A self-adaptive control method and system for lift and heat dissipation

Abstract

The application discloses a self-adaptive control method and a self-adaptive control system of lift and heat dissipation, relates to the technical field of thermal management, and determines a current height difference of a power head and a water pump, and then determines a target lift of the water pump in combination with local resistance and along-path resistance of cooling liquid in the whole cooling loop, dynamically adjusts a rotating speed of the water pump according to the target lift, and matches an actual lift of the water pump with the target lift, so that the cooling liquid can be circulated with sufficient pressure and flow under different working conditions, and the situation of insufficient circulation of the cooling liquid and excessively high energy consumption can be effectively avoided. The current environmental temperature and the load current of the power head are monitored, the target heat dissipation is dynamically determined according to the environmental temperature and the load current, the rotating speed of the fan in the radiator is dynamically regulated according to the target heat dissipation, and therefore the radiator can be radiated with suitable air volume under different working conditions, and the situation of overheating or excessive cooling of the motor can be effectively avoided.

Description

Technical Field

[0001] This application relates to the field of thermal management technology, and in particular to an adaptive control method and adaptive control system for head and heat dissipation. Background Technology

[0002] With the development of new energy technologies, more and more piling equipment is adopting electric motor-driven working heads to replace traditional hydraulic power head working heads. Electric motor-driven heads directly drive drill bits or other tools via electric motors, offering higher efficiency, lower noise, and greater environmental friendliness. However, electric motor-driven working heads generate heat during operation, especially under high loads and for extended periods. Unlike hydraulic systems, electric motor-driven heads lack a centralized hydraulic cooling system, thus requiring a dedicated thermal management system to ensure the motor temperature remains within a safe range. Due to the large vertical movement and various posture changes of the electric motor-driven head, traditional thermal management systems suffer from several problems, including: the water pump delivers coolant to the motor-driven head at a fixed head, which can lead to insufficient coolant circulation or excessive energy consumption due to the vertical movement of the motor; and the lack of consideration for the varying heat dissipation requirements caused by changes in ambient temperature and motor load, which can easily result in overheating or overcooling of the motor-driven head.

[0003] Therefore, how to effectively avoid insufficient coolant circulation, excessive energy consumption, and overheating or overcooling of the motor power head is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this application is to provide an adaptive control method and adaptive control system for head and heat dissipation, which can solve the problems that water pumps delivering cooling water to motor power heads at a fixed head can easily cause insufficient coolant circulation or excessive energy consumption, and that the different heat dissipation requirements of ambient temperature changes and motor power head load changes can easily lead to overheating or overcooling of the motor power head.

[0005] To address the aforementioned technical problems, this application provides an adaptive control method for head and heat dissipation, comprising:

[0006] The current ambient temperature, the current load current of the power head, and the current height of the power head above the ground are obtained. The current height difference between the power head and the water pump is determined based on the current height and the height of the water pump above the ground.

[0007] The target head of the water pump is determined based on the current height difference, the local resistance of the coolant in the cooling circuit, and the friction resistance. The speed of the water pump is then adjusted to bring the pump head to the target head.

[0008] The target heat dissipation is determined based on the current ambient temperature and the current load current, and the fan speed in the radiator is adjusted according to the target heat dissipation.

[0009] In one optional embodiment, determining the target head of the water pump based on the current height difference, the local resistance of the coolant in the cooling circuit, and the friction resistance includes:

[0010] The target head is calculated according to a preset formula.

[0011] The preset formula is as follows: .

[0012] In one optional embodiment, determining the target heat dissipation based on the current ambient temperature and the current load current includes:

[0013] The first preset relationship table is invoked, and the current ambient temperature coefficient corresponding to the current ambient temperature is determined according to the first preset relationship table; wherein, the first preset relationship table includes the correspondence between ambient temperature and ambient temperature coefficient.

[0014] The second preset relationship table is invoked, and the current load current coefficient corresponding to the current load current is determined according to the second preset relationship table; wherein, the second preset relationship table includes the correspondence between load current and load current coefficient.

[0015] The target heat dissipation is obtained by multiplying the current ambient temperature coefficient and the current load current coefficient.

[0016] In one optional embodiment, adjusting the fan speed in the radiator according to the target heat dissipation includes:

[0017] Determine the actual heat dissipation, calculate the difference between the target heat dissipation and the actual heat dissipation, and obtain the error.

[0018] The adjustment amount is determined based on the error and the PID algorithm, and the fan speed in the heat sink is adjusted according to the adjustment amount.

[0019] In one alternative embodiment, determining the actual heat dissipation includes:

[0020] The third preset relationship table is invoked, and the current height difference coefficient corresponding to the current height difference is determined according to the third preset relationship table; wherein, the third preset relationship table includes the correspondence between height difference and height difference coefficient.

[0021] The actual heat dissipation is obtained by multiplying the current fan speed, the current water pump speed, and the current height difference coefficient in the radiator.

[0022] In an optional embodiment, it further includes:

[0023] The temperature of the motor in the power head is obtained from the temperature sensor.

[0024] When the motor temperature exceeds the threshold, the power of the water pump and the power of the fan are adjusted to their respective set maximum values.

[0025] When the motor temperature is below the threshold, the current ambient temperature, the current load current of the power head, and the current height of the power head above the ground are obtained. The current height difference between the power head and the water pump is determined based on the current height and the height of the water pump above the ground. The target head of the water pump is determined based on the current height difference, the local resistance and friction resistance of the coolant in the cooling circuit, and the speed of the water pump is adjusted to adjust the head of the water pump to the target head. The target heat dissipation is determined based on the current ambient temperature and the current load current, and the speed of the fan in the radiator is adjusted based on the target heat dissipation.

[0026] In an optional embodiment, it further includes:

[0027] After the power head stops working, the coolant level detected by the liquid level sensor in the radiator is obtained.

[0028] When the coolant level is lower than the preset level, coolant is added to the radiator using a water replenishment pipe.

[0029] This application also provides an adaptive control system for head and heat dissipation, including: a radiator, a water pump, a height sensor, and a control module.

[0030] The radiator is connected to the power head via an inlet pipe and a return pipe. The water pump is located on the inlet pipe. The height sensor is mounted on the power head and is used to detect the current height of the power head above the ground. The control module is connected to the water pump, the radiator, the height sensor, and the power head respectively. The control module is used to execute the adaptive control method of head and heat dissipation.

[0031] In one optional embodiment, an auxiliary water tank connected to the radiator is further included. The auxiliary water tank is located above the radiator, and the volume of the auxiliary water tank is greater than or equal to the sum of the volume of the motor cooling pipe, the volume of the inlet pipe, the volume of the return pipe, and the volume of the coolant expansion of the power head.

[0032] In one optional embodiment, it further includes a water supply pipe connected to the radiator, a liquid level sensor disposed in the radiator, a degassing pipe connected to the auxiliary water tank, and a temperature sensor installed on the power head.

[0033] This application provides an adaptive control method for head and heat dissipation, comprising: determining the current height difference between the power head and the water pump to accurately understand the actual height difference in the coolant circulation loop; determining the target head of the water pump by combining the local resistance and friction resistance of the coolant in the entire cooling loop; and dynamically adjusting the speed of the water pump according to the calculated target head to match the actual head with the target head. This dynamic adjustment mechanism ensures that the coolant circulates with sufficient pressure and flow under different operating conditions, thereby effectively avoiding insufficient coolant circulation and excessive energy consumption. By monitoring the current ambient temperature and the load current of the power head, the current heat dissipation demand can be accurately understood. Ambient temperature affects the heat dissipation efficiency of the radiator, while load current directly reflects the motor's heating status. The target heat dissipation can be dynamically determined based on the ambient temperature and load current. The speed of the fan in the radiator is dynamically adjusted according to the target heat dissipation. This dynamic adjustment mechanism ensures that the radiator dissipates heat with appropriate airflow under different operating conditions, thereby effectively avoiding motor overheating or overcooling.

[0034] The beneficial effects and methods of the adaptive control device for head and heat dissipation provided in this application are as described above. Attached Figure Description

[0035] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A flowchart of an adaptive control method for head and heat dissipation provided in an embodiment of this application.

[0037] Figure 2 This is a structural diagram of an adaptive control system for head and heat dissipation provided in an embodiment of this application.

[0038] Figure 3 This is a structural diagram of another adaptive control system for head and heat dissipation provided in an embodiment of this application.

[0039] The attached diagram is labeled as follows: 1-Radiator, 101-Fan, 2-Water Pump, 3-Control Module, 4-Power Head, 5-Inlet Water Pipe, 6-Return Water Pipe, 7-Auxiliary Water Tank, 8-Replenishment Water Pipe, 9-Degassing Pipe, 10-Temperature Sensor. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0041] The core of this application is to provide an adaptive control method and adaptive control system for head and heat dissipation, which can effectively avoid insufficient coolant circulation, excessive energy consumption, and overheating or overcooling of the motor power head.

[0042] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] Figure 1 A flowchart of an adaptive control method for head and heat dissipation provided in an embodiment of this application is shown below. Figure 1 As shown, the adaptive control method for head and heat dissipation includes:

[0044] S10: Obtain the current ambient temperature, the current load current of the power head, and the current height of the power head above the ground. Determine the current height difference between the power head and the water pump based on the current height and the height of the water pump above the ground.

[0045] S11: Determine the target head of the water pump based on the current height difference, the local resistance of the coolant in the cooling circuit, and the friction resistance, and adjust the speed of the water pump to adjust the head of the water pump to the target head.

[0046] S12: Determine the target heat dissipation based on the current ambient temperature and current load current, and adjust the fan speed in the radiator according to the target heat dissipation.

[0047] In step S10, a temperature sensor can be installed in the environment where the power head is located to obtain the current ambient temperature detected by the temperature sensor. A current sensor can be used to obtain the current data of the power head during operation, reflecting its workload. A height sensor can be used to obtain the current height of the power head above the ground; the height sensor can be a laser rangefinder. The height of the water pump above the ground is constant; the difference between the current height of the power head and the water pump is the current height difference between the two.

[0048] In step S11, the target head of the water pump is determined based on the current height difference, the local resistance of the coolant in the entire cooling circuit, and the friction resistance, including: calculating the target head according to a preset formula; wherein, the preset formula is: The pump speed is adjusted according to the calculated target head to achieve the target head.

[0049] Local resistance refers to the resistance generated when fluid encounters local obstacles (such as elbows, valves, tees, radiators, etc.) in the cooling circuit. It is mainly due to sudden changes in the flow direction and velocity of the fluid at these local obstacles, leading to changes in the fluid's kinetic energy and pressure distribution, thus generating resistance. Local resistance can be as much as 10% of the current height difference.

[0050] Friction resistance refers to the resistance generated when a fluid flows along the length of a pipe due to friction between the fluid and the pipe's inner wall. It is primarily caused by viscous friction between the fluid and the pipe wall, and this frictional force persists as the fluid flows. Friction resistance is typically calculated using the Darcy-Weisbach formula: ; This is friction loss (unit: m, representing the height of energy loss). It is the Darcy friction factor (dimensionless). This is the pipe length (unit: m); It is the average velocity of the fluid (unit: m / s); It is the acceleration due to gravity (unit: m / s², usually taken as 9.81 m / s²). 2 ); It is the inner diameter of the pipe (unit: m).

[0051] In step S12, the fan speed in the radiator is dynamically adjusted according to the target heat dissipation; if the heat dissipation demand is high, the fan speed is increased; if the heat dissipation demand is low, the fan speed is reduced to achieve energy saving.

[0052] Determining the target heat dissipation based on the current ambient temperature and current load current specifically includes: calling a first preset relationship table and determining the current ambient temperature coefficient corresponding to the current ambient temperature; wherein the first preset relationship table includes the correspondence between ambient temperature and ambient temperature coefficient; calling a second preset relationship table and determining the current load current coefficient corresponding to the current load current; wherein the second preset relationship table includes the correspondence between load current and load current coefficient; and calculating the product of the current ambient temperature coefficient and the current load current coefficient to obtain the target heat dissipation.

[0053] Adjusting the fan speed in the radiator according to the target heat dissipation includes: determining the actual heat dissipation, calculating the difference between the target heat dissipation and the actual heat dissipation to obtain the error; determining the adjustment amount based on the error and the PID (proportional-integral-derivative) algorithm, and adjusting the fan speed in the radiator according to the adjustment amount.

[0054] Determining the actual heat dissipation includes: calling the third preset relationship table and determining the current height difference coefficient corresponding to the current height difference based on the third preset relationship table; wherein, the third preset relationship table includes the correspondence between height difference and height difference coefficient; calculating the product of the current fan speed, the current water pump speed and the current height difference coefficient in the radiator to obtain the actual heat dissipation.

[0055] Calculate the difference between the target heat dissipation and the actual heat dissipation to obtain the error. According to the error Determining the adjustment amount using PID algorithm Specifically:

[0056] ;in, To adjust the amount, This is the proportionality coefficient. The integral coefficient is... These are the differential coefficients. For error, The integral of the error, This is the derivative of the error.

[0057] The adaptive control method for head and heat dissipation provided in this application includes: determining the current height difference between the power head and the water pump to accurately understand the actual height difference in the coolant circulation loop; determining the target head of the water pump by combining the local resistance and friction resistance of the coolant in the entire cooling loop; and dynamically adjusting the speed of the water pump according to the calculated target head to match the actual head with the target head. This dynamic adjustment mechanism ensures that the coolant circulates with sufficient pressure and flow under different operating conditions, thereby effectively avoiding insufficient coolant circulation and excessive energy consumption. By monitoring the current ambient temperature and the load current of the power head, the current heat dissipation demand can be accurately understood. Ambient temperature affects the heat dissipation efficiency of the radiator, while load current directly reflects the motor's heating status. The target heat dissipation can be dynamically determined based on the ambient temperature and load current. The speed of the fan in the radiator is dynamically adjusted according to the target heat dissipation. This dynamic adjustment mechanism ensures that the radiator dissipates heat with appropriate airflow under different operating conditions, thereby effectively avoiding motor overheating or overcooling.

[0058] Based on the above embodiments, this application embodiment further includes: acquiring the motor temperature in the power head detected by the temperature sensor; when the motor temperature is higher than a threshold, adjusting the power of the water pump and the power of the fan to their respective set maximum values; when the motor temperature is lower than the threshold, executing an adaptive control method for head and heat dissipation, specifically: acquiring the current ambient temperature, the current load current of the power head, and the current height of the power head from the ground, determining the current height difference between the power head and the water pump based on the current height and the height of the water pump from the ground; determining the target head of the water pump based on the current height difference, the local resistance of the coolant in the cooling circuit, and the friction resistance, adjusting the speed of the water pump to adjust the head of the water pump to the target head; determining the target heat dissipation based on the current ambient temperature and the current load current, and adjusting the speed of the fan in the radiator based on the target heat dissipation.

[0059] In this embodiment, the threshold temperature can be 50°C. A temperature sensor is installed on the motor in the power head to monitor the motor temperature in real time. When the motor temperature exceeds 50°C, the system adjusts the power of the water pump and fan to their respective set maximum values, i.e., the water pump and fan operate at full load. The water pump power is adjusted to the maximum to ensure that the coolant circulates at maximum flow rate, quickly reducing the motor temperature; the radiator fan power is adjusted to the maximum to ensure that the radiator dissipates heat at maximum airflow, quickly reducing the motor temperature. Through this emergency handling mechanism, the cooling system can respond quickly when the motor temperature rises abnormally, preventing the motor from being damaged due to overheating. When the motor temperature is below 50°C, the motor temperature is considered to be within the normal range. At this time, the adaptive control method dynamically adjusts the water pump head and radiator fan speed based on parameters such as the current ambient temperature, current load current, and current height difference, ensuring that the cooling system can operate efficiently under different operating conditions, while avoiding insufficient coolant circulation and motor overheating or overcooling.

[0060] Based on the above embodiments, this application embodiment further includes obtaining the coolant level detected by the liquid level sensor in the radiator after the power head stops working; and replenishing the radiator with coolant using the water replenishment pipeline when the coolant level is lower than the preset level.

[0061] In this embodiment, a coolant replenishment mechanism is triggered when the coolant level falls below a preset level. The replenishment pump automatically starts, delivering coolant from the storage tank to the radiator via a replenishment pipeline. After the power unit stops operating, the coolant level is monitored and replenished promptly to prevent cooling failure or motor overheating due to insufficient coolant.

[0062] Figure 2 This is a structural diagram of an adaptive control system for head and heat dissipation provided in an embodiment of this application. Figure 3 This is a structural diagram of another adaptive control system for head and heat dissipation provided in an embodiment of this application. Figure 2The location of the power head 4 in the middle is compared to Figure 3 The position of the power head 4 in the middle should be high, such as Figure 2 and Figure 3 As shown, the adaptive control system for head and heat dissipation includes: radiator 1, water pump 2, height sensor and control module 3; radiator 1 is connected to power head 4 through inlet pipe 5 and return pipe 6, water pump 2 is installed on inlet pipe 5, height sensor is installed on power head 4, height sensor is used to detect the current height of power head 4 above the ground, control module 3 is connected to water pump 2, radiator 1, height sensor and power head 4 respectively, and control module 3 is used to execute the above adaptive control method for head and heat dissipation.

[0063] In this embodiment, the radiator 1 is equipped with a fan 101 for heat dissipation, and is connected to the power head 4 through the water inlet pipe 5 and the water return pipe 6 to ensure that the coolant circulates between the radiator 1 and the power head 4; the water pump 2 is provided on the water inlet pipe 5 to drive the coolant to circulate in the cooling circuit.

[0064] Furthermore, it also includes an auxiliary water tank 7 connected to the radiator 1. The auxiliary water tank 7 is located above the radiator 1, and the volume of the auxiliary water tank 7 is greater than or equal to the sum of the volume of the motor cooling pipe, the volume of the inlet pipe, the volume of the return pipe, and the volume of the coolant expansion of the power head 4. Among them, the coolant expansion volume is 6% of the total volume of the entire cooling circuit; the total volume of the entire cooling circuit includes the volume of the radiator, the volume of the inlet pipe, the volume of the return pipe, and the volume of the motor cooling pipe.

[0065] The primary function of the auxiliary water tank 7 is to compensate for coolant volume changes under different operating conditions. Since the motor cooling pipes, inlet pipe 5, and return pipe 6 of the power head 4 may expand or contract due to temperature changes during operation, resulting in coolant volume changes, the auxiliary water tank 7 ensures the cooling system is always full of coolant by providing coolant, preventing a decrease in cooling effect due to insufficient coolant. When the power head 4 stops working, the coolant flows back into the auxiliary water tank 7, preventing air accumulation in the pipes, reducing cavitation, and extending the service life of system components. Located above the radiator 1, the auxiliary water tank 7 ensures the coolant can smoothly flow back into the radiator 1 through gravity, maintaining stable operation of the cooling system. The volume of the auxiliary water tank 7 should be greater than or equal to the sum of the volumes of the motor cooling pipes, inlet pipe, return pipe, and coolant expansion volume of the power head 4. This design ensures that the auxiliary water tank 7 provides sufficient coolant under any operating condition to compensate for dynamic coolant changes, ensuring the stability and reliability of the cooling system.

[0066] Furthermore, it also includes a water supply pipe 8 connected to the radiator 1, a liquid level sensor located inside the radiator 1, a degassing pipe 9 connected to the auxiliary water tank 7, and a temperature sensor 10 installed on the power head 4.

[0067] The water supply line 8 is typically connected to an external coolant storage tank, and a water supply pump delivers coolant to the radiator 1. When the coolant level sensor detects that the coolant level is lower than a preset value, the water supply pump automatically starts, replenishing coolant to the radiator 1 through the water supply line 8. The water supply line 8 ensures that the coolant level in the radiator 1 is maintained at an appropriate level under any operating condition, preventing a decrease in cooling effect due to insufficient coolant. The coolant level sensor can be a float type, ultrasonic type, or capacitive type, capable of measuring the coolant level. The degassing line 9 is connected to the auxiliary water tank 7 to remove air from the coolant. The degassing line 9 typically includes a degassing device, such as a gas-liquid separator, to separate air from the coolant. Through the degassing line 9, air in the coolant is separated and discharged from the system, reducing cavitation and extending the service life of system components. The temperature sensor 10 is installed in the motor on the power head 4 to monitor the motor temperature in real time. The temperature sensor 10 can be a thermocouple, thermistor, or infrared temperature sensor, etc.

[0068] This application provides an adaptive control system for head and heat dissipation, comprising: a radiator, a water pump, a height sensor, and a control module. The radiator is connected to a power head via an inlet pipe and a return pipe. The water pump is located on the inlet pipe. The height sensor is mounted on the power head and is used to detect the current height of the power head above the ground. The control module is connected to the water pump, radiator, height sensor, and power head, and is used to execute the aforementioned adaptive control method for head and heat dissipation. The system dynamically adjusts the water pump head based on changes in the power head's height and the resistance of the coolant (local resistance and friction resistance) to ensure sufficient pressure and flow rate for coolant circulation, thereby improving cooling efficiency. The system dynamically adjusts the radiator fan speed based on ambient temperature and load current to ensure that the heat dissipation effect meets actual requirements and avoids motor overheating due to insufficient heat dissipation. In summary, the system can dynamically adjust according to the actual working state of the equipment to adapt to different operating conditions; by controlling the speed of the water pump and fan, unnecessary energy consumption is avoided, improving the system's energy efficiency. The design of the auxiliary water tank and the dynamic adjustment mechanism reduce air bubbles in the coolant, prevent cavitation, and extend equipment life.

[0069] This application also provides an adaptive control device for head and heat dissipation, comprising: a memory for storing a computer program; and a processor for executing the computer program to implement the steps of the adaptive control method for head and heat dissipation as described in the above embodiments.

[0070] The adaptive control device for head and heat dissipation provided in this embodiment may include, but is not limited to, smartphones, tablets, laptops, or desktop computers.

[0071] The processor may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor can be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor may also include a main processor and coprocessors. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessors are low-power processors used to process data in the standby state. In some embodiments, the processor may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor may also include an Artificial Intelligence (AI) processor, which handles computational operations related to machine learning.

[0072] The memory may include one or more computer-readable storage media, which may be non-transitory. The memory may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory is used to store at least the following computer program, which, after being loaded and executed by the processor, is capable of implementing the relevant steps of the adaptive control method for head and heat dissipation disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory may also include an operating system and data, and the storage method may be temporary or permanent storage. The operating system may include Windows, Unix, Linux, etc. The data may include, but is not limited to, the current ambient temperature, the current load current of the power head, and the current height of the power head above the ground.

[0073] In some embodiments, the adaptive control device for head and heat dissipation may further include a display screen, an input / output interface, a communication interface, a power supply, and a communication bus.

[0074] The adaptive control device for head and heat dissipation provided in this application includes a memory and a processor. When the processor executes the program stored in the memory, it can implement the following methods: acquiring the current ambient temperature, the current load current of the power head, and the current height of the power head above the ground; determining the current height difference between the power head and the water pump based on the current height and the height of the water pump above the ground; determining the target head of the water pump based on the current height difference, the local resistance of the coolant in the cooling circuit, and the friction resistance; adjusting the speed of the water pump to adjust the head of the water pump to the target head; determining the target heat dissipation based on the current ambient temperature and the current load current; and adjusting the speed of the fan in the radiator based on the target heat dissipation.

[0075] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the adaptive control method for head and heat dissipation of the above method embodiment.

[0076] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0077] The above provides a detailed description of the adaptive control method and adaptive control system for head and heat dissipation provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0078] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An adaptive control method for head and heat dissipation, characterized in that, include: The current ambient temperature, the current load current of the power head, and the current height of the power head above the ground are obtained. The current height difference between the power head and the water pump is determined based on the current height and the height of the water pump above the ground. The target head of the water pump is determined based on the current height difference, the local resistance of the coolant in the cooling circuit, and the friction resistance. The speed of the water pump is adjusted so that the head of the water pump is adjusted to the target head. The target heat dissipation is determined based on the current ambient temperature and the current load current, and the fan speed in the radiator is adjusted according to the target heat dissipation. The target head of the water pump is determined based on the current height difference, the local resistance of the coolant in the cooling circuit, and the friction resistance, including: The target head is calculated according to a preset formula; The preset formula is as follows: ; Determining the target heat dissipation based on the current ambient temperature and the current load current includes: The first preset relationship table is invoked, and the current ambient temperature coefficient corresponding to the current ambient temperature is determined according to the first preset relationship table; wherein, the first preset relationship table includes the correspondence between ambient temperature and ambient temperature coefficient; The second preset relationship table is invoked, and the current load current coefficient corresponding to the current load current is determined according to the second preset relationship table; wherein, the second preset relationship table includes the correspondence between load current and load current coefficient; The target heat dissipation is obtained by multiplying the current ambient temperature coefficient and the current load current coefficient.

2. The adaptive control method for head and heat dissipation according to claim 1, characterized in that, Adjusting the fan speed in the radiator according to the target heat dissipation includes: Determine the actual heat dissipation, calculate the difference between the target heat dissipation and the actual heat dissipation, and obtain the error; The adjustment amount is determined based on the error and the PID algorithm, and the fan speed in the heat sink is adjusted according to the adjustment amount.

3. The adaptive control method for head and heat dissipation according to claim 2, characterized in that, Determine the actual heat dissipation, including: The third preset relationship table is invoked, and the current height difference coefficient corresponding to the current height difference is determined according to the third preset relationship table; wherein, the third preset relationship table includes the correspondence between height difference and height difference coefficient; The actual heat dissipation is obtained by multiplying the current fan speed, the current water pump speed, and the current height difference coefficient in the radiator.

4. The adaptive control method for head and heat dissipation according to claim 1, characterized in that, Also includes: The temperature of the motor in the power head detected by the temperature sensor is obtained; When the motor temperature exceeds the threshold, the power of the water pump and the power of the fan are adjusted to their respective set maximum values; When the motor temperature is lower than the threshold, the adaptive control method for head and heat dissipation as described in claim 1 is executed.

5. The adaptive control method for head and heat dissipation according to claim 1, characterized in that, Also includes: After the power head stops working, the coolant level detected by the liquid level sensor in the radiator is obtained; When the coolant level is lower than the preset level, coolant is added to the radiator using a water replenishment pipe.

6. An adaptive control system for head and heat dissipation, characterized in that, include: Radiator, water pump, height sensor and control module; The radiator is connected to the power head through an inlet pipe and a return pipe. The water pump is located on the inlet pipe. The height sensor is mounted on the power head and is used to detect the current height of the power head above the ground. The control module is connected to the water pump, the radiator, the height sensor, and the power head respectively. The control module is used to execute the adaptive control method for head and heat dissipation as described in any one of claims 1 to 5.

7. The adaptive control system for head and heat dissipation according to claim 6, characterized in that, It also includes an auxiliary water tank connected to the radiator, the auxiliary water tank being located above the radiator, and the volume of the auxiliary water tank being greater than or equal to the sum of the volume of the motor cooling pipe, the volume of the inlet pipe, the volume of the return pipe, and the volume of the coolant expansion of the power head.

8. The adaptive control system for head and heat dissipation according to claim 7, characterized in that, It also includes a water supply pipe connected to the radiator, a liquid level sensor located inside the radiator, a degassing pipe connected to the auxiliary water tank, and a temperature sensor installed on the power head.

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