Heat dissipation control method and device for hybrid cotton picker

Abstract

The present invention discloses a heat dissipation control method and device for a hybrid cotton picker, wherein the heat dissipation control method for the hybrid cotton picker comprises: the vehicle controller obtains the temperature information of the motor controller and the motor. The vehicle controller obtains the inlet temperature and outlet temperature of the coolant of the electronic fan radiator. The vehicle controller obtains the speed feedback of the electronic water pump and the electronic cooling fan. According to the temperature information, the inlet temperature and outlet temperature of the coolant, and the speed feedback, the working state of the electronic water pump and the electronic cooling fan is controlled. Thereby, the heat dissipation control method for the hybrid cotton picker of the present invention can flexibly adjust the working state of the cooling components according to the actual heat dissipation requirements, and effectively balance the heat dissipation effect and energy consumption.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of new energy hybrid power cotton pickers, and in particular to a heat dissipation control method and device for a hybrid cotton picker. Background Art

[0002] In the field of new energy hybrid cotton pickers, with the continuous advancement of technology and the improvement of environmental protection requirements, hybrid cotton pickers have gradually become the mainstream of the market. Hybrid cotton pickers combine the advantages of traditional fuel engines and electric motors, which not only improves cotton picking efficiency, but also reduces fuel consumption and emissions. However, during the operation of hybrid cotton pickers, due to the simultaneous operation of multiple motors, a large amount of heat will be generated, which puts higher requirements on the heat dissipation system of the cotton picker.

[0003] The traditional cotton picker cooling system mainly relies on the energy generated by the engine to drive the cooling fan and the circulating water pump (that is, the heat is dissipated through the mechanical fan on the engine), but this method has obvious disadvantages:

[0004] 1. The cooling system consumes too much energy generated by the engine when working, resulting in increased engine fuel consumption and reduced economic efficiency of the cotton picker;

[0005] 2. The heat dissipation efficiency of the traditional heat dissipation system is limited, and it is difficult to meet the heat dissipation requirements of the hybrid cotton picker under high-intensity work;

[0006] 3. The higher the engine speed, the greater the heat dissipation. Conversely, the lower the speed, the smaller the heat dissipation, which cannot match the actual heat dissipation requirements. Summary of the invention

[0007] The embodiments of the present invention provide a heat dissipation control method and device for a hybrid cotton picker, which effectively solves the heat dissipation problem of the motor and the electronic control system, reduces engine fuel consumption, improves the overall performance and economy of the cotton picker, and effectively balances the heat dissipation effect and energy consumption.

[0008] To achieve the above objectives, in a first aspect, the present invention provides a heat dissipation control method for a hybrid cotton picker, comprising:

[0009] The vehicle controller obtains the temperature information of the motor controller and the motor;

[0010] The vehicle controller obtains the inlet temperature and outlet temperature of the coolant of the electronic fan radiator;

[0011] The vehicle controller obtains speed feedback of the electronic water pump and the electronic cooling fan;

[0012] The working states of the electronic water pump and the electronic cooling fan are controlled according to the temperature information, the inlet temperature and the outlet temperature of the coolant, and the speed feedback.

[0013] In one embodiment of the present invention, the step of obtaining temperature information of the motor controller and the motor includes:

[0014] Get the temperature of the pump group motor controller, left and right baling motor controllers, cotton picking head and fan motor controller, walking main drive motor controller, FISG motor controller and corresponding motors.

[0015] In one embodiment of the present invention, the working state of controlling the electronic water pump and the electronic cooling fan includes:

[0016] When the temperature of the motor controller exceeds a first preset temperature threshold, the electronic water pump is controlled to increase its rotation speed, and part of the electronic cooling fan is controlled to start and increase its rotation speed.

[0017] In one embodiment of the present invention, the working state of controlling the electronic water pump and the electronic cooling fan further includes:

[0018] When the temperature of the motor controller exceeds a second preset temperature threshold, the electronic water pump is further controlled to increase the rotation speed to a maximum value, and all the electronic cooling fans are controlled to turn on and increase the rotation speed.

[0019] In one embodiment of the present invention, controlling the rotation speed of the electronic water pump includes:

[0020] According to the difference between the temperature of the motor controller and a first preset temperature threshold, a target speed of the electronic water pump is determined within a preset first speed range.

[0021] In one embodiment of the present invention, controlling the speed of the electronic cooling fan includes:

[0022] According to the difference between the temperature of the motor controller and a second preset temperature threshold, a target rotation speed of the electronic cooling fan is determined within a preset second rotation speed range.

[0023] In one embodiment of the present invention, the heat dissipation control method of the hybrid cotton picker further includes:

[0024] When the vehicle controller detects that the key is powered off, the electronic water pump and the electronic cooling fan are controlled to delay shutdown, and the delay time is a preset calibration time.

[0025] In the second aspect, the present invention provides a heat dissipation control device for a hybrid cotton picker, comprising: a first acquisition module, a second acquisition module, a third acquisition module and a control module. The first acquisition module is used by the vehicle controller to acquire the temperature information of the motor controller and the motor. The second acquisition module is used by the vehicle controller to acquire the inlet temperature and outlet temperature of the coolant of the electronic fan radiator. The third acquisition module is used by the vehicle controller to acquire the speed feedback of the electronic water pump and the electronic cooling fan. And the control module is used to control the working state of the electronic water pump and the electronic cooling fan according to the temperature information, the inlet temperature and outlet temperature of the coolant and the speed feedback.

[0026] In a third aspect, the present invention provides an electronic device, comprising:

[0027] at least one processor; and

[0028] a memory communicatively coupled to the at least one processor;

[0029] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the heat dissipation control method of the hybrid cotton picker as described above.

[0030] In a fourth aspect, the present invention provides a computer-readable storage medium, including a computer program and instructions, which, when the computer program or the instructions are executed on a computer, enables the computer to execute the heat dissipation control method for the hybrid cotton picker as described above.

[0031] Compared with the prior art, the heat dissipation control method and device of the hybrid cotton picker according to the present invention has the following beneficial effects:

[0032] 1. By real-time monitoring of the temperature of the motor controller and motor, as well as the coolant inlet and outlet temperatures of the electronic fan radiator, the system can accurately determine the cooling demand and adjust the working status and speed of the electronic water pump and cooling fan accordingly; this intelligent cooling management avoids the common problems of over-cooling or under-cooling in traditional cooling systems, thereby improving cooling efficiency;

[0033] 2. Dynamically adjust the working intensity and number of electronic water pumps and cooling fans according to actual heat dissipation needs; when the temperature is low and the heat dissipation demand is not large, the heat is dissipated at a lower speed or with a smaller number of fans, thereby reducing unnecessary energy consumption; this on-demand heat dissipation strategy helps reduce engine fuel consumption and improve the economy of the cotton picker;

[0034] 3. Through precise temperature monitoring and heat dissipation control, the system can ensure that the motor and electronic control system always operate within the appropriate temperature range, avoiding system failure or damage caused by overheating; this helps to improve the overall stability and reliability of the cotton picker and extend the service life of the equipment;

[0035] 4. The vehicle controller HCU is used for centralized control to achieve intelligent management of the cooling system. By collecting and analyzing various temperature data, the HCU can make accurate cooling decisions and automatically adjust the working state of the cooling system; this intelligent control method improves the response speed and accuracy of the cooling system, making the cooling process more efficient and reliable;

[0036] 5. Provides a variety of cooling strategies to adapt to different working environments and cooling requirements; for example, when the temperature is high and the cooling demand is large, the system can start more cooling fans and increase the speed to enhance the cooling effect; this flexible cooling strategy enables the system to better adapt to various complex working environments and ensure the stable operation of the cotton picker. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a flow chart of a heat dissipation control method of a hybrid cotton picker in the first embodiment of the present invention;

[0038] Figure 2 It is a structural schematic diagram of a heat dissipation control device of a hybrid cotton picker in the second embodiment of the present invention;

[0039] Figure 3 It is a structural schematic diagram of a heat dissipation control system of a hybrid cotton picker in a specific embodiment of the present invention;

[0040] Figure 4 It is a structural schematic diagram of an electronic device in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention, rather than to limit the embodiments of the present invention. It is also necessary to explain that, for ease of description, only parts related to the embodiments of the present invention are shown in the accompanying drawings, rather than all structures.

[0042] Embodiment 1

[0043] Figure 1 is a flow chart of a heat dissipation control method for a hybrid cotton picker in the first embodiment of the present invention, such as Figure 1 As shown, the first embodiment provides a heat dissipation control method for a hybrid cotton picker, which is applied to a Figure 3The heat dissipation control system shown, the heat dissipation control method of the hybrid cotton picker includes:

[0044] Step S100, the vehicle controller obtains temperature information of the motor controller and the motor;

[0045] Specifically, the vehicle controller obtains the temperature information of the motor controller and the motor in order to monitor the working status of each motor and its controller in real time. The motor generates heat during operation, and excessive temperature will affect the performance and life of the motor. As the "brain" of the motor, the temperature of the motor controller also reflects the working status of the motor. For example, the vehicle controller detects that the temperature of the pump group motor controller reaches 80°C, while its calibrated temperature is 75°C, indicating that the pump group motor may be abnormal and needs to be cooled down or shut down for maintenance in time. For another example, the vehicle controller finds that the temperature of the cotton picking head motor suddenly rises to 100°C, far exceeding the calibrated 85°C. It can be judged that the cotton picking head motor may be stuck by foreign objects or the load is too large, and it needs to be shut down immediately for investigation. By obtaining the temperature of each motor and controller, the vehicle controller can fully control the status of the vehicle's electrical equipment, timely discover and deal with potential fault hazards, and ensure driving safety. The vehicle controller obtains the inlet and outlet temperatures of the coolant of the electronic fan radiator in order to monitor the working effect of the cooling system. The coolant is driven by the electronic water pump, and heat is exchanged with the air through the radiator to take away the heat of the electronic components. The change in coolant temperature reflects the heat dissipation efficiency of the radiator. Assuming the coolant inlet temperature is 40°C and the outlet temperature is 38°C, it means that the radiator is working properly and can effectively reduce the coolant temperature. If the inlet temperature is 40°C and the outlet temperature rises to 42°C, the radiator is not dissipating heat well. It may be that the cooling fan is not operating normally or the radiator is blocked and scaled. For another example, if the coolant outlet temperature drops sharply to 30°C, while the inlet temperature is still 40°C, it means that the coolant flow may be insufficient and the electronic water pump may fail, resulting in the coolant staying in the radiator for a longer time and excessive heat dissipation. Therefore, by monitoring the coolant inlet and outlet temperatures at the same time, the working status of the cooling system can be evaluated in real time, the working parameters of the electronic water pump and the cooling fan can be adjusted in time, and the coolant temperature and flow can be dynamically controlled to keep the electronic components working in a suitable temperature environment at all times. This is crucial for the reliable operation of the vehicle controller and other electronic components.

[0046] Step S200, the vehicle controller obtains the inlet temperature and outlet temperature of the coolant of the electronic fan radiator;

[0047] Specifically, the vehicle control unit (HCU) monitors the inlet temperature and outlet temperature of the coolant in the electronic fan radiator in real time through a temperature sensor. The inlet temperature reflects the temperature of the coolant before it enters the radiator, that is, the coolant temperature caused by the heat generated by the motor and the electronic control system; while the outlet temperature shows the temperature of the coolant after the coolant is dissipated by the radiator. By comparing these two temperatures, the vehicle control unit can determine the heat dissipation effect of the radiator. If the difference between the inlet temperature and the outlet temperature is not large, it means that the radiator does not dissipate heat well, and it may be necessary to increase the speed of the cooling fan or turn on more cooling fans. On the contrary, if the temperature difference is large, it means that the radiator is working properly and the heat dissipation effect is good. The data in this step provides key information for the vehicle control unit, enabling it to dynamically adjust the working status of the electronic water pump and the cooling fan according to the actual heat dissipation needs, ensuring that the motor and the electronic control system always operate within a suitable temperature range, thereby improving heat dissipation efficiency, reducing energy consumption, and extending the service life of the equipment.

[0048] In a specific embodiment, the vehicle controller (HCU) monitors the inlet temperature and outlet temperature of the coolant in the electronic fan radiator in real time through a temperature sensor. For example, when the coolant flows in from the radiator inlet, the inlet temperature sensor detects that the coolant temperature is 40°C; after the coolant passes through the radiator for heat exchange with the air, the outlet temperature sensor detects that the coolant temperature drops to 38°C. The vehicle controller obtains these two temperature values ​​for subsequent analysis and control of the working status of the electronic water pump and the electronic cooling fan to ensure the efficient operation of the cooling system.

[0049] Step S300, the vehicle controller obtains speed feedback of the electronic water pump and the electronic cooling fan;

[0050] Specifically, the vehicle control unit (HCU) receives the speed information of the electronic water pump and the electronic cooling fan in real time through communication lines or sensors. This speed feedback mechanism enables the vehicle control unit to accurately understand the current working status of the cooling system. Taking the electronic water pump as an example, its speed directly affects the circulation speed of the coolant, which in turn affects the heat dissipation efficiency. If the speed of the electronic water pump is too low, the coolant circulates slowly, which may cause the motor and the electronic control system to overheat; on the contrary, if the speed is too high, although the heat dissipation effect is enhanced, it will also increase energy consumption. Therefore, after the vehicle control unit obtains the speed feedback of the electronic water pump, it can adjust its speed according to actual needs to achieve the best heat dissipation effect and energy consumption balance. Similarly, the speed of the electronic cooling fan also directly affects the heat dissipation effect. In a high temperature environment, or when the temperature of the motor and the electronic control system is high, the vehicle control unit will receive the speed feedback of the electronic cooling fan, and decide whether to increase the fan speed based on this information to speed up the air flow and enhance the heat dissipation effect. For example, if the vehicle control unit detects that the temperature of the motor controller exceeds the preset first temperature threshold, it may decide to increase the water pump speed based on the current speed feedback of the electronic water pump to speed up the coolant circulation. At the same time, it will also choose to turn on some or all of the fans and increase their speed according to the speed feedback of the electronic cooling fans to increase the cooling area and air flow speed, thereby effectively reducing the temperature of the motor and electronic control system. This cooling control method based on speed feedback not only improves the response speed and accuracy of the cooling system, but also makes the cooling process more efficient and reliable. It ensures that the hybrid cotton picker can maintain stable cooling performance in various working environments, thereby extending the service life of the equipment and improving its overall performance.

[0051] Step S400, controlling the working states of the electronic water pump and the electronic cooling fan according to the temperature information, the inlet temperature and the outlet temperature of the coolant, and the speed feedback;

[0052] Specifically, the vehicle controller (HCU) intelligently regulates the working state of the electronic water pump and the electronic cooling fan based on the collected multiple temperature information and speed feedback to ensure that the cotton picker motor and the electronic control system remain within the optimal working temperature range. The vehicle controller obtains the temperature of the motor controller (such as the pump group motor controller, the left and right baling motor controller, etc.) and the corresponding motor in real time. These temperature information reflects the working thermal state of the motor and the electronic control system. At the same time, the vehicle controller also obtains the inlet temperature and outlet temperature of the coolant of the electronic fan radiator. These two temperature values ​​reflect the heat exchange effect of the coolant in the radiator, that is, the heat dissipation capacity of the heat dissipation system. The vehicle controller obtains the current speed feedback of the electronic water pump and the electronic cooling fan. This information is used to evaluate the working state of the current cooling system and whether it needs to be adjusted to better meet the heat dissipation requirements. Based on the temperature information and speed feedback, the vehicle controller formulates a control strategy to adjust the working state of the electronic water pump and the electronic cooling fan. When the temperature of the motor controller exceeds the first preset temperature threshold (such as Ta), the vehicle controller controls the electronic water pump to increase the speed, and starts some electronic cooling fans and increases their speeds to enhance the heat dissipation effect. If the temperature continues to rise and exceeds the second preset temperature threshold (such as Tb, and Tb>Ta), the vehicle controller will further control the electronic water pump to increase the speed to the maximum value, and start all electronic cooling fans, while increasing their speed to maximize the heat dissipation capacity. Assume that at a certain moment, the vehicle controller detects that the temperature of the pump group motor controller has reached 85°C (exceeding the first preset temperature threshold Ta=80°C), and the inlet temperature of the coolant is 45°C and the outlet temperature is 40°C, indicating that the cooling system is working but may not be sufficient to meet the current heat dissipation needs. Based on this information, the vehicle controller will control the electronic water pump to increase the speed, such as from the default 1000 rpm to 1500 rpm, to increase the circulation speed of the coolant. At the same time, the vehicle controller will start two electronic cooling fans (assuming there are four in total) and increase their speed from the default 500 rpm to 1000 rpm to enhance air flow and heat dissipation. If the temperature continues to rise and reaches 95°C (exceeding the second preset temperature threshold Tb=90°C), the vehicle controller will further control the electronic water pump to increase the speed to the maximum value (such as 2000 rpm), and start all four electronic cooling fans, and at the same time increase their speed to the maximum value (such as 1500 rpm) to ensure that the motor and electronic control system will not be damaged due to overheating. Through this intelligent heat dissipation control strategy, the hybrid cotton picker can dynamically adjust the working state of the cooling system according to the actual heat dissipation needs, which not only ensures the heat dissipation effect, but also avoids unnecessary energy waste.

[0053] In this embodiment, obtaining the temperature information of the motor controller and the motor includes:

[0054] Get the temperature of the pump group motor controller, left and right baling motor controllers, cotton picking head and fan motor controller, walking main drive motor controller, FISG motor controller, and corresponding motors;

[0055] Specifically, the vehicle control unit (HCU) collects the operating temperature data of these motor controllers and motors in real time through temperature sensors or communication interfaces. Assuming that the hybrid cotton picker is working in the field, the vehicle control unit starts to execute the heat dissipation control method. First, it obtains the following temperature information through the temperature sensors or communication buses connected to each motor controller: the temperature of the pump group motor controller is 65°C; the temperature of the left baling motor controller is 68°C; the temperature of the right baling motor controller is 67°C; the temperature of the cotton picking head and fan motor controller is 70°C; the temperature of the walking main drive motor controller is 69°C; the temperature of the FISG motor controller is 66°C; at the same time, the temperature of the corresponding motor is also obtained, such as the temperature of the pump group motor is 72°C, the temperature of the left baling motor is 75°C, and so on. After obtaining this temperature information, the vehicle control unit will decide whether to adjust the working status of the electronic water pump and the electronic cooling fan according to the preset temperature threshold and heat dissipation strategy to ensure that the motor and motor controller can work within a safe temperature range to prevent performance degradation or damage caused by overheating. For example, if the temperature of a motor controller exceeds the first preset temperature threshold (such as 75°C), the vehicle controller will control the electronic water pump to increase the speed and turn on some electronic cooling fans to improve the heat dissipation efficiency; if the temperature rises further and exceeds the second preset temperature threshold (such as 80°C), the speed of the electronic water pump will be further increased to the maximum value, and all electronic cooling fans will be turned on to maximize the heat dissipation effect. In this way, the present invention realizes accurate temperature monitoring and intelligent heat dissipation control of the hybrid cotton picker motor and motor controller, thereby improving the overall performance and economy of the cotton picker.

[0056] In this embodiment, the working state of controlling the electronic water pump and the electronic cooling fan includes:

[0057] When the temperature of the motor controller exceeds a first preset temperature threshold, the electronic water pump is controlled to increase its speed, and the electronic cooling fan is controlled to turn on and increase its speed;

[0058] Specifically, when the temperature of the motor controller exceeds this preset threshold (such as 75 degrees Celsius), the vehicle controller will instruct the electronic water pump to increase the speed to increase the circulation speed of the coolant, thereby taking away the heat generated by the motor controller more quickly. At the same time, the system will control some electronic cooling fans to turn on and increase the speed to enhance the heat dissipation effect. For example, if there are only one or two cooling fans running at a low speed, when the temperature exceeds the threshold, the system may start more fans and adjust them to a higher speed to ensure that the motor controller can cool down quickly and avoid performance degradation or damage caused by overheating. This intelligent heat dissipation management strategy not only improves the heat dissipation efficiency, but also helps to extend the service life of the motor controller and improve the overall performance and economy of the hybrid cotton picker.

[0059] In this embodiment, the working state of controlling the electronic water pump and the electronic cooling fan further includes:

[0060] When the temperature of the motor controller exceeds a second preset temperature threshold, the electronic water pump is further controlled to increase the speed to a maximum value, and all the electronic cooling fans are controlled to turn on and increase the speed;

[0061] Specifically, when the temperature of the motor controller exceeds a higher preset temperature threshold (i.e., the second preset temperature threshold), the system takes more active heat dissipation measures. During the operation of the hybrid cotton picker, the motor controller will generate a certain amount of heat due to the task of controlling and regulating the operation of the motor. If this heat cannot be dissipated in time, the temperature of the motor controller will continue to rise, which may have an adverse effect on its performance and life. Therefore, the system needs to monitor the temperature of the motor controller in real time and adjust the working state of the heat dissipation system according to the temperature. When the temperature of the motor controller exceeds the first preset temperature threshold, the system will control the electronic water pump to increase the speed and turn on some electronic cooling fans to improve the heat dissipation efficiency. However, if the temperature of the motor controller continues to rise and exceeds the second preset temperature threshold (this threshold is usually higher than the first preset temperature threshold, indicating that the situation is more urgent), then the system needs to take more active heat dissipation measures to prevent the motor controller from overheating. At this time, the system will further control the electronic water pump to increase the speed to the maximum value to maximize the circulation speed of the coolant, thereby taking away more heat. At the same time, the system will control all electronic cooling fans to turn on and increase the speed to increase the heat dissipation area and heat dissipation efficiency to ensure that the motor controller can cool down quickly. For example, during the operation of the hybrid cotton picker, the temperature of a motor controller gradually rises. When the temperature reaches 75 degrees Celsius (the first preset temperature threshold), the system controls the speed of the electronic water pump to increase and turns on two electronic cooling fans for heat dissipation. However, if the temperature continues to rise and reaches 85 degrees Celsius (the second preset temperature threshold), the system will immediately control the speed of the electronic water pump to increase to the maximum value and turn on all four electronic cooling fans at the same time to maximize the heat dissipation effect and ensure that the motor controller will not be damaged by overheating. Through this hierarchical control strategy, the cooling system of the hybrid cotton picker can flexibly adjust the working state according to the actual situation, which not only ensures the heat dissipation effect, but also avoids unnecessary energy waste.

[0062] In this embodiment, controlling the rotation speed of the electronic water pump includes:

[0063] Determining a target speed of the electronic water pump within a preset first speed range according to a difference between the temperature of the motor controller and a first preset temperature threshold;

[0064] Specifically, in the heat dissipation control process of the hybrid cotton picker, the speed of the electronic water pump is not fixed, but is dynamically adjusted according to the difference between the actual temperature of the motor controller and the preset first temperature threshold. When the temperature of the motor controller exceeds the first preset temperature threshold, it indicates that the motor controller and the motor controlled by it may have generated too much heat and require a stronger heat dissipation effect. At this time, the system calculates the difference between the temperature of the motor controller and the first preset temperature threshold, and selects a suitable target speed within the preset first speed range according to this difference to control the electronic water pump. For example, the first preset temperature threshold is set to 80 degrees Celsius, and the preset first speed range is from 1000 to 3000 revolutions per minute. When the temperature of the motor controller reaches 85 degrees Celsius, it exceeds the first preset temperature threshold by 5 degrees Celsius. Based on the difference of 5 degrees Celsius, the system selects a target speed higher than the base speed (such as 1500 revolutions per minute) within the first speed range, such as 2000 revolutions per minute, to control the operation of the electronic water pump. In this way, the electronic water pump can circulate the coolant at a faster speed, thereby more effectively removing the heat from the motor controller and the motor, reducing their temperature and ensuring that they can operate within a safe temperature range. Conversely, if the temperature of the motor controller gradually decreases to approach or below the first preset temperature threshold, the system will reduce the speed of the electronic water pump accordingly to save energy and reduce unnecessary heat dissipation.

[0065] In this embodiment, controlling the speed of the electronic cooling fan includes:

[0066] Determining a target speed of the electronic cooling fan within a preset second speed range according to a difference between the temperature of the motor controller and a second preset temperature threshold;

[0067] Specifically, when the temperature of the motor controller exceeds a second preset temperature threshold, the system needs to enhance the heat dissipation effect to prevent the motor controller from overheating. At this time, the vehicle controller calculates the difference between the temperature of the motor controller and the second preset temperature threshold. This difference reflects the degree of deviation between the current temperature of the motor controller and the ideal temperature (i.e., the second preset temperature threshold). The larger the difference, the more urgent the heat dissipation demand. Based on this difference, the vehicle controller will determine a target speed for the electronic cooling fan within a preset second speed range. This speed range is set in advance according to the design of the cooling system and the thermal characteristics of the motor, aiming to ensure that under different temperature deviations, the electronic cooling fan can operate at a suitable speed, neither excessive cooling causing energy waste nor insufficient cooling causing overheating of the motor controller. For example, the second preset temperature threshold is 80 degrees Celsius, and when the temperature of the motor controller reaches 85 degrees Celsius, the temperature difference is 5 degrees Celsius. Based on this temperature difference, the vehicle controller may select a moderate speed, such as 1500 rpm, within the second speed range (e.g., 1000 rpm to 3000 rpm) as the target speed of the electronic cooling fan. If the temperature of the motor controller continues to rise to 90 degrees Celsius and the temperature difference increases to 10 degrees Celsius, the vehicle controller may increase the target speed of the electronic cooling fan to 2000 rpm to enhance the cooling effect. In this way, the heat dissipation control method of the hybrid cotton picker can dynamically adjust the speed of the electronic cooling fan according to the actual temperature of the motor controller to achieve precise heat dissipation, which not only ensures the normal working temperature of the motor controller, but also improves the energy efficiency of the entire system.

[0068] In this embodiment, the heat dissipation control method of the hybrid cotton picker further includes:

[0069] When the vehicle controller detects that the key is powered off, the electronic water pump and the electronic cooling fan are controlled to delay shutdown, and the delay time is a preset calibration time;

[0070] Specifically, the function of delayed shutdown is to ensure that the cooling system can continue to operate for a period of time after the cotton picker stops working, so as to help the machine dissipate heat effectively and prevent heat accumulation and potential overheating damage caused by sudden shutdown. For example, after the hybrid cotton picker has been working at high intensity for a period of time, the temperature of the motor and the electronic control system increases significantly. At this time, if the driver directly turns off the key, the traditional cooling system may stop working immediately, resulting in the failure to dissipate heat in time, which may cause damage to the machine. However, in the heat dissipation control method of the present invention, when the key is powered off, the vehicle controller will detect this signal and control the electronic water pump and the electronic cooling fan to continue running for a preset calibration time (such as 30 seconds or 1 minute) to ensure that the heat inside the machine can be fully dissipated. This delayed shutdown strategy not only helps to protect the machine from overheating damage, but also extends the service life of the cotton picker and improves the stability and reliability of the equipment. At the same time, since the electronic water pump and the electronic cooling fan work intelligently and are dynamically adjusted according to the actual heat dissipation needs, this strategy can also effectively avoid unnecessary energy consumption and improve the economy of the cotton picker.

[0071] Figure 3 FIG. 1 is a schematic diagram of a heat dissipation control system of a hybrid cotton picker in a specific embodiment of the present invention. Figure 3 As shown, in a specific embodiment of the present invention, the heat dissipation control system includes: an expansion water tank 1, an electronic water pump 5, a pump group motor controller 10, a left baling motor controller 15, a right baling motor controller 20, an integrated cotton picking head and fan motor controller 25, an integrated walking main drive motor controller 30, a FISG motor controller 35, an upper motor 40, a left baling motor 45, a right baling motor 50, a blower motor 55, a cotton picking head motor 60, a rear main drive motor 65, a front main drive motor 70, a FISG generator 75, a cooling fan 80, a cooling fan 85, a cooling fan 90, a cooling fan 95, an electronic fan radiator 100, and a vehicle controller HCU 101. Among them, the cooling circulation pipeline includes: 2-6-(11, 16, 21, 26, 27, 31, 32, 36)-41-3.

[0072] Among them, the output end of the expansion water tank 1 is connected to one end of the cooling circulation pipeline 2, and the input end of the expansion water tank 1 is connected to one end of the cooling circulation pipeline 3. The input end of the electronic water pump 5 is connected to one end of the heat circulation pipeline 2, and the output end of the electronic water pump 5 is connected to one end of the cooling circulation pipeline 6. The input end of the pump group motor controller 10 is connected to the node 1 of the cooling circulation pipeline 6, and the output end of the pump group motor controller 10 is connected to one end of the cooling circulation pipeline 11. The input end of the upper motor 10 is connected to one end of the cooling circulation pipeline 11, and the output end of the upper motor 10 is connected to the node 1 of the cooling circulation pipeline 41. The input end of the left packaging motor controller 15 is connected to the node 2 of the cooling circulation pipeline 6, and the output end of the left packaging motor controller 15 is connected to one end of the cooling circulation pipeline 16. The input end of the left packaging motor 45 is connected to one end of the cooling circulation pipeline 16, and the output end of the left packaging motor 45 is connected to the node 2 of the cooling circulation pipeline 41. The input end of the right packaging motor controller 20 is connected to the node 3 of the cooling circulation pipeline 6, and the output end of the right packaging motor controller 20 is connected to one end of the cooling circulation pipeline 21. The input end of the right baling motor 50 is connected to one end of the cooling circulation pipeline 21, and the output end of the right baling motor 50 is connected to the node 3 of the cooling circulation pipeline 41. The input end of the integrated cotton picking head and fan motor controller 25 is connected to the node 4 of the cooling circulation pipeline 6, and the two output ends of the integrated cotton picking head and fan motor controller 25 are respectively connected to one end of the cooling circulation pipeline 26 and the cooling circulation pipeline 27. The input end of the blower motor 55 is connected to one end of the cooling circulation pipeline 26, and the output end of the blower motor 55 is connected to the node 4 of the cooling circulation pipeline 41. The input end of the cotton picking head motor 60 is connected to one end of the cooling circulation pipeline 27, and the output end of the cotton picking head motor 60 is connected to the node 5 of the cooling circulation pipeline 41. The input end of the integrated walking main drive motor controller 30 is connected to the node 5 of the cooling circulation pipeline 6, and the two output ends of the integrated walking main drive motor controller 30 are respectively connected to one end of the cooling circulation pipeline 31 and the cooling circulation pipeline 32. The input end of the rear main drive motor controller 65 is connected to one end of the cooling circulation pipeline 31, and the output end of the rear main drive motor controller 65 is connected to the node 6 of the cooling circulation pipeline 41. The input end of the front main drive motor controller 70 is connected to one end of the cooling circulation pipeline 32, and the output end of the front main drive motor controller 70 is connected to the node 7 of the cooling circulation pipeline 41. The input end of the FISG motor controller 35 is connected to the node 6 of the cooling circulation pipeline 6, and the output end of the FISG motor controller 35 is connected to one end of the cooling circulation pipeline 36. The input end of the FISG generator 75 is connected to one end of the cooling circulation pipeline 36, and the output end of the FISG generator 75 is connected to the node 8 of the cooling circulation pipeline 41. The input end of the electronic fan radiator 100 is connected to one end of the cooling circulation pipeline 41, and the output end of the electronic fan radiator 100 is connected to one end of the cooling circulation pipeline 3.Among them, the cooling fan 80, the cooling fan 85, the cooling fan 90, and the cooling fan 95 are mechanically connected to each other and are respectively connected to the vehicle controller HCU through a low-voltage line. The low-voltage line includes a low-voltage hard line and a low-voltage CAN communication line.

[0073] The specific control process of the system is as follows:

[0074] The vehicle controller HCU101 collects the motor controllers and motor temperatures, including the temperature T10 of the pump group motor controller 10, the temperature T15 of the left baling motor controller 15, the temperature T20 of the right baling motor controller 20, the temperature T25 of the integrated cotton picking head and fan motor controller 25, the temperature T30 of the integrated walking main drive motor controller 30, the temperature T35 of the FISG motor controller 35, the temperature T40 of the upper motor 40, the temperature T45 of the left baling motor 45, the temperature T50 of the right baling motor 50, the temperature T55 of the blower motor 55, the temperature T60 of the cotton picking head motor 60, the temperature T65 of the rear main drive motor 65, the temperature T70 of the front main drive motor 70, and the temperature T75 of the FISG generator 75.

[0075] The vehicle controller HCU101 collects the electronic fan radiator coolant inlet temperature T100 and the electronic fan radiator coolant outlet temperature T102.

[0076] The vehicle controller HCU101 collects the feedback speed N of the electronic water pump and the water pump enable, the feedback speed N80 of the electronic cooling fan 80, the feedback speed N85 of the electronic cooling fan 85, the feedback speed N90 of the electronic cooling fan 90, and the feedback speed N95 of the electronic cooling fan 95.

[0077] Step 1: When the vehicle key is powered on at low voltage, the vehicle system control components are powered on at low voltage, and the various control components can communicate normally.

[0078] Step 2: The vehicle system collects fault status information between control components based on the communication information between components. If there is no fault information, the system controls the high-voltage system to power on. If the system triggers the fault level limit, the function of the system control component is restricted, such as prohibiting motor enabling and other operations.

[0079] Step 3, if the power-on is completed normally and the system has no faults, the vehicle controller HCU instructs the electronic water pump to run at a low speed of the default speed Na, the electronic cooling fan 80 to run at the default speed N80a, the electronic cooling fan 85 to run at the default speed N85a, the electronic cooling fan 90 to run at the default speed N90a, and the electronic cooling fan 95 to run at the default speed N95a. The vehicle controller HCU collects various motor controllers, motor temperatures, and electronic fan radiator coolant inlet / outlet temperatures.

[0080] Step 4, the vehicle controller HCU detects the temperature T10 of the pump group motor controller 10, the temperature T15 of the left baling motor controller 15, the temperature T20 of the right baling motor controller 20, the temperature T25 of the integrated cotton picking head and fan motor controller 25, the temperature T30 of the integrated walking main drive motor controller 30, the temperature T35 of the FISG motor controller 35, and the coolant outlet temperature T102 of the electronic fan radiator, and takes the maximum temperature value Amax (T10, T15, T20, T25, T30, T35, T102) and compares it with the calibration temperature Ta. If the maximum temperature value Amax>Ta, then set up the heat dissipation demand flag Ba (Ba=1), until the maximum temperature value Max≤(Ta-Tc)(Tc≤Td<Ta<Tb) and maintain the calibration time Tia, then do not set up the heat dissipation demand flag Ba (Ba=0), if Amax>Ta and the heat dissipation demand flag Ba (Ba=1) has been set for more than the calibration time Tic, then set up the heat dissipation demand flag Bb (Bb=1).

[0081] The vehicle controller HCU detects the temperature T40 of the upper motor 40, the temperature T45 of the left baling motor 45, the temperature T50 of the right baling motor 50, the temperature T55 of the blower motor 55, the temperature T60 of the cotton picking head motor 60, the temperature T65 of the rear main drive motor 65, the temperature T70 of the front main drive motor 70, the temperature T75 of the FISG generator 75, and the coolant inlet temperature T100 of the electronic fan radiator, and takes the maximum temperature value Bmax (T40, T45, T50, T55, T60, T65, T70, T75, T100) and compares it with the calibration temperature Tb (Tb>Ta). If the maximum temperature value Bmax>Tb, a heat dissipation requirement flag Bb (Bb=1) is established until the maximum temperature value Bmax≤(Tb-Td)(Tc≤Td<Ta<Tb) and the calibration time Tib is maintained, then the heat dissipation requirement flag Bb (Bb=0) is not established.

[0082] Step 5, when the vehicle controller HCU detects that the heat dissipation demand flag Ba (Ba = 1) is established and the heat dissipation demand flag Bb (Bb = 0) is not established, the vehicle controller HCU instructs the electronic water pump speed to switch from the speed Na to Nb (Na < Nb) to run, and the positive difference value of (Amax-Ta) corresponds to the electronic water pump execution speed instruction between Nb and Nc. The vehicle controller HCU can choose to start N electronic cooling fans, where N ≤ 4, and the default N = 4, then the electronic cooling fan 80 runs at the default speed N80a, based on (Amax-Ta) The positive difference corresponds to an execution speed instruction between N80a and N80b, the electronic cooling fan 85 runs at the default speed N85a, and the positive difference based on (Amax-Ta) corresponds to an execution speed instruction between N85a and N85b, the electronic cooling fan 90 runs at the default speed N90a, and the positive difference based on (Amax-Ta) corresponds to an execution speed instruction between N90a and N90b, the electronic cooling fan 95 runs at the default speed N95a, and the positive difference based on (Amax-Ta) corresponds to an execution speed instruction between N95a and N95b.

[0083] Step 6, when the vehicle controller HCU detects that the heat dissipation demand flag Ba (Ba = 0) is not set, and the heat dissipation demand flag Bb (Bb = 1) is set, the vehicle controller HCU instructs the electronic water pump to maintain the speed Nb operation, and the positive difference value based on (Amax-Ta) corresponds to the electronic water pump execution speed instruction between Nb and Nc. The vehicle controller HCU can choose to start N electronic cooling fans, where N≤4, and the default N=4, then the electronic cooling fan 80 switches from speed N80a to N80b (N80a < N80b) to run, and the positive difference value based on (Bmax-Tb) corresponds to the execution speed instruction between N80b and N80c The electronic cooling fan 85 switches from speed N85a to N85b (N85a<N85b) for operation, and the positive difference value based on (Bmax-Tb) corresponds to the execution speed instruction between N85b and N85c, the electronic cooling fan 90 switches from speed N90a to N90b (N90a<N90b) for operation, and the positive difference value based on (Bmax-Tb) corresponds to the execution speed instruction between N90b and N90c, the electronic cooling fan 95 switches from speed N95a to N95b (N95a<N95b) for operation, and the positive difference value based on (Bmax-Tb) corresponds to the execution speed instruction between N95b and N95c.

[0084] Step 7, when the vehicle controller HCU detects that the heat dissipation demand flag Ba (Ba=1) is set, and the heat dissipation demand flag Bb (Bb=1) is set, the vehicle controller HCU instructs the electronic water pump to switch from the speed Nb to Nc (Nb<Nc) to run, and the positive difference value based on (Amax-Ta) corresponds to the electronic water pump execution speed instruction between Nc and Nmax (Na<Nb<Nc<Nmax), and the vehicle controller HCU can choose to start N electronic cooling fans to run, where N≤4, and the default N=4, then the electronic cooling fan 80 switches from the speed N80b to N80c (N80b<N80c) to run, and the positive difference value based on (Bmax-Tb) corresponds to the execution speed instruction between N80c and N80max (N80a<N80b<N80c<N80max), and the electronic cooling fan 85 The speed is switched from N85b to N85c (N85b<N85c) for operation, and the positive difference based on (Bmax-Tb) corresponds to the execution speed instruction between N85c and N85max (N85a<N85b<N85c<N85max); the electronic cooling fan 90 is switched from N90b to N90c (N90b<N90c) for operation, and the positive difference based on (Bmax-Tb) corresponds to the execution speed instruction between N90c and N90max (N90a<N90b<N90c<N90max); the electronic cooling fan 95 is switched from N95b to N95c (N95b<N95c) for operation, and the positive difference based on (Bmax-Tb) corresponds to the execution speed instruction between N95c and N95max (N95a<N95b<N95c<N95max).

[0085] Step 8: If the vehicle controller HCU detects that the driver's key is powered off, the system triggers the cooling system delay processing, and the electronic water pump and cooling fan maintain the previous state for a calibrated time Td before shutting down, and the vehicle controller HCU system enters a dormant state.

[0086]

[0087] Embodiment 2

[0088] Figure 2 FIG. 1 is a schematic diagram of the structure of a heat dissipation control device for a hybrid cotton picker in Embodiment 2 of the present invention. Figure 2 As shown, the second embodiment provides a heat dissipation control device for a hybrid cotton picker, which is applied to a Figure 3The heat dissipation control system shown, the heat dissipation control device of the hybrid cotton picker includes: a first acquisition module 201, a second acquisition module 202, a third acquisition module 203 and a control module 204. The first acquisition module 201 is used by the vehicle controller to obtain the temperature information of the motor controller and the motor. The second acquisition module 202 is used by the vehicle controller to obtain the inlet temperature and outlet temperature of the coolant of the electronic fan radiator. The third acquisition module 203 is used by the vehicle controller to obtain the speed feedback of the electronic water pump and the electronic cooling fan. And the control module 204 is used to control the working state of the electronic water pump and the electronic cooling fan according to the temperature information, the inlet temperature and outlet temperature of the coolant and the speed feedback.

[0089] In this embodiment, obtaining the temperature information of the motor controller and the motor includes:

[0090] Get the temperature of the pump group motor controller, left and right baling motor controllers, cotton picking head and fan motor controller, walking main drive motor controller, FISG motor controller and corresponding motors.

[0091] In this embodiment, the working state of controlling the electronic water pump and the electronic cooling fan includes:

[0092] When the temperature of the motor controller exceeds a first preset temperature threshold, the electronic water pump is controlled to increase its rotation speed, and part of the electronic cooling fan is controlled to start and increase its rotation speed.

[0093] In this embodiment, the working state of controlling the electronic water pump and the electronic cooling fan further includes:

[0094] When the temperature of the motor controller exceeds a second preset temperature threshold, the electronic water pump is further controlled to increase the rotation speed to a maximum value, and all the electronic cooling fans are controlled to turn on and increase the rotation speed.

[0095] In this embodiment, controlling the rotation speed of the electronic water pump includes:

[0096] According to the difference between the temperature of the motor controller and a first preset temperature threshold, a target speed of the electronic water pump is determined within a preset first speed range.

[0097] In this embodiment, controlling the speed of the electronic cooling fan includes:

[0098] According to the difference between the temperature of the motor controller and a second preset temperature threshold, a target rotation speed of the electronic cooling fan is determined within a preset second rotation speed range.

[0099] In this embodiment, the heat dissipation control method of the hybrid cotton picker further includes:

[0100] When the vehicle controller detects that the key is powered off, the electronic water pump and the electronic cooling fan are controlled to delay shutdown, and the delay time is a preset calibration time.

[0101] The various variations and specific examples of the heat dissipation control method for a hybrid cotton picker provided in Example 1 are also applicable to the heat dissipation control device for a hybrid cotton picker provided in this example. Through the above detailed description of the heat dissipation control method for a hybrid cotton picker, those skilled in the art can clearly know the implementation method of the heat dissipation control device for a hybrid cotton picker in this example. Therefore, for the sake of brevity of the specification, it will not be described in detail here.

[0102] Embodiment 3

[0103] Figure 4 is a schematic diagram of the structure of an electronic device in Embodiment 3 of the present invention, such as Figure 4 As shown, the third embodiment further provides an electronic device 400 , which may include: a processor 401 and a memory 402 .

[0104] The memory 402 is used to store programs; the memory 402 may include volatile memory (English: volatile memory), such as random-access memory (English: random-access memory, abbreviated: RAM), such as static random-access memory (English: static random-access memory, abbreviated: SRAM), double data rate synchronous dynamic random access memory (English: Double Data Rate Synchronous Dynamic Random Access Memory, abbreviated: DDR SDRAM), etc.; the memory may also include non-volatile memory (English: non-volatile memory), such as flash memory (English: flash memory). The memory 402 is used to store computer programs (such as applications, functional modules, etc. that implement the above method), computer instructions, etc., and the above computer programs, computer instructions, etc. can be partitioned and stored in one or more memories 402. And the above computer programs, computer instructions, data, etc. can be called by the processor 401.

[0105] The above-mentioned computer programs, computer instructions, etc. may be stored in one or more memories 402 in partitions. And the above-mentioned computer programs, computer instructions, etc. may be called by the processor 401.

[0106] The processor 401 is used to execute the computer program stored in the memory 402 to implement each step of the method involved in the above embodiment.

[0107] For details, please refer to the relevant description in the previous method embodiment.

[0108] The processor 401 and the memory 402 may be independent structures or integrated structures. When the processor 401 and the memory 402 are independent structures, the memory 402 and the processor 401 may be coupled and connected via a bus 403 .

[0109] The electronic device of this embodiment can execute the technical solution in the above method, and its specific implementation process and technical principle are the same, which will not be repeated here.

[0110] Embodiment 4

[0111] Embodiment 4 also provides a computer-readable storage medium, including a computer program and instructions. When the computer program or instructions are executed on a computer, the computer executes the subtropical high pressure identification method based on satellite and numerical model data of any embodiment of the present invention.

[0112] Computer-readable storage media include: USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks, and other media that can store program codes.

[0113] This embodiment also provides a computer program product, which includes: a computer program, which is stored in a readable storage medium. At least one processor of an electronic device can read the computer program from the readable storage medium, and at least one processor executes the computer program so that the electronic device executes the solution provided by any of the above embodiments.

[0114] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the disclosure of the present invention can be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in the present invention can be achieved, and this document does not limit this.

[0115] In summary, the heat dissipation control method and device of the hybrid cotton picker of the present invention have the following beneficial effects:

[0116] 1. By real-time monitoring of the temperature of the motor controller and motor, as well as the coolant inlet and outlet temperatures of the electronic fan radiator, the system can accurately determine the cooling demand and adjust the working status and speed of the electronic water pump and cooling fan accordingly; this intelligent cooling management avoids the common problems of over-cooling or under-cooling in traditional cooling systems, thereby improving cooling efficiency;

[0117] 2. Dynamically adjust the working intensity and number of electronic water pumps and cooling fans according to actual heat dissipation needs; when the temperature is low and the heat dissipation demand is not large, the heat is dissipated at a lower speed or with a smaller number of fans, thereby reducing unnecessary energy consumption; this on-demand heat dissipation strategy helps reduce engine fuel consumption and improve the economy of the cotton picker;

[0118] 3. Through precise temperature monitoring and heat dissipation control, the system can ensure that the motor and electronic control system always operate within the appropriate temperature range, avoiding system failure or damage caused by overheating; this helps to improve the overall stability and reliability of the cotton picker and extend the service life of the equipment;

[0119] 4. The vehicle controller HCU is used for centralized control to achieve intelligent management of the cooling system. By collecting and analyzing various temperature data, the HCU can make accurate cooling decisions and automatically adjust the working state of the cooling system; this intelligent control method improves the response speed and accuracy of the cooling system, making the cooling process more efficient and reliable;

[0120] 5. Provides a variety of cooling strategies to adapt to different working environments and cooling requirements; for example, when the temperature is high and the cooling demand is large, the system can start more cooling fans and increase the speed to enhance the cooling effect; this flexible cooling strategy enables the system to better adapt to various complex working environments and ensure the stable operation of the cotton picker.

[0121] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A heat dissipation control method for a hybrid cotton picker, characterized in that: include: The vehicle controller obtains the temperature information of the motor controller and the motor; The vehicle controller obtains the inlet temperature and outlet temperature of the coolant of the electronic fan radiator; The vehicle controller obtains speed feedback of the electronic water pump and the electronic cooling fan; The working states of the electronic water pump and the electronic cooling fan are controlled according to the temperature information, the inlet temperature and the outlet temperature of the coolant, and the speed feedback.

2. The heat dissipation control method of the hybrid cotton picker according to claim 1, characterized in that: The step of obtaining the temperature information of the motor controller and the motor includes: Get the temperature of the pump group motor controller, left and right baling motor controllers, cotton picking head and fan motor controller, walking main drive motor controller, FISG motor controller and corresponding motors.

3. The heat dissipation control method of the hybrid cotton picker according to claim 1, characterized in that: The working state of controlling the electronic water pump and the electronic cooling fan includes: When the temperature of the motor controller exceeds a first preset temperature threshold, the electronic water pump is controlled to increase its rotation speed, and part of the electronic cooling fan is controlled to start and increase its rotation speed.

4. The heat dissipation control method of the hybrid cotton picker according to claim 3, characterized in that: The working state of controlling the electronic water pump and the electronic cooling fan also includes: When the temperature of the motor controller exceeds a second preset temperature threshold, the electronic water pump is further controlled to increase the rotation speed to a maximum value, and all the electronic cooling fans are controlled to turn on and increase the rotation speed.

5. The heat dissipation control method of the hybrid cotton picker according to claim 3, characterized in that: Controlling the rotation speed of the electronic water pump comprises: According to the difference between the temperature of the motor controller and a first preset temperature threshold, a target speed of the electronic water pump is determined within a preset first speed range.

6. The heat dissipation control method of the hybrid cotton picker according to claim 4, characterized in that: Controlling the speed of the electronic cooling fan includes: According to the difference between the temperature of the motor controller and a second preset temperature threshold, a target rotation speed of the electronic cooling fan is determined within a preset second rotation speed range.

7. The heat dissipation control method of a hybrid cotton picker according to claim 1, characterized in that: Also includes: When the vehicle controller detects that the key is powered off, the electronic water pump and the electronic cooling fan are controlled to delay shutdown, and the delay time is a preset calibration time.

8. A heat dissipation control device for a hybrid cotton picker, characterized in that: include: The first acquisition module is used for the vehicle controller to acquire the temperature information of the motor controller and the motor; A second acquisition module, used for the vehicle controller to acquire the inlet temperature and outlet temperature of the coolant of the electronic fan radiator; A third acquisition module is used for the vehicle controller to obtain speed feedback of the electronic water pump and the electronic cooling fan; as well as A control module is used to control the working states of the electronic water pump and the electronic cooling fan according to the temperature information, the inlet temperature and outlet temperature of the coolant and the speed feedback.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively coupled to the at least one processor; Wherein, the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the heat dissipation control method of the hybrid cotton picker described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: It includes computer programs and instructions. When the computer program or the instructions are run on a computer, the computer executes the heat dissipation control method for the hybrid cotton picker as described in any one of claims 1-7.

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