Thermal management method and equipment of methanol fuel power system, ship and storage medium

Abstract

The invention discloses a thermal management method and device of a methanol fuel power system, a ship and a storage medium, and relates to the technical field of ships. The method specifically comprises the steps that the first engine water temperature and the first engine air inlet temperature of the methanol fuel power system are obtained; a target heat management strategy is determined based on the first engine water temperature and the first engine air inlet temperature, and the target heat management strategy is a cooling strategy or a heating strategy; and determining a first target water pump rotating speed in combination with the target heat management strategy, and adjusting the current electronic water pump rotating speed of the methanol fuel power system to the first target water pump rotating speed. By the adoption of the method, the electronic equipment can adjust the seawater flow of the cooling loop in the methanol fuel power system, then the engine is prevented from entering the supercooled state or the superheated state by changing the seawater flow, and the safety of the engine is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of marine technology, and in particular to a thermal management method for a methanol fuel power system, electronic equipment, a ship, and a storage medium. Background Technology

[0002] With the continuous development of shipping technology, the shipping industry has become an important sector supporting economic development. Meanwhile, methanol fuel, due to its environmental and economic advantages, is gradually being used more widely in the field of ship propulsion.

[0003] In related technologies, although some ships use methanol fuel as power, their thermal management systems still follow the design method of traditional diesel engines. That is, they use belt or gear transmission to drive seawater pumps, thereby introducing seawater into the intercooler to cool the intake air temperature after pressurization, and at the same time introducing seawater into the radiator to cool the engine coolant.

[0004] However, since the seawater pump in the thermal management system of the existing technology adopts a mechanical transmission method, the seawater flow rate in the cooling circuit will remain unchanged when the engine's heat dissipation demand decreases or increases, which will cause the engine to enter an overcooled or overheated state, thus leading to a high safety risk to the engine. Summary of the Invention

[0005] The main objective of this application is to provide a thermal management method, electronic equipment, ship, and storage medium for a methanol fuel power system, aiming to solve the technical problem in the related art where the inability of the thermal management system to adjust the seawater flow causes the methanol engine to easily enter an overcooled or overheated state.

[0006] To achieve the above objectives, this application proposes a thermal management method for a methanol fuel power system, which is applied to a ship containing a methanol fuel power system. The method includes: Obtain the first engine water temperature and the first engine intake air temperature of the methanol fuel power system; A target thermal management strategy is determined based on the first engine water temperature and the first engine intake air temperature, wherein the target thermal management strategy is a cooling strategy or a heating strategy. The first target water pump speed is determined based on the target thermal management strategy, and the current electronic water pump speed of the methanol fuel power system is adjusted to the first target water pump speed.

[0007] In one embodiment, the step of determining the target thermal management strategy based on the first engine coolant temperature and the first engine intake air temperature includes: If the first engine coolant temperature is detected to be greater than a preset first coolant temperature threshold, and / or the first engine intake air temperature is greater than a preset first intake air temperature threshold, the target thermal management strategy is determined to be a cooling strategy. or, If the first engine coolant temperature is detected to be lower than a preset second coolant temperature threshold and the first engine intake air temperature is detected to be lower than a preset second intake air temperature threshold, the target thermal management strategy is determined to be a heating strategy, wherein the second coolant temperature threshold is lower than the first coolant temperature threshold and the second intake air temperature threshold is lower than the first intake air temperature threshold.

[0008] In one embodiment, the step of determining the first target pump speed in conjunction with the target thermal management strategy includes: If the target thermal management strategy is detected to be the cooling strategy, the preset first water pump speed is determined as the first target water pump speed. or, When the target thermal management strategy is detected to be the heating strategy, the preset second water pump speed is determined as the first target water pump speed, wherein the second water pump speed is less than the first water pump speed.

[0009] In one embodiment, the methanol fuel power system includes an engine, a first throttle valve, a second throttle valve, a radiator, an intercooler, and an electric water pump. The electric water pump is connected to the radiator through the first throttle valve and to the intercooler through the second throttle valve. The engine is connected to the radiator and the intercooler, respectively. After the step of determining the target thermal management strategy based on the first engine coolant temperature and the first engine intake air temperature, the method further includes: When the target thermal management strategy is detected to be the cooling strategy, the target throttle valve is determined by combining the first engine water temperature and the first engine intake air temperature, wherein the target throttle valve is the first throttle valve or the second throttle valve; Obtain the preset first throttle valve opening, adjust the target throttle valve to the first throttle valve opening, and execute the step of determining the first target water pump speed in conjunction with the target thermal management strategy.

[0010] In one embodiment, the step of determining the target throttle valve based on the first engine coolant temperature and the first engine intake air temperature includes: If the engine coolant temperature is detected to be within the standard coolant temperature range and the engine intake air temperature is greater than the first intake air temperature threshold, the first throttle valve is determined to be the target throttle valve, wherein the maximum value of the standard coolant temperature range is the first coolant temperature threshold and the minimum value of the standard coolant temperature range is the second coolant temperature threshold. or, If the engine coolant temperature is detected to be greater than the first coolant temperature threshold and the engine intake air temperature is within the standard intake air temperature range, the second throttle valve is determined to be the target throttle valve, wherein the maximum value of the standard intake air temperature range is the first intake air temperature threshold and the minimum value of the standard intake air temperature range is the second intake air temperature threshold.

[0011] In one embodiment, after the step of obtaining the first engine coolant temperature and the first engine intake air temperature of the methanol fuel power system, the method further includes: If the first engine coolant temperature is detected to be lower than the second coolant temperature threshold and the first engine intake air temperature is within the standard intake air temperature range, the first throttle valve is determined to be the target throttle valve. Adjust the target throttle valve to the second throttle valve opening, and obtain the second engine water temperature of the methanol fuel power system; The target water pump adjustment strategy is determined based on the second engine water temperature, wherein the target water pump adjustment strategy is a speed reduction strategy or a speed constant strategy. If the target water pump adjustment strategy is detected to be the speed reduction strategy, the second target water pump speed is determined in combination with the second engine water temperature; Adjust the current electronic water pump speed to the second target water pump speed.

[0012] In one embodiment, after the step of obtaining the first engine coolant temperature and the first engine intake air temperature of the methanol fuel power system, the method further includes: If the first engine coolant temperature is detected to be within the standard coolant temperature range and the first engine intake air temperature is less than the second intake air temperature threshold, the second throttle valve is determined to be the target throttle valve. Adjust the target throttle valve to the third throttle valve opening and obtain the second engine intake temperature of the methanol fuel power system; The target water pump adjustment strategy is determined based on the intake air temperature of the second engine. If the target water pump adjustment strategy is detected to be the speed reduction strategy, the third target water pump speed is determined in combination with the second engine intake air temperature. Adjust the current electronic water pump speed to the third target water pump speed.

[0013] In addition, to achieve the above objectives, this application also proposes an electronic device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the thermal management method for a methanol fuel power system as described above.

[0014] In addition, to achieve the above objectives, this application also proposes a vessel that includes a methanol fuel power system and electronic equipment as described above.

[0015] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the thermal management method for the methanol fuel power system as described above.

[0016] The thermal management method for a methanol fuel power system provided in this application is applied to a ship containing a methanol fuel power system. It involves acquiring the first engine water temperature and the first engine intake air temperature of the methanol fuel power system; determining a target thermal management strategy based on the first engine water temperature and the first engine intake air temperature, wherein the target thermal management strategy is a cooling strategy or a heating strategy; determining a first target water pump speed in conjunction with the target thermal management strategy; and adjusting the current electronic water pump speed of the methanol fuel power system to the first target water pump speed.

[0017] In this embodiment, when the electronic device is running, it first detects the methanol fuel power system in the ship to obtain the first engine water temperature and the first engine intake air temperature of the methanol fuel power system. Then, the electronic device detects the first engine water temperature and the first engine intake air temperature to determine whether the target electronic device should adopt a cooling strategy or a heating strategy. Finally, the electronic device selects the first target water pump speed that matches the target thermal management strategy and adjusts the current electronic water pump speed of the electronic water pump in the methanol fuel power system from the preset initial electronic water pump speed to the first target water pump speed.

[0018] Thus, this application solves the technical problem in related technologies where the inability of the thermal management system to adjust seawater flow causes methanol engines to easily enter an overcooled or overheated state. Specifically, this application uses the detection of engine coolant temperature and engine intake air temperature in the methanol fuel power system, combined with these temperatures, to determine the required thermal management strategy. This determines the target electronic water pump speed that matches the thermal management strategy, and adjusts the speed of the electronic water pump in the methanol fuel power system to the target speed. This allows the electronic equipment to adjust the seawater flow in the cooling circuit of the methanol fuel power system, thereby preventing the engine from entering an overcooled or overheated state by changing the seawater flow, significantly improving engine safety. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a methanol fuel power system according to an embodiment of the thermal management method of the methanol fuel power system of this application.

[0022] Figure 2 This is a flowchart illustrating an embodiment of the thermal management method for a methanol fuel power system according to this application.

[0023] Figure 3 This is a schematic diagram of the module structure of the thermal management device of the methanol fuel power system according to an embodiment of this application.

[0024] Figure 4 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the thermal management method of the methanol fuel power system in the embodiments of this application.

[0025] The following are the reference numerals: 1. Intercooler; 2. Ball valve; 3. Water tank; 4. Electric water pump; 5. Second throttle valve; 6. First throttle valve; 7. Water tank; 8. Engine controller; 9. Radiator; 10. Intake air temperature sensor; 11. Water temperature sensor; 12. Air filter; 13. Engine; 14. Turbocharger.

[0026] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0028] To better understand the technical solutions of the present application, the following will be described in detail in conjunction with the drawings of the specification and specific embodiments.

[0029] In this embodiment, for the convenience of description, the following will be described with the electronic devices configured in the ship, or mobile terminals, data storage control terminals, PCs and other terminals connected to the electronic control unit supporting the electronic devices as the execution entities. It can be understood that, please refer to Figure 1 , Figure 1 is a schematic structural diagram of a methanol fuel power system related to an embodiment of the thermal management method of the methanol fuel power system of the present application. As Figure 1 shown, the electronic device may specifically be an engine controller 8 configured in the methanol fuel power system.

[0030] Based on the above-mentioned electronic device, the overall concept of the thermal management method of the methanol fuel power system of the present application is proposed herein.

[0031] With the continuous development of shipping technology, the shipping industry has become an important industry supporting economic development. At the same time, due to the advantages of environmental protection and economy, methanol fuel has been gradually popularized in the field of ship power. In the related art, although some ships use methanol fuel as power, the thermal management systems supporting them still follow the design methods of traditional diesel engines, that is, a seawater pump is driven by a belt or gear drive to introduce seawater into the intercooler to cool the intake air temperature after supercharging, and at the same time, seawater is introduced into the radiator to cool the engine cooling water. However, since the seawater pump in the thermal management system in the prior art uses a mechanical drive method, when the engine cooling demand decreases or increases, the seawater flow rate in the cooling circuit will still remain unchanged, resulting in the engine entering an overcooled state or an overheated state, and thus there is a high safety risk for the engine.

[0032] In view of the above phenomenon, the present application provides a thermal management method for a methanol fuel power system. The thermal management method for the methanol fuel power system is applied to a ship including a methanol fuel power system. The method includes: obtaining the first engine water temperature and the first engine intake air temperature of the methanol fuel power system; determining a target thermal management strategy based on the first engine water temperature and the first engine intake air temperature, where the target thermal management strategy is a cooling strategy or a heating strategy; determining a first target water pump speed in combination with the target thermal management strategy, and adjusting the current electronic water pump speed of the methanol fuel power system to the first target water pump speed.

[0033] Thus, this application solves the technical problem in related technologies where the inability of the thermal management system to adjust seawater flow causes methanol engines to easily enter an overcooled or overheated state. Specifically, this application uses the detection of engine coolant temperature and engine intake air temperature in the methanol fuel power system, combined with these temperatures, to determine the required thermal management strategy. This determines the target electronic water pump speed that matches the thermal management strategy, and adjusts the speed of the electronic water pump in the methanol fuel power system to the target speed. This allows the electronic equipment to adjust the seawater flow in the cooling circuit of the methanol fuel power system, thereby preventing the engine from entering an overcooled or overheated state by changing the seawater flow, significantly improving engine safety.

[0034] Based on the overall concept of the thermal management method for a methanol fuel power system in this application, the embodiments of this application provide a thermal management method for a methanol fuel power system, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the thermal management method for a methanol fuel power system according to this application. In this embodiment, the thermal management method for the methanol fuel power system includes steps S10 to S30: Step S10: Obtain the first engine coolant temperature and the first engine intake air temperature of the methanol fuel power system; Step S20: Determine the target thermal management strategy based on the first engine water temperature and the first engine intake air temperature, wherein the target thermal management strategy is a cooling strategy or a heating strategy; It should be noted that the first engine coolant temperature is a quantitative data representing the real-time temperature of the engine coolant in the methanol fuel power system within the ship. Similarly, the first engine intake air temperature is a quantitative data representing the real-time temperature of the engine intake air in the methanol fuel power system after cooling by the intercooler. Furthermore, this cooling strategy is an operational plan designed to address excessively high first engine coolant temperature and / or excessively high first engine intake air temperature. Its core is to reduce the engine coolant temperature and / or engine intake air temperature by improving the heat dissipation capacity of the methanol fuel power system. Similarly, the heating strategy is an operational plan designed to address excessively low first engine coolant temperature and excessively low first engine intake air temperature. Its core is to increase the engine coolant temperature and engine intake air temperature by reducing the heat dissipation capacity of the methanol fuel power system.

[0035] In this embodiment, during the ship's operation, the electronic equipment installed on the ship first detects the methanol fuel power system on the ship, thereby collecting the first engine water temperature and the first engine intake air temperature through the various sensors installed on the methanol fuel power system. Then, the electronic equipment processes the first engine water temperature and the first engine intake air temperature, thereby determining the target thermal management strategy to be adopted based on the first engine water temperature and the first engine intake air temperature. The target thermal management strategy is either a cooling strategy to reduce the first engine water temperature and / or the first engine intake air temperature, or a heating strategy to increase the first engine water temperature and the first engine intake air temperature.

[0036] For example, such as Figure 2 As shown, during the ship's operation, the engine controller 8 installed on the ship first establishes a signal connection with the water temperature sensor 11 and the intake air temperature sensor 10 installed in the methanol fuel power system on the ship. Thus, the water temperature sensor 11 collects the first engine water temperature of the engine 13 in the methanol fuel power system, and at the same time, the intake air temperature sensor 10 collects the first engine intake air temperature of the engine 13. Then, the engine controller 8 compares the collected first engine water temperature with the preset first water temperature threshold and the second water temperature threshold, respectively. At the same time, it compares the first engine intake air temperature with the preset first intake air temperature threshold and the second intake air temperature threshold, respectively. Thus, it determines whether the target thermal management strategy to be adopted is a cooling strategy to cool down the engine water temperature and / or the engine intake air temperature, or a heating strategy to heat up the engine water temperature and the engine intake air temperature.

[0037] In this way, by collecting engine coolant temperature and engine intake air temperature, and combining the engine coolant temperature and engine intake air temperature to determine whether to adopt a cooling strategy or a heating strategy, the electronic equipment can identify whether the engine is in an overcooled / overheated state, and thus accurately identify the target thermal management strategy to be adopted. This ensures that the thermal management strategy can be adapted to the engine's thermal management state, significantly improving the adjustment accuracy of the thermal management system.

[0038] In one feasible implementation, step S20 above may specifically include steps S201 to S202: Step S201: If the first engine coolant temperature is detected to be greater than a preset first coolant temperature threshold, and / or the first engine intake air temperature is greater than a preset first intake air temperature threshold, the target thermal management strategy is determined to be a cooling strategy. or, Step S202: If the first engine coolant temperature is detected to be lower than a preset second coolant temperature threshold and the first engine intake air temperature is detected to be lower than a preset second intake air temperature threshold, the target thermal management strategy is determined to be a heating strategy, wherein the second coolant temperature threshold is lower than the first coolant temperature threshold and the second intake air temperature threshold is lower than the first intake air temperature threshold.

[0039] It should be noted that the first water temperature threshold is the highest permissible target value of engine water temperature in a methanol fuel power system, that is, the critical temperature value used to determine whether the engine needs to be cooled down. It is understood that the specific value of the first water temperature threshold can be set by technicians based on the requirements of methanol engine overheating prevention and anti-knock. This application does not impose any restrictions on this. Similarly, the second water temperature threshold is the lowest permissible target value of engine water temperature in a methanol fuel power system, that is, the critical temperature value used to determine whether the engine needs to be heated up. It is understood that the specific value of the second water temperature threshold can be set by technicians based on the requirements of methanol engine overcooling prevention and anti-oil emulsification. This application also does not impose any restrictions on this. Furthermore, the first intake air temperature threshold is the highest permissible target value of the engine intake air after cooling by the intercooler, that is, the critical temperature value used to determine whether the intake air temperature needs to be reduced. It is understood that the specific value of the first intake air temperature threshold can be set by technicians based on the requirements of methanol engine overheating prevention and anti-knock. This application does not impose any restrictions on this. Similarly, the second intake air temperature threshold is the lowest permissible target value of the engine intake air after cooling by the intercooler, that is, the critical temperature value used to determine whether the intake air temperature needs to be increased. It is understood that the specific value of the second intake air temperature threshold can be set by technicians based on the requirements of methanol engine overcooling prevention and anti-oil emulsification. This application does not impose any restrictions on this.

[0040] In this embodiment, after acquiring the first engine coolant temperature and the first engine intake air temperature of the methanol fuel power system, the electronic device further reads its configured storage module to obtain a preset first coolant temperature threshold and a second coolant temperature threshold that is lower than the first coolant temperature threshold. Simultaneously, it acquires a preset first intake air temperature threshold and a second intake air temperature threshold that is lower than the first intake air temperature threshold. At this point, the electronic device compares the first engine coolant temperature with the first and second coolant temperature thresholds, and compares the first engine intake air temperature with the first and second intake air temperature thresholds. If the electronic device detects that the first engine coolant temperature is higher than the first coolant temperature threshold and / or the first engine intake air temperature is higher than the first intake air temperature threshold, it directly determines that the engine is overheating and determines that the target thermal management strategy to be adopted is a cooling strategy. Similarly, if the electronic device detects that the first engine coolant temperature is lower than the second coolant temperature threshold and the first engine intake air temperature is lower than the second intake air temperature threshold, it directly determines that the engine is undercooling and determines that the target thermal management strategy to be adopted is a heating strategy.

[0041] For example, after acquiring the first engine coolant temperature and the first engine intake air temperature, the engine manager 8 further reads its configured storage module to obtain a preset first coolant temperature threshold and a second coolant temperature threshold that is lower than the first coolant temperature threshold. Simultaneously, the engine manager 8 reads the storage module to obtain a preset first intake air temperature threshold and a second intake air temperature threshold that is lower than the first intake air temperature threshold. At this point, the engine manager 8 compares the first engine coolant temperature with the first coolant temperature threshold and the second coolant temperature threshold, and compares the first engine intake air temperature with the first intake air temperature threshold and the second intake air temperature threshold. If the engine manager 8 detects that only the first engine coolant temperature is higher than the first coolant temperature threshold, it determines that the engine 13 is overheating, and thus directly determines that the target thermal management strategy to be adopted is to increase the electric water pump temperature. 4. Rotation speed, thereby increasing the cooling strategy of seawater volume; similarly, if the engine manager 8 detects that only the intake air temperature of the first engine is greater than the first intake air temperature threshold, it can also determine that the engine 13 is overheating, and thus directly determine that the target thermal management strategy to be adopted is the cooling strategy; similarly, if the engine manager 8 detects that the water temperature of the first engine is greater than the first water temperature threshold and the intake air temperature of the first engine is greater than the first intake air temperature threshold, it can also determine that the engine 13 is overheating, and thus directly determine that the target thermal management strategy to be adopted is the cooling strategy; or, if the engine manager 8 detects that the water temperature of the first engine is less than the second water temperature threshold and the intake air temperature of the first engine is less than the second intake air temperature threshold, it can determine that the engine 13 is undercooled, and thus directly determine that the target thermal management strategy to be adopted is the heating strategy.

[0042] In this way, by collecting engine coolant temperature and engine intake air temperature, and combining the engine coolant temperature and engine intake air temperature to determine whether to adopt a cooling strategy or a heating strategy, the electronic equipment can identify whether the engine is in an overcooled / overheated state, and thus accurately identify the target thermal management strategy to be adopted. This ensures that the thermal management strategy can be adapted to the engine's thermal management state, significantly improving the adjustment accuracy of the thermal management system.

[0043] Step S30: Determine the first target water pump speed in conjunction with the target thermal management strategy, and adjust the current electronic water pump speed of the methanol fuel power system to the first target water pump speed; It should be noted that the first target water pump speed is the target operating speed of the electronic water pump 4 that matches the target thermal management strategy. It can be understood that this first target water pump speed is a quantitative parameter determined by technicians based on a preset mapping relationship between engine coolant temperature / engine intake air temperature and heat dissipation requirements. This application does not limit the specific value of the first target water pump speed. Furthermore, the current electronic water pump speed is the real-time operating speed of the electronic water pump 4 before adjustment.

[0044] In this embodiment, after determining the target thermal management strategy, the electronic device further reads the aforementioned storage module to obtain the first target water pump speed that matches the cooling / heating strategy. At this time, the electronic device detects the current electronic water pump speed of the electronic water pump in the methanol fuel power system and adjusts the current electronic water pump speed to the first target water pump speed to increase / decrease the seawater flow rate in the methanol fuel power system.

[0045] For example, when the engine controller 8 determines that the target thermal management strategy is a cooling strategy, it further reads the aforementioned storage module to obtain the first target water pump speed that matches the cooling strategy. At the same time, the engine controller 8 detects the current electronic water pump speed of the electronic water pump 4 in the methanol fuel power system. The engine controller 8 then adjusts the electronic water pump 4 to the first target water pump speed, which is higher than the current electronic water pump speed, thereby increasing the seawater flow to enhance the heat dissipation efficiency of the engine 13 and ultimately reducing the temperature of the engine 13. Similarly, when the engine controller 8 determines that the target thermal management strategy is a heating strategy, it further obtains the first target water pump speed that matches the heating strategy. At the same time, the engine controller 8 detects the current electronic water pump speed of the electronic water pump 4 in the methanol fuel power system. The engine controller 8 then adjusts the electronic water pump 4 to the first target water pump speed, which is lower than the current electronic water pump speed, thereby reducing the seawater flow rate to reduce the heat dissipation efficiency of the enhanced engine 13 and ultimately increasing the temperature of the engine 13.

[0046] In this way, by adjusting the current speed of the electronic water pump according to the preset target water pump speed, the electronic device can precisely match the seawater flow and heat dissipation demand in the cooling circuit of the methanol fuel power system. This allows the electronic water pump speed to be increased under the cooling strategy to enhance heat dissipation performance and prevent engine overheating, and the electronic water pump speed to be decreased under the heating strategy to reduce heat dissipation performance and prevent engine overcooling, thereby further improving engine safety.

[0047] In one feasible implementation, the step of "determining the first target water pump speed in conjunction with the target thermal management strategy" in step S30 above may specifically include steps S301 to S302: Step S301: When the target thermal management strategy is detected to be the cooling strategy, the preset first water pump speed is determined as the first target water pump speed; or, Step S302: When the target thermal management strategy is detected to be the heating strategy, the preset second water pump speed is determined to be the first target water pump speed, wherein the second water pump speed is less than the first water pump speed.

[0048] It should be noted that the speed of the first water pump is a fixed operating speed of the electronic water pump 4 pre-calibrated for the cooling strategy. It can be understood that the speed of the first water pump is adapted to the cooling requirements of the engine 13. Similarly, the speed of the second water pump is a fixed operating speed of the electronic water pump 4 pre-calibrated for the heating strategy. It can be understood that the speed of the second water pump is adapted to the heating requirements of the engine 13, and its value should be lower than that of the first water pump.

[0049] In this embodiment, after determining the target thermal management strategy, if the electronic device reads that the target thermal management strategy to be adopted is a cooling strategy, it further obtains a preset first water pump speed and determines the first water pump speed as the first target water pump speed to be adopted; similarly, if the electronic device detects that the target thermal management strategy to be adopted is a heating strategy, it further obtains a second water pump speed with a value lower than the first water pump speed, and determines the second water pump speed as the first target water pump speed to be adopted.

[0050] For example, after determining the target thermal management strategy, if the engine controller 8 determines that the target thermal management strategy to be adopted is a cooling strategy, it reads the aforementioned storage module to obtain a preset first water pump speed that is greater than the current speed of the electronic water pump 4, and determines the first water pump speed as a first target water pump speed that can increase the seawater flow rate in the methanol fuel power system. Similarly, after determining the target thermal management strategy, if the engine controller 8 determines that the target thermal management strategy to be adopted is a heating strategy, it reads the aforementioned storage module to obtain a preset second water pump speed that is less than the current speed of the electronic water pump 4, and determines the second water pump speed as a second target water pump speed that can reduce the seawater flow rate in the methanol fuel power system.

[0051] In this way, by adjusting the current speed of the electronic water pump according to the preset target water pump speed, the electronic device can precisely match the seawater flow and heat dissipation demand in the cooling circuit of the methanol fuel power system. This allows the electronic water pump speed to be increased under the cooling strategy to enhance heat dissipation performance and prevent engine overheating, and the electronic water pump speed to be decreased under the heating strategy to reduce heat dissipation performance and prevent engine overcooling, thereby further improving engine safety.

[0052] In this embodiment, during the ship's operation, the electronic equipment installed on board first detects the methanol fuel power system. This involves collecting the engine coolant temperature and engine intake air temperature from various sensors within the system. The electronic equipment then processes these temperatures to determine the target thermal management strategy: either a cooling strategy to lower the engine coolant temperature and / or the engine intake air temperature, or a heating strategy to raise both temperatures. Finally, after determining the target thermal management strategy, the electronic equipment reads from the aforementioned storage module to obtain a target water pump speed that matches the cooling / heating strategy. At this point, the electronic equipment detects the current speed of the electronic water pump within the methanol fuel power system and adjusts it to the target speed to increase / decrease the seawater flow rate within the methanol fuel power system.

[0053] Thus, this application solves the technical problem in related technologies where the inability of the thermal management system to adjust seawater flow causes methanol engines to easily enter an overcooled or overheated state. Specifically, this application uses the detection of engine coolant temperature and engine intake air temperature in the methanol fuel power system, combined with these temperatures, to determine the required thermal management strategy. This determines the target electronic water pump speed that matches the thermal management strategy, and adjusts the speed of the electronic water pump in the methanol fuel power system to the target speed. This allows the electronic equipment to adjust the seawater flow in the cooling circuit of the methanol fuel power system, thereby preventing the engine from entering an overcooled or overheated state by changing the seawater flow, significantly improving engine safety.

[0054] Based on the first embodiment of this application, a second embodiment of this application is proposed herein. In this second embodiment, content that is the same as or similar to the above embodiments can be referred to the above description and will not be repeated hereafter. Based on this, the methanol fuel power system includes an engine, a first throttle valve, a second throttle valve, a radiator, an intercooler, and an electric water pump. The electric water pump is connected to the radiator through the first throttle valve and to the intercooler through the second throttle valve. The engine is connected to the radiator and the intercooler, respectively. Following step S20 above, the thermal management method for the methanol fuel power system of this application may further include steps A10 to A20: Step A10: When the target thermal management strategy is detected to be the cooling strategy, the target throttle valve is determined by combining the first engine water temperature and the first engine intake air temperature, wherein the target throttle valve is the first throttle valve or the second throttle valve; Step A20: Obtain the preset first throttle valve opening, adjust the target throttle valve to the first throttle valve opening, and execute the step of determining the first target water pump speed in conjunction with the target thermal management strategy.

[0055] It should be noted that, as Figure 1As shown, the methanol fuel power system includes an engine 13, a first throttle valve 6, a second throttle valve 5, a radiator 9, an intercooler 1, and an electric water pump 4. The electric water pump 4 is connected to the radiator 9 through the first throttle valve 6, and the radiator 9 is connected to the engine 13. At the same time, the electric water pump 4 is connected to the intercooler 1 through the second throttle valve 5, and the intercooler 1 is connected to the engine 13. Understandably, when the methanol fuel power system is running, the electronic water pump 4 first collects seawater from the sea area where the ship is located and delivers the seawater to the radiator 9 through the first throttle valve 6. At this time, the heat carried by the cooling water in the engine 13 is transferred to the seawater through the radiator 9, thereby reducing the temperature of the cooling water. At the same time, the electronic water pump 4 delivers the seawater to the intercooler 1 through the second throttle valve 5. At this time, the intercooler 1 uses the seawater to reduce the engine intake air temperature, which has increased significantly after being compressed by the turbocharger 14. Finally, the seawater that has absorbed heat in the radiator 9 and the intercooler 1 enters the water tank 7 through the preset pipeline and then enters the sea outside the ship through the water tank 7.

[0056] Furthermore, the target throttle valve is one whose opening needs to be adjusted according to the temperature regulation requirements of the methanol fuel power system, such as... Figure 1 As shown, the target throttle valve can specifically be throttle valve 5 or throttle valve 6 within the methanol fuel power system. Furthermore, the target throttle valve opening is a fixed opening value pre-calibrated for the target thermal management strategy. Additionally, the initial throttle valve opening is the real-time opening state of the target throttle valve before adjustment.

[0057] In this embodiment, after determining the target thermal management strategy to be executed, if the electronic device detects that the target thermal management strategy is the aforementioned cooling strategy, it further compares the first engine water temperature with a preset standard water temperature range to obtain a first comparison result. At the same time, the electronic device compares the first engine intake air temperature with the preset standard intake air temperature range to obtain a second comparison result. The electronic device then combines the first comparison result and the second comparison result to screen the first throttle valve and the second throttle valve in the methanol fuel thermal management system, thereby determining that the target throttle valve to be adjusted is either the first throttle valve or the second throttle valve. Finally, based on the target thermal management strategy, the electronic device queries the opening degree of the first throttle valve that matches the target throttle valve, and the electronic device adjusts the target throttle valve from the preset initial throttle valve opening degree to the opening degree of the first throttle valve.

[0058] For example, after determining the target thermal management strategy, if the engine controller 8 detects that the target thermal management strategy is the aforementioned cooling strategy, it further compares the first engine coolant temperature with a preset standard coolant temperature range to obtain a first comparison result. Simultaneously, the electronic device compares the first engine intake air temperature with the preset standard intake air temperature range to obtain a second comparison result. The engine controller 8 then combines the first and second comparison results to identify the target thermal requirements corresponding to the engine coolant temperature and engine intake air temperature, and filters the first throttle valve 6 and the second throttle valve 5 based on the target thermal requirements. Therefore, if only the first engine coolant temperature has a cooling requirement, the first throttle valve 6 is identified as the target throttle valve whose opening needs adjustment; or, if only the first engine coolant temperature has a cooling requirement, the first throttle valve 6 is identified as the target throttle valve whose opening needs adjustment. When there is a need to cool the engine intake air temperature, the second throttle valve 5 is identified as the target throttle valve whose opening needs to be adjusted. Finally, the engine controller 8 further reads the aforementioned storage module to obtain the preset strategy-throttle valve-opening matching relationship. Based on the target thermal management strategy to be executed and the target throttle valve, the engine controller 8 queries the strategy-throttle valve-opening matching relationship to determine the opening of the first throttle valve. The engine controller 8 then detects that the current throttle valve opening of the target throttle valve is the preset initial throttle valve opening. The engine controller 8 drives the throttle valve core through the drive unit to adjust the current throttle valve opening of the target throttle valve from the initial throttle valve opening to the first throttle valve opening, thereby reducing the total amount of seawater in the cooling circuit to reduce the engine water temperature or engine intake air temperature of the engine 13.

[0059] In this way, the electronic equipment can determine the respective thermal management requirements of the engine coolant temperature and engine intake air temperature by using the first engine coolant temperature and the first engine intake air temperature. Then, it can select the target throttle valve that needs to be adjusted, so as to adjust the engine coolant temperature cooling circuit or the engine intake air temperature cooling circuit through the target throttle valve. This ensures independent and stable control of the engine coolant temperature and engine intake air temperature, and further improves the adjustment accuracy of the thermal management system.

[0060] Furthermore, in this embodiment and another embodiment, such as Figure 1 As shown, the methanol fuel power system also includes a water temperature sensor 11 and an intake air temperature sensor 10. The water temperature sensor 11 and the intake air temperature sensor 10 are each connected to the engine 13. The water temperature sensor 11 can collect the coolant temperature of the engine 13 as the engine water temperature. Similarly, the intake air temperature sensor 10 can collect the intake air temperature of the engine 13.

[0061] Furthermore, in this embodiment and another embodiment, such as Figure 1As shown, the methanol fuel power system also includes a water tank 3 and a ball valve 2. The water tank 3 is connected to the electric water pump 4, and the ball valve 2 is connected to the water tank 3. It is understood that when the electric water pump 4 is in the start-up phase, the electronic device can open the ball valve 2 to connect the water tank 3 and the electric water pump 4, thereby allowing the water tank 3 to input stored seawater into the electric water pump 4 to remove any remaining air from the pump and prevent it from running dry and being damaged.

[0062] In addition, as shown in Figure x in this embodiment and another embodiment, the methanol fuel power system also includes a water tank 7, which is connected to the intercooler 1, the radiator 9 and the electric water pump 4 respectively, so as to receive the seawater flowing out of the intercooler 1 and the radiator 9 respectively. At the same time, the water tank 7 can also provide seawater to the electric water pump 4 when the ship's water depth is low by buffering the seawater, so as to prevent the electric water pump 4 from running dry and further improve the stability of the system.

[0063] Furthermore, in this embodiment and another embodiment, such as Figure 1 As shown, the methanol fuel power system also includes an air filter 12 and a turbocharger 14. The air filter 12 is connected to the intercooler 1 through the turbocharger 14. The air filter 12 can filter the collected outside air and input the filtered air into the turbocharger 14 for the turbocharger 14 to compress the air and introduce the compressed air into the engine 13.

[0064] In one feasible implementation, step A10 above may specifically include steps A101 to A102: Step A101: When the first engine coolant temperature is detected to be within the standard coolant temperature range and the first engine intake air temperature is greater than the first intake air temperature threshold, the first throttle valve is determined to be the target throttle valve, wherein the maximum value of the standard coolant temperature range is the first coolant temperature threshold and the minimum value of the standard coolant temperature range is the second coolant temperature threshold. or, Step A102: When the first engine coolant temperature is detected to be greater than the first coolant temperature threshold and the first engine intake air temperature is within the standard intake air temperature range, the second throttle valve is determined to be the target throttle valve, wherein the maximum value of the standard intake air temperature range is the first intake air temperature threshold and the minimum value of the standard intake air temperature range is the second intake air temperature threshold.

[0065] It should be noted that this standard coolant temperature range represents the optimal operating range of the engine coolant temperature. Its minimum value is the aforementioned second coolant temperature threshold, and its maximum value is the aforementioned first coolant temperature threshold. This means that when the engine coolant temperature is within this optimal operating range, both engine oil emulsification and component overheating can be avoided. Similarly, this standard intake air temperature range represents the optimal operating range of the engine intake air temperature. Its minimum value is the aforementioned second intake air temperature threshold, and its maximum value is the aforementioned first intake air temperature threshold. This means that when the engine intake air temperature is within this optimal operating range, both engine knocking can be avoided, and the combustion efficiency of methanol fuel can be guaranteed.

[0066] In this embodiment, after determining the target thermal management strategy to be executed, if the electronic device detects that the target thermal management strategy is the aforementioned cooling strategy, it further acquires a preset standard coolant temperature range and a standard intake air temperature range. At this time, the electronic device compares the first engine coolant temperature with the standard coolant temperature range to obtain a first comparison result. Simultaneously, it compares the first engine intake air temperature with the standard intake air temperature range to obtain a second comparison result. If the electronic device detects that the first comparison result indicates the first engine coolant temperature is within the standard coolant temperature range, and the second comparison result indicates the first engine intake air temperature is greater than the first intake air temperature threshold of the standard intake air temperature range, then the electronic device will adjust... The first throttle valve for adjusting the seawater flow on the radiator side is identified as the target throttle valve to be adjusted. By controlling the first throttle valve, the seawater flow on the radiator side is kept constant, while the seawater flow on the intercooler side is increased. Similarly, when the electronic device detects that the first comparison result is that the first engine water temperature is greater than the first water temperature threshold of the standard water temperature range, and the second comparison result is that the first engine intake air temperature is within the quasi-intake air temperature range, the electronic device identifies the second throttle valve for adjusting the seawater flow on the intercooler side as the target throttle valve to be adjusted. By controlling the second throttle valve, the seawater flow on the intercooler side is kept constant, while the seawater flow on the radiator side is increased.

[0067] For example, after determining the target thermal management strategy to be executed, if the engine controller 8 detects that the target thermal management strategy is the aforementioned cooling strategy, it further reads the aforementioned storage module to obtain the preset standard water temperature range and standard intake air temperature range. The engine controller 8 then compares the first engine water temperature with the standard water temperature range to obtain a first comparison result. At the same time, it compares the first engine intake air temperature with the standard intake air temperature range to obtain a second comparison result. After that, if the engine controller 8 detects that the first comparison result is that the first engine water temperature is within the standard water temperature range, and the second comparison result is that the first engine intake air temperature is greater than the first intake air temperature threshold of the standard intake air temperature range, the engine controller 8 determines the first throttle valve 6 used to adjust the seawater flow rate on the radiator 9 side as the target throttle valve to be adjusted. By adjusting the opening of the first throttle valve 6, it ensures that when the speed of the electric water pump 4 increases, the opening of the first throttle valve 6 is reduced to keep the seawater flow rate on the radiator 9 side unchanged, thereby increasing the seawater flow rate on the intercooler 1 side and ultimately reducing the current intake air temperature of the engine 13. or, When the engine controller 8 detects that the first comparison result is that the first engine coolant temperature is greater than the first water temperature threshold of the standard water temperature range, and the second comparison result is that the first engine intake air temperature is within the quasi-intake air temperature range, the engine controller 8 can also determine the second throttle valve 5, which is used to adjust the seawater flow rate on the intercooler 8 side, as the target throttle valve to be adjusted. By adjusting the opening of the second throttle valve 5, it ensures that the seawater flow rate on the intercooler 1 side remains unchanged when the speed of the electric water pump 4 increases, thereby increasing the seawater flow rate on the radiator 9 side, and ultimately improving the heat dissipation efficiency of the radiator 9 to reduce the first engine coolant temperature of the engine 13.

[0068] In this way, the electronic equipment can determine the respective thermal management requirements of the engine coolant temperature and engine intake air temperature by using the first engine coolant temperature and the first engine intake air temperature. Then, it can select the target throttle valve that needs to be adjusted, so as to adjust the engine coolant temperature cooling circuit or the engine intake air temperature cooling circuit through the target throttle valve. This ensures independent and stable control of the engine coolant temperature and engine intake air temperature, and further improves the adjustment accuracy of the thermal management system.

[0069] Based on the first and / or second embodiments of this application, a third embodiment of this application is proposed herein. In this third embodiment, content that is the same as or similar to the above embodiments can be referred to the above description and will not be repeated hereafter. Furthermore, after step S10 above, the thermal management method for the methanol fuel power system of this application may further include steps B10 to B50: Step B10: If the first engine coolant temperature is detected to be lower than the second coolant temperature threshold and the first engine intake air temperature is within the standard intake air temperature range, determine the first throttle valve as the target throttle valve. Step B20: Adjust the target throttle valve to the second throttle valve opening and obtain the second engine water temperature of the methanol fuel power system; Step B30: Determine the target water pump adjustment strategy based on the second engine water temperature, wherein the target water pump adjustment strategy is a speed reduction strategy or a speed constant strategy; Step B40: If the target water pump adjustment strategy is detected to be the speed reduction strategy, the second target water pump speed is determined in combination with the second engine water temperature; Step B50: Adjust the current electronic water pump speed to the second target water pump speed.

[0070] In this embodiment, after the electronic device acquires the first engine coolant temperature and the first engine intake air temperature, it further compares the first engine coolant temperature with a preset standard coolant temperature range to obtain a first comparison result. Simultaneously, the electronic device compares the first engine intake air temperature with the preset standard intake air temperature range to obtain a second comparison result. If the electronic device detects that the target thermal management strategy to be executed is a heating strategy, and the first comparison result shows that the first engine coolant temperature is less than a second coolant temperature threshold within the standard temperature range, and the second comparison result shows that the first engine intake air temperature is within the standard intake air temperature range, then the electronic device determines the first throttle valve used to adjust the radiator side as the target throttle valve to be adjusted. Afterwards, the electronic device queries a second throttle valve that matches the first throttle valve based on the heating strategy. The electronic device adjusts the second throttle valve opening from the preset initial throttle valve opening to the second throttle valve opening. Simultaneously, the electronic device detects the engine to determine the second engine coolant temperature. Then, the electronic device compares the second engine coolant temperature with the aforementioned standard coolant temperature range to obtain a third comparison result. Based on the third comparison result, it determines whether the required water pump adjustment strategy is a speed reduction strategy or a speed-constant strategy. Finally, if the electronic device detects that the water pump adjustment strategy is a speed reduction strategy, it further determines the engine coolant temperature deviation. Based on the engine coolant temperature deviation, it determines the second target water pump speed and adjusts the current speed of the electronic water pump from the first target water pump speed to the second target water pump speed to reduce the speed of the electronic water pump and ultimately increase the engine coolant temperature.

[0071] For example, after acquiring the first engine coolant temperature and the first engine intake air temperature, the engine controller 8 further compares the first engine coolant temperature with a preset standard coolant temperature range to obtain a first comparison result. Simultaneously, the engine controller 8 compares the first engine intake air temperature with the preset standard intake air temperature range to obtain a second comparison result. If the engine controller 8 detects that the target thermal management strategy to be executed is a heating strategy, and the first comparison result indicates that the first engine coolant temperature is less than a second coolant temperature threshold within the standard temperature range, and the second comparison result indicates that the first engine intake air temperature is within the standard intake air temperature range, then the engine controller 8 determines the first throttle valve 6, used to adjust the seawater flow rate on the radiator 9 side, as the target throttle valve to be adjusted. The engine controller 8 thus determines that reducing the first throttle valve 6 can reduce the heat dissipation efficiency of the radiator 9, thereby increasing the engine intake water temperature of the engine 13. At this time, based on the target thermal management strategy to be executed and the first throttle valve 6, the engine controller 8 queries the above strategy-throttle valve-opening matching relationship to determine the preset second throttle valve opening. The engine controller 8 then drives the throttle valve core via the drive unit to adjust the current throttle valve opening of the first throttle valve 6 from the initial throttle valve opening to the second throttle valve opening, thereby reducing the seawater flow on the radiator side and increasing the engine water temperature. Next, the engine controller 8 detects the second engine water temperature of the engine 13 via the aforementioned water temperature sensor 11 and compares the second engine water temperature with the aforementioned standard water temperature range to obtain a third comparison result. Based on the third comparison result, it determines whether the required water pump adjustment strategy is a speed reduction strategy or a speed-constant strategy. Finally, if the electronic device detects that the second engine water temperature is still lower than the aforementioned second water temperature threshold, it determines that the required water pump adjustment strategy is a speed reduction strategy. At this time, the engine controller 8 further determines the engine water temperature deviation between the second engine water temperature and the second water temperature threshold, and based on the engine water temperature deviation, determines the second target water pump speed. The engine controller 8 adjusts the current speed of the electronic water pump to the second target water pump speed, thereby reducing the speed of the electronic water pump and further increasing the engine water temperature.

[0072] In this way, when the electronic equipment detects that the engine coolant temperature is too low, it can promptly select the target throttle valve that needs to be adjusted, so as to adjust the engine coolant cooling circuit through the target throttle valve, thereby reducing the heat dissipation efficiency of the engine cooling circuit, increasing the engine coolant temperature, and preventing the engine from entering an overcooled state.

[0073] Based on the embodiments of this application, a fourth embodiment of this application is proposed herein. In this fourth embodiment, content that is the same as or similar to the embodiments described above can be referred to the above description and will not be repeated hereafter. Furthermore, after step S10, the thermal management method for the methanol fuel power system of this application may further include steps C10 to C50: Step C10: If the first engine coolant temperature is detected to be within the standard coolant temperature range and the first engine intake air temperature is less than the second intake air temperature threshold, determine the second throttle valve as the target throttle valve. Step C20: Adjust the target throttle valve to the third throttle valve opening and obtain the second engine intake temperature of the methanol fuel power system; Step C30: Determine the target water pump adjustment strategy based on the second engine intake air temperature; Step C40: If the target water pump adjustment strategy is detected to be the speed reduction strategy, the third target water pump speed is determined in combination with the second engine intake air temperature; Step C50: Adjust the current electronic water pump speed to the third target water pump speed; In this embodiment, after acquiring the first engine coolant temperature and the first engine intake air temperature, the electronic device further compares the first engine coolant temperature with a preset standard coolant temperature range to obtain a first comparison result. Simultaneously, the electronic device compares the first engine intake air temperature with the preset standard intake air temperature range to obtain a second comparison result. Then, if the electronic device detects that the target thermal management strategy to be executed is a heating strategy, and the first comparison result indicates that the first engine coolant temperature is within the standard coolant temperature range, and the second comparison result indicates that the first engine intake air temperature is less than a second intake air temperature threshold within the standard intake air temperature range, then the electronic device determines the second throttle valve used to adjust the intercooler side as the target throttle valve to be adjusted. Afterwards, the electronic device queries the opening degree of the third throttle valve matched with the second throttle valve based on the heating strategy, and sets the opening degree of the third throttle valve accordingly. The second throttle valve adjusts from the preset initial throttle valve opening to the third throttle valve opening. Simultaneously, the electronic equipment detects the engine to determine the second engine intake air temperature. Then, the electronic equipment compares the second engine intake air temperature with the aforementioned standard intake air temperature range to obtain a fourth comparison result. Based on the fourth comparison result, it determines whether the water pump adjustment strategy to be adopted is a speed reduction strategy or a speed unchanged strategy. Finally, if the electronic equipment detects that the second water pump adjustment strategy is a speed reduction strategy, it further determines the engine intake air temperature deviation. Based on the engine intake air temperature deviation, it determines the third target water pump speed and adjusts the current speed of the electronic water pump from the first target water pump speed to the third target water pump speed to reduce the speed of the electronic water pump and ultimately increase the engine intake air temperature.

[0074] For example, after acquiring the first engine coolant temperature and the first engine intake air temperature, the engine controller 8 further compares the first engine coolant temperature with a preset standard coolant temperature range to obtain a first comparison result. Simultaneously, the engine controller 8 compares the first engine intake air temperature with the preset standard intake air temperature range to obtain a second comparison result. If the engine controller 8 detects that the target thermal management strategy to be executed is a heating strategy, and the first comparison result indicates that the first engine coolant temperature is within the standard coolant temperature range, and the second comparison result indicates that the first engine intake air temperature is less than a second intake air temperature threshold within the standard intake air temperature range, then the engine controller 8 determines the second throttle valve 5, used to adjust the seawater flow rate on one side of the intercooler 1, as the target throttle valve to be adjusted. The engine controller 8 then reduces the heat dissipation efficiency of the intercooler 1 by lowering the second throttle valve 5, thereby increasing the engine intake air temperature of the engine 13. Simultaneously, based on the target thermal management strategy to be executed and the second throttle valve 5, the engine controller 8 queries the aforementioned strategy-throttle valve-opening matching relationship to determine a preset third throttle valve opening. The engine controller 8 then drives... The unit drives the throttle valve core to adjust the current throttle valve opening of the second throttle valve 5 from the initial throttle valve opening to the third throttle valve opening, thereby reducing the seawater flow on the intercooler 1 side and increasing the engine intake air temperature. Then, the engine controller 8 detects the second engine intake air temperature of the engine 13 through the intake air temperature sensor 10 and compares the second engine intake air temperature with the standard intake air temperature range to obtain a fourth comparison result. Based on the fourth comparison result, it determines whether the second water pump adjustment strategy to be adopted is a speed reduction strategy or a speed unchanged strategy. Finally, if the electronic device detects that the second engine intake air temperature is still lower than the second intake air temperature threshold, it determines that the second water pump adjustment strategy to be adopted is a speed reduction strategy. At this time, the engine controller 8 further determines the engine intake air deviation between the second engine intake air temperature and the second intake air temperature threshold, and determines the third target water pump speed based on the engine intake air deviation. The engine controller 8 adjusts the current speed of the electronic water pump to the third target water pump speed, thereby reducing the speed of the electronic water pump and further increasing the engine intake air temperature.

[0075] In this way, when the electronic equipment detects that the engine intake air temperature is too low, it can promptly select the target throttle valve that needs to be adjusted, so as to adjust the engine intake air temperature cooling circuit through the target throttle valve, thereby reducing the heat dissipation efficiency of the engine intake air temperature cooling circuit, increasing the engine intake air temperature, and preventing the engine from entering an overcooled state.

[0076] This application also provides a thermal management device for a methanol fuel power system; please refer to [reference needed]. Figure 3 The device includes: Engine detection module 10 is used to obtain the first engine water temperature and the first engine intake air temperature of the methanol fuel power system; The strategy filtering module 20 is used to determine a target thermal management strategy based on the first engine water temperature and the first engine intake air temperature, wherein the target thermal management strategy is a cooling strategy or a heating strategy. The water pump adjustment module 30 is used to determine the first target water pump speed in conjunction with the target thermal management strategy, and adjust the current electronic water pump speed of the methanol fuel power system to the first target water pump speed.

[0077] In one feasible implementation, the strategy filtering module 20 is further configured to: If the first engine coolant temperature is detected to be greater than a preset first coolant temperature threshold, and / or the first engine intake air temperature is greater than a preset first intake air temperature threshold, the target thermal management strategy is determined to be a cooling strategy. or, If the first engine coolant temperature is detected to be lower than a preset second coolant temperature threshold and the first engine intake air temperature is detected to be lower than a preset second intake air temperature threshold, the target thermal management strategy is determined to be a heating strategy, wherein the second coolant temperature threshold is lower than the first coolant temperature threshold and the second intake air temperature threshold is lower than the first intake air temperature threshold.

[0078] In one feasible implementation, the above-mentioned water pump regulating module 30 is further used for: If the target thermal management strategy is detected to be the cooling strategy, the preset first water pump speed is determined as the first target water pump speed. or, When the target thermal management strategy is detected to be the heating strategy, the preset second water pump speed is determined as the first target water pump speed, wherein the second water pump speed is less than the first water pump speed.

[0079] In one feasible implementation, the methanol fuel power system includes an engine, a first throttle valve, a second throttle valve, a radiator, an intercooler, and an electric water pump. The electric water pump is connected to the radiator via the first throttle valve and to the intercooler via the second throttle valve. The engine is connected to the radiator and the intercooler, respectively. The water pump regulating module 30 is further used for: After the step of determining the target thermal management strategy based on the first engine coolant temperature and the first engine intake air temperature, the method further includes: When the target thermal management strategy is detected to be the cooling strategy, the target throttle valve is determined by combining the first engine water temperature and the first engine intake air temperature, wherein the target throttle valve is the first throttle valve or the second throttle valve; Obtain the preset first throttle valve opening, adjust the target throttle valve to the first throttle valve opening, and execute the step of determining the first target water pump speed in conjunction with the target thermal management strategy.

[0080] In one feasible implementation, the above-mentioned water pump regulating module 30 is further used for: If the engine coolant temperature is detected to be within the standard coolant temperature range and the engine intake air temperature is greater than the first intake air temperature threshold, the first throttle valve is determined to be the target throttle valve, wherein the maximum value of the standard coolant temperature range is the first coolant temperature threshold and the minimum value of the standard coolant temperature range is the second coolant temperature threshold. or, If the engine coolant temperature is detected to be greater than the first coolant temperature threshold and the engine intake air temperature is within the standard intake air temperature range, the second throttle valve is determined to be the target throttle valve, wherein the maximum value of the standard intake air temperature range is the first intake air temperature threshold and the minimum value of the standard intake air temperature range is the second intake air temperature threshold.

[0081] In one feasible implementation, the above-mentioned water pump regulating module 30 is further used for: If the first engine coolant temperature is detected to be lower than the second coolant temperature threshold and the first engine intake air temperature is within the standard intake air temperature range, the first throttle valve is determined to be the target throttle valve. Adjust the target throttle valve to the second throttle valve opening, and obtain the second engine water temperature of the methanol fuel power system; The target water pump adjustment strategy is determined based on the second engine water temperature, wherein the target water pump adjustment strategy is a speed reduction strategy or a speed constant strategy. If the target water pump adjustment strategy is detected to be the speed reduction strategy, the second target water pump speed is determined in combination with the second engine water temperature; Adjust the current electronic water pump speed to the second target water pump speed.

[0082] In one feasible implementation, the above-mentioned water pump regulating module 30 is further used for: If the first engine coolant temperature is detected to be within the standard coolant temperature range and the first engine intake air temperature is less than the second intake air temperature threshold, the second throttle valve is determined to be the target throttle valve. Adjust the target throttle valve to the third throttle valve opening and obtain the second engine intake temperature of the methanol fuel power system; The target water pump adjustment strategy is determined based on the intake air temperature of the second engine. If the target water pump adjustment strategy is detected to be the speed reduction strategy, the third target water pump speed is determined in combination with the second engine intake air temperature. Adjust the current electronic water pump speed to the third target water pump speed.

[0083] The thermal management device for a methanol fuel power system provided in this application, employing the thermal management method for a methanol fuel power system described in the above embodiments, can solve the technical problem in related technologies where the inability of the thermal management system to regulate seawater flow causes the methanol engine to easily enter an overcooled or overheated state. Compared with the prior art, the beneficial effects of the thermal management device for a methanol fuel power system provided in this application are the same as those of the thermal management method for a methanol fuel power system provided in the above embodiments, and other technical features in the thermal management device for a methanol fuel power system are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0084] This application provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the thermal management method of the methanol fuel power system in Embodiment 1 above.

[0085] The following is for reference. Figure 4 The diagram illustrates a structural schematic of an electronic device suitable for implementing the embodiments of this application. The electronic device in the embodiments of this application may include, but is not limited to, electronic devices configured within a ship, or terminals such as mobile terminals, data storage control terminals, and PCs connected to an electronic control unit associated with the electronic device. Figure 4 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0086] like Figure 4As shown, the electronic device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory 1002 or a program loaded from a storage device 1003 into a random access memory 1004. The random access memory 1004 also stores various programs and data required for the operation of the electronic device. The processing unit 1001, the read-only memory 1002, and the random access memory 1004 are interconnected via a bus 1005. An input / output interface 1006 is also connected to the bus. Typically, the following systems can be connected to the input / output interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. The communication device 1009 allows the electronic device to communicate wirelessly or wiredly with other devices to exchange data. Although the diagrams show electronic devices with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented alternatively.

[0087] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from read-only memory 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0088] The electronic device provided in this application employs the thermal management method for the methanol fuel power system described in the above embodiments, which can solve the technical problem in related technologies where the thermal management system's inability to adjust seawater flow causes the methanol engine to easily enter an overcooled or overheated state. Compared with the prior art, the beneficial effects of the electronic device provided in this application are the same as those of the thermal management method for the methanol fuel power system provided in the above embodiments, and other technical features of this electronic device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0089] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0090] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0091] This application provides a ship having a methanol fuel power system and electronic equipment configured thereon, the electronic equipment being used to perform the thermal management method of the methanol fuel power system in the above embodiments.

[0092] The vessel provided in this application solves the technical problem in related technologies where the inability of the thermal management system to regulate seawater flow causes the methanol engine to easily enter an overcooled or overheated state. Compared with the prior art, the beneficial effects of the vessel provided in this application are the same as those of the thermal management method for the methanol fuel power system provided in the above embodiments, and will not be repeated here.

[0093] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the thermal management method of the methanol fuel power system in the above embodiments.

[0094] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0095] The aforementioned computer-readable storage medium may be included in an electronic device or may exist independently without being assembled into an electronic device.

[0096] The aforementioned computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to: acquire the first engine water temperature and the first engine intake air temperature of the methanol fuel power system; determine a target thermal management strategy based on the first engine water temperature and the first engine intake air temperature, wherein the target thermal management strategy is a cooling strategy or a heating strategy; determine a first target water pump speed in conjunction with the target thermal management strategy, and adjust the current electronic water pump speed of the methanol fuel power system to the first target water pump speed.

[0097] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0098] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0099] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0100] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described thermal management method for a methanol fuel power system. This solves the technical problem in related technologies where the inability of the thermal management system to regulate seawater flow causes the methanol engine to easily enter an overcooled or overheated state. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the thermal management method for a methanol fuel power system provided in the above embodiments, and will not be elaborated upon here.

[0101] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the thermal management method for a methanol fuel power system as described above.

[0102] The computer program product provided in this application can solve the technical problem in related technologies where the inability of the thermal management system to adjust seawater flow causes methanol engines to easily enter an overcooled or overheated state. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the thermal management method for the methanol fuel power system provided in the above embodiments, and will not be repeated here.

[0103] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A thermal management method for a methanol fuel power system, characterized in that, The thermal management method for a methanol fuel power system is applied to ships containing a methanol fuel power system, and the method includes: Obtain the first engine water temperature and the first engine intake air temperature of the methanol fuel power system; A target thermal management strategy is determined based on the first engine water temperature and the first engine intake air temperature, wherein the target thermal management strategy is a cooling strategy or a heating strategy. The first target water pump speed is determined based on the target thermal management strategy, and the current electronic water pump speed of the methanol fuel power system is adjusted to the first target water pump speed.

2. The thermal management method for a methanol fuel power system as described in claim 1, characterized in that, The step of determining the target thermal management strategy based on the first engine coolant temperature and the first engine intake air temperature includes: If the first engine coolant temperature is detected to be greater than a preset first coolant temperature threshold, and / or the first engine intake air temperature is greater than a preset first intake air temperature threshold, the target thermal management strategy is determined to be a cooling strategy. or, If the first engine coolant temperature is detected to be lower than a preset second coolant temperature threshold and the first engine intake air temperature is detected to be lower than a preset second intake air temperature threshold, the target thermal management strategy is determined to be a heating strategy, wherein the second coolant temperature threshold is lower than the first coolant temperature threshold and the second intake air temperature threshold is lower than the first intake air temperature threshold.

3. The thermal management method for a methanol fuel power system as described in claim 1, characterized in that, The step of determining the first target water pump speed in conjunction with the target thermal management strategy includes: If the target thermal management strategy is detected to be the cooling strategy, the preset first water pump speed is determined as the first target water pump speed. or, When the target thermal management strategy is detected to be the heating strategy, the preset second water pump speed is determined as the first target water pump speed, wherein the second water pump speed is less than the first water pump speed.

4. The thermal management method for a methanol fuel power system as described in claim 1, characterized in that, The methanol fuel power system includes an engine, a first throttle valve, a second throttle valve, a radiator, an intercooler, and an electric water pump. The electric water pump is connected to the radiator through the first throttle valve and to the intercooler through the second throttle valve. The engine is connected to the radiator and the intercooler, respectively. After the step of determining the target thermal management strategy based on the first engine coolant temperature and the first engine intake air temperature, the method further includes: When the target thermal management strategy is detected to be the cooling strategy, the target throttle valve is determined by combining the first engine water temperature and the first engine intake air temperature, wherein the target throttle valve is the first throttle valve or the second throttle valve; Obtain the preset first throttle valve opening, adjust the target throttle valve to the first throttle valve opening, and execute the step of determining the first target water pump speed in conjunction with the target thermal management strategy.

5. The thermal management method for a methanol fuel power system as described in claim 4, characterized in that, The step of determining the target throttle valve by combining the first engine coolant temperature and the first engine intake air temperature includes: If the engine coolant temperature is detected to be within the standard coolant temperature range and the engine intake air temperature is greater than the first intake air temperature threshold, the first throttle valve is determined to be the target throttle valve, wherein the maximum value of the standard coolant temperature range is the first coolant temperature threshold and the minimum value of the standard coolant temperature range is the second coolant temperature threshold. or, If the engine coolant temperature is detected to be greater than the first coolant temperature threshold and the engine intake air temperature is within the standard intake air temperature range, the second throttle valve is determined to be the target throttle valve, wherein the maximum value of the standard intake air temperature range is the first intake air temperature threshold and the minimum value of the standard intake air temperature range is the second intake air temperature threshold.

6. The thermal management method for a methanol fuel power system as described in any one of claims 1 to 5, characterized in that, After the step of obtaining the first engine coolant temperature and the first engine intake air temperature of the methanol fuel power system, the method further includes: If the first engine coolant temperature is detected to be lower than the second coolant temperature threshold and the first engine intake air temperature is within the standard intake air temperature range, the first throttle valve is determined to be the target throttle valve. Adjust the target throttle valve to the second throttle valve opening, and obtain the second engine water temperature of the methanol fuel power system; The target water pump adjustment strategy is determined based on the second engine water temperature, wherein the target water pump adjustment strategy is a speed reduction strategy or a speed constant strategy. If the target water pump adjustment strategy is detected to be the speed reduction strategy, the second target water pump speed is determined in combination with the second engine water temperature; Adjust the current electronic water pump speed to the second target water pump speed.

7. The thermal management method for a methanol fuel power system as described in claim 6, characterized in that, After the step of obtaining the first engine coolant temperature and the first engine intake air temperature of the methanol fuel power system, the method further includes: If the first engine coolant temperature is detected to be within the standard coolant temperature range and the first engine intake air temperature is less than the second intake air temperature threshold, the second throttle valve is determined to be the target throttle valve. Adjust the target throttle valve to the third throttle valve opening and obtain the second engine intake temperature of the methanol fuel power system; The target water pump adjustment strategy is determined based on the intake air temperature of the second engine. If the target water pump adjustment strategy is detected to be the speed reduction strategy, the third target water pump speed is determined in combination with the second engine intake air temperature. Adjust the current electronic water pump speed to the third target water pump speed.

8. An electronic device, characterized in that, The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the thermal management method for a methanol fuel power system as described in any one of claims 1 to 7.

9. A ship, characterized in that, The vessel includes a methanol fuel power system and the electronic equipment as described in claim 8.

10. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the thermal management method for a methanol fuel power system as described in any one of claims 1 to 7.

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