EP3786332B1

EP3786332B1 - Drum type washing machine and control method and control apparatus thereof, and storage medium

Info

Publication number: EP3786332B1
Application number: EP20186029.3A
Authority: EP
Inventors: Bo Wang
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2019-08-29
Filing date: 2020-07-15
Publication date: 2024-04-24
Anticipated expiration: 2040-07-15
Also published as: CN110670301A; EP3786332A1; CN110670301B; EP3786332C0

Description

TECHNICAL FIELD

The invention relates to the field of washing machine control, and in particular to a drum type washing machine and a control method and control apparatus thereof, and a storage medium.

BACKGROUND

A drum type washing machine utilizes, via rotation of an inner drum, a lifting rib on an inner wall of the inner drum to rise a laundry to a high place for falling, thereby implementing a function of washing the laundry. In this process, it is inevitable to have a rubbing action between the laundry and the inner wall of the inner drum, and thus the laundry is damaged during long-term washing. More seriously, the wear of the laundry due to washing of a lot of washing machines generates a great number of ultramicro plastic particles; and these ultramicro plastic particles cause a more and more serious pollution to the global environment.
EP 1 860 225 A1 relates generally to a cylindrical basket-like washing tub whose central shaft is disposed in a horizontal direction is disposed in an outer casing filled with a cleaning liquid and tightly sealed. A laundry article is placed in the cylindrical basket-like washing tub. Subsequently, the cylindrical basket-like washing tub is rotated about the central shaft in such a manner that the laundry article maintains a near-zero gravity state.

SUMMARY

Aspects of the present invention are set out in the claims. The embodiments of the disclosure provide a drum type washing machine and a control method and control apparatus thereof, and a storage medium, to effectively reduce the wear of laundry in a washing process of the drum type washing machine.
The technical solutions in the embodiments of the disclosure are implemented as follows.
The embodiments of the disclosure provide a method for controlling a drum type washing machine, which includes the following operations.
It is determined that the drum type washing machine enters a washing stage, and the drum type washing machine is controlled, based on a first control parameter, for washing.
The first control parameter is configured to control formation of a water film having a set thickness between an inner wall surface of an inner drum of the drum type washing machine and a laundry, thereby reducing the wear on the laundry.
The embodiments of the disclosure further provide an apparatus for controlling a drum type washing machine, which includes a control module.
The control module is configured to determine that the drum type washing machine enters a washing stage, and to control, based on a first control parameter, the drum type washing machine for washing.
The first control parameter is configured to control formation of a water film having a set thickness between an inner wall surface of an inner drum of the drum type washing machine and a laundry, thereby reducing the wear on the laundry.
The embodiments of the disclosure further provide a drum type washing machine, which includes a processor, and a memory configured to store a computer program executable on the processor; and the processor is configured to perform steps of the method in the embodiments of the disclosure when executing the computer program.
The embodiments of the disclosure further provide a storage medium having stored thereon a computer program that, when executed by a processor, performs steps of the method in the embodiments of the disclosure.
According to the technical solutions provided by the embodiments of the disclosure, it is determined that the drum type washing machine enters the washing stage, and the drum type washing machine is controlled, based on the first control parameter, for washing, such that the water film having the set thickness is formed between the inner wall surface of the inner drum of the drum type washing machine and the laundry; and the water film may separate the laundry in the inner drum from an inner wall of the inner drum, and the laundry is supported though a pressure of the water film, thereby avoiding direct rubbing between the laundry and the inner wall of the inner drum to reduce the wear on the laundry.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a flowchart schematic diagram of a method for controlling a drum type washing machine according to an embodiment of the disclosure.
FIG. 2 illustrates a flowchart schematic diagram of water supplementary washing of a drum type washing machine according to an embodiment of the disclosure.
FIG. 3 illustrates a structural schematic diagram of a water spraying mechanism of a drum type washing machine disposed on a rear portion of an inner drum according to an embodiment of the disclosure.
FIG. 4 illustrates a structural schematic diagram of a water spraying mechanism of a drum type washing machine disposed on a front portion of an inner drum according to an embodiment of the disclosure.
FIG. 5 illustrates a flowchart schematic diagram of a method for controlling a drum type washing machine according to an embodiment of the disclosure.
FIG. 6 illustrates a structural schematic diagram of an apparatus for controlling a drum type washing machine according to an embodiment of the disclosure.
FIG. 7 illustrates a structural schematic diagram of a drum type washing machine according to an embodiment of the disclosure.

DETAILED DESCRIPTION

In order to make the objectives, technical solutions and advantages of the disclosure more clearly, the disclosure will be further described below in detail in combination with the accompanying drawings.
In the following description, "some embodiments" are involved, which describes subsets of all possible embodiments. However, it is appreciated that the "some embodiments" may be the same subsets or different subsets of the all possible embodiments, and may be combined with each other without conflicts.
In the following description, the terms "first and second" related are merely for distinguishing similar objects rather than a special order of the objects. It is appreciated that the "first and second" may exchange a special sequence or chronological sequence in an allowed condition, such that the embodiments of the disclosure described herein can be implemented in a sequence other than that illustrated or described herein.
Unless otherwise defined, all technical and scientific terms used in the specification have a same meaning generally understood by a person skilled in the art to which the disclosure belongs. The terms used in the specification of the disclosure are merely to describe the specific embodiments, rather than to limit the disclosure.
The invention provides a method for controlling a drum type washing machine. As shown in FIG. 1, the method includes the following operations.
At S101, it is determined that the drum type washing machine enters a washing stage, and the drum type washing machine is controlled, based on a first control parameter, for washing.
Herein, the washing stage of the drum type washing machine includes at least one of a preliminary washing stage, a primary washing stage or a rinsing stage. The first control parameter is configured to control formation of a water film having a set thickness between an inner wall surface of an inner drum of the drum type washing machine and laundry in at least one of the preliminary washing stage, the primary washing stage or the rinsing stage, thereby reducing the wear on the laundry. The preliminary washing stage refers to a stage in which the laundry and water are mixed for preliminary washing after the drum type washing machine reaches a set water level.
In an embodiment, the first control parameter includes a control parameter corresponding to the preliminary washing stage, a control parameter corresponding to the primary washing stage and a control parameter corresponding to the rinsing stage, and is configured to control the drum type washing machine to form the water film having the set thickness between the inner wall surface of the inner drum and the laundry in the corresponding stage.
The thickness of the water film is relevant to a water level in the drum type washing machine and a rotational speed of the inner drum. Upon this, in an embodiment, the first control parameter includes an inner-drum water level and an inner-drum rotational speed; and the operation that the drum type washing machine is controlled, based on the first control parameter, for washing includes the following operation.
It is determined that a water level in the drum type washing machine is the inner-drum water level, and the inner drum of the drum type washing machine is controlled to operate at the inner-drum rotational speed.
In an embodiment, the first control parameter further includes an inner-drum action beat, the inner-drum action beat including a rotation duration and a rotation stopping duration of the inner drum within one rotation period; and the operation that the inner drum of the drum type washing machine is controlled to operate at the inner-drum rotational speed may include the following operation: the inner drum is controlled to operate at the inner-drum rotational speed according to the inner-drum action beat.
In order to keep the water film stable, the drum type washing machine further includes a water spraying mechanism that is fixedly disposed relative to an outer drum of the drum type washing machine, the water spraying mechanism is configured to spray water to the inner wall surface of the inner drum, and the first control parameter further includes a water spraying action beat, the water spraying action beat including a water spraying duration and a water spray stopping duration of the water spraying mechanism within one water spray period; and the operation that the drum type washing machine is controlled, based on the first control parameter, for washing further includes the following operation: the water spraying mechanism is controlled to operate according to the water spraying action beat.
As the water films corresponding to different types of laundry have different thicknesses, in order to better protect the laundry, in an embodiment, the method may further include that: the first control parameter is determined based on a type of the laundry, such that the thickness of the water film corresponds to the type of the laundry.
During the preliminary washing stage of the drum type washing machine, before determining that the drum type washing machine enters the primary washing stage, a control apparatus of the drum type washing machine controls the drum type washing machine to perform water supplementary washing, such that the water level in the inner drum of the drum type washing machine meets a set water level.
In an actual application, the control apparatus of the drum type washing machine receives a mode or a water level set value input by a user, and determines the set water level according to the mode or the water level set value. The control apparatus controls a water inlet valve to feed the water, and receives a water level value detected by a water level detection sensor. When determining that the detected water level value meets the set water level, the control apparatus controls the drum type washing machine to perform the water supplementary washing. By means of the water supplementary washing, the influence of the wetting of the laundry on the water level in the inner drum is considered, which is helpful to improve the accuracy of the water level in the primary washing stage. Specifically, as shown in FIG. 2, the operation that the control apparatus controls the drum type washing machine to perform the water supplementary washing may include the following operations.
At S201, the drum type washing machine is controlled, based on a water supplementary washing control parameter, for washing.
In an embodiment, the water supplementary washing control parameter includes a water supplementing duration, an inner-drum rotational speed in water supplementing, and an inner-drum action beat in water supplementing. The control apparatus starts a timer to time the water supplementation, and controls a motor to drive the inner drum of the drum type washing machine to act at the inner-drum rotational speed in water supplementing and the inner-drum action beat in water supplementing. The inner-drum rotational speed in water supplementing refers to a rotational speed of the inner drum in the water supplementary washing stage, and the inner-drum action beat in water supplementing refers to a rotation duration and a rotation stopping duration of the inner drum within one rotation period in the water supplementary washing stage.
At S202, whether a detected water level is smaller than a set water level is determined; if yes, S203 is executed; and if no, S204 is executed.
After entering the water supplementary washing stage, the control apparatus further receives the water level in the inner drum that is detected by the water level detection sensor on the drum type washing machine, compares the detected water level with the set water level for judgment, executes S203 when determining that the detected water level is smaller than the set water level, and executes S204 when determining that the detected water level reaches the set water level.
At S203, a water inlet valve is controlled to supplement water.
The control apparatus controls the water inlet valve to feed the water for a set water amount or a set duration. The set water amount or the set duration is provided reasonably according to precision of water supplementation in single time. Thereafter, S201 is returned.
At S204, whether a water supplementary washing duration reaches a water supplementing duration is determined; if yes, the water supplementary washing is ended; and if no, S201 is returned.
Whether the water supplementary washing duration reaches the set water supplementing duration is determined by the timer; if yes, the water supplementary washing is ended and the primary washing stage is entered. If no, S201 is returned to continue to execute the water supplementary washing.
In an embodiment, the inner drum of the drum type washing machine is a perforated inner drum, i.e., multiple permeable holes are arranged on the wall of the inner drum. For the perforated inner drum, the drum type washing machine further includes a water spraying mechanism that is fixedly disposed relative to an outer drum of the drum type washing machine; and the water spraying mechanism is configured to spray the water to the inner wall surface of the inner drum.
In an example, as shown in FIG. 3, the water spraying mechanism is disposed on a rear portion of the inner drum (on a side of the inner drum that is axially away from an opening). For example, the water spraying mechanism includes a spray pump and a water outlet. The spray pump is disposed in a transmission shaft and communicates with an external water source. The water outlet controls a water spray angle, such that the water guided out by the spray pump is uniformly sprayed to the inner wall surface of the inner drum.
In an example, as shown in FIG. 4, the water spraying mechanism is disposed on a front portion of the inner drum (on a side of the inner drum that is axially close to the opening). For example, the water spraying mechanism includes a spray pump and a water outlet. The spray pump is disposed fixedly relative to the outer drum and communicates with an external water source. The water outlet controls a water spray angle, such that the water guided out by the spray pump is uniformly sprayed to the inner wall surface of the inner drum.
For the drum type washing machine having the perforated inner drum, in an embodiment, the first control parameter includes an inner-drum rotational speed, an inner-drum action beat and a water spraying action beat, and the operation that the drum type washing machine is controlled, based on the first control parameter, for washing may include the following operation.
The drum type washing machine is controlled to operate at the inner-drum rotational speed according to the inner-drum action beat, and the water spraying mechanism is controlled to operate at the water spraying action beat.
The inner-drum action beat includes a rotation duration and a rotation stopping duration of the inner drum within one rotation period, and the water spraying action beat includes a water spraying duration and a water spray stopping duration of the water spraying mechanism within one water spray period.
In an actual application, the control apparatus of the drum type washing machine may automatically identify the type of the laundry via an image detection algorithm or determine the type of the laundry according to a type parameter of the laundry that is input by the user; and moreover, the control apparatus preliminarily stores first control parameters corresponding to different types of the laundry. In this way, the corresponding first control parameter may be determined according to the type of the laundry, such that the thickness of the formed water film corresponds to the type of the laundry to better protect the laundry.
According to the control method provided by the embodiments of the disclosure, it is determined that the drum type washing machine enters the primary washing stage, and the drum type washing machine is controlled, based on the first control parameter corresponding to the type of the laundry, for washing, such that the water film having the set thickness is formed between the inner wall surface of the inner drum of the drum type washing machine and the laundry; and the water film may separate the laundry in the inner drum from an inner wall of the inner drum, and the laundry is supported though a pressure of the water film, thereby avoiding direct rubbing between the laundry and the inner wall of the inner drum to reduce the wear on the laundry.
In the primary washing stage, the inner-drum rotational speed is controlled, such that the laundry and the water rise with the inner drum. In this process, by spraying the water to the laundry and the inner drum, and with the utilization of a difference of relative velocity between the laundry and the inner drum, the water film is generated to separate the laundry and the inner wall of the inner drum, and the pressure generated by the water film supports the laundry. The water film fills a gap between the laundry and the inner wall of the inner drum, thereby avoiding the laundry from directly rubbing the inner drum to reduce the damage on the laundry.
In an actual application, the thickness d of the water film is correlated with the inner-drum rotational speed R, the water level W and the water spray amount V, i.e., d=f(R,W,V). The larger the rotational speed R, the smaller the d; and the higher the water level W and the larger the water spray amount V, the larger the d.
The embodiment of the present disclosure determines the corresponding type of the laundry according to a fiber surface characteristic and a processing technology of the laundry. For example, on one hand, the silk, wool, cotton, linen, chemical fiber and the like have different fiber surface characteristics; and on the other hand, through different processing technologies such as weaving and knitting, or plain weaving and twilling, different flatnesses of the surface of the laundry are formed. In the washing process of the laundry, the water film having the appropriate thickness is formed between the surface of the fabric and the inner wall of the inner drum according to different characteristics of the laundry, thereby ensuring a certain washing performance, better protecting the laundry and reducing the wear.
In an embodiment, when the type of the laundry is a wool knitted fabric, the water film has a set thickness of 5-10 mm.
In an embodiment, when the type of the laundry is embroidered laundry, the water film has a set thickness of 8-12 mm.
In an embodiment, when the type of the laundry is a chemical fiber woven fabric, the water film has a set thickness of 0.5-2 mm.
In an embodiment, when the type of the laundry is a cotton and linen woven fabric, the water film has a set thickness of 0.5-7 mm.
In the embodiment of the disclosure, by identifying the type of the laundry, the corresponding first control parameter is determined according to the corresponding type of the laundry, thereby controlling the drum type washing machine for washing. The control on the corresponding water film may be implemented according to different types of the laundry to achieve the best laundry protection effect.
When the first control parameter is used to control the drum type washing machine for washing, the inner wall surface of the inner drum is separated from the surface of the laundry via the water film having the set thickness, which is helpful to protect the laundry. However, as the rubbing force on the surface of the laundry is reduced, the washing efficiency of the laundry may be affected. In an embodiment, the method may further include the following operation.
The drum type washing machine is controlled, based on a second control parameter, for washing in the washing stage.
The second control parameter is configured to control the water film to be absent between the inner wall surface of the inner drum of the drum type washing machine and the laundry or to control a thickness of the water film to be smaller than the set thickness.
In an embodiment, the second control parameter may be obtained by adjusting a corresponding value of the first control parameter. For example, at least one of the followings may be included: the inner-drum water level in the first control parameter is reduced, the inner-drum rotational speed in the first control parameter is increased, the water spraying action beat in the first control parameter is adjusted such that the water spray amount within the water spray period is reduced, and the inner-drum action beat in the first control parameter is adjusted such that the rotation duration of the inner drum in the rotation period is reduced.
In an embodiment, in the washing stage, the drum type washing machine is controlled to operate alternately based on the first control parameter and the second control parameter, or after the drum type washing machine is controlled to operate for a first set duration based on the first control parameter, the drum type washing machine is controlled to operate for a second set duration based on the second control parameter. In this way, the wear of the laundry in the washing process is reduced, and the washing effect of the laundry is ensured.
In an embodiment, the inner drum of the drum type washing machine is an imperforated inner drum, i.e., no permeable hole is provided on the wall of the inner drum. By improving the structure of the opening of the inner drum, the water drainage in dewatering is implemented. For the imperforated inner drum, as no permeable hole is provided on the wall of the inner drum, the water film may be kept for a long time. Accordingly, the water spraying mechanism shown in FIG. 3 or FIG. 4 may be omitted for the drum type washing machine. In an embodiment, the first control parameter includes an inner-drum water level, an inner-drum rotational speed and an inner-drum action beat, and the operation that the drum type washing machine is controlled, based on the first control parameter, for washing may include the following operation.
It is determined that a water level in the drum type washing machine is the inner-drum water level, and the drum type washing machine is controlled to operate at the inner-drum rotational speed according to the inner-drum action beat.
The inner-drum action beat includes a rotation duration and a rotation stopping duration of the inner drum within one rotation period.
In the embodiment of the disclosure, the control on the thickness of the water film may be implemented by controlling the inner-drum rotational speed and the inner-drum action beat without disposing the water spraying mechanism on the drum type washing machine. In addition, by identifying the type of the laundry, the corresponding first control parameter is determined according to the corresponding type of the laundry, thereby controlling the drum type washing machine for washing. The control on the corresponding water film may be implemented according to different types of the laundry to achieve the best laundry protection effect.
It is to be noted that the method in the embodiment of the disclosure may control formation of the water film having the set thickness between the inner wall surface of the inner drum of the drum type washing machine and the surface of the laundry in the primary washing stage, and may further control formation of the water film having the set thickness between the inner wall surface of the inner drum of the drum type washing machine and the surface of the laundry in the preliminary washing or rinsing stage, thereby protecting the laundry completely in the whole washing process.
FIG. 5 illustrates a flowchart schematic diagram of a method for controlling a drum type washing machine according to an embodiment of the disclosure. As shown in FIG. 5, the method may include the following operations.
At S501, water is fed to a set water level.
After the drum type washing machine is powered on, the control apparatus receives a parameter (such as a washing mode, a type of the laundry, etc.) input by the user, starts the washing machine, and controls the water inlet valve to feed the water to the set water level W1.
At S502, water supplementary washing is performed based on a water supplementary washing control parameter.
In an embodiment, the water supplementary washing control parameter includes a water supplementing duration, an inner-drum rotational speed in water supplementing, and an inner-drum action beat in water supplementing. The control apparatus starts a timer to time the water supplementation, and controls a motor to drive the inner drum of the drum type washing machine to act at the inner-drum rotational speed in water supplementing and the inner-drum action beat in water supplementing. The inner-drum rotational speed in water supplementing refers to a rotational speed of the inner drum in the water supplementary washing stage, and the inner-drum action beat in water supplementing refers to a rotation duration and a rotation stopping duration of the inner drum within one rotation period in the water supplementary washing stage. For example, the water supplementing duration is T1, the inner-drum action beat in water supplementing is A1, and the inner-drum rotational speed in water supplementing is B1. T1=15 min, A1=8s/8s (the motor has operation time of 8 s and stop time of 8 s, and the following is the same as above), and B1=35 Revolutions Per Minute (RPM).
At S503, whether a detected water level is smaller than the set water level is determined; if yes, S504 is executed; and if no, S505 is executed.
After entering the water supplementary washing stage, the control apparatus further receives the water level in the inner drum that is detected by the water level detection sensor on the drum type washing machine, compares the detected water level with the set water level W1 for judgment, executes S504 when determining that the detected water level is smaller than the set water level W1, and executes S505 when determining that the detected water level reaches the set water level.
At S504, the water inlet valve is controlled to supplement water.
The control apparatus controls the water inlet valve to feed the water for a set water amount or a set duration. The set water amount or the set duration is provided reasonably according to precision of water supplementation in single time. Thereafter, S502 is returned.
At S505, whether a water supplementary washing duration reaches a water supplementing duration is determined; if yes, the water supplementary washing is ended and S506 is executed; and if no, S502 is returned.
Whether the water supplementary washing duration reaches the set water supplementing duration is determined by the timer; if yes, the water supplementary washing is ended and the primary washing state is entered (S506 is executed). If no, S502 is returned to continue to execute the water supplementary washing.
At S506, primary washing is performed based on a first control parameter.
With the drum type washing machine having the perforated inner drum as an example, the first control parameter includes an inner-drum water level, an inner-drum rotational speed, an inner-drum action beat and a water spraying action beat, and the operation that the drum type washing machine is controlled, based on the first control parameter, for washing may include the following operation.
It is determined that the water level in the inner drum is the inner-drum water level; or otherwise, the water level is controlled by a water supplementing valve or a drainage valve to meet the inner-drum water level, the drum type washing machine is controlled to operate at the inner-drum rotational speed according to the inner-drum action beat, and the water spraying mechanism is controlled to operate at the water spraying action beat.
The inner-drum action beat includes a rotation duration and a rotation stopping duration of the inner drum within one rotation period, and the water spraying action beat includes a water spraying duration and a water spray stopping duration of the water spraying mechanism within one water spray period.
Supposing that the type of the laundry is F, the primary washing time T2, the inner-drum action beat A2, the inner-drum rotational speed B2 and the water spraying action beat P1 are set according to the F type. The washing is performed based on the first control parameter according to the type corresponding to the laundry.
For example, when the F is the wool knitted fabric, T2=15 min, A2=3s/25s, B2=35 rpm and P1=2s/26s.
It is to be noted that the A2 and the P1 may be multiple combinations, i.e., the A2 and the P1 may change within different periods.
In such a situation, the water film formed between the wool knitted fabric and the inner wall of the inner drum has the thickness d of about 5-10 mm.
Also for example, when the F is the embroidered laundry, T2=10 min, A2=3s/50s, B2=30 rpm and P1=5s/48s.
In such a situation, the water film formed between the embroidered laundry and the inner wall of the inner drum has the thickness d of about 8-12mm.
Also for example, when the F is the chemical fiber woven fabric, T2=30 min, A2=10s/8s, B2=50 rpm and P1=2s/16s.
In such a situation, the water film formed between the chemical fiber woven fabric and the inner wall of the inner drum has the thickness d of about 0.5-2 mm.
Also for example, when the F is the cotton and linen woven fabric, T2=40 min, A2=17s/8s, B2=45 rpm and P1=5s/20s.
In such a situation, the water film formed between the cotton and linen woven fabric and the inner wall of the inner drum has the thickness d of about 0.5-7 mm.
At S507, whether a primary washing duration reaches a primary washing duration is determined; if yes, the primary washing is ended and S508 is executed; and if no, S506 is returned.
Whether the primary washing duration reaches the set primary washing duration is determined by the timer; if yes, the primary washing is ended and the rinsing stage is entered (S508 is executed). If no, S506 is returned to continue to execute the primary washing.
At S508, subsequent rinsing is performed.
The control apparatus controls, based on the control parameter corresponding to the rinsing stage in the first control parameter, the drum type washing machine for rinsing, such that the water film having the set thickness is formed between the inner wall surface of the inner drum of the drum type washing machine and the laundry to reduce the wear on the laundry.
With the drum type washing machine having the perforated inner drum as an example, the rinsing control parameter corresponding to the rinsing stage includes an inner-drum rotational speed in rinsing, an inner-drum action beat in rinsing and a water spraying action beat in rinsing; and the operation that the drum type washing machine is controlled for rinsing may include the following operation.
Within the rinsing duration, the drum type washing machine is controlled to operate at the inner-drum rotational speed in rinsing according to the inner-drum action beat in rinsing, and the water spraying mechanism is controlled to operate at the water spraying action beat in rinsing.
The inner-drum action beat in rinsing includes a rotation duration and a rotation stopping duration of the inner drum within one rotation period, and the water spraying action beat in rinsing includes a water spraying duration and a water spray stopping duration of the water spraying mechanism within one water spray period.
According to the embodiment, the drum type washing machine is controlled, based on the first control parameter corresponding to the type of the laundry, for the primary washing, such that the water film having the set thickness is formed between the inner wall surface of the inner drum of the drum type washing machine and the laundry; and the water film may separate the laundry in the inner drum from an inner wall of the inner drum, and the laundry is supported though a pressure of the water film, thereby avoiding direct rubbing between the laundry and the inner wall of the inner drum to reduce the wear on the laundry. In addition, in the embodiment, the drum type washing machine is further controlled, based on the rinsing control parameter corresponding to the type of the laundry, for rinsing, such that the protection effect on the laundry may be enhanced in the rinsing stage.
In order to implement the method in the embodiments of the disclosure, the embodiments of the disclosure further provide an apparatus for controlling a drum type washing machine. As shown in FIG. 6, the control apparatus may include a control module 601.
The control module 601 is configured to determine that the drum type washing machine enters a washing stage, and to control, based on a first control parameter, the drum type washing machine for washing.
A water film having a set thickness is formed between an inner wall surface of an inner drum of the drum type washing machine and laundry in the washing stage, thereby reducing the wear on the laundry.
In an embodiment, the first control parameter includes an inner-drum water level and an inner-drum rotational speed; and the control module 601 is specifically configured to:
determine that a water level in the drum type washing machine is the inner-drum water level, and control the inner drum of the drum type washing machine to operate at the inner-drum rotational speed.
In an embodiment, the first control parameter further includes an inner-drum action beat, the inner-drum action beat including a rotation duration and a rotation stopping duration of the inner drum within one rotation period; and the control module 601 is specifically configured to control the inner drum to operate at the inner-drum rotational speed according to the inner-drum action beat.
In an embodiment, the drum type washing machine further includes a water spraying mechanism that is fixedly disposed relative to an outer drum of the drum type washing machine, the water spraying mechanism is configured to spray water to the inner wall surface of the inner drum, and the first control parameter further includes a water spraying action beat, the water spraying action beat including a water spraying duration and a water spray stopping duration of the water spraying mechanism within one water spray period; and the control module 601 is further configured to control the water spraying mechanism to operate according to the water spraying action beat.
In an embodiment, the control module 601 is further configured to determine the first control parameter based on a type of the laundry, such that the thickness of the water film corresponds to the type of the laundry. In an embodiment, the control module 601 is further configured to control, based on a second control parameter, the drum type washing machine for washing. The second control parameter is configured to control the water film to be absent between the inner wall surface of the inner drum of the drum type washing machine and the laundry or to control a thickness of the water film to be smaller than the set thickness.
In an embodiment, the control module 601 is specifically configured to control, after determining that the drum type washing machine operates for a first set duration based on the first control parameter, the drum type washing machine to operate for a second set duration based on the second control parameter.
In an actual application, the control module 601 may be implemented by a processor in the control apparatus. Certainly, the processor needs to operate a computer program in a memory to implement the function.
It is to be noted that when the apparatus for controlling the drum type washing machine provided by the above embodiment controls the drum type washing machine, each program module is merely illustrative. In actual applications, the above processing may be distributed to different program modules as required, that is, an internal structure of the apparatus is divided into different program modules to complete all or a part of processing described above. In addition, the apparatus for controlling the drum type washing machine provided by the above embodiment has a same concept with the method embodiment for controlling the drum type washing machine, and a specific implementation process is detailed in the method embodiment and will no longer be repeated herein.
Based on hardware implementation of the program module, and in order to implement the method in the embodiments of the disclosure, the embodiments of the disclosure further provide a washing machine.
As shown in FIG. 7, the washing machine provided by the embodiments of the disclosure may include at least one processor 701, and a memory 702. The processor 701 is in communication connection with a water inlet valve, a water level detection sensor and a drive apparatus (such as a motor). In the embodiment of the disclosure, the memory 702 is configured to store various types of data to allow the operation of the washing machine. Examples of such data include any computer program operated on the washing machine.
The method for controlling the drum type washing machine disclosed in the embodiments of the disclosure may be applied to the processor 701, or may be implemented by the processor 701. The processor 701 may be an integrated circuit chip, and has a signal processing capability. During implementation, each step of the method for controlling the drum type washing machine may be completed by means of an integrated logic circuit of hardware in the processor 701 or an instruction of software. The processor 701 may be a universal processor, a Digital Signal Processor (DSP), or another programmable logic device, discrete gate or transistor logic device, discrete hardware component and the like. The processor 701 may implement or execute each method, step or logic block diagram disclosed in the embodiments of the disclosure. The universal processor may be a microprocessor, or any conventional processor, etc. The step of the method disclosed in combination with the embodiments of the disclosure may be directly executed and completed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be included in a storage medium. The storage medium is included in the memory 702. The processor 701 reads information in the memory 702, and completes the step of the method for controlling the drum type washing machine provided by the embodiments of the disclosure in combination with hardware.
In an exemplary embodiment, the washing machine may be implemented by one or more of an Application Specific Integrated Circuit (ASIC), a DSP, a Programmable Logic Device (PLD), a Complex Programmable Logic Device (CPLD), a Field Programmable Gate Array (FPGA), a universal processor, a controller, a Micro Controller Unit (MCU), a microprocessor, or other electronic components to execute the above method.
It is appreciated that the memory 702 may be a volatile memory or a nonvolatile memory, and may also include both the volatile memory and the nonvolatile memory. The nonvolatile memory may be a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Ferromagnetic Random Access Memory (FRAM), a flash memory, a magnetic surface memory, an optical disc or a Compact Disc Read-Only Memory (CD-ROM); and the magnetic surface memory may be a magnetic disk memory or magnetic tape memory. The volatile memory may be a Random Access Memory (RAM), and serves as an external high-speed cache. Through illustrative but not restrictive description, many forms of RAMs may be available, for example, a Static Random Access Memory (SRAM), a Synchronous Static Random Access Memory (SSRAM), a Dynamic Random Access Memory (DRAM), a Synchronous Dynamic Random Access Memory (SDRAM), a Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), an Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), a SyncLink Dynamic Random Access Memory (SLDRAM), and a Direct Rambus Random Access Memory (DRRAM). The memory described in the embodiment of the disclosure includes but not limited to these and any other appropriate types of memories.
In an exemplary embodiment, the embodiments of the disclosure further provide a storage medium, i.e., a computer storage medium, which may be a computer readable storage medium specifically, and includes, for example, the memory 702 for storing a computer program; and the computer program may be processed by the processor 701 to complete the step of the method in the embodiments of the disclosure. The computer readable storage medium may be memories such as an ROM, a PROM, an EPROM, an EEPROM, a Flash Memory, a magnetic surface memory, an optical disk, or a D-ROM.
It is to be noted that the technical solutions recorded in the embodiments of the disclosure may be combined without conflicts.
The above is only the specific implementation manner of the disclosure and not intended to limit the scope of protection of the disclosure. The scope of protection of the present invention is defined by the appended claims.

Claims

A method for controlling a drum type washing machine, the method comprising:
determining (101) that the drum type washing machine enters a washing stage, wherein the washing stage is at least one of a preliminary washing stage, a primary washing stage or a rinsing stage; and

controlling the drum type washing machine for washing, based on a first control parameter, the first control parameter corresponding to the washing stage of the drum type washing machine, and wherein the first control parameter is configured to control formation of a water film having a set thickness between an inner wall surface of an inner drum of the drum type washing machine and a laundry;

the first control parameter comprises an inner-drum water level, W and an inner-drum rotational speed, R, and the controlling of the drum type washing machine based on the first control parameter further comprises:
determining that a water level in the drum type washing machine is the inner-drum water level, W; and

controlling the inner drum of the drum type washing machine to operate at the inner-drum rotational speed, R based on the determination that the water level in the drum type washing machine is the inner-drum water level, W;

characterised in that the drum type washing machine further comprises a water spraying mechanism that is fixedly disposed relative to an outer drum of the drum type washing machine, the water spraying mechanism is configured to spray water to the inner wall surface of the inner drum, and the first control parameter further comprises a water spraying action beat, the water spraying action beat comprising a water spraying duration and a water spray stopping duration of the water spraying mechanism within one water spraying period; and

controlling, based on the first control parameter, the drum type washing machine for washing further comprises:
controlling the water spraying mechanism to operate according to the water spraying action beat.
The method for controlling the drum type washing machine of claim 1, wherein the first control parameter further comprises an inner-drum action beat, the inner-drum action beat comprises a rotation duration and a rotation stopping duration of the inner drum within one rotation period; and the controlling the inner drum of the drum type washing machine to operate at the inner-drum rotational speed comprises:
controlling the inner drum to operate at the inner-drum rotational speed according to the inner-drum action beat.
The method for controlling the drum type washing machine of any preceding claim, wherein the method further comprises:
determining the first control parameter based on a type of the laundry, such that the thickness of the water film corresponds to the type of the laundry.
The method for controlling the drum type washing machine of any preceding claim, wherein the method further comprises:
controlling, based on a second control parameter, the drum type washing machine for washing in the washing stage; and

the second control parameter is configured to control the water film to be absent between the inner wall surface of the inner drum of the drum type washing machine and the laundry or to control a thickness of the water film to be smaller than the set thickness.
The method for controlling the drum type washing machine of claim 4, wherein the controlling, based on the second control parameter, the drum type washing machine for washing comprises:
after determining that the drum type washing machine operates for a first set duration based on the first control parameter, controlling the drum type washing machine to operate for a second set duration based on the second control parameter.
A drum type washing machine, comprising:
a water spraying mechanism that is fixedly disposed relative to an outer drum of the drum type washing machine; a processor (701); and

a memory (702) configured to store a computer program executable on the processor, which when executed by the processor, causes the drum type washing machine to perform the steps of the method of any one of the claims 1 to 5.
A computer program product comprising instructions to cause the drum type washing machine of claim 6 to carry out the steps of the method of any one of the claims 1 to 5.
A computer-readable storage medium having stored thereon a computer program of claim 7.