WO2022001010A1

WO2022001010A1 - Control method and control apparatus for laundry treatment device, and laundry treating device

Info

Publication number: WO2022001010A1
Application number: PCT/CN2020/135036
Authority: WO
Inventors: 付俊永; 秦向南; 陈辉
Original assignee: 美的威灵电机技术（上海）有限公司; 淮安威灵电机制造有限公司
Priority date: 2020-06-30
Filing date: 2020-12-09
Publication date: 2022-01-06
Also published as: CN113862959A; CN113862959B

Abstract

A control method and control apparatus for a laundry treatment device, and a laundry treatment device. The control method for the laundry treatment device comprises: receiving an eccentricity detection signal (102); determining whether the memory of the laundry treatment device stores the load weight value of the laundry treatment device (104); determining that the memory stores the load weight value, and sensing the amount of eccentricity of the laundry treatment device according to the load weight value (106); and determining that the memory does not store the load weight value, measuring the load weight value of the laundry treatment device, storing the measured load weight value to the memory, and according to the measured load weight value, sensing the amount of eccentricity of the laundry treatment device (108). According to the technical solution, it is avoided to perform load weight identification when sensing the eccentricity each time, the time of sensing the eccentricity can be reduced, and the dewatering time of the laundry treatment device is reduced.

Description

Control method, control device and laundry treatment apparatus of laundry treatment apparatus

This application claims the priority of the Chinese patent application submitted to the State Intellectual Property Office of China on June 30, 2020, the application number is "202010609983.4", and the application name is "Control Method, Control Device and Clothes Treatment Equipment for Clothes Treatment Equipment" , the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of clothing treatment equipment, and in particular, to a control method of a clothing treatment equipment, a control apparatus for a clothing treatment equipment, a clothing treatment equipment, and a computer-readable storage medium.

Background technique

In the drum washing machine, when the drum driven by the variable frequency motor is unbalanced, the higher the rotation speed of the variable frequency motor, the greater the vibration and noise of the system, which will reduce the service life of the drum washing machine. The variable frequency motor has the function of load unbalance detection. When the load is unbalanced, the speed can be adjusted or the unbalanced state of the load can be changed to reduce the vibration and noise of the system.

The related art provides the following two imbalance perception methods:

(1) The sensor is used to detect whether the drum is balanced, but the cost of the sensor is high and it is inconvenient to install, which makes the detection difficult.

(2) The eccentricity value of the load in the drum is sensed through the speed or torque information of the variable frequency motor. However, at present, this method will prolong the total dehydration time of the washing machine, waste electric energy, and cause poor user experience.

SUMMARY OF THE INVENTION

The present application aims to solve at least one of the technical problems existing in the prior art or related technologies.

To this end, one aspect of the present application is to provide a control method of a laundry treatment apparatus.

Another aspect of the present application is to provide a control device of a laundry treatment apparatus.

Yet another aspect of the present application is to propose a laundry treatment apparatus.

Yet another aspect of the present application is to propose a computer-readable storage medium.

In view of this, according to an aspect of the present application, a method for controlling a clothes treatment device is proposed, including: receiving an eccentricity detection signal, judging whether a load weight value of the clothes treatment device is stored in a memory of the clothes treatment device; load weight value, sense the eccentricity of the laundry treatment device according to the load weight value; determine that the load weight value is not stored in the memory, detect the load weight value of the laundry treatment device, store the detected load weight value in the memory, and according to the detected load weight value The load weight value of the senses the eccentricity of the laundry treatment device.

In the control method of the clothes processing device provided by the present application, after receiving the eccentricity detection signal, it is judged whether the load weight value is stored in the memory of the clothes processing device, and if the load weight value is stored, the eccentricity perception is directly performed by using the load weight value, There is no need to perform the load weight identification again; if the load weight value is not stored, the load weight identification is performed to obtain the load weight value. Through the technical solution of the present application, it is avoided to perform load weight identification every time the eccentricity is sensed, and the time for sensing the eccentricity can be shortened, thereby shortening the dehydration time of the laundry treatment device.

It is understandable that the laundry processing device will perform eccentricity sensing at least once before performing high-speed dehydration (if the eccentricity obtained by the first eccentricity sensing is small enough to enable high-speed dehydration, the eccentricity sensing will not be continued, otherwise, the eccentricity sensing will be continued. eccentric perception). In the current eccentric sensing, if it is judged that no load weight value is stored, it indicates that the overload weight identification is not performed in this dehydration stage, so the load weight value needs to be identified for eccentric sensing, that is, the first step of this dehydration stage is performed. A load weight identification. In addition, the load weight value of the first load weight identification needs to be stored, and if it is determined that high-speed dehydration cannot be performed according to the result of the current eccentricity sensing, the next eccentricity sensing needs to be performed. Between the current eccentricity sensing and the next eccentricity sensing, the laundry processing device does not perform washing, rinsing, pre-spinning and other procedures, so the load weight does not change, so the stored load weight value can be provided to the current eccentricity sensing device. Next time eccentric perception use. Specifically, if it is determined that the load weight value is stored in the memory during the next eccentricity sensing, the load weight value is directly used, thereby avoiding the extension of the dehydration time due to the load weight identification again in the next eccentricity sensing.

According to the control method of the above-mentioned laundry treatment device of the present application, it may also have the following technical features:

In the above technical solution, the method further includes: controlling the laundry treatment device to dehydrate the load based on the eccentricity of the clothes treatment device being less than or equal to a preset threshold; after the dehydration is completed, clearing the load weight value stored in the memory.

In this technical solution, when it is judged that the eccentricity of the laundry processing equipment is less than or equal to the preset threshold, it indicates that the eccentricity is small enough to avoid the problem of bucket collision during high-speed dehydration, so the laundry processing equipment is controlled to dehydrate the load. Further, after the dehydration is completed, the load weight value stored in the memory is cleared to zero, so as to avoid applying the stored load weight to the eccentricity sensing process in the next dehydration stage, which can improve the accuracy of eccentricity sensing.

It is understandable that after each dehydration stage is completed, the load weight value of this dehydration stage should be cleared, because after a dehydration, the laundry treatment equipment may also perform the functions of washing (or rinsing) and dehydrating again, while washing (or rinsing) (or rinsing) has caused the load weight value to change, so if the load weight value of the last spin is used, the eccentricity perception will be inaccurate, resulting in the risk of hitting the bucket during spin.

It should be noted that the completion of dehydration means the completion of the dehydration stage, which includes two situations: in the first case, the laundry treatment device needs to perform eccentricity sensing at least once when executing the dehydration program. If the dehydration requirements are met, the washing tub is rotated to dehydrate the clothes, and the completion of the above dehydration means that the clothes are dried. In the second case, when the eccentricity sensed by the laundry processing device is always large and does not meet the dehydration requirements, and the clothes are not dehydrated until the dehydration program ends, the above dehydration completion means that the dehydration program ends. In any of the above technical solutions, the method further includes: controlling the clothes treatment device to shake off the load based on the fact that the eccentricity of the clothes treatment device is greater than a preset threshold.

In this technical solution, when the amount of eccentricity is greater than the preset threshold, it indicates that the eccentricity is large, so the clothes processing equipment is controlled to shake the load, so that the load is distributed as evenly as possible in the washing tub, and the eccentricity is sensed again after the shake is scattered to avoid There is a problem of hitting the bucket when dehydrating.

In any of the above technical solutions, the step of sensing the eccentricity of the clothes treating device according to the load weight value, or sensing the eccentricity of the clothes treating device according to the detected load weight value, specifically includes: acquiring the current of the motor of the clothes treating device, Calculate the motor operating parameters according to the current; sense the eccentricity of the laundry treatment device according to the load weight value and the fluctuation value of the motor operating parameters; wherein, the motor operating parameters include the speed or torque of the motor, and the fluctuation value of the motor operating parameters includes the maximum speed of the speed. The difference between the value and the minimum value of the speed, or the difference between the maximum value of the torque and the minimum value of the torque.

In this technical solution, the current of the motor is collected, and then the speed or torque of the motor is calculated, and the motor speed or torque fluctuation value within one rotation of the washing tub is obtained, and the fluctuation value is the maximum speed or torque and the minimum speed or torque. Finally, through the fluctuation value and the load weight value, query the pre-stored two-dimensional data corresponding to the load weight and the fluctuation value, and use two-dimensional linear fitting to calculate the eccentricity of the load in the laundry treatment device. The method does not need to set the sensor to detect the balance state of the load, reduces the detection cost, and improves the detection accuracy and high.

According to another aspect of the present application, a control device for a clothes treatment device is proposed, including: a memory, where a computer program is stored in the memory; Control Method.

In the control device of the clothes treatment device provided by the present application, when the computer program is executed by the processor, the steps of the control method of the clothes treatment device according to any of the above technical solutions are realized. Therefore, the control device of the clothes treatment device includes any of the above technical solutions. All the beneficial effects of the control method of the laundry treatment apparatus.

According to yet another aspect of the present application, a clothing processing device is proposed, comprising: a washing tub; a motor, which is used to drive the washing tub to rotate; a memory, where a computer program is stored in the memory; a processor, which realizes when the processor executes the computer program: Receive the eccentricity detection signal, and determine whether the load weight value of the laundry processing device is stored in the memory; determine whether the load weight value is stored in the memory, and sense the eccentricity of the laundry processing device according to the load weight value; determine that the load weight value is not stored in the memory, and control the motor to drive The washing tub rotates to obtain the load weight value of the laundry treatment device, stores the obtained load weight value in the memory, and senses the eccentricity of the clothes treatment device according to the obtained load weight value.

The clothing processing device provided by the present application, after receiving the eccentricity detection signal, judges whether the load weight value is stored in the memory of the clothing processing device, and if the load weight value is stored, the eccentricity perception is directly performed by using the load weight value, without the need to re-run Carry out load weight identification; if no load weight value is stored, carry out load weight identification to obtain the load weight value. Through the technical solution of the present application, it is avoided to perform load weight identification every time the eccentricity is sensed, the time for sensing the eccentricity can be shortened, and the dehydration time of the laundry treatment equipment can be shortened.

It can be understood that the laundry treatment device will perform eccentricity sensing at least once before performing high-speed spin (if the eccentricity obtained by the first eccentricity sensing is small enough to enable high-speed spin-drying, the eccentricity sensing will not be continued, otherwise, the eccentricity sensing will be continued. eccentric perception). In the current eccentric sensing, if it is judged that no load weight value is stored, it indicates that the overload weight identification is not performed in this dehydration stage, so the load weight value needs to be identified for eccentric sensing, that is, the first step of this dehydration stage is performed. A load weight identification. In addition, the load weight value of the first load weight identification needs to be stored, and if it is determined that high-speed dehydration cannot be performed according to the result of the current eccentricity sensing, the next eccentricity sensing needs to be performed. Between the current eccentricity sensing and the next eccentricity sensing, the laundry processing device does not perform washing, rinsing, pre-spinning and other procedures, so the load weight does not change, so the stored load weight value can be provided to the current eccentricity sensing device. Next time eccentric perception use. Specifically, if it is determined that the load weight value is stored in the memory during the next eccentricity sensing, the load weight value is directly used, thereby avoiding the extension of the dehydration time due to the load weight identification again in the next eccentricity sensing.

The above-mentioned clothes treating apparatus according to the present application may also have the following technical features:

In the above technical solution, when the processor executes the computer program, the processor also implements: based on the fact that the eccentricity of the laundry processing equipment is less than or equal to a preset threshold, the motor is controlled to drive the washing tub to rotate to dehydrate the load; load weight value.

In this technical solution, when it is judged that the eccentricity of the laundry processing equipment is less than or equal to the preset threshold, it indicates that the eccentricity is small enough to avoid the problem of hitting the bucket during high-speed dehydration, so the laundry processing equipment is controlled to dehydrate the load. Further, after the dehydration is completed, the load weight value stored in the memory is cleared to zero, so as to avoid applying the stored load weight to the eccentricity sensing process in the next dehydration stage, which can improve the accuracy of eccentricity sensing.

It should be noted that the completion of dehydration means the completion of the dehydration stage, which includes two situations: in the first case, the laundry treatment device needs to perform eccentricity sensing at least once when executing the dehydration program. If the dehydration requirements are met, the washing tub is rotated to dehydrate the clothes, and the completion of the above dehydration means that the clothes are dried. In the second case, when the eccentricity sensed by the laundry treatment device is always large, the dehydration requirement is not met, and the clothes are not dehydrated until the dehydration program ends, then the above dehydration completion means that the dehydration program ends.

In any of the above technical solutions, when the processor executes the computer program, the processor further implements: based on the fact that the eccentricity of the laundry treatment device is greater than a preset threshold, the motor is controlled to drive the washing tub to rotate to shake off the load.

In any of the above technical solutions, the clothes treatment device further includes: a current detection device connected to the processor, and the current detection device is used to detect the current of the motor; when the processor executes the computer program, it also realizes: when the motor is controlled to drive the washing tub to rotate, In the process of obtaining the load weight value of the clothes treatment device, the current of the motor is obtained, and the motor operation parameters are calculated according to the current; the eccentricity of the clothes treatment device is sensed according to the load weight value and the fluctuation value of the motor operation parameters; wherein, the motor operation parameters include The speed or torque of the motor, the fluctuation value of the motor operating parameters includes the difference between the maximum value of the speed and the minimum value of the speed, or the difference between the maximum value of the torque and the minimum value of the torque.

In this technical solution, the current of the motor is collected, and then the speed or torque of the motor is calculated, and the motor speed or torque fluctuation value within one rotation of the washing tub is obtained, and the fluctuation value is the maximum speed or torque and the minimum speed or torque. Finally, through the fluctuation value and the load weight value, query the pre-stored two-dimensional data corresponding to the load weight and the fluctuation value, and use two-dimensional linear fitting to calculate the eccentricity of the load in the laundry treatment device. There is no need to set the sensor to detect the balance state of the load, the detection cost is reduced, and the detection accuracy is improved.

According to yet another aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, implements the control method for a laundry treatment device according to any of the above technical solutions.

The computer-readable storage medium provided by the present application, when the computer program is executed by the processor, implements the steps of the control method of the laundry treatment device according to any of the above technical solutions, so the computer-readable storage medium includes the laundry treatment of any of the above-mentioned technical solutions. The full benefit of the control method of the device.

Additional aspects and advantages of the present application will become apparent in the description section that follows, or will be learned by practice of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

FIG. 1 shows a schematic flowchart of a control method of a laundry treatment device according to a first embodiment of the present application;

FIG. 2 shows a schematic flowchart of a control method of a laundry treatment device according to a second embodiment of the present application;

FIG. 3 shows a schematic flowchart of a control method of a laundry treatment device according to a third embodiment of the present application;

Fig. 4 shows a schematic block diagram of the control device of the laundry treatment apparatus according to the first embodiment of the present application;

Fig. 5 shows a schematic block diagram of a control device of a laundry treatment apparatus according to a second embodiment of the present application;

FIG. 6 shows a schematic diagram of the work flow of the control device of the clothes treating apparatus according to the embodiment of the present application;

Fig. 7 shows a schematic block diagram of a laundry treatment apparatus according to an embodiment of the present application.

detailed description

In order to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited to the specific details disclosed below. Example limitations.

An embodiment of the first aspect of the present application provides a method for controlling a laundry treatment device, and the control method for the laundry treatment device will be described in detail through the following embodiments.

Embodiment 1, FIG. 1 shows a schematic flowchart of a control method of a laundry treatment apparatus according to a first embodiment of the present application. Among them, the method includes:

Step 102, receiving an eccentricity detection signal;

Step 104, determine whether the load weight value of the clothes treatment device is stored in the memory of the clothes treatment device, determine whether the load weight value of the clothes treatment device is stored in the memory, go to step 106, otherwise go to step 108;

Step 106, sensing the eccentricity of the clothes treatment device according to the load weight value;

Step 108: Detect the load weight value of the laundry treatment apparatus, store the detected load weight value in a memory, and sense the eccentricity of the laundry treatment apparatus according to the detected load weight value.

In the control method of the clothes processing device provided by the present application, after receiving the eccentricity detection signal, it is judged whether the load weight value is stored in the memory of the clothes processing device, and if the load weight value is stored, the eccentricity perception is directly performed by using the load weight value, There is no need to perform the load weight identification again; if the load weight value is not stored, the load weight identification is performed to obtain the load weight value. Through the technical solution of the present application, it is avoided to perform load weight identification every time the eccentricity is sensed, the time for sensing the eccentricity can be shortened, and the dehydration time of the laundry treatment equipment can be shortened.

It should be noted that the laundry processing equipment performs load weight identification, that is, controlling the motor of the laundry processing equipment to drive the washing tub of the laundry processing equipment to rotate to a preset speed, and then measuring the load inertia by accelerating or decelerating, and then using the load inertia and The load weight mapping relationship is obtained by looking up the table to obtain the load weight.

The clothes treatment device includes a washing machine and a clothes dryer, and the washing machine may be a drum washing machine.

Embodiment 2, FIG. 2 shows a schematic flowchart of a control method of a laundry treatment device according to a second embodiment of the present application. Among them, the method includes:

Step 202, receiving an eccentricity detection signal;

Step 204, determine whether the load weight value of the clothes treatment device is stored in the memory of the clothes treatment device, determine whether the load weight value of the clothes treatment device is stored in the memory, go to step 206, otherwise go to step 208;

Step 206, sensing the eccentricity of the clothes treating device according to the load weight value;

Step 208: Detect the load weight value of the clothes treatment device, store the detected load weight value in the memory, and sense the eccentricity of the clothes treatment device according to the detected load weight value;

Step 210, determine whether the eccentricity of the clothes treatment device is less than or equal to a preset threshold, and determine that the eccentricity of the clothes treatment device is less than or equal to the preset threshold, then go to step 212, otherwise go to step 214;

Step 212, controlling the laundry treatment equipment to dehydrate the load, and after the dehydration is completed, clear the load weight value stored in the memory;

Step 214, controlling the laundry treatment device to shake off the load.

In this embodiment, when it is judged that the eccentricity of the laundry processing device is less than or equal to the preset threshold, it indicates that the eccentricity is small enough to avoid the problem of bucket collision during high-speed dehydration, so the laundry processing device is controlled to dehydrate the load. Further, after the dehydration is completed, the load weight value stored in the memory is cleared to zero, so as to avoid applying the stored load weight to the eccentricity sensing process in the next dehydration stage, which can improve the accuracy of eccentricity sensing. When the eccentricity is greater than the preset threshold, it indicates that the eccentricity is large. Therefore, the clothes processing equipment is controlled to shake and disperse the load, so that the load is distributed as evenly as possible in the washing tub, and the eccentricity is sensed again after the shaking is dispersed, so as to avoid the collision of the bucket during dehydration. problem.

It should be noted that the completion of dehydration means the completion of the dehydration stage, which includes two situations: in the first case, the laundry treatment device needs to perform eccentricity sensing at least once when executing the dehydration program. If the dehydration requirements are met, the washing tub is rotated to dehydrate the clothes, and the completion of the above dehydration means that the clothes are dried. In the second case, when the eccentricity sensed by the laundry processing device is always large and does not meet the dehydration requirements, and the clothes are not dehydrated until the dehydration program ends, the above dehydration completion means that the dehydration program ends.

In any of the above embodiments, the step of sensing the eccentricity of the clothes treating device according to the load weight value, or sensing the eccentricity of the clothes treating device according to the detected load weight value specifically includes: acquiring the current of the motor of the clothes treating device, Calculate the motor operating parameters according to the current; sense the eccentricity of the laundry treatment device according to the load weight value and the fluctuation value of the motor operating parameters; wherein, the motor operating parameters include the speed or torque of the motor, and the fluctuation value of the motor operating parameters includes the maximum speed of the speed. The difference between the value and the minimum value of the speed, or the difference between the maximum value of the torque and the minimum value of the torque.

In this embodiment, the current of the motor is collected to calculate the speed or torque of the motor, and the fluctuation value of the motor speed or torque within one rotation of the washing tub is obtained, and the fluctuation value is the maximum speed or torque and the minimum speed or torque. Finally, through the fluctuation value and the load weight value, query the pre-stored two-dimensional data corresponding to the load weight and the fluctuation value, and use two-dimensional linear fitting to calculate the eccentricity of the load in the laundry treatment device. The method does not need to set the sensor to detect the balance state of the load, reduces the detection cost, and improves the detection accuracy and high.

Embodiment 3, FIG. 3 shows a schematic flowchart of a control method of a laundry treatment device according to a third embodiment of the present application. Among them, the method includes:

Step 302, receiving an eccentricity detection signal;

Step 304, determine whether the laundry treatment device has executed the washing program, determine that the laundry treatment device has not executed the washing program, go to step 306, otherwise go to step 310;

Step 306, determine whether the laundry treatment equipment has performed the pre-drying procedure, determine that the laundry processing equipment has not performed the pre-drying procedure, and go to step 308, otherwise, go to step 310;

Step 308, sensing the eccentricity of the laundry treatment device according to the pre-stored load weight, wherein the pre-stored load weight is the load weight value detected when the laundry treatment device performs load weight detection for the first time in the current dehydration stage;

Step 310: Detect the load weight value of the clothes treatment device and sense the eccentricity of the clothes treatment device according to the load weight value.

For example, it may be necessary to try the eccentricity sensing multiple times before the high-speed spinning process. In each eccentricity sensing, it is determined whether the laundry processing equipment has performed the washing process and the pre-spinning process between the previous eccentricity sensing and the current eccentricity sensing. That is, it is determined whether the load weight has changed, if not, the eccentricity of the laundry treatment device is sensed according to the pre-stored load weight value, and if at least one of the washing program and the pre-spinning program is executed, the current load weight value is detected, The eccentric amount of the laundry treating apparatus is sensed according to the current load weight value.

It should be noted that judging whether the laundry treatment device has executed the washing program is to determine whether the dehydration program has just entered, and judging whether the clothes treatment device has executed the pre-dehydration program is to determine whether the load state has changed. This embodiment does not limit the judging sequence of the washing program and the pre-spinning program.

For example, when the laundry processing apparatus performs a washing program and a high-speed spin program, it may be necessary to try the eccentricity sensing several times before the high-speed spin program. In the first eccentric sensing, it is determined that the washing program has been executed, and it is determined that the weight of the clothes has changed due to the injection of water during the washing process, and then the first eccentric sensing needs to re-detect the clothes weight and store the clothes weight. Then, the eccentricity of the load is obtained according to the detected laundry weight and motor operating parameters. If the amount of eccentricity obtained from the first eccentricity perception is large and the high-speed dehydration cannot be entered, shake the clothes away and perform the second eccentricity perception, and make sure that the washing program is not executed between the first eccentricity perception and the second eccentricity perception ( And the clothes weight detected in the last eccentric sensing is stored), then the eccentricity of the load is obtained according to the motor operating parameters and the clothes weight detected during the first eccentric sensing. If the amount of eccentricity obtained by the second eccentricity perception is large, and the high-speed dehydration still cannot be entered, shake the clothes away and perform the third eccentricity perception, and determine between the third eccentricity perception and the second eccentricity perception (or in the third eccentricity perception). If the washing program is not executed between the eccentric sensing and the first eccentric sensing), the eccentric amount of the load is obtained according to the motor operating parameters and the detected laundry weight during the first eccentric sensing. If the amount of eccentricity sensed by the third eccentricity is small, enter high-speed dehydration.

For another example, the laundry processing apparatus performs a pre-spinning program and a high-speed spin-drying program, and before the high-speed spin-drying program, it may be necessary to try to sense the eccentricity multiple times. In the first eccentric sensing, it is determined that the pre-spinning procedure has been executed, and it is determined that the laundry weight has changed due to the dehydration of the laundry during the pre-spinning process, and the laundry weight needs to be re-detected for the first eccentric sensing. Then, the eccentricity of the load is obtained according to the detected laundry weight and motor operating parameters. If the amount of eccentricity obtained by the first eccentricity perception is large, and the high-speed dehydration program cannot be entered, shake the clothes away and perform the second eccentricity perception, and make sure that no pre-spinning is performed between the first eccentricity perception and the second eccentricity perception. program (and the clothes weight detected in the last eccentric sensing is stored), then the eccentricity of the load is obtained according to the motor operating parameters and the clothes weight detected during the first eccentric sensing. If the amount of eccentricity obtained by the second eccentricity perception is large, and the high-speed dehydration still cannot be entered, shake the clothes away and perform the third eccentricity perception, and determine between the third eccentricity perception and the second eccentricity perception (or in the third eccentricity perception). If the pre-spinning procedure is not performed between the eccentricity sensing and the first eccentricity sensing), the eccentricity of the load is obtained according to the motor operating parameters and the clothes weight detected during the first eccentricity sensing. If the amount of eccentricity sensed by the third eccentricity is small, enter high-speed dehydration.

An embodiment of the second aspect of the present application provides a control device for a clothes treatment device, and the control device for the clothes treatment device will be described in detail through the following embodiments.

Embodiment 1, FIG. 4 shows a schematic block diagram of a control apparatus 400 of a laundry treatment apparatus according to the first embodiment of the present application. Wherein, the control device 400 of the clothes treatment equipment includes:

memory 402, the memory 402 stores a computer program;

The processor 404, when the processor 404 executes the computer program, implements the control method of the clothes treating apparatus according to any of the foregoing embodiments.

In the control device 400 of the clothes treatment device provided by the present application, when the computer program is executed by the processor 404, the steps of the control method of the clothes treatment device according to any of the above-mentioned embodiments are realized, so the control device 400 of the clothes treatment device includes any of the above-mentioned steps. All the beneficial effects of the control method of the laundry treating apparatus of the embodiment.

It should be noted that, in the control method of the clothes treatment device provided by the embodiments of the present application, the execution body may be the control device 400 of the clothes treatment device, or the control device 400 of the clothes treatment device for executing the control of loading the clothes treatment device. The method's control module.

The control device of the clothes treating apparatus in the embodiment of the present application may be a device, and may also be a component, an integrated circuit, or a chip in the clothes treating apparatus.

Embodiment 2, Fig. 5 shows a schematic block diagram of a control device 500 of a laundry treatment apparatus according to the second embodiment of the present application. Wherein, the control device 500 of the clothes treatment equipment includes: a load weight identification module 502 , an eccentricity sensing module 504 , and an eccentricity sensing logic control module 506 . After the laundry processing device enters the dehydration mode, the eccentricity sensing logic control module 506 controls the operation of the load weight identification module 502 and the eccentricity sensing module 504 according to the current load state in the laundry processing device (whether the load has undergone high-speed dehydration and whether the load has undergone washing). , the specific working method is shown in Figure 6, including:

Step 602, start to perceive eccentricity. That is, after the eccentricity sensing logic control module 706 receives the sensing eccentricity instruction, it starts to run the sensing eccentricity program;

Step 604, determine whether the load has been washed. That is, it is judged whether the dehydration program has just been entered, if the condition is not established, go to step 606, and if the condition is established, go to step 608;

Step 606, determine whether the load has undergone high-speed dehydration. That is, it is judged whether the load state has changed, if the condition is not satisfied, go to step 610; if the condition is satisfied, go to step 608;

Step 608, clear the weighing flag;

Step 610, determine whether the weighing flag is 1. That is, it is judged whether the weighing flag is set, if the weighing flag is not set, then go to step 612, if the weighing flag is set, output the last load weight value, and then go to step 614;

In step 612 , the load is weighed, and the weighing flag is set at the same time, and the process goes to step 614 . That is, the load weight identification module 502 is run, and after the load weight identification is completed, the current load weight is output while the weighing flag is set;

In step 614, the rotational speed or torque fluctuation value is identified, and the eccentricity is sensed. That is, the eccentricity sensing module 504 is operated to obtain the eccentricity amount according to the load weight value and the periodic variation of the rotational speed or torque of the motor.

An embodiment of the third aspect of the present application proposes a laundry treatment device, and FIG. 7 shows a schematic block diagram of a laundry treatment device 700 according to an embodiment of the present application. Wherein, the clothes treatment device 700 includes:

washing tub 702;

A motor 704, the motor 704 is used to drive the washing tub 702 to rotate;

memory 706, the memory 706 stores a computer program;

The processor 708, when the processor 708 executes a computer program, realizes:

Receive the eccentricity detection signal, and determine whether the load weight value of the laundry treatment device 700 is stored in the memory 706; determine whether the load weight value is stored in the memory 706, and sense the eccentricity of the laundry treatment device according to the load weight value; determine that the load weight value is not stored in the memory 706 , and control the motor 704 to drive the washing tub 702 to rotate to obtain the load weight value of the laundry treatment device 700, store the obtained load weight value in the memory 706, and sense the eccentricity of the clothes treatment device according to the obtained load weight value.

The laundry treatment device 700 provided by the present application, after receiving the eccentricity detection signal, determines whether a load weight value is stored in the memory of the laundry treatment device, and if the load weight value is stored, the load weight value is directly used for eccentricity sensing without the need for Perform load weighing again; if there is no load weight value stored, perform load weight identification to obtain the load weight value. Through the technical solution of the present application, it is avoided to perform load weight identification every time the eccentricity is sensed, the time for sensing the eccentricity can be shortened, and the dehydration time of the clothes processing equipment can be saved.

It can be understood that the laundry processing apparatus 700 will perform eccentricity sensing at least once before performing high-speed dehydration (if the eccentricity obtained by the first eccentricity sensing is small enough to enable high-speed dehydration, the eccentricity sensing will not be continued, otherwise, the eccentricity sensing will be continued. eccentric perception). In the current eccentric sensing, if it is judged that the load weight value is not stored, it indicates that the overload weight identification is not performed in this dehydration stage, so the load weight value needs to be identified for eccentric sensing, that is, the first step of this dehydration stage is performed. A load weight identification. In addition, the load weight value of the first load weight identification needs to be stored, and if it is determined that high-speed dehydration cannot be performed according to the result of the current eccentricity sensing, the next eccentricity sensing needs to be performed. However, between the current eccentricity sensing and the next eccentricity sensing, the laundry processing apparatus 700 does not perform procedures such as washing, rinsing, pre-spinning, etc., so the load weight does not change, so the stored load weight value can be provided to the current eccentricity Perceived next use of eccentric perception. Specifically, if it is determined that the load weight value is stored in the memory during the next eccentricity sensing, it will be used directly, so as to avoid the extension of the dehydration time caused by the load weight identification again in the next eccentricity sensing.

It should be noted that the processor 708 performs load weight identification, that is, controls the motor 704 to drive the washing tub 702 to rotate to a preset rotational speed, then measures the load inertia by means of acceleration or deceleration, and then checks the mapping relationship between the load inertia and the load weight. Table to get the load weight.

The clothes processing apparatus 700 includes a washing machine and a clothes dryer, and the washing machine may be a drum washing machine.

In the above embodiment, when the processor 708 executes the computer program, it also realizes: based on the eccentricity of the laundry treatment device 700 being less than or equal to the preset threshold, the motor 704 is controlled to drive the washing tub 702 to rotate to dehydrate the load; after the dehydration is completed, The load weight value stored in memory 706 is cleared.

In this embodiment, when it is judged that the eccentricity of the laundry processing device is less than or equal to the preset threshold, it indicates that the eccentricity is small enough to avoid the problem of bucket collision during high-speed dehydration, so the laundry processing device is controlled to dehydrate the load. Further, after the dehydration is completed, the load weight value stored in the memory is cleared to zero, so as to avoid applying the stored load weight to the eccentricity sensing process in the next dehydration stage, which can improve the accuracy of eccentricity sensing.

It is understandable that after each dehydration stage is completed, the load weight value of this dehydration stage should be cleared, because after a dehydration, the laundry treatment equipment may also perform the functions of washing (or rinsing) and dehydration again, while washing. (or rinsing) has caused the load weight value to change, so if the load weight value of the last spin is used, the eccentricity perception will be inaccurate, resulting in the risk of hitting the bucket during spin.

In any of the above embodiments, when the processor 708 executes the computer program, the processor 708 further realizes that: based on the eccentricity of the laundry treatment device 700 being greater than a preset threshold, the motor 704 is controlled to drive the washing tub 702 to rotate to shake off the load.

In this embodiment, when the amount of eccentricity is greater than the preset threshold, it indicates that the eccentricity is relatively large. Therefore, the clothes processing device 700 is controlled to shake and disperse the load, so that the load is distributed as evenly as possible in the washing tub, and the eccentricity is sensed again after the shaking is dissipated. Avoid the problem of hitting the bucket when dehydrating.

In any of the above embodiments, as shown in FIG. 7 , the clothes treating apparatus 700 further includes:

a current detection device 710, connected to the processor 708, and the current detection device 710 is used to detect the current of the motor 704;

When the processor 708 executes the computer program, it also implements:

In the process of controlling the motor 704 to drive the washing tub 702 to rotate to obtain the load weight value of the laundry treatment device 700, the current of the motor is obtained, and the motor operating parameters are calculated according to the current; The eccentricity of the device 700; wherein, the motor operating parameter includes the rotational speed or torque of the motor, and the fluctuation value of the motor operating parameter includes the difference between the maximum value of the rotational speed and the minimum value of the rotational speed, or the maximum value of the torque and the minimum value of the torque difference in value.

In this embodiment, the current of the motor is collected to calculate the speed or torque of the motor, and the fluctuation value of the motor speed or torque within one rotation of the washing tub is obtained, and the fluctuation value is the maximum speed or torque and the minimum speed or torque. Finally, through the fluctuation value and the load weight value, query the pre-stored two-dimensional data corresponding to the load weight and the fluctuation value, and use two-dimensional linear fitting to calculate the eccentricity of the load in the laundry treatment device. There is no need to set the sensor to detect the balance state of the load, the detection cost is reduced, and the detection accuracy is improved.

An embodiment of the fourth aspect of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the control method for a laundry treatment device according to any of the foregoing embodiments.

In the computer-readable storage medium provided by the present application, when the computer program is executed by the processor, the steps of the control method of the laundry treatment device according to any of the above embodiments are implemented, so the computer-readable storage medium includes the laundry treatment in any of the above-mentioned embodiments. The full benefit of the control method of the device.

The computer-readable storage medium includes a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

In the description of this specification, the terms "first" and "second" are only used for the purpose of description, and should not be construed as indicating or implying relative importance, unless otherwise explicitly specified and limited; the terms "connected", " "Installation" and "fixing" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in this application at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

A control method for a laundry treatment device, comprising:

receiving an eccentricity detection signal, and judging whether the load weight value of the clothes treatment device is stored in the memory of the clothes treatment device;

Determining that the load weight value is stored in the memory, and sensing the eccentricity of the laundry treatment device according to the load weight value;

It is determined that the load weight value is not stored in the memory, the load weight value of the laundry treatment apparatus is detected, and the detected load weight value is stored in the memory, and according to the detected load weight value The amount of eccentricity of the laundry treating apparatus is sensed.
The control method of the laundry treating apparatus according to claim 1, further comprising:

Controlling the laundry processing apparatus to dehydrate the load based on the eccentricity of the laundry processing apparatus being less than or equal to a preset threshold;

After dehydration is completed, the load weight value stored in the memory is cleared.
The control method of the laundry treating apparatus according to claim 2, further comprising:

Based on the eccentric amount of the clothes treating device being greater than the preset threshold, the clothes treating device is controlled to shake off the load.
The control method of the clothes treating apparatus according to any one of claims 1 to 3, wherein the eccentric amount of the clothes treating apparatus is sensed according to the load weight value, or the detected load weight value is sensed. The steps of describing the eccentricity of the laundry treatment equipment specifically include:

acquiring the current of the motor of the clothes treatment device, and calculating the motor operating parameters according to the current;

Sensing the eccentricity of the laundry treatment device according to the load weight value and the fluctuation value of the motor operating parameter;

Wherein, the motor operating parameter includes the speed or torque of the motor, and the fluctuation value of the motor operating parameter includes the difference between the maximum value of the speed and the minimum value of the speed, or the maximum value of the torque The difference between the value and the minimum value of the torque.
A control device for a laundry treatment device, comprising:

a memory in which a computer program is stored;

A processor, which implements the control method of the laundry treatment apparatus according to any one of claims 1 to 4 when the processor executes the computer program.
A laundry treatment device, comprising:

washing tub;

a motor, which is used to drive the washing tub to rotate;

a memory in which a computer program is stored;

a processor, which implements when the processor executes the computer program:

receiving an eccentricity detection signal, and judging whether the load weight value of the clothes treatment device is stored in the memory;

Determining that the load weight value is stored in the memory, and sensing the eccentricity of the laundry treatment device according to the load weight value;

Determine that the load weight value is not stored in the memory, control the motor to drive the washing tub to rotate to obtain the load weight value of the laundry treatment device, and store the obtained load weight value in the memory , and sense the eccentricity of the laundry treatment device according to the obtained load weight value.
The clothes treating apparatus according to claim 6, wherein the processor, when executing the computer program, further implements:

Controlling the motor to drive the washing tub to rotate to dehydrate the load based on the fact that the eccentricity of the laundry treatment device is less than or equal to a preset threshold;

After dehydration is completed, the load weight value stored in the memory is cleared.
The clothes treating apparatus according to claim 7, wherein the processor, when executing the computer program, further implements:

Based on the fact that the eccentricity of the laundry treatment device is greater than the preset threshold, the motor is controlled to drive the washing tub to rotate so as to shake off the load.
The laundry treating apparatus according to any one of claims 6 to 8, further comprising:

a current detection device, connected to the processor, the current detection device is used to detect the current of the motor;

When the processor executes the computer program, it further implements:

In the process of controlling the motor to drive the washing tub to rotate to obtain the load weight value of the clothes treatment device, obtain the current of the motor, and calculate the motor operating parameters according to the current;

Sensing the eccentricity of the laundry treatment device according to the load weight value and the fluctuation value of the motor operating parameter;

Wherein, the motor operating parameter includes the speed or torque of the motor, and the fluctuation value of the motor operating parameter includes the difference between the maximum value of the speed and the minimum value of the speed, or the maximum value of the torque The difference between the value and the minimum value of the torque.
A computer-readable storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the control method of the laundry treatment apparatus according to any one of claims 1 to 4.