Control method of washing equipment and washing equipment

Abstract

The invention discloses a washing equipment control method and washing equipment, the washing equipment comprises a barrel body, an impeller and a driving program used for driving the impeller and the barrel body to rotate forwards and backwards, and after forward rotation driving of the driving program is stopped and before forward rotation of the impeller and / or the barrel body is stopped, the driving program is controlled to execute backward rotation driving at least once. According to the invention, after the forward driving is stopped, the inertial rotation speed of the impeller and the barrel body is gradually reduced, and the driving capability of the impeller and the barrel body to the clothes is reduced until the impeller and the barrel body stop rotating, the reverse driving is executed when the impeller and the barrel body still keep forward rotation due to inertia after the forward driving is stopped; according to the washing machine, the rotating direction of the impeller and the barrel body can be rapidly changed under the condition that the impeller and the barrel body are not stopped, the high driving capacity to clothes is always kept, the clothes are turned over up and down in the barrel body, the clothes are soaked more evenly, and the washing effect is improved.

Description

Technical Field

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

[0002] Washing equipment refers to equipment for washing clothes, such as a washing machine, and in the present invention mainly refers to a pulsator washing machine.

[0003] When washing, the washing equipment needs to alternate between positive and reverse water flow to make the clothes flip in the vertical direction, so that the clothes are completely wet and soaked, and the process of soaking and losing water is continuously cycled during the upside down process to simulate the process of clothes being repeatedly soaked in water, fished out, washed and soaked again during hand washing, so as to improve the washing effect.

[0004] However, in current washing equipment, during the alternating forward and reverse flow of water during washing, the impeller and / or the barrel pause for too long, resulting in the water flow stopping when the impeller and / or the barrel starts to rotate in the opposite direction, failing to effectively flip the clothes, thus affecting the final washing effect.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The present invention proposes a control method and a washing device, which aims to achieve no pause when the impeller and / or the barrel body switches the rotation direction during the washing process, thereby generating a zero-stop water flow with strong turning ability.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A control method for a washing device, the washing device comprising a barrel and an impeller, and a driving program for driving the impeller and the barrel in forward and reverse rotations. After the forward rotation driving of the driving program stops and before the forward rotation of the impeller and / or the barrel stops, the driving program is controlled to perform at least one reverse driving.

[0009] 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.

[0010] 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;

[0011] Furthermore, the preset impeller 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 , then the control adds at least one reverse drive before the second reverse drive;

[0012] 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;

[0013] Furthermore, the barrel speed N is preset 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 , then the control adds at least one reverse drive before the second reverse drive;

[0014] Furthermore, the washing device also includes a motor for providing 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.

[0015] 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 ends 机 , compare the obtained speed N 机 With the preset speed N N机 The size of N 机≥N N机 , the control adds at least one reverse drive before the second reverse drive.

[0016] Furthermore, before the forward rotation of the impeller and / or the barrel stops, at least the first and second reverse driving are performed in sequence.

[0017] 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.

[0018] Further, 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.

[0019] 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.

[0020] Furthermore, the washing device also includes a braking program for reducing the rotation speed of the barrel and the impeller, and before the control driving program executes the reverse drive, the braking program is controlled to be started at least once.

[0021] A washing device is controlled by any of the above-mentioned washing device control methods.

[0022] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0023] 1. 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.

[0024] 2. 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 closed 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.

[0025] 3. When the obtained speed of the impeller's forward inertia rotation reaches the preset speed, the driver is controlled to start the reverse drive, which can accurately control the timing of starting the reverse drive to 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.

[0026] 4. 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 impeller 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.

[0027] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0029] Figure 1 It is a flow chart of a washing equipment control method of the present invention;

[0030] Figure 2 is a flow chart of another washing equipment control method of the present invention;

[0031] Figure 3 is a flow chart of another washing equipment control method of the present invention;

[0032] Figure 4 is a flow chart of another washing equipment control method of the present invention;

[0033] Figure 5 It is a flow chart of another washing equipment control method of the present invention.

[0034] 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 are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] 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.

[0036] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present invention proposes a Figure 1-5 The control method of the washing device and the washing device shown, 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.

[0039] The washing device includes a barrel body for accommodating clothes and a pulsator located at the bottom of the barrel body. The washing device also includes a driving program for driving the pulsator and the barrel body to rotate forward and reversely. Specifically, the driving program can drive the pulsator forward and reversely alone, can drive the barrel body forward and reversely alone, and can also drive the pulsator and the barrel body forward and reversely at the same time. The rotation directions of the pulsator and the barrel body can be the same or opposite.

[0040] 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 have the same rotation direction.

[0041] The driver can drive the impeller and the barrel body to rotate forwardly, and can also change the driving direction to drive the impeller and the barrel body to rotate reversely.

[0042] The forward and reverse rotations mentioned above do not have fixed directions, and are only for the convenience of description. Forward rotation can refer to clockwise rotation or counterclockwise rotation; reverse rotation can refer to clockwise rotation or counterclockwise rotation. In order to enhance the turning effect of water flow on clothes during washing, the impeller and the barrel body do not pause when switching the rotation direction during washing. Figure 1 As shown, take the following approach:

[0043] S1: Start;

[0044] S2: Control the driver to drive the impeller and / or the barrel to rotate forward;

[0045] S3: Control the driver to stop forward drive;

[0046] S4: Determine whether the stop condition is met, if so, execute S9, otherwise execute S5;

[0047] S5: Before the impeller and / or the barrel stops rotating forward, the driver is controlled to start the reverse drive;

[0048] S6: Control the driver to stop reverse driving;

[0049] S7: Determine whether the stop condition is met, if so, execute S9, otherwise execute S8;

[0050] S8: Before the reverse drive of the impeller and / or the barrel stops, the control driver starts the forward drive and executes S3;

[0051] S9: End.

[0052] The driver program drives the impeller and / or the barrel body to rotate forwardly, which means that the driver program can drive the impeller to rotate forwardly alone, can drive the barrel body to rotate forwardly alone, or can drive the impeller and the barrel body to rotate forwardly at the same time.

[0053] 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.

[0054] The stop condition described in steps S4 and S7 may be reaching a preset time or reaching a preset number of forward or reverse driving times, which may be set according to actual needs.

[0055] In steps S5 and S6, the reverse drive is started at least once, wherein the last reverse drive needs to start before the impeller and the barrel stop their forward rotation by inertia and end after a certain reversal time. Except for the last reverse drive, all reverse drives are very short and are used to reduce the rotation speed of the impeller and the barrel.

[0056] 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, all forward drives are extremely short and are used to reduce the rotation speed of the impeller and the barrel.

[0057] 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, and will not experience 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.

[0058] Specifically, the impeller (or the impeller and the barrel together) rotates forward, driving the water flow to rotate forward. After the forward rotation drive is briefly turned off, the water flow continues to rotate forward under the action of its own inertia. The reverse drive is turned on before the inertia forward rotation stops, so that the impeller reverses rapidly, driving the forward rotating water flow to quickly change its rotation direction to reverse, thereby achieving the direct change of rotation direction of the water flow when rotating forward, without experiencing a stage of zero speed in the middle, thus achieving zero water flow stop.

[0059] 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.

[0060] When the driver starts the drive in the opposite direction to the current rotation direction of the barrel and the pulsator, the barrel and the 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 the pulsator to naturally decrease to the point where you can connect the drive in the opposite direction, it may take a long time, reducing the washing efficiency. To solve this problem, Figure 2 As shown, take the following approach:

[0061] The washing device includes first and second reverse drivings executed sequentially and first and second forward drivings executed sequentially.

[0062] Step S5 includes:

[0063] S51: Control to open and close the first reverse drive;

[0064] S52: before the impeller and / or the barrel stops rotating forward, the driver is controlled to start the second reverse drive;

[0065] Step S8 includes:

[0066] S81: Control to open and close the first forward drive;

[0067] S82: Before the reverse drive of the impeller and / or the barrel stops, the control driver starts the second forward drive and executes S3;

[0068] In order to prevent the first forward drive and the first reverse drive from directly slowing down the impeller and the barrel to stop rotating, 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 in a short interval to prevent the impeller and the barrel from stopping rotating before the second forward drive and the second reverse drive are turned on.

[0069] Before the control driver applies a drive in the opposite direction to the current rotation direction of the impeller and the barrel, the drive in the opposite direction to the current rotation direction 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 possible, thereby reducing the waiting time for the impeller and the barrel to reduce their rotation speed and improving washing efficiency.

[0070] 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 is reduced. However, because the impeller and the barrel have different maximum speeds under the driving of the driver and different loads on the barrel, their speeds after deceleration are different. Therefore, it is possible that the speed is still high after deceleration. To solve this problem, Figure 3 As shown, the following method is used:

[0071] S1: Start;

[0072] S2: Preset pulsator speed N 0波 ;

[0073] S3: Control the driver to drive the impeller and / or the barrel to rotate forward;

[0074] S4: Control the driver to stop forward drive;

[0075] S5: Determine whether the stop condition is met, if so, execute S10, otherwise execute S61;

[0076] S61: Control to open and close the first reverse drive;

[0077] S62: Control and obtain the impeller speed N 波 ;

[0078] 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;

[0079] S64: Control the driver to start the second reverse drive;

[0080] S7: Control the driver to stop reverse driving;

[0081] S8: Determine whether the stop condition is met, if so, execute S10, otherwise execute S91;

[0082] S91: Control opening and closing of the first forward drive;

[0083] S92: Control and obtain the impeller speed N 波 ;

[0084] 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;

[0085] S94: Control the driver to start the second forward drive and execute S4;

[0086] S10: End.

[0087] 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 impeller and the barrel.

[0088] The speed obtained in steps S62 and S92 may also be the speed N of the barrel. 0桶 Correspondingly, in step S2, the preset speed is the barrel speed N 0桶 .

[0089] 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 as needed.

[0090] The washing device also includes a motor that provides power to the impeller and the barrel.

[0091] The speed obtained in steps S62 and S92 may also be the speed N of the motor. 0机 Correspondingly, in step S2, the preset speed is the barrel speed N 0机 .

[0092] 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, controlling the driver to start a second forward drive or a second reverse drive in the opposite direction of the current rotation direction of the impeller can avoid the impeller and the barrel having too high a speed after deceleration, and the driving force applied by the driver and the inertial rotation impact of the impeller and the barrel being too severe, causing damage to the vibration setting of the washing equipment.

[0093] 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 due to inertial rotation, it may take a long time. To solve this problem, Figure 4 As shown, the following method is used:

[0094] S1: Start;

[0095] S2: Preset pulsator speed N 0波 、N N波 , N N波 >N 0波 ;

[0096] S3: Control the driver to drive the impeller and / or the barrel to rotate forward;

[0097] S4: Control the driver to stop forward drive;

[0098] S5: Determine whether the stop condition is met, if so, execute S10, otherwise execute S61;

[0099] S61: Control to open and close the first reverse drive;

[0100] S62: Control and obtain the impeller speed N 波 ;

[0101] 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;

[0102] S64: Control to turn on and off the second reverse drive, and execute S62;

[0103] 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;

[0104] S66: Control the driver to start the third reverse drive;

[0105] S7: Control the driver to stop the third reverse drive;

[0106] S8: Determine whether the stop condition is met, if so, execute S10, otherwise execute S91;

[0107] S91: Control opening and closing of the first forward drive;

[0108] S92: Control and obtain the impeller speed N 波 ;

[0109] S93: Compare the acquired rotation speed N 波 With the preset speed NN波 The size of N 波 ≥N N波 , then execute S94, otherwise execute S95;

[0110] S94: Control opening and closing of the second forward drive, and execute S92;

[0111] 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;

[0112] S96: Control the driver to start the third forward drive and execute S4;

[0113] S10: End.

[0114] 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 .

[0115] In steps S62 and S92, the motor speed N can also be obtained. 机 , correspondingly, the motor speed N needs to be preset in step S2 0机 、N N机 , and N N机 >N 0机 .

[0116] In this embodiment, after the first forward drive or the first reverse start, the impeller speed N 波 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.

[0117] As another embodiment of the present invention, after the driver stops forward driving or reverse driving, according to the above embodiment method, it is necessary to continuously monitor the impeller speed, and to set up a matching speed monitoring device, which is costly. In actual use, if the speed sensor is damaged or fails, it will directly affect the opening and closing of the driver. To solve this problem, Figure 5 As shown, the following method is used:

[0118] S1: Start;

[0119] S2: preset time T0;

[0120] S3: Control the driver to drive the impeller and / or the barrel to rotate forward;

[0121] S4: Control the driver to stop forward drive and start timing;

[0122] S5: Determine whether the stop condition is met, if so, execute S10, otherwise execute S61;

[0123] S61: Obtaining the timing time T;

[0124] S62: Compare the obtained timing time T with the preset time T0. If T≥T0, execute S63; otherwise, execute S61.

[0125] S63: Control to open and close the first reverse drive;

[0126] S64: Control to start the second reverse drive;

[0127] S7 controls the second reverse drive to be turned off and starts timing;

[0128] S8: Determine whether the stop condition is met, if so, execute S10, otherwise execute S91;

[0129] S91: Obtaining the timing time T;

[0130] S92: Compare the acquired timing time T with the preset time T0. If T≥T0, execute S93; otherwise, execute S91.

[0131] S93: Control to start the first forward drive and execute S4;

[0132] S10: End.

[0133] After the barrel and / or the impeller stops driving forward or reverse, M Stop inertial rotation at the preset time T0<T M .

[0134] The preset time T0 may be a value determined experimentally. At time T0 after the drive is completed, the impeller and the barrel body have not stopped rotating, and the rotation speed has been reduced to the point where the first reverse drive or the first forward drive can be applied.

[0135] 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.

[0136] As an implementation method of this embodiment, the rotation speeds of the impeller and the barrel are different, and after the driving stops, the time required for the rotation speed to be reduced to a level that can apply a drive in the opposite direction of the current rotation is different. To solve this problem, when the forward driving ends, the rotation speed of the impeller or the barrel can be controlled to be acquired, and then the preset time T0 can be controlled to be positively correlated with the acquired rotation speed of the impeller or the barrel.

[0137] There are many ways to obtain the rotation speed of the impeller and the barrel, which can be obtained through a sensor for monitoring the rotation speed of the impeller and the barrel, or by retrieving the data record of the driver program.

[0138] In this embodiment, the washing device adjusts the preset time T0 through the rotation speed of the impeller or the barrel, so as to more accurately control the start of the forward driving and reverse driving of the driving program.

[0139] As another implementation of this embodiment, the weight of the clothes in the barrel is different, and the size of their inertia is also different. The heavier the weight of the clothes in the barrel, the greater the inertia, and the slower the deceleration speed, while the lighter the weight of the clothes in the barrel, the smaller the inertia, and the faster the deceleration speed.

[0140] After the clothes are put in 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.

[0141] There are many ways to obtain the weight of the clothes in the barrel, such as installing a weight sensor, or driving the barrel to calculate the weight of the clothes in the barrel through data such as eccentricity, and the present invention does not limit this.

[0142] 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.

[0143] 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 that can control the driver to start the second driving in the opposite direction of the current rotation of the pulsator and the barrel under different weights of clothes in the barrel, the following method can be adopted:

[0144] After putting clothes in the barrel and before adding water, obtain the weight of the clothes in the barrel, and control the interval time of the first forward drive and the first reverse drive on and off, which is positively correlated with the mass of the clothes in the barrel. The interval time of 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.

[0145] 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 extended to enhance the deceleration effect. The larger rotational inertia of the barrel body is offset by the longer first forward drive and first reverse drive times, so that the rotation speed of the barrel body is quickly reduced to start the second forward drive and the second reverse drive 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 prevent the impeller and the barrel body from being directly decelerated to a stop.

[0146] 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 weights, the following method is adopted:

[0147] After putting clothes into the barrel and before filling water, the weight of the clothes in the barrel is obtained, and the maximum speed of the driver driving the impeller and the barrel is controlled to be positively correlated with the weight of the clothes in the barrel.

[0148] Increase the maximum speed of the driver, when the impeller and the barrel switch between forward and reverse rotation, the impact of zero-stop water flow reversal will be stronger, which can bring a stronger flipping effect to the clothes.

[0149] In this embodiment, when the weight of the clothes in the barrel is large, the maximum speed of the driver driving the pulsator and the barrel is increased to enhance the turning effect on the clothes in the barrel. When the weight of the clothes in the barrel is small, the maximum speed of the driver driving the pulsator and the barrel is reduced to weaken the turning effect on the clothes in the barrel and prevent excessive turning.

[0150] 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.

[0151] The duration of the forward and reverse rotation of the impeller and / or the barrel refers to the time that the impeller and the barrel last in a continuous forward drive and reverse drive, and does not refer to the overall washing duration.

[0152] When the barrel and the pulsator rotate, the speed of the washing water and clothes in the barrel always lags behind the pulsator and the barrel. Prolonging the duration of a continuous forward drive and reverse drive can effectively increase the speed of the washing water and clothes in the barrel, thereby enhancing the turning effect of the clothes.

[0153] In this embodiment, when the weight of the clothes in the barrel is heavy, the rotation time of the impeller and the barrel in a continuous forward drive and reverse drive is extended to enhance the flipping effect of the clothes; when the weight of the clothes in the barrel is heavy, the rotation time of the impeller and the barrel in a continuous forward drive and reverse drive is shortened to weaken the flipping effect on the clothes in the barrel and prevent excessive flipping.

[0154] The washing device also includes a brake program for reducing the rotation speed of the barrel body and the impeller. When the barrel body and the impeller are rotating, the brake program is turned on to quickly reduce the rotation speed of the barrel body and the impeller.

[0155] There are many ways to achieve braking, which can be to control the driving program 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 used for braking, or to use other existing technologies that can achieve braking of the impeller and the barrel.

[0156] 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;

[0157] 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.

[0158] When starting a 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 to avoid directly starting the drive in the opposite direction of the current rotation of the impeller and the barrel to cause vibration of the washing equipment.

[0159] As another embodiment of the present invention, the actual turning effect of the washing machine on the clothes is affected by many factors, such as the rotation speed of the impeller and the barrel, the weight and type of the clothes and the amount of washing water. Therefore, after using the control method in the above embodiment, it is still possible that a good turning effect cannot be achieved. In order to ensure the purpose of effectively turning the clothes, the following method is used:

[0160] 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;

[0161] 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 prolongs the time for driving the impeller and the barrel to rotate forward and reverse.

[0162] The turning effect of the washing machine on clothes can be enhanced by extending the time for driving the impeller and the barrel to rotate forward and reverse and increasing the maximum speed of the impeller and the barrel driven by the driver.

[0163] Tumbling efficiency can refer to the number of times the clothes are tumbled within a certain period of time, or the time required for the clothes to be tumbled once.

[0164] There are many ways to obtain the turning efficiency. For example, a camera is installed in the washing machine (such as the upper cover of the washing machine) to record the clothes in the barrel, and the turning efficiency is calculated by analyzing the image. For example, by judging the time required for the same clothing to be turned over twice in a row, the time required for the washing machine to complete one turning of the clothing can be determined. Alternatively, the collected images are compared at regular intervals (for example, 120 seconds) to calculate the turning efficiency based on the state of the clothing.

[0165] In this embodiment, when it is detected that the turning effect of the clothes in the barrel is not good, the turning effect of the clothes is enhanced by controlling to increase the maximum speed of the driver driving the pulsator and the barrel and controlling to extend the time of driving the pulsator and the barrel 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.

[0166] As another embodiment of the present invention, the washing device includes a zero-stop water flow. 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 be evenly contacted with the detergent in the water, thereby improving the washing effect.

[0167] 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.

[0168] The clothing information includes clothing information such as clothing weight and clothing material, and may also include information such as the position and movement status of the clothing in the barrel.

[0169] 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.

[0170] The weight of the clothes in the barrel generally refers to the weight of the clothes put into the barrel before the water enters the barrel. However, because the amount of water entering the barrel 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.

[0171] There are many ways to obtain the weight of the clothes in the barrel. The clothes can be weighed after being put in, or the water level in the barrel can be obtained after the water is filled in, and the water level can be used to represent the weight of the clothes.

[0172] 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.

[0173] In this embodiment, when the weight of the clothes in the barrel is heavy, the intensity of the zero-stop water flow is controlled to increase, which can enhance the flipping ability of the zero-stop water flow on 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 light, 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.

[0174] As another embodiment of the present invention, a method for achieving zero water flow stop is as follows: the impeller rotates alternately in forward and reverse directions, and when rotating alternately, the impeller does not pause, and directly switches to reverse rotation when rotating forward, and directly switches to forward rotation when rotating reversely.

[0175] When achieving zero water stop flow, 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 stop flow will be stronger than when only the impeller rotates alone.

[0176] In this embodiment, there is no pause when the impeller switches between forward and reverse rotation, so that when the impeller switches the rotation direction, the water flow can change the rotation direction more quickly, preventing the clothes from stopping moving when the water flow stagnates, thereby achieving the effect of continuously turning the clothes upside down.

[0177] 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, and the method of increasing the zero-stop water flow is:

[0178] After the impeller rotates forward for time T1, it switches to reverse without stopping. After the impeller rotates reversely for time T2, it switches to forward without stopping.

[0179] The times T1 and T2 may be the same or different;

[0180] Preferably, T1 and T2 are the same.

[0181] The intensity of the zero-stop water flow can be increased by controlling the extension of the time T1, T2, or controlling the increase of the speed of the impeller.

[0182] If the barrel body and the impeller move synchronously, the rotation time of the barrel body will be extended synchronously.

[0183] The time T1 and T2 can be extended, or the speed of the impeller can be increased, or the time T1 and T2 can be extended at the same time, and the speed of the impeller can be increased. The effect of enhancing the zero-stop water flow by extending the time T1 and T2 and increasing the speed of the impeller is stronger than that of only extending the time T1 and T2 or increasing the speed of the impeller.

[0184] 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 alternately. The longer the impeller rotates in the same direction, the greater the amplitude of the clothes flipping in the same direction.

[0185] The higher the speed of the impeller, the faster the movement speed of the zero-stop water flow, the faster the clothes are flipped, and in the same amount of time, the greater the flipping amplitude of the clothes.

[0186] In this embodiment, by controlling the extension time T1 and T2, the turning amplitude of the clothes in one turning can be increased, thereby enhancing the turning effect, or the rotation speed of the impeller can be increased to increase the turning speed of the clothes, thereby increasing the turning amplitude of the clothes in the same time, and finally enhancing the turning effect.

[0187] 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 of the clothes in the barrel and the material of the clothes, it is still impossible to guarantee that the final flipping result must meet the expectations. Therefore, it is necessary to monitor the actual flipping effect and adjust the zero-stop water flow according to the monitoring result. The control method used is as follows:

[0188] S1: Start;

[0189] S2: Preset the first reversal efficiency P1 and start the zero-stop water flow;

[0190] S3: Control and obtain the turning efficiency P of the clothes in the barrel;

[0191] S4: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S5; otherwise, execute S6.

[0192] S5: Control to increase the intensity of the zero-stop water flow and / or increase the reversal time, and execute S6;

[0193] S6: Maintain zero water flow interruption for a preset time;

[0194] S7: End.

[0195] The tumbling efficiency refers to the speed at which the clothes are tumbling in the barrel. The first tumbling efficiency P1 refers to the minimum tumbling efficiency at which the clothes can obtain the expected tumbling effect.

[0196] 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.

[0197] 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.

[0198] 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.

[0199] 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. At this time, if the turning is stopped and the clothes are washed, the washed part will be the same part, and the clothes cannot be washed evenly. To solve this problem, the following method is adopted:

[0200] S1: Start;

[0201] S2: Preset the first reversal efficiency P1 and start the zero-stop water flow;

[0202] S3: Control and obtain the turning efficiency P of the clothes in the barrel;

[0203] S4: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S5; otherwise, execute S6.

[0204] S5: Control to increase the intensity of the zero-stop water flow and / or increase the reversal time, and execute S9;

[0205] S6: Preset the second flipping efficiency P2, P2>P1;

[0206] S7: Compare the obtained flipping efficiency P with the preset second flipping efficiency P2. If P≥P2, execute S8; otherwise, execute S9;

[0207] S8: Control to reduce the intensity of the zero-water stop flow and / or reduce the reversal time, and execute S9;

[0208] S9: Maintain zero water outage for a preset time;

[0209] S10: End.

[0210] Among them, steps S6 to S9 can also be used alone without being combined with steps S2 to S5.

[0211] 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.

[0212] 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.

[0213] As another embodiment of the present invention, when the clothes are turned over, in addition to the turning time and the turning strength, the amount of water in the barrel also has a great influence on the turning efficiency. The clothes are turned over in the barrel mainly by the zero-stop water flow. Only when the water volume is sufficient, the zero-stop water flow can have enough turning force to turn over the clothes.

[0214] In addition, if the clothes want to be turned over, the water in the barrel needs to provide sufficient buoyancy and a certain lubrication. If the amount of water is too little, the friction between the clothes themselves and between the clothes and the barrel and the impeller will be large, making it difficult to turn the clothes over. In this case, if the intensity of the zero-stop water flow is increased or the turning time is increased, the wear of the clothes will be aggravated. To solve this problem, the following methods are used:

[0215] S1: Start;

[0216] S2: Preset the first reversal efficiency P1 and start the zero-stop water flow;

[0217] S3: Control and obtain the turning efficiency P of the clothes in the barrel;

[0218] S4: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S51; otherwise, execute S6.

[0219] S51: Control to add a set amount of washing water into the barrel, and execute S52;

[0220] S52: Control to increase the intensity of the zero-stop water flow and / or increase the reversal time, and execute S9;

[0221] S6: Preset the second flipping efficiency P2, P2>P1;

[0222] S7: Compare the obtained flipping efficiency P with the preset second flipping efficiency P2. If P≥P2, execute S8; otherwise, execute S9;

[0223] S8: Control to reduce the intensity of the zero-water stop flow and / or reduce the reversal time, and execute S9;

[0224] S9: Maintain zero water outage for a preset time;

[0225] S10: End.

[0226] 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 from 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.

[0227] In this embodiment, before increasing the intensity of the zero-stop water flow or increasing the turning time, water is added to the washing device. On the one hand, the turning force of the zero-stop water flow can be enhanced by increasing the amount of water, thereby strengthening the turning effect. On the other hand, greater buoyancy and lubrication can be provided to the clothes, thereby reducing the friction between the clothes and between the clothes and the barrel, making it easier for the clothes to turn over, thereby strengthening the turning effect.

[0228] As another embodiment of the present invention, after the adjustment, the turning effect of the zero-stop water flow on the clothes may still not meet the requirements. To deal with this situation, the following methods can be adopted:

[0229] S1: Start;

[0230] S2: Preset the first reversal efficiency P1 and start the zero-stop water flow;

[0231] S3: Control and obtain the turning efficiency P of the clothes in the barrel;

[0232] S4: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S51; otherwise, execute S6.

[0233] S51: Control to add a set amount of washing water into the barrel, and execute S52;

[0234] S52: Control to increase the intensity of the zero-stop water flow and / or increase the reversal time, and execute S53;

[0235] S53: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S54; otherwise, execute S9.

[0236] 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;

[0237] S55: controlling the position change of the clothes in the image to obtain the turning efficiency P of the clothes;

[0238] S56: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S57; otherwise, execute S9.

[0239] S57: Control sending a prompt message to the user to remind the user that the clothes are overweight, and execute S9.

[0240] S6: Preset the second flipping efficiency P2, P2>P1;

[0241] S7: Compare the obtained flipping efficiency P with the preset second flipping efficiency P2. If P≥P2, execute S8; otherwise, execute S9;

[0242] S8: Control to reduce the intensity of the zero-water stop flow and / or reduce the reversal time, and execute S9;

[0243] S9: Maintain zero water outage for a preset time;

[0244] S10: End.

[0245] 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 obtained flipping efficiency P.

[0246] There are many factors that may cause errors. For example, if the clothes washed this time are all the same color, it is impossible to effectively distinguish the clothes by their colors, and it is impossible to judge the movement and flipping of the clothes, and it is impossible to further analyze the flipping efficiency. In this case, no matter what the actual flipping efficiency is, the monitored flipping efficiency will be extremely low.

[0247] After increasing the intensity of the zero-water flow or increasing the flipping time, if the flipping efficiency still cannot meet expectations (ie, 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.

[0248] 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.

[0249] 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.

[0250] In step S57, after determining that the clothes are overweight, washing can continue according to the current zero water stop flow, or pause for a certain period of 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.

[0251] It is also possible that no prompt or inquiry information is sent 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.

[0252] There are many ways to send prompt information to the user, such as connecting the washing device to the Internet of Things, sending prompt information to a communication device connected to the washing device, 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 device itself (such as displaying EE on the digital tube).

[0253] In this embodiment, after increasing the turning intensity and turning time, if the turning efficiency still cannot reach the preset turning efficiency, it is necessary to determine whether the clothes are overweight or the clothes color problem causes the wrong turning efficiency. While asking the user about the clothes color and prompting the overweight, the washing is continued, which can not only give the user the opportunity to adjust the clothes weight and position in time, but also can prevent the washing process from being delayed when the user is too busy to take care of it.

[0254] As an implementation of this embodiment, the method for obtaining the turning efficiency of the clothes in the barrel in step S3 is as follows:

[0255] Step S3 includes:

[0256] S31: Control to obtain images of the clothes in the barrel at least twice;

[0257] S32: Analyze the color and / or position changes of the clothes in the image to obtain the turning efficiency of the clothes;

[0258] The clothing image acquired 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.

[0259] Analyzing the colors of clothes in the image in step S32 means that different clothes may have different colors. When clothes are washed, because they are soaked and stacked, using the colors of clothes to distinguish different clothes is a more effective method. For example, by comparing the shape, position, area and other information 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.

[0260] Analyzing the position of clothes in the image in step S32 refers to distinguishing different clothes through the shape of the clothes, local features of the clothes (such as the shape of the neckline), material, color and other information, and determining the position of the same clothes in different images, and then analyzing and calculating the movement and flipping distances, and then combining the interval time for obtaining the images to obtain the flipping efficiency of the clothes.

[0261] The flipping efficiency may 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.

[0262] Other methods for obtaining the flipping efficiency may also be used, and the present invention is not limited thereto.

[0263] 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.

[0264] As another implementation of this embodiment, the pulsator washing machine scrubs the clothes by friction between the clothes and the inner wall of the barrel to remove scale. However, for clothes such as silk and wool, we often hope to reduce wear as much as possible to extend the wearing life of such clothes. To solve this problem, the following methods can be adopted:

[0265] S1: Start;

[0266] S2: preset clothing wear resistance R0;

[0267] S3: Control to obtain clothing material;

[0268] S4: Select the wear resistance R corresponding to the material of the clothing;

[0269] 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.

[0270] S6: Control to extend the forward and reverse rotation time of the barrel and / or the impeller, and execute S7;

[0271] S7: start zero stop water flow;

[0272] S8: End.

[0273] 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.

[0274] 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, shortening their service life. Therefore, it is necessary to minimize the wear during the washing process.

[0275] The washing machine pre-stores the data of the corresponding relationship between the material and the wear resistance of the clothes. Before washing, the user inputs the material information of the clothes. An image acquisition device can also be set to obtain the image of the clothes in the barrel and analyze the material of the clothes. Then, the pre-stored data of the corresponding relationship between the material and the wear resistance of the clothes is retrieved to obtain the wear resistance of the clothes.

[0276] In this embodiment, when the pulsator rotates forward and reverse, the clothes will turn upside down in the barrel. Prolonging the forward and reverse rotation time can make the clothes turn more widely, so that the clothes present an "S"-shaped trajectory in the water, and the clothes are almost completely turned in the water for washing, and almost do not contact the inner wall of the barrel, thereby reducing the wear of the clothes, thereby reducing the wear of the clothes while enhancing the turning strength.

[0277] As an implementation of this embodiment, a specific method for controlling zero water flow stoppage of a washing device is proposed.

[0278] 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 to four gears from low to high: weak, medium, strong, and extremely strong. The gear of the zero-stop water flow is distinguished by the impeller speed and the single forward and reverse rotation time of the impeller.

[0279] 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 over in the water to reduce friction with the inner wall of the barrel.

[0280] For ordinary clothes other than wool, silk and other easily worn clothes, medium-grade washing is generally used, as follows:

[0281] S1: Start;

[0282] S2: preset the first flipping efficiency P1;

[0283] S3: Turn on the medium-speed turning over of clothes, and after the interval T1, control and obtain the turning efficiency P;

[0284] S4: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S5; otherwise, execute S15.

[0285] S5: Control the middle gear to be raised to the strong gear, and extend the reversal time T2, and execute S6;

[0286] S6: After the flipping time T1, the control obtains the flipping efficiency P;

[0287] S7: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S8; otherwise, execute S15.

[0288] S8: Control the medium gear to be raised to the extreme gear, and extend the reversal time T2, and execute S9;

[0289] S9: After the flipping time T1, the flipping efficiency P is obtained by control;

[0290] S10: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S11; otherwise, execute S15.

[0291] S11: Control the water level gear to rise one gear and continue to flip;

[0292] S12: After the flipping time T1, the flipping efficiency P is obtained by control;

[0293] S13: Compare the acquired flipping efficiency P with the preset first flipping efficiency P1. If P≤P1, execute S14; otherwise, execute S15.

[0294] S14: After washing is completed, abnormal washing information is pushed to the user, and S16 is executed;

[0295] S15: Maintain the current zero water flow until the reversal time ends;

[0296] S16: End.

[0297] Preferably, T1 = 2 minutes.

[0298] 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.

[0299] In this embodiment, during the flipping process, the flipping efficiency is continuously monitored and adjusted to ensure that the expected flipping effect is obtained.

[0300] The present invention also provides a washing device controlled by the washing device control method of the present invention. The washing device generally refers to a washing machine, especially a pulsator washing machine.

[0301] The washing device comprises a barrel for accommodating clothes and a pulsator at the bottom of the barrel, and also comprises a motor for providing power for the rotation of the pulsator and the barrel. The washing device also comprises a shell, the barrel is arranged in the shell, and an upper cover is arranged on the upper part of the shell, and the upper cover is opposite to the barrel opening of the barrel.

[0302] The washing device 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 rotating speed of the pulsator and the barrel body.

[0303] The washing device also includes a speed sensor for detecting the rotation speed of the impeller and the barrel, and a weight sensor for detecting the weight of the clothes in the barrel.

[0304] An image acquisition device, such as a camera, is arranged on the upper cover of the washing device for acquiring the turning image of the clothes in the barrel and for analyzing the turning efficiency of the clothes.

[0305] In the present invention, after the driver stops driving the impeller and the barrel body, before the driver applies a drive in the opposite direction of their current rotation to the impeller and the barrel body, the drive in the opposite direction of the current rotation of the impeller and the barrel body is first opened and closed at least once, thereby reducing the rotation speed of the impeller and the barrel body, so that the rotation speed of the impeller and the barrel body is reduced 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 body to naturally slow down, thereby speeding up the switching rhythm of the rotation of the impeller and the barrel body and enhancing the flipping effect on the clothes.

[0306] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. 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.

2. A control method for a washing device according to claim 1, 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.

3. A control method for a washing device according to claim 2, 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.

4. A control method for a washing device according to claim 3, 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.

5. A control method for a washing device according to any one of claims 2 to 4, 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.

6. A control method for a washing device according to claim 5, 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.

7. A control method for a washing device according to claim 2 or 3 or 4 or 6, 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.

8. A control method for a washing device according to claim 7, 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 N 机 ≥N N机 , the control adds at least one reverse drive before the second reverse drive.

9. A control method for a washing device according to claim 1 or 2 or 3 or 4 or 6 or 8, 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.

10. A control method for a washing device according to claim 9, 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.

11. A control method for a washing device according to claim 9, 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.

12. A control method for a washing device according to claim 1 or 2 or 3 or 4 or 6 or 8 or 10 or 11, 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.

13. A washing device, characterized in that: The washing equipment is controlled by the washing equipment control method described in any one of claims 1 to 12.

Images