A method and device for adaptively controlling load capacity of a pulsator washing machine motor

Abstract

The present invention discloses a method for adaptively controlling the load capacity of a pulsator washing machine's motor, comprising the following steps: storing preset standard water flow and motor operating base temperature data for the pulsator washing machine in a standard washing state according to the type of laundry load; collecting real-time motor operating temperature data for the pulsator washing machine in a high-intensity washing state; analyzing and comparing the real-time motor operating temperature data with the motor operating base temperature data, and dynamically adjusting the wash water flow. This application can achieve adaptive automatic adjustment of the washing intensity of the pulsator washing machine, with the goal of dynamically adjusting the wash water flow as the laundry load changes, enabling the washing machine to output a higher wash intensity, thereby meeting the requirements for washing different laundry loads; and detecting the real-time motor operating temperature. During the dynamic adjustment of the wash water flow, the motor can be kept operating safely, meeting safety regulations and temperature rise requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machine operation control, and in particular to a method and device for adaptively controlling the load capacity of a pulsator washing machine motor. Background Art

[0002] During the washing process, different clothing loads have different washing requirements. During the standard washing process of large clothes in a pulsator washing machine, the water flow is weakened by the large clothing load, making it impossible to reversely flush the clothes during the entire washing process. The washing appears weak, which reduces the washing effect. Therefore, the water flow activity intensity remains unchanged during the standard washing process of the pulsator washing machine, which will lead to poor washing effect of the clothes to be washed in the pulsator washing machine. Summary of the Invention

[0003] The object of the present invention is to provide a method and device for adaptively controlling the load capacity of a pulsator washing machine motor, so as to solve the problem in the prior art of poor washing effect during a standard washing process.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A method for adaptively controlling the load capacity of a pulsator washing machine motor comprises the following steps:

[0006] S10, saving preset standard water flow and motor operating basic temperature data of the pulsator washing machine under standard washing conditions according to the type of laundry load;

[0007] S20, collecting real-time temperature data of the motor of the pulsator washing machine in the strong washing state;

[0008] S30: Analyze and compare the real-time temperature data of the motor operation with the basic temperature data of the motor operation, and dynamically adjust the washing water flow.

[0009] As a further solution of the present invention: the method for saving the preset standard water flow and the basic motor operation temperature data in step S10 is: when the pulsator washing machine is at the maximum clothing load and the preset standard water flow Sv is used, starting the collection program; recording the temperature change rate T1, T2, T3...Tn of the internal coil of the motor according to the set collection frequency and number of samples; and saving the collected temperature change rate data as the basic motor operation temperature data in the storage system of the pulsator washing machine.

[0010] As a further solution of the present invention: when recording the temperature change rate data of the internal coil of the motor according to the set collection frequency and sample number, the collection frequency is set to be collected once every 5 to 80 seconds, and the set sample number is determined based on the operating cycle of the pulsator washing machine and the temperature change characteristics of the motor, and the number of collected samples n is determined.

[0011] As a further solution of the present invention: the method for collecting the real-time temperature data of the motor operation in step S20 is: the pulsator washing machine starts strong washing, and during the washing process, the temperature change rate data of the internal coil of the motor is collected in real time, and the collected temperature change rate data is marked as T'1, T'2, T'3...T'n, wherein the real-time temperature data of the motor operation T'1, T'2, T'3...T'n correspond one to one with the basic temperature data of the motor operation T1, T2, T3...Tn.

[0012] As a further solution of the present invention: the sub-steps of the method for dynamically adjusting the washing water flow in step S30 are:

[0013] S31, determining whether a set condition is met, comparing the motor real-time temperature data with the motor basic temperature data of the same sequence number, checking whether the motor real-time temperature data of m consecutive collection points are all lower than the motor basic temperature data, and whether the difference is greater than a preset safety temperature difference Δt. If the set condition is met, executing step S32;

[0014] S32, dynamically adjusting the washing intensity to increase the washing water flow to a preset level;

[0015] S33, determining whether a preset maximum washing water flow is reached. If the washing water flow intensity at the preset gear does not reach the maximum washing water flow threshold, looping through steps S31 to S33 until the washing water flow intensity at the preset gear reaches the maximum washing water flow threshold, then executing step S34;

[0016] S34, washing is performed according to the preset maximum washing water flow.

[0017] As a further solution of the present invention: in step S31 , the value range of the m consecutive collection points is 2-15.

[0018] As a further solution of the present invention: the preset safety temperature difference Δt in step S31 is set according to the thermal characteristics of the motor, the design of the washing machine and the safety requirements of the user.

[0019] As a further solution of the present invention: when it is determined in step S31 that the set condition is not met, step S40 of washing according to the preset standard water flow is executed.

[0020] As a further solution of the present invention: when the washing intensity is dynamically adjusted to increase to the preset gear to run the washing water flow in step S32, the motor forward rotation time is increased as set, or the motor reverse rotation time is increased as set, or the motor stop time is shortened as set.

[0021] A pulsator washing machine motor load capacity adaptive control device, comprising:

[0022] A storage unit for storing preset standard water flow and motor operation basic temperature data of a pulsator washing machine under a standard washing state;

[0023] The acquisition unit is used to collect the real-time temperature data of the motor of the pulsator washing machine in the strong washing state;

[0024] A touch screen button unit is used to control the pulsator washing machine to start a strong wash operation;

[0025] The control unit analyzes and compares the real-time temperature data of the motor operation with the basic temperature data of the motor operation, and dynamically adjusts the washing water flow.

[0026] Beneficial effects of the present invention:

[0027] (1) It can realize the adaptive automatic adjustment of the washing intensity of the pulsator washing machine. The purpose is to dynamically adjust the washing water flow when the washing load changes, so that the washing machine can output a higher washing intensity to meet the washing requirements of different clothing loads;

[0028] (2) The real-time temperature of the motor is detected, and during the dynamic adjustment of the washing water flow, the safe operation of the motor can be maintained to meet the safety temperature rise requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 This is a flow chart of the method for adaptively controlling the load capacity of a pulsator washing machine motor according to the present invention;

[0031] Figure 2 yes Figure 1 Flowchart of sub-steps in the implementation process of step S30;

[0032] Figure 3 It is a schematic diagram of a self-adaptive control device for load capacity of a pulsator washing machine motor according to the present invention;

[0033] Figure 4 It is a schematic diagram of another adaptive control device for load capacity of a pulsator washing machine motor according to the present invention. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in the description of the present invention, the meaning of "multiple" and "several" is at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0036] See also Figure 1 As shown, the present invention is a method for adaptively controlling the load capacity of a pulsator washing machine motor, comprising the following steps:

[0037] S10. According to the type of laundry load, the preset standard water flow and motor operating basic temperature data of the pulsator washing machine under the standard washing state are saved.

[0038] The method for saving the preset standard water flow and motor operation basic temperature data in this step is: when the pulsator washing machine is at the maximum clothing load and the preset standard water flow Sv is used, start the collection program; according to the set collection frequency and number of samples, record the temperature change rate T1, T2, T3...Tn of the internal coil of the motor; and save the collected temperature change rate data as the motor operation basic temperature data in the storage system of the pulsator washing machine.

[0039] In this step, the temperature change rate data of the motor internal coil is recorded according to the set acquisition frequency and number of samples. The acquisition frequency is set to an interval acquisition of 5 to 80 seconds. The set number of samples is determined based on the operating cycle of the pulsator washing machine and the temperature change characteristics of the motor.

[0040] It should be understood that different washing load clothing types correspond to different standard washing requirements. This application mainly solves the problem that the standard washing intensity cannot meet the customer's need to adjust to a stronger washing water flow during the maximum clothing load washing process.

[0041] S20, collecting real-time temperature data of the motor of the pulsator washing machine in the strong washing state.

[0042] The method for collecting the real-time temperature data of the motor operation in this step is: the pulsator washing machine starts the strong washing, and during the washing process, the temperature change rate data of the internal coil of the motor is collected in real time, and the collected temperature change rate data is marked as T'1, T'2, T'3...T'n, among which the real-time temperature data of the motor operation T'1, T'2, T'3...T'n correspond one-to-one to the basic temperature data of the motor operation T1, T2, T3...Tn.

[0043] It should be understood that the appropriate temperature measurement method should be selected according to the actual situation and needs of the motor; for occasions requiring real-time monitoring and high-precision measurement, infrared temperature measurement or temperature measurement element method can be considered; for occasions with low cost and low precision requirements, the resistance method can be considered; therefore, the temperature changes of the internal coils of the motor can be collected through a variety of methods; in actual applications, the appropriate temperature measurement method should be selected according to the specific situation and needs of the motor, and corresponding measures should be taken to ensure the accuracy and reliability of the temperature measurement results.

[0044] S30: Analyze and compare the real-time temperature data of the motor operation with the basic temperature data of the motor operation, and dynamically adjust the washing water flow.

[0045] Combine Figure 2 As shown, the sub-steps of the method for dynamically adjusting the washing water flow in step S30 are:

[0046] S31. Determine whether the set conditions are met, compare the real-time temperature data of the motor operation with the basic temperature data of the motor operation with the same serial number, check whether the real-time temperature data of the motor operation at m consecutive collection points are all lower than the basic temperature data of the motor operation, and whether the difference is greater than the preset safety temperature difference △t. If the set conditions are met, execute step S32; if it is determined that the set conditions are not met, execute step S40 of washing according to the preset standard water flow.

[0047] In this step, the value range of the m consecutive collection points is 2-15. The preset safe temperature difference △t is set based on the thermal characteristics of the motor, the washing machine design, and the user's safety requirements. The value of △t should ensure that the motor can still operate safely when the motor temperature change rate is lower than the basic data.

[0048] S32, dynamically adjust the washing intensity to increase the washing water flow to the preset level.

[0049] In this step, when the washing intensity is dynamically adjusted to increase the washing water flow to the preset gear, the motor forward rotation time is increased as set, or the motor reverse rotation time is increased as set, or the motor stop time is shortened as set; wherein, when the motor forward rotation time is increased as set, a longer forward rotation time helps to distribute the clothes more evenly in the water, reduce entanglement and dead corners, and improve washing uniformity; when the motor reverse rotation time is increased as set, reversal helps to loosen the clothes and avoid excessive entanglement during the washing process, thereby protecting the clothes and reducing wear; when the motor stop time is shortened as set, the total time of the washing cycle is shortened, thereby completing the washing task in a shorter time and helping to reduce energy consumption.

[0050] S33. Determine whether the preset maximum washing water flow is reached. If the washing water flow intensity at the preset gear does not reach the maximum washing water flow threshold, loop through steps S31 to S33 until the washing water flow intensity at the preset gear reaches the maximum washing water flow threshold, then execute step S34.

[0051] S34, washing is performed according to the preset maximum washing water flow.

[0052] During the dynamic adjustment of the washing water flow, the above-mentioned temperature change rate data comparison and washing water flow intensity dynamic adjustment process are repeated in a cycle. After each adjustment of the water flow intensity, re-monitoring and comparison are performed. If the washing water flow has been enhanced to the maximum water flow set in the program, further enhancement will be stopped; in addition, if the user chooses to exit the strong washing program during the washing process, the washing water flow intensity will be restored to the standard washing state.

[0053] By adopting the adaptive control method of the present application, adaptive automatic adjustment of the washing intensity of the pulsator washing machine can be achieved. The purpose is to dynamically adjust the washing water flow when the washing load changes, so that the washing machine has a higher washing intensity output to meet the requirements of washing different clothing loads; in addition, the real-time temperature of the motor is detected, and during the dynamic adjustment of the washing water flow, the safe operation of the motor can be maintained to meet the safety temperature rise requirements.

[0054] like Figure 3 As shown, the present invention also provides an adaptive control device for the load capacity of a pulsator washing machine motor, comprising a storage unit, an acquisition unit, a touch screen button unit and a control unit; the storage unit is used to store the preset standard water flow and motor operation basic temperature data of the pulsator washing machine in the standard washing state; the acquisition unit is used to acquire the real-time temperature data of the motor operation of the pulsator washing machine in the strong washing state; the touch screen button unit is used to control the pulsator washing machine to start the strong washing operation; the control unit analyzes and compares the real-time temperature data of the motor operation with the basic temperature data of the motor operation, and dynamically adjusts the washing water flow.

[0055] The methods of the operations performed by the above-mentioned units can be specifically referred to the above-mentioned method embodiments, which will not be described in detail here.

[0056] The division of the various units of the above control device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or physically separated. Moreover, these units can be implemented in the form of software called by the processor on the control unit; or in the form of hardware; or some units can be implemented in the form of software called by the processor and some units can be implemented in the form of hardware. In another implementation, please refer to Figure 4 A schematic diagram of another pulsator washing machine motor load capacity adaptive control device according to the present invention is provided. The control device includes a processor and an interface circuit. The processor is configured to obtain real-time and baseline motor operating temperature data through the interface circuit and execute the above-described pulsator washing machine motor load capacity adaptive control method. The processor may be one or more processors. The device may also include a memory, and the processor may implement the above-described control method by invoking a program stored in the memory.

[0057] Based on the same inventive concept, an embodiment of the present application further provides a computer-readable storage medium, which includes a program. When the program is called by a processor, the processor implements the above control method.

[0058] It should be understood that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the above program can be stored in a computer-readable storage medium. When the program code is called by the processor, the processor is used to execute the method executed in the above method embodiment. The embodiment of the present invention does not limit the form and number of the memory and the processor. For example, the memory can be a CPU or other processor that can call a program, and the memory can be a read-only memory (ROM), random access memory (RAM), a magnetic disk or an optical disk, etc., which can store program code.

[0059] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for adaptively controlling the load capacity of a pulsator washing machine motor, characterized in that: The following steps are involved: S10, saving preset standard water flow and motor operating basic temperature data of the pulsator washing machine under standard washing conditions according to the type of laundry load; S20, collecting real-time temperature data of the motor of the pulsator washing machine in the strong washing state; S30, analyzing and comparing the real-time temperature data of the motor operation with the basic temperature data of the motor operation, and dynamically adjusting the washing water flow; The method for storing the preset standard water flow and the motor operating basic temperature data in step S10 is as follows: when the pulsator washing machine is at a maximum laundry load and using the preset standard water flow, starting a collection program; recording the temperature change rates T1, T2, T3, ..., Tn of the motor internal coils according to a set collection frequency and number of samples; and storing the collected temperature change rate data as the motor operating basic temperature data in a storage system of the pulsator washing machine; The method for collecting the real-time temperature data of the motor in step S20 is as follows: the pulsator washing machine starts a strong wash cycle, and during the washing process, real-time temperature change rate data of the motor internal coil is collected, and the collected temperature change rate data is marked as T'1, T'2, T'3...T'n, wherein the real-time temperature data of the motor at T'1, T'2, T'3...T'n correspond one-to-one to the basic temperature data of the motor at T1, T2, T3...Tn; The sub-steps of the method for dynamically adjusting the washing water flow in step S30 are: S31, determining whether a set condition is met, comparing the motor real-time temperature data with the motor basic temperature data of the same sequence number, checking whether the motor real-time temperature data of m consecutive collection points are all lower than the motor basic temperature data, and whether the difference is greater than a preset safety temperature difference Δt. If the set condition is met, executing step S32; S32, dynamically adjusting the washing intensity to increase the washing water flow to a preset level; S33, determining whether a preset maximum washing water flow is reached. If the washing water flow intensity at the preset gear does not reach the maximum washing water flow threshold, looping through steps S31 to S33 until the washing water flow intensity at the preset gear reaches the maximum washing water flow threshold, then executing step S34; S34, washing is performed according to the preset maximum washing water flow.

2. The method for adaptively controlling the load capacity of a pulsator washing machine motor according to claim 1, characterized in that: According to the set collection frequency and number of samples, when recording the temperature change rate data of the internal coil of the motor, the collection frequency is set to an interval collection of 5 to 80 seconds, and the set number of samples is determined based on the operating cycle of the pulsator washing machine and the temperature change characteristics of the motor. The number of samples n collected is determined.

3. The method for adaptively controlling the load capacity of a pulsator washing machine motor according to claim 1, characterized in that: The value range of the m consecutive acquisition points in step S31 is 2-15.

4. The method for adaptively controlling the load capacity of a pulsator washing machine motor according to claim 1, characterized in that: The preset safety temperature difference Δt in step S31 is set according to the thermal characteristics of the motor, the design of the washing machine, and the safety requirements of the user.

5. The method for adaptively controlling the load capacity of a pulsator washing machine motor according to claim 1, characterized in that: If it is determined in step S31 that the set condition is not met, step S40 of washing according to the preset standard water flow is executed.

6. The method for adaptively controlling the load capacity of a pulsator washing machine motor according to claim 1, characterized in that: In step S32, when the washing intensity is dynamically adjusted to increase to the preset gear and the washing water flow is operated, the forward rotation time of the motor is increased as set, the reverse rotation time of the motor is increased as set, or the stop time of the motor is shortened as set.

7. A control device using the method for adaptively controlling the load capacity of a pulsator washing machine motor according to any one of claims 1 to 6, characterized in that: include: A storage unit for storing preset standard water flow and motor operation basic temperature data of a pulsator washing machine under a standard washing state; The acquisition unit is used to collect the real-time temperature data of the motor of the pulsator washing machine in the strong washing state; A touch screen button unit is used to control the pulsator washing machine to start a strong wash operation; The control unit analyzes and compares the real-time temperature data of the motor operation with the basic temperature data of the motor operation, and dynamically adjusts the washing water flow.

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