CN115262168A - Washing machine and control method thereof - Google Patents

Abstract

The embodiment of the application provides a washing machine and a control method thereof, relates to the technical field of washing machines, and is used for correcting the maximum value of the rotating speed of a dewatering program according to the weight of clothes in the process of executing the dewatering program by the washing machine, so that the problems of overlong dewatering time, drum collision and the like of the washing machine can be avoided. The washing machine includes: a box body; a cartridge assembly; a weight sensor for detecting the weight of the laundry within the drum assembly; a controller electrically connected to the weight sensor and configured to: acquiring the weight of the clothes after the washing machine executes the pre-dehydration program through a weight sensor; determining the maximum value of the rotating speed of the dehydration program according to the weight of the clothes after the pre-dehydration program is executed by the washing machine; acquiring the weight of the clothes of the washing machine after the I stage of the dehydration program is executed in the process of executing the dehydration program; according to the weight of clothes in the i stage of the dewatering program executed by the washing machine, the maximum value of the rotating speed of the dewatering program is adjusted.

Description

Washing machine and control method thereof

Technical Field

The application relates to the technical field of washing machines, in particular to a washing machine and a control method thereof.

Background

With the continuous development of the technological level and the pursuit of people for nice life, the washing machine is in the process of being transported, the problem of the tired housework of washing clothes is solved, and the hands of people are liberated. The washing machine is gradually becoming an electric appliance owned by a household.

The washing machine runs the dehydration program, so that the water content of the cleaned clothes is reduced as much as possible, and the user can dry the clothes more quickly. At present, a washing machine determines the maximum value of the rotation speed of a dehydration program according to the weight of clothes after the washing machine performs a pre-dehydration program; and according to the maximum value of the rotating speed, executing a dehydration program. However, the maximum value of the rotation speed of the spin-drying program determined in this way may not be reasonable enough, so that the problems that the spin-drying time is too long, the drum is knocked and the like affects the user experience may occur when the spin-drying program is executed in the washing machine.

Disclosure of Invention

The application provides a washing machine and a control method thereof, which are used for correcting the maximum value of the rotating speed of a dehydration program in real time according to the weight of clothes in the process of executing the dehydration program by the washing machine, can avoid the problems of overlong dehydration time, drum collision and the like of the washing machine, and obtain better dehydration effect.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a washing machine comprising:

a box body;

a cartridge assembly;

a weight sensor for detecting the weight of the laundry within the drum assembly;

a controller electrically connected with the weight sensor and configured to:

acquiring the weight of the clothes after the washing machine executes the pre-dehydration program through a weight sensor;

determining the maximum value of the rotating speed of the dehydration program according to the weight of the clothes after the pre-dehydration program is executed by the washing machine;

acquiring the weight of clothes of the washing machine after the washing machine finishes the ith stage of the dehydration program in the process of executing the dehydration program;

according to the weight of clothes in the i stage of the dewatering program executed by the washing machine, the maximum value of the rotating speed of the dewatering program is adjusted.

The technical scheme provided by the embodiment of the application at least has the following beneficial effects: compared with the manner of determining the maximum value of the rotation speed according to the weight of the clothes just before the dehydration in the related art, the embodiment of the application re-determines the weight of the clothes during the dehydration process, such as the ith stage of the dehydration program, and corrects the maximum value of the rotation speed of the dehydration program based on the re-determined weight of the clothes. Since the corrected maximum value of the rotating speed is more consistent with the current dehydration condition than the maximum value of the rotating speed determined before dehydration, the dehydration program can be continuously executed based on the corrected maximum value of the rotating speed, thereby avoiding the problems of unbalanced rotation, overlong dehydration time and the like of the washing machine drum assembly caused by the change of the weight of the clothes during overlong dehydration, and obtaining better dehydration effect.

In some embodiments, the controller of the washing machine is configured to obtain the weight of the laundry after the washing machine performs the i-th stage of the dehydration procedure, and specifically performs the following steps: acquiring the weight of clothes before water is fed into the washing machine, the weight of the clothes of the washing machine in the (i-1) th stage after the washing machine executes a dehydration program, and the rotating speed of the washing machine in the (i) th stage after the washing machine executes the dehydration program; determining the weight of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program according to the weight of the clothes before the washing machine enters water and the weight of the clothes when the washing machine finishes the i-1 stage of the dehydration program; determining a dehydration loss rate when the washing machine finishes the ith stage of the dehydration program according to the rotating speed of the washing machine after finishing the ith stage of the dehydration program, wherein the dehydration loss rate is used for indicating the weight of moisture thrown out of the clothes to the weight of the moisture in the clothes; and determining the weight of the clothes of the washing machine in the ith stage of the dehydration program according to the weight of the clothes of the washing machine in the ith-1 stage of the dehydration program, the weight of water in the clothes of the washing machine in the ith-1 stage of the dehydration program and the dehydration loss rate. The technical scheme that this application provided divides into a plurality of stages with washing machine's dehydration, through the clothing weight that obtains each stage and washing machine's rotational speed, takes into account the condition that the clothing weight changes that leads to clothing weight to be thrown away along with moisture in the dehydration. Therefore, the weight of the clothes in the dehydration process can be accurately acquired in real time, the maximum value of the rotating speed of the dehydration program obtained by correction is more accurate according to the weight of the clothes in the dehydration process, and a better clothes dehydration effect can be obtained.

In some embodiments, the laundry weight of the laundry machine after performing the ith stage of the dehydration process satisfies the following relationship: m is a group of_i＝M_i-1-M_s×Y_i. Wherein M is_iWeight of laundry, M, indicating the laundry machine has performed the i-th stage of the spin-drying process_i-1Weight of laundry M representing the laundry weight at the i-1 stage of the dehydration process performed by the washing machine_sIndicating the weight of water in the laundry at the i-1 stage of the spin-drying process, Y_iThe spin-drying loss rate of the washing machine after the I stage of the spin-drying program is shown. Therefore, the weight of the clothes in a certain stage of the dehydration process can be accurately obtained in real time, and the maximum value of the subsequently determined dehydration program can also obtain a better dehydration effect.

In some embodiments, the controller of the washing machine is configured to: determining the dehydration loss rate of the washing machine after the washing machine finishes the ith stage of the dehydration program according to the rotating speed of the washing machine after the washing machine finishes the ith stage of the dehydration program, and specifically executing the following steps: obtaining the material of clothes; and determining the dehydration loss rate of the washing machine after the washing machine finishes the ith stage of the dehydration program according to the rotating speed and the clothes material which are reached when the washing machine finishes the ith stage of the dehydration program. Therefore, the clothes material and the rotating speed are simultaneously considered, the obtained dehydration loss rate is more accurate, and the clothes weight obtained through subsequent calculation is more accurate.

In some embodiments, the controller of the washing machine is further configured to: acquiring the weight and the material of clothes before water enters the washing machine; determining the water absorption rate of the clothes according to the material of the clothes; and determining the water inflow according to the weight of the clothes before the washing machine enters water and the water absorption rate of the clothes. Therefore, the washing machine can determine the water inflow required by washing more accurately according to the weight and the material of clothes before water inflow, the water supplementing times in the subsequent washing process can be reduced relatively, the overall washing time can be reduced, and the washing efficiency of the washing machine can be improved.

In a second aspect, the present application provides a control method of a washing machine, including: acquiring the weight of the clothes after the washing machine executes the pre-dehydration program through a weight sensor; determining the maximum value of the rotating speed of the dehydration program according to the weight of the clothes after the pre-dehydration program is executed by the washing machine; acquiring the weight of clothes of the washing machine after the washing machine finishes the ith stage of the dehydration program in the process of executing the dehydration program; according to the weight of clothes in the i stage of the dewatering program executed by the washing machine, the maximum value of the rotating speed of the dewatering program is adjusted.

In some embodiments, obtaining the weight of the laundry after the washing machine performs the i-th stage of the spin-drying process includes: acquiring the weight of clothes before water is fed into the washing machine, the weight of the clothes of the washing machine in the (i-1) th stage after the washing machine executes a dehydration program, and the rotating speed of the washing machine in the (i) th stage after the washing machine executes the dehydration program; determining the weight of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program according to the weight of the clothes before the washing machine enters water and the weight of the clothes when the washing machine finishes the i-1 stage of the dehydration program; determining a dehydration loss rate when the washing machine finishes the ith stage of the dehydration program according to the rotating speed of the washing machine after finishing the ith stage of the dehydration program, wherein the dehydration loss rate is used for indicating the weight of moisture thrown out of the clothes to the weight of the moisture in the clothes; and determining the weight of the clothes of the washing machine in the ith stage of the dehydration program according to the weight of the clothes of the washing machine in the ith-1 stage of the dehydration program, the weight of water in the clothes of the washing machine in the ith-1 stage of the dehydration program and the dehydration loss rate.

In some embodiments, the laundry weight of the washing machine after the i-th stage of the dehydration process satisfies the following relationship: m is a group of_i＝M_i-1-M_s×Y_i. Wherein, M_iWeight of laundry M representing the laundry weight at the i-th stage of the spin-drying process performed by the washing machine_i-1Weight of laundry at stage i-1 of the spin-drying process, M_sRepresents the weight of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program, Y_iIndicating the washing machine has finished the i stage of the dewatering programThe dehydration loss rate.

In some embodiments, determining the spin-drying loss rate of the washing machine after the washing machine performs the ith stage of the spin-drying program according to the rotation speed of the washing machine after the washing machine performs the ith stage of the spin-drying program specifically includes: obtaining the material of clothes; and determining the dehydration loss rate of the washing machine after the washing machine executes the ith stage of the dehydration program according to the rotating speed and the clothes material which are reached by the washing machine after the washing machine executes the ith stage of the dehydration program.

In some embodiments, the control method of the washing machine further includes: acquiring the weight and the material of clothes before water enters the washing machine; determining the water absorption rate of the clothes according to the material of the clothes; and determining the water inflow according to the weight of the clothes before water is fed into the washing machine and the water absorption rate of the clothes.

In a third aspect, embodiments of the present application provide a computer-readable storage medium having stored therein instructions that, when run on any one of the above apparatuses, cause the apparatus to execute a control method of any one of the above washing machines.

In a fourth aspect, an embodiment of the present application provides a chip, including: a processor and a memory; the memory is used for storing computer execution instructions, the processor is connected with the memory, and when the chip runs, the processor executes the computer execution instructions stored by the memory so as to enable the chip to execute the control method of any one of the washing machines.

In a fifth aspect, embodiments of the present application provide a computer program product containing instructions that, when run on any one of the above apparatuses, cause the apparatus to perform any one of the above washing machine control methods.

In the embodiments of the present application, the names of the components of the above-mentioned apparatus do not limit the apparatus itself, and in practical implementations, these components may appear by other names. As long as the functions of the respective components are similar to those of the embodiments of the present application, they are within the scope of the claims of the present application and their equivalents.

In addition, the technical effects brought by any one of the design methods of the second aspect to the fifth aspect can be referred to the technical effects brought by the different design methods of the first aspect, and are not described herein again.

Drawings

Fig. 1 is a first mechanical structure diagram of a washing machine according to an embodiment of the present disclosure;

fig. 2 is a schematic mechanical structure diagram of a washing machine according to an embodiment of the present disclosure;

fig. 3 is a schematic mechanical structure diagram of a washing machine according to an embodiment of the present disclosure;

fig. 4 is a schematic mechanical structure diagram of a washing machine according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of a circuit architecture of a washing machine according to an embodiment of the present disclosure;

fig. 6 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present disclosure;

fig. 7 is a schematic flow chart of a washing machine running a dewatering process according to an embodiment of the present application;

FIG. 8 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present disclosure;

fig. 9 is a flowchart illustrating a control method of a further washing machine according to an embodiment of the present disclosure;

fig. 10 is a schematic hardware structure diagram of a controller according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connected" are used in this application to have a meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The washing machine is an electric appliance which is necessary for families daily, and the invention of the washing machine enables daily life of users to be more convenient. Over the long run, many types have emerged, the most common being drum washing machines.

The washing principle of the drum-type washing machine is that a wooden club is simulated to strike clothes, the washing principle is controlled by a mechanized program, centrifugal force is generated when the drum rotates, the clothes are lifted to the highest position by the centrifugal force and the lifting ribs, the clothes fall by gravity, the beating effect is achieved, and the washing principle and the water action are repeatedly driven to clean the clothes. And finally, dehydrating by using the centrifugal force generated by the high-speed rotation of the washing machine barrel assembly to finish washing.

In the process of running the dehydration program in the washing machine, moisture contained in clothes is thrown out continuously, the weight of the clothes can also change, the existing washing machine only weighs the clothes once, the working parameters of the dehydration program cannot be adjusted in real time according to the change of the weight of the clothes, and the dehydration effect is poor.

In view of this, an embodiment of the present application provides a washing machine, where a controller of the washing machine may obtain weight of laundry in a dehydration process through a weight sensor, and correct an upper limit value of a rotation speed of a running dehydration program of the washing machine in real time according to the weight of the laundry, so as to avoid situations such as dehydration delay, tub-hitting displacement, and the like of the washing machine, and improve use experience of a user on the washing machine.

As shown in fig. 1, the washing machine 10 may include one or more of the following: case 11, cartridge assembly 12, motor 13 (not shown), spring 14 (not shown), damper 15 (not shown), weight sensor 16 (not shown), water intake system 17 (not shown), water discharge system 18, and display 19.

In some embodiments, the cabinet 11 may form an overall appearance of the washing machine 10 and close a passage for contact between the inside and the outside of the washing machine, thereby preventing damage to electric components.

In some embodiments, the door 111 may be rotatably disposed on the cabinet 11, and the access of the laundry in the washing machine 10 is achieved by opening and closing the door 111.

In some embodiments, the observation window 112 is disposed on the door 111 for observing the washing condition of the laundry in the washing machine. The observation window 112 is usually made of transparent glass, and through the transparent glass of the observation window 112, a user can clearly see the washing condition of the clothes in the washing machine, so that the user can conveniently confirm whether the washing machine is in a normal operation state. Optionally, the transparent glass of the observation window 112 may adopt a multilayer structure, which has heat insulation and sound insulation effects, and meets various requirements of users.

In some embodiments, the detergent box 113 may be disposed at a detergent dispensing opening formed on the cabinet 11 in a drawable manner. After the user pulls the detergent 113 out of the detergent input port, the user can pour the detergent (laundry detergent, softener, etc.) into the detergent box 113 from the detergent input port. In the orientation shown in fig. 1, the detergent inlet is opened in the front panel of the cabinet 11, and the detergent box 113 is formed in a rectangular parallelepiped shape.

In some embodiments, the cartridge assembly 12 is disposed inside the cabinet 11 for performing a function of washing laundry in the washing machine.

In some embodiments, the cartridge assembly 12 comprises an inner cartridge 121 and an outer cartridge 122. The inner drum 121 is used for containing clothes, and the inner drum 121 includes dehydration holes. The tub 122 may be used to store wash water. When both the drain system and the door are closed, since the outer tub 122 does not include other drain outlets, the washing water may be temporarily stored in the outer tub 122.

In some embodiments, the motor 13 is disposed inside the cabinet 11 and directly connected to the inner drum 121 for driving the inner drum 121 to rotate, thereby realizing low-speed rotation during washing and rinsing and high-speed rotation during dehydration.

In some embodiments, a spring 14 is used to connect the outer wall of the outer barrel 122 to the upper portion of the inner wall of the housing 11, providing a dampening effect on the movement of the cartridge assembly 12. The spring 14 includes a first spring 141 and a second spring 142, and as shown in fig. 2, the first spring and the second spring have the same stiffness and are symmetrically disposed on the left and right sides of the outer cylinder.

Optionally, the spring 14 further comprises a third spring 143. As shown in fig. 3, the third spring 143 is provided directly above the outer cylinder 122 to connect the outer wall of the outer cylinder 122 and the inside of the upper cover of the case 11.

In some embodiments, a shock absorber 15 is provided in a lower region of the interior of the tank 11. Wherein, the two ends of the damper 15 are respectively connected with the outer wall of the outer cylinder 122 and the inner wall of the box body 11, and have a buffer effect on the movement of the cylinder assembly. Through the combined action of the spring 14 and the damper 15, the movement of the washing machine barrel assembly 12 is damped, and the stable operation of the washing machine 10 is ensured.

In some embodiments, a weight sensor 16 is used to measure the weight of the laundry within the washing machine drum assembly. After clothes are put into the barrel assembly of the washing machine, the weight sensor is deformed due to the change of the pulling force applied to the weight sensor, the electric signal output by the weight sensor is also changed, and the controller of the washing machine receives the changed electric signal and processes the electric signal output by the weight sensor to obtain data information which can be identified by the controller. The controller then performs zero clearing processing on the data according to the weight of the drum assembly borne by the weight sensor, so that the weight obtained by the weight sensor is only the weight of the clothes in the drum assembly.

In some embodiments, a weight sensor 16 may be provided at the junction of the spring 14 and the housing 11. For example, as shown in fig. 4, the weight sensor 16 is provided at the connection of the first spring 141 and the case 11.

In other embodiments, the weight sensor 16 may be disposed at the junction of the spring 14 and the outer barrel 122.

For example, as shown in fig. 2, the weight sensor 16 is provided at the junction of the first spring 141 and the outer cylinder 122. In this case, the weight of the laundry in the drum assembly can be determined based on the weight measured by the weight sensor, the angle of the first spring with respect to the vertical direction, and the weight of the drum assembly. Specifically, the relationship among the weight M1 measured by the weight sensor, the included angle α between the first spring and the vertical direction, the weight M0 of the drum assembly, and the weight M of the laundry in the drum assembly is as follows: m1= (M0 + M)/2 cos α.

For another example, as shown in fig. 3, the weight sensor 16 is provided at the junction of the third spring 143 and the outer cylinder 122. In this case, the weight of the laundry in the drum assembly can be determined based on the weight measured by the weight sensor, the stiffness of the first and second springs, the stiffness of the third spring, and the weight of the drum assembly. Specifically, the relationship among the weight M1 measured by the weight sensor, the stiffness S1 of the first and second springs, the stiffness S2 of the third spring, the weight M0 of the drum assembly, and the weight M of the laundry inside the drum assembly is: m1= (M0 + M) S2/(2S 1+ S2).

In some embodiments, the water inlet system 17 includes a water inlet, a water inlet valve, a water inlet pipe, and the like for controlling water flow into the drum assembly when water inflow is required for the washing machine, so that the washing machine can normally perform a washing process.

In some embodiments, the drain system 18 includes a drain valve, a drain line, etc. for discharging water smoothly when the washing machine requires draining.

In some embodiments, the display 19 may be a liquid crystal display, an organic light-emitting diode (OLED) display. The particular type, size, resolution, etc. of the display are not limiting, and those skilled in the art will appreciate that the display may be modified in its performance and configuration as desired. The display 19 may be used to display a control panel of the washing machine. The washing machine may feed back a current state of the washing machine, such as being in a washing state or a dehydrating state, etc., through the display.

Fig. 5 is a schematic diagram illustrating the circuit architecture of the washing machine 10.

As shown in fig. 5, the washing machine 10 may further include: the device comprises a controller 20, a water level sensor 21, a load eccentricity detection device 22, a communication device 23, a man-machine interaction device 24 and a power supply 25. The motor 13, the weight sensor 16, the water inlet system 17, the water discharge system 18, the display 19, the water level sensor 21, the load eccentricity detection device 22, the communication device 23, the human-computer interaction device 24 and the power supply 25 are all connected with the controller 20.

In some embodiments, the controller 20 refers to a device that can generate an operation control signal instructing the washing machine 10 to execute a control instruction according to the instruction operation code and the timing signal. Illustratively, the controller 20 may be a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The controller may also be other devices with processing functions, such as a circuit, a device, or a software module, which is not limited in any way by the embodiments of the present application.

In some embodiments, the water level sensor 21 refers to a device capable of detecting the water level in the washing tub and converting the detected water level into a usable output signal. In some embodiments of the present application, the water level sensor 21 may be used to obtain the water level in the washing machine, and when the water level in the washing machine is lower than a preset water level, the controller controls the water inlet system to start to supply water to replenish the water in the washing machine.

In some embodiments, the load eccentricity detection device 22 is used to obtain the unbalance (OOB) value of the laundry in the washing machine at different rotation speeds. By acquiring the OOB value of the washing machine, the upper limit of the rotating speed of the motor for operating the dehydration program of the washing machine can be adjusted according to the OOB value and the weight of clothes in the washing machine, so that the washing machine can operate the dehydration program more stably.

In some embodiments, the communication device 23 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communication device may include at least one of a Wi-Fi chip, a bluetooth communication protocol chip, a wired ethernet communication protocol chip, or other network communication protocol chip or near field communication protocol chip, and an infrared receiver. The washing machine 10 may transmit control signals and data signals with a terminal device used by a user through the communication means 23. For example, the washing machine 10 receives a start instruction from the terminal device through the communication device 23, and the controller 20 of the washing machine 10 controls the washing machine to start washing laundry according to the start instruction.

In some embodiments, a human interaction device 24 is used to enable interaction between a user and the washing machine 10. The human interaction device 24 may comprise one or more of a physical key or a touch-sensitive display panel. For example, a user may manually start the washing machine through the human-computer interaction device 24, or set a washing program for operating the washing machine 10 through the human-computer interaction device 24.

In some embodiments, a power supply 25 is provided to provide electrical support for the operation of the various electrical components of the washing machine 10 under the control of the controller 20. The power supply 25 may include a battery and associated control circuitry.

It is to be understood that the illustrated structure of the embodiment of the present invention does not constitute a specific limitation to the washing machine. In other embodiments of the present application, a washing machine may include more or fewer components than shown, or some components may be combined, some components may be separated, or a different arrangement of components may be used. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The following detailed description of the embodiments of the present application is made with reference to the accompanying drawings.

An embodiment of the present application provides a control method of a washing machine, as shown in fig. 6, the method including the steps of:

s101, the controller acquires the weight of the clothes after the washing machine executes the pre-dehydration program through the weight sensor.

In some embodiments, the washing machine runs a pre-dehydration process after the washing machine performs a rinsing process and discharges moisture inside the cartridge assembly. The rotating speed of the washing machine during the pre-dehydration program is less than the minimum resonance rotating speed of the washing machine, so that the moisture absorbed in the clothes can be thrown out as much as possible, and the range of the resonance rotating speed of the washing machine is determined by the resonance characteristic of the washing machine.

S102, according to the weight of the clothes after the washing machine executes the pre-dehydration program, the controller determines the maximum value of the rotating speed of the dehydration program.

In some embodiments, there is a correspondence between the weight of the laundry within the washing machine and the maximum value of the rotation speed of the spin-drying program. The controller of the washing machine determines the maximum value of the rotation speed of the dehydration program according to the weight of the clothes after the washing machine executes the pre-dehydration program and the corresponding relation between the weight of the clothes in the washing machine and the maximum value of the rotation speed of the dehydration program, and starts to operate the dehydration program.

S103, in the process of executing the dehydration program, the controller acquires the weight of the clothes of the washing machine after the I stage of the dehydration program is executed.

In the embodiment of the application, the washing machine runs a dehydration program comprising a plurality of dehydration stages. The division of the dehydration stage can be divided at regular time intervals, for example, every 3 min. Alternatively, the division of the dehydration stage may be divided at regular intervals of rotation speed, for example, every 5rpm of rotation speed is increased to a dehydration stage.

S104, according to the weight of the clothes in the i stage of the dewatering program executed by the washing machine, the controller adjusts the maximum value of the rotating speed of the dewatering program.

In some embodiments, the controller of the washing machine may adjust the maximum value of the spin rate of the spin-drying program according to the weight of the laundry after the i-th stage of the spin-drying program of the washing machine and the OOB value of the laundry in the washing machine at the current spin rate. For example, the rotation speed of the washing machine after the i-th stage of the spin-drying program is 300rpm, the maximum value of the rotation speed of the spin-drying program determined by the controller according to the OOB value of the laundry in the washing machine measured at the current rotation speed and the weight of the laundry after the i-th stage of the spin-drying program is 800rpm, and the rotation speed of the washing machine for running the spin-drying program is gradually increased to 800rpm, and the spin-drying program is stopped.

Alternatively, the weight of the laundry in the spin-drying process of the washing machine may be divided into a plurality of weight sections, and the different weight sections correspond to the maximum values of the rotation speeds of the different spin-drying processes. For example, if the maximum value of the rotation speed of the corresponding spin-drying program is 600rpm when the laundry weight interval is [5,5.5] kg, the maximum value of the rotation speed of the spin-drying program is not changed when the laundry weight of the washing machine after the i-th stage of the spin-drying program is reduced from 5.4kg to 5.1 kg.

It should be understood that when the rotation speed is gradually increased, the water content in the laundry will tend to be stable, the weight of the laundry also tends to be stable, the maximum value of the spin-drying course determined according to the weight of the laundry will not change, and when the rotation speed of the washing machine is gradually increased to the maximum value of the rotation speed, that is, the trigger condition for the washing machine to finish the spin-drying course is reached, the washing machine stops operating.

The technical solution shown in fig. 6 brings at least the following beneficial effects: compared with the manner of determining the maximum value of the rotation speed according to the weight of the clothes just before the dehydration in the related art, the embodiment of the application re-determines the weight of the clothes during the dehydration process, such as the ith stage of the dehydration program, and corrects the maximum value of the rotation speed of the dehydration program based on the re-determined weight of the clothes. Since the corrected maximum value of the rotating speed is more consistent with the current dehydration condition than the maximum value of the rotating speed determined before dehydration, the dehydration program can be continuously executed based on the corrected maximum value of the rotating speed, thereby avoiding the problems of unbalanced rotation, overlong dehydration time and the like of the washing machine drum assembly caused by the change of the weight of the clothes during overlong dehydration, and obtaining better dehydration effect.

In the following, taking the washing machine determining the maximum value of the rotation speed of the spin-drying program according to the weight of the laundry during the spin-drying process and the OOB value corresponding to the current rotation speed as an example, the control flow of the washing machine during the spin-drying program will be exemplarily described.

As shown in fig. 7, after the washing machine operates to complete the rinsing process, the spin-drying process starts:

(1) And running a pre-dehydration program. By operating the pre-dehydration process, the moisture in the laundry is thrown out as much as possible, and the measured weight of the laundry is closer to the weight of the laundry before the water is introduced.

(2) The weight of the laundry after the pre-dehydration process is performed by the washing machine is acquired.

(3) Judging the weight interval of the clothes.

(4) And acquiring the current rotating speed, and determining the OOB detection value corresponding to the current rotating speed.

(5) And determining the maximum value of the spin-drying program rotating speed according to the weight interval of the clothes and the OOB detection value.

(6) And finishing the dewatering when the rotating speed of the dewatering program reaches the maximum value.

In some embodiments, as shown in fig. 8, step S103 may be implemented as the following steps:

s201, the controller obtains the weight of clothes before water is fed into the washing machine, the weight of the clothes in the i-1 th stage of the dewatering program executed by the washing machine, and the rotating speed of the washing machine in the i-th stage of the dewatering program executed by the washing machine.

The weight of the clothes before water is fed into the washing machine can be measured by a weight sensor, and the rotating speed of the washing machine in a certain stage of a dewatering program can be measured by a motor.

S202, according to the weight of the clothes before the washing machine enters water and the weight of the clothes in the i-1 th stage of the washing machine after the washing machine executes the dehydration program, the controller determines the weight of water in the clothes when the washing machine executes the i-1 th stage of the dehydration program.

In some embodiments, the weight of the laundry before the water is introduced into the washing machine is the weight of the laundry without water, and the weight of the water in the laundry after the washing machine performs the i-1 stage of the dehydration procedure is obtained by subtracting the weight of the laundry before the water is introduced into the washing machine from the weight of the laundry after the washing machine performs the i-1 stage of the dehydration procedure. For example, if the weight of the laundry before the water is introduced into the washing machine is 5kg, the weight of the laundry after the washing machine performs the i-1 stage of the dehydration process is 8kg, and the weight of the moisture in the laundry after the washing machine performs the i-1 stage of the dehydration process is 3kg.

And S203, determining the dehydration loss rate of the washing machine in the ith stage of the dehydration program according to the rotating speed of the washing machine in the ith stage of the dehydration program.

Wherein the spin-off rate is used to represent the weight of moisture thrown off the laundry as a percentage of the weight of moisture in the laundry.

It should be understood that the greater the rotation speed of the washing machine performing the dehydration process, the more moisture contained in the laundry is spun out, i.e., the greater the dehydration loss rate.

Optionally, when the material of the clothes changes, the dehydration loss rate also changes.

Optionally, the dehydration loss rate corresponding to different rotation speeds and different clothes materials may be a constant or may be nonlinear data.

Optionally, the dehydration loss rate corresponding to different rotation speeds and different clothes materials can be calculated by technicians through a large number of experiments in the delivery stage.

In some embodiments, the controller may further determine the spin-drying loss rate of the washing machine after the i-th stage of the spin-drying program according to the material of the laundry and the rotation speed reached by the washing machine after the i-th stage of the spin-drying program. Therefore, the clothes material and the rotating speed are simultaneously considered, the obtained dehydration loss rate is more accurate, and the clothes weight obtained through subsequent calculation is more accurate.

S204, according to the weight of the clothes in the i-1 stage of the washing machine after the washing machine finishes executing the dehydration program, the weight of water in the clothes when the washing machine finishes executing the i-1 stage of the dehydration program and the dehydration loss rate, the controller determines the weight of the clothes in the i-stage of the washing machine after executing the dehydration program.

Wherein the washing machine performs the laundry weight M of the i-th stage of the dehydration process_iThe weight M of the clothes in the i-1 stage of the dewatering program executed by the washing machine_i-1The weight M of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program_sAnd the dehydration loss rate Y of the washing machine after the I stage of the dehydration program_iThe relationship between can be expressed as M_i＝M_i-1-M_s×Y_i。

It should be understood that the laundry weight at the 0 th stage of the dehydration process is the laundry weight after the washing machine performs the pre-dehydration process.

The technical solution shown in fig. 8 brings at least the following beneficial effects: the technical scheme that this application provided divides into a plurality of stages with washing machine's dehydration, through the clothing weight that obtains each stage and washing machine's rotational speed, takes into account the condition that the clothing weight changes that leads to clothing weight to be thrown away along with moisture in the dehydration. Therefore, the weight of the clothes in the dehydration process can be accurately acquired in real time, the maximum value of the rotating speed of the dehydration program obtained by correction is more accurate according to the weight of the clothes in the dehydration process, and a better clothes dehydration effect can be obtained.

In some embodiments, before the washing machine starts to feed water, the washing machine may determine the water feed amount according to the weight of the laundry in the drum assembly and the material of the laundry put in by the user. As shown in fig. 9, an embodiment of the present application further provides a control method of a washing machine, including the steps of:

s301, the controller obtains the weight and the material of the clothes before water enters the washing machine.

The weight of the clothes before water is supplied to the washing machine can be measured by the weight sensor, and the specific measuring method is as described above and will not be described herein.

Optionally, the controller obtains the material of the clothes, and may be implemented in any one of the following manners:

mode 1, the washing machine can collect images in the barrel assembly by installing an image collecting device in the washing machine, and the images in the barrel assembly are subjected to image recognition to determine the material of clothes.

Mode 2, the washing machine receives the setting operation of the user on the clothes material; in response to the operation, the washing machine determines the laundry material.

S302, according to the clothes material, the controller determines the water absorption rate of the clothes.

Wherein the water absorption of the garment indicates the ability of the garment to absorb water at standard atmospheric pressure, expressed as a percentage.

For example, the material of the clothing may be one or a combination of more of silk, cotton, linen, synthetic fiber, etc., which is not limited herein.

It will be appreciated that garments of different materials will absorb different amounts of water, and will absorb different amounts of water. For example, the water absorption of silk is higher than that of synthetic fibers, and for silk and synthetic fibers of the same weight, the water content of silk is higher than that of synthetic fibers after water absorption. Therefore, when the water absorption of the clothes put into the washing machine by the user is high, the amount of water required to be input into the washing machine is increased correspondingly.

Optionally, the water absorption rates of different clothes materials can be obtained by technicians through a large number of experimental calculations in the factory leaving stage.

And S303, determining the water inflow by the controller according to the weight of the clothes before the washing machine enters water and the water absorption rate of the clothes.

Wherein, the weight M of the clothes before the water is fed into the washing machine₀The relation between the water absorption rate rho of the clothes and the water inflow V is as follows: v = M₀×ρ。

Optionally, if water storage V is left in the washing machine₁Then the controller controls the washing machine according to the weight M of the clothes before water is supplied to the washing machine₀And water absorption rho of the clothes, and determining the water inflow of the washing machine as V = M₀×ρ+V₁。

The technical solution shown in fig. 9 brings at least the following beneficial effects: the washing machine can determine the water inflow required by washing more accurately according to the weight and the material of clothes before water inflow, the water supplementing times in the subsequent washing process can be relatively reduced, the overall washing time can be reduced, and the washing efficiency of the washing machine is improved.

It can be seen that the foregoing describes the solution provided by the embodiments of the present application primarily from a methodological perspective. In order to implement the functions, the embodiments of the present application provide corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiment of the present application, the controller may be divided into function modules according to the method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

The embodiment of the present application further provides a schematic diagram of a hardware structure of a controller, as shown in fig. 10, the controller 400 includes a processor 401, and optionally, further includes a memory 402 and a communication interface 403, which are connected to the processor 401. The processor 401, memory 402 and communication interface 403 are connected by a bus 404.

The processor 401 may be a Central Processing Unit (CPU), a general purpose processor Network (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor 401 may also be any other device with processing functionality such as a circuit, a device or a software module. The processor 401 may also include multiple CPUs, and the processor 401 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores that process data, such as computer program instructions.

The memory 402 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a Random Access Memory (RAM) or other types of dynamic storage devices that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, which are not limited in this embodiment. The memory 402 may be separate or integrated with the processor 401. The memory 402 may have computer program code embodied therein. The processor 401 is configured to execute the computer program code stored in the memory 402, so as to implement the control method provided by the embodiment of the present application.

Communication interface 403 may be used to communicate with other devices or communication networks (e.g., ethernet, radio Access Network (RAN), wireless Local Area Networks (WLAN), etc.. Communication interface 403 may be a module, circuitry, transceiver, or any device capable of communicating.

The bus 404 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 404 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 10, but this is not intended to represent only one bus or type of bus.

The embodiment of the present application also provides a computer-readable storage medium, which includes computer-executable instructions, and when the computer-executable instructions run on a computer, the computer is enabled to execute the control method of any one of the washing machines provided in the above embodiments.

The embodiment of the application also provides a computer program product containing computer execution instructions, which when run on a computer, causes the computer to execute the control method of any one of the washing machines provided by the above embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer-executable instructions. The processes or functions according to the embodiments of the present application are generated in whole or in part when the computer-executable instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer executable instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer executable instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer-readable storage media can be any available media that can be accessed by a computer or can comprise one or more data storage devices, such as servers, data centers, and the like, that can be integrated with the media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations may be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A washing machine, characterized by comprising:

a box body;

a cartridge assembly;

a weight sensor for detecting a weight of the laundry within the drum assembly;

a controller electrically connected to the weight sensor and configured to:

acquiring the weight of the clothes of the washing machine after the pre-dehydration program is executed through the weight sensor;

determining the maximum value of the rotating speed of the dehydration program according to the weight of the clothes after the washing machine executes the pre-dehydration program;

acquiring the weight of the clothes of the washing machine after the washing machine finishes the ith stage of the dehydration program in the process of executing the dehydration program;

and adjusting the maximum value of the rotating speed of the dehydration program according to the weight of the clothes of the washing machine after the ith stage of the dehydration program.

2. The washing machine as claimed in claim 1, wherein the controller is configured to: acquiring the weight of clothes of the washing machine after the washing machine executes the ith stage of a dehydration program, and specifically executing the following steps:

acquiring the weight of clothes before water is fed into the washing machine, the weight of clothes in the i-1 stage of a dehydration program executed by the washing machine, and the rotating speed of the washing machine in the i stage of the dehydration program executed by the washing machine;

determining the weight of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program according to the weight of the clothes before the washing machine enters water and the weight of the clothes when the washing machine finishes the i-1 stage of the dehydration program;

determining a dehydration loss rate when the washing machine finishes the ith stage of the dehydration program according to the rotating speed of the washing machine after finishing the ith stage of the dehydration program, wherein the dehydration loss rate is used for representing the weight of moisture thrown out of the clothes to the weight of the moisture in the clothes;

and determining the weight of the clothes of the washing machine after the i-1 stage of the dehydration program is executed according to the weight of the clothes of the washing machine after the i-1 stage of the dehydration program is executed, the weight of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program, and the dehydration loss rate.

3. The washing machine as claimed in claim 2, wherein the weight of the laundry after the washing machine performs the i-th stage of the dehydration process satisfies the following relationship:

M_i＝M_i-1-M_s×Y_i；

wherein M is_iWeight of laundry, M, representing the laundry machine after the i-th stage of the spin-drying program_i-1Weight of laundry M representing the laundry weight at the i-1 stage of the dehydration process performed by the washing machine_sRepresents the weight of water in the clothes when the washing machine finishes the i-1 stage of the dewatering program, Y_iIndicating that said washing machine has completed the i-th stage of the spin-drying cycleDehydration loss rate.

4. The washing machine as claimed in claim 2, wherein the controller is configured to: determining the dehydration loss rate of the washing machine after the washing machine finishes the ith stage of the dehydration program according to the rotating speed of the washing machine after the washing machine finishes the ith stage of the dehydration program, and specifically executing the following steps:

obtaining the material of clothes;

and determining the dehydration loss rate of the washing machine after the washing machine executes the ith stage of the dehydration program according to the rotating speed reached by the washing machine after the washing machine executes the ith stage of the dehydration program and the material of the clothes.

5. The washing machine as claimed in any one of claims 1 to 4, wherein the controller is further configured to:

acquiring the weight of the clothes and the material of the clothes before water enters the washing machine;

determining the water absorption rate of the clothes according to the material of the clothes;

and determining the water inflow according to the weight of the clothes before the washing machine enters water and the water absorption rate of the clothes.

6. A control method of a washing machine, comprising:

acquiring the weight of the clothes of the washing machine after the pre-dehydration program is executed through a weight sensor;

determining the maximum value of the rotating speed of the dehydration program according to the weight of the clothes after the washing machine executes the pre-dehydration program;

acquiring the weight of the clothes of the washing machine after the washing machine finishes the ith stage of the dehydration program in the process of executing the dehydration program;

and adjusting the maximum value of the rotating speed of the dehydration program according to the weight of the clothes of the washing machine after the ith stage of the dehydration program.

7. The method according to claim 6, wherein the obtaining of the laundry weight of the washing machine after the i-th stage of the dehydration process comprises:

acquiring the weight of clothes before water is fed into the washing machine, the weight of the clothes of the washing machine after the washing machine executes the i-1 stage of a dehydration program, and the rotating speed of the washing machine after the washing machine executes the i stage of the dehydration program;

determining the weight of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program according to the weight of the clothes before the washing machine enters water and the weight of the clothes when the washing machine finishes the i-1 stage of the dehydration program;

determining a dehydration loss rate when the washing machine finishes the ith stage of the dehydration program according to the rotating speed of the washing machine after finishing the ith stage of the dehydration program, wherein the dehydration loss rate is used for representing the weight of moisture thrown out of the clothes to the weight of the moisture in the clothes;

and determining the weight of the clothes of the washing machine after the i-1 stage of the dehydration program is executed according to the weight of the clothes of the washing machine after the i-1 stage of the dehydration program is executed, the weight of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program, and the dehydration loss rate.

8. The method according to claim 7, wherein the laundry machine performs the laundry weight of the ith stage of the dehydration process satisfying the following relationship:

M_i＝M_i-1-M_s×Y_i；

wherein, M_iWeight of laundry M representing the laundry weight of the washing machine after the i-th stage of the spin-drying process_i-1Weight of laundry M representing the laundry machine after the spin-drying process of the i-1 stage_sRepresents the weight of water in the clothes when the washing machine finishes the i-1 stage of the dehydration program, Y_iRepresents the dehydration loss rate when the washing machine finishes the i stage of the dehydration program.

9. The method according to claim 7, wherein determining the spin-drying loss rate of the washing machine after the washing machine performs the ith stage of the spin-drying program according to the rotation speed of the washing machine after the washing machine performs the ith stage of the spin-drying program comprises:

obtaining the material of clothes;

and determining the dehydration loss rate of the washing machine after the washing machine executes the ith stage of the dehydration program according to the rotating speed reached by the washing machine after the washing machine executes the ith stage of the dehydration program and the material of the clothes.

10. The method according to any one of claims 6 to 9, further comprising:

acquiring the weight of the clothes before water is fed into the washing machine and the material of the clothes;

determining the water absorption rate of the clothes according to the material of the clothes;

and determining the water inflow according to the weight of the clothes before the washing machine enters water and the water absorption rate of the clothes.

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