Control method of washing equipment

Abstract

The invention relates to the technical field of clothes treatment, in particular to a control method of washing equipment, and aims to solve the problems that in the prior art, water and electricity are wasted and time is wasted in the mode of solving the clothes segregation problem through a water storage correction mode in the dehydration stage. In order to achieve the purpose, the control method comprises the steps that a target washing water level is obtained; obtaining the type of to-be-washed clothes; and controlling the type of washing water flow in the washing process of the washing equipment and / or the rotating speed of a motor in the dewatering process based on the target washing water level and the type of the to-be-washed clothes. The type of the washing water flow and the rotating speed of the motor are controlled on the basis of the target washing water level and the type of the clothes to be washed, corresponding means are adopted from the source to avoid winding, and the clothes are dispersed when being wound; therefore, eccentricity and even barrel collision caused by clothes winding in the dewatering process can be avoided, the eccentricity problem does not need to be corrected in the dewatering process, and time, electricity and water are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing, and in particular provides a control method for a washing device. Background Art

[0002] Washing machines are becoming more and more popular due to their convenience and high cleaning ratio, and more and more families are equipped with washing machines. When washing clothes with a washing machine, the clothes are usually put into a washing tub, and then water is supplied to the washing tub, and then the washing program is run according to a preset setting to wash the clothes, and then the clothes are dehydrated after washing.

[0003] However, since it is difficult to keep the size and type of multiple clothes put into the washing tub consistent each time, the water absorption capacity and movement of each piece of clothing in the washing water are different during the washing process. Clothes are easily entangled, resulting in uneven distribution of clothes in the washing tub and eccentricity, which will cause the washing tub to become unbalanced during the dehydration process and then collide with the tub.

[0004] At present, the eccentricity problem is usually discovered during the dehydration stage, and then the eccentricity correction is performed to solve the imbalance problem of the washing tub. For example, the eccentricity problem is solved by water storage correction. However, this treatment method usually requires water to be added to the washing tub after washing and dehydration or during the dehydration process, which wastes water, electricity, and time.

[0005] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention

[0006] The present invention aims to solve the above technical problem, that is, to solve the problem that the method of solving the problem of clothing segregation by water storage correction during the dehydration stage in the prior art is water-consuming, power-consuming and time-consuming.

[0007] In a first aspect, the present invention provides a control method for a washing device, characterized in that the control method includes: obtaining a target washing water level; obtaining the type of laundry to be washed; and controlling the type of washing water flow during the washing process of the washing device and / or the speed of the motor during the dehydration process based on the size of the target washing water level and the type of laundry to be washed.

[0008] In the preferred technical solution of the above control method, the step of "controlling the type of washing water flow during the washing process of the washing device and / or the speed of the motor during the dehydration process based on the size of the target washing water level and the type of the laundry" further includes:

[0009] If the target washing water level is greater than a first preset water level and the type of the laundry is heavy clothes, controlling the washing device to deliver water into the washing tub to the target washing water level;

[0010] Controlling the washing device to operate alternately with a first washing water flow and a second washing water flow;

[0011] After washing is completed and during the dehydration process, the rotation speed of the motor is controlled according to the water level in the washing tub.

[0012] In the preferred technical solution of the above control method, the step of "controlling the speed of the motor according to the water level in the washing tub" further includes:

[0013] When or after starting to drain water, controlling the motor to run at a first speed;

[0014] Obtaining the water level in the washing tub;

[0015] When the water level in the washing tub drops to a second preset water level, controlling the motor to run at a second speed;

[0016] When the water level in the washing tub drops to a third preset water level, controlling the motor to run at a third speed until the dehydration process ends;

[0017] The first speed is smaller than the second speed, and the second speed is smaller than the third speed.

[0018] In the preferred technical solution of the above control method, the step of "controlling the washing device to alternately operate with the first washing water flow and the second washing water flow" further includes:

[0019] The washing device is controlled to alternately operate in a manner that the first washing water flow operates for a first operating time and the second washing water flow operates for a second operating time.

[0020] In the preferred technical solution of the above control method, the control method further includes:

[0021] After washing is completed and before draining, the washing device is controlled to operate with the second washing water flow for a third operation time.

[0022] In the preferred technical solution of the above control method, the step of "controlling the type of washing water flow during the washing process of the washing device and / or the speed of the motor during the dehydration process based on the size of the target washing water level and the type of the laundry" further includes:

[0023] If the target washing water level is less than or equal to the first preset water level, and the type of the laundry is heavy laundry, controlling the washing device to deliver water into the washing tub to the target washing water level;

[0024] Controlling the washing equipment to run a first washing water flow;

[0025] After washing is completed and during the dehydration process, the rotation speed of the motor is controlled according to the water level in the washing tub.

[0026] In the preferred technical solution of the above control method, "controlling the speed of the motor according to the water level in the washing tub"

[0027] Acquiring the water level in the washing tub at the same time or after starting to drain water;

[0028] When the water level in the washing tub drops to a fourth preset water level, controlling the motor to run at a fourth speed;

[0029] When the water level in the washing tub drops to a fifth preset water level, controlling the motor to run at a fifth speed until the dehydration process ends;

[0030] Wherein, the fourth rotational speed is lower than the fifth rotational speed.

[0031] In the preferred technical solution of the above control method, the step of "obtaining the target washing water level" further includes:

[0032] Obtaining the weight of the laundry;

[0033] The target washing water level is determined based on the weight and a mapping relationship between the laundry weight and the washing water level.

[0034] In the preferred technical solution of the above control method, the step of "obtaining the type of laundry to be washed" further includes:

[0035] At the same time or after the water level in the washing tub reaches the target washing water level, obtaining the actual time taken for the water level in the washing tub to rise to the target washing water level;

[0036] Comparing the actual duration with a first preset duration;

[0037] The type of the laundry is determined according to the first comparison result.

[0038] In the preferred technical solution of the above control method, the step of "obtaining the type of laundry to be washed" further includes:

[0039] After the water level in the washing tub reaches the target washing water level, controlling the washing device to operate for a second preset time period, and obtaining the actual water level in the washing tub again;

[0040] Comparing the actual water level with the target washing water level;

[0041] The type of the laundry is determined according to the second comparison result.

[0042] In the technical solution of the present invention, the control method includes: obtaining the target washing water level and the type of clothes to be washed, and controlling the type of washing water flow during the washing process and / or the speed of the motor during the dehydration process of the washing device based on the size of the target washing water level and the type of clothes to be washed. The clothes to be washed are prevented from being entangled by controlling the type of washing water flow, and the clothes in the washing barrel can be dispersed by controlling the speed of the motor. That is to say, the present application prevents clothes from being entangled by adjusting the type of washing water flow from the beginning of washing, and even if a small amount of clothes are entangled during the dehydration process, the clothes can be dispersed by adjusting the speed of the motor. In this way, by taking corresponding measures from the source to avoid entanglement and dispersing the clothes when entangled, the eccentricity or even the barrel collision caused by the entanglement of clothes can be avoided during the dehydration process, so that there is no need to take other correction methods (such as water storage correction, etc.) to correct the eccentricity problem during the dehydration process. After washing, the dehydration process can be directly run to successfully complete the washing process of clothes, saving time, electricity and water.

[0043] Furthermore, if the target washing water level is greater than the first preset water level, and the type of laundry is heavy, it means that the laundry is large and heavy, and is more likely to be seriously entangled. At this time, the washing device is first controlled to deliver water to the washing tub to the target washing water level, and then washing begins. During the washing process, the washing device is controlled to alternately operate with the first washing water flow and the second washing water flow, that is, to alternately operate with the normal washing water flow and the anti-entanglement water flow, so that the laundry in the washing tub can be prevented from being entangled during the washing process, and the laundry can be dispersed in the washing water in a relatively dispersed state for washing. After washing is completed and during the dehydration process, the motor is first controlled to operate at the first speed to drive the washing tub to rotate, thereby causing the laundry to be disturbed in more washing water. Then, according to the decrease in the water level in the washing tub, the speed of the motor is increased, and then the rotation speed of the washing tub is increased, so as to avoid the entanglement of the laundry due to the reduction of washing water and limited disturbance capacity during the dehydration process. Through such a control method, when there are a lot of heavy clothes to be washed, the type of washing water flow is adjusted and the speed of the motor is adjusted according to the actual water level in the washing tub from the beginning of drainage. This can better prevent clothes from getting tangled and fundamentally avoid the occurrence of eccentricity problems. There is no need for additional correction of the eccentricity problem, effectively improving the user experience.

[0044] Furthermore, if the target washing water level is less than or equal to the first preset water level, and the type of laundry is heavy, it means that the laundry is less but heavier, and there is a possibility of entanglement. At this time, the washing device is first controlled to deliver water to the target washing water level in the washing tub, and then washing begins. During the washing process, the washing device is controlled to operate with the first washing water flow, that is, to operate with the normal washing water flow. Since there are fewer clothes, entanglement usually does not occur during the washing process. After washing is completed and drainage begins, when the water level in the washing tub drops to the fourth preset water level, the motor is controlled to operate at the fourth speed, and when the water level in the washing tub drops to the fifth preset water level, the motor speed is increased to the fifth speed. In this way, by increasing the speed of the motor, it is possible to avoid the entanglement of clothes due to the reduction of washing water and the limited winding capacity of the motor rotating at a low speed during the dehydration process. Through such a control method, when the laundry is less and heavier, the speed of the motor is adjusted mainly according to the height of the actual water level in the washing tub to avoid the entanglement of clothes, fundamentally avoid the occurrence of eccentricity problems, and no additional correction of eccentricity problems is required, effectively improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The preferred embodiment of the present invention is described below by taking a pulsator washing machine as an example and in conjunction with the accompanying drawings, in which:

[0046] Figure 1 is a flow chart of a control method for a washing device according to an embodiment of the present invention;

[0047] Figure 2 It is a flow chart of controlling the type of washing water flow and the speed of the motor when the target washing water level is greater than the first preset water level and the laundry to be washed is heavy laundry according to an embodiment of the present invention;

[0048] Figure 3 It is a flow chart of controlling the washing water flow type and the motor speed when the target washing water level is less than or equal to the first preset water level and the laundry to be washed is heavy laundry according to an embodiment of the present invention. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Although this embodiment is described by taking a pulsator washing machine as an example, it can also be applied to other washing equipment with washing functions such as a drum washing machine, a washer-dryer, and a shoe washing machine.

[0050] It should be noted that, in the description of the present invention, the terms "first" to "fifth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0051] Based on the current problem that the eccentricity problem is only discovered during the dehydration stage and then corrected by water storage correction and other methods, which leads to a waste of water, electricity and time. To this end, the present invention controls the type of washing water flow during the washing process and the speed of the motor during the dehydration process of the pulsator washing machine by the size of the target washing water level and the type of laundry to be washed, so as to avoid entanglement of the laundry, fundamentally solve the eccentricity problem, and do not need to correct the eccentricity problem during the dehydration process, saving time, electricity and water.

[0052] In the present invention, the pulsator washing machine comprises a housing, an outer tub disposed in the housing, and an inner tub disposed in the outer tub as a washing tub, the inner tub being capable of rotating relative to the outer tub. The pulsator washing machine is further equipped with a motor, a pulsator is disposed in the inner tub, and the pulsator and the inner tub are driven to rotate by the motor.

[0053] It should be noted that the washing process in the present application actually includes a washing stage and a rinsing stage in the usual sense. That is to say, the present application can achieve washing and / or rinsing of the laundry in the washing process. The motor drives the pulsator to rotate, and the rotation of the pulsator disturbs the laundry and the washing water in the inner barrel, so that the laundry rubs against each other and the washing water flushes the laundry, thereby achieving the purpose of washing and / or rinsing the laundry.

[0054] After the washing process is completed, the water is drained and the dehydration stage begins. That is to say, whether it is the washing stage or the rinsing stage, it will enter the drainage and dehydration stage after the operation is completed. In the dehydration stage, the motor drives the impeller and the inner barrel to rotate at the same time to dehydrate the clothes.

[0055] For the convenience of explanation, the following embodiments are described by taking the washing process of washing the laundry as an example.

[0056] In the present invention, the pulsator washing machine is provided with a water level detection module, through which the water level height of the washing water in the inner barrel can be obtained.

[0057] It should be noted that the water level detection module can be but not limited to a water level switch, a water level sensor, etc. Among them, the water level switch can be but not limited to a capacitive water level switch, an electronic water level switch, an electrode water level switch, a photoelectric water level switch, a tuning fork water level switch, a float water level switch, etc. The water level sensor can be a single flange static pressure / double flange differential pressure level transmitter, a float level transmitter, a magnetic level transmitter, a drop-in level transmitter, an electric internal float level transmitter, an electric buoy level transmitter, a capacitive level transmitter, a magnetostrictive level transmitter, a servo level transmitter, and other contact water level sensors, and can also be ultrasonic level transmitters, radar level transmitters, and other non-contact water level sensors.

[0058] In the present invention, the pulsator washing machine is further provided with a weight detection module, through which the weight of the laundry put into the inner barrel can be detected.

[0059] It should be noted that the weight detection module can be a weight sensor, which can be but is not limited to a photoelectric sensor, a hydraulic sensor, an electromagnetic force sensor, a capacitive sensor, a magnetic pole variation sensor, a vibration sensor, a gyroscopic sensor, an electro-negative strain sensor and other types of sensors.

[0060] Obviously, the pulsator washing machine may not be equipped with a weight detection module, but the weight of the clothes in the inner barrel is determined by detecting the working current of the pulsator. This is because the clothes put into the inner barrel are usually pressed on the pulsator. When the motor drives the pulsator to rotate, a certain working current will be generated. The pressure of the clothes on the pulsator will affect the working current of the pulsator. In this way, by detecting the working current of the pulsator, the weight of the clothes to be washed in the inner barrel can be determined. Specifically, by obtaining the working current of the pulsator motor at each rated rotation speed when the pulsator rotates at N rated rotation speeds, and then according to the corresponding relationship between the rated rotation speed, the working current and the load weight, the load weight corresponding to the working current of the pulsator motor at each rated rotation speed is obtained respectively, and the weight of the clothes in the inner barrel is determined according to the N load weights.

[0061] Without departing from the basic principles of the present application, technicians in this field can flexibly select the specific setting method of the pulsator washing machine according to the specific application scenario, as long as the weight of the laundry put into the inner drum can be accurately obtained.

[0062] In the present invention, the pulsator washing machine also includes a control module, which is respectively connected to the above-mentioned water level detection module and weight detection module, and can control the type of washing water flow during the washing process of the pulsator washing machine and the speed of the motor during the dehydration process based on the size of the target washing water level and the type of laundry to be washed, and can determine the target washing water level according to the weight of the laundry and the mapping relationship between the weight of the laundry and the washing water level, and can determine the type of laundry to be washed according to the comparison result of the actual time required for the water level in the inner drum to rise from zero to the target washing water level and the first preset time, or determine the type of laundry to be washed according to the comparison result of the actual water level in the inner drum after the water level in the inner drum rises to the target washing water level and the pulsator washing machine runs for the second preset time and the target washing water level.

[0063] It should be noted that such a control module can physically be a control chip of the pulsator washing machine itself, or a controller specifically used to execute the method of the present application, or a functional module or functional unit of a general controller.

[0064] Combine the following Figures 1 to 3 To illustrate possible implementations of the control method for the washing device of the present invention.

[0065] like Figure 1 As shown, in a possible implementation manner, the control method of the present invention includes:

[0066] S100: Obtaining a target washing water level;

[0067] S101: Obtain the type of laundry to be washed;

[0068] S102: Controlling the type of washing water flow during the washing process and the speed of the motor during the dehydration process of the pulsator washing machine based on the target washing water level and the type of laundry to be washed.

[0069] In S100, after the laundry is put into the inner tub, the target washing water level is obtained.

[0070] In a possible implementation, the weight of the laundry put into the inner tub is obtained by the weight detection module, and then the target washing water level is determined based on the weight and the mapping relationship between the laundry weight and the washing water level. Specifically, the weight of the laundry is compared with the laundry weight in the mapping relationship, and the washing water level corresponding to the successfully matched laundry weight is determined as the target washing water level, so that a more appropriate target washing water level can be determined.

[0071] It should be noted that the target washing water level may not be determined based on the mapping relationship between the weight of the clothes and the washing water level. For example, a water level database is pre-constructed, and a plurality of clothing weight ranges and the washing water levels corresponding to each weight range are pre-stored in the water level database. The weight of the clothes to be washed is matched with each weight range in the water level database to determine which weight range the weight of the clothes to be washed specifically belongs to, and then the washing water level corresponding to the weight range is determined as the target washing water level.

[0072] Of course, the target washing water level may not be determined based on the weight of the laundry. For example, the type of laundry is first obtained, and then the washing mode is determined and the gear is set according to the type of laundry. The rotation cycle, rotation acceleration and rotation angle are determined according to the gear setting information. The rotation speed is determined according to the rotation cycle, rotation angle and rotation acceleration. The corresponding target washing water level is determined according to the rotation cycle, rotation angle, rotation acceleration and rotation speed. Obviously, the user may manually input the target washing water level according to the number and thickness of the laundry observed by the naked eye. Without departing from the basic principles of the present application, those skilled in the art may flexibly select a specific method for determining the target washing water level according to the specific application scenario, as long as the appropriate target washing water level can be accurately determined.

[0073] In S101, the type of laundry put into the inner drum is obtained.

[0074] In a possible implementation, after the target washing water level is determined in S100, the pulsator washing machine is controlled to deliver water to the inner barrel, and the water level in the inner barrel is detected by the water level detection module. After the water level reaches the target washing water level, the actual time taken for the water level in the inner barrel to rise from zero to the target washing water level is obtained, and the actual time is compared with the first preset time. If the actual time is less than or equal to the first preset time, it means that during the water delivery process, the clothes in the inner barrel did not absorb much water, and most of the water was used to raise the water level in the inner barrel. The water level in the inner barrel quickly rose to the target washing water level, which also means that the type of clothes to be washed is relatively light clothes. If the actual time is greater than the first preset time, it means that during the water delivery process, the clothes in the inner barrel absorbed a lot of water, and most of the water initially delivered to the inner barrel was absorbed by the clothes to be washed, and it takes a long time for the water level in the inner barrel to rise to the target washing water level, which also means that the type of clothes to be washed is relatively heavy clothes. It should be noted that the first preset time is the standard time for the water level in the inner tub to rise from zero to the target washing water level. During the process of determining the standard time, no laundry is placed in the inner tub.

[0075] In another possible implementation, after the target washing water level is determined in S100, the pulsator washing machine is controlled to deliver water to the inner barrel, and the water level in the inner barrel is detected by the water level detection module. After the water level reaches the target washing water level, the pulsator washing machine is controlled to operate, that is, the motor is controlled to drive the pulsator to rotate to disturb the laundry to be washed, so that the laundry can absorb water more fully. After the pulsator washing machine is controlled to operate for a second preset time, for example, after the pulsator washing machine is controlled to operate for 5 minutes, the actual water level in the inner barrel is detected again by the water level detection module, and the actual water level is compared with the target washing water level. If the actual water level is less than the target washing water level, it means that the laundry continues to absorb water during the second preset time of the pulsator washing machine, and the laundry has a strong water absorption capacity, resulting in a drop in the water level in the inner barrel, which means that the type of laundry is relatively heavy. If the actual water level is greater than or equal to the target washing water level, it means that during the second preset time period of the pulsator washing machine, the laundry has basically not absorbed water and the water level in the inner barrel has basically not changed, which also means that the type of laundry is relatively light and thin clothes.

[0076] Obviously, the type of laundry can also be determined in other ways, for example, by obtaining an image of the laundry through a camera disposed in the inner tub, and then analyzing the image through image recognition technology to extract texture features of the laundry, and determining the type of the laundry based on the texture features, etc. Without departing from the basic principles of the present application, those skilled in the art can flexibly select a specific method for determining the type of laundry based on specific application scenarios, as long as the type of laundry can be accurately determined.

[0077] In S102, based on the target washing water level obtained in S100 and the type of laundry obtained in S101, the type of washing water flow during the washing process and the speed of the motor during the dehydration process of the pulsator washing machine are controlled to prevent the laundry from getting entangled during the washing and dehydration processes.

[0078] Through the above control method, corresponding measures are taken from the source to avoid the entanglement of the laundry. Even if the laundry is entangled during the dehydration process, the laundry can be dispersed, thereby avoiding the eccentricity or even collision with the barrel caused by the entanglement of the laundry during the dehydration process. There is no need to correct the eccentricity problem during the dehydration process. The dehydration process can be directly run to successfully complete the washing process of the laundry, saving time, electricity and water.

[0079] It should be noted that in S102, based on the size of the target washing water level and the type of laundry to be washed, only the type of washing water flow during the washing process of the pulsator washing machine or the speed of the motor during the dehydration process is controlled.

[0080] In a possible implementation, the target washing water level obtained in S100 is greater than the first preset water level, indicating that a large amount of laundry is put into the inner tub during this washing process. In this case, if the type of laundry obtained in S101 is heavy laundry, the type of washing water flow during the washing process and the speed of the motor during the dehydration process need to be adjusted. Figure 2 To illustrate the possible implementation methods of controlling the type of washing water flow during the washing process and the speed of the motor during the dehydration process of the pulsator washing machine when the target washing water level is greater than the first preset water level and the laundry to be washed is heavy laundry in the present application.

[0081] like Figure 2 As shown, in a possible implementation manner, the control method of the present invention further includes:

[0082] S200: Controlling the pulsator washing machine to deliver water into the inner tub to a target washing water level;

[0083] S201: Controlling the pulsator washing machine to alternately operate with a first washing water flow for a first operating time and with a second washing water flow for a second operating time;

[0084] S202: After the washing process is completed and before the water is drained, the pulsator washing machine is controlled to run with the second washing water flow for a third running time;

[0085] S203: After starting to drain water, controlling the motor to run at a first speed;

[0086] S204: Obtaining the water level in the inner barrel;

[0087] S205: Determine whether the water level is greater than a second preset water level, if so, return to execute S203, if not, execute S206;

[0088] S206: further determining whether the water level is greater than a third preset water level, if so, executing S207, if not, executing S208;

[0089] S207: Control the motor to run at a second speed;

[0090] S208: Control the motor to run at a third speed.

[0091] In S200, when the target washing water level is greater than the first preset water level and the laundry is thick and heavy, it means that the laundry is large and heavy and is more likely to be seriously entangled. At this time, the pulsator washing machine is controlled to deliver water to the inner drum to the target washing water level.

[0092] In S201, after the water level in the inner drum is raised to the target washing water level in S200, the pulsator washing machine is controlled to alternately run with the first washing water flow for a first running time and with the second washing water flow for a second running time to wash the laundry. Generally speaking, the first washing water flow is a normal washing water flow, and the second washing water flow is an anti-entanglement washing water flow. That is to say, the pulsator washing machine is controlled to first run with the normal washing water flow for a first running time to wash the clothes, and then run with the anti-entanglement washing water flow for a second running time, while washing the clothes, the clothes with a tendency to entangle are dispersed, and this is repeated until the washing is completed. For example, the first running time is 3 minutes and the second running time is 5 minutes, which means that the pulsator washing machine is controlled to alternately run with the normal washing water flow for 3 minutes and with the anti-entanglement washing water flow for 5 minutes until the washing is completed.

[0093] It should be noted that during the washing process, the inner barrel of the pulsator washing machine is usually stationary, and the motor drives the pulsator to rotate, and the water flow is disturbed by the rotation of the pulsator, thereby forming a normal washing water flow and an anti-entanglement water flow. Specifically, the type of washing water flow can be adjusted by adjusting the impeller's rotation-stop ratio. For example, when the impeller's rotation-stop ratio is 0.5 / 0.5, the water flow generated by its disturbance is a normal washing water flow. When the impeller's rotation-stop ratio is 0.3 / 0.5, the water flow generated by its disturbance is an anti-entanglement washing water flow. The above-mentioned impeller's rotation-stop ratio and the corresponding type of washing water flow are only exemplary and not restrictive. Those skilled in the art can adjust the impeller's rotation-stop ratio according to the specific application scenario, as long as the expected water flow type can be obtained.

[0094] It should be noted that in S201, the pulsator washing machine may be controlled to run with the first washing water flow for a period of time and then run with the second washing water flow for another period of time.

[0095] In S202, after washing is completed in S201 and before draining, the pulsator washing machine is controlled to run with the second washing water flow for the third running time. For example, the third running time is 5 minutes, which means that the pulsator washing machine is controlled to run with the anti-entanglement water flow for another 5 minutes, so as to disperse the entanglement that may occur during the washing process in S201 as much as possible, so as to better avoid the occurrence of clothes entanglement.

[0096] It should be noted that after washing is completed in S201, the pulsator washing machine may not be controlled to run with the second washing water flow for the third running time, that is, S202 is not executed and drainage is started directly.

[0097] In S203, after the drainage begins, the water level in the inner tub begins to drop, and the motor is controlled to run at a first speed. The motor drives the impeller and the inner tub to rotate at the same time, draining and dehydrating. Since there is still a certain liquid level in the inner tub at this time, the clothes rotate in the inner tub together with the washing water. Under the lubrication effect of the washing water and a certain centrifugal force, the clothes in the inner tub are dispersed.

[0098] It should be noted that the motor may be controlled to run at the first speed while starting to drain water.

[0099] In S204, after drainage begins and the motor is controlled to run at the first speed, that is, after S203 is executed, the water level in the inner tub will gradually decrease, and the water level in the inner tub is detected by the water level detection module.

[0100] In S205, based on the water level obtained in S204, it is determined whether the water level is greater than a second preset water level.

[0101] If the water level is greater than the second preset water level, it means that the water level in the inner barrel is still relatively high, and the motor is still controlled to run at the first speed, that is, return to execute S203 and continue to obtain the water level in the inner barrel.

[0102] If the water level is less than or equal to the second preset water level, then it is further determined whether the water level is greater than a third preset water level, that is, S206 is executed.

[0103] If the water level is greater than the third preset water level, that is, the water level is less than or equal to the second preset water level and greater than the third preset water level, it means that the current water level in the inner barrel has dropped to a relatively low level, and the lubrication effect of the washing water and the smaller centrifugal force alone are not enough to disperse the clothes. At this time, the motor is controlled to run at a relatively large second speed, that is, S207 is executed, a relatively large centrifugal force is generated by a higher speed, and the clothes are dispersed with the help of the lubrication effect of the washing water.

[0104] If the water level is less than or equal to the third preset water level, it means that the water level in the inner barrel is very low and the current second speed can no longer disperse the clothes. In this case, the motor is controlled to run at a higher third speed, that is, S208 is executed to generate a greater centrifugal force at a higher speed to disperse the clothes.

[0105] It should be noted that after the drainage begins, the speed of the motor may be controlled not according to the interval in which the water level is located, but the speed of the motor may be gradually increased as the water level decreases. For example, a speed database is pre-constructed, and a plurality of water levels and the speeds corresponding to the water levels are pre-stored in the speed database. In the speed database, the speed increases as the water level decreases, and the speed corresponding to a certain water level indicates the speed at which the clothes will not get tangled at the water level. The water level obtained in S204 is matched with the water level in the speed database, and the speed corresponding to the successfully matched water level is determined as the final motor speed. Without departing from the basic principles of the present application, those skilled in the art may flexibly select a specific method of controlling the speed of the motor according to the water level according to the specific application scenario, as long as the clothes can be prevented from getting tangled.

[0106] Through the above control method, when there are a lot of heavy clothes to be washed, the type of washing water flow is adjusted and the speed of the motor is adjusted according to the actual water level in the inner barrel from the beginning of drainage, so as to better avoid the clothes from getting tangled and fundamentally avoid the occurrence of eccentricity problems. There is no need to correct the eccentricity problem additionally, and the washing of clothes can be completed through the washing and dehydration process, effectively improving the user experience.

[0107] In a possible implementation, the target washing water level obtained in S100 is less than or equal to the first preset water level, indicating that less laundry is put into the inner tub during this washing process. In this case, if the type of laundry obtained in S101 is heavy clothing, the type of washing water flow during the washing process and the speed of the motor during the dehydration process need to be adjusted. Figure 3 To illustrate the possible implementation methods of controlling the type of washing water flow during the washing process and the speed of the motor during the dehydration process of the pulsator washing machine when the target washing water level is less than or equal to the first preset water level and the laundry to be washed is heavy laundry in the present application.

[0108] like Figure 3 As shown, in a possible implementation manner, the control method of the present invention further includes:

[0109] S300: Controlling the pulsator washing machine to deliver water into the inner barrel to a target washing water level;

[0110] S301: Control the pulsator washing machine to run a first washing water flow;

[0111] S302: After starting to drain water, obtaining the water level in the inner barrel;

[0112] S303: Determine whether the water level is greater than a fourth preset water level, if so, return to execute S302, if not, execute S304;

[0113] S304: further determining whether the water level is greater than a fifth preset water level, if so, executing S305, if not, executing S306;

[0114] S305: Control the motor to run at a fourth speed;

[0115] S306: Control the motor to run at the fifth speed.

[0116] In S300, when the target washing water level is less than or equal to the first preset water level and the laundry is thick and heavy, it means that the laundry is less but heavier and there is a possibility of entanglement. At this time, the pulsator washing machine is controlled to deliver water to the inner drum to the target washing water level.

[0117] In S301, after the water level in the inner tub is raised to the target washing water level in S300, the pulsator washing machine is controlled to run the first washing water flow, as described above, which means that the pulsator washing machine is controlled to run with a normal washing water flow until washing is completed.

[0118] It should be noted that, similar to the above, the type of washing water flow can be adjusted by adjusting the rotation-stop ratio of the impeller. For example, when the rotation-stop ratio of the impeller is 0.5 / 0.5, the water flow generated by its disturbance is a normal washing water flow. The above-mentioned rotation-stop ratio of the impeller and the type of washing water flow corresponding to it are only exemplary and not restrictive. Those skilled in the art can adjust the rotation-stop ratio of the impeller according to specific application scenarios, as long as a normal washing water flow can be obtained and the washing of clothes can be achieved.

[0119] In S302, after washing in S301 is completed, drainage begins. After drainage begins, the water level in the inner tub begins to drop, and the water level in the inner tub is detected by the water level detection module.

[0120] In S303, based on the water level obtained in S302, it is determined whether the water level is greater than a fourth preset water level.

[0121] If the water level is greater than the fourth preset water level, it means that the current water level in the inner barrel is still relatively high, and there are not many clothes in the inner barrel. The lubricating effect of the washing water can make the clothes dispersed. At this time, the water level in the inner barrel continues to be detected by the above-mentioned water level detection module, which means returning to execute S302.

[0122] If the water level is less than or equal to the fourth preset water level, it is further determined whether the water level is greater than the fifth preset water level, that is, S304 is executed.

[0123] If the water level is greater than the fifth preset water level, that is, the water level is less than or equal to the fourth preset water level and greater than the fifth preset water level, it means that the current water level in the inner drum has dropped to a relatively low level, and the lubricating effect of the washing water alone is not enough to disperse the clothes. At this time, the motor is controlled to run at the fourth speed, that is, S305 is executed, and the motor drives the inner drum to rotate to form a certain centrifugal force, and with the help of the lubricating effect of the washing water, the clothes are dispersed.

[0124] If the water level is less than or equal to the fifth preset water level, it means that the current water level in the inner barrel is very low, and the current fourth speed can no longer disperse the clothes. At this time, the motor is controlled to run at a higher fifth speed, that is, S306 is executed to generate a greater centrifugal force at a higher speed to disperse the clothes.

[0125] It should be noted that the fourth preset water level can be the same as the second preset water level, or different from it, and the fourth rotation speed can be the same as the first rotation speed, or different from it. The fifth preset water level can be the same as the third preset water level, or different from it, and the fifth rotation speed can be the same as the third rotation speed, or different from it.

[0126] It should be noted that after the drainage begins, the speed of the motor may be controlled not according to the interval in which the water level is located, but the speed of the motor may be gradually increased as the water level decreases. For example, similar to the above, a speed database is pre-constructed, and a plurality of water levels and the speeds corresponding to each water level are pre-stored in the speed database. In the speed database, the speed increases as the water level decreases, and the speed corresponding to a certain water level indicates the speed at which the clothes will not get tangled at this water level. The water level obtained in S302 is matched with the water level in the speed database, and the speed corresponding to the successfully matched water level is determined as the final motor speed. Without departing from the basic principles of the present application, those skilled in the art may flexibly select a specific method of controlling the speed of the motor according to the water level according to the specific application scenario, as long as the clothes can be prevented from getting tangled.

[0127] Through the above control method, when the laundry to be washed is small and heavy, the speed of the motor is adjusted according to the actual water level in the inner drum to avoid the clothes from getting tangled, thereby fundamentally avoiding the occurrence of eccentricity problems. There is no need to additionally correct the eccentricity problem, and the washing of clothes can be completed through normal washing and dehydration processes, effectively improving the user experience.

[0128] It should be noted that if the type of laundry obtained in S101 is light and thin laundry, then no matter the target washing water level is greater than the first preset water level, or less than or equal to the first preset water level, the washing mode is pre-set. The washing mode may be manually set by the user, or may be automatically determined by the pulsator washing machine based on the weight and type of laundry. The present invention does not limit the specific method of determining the washing mode in this case.

[0129] In summary, in the preferred technical solution of the present invention, the type of washing water flow during the washing process and the speed of the motor during the dehydration process of the pulsator washing machine are controlled based on the size of the target washing water level and the type of laundry to be washed. The type of washing water flow is controlled to avoid entanglement of the laundry to be washed, and the speed of the motor is controlled to disperse the clothes in the inner barrel, thereby avoiding eccentricity or even barrel collision caused by entanglement of the clothes during the dehydration process. There is no need to correct the eccentricity problem during the dehydration process. After washing, the dehydration process can be directly run to successfully complete the washing process of the clothes, saving time, electricity and water. By determining the target washing water level based on the weight of the laundry to be washed and the mapping relationship between the weight of the clothes and the washing water level, the appropriate washing water level can be accurately determined. Whether the laundry is heavy or light is determined based on a comparison between the actual time taken for the water level in the inner tub to rise to the target washing water level and the first preset time, or whether the laundry is heavy or light is determined based on a comparison between the actual water level after the water level in the inner tub rises to the target washing water level and the pulsator washing machine runs for a second preset time and the target washing water level, thereby accurately judging the type of laundry.

[0130] Although the various steps in the above embodiment are described in the above-mentioned chronological order, those skilled in the art can understand that in order to achieve the effect of this embodiment, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in a reverse order. These simple changes are within the scope of protection of this application.

[0131] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A method for controlling a washing device, characterized in that: The control method comprises: Obtaining a target washing water level; Get the type of laundry to be washed; The type of washing water flow during the washing process and / or the speed of the motor during the dehydration process of the washing device are controlled based on the size of the target washing water level and the type of the laundry.

2. The control method according to claim 1, characterized in that: The step of "controlling the type of washing water flow during the washing process of the washing device and / or the speed of the motor during the dehydration process based on the size of the target washing water level and the type of the laundry to be washed" further includes: If the target washing water level is greater than a first preset water level and the type of the laundry is heavy clothes, controlling the washing device to deliver water into the washing tub to the target washing water level; Controlling the washing device to operate alternately with a first washing water flow and a second washing water flow; After washing is completed and during the dehydration process, the rotation speed of the motor is controlled according to the water level in the washing tub.

3. The control method according to claim 2, characterized in that: The step of "controlling the speed of the motor according to the water level in the washing tub" further includes: When or after starting to drain water, controlling the motor to run at a first speed; Obtaining the water level in the washing tub; When the water level in the washing tub drops to a second preset water level, controlling the motor to run at a second speed; When the water level in the washing tub drops to a third preset water level, controlling the motor to run at a third speed until the dehydration process ends; The first speed is smaller than the second speed, and the second speed is smaller than the third speed.

4. The control method according to claim 2, characterized in that: The step of "controlling the washing device to alternately operate with the first washing water flow and the second washing water flow" further includes: The washing device is controlled to alternately operate in a manner that the first washing water flow operates for a first operating time and the second washing water flow operates for a second operating time.

5. The control method according to claim 2, characterized in that: The control method further comprises: After washing is completed and before draining, the washing device is controlled to operate with the second washing water flow for a third operation time.

6. The control method according to claim 2, characterized in that: The step of "controlling the type of washing water flow during the washing process of the washing device and / or the speed of the motor during the dehydration process based on the size of the target washing water level and the type of the laundry to be washed" further includes: If the target washing water level is less than or equal to the first preset water level, and the type of the laundry is heavy laundry, controlling the washing device to deliver water into the washing tub to the target washing water level; Controlling the washing equipment to run a first washing water flow; After washing is completed and during the dehydration process, the rotation speed of the motor is controlled according to the water level in the washing tub.

7. The control method according to claim 6, characterized in that: "Controlling the speed of the motor according to the water level in the washing tub" Acquiring the water level in the washing tub at the same time or after starting to drain water; When the water level in the washing tub drops to a fourth preset water level, controlling the motor to run at a fourth speed; When the water level in the washing tub drops to a fifth preset water level, controlling the motor to run at a fifth speed until the dehydration process ends; Wherein, the fourth rotational speed is lower than the fifth rotational speed.

8. The control method according to claim 1, characterized in that: The step of "obtaining target washing water level" further includes: Obtaining the weight of the laundry; The target washing water level is determined based on the weight and a mapping relationship between the laundry weight and the washing water level.

9. The control method according to claim 1, characterized in that: The step of "obtaining the type of laundry to be washed" further includes: At the same time or after the water level in the washing tub reaches the target washing water level, obtaining the actual time taken for the water level in the washing tub to rise to the target washing water level; Comparing the actual duration with a first preset duration; The type of the laundry is determined according to the first comparison result.

10. The control method according to claim 1, characterized in that: The step of "obtaining the type of laundry to be washed" further includes: After the water level in the washing tub reaches the target washing water level, controlling the washing device to operate for a second preset time period, and obtaining the actual water level in the washing tub again; comparing the actual water level with the target washing water level; The type of the laundry is determined according to the second comparison result.

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