A control method and device for a reforming auxiliary system of a methanol fuel engine

Abstract

The present application relates to the technical field of engine control, and especially relates to a control method and device of a reforming auxiliary system of a methanol fuel engine. The present application first acquires the load output demand of the methanol fuel engine by reading the ECU (electronic control unit) of the methanol fuel engine, then determines the working mode of the reforming auxiliary system of the methanol fuel engine according to the load output demand, and controls the first valve, the second valve, the third valve, the fourth valve, the first flowmeter, the second flowmeter and the third flowmeter according to the specific working mode, so that the present application can improve the energy utilization rate of the methanol fuel engine.

Description

Technical Field

[0001] This invention relates to the field of engine control technology, and in particular to a control method and apparatus for a methanol fuel engine reforming auxiliary system. Background Technology

[0002] Methanol, as a low-carbon fuel, is liquid at room temperature and pressure, making it easy to store and transport. Its flame propagation speed during combustion is comparable to that of diesel, and it can achieve carbon cycling by synthesizing green methanol from CO2 and green hydrogen, making it significant for data center engine applications. Methanol, as a hydrogen carrier, can be used to obtain hydrogen-rich reformed gas through reforming, enabling online hydrogen production in methanol-fueled engines. The hydrogen-rich gas then aids in combustion, facilitating cold starts. Existing methanol-fueled engines primarily include gasoline-methanol, diesel-methanol, and natural gas-methanol engines. While using pilot fuel can address the cold start issue, achieving zero carbon emissions in data centers remains challenging.

[0003] In existing technologies, methanol cracking to produce hydrogen for combustion is used to solve the problems of high latent heat of methanol vaporization and difficulty in starting at low temperatures. However, this does not take into account the engine's operating conditions and results in energy waste.

[0004] Based on this, the present invention proposes a control method and device for a methanol fuel engine reforming auxiliary system to solve the problem of how to improve the energy utilization rate of methanol fuel engines. Summary of the Invention

[0005] To address the issue of improving the energy efficiency of methanol fuel engines, this invention provides a control method and apparatus for a methanol fuel engine reforming auxiliary system.

[0006] In a first aspect, embodiments of the present invention provide a control method for a methanol fuel engine reforming auxiliary system, applied to a controller of the auxiliary system. The auxiliary system includes the controller, a water tank, a methanol reformer, and a methanol tank, a methanol fuel engine, a reforming gas-air mixer, and a plasma methanol cracker connected in sequence. The plasma methanol cracker is connected to the methanol tank. A fourth valve and a third flow meter are connected in series between the water tank and the methanol reformer. A second valve and a first flow meter are connected in series between the methanol tank and the methanol reformer. The methanol tank is connected to the methanol fuel engine through the first valve. A third valve and a second flow meter are connected in series between the methanol tank and the plasma methanol cracker. The first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter are all electrically connected to the controller. The method includes:

[0007] Obtain the load output requirements of the methanol fuel engine;

[0008] Based on the aforementioned load output requirements, the operating mode of the methanol fuel engine reforming auxiliary system is determined.

[0009] Based on the aforementioned operating mode, the first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter are controlled.

[0010] Secondly, embodiments of the present invention provide a control device for a methanol fuel engine reforming auxiliary system. The auxiliary system includes a controller, a water tank, a methanol reformer, and a methanol tank, a methanol fuel engine, a reforming gas-air mixer, and a plasma methanol cracker connected in sequence. The plasma methanol cracker is connected to the methanol tank. A fourth valve and a third flow meter are connected in series between the water tank and the methanol reformer. A second valve and a first flow meter are connected in series between the methanol tank and the methanol reformer. The methanol tank is connected to the methanol fuel engine via the first valve. A third valve and a second flow meter are connected in series between the methanol tank and the plasma methanol cracker. The first valve, second valve, third valve, fourth valve, first flow meter, second flow meter, and third flow meter are all electrically connected to the controller. The device includes:

[0011] The acquisition module is used to acquire the load output requirements of the methanol fuel engine;

[0012] The first data processing module is used to determine the operating mode of the methanol fuel engine reforming auxiliary system based on the load output demand.

[0013] The second data processing module is used to control the first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter based on the operating mode.

[0014] Thirdly, embodiments of the present invention also provide an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, it implements the method described in any embodiment of the present invention.

[0015] Fourthly, embodiments of the present invention also provide a methanol fuel engine reforming auxiliary system. The auxiliary system includes a controller, a water tank, a methanol reformer, and a methanol tank, a methanol fuel engine, a reforming gas-air mixer, and a plasma methanol cracker connected in sequence. The plasma methanol cracker is connected to the methanol tank. A fourth valve and a third flow meter are connected in series between the water tank and the methanol reformer. A second valve and a first flow meter are connected in series between the methanol tank and the methanol reformer. The methanol tank is connected to the methanol fuel engine through the first valve. A third valve and a second flow meter are connected in series between the methanol tank and the plasma methanol cracker. The first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter are all electrically connected to the controller. The controller is used to execute the method described in any embodiment of this specification.

[0016] Fifthly, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to perform the methods described in any embodiment of the present invention.

[0017] This invention provides a control method and apparatus for a methanol fuel engine reforming auxiliary system. First, the invention obtains the load output demand of the methanol fuel engine by reading the ECU (Electronic Control Unit). Then, based on the load output demand, it determines the operating mode of the methanol fuel engine reforming auxiliary system. According to the specific operating mode, it controls the first valve, second valve, third valve, fourth valve, first flow meter, second flow meter, and third flow meter accordingly. Thus, this invention can improve the energy utilization rate of the methanol fuel engine. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A flowchart of a control method for a methanol fuel engine reforming auxiliary system according to one embodiment is shown;

[0020] Figure 2 This is a hardware architecture diagram of an electronic device provided in an embodiment of the present invention;

[0021] Figure 3A structural diagram of the control device for a methanol fuel engine reforming auxiliary system according to one embodiment is shown;

[0022] Figure 4 A structural diagram of a methanol fuel engine reforming auxiliary system according to one embodiment is shown.

[0023] Figure label:

[0024] 1-1 Methanol Tank;

[0025] 1-2 water tanks;

[0026] 2-1 First valve;

[0027] 2-2 Second valve;

[0028] 2-3 Third valve;

[0029] 2-4 Fourth valve;

[0030] 3-1 First flow meter;

[0031] 3-2 Second flow meter;

[0032] 3-3 Third Flow Controller;

[0033] 4. Methanol pumps;

[0034] 5. Methanol overflow valve;

[0035] 6. Methanol reformer;

[0036] 7. Plasma methanol pyrolysis unit;

[0037] 8. Air filters;

[0038] 9. Turbocharger;

[0039] 10. Intercooler;

[0040] 11. Reformer-air mixer;

[0041] 12 manifold alcohol injectors;

[0042] 13. Methanol fuel engine. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0044] Please refer to Figure 1 This invention provides a control method for a methanol fuel engine reforming auxiliary system, applied to a controller of the auxiliary system. The auxiliary system includes a controller, a water tank 1-2, a methanol reformer 6, and a methanol tank 1-1, a methanol fuel engine 13, a reforming gas-air mixer 11, and a plasma methanol pyrolyzer 7 connected in sequence. The plasma methanol pyrolyzer 7 is connected to the methanol tank 1-1. A fourth valve 2-4 and a third flow meter 3-3 are connected in series between the water tank 1-2 and the methanol reformer 6. A second valve 2-2 and a first flow meter 3-1 are connected in series between the methanol tank 1-1 and the methanol reformer 6. The methanol tank 1-1 is connected to the methanol fuel engine 13 through the first valve 2-1. A third valve 2-3 and a second flow meter 3-2 are connected in series between the methanol tank 1-1 and the plasma methanol pyrolyzer 7. The first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3 are all electrically connected to the controller. The method includes:

[0045] Step 100: Obtain the load output requirements of methanol fuel engine 13;

[0046] Step 102: Determine the operating mode of the methanol fuel engine reforming auxiliary system based on load output requirements;

[0047] Step 104: Based on the working mode, control the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3.

[0048] In this embodiment, the present invention first obtains the load output demand of the methanol fuel engine 13 by reading the ECU (electronic control unit) of the methanol fuel engine 13, and then determines the working mode of the methanol fuel engine reforming auxiliary system according to the load output demand. According to the specific working mode, the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3 are controlled accordingly. In this way, the present invention can improve the energy utilization rate of the methanol fuel engine 13.

[0049] In one embodiment of the present invention, the operating modes include low-load startup mode, medium-low load output mode, and high-load output mode.

[0050] In one embodiment of the present invention, the operating mode of the methanol fuel engine reforming auxiliary system is determined based on load output requirements, including:

[0051] When the load output demand is less than the first preset output power, the working mode is determined to be low load start mode.

[0052] When the load output demand is greater than the first preset output power and less than the second preset output power, the working mode is determined to be the medium-low load output mode.

[0053] When the load output demand exceeds the second preset output power, the working mode is determined to be the high load output mode.

[0054] In this embodiment, when the load output demand of the methanol fuel engine 13 is less than the first preset output power, it is determined that the current operating mode is low-load start mode, which corresponds to engine cold start, idling, or light-load operation scenarios. When the load output demand is greater than the first preset output power but less than the second preset output power, the operating mode is determined to be low-load start mode, which focuses on balancing fuel economy and power response speed. When the load output demand is greater than the second preset output power, the operating mode is determined to be high-load output mode, which needs to meet the energy supply requirements when the engine outputs high power. The first preset output power can be set to 10% of the rated power of the methanol fuel engine 13, or 50% of the rated power of the methanol fuel engine 13.

[0055] In one embodiment of the present invention, based on the operating mode, control is performed on the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3, including:

[0056] When the operating mode is low load start mode, control the second valve 2-2, the fourth valve 2-4, the first flow meter 3-1 and the third flow meter 3-3 to close, and control the first valve 2-1, the third valve 2-3 and the second flow meter 3-2 to open.

[0057] In this embodiment, when the operating mode is low to medium load output mode (engine cold start), the second valve 2-2, the fourth valve 2-4, the first flow meter 3-1, and the third flow meter 3-3 are closed, while the first valve 2-1, the third valve 2-3, and the second flow meter 3-2 are opened. Figure 4 As shown, at this time, the working logic of the methanol fuel engine reforming auxiliary system is as follows: the methanol in methanol tank 1-1 is injected into the intake manifold through methanol pump 4, methanol overflow valve 5 and manifold injector 12 and enters the cylinder of methanol fuel engine 13; at the same time, the methanol in methanol tank 1-1 enters the plasma methanol cracker 7 through the third valve 2-3 and the second flow meter 3-2, and the methanol is rapidly cracked by plasma to produce hydrogen-rich cracked gas. After being fully mixed with the air that has passed through air filter 8, turbocharger 9 and intercooler 10 by reformer-air mixer 11, it is delivered to the cylinder of methanol fuel engine 13 to realize the combustion of hydrogen-rich cracked gas and complete the cold start operation of methanol fuel engine 13.

[0058] In one embodiment of the present invention, based on the operating mode, control is performed on the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3, including:

[0059] When the operating mode is low to medium load output mode, control the third valve 2-3 and the second flow meter 3-2 to close; control the first valve 2-1, the second valve 2-2, the fourth valve 2-4, the first flow meter 3-1 and the third flow meter 3-3 to open, and control the flow of the first flow meter 3-1 and the third flow meter 3-3 to deliver fluid to the methanol reformer 6 according to the first water-methanol ratio.

[0060] In this embodiment, when the operating mode is low to medium load output mode, the third valve 2-3 and the second flow meter 3-2 are closed; the first valve 2-1, the second valve 2-2, the fourth valve 2-4, the first flow meter 3-1, and the third flow meter 3-3 are opened, and the flow rates of the first flow meter 3-1 and the third flow meter 3-3 are controlled to supply fluid to the methanol reformer 6 according to the first water-to-methanol ratio. Figure 4 As shown, at this time, the working logic of the methanol fuel engine reforming auxiliary system is as follows: the plasma methanol cracker 7 stops operating; the methanol in methanol tank 1-1 is mixed with water through the second valve 2-2, the first flow meter 3-1, and the third flow meter 3-3; and the first water-methanol ratio is controlled according to the load power output, and then delivered to the methanol reformer 6. The methanol is reformed using the waste heat of the engine exhaust to produce hydrogen-rich reformed gas. This reformed gas is then fully mixed with air that has passed through the air filter 8, turbocharger 9, and intercooler 10 by the reformed gas-air mixer 11 to form a hydrogen-rich mixture, which is then delivered to the intake manifold and enters the cylinder of the methanol fuel engine 13. This hydrogen-rich reformed gas assists combustion, effectively solving the problem of incomplete combustion under low engine load and improving engine operating stability and energy utilization. The first water-methanol ratio can be set between 1.2 and 1.4.

[0061] In one embodiment of the present invention, based on the operating mode, control is performed on the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3, including:

[0062] When the working mode is high load output mode, control the opening of the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3, and control the flow of the first flow meter 3-1 and the third flow meter 3-3 to deliver fluid to the methanol reformer 6 according to the second water-methanol ratio.

[0063] In this embodiment, when the operating mode is high-load output mode, the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3 are controlled to open, and the flow rates of the first flow meter 3-1 and the third flow meter 3-3 are controlled to deliver fluid to the methanol reformer 6 according to the second water-to-methanol ratio. Figure 4 As shown, at this time, the working logic of the methanol fuel engine reforming auxiliary system is as follows: the methanol fuel engine 13 is fed to the plasma methanol cracker 7 via the third valve 2-3 and the second flow meter 3-2. The plasma rapidly starts and cracks the methanol to produce hydrogen-rich cracked gas, which is then fed to the reformed gas-air mixer 11. At the same time, the amount of water fed to the methanol reformer 6 via the third flow meter 3-3 increases. The hydrogen-rich reformed gas and water vapor produced by the methanol reformer 6 are fed to the reformed gas-air mixer 11 via the plasma methanol cracker 7. The higher-temperature hydrogen-rich reformed gas can be preheated before entering the plasma. Methanol from methanol cracker 7 reduces plasma energy consumption, while water vapor lowers the catalyst surface temperature in the plasma methanol cracker, reducing local overheating and sintering of the catalyst. Air passing through air filter 8, turbocharger 9, and intercooler 10 is thoroughly mixed with hydrogen-rich gas from reformer-air mixer 11 before being delivered to the cylinder of methanol fuel engine 13. This achieves a conversion from hydrogen-assisted combustion to hydrogen-blended combustion, effectively improving engine economy. Furthermore, the hydrogen-rich gas produced by methanol reformer 6 contains carbon dioxide, increasing the in-cylinder EGR rate and reducing knocking tendency, thus improving the energy utilization rate of methanol fuel engine 13. The second water-to-methanol ratio can be set between 1.5 and 1.7.

[0064] In this embodiment, the water-to-methanol ratio needs to be carefully controlled in the methanol fuel engine reforming auxiliary system. On one hand, this effectively utilizes the waste heat from engine exhaust to produce hydrogen; on the other hand, when operating in conjunction with the plasma methanol cracking auxiliary system, excess water can effectively reduce the surface temperature of the plasma cracking catalyst, minimizing carbon buildup on the catalyst surface. Under low-temperature start-up conditions, only the plasma methanol cracking auxiliary system operates, producing hydrogen-rich gas for combustion. Under medium-load power requirements, with the water-to-methanol ratio controlled between 1.2 and 1.4, the waste heat from engine exhaust can meet the temperature requirements for producing hydrogen-rich gas in the methanol steam reforming auxiliary system, resulting in good hydrogen production. Under high-load power requirements, the water-to-methanol ratio is controlled between 1.5 and 1.7. Although excessive water can affect the hydrogen production efficiency of the methanol steam reforming auxiliary system, the impact is limited. Simultaneously, the operation of the plasma methanol cracking auxiliary system can increase hydrogen production, and excess water is beneficial to the cracking catalyst, reducing localized sintering and extending the catalyst's lifespan.

[0065] like Figure 4As shown, in this embodiment, methanol tank 1-1 is used for methanol storage; water tank 1-2 is used to provide water for methanol vapor reforming; first valve 2-1 is used to open and close the methanol supply to the engine; second valve 2-2 is used to supply methanol to the methanol reformer 6; third valve 2-3 is used to open and close the methanol supply to the methanol cracker; fourth valve 2-4 is used to supply water to the methanol reformer 6; first flow meter 3-1 is used to control the methanol flow rate to the methanol reformer 6; second flow meter 3-2 is used to control the methanol flow rate to the methanol cracker; and third flow meter 3-3 is used to control the flow rate of methanol to the methanol reformer 6. Methanol pump 4 (for supplying methanol to methanol reformer 6): used to deliver methanol to methanol fuel engine 13; Methanol overflow valve 5: used to prevent damage to the pipeline supplying methanol to the engine due to excessive pressure; Methanol reformer 6: used for methanol steam reforming to produce hydrogen-rich gas; Plasma methanol cracker 7: used for methanol cracking to produce hydrogen-rich gas; Air filter 8: used for engine intake air filtration; Turbocharger 9: used for engine intake air pressurization; Intercooler 10: used for engine intake air cooling; Reformer-air mixer 11: used for mixing engine intake air with hydrogen-rich gas; Manifold injector 12: used for methanol injection into the engine intake manifold; Methanol fuel engine 13: used for methanol fuel power output.

[0066] like Figure 2 , Figure 3 As shown, this embodiment of the invention provides a control device for a methanol fuel engine reforming auxiliary system. The device embodiment can be implemented through software, hardware, or a combination of both. From a hardware perspective, as... Figure 2 The diagram shown is a hardware architecture diagram of the electronic device containing the control device of a methanol fuel engine reforming auxiliary system according to an embodiment of the present invention. Except for... Figure 2 In addition to the processor, memory, network interface, and non-volatile memory shown, the electronic device in the embodiment may also include other hardware, such as a forwarding chip responsible for processing packets. Taking software implementation as an example, such as... Figure 3 As shown, a device in a logical sense is formed by the CPU of the electronic device in which it is located reading the corresponding computer program from the non-volatile memory into the memory for execution.

[0067] like Figure 3As shown in this embodiment, a control device for a methanol fuel engine reforming auxiliary system is provided. The auxiliary system includes a controller, a water tank 1-2, a methanol reformer 6, and a methanol tank 1-1, a methanol fuel engine 13, a reforming gas-air mixer 11, and a plasma methanol cracker 7 connected in sequence. The plasma methanol cracker 7 is connected to the methanol tank 1-1. A fourth valve 2-4 and a third flow meter 3-3 are connected in series between the water tank 1-2 and the methanol reformer 6. A second valve 2-2 and a first flow meter 3-1 are connected in series between the methanol tank 1-1 and the methanol reformer 6. The methanol tank 1-1 is connected to the methanol fuel engine 13 through the first valve 2-1. A third valve 2-3 and a second flow meter 3-2 are connected in series between the methanol tank 1-1 and the plasma methanol cracker 7. The first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3 are all electrically connected to the controller.

[0068] The acquisition module 300 is used to acquire the load output requirements of the methanol fuel engine 13;

[0069] The first data processing module 302 is used to determine the working mode of the methanol fuel engine reforming auxiliary system based on the load output demand.

[0070] The second data processing module 304 is used to control the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3 based on the working mode.

[0071] In one embodiment of the present invention, the operating modes include low-load startup mode, medium-low load output mode, and high-load output mode.

[0072] In one embodiment of the present invention, the first data processing module 302 is configured to perform the following operations:

[0073] When the load output demand is less than the first preset output power, the working mode is determined to be the low load start mode.

[0074] When the load output demand is greater than the first preset output power and less than the second preset output power, the working mode is determined to be the medium-low load output mode.

[0075] When the load output demand is greater than the second preset output power, the working mode is determined to be the high load output mode.

[0076] In one embodiment of the present invention, the second data processing module 304 is configured to perform the following operations:

[0077] When the operating mode is the low-load start-up mode, the second valve 2-2, the fourth valve 2-4, the first flow meter 3-1 and the third flow meter 3-3 are controlled to close, and the first valve 2-1, the third valve 2-3 and the second flow meter 3-2 are controlled to open.

[0078] In one embodiment of the present invention, the second data processing module 304 is configured to perform the following operations:

[0079] When the operating mode is the low-to-medium load output mode, the third valve 2-3 and the second flow meter 3-2 are closed; the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1 and the third flow meter 3-3 are opened, and the flow rates of the first flow meter 3-1 and the third flow meter 3-3 are controlled to supply fluid to the methanol reformer 6 according to the first water-to-methanol ratio.

[0080] In one embodiment of the present invention, the second data processing module 304 is configured to perform the following operations:

[0081] When the operating mode is the high-load output mode, the first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first flow meter 3-1, the second flow meter 3-2, and the third flow meter 3-3 are controlled to open, and the flow rates of the first flow meter 3-1 and the third flow meter 3-3 are controlled to deliver fluid to the methanol reformer 6 according to the second water-methanol ratio.

[0082] It is understood that the structures illustrated in the embodiments of the present invention do not constitute a specific limitation on the control device of a methanol fuel engine reforming auxiliary system. In other embodiments of the present invention, the control device of a methanol fuel engine reforming auxiliary system may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0083] The information interaction and execution process between the modules in the above-mentioned device are based on the same concept as the method embodiment of the present invention, and the specific details can be found in the description of the method embodiment of the present invention, and will not be repeated here.

[0084] like Figure 4As shown in the figure, this embodiment of the invention also provides a methanol fuel engine reforming auxiliary system. The auxiliary system includes a controller, a water tank 1-2, a methanol reformer 6, and a methanol tank 1-1, a methanol fuel engine 13, a reforming gas-air mixer 11, and a plasma methanol cracker 7 connected in sequence. The plasma methanol cracker 7 is connected to the methanol tank 1-1. A fourth valve 2-4 and a third flow meter 3-3 are connected in series between the water tank 1-2 and the methanol reformer 6. A second valve 2-2 is connected in series between the methanol tank 1-1 and the methanol reformer 6. The methanol tank 1-1 is connected to the methanol fuel engine 13 via a first valve 2-1 and a second valve 3-2 connected in series between the methanol tank 1-1 and the plasma methanol cracker 7. The first valve 2-1, the second valve 2-2, the third valve 2-3, the fourth valve 2-4, the first valve 3-1, the second valve 3-2, and the third valve 3-3 are all electrically connected to the controller. The controller is used to execute the executable code to achieve the combination... Figure 1 The method described.

[0085] This invention also provides an electronic device, including a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements a control method for a methanol fuel engine reforming auxiliary system according to any embodiment of this invention.

[0086] This invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, causes the processor to perform a control method for a methanol fuel engine reforming auxiliary system according to any embodiment of this invention.

[0087] Specifically, a system or apparatus equipped with a storage medium may be provided, on which software program code implementing the functions of any of the embodiments described above is stored, and the computer (or CPU or MPU) of the system or apparatus may read and execute the program code stored in the storage medium.

[0088] In this case, the program code read from the storage medium can itself implement the function of any of the above embodiments, and therefore the program code and the storage medium storing the program code constitute part of the present invention.

[0089] Storage media embodiments for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), magnetic tapes, non-volatile memory cards, and ROMs. Alternatively, program code can be downloaded from a server computer via a communication network.

[0090] Furthermore, it should be clear that not only can the program code read by the computer be executed, but also the operating system or other components operating on the computer can be instructed based on the program code to perform some or all of the actual operations, thereby realizing the function of any of the embodiments described above.

[0091] Furthermore, it is understood that the program code read from the storage medium is written to the memory set in the expansion board inserted into the computer or to the memory set in the expansion module connected to the computer. Then, based on the instructions of the program code, the CPU or other components installed on the expansion board or expansion module execute some and all of the actual operations, thereby realizing the functions of any of the embodiments described above.

[0092] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0093] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media that can store program code, such as ROM, RAM, magnetic disk, or optical disk.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for a methanol fuel engine reforming auxiliary system, characterized in that, A controller is applied to the auxiliary system, the auxiliary system including the controller, a water tank, a methanol reformer, and a methanol tank, a plasma methanol cracker, a reforming gas-air mixer, and a methanol fuel engine connected in sequence. The plasma methanol cracker is connected to the methanol tank. A fourth valve and a third flow meter are connected in series between the water tank and the methanol reformer. A second valve and a first flow meter are connected in series between the methanol tank and the methanol reformer. The methanol tank is connected to the methanol fuel engine through the first valve. A third valve and a second flow meter are connected in series between the methanol tank and the plasma methanol cracker. The first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter are all electrically connected to the controller. The method includes: Obtain the load output requirements of the methanol fuel engine; Based on the aforementioned load output requirements, the operating mode of the methanol fuel engine reforming auxiliary system is determined. Based on the aforementioned operating mode, the first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter are controlled; the operating mode includes a low-load start-up mode, a medium-low load output mode, and a high-load output mode; The process of determining the operating mode of the methanol fuel engine reforming auxiliary system based on the load output demand includes: When the load output demand is less than the first preset output power, the working mode is determined to be the low load start mode. When the load output demand is greater than the first preset output power and less than the second preset output power, the working mode is determined to be the medium-low load output mode. When the load output demand is greater than the second preset output power, the working mode is determined to be the high load output mode; When the operating mode is the low-load start-up mode, the second valve, the fourth valve, the first flow meter, and the third flow meter are controlled to close, and the first valve, the third valve, and the second flow meter are controlled to open. When the operating mode is the low-to-medium load output mode, the third valve and the second flow meter are controlled to close; the second valve, the third valve, the fourth valve, the first flow meter, and the third flow meter are controlled to open, and the flow rates of the first flow meter and the third flow meter are controlled to deliver fluid to the methanol reformer according to the first water-to-methanol ratio; When the operating mode is the high-load output mode, the first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter are controlled to open, and the flow rates of the first flow meter and the third flow meter are controlled to deliver fluid to the methanol reformer according to the second water-methanol ratio.

2. A control device for a methanol fuel engine reforming auxiliary system, characterized in that, For performing the method as described in claim 1, the auxiliary system includes a controller, a water tank, a methanol reformer, and a methanol tank, a plasma methanol cracker, a reforming gas-air mixer, and a methanol fuel engine connected in sequence. The plasma methanol cracker is connected to the methanol tank. A fourth valve and a third flow meter are connected in series between the water tank and the methanol reformer. A second valve and a first flow meter are connected in series between the methanol tank and the methanol reformer. The methanol tank is connected to the methanol fuel engine via the first valve. A third valve and a second flow meter are connected in series between the methanol tank and the plasma methanol cracker. The first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter are all electrically connected to the controller. The device includes: The acquisition module is used to acquire the load output requirements of the methanol fuel engine; The first data processing module is used to determine the operating mode of the methanol fuel engine reforming auxiliary system based on the load output demand. The second data processing module is used to control the first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter based on the operating mode.

3. An electronic device, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method as described in claim 1.

4. A methanol fuel engine reforming auxiliary system, characterized in that, The auxiliary system includes a controller, a water tank, a methanol reformer, and a methanol tank, a plasma methanol cracker, a reformed gas-air mixer, and a methanol fuel engine connected in sequence. The plasma methanol cracker is connected to the methanol tank. A fourth valve and a third flow meter are connected in series between the water tank and the methanol reformer. A second valve and a first flow meter are connected in series between the methanol tank and the methanol reformer. The methanol tank is connected to the methanol fuel engine through the first valve. A third valve and a second flow meter are connected in series between the methanol tank and the plasma methanol cracker. The first valve, the second valve, the third valve, the fourth valve, the first flow meter, the second flow meter, and the third flow meter are all electrically connected to the controller. The controller is used to execute the method as described in claim 1.

5. A computer-readable storage medium, characterized in that, It stores a computer program that, when executed in a computer, causes the computer to perform the method of claim 1.

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