Control method, control device and washing machine system

Abstract

The present application provides a control method, a control device and a laundry system for a washing machine. The washing machine includes a motor, and the motor includes a power module. The method includes: a maximum temperature acquisition step: acquiring the current ambient temperature, and determining the maximum temperature allowed by the power module at least based on the current ambient temperature; a current temperature acquisition step: acquiring the current operating temperature of the power module to obtain the current temperature; a determination step: determining whether the washing machine runs to the end in the current working mode at least based on the relationship between the current temperature and the rated temperature and / or the maximum temperature. If it is determined that the washing machine does not run in the current working mode, the operating parameters of the washing machine are reduced, and the operating parameters include one of the start-stop ratio and the rotation speed. The method solves the problem in the prior art that the whole machine or components cannot be damaged due to overload operation.

Description

Technical Field

[0001] The present application relates to the field of washing machine operation, and in particular, to a control method, a control device and a washing machine system. Background Art

[0002] Some fully automatic drum washing machines on the market today can not only wash and dry, but also take care of clothes. There are many options for function programs, and the recommended weight of clothes is indicated in the instructions. However, some users over-stuff the clothes, resulting in abnormal use, or the aging of the motor causing failures and performance degradation, which ultimately leads to the washing machine not being able to operate normally.

[0003] Therefore, there is an urgent need for a control method for a washing machine when it is overloaded. Summary of the invention

[0004] The main purpose of the present application is to provide a control method, a control device and a washing machine system, so as to at least solve the problem in the prior art that damage to the whole machine or its components due to overload operation cannot be prevented.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a control method for a washing machine is provided, the washing machine includes a motor, the motor includes a power module, and the method includes: a maximum temperature acquisition step: acquiring the current ambient temperature, and determining the maximum temperature allowed by the power module at least based on the current ambient temperature; a current temperature acquisition step: acquiring the current operating temperature of the power module to obtain the current temperature; a determination step: determining whether the washing machine runs in the current operating mode to the end at least based on the relationship between the current temperature and the rated temperature and / or the maximum temperature, and if it is determined that the washing machine does not run in the current operating mode, reducing the operating parameters of the washing machine, the operating parameters including at least one of the start-stop ratio and the rotation speed, the rated temperature being the rated operating temperature of the power module, and the rated temperature being less than the maximum temperature.

[0006] Optionally, whether the washing machine is operating in the current operating mode is determined at least based on the relationship between the current temperature and the rated temperature and / or the maximum temperature, including: when the current temperature is less than or equal to the rated temperature, determining that the washing machine operates in the current operating mode until completion.

[0007] Optionally, the determination step includes: when the current temperature is greater than the rated temperature and less than or equal to the maximum temperature, acquiring the current operating power of the motor to obtain a first operating power; when the first operating power is less than or equal to the rated power, determining that the washing machine operates in the current operating mode until completion.

[0008] Optionally, the determination step also includes: when the current operating power is greater than the rated power and when the load of the washing machine is the first load, controlling the washing machine to enter a leveling program or an unwinding program, the load of the washing machine is the first load or the second load, and the weight corresponding to the first load is less than the weight of the second load; after the washing machine enters the leveling program or the unwinding program for a predetermined period of time, obtaining the current operating power of the motor to obtain a second operating power; when the second operating power is less than or equal to the rated power, determining that the washing machine runs in the current working mode until the end; when the second operating power is greater than the rated power, reducing the speed.

[0009] Optionally, the determination step also includes: when the current operating power is greater than the rated power and the load of the washing machine is a second load, reducing the start-stop ratio, the load condition of the washing machine is the first load or the second load, and the weight corresponding to the first load is greater than the weight of the second load.

[0010] Optionally, the determination step includes: when the current temperature is greater than the maximum temperature and the load of the washing machine is a first load, reducing the rotation speed; when the current temperature is greater than the maximum temperature and the load of the washing machine is a second load, reducing the start-stop ratio, the load condition of the washing machine is the first load or the second load, and the weight corresponding to the first load is greater than the weight of the second load.

[0011] Optionally, when the washing machine does not run to completion in the current operating mode, the method further includes: repeating the current temperature acquisition step and the determination step in sequence at least once until it is determined that the washing machine runs to completion in the current operating mode.

[0012] Optionally, the maximum temperature acquisition step includes: determining a current working stage of the washing machine, where the current working stage is a washing stage or a dehydration stage; and determining the maximum temperature according to the current working stage and the current ambient temperature.

[0013] According to another aspect of the present application, a control device for a washing machine is provided, comprising:

[0014] A first acquisition unit is used to execute a current temperature acquisition step: acquire the current ambient temperature, and determine the maximum temperature allowed by the power module according to the current ambient temperature;

[0015] A second acquisition unit is used to perform a current temperature acquisition step: acquiring a current operating temperature of the power module to obtain a current temperature;

[0016] A determination unit is used to perform a determination step: determining whether the washing machine runs to the end in the current working mode at least based on the relationship between the current temperature and the rated temperature and / or the maximum temperature; if it is determined that the washing machine does not run in the current working mode, reducing the operating parameters of the washing machine, the operating parameters including at least one of the start-stop ratio and the rotational speed, the rated temperature being the rated operating temperature of the power module, and the rated temperature being less than the maximum temperature.

[0017] According to another aspect of the present application, a laundry system is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of the methods described above.

[0018] Applying the technical solution of the present application, first, the maximum temperature acquisition step: obtain the current ambient temperature, and determine the maximum temperature allowed by the power module in the washing machine motor at least according to the current ambient temperature; then, obtain the current operating temperature of the power module to obtain the current temperature; finally, determine whether the washing machine is running in the current working mode to the end at least according to the relationship between the current temperature and the rated temperature and / or the maximum temperature, and reduce the operating parameters of the washing machine if it is determined that it is not running in the current working mode. Compared with the prior art, the solution of the present application obtains the temperature of the intelligent power module of the motor, compares it with the rated temperature and the maximum temperature, and adjusts the program parameters, so that the washing machine runs with the rated parameters or the maximum parameters allowed within the safe allowable range, which can not only complete the operation normally but also avoid the occurrence of failures or damage to the equipment, thereby solving the problem in the prior art that the whole machine or components cannot be damaged due to overload operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 A schematic flow chart of a method for controlling a washing machine according to an embodiment of the present application is shown;

[0021] Figure 2 A schematic flow chart of steps of a method for controlling a washing machine provided in an embodiment of the present application is shown;

[0022] Figure 3 A structural block diagram of a control device for a washing machine provided according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] As introduced in the background technology, the prior art cannot ensure the normal operation of the washing machine. To solve the above problem, the embodiments of the present application provide a control method, a control device and a washing machine system.

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Figure 1 FIG. 1 is a flow chart of a control method for a washing machine according to an embodiment of the present application. Figure 1 As shown, the method comprises the following steps:

[0029] Step S101, maximum temperature acquisition step: acquiring the current ambient temperature, and determining the maximum temperature allowed by the power module at least based on the current ambient temperature.

[0030] Specifically, the washing machine motor can obtain the current ambient temperature through the temperature sensing package, monitor the ambient temperature in real time, and transmit the data to the motor control system. The motor control system adjusts the working state of the motor according to the changes in the ambient temperature to ensure the normal operation of the washing machine at different temperatures, and calculates the ambient temperature accordingly to obtain the maximum temperature.

[0031] Specifically, when the washing machine is working normally, the operating temperature of the motor is generally between 60°C and 70°C. Within this temperature range, the washing machine motor can work normally and maintain stable performance to ensure the normal operation of the washing machine. If the temperature exceeds this range, the washing machine motor may be damaged or overheated, affecting the service life of the washing machine.

[0032] Step S102, current temperature acquisition step: acquiring the current operating temperature of the power module to obtain the current temperature.

[0033] Specifically, the current temperature determines the stability of the motor's output power, and the working environment temperature and working time will affect the current temperature.

[0034] Step S103, determination step: determine whether the above-mentioned washing machine runs to the end in the current working mode at least according to the relationship between the above-mentioned current temperature and the above-mentioned rated temperature and / or the above-mentioned maximum temperature, and if it is determined that it does not run in the above-mentioned current working mode, reduce the operating parameters of the above-mentioned washing machine, and the above-mentioned operating parameters include at least one of the start-stop ratio and the rotation speed, and the above-mentioned rated temperature is the rated operating temperature of the above-mentioned power module, and the above-mentioned rated temperature is less than the above-mentioned maximum temperature.

[0035] Specifically, as the current temperature rises, the motor power will also increase. When exceeding a certain temperature range, the motor power is more likely to surge, and the surge in power will lead to a surge in current. Excessive current may cause the whole machine to malfunction or even damage related components. Therefore, controlling the temperature of the motor's IPM (Intelligent Power Module) and the motor power within the normal operating range is very helpful for the performance and reliability of the whole machine.

[0036] In the above embodiment, first, the maximum temperature acquisition step: obtain the current ambient temperature, and determine the maximum temperature allowed by the power module in the washing machine motor at least according to the current ambient temperature; secondly, obtain the rated operating temperature of the power module to obtain the rated temperature; then, obtain the current operating temperature of the power module to obtain the current temperature; finally, determine whether the washing machine is running in the current working mode to the end at least according to the magnitude relationship between the current temperature and the rated temperature and / or the maximum temperature, and reduce the operating parameters of the washing machine if it is determined that the washing machine is not running in the current working mode. Compared with the prior art, the scheme of the present application obtains the temperature of the IPM of the motor, compares it with the rated temperature and the maximum temperature, and adjusts the program parameters, so that the washing machine runs with the rated parameters or the maximum parameters allowed within the safe allowable range, which can not only complete the operation normally but also avoid the occurrence of failures or damage to the equipment, thereby solving the problem that the prior art cannot prevent the damage of the whole machine or components due to overload operation.

[0037] In one embodiment of the present application, determining whether the washing machine is running in the current working mode at least based on the magnitude relationship between the current temperature and the rated temperature and / or the maximum temperature includes: when the current temperature is less than or equal to the rated temperature, determining that the washing machine is running in the current working mode until the end. In this method, when the current temperature is less than or equal to the rated temperature of the washing machine, the current working mode can be continued to be used until the washing machine completes the work, thereby further ensuring the normal operation of the washing machine.

[0038] In order to further determine whether to run to the end in the above-mentioned current working mode, in an embodiment of the present application, the above-mentioned determination step includes: when the above-mentioned current temperature is greater than the above-mentioned rated temperature and less than or equal to the above-mentioned maximum temperature, obtaining the current operating power of the above-mentioned motor to obtain the first operating power; when the above-mentioned first operating power is less than or equal to the above-mentioned rated power, determining that the above-mentioned washing machine runs to the end in the above-mentioned current working mode.

[0039] In another embodiment, the determination step further includes: when the current operating power is greater than the rated power and the load of the washing machine is the first load, controlling the washing machine to enter a leveling program or an unwinding program, the load of the washing machine is the first load or the second load, and the weight corresponding to the first load is less than the weight of the second load; after the washing machine enters the leveling program or the unwinding program for a predetermined time, obtaining the current operating power of the motor to obtain the second operating power; when the second operating power is less than or equal to the rated power, determining that the washing machine runs in the current working mode until the end; when the second operating power is greater than the rated power, reducing the rotation speed. In this method, when the weight corresponding to the washing machine corresponds to the weight corresponding to the first load, the operating parameters of the washing machine are adjusted according to the relationship between the current operating power and the rated power, so as to further ensure that the washing machine is in a normal operating state.

[0040] Specifically, when the first operating power is greater than the rated power, the leveling or unwinding process is entered, and then the power determination is performed again; when the second operating power is greater than the rated power or the current temperature is greater than the maximum temperature, the current program target speed is reduced by one gear, and then the temperature determination process of the motor IPM is entered again. Generally, the small and medium load level (i.e. the first load level) is due to excessive eccentricity, which leads to increased power.

[0041] Specifically, the current operating power and current temperature of the motor are both values ​​that can be monitored. Based on the measured values ​​of the current operating power and current temperature combined with the weight level of the current load in the drum, it is possible to determine the current operating state of the clothing processing device, whether it is normal operation or overload operation. Overload operation may cause protective suspension or failure. At the same time, if the motor is in an overloaded state for a long time, it will accelerate aging of the motor, resulting in a decrease in load capacity, affecting the performance of the entire machine.

[0042] In another embodiment, the determination step further includes: when the current operating power is greater than the rated power and the load of the washing machine is the second load, reducing the start-stop ratio, the load of the washing machine is the first load or the second load, and the weight corresponding to the first load is less than the weight of the second load. In this method, when the weight corresponding to the washing machine corresponds to the weight corresponding to the second load, the operating parameters of the washing machine are adjusted according to the relationship between the current operating power and the rated power, so as to further ensure that the washing machine is in a normal operating state. Generally, a large load (second load) is caused by a power increase due to a stall or a long-term high-load operation of the motor.

[0043] In order to more accurately adjust the operating parameters, thereby further ensuring that the working state of the washing machine is a normal operating state, in an embodiment of the present application, the above-mentioned determination step includes: when the above-mentioned current temperature is greater than the above-mentioned maximum temperature and the load of the above-mentioned washing machine is the first load, reducing the above-mentioned speed; when the above-mentioned current temperature is greater than the above-mentioned maximum temperature and the load of the above-mentioned washing machine is the second load, reducing the above-mentioned start-stop ratio, the load condition of the above-mentioned washing machine is the above-mentioned first load or the second load, and the weight corresponding to the above-mentioned first load is less than the weight of the above-mentioned second load.

[0044] In another embodiment, when the washing machine does not run to completion in the current working mode, the method further includes: repeating the current temperature acquisition step and the determination step at least once in sequence until it is determined that the washing machine runs to completion in the current working mode. In this method, when the washing machine does not complete the current working mode, the current temperature is repeatedly acquired and the next operation is determined until the washing machine completes the current working mode. This further ensures the stable operation of the program until the current working mode is completed.

[0045] In order to more accurately determine the maximum temperature of the normal operation of the washing machine, in one embodiment of the present application, the above-mentioned maximum temperature acquisition step includes: determining the current working stage of the above-mentioned washing machine, the above-mentioned current working stage is the washing stage or the dehydration stage; determining the above-mentioned maximum temperature according to the above-mentioned current working stage and the above-mentioned current ambient temperature.

[0046] Specifically, for the same current ambient temperature, if it corresponds to different working stages, the determined maximum temperature may be different. For some washing machines, in the dehydration working stage, 90°C < maximum working temperature ≤ 100°C; in the washing working stage, 80°C < maximum working temperature ≤ 100°C.

[0047] Specifically, the rated operating temperature, motor revolutions per minute and rated power of the washing machine in these two working stages are different. For some washing machines, in the dehydration working stage, 70℃<rated operating temperature≤90℃, 100rpm<motor revolutions per minute≤200rpm, and 700W<rated power≤800W; in the washing working stage, 60℃<rated operating temperature≤80℃, 10rpm<motor revolutions per minute≤20rpm, and 300W<rated power≤500W.

[0048] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the method for controlling the normal operation of a washing machine of the present application will be described in detail below in combination with specific embodiments.

[0049] This embodiment relates to a specific washing machine control method, comprising the following steps:

[0050] start;

[0051] Get the current ambient temperature and calculate the maximum temperature Tmax based on the current ambient temperature;

[0052] Using the motor to weigh, determine whether it is the second load, that is, determine whether it is a heavy load;

[0053] In case of first load instead of second load:

[0054] The current operating temperature of the power module is obtained to obtain the current temperature T. When the current temperature T is less than or equal to the rated temperature Trated, the power module is operated in the current operating mode, that is, normal operation.

[0055] When the current temperature T is between the rated temperature Trated and the maximum temperature Tmax, the current operating power of the motor is obtained to obtain the first operating power P1. When the first operating power P1 is less than or equal to the rated power Prated, the washing machine is controlled to operate normally; when the first operating power P1 is greater than the rated power Prated, the washing machine enters the leveling or unwinding program; after the program is performed for a certain period of time, the current operating power of the motor is obtained to obtain the second operating power P2. When the second operating power P2 is less than or equal to the rated power Prated, the washing machine is controlled to operate normally; when the second operating power P2 is greater than the rated power Prated, the motor speed is reduced;

[0056] When the current temperature T is greater than the maximum temperature Tmax, the motor speed is reduced, and the steps of obtaining the current operating temperature of the power module and the subsequent steps are re-executed at least once until it is determined that the washing machine runs in a normal operating state until the end;

[0057] In case of the second load:

[0058] The current operating temperature of the power module is obtained to obtain the current temperature T. When the current temperature T is less than or equal to the rated temperature Trated, the power module is operated in the current operating mode, that is, normal operation.

[0059] When the current temperature T is between the rated temperature Trated and the maximum temperature Tmax, compare the current operating power P3 with the rated power Prated; when the current operating power P3 is less than or equal to the rated power Prated, control the washing machine to operate normally; when the current operating power P3 is greater than the rated power Prated, reduce the motor start-stop ratio;

[0060] When the current temperature is greater than the maximum temperature, the motor start-stop ratio is reduced, and the steps of obtaining the current operating temperature of the power module and subsequent steps are re-executed at least once until it is determined that the washing machine runs in a normal operating state to the end.

[0061] The main process of this process can be found in Figure 2 shown.

[0062] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0063] The present application also provides a control device for a washing machine. It should be noted that the control device for a washing machine in the present application can be used to execute the control method for a washing machine provided in the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions thereof will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0064] The following is an introduction to the control device of the washing machine provided in the embodiment of the present application.

[0065] Figure 3 Schematic diagram of a control device for a washing machine according to an embodiment of the present application. Figure 3 As shown, the device comprises:

[0066] The first acquisition unit 10 is used to execute the current temperature acquisition step: acquire the current ambient temperature, and determine the maximum temperature allowed by the power module at least according to the current ambient temperature.

[0067] Specifically, the washing machine motor can obtain the current ambient temperature through the temperature sensing package, monitor the ambient temperature in real time, and transmit the data to the motor control system. The motor control system adjusts the working state of the motor according to the changes in the ambient temperature to ensure the normal operation of the washing machine at different temperatures, and calculates the ambient temperature accordingly to obtain the maximum temperature.

[0068] Specifically, when the washing machine is working normally, the operating temperature of the motor is generally between 60°C and 70°C. Within this temperature range, the washing machine motor can work normally and maintain stable performance to ensure the normal operation of the washing machine. If the temperature exceeds this range, the washing machine motor may be damaged or overheated, affecting the service life of the washing machine.

[0069] The second acquisition unit 20 is used to execute the current temperature acquisition step: acquire the current operating temperature of the power module to obtain the current temperature.

[0070] Specifically, the current temperature determines the stability of the motor's output power, and the working environment temperature and working time will affect the current temperature.

[0071] The determination unit 30 is used to perform a determination step: determining whether the washing machine is operated to the end in the current working mode at least based on the relationship between the current temperature and the rated temperature and / or the maximum temperature; if it is determined that the washing machine is not operated in the current working mode, reducing the operating parameters of the washing machine, wherein the operating parameters include at least one of the start-stop ratio and the rotation speed; the rated temperature is the rated operating temperature of the power module, and the rated temperature is less than the maximum temperature.

[0072] Specifically, as the current temperature rises, the motor power will also increase. When exceeding a certain temperature range, the motor power is more likely to surge, and the surge in power will cause a surge in current. Excessive current may cause the whole machine to malfunction or even damage related components. Therefore, controlling the temperature of the motor's IPM and the motor power within the normal working range is very helpful for the performance and reliability of the whole machine.

[0073] In the above embodiment, first, the maximum temperature acquisition step: obtain the current ambient temperature, and determine the maximum temperature allowed by the power module in the washing machine motor at least according to the current ambient temperature; secondly, obtain the rated operating temperature of the power module to obtain the rated temperature; then, obtain the current operating temperature of the power module to obtain the current temperature; finally, determine whether the washing machine is running in the current working mode to the end at least according to the magnitude relationship between the current temperature and the rated temperature and / or the maximum temperature, and reduce the operating parameters of the washing machine if it is determined that the washing machine is not running in the current working mode. Compared with the prior art, the scheme of the present application obtains the temperature of the IPM of the motor, compares it with the rated temperature and the maximum temperature, and adjusts the program parameters, so that the washing machine runs with the rated parameters or the maximum parameters allowed within the safe allowable range, which can not only complete the operation normally but also avoid the occurrence of failures or damage to the equipment, thereby solving the problem that the prior art cannot prevent the damage of the whole machine or components due to overload operation.

[0074] In one embodiment of the present application, the determination unit includes a first determination module, wherein the first determination module is used to determine that the washing machine runs in the current working mode until the end when the current temperature is less than or equal to the rated temperature. In this solution, when the current temperature is less than or equal to the rated temperature of the washing machine, the current working mode can be continued to be used until the washing machine completes the operation, thereby further ensuring the normal operation of the washing machine.

[0075] In order to further determine whether to run to the end in the above-mentioned current working mode, in one embodiment of the present application, the determination unit includes a first acquisition module and a second determination module, wherein the first acquisition module is used to obtain the current operating power of the above-mentioned motor to obtain the first operating power when the above-mentioned current temperature is greater than the above-mentioned rated temperature and less than or equal to the above-mentioned maximum temperature; the second determination module is used to determine that the above-mentioned washing machine runs to the end in the above-mentioned current working mode when the above-mentioned first operating power is less than or equal to the above-mentioned rated power.

[0076] In another embodiment, the determination unit further includes a control module, a second acquisition module, a third determination module and a first reduction module, wherein the control module is used to control the washing machine to enter a leveling program or an unwinding program when the current operating power is greater than the rated power and when the load of the washing machine is the first load, the load of the washing machine is the first load or the second load, and the weight corresponding to the first load is less than the weight of the second load; the second acquisition module is used to obtain the current operating power of the motor and obtain the second operating power after the washing machine enters the leveling program or the unwinding program for a predetermined time; the third determination module is used to determine that the washing machine runs in the current working mode until the end when the second operating power is less than or equal to the rated power; the first reduction module is used to reduce the speed when the second operating power is greater than the rated power. In this solution, when the weight corresponding to the washing machine corresponds to the weight corresponding to the first load, the operating parameters of the washing machine are adjusted according to the relationship between the current operating power and the rated power, thereby further ensuring that the washing machine is in a normal operating state.

[0077] Specifically, when the current operating power is greater than the rated power, the leveling or unwinding process is entered, and then the power determination is performed again; if the second operating power is greater than the rated power or the current temperature is greater than the maximum temperature, the current program target speed is reduced by one gear, and then the temperature determination process of the motor IPM is entered again. Generally, small and medium load levels are caused by excessive eccentricity, which leads to increased power.

[0078] Specifically, the current operating power and current temperature of the motor are both values ​​that can be monitored. Based on the measured values ​​of the current operating power and current temperature combined with the weight level of the current load in the drum, it is possible to determine the current operating state of the clothing processing device, whether it is normal operation or overload operation. Overload operation may cause protective suspension or failure. At the same time, if the motor is in an overloaded state for a long time, it will accelerate aging of the motor, resulting in a decrease in load capacity, affecting the performance of the entire machine.

[0079] In another embodiment, the determination unit further includes a second reduction module, wherein the second reduction module is used to reduce the start-stop ratio when the current operating power is greater than the rated power and the load of the washing machine is the second load, the load of the washing machine is the first load or the second load, and the weight corresponding to the first load is less than the weight of the second load. In this solution, when the weight corresponding to the washing machine corresponds to the weight corresponding to the second load, the operating parameters of the washing machine are adjusted according to the relationship between the current operating power and the rated power, thereby further ensuring that the washing machine is in a normal operating state.

[0080] In order to more accurately adjust the operating parameters, thereby further ensuring that the working state of the washing machine is a normal operating state, in one embodiment of the present application, the determination unit includes a third reduction module and a fourth reduction module, wherein the third reduction module is used to reduce the above-mentioned rotation speed when the above-mentioned current temperature is greater than the above-mentioned maximum temperature and the load of the above-mentioned washing machine is the first load; the fourth reduction module is used to reduce the above-mentioned start-stop ratio when the above-mentioned current temperature is greater than the above-mentioned maximum temperature and the load of the above-mentioned washing machine is the second load, and the load condition of the above-mentioned washing machine is the above-mentioned first load or the second load, and the weight corresponding to the above-mentioned first load is less than the weight of the above-mentioned second load. For example: the change of the start-stop ratio can be downgraded from start: stop = 2:1 to 1.5:1; 1:1; 0.5:1, and so on.

[0081] In another embodiment, the control device further includes a repeating unit, wherein the repeating unit is used to sequentially repeat the current temperature acquisition step and the determination step at least once until it is determined that the washing machine has finished running in the current working mode. In this solution, when the washing machine has not completed the current working mode, the current temperature is repeatedly acquired and the next operation is determined until the washing machine completes the current working mode. This further ensures the stable operation of the program until the current working mode is completed.

[0082] In order to more accurately determine the maximum temperature of the normal operation of the washing machine, in one embodiment of the present application, the first acquisition unit includes a fourth determination module and a fifth determination module, wherein the fourth determination module is used to determine the current working stage of the above-mentioned washing machine, and the above-mentioned current working stage is the washing stage or the dehydration stage; the fifth determination module is used to determine the above-mentioned maximum temperature based on the above-mentioned current working stage and the above-mentioned current ambient temperature.

[0083] Specifically, for the same current ambient temperature, if it corresponds to different working stages, the determined maximum temperature may be different. For some washing machines, in the dehydration working stage, 90°C < maximum working temperature ≤ 100°C; in the washing working stage, 80°C < maximum working temperature ≤ 100°C.

[0084] Specifically, the rated operating temperature, motor revolutions per minute and rated power of the washing machine in these two working stages are different. For some washing machines, in the dehydration working stage, 70℃<rated operating temperature≤90℃, 100rpm<motor revolutions per minute≤200rpm, and 700W<rated power≤800W; in the washing working stage, 60℃<rated operating temperature≤80℃, 10rpm<motor revolutions per minute≤20rpm, and 300W<rated power≤500W.

[0085] The control device of the washing machine includes a processor and a memory. The first acquisition unit, the second acquisition unit and the determination unit are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions. The modules are all located in the same processor; or, the modules are located in different processors in any combination.

[0086] The processor includes a kernel, which calls the corresponding program unit from the memory. One or more kernels can be set, and the normal operation of the washing machine can be ensured by adjusting the kernel parameters.

[0087] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0088] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the control method of the washing machine, the method comprising:

[0089] Step S101, maximum temperature acquisition step: acquiring the current ambient temperature, and determining the maximum temperature allowed by the power module at least based on the current ambient temperature.

[0090] Step S102, current temperature acquisition step: acquiring the current operating temperature of the power module to obtain the current temperature.

[0091] Step S103, determination step: determine whether the above-mentioned washing machine runs to the end in the current working mode at least according to the relationship between the above-mentioned current temperature and the above-mentioned rated temperature and / or the above-mentioned maximum temperature, and if it is determined that it does not run in the above-mentioned current working mode, reduce the operating parameters of the above-mentioned washing machine, and the above-mentioned operating parameters include at least one of the start-stop ratio and the rotation speed, and the above-mentioned rated temperature is the rated operating temperature of the above-mentioned power module, and the above-mentioned rated temperature is less than the above-mentioned maximum temperature.

[0092] An embodiment of the present invention provides a processor, the processor is used to run a program, wherein when the program is run, the control method of the washing machine is executed, the method comprising:

[0093] Step S101, maximum temperature acquisition step: acquiring the current ambient temperature, and determining the maximum temperature allowed by the power module at least based on the current ambient temperature.

[0094] Step S102, current temperature acquisition step: acquiring the current operating temperature of the power module to obtain the current temperature.

[0095] Step S103, determination step: determine whether the above-mentioned washing machine runs to the end in the current working mode at least according to the relationship between the above-mentioned current temperature and the above-mentioned rated temperature and / or the above-mentioned maximum temperature, and if it is determined that it does not run in the above-mentioned current working mode, reduce the operating parameters of the above-mentioned washing machine, and the above-mentioned operating parameters include at least one of the start-stop ratio and the rotation speed, and the above-mentioned rated temperature is the rated operating temperature of the above-mentioned power module, and the above-mentioned rated temperature is less than the above-mentioned maximum temperature.

[0096] An embodiment of the present invention provides a device, the device including a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, at least the following steps are implemented:

[0097] Step S101, maximum temperature acquisition step: acquiring the current ambient temperature, and determining the maximum temperature allowed by the power module at least based on the current ambient temperature.

[0098] Step S102, current temperature acquisition step: acquiring the current operating temperature of the power module to obtain the current temperature.

[0099] Step S103, determination step: determine whether the above-mentioned washing machine runs to the end in the current working mode at least according to the relationship between the above-mentioned current temperature and the above-mentioned rated temperature and / or the above-mentioned maximum temperature, and if it is determined that it does not run in the above-mentioned current working mode, reduce the operating parameters of the above-mentioned washing machine, and the above-mentioned operating parameters include at least one of the start-stop ratio and the rotation speed, and the above-mentioned rated temperature is the rated operating temperature of the above-mentioned power module, and the above-mentioned rated temperature is less than the above-mentioned maximum temperature.

[0100] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0101] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0102] Step S101, maximum temperature acquisition step: acquiring the current ambient temperature, and determining the maximum temperature allowed by the power module at least based on the current ambient temperature.

[0103] Step S102, current temperature acquisition step: acquiring the current operating temperature of the power module to obtain the current temperature.

[0104] Step S103, determination step: determine whether the above-mentioned washing machine runs to the end in the current working mode at least according to the relationship between the above-mentioned current temperature and the above-mentioned rated temperature and / or the above-mentioned maximum temperature, and if it is determined that it does not run in the above-mentioned current working mode, reduce the operating parameters of the above-mentioned washing machine, and the above-mentioned operating parameters include at least one of the start-stop ratio and the rotation speed, and the above-mentioned rated temperature is the rated operating temperature of the above-mentioned power module, and the above-mentioned rated temperature is less than the above-mentioned maximum temperature.

[0105] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0106] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0107] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0108] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0109] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0110] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0111] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0112] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes and other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0113] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0114] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0115] In the above embodiment, first, the maximum temperature acquisition step: obtain the current ambient temperature, and determine the maximum temperature allowed by the power module in the washing machine motor at least according to the current ambient temperature; secondly, obtain the rated operating temperature of the power module to obtain the rated temperature; then, obtain the current operating temperature of the power module to obtain the current temperature; finally, determine whether the washing machine is running in the current working mode to the end at least according to the magnitude relationship between the current temperature and the rated temperature and / or the maximum temperature, and reduce the operating parameters of the washing machine if it is determined that the washing machine is not running in the current working mode. Compared with the prior art, the scheme of the present application obtains the temperature of the IPM of the motor, compares it with the rated temperature and the maximum temperature, and adjusts the program parameters, so that the washing machine runs with the rated parameters or the maximum parameters allowed within the safe allowable range, which can not only complete the operation normally but also avoid the occurrence of failures or damage to the equipment, thereby solving the problem that the prior art cannot prevent the damage of the whole machine or components due to overload operation.

[0116] The above 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 variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for controlling a washing machine, characterized in that: The washing machine includes a motor, wherein the motor includes a power module, including: Maximum temperature acquisition step: acquiring the current ambient temperature, and determining the maximum temperature allowed by the power module at least according to the current ambient temperature; Current temperature acquisition step: acquiring the current operating temperature of the power module to obtain the current temperature; Determining step: determining whether the washing machine is operated to the end in the current working mode at least according to the magnitude relationship between the current temperature and the rated temperature and / or the maximum temperature, and if it is determined that the washing machine is not operated in the current working mode, reducing the operating parameters of the washing machine, wherein the operating parameters include at least one of a start-stop ratio and a rotation speed, the rated temperature is the rated operating temperature of the power module, and the rated temperature is less than the maximum temperature, The determining step comprises: When the current temperature is greater than the rated temperature and less than or equal to the maximum temperature, obtaining the current operating power of the motor to obtain a first operating power; When the first operating power is less than or equal to the rated power, it is determined that the washing machine operates in the current operating mode until completion.

2. The control method of the washing machine according to claim 1, characterized in that: Determining whether the washing machine is running in the current working mode at least according to the magnitude relationship between the current temperature and the rated temperature and / or the maximum temperature includes: When the current temperature is less than or equal to the rated temperature, it is determined that the washing machine operates in the current operating mode until completion.

3. The control method of the washing machine according to claim 1, characterized in that: The determining step further includes: When the current operating power is greater than the rated power and the load of the washing machine is a first load, controlling the washing machine to enter a leveling program or an unwinding program, the load of the washing machine is the first load or the second load, and the weight corresponding to the first load is less than the weight of the second load; After the washing machine enters the leveling program or the unwinding program for a predetermined time, obtaining the current operating power of the motor to obtain a second operating power; When the second operating power is less than or equal to the rated power, determining that the washing machine runs in the current operating mode until completion; When the second operating power is greater than the rated power, the rotational speed is reduced.

4. The control method of the washing machine according to claim 1, characterized in that: The determining step further includes: When the current operating power is greater than the rated power and the load of the washing machine is the second load, the start-stop ratio is reduced, the load of the washing machine is the first load or the second load, and the weight corresponding to the first load is less than the weight of the second load.

5. The control method of the washing machine according to claim 1, characterized in that: The determining step comprises: When the current temperature is greater than the maximum temperature and the load of the washing machine is a first load, reducing the rotation speed; When the current temperature is greater than the maximum temperature and the load of the washing machine is the second load, the start-stop ratio is reduced, the load of the washing machine is the first load or the second load, and the weight corresponding to the first load is less than the weight of the second load.

6. The control method of a washing machine according to any one of claims 3 to 5, characterized in that: In the case that the washing machine does not run to the end in the current working mode, the method further includes: The current temperature acquisition step and the determination step are sequentially repeated at least once until it is determined that the washing machine has finished operating in the current operating mode.

7. The control method of a washing machine according to any one of claims 1 to 5, characterized in that: The maximum temperature acquisition step comprises: Determining a current working stage of the washing machine, wherein the current working stage is a washing stage or a dehydration stage; The maximum temperature is determined according to the current working stage and the current ambient temperature.

8. A control device for a washing machine, characterized in that: The washing machine comprises a motor, and the motor comprises a power module, including: A first acquisition unit is used to perform a current temperature acquisition step: acquire the current ambient temperature, and determine the maximum temperature allowed by the power module at least according to the current ambient temperature; A second acquisition unit is used to perform a current temperature acquisition step: acquiring a current operating temperature of the power module to obtain a current temperature; a determination unit, configured to perform a determination step: determining whether the washing machine is operated to the end in the current working mode at least according to a magnitude relationship between the current temperature and the rated temperature and / or the maximum temperature; if it is determined that the washing machine is not operated in the current working mode, reducing an operating parameter of the washing machine, wherein the operating parameter includes at least one of a start-stop ratio and a rotation speed; the rated temperature is a rated operating temperature of the power module, and the rated temperature is less than the maximum temperature; The determination unit includes a first acquisition module and a second determination module, wherein the first acquisition module is used to acquire the current operating power of the motor to obtain the first operating power when the current temperature is greater than the rated temperature and less than or equal to the maximum temperature; the second determination module is used to determine that the washing machine operates in the current working mode until the end when the first operating power is less than or equal to the rated power.

9. A laundry system, characterized in that: include: One or more processors, a memory, one or more programs, and a washing machine, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a control method for executing the washing machine described in any one of claims 1 to 7.

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