltage of the motor is detected to see whether it exceeds a preset maximum limit; if it is detected that the current and / or voltage of the motor exceeds the preset maximum limit, the washing machine is controlled to stop washing.

[0008] Another aspect of the present invention provides a control device for a washing machine, comprising: a determination unit for determining, after the washing machine is turned on, a first set speed value and a second set speed value based on a current target water level of the washing machine; a control unit for controlling water inlet to the washing machine based on the current target water level; the control unit further configured to: after controlling water inlet to the washing machine, in a first washing stage, control the motor to increase speed to the first set speed value to achieve a non-spraying water flow effect, and maintain the first set speed value for a first set maintenance time; and in a second washing stage, control the motor to increase speed from the first set speed value to the second set speed value to achieve a spraying water flow effect, and maintain the second set speed value for a second set maintenance time; wherein the first set speed value is a pre-set speed value at which water between the inner and outer tubs of the washing machine, under the action of centrifugal force, rises between the inner and outer tubs to a critical state where it is about to spray but has not yet sprayed; and the second set speed value is a pre-set speed value at which, after reaching the first set speed value, water between the inner and outer tubs of the washing machine, under the action of centrifugal force, rises between the inner and outer tubs to the structure of the outer tub cover to reach a spraying state.

[0009] Optionally, the present invention further comprises: a first detection unit, configured to detect whether the current and / or voltage of the motor exceeds a preset maximum value when the control unit controls the motor to accelerate to the first set speed value; the control unit is further configured to: if the detection unit detects that the current and / or voltage of the motor exceeds the preset maximum value, control the motor to stop accelerating, reduce the speed to 0 within a first set maintenance time, and remain stationary for a preset time; and / or a second detection unit, configured to detect whether the current and / or voltage of the motor exceeds a preset maximum value when controlling the motor to accelerate from the first set speed value to the second set speed value;

[0010] The control unit is also used to: if the second detection unit detects that the current and / or voltage of the motor exceeds a preset maximum limit, control the motor to stop speeding up and slow down to the first set speed, maintain the first set speed for a second set maintenance time, and then drop to 0 and stay still for a preset time.

[0011] Optionally, the control unit is also used to: after controlling the motor to increase the speed from the first set speed value to the second set speed value to achieve the water spraying effect, and maintaining the second set speed value for a second set maintenance time, control the speed of the motor to decrease from the second set speed to 0 and remain stationary for a preset time.

[0012] Optionally, it also includes: a third detection unit, which is used to enter the third washing stage after a preset period of stillness, and in the third washing stage, detect whether the current and / or voltage of the motor exceeds a preset maximum limit; the control unit is also used to: if the third detection unit detects that the current and / or voltage of the motor exceeds a preset maximum limit, then control the washing machine to stop washing.

[0013] Another aspect of the present invention provides a storage medium having a computer program stored thereon, wherein the program implements the steps of any of the aforementioned methods when executed by a processor.

[0014] In another aspect, the present invention provides a washing machine, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any of the aforementioned methods when executing the program.

[0015] In another aspect, the present invention provides a washing machine, comprising any one of the aforementioned control devices.

[0016] According to the technical solution of the present invention, when the motor runs to a certain speed V1, the water between the inner and outer drums of the washing machine continues to climb under the action of centrifugal force, achieving the non-spraying water flow effect S1, and then continues to increase the speed to V2, combined with the outer drum cover structure to achieve the spraying water flow effect S2, thereby solving the problem of uneven dissolution of detergent, resulting in poor cleaning ability, and achieving the effect of improving the cleaning ratio and improving the cleaning ability; it can also improve the situation when there are too many clothes and the water cannot completely cover the clothes, resulting in residual detergent on the upper layer of clothes and inadequate cleaning.

[0017] In order to achieve the best washing effect and protect the motor from loss due to continuous overload operation in an overheated state, during the washing process, the current and / or voltage are detected throughout the process to see if they exceed the maximum value and the number of times. If the maximum value and the number of times are exceeded, the operation will be stopped to avoid the motor overload operation causing abnormal motor state, affecting the washing effect, and causing a poor user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 1 is a method diagram of an embodiment of a method for controlling a washing machine provided by the present invention;

[0020] Figure 2 is a method schematic diagram of another embodiment of the washing machine control method provided by the present invention;

[0021] Figure 3 1 is a schematic diagram of a specific embodiment of a method for controlling a washing machine provided by the present invention;

[0022] Figure 4 It is a structural block diagram of an embodiment of the control device of the washing machine provided by the present invention. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] The traditional washing method of a pulsator washing machine is prone to uneven dissolution of detergent, resulting in poor cleaning ability. When there are too many clothes and the water cannot completely cover the clothes, the upper layer of clothes may not be cleaned properly. In addition, during the washing process, if the current and voltage of the motor are too large, it is easy to wear out the motor and reduce the service life of the motor. The motor status will also affect the washing effect, resulting in a poor user experience.

[0026] The present invention provides a control method for a washing machine, which is particularly suitable for a pulsator washing machine.

[0027] Figure 1 1 is a schematic diagram of an embodiment of a method for controlling a washing machine provided by the present invention.

[0028] like Figure 1 As shown, according to one embodiment of the present invention, the control method of the washing machine includes at least step S110, step S120 and step S130.

[0029] Step S110 , after the washing machine is turned on, a first set speed value and a second set speed value are determined according to the current target water level of the washing machine, and water inlet to the washing machine is controlled according to the current target water level.

[0030] Specifically, the target water level can be determined according to a water level selected by a user, or by weighing the clothes to be washed in the washing machine.

[0031] The first set speed value is the speed limit value V1 for achieving a no-spray effect, i.e., the speed limit value capable of achieving a no-spray effect, i.e., the motor speed V1 for the first washing stage. Specifically, it is pre-set so that, under the action of centrifugal force, the water between the inner and outer tubs of the washing machine rises between the inner and outer tubs to a critical state where it is about to spray but has not yet sprayed, i.e., a no-spray water flow effect S1. When the motor speed is increased to the speed limit value V1 for achieving a no-spray effect, the water between the inner and outer tubs of the washing machine continues to rise between the inner and outer tubs under the action of centrifugal force, but the water flow only remains in a state where it is about to spray but has not yet sprayed, and almost no water flows out of the structure of the outer tub cover. The structure of the outer tub cover can specifically be the outer frame structure of the outer tub cover. The outer tub cover is mounted on the top of the outer tub and is a concentric circular cover. The outer tub cover is provided with a water guide structure (e.g., ribs) inside to guide the water flow.

[0032] The second set speed value V2 is a spray effect speed value V2, i.e., a speed value V2 capable of achieving a spray effect, i.e., a speed value V2 of the motor in the second washing stage. Specifically, it is a pre-set speed value at which, upon reaching the first set speed value, the water between the inner and outer tubs of the washing machine, under the action of centrifugal force, rises between the inner and outer tubs to a spraying state (the water between the inner and outer tubs, under the action of centrifugal force, rises to the structure of the outer tub cover to achieve a spraying state). More specifically, the spray effect speed value V2 is when, upon reaching the speed limit value for no spray effect, i.e., the water between the inner and outer tubs is in a critical state where it is about to spray but has not yet sprayed, the motor speed is increased to the spray effect speed value V2, causing the water between the inner and outer tubs to continue to rise due to the action of centrifugal force until it reaches the structure of the outer tub cover, achieving a spraying water flow effect. The spraying water flow effect S2, that is, the motor speed is further increased from the speed limit value V1 without spraying effect to the spraying effect speed value V2, so that the water between the inner and outer barrels of the washing machine continues to climb between the inner and outer barrels under the action of centrifugal force, and the water spraying effect is achieved in combination with the structure of the outer barrel cover.

[0033] The first set speed value and the second set speed value can be determined based on a predetermined correspondence between a target water level and a set speed value, that is, a correspondence between the target water level, a first speed value required for the water between the inner and outer tubs of the washing machine to climb from the target water level to a critical state where it is about to spray but not yet spraying under the action of centrifugal force, and a second speed value required for the water between the inner and outer tubs of the washing machine to climb to the structure of the outer tub cover and reach the spraying state based on the speed reaching the first speed value. Based on the correspondence, the first speed value required for the water between the inner and outer tubs of the washing machine to climb from the target water level to a critical state where it is about to spray but not yet spraying under the action of centrifugal force, and the second speed value required for the water between the inner and outer tubs of the washing machine to climb to the structure of the outer tub cover and reach the spraying state based on the speed reaching the first speed value, corresponding to the current target water level, can be obtained as the first set speed value and the second set speed value, respectively.

[0034] After determining the first set speed value and the second set speed value, the water inlet of the washing machine is controlled according to the current target water level.

[0035] Step S120, after the washing machine has completed water intake, in the first washing stage, controlling the motor to increase speed to the first set speed value to achieve a non-spraying water flow effect, and maintaining the first set speed value for a first set maintenance time.

[0036] Preferably, during the process of controlling the motor to increase its speed to the first set speed value, the motor current and / or voltage are detected to determine whether they exceed a preset maximum limit. If the motor current and / or voltage are detected to exceed the preset maximum limit, the motor is controlled to stop increasing its speed and reduce its speed to zero within a first set holding time t1, remaining stationary for a preset time. The motor current and voltage each have a different maximum limit.

[0037] Specifically, during the speed increase process when the motor speed reaches the limit value (first set speed value) V1 without the spray effect, the motor current and / or voltage are detected to see if they exceed the maximum limit. Specifically, the motor current and voltage can be detected once every preset interval within the preset detection time. When the number of times the current and / or voltage exceeds the maximum limit reaches the preset number, it is determined that the motor current and / or voltage exceeds the maximum limit. For example, within the preset detection time T = 10 minutes, if the voltage V>420V or the current I>8.5A is detected, and the number of times is ≥8 times, it is determined that the motor current and voltage exceed the maximum limit. If it is detected that the motor current and / or voltage exceeds the maximum limit, the speed increase is stopped and the speed reduction is started. Within the set maintenance time t1, the speed drops to 0 and remains stationary for a certain period of time, and then enters the general washing process, that is, conventional washing.

[0038] If it is not detected that the current and / or voltage of the motor exceeds the preset maximum limit, the motor is controlled to increase its speed to the first set speed value to achieve a non-spraying water flow effect, and the first set speed value is maintained for the first set maintenance time t1.

[0039] Specifically, if the motor current and / or voltage do not exceed the specified maximum values, the motor is controlled to continue increasing its speed to V1, achieving a non-spraying water flow effect S1, and maintaining the non-spraying speed limit V1 for a set duration t. This ensures that the clothes in the tub are fully in contact with the water that has not yet risen to the inner and outer tubs. This ensures that any clothes in the upper layer of the tub that were not fully soaked during the previous water inlet step can fully come into contact with the rotating water in the tub and be fully soaked. If there is residual detergent on the clothes in the tub that has not fully dissolved, this can also be fully dissolved in the water, ensuring a good washing effect.

[0040] Step S130, in the second washing stage, controlling the motor to increase the speed from the first set speed value to the second set speed value to achieve a water spraying effect, and maintaining the second set speed value for a second set maintenance time.

[0041] Specifically, after controlling the motor to speed up to the first set speed value to achieve the effect of no spraying water flow and maintaining the first set speed value for the first set maintenance time, the motor is controlled to speed up from the first set speed value to the second set speed value to achieve the effect of spraying water flow and maintain the second set speed value for the second set maintenance time t2.

[0042] Preferably, in the process of controlling the motor to increase the speed from the first set speed value to the second set speed value, it is detected whether the current and / or voltage of the motor exceeds the preset maximum limit; if it is detected that the current and / or voltage of the motor exceeds the maximum limit, the motor is controlled to stop increasing the speed and decelerate to the first set speed, and maintain the first set speed for the second set maintenance time, and then the speed drops to 0 and remains stationary for a preset time.

[0043] Specifically, the motor continuously increases its speed, and during the speed increase process from the non-spraying effect speed limit value V1 to the spraying effect speed value V2, the motor current and / or voltage are detected to see if they exceed the maximum value. Specifically, the motor current and voltage can be detected once every preset interval within a preset time. When the number of times the current and / or voltage exceeds the maximum value reaches a preset number, it is determined that the motor current and voltage exceed the maximum value. For example, within the preset detection time T = 10 minutes, if the voltage V>420V or the current I>8.5A is detected, and the number of times is ≥8 times, it is determined that the motor current and voltage exceed the maximum value. If it is detected that the motor current and / or voltage exceeds the maximum value, the speed increase is stopped and the speed reduction is started, and the speed is reduced to V1. Within the set maintenance time t2, the non-spraying water flow effect S1 is maintained. After the set maintenance time t2 ends, the speed is reduced to 0 and remains stationary for a certain period of time, and then enters the general washing process, that is, conventional washing.

[0044] If it is not detected that the current and / or voltage of the motor exceeds the limited maximum value, the motor is controlled to increase the speed from the first set speed value to the second set speed value to achieve the water spraying effect, and the second set speed value is maintained for the second set maintenance time.

[0045] Specifically, if the motor current and / or voltage are not detected to exceed the specified maximum value, the second stage of speed increase (i.e., the speed is increased from the non-spraying effect limit value V1 to the spraying effect value V2) is continued, and the spray water flow effect S2 is adopted to ensure the spraying effect and control the water flow rate and direction. When the motor speed is increased to the spraying effect limit value V2, the water that has climbed to the space between the inner and outer tubs in the first stage of speed increase is sprayed into the tub through the structure of the upper outer tub cover for a set maintenance time t under the action of centrifugal force, spraying the clothes in the tub. The spraying water pats the clothes and washing water in the tub, creating foam.

[0046] Optionally, after controlling the motor to increase the speed from the first set speed value to the second set speed value to achieve the water spraying effect, and maintaining the second set speed value for a second set maintenance time, it further includes: controlling the speed of the motor to decrease from the second set speed to 0 and stay still for a preset time.

[0047] That is, after the speed rises to the spray effect speed value V2, the spray water flow effect is achieved, and the set maintenance time t ends, the motor slows down, the speed drops from the second set speed value V2 to 0, and remains stationary for a certain period of time.

[0048] Figure 2 2 is a schematic diagram of another embodiment of the method for controlling a washing machine provided by the present invention.

[0049] like Figure 2As shown, according to another embodiment of the present invention, the control method of the washing machine further includes step S140 and step S150.

[0050] Step S140: After a preset rest time, the washing machine enters a third washing stage. In the third washing stage, it is detected whether the current and / or voltage of the motor exceeds a preset maximum value.

[0051] Step S150: If it is detected that the current and / or voltage of the motor exceeds the limited maximum value, the washing machine is controlled to stop washing.

[0052] The third washing stage is a general washing process, including: water intake and forward and reverse rotation of the pulsator, i.e., a regular washing stage. Specifically, in the first washing stage, during the process of controlling the motor to increase its speed to the first set speed value, if it is detected that the current and / or voltage of the motor exceeds a preset maximum limit, the motor is controlled to stop increasing its speed, and the speed is reduced to 0 within a first set holding time, and the motor remains stationary for a preset time, and then enters the third washing stage; or, in the second washing stage, during the process of controlling the motor to increase its speed from the first set speed value to the second set speed value, if it is detected that the current and / or voltage of the motor exceeds a preset maximum limit, the motor is controlled to stop increasing its speed, and the speed is reduced to the first set speed, and the motor remains stationary for a second set holding time, and then the speed is reduced to 0, and the motor remains stationary for a preset time, and then enters the third washing stage; or, after controlling the motor to increase its speed from the first set speed value to the second set speed value to achieve a water spray effect and maintain the second set speed value for a second set holding time, the motor speed is controlled to reduce the speed from the second set speed to 0, and the motor remains stationary for a preset time, and then enters the third washing stage.

[0053] During the normal washing process, the motor current and / or voltage are detected to see if they exceed the maximum limit. Specifically, the motor current and voltage can be detected once every preset interval. When the number of times the current and voltage exceed the maximum limit reaches the preset number, it is determined that the motor current and / or voltage exceed the maximum limit. For example, within the preset time T = 10 minutes, if the voltage V>420V or the current I>8.5A is detected, and the number of times is ≥8 times, it is determined that the motor current and voltage exceed the maximum limit. If it is detected that the motor current and / or voltage exceeds the maximum limit, the washing is stopped and the water is drained directly. If it is not detected that the motor current and / or voltage exceeds the maximum limit, the normal washing is carried out normally until the normal washing is completed, and the water is drained; after the drainage is completed, the water is dehydrated and the program is terminated.

[0054] In order to clearly illustrate the technical solution of the present invention, the execution process of the control method of the washing machine provided by the present invention is described below with reference to a specific embodiment.

[0055] Figure 3 FIG. 1 is a schematic diagram of a specific embodiment of the control method of a washing machine provided by the present invention. Figure 3 As shown, after the washing machine is turned on, the user selects the water level completion or weighs to determine the target water level, and then determines the current target water level; after determining the speed range V1 (speed limit value without spray effect) and V2 (speed value with spray effect) corresponding to the current target water level and setting the holding time t, the washing machine starts to fill with water. After the water filling is completed, the program starts running;

[0056] The motor speeds up and drives the inner barrel to rotate; during the speed increase process when the speed reaches the speed limit value V1 without spraying effect, the motor current and voltage are detected to see if they exceed the maximum limit (for example, within time T = 10 minutes, if voltage V>420V or current I>8.5A is detected, and the number of times is ≥8 times, then the current or voltage exceeds the maximum limit): If it is detected that the motor current and voltage exceed the maximum limit, the speed is stopped and the speed is reduced. Within the set maintenance time t, the speed drops to 0 and remains stationary for a certain period of time.

[0057] If the motor current and voltage do not exceed the specified maximum limits, the speed will continue to increase to V1, achieving the non-spraying water flow effect S1. The speed at the non-spraying limit V1 will be maintained for the set holding time t. This ensures that the clothes in the tub are fully in contact with the water that has not yet risen to the inner and outer tubs. This ensures that the upper layer of clothes in the tub, which was not fully soaked during the previous water filling step, can fully contact and be fully soaked by the rotating water in the tub. If there is any residual detergent on the clothes in the tub that has not fully dissolved, this will also allow the detergent to fully dissolve in the water, ensuring the washing effect.

[0058] The motor continues to increase its speed. During the speed increase from the non-spraying effect value V1 to the spraying effect value V2, the motor current and voltage are detected to see if they exceed the maximum limit (for example, within the time T = 10 minutes, if the voltage V>420V or the current I>8.5A is detected, and the number of times is ≥8 times, then the current or voltage exceeds the maximum limit): If it is detected that the motor current and voltage exceed the maximum limit, the speed is stopped and the speed is reduced to V1. Within the set maintenance time t, the non-spraying water flow effect S1 is maintained. After the set maintenance time t, the speed is reduced to 0 and remains stationary for a certain period of time;

[0059] If the motor current and voltage are not detected to exceed the maximum limit, the second stage of speed increase will continue (i.e., the speed will be increased from the limit value V1 without spraying effect to the speed of the spraying effect value V2) to achieve the spraying water flow effect S2, ensure the spraying effect, and control the water flow rate and direction. When the motor speed rises to the spraying effect limit value V2, the water that has climbed to the space between the inner and outer barrels in the first stage of speed increase will be sprayed into the barrel through the structure of the upper outer barrel cover within the set maintenance time t under the action of centrifugal force, spraying the clothes in the barrel, and beating the clothes and washing water in the barrel by the spraying water to create bubbles. After the set maintenance time t, the motor will slow down, the speed will drop from V2 to 0, and it will remain stationary for a certain period of time;

[0060] After the static period ends, the normal washing process is entered; during the normal washing process, the motor current and voltage are detected to see if they exceed the maximum limit (within the time T=10min, if the voltage V>420V or the current I>8.5A is detected, and the number of times is ≥8 times, then the current or voltage exceeds the maximum limit): if it is detected that the motor current and voltage exceed the maximum limit, the washing is stopped and the water is drained directly; if it is not detected that the motor current and voltage exceed the maximum limit, the normal washing is carried out normally until the normal washing is completed, and the water is drained; after the drainage is completed, the water is dehydrated and the program ends.

[0061] The present invention also provides a control device for a washing machine, which is particularly suitable for a pulsator washing machine.

[0062] Figure 4 FIG. 1 is a structural block diagram of an embodiment of a control device for a washing machine provided by the present invention. Figure 4 As shown, the control device 100 includes: a determination unit 110 and a control unit 120 .

[0063] The determination unit 110 is used to determine the first set speed value and the second set speed value according to the current target water level of the washing machine after the washing machine is turned on; the control unit 120 is used to control the water inlet of the washing machine according to the current target water level determined by the determination unit.

[0064] The first set speed value is the speed limit value V1 for achieving a no-spray effect, i.e., the speed limit value that can achieve a no-spray effect, i.e., the motor speed V1 for the first washing stage. Specifically, it is pre-set so that, under the action of centrifugal force, the water between the inner and outer tubs of the washing machine climbs between the inner and outer tubs to a critical state where it is about to spray but has not yet sprayed, i.e., a no-spray water flow effect S1. When the motor speed is increased to the speed limit value V1 for achieving a no-spray effect, the water between the inner and outer tubs of the washing machine continues to climb between the inner and outer tubs under the action of centrifugal force, but the water flow only remains in a state where it is about to spray but has not yet sprayed, and almost no water flows out of the structure of the outer tub cover. The structure of the outer tub cover can specifically be the outer frame structure of the outer tub cover. The outer tub cover is mounted on the top of the outer tub and is a concentric ring-shaped cover. The outer tub cover is provided with a water guide structure (e.g., ribs) inside to guide the water flow.

[0065] The second set speed value V2 is a spray effect speed value V2, i.e., a speed value V2 capable of achieving a spray effect, i.e., a speed value V2 of the motor in the second washing stage. Specifically, it is a pre-set speed value at which, upon reaching the first set speed value, the water between the inner and outer tubs of the washing machine, under the action of centrifugal force, rises between the inner and outer tubs to a spraying state (the water between the inner and outer tubs, under the action of centrifugal force, rises to the structure of the outer tub cover to achieve a spraying state). More specifically, the spray effect speed value V2 is when, upon reaching the speed limit value for no spray effect, i.e., the water between the inner and outer tubs is in a critical state where it is about to spray but has not yet sprayed, the motor speed is increased to the spray effect speed value V2, causing the water between the inner and outer tubs to continue to rise due to the action of centrifugal force until it reaches the structure of the outer tub cover, achieving a spraying water flow effect. The spraying water flow effect S2, that is, the motor speed is further increased from the speed limit value V1 without spraying effect to the spraying effect speed value V2, so that the water between the inner and outer barrels of the washing machine continues to climb between the inner and outer barrels under the action of centrifugal force, and the water spraying effect is achieved in combination with the structure of the outer barrel cover.

[0066] The first set speed value and the second set speed value can be determined based on a predetermined correspondence between a target water level and a set speed value, that is, a correspondence between the target water level, a first speed value required for the water between the inner and outer tubs of the washing machine to climb from the target water level to a critical state where it is about to spray but not yet spraying under the action of centrifugal force, and a second speed value required for the water between the inner and outer tubs of the washing machine to climb to the structure of the outer tub cover and reach the spraying state based on the speed reaching the first speed value. Based on the correspondence, the first speed value required for the water between the inner and outer tubs of the washing machine to climb from the target water level to a critical state where it is about to spray but not yet spraying under the action of centrifugal force, and the second speed value required for the water between the inner and outer tubs of the washing machine to climb to the structure of the outer tub cover and reach the spraying state based on the speed reaching the first speed value, corresponding to the current target water level, can be obtained as the first set speed value and the second set speed value, respectively.

[0067] The control unit 120 is further configured to: after controlling the water intake of the washing machine, in the first washing stage, control the motor to increase its speed to the first set speed value to achieve a non-spraying water flow effect, and maintain the first set speed value for a first set maintenance time.

[0068] Preferably, the device 100 may further include a first detection unit (not shown), which is configured to detect whether the current and / or voltage of the motor exceeds a preset maximum limit when the control unit 120 controls the motor to accelerate to the first set speed value; the control unit 120 is further configured to: if the first detection unit detects that the current and / or voltage of the motor exceeds the preset maximum limit, control the motor to stop accelerating, reduce the speed to 0 within a first set maintenance time t1, and remain stationary for a preset time. The current and voltage of the motor each have different maximum limits.

[0069] Specifically, during the speed increase process when the motor speed reaches the limit value (first set speed value) V1 without the spray effect, the motor current and / or voltage are detected to see if they exceed the maximum limit. Specifically, the motor current and voltage can be detected once every preset interval within the preset detection time. When the number of times the current and / or voltage exceeds the maximum limit reaches the preset number, it is determined that the motor current and / or voltage exceeds the maximum limit. For example, within the preset detection time T = 10 minutes, if the voltage V>420V or the current I>8.5A is detected, and the number of times is ≥8 times, it is determined that the motor current and voltage exceed the maximum limit. If it is detected that the motor current and / or voltage exceeds the maximum limit, the speed increase is stopped and the speed reduction is started. Within the set maintenance time t1, the speed drops to 0 and remains stationary for a certain period of time, and then enters the general washing process, that is, conventional washing.

[0070] If the first detection unit does not detect that the current and / or voltage of the motor exceeds the preset maximum limit, the control unit 120 controls the motor to increase the speed to the first set speed value to achieve a non-spraying water flow effect, and maintains the first set speed value for the first set maintenance time.

[0071] Specifically, if the motor current and / or voltage do not exceed the specified maximum values, the motor is controlled to continue increasing its speed to V1, achieving a non-spraying water flow effect S1, and maintaining the non-spraying speed limit V1 for a set duration t. This ensures that the clothes in the tub are fully in contact with the water that has not yet risen to the inner and outer tubs. This ensures that any clothes in the upper layer of the tub that were not fully soaked during the previous water inlet step can fully come into contact with the rotating water in the tub and be fully soaked. If there is residual detergent on the clothes in the tub that has not fully dissolved, this can also be fully dissolved in the water, ensuring a good washing effect.

[0072] The control unit 120 is further configured to: during the second washing stage, control the motor to increase its speed from the first set speed value to the second set speed value to achieve a water spraying effect, and maintain the second set speed value for a second set maintenance time.

[0073] Specifically, after controlling the motor to increase its speed to the first set speed value to achieve a non-spraying water flow effect and maintaining the first set speed value for a first set maintenance time, the control unit 120 controls the motor to increase its speed from the first set speed value to the second set speed value to achieve a spraying water flow effect and maintain the second set speed value for a second set maintenance time.

[0074] Preferably, the device 100 also includes a second detection unit (not shown in the figure), which is used to: detect whether the current and / or voltage of the motor exceeds a preset maximum limit during the process of controlling the motor to increase its speed from the first set speed value to the second set speed value; the control unit 120 is also used to: if the second detection unit detects that the current and / or voltage of the motor exceeds the preset maximum limit, control the motor to stop increasing its speed and decelerate to the first set speed, maintain the first set speed for a second set maintenance time, and then reduce the speed to 0 and stay stationary for a preset time.

[0075] Specifically, the motor continuously increases its speed, and during the speed increase process from the non-spraying effect speed limit value V1 to the spraying effect speed value V2, it is detected whether the motor current and / or voltage exceeds the maximum limit. Specifically, the motor current and voltage can be detected once every preset interval within a preset time. When the number of times the current and / or voltage exceeds the maximum limit reaches a preset number, it is determined that the motor current and voltage exceed the maximum limit. For example, within the preset time T = 10min, if the voltage V>420V or the current I>8.5A is detected, and the number of times is ≥8 times, it is determined that the motor current and voltage exceed the maximum limit. If it is detected that the motor current and / or voltage exceeds the maximum limit, the speed is stopped and the speed is reduced to V1. Within the set maintenance time t, the non-spraying water flow effect S1 is maintained. After the set maintenance time t, the speed is reduced to 0 and remains stationary for a certain period of time, and then enters the general washing process, that is, conventional washing.

[0076] If the second detection unit does not detect that the current and / or voltage of the motor exceeds the limited maximum value, the control unit 120 controls the motor to increase the speed from the first set speed value to the second set speed value to achieve the water spraying effect, and maintain the second set speed value for the second set maintenance time.

[0077] Specifically, if the motor current and / or voltage are not detected to exceed the specified maximum value, the second stage of speed increase (i.e., the speed is increased from the non-spraying effect limit value V1 to the spraying effect value V2) is continued, and the spray water flow effect S2 is adopted to ensure the spraying effect and control the water flow rate and direction. When the motor speed is increased to the spraying effect limit value V2, the water that has climbed to the space between the inner and outer tubs in the first stage of speed increase is subjected to centrifugal force and sprays water into the tub through the structure of the upper outer tub cover for a set maintenance time t2, spraying the clothes in the tub. The spraying water pats the clothes and washing water in the tub, creating foam.

[0078] Optionally, the control unit 120 is further used to: after controlling the motor to increase the speed from the first set speed value to the second set speed value to achieve the water spraying effect, and maintaining the second set speed value for a second set maintenance time, control the speed of the motor to decrease from the second set speed to 0 and stay still for a preset time.

[0079] That is, after the speed rises to the spray effect speed value V2, the spray water flow effect is achieved, and the set maintenance time t ends, the motor slows down, the speed drops from the second set speed value V2 to 0, and remains stationary for a certain period of time.

[0080] Optionally, the device 100 further includes a third detection unit (not shown). The third detection unit is configured to enter a third washing stage after a preset rest period, during which the motor current and / or voltage are detected to determine whether they exceed a preset maximum limit. The control unit 120 is further configured to control the washing machine to stop washing if the third detection unit detects that the motor current and / or voltage exceed the preset maximum limit.

[0081] The third washing stage is a general washing process, including: water intake and forward and reverse rotation of the pulsator, i.e., a regular washing stage. Specifically, in the first washing stage, during the process of controlling the motor to increase its speed to the first set speed value, if it is detected that the current and / or voltage of the motor exceeds a preset maximum limit, the motor is controlled to stop increasing its speed, and the speed is reduced to 0 within a first set holding time, and the motor remains stationary for a preset time, and then enters the third washing stage; or, in the second washing stage, during the process of controlling the motor to increase its speed from the first set speed value to the second set speed value, if it is detected that the current and / or voltage of the motor exceeds a preset maximum limit, the motor is controlled to stop increasing its speed, and the speed is reduced to the first set speed, and the motor remains stationary for a second set holding time, and then the speed is reduced to 0, and the motor remains stationary for a preset time, and then enters the third washing stage; or, after controlling the motor to increase its speed from the first set speed value to the second set speed value to achieve a water spray effect and maintain the second set speed value for a second set holding time, the motor speed is controlled to decrease from the second set speed to 0, and the motor remains stationary for a preset time, and then enters the third washing stage.

[0082] During the normal washing process, the motor current and / or voltage are detected to see if they exceed the maximum limit. Specifically, the motor current and voltage can be detected once every preset interval. When the number of times the current and voltage exceed the maximum limit reaches the preset number, it is determined that the motor current and / or voltage exceed the maximum limit. For example, within the preset time T = 10 minutes, if the voltage V>420V or the current I>8.5A is detected, and the number of times is ≥8 times, it is determined that the motor current and voltage exceed the maximum limit. If it is detected that the motor current and / or voltage exceeds the maximum limit, the washing is stopped and the water is drained directly. If it is not detected that the motor current and / or voltage exceeds the maximum limit, the normal washing is carried out normally until the normal washing is completed, and the water is drained; after the drainage is completed, the water is dehydrated and the program is terminated.

[0083] The present invention also provides a storage medium corresponding to the control method of the washing machine, on which a computer program is stored, and when the program is executed by a processor, the steps of any of the above methods are implemented.

[0084] The present invention also provides a washing machine corresponding to the control method of the washing machine, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any of the aforementioned methods when executing the program.

[0085] The present invention also provides a washing machine corresponding to the control device of the washing machine, comprising any of the aforementioned control devices of the washing machine.

[0086] Based on this, the solution provided by the present invention is that the motor runs at a certain speed V1 so that the water between the inner and outer drums of the washing machine continues to climb between the inner and outer drums under the action of centrifugal force, achieving the non-spraying water flow effect S1, and then continues to increase the speed to the speed V2, combined with the outer drum cover structure to achieve the spraying water flow effect S2, thereby solving the problem of uneven dissolution of detergent, resulting in poor cleaning ability, and achieving the effect of improving the cleaning ratio and improving the cleaning ability; it can also improve the situation when there are too many clothes and the water cannot completely cover the clothes, resulting in detergent residue on the upper layer of clothes and inadequate cleaning.

[0087] In order to achieve the best washing effect and protect the motor from loss due to continuous overload operation in an overheated state, during the washing process, the current and / or voltage are detected throughout the process to see if they exceed the maximum value and the number of times. If the maximum value and the number of times are exceeded, the operation will be stopped to avoid the motor overload operation causing abnormal motor state, affecting the washing effect, and causing a poor user experience.

[0088] In order to ensure the spraying effect, the segmented speed increase is set, the motor speed is limited, and the water output and water flow direction of the spray are controlled to ensure that the best spraying effect can be achieved during the continuous speed increase of the motor, solving the problems of uneven dissolution of detergent and inadequate cleaning of the upper layer of clothes, and the motor state will not be abnormal due to overload operation.

[0089] During the washing process, the current and voltage of the motor are detected to see if they exceed the specified maximum value and the specified number of times to determine whether it is appropriate for the motor to continue running, so as to protect the motor from continuing to run in an overheated state, which will cause a reduction in service life and affect the washing effect.

[0090] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. Furthermore, each functional unit may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0091] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0092] The units described as separate components may or may not be physically separate, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0093] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the relevant technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0094] The foregoing description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims.

Claims

1. A method for controlling a washing machine, characterized in that: include: After the washing machine is turned on, a first set speed value and a second set speed value are determined according to a current target water level of the washing machine, and water inlet to the washing machine is controlled according to the current target water level; After controlling the water intake of the washing machine, in a first washing stage, controlling the motor to increase speed to the first set speed value to achieve a non-spraying water flow effect, and maintaining the first set speed value for a first set holding time; In the second washing stage, the motor is controlled to increase its speed from the first set speed value to the second set speed value to achieve a water spraying effect, and the second set speed value is maintained for a second set holding time; Among them, the first set speed value is a pre-set speed value that allows the water between the inner and outer drums of the washing machine to climb between the inner and outer drums under the action of centrifugal force to a critical state of being about to spray but not yet spraying; the second set speed value is a pre-set speed value that allows the water between the inner and outer drums of the washing machine to climb between the inner and outer drums under the action of centrifugal force to reach the structure of the outer drum cover and reach the spraying state on the basis of reaching the first set speed value.

2. The method according to claim 1, characterized in that Also includes: During the process of controlling the motor to increase its speed to the first set speed value, detecting whether the current and / or voltage of the motor exceeds a preset maximum limit; If it is detected that the current and / or voltage of the motor exceeds a preset maximum value, the motor is controlled to stop increasing speed, and the speed is reduced to 0 within a first set maintenance time, and remains stationary for a preset time; and / or, During the process of controlling the motor to increase its speed from the first set speed value to the second set speed value, detecting whether the current and / or voltage of the motor exceeds a preset maximum value; If it is detected that the current and / or voltage of the motor exceeds the preset maximum limit, the motor is controlled to stop speeding up and slow down to the first set speed value. After maintaining the first set speed value for the second set maintenance time, the speed drops to 0 and remains stationary for a preset time.

3. The method according to claim 1, characterized in that Also includes: After controlling the motor to increase the speed from the first set speed value to the second set speed value to achieve the water spraying effect and maintaining the second set speed value for the second set maintenance time, the speed of the motor is controlled to decrease from the second set speed value to 0 and remain stationary for a preset time.

4. The method according to claim 2 or 3, characterized in that Also includes: After a preset rest time, the washing machine enters a third washing stage. During the third washing stage, the current and / or voltage of the motor are detected to see whether they exceed a preset maximum value. If it is detected that the current and / or voltage of the motor exceeds a preset maximum value, the washing machine is controlled to stop washing.

5. A control device for a washing machine, characterized in that: include: a determining unit, configured to determine a first set speed value and a second set speed value according to a current target water level of the washing machine after the washing machine is turned on; a control unit, configured to control water inlet to the washing machine according to the current target water level; The control unit is further configured to: after controlling the water intake of the washing machine, in a first washing stage, control the motor to increase its speed to the first set speed value to achieve a non-spraying water flow effect, and maintain the first set speed value for a first set maintenance time; In the second washing stage, the motor is controlled to increase its speed from the first set speed value to the second set speed value to achieve a water spraying effect, and the second set speed value is maintained for a second set holding time; Among them, the first set speed value is a pre-set speed value that allows the water between the inner and outer drums of the washing machine to climb between the inner and outer drums under the action of centrifugal force to a critical state of being about to spray but not yet spraying; the second set speed value is a pre-set speed value that allows the water between the inner and outer drums of the washing machine to climb between the inner and outer drums under the action of centrifugal force to reach the structure of the outer drum cover and reach the spraying state on the basis of reaching the first set speed value.

6. The control device according to claim 5, characterized in that Also includes: a first detection unit, configured to detect whether the current and / or voltage of the motor exceeds a preset maximum value when the control unit controls the motor to increase its speed to the first set speed value; The control unit is further configured to: if the detection unit detects that the current and / or voltage of the motor exceeds a preset maximum value, control the motor to stop accelerating, reduce the speed to 0 within a first set maintenance time, and remain stationary for a preset time; and / or, a second detection unit, configured to detect whether the current and / or voltage of the motor exceeds a preset maximum value during the process of controlling the motor to increase its speed from the first set speed value to the second set speed value; The control unit is also used to: if the second detection unit detects that the current and / or voltage of the motor exceeds a preset maximum limit, control the motor to stop speeding up and slow down to the first set speed value, maintain the first set speed value for a second set maintenance time, and then drop the speed to 0 and stay still for a preset time.

7. The control device according to claim 5, characterized in that The control unit is further configured to: After controlling the motor to increase the speed from the first set speed value to the second set speed value to achieve the water spraying effect and maintaining the second set speed value for the second set maintenance time, the speed of the motor is controlled to decrease from the second set speed value to 0 and remain stationary for a preset time.

8. The control device according to claim 6 or 7, characterized in that: Also includes: a third detection unit, configured to enter a third washing stage after a preset rest time, and detect whether the current and / or voltage of the motor exceeds a preset maximum value during the third washing stage; The control unit is further configured to control the washing machine to stop washing if the third detection unit detects that the current and / or voltage of the motor exceeds a preset maximum limit.

9. A storage medium, characterized in that: A computer program is stored thereon, and when the program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

10. A washing machine, characterized in that: The washing machine includes a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps of the method according to any one of claims 1 to 4 are implemented, or the washing machine includes the control device according to any one of claims 6 to 8.

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