CN109137399B - Drum washing machine and washing control method and device thereof - Google Patents

Abstract

The invention provides a drum washing machine and a washing control method, a washing control device, equipment and a storage medium thereof, wherein the method comprises the following steps: and controlling the drum washing machine to operate to a main washing stage according to a set washing program, and controlling the drum washing machine to alternately operate a first driving state and a second driving state in the operation process of the main washing stage. The method controls the stirrer and the inner drum to rotate alternately at the same speed and different speeds by alternately operating different driving states, thereby increasing the mechanical strength of washing, improving the washing effect of clothes and shortening the washing time.

Description

Drum washing machine and washing control method and device thereof

Technical Field

The invention relates to the technical field of electric appliances, in particular to a drum washing machine and a washing control method and device thereof.

Background

When the drum washing machine washes clothes, the rotation of the inner drum drives the clothes and water in the inner drum to rotate so as to wash the clothes, wherein the clothes are lifted and put down by a lifting device in the inner drum and are beaten by the inner circumferential surface of the inner drum. However, the washing mode is single, so that the washing effect is influenced. Accordingly, there is a need for improvement.

For this reason, a drum washing machine in which a pulsator is provided in an inner tub has been proposed in the related art. For example, wo2016019878 discloses a washing machine that is operable in a first drive mode in which a drum and a rotating body are rotated at different rotational speeds; the second driving mode is that the roller and the rotating body rotate integrally at the same rotating speed; and a control unit for controlling the operation of the drive unit. The control part can switch the driving mode in the washing process or the rinsing process, so that the driving unit can work in a two-axis driving mode or a one-axis driving mode.

However, the applicant has found that since this solution only has one driving mode in the main washing stage, there is room for improvement in shortening the washing time and increasing the washing ratio.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, a first object of the present invention is to provide a washing control method for a drum washing machine, which includes disposing a pulsator in an inner tub of the drum washing machine, controlling the drum washing machine to alternately operate a first driving state and a second driving state during a main washing stage, and alternately operating washing modes of different driving states so that the inner tub and the pulsator alternately rotate at the same speed and at different speeds, thereby increasing mechanical strength of washing, improving washing effect of laundry, and shortening washing time.

The second purpose of the invention is to provide a washing control device of a drum washing machine.

A third object of the present invention is to provide a drum washing machine.

In order to achieve the above object, a first embodiment of the present invention provides a washing control method for a drum washing machine, including the following steps:

controlling the drum washing machine to run to a main washing stage according to a set washing program;

and controlling the drum washing machine to alternately operate the first driving state and the second driving state during the operation process of the main washing stage.

The washing control method of the drum washing machine in the embodiment of the invention firstly controls the drum washing machine to operate to a main washing stage according to a set washing program, and then controls the drum washing machine to alternately operate a first driving state and a second driving state. In the method, in the operation process of a main washing stage, a drum washing machine is controlled to alternately execute a high-speed rotating drum washing mode and a beating washing mode, then the washing mode currently executed by the drum washing machine is identified, and finally the drum washing machine is controlled to switch the driving state according to the currently executed washing mode, wherein the driving state corresponding to the beating washing mode is the first driving state, and the driving state corresponding to the high-speed rotating drum washing mode is the second driving state. The driving states of the drum washing machine are switched according to the washing modes, and the stirrer and the inner drum rotate positively and negatively at different washing beats and washing rotating speeds under different driving states, so that the mechanical strength of washing is increased, the washing effect of clothes is improved, and the washing time is shortened.

The washing machine control method provided by the embodiment of the invention also has the following additional technical characteristics:

in one embodiment of the present invention, controlling the drum washing machine to switch the driving state according to the currently performed washing mode includes: acquiring a driving state corresponding to the currently executed washing mode; acquiring a previous washing mode which is executed before the drum washing machine and is adjacent to the currently executed washing mode, and a driving state corresponding to the previous washing mode; and if the driving state corresponding to the previous washing mode is different from the driving state corresponding to the currently executed washing mode, controlling the drum washing machine to be switched from the driving state corresponding to the previous washing mode to the driving state corresponding to the currently executed washing mode.

In one embodiment of the present invention, the washing control method of the drum washing machine further includes: when the currently executed washing mode is the high-speed rotary-tub washing mode and the previous washing mode is the beating washing mode, controlling the drum washing machine to be switched from the first driving state to the second driving state; and when the currently executed washing mode is the beating washing mode and the previous washing mode is the high-speed rotary-tub washing mode, controlling the drum washing machine to be switched from the second driving state to the first driving state.

In one embodiment of the present invention, the washing control method of the drum washing machine further includes: and controlling the stirrer to spray water into the inner barrel when the beating washing mode is executed.

In one embodiment of the present invention, the washing control method of the drum washing machine further includes: and controlling the rotation speed of the inner barrel to be at least greater than or equal to the critical rotation speed R of the inner barrel when the high-speed rotary barrel washing mode is executed.

In an embodiment of the present invention, before controlling the drum washing machine to operate to the main washing stage, the method further includes: controlling the drum washing machine to carry out load weighing and water inlet; and controlling the drum washing machine to carry out load weighing under the first driving state and/or the second driving state in the load weighing process.

In one embodiment of the present invention, after the water is fed, the method further comprises: and controlling the drum washing machine to perform pre-washing in the first driving state.

In one embodiment of the present invention, after the pre-washing, the method further comprises: controlling the drum washing machine to carry out water replenishing washing according to the set water replenishing level; controlling the drum washing machine to operate in the first driving state in the water replenishing washing stage

In an embodiment of the present invention, the washing control method of the drum washing machine further includes: after the operation of the main washing stage is finished, controlling the drum washing machine to enter a rinsing stage; and controlling the drum washing machine to carry out rinsing in a first driving state and/or a second driving state during the rinsing stage operation process.

In an embodiment of the present invention, the washing control method of the drum washing machine further includes: after the operation of the rinsing stage is finished, controlling the drum washing machine to enter a shaking-out stage; and when the shaking stage runs for a preset time length, controlling the drum washing machine to switch to the first driving state to run for the preset time length.

In an embodiment of the present invention, the washing control method of the drum washing machine further includes: after the operation of the shaking stage is finished, controlling the drum washing machine to enter a drying stage; and controlling the drum washing machine to dry in the first driving state and/or the second driving state during the drying stage operation process.

In one embodiment of the present invention, the washing control method of the drum washing machine further includes: and controlling the stirrer to spray water into the inner barrel when the high-speed rotary barrel washing mode is executed.

In one embodiment of the present invention, the washing control method of the drum washing machine further includes: before the high-speed rotary drum washing mode is executed, controlling the drum washing machine to judge whether the drum washing machine operates stably according to a dynamic eccentricity sensing method, and if the drum washing machine does not operate stably, controlling to reduce the rotating speed of the drum washing machine so as to enable the drum washing machine to return to the stable state.

In an embodiment of the present invention, before performing the driving state switching, the method further includes: the method comprises the steps of obtaining a first target state of a brake, judging whether the first target state of the brake is matched with a driving state corresponding to the currently executed washing mode, and controlling the brake to be switched from the first target state to a second target state matched with the driving state corresponding to the currently executed washing mode if the first target state is not matched with the driving state corresponding to the currently executed washing mode.

In one embodiment of the present invention, the washing control method of the drum washing machine further includes: and when the inner cylinder and the stirrer rotate at different speeds, controlling the rotating speed of the stirrer to be smaller than that of the inner cylinder.

In one embodiment of the present invention, the washing control method of the drum washing machine further includes: and when the inner cylinder and the stirrer rotate at different speeds, controlling the stirrer to rotate in different directions relative to the inner cylinder.

In one embodiment of the present invention, the washing control method of the drum washing machine further includes: and controlling the stirrer to rotate in the same direction relative to the inner barrel when the inner barrel and the stirrer rotate at the same speed.

In order to achieve the above object, a second embodiment of the present invention provides a washing control device for a drum washing machine, including:

the control module is used for controlling the drum washing machine to operate to a main washing stage according to a set washing program, and controlling the drum washing machine to alternately execute a high-speed rotary barrel washing mode and a beating washing mode in the operation process of the main washing stage;

the identification module is used for identifying a washing mode currently executed by the drum washing machine;

the state switching module is used for controlling the drum washing machine to switch the driving state according to the currently executed washing mode; the driving state corresponding to the beating washing mode is the first driving state, and the driving state corresponding to the high-speed rotating barrel washing mode is the second driving state.

The control device of the washing machine of the embodiment of the invention firstly controls the drum washing machine to operate to the main washing stage according to the set washing program, controls the drum washing machine to alternately execute the high-speed barrel rotating washing mode and the beating washing mode in the operation process of the main washing stage, then identifies the currently executed washing mode of the drum washing machine, and finally controls the drum washing machine to switch the driving state according to the currently executed washing mode. The device switches the driving state of the drum washing machine according to the washing mode, and the inner drum and the stirrer rotate at the same speed and different speeds under different driving states, so that the mechanical strength of washing is increased, the washing effect of clothes is improved, and the washing time is shortened.

In order to achieve the above object, a third aspect of the present invention provides a drum washing machine, which includes an outer tub, an inner tub, and a pulsator, and a washing control device of the drum washing machine as described in the above embodiments. Wherein, the inner cylinder is rotatably arranged in the outer cylinder; the stirrer is rotatably arranged in the inner cylinder; the drum washing machine comprises a first driving state and a second driving state; wherein the inner cylinder and the agitator rotate at different speeds from each other when in the first driving state; the inner drum and the agitator rotate at the same speed when in the second driving state.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a drum washing machine according to an embodiment of the present invention;

fig. 2 is a sectional view of a drum washing machine according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a washing control method of a drum washing machine according to an embodiment of the present invention;

FIG. 4 is a flow chart of a washing process according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a washing control device of a drum washing machine according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a drum washing machine according to an embodiment of the present invention; and

fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The drum washing machine and the washing control method, apparatus and device thereof according to the embodiments of the present invention will be described with reference to the accompanying drawings.

The washing control method for washing the drum washing machine provided by the embodiment of the invention can be executed by the washing control device for washing the drum washing machine provided by the embodiment of the invention, and the device can be configured in the drum washing machine and used for realizing the control of the drum washing machine.

As shown in fig. 1, the drum washing machine according to the embodiment of the present invention includes an outer tub 10, an inner tub 20, a pulsator 30, and a driver 40. The inner barrel 20 is rotatably arranged in the outer barrel 10, the stirrer 30 is rotatably arranged in the inner barrel 20, the driver 40 is in transmission connection with the inner barrel 20 through the main shaft 41, and the main shaft 41 transmits the torque of the driver to the inner barrel 20 and/or the stirrer 30.

In order to more clearly illustrate the structure of the drum washing machine according to the embodiment of the present invention, a sectional view of the drum washing machine is further provided according to the embodiment of the present invention, as shown in fig. 2, the drum washing machine further includes a water passing shaft 42, a pipeline 43, a planetary gear assembly 6 and a brake 7. The water passing shaft 42 is rotatably arranged in the main shaft 41, the brake 7 controls the rotation of the water passing shaft 42, the planetary gear assembly 6 is respectively in transmission connection with the main shaft 41 and the stirrer 30, when the driver 40 drives the main shaft 41 to rotate, the main shaft 41 drives the inner barrel 20 to rotate, the planetary gear assembly 6 transmits the torque of the main shaft 41 to the stirrer 30, and drives the inner barrel 20 and the stirrer 30 to rotate at the same speed or different speeds, so that different driving states of the drum washing machine are formed.

Wherein, the drum washing machine includes a first driving state and a second driving state, and when the drum washing machine is in the first driving state, the inner tub 20 and the pulsator 30 rotate at different speeds from each other. When the drum washing machine is in the second driving state, the pulsator 30 rotates at the same speed as the drum 20.

It should be noted that, in the first driving state, in order to improve the mechanical force for rubbing the laundry to improve the washing effect, in each washing stage of the washing program, when the pulsator and the inner tub rotate at different speeds, the washing control device of the drum washing machine may control the pulsator to rotate in a reverse direction with respect to the inner tub, and at the same time, in order to avoid the laundry being worn due to an excessively high rotation speed of the pulsator, the washing control device of the drum washing machine may control the rotation speed of the pulsator to be less than the rotation speed of the inner tub. And in the second driving state, when the stirrer and the inner cylinder rotate at the same speed, the stirrer is controlled to rotate in the same direction relative to the inner cylinder.

Fig. 3 is a flowchart illustrating a washing control method of a drum washing machine according to an embodiment of the present invention. As shown in fig. 3, the method comprises the steps of:

step 101, controlling the drum washing machine to run to a main washing stage according to a set washing program.

The set washing program comprises all stages of washing clothes by the drum washing machine, after the clothes to be washed are placed in the drum washing machine by a user, power is supplied to the drum washing machine, the washing program is started, and all washing stages are executed by the drum washing machine according to a preset flow in the washing program.

And then, the drum washing machine is operated to a main washing stage according to a set washing program, wherein the main washing stage comprises a beating washing mode and a high-speed rotating tub washing mode, and the clothes are cleaned by operating the two washing modes in the main washing stage.

The tumbling washing mode is that when the inner drum and the stirrer of the drum washing machine operate at a preset washing beat and a washing rotating speed, the clothes rise to a certain high point along with the rotation of the inner drum and the stirrer and fall down to form a continuous tumbling washing mode, and meanwhile, under the tumbling washing mode, the washing water sprayed by the stirrer is sprayed on the clothes, so that the washing water is fully contacted with the clothes, the decontamination effect is improved, and the abrasion to the clothes is reduced.

Wherein, the washing beat is the rotation time and the stop time in a rotation cycle of the inner cylinder or the stirrer, and the ratio of the rotation time and the stop time in the washing beat is the rotation-stop ratio of the washing beat, for example, when the inner cylinder rotates for 10 seconds and stops for 5 seconds in a washing beat, the rotation-stop ratio of the washing beat is 2: 1; the washing rotation speed refers to the revolutions per minute (rpm) of the inner drum or the stirrer, and the inner drum and the stirrer operate at different washing beats and washing rotation speeds, so that the clothes in the inner drum are in different states such as beating and rotating, and the aim of washing the clothes with different mechanical strengths is fulfilled.

Specifically, when the drum washing machine performs a tumble washing mode, the drum and the pulsator of the drum washing machine are operated at a washing rotation speed (r) lower than a first preset rotation speed, and washing of a forward rotation period and a reverse rotation period may be performed at a certain beat.

As an example, the first preset rotation speed may be in a range of 50 rpm to 60rpm, after the first preset rotation speed is determined, the washing rotation speed r smaller than the first preset rotation speed is determined, and the beat of the drum washing machine in the forward cycle may be different from the beat of the reverse cycle, for example, the rotation-stop ratio of the beat of the forward cycle is less than or equal to 19:7, and the rotation-stop ratio of the beat of the reverse cycle is greater than or equal to 4:1, so as to form continuous or intermittent laundry beating, and simultaneously spray the washing water containing the detergent onto the laundry through the agitator, so that the laundry fully absorbs the detergent, and not only reduces the wear of the agitator on the laundry through the lubricating effect of the detergent, but also more fully utilizes the detergent, and improves the cleaning effect.

The high-speed rotating barrel washing mode is a washing mode that when the inner barrel of the drum washing machine rotates at least more than or equal to the critical rotating speed R, the clothes are tightly attached to the barrel wall of the inner barrel and rotate along with the inner barrel due to the centripetal force

It should be noted that the rotation speed R in the beating washing mode and the critical rotation speed R in the high-speed rotating drum washing mode can be determined according to the target load weight, and the critical rotation speed R refers to the critical point rotation speed which can achieve the effect that the clothes are tightly attached to the wall of the inner drum and rotate along with the inner drum, so the critical rotation speed R is greater than the rotation speed R in the beating washing mode. For example, in the spray washing mode, when the first preset rotation speed is determined to be 60rpm according to the target load weight, R may be less than or equal to 55rpm, and in the high-speed spin tub washing mode, the rotation speed of the inner tub may be greater than or equal to 200rpm, where 200rpm is a critical rotation speed R, and when the rotation speed of the inner tub reaches the critical rotation speed of 200rpm, the effect that the laundry is tightly attached to the wall of the inner tub and rotates along with the inner tub can be achieved.

Step 102, in the operation process of the main washing stage, controlling the drum washing machine to alternately operate the first driving state and the second driving state.

As a possible implementation manner, the washing control device of the drum washing machine may switch the driving state of the drum washing machine according to the washing mode of the drum washing machine.

In specific implementation, when the drum washing machine operates to the main washing stage, the washing control device of the drum washing machine firstly controls the drum washing machine to perform the main washing stage in a mode of alternate circulation of beating washing and high-speed rotating tub washing. As an example, the washing control device of the drum washing machine sets the operation duration of the two washing modes in advance, or the number of rotation turns of the inner drum in each washing mode, detects that the operation duration of the drum washing machine in the current washing mode reaches the preset duration through the timing device, or detects that the number of rotation turns of the inner drum in the current washing mode reaches the preset number through the sensor, and controls the drum washing machine to switch to another washing mode.

It should be noted that, when the drum washing machine performs high-speed drum washing, the inner drum rotation speed is high, which may cause the washing machine to shake, and in order to ensure the use safety of the washing machine, before the washing machine performs high-speed drum washing, the low-speed forward and reverse rotation eccentric sensing may be performed. Specifically, whether the drum washing machine operates stably is detected through the dynamic eccentric sensor, if the operation state of the drum washing machine is detected to be stable, high-speed rotating drum washing is executed, so that the phenomenon that the washing machine generates displacement in the high-speed rotating drum washing process is avoided, and if the operation state of the drum washing machine is detected to be unstable, the rotating speed of the drum washing machine is controlled to be reduced, so that the drum washing machine returns to be stable and then executes high-speed rotating drum washing, so that the phenomenon that the washing machine generates displacement in the high-speed rotating drum washing process is avoided.

Then, the washing control device of the drum washing machine recognizes a washing pattern currently performed by the drum washing machine.

Specifically, as a possible implementation manner, the washing control device of the drum washing machine may identify the washing mode currently performed by the drum washing machine by measuring the rotation speed of the inner drum. For example, a rotation speed sensor preset on a rotation shaft of an inner drum of the drum washing machine firstly measures the rotation speed of the inner drum of the drum washing machine in a current washing mode, and then sends a measurement result to a washing control device of the drum washing machine, and the washing control device of the drum washing machine compares the measurement result with a critical rotation speed R, if the measurement result is greater than or equal to the critical rotation speed R, it is determined that the washing mode currently executed by the drum washing machine is a high-speed drum-rotating washing mode, and if the measurement result is less than or equal to a first preset rotation speed R, it is determined that the washing mode currently executed by the drum washing machine is a beating washing mode.

And finally, controlling the drum washing machine to switch the driving state by the washing control device of the drum washing machine according to the currently executed washing mode, wherein the driving state corresponding to the beating washing mode is a first driving state, and the driving state corresponding to the high-speed rotating barrel washing mode is a second driving state.

Specifically, it is preset that in the beating washing mode, the inner drum and the agitator of the drum washing machine operate in a first driving state, that is, the inner drum operates at a preset washing beat and a preset rotation speed r, and the agitator reversely rotates at a corresponding washing beat and a rotation speed lower than r. Before the stirrer and the inner cylinder rotate, the stirrer is controlled to spray washing water containing a detergent onto the clothes through the water spraying holes, after the preset spraying time is reached, the inner cylinder and the stirrer are controlled to rotate in opposite directions respectively, and forward and reverse rotation alternate washing is carried out according to a preset period; in the high-speed rotary-tub washing mode, the inner tub and the pulsator of the drum washing machine are operated in a second driving state, that is, the inner tub and the pulsator are controlled to rotate in the same direction at a rotational speed greater than or equal to a critical rotational speed R.

Further, since the drum washing machine alternately performs the high-speed spin tub washing mode and the tumble washing mode in the main washing stage, the drum washing machine performs the switching of the driving state according to the currently performed washing mode.

As a possible implementation manner, after the washing control device of the drum washing machine recognizes the currently executed washing mode, obtaining the target driving state in the current washing mode through the mapping relation between the washing mode and the driving state, then inquiring the previous washing mode which is stored by the washing control device of the drum washing machine and is currently executed and adjacent to the currently executed washing mode and the driving state corresponding to the previous washing mode, and then compares the driving state corresponding to the previous washing mode with the target driving state corresponding to the currently performed washing mode, if the driving state corresponding to the previous washing mode is different from the driving state corresponding to the currently performed washing mode, the drum washing machine is controlled to switch from the driving state corresponding to the previous washing mode to the target driving state corresponding to the currently executed washing mode.

For example, if the currently executed washing mode is a high-speed tub-rotating washing mode and the previous washing mode is a beating washing mode, the drum washing machine is controlled to be switched from the first driving state to the second driving state; if the currently executed washing mode is a beating washing mode and the previous washing mode is a high-speed rotating barrel washing mode, controlling the drum washing machine to be switched from the second driving state to the first driving state; and if the current washing mode is the high-speed rotating barrel washing mode and the previous washing mode is the high-speed rotating barrel washing mode, controlling the drum washing machine to maintain the second driving state.

As another possible implementation manner, after identifying the currently executed washing mode, the washing control device of the drum washing machine obtains the target driving state in the current washing mode through the mapping relationship between the washing mode and the driving state, then obtains the driving state actually executed by the current drum washing machine through detecting the rotation directions of the inner drum and the agitator, and the like, and controls the drum washing machine to switch to the target driving state if the currently executed driving state is different from the target driving state.

Before the driving state is switched in the main washing stage, the position of the brake needs to be judged, and the state of the brake is adjusted according to the driving state which needs to be switched currently. Specifically, the washing control device of the drum washing machine acquires a first target state where the brake is currently located, determines whether the first target state of the brake matches a driving state corresponding to the currently executed washing pattern, and controls the brake to switch from the first target state to a second target state matching the driving state corresponding to the currently executed washing pattern if the first target state does not match the driving state corresponding to the currently executed washing pattern. For example, in the high-speed rotary-tub washing mode, it is detected that a first target state in which the brake is currently located is a clasped state, a second target state of the brake in the high-speed rotary-tub washing mode is a released state, and the first target state and the second target state of the brake are not matched, so that the brake is controlled to be switched from the clasped state to the released state.

It should be noted that, in the process of executing the washing program by the drum washing machine, if the drum washing machine is in the first driving state, the washing control device of the drum washing machine may further identify whether the agitator needs to be controlled to spray water into the inner tub according to the current washing stage of the drum washing machine, and if the drum washing machine is not in the water spraying prohibition stage, the agitator is controlled to spray water, so that the water is sprayed into the inner tub through the agitator in the first driving state, the laundry fully absorbs the washing water, the wear of the laundry when the agitator and the inner tub rotate in the reverse direction is reduced, and the washing effect of the laundry is improved.

Wherein, the water spraying forbidding stage may include a load weighing stage, a shaking stage and a drying stage, it can be understood that when the drum washing machine is in the above-mentioned stages, the water spraying of the agitator to the inner drum may affect the treatment effect of the stage on the laundry, so that if the washing stage in which the drum washing machine is currently located is not one of the load weighing stage, the shaking stage and the drying stage, it is identified that the water spraying of the agitator to the inner drum is required.

Furthermore, when the inner tub and the pulsator are operated in the first driving state in the main washing stage, the washing control device of the drum washing machine recognizes that the pulsator needs to be controlled to spray water into the inner tub in the stage. When water is sprayed into the inner drum through the stirrer at the stage, the washing control device of the drum washing machine firstly identifies the driving state of the drum washing machine through the method, and then determines whether to control the stirrer to spray water into the inner drum according to the driving state of the drum washing machine.

Specifically, when the drum washing machine is determined to be in the first driving state, the washing control device of the drum washing machine controls the spray pump to be started within a preset time period, the spray pump pumps the washing water in the inner drum into the circulating pipeline, and then the washing water is conveyed into the stirrer through the circulating pipeline and the water passing shaft, so that the washing water containing the detergent is sprayed to the clothes through the water spraying holes of the stirrer, and therefore the washing effect of the clothes is improved and the abrasion of the clothes when the stirrer applies large mechanical force to the clothes is reduced by combining the large mechanical force applied to the clothes by the inner drum and the stirrer in the main washing stage. Further, after the starting time of the spray pump reaches the preset time, the washing control device of the drum washing machine controls the spray pump to be closed and controls the stirrer to rotate so as to continuously execute the washing program in the water replenishing washing stage.

When the drum washing machine is determined to be in the second driving state, the washing control device of the drum washing machine controls the spraying pump to be closed, and the stirrer is forbidden to spray water into the inner drum.

It should be noted that, because the rotation speed of the inner drum and the agitator is relatively high in the high-speed rotating drum washing mode, in order to reduce the wear of the laundry, optionally, in the high-speed rotating drum washing mode of the main washing stage, the washing control device of the drum washing machine may further control the agitator to spray water into the inner drum according to the above-mentioned water spraying method.

In summary, in the washing control method of the drum washing machine according to the embodiment of the present invention, the drum washing machine is controlled to operate to the main washing stage according to the set washing program, during the operation process of the main washing stage, the drum washing machine is controlled to alternately execute the high-speed tub rotating washing mode and the beating washing mode, then the currently executed washing mode of the drum washing machine is identified, and finally, the drum washing machine is controlled to alternately operate the first driving state and the second driving state according to the currently executed washing mode. The method switches the driving state of the drum washing machine according to the washing mode, and the stirrer and the inner drum rotate reversely at the same speed or different speeds under different driving states, so that the mechanical strength of washing is increased, the washing water is sprayed to the clothes through the stirrer to improve the decontamination effect, and the abrasion to the clothes is reduced, therefore, the washing effect of the clothes is improved, and the washing time is shortened.

Based on the above embodiments, in order to more clearly describe the operation of the drum washing machine to the main washing stage according to the set washing program, the following describes in detail the stages of the drum washing machine performed before the main washing stage. As a possible implementation, before the drum washing machine performs the main washing phase, a load weighing phase, a water inlet phase, a pre-washing phase and a water replenishing heating phase may also be performed.

The load weighing stage is a stage of identifying the weight of the clothes to be washed by the drum washing machine, and it can be understood that the water consumption and the detergent amount required by the drum washing machine for washing the clothes are related to the quantity of the clothes to be washed, and after the clothes to be washed are placed by a user, the drum washing machine detects the weight of the clothes to be washed, so that the water consumption, the detergent amount and the like required by the execution of the washing program can be conveniently determined and adjusted.

In a specific implementation, in the load weighing stage, the drum washing machine may perform load weighing in the first driving state, may perform load weighing in the second driving state, or may perform load weighing in a manner that the two driving states are alternately operated. For example, in the dry cloth weighing stage, the drum washing machine first performs load weighing in the second driving state, and if the load weight is large and the error of load weighing in the second driving state is large, the drum washing machine can be switched to the mode of alternately operating in the two driving states to perform load weighing, so as to improve the accuracy of load weighing.

Specifically, as an implementation manner of the drum washing machine alternately operating in two driving states for load weighing, the drum washing machine first performs load weighing in a first driving state and a second driving state, respectively. As described above, in the drum washing machine, the inner tub and the pulsator rotate in opposite directions in the first driving state, and the pulsator rotates in the same direction as the inner tub in the second driving state, and the resistance applied to the inner tub and the pulsator is obtained by friction between the inner tub and the pulsator and the laundry during rotation, thereby detecting a change in current in the driving motor or detecting the output power of the motor in the case of blockage to determine the weight of the laundry.

In order to realize load weighing in the first driving state and the second driving state and execute the preset weighing times, the washing control device of the drum washing machine controls the drum washing machine to alternately operate in the first driving state and the second driving state.

As an example, the washing control device of the drum washing machine sets the rotation number of the inner drum and the stirrer in each driving state in advance, and controls the drum washing machine to switch to another driving state when the rotation number of the inner drum and the stirrer in the current driving state reaches the preset number is detected by a sensor.

The washing control device of the drum washing machine can control the rotation directions of the inner drum and the stirrer through the opening and closing state of the brake. When the washing control device of the drum washing machine controls the brake to hold tightly, the stirrer and the inner drum rotate reversely, the drum washing machine is in a first driving state, when the brake is released, the stirrer and the inner drum rotate in the same direction, and the drum washing machine is in a second driving state. Therefore, the washing control method of the drum washing machine of the invention judges the position of the brake before switching the driving state, and adjusts the opening and closing state of the brake according to the requirement of the current switching driving state, thereby avoiding damaging the drum washing machine. For example, when the weighing is firstly carried out in the second driving state in the load weighing stage, if the brake is detected to be in the holding state at present, the brake is released, and then the stirrer and the inner cylinder are controlled to rotate in the same direction.

Then, when the washing control device of the drum washing machine controls the drum washing machine to switch the driving state, a first load weight of the drum washing machine in the first driving state each time is obtained, and a second load weight of the drum washing machine in the second driving state each time is obtained.

Furthermore, the washing control device of the drum washing machine obtains the target load weight of the clothes to be washed according to the first load weight obtained in the first driving state and the second load weight obtained in the second driving state. As an example, the washing control device of the drum washing machine obtains a first target load weight in the first driving state according to the first load weight obtained each time, and obtains a second target load weight in the second driving state according to the second load weight obtained each time, where the first target load weight and the second target load weight include numerical values of the first load weight and the second load weight obtained each time, and the number of the first load weight and the second load weight. And then, taking the number of the first load weight and the second load weight as a weight, and carrying out weighted calculation on the first target load weight and the second target load weight to finally obtain the target load weight.

Therefore, according to the method, the contact area between the inner drum and the clothes is enlarged through rotation of the inner drum and the stirrer in different directions, the friction force between the inner drum and the clothes is more accurately acquired, the placement position of the clothes is adjusted through the stirrer, the influence of factors such as the placement position of the clothes on the detection of the friction force between the inner drum and the clothes is reduced, the accuracy of the detected resistance of the drum washing machine is improved, then the average level of the detected load weight is acquired through weighted calculation of the first target load weight and the second target load weight, and the error of the calculated target load weight is reduced.

It should be noted that, when the laundry amount to be washed is large and the work load of the driver is large, for example, when the detected load weight reaches more than 80% of the rated load of the drum washing machine, the driving device may be damaged by the reverse rotation of the agitator and the inner drum, so that, in order to improve the safety and the service life of the drum washing machine, after the target load weight is obtained, the washing control device of the drum washing machine may further determine whether the target load weight exceeds a preset weight threshold. If the target load weight exceeds the weight threshold, operation of the drum washing machine in the first driving state is prohibited during a subsequent washing phase of the washing program, and if the target load weight does not exceed the weight threshold, operation of the drum washing machine in the first driving state is permitted during the subsequent washing phase of the washing program.

Further, after the target load weight is determined, the washing control device of the drum washing machine determines the water level of the inner drum of the water consumption required for executing the washing program according to the target load weight, and then controls the water inlet valve to be opened so as to inject water into the inner drum. In the water inlet stage, the detergent in the detergent box can enter the inner barrel along with water flow, meanwhile, in order to avoid abrasion of clothes, a washing control device of the drum washing machine does not drive the inner barrel to rotate, and after the water level rises to a set water level, the water inlet valve is controlled to be closed and the subsequent washing stage is executed.

Furthermore, after the water level in the inner cylinder reaches the set water level, the washing control device of the drum washing machine controls the drum washing machine to perform pre-washing in the first driving state in order to make the clothes fully absorb moisture and make the detergent fully dissolved. Because the water amount in the inner drum is low at present, part of the clothes may not fully absorb water, and in order to avoid damaging the clothes, the stirrer and the inner drum are controlled to carry out pre-washing by adopting a weaker washing rhythm and a lower washing rotating speed.

As an example, in the pre-washing stage to avoid damaging the laundry, the drum washing machine is operated at a weak washing cycle and a low washing speed, the drum of the drum washing machine may be operated at a spin-stop ratio of 3:2 and a washing speed of 30rpm, and the pulsator may be operated at a spin-stop ratio of 3:2 and a washing speed of 20 rpm.

Further, after the pre-washing stage, the water level in the drum washing machine may be lower than the set water level due to the moisture absorbed by the laundry, and therefore, after the pre-washing stage, the washing control device of the drum washing machine determines whether water is required to be replenished according to the current water level in the drum washing machine, and heats the water at the same time.

In specific implementation, as a possible implementation manner, when the water level in the drum washing machine is lower than the set water level, the washing control device of the drum washing machine controls the water inlet valve to open to replenish water. The opening time of the water inlet valve can be set according to the amount of water to be supplemented, for example, when the distance between the water level in the drum washing machine and the set water level is larger, the water inlet valve is opened for 6 seconds and then closed according to the water inlet speed and the water level difference of the water inlet valve, so that the water level in the inner cylinder is raised to the set water level; and when the water level in the drum washing machine is equal to the set water level or within the allowable error range, controlling the water inlet valve to maintain a closed state and not supplementing water.

It can be understood that, in order to reduce the mechanical strength of washing to protect the laundry due to a low water level in the drum washing machine during the water supplement, the drum washing machine is operated in the first driving state during the opening of the water inlet valve, and the inner drum and the pulsator are operated with a weak first water supplement tempo and a first water supplement rotation speed. When water is not supplemented, the inner drum of the drum washing machine can operate by adopting a second water supplementing rhythm and a second water supplementing rotating speed, wherein the rotation-stop ratio of the second water supplementing rhythm is greater than that of the first water supplementing rhythm, and the second water supplementing rotating speed is greater than that of the first water supplementing rotating speed so as to accelerate the dissolution of the detergent and the water absorption of the clothes.

For example, during the opening of the water inlet valve, the driver drives the inner cylinder and the stirrer to operate at a first water replenishing rhythm, and during the maintaining of the closed state of the water inlet valve, the driver drives the inner cylinder and the stirrer to operate at a second water replenishing rhythm, wherein the rotation-stop ratio of the first water replenishing rhythm can be less than or equal to 7:5, and the rotation-stop ratio of the second water replenishing rhythm can be greater than or equal to 14: 9. Meanwhile, when the driver drives the inner cylinder and the stirrer to operate at a first water supplementing rhythm, the inner cylinder and the stirrer operate at a first water supplementing rotating speed, wherein the first water supplementing rotating speed of the stirrer is smaller than the first water supplementing rotating speed of the inner cylinder, and when the driver drives the inner cylinder and the stirrer to operate at a second water supplementing rhythm, the inner cylinder and the stirrer operate at a second water supplementing rotating speed, wherein the second water supplementing rotating speed of the stirrer is smaller than the second water supplementing rotating speed of the inner cylinder, for example, the first water supplementing rotating speed of the inner cylinder is smaller than or equal to 30RMP, the first water supplementing rotating speed of the stirrer is smaller than or equal to 20RMP, the second water supplementing rotating speed of the inner cylinder is larger than or equal to 45RMP, and the second water supplementing rotating speed of the stirrer is larger than 35RM and smaller than 45 RMP.

Furthermore, during the water replenishing washing stage, in order to fully excite the activity of active enzyme in the detergent, the washing control device of the drum washing machine can control the heater of the drum washing machine to heat, so that the washing effect of the clothes is further improved.

Therefore, by executing the load weighing stage, the water inlet stage, the pre-washing stage and the water replenishing heating stage, the weight of the clothes to be washed is more accurately acquired, the clothes fully absorb moisture and detergent, the abrasion of the clothes is reduced, and the clothes can be fully washed in the main washing stage conveniently.

Based on the above embodiment, after the main washing stage, the drum washing machine continues to perform the subsequent washing stage to wash the laundry. As a possible implementation, after finishing the main washing phase, the drum washing machine may further continue to perform the dehydration phase, the rinsing phase, the shaking phase and the drying phase.

Specifically, after the main washing stage, the drum washing machine discharges the washing water in the inner drum through the water discharge valve, and after the water discharge, the washing control device of the drum washing machine controls the inner drum of the washing machine to operate at a dehydration rotating speed, so that the water in the clothes is separated from the clothes under the influence of inertia, wherein the dehydration rotating speed is less than or equal to 1000 rpm. It should be noted that, because the motor rotates at a higher speed during the dehydration process of the washing machine, in order to avoid the displacement of the washing machine, before the inner drum runs at the dehydration rotation speed, the washing control device of the drum washing machine firstly controls the motor of the washing machine to run at the rotation speed less than or equal to 100RMP, and detects the equilibrium state of the washing machine by the above-mentioned eccentricity sensing method, if the equilibrium state is detected, the inner drum is controlled to rotate at the dehydration rotation speed, and after the dehydration is completed, the rotation speed of the inner drum is controlled to be reduced from the dehydration rotation speed to zero.

Further, after the dehydration is completed, the drum washing machine enters a rinsing stage, the drum washing machine can be operated in a second driving state alone, or the drum washing machine can rinse the clothes in a mode of alternately operating the first driving state and the second driving state, and the detergent in the clothes is separated from the clothes by applying mechanical force to the clothes through the forward and reverse rotation of the inner drum and the stirrer. During the rinsing process, when the drum washing machine is operated to the first driving state, the stirrer can spray water without detergent to the clothes, so that the effect of dissolving the detergent remained in the clothes into the water is improved by spraying.

It should be noted that, in the process of injecting water into the inner drum in the rinsing stage, the washing control device of the drum washing machine can control the water inlet valve of the washing machine to be intermittently opened to flush the detergent box in an intermittent water injection manner, so as to avoid detergent residue, control the water inlet valve to be continuously opened to inject water after the intermittent opening times reach the set times, and control the inner drum and the stirrer to operate at the set rinsing rhythm and rinsing speed after water injection is completed.

Furthermore, after the rinsing is finished, the drum washing machine enters a shaking and scattering stage, and in the shaking and scattering stage, the drum washing machine can operate in the first driving state and also can operate in a mode of alternately operating the first driving state and the second driving state, and ensures that the first driving state of one period is operated before the end of the shaking and scattering stage, and through the reverse rotation of the inner barrel and the stirrer, the clothes are prevented from being stuck in the barrel wall, and the effect of shaking and scattering the wound clothes is improved.

Further, in the final drying stage, the air is heated by the heat source of the drum washing machine to generate hot air, the hot air passes through the clothes to take away moisture in the clothes to become cold humid air, the cold humid air is separated out moisture by the condensing system to become cold dry air, and then the cold dry air passes through the heater again to become hot air to pass through the clothes, thereby repeatedly circulating the condensing type drying. Meanwhile, in the drying process, the washing control device of the drum washing machine may control the drum washing machine to operate in the first driving state, may also operate in the second driving state, or may also alternately operate in the two driving states.

Under the second driving state, the inner drum and the stirrer rotate in the same direction at high speed, so that hot air in the inner drum of the drum washing machine forms hot air flow, the hot air flow is quickly and fully merged into clothes, the hot air flow penetrates through the clothes to become wet and cold air, water contained in the wet clothes is taken away, and the time for drying the clothes is shortened; under the first driving state, the inner drum and the stirrer rotate reversely, and the position of the clothes is adjusted through the stirrer, so that the clothes are prevented from being attached to the drum wall all the time, hot air flow fully contacts all parts of the clothes, uniform drying of the clothes is guaranteed, and partial over-drying or non-drying of the clothes is prevented. In particular, during the drying phase, the washing control device of the drum washing machine may select the driving state of the drum washing machine according to the actual condition of the laundry to be dried.

In order to improve the drying effect of the clothes and shorten the drying time, the washing control device of the drum washing machine can control the drum washing machine to dry the clothes in a mode of alternately operating two driving states.

As an example, in entering the drying phase, the drum washing machine is first controlled to operate in the second driving state for a first preset time period, the hot air flow is rapidly and sufficiently blended into the wet laundry, and then, in order to avoid that the laundry sticks to the tub wall due to the high-speed rotation of the inner tub and the pulsator in the second driving state, the washing control device of the drum washing machine controls the drum washing machine to switch to the first driving state and operate in the first driving state for a second preset time period until the drying phase is completed. Wherein, first predetermined duration and second predetermined duration can be according to the clothing quantity of treating the stoving, material and size are confirmed, for example, when the clothing quantity of treating the stoving is more or contain major possession clothing, for avoiding the clothing winding or major possession clothing to paste on the inner tube inner wall, ensure that each part of clothing is all dried evenly, can corresponding increase second predetermined duration, for example again, if the clothing of treating the stoving contains the difficult material of drying such as more leather, then can improve first predetermined duration, make the steam air current abundant, rapidly fuse in the clothing, in order to shorten the stoving time, promote the stoving effect.

As another example, in the drying phase, the drum washing machine is first controlled to operate in the second driving state for a first preset time period to enable the hot air flow to be rapidly and sufficiently blended into the wet laundry, then the drum washing machine is controlled to switch to the first driving state, and the drum washing machine is controlled to operate alternately between the first driving state and the second driving state for the remaining time period of the drying phase. The method ensures uniform drying of the clothes and is beneficial to drying the clothes which are difficult to dry through switching the first driving state and the second driving state in the residual time, and is suitable for drying the clothes under different scenes.

Therefore, after the main washing stage, residual detergent and stains in the clothes are removed through dehydration and rinsing, the clothes are shaken and dried in a mode of alternately operating in the first driving state and the second driving state, the clothes are prevented from being stuck in the barrel wall, the shaking and drying effects of the clothes are improved, and therefore after the washing program is finished, the clothes can be favorably tidied and aired by a user, and the satisfaction degree of the user is improved.

For a more complete description of the washing procedure of the drum washing machine, a complete washing process of the drum washing machine will be described below. Fig. 4 is a schematic flow chart of a washing procedure provided in an embodiment of the present invention, and the drum washing machine may execute each washing step according to the washing procedure shown in fig. 4, wherein specific implementation manners of each stage may refer to the description of the above embodiment, and are not described again here. As shown in fig. 4, the washing process includes:

s0, the washing process is started.

S1, weighing the load.

And S2, water inflow.

S3, prewashing.

In the pre-washing stage, the water spray is not prohibited, and when the drum washing machine is operated in the first driving state, the washing control device of the drum washing machine first controls the agitator to spray water into the inner drum.

As a possible implementation manner, because the water level in the inner drum is low in the pre-washing stage, part of the clothes may not sufficiently absorb moisture, in order to quickly wet the clothes, the spraying function can be set to be on within a preset time period, and then the injected water is conveyed to the stirrer through the water passing shaft and then is sprayed out through the water spraying holes. The preset duration can be flexibly set according to the target load weight, for example, the range of the preset duration can be 0.5-2 seconds, and when the load weight is larger, the preset water spraying duration is longer. Further, after the spraying function starting time reaches the preset time, the washing control device of the drum washing machine controls the spraying function to be closed and controls the stirrer to rotate so as to continuously execute the washing program in the pre-washing stage.

And S4, supplementing water and heating.

It should be noted that, when the drum washing machine operates in the first driving state in the water replenishing heating stage, the water replenishing heating stage is a non-water spraying prohibiting stage, so that the washing control device of the drum washing machine controls the stirrer to spray water for a preset time before the stirrer and the inner drum operate at the water replenishing beat and the water replenishing rotating speed.

In specific implementation, as a possible implementation manner, in order to make the laundry fully contact with the detergent, the washing control device of the drum washing machine controls the spray pump to be turned on within a preset time period, the spray pump pumps the washing water in the inner drum into the pipeline, and then the washing water is conveyed into the stirrer through the circulating pipeline and the water passing shaft, so that the washing water containing the detergent is sprayed to the laundry through the water spraying holes of the stirrer. Further, after the starting time of the spray pump reaches the preset time, the washing control device of the drum washing machine controls the spray pump to be closed and controls the stirrer to rotate so as to continuously execute the washing program in the water replenishing washing stage.

S5, main washing.

S6, first dehydration. For a specific implementation manner of the first dehydration stage, reference may be made to the description of the dehydration stage in the foregoing embodiment, and details are not described here.

S7, first rinsing. The specific implementation manner of the first rinsing stage may refer to the description of the rinsing stage in the above embodiments, and is not described herein again.

And S8, second dehydration.

The implementation manner of the second dehydration can refer to the method of the first dehydration, and is not described herein again.

And S9, final rinsing.

The final rinsing may be implemented by referring to the first rinsing, and details thereof are not repeated herein.

And S10, finally dehydrating.

Specifically, in the final dehydration stage, the washing control device of the drum washing machine controls the inner tub to operate at a second dehydration rotation speed, wherein the second dehydration rotation speed is greater than or equal to 1100rpm, to improve the dehydration effect of the laundry by rotating the laundry at a high speed. Similarly, before the inner drum runs at the second dehydration rotation speed to avoid the displacement of the washing machine, the washing control device of the drum washing machine firstly controls the motor of the washing machine to run at the rotation speed less than or equal to 100RMP, detects the balance state of the washing machine by the eccentricity sensing method, controls the inner drum to rotate at the second dehydration rotation speed if the balance state is detected to pass, and controls the rotation speed of the inner drum to be reduced from the second dehydration rotation speed to zero after the final dehydration is finished.

And S11, shaking and dispersing.

And S12, drying.

Based on the above embodiments, when the pulsator and the inner tub rotate in forward and reverse directions during the washing process of the drum washing machine, abnormal load may occur, for example, foreign matters or zippers in clothes are caught in a gap between the rotator of the pulsator and the tub, or the rotator of the pulsator is locked due to excessive load. Therefore, in order to avoid damage to the laundry or the drum washing machine due to the load abnormality, when the drum washing machine operates in the first driving state or the second driving state, the washing control device of the drum washing machine detects whether the load abnormality exists in the first driving state or the second driving state of the motor of the drum washing machine, and performs corresponding abnormality treatment when the load abnormality exists.

During specific implementation, the washing control device of the drum washing machine firstly identifies the current driving state of the drum washing machine in the operation process of the drum washing machine, and obtains the working parameters of the motor in the drum washing machine in the current driving state, wherein the working parameters of the motor comprise the working current and/or the working power of the motor.

And then, judging whether the motor has load abnormality in the corresponding driving state according to the acquired working parameters in the first driving state or the second driving state. Specifically, the washing control device of the drum washing machine compares the working current and/or the working power in the first driving state or the second driving state with a preset current threshold and/or a preset power threshold in the corresponding driving state, where the set current threshold and/or the set power threshold may be a driving reference current value collected by the frequency converter when the drum washing machine initially operates in the corresponding driving state, or may be a maximum threshold obtained through experiments when the motor operates in a safe state.

Further, if one of the operating current and the operating power in the first driving state or the second driving state is greater than its corresponding preset threshold, it is determined that the drum washing machine is abnormal in the first driving state or the second driving state.

Further, when the motor is determined to have load abnormality in the first driving state or the second driving state, corresponding abnormality processing is performed on the drum washing machine according to the load abnormality in different driving states.

Specifically, when the motor is determined to be abnormal in the second driving state, the drum washing machine is controlled to stop running, and the voice output device such as a loudspeaker sends out alarm information to remind a user of timely handling the abnormality.

When it is determined that there is an abnormality in the motor in the first driving state, as an example of an abnormality treatment, when the working current and/or the working power of the motor exceeds a set threshold value by a small value and is within a range that allows the drum washing machine to continue to operate, the drum washing machine is controlled to switch from the first driving state to the second driving state, and the drum washing machine is controlled to operate in the second driving state in a subsequent washing process.

And then, acquiring working parameters of the motor in a second driving state, and judging whether the motor still has load abnormity in the second driving state according to the working parameters in the second driving state. In specific implementation, referring to the above method, the operating current and/or operating power in the second driving state may be compared with a set current threshold and/or power threshold corresponding to the second driving state, and if one of the operating current and the operating power in the second driving state is greater than the corresponding threshold, it may be determined that the drum washing machine is abnormal in the second driving state.

Further, when the motor is determined to be still in the second driving state and the load is abnormal, the drum washing machine is controlled to stop running, and alarm information is sent out through voice output equipment such as a loudspeaker to remind a user of timely handling the abnormality; when it is determined that the motor normally operates in the second driving state, it is determined that the load abnormality of the motor is caused by a gap between the rotating body and the drum of the laundry-catching pulsator, and a warning message is transmitted to a user, prompting the user to check the gap between the rotating body and the drum, to remove the malfunction.

As another example, when the working current and/or working power of the motor exceeds the value of the set threshold, exceeds the range that allows the drum washing machine to continue working, and the motor is in a dangerous state, the motor directly controls the drum washing machine to stop running, records the interruption position of the washing program, and sends out an alarm message through a voice output device such as a speaker to remind the user of timely handling the abnormality.

Furthermore, after the exception is cleared, the drum washing machine is restarted, and the washing control device of the drum washing machine controls the drum washing machine to continue to execute the subsequent steps of the washing program from the interruption position, so that the drum washing machine is ensured to finish the washing task while the accident of the drum washing machine is avoided.

Therefore, according to the abnormal handling method of the drum washing machine in the embodiment of the invention, when the load abnormality of the motor in the first driving state is determined, the abnormal handling is carried out on the drum washing machine according to the abnormal degree of the load, the drum washing machine is switched to the first driving body to run or the drum washing machine is stopped to run, so that accidents caused by the exceeding of the temperature of the motor are avoided, the abnormal condition of the drum washing machine is timely judged and handled, and the safety of the drum washing machine is improved.

In order to implement the above embodiments, the present invention further provides a washing control device of a drum washing machine. Fig. 5 is a schematic structural diagram of a washing control device of a drum washing machine according to an embodiment of the present invention. As shown in fig. 5, the washing control device of the drum washing machine includes: a control module 100, an identification module 200 and a status switching module 300.

The control module 100 is configured to control the drum washing machine to operate to a main washing stage according to a set washing program, and control the drum washing machine to alternately execute a high-speed tub rotating washing mode and a beating washing mode during an operation process of the main washing stage.

The identification module 200 is used for identifying a washing mode currently executed by the drum washing machine.

A state switching module 300, configured to control the drum washing machine to switch the driving state according to the currently executed washing mode. The driving state corresponding to the beating washing mode is a first driving state, and the driving state corresponding to the high-speed rotating barrel washing mode is a second driving state.

In a possible implementation manner of the embodiment of the present invention, the control module 100 is specifically configured to control the drum washing machine to perform load weighing and water inlet, and control the drum washing machine to switch between the first driving state and/or the second driving state during the load weighing process.

Further, the control module 100 is further configured to control the drum washing machine to perform pre-washing in the first driving state after water is supplied. And after the pre-washing, the drum washing machine is also used for controlling the drum washing machine to carry out water replenishing washing according to the set water replenishing water level, and in the water replenishing washing stage, the drum washing machine is controlled to operate in the first driving state.

Furthermore, in a possible implementation manner of the embodiment of the present invention, the control module 100 is further configured to control the drum washing machine to enter a rinsing stage after the operation of the main washing stage is finished, and control the drum washing machine to rinse in the first driving state and/or the second driving state during the operation of the rinsing stage. And then, after the operation of the rinsing stage is finished, controlling the drum washing machine to enter a shaking and dispersing stage, and controlling the drum washing machine to be switched to a first driving state to operate for a set time length when the shaking and dispersing stage operates for a preset time length.

In a possible implementation manner of the embodiment of the present invention, the control module 100 is further configured to control the drum washing machine to enter a drying phase after the operation of the shaking phase is finished, and control the drum washing machine to switch between the first driving state and/or the second driving state during the operation of the drying phase.

In a possible implementation manner of the embodiment of the present invention, the state switching module 300 is further configured to obtain a driving state corresponding to a currently executed washing mode, obtain a previous washing mode, which is currently executed by the drum washing machine and is adjacent to the currently executed washing mode, and a driving state corresponding to the previous washing mode, and then control the drum washing machine to switch from the driving state corresponding to the previous washing mode to the driving state corresponding to the currently executed washing mode if the driving state corresponding to the previous washing mode is different from the driving state corresponding to the currently executed washing mode.

Specifically, the state switching module 300 is configured to control the drum washing machine to switch from the first driving state to the second driving state when the currently executed washing mode is the high-speed tub rotating washing mode and the previous washing mode is the beating washing mode; and when the currently executed washing mode is a beating washing mode and the previous washing mode is a high-speed rotating barrel washing mode, controlling the drum washing machine to be switched from the second driving state to the first driving state.

In a possible implementation manner of the embodiment of the present invention, the state switching module 300 is further configured to, before switching the driving state, acquire a current first target state of the brake, determine whether the first target state of the brake matches with the driving state corresponding to the currently executed washing mode, and if the first target state does not match with the driving state corresponding to the currently executed washing mode, control the brake to switch from the first target state to a second target state matching with the driving state corresponding to the currently executed washing mode.

It should be noted that the above explanation of the embodiment of the washing control method for the drum washing machine is also applicable to the washing control device for the drum washing machine of this embodiment, and therefore, the explanation thereof is omitted here.

In summary, the washing control device of the drum washing machine according to the embodiment of the present invention firstly controls the drum washing machine to operate to the main washing stage according to the set washing program, and in the operation process of the main washing stage, controls the drum washing machine to alternately execute the high-speed tub rotating washing mode and the beating washing mode, then identifies the currently executed washing mode of the drum washing machine, and finally controls the drum washing machine to switch the driving state according to the currently executed washing mode. The device switches the driving state of the drum washing machine according to the washing mode, and the stirrer and the inner drum rotate positively and negatively at different washing beats and washing rotating speeds under different driving states, so that the mechanical strength of washing is increased, washing water is sprayed to clothes through the stirrer to improve the decontamination effect, the abrasion to the clothes is reduced, the washing effect of the clothes is improved, and the washing time is shortened.

In order to implement the above embodiment, the present invention further provides a drum washing machine, and fig. 6 is another schematic structural diagram of the drum washing machine according to the embodiment of the present invention, as shown in fig. 6, the drum washing machine includes: the outer tub 10, the inner tub 20, the agitator 30, the driver 40, and the washing control device 50 of the drum washing machine according to the above embodiment.

The inner drum 20 is rotatably disposed in the outer drum 10, the stirrer 30 is rotatably disposed in the inner drum 20, the driver 40 is in transmission connection with the inner drum 20 through the main shaft 41, the main shaft 41 transmits the torque of the driver to the inner drum 20 and/or the stirrer 30, and the washing control device 50 of the drum washing machine is connected with the inner drum 20, the stirrer 30 and the driver 40, and is used for realizing the washing control of the drum washing machine.

The drum washing machine comprises a first driving state and a second driving state; wherein, when the drum washing machine is in a first driving state, the inner tub 20 and the pulsator 30 rotate at different speeds from each other; when the drum washing machine is in the second driving state, the pulsator 30 rotates at the same speed as the drum 20.

It should be noted that the positional relationship of the components in fig. 6 is only a schematic description, and is not used to represent an actual positional relationship.

In order to implement the above embodiments, the present invention further provides an electronic device.

Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 7, the electronic device 120 includes: a processor 121 and a memory 122; the memory 122 is used for storing executable program code; the processor 121 executes a program corresponding to the executable program code by reading the executable program code stored in the memory 122, for implementing the washing control method of the drum washing machine as described in the above embodiments.

In order to implement the above embodiments, the present application further proposes a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the washing control method of the drum washing machine as described in any one of the above aspect embodiments.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (17)

1. A washing control method of a drum washing machine, characterized in that the drum washing machine comprises: an outer barrel, an inner barrel and a stirrer; wherein, the inner cylinder is rotatably arranged in the outer cylinder; the stirrer is rotatably arranged in the inner cylinder; the drum washing machine comprises a first driving state and a second driving state; wherein the inner cylinder and the agitator rotate at different speeds from each other when in the first driving state; the inner barrel and the stirrer rotate at the same speed when in the second driving state;

the washing control method of the drum washing machine comprises the following steps:

controlling the drum washing machine to run to a main washing stage according to a set washing program;

controlling the drum washing machine to alternately operate a first driving state and a second driving state during the operation of the main washing stage;

during the operation of the main wash stage,

controlling the drum washing machine to alternately execute a high-speed rotary-tub washing mode and a beating washing mode;

identifying a washing mode currently performed by the drum washing machine;

controlling the drum washing machine to switch the driving state according to the currently executed washing mode; the driving state corresponding to the beating washing mode is the first driving state, and the driving state corresponding to the high-speed rotating barrel washing mode is the second driving state;

before performing the driving state switching, the method further includes:

acquiring a first target state of a brake, judging whether the first target state of the brake is matched with a driving state corresponding to the currently executed washing mode, and if the first target state is not matched with the driving state corresponding to the currently executed washing mode, controlling the brake to be switched from the first target state to a second target state matched with the driving state corresponding to the currently executed washing mode;

when the inner cylinder and the stirrer rotate at different speeds, the stirrer is controlled to rotate in different directions relative to the inner cylinder.

2. The washing control method of a drum washing machine according to claim 1, wherein the controlling the drum washing machine to switch the driving state according to the currently performed washing mode comprises:

acquiring a driving state corresponding to the currently executed washing mode;

acquiring a previous washing mode which is executed before the drum washing machine and is adjacent to the currently executed washing mode, and a driving state corresponding to the previous washing mode;

and if the driving state corresponding to the previous washing mode is different from the driving state corresponding to the currently executed washing mode, controlling the drum washing machine to be switched from the driving state corresponding to the previous washing mode to the driving state corresponding to the currently executed washing mode.

3. The washing control method of a drum washing machine according to claim 2, characterized by further comprising:

when the currently executed washing mode is the high-speed rotary-tub washing mode and the previous washing mode is the beating washing mode, controlling the drum washing machine to be switched from the first driving state to the second driving state;

and when the currently executed washing mode is the beating washing mode and the previous washing mode is the high-speed rotary-tub washing mode, controlling the drum washing machine to be switched from the second driving state to the first driving state.

4. The washing control method of a drum washing machine according to claim 1, characterized by further comprising:

and controlling the stirrer to spray water into the inner barrel when the beating washing mode is executed.

5. The washing control method of a drum washing machine according to claim 1, characterized by further comprising:

and controlling the rotation speed of the inner barrel to be at least greater than or equal to the critical rotation speed R of the inner barrel when the high-speed rotary barrel washing mode is executed.

6. A washing control method of a drum washing machine according to any one of claims 1-5, characterized in that, before controlling the drum washing machine to run to the main washing stage, the method further comprises:

controlling the drum washing machine to carry out load weighing and water inlet;

and controlling the drum washing machine to carry out load weighing under the first driving state and/or the second driving state in the load weighing process.

7. The washing control method of a drum washing machine according to claim 6, characterized by further comprising, after the water is introduced:

and controlling the drum washing machine to perform pre-washing in the first driving state.

8. The washing control method of a drum washing machine according to claim 7, characterized by further comprising, after the pre-washing:

controlling the drum washing machine to carry out water replenishing washing according to the set water replenishing level;

and controlling the drum washing machine to operate in the first driving state in the water replenishing washing stage.

9. The washing control method of a drum washing machine according to any one of claims 1-5, characterized by further comprising:

after the operation of the main washing stage is finished, controlling the drum washing machine to enter a rinsing stage;

and controlling the drum washing machine to carry out rinsing in a first driving state and/or a second driving state during the rinsing stage operation process.

10. The washing control method of a drum washing machine according to claim 9, characterized by further comprising:

after the operation of the rinsing stage is finished, controlling the drum washing machine to enter a shaking-out stage;

and when the shaking stage runs for a preset time length, controlling the drum washing machine to switch to the first driving state to run for the preset time length.

11. The washing control method of a drum washing machine according to claim 10, characterized by further comprising:

after the operation of the shaking stage is finished, controlling the drum washing machine to enter a drying stage;

and controlling the drum washing machine to dry in the first driving state and/or the second driving state during the drying stage operation.

12. The washing control method of a drum washing machine according to any one of claims 1-5, characterized by further comprising:

and controlling the stirrer to spray water into the inner barrel when the high-speed rotary barrel washing mode is executed.

13. The washing control method of a drum washing machine according to any one of claims 1-5, characterized by further comprising:

before the high-speed rotary drum washing mode is executed, controlling the drum washing machine to judge whether the drum washing machine operates stably according to a dynamic eccentricity sensing method, and if the drum washing machine does not operate stably, controlling to reduce the rotating speed of the drum washing machine so as to enable the drum washing machine to return to the stable state.

14. The washing control method of a drum washing machine according to claim 1, characterized by further comprising:

and when the inner cylinder and the stirrer rotate at different speeds, controlling the rotating speed of the stirrer to be smaller than that of the inner cylinder.

15. The washing control method of a drum washing machine according to claim 1, characterized by further comprising:

and when the inner cylinder and the stirrer rotate at the same speed, controlling the stirrer to rotate in the same direction relative to the inner cylinder.

16. A washing control apparatus of a drum washing machine, characterized in that the drum washing machine comprises: an outer barrel, an inner barrel and a stirrer; wherein, the inner cylinder is rotatably arranged in the outer cylinder; the stirrer is rotatably arranged in the inner cylinder; the drum washing machine comprises a first driving state and a second driving state; wherein the inner cylinder and the agitator rotate at different speeds from each other when in the first driving state; the inner barrel and the stirrer rotate at the same speed when in the second driving state;

the washing control device of the drum washing machine comprises:

the control module is used for controlling the drum washing machine to operate to a main washing stage according to a set washing program, and controlling the drum washing machine to alternately execute a high-speed rotary barrel washing mode and a beating washing mode in the operation process of the main washing stage;

the identification module is used for identifying a washing mode currently executed by the drum washing machine;

the state switching module is used for controlling the drum washing machine to switch the driving state according to the currently executed washing mode; the driving state corresponding to the beating washing mode is the first driving state, and the driving state corresponding to the high-speed rotating barrel washing mode is the second driving state;

before switching driving states, acquiring a first target state where a brake is currently located, judging whether the first target state of the brake is matched with the driving state corresponding to the currently executed washing mode, and if the first target state is not matched with the driving state corresponding to the currently executed washing mode, controlling the brake to be switched from the first target state to a second target state matched with the driving state corresponding to the currently executed washing mode;

when the inner cylinder and the stirrer rotate at different speeds, the stirrer is controlled to rotate in different directions relative to the inner cylinder.

17. A drum washing machine characterized by comprising: an outer tub, an inner tub and a pulsator, and a washing control device of the drum washing machine according to claim 16;

wherein, the inner cylinder is rotatably arranged in the outer cylinder; the stirrer is rotatably arranged in the inner cylinder; the drum washing machine comprises a first driving state and a second driving state; wherein the inner cylinder and the agitator rotate at different speeds from each other when in the first driving state; the inner barrel and the agitator rotate at the same speed when in the second driving state.

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