Washing machine control method and device, electronic equipment and storage medium

Abstract

The invention provides a washing machine control method and device, electronic equipment and a storage medium, and belongs to the technical field of washing machines. If the power supply voltage is lower than a preset voltage, controlling a motor to start based on a preset time constant; if the motor is successfully started, controlling the washing machine to execute a washing program; wherein the preset time constant is larger than the time constant of the motor under the nominal voltage, and the preset time constant is in negative correlation with the power supply voltage. According to the method provided by the invention, when the power supply voltage is lower than the first preset voltage, it is indicated that the current voltage is low, so that the motor is started according to the preset time constant larger than the time constant under the nominal voltage, the acceleration of the motor in the starting process is reduced, and the motor is slowly accelerated under the condition that the torque is limited; the conditions of locked-rotor and starting failure are effectively avoided, and the robustness of the system in a severe power grid environment is improved.

Description

Technical Field

[0001] This application belongs to the field of washing machine technology, and particularly relates to a washing machine control method, control device, electronic device and storage medium. Background Technology

[0002] As a common household appliance, the operational stability of a washing machine is greatly affected by the power supply environment.

[0003] In areas with unstable power grid voltage or remote areas, the power supply voltage may be lower than the washing machine's nominal operating voltage (e.g., 220V). Under such low voltage conditions, if the motor is started directly with the nominal parameters, insufficient starting torque may cause the motor to stall, fail to start, or even burn out, affecting product reliability and user experience. Summary of the Invention

[0004] This application provides a washing machine control method, control device, electronic device, and storage medium to solve the problem of difficulty in starting existing washing machines under low voltage.

[0005] This application provides a washing machine control method, the method comprising: Obtain the power supply voltage; If the power supply voltage is lower than the preset voltage, the motor is started based on the preset time constant; If the motor starts successfully, the washing machine will be controlled to execute the washing program; The preset time constant is greater than the time constant of the motor under the nominal voltage, and the preset time constant is negatively correlated with the power supply voltage.

[0006] Optionally, the step of controlling the motor start based on a preset time constant includes: If the power supply voltage is lower than the second preset voltage, the motor is controlled to drive the inner cylinder to run based on the preset time constant and to reach the first preset speed. After the first preset time period, the motor is controlled to drive the inner cylinder to run based on the preset time constant, and the second preset speed is reached; Wherein, the second preset voltage is lower than the first preset voltage, and the second preset rotational speed is greater than the first preset rotational speed.

[0007] Optionally, after reaching the second preset rotational speed, the method further includes: The rotational speed of the inner cylinder and the current of the motor are obtained within a second preset time period; If the difference between the speed and the second preset speed is within the preset difference range, and the current is within the preset safety range, then the motor is determined to have started successfully.

[0008] Optionally, the copper core wire diameter of the motor winding is 0.6 mm to 0.8 mm.

[0009] Optionally, after the washing machine is controlled to execute a washing program, the method further includes: When the washing machine executes the drying program, the air pressure parameters are acquired; When the air pressure parameter is lower than the preset air pressure parameter, the compressor frequency and expansion valve opening are adjusted based on the air pressure parameter to keep the drying temperature between 40°C and 42°C.

[0010] Optionally, the method further includes: Determine the altitude parameters based on the air pressure parameters; The adjustment of compressor frequency and expansion valve opening based on the gas pressure parameters includes: Based on the altitude-energy efficiency mapping relationship, the corresponding energy efficiency value is determined according to the altitude parameters; The compressor frequency and the expansion valve opening are adjusted based on the energy efficiency value.

[0011] Optionally, controlling the washing machine to execute a washing program includes: Control the water intake of the washing machine and preheat it to the target temperature; Control the washing machine to execute the main wash program at the target temperature; The washing machine is controlled to lower the preset temperature based on the target temperature and execute the rinsing program.

[0012] This application embodiment also provides a washing machine control device, the device comprising: The power supply voltage acquisition module is configured to acquire the power supply voltage. The control module is configured to control the motor to start based on a preset time constant if the power supply voltage is lower than a preset voltage; and to control the washing machine to execute a washing program if the motor starts successfully. The preset time constant is greater than the time constant of the motor under the nominal voltage, and the preset time constant is negatively correlated with the power supply voltage.

[0013] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the washing machine control method described above.

[0014] This application embodiment also provides a storage medium storing control instructions, which, when executed by a processor, implement the washing machine control method described above.

[0015] The washing machine control method provided in this application embodiment indicates that when the power supply voltage is lower than the first preset voltage, the current voltage is low. Therefore, the motor is started according to a preset time constant that is larger than the time constant under the nominal voltage, thereby reducing the acceleration during the motor start-up process. This allows the motor to accelerate smoothly under torque constraints, effectively avoiding stalling and start-up failures, and improving the robustness of the system in harsh power grid environments. Finally, the washing program is executed only after the motor has started successfully, i.e., water is introduced only after the motor has started successfully, reducing the load on the motor during start-up and improving the start-up success rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0018] Figure 1 This is a first flowchart illustrating the washing machine control method provided in an embodiment of this application.

[0019] Figure 2 This is a second flowchart illustrating the washing machine control method provided in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the third process of the washing machine control method provided in the embodiments of this application.

[0021] Figure 4 This is a schematic diagram of the structure of a washing machine control device provided in an embodiment of this application.

[0022] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] In the description of the embodiments of this application, "module" and "processor" can include hardware, software, or a combination of both. A module can include hardware circuitry, various suitable sensors, communication ports, and memory, and may also include software components, such as program code, or a combination of software and hardware. A processor can be a central processing unit, a microprocessor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing capabilities. The processor can be implemented in software, in hardware, or a combination of both. Non-transitory computer-readable storage media includes any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc.

[0025] This application provides a washing machine control method, control device, electronic device, and storage medium to solve the problem of difficulty in starting existing washing machines under low voltage. The following description is in conjunction with the accompanying drawings.

[0026] For the washing machine control method provided in this application's embodiments, please refer to [link / reference needed]. Figure 1 The method includes the following steps: S101: Get the power supply voltage.

[0027] Here, power supply voltage refers to the voltage value of the power output that provides electrical energy to electronic devices or circuits (in this case, clothing handling equipment such as a washing machine). The method of obtaining the power supply voltage is not further limited here. For example, when the washing machine is powered on or preparing to start, the current AC power supply voltage value can be sampled in real time through its internal voltage detection circuit (such as including an ACS712 sensor) or related power management chip.

[0028] S102: If the power supply voltage is lower than the first preset voltage, the motor is started based on a preset time constant. The preset time constant is greater than the time constant of the motor under its nominal voltage, and the preset time constant is negatively correlated with the power supply voltage.

[0029] The nominal voltage is 220V, and the first preset voltage is less than or equal to the nominal voltage. The value of the first preset voltage is not further limited here. For example, it can be 220V, 210V, 198V, 190V, 187V, etc.

[0030] The preset time constant is a parameter that controls the speed increase of the motor. It should be understood that a larger preset time constant results in a smoother speed increase. Since the preset time constant is negatively correlated with the power supply voltage, a lower power supply voltage allows for a larger preset time constant, resulting in a slower and gentler motor start-up process. This helps prevent motor stalling, start-up failure, and even motor burnout.

[0031] For example, the preset time constant can be determined based on the mapping relationship of voltage time constant, wherein the mapping relationship of voltage time constant is the mapping relationship between power supply voltage and preset time constant. For example, when the power supply voltage is greater than or equal to 190V, the preset time constant is 0.5 seconds; when the power supply voltage is greater than or equal to 170V and less than 190V, the preset time constant is 0.8 seconds; when the power supply voltage is greater than or equal to 160V and less than 170V, the preset time constant is 1.2 seconds.

[0032] S103: If the motor starts successfully, control the washing machine to execute the washing program.

[0033] The washing machine control method provided in this application, when the power supply voltage is lower than a first preset voltage, indicates that the current voltage is low. Therefore, the motor is started according to a preset time constant larger than the time constant under the nominal voltage, thereby reducing the acceleration during the motor start-up process. This allows the motor to accelerate smoothly under torque constraints, effectively avoiding stalling and start-up failures, and improving the system's robustness in harsh power grid environments. Finally, the washing program is executed only after the motor has successfully started, i.e., water is introduced only after the motor has successfully started, reducing the load on the motor during start-up and increasing the start-up success rate.

[0034] Optionally, controlling the motor start based on a preset time constant includes: if the power supply voltage is lower than a second preset voltage, controlling the motor to drive the inner cylinder to run based on the preset time constant and reach a first preset speed; after a first preset time, controlling the motor to drive the inner cylinder to run based on the preset time constant and reach a second preset speed; wherein the second preset voltage is lower than the first preset voltage, and the second preset speed is greater than the first preset speed. The second preset voltage can be 170V, 175V, etc. The first preset speed can be between 20 rpm and 25 rpm, such as 20 rpm, 23 rpm, 25 rpm, etc. The second preset speed can be between 40 rpm and 45 rpm, such as 40 rpm, 43 rpm, 45 rpm, etc.

[0035] If the power supply voltage is lower than the second preset voltage, it indicates that the current voltage is extremely low. The motor can be controlled to accelerate with the corresponding preset time constant and drive the inner cylinder to rotate to a smaller first preset speed, such as 20 rpm, so that the motor accelerates with a larger preset time constant and avoids stalling.

[0036] The inner drum is controlled to run at a first preset speed for a first preset time, which not only shakes the clothes in the inner drum and improves the washing effect, but also puts less pressure on the motor, allowing the motor to start smoothly.

[0037] Once the inner cylinder reaches the first preset speed, it indicates that the first stage of soft start has been successful. This means that the current preset time constant can meet the current power supply voltage requirements, allowing the motor to start smoothly. Therefore, based on the same preset time constant, the motor is controlled to continue accelerating, so that the inner cylinder reaches a higher second preset speed, such as 40 rpm. Through graded and exploratory acceleration, it is ensured that the motor can start and run stably in the future, providing reliability and safety for subsequent operation and avoiding the motor from directly reaching high speed, which could lead to stalling or even burnout.

[0038] Optionally, please refer to Figure 3 The motor is started based on a preset time constant, including: if the power supply voltage is greater than or equal to a second preset voltage and lower than a first preset voltage, the motor is controlled to drive the inner cylinder to run based on the preset time constant and reach a second preset speed; wherein the second preset voltage is lower than the first preset voltage and the second preset speed is greater than the first preset speed.

[0039] When the power supply voltage is greater than or equal to the second preset voltage and lower than the first preset voltage, it means that although the power supply voltage is low, it can bear a certain load. The motor can be directly controlled to drive the inner cylinder to accelerate to the second preset speed according to the preset time constant, without the need for staged acceleration, thus improving the starting efficiency.

[0040] Optionally, after reaching the second preset speed, the method further includes: obtaining the speed of the inner cylinder and the current of the motor within a second preset time period; if the speed difference between the speed and the second preset speed is within a preset difference and the current is within a preset safety range, then the motor is determined to have started successfully.

[0041] The specific value of the second preset duration is not further limited here. For example, it can be 3 to 5 seconds. During this period, the actual rotation speed of the inner cylinder is continuously obtained through the encoder or Hall sensor, and the real-time operating current of the motor is obtained through the current sensor.

[0042] If the difference between the actual speed and the second preset speed remains within the preset difference (e.g., 5 rpm), and the real-time operating current of the motor is stable within the preset safe current range (i.e., no abnormal overcurrent occurs), then the motor is considered to have started successfully. By verifying both speed and current to confirm a successful start, the reliability and safety of the starting process are ensured.

[0043] Optionally, the copper core wire diameter of the motor winding is 0.6mm to 0.8mm, such as 0.6mm, 0.7mm, or 0.8mm.

[0044] Preferably, the copper core wire diameter of the motor winding is 0.7mm. The copper core wire diameter of existing motor windings is usually 0.5mm. By increasing the wire diameter, the resistance is reduced from 1.2Ω to 0.8Ω, and the starting torque is increased by 30%. This wire diameter achieves a good balance between electrical performance and mechanical strength. Its cross-sectional area is sufficient to carry the slightly longer rated current that may be required during low-voltage starting, and it has better heat resistance and resistance to mechanical stress.

[0045] Optionally, the washing machine uses a CBB61 capacitor specifically designed for high-altitude areas, with a capacitance value 20% higher than the conventional value.

[0046] Optionally, the washing machine adopts a bidirectional thyristor overcurrent protection module with a rated current of 30A and a response time of less than or equal to 1ms.

[0047] Optionally, if the motor fails to start, i.e., the rotation speed of the washing machine drum or the current of the motor does not meet the above requirements within the second preset time period, the motor is controlled to start again based on the preset time constant; if the motor fails to start after three attempts, an alarm message is pushed and a prompt to check the voltage is given.

[0048] If the motor fails to start, it will restart again, avoiding starting failures caused by occasional issues such as momentary voltage fluctuations or temporary obstruction by clothing. This reduces false alarms and shutdowns caused by brief interference, prevents users from blindly operating or reporting for repair, lowers after-sales costs and customer dissatisfaction, and improves the overall reliability of the machine. At the same time, limiting the number of starts (maximum three) effectively prevents the motor from running for extended periods in abnormal conditions, protecting the motor and drive system while also preventing fire risks caused by stalled operation or other abnormal situations.

[0049] Furthermore, an appropriate delay can be added between each retry to prevent the motor from overheating and the drive circuit from overloading.

[0050] Optionally, after controlling the washing machine to execute the washing program, the method further includes: when the washing machine executes the drying program, acquiring air pressure parameters; when the air pressure parameters are lower than preset air pressure parameters, adjusting the compressor frequency and expansion valve opening based on the air pressure parameters to keep the drying temperature between 40°C and 42°C.

[0051] The air pressure parameter refers to the atmospheric pressure of the current environment in which the washing machine is located, which can be obtained through the built-in air pressure sensor. The preset air pressure parameter can be a standard atmospheric pressure reference value (such as sea level air pressure).

[0052] When the air pressure parameter is lower than the preset air pressure parameter, it indicates that the washing machine is currently in a high-altitude environment. By adjusting the operating frequency of the compressor and the opening of the electronic expansion valve in the heat pump drying system, the efficiency of the refrigerant circulation and the evaporation / condensation temperature are adjusted, so that the air temperature in the drying chamber can be precisely maintained in the optimal low-temperature drying range of 40℃ to 42℃. By stably controlling the temperature of the core drying stage at 40-42℃, the drying time for clothes in a medium moisture content state (such as between 20% and 40%) is effectively extended. In the medium moisture content stage, the moisture in the clothes mainly migrates from the inside of the fibers to the outside. Low-temperature slow drying can minimize the shrinkage, hardening and wrinkling of fibers caused by rapid heating and drying, and finally make the moisture content of the clothes uniformly reduced to the target value (such as 10%), with extremely high moisture content uniformity (such as at the end of the drying program, the difference in moisture content between the wettest and driest parts of the clothes does not exceed 3%), achieving top-notch clothing care results.

[0053] Optionally, please refer to Figure 2 The method also includes: determining altitude parameters based on air pressure parameters; adjusting compressor frequency and expansion valve opening based on air pressure parameters, including: determining the corresponding energy efficiency value based on altitude parameters according to the altitude energy efficiency mapping relationship; and adjusting compressor frequency and expansion valve opening based on the energy efficiency value.

[0054] Among them, the altitude energy efficiency mapping relationship is the mapping relationship between altitude parameters and energy efficiency values.

[0055] Since air pressure parameters fluctuate in real time due to weather changes, temperature, seasons, and other factors, the air pressure value at the same altitude may vary greatly under different weather conditions. Altitude is a relatively constant physical quantity. Therefore, by converting air pressure parameters into altitude parameters, the control system parameters can be configured in a standardized manner based on the altitude parameters to avoid energy efficiency value matching errors caused by air pressure parameter fluctuations and ensure adjustment accuracy.

[0056] Altitude-based energy efficiency mapping can be achieved by using a pre-trained mapping model based on a large amount of historical data. Based on the current altitude parameters, the system can query the optimal energy efficiency value (or target evaporation temperature) that the system should maintain at the current altitude parameters. Then, with this energy efficiency value as the target, the compressor frequency and expansion valve opening can be adjusted through a closed-loop control algorithm (such as PID) to achieve dual optimization of temperature and energy efficiency.

[0057] For example, the altitude energy efficiency mapping relationship is that for every 500 meters increase in altitude, the energy efficiency value increases by 0.3. That is, the altitude parameter is based on the altitude of the plains, and the energy efficiency value is based on the energy efficiency value of the plains. For every 500 meters increase in altitude relative to the plains, the energy efficiency value increases by 0.3 relative to the energy efficiency value of the plains, with the highest energy efficiency value being 4.8.

[0058] The compressor frequency and expansion valve opening correspond to the energy efficiency value. For example, when the energy efficiency value is determined to be 4.2, the compressor operating frequency can be reduced from the default 50Hz to 40Hz (at high altitude and low air pressure, reducing the compressor speed can reduce the refrigerant mass flow rate, allowing it more time to exchange heat with the rarefied air in the evaporator and condenser, preventing "insufficient heat exchange"), and the expansion valve opening can be increased from the default 200 step pulses to 240 step pulses (to reduce the throttling effect, allowing more refrigerant to flow into the evaporator to compensate for the decrease in heat absorption capacity on the evaporator side due to the decrease in air density, ensuring that the evaporation temperature is not too low).

[0059] Optionally, controlling the washing machine to perform a washing program includes: controlling the washing machine to take in water and preheat to a target temperature; controlling the washing machine to perform a main wash program at the target temperature; and controlling the washing machine to lower a preset temperature based on the target temperature and perform a rinsing program.

[0060] When the power supply voltage is low, the system preheats the water first, and then starts the main wash program only after the washing solution reaches the target temperature. This ensures that the detergent achieves optimal cleaning results at the optimal temperature. Furthermore, the rinsing temperature is lower than the main wash temperature. This utilizes the fiber shrinkage effect caused by the cooling (the cooling causes a slight, rapid contraction of the heated clothing fibers) to actively expel the dirty water from inside the garment. This compensates for insufficient external water rinsing under low pressure, while also saving energy required for heating. For example, the target temperature can be between 25°C and 30°C, such as 25°C, 26°C, 28°C, 30°C, etc. The preset temperature can be between 5°C and 8°C, such as 5°C, 6°C, 8°C, etc.

[0061] Furthermore, if the power supply voltage is lower than the third preset voltage, the washing machine is controlled to execute the spin-drying program according to the preset spin-drying speed, wherein the preset spin-drying speed is lower than the spin-drying speed of the washing machine under the nominal voltage.

[0062] The third preset voltage can be equal to or less than the second preset voltage. For example, the third preset voltage can be 170V, 175V, 165V, etc.

[0063] When the power supply voltage is lower than the third preset voltage, it indicates a severe voltage deficiency in the mains. At this time, forcibly driving the motor to reach its rated high speed will cause a sharp increase in motor current, potentially triggering overcurrent protection, causing overheating damage to the motor windings, or even preventing it from accelerating to the predetermined speed due to insufficient torque, resulting in spin-drying failure. Therefore, when the power supply voltage is extremely low, the washing machine can be controlled to spin-dry at a lower speed, simultaneously achieving voltage protection under low voltage and completing the spin-drying process.

[0064] For example, the preset spin speed can be 80% to 85% of the spin speed of the washing machine under the nominal voltage, such as 80%, 83%, 85%, etc.

[0065] For example, the obtained air pressure parameter is 620 hPa and the power supply voltage is 165 V.

[0066] Since the power supply voltage of 165V is lower than the second preset voltage (e.g., 170V), the motor drives the inner drum to run with a time constant of 1.2 seconds and reaches the first preset speed. After the first preset time, the motor drives the inner drum to run with a time constant of 1.2 seconds and reaches the second preset speed. After the motor starts successfully, the washing program and the spin-drying program are entered in sequence. The water is preheated to 28℃, the main wash is 12 minutes (stable temperature ±1℃), rinses 3 times (23℃), spin-drying is 3 minutes (800rpm), and then the drying program is entered. Since the air pressure parameter is 620hPa, which corresponds to the high altitude parameter, the compressor frequency is determined to be 110Hz, the expansion valve opening is 65% (COP=4.8), and the drying is carried out at 40℃. The medium moisture content stage is extended to 20 minutes. At 66 minutes, the moisture content of the clothes is 10%, and the uniformity is 2%, completing the washing and drying process.

[0067] In summary, the washing machine control method provided in this application detects the power supply voltage and automatically increases the motor starting time constant (i.e., reduces starting acceleration) when the voltage is low. This allows the motor to accelerate smoothly under torque constraints, effectively avoiding stalling and starting failure, and improving the system's robustness in harsh power grid environments. The motor starts using a two-stage acceleration strategy, first at low speed and then at high speed. Upon reaching the target speed, both speed and current are used to confirm successful starting, ensuring the reliability and safety of the starting process. During the drying program, air pressure parameters are sensed, and the compressor frequency and expansion valve opening of the heat pump system are dynamically adjusted accordingly to precisely control the temperature of the core drying stage within the optimal range of 40°C to 42°C for garment care. This solves the problem of overheating during drying due to lower boiling points in high-altitude areas, achieving a balance between energy saving and efficient garment care. The motor windings use copper core wire with a diameter of 0.6mm to 0.8mm, ensuring conductivity while enhancing mechanical strength. This makes it more suitable for withstanding potentially prolonged start-stop cycles and current changes during low-voltage startup, improving reliability from a hardware perspective. Differentiated temperature control is used in the main wash and rinsing stages. The main wash is performed at a target high temperature to enhance cleaning power, while the rinsing is performed at a moderately lower temperature, which saves energy while ensuring the rinsing effect.

[0068] When the washing machine control method provided in the embodiments of this application is executed, the start-up success rate is 100%, the washing rate is 96%, the clothing fiber damage rate is 0.3%, the motor does not overheat, and the number of compressor start-stop cycles is reduced by 65% ​​compared with traditional equipment.

[0069] This application also provides a washing machine control device; please refer to [link / reference]. Figure 4 The device includes a power supply voltage acquisition module 201 and a control module 202. The power supply voltage acquisition module 201 is configured to acquire the power supply voltage; the control module 202 is configured to control the motor to start based on a preset time constant if the power supply voltage is lower than a first preset voltage; if the motor starts successfully, it controls the washing machine to execute a washing program; wherein the preset time constant is greater than the time constant of the motor under the nominal voltage, and the preset time constant is negatively correlated with the power supply voltage.

[0070] This application also provides an electronic device 300, please refer to... Figure 5 The system includes a memory 301, a processor 302, and a computer program 3011 stored in the memory 301 and executable on the processor. When the processor 302 executes the computer program 3011, it implements the washing machine control method described above. The method includes the following steps: S101: Obtain the power supply voltage. S102: If the power supply voltage is lower than a first preset voltage, control the motor to start based on a preset time constant. S103: If the motor starts successfully, control the washing machine to execute a washing program. The preset time constant is greater than the time constant of the motor under its nominal voltage, and the preset time constant is negatively correlated with the power supply voltage.

[0071] This application embodiment also provides a storage medium storing control instructions. When the control instructions are executed by a processor, they implement the washing machine control method described above. The method includes the following steps: S101: Obtain the power supply voltage. S102: If the power supply voltage is lower than a first preset voltage, control the motor to start based on a preset time constant. S103: If the motor starts successfully, control the washing machine to execute a washing program. The preset time constant is greater than the time constant of the motor under its nominal voltage, and the preset time constant is negatively correlated with the power supply voltage.

[0072] For example, a computer program can be divided into one or more modules / units, which are stored in memory and executed by a processor to perform the present invention. The one or more modules / units can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in an electronic device.

[0073] Electronic devices can be desktop computers, laptops, handheld computers, and cloud servers, among other electronic devices. Electronic devices may include, but are not limited to, processors and memory. For example, electronic devices may also include input / output devices, network access devices, buses, etc.

[0074] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0075] In the embodiments provided by this invention, it should be understood that the disclosed devices / electronic devices and methods can be implemented in other ways. For example, the device / electronic device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. Multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0076] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0077] If integrated modules / units are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program may include computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. Computer-readable media may include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0078] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0079] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0080] The washing machine control method, control device, electronic device, and storage medium provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A washing machine control method, characterized in that, The method includes: Obtain the power supply voltage; If the power supply voltage is lower than the first preset voltage, the motor is started based on a preset time constant; If the motor starts successfully, the washing machine will be controlled to execute the washing program; The preset time constant is greater than the time constant of the motor under the nominal voltage, and the preset time constant is negatively correlated with the power supply voltage.

2. The washing machine control method according to claim 1, characterized in that, The method of controlling the motor start based on a preset time constant includes: If the power supply voltage is lower than the second preset voltage, the motor is controlled to drive the inner cylinder to run based on the preset time constant and to reach the first preset speed. After the first preset time period, the motor is controlled to drive the inner cylinder to run based on the preset time constant, and the second preset speed is reached; Wherein, the second preset voltage is lower than the first preset voltage, and the second preset rotational speed is greater than the first preset rotational speed.

3. The washing machine control method according to claim 2, characterized in that, After reaching the second preset rotational speed, the method further includes: The rotational speed of the inner cylinder and the current of the motor are obtained within a second preset time period; If the difference between the speed and the second preset speed is within the preset difference range, and the current is within the preset safety range, then the motor is determined to have started successfully.

4. The washing machine control method according to claim 1, characterized in that, The diameter of the copper core wire in the motor winding is 0.6mm to 0.8mm.

5. The washing machine control method according to claim 1, characterized in that, After the washing machine is controlled to execute a washing program, the method further includes: When the washing machine executes the drying program, the air pressure parameters are acquired; When the air pressure parameter is lower than the preset air pressure parameter, the compressor frequency and expansion valve opening are adjusted based on the air pressure parameter to keep the drying temperature between 40°C and 42°C.

6. The washing machine control method according to claim 5, characterized in that, The method further includes: Determine the altitude parameters based on the air pressure parameters; The adjustment of compressor frequency and expansion valve opening based on the gas pressure parameters includes: Based on the altitude-energy efficiency mapping relationship, the corresponding energy efficiency value is determined according to the altitude parameters; The compressor frequency and the expansion valve opening are adjusted based on the energy efficiency value.

7. The washing machine control method according to claim 1, characterized in that, The control of the washing machine to execute the washing program includes: Control the water intake of the washing machine and preheat it to the target temperature; Control the washing machine to execute the main wash program at the target temperature; The washing machine is controlled to lower the preset temperature based on the target temperature and execute the rinsing program.

8. A washing machine control device, characterized in that, The device includes: The power supply voltage acquisition module is configured to acquire the power supply voltage. The control module is configured to control the motor to start based on a preset time constant if the power supply voltage is lower than a first preset voltage; and to control the washing machine to execute a washing program if the motor starts successfully. The preset time constant is greater than the time constant of the motor under the nominal voltage, and the preset time constant is negatively correlated with the power supply voltage.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the washing machine control method as described in any one of claims 1-7.

10. A storage medium, characterized in that, The storage medium stores control instructions, which, when executed by a processor, implement the washing machine control method as described in any one of claims 1-7.

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