Water pump control method and device and electronic equipment

Abstract

The invention belongs to the technical field of water pumps, and discloses a water pump control method and device and electronic equipment. Determining a water pump protection level based on the water pump parameters; and controlling the water pump to execute a corresponding control strategy based on the water pump protection level. The running state of the water pump can be monitored in real time by accurately obtaining key data such as water outlet pressure and frequency converter parameters. The protection grade is determined according to comparison of the parameters and the preset threshold value, the corresponding control strategy is executed, and refined grading protection of the water pump can be achieved. By means of the process, early warning and abnormity processing can be conducted in time when the system is abnormal, fault deterioration is avoided, the service life of the water pump can be effectively prolonged, the maintenance cost is reduced, stable and reliable operation of the system is ensured, and the overall operation efficiency and safety of equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water pumps, and in particular to a method, device, electronic device and computer-readable storage medium for controlling a water pump. Background Art

[0002] The locomotive battery thermal management system is a key component to ensure the safe and efficient operation of the battery. Existing technologies generally rely on parameters such as temperature and pressure to control the water pump.

[0003] During the process of realizing the present invention, the inventors found that the prior art has at least the following technical problems: when an abnormal situation occurs in the system, if the water pump is not properly controlled in time and is always running at full speed, it may further aggravate the system abnormality and even cause battery damage.

[0004] Therefore, how to achieve precise control of the water pump is an urgent problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] In order to solve the problem in the prior art that a water pump cannot be reasonably controlled in a timely manner when an abnormal situation occurs in the system, the present invention provides a water pump control method, device, electronic device and computer-readable storage medium.

[0006] A water pump control method, comprising:

[0007] Obtain water pump parameters; the water pump parameters include water outlet pressure and water pump inverter parameters;

[0008] determining a water pump protection level based on the water pump parameters;

[0009] Based on the water pump protection level, the water pump is controlled to execute a corresponding control strategy.

[0010] Optionally, determining the water pump protection level based on the water pump parameters includes:

[0011] When the water pump parameter is greater than a first threshold, determining that the water pump protection level is level one;

[0012] When the water pump parameter is greater than a second threshold and less than the first threshold, determining that the water pump protection level is level two;

[0013] When the water pump parameter is greater than the third threshold and less than the second threshold, the water pump protection level is determined to be level three.

[0014] Optionally, controlling the water pump to execute a corresponding control strategy based on the water pump protection level includes:

[0015] When the water pump protection level is level one, the water pump is controlled to reduce the frequency;

[0016] When the water pump protection level is level 2, the water pump is controlled to prohibit frequency increase;

[0017] When the water pump protection level is level three, the water pump is controlled to reduce the frequency increase rate.

[0018] Optionally, controlling the water pump to reduce the frequency includes:

[0019] Controlling the rotation speed of the water pump to decrease to a first rotation speed value;

[0020] The control of prohibiting the water pump from increasing frequency includes:

[0021] The rotation speed of the water pump is controlled to be maintained at a second rotation speed value.

[0022] Optionally, the water pump inverter parameters include module temperature and output current;

[0023] When the water pump parameter is greater than a first threshold, determining that the water pump protection level is level one includes:

[0024] If the module temperature is greater than a first temperature threshold, and / or the output current is greater than a first current threshold, and / or the outlet water pressure is greater than a first pressure threshold, then the water pump protection level is determined to be level one;

[0025] When the water pump parameter is greater than the second threshold and less than the first threshold, determining that the water pump protection level is level two includes:

[0026] When the module temperature is lower than a first temperature threshold, the output current is lower than the first current threshold, and the outlet water pressure is lower than the first pressure threshold, if the module temperature is higher than a second temperature threshold, and / or the output current is higher than a second current threshold, and / or the outlet water pressure is higher than a second pressure threshold, then the water pump protection level is determined to be level two;

[0027] When the water pump parameter is greater than the third threshold and less than the second threshold, determining that the water pump protection level is level three includes:

[0028] When the module temperature is lower than the second temperature threshold, the output current is lower than the second current threshold, and the water outlet pressure is lower than the second pressure threshold, if the module temperature is higher than the third temperature threshold, and / or the output current is higher than the third current threshold, and / or the water outlet pressure is higher than the third pressure threshold, then the water pump protection level is determined to be level three.

[0029] Optionally, after controlling the water pump to execute a corresponding control strategy based on the water pump protection level, the method further includes:

[0030] determining whether the time for controlling the water pump to execute the control strategy exceeds a fourth threshold;

[0031] If yes, return to the step of obtaining the water pump parameters.

[0032] Optionally, obtaining water pump parameters includes:

[0033] Obtaining the module temperature of the water pump inverter through a temperature sensor;

[0034] Obtaining the output current of the water pump inverter through a current transformer;

[0035] The water outlet pressure of the water pump is obtained through a pressure sensor.

[0036] A water pump control device, comprising:

[0037] Acquisition module, used to obtain water pump parameters;

[0038] a level determination module, configured to determine a water pump protection level based on the water pump parameters;

[0039] The control module is used to control the water pump to execute a corresponding control strategy based on the water pump protection level.

[0040] An electronic device, comprising:

[0041] A processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the method for controlling the water pump as described in any one of the above is implemented.

[0042] A computer-readable storage medium stores a computer program, wherein the computer program, when executed by a processor, implements the water pump control method as described in any one of the above.

[0043] The water pump control method provided by the embodiment of the present invention has at least the following beneficial effects:

[0044] The present invention obtains water pump parameters; determines the water pump protection level based on the water pump parameters; and controls the water pump to execute a corresponding control strategy based on the water pump protection level. The present invention can monitor the operating status of the water pump in real time by accurately acquiring key data such as the water outlet pressure and inverter parameters. By comparing the parameters with preset thresholds to determine the protection level and executing the corresponding control strategy, refined hierarchical protection of the water pump can be achieved. This process not only provides timely warnings and handles abnormalities when they occur in the system, preventing the deterioration of faults, but also effectively extends the service life of the water pump, reduces maintenance costs, ensures stable and reliable operation of the system, and improves the overall operating efficiency and safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 A flow chart of a water pump control method provided by an embodiment of the present invention;

[0047] Figure 2 for Figure 1 A flow chart showing an actual embodiment of S02 in a water pump control method is provided;

[0048] Figure 3 for Figure 1 A flow chart showing an actual embodiment of S03 in a water pump control method provided;

[0049] Figure 4 This is a structural schematic diagram of a water pump control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0050] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0051] It should be understood that the embodiments described are only a portion 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 persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0052] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a," "an," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0053] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0054] The locomotive battery thermal management system is a key component to ensure the safe and efficient operation of the battery. Existing technologies generally rely on parameters such as temperature and pressure to control the water pump.

[0055] During the process of implementing the present invention, the inventors discovered that the existing technology has at least the following technical problems: Traditional water pump control often lacks the real-time and accurate acquisition and analysis of these key parameters, or simply controls based on a single parameter, making it difficult to make a comprehensive and accurate judgment of the operating status of the water pump. For example, controlling the start and stop of the water pump based solely on a set fixed time or a simple flow signal cannot promptly detect abnormal changes in the outlet water pressure and potential faults of the inverter. Once a fault occurs, such as excessive outlet water pressure that may cause a pipe rupture or abnormal inverter parameters that cause motor overload, the traditional control method cannot respond quickly, thereby affecting the normal operation of the water pump and even causing serious consequences such as battery damage.

[0056] Therefore, how to automatically monitor the status of the water valve and automatically perform the cleaning operation is a problem that those skilled in the art urgently need to solve.

[0057] Please refer to Figure 1 , which is a flow chart of a water pump control method provided by an embodiment of the present invention, comprising the following steps:

[0058] Step S01, obtaining water pump parameters.

[0059] In this embodiment, the water pump parameters primarily include the outlet pressure and the pump inverter parameters. The outlet pressure directly reflects the pressure exerted on the water at the outlet during operation and is a key indicator for measuring the pump's operating status and delivery capacity. The pump inverter parameters, on the other hand, involve information such as the inverter's operating frequency, output current, and voltage. These parameters reflect the inverter's drive status for the pump motor and the motor's operating conditions. By acquiring these parameters, we can fully understand the real-time operating status of the pump and its drive system, providing a data foundation for subsequent precise control and protection.

[0060] In some embodiments, to ensure that the acquired water pump parameters are accurate and comprehensive, and to provide reliable data support for the subsequent determination of the water pump protection level, the module temperature, output current, and water outlet pressure of the water pump inverter can be acquired through temperature sensors, current transformers, and pressure sensors. Through this multi-dimensional parameter monitoring, the system can accurately reflect the operating status of the water pump in real time, detect potential abnormalities in a timely manner, and then adopt corresponding control strategies to ensure the safe and stable operation of the water pump. That is, the process of acquiring water pump parameters mentioned in step S01 can specifically include the following steps:

[0061] Step S11: obtaining the module temperature of the water pump inverter through a temperature sensor.

[0062] In this embodiment, a temperature sensor can be integrated into the water pump inverter to detect module temperature changes in real time, convert the temperature data into an electrical signal, and transmit it to the controller. This process can accurately reflect the heating status of the water pump inverter during operation, helping the system to promptly understand the inverter's operating status.

[0063] Water pump inverters generate heat during operation, and temperature fluctuations directly reflect the operating load and efficiency. Excessively high temperatures may indicate overload, poor heat dissipation, or component failure. Continued operation may damage the inverter or even cause a safety incident. Real-time module temperature monitoring can help identify potential problems in advance.

[0064] Step S12: Obtain the output current of the water pump inverter through a current transformer.

[0065] In this embodiment, a current transformer can be installed at the inverter's output to sense the current flowing through it in real time. This current signal is proportionally converted into a low-current signal that is easily measured and processed, and then transmitted to the controller. This process accurately reflects the inverter's load and operating status, helping the system to promptly understand the pump's operating status.

[0066] The VFD's output current directly reflects the load on the pump motor. Excessive current could indicate motor overload, pipe blockage, or mechanical failure, while insufficient current could indicate the pump is not functioning properly or is underloaded. By monitoring the output current in real time, potential problems such as overload or failure can be detected in advance.

[0067] Step S13: obtaining the water outlet pressure of the water pump through a pressure sensor.

[0068] In this embodiment, a pressure sensor can be installed on the water pump's outlet pipe to sense changes in water pressure in the pipe in real time, converting the pressure signal into an electrical signal and transmitting it to the controller. This process accurately reflects the pump's outlet pressure, helping the system to promptly understand the pump's operating status and ensure that the outlet pressure is within a set safety range.

[0069] Outlet water pressure is a key indicator of pump performance. Excessive pressure can lead to pipe ruptures, equipment damage, and even safety incidents. By monitoring outlet water pressure in real time, the system can quickly respond to pressure anomalies, such as adjusting the pump's operating frequency or triggering protection mechanisms, thereby ensuring stable system operation and equipment safety.

[0070] In some embodiments, the parameters of the water pump inverter can be obtained by utilizing the monitoring interface and communication functions of the water pump inverter itself. Through the corresponding communication protocols, such as Modbus, Profibus, etc., the operating frequency, output current, voltage and other parameters inside the water pump inverter can be read out and transmitted to the control system.

[0071] Step S02: determining a water pump protection level based on water pump parameters.

[0072] In this embodiment, based on the acquired pump parameters, the current operating status of the pump is evaluated using pre-defined rules and algorithms to determine whether it is operating normally or experiencing varying degrees of abnormality. Different protection levels are then assigned accordingly. These levels are typically categorized as primary, secondary, and tertiary, with each level corresponding to varying degrees of abnormality and corresponding treatment measures. The goal is to achieve refined management and protection of the pump, ensuring safe and stable operation.

[0073] Water pumps face various complex operating conditions during operation. If the pump's protection level cannot be accurately and promptly determined, effective countermeasures cannot be implemented. By determining the pump's protection level, early warnings can be provided and appropriate protective measures can be implemented, reducing the probability of failure, extending the pump's service life, and improving system reliability and safety.

[0074] Step S03: Based on the water pump protection level, control the water pump to execute a corresponding control strategy.

[0075] In this embodiment, when the monitoring system determines that the pump is at a specific protection level, the control system automatically implements control measures corresponding to that level based on pre-set rules. For example, in level 2 or 3 protection states, only minor adjustments to the pump's operating parameters may be necessary; in level 1 protection, more stringent control measures may be implemented, such as reducing the pump's speed, limiting power output, and even, in extreme cases, initiating an emergency shutdown. This process ensures that the pump receives appropriate treatment in various abnormal situations, maintaining stable system operation and preventing further escalation of the fault.

[0076] By executing corresponding control strategies based on the water pump protection level, it is possible to respond to abnormal conditions of the water pump in a timely manner, take effective protection measures, minimize the risk of failure, extend the service life of the water pump, reduce maintenance costs and downtime, and ensure that the water pump and related systems can operate continuously and reliably.

[0077] Based on the above technical solution, the embodiment of the present invention obtains water pump parameters; determines the water pump protection level based on the water pump parameters; and controls the water pump to execute the corresponding control strategy based on the water pump protection level. The present invention can monitor the operating status of the water pump in real time by accurately obtaining key data such as the water outlet pressure and the inverter parameters. By determining the protection level based on the comparison between the parameters and the preset threshold value and executing the corresponding control strategy, refined hierarchical protection of the water pump can be achieved. This process can not only timely warn and handle abnormalities when abnormal conditions occur in the system, avoiding the deterioration of faults, but also effectively extend the service life of the water pump, reduce maintenance costs, ensure stable and reliable operation of the system, and improve the overall operating efficiency and safety of the equipment.

[0078] Please refer to Figure 2 ,for Figure 1 A flowchart of an actual performance of S02 in a water pump control method is provided. In some embodiments, step S02 mentioned above determines the water pump protection level based on the water pump parameters, which may specifically include: Figure 2 Steps shown:

[0079] Step S21: When the water pump parameter is greater than a first threshold, the water pump protection level is determined to be level one.

[0080] In this embodiment, by setting a first threshold, potential problems can be promptly detected and an alarm can be issued when a pump parameter exceeds the first threshold, prompting the operator to take corrective action. When a pump parameter exceeds the first threshold, the system determines that the pump is in a level one protection state. The first threshold is set based on pump design and long-term operating experience and represents a serious abnormality in pump operation.

[0081] In some embodiments, the water pump inverter parameters may include module temperature and output current. Based on this, as mentioned in step S21, when the water pump parameters are greater than the first threshold, the water pump protection level is determined to be level one, which may be:

[0082] If the module temperature is greater than the first temperature threshold, and / or the output current is greater than the first current threshold, and / or the outlet water pressure is greater than the first pressure threshold, the water pump protection level is determined to be level one.

[0083] In this embodiment, the first-level protection state means that the water pump is currently in a seriously abnormal operating state. Therefore, when any water pump parameter exceeds its corresponding first threshold, the water pump protection level is set to level one, and the corresponding control strategy is taken in time to avoid damage to the battery or water pump motor.

[0084] Step S22: When the water pump parameter is greater than the second threshold and less than the first threshold, the water pump protection level is determined to be level two.

[0085] In this embodiment, level 2 protection is a milder condition than level 1 protection, indicating that while the pump's operation is not severely abnormal, it has significantly deviated from normal operation, potentially posing a significant safety hazard. The second threshold is used to identify a moderately abnormal state of the pump's operation, prompting the need for more stringent protective measures to prevent the fault from escalating.

[0086] During operation, if a water pump parameter continuously rises or falls, exceeding the normal range (defined by the third threshold) but not reaching the most severe abnormal state (defined by the first threshold), then the pump is in a state between the second and first thresholds. If no timely action is taken, the water pump may continue to deteriorate, ultimately leading to battery damage or vehicle failure. By setting up secondary protection, problems can be detected and addressed in their early stages, preventing further development.

[0087] In some embodiments, the water pump inverter parameters may include module temperature and output current. Based on this, as mentioned in step S22, when the water pump parameters are greater than the second threshold and less than the first threshold, the water pump protection level is determined to be level 2, which may be:

[0088] When the module temperature is lower than the first temperature threshold, the output current is lower than the first current threshold, and the outlet water pressure is lower than the first pressure threshold, if the module temperature is higher than the second temperature threshold, and / or the output current is higher than the second current threshold, and / or the outlet water pressure is higher than the second pressure threshold, the water pump protection level is determined to be level two.

[0089] In this embodiment, when the pump's operating parameters exceed the normal range but do not meet the first-level protection conditions, the pump is determined to be in the second-level protection state. Specifically, if the module temperature, output current, and outlet water pressure all do not exceed the first threshold, but at least one of them exceeds the second threshold, the second-level protection state is triggered. This is a refined fault warning mechanism, indicating that the pump has a certain abnormality but has not yet reached the most serious level of failure. It is designed to promptly detect and address moderate anomalies in the pump's operation to prevent further escalation of the fault.

[0090] Step S23: When the water pump parameter is greater than the third threshold and less than the second threshold, the water pump protection level is determined to be level three.

[0091] In this embodiment, the third level of protection falls within the lowest risk range of the three set thresholds. Its purpose is to provide early warning so that preliminary measures can be taken to prevent further deterioration. The third threshold is close to the normal operating range. When the parameters exceed this threshold, it indicates that the pump's operating status has begun to show minor anomalies. While this does not reach the threshold that would cause a serious failure, it does require operator attention. At this stage, simple adjustments can be taken to restore normal system operation.

[0092] In some embodiments, the water pump inverter parameters may include module temperature and output current. Based on this, as mentioned in step S23, when the water pump parameters are greater than the third threshold and less than the second threshold, the water pump protection level is determined to be level three, which may be:

[0093] When the module temperature is lower than the second temperature threshold, the output current is lower than the second current threshold, and the water outlet pressure is lower than the second pressure threshold, if the module temperature is higher than the third temperature threshold, and / or the output current is higher than the third current threshold, and / or the water outlet pressure is higher than the third pressure threshold, the water pump protection level is determined to be level three.

[0094] In this embodiment, by monitoring the three key parameters of module temperature, output current and water outlet pressure, the system can trigger the third level protection when any parameter exceeds the third threshold, thereby achieving accurate monitoring and early warning of the water pump operating status.

[0095] When a pump's operating parameters exceed the third threshold but fall below the second or first level protection threshold, it indicates a minor anomaly, but not yet severe enough to warrant more stringent action. By setting up three levels of protection, problems can be detected and addressed promptly at the earliest stages of an anomaly, preventing further development.

[0096] Based on the above technical solution, this embodiment determines the protection level as Level 3, Level 2, and Level 1 when the pump parameters are between the third and second thresholds, between the second and first thresholds, and above the first threshold, respectively. This grading approach accurately determines the operating status of the pump, enabling refined management, timely warnings, and the implementation of appropriate measures, effectively preventing the escalation of faults and enhancing the safety and reliability of pump operation.

[0097] Please refer to Figure 3 ,for Figure 1 A flowchart of an actual embodiment of S03 in a water pump control method is provided. In some embodiments, step S03, based on the water pump protection level, controls the water pump to execute a corresponding control strategy, which may specifically include the following steps:

[0098] Step S31: When the water pump protection level is level one, control the water pump to reduce the frequency.

[0099] In this embodiment, when the water pump protection level is level 1, the pump motor's power supply frequency is reduced, thereby decreasing the pump's speed and, in turn, reducing the pump's water output and system pressure. This adjustment helps mitigate potential issues that could arise from severe pump anomalies, thereby preventing damage to the battery or pump motor.

[0100] When the pump parameters exceed the first threshold, the system requires a quick and effective intervention method to restore the normal operation of the pump. Reducing the frequency can reduce the load on the pump and prevent the abnormal situation from developing further.

[0101] In some embodiments, in order to achieve accurate and effective control of the operating status of the water pump, the water pump speed can be reduced to a first speed value during the first level protection, so as to quickly reduce energy consumption and system pressure and prevent the abnormality from expanding. That is, as mentioned in step S31, controlling the water pump to reduce the frequency can be specifically:

[0102] Controlling the rotation speed of the water pump to decrease to a first rotation speed value;

[0103] In this embodiment, when the operating parameters of the water pump become abnormal, such as excessive outlet pressure or current, continuing to operate at the original speed may increase equipment wear and even cause failure. Reducing the speed can effectively reduce the water pump's energy consumption and mechanical stress, reduce the load on the motor, and thus protect the motor and other components of the water pump from damage. In this embodiment, the water pump inverter adjusts the water pump's speed from the current operating speed to a lower first speed value. The first speed value is pre-set based on the water pump's design requirements, system characteristics, and operating experience. The purpose is to reduce the water pump's load and energy consumption while ensuring basic system functionality.

[0104] Step S32: When the water pump protection level is level 2, the water pump is controlled to prohibit frequency increase.

[0105] In this embodiment, when the water pump's operating parameters exceed the normal range and reach the second-level protection condition, it indicates that the water pump's operating status has deviated from the normal range and is in a relatively dangerous medium abnormal state. Continuing to increase the water pump's frequency at this point will increase equipment wear and may even cause the battery system to overload. In this case, the system will limit the water pump's operating frequency to no more increases. This measure is intended to prevent further increases in frequency from causing more serious failures when the water pump is already experiencing a certain degree of abnormality.

[0106] In some embodiments, the control of the water pump to prohibit frequency increase mentioned in step S32 may specifically be:

[0107] The rotation speed of the water pump is controlled to be maintained at a second rotation speed value.

[0108] In this embodiment, when the pump protection level reaches level 2, the system stabilizes the speed at the second speed value. This second speed value is set to balance the pump's water supply needs with system safety. This control method ensures the pump continues to operate even in abnormal situations while preventing further escalation of the fault.

[0109] Step S33: When the water pump protection level is level three, control the water pump to reduce the frequency increase rate.

[0110] In this embodiment, controlling the water pump to reduce the frequency increase rate refers to controlling the speed at which the water pump rises from a low frequency to a high frequency per unit time, so that the water pump increases the frequency at a lower frequency increase rate during the frequency increase process. When the parameters of the water pump exceed the third threshold but have not yet reached the more serious secondary or primary protection conditions, the system requires a moderate control method to balance the operating requirements and safety of the water pump. Reducing the frequency increase rate can slow down the speed at which the load of the water pump increases without affecting the normal water supply of the system, and prevent potential problems caused by rapid frequency increase, such as motor overheating, sudden increase in pipeline pressure, etc. This measure can alleviate abnormal conditions to a certain extent, avoid further development of faults, and maintain the relative stability of the system.

[0111] Based on the above technical solution, this embodiment can ensure the normal operation of the water pump through hierarchical control, effectively extend its service life, reduce maintenance costs, and ensure system stability and safety.

[0112] Based on the above embodiment, in some embodiments, after executing step S03 and controlling the water pump to execute a corresponding control strategy based on the water pump protection level, the following steps may be further executed:

[0113] Step S41, determining whether the time for controlling the water pump to execute the control strategy exceeds a fourth threshold;

[0114] If yes, the process returns to step S01 to continue acquiring the water pump parameters.

[0115] In this embodiment, after executing a control strategy based on the water pump protection level, the execution time of the control strategy is monitored. If the execution time exceeds a preset fourth threshold, the water pump parameter acquisition process is restarted. This mechanism ensures that the water pump control system can dynamically and in real time adapt to changes in operating conditions, avoiding system rigidity or accumulation of anomalies that may result from prolonged execution of the control strategy.

[0116] When a water pump is at a certain protection level and executes the corresponding control strategy, although this strategy can alleviate abnormal conditions to a certain extent, if the same strategy is executed for a long time, it may cause the system to be unable to respond to new abnormalities or changes in a timely manner. For example, the control strategy may be effective for a short period of time, but over time, the operating status of the water pump may change, requiring new adjustments. By setting the fourth threshold, it can ensure that the system regularly reassesses the operating status of the water pump, promptly detects and handles new abnormalities, thereby improving the system's adaptability and reliability. In addition, this mechanism can also prevent potential problems that may arise from the long-term operation of the control strategy, such as system parameters deviating from the normal range or the emergence of new abnormal conditions.

[0117] Based on the above technical solution, this embodiment periodically reacquires pump parameters, allowing the system to promptly detect the effects of control strategy execution and changes in the pump's operating status. This ensures that the pump remains in a safe operating state even after prolonged control strategy execution, avoiding potential problems that may arise from the prolonged operation of the control strategy, such as deviations from normal system parameters or the emergence of new abnormalities. It also ensures the system's adaptability and real-time performance, enabling it to promptly respond to changes in external conditions or the pump's internal state, further improving the reliability and safety of the pump's operation.

[0118] Please refer to Figure 4 , is a schematic structural diagram of a water pump control device provided by an embodiment of the present invention, the water pump control device may include:

[0119] An acquisition module 100 is used to acquire water pump parameters;

[0120] A level determination module 200 is used to determine a water pump protection level based on water pump parameters;

[0121] The control module 300 is used to control the water pump to execute a corresponding control strategy based on the water pump protection level.

[0122] Based on the above embodiment, in a specific embodiment, the level determination module 200 can be specifically used to:

[0123] When the water pump parameter is greater than the first threshold, the water pump protection level is determined to be level one;

[0124] When the water pump parameter is greater than the second threshold and less than the first threshold, the water pump protection level is determined to be level two;

[0125] When the water pump parameter is greater than the third threshold and less than the second threshold, the water pump protection level is determined to be level three.

[0126] Based on the above embodiment, in a specific embodiment, the control module 300 can be used to:

[0127] When the water pump protection level is level one, the water pump is controlled to reduce the frequency;

[0128] When the water pump protection level is level 2, the water pump is prohibited from increasing frequency;

[0129] When the water pump protection level is level three, the water pump is controlled to reduce the frequency increase rate.

[0130] Based on the above embodiment, in a specific embodiment, the control module 300 can be used to:

[0131] Controlling the rotation speed of the water pump to decrease to a first rotation speed value;

[0132] Control the water pump to prohibit frequency increase, including:

[0133] The rotation speed of the water pump is controlled to be maintained at a second rotation speed value.

[0134] Based on the above embodiment, in a specific embodiment, the water pump inverter parameters include module temperature and output current;

[0135] On this basis, the level determination module 200 can be specifically used to:

[0136] If the module temperature is greater than the first temperature threshold, and / or the output current is greater than the first current threshold, and / or the outlet water pressure is greater than the first pressure threshold, the water pump protection level is determined to be level one;

[0137] When the module temperature is lower than the first temperature threshold, the output current is lower than the first current threshold, and the outlet water pressure is lower than the first pressure threshold, if the module temperature is higher than the second temperature threshold, and / or the output current is higher than the second current threshold, and / or the outlet water pressure is higher than the second pressure threshold, then the water pump protection level is determined to be level two;

[0138] When the module temperature is lower than the second temperature threshold, the output current is lower than the second current threshold, and the water outlet pressure is lower than the second pressure threshold, if the module temperature is higher than the third temperature threshold, and / or the output current is higher than the third current threshold, and / or the water outlet pressure is higher than the third pressure threshold, the water pump protection level is determined to be level three.

[0139] Based on the above embodiment, in a specific embodiment, the control module 300 may also be used to:

[0140] determining whether the time for controlling the water pump to execute the control strategy exceeds a fourth threshold;

[0141] If yes, the process returns to the acquisition module 100 to execute the step of acquiring the water pump parameters.

[0142] Based on the above embodiment, in a specific embodiment, the acquisition module 100 can be specifically used to:

[0143] Obtain the module temperature of the water pump inverter through the temperature sensor;

[0144] Obtain the output current of the water pump inverter through the current transformer;

[0145] The water outlet pressure of the water pump is obtained through the pressure sensor.

[0146] This embodiment provides an electronic device, including a processor and a memory, wherein the memory is used to store at least one instruction. When the instruction is loaded and executed by the processor, the above-mentioned water pump control method is implemented. Its execution method and beneficial effects are similar and will not be repeated here.

[0147] An embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned water pump control method is implemented. Its execution method and beneficial effects are similar and will not be repeated here.

[0148] It should be noted that although the above describes the various steps in a specific order, it does not mean that the steps must be performed in the above specific order. In fact, some of these steps can be executed concurrently or even in a different order as long as the required functions can be achieved.

[0149] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for controlling a water pump, characterized in that: include: Obtain water pump parameters; the water pump parameters include water outlet pressure and water pump inverter parameters; determining a water pump protection level based on the water pump parameters; Based on the water pump protection level, the water pump is controlled to execute a corresponding control strategy.

2. The method according to claim 1, characterized in that The determining of the water pump protection level based on the water pump parameters includes: When the water pump parameter is greater than a first threshold, determining that the water pump protection level is level one; When the water pump parameter is greater than a second threshold and less than the first threshold, determining that the water pump protection level is level two; When the water pump parameter is greater than the third threshold and less than the second threshold, the water pump protection level is determined to be level three.

3. The method according to claim 2, characterized in that The controlling the water pump to execute a corresponding control strategy based on the water pump protection level includes: When the water pump protection level is level one, the water pump is controlled to reduce the frequency; When the water pump protection level is level 2, the water pump is controlled to prohibit frequency increase; When the water pump protection level is level three, the water pump is controlled to reduce the frequency increase rate.

4. The method according to claim 3, characterized in that The controlling of the water pump to reduce the frequency includes: Controlling the rotation speed of the water pump to decrease to a first rotation speed value; The control of prohibiting the water pump from increasing frequency includes: The rotation speed of the water pump is controlled to be maintained at a second rotation speed value.

5. The method according to claim 2, characterized in that The water pump inverter parameters include module temperature and output current; When the water pump parameter is greater than a first threshold, determining that the water pump protection level is level one includes: If the module temperature is greater than a first temperature threshold, and / or the output current is greater than a first current threshold, and / or the outlet water pressure is greater than a first pressure threshold, then the water pump protection level is determined to be level one; When the water pump parameter is greater than the second threshold and less than the first threshold, determining that the water pump protection level is level two includes: When the module temperature is lower than a first temperature threshold, the output current is lower than the first current threshold, and the outlet water pressure is lower than the first pressure threshold, if the module temperature is higher than a second temperature threshold, and / or the output current is higher than a second current threshold, and / or the outlet water pressure is higher than a second pressure threshold, then the water pump protection level is determined to be level two; When the water pump parameter is greater than the third threshold and less than the second threshold, determining that the water pump protection level is level three includes: When the module temperature is lower than the second temperature threshold, the output current is lower than the second current threshold, and the water outlet pressure is lower than the second pressure threshold, if the module temperature is higher than the third temperature threshold, and / or the output current is higher than the third current threshold, and / or the water outlet pressure is higher than the third pressure threshold, then the water pump protection level is determined to be level three.

6. The method according to claim 1, characterized in that After controlling the water pump to execute a corresponding control strategy based on the water pump protection level, the method further includes: determining whether the time for controlling the water pump to execute the control strategy exceeds a fourth threshold; If yes, return to the step of obtaining the water pump parameters.

7. The method according to claim 1, characterized in that The obtaining of water pump parameters includes: Obtaining the module temperature of the water pump inverter through a temperature sensor; Obtaining the output current of the water pump inverter through a current transformer; The water outlet pressure of the water pump is obtained through a pressure sensor.

8. A water pump control device, characterized in that: include: Acquisition module, used to obtain water pump parameters; a level determination module, configured to determine a water pump protection level based on the water pump parameters; The control module is used to control the water pump to execute a corresponding control strategy based on the water pump protection level.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the method for controlling the water pump according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the water pump control method according to any one of claims 1 to 7 is implemented.

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