Operating method of pump and related device

Abstract

The invention provides a pump operation method and a related device. When communication is lost, whether the current rotating speed of a pump is smaller than the preset rotating speed or not is judged, if the current rotating speed is smaller than the preset rotating speed, whether the current temperature of the pump is in the rising trend or not is judged, and if the current temperature is in the rising trend, the pump operates at the preset rotating speed, that is, the rotating speed of the pump is increased so as to reduce the pump temperature. Otherwise, the pump is dormant. When the current rotating speed is larger than the preset rotating speed, whether the current temperature of the pump is lower than the preset low temperature or not is judged, and if the current temperature is lower than the preset low temperature, the pump is dormant; if the current temperature is higher than the preset low temperature, whether the current temperature change trend of the pump is the rising trend or not is judged, and if the current temperature is the rising trend, the rotating speed of the pump is increased, and the pump temperature is reduced; otherwise, the pump does not act, or the current rotating speed of the pump is reduced to the preset rotating speed. The rotating speed of the pump can be adjusted when the pump cannot receive the rotating speed control instruction, the cooling requirement of the heat exchange system for the pump is met, and the energy consumption of the pump is reduced.

Description

Technical Field

[0001] This application relates to the field of pump control, and in particular to a pump operation method and related apparatus. Background Technology

[0002] Pumps can function as actuators in vehicles, receiving speed control commands from a host computer and adjusting their own speed to ensure optimal operation. Pumps can drive the flow of media (water, oil, etc.) to cool heat exchange systems; for example, they can drive water flow to cool air conditioning and battery thermal management systems.

[0003] However, when communication between the pump and the host computer is lost for various reasons, the pump cannot receive the speed control command sent by the host computer. The pump will run according to the speed in the last received speed control command, which makes it impossible to control the pump at a suitable speed and affects the normal operation of the pump. Therefore, providing a suitable pump operation method has become an urgent technical problem to be solved. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a pump operation method and apparatus that ensures that the pump can still reasonably adjust its own speed to meet the cooling requirements of the heat exchange system when it cannot receive a speed control command. The specific solution is as follows:

[0005] On one hand, this application provides a method for operating a pump, the method comprising:

[0006] Determine if communication is lost:

[0007] The communication was lost:

[0008] Determine whether the current speed of the pump is less than the preset speed:

[0009] If the current rotational speed is less than the preset rotational speed: determine if the current temperature of the pump is trending upwards: if the current temperature is trending upwards, the pump operates at the preset rotational speed; otherwise, the pump goes into sleep mode.

[0010] If the current rotational speed is greater than the preset rotational speed: determine if the current temperature of the pump is lower than the preset low temperature.

[0011] When the current temperature is lower than the preset low temperature, the pump goes into sleep mode.

[0012] If the current temperature is higher than the preset low temperature: determine whether the current temperature change trend of the pump is upward: if the current temperature is upward: the pump speed is increased; otherwise, the pump does not operate, or the pump speed is reduced from the current speed to the preset speed.

[0013] Optionally, the current rotational speed being less than the preset rotational speed includes: the current rotational speed being zero, and the pump being in sleep mode includes: the pump not operating;

[0014] The current rotational speed being less than the preset rotational speed includes: the current rotational speed being greater than zero; the pump going into sleep mode includes: the pump rotational speed being reduced to zero.

[0015] Optionally, if the current speed of the pump is zero, the pump operating at the preset speed includes: the pump starting and operating at the preset speed;

[0016] If the current speed of the pump is not zero, the operation of the pump at the preset speed includes: the pump increasing from the current speed to the preset speed.

[0017] Optionally, after the pump speed drops from the current speed to the preset speed when the current temperature is not trending upwards, the method further includes:

[0018] If the current temperature of the pump is decreasing, the pump speed drops to zero.

[0019] Optionally, the method further includes:

[0020] Determine whether the pump voltage is showing a downward trend;

[0021] If the voltage of the pump is decreasing, the pump speed is reduced.

[0022] Optionally, the method further includes:

[0023] Determine whether the voltage of the pump is less than a preset voltage;

[0024] If the voltage of the pump is less than the preset voltage, the pump will go into sleep mode.

[0025] Optionally, if the pump voltage is less than the preset voltage, the pump sleep mode includes:

[0026] If the duration for which the pump's voltage is less than the preset voltage is greater than the preset duration, then the pump will go into hibernation.

[0027] In another aspect, embodiments of this application also provide a pump operating system, the system including a pump and a controller, the controller being used to execute the pump operating method.

[0028] In another aspect, embodiments of this application provide a computer device, the computer device including a processor and a memory:

[0029] The memory is used to store program code and transmit the program code to the processor;

[0030] The processor is used to execute the methods described above according to the instructions in the program code.

[0031] In another aspect, embodiments of this application provide a computer-readable storage medium for storing a computer program for performing the methods described above.

[0032] This application provides a pump operation method and related apparatus, which determines whether communication is lost: if communication is lost, it means the pump cannot receive speed control commands and cannot adjust its own speed in time, so it is necessary to determine how to adjust the speed change in a timely manner. It can be determined whether the current pump speed is less than a preset speed. If the current speed is less than the preset speed, it is determined whether the current pump temperature is trending upwards. If the current temperature is trending upwards, the pump operates at the preset speed, that is, the pump speed is increased to reduce the pump temperature; otherwise, the pump goes into sleep mode. If the current speed is greater than the preset speed, it is determined whether the current pump temperature is lower than a preset low temperature. If the current temperature is lower than the preset low temperature, the pump goes into sleep mode. If the current temperature is higher than the preset low temperature, it is determined whether the current temperature change trend is upwards. If the current temperature is trending upwards, the pump speed is increased to reduce the pump temperature; otherwise, the pump does not operate, or the pump speed is reduced from the current speed to the preset speed.

[0033] In summary, in this embodiment, by comparing the current pump speed with the preset speed, comparing the current pump temperature with the preset low temperature, and determining whether the current temperature is trending upward, it is possible to promptly determine whether the pump speed should be increased. This ensures that even when the pump cannot receive speed control commands, it can still reasonably adjust its own speed based on conditions such as temperature and speed to meet the cooling requirements of the heat exchange system and reduce the pump's energy consumption. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic flowchart of a pump operation method provided in an embodiment of this application is shown;

[0036] Figure 2 A structural block diagram of a pump operating system provided in an embodiment of this application;

[0037] Figure 3This is a structural diagram of a computer device provided in an embodiment of this application. Detailed Implementation

[0038] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] As described in the background section, when communication between the pump and the host computer is lost for various reasons, the pump cannot receive speed control commands from the host computer. The pump will only operate according to the speed specified in the last received speed control command, unable to adjust its own speed, resulting in an inability to control the pump at a suitable speed and affecting its normal operation. For example, if communication between the pump and the host computer is lost when the pump is stopped, and the heat exchange system needs to use the pump for cooling, the pump will not be able to start in time because it cannot receive speed control commands. Similarly, if communication between the pump and the host computer is lost when the pump is running, but the heat exchange system needs to increase or decrease the cooling effect, the pump speed cannot be increased or decreased in time, and the pump cannot operate normally.

[0041] Based on the above technical problems, this application provides a pump operation method and related device. By comparing the current pump speed with a preset speed, comparing the current pump temperature with a preset low temperature, and determining whether the current temperature is on an upward trend, it can promptly determine whether the pump speed should be increased. This ensures that even when the pump cannot receive a speed control command, it can still reasonably adjust its own speed based on conditions such as temperature and speed to meet the cooling requirements of the heat exchange system and reduce the pump's energy consumption.

[0042] For ease of understanding, the following detailed description, in conjunction with the accompanying drawings, provides an embodiment of a pump operation method and related apparatus provided in this application.

[0043] refer to Figure 1 The diagram shown is a flowchart illustrating a pump operation method provided in an embodiment of this application. The method may include the following steps.

[0044] S101, determine whether communication has been lost.

[0045] Specifically, it can be determined whether the communication between the pump and the host computer is lost. If the communication is lost, the pump cannot receive the speed control command sent by the host computer in time, which makes it impossible to control the pump at a suitable speed and affects the normal operation of the pump.

[0046] S102, Communication lost: Determine whether the current speed of the pump is less than the preset speed.

[0047] Various methods can be used to determine if pump communication has been lost. For example, if the pump does not receive any commands within a certain period, communication loss is considered a failure. After determining that pump communication has been lost, the current pump speed can be obtained and compared with a preset speed. The preset speed can be a pre-defined speed used to determine whether the current speed is high or low.

[0048] S103, Current speed is less than preset speed: Determine whether the current temperature of the pump is trending upward.

[0049] If the current speed is lower than the preset speed, it indicates that the current speed is relatively low, and it is necessary to further determine whether the pump speed needs to be adjusted based on the current pump temperature. Specifically, when the current pump speed is lower than the preset speed, it is necessary to further determine whether the pump's current temperature is trending upwards. The current pump temperature can be understood as the temperature of the medium being driven by the pump at the current moment; the medium could be, for example, water or oil. The current pump temperature can be measured by a temperature sensing element installed on the pump.

[0050] For example, when determining whether the current temperature of a pump is on an upward trend, the current temperature of the pump can be collected at different times, and the trend of the pump's current temperature change can be used to determine whether it is an upward or downward trend.

[0051] S104: The current temperature is trending upward, and the pump runs at the preset speed; S105: Conversely, the pump goes into sleep mode.

[0052] Specifically, if the pump's current temperature is trending upwards, for example, if the pump's current temperature change is ΔTemp = 1℃ / s, it indicates that the temperature of the medium driven by the pump is gradually increasing. This increases the cooling demand of the heat exchange system on the pump, necessitating a reduction in the pump's current temperature. Since the pump's current speed is insufficient to achieve this cooling, the speed needs to be increased. The pump's speed should be adjusted from the lower current speed to a higher preset speed, meaning the pump will operate at the preset speed. This will lower the pump's current temperature, preventing it from overheating and burning out, and will also meet the cooling requirements of the heat exchange system.

[0053] S106, Current speed is greater than preset speed: Determine whether the current temperature of the pump is lower than the preset low temperature.

[0054] Specifically, when it is determined that the current speed of the pump is greater than the preset speed, it indicates that the current speed of the pump is too high. In this case, it is necessary to combine the current temperature of the pump to further determine whether it is necessary to reduce the current speed of the pump in order to reduce the energy consumption of the pump and save energy.

[0055] The preset low temperature can be a pre-set lower temperature, which can be understood as the critical temperature for determining whether to reduce the pump speed. That is, after determining that the current pump speed is greater than the preset speed, it is necessary to determine whether the current pump temperature is lower than the preset low temperature.

[0056] S107, the current temperature is lower than the preset low temperature, the pump is in sleep mode.

[0057] Specifically, if the current temperature of the pump is lower than the preset low temperature, it means that the current temperature of the pump is low enough, the cooling demand of the heat exchange system on the pump is reduced, and the pump does not need to run at a high current speed. In other words, there is no need to use the pump speed for cooling. Therefore, the pump can be put into hibernation, that is, the current speed of the pump is reduced to zero, thereby reducing the energy consumption of the pump and saving energy.

[0058] S108, Current temperature is higher than preset low temperature: Determine whether the current temperature change trend of the pump is upward.

[0059] Specifically, if the pump's current temperature is higher than the preset low temperature, it indicates that the pump's current temperature is relatively high. Therefore, it's necessary to further determine how to adjust the pump's speed based on the current temperature, i.e., whether the pump's current temperature is trending upwards. This trend can be determined by collecting current temperatures at different times.

[0060] S109, the current temperature is trending upward: the pump speed is increased; S110, conversely, the pump does not operate, or the pump speed is reduced from the current speed to the preset speed.

[0061] Specifically, if the current temperature of the pump is trending upward, the current pump speed cannot meet the cooling requirements of the heat exchange system, which causes the temperature of the pump-driven medium to rise continuously. In this case, it is necessary to increase the pump speed in time to prevent the current temperature from rising further, or even to reduce the current temperature of the pump, thereby meeting the cooling requirements of the heat exchange system and achieving a cooling effect.

[0062] If the pump's current speed is not on an upward trend, for example, it is on a downward trend or remains unchanged, it means that the pump's current speed meets the cooling requirements, and the pump speed does not need to be adjusted, that is, the pump does not operate. Of course, the pump can also be reduced from the current speed to the preset speed, that is, the pump speed is appropriately reduced, so as to reduce the pump's energy consumption and save energy while meeting the cooling requirements.

[0063] In one possible implementation, S102 current speed is less than preset speed includes: current speed is zero, S105 pump sleep includes: pump does not operate; S102 current speed is less than preset speed includes: current speed is greater than zero, S105 pump sleep includes: pump speed drops to zero.

[0064] Specifically, since the pump may be in a stopped state or an operating state when communication is lost, appropriate actions need to be taken depending on the state. In S102, if the pump's current speed is less than the preset speed, the current speed can be set to zero, meaning the pump is stopped. In S105, controlling the pump to hibernate means that the pump does not operate, i.e., the pump remains in a stopped state.

[0065] Furthermore, in S102, the pump's current speed is less than the preset speed, or it can be greater than zero. That is, when the pump is in running mode, if the current speed is less than the preset speed, then in S105, controlling the pump to hibernate can be achieved by reducing the pump's speed from the current speed to zero, i.e., controlling the pump to change from running mode to shutdown mode. In summary, by handling the pump's different states when communication is lost, better pump control is achieved, and the pump's actions are more consistent with its shutdown or running states.

[0066] In one possible implementation, if the current speed of the pump is zero, S104 pump operating at a preset speed includes: the pump starts and operates at the preset speed; if the current speed of the pump is not zero, S104 pump operating at a preset speed includes: the pump increases from the current speed to the preset speed.

[0067] Specifically, when the pump's current speed is zero, the pump is in a stopped state. If the pump's current speed is low and the pump's current temperature is rising, the S104 pump will run at a preset speed. This allows the pump to be started and run at the preset speed, thus enabling the pump to be started in time when it stops, thereby reducing the pump's current temperature and meeting the cooling requirements.

[0068] If the pump's current speed is not zero, and the pump is in operation, then if the current speed is low and the pump's temperature is rising, the S104 pump will operate at a preset speed. This can be achieved by increasing the pump's speed from its current speed to the preset speed, i.e., directly increasing the pump's speed while it is running. This allows for timely adjustment of the pump's speed and reduces its temperature. In summary, by performing appropriate operations when the pump is in both stopped and running states, the cooling requirements of the heat exchange system can be met promptly.

[0069] In one possible implementation, S110, after the pump speed drops from the current speed to the preset speed when the current temperature is not trending upward, it can also be executed that if the current temperature of the pump is trending downward, the pump speed is reduced to zero.

[0070] Specifically, in S110, if the current temperature of the pump is not trending upward, after reducing the current speed of the pump to the preset speed, it is possible to continuously monitor whether the current temperature of the pump continues to drop. If it continues to drop, it indicates that the pump is too cold, and the pump speed can be reduced to zero, thereby reducing the energy consumption of the pump and putting the pump into a shutdown state, i.e., pump hibernation.

[0071] In one possible implementation, the pump voltage can also be assessed, specifically whether the pump voltage is trending downwards; if the pump voltage is trending downwards, the pump speed is reduced.

[0072] Specifically, the pump's voltage reflects the battery charge. To ensure safe operation, the pump's voltage should be monitored regularly. After assessing the pump's speed and temperature, it's also possible to determine if the pump's voltage is trending downwards. This can be determined by observing the pump's voltage at different times.

[0073] If the pump voltage is decreasing, it indicates that the pump's battery power is gradually decreasing. To extend the pump's operating time, it's necessary to reduce battery consumption, which means reducing the pump's speed. This allows the pump to run for as long as possible to meet extended cooling requirements. Furthermore, by monitoring pump voltage changes and promptly reducing the pump speed, it's ensured that the voltage meets the power supply requirements for the pump's operation, thus guaranteeing safe pump operation.

[0074] In one possible implementation, it can be further determined whether the pump voltage is less than a preset voltage; if the pump voltage is less than the preset voltage, the pump goes into sleep mode.

[0075] Specifically, after determining that the pump voltage is decreasing, the relationship between the pump voltage and a preset voltage can be further assessed. The preset voltage is a pre-defined voltage that serves as a critical voltage for determining whether the pump should enter sleep mode. If the pump voltage is lower than the preset voltage, the pump is controlled to enter sleep mode, thus stopping the pump. This prevents the pump from operating at excessively low voltage, ensuring the safety of the pump hardware and preventing damage from extremely low voltage operation.

[0076] In one possible implementation, if the pump voltage is less than a preset voltage, the pump can specifically be put into sleep mode if the duration for which the pump voltage is less than the preset voltage is greater than a preset duration.

[0077] Specifically, if the pump voltage is lower than the preset voltage for too long, i.e., exceeding the preset duration, the pump will be put into sleep mode. This can prevent the pump from being put into sleep mode due to unstable voltage. By continuously monitoring the pump voltage, it is possible to more accurately determine whether the pump voltage is really too low, thereby avoiding delays in the normal operation of the pump.

[0078] This application provides a pump operation method that determines whether communication is lost. If communication is lost, it means the pump cannot receive speed control commands and cannot adjust its speed in time. Therefore, it is necessary to determine how to adjust the speed change promptly. The method involves determining whether the pump's current speed is less than a preset speed. If the current speed is less than the preset speed, it involves determining whether the pump's current temperature is trending upwards. If the current temperature is trending upwards, the pump operates at the preset speed, i.e., the pump speed is increased to lower the pump temperature; otherwise, the pump goes into hibernation. If the current speed is greater than the preset speed, it involves determining whether the pump's current temperature is lower than a preset low temperature. If the current temperature is lower than the preset low temperature, the pump goes into hibernation. If the current temperature is higher than the preset low temperature, it involves determining whether the pump's current temperature trend is upwards. If the current temperature is trending upwards, the pump speed is increased to lower the pump temperature; otherwise, the pump does not operate, or the pump speed is reduced from the current speed to the preset speed.

[0079] In summary, in this embodiment, by comparing the current pump speed with the preset speed, comparing the current pump temperature with the preset low temperature, and determining whether the current temperature is trending upward, it is possible to promptly determine whether the pump speed should be increased. This ensures that even when the pump cannot receive speed control commands, it can still reasonably adjust its own speed based on conditions such as temperature and speed to meet the cooling requirements of the heat exchange system and reduce the pump's energy consumption.

[0080] This application provides a pump operating system, with reference to... Figure 2 As shown, the system includes a pump and a controller, which executes the pump's operation. This ensures that even when the pump cannot receive speed control commands, it can still adjust its speed to meet the cooling requirements of the heat exchange system and reduce the pump's energy consumption.

[0081] In another aspect, embodiments of this application provide a computer device, with reference to Figure 3 The diagram shown is a structural diagram of a computer device provided in an embodiment of this application. The computer device includes a processor 310 and a memory 320.

[0082] The memory 320 is used to store program code and transmit the program code to the processor 310;

[0083] The processor 310 is used to execute the method provided in the above embodiments according to the instructions in the program code.

[0084] The computer device may include a terminal device or a server, and the aforementioned apparatus may be configured in the computer device.

[0085] In another aspect, embodiments of this application also provide a storage medium for storing a computer program for executing the methods provided in the above embodiments.

[0086] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by program instructions in hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium can be at least one of the following media: read-only memory (ROM), RAM, magnetic disk, or optical disk, etc., and other media capable of storing program code.

[0087] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on its differences from other embodiments. In particular, the apparatus embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0088] The above description is merely a preferred embodiment of this application. Although this application has disclosed preferred embodiments above, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of this application. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solutions of this application shall still fall within the protection scope of the technical solutions of this application.

Claims

1. A method of operating a pump, characterized by, The method comprises: determining whether the communication is lost: the communication is lost: determining whether the current rotating speed of the pump is less than a preset rotating speed: the current rotating speed is less than the preset rotating speed: determining whether the current temperature of the pump is in an upward trend: the current temperature is in an upward trend, and the pump operates at the preset rotating speed; otherwise, the pump is in hibernation; the current rotating speed is greater than the preset rotating speed: determining whether the current temperature of the pump is lower than a preset low temperature: the current temperature is lower than the preset low temperature, and the pump is in hibernation; the current temperature is higher than the preset low temperature: determining whether the current temperature of the pump is in an upward trend: the current temperature is in an upward trend: the rotating speed of the pump is increased; otherwise, the pump is in inaction, or the rotating speed of the pump is reduced from the current rotating speed to the preset rotating speed.

2. The method of claim 1, wherein: the current rotating speed being less than the preset rotating speed comprises that the current rotating speed is zero, and the pump being in hibernation comprises that the pump is in inaction; the current rotating speed being less than the preset rotating speed comprises that the current rotating speed is greater than zero, and the pump being in hibernation comprises that the rotating speed of the pump is reduced to zero.

3. The method of claim 1, wherein:

4. The method of claim 1, wherein, if the current rotating speed of the pump is zero, the pump operating at the preset rotating speed comprises that the pump is started and operates at the preset rotating speed; if the current rotating speed of the pump is not zero, the pump operating at the preset rotating speed comprises that the rotating speed of the pump is increased from the current rotating speed to the preset rotating speed.

5. The method according to any one of claims 1 to 4, characterized in that, After the current temperature is not in an upward trend and the rotating speed of the pump is reduced from the current rotating speed to the preset rotating speed, the method further comprises: if the current temperature of the pump is in a downward trend, the rotating speed of the pump is reduced to zero. The method further comprises:

6. The method of claim 5, wherein, determining whether the voltage of the pump is in a downward trend; if the voltage of the pump is in a downward trend, the rotating speed of the pump is reduced. The method further comprises:

7. The method of claim 6, wherein, determining whether the voltage of the pump is less than a preset voltage; if the voltage of the pump is less than the preset voltage, the pump is in hibernation.

8. A pump operation system characterized by comprising: If the voltage of the pump is less than the preset voltage, the pump being in hibernation comprises:

9. A computer device, comprising: if the duration that the voltage of the pump is less than the preset voltage is greater than a preset duration, the pump is in hibernation. The system comprises a pump and a controller configured to execute the operating method of the pump according to any one of claims 1-7. The computer device comprises a processor and a memory:

10. A computer-readable storage medium, characterized in that, the memory is configured to store program code and transmit the program code to the processor; the processor is configured to execute the method according to any one of claims 1-7 according to instructions in the program code. The computer readable storage medium is configured to store a computer program configured to execute the method according to any one of claims 1-7.

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