Washing device control method and washing device

Abstract

A washing device control method and a washing device. The control method comprises: in a water inlet process, controlling a tub and / or an impeller of a washing device to rotate in one direction, acquiring a load weight in the tub, selecting a rotating speed corresponding to the acquired load weight, and controlling the tub and / or the impeller to rotate in one direction according to the selected rotating speed. The tub and the impeller are controlled to rotate in one direction for driving laundry in the tub of the washing device to directionally move, so that in the process of dispensing a detergent, the detergent can be uniformly sprinkled on the clothes. Additionally, a corresponding one-way rotating speed is selected on the basis of the acquired load weight in the tub, so that the detergent can be uniformly distributed on the laundry, and the detergent and washing water can fully infiltrate the laundry, improving the washing effect for the laundry; and large color difference will not occur in local areas of the laundry washed by using the washing device, achieving a good cleaning effect.

Description

Control method of washing equipment and washing equipment Technical Field

[0001] The present invention belongs to the technical field of mechanical equipment, and in particular, relates to a control method for washing equipment and the washing equipment. Background Art

[0002] "Washing equipment" refers to a general term for a type of household appliances that can perform washing, dehydration and other programs, such as washing machines, washer-dryers, etc.

[0003] The washing machine has the function of automatically adding detergent. By detecting the weight of the clothes to be washed, the amount of detergent to be added is determined, and the determined amount of detergent is controlled to be added into the washing device.

[0004] However, in the current process of adding detergent, the detergent is only added to a local area in the washing machine, but the detergent cannot be evenly dispersed on the clothes. Therefore, the treatment effect of the detergent on the clothes is poorly uniform.

[0005] Based on this, some washing machines control the drum's forward and reverse rotation during the detergent addition process. However, this control method has a poor effect on the uniform distribution of detergent. After the detergent is added, it will penetrate the clothes in a short time. Even if the drum is controlled to rotate forward and reverse, the detergent that has penetrated the clothes cannot be evenly distributed on the other clothes. At the same time, some areas of clothes may be repeatedly sprayed with detergent, while other areas of clothes will not be stained by detergent. In addition, when the load in the drum is heavy, if the rotation speed is too high, the wash water and detergent will not be able to fully penetrate the loaded clothes, resulting in poor washing results.

[0006] In view of this, the present invention is proposed.

[0007] Summary of the Invention

[0008] The object of the present invention is to provide a control method for a washing machine so as to achieve the purpose of spraying detergent evenly on clothes and fully soaking the clothes with detergent and washing water.

[0009] Another object of the present invention is to provide a washing device that is controlled by the control method of the present invention to achieve the purpose of improving the uniformity of the detergent in cleaning clothes.

[0010] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0011] A control method for washing equipment can control the barrel and / or impeller of the washing equipment to rotate unidirectionally during water intake, obtain the load weight in the barrel, select a rotation speed corresponding to the obtained load weight, and control the barrel and / or impeller to rotate unidirectionally at the selected rotation speed.

[0012] Further, selecting the rotation speed corresponding to the obtained load weight includes: obtaining a pre-water level V0 corresponding to the load weight, and using the rotation speed corresponding to the obtained pre-water level V0 as the selected rotation speed;

[0013] Preferably, the pre-water level V0 is positively correlated with the load weight;

[0014] Preferably, the rotation speed is negatively correlated with the pre-inlet water level V0.

[0015] Furthermore, the water level V of the essence wash water is preset. 01 , and V 01 <V0, during the water inlet process, obtain the water level V in the barrel, and compare the obtained water level V with the essence wash water level V 01 The size of V≤V 01 , then the barrel and / or impeller are controlled to rotate in one direction.

[0016] Furthermore, during the water inlet process, the speed of controlling the unidirectional rotation decreases as the water level increases.

[0017] Furthermore, if the water level V in the barrel is greater than the essence wash water level V 01 , the impeller is controlled to execute the forward rotation-pause-reverse timing according to the set cycle, and the forward and reverse rotation speeds of the impeller are higher than the unidirectional rotation speed.

[0018] Furthermore, controlling the impeller to execute the forward rotation-pause-reverse rotation sequence includes: during the water intake process, controlling the forward and reverse rotation speeds of the impeller to increase as the water level increases.

[0019] Furthermore, controlling the impeller to execute the forward rotation-pause-reverse timing sequence includes: during the water inlet process, the rotation time within the set cycle increases with the increase of the water level.

[0020] Furthermore, the preset water level V 02 , and V 01 <V 02 <V0, control the impeller to execute the forward rotation-pause-reverse timing sequence including: during the water inlet process, obtain the water level V in the barrel, compare the obtained water level V with the preset water level V 02 If V≥V 02 , the pause time within the set period is controlled to decrease as the inlet water level increases.

[0021] Furthermore, the water absorption of the load in the washing device is obtained, and the speed of the unidirectional rotation is controlled to be positively correlated with the obtained water absorption;

[0022] Preferably, obtaining the water absorbency of the load in the washing device includes: obtaining the material of the load, and selecting the water absorbency corresponding to the material as the obtained water absorbency.

[0023] A control method for a washing device, wherein the washing device comprises a barrel for accommodating clothes and a pulsator rotatably arranged in the barrel, wherein the barrel and / or the pulsator can rotate and stop alternately to form a washing water flow.

[0024] The impeller and / or the barrel body performs continuous forward and reverse alternating motions to form an upside-down zero-stop water flow. After the zero-stop water flow is formed, the washing water flow is controlled to form the washing water flow for washing clothes.

[0025] Furthermore, the washing water flow includes a first washing water flow formed by controlling the barrel body and / or the impeller to move according to a first turn-stop ratio Q1, and a second washing water flow formed by moving according to a second turn-stop ratio Q2, and Q1>Q2. After the zero-stop water flow is formed, the first washing water flow is first controlled to be formed, and then the second washing water flow is formed.

[0026] Furthermore, the zero-water-stop flow intensity and washing water flow intensity corresponding to different clothing information are preset, the clothing information in the barrel is obtained, and the zero-water-stop flow intensity and washing water flow intensity corresponding to the obtained clothing information are controlled and selected for washing.

[0027] Furthermore, the zero-stop water flow intensity includes the rotation speed and rotation time of the impeller and / or the barrel, and the washing water flow intensity includes the rotation speed and the rotation-stop ratio of the impeller and / or the barrel.

[0028] Furthermore, the clothing information includes the degree of dirtiness of the clothing, the degree of dirtiness of the clothing in the tub is obtained, and the intensity of the zero-stop water flow and / or the intensity of the wash water flow is controlled to be positively correlated with the obtained degree of dirtiness of the clothing;

[0029] Preferably, the rotation speed and / or rotation duration of the impeller and / or the barrel during the zero-water flow is controlled to be positively correlated with the obtained degree of dirtiness of the clothes;

[0030] Preferably, the rotation speed and / or the rotation-stop ratio of the impeller and / or the barrel in the washing water flow is controlled to be positively correlated with the obtained degree of dirtiness of the clothes.

[0031] Furthermore, the clothing information includes the wear resistance of the clothing material, the wear resistance of the clothing material in the barrel is obtained, and the zero-stop water flow intensity and / or the washing water flow intensity are controlled to be positively correlated with the obtained wear resistance.

[0032] Furthermore, the clothing information includes the type of clothing, a preset type of clothing that is easily deformed, obtaining the type of clothing in the barrel, and determining whether the obtained type of clothing belongs to the type of clothing that is easily deformed. If so, controlling the reduction of the zero-stop water flow intensity and / or the washing water flow intensity.

[0033] Furthermore, the water inlet level in the barrel is obtained, and the zero-water stop flow intensity and / or the washing water flow intensity are controlled to increase as the obtained water inlet level increases.

[0034] Furthermore, the increase range of the zero-stop water flow intensity and / or the wash water flow intensity is controlled to increase as the acquired inlet water level increases;

[0035] Preferably, the water inlet level V0 is preset, and the increase amplitude when the water inlet level is lower than the preset water inlet level V0 is controlled to be smaller than the increase amplitude when the water inlet level is higher than the preset water inlet level V0.

[0036] A control method for a washing device, the washing device comprising a barrel and a pulsator, and a driver for driving the pulsator and the barrel in forward and reverse rotation. After the forward rotation of the driver stops and before the forward rotation of the pulsator and / or the barrel stops, the driver is controlled to perform at least one reverse drive.

[0037] Furthermore, before the forward rotation of the impeller and / or the barrel stops, at least the first and second reverse drives are executed in sequence, the first reverse drive accelerates the forward rotation to stop, and the second reverse drive stops the forward rotation and directly switches to reverse rotation.

[0038] Preset pulsator speed N 0波 After the first reverse drive is completed, the control obtains the impeller speed N 波 , compare the obtained impeller speed N 波 With the preset speed N 0波 The size of N 波 ≤N 0波 , then the control driver starts the second reverse drive;

[0039] Furthermore, the preset impeller speed N N波 , N N波 >N 0波 , get the impeller speed N after the first reverse drive is completed 波 , compare the obtained speed N 波 With the preset speed N N波 The size of N 波 ≥N N波 , then the control adds at least one reverse drive before the second reverse drive;

[0040] Furthermore, the barrel speed N is preset 0桶 After the first reverse drive is completed, the barrel speed N is obtained by control. 桶 , compare the obtained barrel speed N 桶 With the preset speed N 0桶 The size of N 桶 ≤N 0桶 , then the control driver starts the second reverse drive;

[0041] Furthermore, the barrel speed N is preset N桶 , N N桶 >N 0桶 , obtain the barrel speed N after the first reverse drive is completed 桶 , compare the obtained speed N 桶 With the preset speed N N桶 The size of N 桶 ≥N N桶 , then the control adds at least one reverse drive before the second reverse drive;

[0042] Furthermore, the washing device also includes a motor that provides power to the impeller and the barrel, and the motor speed N is preset. 0机 After the first reverse drive is completed, the motor speed N is obtained by control. 机 , compare the obtained motor speed N 机 With the preset speed N 0机 The size of N 机 ≤N 0机 , then the control driver starts the second reverse drive.

[0043] Furthermore, the motor speed N is preset N机 , N N机 >N 0机 , get the motor speed N after the first reverse drive is completed 机 , compare the obtained speed N 机 With the preset speed N N机 The size of N 机 ≥N N机 , then the control adds at least one reverse drive before the second reverse drive.

[0044] Furthermore, before the forward rotation of the impeller and / or the barrel stops, at least the first and second reverse driving operations are performed in sequence.

[0045] After the barrel and / or pulsator stops rotating, M Stop rotating when the time is T0, the preset time is T0, T0<T M , start timing after the forward drive stops, obtain the timing time T, compare the obtained timing time T with the preset time T0, if T≥T0, then control the driver to start the first reverse drive.

[0046] Furthermore, the rotation speed of the impeller and / or the barrel body when the forward driving is completed is controlled, and the preset time T0 is controlled to be positively correlated with the obtained rotation speed of the impeller and / or the barrel body.

[0047] Furthermore, the weight of the clothes in the barrel is controlled to be obtained, and the preset time T0 is controlled to be positively correlated with the obtained weight of the clothes in the barrel.

[0048] Furthermore, the washing device also includes a braking program for reducing the rotation speed of the barrel and the impeller, and the control driver controls the activation of the braking program at least once before executing the reverse drive.

[0049] A method for controlling a washing device, the washing device comprising a barrel and a pulsator, the washing device comprising a zero-stop water flow formed by forward and reverse zero-stop switching of the pulsator and / or the barrel, for turning clothes upside down in the barrel, controlling acquisition of information about the clothes in the barrel, and controlling selection of the zero-stop water flow intensity corresponding to the acquired clothing information.

[0050] Furthermore, the information about the clothes includes the weight of the clothes, and the intensity of controlling the zero-stop water flow is positively correlated with the weight of the clothes.

[0051] Furthermore, improving the zero-stop water flow intensity includes: controlling and extending the time of the barrel and / or the impeller in forward and reverse rotation;

[0052] And / or, control and increase the rotation speed of the barrel and / or the impeller.

[0053] Furthermore, a first turning efficiency P1 is preset, and the turning efficiency P of the clothes in the barrel is controlled to be obtained. The obtained turning efficiency P is compared with the preset first turning efficiency P1. If P≤P1, the intensity of the zero water stop flow is increased and / or the time of the zero water stop flow is increased.

[0054] Furthermore, a second flipping efficiency P2 is preset, P2>P1, and the flipping efficiency P of the clothes in the barrel is controlled to be obtained, and the obtained flipping efficiency P is compared with the preset second flipping efficiency P2. If P≥P2, the intensity of the zero water stop flow is controlled to be reduced and / or the time of the zero water stop flow is reduced.

[0055] Furthermore, before increasing the intensity of the zero-water flow and / or increasing the time of the zero-water flow, a set amount of water is controlled to be added into the barrel.

[0056] Furthermore, after increasing the intensity of the zero-water flow and / or increasing the time of the zero-water flow, the control obtains the flipping efficiency P of the clothes, compares the obtained flipping efficiency P with the preset first flipping efficiency P1, and if P≤P1, the control sends information to the user to query whether the clothes are the same color. If the clothes are not the same color, the control sends a prompt message to the user to remind the user that the clothes are overweight.

[0057] Furthermore, obtaining the turning efficiency of the clothes in the barrel includes: controlling to obtain images of the clothes in the barrel at least twice, analyzing the color and / or position changes of the clothes in the images, and obtaining the turning efficiency P of the clothes;

[0058] Preferably, the images of the clothes in the barrel are acquired at least twice, the area and / or position changes of different colors in the images are analyzed, and the turning efficiency P of the clothes is obtained by combining the interval between the two acquired images;

[0059] Preferably, the images of the clothes in the barrel are acquired at least twice, the position changes of different clothes in the images are analyzed, and the turning efficiency P of the clothes is obtained in combination with the interval time between the two acquired images.

[0060] Furthermore, the wear resistance R0 is preset, the clothing material is controlled, the wear resistance R corresponding to the clothing material is selected, and the obtained wear resistance R is compared with the preset wear resistance R0. If R≤R0, the forward and reverse rotation time of the barrel and / or the impeller is extended.

[0061] The present invention also provides a washing device controlled by any control method described in the above technical solutions.

[0062] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0063] In the present invention, the barrel and the impeller are controlled to rotate unidirectionally to drive the clothes in the barrel of the washing equipment to move in a directional manner. In this way, during the process of adding detergent, the detergent can be evenly sprinkled on the loaded clothes; at the same time, the corresponding unidirectional rotation speed is selected according to the obtained load weight in the barrel, so that the detergent can be evenly stained on the loaded clothes, and the detergent and washing water can fully penetrate the loaded clothes, thereby improving the washing effect on the clothes.

[0064] During the washing process of the present invention, a zero-stop water flow is controlled to be formed, and the zero-stop water flow is turned up and down in the barrel, driving the clothes to be replaced vertically up and down, fully soaking the clothes, and at the same time achieving rapid turning of the clothes, reducing the entanglement of the clothes in the barrel, and reducing the wear and tear on the clothes; the subsequent washing water flow can fully act on the turned clothes, so that the turned clothes can be fully washed under the scrubbing action of the washing water flow, thereby improving the cleaning effect of the clothes, without additionally extending the washing time and washing intensity, saving time, electricity and water.

[0065] In the present invention, washing is carried out according to the cycle water flow of "zero-stop water flow-first washing water flow-second washing water flow". The zero-stop water flow realizes the rapid turning of clothes, reduces the entanglement of clothes in the barrel, and reduces the wear and tear on clothes; the turned clothes are first rubbed and washed under the action of the first washing water flow, which has a good washing effect and can effectively remove stains on clothes; the clothes after rubbing and washing are then balanced and corrected under the action of the second washing water flow, which maintains the uniformity of clothing distribution while further disentangling and reduces the wear and tear on clothes.

[0066] After the driver stops the forward drive, the barrel and the impeller still maintain forward rotation due to their own inertia. It is necessary to control the driver to start the reverse drive before the impeller and the barrel stop rotating due to inertia, so that the impeller and the barrel do not stop when switching between forward and reverse rotation.

[0067] After the driver stops forward driving, because the inertial rotation speed of the impeller and the barrel is still high, starting the first reverse drive can quickly reduce the speed of the impeller and the barrel. At the same time, the first reverse drive is quickly turned off to avoid excessive load on the driver when the speed of the impeller and the barrel is too high, thereby preventing damage to the washing equipment.

[0068] When the obtained speed of the impeller's forward inertia rotation reaches a preset speed, the driver is controlled to start the reverse drive, which can accurately control the timing of starting the reverse drive and avoid starting the reverse drive too early, which may cause excessive impact between the driving force and the impeller's own inertia, causing vibration or even damage to the washing equipment.

[0069] After the first reverse drive is turned on, if the forward speed of the impeller and the barrel is still too high, the impeller speed N 波 Greater than or equal to the preset speed N N波 , or obtain the barrel speed N 桶 Greater than or equal to the preset speed N N桶 The control adds a reverse drive before the second reverse drive, quickly reduces the speed of the pulsator to a speed at which the flip program can be started, avoids waiting or vibration caused by the poor deceleration effect of the first reverse drive, and speeds up the washing rhythm.

[0070] When the clothes are not turned over enough, some clothes may not be fully in contact with water, resulting in incomplete washing; when the clothes are turned over too much, the clothes may have completed a full circle in the barrel and returned to their original position at the end of a zero-stop water flow, resulting in uneven washing. Selecting a zero-stop water flow with appropriate intensity based on the clothing information can make the clothes turned just right, and the clothes can be evenly washed after being fully soaked, effectively improving the washing effect.

[0071] When washing clothes with low wear resistance, controlling and increasing the time of single forward and reverse rotation of the impeller can effectively reduce the friction between the clothes and the inner wall of the barrel when turning over, so that the clothes can be washed while turning up and down with the water flow, thereby extending the service life of the clothes.

[0072] The washing device of the present invention is controlled by the control method of the present invention. After washing clothes, the washing device of the present invention will not cause large color differences in local areas of the clothes, and the washing effect is good.

[0073] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0075] FIG1 is a flow chart of a control method of the present invention;

[0076] FIG2 is a flow chart of another control method of the present invention;

[0077] FIG3 is a flow chart of another control method of the present invention;

[0078] FIG4 is a flow chart of another control method of the present invention;

[0079] FIG5 is a flow chart of another control method of the present invention;

[0080] FIG6 is a flow chart of a control method of the present invention;

[0081] FIG7 is a flow chart of another control method of the present invention;

[0082] FIG8 is a flow chart of another control method of the present invention;

[0083] FIG9 is a flow chart of another control method of the present invention;

[0084] FIG10 is a flow chart of a washing equipment control method of the present invention;

[0085] 11 is a flow chart of another washing equipment control method of the present invention;

[0086] FIG12 is a flow chart of another washing equipment control method of the present invention;

[0087] FIG13 is a flow chart of another washing equipment control method of the present invention;

[0088] FIG14 is a flow chart of another washing equipment control method of the present invention;

[0089] FIG15 is a flow chart of a washing equipment control method of the present invention;

[0090] FIG16 is a flow chart of another washing equipment control method of the present invention;

[0091] FIG17 is a flow chart of another washing equipment control method of the present invention;

[0092] FIG18 is a flow chart of another washing equipment control method of the present invention;

[0093] FIG19 is a flow chart of another washing equipment control method of the present invention;

[0094] FIG20 is a flow chart of another washing equipment control method of the present invention.

[0095] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0096] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0097] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0098] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0099] "Washing equipment" refers to a general term for a type of household appliances that can perform washing, dehydration and other programs, such as washing machines, washer-dryers, etc.

[0100] The washing device comprises a detergent delivery module and a barrel body for accommodating clothes. The detergent delivery module contains detergent. When water enters the washing device, the incoming water flow can flush the detergent in the detergent delivery module into the barrel body for washing clothes.

[0101] The present invention provides a control method for a washing device. During the process of water intake and detergent addition into the washing device, the barrel body, or the impeller, or the barrel body and the impeller of the washing device are controlled to rotate unidirectionally, the load weight in the barrel body is obtained, the rotation speed corresponding to the obtained load weight is selected, and the barrel body, the impeller, or the barrel body and the impeller are controlled to rotate unidirectionally according to the selected rotation speed.

[0102] More specifically, as shown in FIG1 , the control step includes:

[0103] S1, start water intake;

[0104] S2. Obtain the load weight in the barrel;

[0105] S3, selecting a rotation speed corresponding to the acquired load weight;

[0106] S4, control the impeller to rotate in one direction according to the selected speed;

[0107] S5. Determine whether water inflow is complete; if so, proceed to step S6; otherwise, return to step S4;

[0108] S6. End.

[0109] In the present invention, a weight sensor is provided in the barrel of the washing device. In step S2, the weight sensor is controlled to be turned on after the clothes are put in and before the water is added, so as to obtain the load weight in the barrel.

[0110] In the present invention, the barrel and the impeller are controlled to rotate unidirectionally to drive the clothes in the barrel of the washing equipment to move in a directional manner. In this way, during the process of adding detergent, the detergent can be evenly sprinkled on the clothes; at the same time, the corresponding unidirectional rotation speed is selected according to the load weight obtained in the barrel, so that the detergent can be evenly stained on the loaded clothes, and the detergent and washing water can be separately soaked into the loaded clothes, thereby improving the washing effect on the clothes.

[0111] As an embodiment of the present invention, selecting the rotation speed corresponding to the acquired load weight includes: acquiring a pre-water level V0 corresponding to the load weight, and using the rotation speed corresponding to the acquired pre-water level V0 as the selected rotation speed.

[0112] Specifically, as shown in FIG2 , the control steps include:

[0113] S1, start water intake;

[0114] S2. Obtain the load weight in the barrel;

[0115] S3, obtaining the pre-water level V0 corresponding to the load weight;

[0116] S4, selecting a rotation speed corresponding to the obtained pre-inlet water level V0;

[0117] S5, control the impeller to rotate in one direction according to the selected speed;

[0118] S6, determine whether the water inflow is complete; if so, execute step S7; otherwise, return to step S5;

[0119] S7. End.

[0120] Preferably, the pre-water level V0 is positively correlated with the load weight; that is, the larger the load weight obtained, the more clothes there are in the barrel of the washing device, and the more water is used for washing.

[0121] Further preferably, the rotation speed is negatively correlated with the pre-inlet water level V0.

[0122] In this embodiment, the higher the pre-water level V0, the more clothes there are in the corresponding barrel, and the lower the unidirectional speed is controlled, so that more clothes can be fully soaked by the water flow. Furthermore, the detergent can better adhere to and dissolve on the surface of the soaked clothes.

[0123] As an embodiment of the present invention, the preset water level V for essence washing is 01 , and V 01 <V0, during the water inlet process, obtain the water level V in the barrel, and compare the obtained water level V with the essence wash water level V 01 If V≤V 01 , then the barrel and / or impeller are controlled to rotate in one direction.

[0124] Specifically, as shown in FIG3 , the control steps include:

[0125] S1, start water intake;

[0126] S2. Obtain the load weight in the barrel;

[0127] S3, obtain the pre-inlet water level V0 corresponding to the load weight, and preset the essence wash water level V 01 ;

[0128] S4. Obtain the water level V in the barrel;

[0129] S5. Determine whether the obtained water inlet level V is less than or equal to the preset essence wash water inlet level V 01 ; If yes, go to step S6, otherwise go to step S8;

[0130] S6. Selecting a rotation speed corresponding to the obtained pre-inlet water level V0;

[0131] S7, controlling the impeller to rotate in one direction according to the selected speed, and returning to step S5;

[0132] S8. Determine whether the obtained inlet water level V is greater than the pre-inlet water level V0; if so, execute step S9; otherwise, return to step S5;

[0133] S9. Water inflow is completed.

[0134] In this embodiment, when the obtained water inlet level V is less than or equal to the preset essence wash water inlet level V 01When , it indicates that the water level is low. This is the initial stage of water inflow. During this stage, the washing machine controls the water inflow and detergent delivery, and controls the drum and impeller to rotate unidirectionally, which helps to evenly spray the detergent on the load surface. At the same time, the unidirectional rotation speed is controlled to correspond to the obtained pre-water level V0 to ensure that the detergent and wash water can fully soak the loaded clothes.

[0135] As one implementation of this embodiment, during water intake, the speed of the unidirectional rotation is controlled to decrease as the water level increases. In this embodiment, an increase in the water level indicates an increase in the amount of water entering the barrel. At this time, the speed of the unidirectional rotation is controlled to decrease, allowing the wash water entering the barrel sufficient time to contact the clothes inside the barrel and fully soak the clothes.

[0136] As another embodiment of this embodiment, if the water level V in the barrel is greater than the essence washing water level V 01 , the impeller is controlled to execute the forward rotation-pause-reverse timing according to the set cycle, and the forward and reverse rotation speeds of the impeller are higher than the unidirectional rotation speed.

[0137] Specifically, as shown in FIG4 , the control steps are as follows:

[0138] S1, start water intake;

[0139] S2. Obtain the load weight in the barrel;

[0140] S3, obtain the pre-inlet water level V0 corresponding to the load weight, and preset the essence wash water level V 01 ;

[0141] S4. Obtain the water level V in the barrel;

[0142] S5. Determine whether the obtained water inlet level V is less than or equal to the preset essence wash water inlet level V 01 ; If yes, go to step S6, otherwise go to step S8;

[0143] S6. Selecting a rotation speed corresponding to the obtained pre-inlet water level V0;

[0144] S7, controlling the impeller to rotate in one direction according to the selected speed, and returning to step S5;

[0145] S8, control the impeller to execute the forward rotation-pause-reverse rotation sequence according to the set cycle;

[0146] S9, determine whether the obtained inlet water level V is greater than the pre-inlet water level V0; if so, execute step S10, otherwise, return to step S8;

[0147] S10: Water inflow is completed.

[0148] In this embodiment, if the obtained water level V is greater than the preset essence washing water level V 01 , indicating that the current water intake is large and the detergent has been added. At this time, the pulsator is controlled to execute the forward rotation-pause-reverse timing according to the set cycle to form the washing water in the barrel into forward and reverse water flow, and rub and wash the clothes in the barrel.

[0149] Furthermore, when executing the forward-pause-reverse sequence, the forward and reverse rotation speeds of the impeller are controlled to be higher than the unidirectional rotation speed. This helps to form a stronger forward and reverse water flow, further improving the rubbing and washing effect on clothes.

[0150] As an implementation of this embodiment, controlling the impeller to execute the forward rotation-pause-reverse timing sequence includes: during the water intake process, controlling the forward and reverse rotation speeds of the impeller to increase as the water level increases.

[0151] When executing the forward-pause-reverse sequence, if the water level is low and the speed is too high, the water will flow at high speed in the barrel, causing splashing, which can easily damage clothes and consume a lot of energy; if the water level is high and the speed is too low, a strong and effective washing water flow cannot be formed, and the washing efficiency of clothes is low.

[0152] Based on this, in the control method of this embodiment, as the water level increases, the forward and reverse rotation speeds of the impeller are controlled to increase accordingly so as to form a strong washing water flow. This makes full use of the water flow to wash clothes, improves the washing efficiency of clothes, and the rotation speed corresponding to the water level will not be too high, avoiding damage to clothes.

[0153] As another implementation of this embodiment, controlling the impeller to execute the forward rotation-pause-reverse timing includes: during the water inlet process, the rotation time within the set cycle increases with the increase of the water level.

[0154] In this embodiment, the higher the water level, the more water enters the barrel. At this time, the rotation time is controlled to increase so that the clothes are in a rotating state. All areas of the clothes in the rotating state can come into contact with the water flow. That is, increasing the rotation time can make a large amount of washing water in the barrel fully contact with the clothes and quickly and efficiently soak into the clothes.

[0155] As an embodiment of the present invention, the preset water level V 02 , and V 01 <V 02 <V0, control the impeller to execute the forward rotation-pause-reverse timing sequence including: during the water inlet process, obtain the water level V in the barrel, compare the obtained water level V with the preset water level V 02 If V≥V 02 , the pause time within the set period is controlled to decrease as the inlet water level increases.

[0156] Specifically, as shown in FIG5 , the control steps are as follows:

[0157] S1, start water intake;

[0158] S2. Obtain the load weight in the barrel;

[0159] S3, obtain the pre-inlet water level V0 corresponding to the load weight, and preset the essence wash water level V 01 , preset water level V 02 And V 01 <V 02 <V0;

[0160] S4. Obtain the water level V in the barrel;

[0161] S5. Determine whether the obtained water inlet level V is less than or equal to the preset essence wash water inlet level V 01 ; If yes, go to step S6, otherwise go to step S8;

[0162] S6. Selecting a rotation speed corresponding to the obtained pre-inlet water level V0;

[0163] S7, controlling the impeller to rotate in one direction according to the selected speed, and returning to step S5;

[0164] S8, control the impeller to execute the forward rotation-pause-reverse rotation sequence according to the set cycle;

[0165] S9: Determine whether the obtained water inlet level V is greater than or equal to the preset water inlet level V 02 ; If not, go to step S10; If so, go to step S11;

[0166] S10, the rotation time increases as the water level increases, the pause time remains unchanged, and the process returns to step S9;

[0167] S11, the rotation time increases with the increase of the water level, and the pause time decreases with the increase of the water level;

[0168] S12, determine whether the obtained inlet water level V is greater than the pre-inlet water level V0; if so, execute step S13, otherwise, return to step S11;

[0169] S13: Water inflow is completed.

[0170] In this embodiment, if the water level V is greater than or equal to the preset water level V 02And it is less than the pre-water level V0, it means that the detergent has been added, and the current water level is already high, and the amount of water in the barrel is large. At this time, the pause time in the rotation-stop sequence is controlled to be shortened, so that the time when the clothes are in the rotating state is extended, so that the clothes in the rotating state can be more and more fully in contact with a larger amount of washing water, further allowing the washing water to fully soak the clothes.

[0171] On the contrary, when the water level V is greater than the preset water level V 01 And less than the pre-inflow water level V 02 It indicates that the detergent has been added, but the water level in the barrel is moderate. At this time, the rotation time in the control rotation and stop sequence increases with the increase of the water level, and the pause time remains unchanged, which reasonably ensures that the washing water can soak the clothes.

[0172] As another embodiment of the present invention, the water absorption of the load in the washing device is obtained, and the rotation speed of the unidirectional rotation is controlled to be positively correlated with the obtained water absorption.

[0173] Furthermore, obtaining the water absorption of the load in the washing device includes: obtaining the material of the load, and selecting the water absorption corresponding to the material as the obtained water absorption.

[0174] In this embodiment, the greater the water absorbency of the load, the faster the water flow can penetrate into the clothes after contacting the load clothes. Therefore, the speed of the unidirectional rotation is controlled to increase accordingly, which can ensure that the washing water soaks the clothes and improve the soaking efficiency.

[0175] As an embodiment of the present invention, during the process of adding water and detergent to the washing device, the barrel, or the impeller, or the barrel and the impeller of the washing device are controlled to rotate in one direction.

[0176] More specifically, the control steps are as follows:

[0177] S1, start;

[0178] S2. Obtaining the amount of detergent to be added a;

[0179] S3, adding detergent;

[0180] S4, controlling the pulsator of the washing equipment to rotate in one direction;

[0181] S5. Obtaining the amount of detergent added (b);

[0182] S6. Determine whether the obtained amount of detergent b is greater than or equal to the amount to be dispensed a; if so, proceed to step S7; otherwise, return to step S4;

[0183] S7. End.

[0184] Among them, in step S2, the corresponding amount a to be put in is selected according to the load in the barrel of the washing equipment. The larger the load, the larger the corresponding amount a to be put in.

[0185] In the present invention, the barrel and the impeller are controlled to rotate in one direction to drive the clothes in the barrel of the washing device to move in a directional manner. In this way, during the process of adding detergent, the detergent can be evenly sprinkled on the clothes, and there will be no situation where the clothes in some areas are repeatedly sprayed with detergent while the clothes in other areas are not contaminated with detergent. In the control method of the present invention, the detergent can be evenly dispersed on the clothes, thereby improving the uniformity of the washing of the clothes by the washing device.

[0186] In particular, for some clothes with strong water absorption, the detergent will quickly penetrate into the clothes after coming into contact with the clothes, so that the detergent cannot be contaminated by other clothes, and the washing effect on other clothes is poor. After adopting the control method of the present invention, the detergent will be evenly adhered to each piece of clothing in the washing device, ensuring a better washing effect.

[0187] As an embodiment of the present invention, a preset water level value V0 is provided, and controlling the unidirectional rotation of the barrel and / or the impeller includes: obtaining the water level value V of the washing equipment, comparing the obtained inlet water level V with the preset water level value V0, and if V≥V0, controlling the unidirectional rotation to stop.

[0188] Specifically, as an implementation of this embodiment, the control steps of the washing equipment are as follows:

[0189] S1, start;

[0190] S2, preset water level value V0;

[0191] S3, adding detergent into the water;

[0192] S4, controlling the pulsator of the washing equipment to rotate in one direction;

[0193] S5. Obtain the water inlet level V of the washing equipment;

[0194] S6. Determine whether the obtained inlet water level V is greater than or equal to the preset water level value V0; if so, execute step S7; otherwise, return to step S4;

[0195] S7, control the one-way rotation to stop.

[0196] In step S2 of this embodiment, the preset water level V0 is less than the total water inlet level, wherein the total water inlet level is determined according to the load in the washing machine barrel. The greater the load, the higher the corresponding total water inlet level.

[0197] In the present invention, when the obtained water inlet level V is greater than or equal to the preset water level value V0, it indicates that the current water inlet level is high, and the detergent has been completely put into the barrel of the washing equipment. Under the action of the unidirectional rotation of the impeller, the detergent has been evenly stained on the load in the barrel, that is, the clothes. At this time, the unidirectional rotation is controlled to stop, and the washing program is started to wash the clothes, so as to improve the washing efficiency of the clothes.

[0198] As an implementation of this embodiment, the amount of detergent added is obtained, and the preset water level value V0 is controlled to be positively correlated with the obtained amount of detergent added.

[0199] In the washing machine, different load weights and different load dirtiness levels have corresponding detergent dosages. The greater the load weight and the higher the dirtiness level, the larger the corresponding detergent dosage. Obtaining the detergent dosage includes: obtaining the load weight and the load dirtiness level in the washing machine, and using the detergent dosage corresponding to the obtained load weight and dirtiness level as the obtained detergent dosage.

[0200] In this embodiment, the more detergent is added, the more detergent needs to be added to the barrel of the washing device. At this time, the preset water level value V0 is controlled to be larger to extend the duration of the unidirectional rotation, so that at least during the entire process of adding detergent, the impeller or barrel of the washing device can maintain unidirectional rotation, so that the detergent can be evenly stained on the clothes.

[0201] As an embodiment of the present invention, the water inlet time t0 and the water level value V0 are preset, and the one-way rotation of the barrel body and / or the impeller is controlled, including: accumulating the water inlet time t, when the accumulated water inlet time t reaches the preset water inlet time t0, obtaining the current water inlet level V, if the obtained water inlet level V is less than the preset water level value V0, the one-way rotation is controlled to stop.

[0202] More specifically, the controlling step includes:

[0203] S1, start;

[0204] S2, preset water level value V0, water inflow time t0; wherein, the preset water inflow time t0 is the theoretical time required for water to enter the preset water level value V0 under normal water pressure;

[0205] S3, adding detergent into the water;

[0206] S4, controlling the pulsator of the washing equipment to rotate in one direction;

[0207] S5, cumulative water inflow time t;

[0208] S6. Determine whether the accumulated water inflow time t is greater than or equal to the preset water inflow time t0; if so, proceed to step S7; otherwise, return to step S4;

[0209] S7, obtaining the water level V of the washing equipment;

[0210] S8, determine whether the obtained inlet water level V is less than the preset water level value V0; if so, execute step S9; otherwise, return to step S10;

[0211] S9, control one-way rotation to stop;

[0212] S10, controlling the execution of the washing program.

[0213] In this embodiment, when the cumulative water inflow time t reaches the preset water inflow time t0, if the obtained water inflow level V is less than the preset water level value V0, it indicates that the current water inflow is abnormal. At this time, the unidirectional rotation is controlled to stop in order to correct the water inflow abnormality.

[0214] As another embodiment of the present invention, a washing machine includes a motor that powers the drum and impeller. During the rotation of the drum and impeller, if a wet load is placed or becomes lodged between the impeller and the drum, the load cannot rotate unidirectionally with the impeller and instead becomes blocked or clogged. To address this issue, the control method provided in this embodiment is as follows:

[0215] The preset current value I0 controls the unidirectional rotation of the barrel and / or the impeller, including: detecting the current value I of the motor, comparing the detected current value I with the preset current value I0, and if I≥I0, controlling the unidirectional rotation to pause for a set period of time and then resuming the unidirectional rotation.

[0216] Specifically, the control steps of the washing equipment include:

[0217] S1, start;

[0218] S2, preset current value I0, set time s;

[0219] S3, adding detergent;

[0220] S4, controlling the pulsator of the washing equipment to rotate in one direction;

[0221] S5, detecting the current value I of the motor;

[0222] S6, determining whether the current value I of the detection motor is greater than or equal to the preset current value I0; if so, executing step S7; otherwise, returning to step S4;

[0223] S7, controlling the one-way rotation to pause for a set time s and then resume the one-way rotation; the set time can be set according to actual conditions, for example: 10s.

[0224] More specifically, the washing equipment is provided with a rear current detection device. In step S5, the current detection device is controlled to be turned on to detect the current value of the motor.

[0225] In this embodiment, if the detected current value I is greater than or equal to the preset current value I0, it indicates that the load may be stuck. At this time, the unidirectional rotation is controlled to pause for a set period of time and then resume unidirectional rotation. In this way, detection interference caused by clothing obstruction is avoided. In addition, the position of the load will be offset due to inertia when it stops, which helps to repair the stall caused by load obstruction.

[0226] As an implementation method of this embodiment, during the process of re-performing unidirectional rotation, if the detected current value I is greater than or equal to the preset current value I0, the unidirectional rotation is controlled to be paused for a set period of time before re-performing unidirectional rotation; otherwise, the control is to continue the unidirectional rotation.

[0227] Specifically, the control steps include:

[0228] S1, start;

[0229] S2, preset current value I0, set time s;

[0230] S3, adding detergent;

[0231] S4, controlling the pulsator of the washing equipment to rotate in one direction;

[0232] S5, detecting the current value I of the motor;

[0233] S6, determining whether the current value I of the detection motor is greater than or equal to the preset current value I0; if so, executing step S7; otherwise, returning to step S4;

[0234] S7, controlling the one-way rotation to pause for a set time s and then resume the one-way rotation.

[0235] S8. Detect the current value I of the motor.

[0236] S9, determining whether the current value I of the detection motor is greater than or equal to the preset current value I0; if so, returning to step S7; otherwise, executing step S10;

[0237] S10, controlling the continuous one-way rotation.

[0238] In this embodiment, if the current value I detected during the process of resuming unidirectional rotation after pausing for a set period of time is still greater than or equal to the preset current value I0, it indicates that the stall situation at this time has not been improved. At this time, the unidirectional rotation is controlled to pause for a set period of time and then resume unidirectional rotation, and this cycle is repeated to further repair the stall situation.

[0239] On the contrary, if the current value I detected during the unidirectional rotation after pausing for the set time is less than the preset current value I0, it indicates that the unidirectional rotation has returned to normal and there is no stall. At this time, the control continues to perform unidirectional rotation so that the detergent put in is evenly stained on the load.

[0240] As an implementation of this embodiment, a preset number N0 is used to accumulate the number of times N that the unidirectional rotation is paused and then resumed. If the accumulated number N≥N0, the unidirectional rotation is controlled to stop.

[0241] In this embodiment, if the cumulative number of times N≥N0, it indicates that the operation of pausing and then re-rotating one-way rotation has been performed multiple times, that is, the operation has not effectively improved the stall situation. At this time, the one-way rotation is controlled to stop so that the user can manually intervene to check the stall situation.

[0242] In one embodiment of the present invention, during the process of adding water and detergent to the washing machine, the impeller and the drum are controlled to rotate unidirectionally in opposite directions. The unidirectional rotation of the impeller drives the unidirectional rotation of the clothes, facilitating even distribution of the detergent on the clothes. The counter-rotating rotation of the drum and the impeller can untangle the clothes, preventing them from becoming tangled and tangled, which would prevent the detergent from fully soaking into the clothes.

[0243] Alternatively, when the washing machine is adding water and detergent, the impeller and the drum are controlled to rotate in the same, unidirectional direction. In this way, the unidirectional rotation of the impeller drives the clothes to rotate in the same direction, so that the detergent can be evenly distributed on the clothes. The unidirectional rotation of the drum and the impeller can effectively reduce the tangling of clothes and further ensure that the detergent is evenly applied to the surface of the clothes.

[0244] Alternatively, the pulsator is controlled to rotate in one direction and the barrel body does not rotate. In this way, the pulsator rotates in one direction and drives the clothes to rotate in one direction, so that the detergent can be evenly sprinkled on the clothes.

[0245] As an implementation method of this embodiment, a load weight G0 is preset, the load weight G in the washing equipment is obtained, and the obtained load weight G is compared with the preset load weight G0. If G≥G0, the impeller and the barrel body are controlled to rotate in opposite directions and in one direction; if G<G0, the impeller is controlled to rotate in one direction and the barrel body does not rotate.

[0246] In this embodiment, the obtained load weight G is greater than or equal to the preset load weight G0, which indicates that there is a large load in the barrel, that is, there are a lot of clothes. During the rotation of the impeller, the clothes are easily entangled together. At this time, the impeller and the barrel are controlled to rotate in opposite directions and one way, so that they can be untangled synchronously during the process of adding detergent to ensure that the clothes can be evenly stained with detergent.

[0247] As an embodiment of the present invention,

[0248] "Washing equipment" refers to a general term for household appliances that can perform washing, dehydration and other processes, such as washing machines, washer-dryers, etc. The washing equipment includes a barrel for accommodating clothes and a pulsator rotatably arranged in the barrel. Specifically, the barrel includes:

[0249] an outer tub for holding laundry water;

[0250] an inner tub rotatably disposed in the outer tub and used for accommodating laundry;

[0251] a pulsator rotatably disposed in the inner tub;

[0252] A motor is used to provide a driving force to rotate at least one of the inner tub and the pulsator.

[0253] As shown in Figures 6 to 9, the present invention provides a control method for a washing device, including: controlling the barrel and / or the impeller to rotate and stop alternately to form a washing water flow; controlling the impeller and / or the barrel to perform continuous forward and reverse alternating motions to form an upside-down zero-stop water flow; after the zero-stop water flow is formed, controlling the formation of the washing water flow for washing clothes.

[0254] In the present invention, the specific methods of forming the washing water flow include: controlling the barrel body and the impeller to move in opposite directions and in a forward-stop-reverse cycle to form the washing water flow; or, only controlling the impeller to move in a forward-stop-reverse cycle to form the washing water flow; or, only controlling the barrel body to move in a forward-stop-reverse cycle to form the washing water flow; the washing water flow alternates in a clockwise and counterclockwise direction along the circumference of the barrel body.

[0255] In the present invention, the specific method of forming zero-stop water flow includes: controlling the impeller to perform continuous forward and reverse alternating motion, that is, switching to the reverse state without pause after the impeller finishes forward rotation, forming an upside-down water flow in the barrel body, which is zero-stop water flow.

[0256] Alternatively, the impeller and the barrel body are controlled to perform continuous alternating forward and reverse motions, that is, after the impeller and the barrel body finish forward rotation, they are switched to the reverse state without pause, forming an upside-down water flow in the barrel body, which is zero water stop flow; wherein, the impeller and the barrel body rotate in the same direction, such as: the impeller and the barrel body rotate forward or reverse at the same time, but the speeds of the two can be the same or different, and can be specifically controlled according to actual conditions; for example: the speed of the impeller is 50rpm, and the speed of the barrel body is 400rpm; for another example: the speed of the impeller is 100rpm, and the speed of the barrel body is 100rpm.

[0257] Alternatively, the tub can be controlled to perform continuous alternating forward and reverse motion, that is, after the tub completes its forward rotation, it switches to the reverse state without pausing, creating an up-and-down flow within the tub. This is known as zero-stop flow. This strong power can move the clothes in the tub vertically up and down.

[0258] In the present invention, after the zero-stop water flow is formed, the washing water flow is controlled to be formed for washing clothes, wherein the zero-stop water flow and the washing water flow can be formed alternately, and the number of times the zero-stop water flow is formed can also be controlled and selected according to actual conditions.

[0259] Specifically, as shown in FIG6 , the control steps of the washing device in the present invention include:

[0260] S1. Start washing

[0261] S2, control the impeller and the barrel to make continuous forward and reverse alternating motions in the same direction to form an upside-down zero-stop water flow;

[0262] S3, controlling the barrel and the impeller to move in opposite directions, alternating in a cycle of forward rotation, stop, and reverse rotation to form a washing water flow;

[0263] S4, determine whether the washing is completed, if so, execute step S5; otherwise, return to step S2;

[0264] S5. End washing.

[0265] During the washing process of the present invention, a zero-stop water flow is controlled to be formed, and the zero-stop water flow is turned up and down in the barrel, driving the clothes to be replaced vertically up and down, fully soaking the clothes, and at the same time achieving rapid turning of the clothes, reducing the entanglement of the clothes in the barrel, and reducing the wear and tear on the clothes; the subsequent washing water flow can fully act on the turned clothes, so that the turned clothes can be fully washed under the scrubbing action of the washing water flow, thereby improving the cleaning effect of the clothes, without additionally extending the washing time and washing intensity, saving time, electricity and water.

[0266] As an embodiment of the present invention, the washing water flow includes a first washing water flow formed by controlling the movement of the barrel and / or the pulsator according to a first rotation-stop ratio Q1, and a second washing water flow formed by controlling the movement according to a second rotation-stop ratio Q2, wherein Q1>Q2. After the zero-stop water flow is formed, the first washing water flow is controlled to be formed first, and then the second washing water flow is formed, that is, washing is performed in a manner of zero-stop water flow-first washing water flow-second washing water flow. In this embodiment, washing can be performed according to the cycle of "zero-stop water flow-first washing water flow-second washing water flow" according to actual washing conditions.

[0267] Specifically, as shown in FIG7 , the control steps include:

[0268] S1, start washing;

[0269] S2, presetting the first rotation-stop ratio Q1 and the second rotation-stop ratio Q2; for example, the first rotation-stop ratio Q1 is 0.8:0.4, and the second rotation-stop ratio Q1 is 1:1;

[0270] S3, control the impeller and the barrel to make continuous forward and reverse alternating motions in the same direction to form an upside-down zero-stop water flow;

[0271] S4, controlling the tub and the impeller to move in opposite directions, according to a first rotation-stop ratio Q1 of forward rotation-reverse rotation, to form a first washing water flow;

[0272] S5, controlling the barrel and the impeller to move in opposite directions, according to a second rotation-stop ratio Q2 of forward rotation-reverse rotation, to form a second washing water flow;

[0273] S6, determine whether the washing is completed, if so, execute step S7; otherwise, return to step S3;

[0274] S7. End washing.

[0275] In this embodiment, the first stop-start ratio Q1 is greater than the second stop-start ratio Q2, that is, within one stop-start cycle, the proportion of the rotation time of the barrel body and the impeller in the process of forming the first washing water flow is greater than the proportion of the rotation time of the barrel body and the impeller in the process of forming the second washing water flow; the proportion of the stop time of the barrel body and the impeller in the process of forming the first washing water flow is less than the proportion of the stop time of the barrel body and the impeller in the process of forming the second washing water flow.

[0276] In this way, the first washing water flow is in the circulation state for a longer period of time, that is, when the barrel and the impeller rotate in opposite directions, the circulating water flow rubs the clothes for a longer period of time, which can achieve a better washing effect on the clothes. The second washing water flow is in the circulation state for a shorter period of time, that is, when the barrel and the impeller rotate in opposite directions, the water flow is in the circulation state and the non-circulation state for an equal proportion of time. Such water flow can balance and correct the clothes in the barrel, keep the clothes in the barrel flat, and reduce clothes entanglement.

[0277] In this embodiment, washing is performed according to the cycle water flow of "zero-stop water flow-first washing water flow-second washing water flow". The zero-stop water flow realizes the rapid flipping of clothes, reduces the entanglement of clothes in the barrel, and reduces the wear and tear on clothes; the turned clothes are first rubbed and washed under the action of the first washing water flow, which has a good washing effect and can effectively remove stains on clothes; the clothes after rubbing and washing are then balanced and corrected under the action of the second washing water flow, which maintains the uniformity of clothing distribution while further untangling and reduces the wear and tear on clothes.

[0278] As an embodiment of the present invention, zero-water-stop flow intensity and washing water flow intensity corresponding to different clothing information are preset, clothing information in the barrel is obtained, and the zero-water-stop flow intensity and washing water flow intensity corresponding to the obtained clothing information are controlled and selected for washing.

[0279] In this embodiment, the clothing information includes: clothing material, clothing type, clothing soiling level, clothing load, etc. Presetting the zero-stop water flow intensity and wash water flow intensity corresponding to different clothing information includes selecting the zero-stop water flow intensity and wash water flow intensity that achieve the best washing results for different clothing items based on historical washing information, and using that zero-stop water flow intensity and wash water flow intensity as the corresponding zero-stop water flow intensity and wash water flow intensity for the clothing item.

[0280] In this embodiment, the corresponding zero-stop water flow intensity and washing water flow intensity are selected according to the actual situation of the clothes in the barrel, so that the water flow intensity can adapt to the clothes to be washed in the current barrel. The water flow intensity will not be too small, resulting in unclean washing, nor will it be too large, resulting in damage to the clothes.

[0281] As an implementation method of this embodiment, the zero-stop water flow intensity includes the rotation speed and rotation time of the impeller, or the barrel, or the impeller and the barrel; the washing water flow intensity includes the rotation speed and rotation-stop ratio of the impeller, or the barrel, or the impeller and the barrel.

[0282] For example: if you need to control and increase the zero-stop water flow intensity, you can do so by controlling and increasing the speed of the impeller and barrel and the rotation time; if you need to control and increase the washing water flow intensity, you can do so by controlling and increasing the speed of the impeller and barrel and the rotation-stop ratio.

[0283] In this embodiment, during the process of generating the zero-stop water flow, the greater the speed of the impeller and the barrel, and the longer the rotation time, the greater the kinetic energy of the water flow, and the stronger the intensity of the resulting up-and-down water flow, that is, the stronger the intensity of the zero-stop water flow, and the more significant the effect of up-and-down replacement of clothes. Conversely, the slower the speed of the impeller and the barrel, and the shorter the rotation time, the smaller the kinetic energy of the water flow, and the weaker the intensity of the resulting up-and-down water flow, that is, the weaker the intensity of the zero-stop water flow, and the slightly poorer the effect of up-and-down replacement of clothes.

[0284] In this embodiment, during the formation of the wash water flow, the greater the rotational speed of the impeller and the drum, and the rotation-stop ratio, the higher the circumferential water flow formed, the higher the speed of the circumferential water flow, and the stronger the rubbing and washing effect on the clothes, i.e., the higher the intensity of the wash water flow. Conversely, the smaller the rotational speed of the impeller and the drum, and the rotation-stop ratio, the lower the speed of the circumferential water flow formed, the shorter the flow time, and the weaker the rubbing and washing effect on the clothes, i.e., the lower the intensity of the wash water flow.

[0285] As an implementation method of this embodiment, the clothing information includes the dirtiness of the clothing, the dirtiness of the clothing in the barrel is obtained, and the zero-stop water flow intensity, or the washing water flow intensity, or the zero-stop water flow intensity and the washing water flow intensity are controlled to be positively correlated with the obtained dirtiness of the clothing.

[0286] Further preferably, the rotation speed of the impeller and the barrel during the zero-stop water flow, or the rotation time, or the rotation speed and the rotation time are controlled to be positively correlated with the obtained degree of dirtiness of the clothes.

[0287] Further preferably, the rotation speed of the impeller and the barrel in the washing water flow, or the rotation-stop ratio, or the rotation speed and the rotation-stop ratio are controlled to be positively correlated with the obtained degree of dirtiness of the clothes.

[0288] Specifically, as shown in FIG8 , the control steps include:

[0289] S1, start washing;

[0290] S2, preset the first start-stop ratio Q1 and the second start-stop ratio Q2;

[0291] S3, obtaining the dirtiness of the clothes in the barrel;

[0292] S4, control the impeller and the barrel to make continuous forward and reverse alternating motions in the same direction to form an upside-down zero-stop water flow;

[0293] S5. Control the zero-stop water flow intensity to be positively correlated with the obtained degree of dirtiness of the clothes;

[0294] S6, controlling the barrel and the impeller to move in opposite directions, according to a first rotation-stop ratio Q1 of forward rotation-reverse rotation, to form a first washing water flow;

[0295] S7, controlling the intensity of the first washing water flow to be positively correlated with the obtained degree of dirtiness of the clothes;

[0296] S8, controlling the barrel and the impeller to move in opposite directions, according to a second rotation-stop ratio Q2 of forward rotation-reverse rotation, to form a second washing water flow;

[0297] S9, controlling the intensity of the second washing water flow to be positively correlated with the obtained degree of dirtiness of the clothes;

[0298] S10, determine whether the washing is completed, if so, execute step S11; otherwise, return to step S4;

[0299] S11, end washing.

[0300] In step S3 of this embodiment, obtaining the degree of dirtiness of the clothes in the barrel includes:

[0301] Method 1: The washing machine is equipped with soiling level buttons. The user can directly touch the level button to select the corresponding soiling level. The washing machine receives the touch information input by the user and obtains the soiling level of the clothes in the current drum. For example, the washing machine is equipped with "low soiling", "medium soiling" and "high soiling" level buttons.

[0302] Method 2: The washing machine is provided with an image acquisition device such as a camera; the washing machine pre-stores pictures of different clothes when they are clean, obtains pictures of the clothes in the barrel, and compares the obtained pictures of the clothes with the pre-stored pictures of the clothes when they are clean to obtain the degree of dirtiness of the clothes.

[0303] Method 3: The washing equipment includes a pre-wash program and a main wash program that are executed in sequence. After the water is fed in, the pre-wash program is first controlled to obtain the turbidity of the washing water in the washing equipment barrel. The turbidity of the washing water is the dirtiness of the clothes; according to the obtained dirtiness, the zero-water flow intensity and the washing water flow intensity in the subsequent main wash program are controlled.

[0304] In this embodiment, the dirtier the clothes in the barrel are, the more difficult it is to clean the clothes. At this time, the zero-stop water flow intensity is controlled to increase to achieve sufficient flipping and replacement of the clothes. At the same time, the washing water flow intensity is controlled to increase to wash the clothes strongly, ensuring a better cleaning effect on the clothes.

[0305] As another implementation of this embodiment, the clothing information includes the wear resistance of the clothing material, the wear resistance of the clothing material in the barrel is obtained, and the zero-stop water flow intensity, or the washing water flow intensity, or the zero-stop water flow intensity and the washing water flow intensity are controlled to be positively correlated with the obtained wear resistance.

[0306] Specifically, as shown in FIG9 , the control steps include:

[0307] S1, start washing;

[0308] S2, preset the first start-stop ratio Q1 and the second start-stop ratio Q2;

[0309] S3, obtaining the wear resistance of the clothing material in the barrel;

[0310] S4, control the impeller and the barrel to make continuous forward and reverse alternating motions in the same direction to form an upside-down zero-stop water flow;

[0311] S5. Controlling the zero-stop flow intensity is positively correlated with the obtained wear resistance;

[0312] S6, controlling the barrel and the impeller to move in opposite directions, according to a first rotation-stop ratio Q1 of forward rotation-reverse rotation, to form a first washing water flow;

[0313] S7, controlling the intensity of the first washing water flow to be positively correlated with the obtained wear resistance;

[0314] S8, controlling the barrel and the impeller to move in opposite directions, according to a second rotation-stop ratio Q2 of forward rotation-reverse rotation, to form a second washing water flow;

[0315] S9, controlling the intensity of the second washing water flow to be positively correlated with the obtained wear resistance;

[0316] S10, determine whether the washing is completed, if so, execute step S11; otherwise, return to step S4;

[0317] S11, end washing.

[0318] In step S3 of this embodiment, obtaining the wear resistance of the clothing material in the barrel includes:

[0319] The washing equipment has a preset database of wear resistance corresponding to different materials. For example, linen, cotton, silk, leather, etc. have corresponding wear resistance. The material type of the clothes can be identified and the corresponding wear resistance can be selected according to the identified material type.

[0320] In this embodiment, the user can also set the wear resistance of different clothes according to his or her dressing habits, and pre-store the set wear resistance in the database of the washing device. In this way, by identifying the clothes in the current barrel, the corresponding wear resistance can be retrieved.

[0321] In this embodiment, if the wear resistance of the clothes in the tub is high, it indicates that the clothes are not easily worn during the washing process. In this case, the zero-stop water flow intensity and the wash water flow intensity can be controlled to be high to prioritize ensuring a good washing effect and high washing efficiency. Conversely, if the wear resistance of the clothes in the tub is low, it indicates that the clothes are easily worn during the washing process. In this case, the zero-stop water flow intensity and the wash water flow intensity can be controlled to be low to avoid damaging the clothes.

[0322] As another implementation of this embodiment, the clothing information includes the type of clothing, a preset type of clothing that is easily deformed, the type of clothing in the barrel is obtained, and it is determined whether the obtained type of clothing belongs to the type of clothing that is easily deformed. If so, the zero-stop water flow intensity, or the washing water flow intensity, or the zero-stop water flow intensity and the washing water flow intensity are controlled to be reduced.

[0323] Specifically, the washing device is preset with a "database of easily deformable clothing", in which easily deformable clothing types are pre-stored, such as underwear, shirts, suits, etc.; the washing device is controlled to identify the type of clothing in the barrel. If the identified type belongs to one or more types in the "database of easily deformable clothing", it is judged that the acquired clothing type belongs to easily deformable clothing.

[0324] Alternatively, the washing device is provided with a "deformation level button", and the user can directly touch the "deformation level button" according to his actual washing needs. If the washing device receives the touch information input by the user, it is determined that the type of clothing obtained is easily deformed clothing.

[0325] In this embodiment, if the clothes in the barrel are easily deformed, it means that the clothes are easily deformed and wrinkled during the washing process, which will damage the clothes. At this time, the zero-stop water flow intensity and the washing water flow intensity can be controlled to be reduced to avoid damage to the clothes and affect the user experience.

[0326] As an embodiment of the present invention, the water inlet level in the barrel is obtained, and the zero-stop water flow intensity, or the washing water flow intensity, or the zero-stop water flow intensity and the washing water flow intensity are controlled to increase as the obtained water inlet level increases.

[0327] In this embodiment, the higher the water level, the more clothes are put into the barrel. At this time, the zero-stop water flow intensity and the washing water flow intensity are controlled to be stronger to achieve sufficient washing of the clothes in the barrel.

[0328] As an implementation of this embodiment, the increase range of the zero-stop water flow intensity, or the washing water flow intensity, or the zero-stop water flow intensity and the washing water flow intensity is controlled to increase with the increase of the obtained water inlet level.

[0329] Preferably, the water inlet level V0 is preset, and the increase amplitude when the water inlet level is lower than the preset water inlet level V0 is controlled to be smaller than the increase amplitude when the water inlet level is higher than the preset water inlet level V0.

[0330] Furthermore, the present invention provides an embodiment in which a washing device is preset with a default washing program, and the default washing program cycles washing according to the cycle of "30s zero water stop flow-60s first washing water flow-30s second washing water flow" until the preset washing time is reached.

[0331] In the technical solution of this embodiment, for clothes that are highly soiled, based on the default washing program, the rotation time of the zero water stop flow and the first washing water flow in one rotation cycle is increased by 0.2s, and the pause time of the first washing water flow in one rotation cycle is increased by 0.2s.

[0332] Alternatively, for heavily soiled clothes, the control adjusts the default washing program of "30s zero water stop - 60s first washing water flow - 30s second washing water flow" to "40s zero water stop - 60s first washing water flow - 20s second washing water flow".

[0333] For delicate clothes, which are easy to wear and tear, the duration of zero water flow can be controlled and reduced to reduce the wear and tear on the clothes, while the washing water flow time remains unchanged to ensure better cleaning effect.

[0334] As an embodiment of the present invention, the washing device includes a barrel for accommodating clothes and a impeller located at the bottom of the barrel. The washing device also includes a driving program for driving the impeller and the barrel forward and reverse. Specifically, the driving program can drive the impeller forward and reverse alone, drive the barrel forward and reverse alone, or drive the impeller and the barrel forward and reverse at the same time. The rotation directions of the impeller and the barrel can be the same or opposite.

[0335] In the present invention, if the driver drives the impeller and the barrel body to rotate forward and reverse simultaneously, the impeller and the barrel body will rotate in the same direction.

[0336] The driver can drive the impeller and the barrel body to rotate forward, and can also change the driving direction to drive the impeller and the barrel body to rotate reversely.

[0337] The forward and reverse rotations mentioned above do not have fixed directions and are only for convenience of description. Forward rotation can refer to either clockwise or counterclockwise rotation; reverse rotation can refer to either clockwise or counterclockwise rotation. To enhance the effect of water flow on the turning of clothes during the washing process and to ensure that the impeller and the drum do not pause when switching the rotation direction during the washing process, as shown in Figure 10, the following method is adopted:

[0338] S1: Start;

[0339] S2: Control the driver to drive the impeller and / or the barrel to rotate forward;

[0340] S3: Control the driver to stop forward driving;

[0341] S4: Determine whether the stop condition is met. If so, execute S9; otherwise, execute S5.

[0342] S5: Before the impeller and / or the barrel stop rotating forward, the driver is controlled to start reverse driving;

[0343] S6: Control the driver to stop reverse driving;

[0344] S7: Determine whether the stop condition is met. If so, execute S9; otherwise, execute S8.

[0345] S8: Before the reverse drive of the impeller and / or the barrel stops, the control driver starts the forward drive and executes S3;

[0346] S9: End.

[0347] The driver driving the impeller and / or the barrel body to rotate forwardly means that the driver can drive the impeller to rotate forwardly alone, can also drive the barrel body to rotate forwardly alone, or can drive the impeller and the barrel body to rotate forwardly at the same time.

[0348] The driver driving the impeller and / or the barrel body to reverse means that the driver can drive the impeller to reverse alone, can drive the barrel body to reverse alone, or can drive the impeller and the barrel body to reverse at the same time.

[0349] The stop condition in steps S4 and S7 may be reaching a preset time or reaching a preset number of forward or reverse driving times, and may be set according to actual needs.

[0350] In steps S5 and S6, the reverse drive is started at least once, among which the last reverse drive needs to start before the impeller and the barrel stop rotating forward by inertia and end after a certain reverse time. Except for the last reverse drive, the reverse drives are all very short-term, which are used to reduce the rotation speed of the impeller and the barrel.

[0351] In step S8, the forward drive is started at least once, wherein the last forward drive needs to start before the inertia reversal of the impeller and the barrel stops and ends after maintaining a certain forward rotation time. Except for the last forward drive, the forward drives are all turned on for a very short time and are used to reduce the rotation speed of the impeller and the barrel.

[0352] Under the control of this method, when the water flow in the barrel alternates between forward and reverse rotation, the water flow will quickly reduce its speed during forward rotation and directly turn into reverse rotation, without experiencing a stage where the water flow speed is continuously zero. This kind of water flow is called zero-stop water flow, and this forward and reverse switching is called zero-stop switching.

[0353] Specifically, the impeller (or the impeller and the barrel together) rotates forward, driving the water flow to rotate forward. Then, after the forward rotation drive is briefly turned off, the water flow continues to rotate forward under its own inertia. The reverse drive is turned on before the inertia forward rotation stops, causing the impeller to reverse rapidly, driving the forward rotating water flow to quickly change its rotation direction to reverse, thereby achieving direct change of rotation direction of the water flow when rotating forward, without experiencing a stage of zero speed in the middle, and achieving zero water flow stop.

[0354] Under the action of zero-stop water flow, the clothes in the barrel will continue to turn up and down in the barrel, so that the clothes can be evenly soaked and washed.

[0355] When the driver starts the drive in the opposite direction to the current rotation direction of the barrel and pulsator, the barrel and pulsator may still maintain a high speed. Directly connecting the drive in the opposite direction at this time may damage the motor that provides power to the driver. If you wait for the speed of the barrel and pulsator to naturally decrease to the point where the drive in the opposite direction can be connected, it may take a long time, reducing the washing efficiency. To solve this problem, as shown in Figure 11, take the following method:

[0356] The washing device includes first and second reverse rotation drives that are sequentially executed and first and second forward rotation drives that are sequentially executed.

[0357] Step S5 includes:

[0358] S51: Control to open and close the first reverse drive;

[0359] S52: Before the impeller and / or the barrel stop rotating forward, the driver is controlled to start the second reverse drive;

[0360] Step S8 includes:

[0361] S81: Control opening and closing of the first forward drive;

[0362] S82: Before the pulsator and / or barrel body stop rotating in reverse, the driver is controlled to start the second forward rotation drive and execute S3;

[0363] In order to prevent the first forward drive and the first reverse drive from directly slowing down the impeller and the barrel to a stop, the first forward drive and the first reverse drive need to be turned on and off in a short period of time. After the first forward drive and the first reverse drive are turned off, the control driver starts the second forward drive and the second reverse drive at a short interval to prevent the impeller and the barrel from stopping before the second forward drive and the second reverse drive are turned on.

[0364] Before the control driver applies a drive in the opposite direction of the current rotation of the impeller and the barrel, the drive in the opposite direction of the current rotation of the impeller and the barrel is briefly turned on. This can reduce the rotation speed of the impeller and the barrel to a level where the opposite direction drive can be safely applied in the shortest time, reducing the time waiting for the impeller and barrel rotation speed to be reduced and improving washing efficiency.

[0365] As an embodiment of the present invention, after the impeller and the barrel are decelerated, the speed of the impeller and the barrel due to inertial rotation decreases. However, because the impeller and the barrel have different maximum speeds when driven by the driver and the load of the barrel is different, the speeds after deceleration are different. Therefore, it is possible that the speed is still too high after deceleration. To solve this problem, as shown in Figure 12, the following method is adopted:

[0366] S1: Start;

[0367] S2: Preset pulsator speed N 0波 ;

[0368] S3: Control the driver to drive the impeller and / or the barrel to rotate forward;

[0369] S4: Control the driver to stop forward driving;

[0370] S5: Determine whether the stop condition is met. If so, execute S10; otherwise, execute S61.

[0371] S61: Control to open and close the first reverse drive;

[0372] S62: Control and obtain the impeller speed N 波 ;

[0373] S63: Compare the acquired rotation speed N 波 With the preset speed N 0波 The size of N 波 ≤N 0波 , then execute S64, otherwise execute S62;

[0374] S64: Control the driver to start the second reverse drive;

[0375] S7: Control the driver to stop reverse driving;

[0376] S8: Determine whether the stop condition is met, if so, execute S10, otherwise execute S91;

[0377] S91: Control opening and closing of the first forward drive;

[0378] S92: Control and obtain the impeller speed N 波 ;

[0379] S93: Compare the acquired rotation speed N 波 With the preset speed N 0波 The size of N 波 ≤N 0波 , then execute S94, otherwise execute S92;

[0380] S94: Control the driver to start the second forward drive and execute S4;

[0381] S10: End.

[0382] After detecting the impeller speed N 波 Less than or equal to the preset impeller speed N 0波 After that, the driver is immediately controlled to start the drive in the opposite direction of the current rotation direction of the pulsator and the barrel.

[0383] The speed obtained in steps S62 and S92 can also be the speed N of the barrel. 0桶 , correspondingly, in step S2, the preset speed is the barrel speed N 0桶 .

[0384] Furthermore, the preset impeller speed N 0波 And the preset barrel speed N 0桶 They can be the same or different and can be set according to specific needs.

[0385] The washing equipment also includes a motor that provides power to the impeller and the barrel.

[0386] The speed obtained in steps S62 and S92 can also be the speed N of the motor. 0机 , correspondingly, in step S2, the preset speed is the barrel speed N 0机 .

[0387] In this embodiment, after the impeller and the barrel are decelerated, the rotation speed of the impeller or the barrel is detected. 波 Reduce to the preset impeller speed N 0波 Later, or barrel speed N 桶 Reduce to the preset barrel speed N 0桶 Afterwards, the driver is controlled to start a second forward drive or a second reverse drive in the opposite direction of the current rotation direction of the impeller. This can avoid the impeller and the barrel having a high speed after deceleration, and the driving force applied by the driver and the inertial rotation of the impeller and the barrel having too strong an impact, causing damage to the vibration device of the washing equipment.

[0388] As an implementation method of this embodiment, after the first deceleration, if the rotation speed of the impeller and the barrel is still too high, the second forward drive or the second reverse drive cannot be started immediately. However, if the rotation speed is naturally reduced by inertia, it may take a long time. To solve this problem, as shown in Figure 13, the following method is adopted:

[0389] S1: Start;

[0390] S2: Preset pulsator speed N 0波 、N N波 , N N波 >N 0波 ;

[0391] S3: Control the driver to drive the impeller and / or the barrel to rotate forward;

[0392] S4: Control the driver to stop forward driving;

[0393] S5: Determine whether the stop condition is met. If so, execute S10; otherwise, execute S61.

[0394] S61: Control to open and close the first reverse drive;

[0395] S62: Control and obtain the impeller speed N 波 ;

[0396] S63: Compare the acquired rotation speed N 波 With the preset speed N N波 The size of N 波 ≥N N波 , then execute S64, otherwise execute S65;

[0397] S64: Control to open and close the second reverse drive, and execute S62;

[0398] S65: Compare the acquired rotation speed N 波 With the preset speed N 0波 The size of N 波 ≤N 0波 , then execute S66, otherwise execute S62;

[0399] S66: Control the driver to start the third reverse drive;

[0400] S7: Control the driver to stop the third reverse drive;

[0401] S8: Determine whether the stop condition is met, if so, execute S10, otherwise execute S91;

[0402] S91: Control opening and closing of the first forward drive;

[0403] S92: Control and obtain the impeller speed N 波 ;

[0404] S93: Compare the acquired rotation speed N 波 With the preset speed N N波 The size of N 波 ≥N N波 , then execute S94, otherwise execute S95;

[0405] S94: Control opening and closing of the second forward drive, and execute S92;

[0406] S95: Compare the acquired rotation speed N 波 With the preset speed N 0波 The size of N 波 ≤N 0波 , then execute S96, otherwise execute S92;

[0407] S96: Control the driver to start the third forward drive and execute S4;

[0408] S10: End.

[0409] In steps S62 and S92, the rotation speed N of the barrel can also be obtained. 桶 , correspondingly, in step S2, the barrel speed N needs to be preset 0波 、N N波 , and N N桶 >N 0桶 .

[0410] In steps S62 and S92, the motor speed N can also be obtained. 机 , correspondingly, in step S2, the motor speed N needs to be preset0机 、N N机 , and N N机 >N 0机 .

[0411] In this embodiment, after the first forward drive or the first reverse start, the impeller speed N 波 Perform the test, if the speed of the impeller N 波 Greater than or equal to the preset speed N N波 , it means that the speed of the pulsator is too high and it can be slowed down again. After the speed reduction, the pulsator will not be directly slowed down to a stop, which effectively speeds up the speed at which the pulsator and the barrel change their rotation direction and speeds up washing.

[0412] As another embodiment of the present invention, after the driver stops forward driving or reverse driving, according to the method of the above embodiment, it is necessary to continuously monitor the impeller speed and set up a matching speed monitoring device, which is costly. In addition, if the speed sensor is damaged or malfunctions in actual use, it will directly affect the opening and closing of the driver. To solve this problem, as shown in Figure 14, the following method is adopted:

[0413] S1: Start;

[0414] S2: preset time T0;

[0415] S3: Control the driver to drive the impeller and / or the barrel to rotate forward;

[0416] S4: Control the driver to stop forward driving and start timing;

[0417] S5: Determine whether the stop condition is met. If so, execute S10; otherwise, execute S61.

[0418] S61: Obtaining the timing time T;

[0419] S62: Compare the obtained timing time T with the preset time T0. If T≥T0, execute S63; otherwise, execute S61.

[0420] S63: Control opening and closing of the first reverse drive;

[0421] S64: Control to start the second reverse drive;

[0422] S7 controls the second reverse drive to be turned off and starts timing;

[0423] S8: Determine whether the stop condition is met, if so, execute S10, otherwise execute S91;

[0424] S91: Obtaining the timing time T;

[0425] S92: Compare the obtained timing time T with the preset time T0. If T≥T0, execute S93; otherwise, execute S91.

[0426] S93: Control to start the first forward drive and execute S4;

[0427] S10: End.

[0428] After the barrel and / or pulsator stops driving in the forward or reverse direction, M Stop inertial rotation at the preset time T0<T M .

[0429] The preset time T0 can be a value determined through experiments. At time T0 after the drive ends, the impeller and the barrel body have not stopped rotating, and the rotation speed has also decreased to the point where the first reverse drive or the first forward drive can be applied.

[0430] In this embodiment, by setting the time, the impeller and the barrel are controlled to be driven in the opposite direction of their current rotation direction. There is no need to continuously monitor the rotation speed of the impeller and the barrel, which avoids driver control errors caused by rotation speed detection errors and failure of the sensor used to detect the rotation speed, and the control is also simpler.

[0431] As one implementation of this embodiment, the impeller and the barrel rotate at different speeds. Consequently, after the drive stops, the speeds required to slow down to a point where a drive in the opposite direction of the current rotation can be applied differs. To address this issue, the impeller or barrel rotation speed can be acquired at the end of the forward drive, and the preset time T0 can be controlled to be positively correlated with the acquired impeller or barrel rotation speed.

[0432] There are many ways to obtain the rotation speed of the impeller and the barrel. It can be obtained through a sensor for monitoring the rotation speed of the impeller and the barrel, or by retrieving data records from a driver.

[0433] In this embodiment, the washing device adjusts the preset time T0 through the rotation speed of the impeller or the barrel, which can more accurately control the start of the forward driving and reverse driving of the driving program.

[0434] As another embodiment of this embodiment, the weight of the clothes in the barrel is different, and the inertia thereof is also different. The heavier the clothes in the barrel, the greater the inertia, and the slower the deceleration. The lighter the clothes in the barrel, the smaller the inertia, and the faster the deceleration.

[0435] After the clothes are put into the washing machine and before water is added to the washing machine, the weight of the clothes in the barrel is obtained, and the preset time T0 is controlled to be positively correlated with the obtained weight of the clothes in the barrel.

[0436] There are many ways to obtain the weight of the clothes in the barrel, such as installing a weight sensor, or driving the barrel and calculating the weight of the clothes in the barrel through data such as eccentricity. The present invention does not limit this.

[0437] In this embodiment, the preset time T0 is adjusted according to the weight of the clothes in the barrel, which can effectively reduce the error caused by the weight change of the clothes in the barrel on the activation of the forward and reverse drives, thereby improving the accuracy of control.

[0438] As another embodiment of the present invention, when the washing device is washing, the greater the weight of the clothes in the barrel, the greater the rotational inertia. In order to reduce the speed to a speed at which the driver can be controlled to start a second drive in the opposite direction of the current rotation of the pulsator and the barrel under different weights of clothes in the barrel, only by the first drive in the opposite direction of the current rotation of the pulsator and the barrel, the following method can be adopted:

[0439] After putting clothes into the barrel and before adding water, obtain the weight of the clothes in the barrel, and control the interval time between the first forward drive and the first reverse drive on and off in a positive correlation with the mass of the clothes in the barrel. The interval time between the first forward drive and the first reverse drive on and off is the duration of the first forward drive and the first reverse drive.

[0440] In this embodiment, the duration of the first forward drive and the first reverse drive is controlled according to the mass of the clothes in the barrel. When the mass of the clothes in the barrel is large, the duration of the first forward drive and the first reverse drive is controlled to be extended, which can enhance the deceleration effect. The longer first forward drive and the first reverse drive time offset the larger rotational inertia of the barrel body, so that the speed of the barrel body is quickly reduced, so that the second forward drive and the second reverse drive can be started as soon as possible; when the mass of the clothes in the barrel is small, the duration of the first forward drive and the first reverse drive is shortened to weaken the deceleration effect, which can avoid the impeller and the barrel body being directly decelerated to a stop.

[0441] As another embodiment of the present invention, when the weight of the clothes in the barrel is different, the zero-stop water flow intensity required to achieve the upside-down turning of the clothes in the barrel is also different. In order to achieve effective turning of the clothes under different clothing weights, the following method is adopted:

[0442] After putting clothes into the barrel and before adding water, the weight of the clothes in the barrel is obtained, and the maximum speed of the driver driving the pulsator and the barrel is controlled to be positively correlated with the weight of the clothes in the barrel.

[0443] Increase the maximum speed of the driver. When the impeller and the barrel are switched between forward and reverse rotation, the impact of the zero-stop water flow reversal will be stronger, which can bring a stronger turning effect to the clothes.

[0444] In this embodiment, when the weight of the laundry in the tub is heavy, the maximum rotational speed of the driver driving the pulsator and the tub is increased to enhance the turning effect on the laundry in the tub. When the weight of the laundry in the tub is light, the maximum rotational speed of the driver driving the pulsator and the tub is decreased to weaken the turning effect on the laundry in the tub and prevent excessive turning.

[0445] As another embodiment of the present invention, the duration of controlling the forward and reverse rotation of the pulsator and the barrel body is positively correlated with the weight of the clothes in the barrel body.

[0446] The duration of the forward and reverse rotation of the pulsator and / or the barrel refers to the time the pulsator and the barrel last in one continuous forward drive and reverse drive, and does not refer to the overall washing time.

[0447] As the drum and pulsator rotate, the speed of the wash water and clothes inside the drum always lags behind the pulsator and drum. Extending the duration of a continuous forward and reverse drive can effectively increase the speed of the wash water and clothes in the drum, thereby enhancing the turning effect of the clothes.

[0448] In this embodiment, when the weight of the clothes in the barrel is large, the rotation time of the impeller and the barrel in a continuous forward drive and reverse drive is controlled to be extended, which can enhance the flipping effect of the clothes; when the weight of the clothes in the barrel is large, the rotation time of the impeller and the barrel in a continuous forward drive and reverse drive is controlled to be shortened, which can weaken the flipping effect of the clothes in the barrel and prevent excessive flipping.

[0449] The washing equipment also includes a brake program for reducing the rotation speed of the barrel and the pulsator. When the barrel and the pulsator are rotating, the brake program is turned on to quickly reduce the rotation speed of the barrel and the pulsator.

[0450] There are many ways to achieve braking, which can be to control the driver to apply a drive to the barrel and the impeller in the opposite direction of the current rotation, or to set up a component specifically for braking, or to use other existing technologies that can achieve braking of the impeller and the barrel.

[0451] Furthermore, after the forward drive stops and before the inertial rotation of the impeller and the barrel stops, the brake program is controlled to be turned on and off at least once, and then the reverse drive is turned on;

[0452] After the reverse drive stops and before the inertial rotation of the impeller and the barrel stops, the control opens and closes the brake program at least once, and then opens the forward drive.

[0453] When starting the drive in the opposite direction of the current rotation, you can first start a braking program to reduce the rotation speed of the impeller and the barrel, so as to avoid directly starting the drive in the opposite direction of the rotation of the impeller and the barrel, which may cause vibration of the washing equipment.

[0454] As an embodiment of the present invention, a washing device includes a barrel for accommodating clothes and a pulsator located at the bottom of the barrel. The pulsator and the barrel can rotate separately or synchronously.

[0455] The washing equipment includes a zero-stop water flow. When the water flow in the barrel alternates between forward and reverse rotation, the water flow will quickly reduce the speed during forward rotation and directly turn into reverse rotation. It will not experience a stage where the water flow speed is continuously zero. This water flow is called zero-stop water flow, and this forward and reverse switching is called zero-stop switching.

[0456] Specifically, the impeller (or the impeller and the barrel together) rotates forward, driving the water flow to rotate forward. Then, after the forward rotation drive is briefly turned off, the water flow continues to rotate forward under its own inertia. When the water flow inertia rotates forward, the reverse drive is turned on to make the impeller reverse quickly, driving the forward-rotating water flow to quickly change its rotation direction to reverse, thereby realizing that the water flow directly changes its rotation direction when rotating forward, and will not experience a stage of zero speed in the middle, thus achieving zero water flow stoppage.

[0457] Under the action of the zero-stop water flow, the clothes are turned upside down in the barrel, simulating the process of soaking, fishing out, and soaking again in water when washing clothes by hand. During this process, the clothes can be fully soaked and can evenly contact the detergent in the water, thereby improving the washing effect.

[0458] The control obtains the information of the clothes in the barrel and selects the intensity of the zero-stop water flow according to the obtained clothing information.

[0459] The clothing information includes clothing information such as clothing weight, clothing material, etc., and may also include information such as the position and movement status of the clothing in the barrel.

[0460] As an embodiment of the present invention, the weight of the clothes in the barrel is controlled and the intensity of the zero-stop water flow is controlled to be positively correlated with the weight of the clothes in the barrel.

[0461] The weight of the clothes in the tub generally refers to the weight of the clothes before water enters the tub. However, because the amount of water entering the tub is related to the weight of the clothes, the total weight of the clothes and water can also be used to represent the weight of the clothes. Furthermore, the water level can be used to represent the weight of the clothes.

[0462] There are many ways to obtain the weight of the clothes in the barrel. You can weigh the clothes after putting them in, or you can obtain the water level in the barrel after the water is added, and use the water level to represent the weight of the clothes.

[0463] The intensity of the zero-stop water flow refers to the ability of the water flow to turn the clothes upside down in the barrel. The stronger the zero-stop water flow, the more violently the clothes turn upside down in the barrel.

[0464] In the present invention, when the weight of the clothes in the barrel is large, the intensity of the zero-stop water flow is controlled to increase, which can enhance the zero-stop water flow's ability to flip the clothes and avoid the clothes being unable to be flipped due to being too heavy; when the weight of the clothes in the barrel is small, the intensity of the zero-stop water flow is controlled to decrease, which can avoid the clothes being flipped too violently and causing uneven washing of the clothes.

[0465] As an embodiment of the present invention, the method for achieving zero water flow stoppage is: the impeller rotates alternately in forward and reverse directions. When rotating alternately, the impeller does not pause, and directly switches to reverse direction when rotating forward, and directly switches to forward direction when rotating reversely.

[0466] When achieving zero water stoppage, the impeller can rotate alone, or the impeller and the barrel can rotate synchronously in the same direction. When the impeller and the barrel rotate synchronously in the same direction, the zero water stoppage will be stronger than when only the impeller rotates alone.

[0467] In this embodiment, there is no pause when the impeller switches between forward and reverse rotation, so that the impeller can change the direction of rotation of the water flow more quickly when switching the rotation direction, preventing the clothes from stopping moving when the water flow stagnates, thereby achieving the effect of continuously flipping the clothes upside down.

[0468] As an implementation of this embodiment, the zero-stop water flow needs to be increased or decreased according to the weight of the clothes in the barrel. The method of increasing the zero-stop water flow is:

[0469] After the impeller rotates forward for time T1, it switches to reverse rotation without stopping. After the impeller rotates reversely for time T2, it switches to forward rotation without stopping.

[0470] The times T1 and T2 may be the same or different;

[0471] Preferably, T1 and T2 are the same.

[0472] The intensity of the zero-stop water flow can be increased by controlling and extending the time T1 and T2, or controlling and increasing the speed of the impeller.

[0473] If the barrel body and the impeller move synchronously, the rotation time of the barrel body will be extended synchronously.

[0474] The time periods T1 and T2 can be extended, or the impeller speed can be increased, or both can be extended and the impeller speed can be increased. Extending both T1 and T2 and increasing the impeller speed simultaneously has a stronger effect on enhancing the zero-stop water flow than simply extending T1 and T2 or increasing the impeller speed.

[0475] When the impeller rotates, the water flow moves with it. Under the turning action of the water flow, the clothes are continuously flipped up and down. The longer the impeller rotates in the same direction, the greater the amplitude of the clothes flipping in the same direction.

[0476] The higher the speed of the impeller, the faster the zero-stop water flow moves, the faster the clothes flip, and in the same amount of time, the greater the flipping amplitude of the clothes.

[0477] In this embodiment, controlling the extension time T1 and T2 can increase the flipping amplitude of the clothes in one flip, thereby enhancing the flipping effect, or increase the rotation speed of the impeller to increase the flipping speed of the clothes, thereby increasing the flipping amplitude of the clothes in the same time, and ultimately enhancing the flipping effect.

[0478] As another embodiment of the present invention, during washing, even if the zero-stop water flow intensity is adjusted according to information such as the weight and material of the clothes in the tub, it is still impossible to guarantee that the final flipping result will meet the expectations. Therefore, it is necessary to monitor the actual flipping effect and adjust the zero-stop water flow according to the monitoring results. As shown in Figure 15, the control method used is as follows:

[0479] S1: Start;

[0480] S2: Preset the first reversal efficiency P1 and start the zero-stop water flow;

[0481] S3: Control and obtain the turning efficiency P of the clothes in the barrel;

[0482] S4: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S5; otherwise, execute S6.

[0483] S5: Control to increase the intensity of the zero-water flow and / or increase the reversal time, and execute S6;

[0484] S6: Maintain zero water flow for a preset time;

[0485] S7: End.

[0486] The turning efficiency refers to the speed at which the clothes turn in the tub. The first turning efficiency P1 refers to the minimum turning efficiency at which the clothes can achieve the expected turning effect.

[0487] When P≤P1, it means that the current flipping effect of the clothes is not good. When the flipping is completed, the expected flipping effect cannot be obtained. At this time, the flipping efficiency needs to be improved.

[0488] When the turnover efficiency needs to be improved, the intensity of the zero-stop water flow can be increased, the turnover time can be increased, or the turnover time can be increased while increasing the intensity of the zero-stop water flow.

[0489] In this embodiment, when the tumbling efficiency of the clothes is low, controlling to increase the intensity of the zero-stop water flow or increasing the tumbling time can effectively improve the tumbling effect at the end of tumbling.

[0490] As another embodiment of the present invention, when the clothes are turned over, if the turning efficiency is too high, the clothes may have turned over at least one time and returned to the starting point. If the turning is stopped and the clothes are washed again, the washed part will be the same part, and the clothes cannot be washed evenly. To solve this problem, as shown in Figure 16, the following method is adopted:

[0491] S1: Start;

[0492] S2: Preset the first reversal efficiency P1 and start the zero-stop water flow;

[0493] S3: Control and obtain the turning efficiency P of the clothes in the barrel;

[0494] S4: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S5; otherwise, execute S6.

[0495] S5: Control to increase the intensity of the zero-water flow and / or increase the reversal time, and execute S9;

[0496] S6: Preset the second flipping efficiency P2, P2>P1;

[0497] S7: Compare the obtained flipping efficiency P with the preset second flipping efficiency P2. If P≥P2, execute S8; otherwise, execute S9.

[0498] S8: Control to reduce the intensity of the zero-water flow and / or reduce the reversal time, and execute S9;

[0499] S9: Maintain zero water flow for the preset time;

[0500] S10: End.

[0501] Among them, steps S6 to S9 can also be used independently without being combined with steps S2 to S5.

[0502] When the obtained turning efficiency P is greater than or equal to the second turning efficiency P2, it means that the turning speed of the clothes is too fast, which is likely to cause uneven washing.

[0503] In this embodiment, when the turning efficiency P of the clothes is too large, controlling and reducing the intensity of the zero-stop water flow can effectively reduce the turning efficiency, thereby controlling the amplitude of each turning within a certain range. After each turning, different positions on the clothes can be washed, thereby achieving better washing effects.

[0504] As another embodiment of the present invention, when turning clothes, the amount of water in the tub significantly influences turning efficiency, in addition to turning time and turning intensity. Turning of clothes in the tub is primarily driven by the zero-stop water flow. Only with sufficient water and zero-stop water flow can the turning force be sufficient.

[0505] Furthermore, for clothes to be completely turned over, the water in the drum needs to provide sufficient buoyancy and a certain degree of lubrication. If the water level is too low, the friction between the clothes themselves and between the drum and the impeller will be high, making it difficult to turn the clothes over. In this case, increasing the intensity of the zero-stop water flow or increasing the turning time will increase the wear of the clothes. To solve this problem, as shown in Figure 17, the following method is adopted:

[0506] S1: Start;

[0507] S2: Preset the first reversal efficiency P1 and start the zero-stop water flow;

[0508] S3: Control and obtain the turning efficiency P of the clothes in the barrel;

[0509] S4: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S51; otherwise, execute S6.

[0510] S51: Control to add a set amount of washing water into the barrel, and execute S52;

[0511] S52: Control to increase the intensity of the zero-water flow and / or increase the reversal time, and execute S9;

[0512] S6: Preset the second flipping efficiency P2, P2>P1;

[0513] S7: Compare the obtained flipping efficiency P with the preset second flipping efficiency P2. If P≥P2, execute S8; otherwise, execute S9.

[0514] S8: Control to reduce the intensity of the zero-water flow and / or reduce the reversal time, and execute S9;

[0515] S9: Maintain zero water flow for the preset time;

[0516] S10: End.

[0517] The set amount of washing water in step S51 refers to a pre-set amount of water. For example, the water level in the barrel can be divided into water levels one to ten from low to high, and the set amount of washing water can be the water level value that increases the water level in the barrel by one level.

[0518] In this embodiment, before increasing the intensity of the zero-stop water flow or increasing the flipping time, water is controlled to be added to the washing device. On the one hand, the flipping force of the zero-stop water flow can be enhanced by increasing the amount of water, thereby strengthening the flipping effect. On the other hand, it can also provide greater buoyancy and lubrication for the clothes, thereby reducing the friction between the clothes and between the clothes and the barrel body, making it easier for the clothes to flip, thereby strengthening the flipping effect.

[0519] As another embodiment of the present invention, after adjustment, the turning effect of the clothes with zero water flow may still not meet the requirements. To deal with this situation, as shown in FIG18 , the following method can be adopted:

[0520] S1: Start;

[0521] S2: Preset the first reversal efficiency P1 and start the zero-stop water flow;

[0522] S3: Control and obtain the turning efficiency P of the clothes in the barrel;

[0523] S4: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S51; otherwise, execute S6.

[0524] S51: Control to add a set amount of washing water into the barrel, and execute S52;

[0525] S52: Control to increase the intensity of the zero-water flow and / or increase the reversal time, and execute S53;

[0526] S53: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S54; otherwise, execute S9.

[0527] S54: Control sending a prompt message to the user to query whether the clothes are of the same color. If so, execute S55; otherwise, execute S57;

[0528] S55: controlling the position change of the clothes in the image to obtain the turning efficiency P of the clothes;

[0529] S56: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S57; otherwise, execute S9.

[0530] S57: Control sending a prompt message to the user to remind the user that the clothes are overweight, and execute S9.

[0531] S6: Preset the second flipping efficiency P2, P2>P1;

[0532] S7: Compare the obtained flipping efficiency P with the preset second flipping efficiency P2. If P≥P2, execute S8; otherwise, execute S9.

[0533] S8: Control to reduce the intensity of the zero-water flow and / or reduce the reversal time, and execute S9;

[0534] S9: Maintain zero water flow for the preset time;

[0535] S10: End.

[0536] After increasing the intensity of the zero-stop water flow or increasing the flipping time, if the flipping efficiency still cannot reach the expected level (i.e. the preset first flipping efficiency P1), it may mean that there are too many clothes and the flipping force applied by the zero-stop water flow is insufficient, but it may also be that there is an error in the flipping efficiency P obtained.

[0537] There are many factors that can lead to errors. For example, if all the clothes in the wash are the same color, the color of the clothes cannot be effectively distinguished from each other, making it impossible to determine the movement and turnover of the clothes, and thus unable to further analyze the turnover efficiency. In this case, regardless of the actual turnover efficiency, the monitored turnover efficiency will be extremely low.

[0538] After increasing the intensity of the zero-water flow or increasing the flipping time, if the flipping efficiency still cannot meet expectations (that is, higher than the first preset flipping efficiency P1), it is necessary to determine whether the flipping efficiency obtained is incorrect because the clothes are of the same color.

[0539] At this time, it is necessary to push information to the user to inquire whether the clothes are the same color. If the clothes are the same color, the flipping efficiency can only be obtained through the position of the clothes. If the obtained flipping efficiency is still lower than the first preset flipping efficiency P1, it means that the clothes are too heavy and the zero-stop water flow generated by the washing equipment cannot effectively flip the clothes.

[0540] In step S54, if the user does not reply within the set time whether the clothes are of the same color, the clothes continue to be turned over according to the current zero water flow.

[0541] In step S57, after determining that the clothes are overweight, you can continue washing according to the current zero water flow, or pause for a certain time, waiting for the user to take out some clothes or adjust the position of the clothes, and continue washing after the user handles it or the set pause time ends.

[0542] It is also possible to not send any prompts or inquiry information to the user during the washing process. The user can continue washing after the turning intensity increases to the maximum. After the washing is completed, a message is sent to the user to remind the user that the clothes are overweight.

[0543] There are many ways to send prompt information to the user, such as connecting the washing machine to the Internet of Things, and sending prompt information to a communication device connected to the washing machine, such as the user's mobile phone, such as sending a text message, or issuing a prompt information on a mobile phone application; for example, outputting prompt information on the display (such as a digital tube) of the washing machine itself (such as displaying EE on the digital tube).

[0544] In this embodiment, if the tumbling efficiency still fails to reach the preset value after increasing the tumbling intensity and tumbling time, it is determined whether the laundry is overweight or the tumbling efficiency is incorrectly obtained due to the laundry color. While inquiring the user about the laundry color and providing an overweight reminder, the washing process continues. This allows the user to adjust the laundry weight and position in a timely manner while also preventing delays in the event that the user is too busy to attend.

[0545] As an implementation of this embodiment, as shown in FIG19 , the method for obtaining the turning efficiency of the clothes in the barrel in step S3 is as follows:

[0546] Step S3 includes:

[0547] S31: Control to obtain images of the clothes in the barrel at least twice;

[0548] S32: Analyze the color and / or position changes of the clothes in the image to obtain the turning efficiency of the clothes;

[0549] The clothing image obtained in step S31 is preferably taken from top to bottom, so that the shape of the clothing located at the top can be obtained from the image.

[0550] Analyzing the colors of the clothes in the image in step S32 means that different clothes may have different colors. When washing, clothes are soaked and stacked, so using the colors of clothes to distinguish different clothes is a more effective method. For example, by comparing the shape, position, and area of ​​the same color in two images, the movement and flipping distance of the clothes can be analyzed and calculated, and then combined with the interval time of obtaining the images, the flipping efficiency of the clothes can be obtained.

[0551] Analyzing the position of clothing in the image in step S32 refers to distinguishing different clothing through information such as the shape of the clothing, local features of the clothing (such as the shape of the neckline), material, color, etc., and determining the position of the same clothing in different images, and then analyzing and calculating the movement and flipping distance, and then combining the interval time for obtaining the images to obtain the flipping efficiency of the clothing.

[0552] The flipping efficiency can be obtained by analyzing the color of the clothes in the image, or by analyzing the position of the clothes in the image, or by analyzing the color of the clothes in the image in combination with analyzing the position of the clothes in the image.

[0553] Other methods for obtaining the flipping efficiency may also be used, and the present invention does not limit this.

[0554] In this embodiment, the flipping efficiency of the clothes is determined by the color and position of the clothes, and the actual flipping situation of the clothes can be monitored in real time to adjust the flipping intensity and flipping time to ensure that a better flipping effect can be obtained after the flipping is completed.

[0555] As another implementation of this embodiment, the pulsator washing machine scrubs the clothes by friction with the inner wall of the drum during washing, thereby removing scale. However, for clothes such as silk and wool, we often want to minimize wear and tear to extend the wearing life of such clothes. To solve this problem, as shown in Figure 20, the following method can be adopted:

[0556] S1: Start;

[0557] S2: preset clothing wear resistance R0;

[0558] S3: Control the acquisition of clothing material;

[0559] S4: Select the wear resistance R corresponding to the clothing material;

[0560] S5: Compare the selected wear resistance R with the preset wear resistance R0. If the obtained wear resistance is less than or equal to the preset wear resistance, execute S6; otherwise, execute S7.

[0561] S6: Control and extend the forward and reverse rotation time of the barrel and / or the impeller, and execute S7;

[0562] S7: start zero-stop water flow;

[0563] S8: End.

[0564] The wear resistance refers to the ability of clothing to resist wear when friction occurs. The lower the wear resistance, the easier the clothing is to wear.

[0565] The wear resistance of clothing is mainly related to the material of the clothing and the surface treatment technology of the clothing. Silk, wool and other clothing have low wear resistance and are easily damaged by excessive wear and tear, shortening their service life. Therefore, it is necessary to minimize the wear and tear of clothing during the washing process.

[0566] The washing machine pre-stores data on the relationship between clothing material and wear resistance. Before washing, the user enters the clothing material information. Alternatively, an image acquisition device can be provided to capture images of the clothing in the washing machine drum and analyze the clothing material. The pre-stored data on the relationship between clothing material and wear resistance is then retrieved to determine the clothing's wear resistance.

[0567] In this embodiment, the clothes are turned upside down in the drum during the forward and reverse rotation of the pulsator. Extending the forward and reverse rotation times can increase the turning amplitude of the clothes, so that the clothes form an "S"-shaped trajectory in the water. The clothes are almost completely turned in the water during washing, and almost do not come into contact with the inner wall of the drum, thereby reducing wear and tear on the clothes.

[0568] As an implementation of this embodiment, a specific method for controlling zero water flow stoppage in washing equipment is proposed.

[0569] The water level of the washing equipment is divided into ten gears from low to high, and the intensity of the zero-stop water flow is set from low to high to four gears: weak, medium, strong, and extremely strong. The gears of the zero-stop water flow are distinguished by the impeller speed and the single forward and reverse rotation time of the impeller.

[0570] The low-speed pulsator has a longer single forward and reverse rotation time than the medium-speed pulsator. It is used to wash easily worn clothes such as silk and wool, so that the clothes can be turned in the water to reduce friction with the inner wall of the barrel.

[0571] For ordinary clothes other than wool, silk and other easily worn clothes, medium-grade washing is generally used, as follows:

[0572] S1: Start;

[0573] S2: preset the first flipping efficiency P1;

[0574] S3: Turn on the medium-speed turning over of clothes, and after the interval T1, control and obtain the turning efficiency P;

[0575] S4: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S5; otherwise, execute S15.

[0576] S5: Control the shift from the middle gear to the strong gear, extend the reversal time T2, and execute S6;

[0577] S6: After the flip time T1, the control obtains the flip efficiency P;

[0578] S7: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S8; otherwise, execute S15.

[0579] S8: Control the medium gear to be raised to the extreme gear, and extend the reversal time T2, and execute S9;

[0580] S9: After the flip time T1, the control obtains the flip efficiency P;

[0581] S10: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S11; otherwise, execute S15.

[0582] S11: Control the water level gear to rise one gear and continue to flip;

[0583] S12: After the flip time T1, the flip efficiency P is obtained;

[0584] S13: Compare the obtained flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S14; otherwise, execute S15.

[0585] S14: After washing is completed, a washing abnormality message is pushed to the user, and S16 is executed;

[0586] S15: Maintain the current zero water flow until the reversal time ends;

[0587] S16: End.

[0588] Preferably, T1 = 2 minutes.

[0589] Each flipping has a set time. After the set time is over, the washing water flow is used to wash the clothes. After the washing for the set time is completed, the zero-stop water flow is started to flip the clothes, thus realizing the alternating cycle of flipping and washing until the washing is completed.

[0590] In this embodiment, during the flipping process, the flipping efficiency is continuously monitored and adjusted to ensure that the expected flipping effect is obtained.

[0591] As another embodiment of the present invention, the actual turning effect of the laundry by the washing machine is affected by many factors, such as the rotation speed of the impeller and the drum, the weight and type of the laundry, and the amount of wash water. Therefore, even after using the control method in the above embodiment, it is still possible to achieve an unsatisfactory turning effect. To ensure the purpose of effectively turning the laundry, the following method is used:

[0592] During washing, the control obtains the turning efficiency of the clothes in the barrel. If the turning efficiency is lower than the preset turning efficiency, the control increases the maximum speed of the driver to drive the pulsator and the barrel;

[0593] Alternatively, during washing, the control obtains the turning efficiency of the clothes in the barrel. If the turning efficiency is lower than the preset turning efficiency, the control extends the time for driving the pulsator and the barrel to rotate forward and reverse.

[0594] The turning effect of the washing machine on clothes can be enhanced by extending the time for driving the pulsator and the barrel to rotate forward and reverse and increasing the maximum speed of the driver driving the pulsator and the barrel.

[0595] Tumbling efficiency can refer to the number of times clothes are tumbled within a certain period of time, or the time required for clothes to be tumbled once.

[0596] There are many ways to obtain the flipping efficiency. For example, a camera can be installed inside the washing machine (such as the upper cover of the washing machine) to record the clothes in the barrel. By analyzing the image, the flipping efficiency can be calculated. For example, by judging the time required for the same clothes to be flipped to the top twice in a row, it can be determined that it takes the washing machine to complete a flip of the clothes. Alternatively, the collected images can be compared at intervals of a certain period of time (for example, 120 seconds), and the flipping efficiency can be calculated based on the state of the clothes.

[0597] In this embodiment, when it is detected that the turning effect of the clothes in the drum is poor, the turning effect of the clothes is enhanced by controlling the maximum speed of the driver driving the pulsator and the drum, and controlling the extension of the time for driving the pulsator and the drum to rotate forward and reverse. By continuously monitoring the turning effect, the turning intensity of the clothes can be adjusted in time to ensure a good turning effect.

[0598] The present invention also proposes a washing device controlled by the washing device control method of the present invention. The washing device refers to a device for washing clothes, such as a washing machine, and in the present invention mainly refers to a pulsator washing machine.

[0599] The washing device comprises a barrel body for accommodating clothes and a pulsator located at the bottom of the barrel body. The pulsator can rotate independently or synchronously with the barrel body.

[0600] When the pulsator is rotating forward, it can directly switch to reverse rotation without stopping, and it can also directly switch to forward rotation when it is rotating reversely.

[0601] The washing machine also includes a weight collection device, which can be a weight sensor for weighing the weight of the clothes in the barrel, or a water level sensor for obtaining the water level in the barrel, and then using the water level to represent the total amount of clothes and water.

[0602] The washing device also includes a zero-stop water flow achieved by adjusting the rotation-stop ratio of the impeller, and the zero-stop water flow can make the clothes turn upside down in the barrel.

[0603] In the present invention, when washing clothes, the washing device can control the intensity of the zero-stop water flow according to the weight of the clothes in the barrel. When the weight of the clothes in the barrel is large, the intensity of the zero-stop water flow is increased to achieve sufficient turning of the clothes, thereby obtaining a better washing effect.

[0604] Furthermore, the weight of the clothes in the barrel generally refers to the weight of the objects contained in the barrel, and can refer to the weight of the clothes alone or the total weight of the clothes and water. When the weight of the clothes in the barrel refers to the total weight of the clothes and water, the total weight of the clothes and water can be represented by the water level in the barrel.

[0605] As an embodiment of the present invention, the washing equipment also includes an image acquisition device, which can be a camera. The camera is arranged on the inner side of the upper cover of the washing equipment. If the barrel body has a separate barrel cover, the camera is installed on the inner side of the barrel cover to obtain images inside the barrel body from top to bottom.

[0606] In this embodiment, the washing device can continuously monitor the flipping of clothes during the washing process. When the flipping efficiency is low, the flipping intensity is controlled to increase so that all clothes are fully soaked and a better washing effect is obtained; when the flipping efficiency is high, the flipping intensity is controlled to decrease so that the clothes will not flip too quickly and the washing is even.

[0607] As one embodiment of the present invention, the washing machine includes a barrel for accommodating laundry, a pulsator located at the bottom of the barrel, and a motor for powering the pulsator and the barrel. The washing machine also includes a housing, the barrel being disposed within the housing, and an upper cover disposed on the upper portion of the housing, the upper cover being opposite to a barrel opening of the barrel.

[0608] The washing equipment also includes a driving program for driving the pulsator and the barrel body to rotate forward and reverse, and also includes a braking program for reducing the rotation speed of the pulsator and the barrel body.

[0609] The washing device further comprises a speed sensor for detecting the rotation speed of the pulsator and the barrel, and a weight sensor for detecting the weight of the clothes in the barrel.

[0610] An image acquisition device, such as a camera, is provided on the upper cover of the washing device for acquiring images of the clothes turning over in the barrel and for analyzing the turning efficiency of the clothes.

[0611] In the present invention, after the driver stops driving the impeller and the barrel, before the driver applies a drive in the opposite direction of their current rotation to the impeller and the barrel, it first opens and closes the drive in the opposite direction of the current rotation of the impeller and the barrel at least once, reduces the rotation speed of the impeller and the barrel, and reduces the rotation speed of the impeller and the barrel to a speed at which the drive in the opposite direction of their current rotation can be turned on in the shortest time, without waiting for the impeller and the barrel to naturally slow down, thereby speeding up the reversing rhythm of the impeller and the barrel and enhancing the flipping effect on the clothes.

[0612] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A control method for a washing device, characterized in that: During the water intake process, the barrel body and / or impeller of the washing equipment can be controlled to rotate unidirectionally, the load weight in the barrel body can be obtained, the rotation speed corresponding to the obtained load weight can be selected, and the barrel body and / or impeller can be controlled to rotate unidirectionally at the selected rotation speed.

2. A control method for a washing device according to claim 1, characterized in that: Selecting the rotation speed corresponding to the acquired load weight includes: acquiring a pre-water level V0 corresponding to the load weight, and using the rotation speed corresponding to the acquired pre-water level V0 as the selected rotation speed; Preferably, the pre-water level V0 is positively correlated with the load weight; Preferably, the rotation speed is negatively correlated with the pre-inlet water level V0.

3. A control method for a washing device according to claim 2, characterized in that: Preset water level for essence wash V 01 , and V 01 <V0, during the water inlet process, obtain the water level V in the barrel, and compare the obtained water level V with the essence wash water level V 01 If V≤V 01 , then the barrel body and / or the impeller are controlled to rotate in one direction.

4. A control method for a washing device according to claim 3, characterized in that: During the water inlet process, the speed of controlling the unidirectional rotation decreases as the water level increases.

5. A control method for a washing device according to claim 3 or 4, characterized in that: If the water level V in the barrel is greater than the essence wash water level V 01 , the impeller is controlled to execute the forward rotation-pause-reverse timing according to the set cycle, and the forward and reverse rotation speeds of the impeller are higher than the unidirectional rotation speed.

6. A control method for a washing device according to claim 5, characterized in that: The timing sequence of controlling the impeller to execute forward rotation-pause-reverse rotation includes: during the water inlet process, the forward and reverse rotation speeds of the impeller are controlled to increase as the water level increases.

7. A control method for a washing device according to claim 5, characterized in that: Controlling the impeller to execute the forward rotation-pause-reverse timing includes: during the water inlet process, the rotation time within the set cycle increases with the increase of the water level.

8. A control method for a washing device according to claim 5, characterized in that: Preset water level V 02 , and V 01 <V 02 <V0, control the impeller to execute the forward rotation-pause-reverse timing sequence including: during the water inlet process, obtain the water level V in the barrel, compare the obtained water level V with the preset water level V 02 If V ≥ V 02 , the pause time within the set period of control decreases as the inlet water level increases.

9. A method for controlling a washing device according to claim 1, 2, 3, 4, 6, 7 or 8, characterized in that: The water absorption of the load in the washing device is obtained, and the speed of the unidirectional rotation is controlled to be positively correlated with the obtained water absorption; Preferably, obtaining the water absorbency of the load in the washing device includes: obtaining the material of the load, and selecting the water absorbency corresponding to the material as the obtained water absorbency.

10. A control method for a washing device, the washing device comprising a barrel for accommodating clothes and a pulsator rotatably arranged in the barrel, the barrel and / or the pulsator can rotate and stop alternately to form a washing water flow, Features: The impeller and / or the barrel body performs continuous positive and negative alternating motions to form an upside-down zero-stop water flow, and after the zero-stop water flow is formed, the washing water flow is controlled to form the washing water flow for washing clothes.

11. A control method for a washing device according to claim 10, characterized in that: The washing water flow includes a first washing water flow formed by controlling the barrel and / or the impeller to move according to a first turn-stop ratio Q1, and a second washing water flow formed by moving according to a second turn-stop ratio Q2, and Q1>Q2. After the zero-stop water flow is formed, the first washing water flow is controlled to be formed first, and then the second washing water flow is formed.

12. A control method for a washing device according to claim 10 or 11, characterized in that: Preset the zero-stop water flow intensity and washing water flow intensity corresponding to different clothing information, obtain the clothing information in the barrel, and control the selection of the zero-stop water flow intensity and washing water flow intensity corresponding to the obtained clothing information for washing.

13. A control method for a washing device according to claim 12, characterized in that: The zero-stop water flow intensity includes the rotation speed and rotation time of the impeller and / or the barrel, and the washing water flow intensity includes the rotation speed and the rotation-stop ratio of the impeller and / or the barrel.

14. A control method for a washing device according to claim 12, characterized in that: The clothing information includes the degree of dirtiness of the clothing, the degree of dirtiness of the clothing in the barrel is obtained, and the intensity of the zero-stop water flow and / or the intensity of the washing water flow is controlled to be positively correlated with the obtained degree of dirtiness of the clothing; Preferably, the rotation speed and / or rotation duration of the impeller and / or the barrel in the zero-stop water flow is controlled to be positively correlated with the obtained degree of dirtiness of the clothes; Preferably, the rotation speed and / or the rotation-stop ratio of the impeller and / or the barrel in the washing water flow is controlled to be positively correlated with the obtained degree of dirtiness of the clothes.

15. The control method of a washing device according to claim 12, characterized in that: The clothing information includes the wear resistance of the clothing material. The wear resistance of the clothing material in the barrel is obtained, and the zero-stop water flow intensity and / or the washing water flow intensity are controlled to be positively correlated with the obtained wear resistance.

16. The control method of a washing device according to claim 12, characterized in that: The clothing information includes the type of clothing, preset easily deformed clothing types, obtaining the type of clothing in the barrel, and determining whether the obtained clothing type belongs to the easily deformed clothing type. If so, controlling the reduction of the zero-stop water flow intensity and / or the washing water flow intensity.

17. A control method for a washing device according to any one of claims 13 to 16, characterized in that: The water inlet level in the barrel is obtained, and the zero-water stop flow intensity and / or the washing water flow intensity are controlled to increase as the obtained water inlet level increases.

18. A control method for a washing device according to claim 17, characterized in that: Controlling the increase of the zero-stop water flow intensity and / or the wash water flow intensity to increase with the increase of the acquired water inlet level; Preferably, the water inlet level V0 is preset, and the increase amplitude when the water inlet level is lower than the preset water inlet level V0 is controlled to be smaller than the increase amplitude when the water inlet level is higher than the preset water inlet level V0.

19. A control method for a washing device, the washing device comprising a barrel and a pulsator, and a driving device for driving the pulsator and the barrel to rotate forward and reverse, characterized in that: After the forward rotation driving of the driver stops and before the forward rotation of the impeller and / or the barrel stops, the driver is controlled to perform at least one reverse rotation driving.

20. A control method for a washing device according to claim 19, characterized in that: Before the forward rotation of the impeller and / or the barrel stops, at least the first and second reverse driving are performed in sequence.

21. A control method for a washing device according to claim 20, characterized in that: Preset pulsator speed N 0波 After the first reverse drive is completed, the control obtains the impeller speed N 波 , compare the obtained impeller speed N 波 With the preset speed N 0波 The size of N 波 ≤N 0波 , the control driver starts the second reverse drive. The first reverse drive is used to accelerate the forward stop, and the second reverse drive is used to stop the forward rotation and directly switch to reverse.

22. A control method for a washing device according to claim 21, characterized in that: Preset pulsator speed N N波 , N N波 >N 0波 , get the impeller speed N after the first reverse drive ends 波 , compare the obtained speed N 波 With the preset speed N N波 The size of N 波 ≥N N波 , the control adds at least one reverse drive before the second reverse drive.

23. A control method for a washing device according to any one of claims 20-22, characterized in that: Preset barrel speed N 0桶 After the first reverse drive is completed, the barrel speed N is obtained by control. 桶 , compare the obtained barrel speed N 桶 With the preset speed N 0桶 The size of N 桶 ≤N 0桶 , then the control driver starts the second reverse drive.

24. A control method for a washing device according to claim 23, characterized in that: Preset barrel speed N N桶 , N N桶 >N 0桶 , get the barrel speed N after the first reverse drive ends 桶 , compare the obtained speed N 桶 With the preset speed N N桶 The size of N 桶 ≥N N桶 , the control adds at least one reverse drive before the second reverse drive.

25. A control method for a washing device according to claim 20, 21, 22 or 24, characterized in that: The washing equipment also includes a motor that provides power to the impeller and the barrel, and the motor speed N is preset. 0机 After the first reverse drive is completed, the motor speed N is obtained by control 机 , compare the obtained motor speed N 机 With the preset speed N 0机 The size of N 机 ≤N 0机 , then the control driver starts the second reverse drive.

26. A control method for a washing device according to claim 25, characterized in that: Preset motor speed N N机 , N N机 >N 0机 , get the motor speed N after the first reverse drive ends 机 , compare the obtained speed N 机 With the preset speed N N机 The size of If N 机 ≥N N机 , the control adds at least one reverse drive before the second reverse drive.

27. A method for controlling a washing device according to claim 19 or 20 or 21 or 22 or 24 or 26, characterized in that: Before the forward rotation of the impeller and / or the barrel stops, at least the first and second reverse driving are performed in sequence. After the barrel and / or pulsator stops rotating, M Stop when the time is T0, preset time T0<T M , start timing after the forward drive stops, obtain the timing time T, compare the obtained timing time T with the preset time T0, if T≥T0, control the driver program to start the first reverse drive.

28. A control method for a washing device according to claim 27, characterized in that: The rotation speed of the impeller and / or the barrel body when the forward driving is finished is controlled, and the preset time T0 is controlled to be positively correlated with the obtained rotation speed of the impeller and / or the barrel body.

29. A control method for a washing device according to claim 27, characterized in that: The weight of the clothes in the barrel is obtained by controlling the preset time T0 to be positively correlated with the obtained weight of the clothes in the barrel.

30. A method for controlling a washing device according to claim 19 or 20 or 21 or 22 or 24 or 26 or 28 or 29, characterized in that: The washing device also includes a braking program for reducing the rotation speed of the barrel and the pulsator. Before the driving program is controlled to execute reverse driving, the braking program is controlled to be started at least once.

31. A control method for a washing device, the washing device comprising a barrel and a pulsator, characterized in that: The washing device includes a zero-stop water flow formed by the forward and reverse zero-stop switching of the impeller and / or the barrel body, which is used to turn the clothes upside down in the barrel body, controls the acquisition of information about the clothes in the barrel body, and controls the selection of the zero-stop water flow intensity corresponding to the acquired clothing information.

32. A control method for a washing device according to claim 31, characterized in that: The information of the clothes includes the weight of the clothes, and the intensity of controlling the zero-stop water flow is positively correlated with the weight of the clothes.

33. A control method for a washing device according to claim 31 or 32, characterized in that: Improving the zero-stop water flow intensity includes: controlling and extending the time of the barrel and / or the impeller in forward and reverse rotation; And / or, control and increase the rotation speed of the barrel and / or the impeller.

34. A control method for a washing device according to claim 31 or 32, characterized in that: A first turning efficiency P1 is preset, and the turning efficiency P of the clothes in the barrel is controlled to be obtained. The obtained turning efficiency P is compared with the preset first turning efficiency P1. If P≤P1, the intensity of the zero-stop water flow is controlled to increase and / or the duration of the zero-stop water flow is increased.

35. A control method for a washing device according to claim 34, characterized in that: A second turning efficiency P2 is preset, P2>P1, and the turning efficiency P of the clothes in the barrel is controlled to be obtained, and the obtained turning efficiency P is compared with the preset second turning efficiency P2. If P≥P2, the intensity of the zero-stop water flow is controlled to be reduced and / or the duration of the zero-stop water flow is reduced.

36. A control method for a washing device according to claim 34, characterized in that: Before increasing the intensity of the zero-stop water flow and / or increasing the duration of the zero-stop water flow, a set amount of water is added to the barrel body.

37. A control method for a washing device according to claim 34, characterized in that: After increasing the intensity of the zero-stop water flow and / or increasing the time of the zero-stop water flow, the control obtains the turning efficiency P of the clothes, compares the obtained turning efficiency P with the preset first turning efficiency P1, and if P≤P1, the control sends information to the user to query whether the clothes are the same color. If the clothes are not the same color, the control sends a prompt message to the user to remind the user that the clothes are overweight.

38. A control method for a washing device according to claim 34, characterized in that: The method of obtaining the turning efficiency of the clothes in the barrel comprises: controlling to obtain at least two images of the clothes in the barrel, analyzing the color and / or position changes of the clothes in the images, and obtaining the turning efficiency P of the clothes; Preferably, the images of the clothes in the barrel are controlled to be acquired at least twice, the area and / or position changes of different colors in the images are analyzed, and the turning efficiency P of the clothes is obtained by combining the interval time between the two acquired images; Preferably, the images of the clothes in the barrel are controlled to be acquired at least twice, the position changes of different clothes in the images are analyzed, and the turning efficiency P of the clothes is obtained in combination with the interval time between the two acquired images.

39. A control method for a washing device according to claim 31 or 32, characterized in that: Preset the wear resistance R0, control the acquisition of clothing material, select the wear resistance R corresponding to the clothing material, compare the acquired wear resistance R with the preset wear resistance R0, if R≤R0, control to extend the forward and reverse rotation time of the barrel and / or the impeller.

40. A washing device, characterized in that: The control method described in any one of claims 1 to 39 is used for control.

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