CN-122013484-A - Washing machine control method, control device, electronic equipment and storage medium

CN122013484ACN 122013484 ACN122013484 ACN 122013484ACN-122013484-A

Abstract

The application provides a control method, a control device, electronic equipment and a storage medium of a washing machine, belonging to the technical field of washing machines, wherein the method comprises the steps of obtaining a power supply voltage; and controlling the motor to start based on a preset time constant if the power supply voltage is lower than a preset voltage, and controlling the washing machine to execute a washing program if the motor is started successfully, wherein the preset time constant is larger than the time constant of the motor under the nominal voltage, and the preset time constant is inversely related to the power supply voltage. According to the method provided by the application, when the power supply voltage is lower than the first preset voltage, the current voltage is lower, so that the motor is started according to the preset time constant which is larger than the time constant under the nominal voltage, the acceleration in the starting process of the motor is further reduced, the motor is gradually accelerated under the condition of limited moment, the condition of locked-rotor and starting failure is effectively avoided, and the robustness of the system under the severe power grid environment is improved.

Inventors

FENG GANG
Tang Shucan
ZHAO BENQING
WU YIDAN
GAO LIMIN
WANG ZHONGQING

Assignees

TCL家用电器（合肥）有限公司

Dates

Publication Date: 20260512
Application Date: 20260310

Claims (10)

1. A control method of a washing machine, the method comprising: Acquiring a power supply voltage; If the power supply voltage is lower than a first preset voltage, controlling the motor to start based on a preset time constant; if the motor is started successfully, controlling the washing machine to execute a washing program; Wherein the preset time constant is greater than a time constant of the motor at a nominal voltage, and the preset time constant is inversely related to the power supply voltage.
2. The control method of a washing machine as claimed in claim 1, wherein the controlling the motor start based on a preset time constant comprises: If the power supply voltage is lower than a second preset voltage, controlling the motor to drive the inner cylinder to operate based on the preset time constant, and achieving a first preset rotating speed to operate; After a first preset time period, controlling the motor to drive the inner cylinder to run based on the preset time constant, and reaching a second preset rotating speed; the second preset voltage is lower than the first preset voltage, and the second preset rotating speed is higher than the first preset rotating speed.
3. The control method of a washing machine as claimed in claim 2, wherein after the second preset rotation speed is reached, the method further comprises: Acquiring the rotating speed of the inner cylinder and the current of the motor within a second preset time period; and if the rotating speed difference value between the rotating speed and the second preset rotating speed is within a preset difference value and the current is within a preset safety range, judging that the motor is started successfully.
4. The control method of a washing machine as claimed in claim 1, wherein the copper core wire diameter of the motor winding is 0.6mm to 0.8mm.
5. The control method of a washing machine according to claim 1, wherein after the washing machine is controlled to perform a washing program, the method further comprises: when the washing machine executes a drying program, acquiring air pressure parameters; And when the air pressure parameter is lower than a preset air pressure parameter, adjusting the frequency of the compressor and the opening degree of the expansion valve based on the air pressure parameter so as to enable the drying temperature to be between 40 ℃ and 42 ℃.
6. The control method of a washing machine as claimed in claim 5, further comprising: Determining an altitude parameter based on the barometric pressure parameter; The adjusting the compressor frequency and the expansion valve opening based on the air pressure parameter comprises the following steps: Based on the altitude energy efficiency mapping relation, determining a corresponding energy efficiency value according to the altitude parameter; and adjusting the compressor frequency and the expansion valve opening based on the energy efficiency value.
7. The control method of a washing machine as claimed in claim 1, wherein the controlling the washing machine to perform the washing process comprises: Controlling water inflow of the washing machine and preheating to a target temperature; Controlling the washing machine to execute a main washing program at the target temperature; and controlling the washing machine to reduce a preset temperature based on the target temperature, and performing a rinsing process.
8. A control apparatus of a washing machine, the apparatus comprising: A power supply voltage acquisition module configured to acquire a 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 control the washing machine to execute a washing program if the motor is started successfully; Wherein the preset time constant is greater than a time constant of the motor at a nominal voltage, and the preset time constant is inversely related to 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 the processor implements the laundry machine control method as claimed in any one of claims 1-7 when executing the computer program.
10. A storage medium storing control instructions which when executed by a processor implement the method of controlling a washing machine as claimed in any one of claims 1 to 7.

Description

Washing machine control method, control device, electronic equipment and storage medium Technical Field The application belongs to the technical field of washing machines, and particularly relates to a control method and device for a washing machine, electronic equipment and a storage medium. Background As a common household appliance, a washing machine has a running stability greatly affected by a power supply environment. In areas where the grid voltage is unstable or remote, the supply voltage may be lower than the nominal operating voltage of the washing machine (e.g. 220V). Under the low-voltage condition, if the motor is started directly by the nominal parameter, the motor may be blocked, failed to start due to insufficient starting torque, and even the motor is burnt out, so that the reliability of the product and the user experience are affected. Disclosure of Invention The embodiment of the application provides a control method, a control device, electronic equipment and a storage medium for a washing machine, which are used for solving the problem that the existing washing machine is difficult to start under low voltage. The embodiment of the application provides a control method of a washing machine, which comprises the following steps: Acquiring a power supply voltage; If the power supply voltage is lower than the preset voltage, controlling the motor to start based on a preset time constant; if the motor is started successfully, controlling the washing machine to execute a washing program; Wherein the preset time constant is greater than a time constant of the motor at a nominal voltage, and the preset time constant is inversely related to the power supply voltage. Optionally, the controlling the motor to start based on the 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 operate based on the preset time constant, and achieving a first preset rotating speed to operate; After a first preset time period, controlling the motor to drive the inner cylinder to run based on the preset time constant, and reaching a second preset rotating speed; the second preset voltage is lower than the first preset voltage, and the second preset rotating speed is higher than the first preset rotating speed. Optionally, after the second preset rotation speed is reached, the method further includes: Acquiring the rotating speed of the inner cylinder and the current of the motor within a second preset time period; and if the rotating speed difference value between the rotating speed and the second preset rotating speed is within a preset difference value and the current is within a preset safety range, judging that the motor is started successfully. Optionally, the copper core wire diameter of the motor winding is 0.6mm to 0.8mm. Optionally, after the controlling the washing machine to perform the washing program, the method further includes: when the washing machine executes a drying program, acquiring air pressure parameters; And when the air pressure parameter is lower than a preset air pressure parameter, adjusting the frequency of the compressor and the opening degree of the expansion valve based on the air pressure parameter so as to enable the drying temperature to be between 40 ℃ and 42 ℃. Optionally, the method further comprises: Determining an altitude parameter based on the barometric pressure parameter; The adjusting the compressor frequency and the expansion valve opening based on the air pressure parameter comprises the following steps: Based on the altitude energy efficiency mapping relation, determining a corresponding energy efficiency value according to the altitude parameter; and adjusting the compressor frequency and the expansion valve opening based on the energy efficiency value. Optionally, the controlling the washing machine to perform a washing program includes: Controlling water inflow of the washing machine and preheating to a target temperature; Controlling the washing machine to execute a main washing program at the target temperature; and controlling the washing machine to reduce a preset temperature based on the target temperature, and performing a rinsing process. The embodiment of the application also provides a control device of the washing machine, which comprises: A power supply voltage acquisition module configured to acquire a 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 control the washing machine to execute a washing program if the motor is started successfully; Wherein the preset time constant is greater than a time constant of the motor at a nominal voltage, and the preset time constant is inversely related to the power supply voltage. The embodiment of the application also provides electronic equipment, which comprises a memory, a processor and