CN114575108A - Control device and method for drum washing machine, storage medium and electronic equipment - Google Patents

Control device and method for drum washing machine, storage medium and electronic equipment Download PDF

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Publication number
CN114575108A
CN114575108A CN202210136617.0A CN202210136617A CN114575108A CN 114575108 A CN114575108 A CN 114575108A CN 202210136617 A CN202210136617 A CN 202210136617A CN 114575108 A CN114575108 A CN 114575108A
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Prior art keywords
washing machine
rotating speed
drum
motor unit
motor
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CN202210136617.0A
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CN114575108B (en
Inventor
白可锐
蔡谷奇
兰文韩
邵冬
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/44—Control of the operating time, e.g. reduction of overall operating time
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/04—Signal transfer or data transmission arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/20—Parameters relating to constructional components, e.g. door sensors
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/24—Spin speed; Drum movements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The application relates to the technical field of automatic control, in particular to a control device, a control method, a storage medium and electronic equipment for a drum washing machine, which comprise: the collecting unit collects the position offset of the washing machine drum in real time; the control unit calculates a correction voltage according to the position offset; the motor unit operates according to the correction voltage to correct the position of the washing machine drum. This application gathers the position offset of cylinder in real time when drum type washing machine washes clothes, corrects the cylinder through the motor when gathering the offset, makes the cylinder keep central point as far as possible to put, saves the process that the load redistributed when detecting off-centre among the prior art, has shortened the laundry time by a wide margin, has improved the laundry efficiency, simultaneously the effectual problem of avoiding washing machine inner tub wall collision.

Description

Control device and method for drum washing machine, storage medium and electronic equipment
Technical Field
The present disclosure relates to the field of automatic control technologies, and in particular, to a control device and method for a drum washing machine, a storage medium, and an electronic device.
Background
The main solution to the problem of drum eccentricity in current-stage drum washing machines is to detect the eccentricity before the drum is rolled to a high rotation speed, and determine whether the eccentricity can meet the requirement of the high rotation speed, if the eccentricity does not meet the requirement, the speed of the motor is reduced and the motor is shaken and dispersed, and the process is repeated until the eccentricity meets the requirement, and the motor is allowed to have the high rotation speed.
The existing solution to the eccentricity problem is too time-consuming and inaccurate in view of the actual control flow.
Disclosure of Invention
In view of the above problems, the present application provides a control apparatus, method, storage medium and electronic device for a drum washing machine, which solves the technical problems of time consuming and inaccurate solution to the eccentricity problem in the related art.
In a first aspect, the present application provides a drum washing machine control method, including:
the collecting unit is used for collecting the position offset of the drum of the washing machine in real time;
the control unit is used for calculating correction voltage according to the position offset;
and the motor unit is used for correcting the position of the drum of the washing machine according to the correction voltage operation.
In some embodiments, the collecting unit is configured to obtain, by a position sensor, an offset voltage when there is a position offset of the washing machine drum, and send the offset voltage to the control unit.
In some embodiments, the control unit comprises:
and the position regulator is used for receiving the offset voltage, calculating the correction rotating speed of the motor unit, generating corresponding correction voltage according to the correction rotating speed and controlling the motor unit to operate.
In some embodiments, the control unit further comprises:
and the speed regulator is used for detecting the actual rotation during the operation of the motor unit, judging whether an error value exists between the actual rotating speed and the correction rotating speed, and if the error value exists between the actual rotating speed and the correction rotating speed, increasing the correction voltage by adopting PI regulation according to the error value to ensure that the actual rotating speed is the same as the correction rotating speed.
In some embodiments, the control unit further comprises:
and the current regulator is used for performing current compensation when the motor unit reaches the corrected rotating speed from the rotating speed of 0, so that the motor unit is at the rated current when the motor unit reaches the corrected rotating speed from the rotating speed of 0.
In some embodiments, the current regulator is further configured to limit a value of current in the motor unit in the event of a failure of the motor unit.
In some embodiments, the control unit further comprises:
and the power electronic converter is used for adjusting the correction voltage according to the model of the motor unit.
In a second aspect, a method for controlling a drum washing machine, the method includes:
the position offset of the drum of the washing machine is collected in real time through a collecting unit;
calculating a correction voltage according to the position offset through a control unit;
and correcting the position of the drum of the washing machine by the motor unit operating according to the correction voltage.
In a third aspect, a storage medium storing a computer program executable by one or more processors may be used to implement the drum washing machine control method as described in the second aspect above.
In a fourth aspect, an electronic device comprises a memory and a processor, wherein the memory stores a computer program, the memory and the processor are communicatively connected to each other, and the computer program, when executed by the processor, performs the control method of the drum washing machine according to the second aspect.
The application provides a drum washing machine control device, method, storage medium and electronic equipment, including: the collecting unit collects the position offset of the washing machine drum in real time; the control unit calculates a correction voltage according to the position offset; the motor unit operates according to the correction voltage to correct the position of the washing machine drum. This application gathers the position offset of cylinder in real time when drum type washing machine washes clothes, corrects the cylinder through the motor when gathering the offset, makes the cylinder keep central point as far as possible to put, saves the process that the load redistributed when detecting off-centre among the prior art, has shortened the laundry time by a wide margin, has improved the laundry efficiency, simultaneously the effectual problem of avoiding washing machine inner tub wall collision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a drum washing machine control device according to an embodiment of the present application;
FIG. 2 is a control block diagram of a servo control system according to an embodiment of the present disclosure;
FIG. 3 is a block diagram of a current closed-loop control according to an embodiment of the present disclosure;
FIG. 4 is a block diagram of a structure of a closed-loop control of a rotational speed provided in an embodiment of the present application;
FIG. 5 is a block diagram of a position closed-loop control provided in an embodiment of the present application;
fig. 6 is a flowchart illustrating a control method of a drum washing machine according to an embodiment of the present disclosure;
fig. 7 is a connection block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following detailed description will be provided with reference to the accompanying drawings and embodiments, so that how to apply the technical means to solve the technical problems and achieve the corresponding technical effects can be fully understood and implemented. The embodiments and various features in the embodiments of the present application can be combined with each other without conflict, and the formed technical solutions are all within the scope of protection of the present application.
It can be known from the background art that the main solution of the drum washing machine in the present stage to the problem of drum eccentricity is to detect the eccentricity before the drum is rolled to a high rotation speed, and determine whether the eccentricity can meet the requirement of the high rotation speed, if the eccentricity does not meet the requirement, the motor is decelerated and shaken out, and the operation is repeated until the eccentricity meets the requirement, and the motor is driven to the high rotation speed. The existing solution to the eccentricity problem is too time-consuming and inaccurate in view of the actual control flow.
In view of the above, the present application provides a control apparatus, a control method, a storage medium and an electronic device for a drum washing machine, which solve the technical problems of time-consuming and inaccurate eccentricity in the related art.
Example one
Fig. 1 is a schematic structural diagram of a control device of a drum washing machine according to an embodiment of the present application, and as shown in fig. 1, the control device includes:
the collecting unit 101 is used for collecting the position offset of the drum of the washing machine in real time;
a control unit 102, configured to calculate a correction voltage according to the position offset;
and the motor unit 103 is used for operating according to the correcting voltage and correcting the position of the drum of the washing machine.
It should be noted that, in the present application, the acquisition unit, the control unit and the motor unit constitute a servo eccentric correction control system, which is called a servo control system for short, and may also be called a position servo system, and the controlled quantity (output quantity) is a linear displacement or an angular displacement of a space position of a load machine, and when a position given quantity (input quantity) is changed arbitrarily, the main task of the system is to make the output quantity quickly and accurately reproduce the change of the given quantity.
In some embodiments, the collecting unit is configured to obtain, by a position sensor, an offset voltage when there is a position offset of the washing machine drum, and send the offset voltage to the control unit.
It should be noted that, based on the original structure of the drum washing machine, there are two damping supporting legs under the drum, and the hook connected to the drum is hung on the shell of the washing machine, so the longitudinal offset has been buffered, the main problem is to solve the position offset of the eccentric in the X direction, the main solution is to detect the position offset of the drum in the X axis direction by the position sensor, and the analog voltage signal of the sensor is fed back to the controller.
For example, the voltage signal fed back by the position sensor is 0-10V, 0-5V is left deviation, 5-10V is right deviation, the rolling deviation state can be known by detecting the analog voltage signal fed back by the sensor in real time through an ADC (analog-to-digital converter) module of the single chip microcomputer, and the controller controls the position of the screw rod through the control motor so as to transversely correct the position of the roller left and right and control the roller at the central position, so that the problem that the washing machine collides the wall is avoided.
In some embodiments, the control unit comprises:
and the position regulator is used for receiving the offset voltage, calculating the correction rotating speed of the motor unit, generating corresponding correction voltage according to the correction rotating speed and controlling the motor unit to operate.
In some embodiments, the control unit further comprises:
and the speed regulator is used for detecting the actual rotation during the operation of the motor unit, judging whether an error value exists between the actual rotating speed and the correction rotating speed, and if the error value exists between the actual rotating speed and the correction rotating speed, increasing the correction voltage by adopting PI regulation according to the error value to ensure that the actual rotating speed is the same as the correction rotating speed.
In some embodiments, the control unit further comprises:
and the current regulator is used for performing current compensation when the motor unit reaches the corrected rotating speed from the rotating speed of 0, so that the motor unit is at the rated current when the motor unit reaches the corrected rotating speed from the rotating speed of 0.
In some embodiments, the current regulator is further configured to limit a value of current in the motor unit in the event of a failure of the motor unit.
In some embodiments, the control unit further comprises:
and the power electronic converter is used for adjusting the correction voltage according to the model of the motor unit.
As shown in fig. 2, the control block diagram of the servo control system is shown.
Wherein, APR is a position regulator, ASR is a speed regulator, ACR is a current regulator, and UPE is a power electronic converter.
As can be seen from fig. 2, the current closed-loop control, referred to as current loop for short, the speed closed-loop control, referred to as speed loop for short, and the position closed-loop control, referred to as position loop for short, correspond to the current regulator.
The rotating speed ring and the current ring of the position ring are controlled by using a PI algorithm, and the position ring has an integral link in a forward channel, so that the steady state without static error can be realized by only adding a proportional control. The control system designed in this way can quickly carry out correspondence and reach a stable value, and then is controlled in a digital control mode, so that the precision and the accuracy are high, and the position of the roller can be accurately controlled to be always in a central state. The current loop is included in the control object model.
The actual working conditions of the whole system are as follows
Position ring:
the sensor converts the detected position of the roller into a corresponding voltage signal and feeds the voltage signal back to a single chip microcomputer (controller), for example, the voltage signal fed back by the sensor is 0-5V, 0-2.5V in left deflection, 2.5-5V in right deflection and 2.5V in middle position, different deflection positions of the roller can be converted into corresponding voltage signals, and the single chip microcomputer samples the voltage signals and then determines the target rotating speed of the motor, namely determines the size of the voltage output to the motor.
If the off-center position is too large, a large voltage is output, even if the motor outputs a large target rotational speed, so that it can return to the neutral position more quickly. In the process that the roller is close to the middle position, the output voltage, namely the target rotating speed is correspondingly reduced, and the phenomenon that after the roller rolls to the middle position, the rotating speed of the motor is too high due to the fact that the voltage output to the motor is too large, and the roller does not have time to brake is avoided, so that the roller deviates from the middle position again when the roller deviates from the right.
The position controller is used to adjust the target rotational speed.
The implementation is realized by a position loop PI (proportional integral) algorithm in software, which is the following formulas. The following formula is only theoretical at present, and needs to be modified when put into practical conditions.
As shown in fig. 3, the structure of the position closed-loop control is shown as a block diagram.
The open loop transfer function of the position loop can be easily obtained according to the block diagram
Figure BDA0003505016490000061
The APR selects a P regulator (proportional regulator) to obtain the open-loop transfer function of the system
Figure BDA0003505016490000062
Speed ring:
after the single chip microcomputer (controller) determines the target rotating speed through a PID algorithm of a position ring, corresponding voltage is output to the motor, the motor can not reach the target rotating speed due to various reasons such as load change and system error after rotating, the output voltage needs to be increased at this time, the motor can reach the target rotating speed, and the speed regulator plays a role in regulating the voltage and has the following working principle:
and detecting the actual rotating speed of the motor, comparing the actual rotating speed with the target rotating speed to obtain a corresponding error value, carrying out PI regulation on the error value, and increasing the corresponding output voltage, namely increasing the actual rotating speed to enable the actual rotating speed to reach the target rotating speed.
As shown in fig. 4, the structure of the closed-loop control of the rotation speed is shown.
The rotation speed regulator adopts an open loop transfer function of an integral regulator as
Figure BDA0003505016490000063
The open-loop transfer function of the speed loop can be obtained according to the block diagram
Figure BDA0003505016490000064
The system can calculate and derive the closed-loop transfer function of the rotating speed as
Figure BDA0003505016490000071
Current loop:
the current in the corresponding circuit is sampled by the ADC module of the single chip microcomputer so as to obtain the actual current of an armature in the motor, whether the actual rotating speed of the motor reaches the target rotating speed or not is judged according to the actual current, if the current is small, the target rotating speed is not reached, the voltage output of the single chip microcomputer is increased, the motor can reach the target rotating speed more quickly, and the response process of a system is accelerated; if the motor is locked or jammed or the rotating speed is too high, the current is larger, and the single chip microcomputer can reduce the voltage output to the motor, thereby playing the roles of protection and speed regulation.
The mechanism for realizing the method is as follows: and PI regulation (proportional integral regulation), wherein after the singlechip samples the response current value, the PI regulation is carried out through a PI algorithm in singlechip software, the corresponding voltage is output, and the rotating speed of the motor is regulated.
Fig. 5 is a block diagram of the current closed-loop control.
The mathematical model of the object with current loop control therein is as follows
Figure BDA0003505016490000072
In the formula Id-armature current
Figure BDA0003505016490000073
Armature current setting
Omega-servomotor speed measured in angular velocity
θm-servo system outputting mechanical rotation angle
j-transmission ratio of mechanical transmission
CTTorque coefficient of servo motor
TL-system load torque
TiEquivalent time constant of inertia of current loop
To summarize, the current regulators function as:
making the current closely follow the given voltage variation
Has timely anti-interference effect on the fluctuation of the power grid voltage
In the dynamic process of the rotating speed, the maximum current allowed by the motor is ensured to be obtained, so that the dynamic process is accelerated
When the motor is overloaded and even locked, the maximum value of the armature current is limited, and the quick automatic protection effect is achieved. Once the fault disappears, the system automatically recovers to normal. This effect is important for reliable operation of the system.
The position loop (position regulator) determines the motor target speed and provides a corresponding voltage.
However, in the actual working process, after the controller outputs the corresponding voltage, the actual rotating speed often cannot reach the target rotating speed, so that a speed closed loop (rotating speed regulator) is needed to regulate the output voltage, so that the rotating speed of the motor reaches the target rotating speed.
However, when the output voltage is applied to the motor, the rotating speed has a dynamic response process, i.e. from 0 rotating speed to the target rotating speed, in order to enable the motor to quickly read and reach the target rotating speed, the output voltage is often larger in the acceleration process, and when the constant speed is reached, the voltage returns to the corresponding value, and the voltage regulation for accelerating the response process is realized through a current loop (a current regulator).
In summary, the present application provides a control device for a drum washing machine, including: the collecting unit collects the position offset of the washing machine drum in real time; the control unit calculates a correction voltage according to the position offset; the motor unit operates according to the correction voltage to correct the position of the washing machine drum. This application gathers the position offset of cylinder in real time when drum type washing machine washes clothes, corrects the cylinder through the motor when gathering the offset, makes the cylinder keep central point as far as possible to put, saves the process that the load redistributed when detecting off-centre among the prior art, has shortened the laundry time by a wide margin, has improved the laundry efficiency, simultaneously the effectual problem of avoiding washing machine inner tub wall collision.
Example two
Based on the control device of the drum washing machine disclosed in the above embodiment of the present invention, fig. 6 specifically discloses a control method of the drum washing machine applied to the control device of the drum washing machine.
As shown in fig. 6, an embodiment of the present invention discloses a control method for a drum washing machine, the method including:
s601, collecting the position offset of the washing machine drum in real time through a collecting unit;
s602, calculating a correction voltage according to the position offset through a control unit;
and S603, operating according to the correction voltage through a motor unit, and correcting the position of the washing machine drum.
The specific contents of each unit in the control method of the drum washing machine disclosed in the above embodiment of the present invention can be referred to the corresponding contents in the control device of the drum washing machine disclosed in the above embodiment of the present invention, and are not described again here.
In summary, an embodiment of the present application provides a control method for a drum washing machine, including: the collecting unit collects the position offset of the washing machine drum in real time; the control unit calculates a correction voltage according to the position offset; the motor unit operates according to the correction voltage to correct the position of the washing machine drum. This application gathers the position offset of cylinder in real time when drum type washing machine washes clothes, corrects the cylinder through the motor when gathering the offset, makes the cylinder keep central point as far as possible to put, saves the process that the load redistributed when detecting off-centre among the prior art, has shortened the laundry time by a wide margin, has improved the laundry efficiency, simultaneously the effectual problem of avoiding washing machine inner tub wall collision.
EXAMPLE III
The present embodiment further provides a computer-readable storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, a server, an App application mall, etc., on which a computer program is stored, where the computer program, when executed by a processor, may implement the method steps of the first embodiment, and thus, the description of the embodiment is not repeated herein.
Example four
Fig. 7 is a connection block diagram of an electronic device 500 according to an embodiment of the present application, and as shown in fig. 7, the electronic device 500 may include: a processor 501, a memory 502, a multimedia component 503, an input/output (I/O) interface 504, and a communication component 505.
The processor 501 is configured to execute all or part of the steps in the control method of the drum washing machine according to the first embodiment. The memory 502 is used to store various types of data, which may include, for example, instructions for any application or method in the electronic device, as well as application-related data.
The Processor 501 may be implemented by an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components, and is configured to execute the method for controlling the drum washing machine in the first embodiment.
The Memory 502 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk.
The multimedia component 503 may include a screen, which may be a touch screen, and an audio component for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in a memory or transmitted through a communication component. The audio assembly also includes at least one speaker for outputting audio signals.
The I/O interface 504 provides an interface between the processor 501 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons.
The communication component 505 is used for wired or wireless communication between the electronic device 500 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or a combination of one or more of them, so that the corresponding Communication component 505 may include: Wi-Fi module, bluetooth module, NFC module.
In summary, the present application provides a control apparatus and a method for a drum washing machine, a storage medium and an electronic device, wherein the method includes: the collecting unit collects the position offset of the washing machine drum in real time; the control unit calculates a correction voltage according to the position offset; the motor unit operates according to the correction voltage to correct the position of the washing machine drum. This application gathers the position offset of cylinder in real time when drum type washing machine washes clothes, corrects the cylinder through the motor when gathering the offset, makes the cylinder keep central point as far as possible to put, saves the process that the load redistributed when detecting off-centre among the prior art, has shortened the laundry time by a wide margin, has improved the laundry efficiency, simultaneously the effectual problem of avoiding washing machine inner tub wall collision.
In the embodiments provided in the present application, it should be understood that the disclosed method can be implemented in other ways. The above-described method embodiments are merely illustrative.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although the embodiments disclosed in the present application are described above, the above descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.

Claims (10)

1. A control device for a drum washing machine, characterized in that it comprises:
the collecting unit is used for collecting the position offset of the drum of the washing machine in real time;
the control unit is used for calculating a correction voltage according to the position offset;
and the motor unit is used for correcting the position of the drum of the washing machine according to the correction voltage operation.
2. The device of claim 1, wherein the collecting unit is used for acquiring an offset voltage when the washing machine drum has a position offset through a position sensor and sending the offset voltage to the control unit.
3. The apparatus of claim 2, wherein the control unit comprises:
and the position regulator is used for receiving the offset voltage, calculating the correction rotating speed of the motor unit, generating corresponding correction voltage according to the correction rotating speed and controlling the motor unit to operate.
4. The apparatus of claim 3, wherein the control unit further comprises:
and the speed regulator is used for detecting actual rotation during the operation of the motor unit, judging whether an error value exists between the actual rotating speed and the correcting rotating speed, and if the error value exists between the actual rotating speed and the correcting rotating speed, increasing the correcting voltage by adopting PI regulation according to the error value to ensure that the actual rotating speed is the same as the correcting rotating speed.
5. The apparatus of claim 3, wherein the control unit further comprises:
and the current regulator is used for performing current compensation when the motor unit reaches the corrected rotating speed from the rotating speed of 0, so that the motor unit is at the rated current when the motor unit reaches the corrected rotating speed from the rotating speed of 0.
6. The apparatus of claim 5, wherein the current regulator is further configured to limit a value of current in the motor unit in the event of a failure of the motor unit.
7. The apparatus of claim 1, wherein the control unit further comprises:
and the power electronic converter is used for adjusting the correction voltage according to the model of the motor unit.
8. A control method of a drum washing machine, characterized in that the method comprises:
the position offset of the drum of the washing machine is collected in real time through a collecting unit;
calculating a correction voltage according to the position offset through a control unit;
and correcting the position of the drum of the washing machine by the motor unit operating according to the correction voltage.
9. A storage medium storing a computer program executable by one or more processors to implement the method of controlling a drum washing machine according to claim 8.
10. An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, the memory and the processor are communicatively connected, and the computer program, when executed by the processor, performs the drum washing machine control method according to claim 8.
CN202210136617.0A 2022-02-15 2022-02-15 Control device and method for drum washing machine, storage medium and electronic equipment Active CN114575108B (en)

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CN102199853A (en) * 2010-03-24 2011-09-28 松下电器产业株式会社 Drum washing machine
CN105155221A (en) * 2015-04-29 2015-12-16 无锡小天鹅股份有限公司 Washing machine load weighing control method and washing machine employing same
CN112080899A (en) * 2020-09-02 2020-12-15 安徽康佳同创电器有限公司 Self-adaptive balancing drum washing machine and self-adaptive balancing method thereof
US20210054554A1 (en) * 2018-06-14 2021-02-25 Guangdong Welling Motor Manufacturing Co., Ltd. Operation control method and system for clothing treatment device, clothing treatment device, and storage medium
CN113652838A (en) * 2021-09-06 2021-11-16 海信（山东）冰箱有限公司 Control method and device of washing machine and washing machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070193310A1 (en) * 2003-03-13 2007-08-23 Multibras S.A. Eletrodomesticos System and process for detecting a load of clothes in an automatic laundry machine
CN101736553A (en) * 2009-12-04 2010-06-16 合肥荣事达三洋电器股份有限公司 Method for detecting dehydration imbalance of inclined drum washing machine
CN102199853A (en) * 2010-03-24 2011-09-28 松下电器产业株式会社 Drum washing machine
CN105155221A (en) * 2015-04-29 2015-12-16 无锡小天鹅股份有限公司 Washing machine load weighing control method and washing machine employing same
US20210054554A1 (en) * 2018-06-14 2021-02-25 Guangdong Welling Motor Manufacturing Co., Ltd. Operation control method and system for clothing treatment device, clothing treatment device, and storage medium
CN112080899A (en) * 2020-09-02 2020-12-15 安徽康佳同创电器有限公司 Self-adaptive balancing drum washing machine and self-adaptive balancing method thereof
CN113652838A (en) * 2021-09-06 2021-11-16 海信（山东）冰箱有限公司 Control method and device of washing machine and washing machine

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