Methanol engine starting method, device, heating equipment and computer medium

Abstract

The present application discloses a methanol engine starting method, device, heating equipment and computer medium, and relates to the field of automobile technology. The methanol engine starting method of the present application is applied to a heating equipment, and the heating equipment heats the methanol engine connected to itself by igniting methanol fuel, and detects the methanol engine to obtain the first engine water temperature of the methanol engine, and determines whether the first engine water temperature is less than the first temperature threshold; if it is determined that the first engine water temperature is less than the first temperature threshold, the methanol engine is heated, and the methanol engine is detected to obtain the second engine water temperature of the methanol engine; when the second engine water temperature is greater than or equal to the second temperature threshold, the methanol engine is controlled to spray methanol fuel to complete the start. The use of the present application can enable the methanol engine to complete the start-up in a low temperature environment by relying only on methanol fuel.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a method, device, heating equipment and computer-readable storage medium for starting a methanol engine. Background Art

[0002] With the continuous development of new energy technologies, methanol fuel has gradually become the main fuel used in new energy vehicles due to its rich resources, good power performance, high thermal efficiency, low energy consumption, and good emissions. However, once a new energy vehicle starts a methanol engine in a low-temperature environment below 0°C, the methanol fuel injected into the methanol engine will not be completely volatilized due to its large latent heat of vaporization and poor volatility in a low-temperature environment, which will lead to the methanol engine being prone to start failure.

[0003] In related technologies, when a methanol engine is started in a low-temperature environment, the methanol engine often first injects part of the gasoline fuel to complete the startup, thereby increasing the engine water temperature, and then switches from gasoline fuel to methanol fuel when the engine water temperature reaches a preset temperature threshold. In this way, the methanol engine can ensure that the injected methanol fuel can be completely vaporized.

[0004] However, using the above method to start the methanol engine in a low-temperature environment requires technicians to add an additional gasoline fuel supply system to the methanol engine. This will greatly increase the purchase cost of new energy vehicles and the emissions of new energy vehicles will easily exceed the standard. Summary of the invention

[0005] The main purpose of the present application is to provide a methanol engine starting method, device, heating equipment and computer-readable storage medium, aiming to enable the heating equipment to heat the methanol engine, so that the methanol engine can be started in a low temperature environment only by injecting methanol fuel.

[0006] To achieve the above object, the present application provides a methanol engine starting method, which is applied to a heating device, wherein the heating device heats a methanol engine connected to the heating device by igniting methanol fuel, and the methanol engine starting method comprises the following steps:

[0007] Detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold;

[0008] If it is determined that the first engine water temperature is less than the first temperature threshold, heating the methanol engine and detecting the methanol engine to obtain a second engine water temperature of the methanol engine;

[0009] When the second engine water temperature is greater than or equal to a second temperature threshold, the methanol engine is controlled to inject methanol fuel to complete starting, wherein the second temperature threshold is greater than the first temperature threshold.

[0010] Furthermore, the heating device comprises: a methanol ignition unit, and the step of heating the methanol engine comprises:

[0011] Acquire methanol fuel, and generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit;

[0012] Low-temperature engine circulating water in the methanol engine is obtained, and the methanol engine is heated by the heat generated by the mixed fuel gas and the low-temperature engine circulating water.

[0013] Furthermore, the heating device further comprises: a methanol delivery unit and an air intake unit, wherein the methanol delivery unit is connected to the methanol ignition unit, and the methanol ignition unit is connected to the air intake unit;

[0014] The step of generating a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit comprises:

[0015] Acquiring a first control signal;

[0016] The methanol delivery unit and the air intake unit are controlled based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit.

[0017] Further, the methanol ignition unit comprises: a methanol injector oil rail, an electronically controlled methanol injector and a pre-combustion chamber, wherein the methanol injector oil rail is connected to the electronically controlled methanol injector, and the electronically controlled methanol injector is connected to the pre-combustion chamber;

[0018] The step of controlling the methanol delivery unit and the air intake unit based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit includes:

[0019] Based on the first control signal, the methanol delivery unit is controlled to input the methanol fuel into the methanol injector rail, and based on the first control signal, the air intake unit is controlled to input air into the pre-combustion chamber;

[0020] A second control signal is obtained, and based on the second control signal, the electronically controlled methanol injector is controlled to inject the methanol fuel into the pre-combustion chamber, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air.

[0021] Furthermore, the heating device further comprises: a heat exchange unit, the heat exchange unit being connected to the methanol ignition unit;

[0022] The step of obtaining low-temperature engine circulating water in the methanol engine comprises:

[0023] acquiring a third control signal;

[0024] The heat exchange unit is controlled based on the third control signal so that low-temperature engine circulating water in the methanol engine enters the heat exchange unit.

[0025] Further, after the step of controlling the methanol engine to inject methanol fuel to complete startup, the method further includes:

[0026] detecting the methanol engine to obtain a third engine water temperature of the methanol engine, and determining whether the third engine water temperature is greater than or equal to a third temperature threshold;

[0027] If it is determined that the third engine water temperature is greater than or equal to the third temperature threshold, heating of the methanol engine is stopped, wherein the third temperature threshold is greater than the second temperature threshold.

[0028] Further, after the step of controlling the methanol engine to inject methanol fuel to complete startup, the method further includes:

[0029] Detecting the methanol engine to obtain a real-time methanol concentration value of the methanol engine, and determining whether the real-time methanol concentration value is greater than or equal to a methanol concentration threshold;

[0030] If it is determined that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, a preset reminder message is output and heating of the methanol engine is stopped.

[0031] In addition, to achieve the above-mentioned purpose, the present application also provides a methanol engine starting device, which is applied to a heating device, and the heating device heats the methanol engine connected to itself by igniting methanol fuel, and the device comprises:

[0032] a first detection module, detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold;

[0033] a second detection module, configured to heat the methanol engine and detect the methanol engine to obtain a second engine water temperature of the methanol engine if it is determined that the first engine water temperature is less than the first temperature threshold;

[0034] The engine starting module is used to control the methanol engine to inject methanol fuel to complete starting when the second engine water temperature is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold.

[0035] In addition, to achieve the above-mentioned purpose, the present application also provides a heating device, which includes: a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the computer program is executed by the processor, the steps of the methanol engine starting method as described above are implemented.

[0036] In addition, to achieve the above-mentioned purpose, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the methanol engine starting method as described above are implemented.

[0037] The methanol engine starting method, device, heating device and computer-readable storage medium provided in the embodiments of the present application are applied to a heating device, wherein the heating device heats a methanol engine connected to itself by igniting methanol fuel; a first engine water temperature of the methanol engine is obtained by detecting the methanol engine, and it is determined whether the first engine water temperature is less than a first temperature threshold; if it is determined that the first engine water temperature is less than the first temperature threshold, the methanol engine is heated, and the methanol engine is detected to obtain a second engine water temperature of the methanol engine; when the second engine water temperature is greater than or equal to a second temperature threshold, the methanol engine is controlled to inject methanol fuel to complete starting. The second temperature threshold is greater than the first temperature threshold.

[0038] In this embodiment, when the methanol engine is started in a low temperature environment, the heating device first detects the methanol engine connected to itself to obtain the first engine water temperature of the methanol engine when it is not started, and determines whether the first engine water temperature is less than a preset first temperature threshold. Thereafter, if the heating device determines that the first engine water temperature is less than the first temperature threshold, the methanol engine is heated. At the same time, during the process of heating the methanol engine, the heating device detects the methanol engine again to obtain the second engine water temperature of the methanol engine. Finally, when the heating device determines that the second engine water temperature is greater than the second temperature threshold, the heating device controls the methanol engine to inject methanol fuel to complete the startup.

[0039] In this way, the present application solves the technical problem in the related technology that technicians need to spend a lot of cost to add an additional gasoline fuel supply system in the methanol engine to ensure that when the methanol engine is started in a low-temperature environment, it can complete the start-up by first injecting part of the gasoline fuel. That is, the present application ignites the methanol fuel through a heating device to generate heat, and uses the heat to heat the engine circulating water of the methanol engine to increase the temperature of the methanol engine, so that when the methanol fuel is injected into the methanol engine in a low-temperature environment, the methanol fuel can also be fully volatilized to form a mixed fuel gas, thereby allowing the methanol engine to complete the start-up in a low-temperature environment relying solely on methanol fuel. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of a heating device in a hardware operating environment involved in an embodiment of the present application;

[0041] Figure 2 This is a flow chart of a first embodiment of a method for starting a methanol engine according to the present application;

[0042] Figure 3 This is a schematic diagram of the structural connection of a heating device involved in an embodiment of a method for starting a methanol engine of the present application;

[0043] Figure 4 A detailed structural diagram of a heating device involved in an embodiment of a method for starting a methanol engine of the present application;

[0044] Figure 5 This is a schematic diagram of a single-hole injection structure involved in an embodiment of a method for starting a methanol engine of the present application;

[0045] Figure 6 This is a schematic diagram of a multi-hole injection structure involved in an embodiment of a method for starting a methanol engine of the present application;

[0046] Figure 7 This is a schematic diagram of the ignition electrode structure involved in an embodiment of the methanol engine starting method of the present application;

[0047] Figure 8 This is a flow chart of a preferred embodiment of a method for starting a methanol engine of the present application;

[0048] Fig. 9 This is a schematic diagram of the functional modules involved in an embodiment of a starting device for a methanol engine of the present application.

[0049] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0050] Description of Figure Numbers

[0051] 1. Methanol tank; 2. Electric infusion pump; 3. Methanol filter; 4. Controller; 5. Methanol injector oil rail; 6. Electronically controlled methanol injector; 7. Ignition electrode; 8. Methanol spray; 9. Pre-combustion chamber; 10. Main combustion chamber; 11. Heat exchange medium channel; 12. Main combustion chamber shell; 13. Heat exchange shell; 14. Exhaust channel; 15. Muffler; 16. Heat exchange plate; 17. Heat exchange medium inlet; 18. Heat exchange medium outlet; 19. Electronic water pump; 20. Electronic water pump water inlet; 21. Drain pipe; 22. Air intake filter; 23. Air intake fan; 24. Methanol vapor concentration sensor; 25. High temperature alarm sensor; 26. Methanol tank shell; 27. Liquid level gauge; 28. Oil suction filter; 29. ​​Oil filling hole; 30. Heat exchange unit; 31. Methanol ignition unit; 32. Air intake unit; 33. Methanol delivery unit. DETAILED DESCRIPTION

[0052] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0053] Reference Figure 1 , Figure 1 This is a schematic diagram of the heating device structure of the hardware operating environment involved in the embodiment of the present application.

[0054] It should be noted that the heating device of the embodiment of the present application can be a heating device for executing the starting method of the methanol engine of the present application. The heating device can specifically be a heating device that is internally configured with a methanol delivery unit, a methanol ignition unit, a heat exchange unit and an air intake unit, and is itself connected to the methanol engine.

[0055] like Figure 1 As shown, the heating device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0056] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the heating device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0057] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a data storage module, a network communication module, a user interface module and a computer program.

[0058] exist Figure 1 In the heating device shown, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the heating device of the present application can be set in the heating device, and the heating device calls the computer program stored in the memory 1005 through the processor 1001, and executes the various embodiments provided in the embodiments of the present application.

[0059] Based on the above-mentioned heating device, the overall concept of the methanol engine starting method of the present application is provided.

[0060] With the continuous development of new energy technologies, methanol fuel has gradually become the main fuel used in new energy vehicles due to its rich resources, good power performance, high thermal efficiency, low energy consumption, and good emissions. However, once a new energy vehicle starts a methanol engine in a low-temperature environment below 0°C, the methanol fuel injected into the methanol engine will not be completely volatilized due to its large latent heat of vaporization and poor volatility in a low-temperature environment, which will lead to the methanol engine being prone to start failure.

[0061] In related technologies, when a methanol engine is started in a low-temperature environment, the methanol engine often first injects part of the gasoline fuel to complete the startup, thereby increasing the engine water temperature, and then switches from gasoline fuel to methanol fuel when the engine water temperature reaches a preset temperature threshold. In this way, the methanol engine can ensure that the injected methanol fuel can be completely vaporized.

[0062] However, using the above method to start the methanol engine in a low-temperature environment requires technicians to add an additional gasoline fuel supply system to the methanol engine. This will greatly increase the purchase cost of new energy vehicles and the emissions of new energy vehicles will easily exceed the standard.

[0063] In view of the above phenomenon, the present application proposes a methanol engine starting method, which is applied to a heating device, and the heating device is connected to the methanol engine. The methanol engine starting method includes the following steps: detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and judging whether the first engine water temperature is less than a first temperature threshold; if it is judged that the first engine water temperature is less than the first temperature threshold, heating the methanol engine, and detecting the methanol engine to obtain a second engine water temperature of the methanol engine; when the second engine water temperature is greater than or equal to the second temperature threshold, controlling the methanol engine to inject methanol fuel to complete the starting, wherein the second temperature threshold is greater than the first temperature threshold.

[0064] In this way, the present application solves the technical problem in the related technology that technicians need to spend a lot of cost to add an additional gasoline fuel supply system in the methanol engine to ensure that when the methanol engine is started in a low-temperature environment, it can complete the start-up by first injecting part of the gasoline fuel. That is, the present application ignites the methanol fuel through a heating device to generate heat, and uses the heat to heat the engine circulating water of the methanol engine to increase the temperature of the methanol engine, so that when the methanol fuel is injected into the methanol engine in a low-temperature environment, the methanol fuel can also be fully volatilized to form a mixed fuel gas, thereby allowing the methanol engine to complete the start-up in a low-temperature environment relying solely on methanol fuel.

[0065] Based on the above-mentioned heating device and the overall concept of the methanol engine starting method of the present application, various embodiments of the methanol engine starting method of the present application are further proposed.

[0066] Please refer to Figure 2 , Figure 2 This is a flow chart of the first embodiment of the method for starting a methanol engine of the present application.

[0067] It should be understood that although a logical sequence is shown in the flow chart, in some cases, the methanol engine starting method of the present application may also perform the steps shown or described in a sequence different from that shown here.

[0068] The methanol engine starting method of the present application is applied to a heating device, wherein the heating device heats a methanol engine connected to the heating device by igniting methanol fuel;

[0069] like Figure 2 As shown, in this embodiment, the method for starting the methanol engine of the present application may include the following steps:

[0070] Step S10: detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold;

[0071] In this embodiment, when the methanol engine needs to be started in a low-temperature environment, the heating device first detects the methanol engine connected to itself, thereby obtaining the first engine water temperature of the methanol engine in an unstarted state, and determines whether the first engine water temperature is lower than the first temperature threshold preset by the technician.

[0072] Exemplarily, for example, when a methanol engine is started in a low temperature environment below 0°C, the heating device first calls the temperature sensor configured by itself to detect the methanol engine, thereby obtaining the first engine water temperature corresponding to the low-temperature engine circulating water in the methanol engine when the methanol engine is not started. At the same time, the heating device obtains the first temperature threshold T1 preset by the technician, and compares the first engine water temperature with the first temperature threshold T1 to determine whether the first engine water temperature is less than the first temperature threshold T1.

[0073] Step S20: if it is determined that the first engine water temperature is less than the first temperature threshold, heating the methanol engine and detecting the methanol engine to obtain a second engine water temperature of the methanol engine;

[0074] In this embodiment, if the heating device determines that the first engine water temperature is lower than the first temperature threshold, methanol fuel is obtained and ignited to generate heat, and the heating device heats the methanol engine with the heat. At the same time, the heating device detects the methanol engine again to obtain the second engine water temperature of the methanol engine during the heating process.

[0075] Exemplarily, for example, if the heating device determines that the first engine water temperature is less than the first temperature threshold T1, it determines that the methanol engine cannot complete the starting operation at the current temperature, and the heating device thereby obtains methanol fuel and ignites the methanol fuel to generate heat. The heating device then heats the low-temperature engine circulating water in the methanol engine based on the generated heat to increase the temperature of the methanol engine. At the same time, the heating device calls the above-mentioned temperature sensor to detect the methanol engine again, thereby obtaining the second engine water temperature corresponding to the engine circulating water in the methanol engine when the methanol engine is heated.

[0076] Further, in a feasible embodiment, the heating device includes: a methanol ignition unit, and the step of "heating the methanol engine" in the above step S20 may specifically include:

[0077] Step S201: obtaining methanol fuel, and generating a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit;

[0078] Step S202: obtaining low-temperature engine circulating water in the methanol engine, and heating the methanol engine by using the heat generated by the mixed fuel gas and the low-temperature engine circulating water;

[0079] In the present embodiment, when the heating device needs to heat the methanol engine, it first obtains methanol fuel through the methanol fuel supply system in the methanol engine, so that the methanol fuel generates a mixed fuel gas in the heating device, and the heating device ignites the mixed fuel gas to make the mixed fuel gas burn and generate heat. Thereafter, the heating device controls the low-temperature engine circulating water in the methanol engine to flow in through the pipeline, and heats the low-temperature engine circulating water by the heat generated during the combustion of the mixed fuel gas to increase the temperature of the low-temperature engine circulating water to generate high-temperature engine circulating water. The heating device then outputs the high-temperature engine circulating water to the methanol engine, thereby heating the methanol engine by the heat carried by the high-temperature engine circulating water to increase the temperature of the methanol engine.

[0080] For example, when the heating device needs to heat the methanol engine, the heating device first obtains the methanol fuel through the methanol fuel supply system in the methanol engine, and sprays the methanol fuel with high pressure atomization to make the methanol fuel fully mixed with the air to form a mixed fuel gas. The heating device then ignites the mixed fuel gas inside the device to make the mixed fuel gas burn stably and release heat. After that, the heating device controls the pipeline between itself and the methanol engine to make the low-temperature engine circulating water in the methanol engine flow into the heating device through the pipeline, and then obtains the heat generated in the heating device to become a high-temperature engine circulating water with a higher temperature. The heating device then controls the pipeline to make the high-temperature engine circulating water flow back into the methanol engine through the pipeline, so that the heat carried in the high-temperature engine circulating water increases the temperature of the methanol engine. In this way, the methanol engine can increase its own temperature through the engine circulating water carrying heat, so that the methanol fuel injected by itself can be fully volatilized, and the methanol engine can be started only by injecting methanol fuel in a low temperature environment.

[0081] Furthermore, in a feasible embodiment, the heating device further comprises: a methanol delivery unit and an air intake unit, wherein the methanol delivery unit is connected to the methanol ignition unit, and the methanol ignition unit is connected to the air intake unit;

[0082] The step of "generating a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit" in the above step S201 may specifically include:

[0083] Step S2011: obtaining a first control signal;

[0084] Step S2012: controlling the methanol delivery unit and the air intake unit based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit;

[0085] Please note that, please refer to Figure 3 , Figure 3 This is a schematic diagram of the structural connection of the heating device involved in the first embodiment of the methanol engine starting method of the present application, such as Figure 3 As shown, the heating device is provided with a heat exchange shell 13, and a heat exchange unit 30, an air intake unit 32 and a methanol ignition unit 31 are provided inside the heat exchange shell 13. The heat exchange unit 30 and the air intake unit 32 are respectively connected to the methanol ignition unit 31, and the methanol ignition unit 31 is connected to the methanol transport unit 33 through a pipeline.

[0086] For further information, please refer to Figure 4 , Figure 4 This is a detailed structural diagram of a heating device involved in an embodiment of a method for starting a methanol engine of the present application, such as Figure 4 As shown, the methanol delivery unit is equipped with: a methanol tank 1, an electric infusion pump 2 and a methanol filter 3, wherein the methanol 1 is connected to the electric infusion pump 2 through a pipeline, the electric infusion pump 2 is connected to the methanol filter 3 through a pipeline, and the methanol filter 3 is connected to the methanol ignition unit through a pipeline; similarly, Figure 4 As shown, the air intake unit includes: an air intake filter 22 and an air intake fan 23. The air intake filter 22 is arranged at the air inlet on the heat exchange shell of the heating equipment and is connected to the air intake fan 23. The air intake fan 23 can directly input the acquired air into the methanol ignition unit by rotating the fan to make the air flow.

[0087] In this embodiment, when the heating device needs to heat the methanol engine, it first controls the methanol fuel supply system in the methanol engine through the controller 4, so that the methanol fuel supply system inputs the methanol fuel into the methanol delivery unit configured by itself, and the heating device then obtains a first control signal. Thereafter, the heating device controls the methanol delivery unit based on the first control signal, so that the methanol delivery unit inputs the methanol fuel into the methanol ignition unit configured by the heating device itself. At the same time, the heating device controls the intake system configured by itself based on the first control signal, so that the intake system collects air and inputs the air into the methanol ignition unit, so that the methanol fuel is fully atomized and evenly mixed with the air to form a mixed fuel gas. The heating device then controls the methanol ignition unit to ignite the mixed fuel gas, so that the mixed fuel gas can stably burn in the heating device and generate heat.

[0088] For example, when the heating device needs to heat the methanol engine, the heating device first controls the methanol fuel supply system in the methanol engine, so that the methanol fuel supply system inputs the methanol fuel into the methanol tank 1 in the methanol delivery unit in the heating device through the pipeline between the heating device and the methanol engine. The heating device then obtains a first control signal, and controls the methanol delivery unit based on the first control signal, so that the methanol delivery unit inputs the methanol fuel contained in the methanol tank 1 into the electric infusion pump 2 in the methanol delivery unit, and inputs the methanol fuel into the methanol delivery unit through the electric infusion pump 2. The filter 3 is used to filter the methanol fuel filtered by the methanol filter 3, and then the methanol fuel filtered by the methanol filter 3 enters the methanol ignition unit through the pipeline between the methanol delivery unit and the methanol ignition unit. At the same time, the heating device controls the operation of the intake fan 23 in the intake unit based on the first control signal, so that the air passes through the intake filter 22 and the intake fan 23 in the intake unit and enters the methanol ignition unit, so that the methanol fuel is fully mixed with the air to form a mixed fuel gas in the methanol ignition unit. The heating device further controls the multiple ignition electrodes in the methanol ignition unit to ignite the mixed fuel gas, so that the mixed fuel gas burns stably in the heating device and generates heat. In this way, the heating device can stably obtain methanol fuel, and fully atomize the methanol fuel so that it is mixed with the obtained air to generate a mixed fuel gas, so that the mixed fuel gas is fully burned and provides sufficient heat.

[0089] It should be noted that, in this embodiment, the number of the plurality of ignition electrodes should be greater than or equal to 2. As shown in the figure, when the number of ignition electrodes is 4, the methanol ignition unit can simultaneously ignite the mixed fuel gas through ignition electrodes 7-1 to 7-4. In this way, by configuring a plurality of ignition electrodes, the methanol fuel can be ignited more efficiently.

[0090] In addition, in this embodiment and another embodiment, the methanol tank 1 is provided with a methanol tank housing 26, a liquid level gauge 27 and an oil suction filter 28. The liquid level gauge 27 and the oil suction filter 28 are provided on the methanol tank housing 26. At the same time, the liquid level gauge 27 is provided with an alarm function, so that the methanol tank 1 can store methanol fuel, and the methanol fuel reserve in the methanol tank 1 can be detected by the liquid level gauge 27, and then an alarm is issued when the methanol fuel reserve is insufficient. At the same time, in the process of the methanol tank 1 delivering the methanol fuel to the electric infusion pump, the filter 28 can prevent the methanol fuel from containing impurities, so as to improve the combustion efficiency of the methanol fuel. In addition, the methanol tank housing 1 is provided with an oil filling hole 29, so that the methanol fuel can be injected into the methanol tank 1 through the oil filling hole 29 to ensure the methanol fuel content in the methanol tank 1.

[0091] Further, in a feasible embodiment, the methanol ignition unit comprises: a methanol injector oil rail, an electronically controlled methanol injector and a pre-combustion chamber, the methanol injector oil rail is connected to the electronically controlled methanol injector, and the electronically controlled methanol injector is connected to the pre-combustion chamber;

[0092] The above step S2012 may specifically include:

[0093] Step S20121: controlling the methanol delivery unit to input the methanol fuel to the methanol injector rail based on the first control signal, and controlling the air intake unit to input air to the pre-combustion chamber based on the first control signal;

[0094] Step S20122: acquiring a second control signal, and controlling the electronically controlled methanol injector to inject the methanol fuel into the pre-combustion chamber based on the second control signal, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air;

[0095] In this embodiment, when the heating device needs to ignite the methanol fuel, the heating device controls the methanol delivery unit based on the obtained first control signal, so that the methanol delivery unit inputs the methanol fuel into the methanol injector rail in the methanol ignition unit. At the same time, the heating device controls the air intake unit based on the obtained first control signal, so that the air intake unit transports air into the methanol ignition unit. Thereafter, the heating device obtains a second control signal, and controls the methanol ignition unit based on the second control signal, so that the methanol injector rail in the methanol ignition unit builds up pressure for the input methanol fuel. The heating device further controls the methanol ignition unit based on the second control signal, so that the methanol injector rail injects the methanol fuel in a high-pressure state through the electrically controlled methanol injector connected to itself through a high-pressure atomization, so that the methanol fuel is fully volatilized in the pre-combustion chamber, and mixed with the air in the pre-combustion chamber to generate a mixed fuel gas.

[0096] For example, when the heating device needs to ignite the methanol fuel, the heating device first controls the methanol delivery unit based on the first control signal obtained, so that the methanol delivery unit inputs the methanol fuel contained in the methanol tank 1 into the electric infusion pump 2 in the methanol delivery unit, and inputs the methanol fuel into the methanol filter 3 in the methanol delivery unit through the electric infusion pump 2, and then the methanol fuel filtered by the methanol filter 3 enters the methanol ignition unit through the pipeline between the methanol delivery unit and the methanol ignition unit. At the same time, the heating device controls the operation of the intake fan 23 in the intake unit based on the first control signal to make Air enters the methanol ignition unit through the air intake filter 22 and the air intake fan 23 in the air intake unit. After that, the heating device determines the required methanol injection amount based on the heat to be generated, and generates a second control signal based on the methanol injection amount, so as to control the methanol ignition unit through the second control signal, so that the methanol injector rail 5 in the methanol ignition unit establishes a pressure value corresponding to the methanol injection amount for the methanol fuel input from the methanol tank 1. The heating device controls the electrically controlled methanol injector 6 connected to the methanol injector rail 5 based on the second control signal, so that the electrically controlled methanol injector 6 is configured as follows: Figure 5 Single or as shown Figure 6 The multiple injection holes shown in the figure continuously inject methanol fuel under high pressure, so that the methanol fuel enters the pre-combustion chamber 9 connected to the electronically controlled methanol injector 6 in an atomized form, so that the methanol spray 88 formed after the methanol fuel is atomized is mixed with air in the pre-combustion chamber 9 to form a mixed fuel gas. Finally, the heating device controls the methanol ignition unit to make the pre-combustion chamber 9 configured as shown in the figure below: Figure 7 The four ignition electrodes 7-1 to 7-4 shown generate sparks at the same time, thereby igniting the mixed fuel gas, and allowing the mixed fuel gas to burn stably in the pre-combustion chamber 9, thereby allowing the heat generated by the mixed fuel gas to enter the main combustion chamber 10. In this way, the heating device allows the methanol fuel to enter a high-pressure state through the methanol injector rail 5, and accurately injects the methanol fuel according to the methanol demand through the electronically controlled methanol injector 6, which can better atomize the methanol fuel and form a mixed fuel gas in the pre-combustion chamber, thereby allowing the methanol fuel to burn more stably and provide heat.

[0097] It should be noted that, in this embodiment and another embodiment, Figure 4As shown, the methanol ignition unit is also provided with an exhaust channel 14, a muffler 15 and a drain channel 21. Both the exhaust channel 14 and the drain channel 21 are arranged on the heat exchange shell 13 and are connected to the main combustion chamber 10. The muffler 15 is arranged on the drain channel 21. In this way, when the methanol spray 8 is burning, the exhaust gas generated in the main combustion chamber 10 can be discharged from the pipe through the exhaust channel 14. At the same time, the water vapor generated by the methanol spray 8 during the combustion process will form condensed water after condensation. The condensed water can be discharged from the pipe through the drain channel 21 to avoid the condensed water remaining in the pipe from freezing under low temperature environment. At the same time, the muffler 15 is arranged at the tail end of the drain pipe 21. The muffler 15 can reduce the noise generated by the methanol engine heating device when igniting the methanol spray 8, thereby further improving the riding experience of the passengers.

[0098] Further, in a feasible embodiment, the heating device further comprises: a heat exchange unit, the heat exchange unit being connected to the methanol ignition unit;

[0099] The step of "obtaining low-temperature engine circulating water in the methanol engine" in the above step S202 may specifically include:

[0100] Step S2021: obtaining a third control signal;

[0101] Step S2022: controlling the heat exchange unit based on the third control signal so that the low-temperature engine circulating water in the methanol engine enters the heat exchange unit;

[0102] In this embodiment, after the heating device successfully ignites the methanol fuel and releases heat, it is also necessary to obtain a third control signal for controlling the heat exchange unit configured by the heating device itself. After that, the heating device controls the heat exchange unit based on the third control signal to allow the low-temperature engine circulating water in the methanol engine in a low-temperature state to flow into the heat exchange unit through the pipeline. After that, the heating device generates a fourth control signal and controls the electronic water pump based on the fourth control signal to allow the electronic water pump to send the low-temperature engine circulating water at the water inlet of the electronic water pump into the heat exchange medium inlet connected to itself, so that the low-temperature engine circulating water flows into the heat exchange medium channel through the heat exchange medium inlet, and obtains the heat in the main combustion chamber through the heat exchange plate configured on the main combustion chamber shell in the heat exchange medium channel, thereby increasing its own temperature to become a higher temperature high-temperature engine circulating water. Finally, the heating device controls the heat exchange unit again based on the third control signal, so that the high-temperature engine circulating water can flow back into the methanol engine through the pipeline when it flows to the heat exchange medium outlet connected to the heat exchange medium channel, thereby increasing the temperature of the methanol engine through the heat carried by itself.

[0103] For example, for example, Figure 4 As shown, when the heating device successfully ignites the methanol fuel and generates heat in the main combustion chamber 10, the main combustion chamber 10 can transfer the heat contained in itself to the heat exchange medium channel 11 in the heat exchange unit on the other side of the main combustion chamber shell 12 through the heat exchange plate 16 configured on the main combustion chamber shell 12. At this time, the heating device obtains a third control signal for controlling the heat exchange unit, and controls the heat exchange unit based on the third control signal, so that the low-temperature engine circulating water in the methanol engine in a low-temperature state can flow through the pipeline into the electronic water pump water inlet 20 configured in the heat exchange unit, and the electronic water pump 19 connected to the electronic water pump water inlet 20 can transfer the electronic water pump water inlet The low-temperature engine circulating water in 20 is input to the heat exchange medium inlet 17 connected to itself, and the low-temperature engine circulating water then flows into the heat exchange medium channel 11 in the heat exchange unit through the heat exchange medium inlet 17, and obtains the heat in the main combustion chamber 10 through the heat exchange medium channel 11, thereby becoming a high-temperature engine circulating water with a higher temperature. After that, the high-temperature engine circulating water flows into the heat exchange medium outlet 18 connected to the heat exchange medium channel 11 through the heat exchange medium channel 11. At this time, the heating device further sets the heat exchange unit according to the third control signal to make the high-temperature engine circulating water flow back to the methanol engine through the pipeline, thereby heating the methanol engine. In this way, the heating device can smoothly transfer the heat generated in the main combustion chamber to the engine circulating water, and then make the engine circulating water carrying heat return to the methanol engine and heat the methanol engine.

[0104] Step S30: When the second engine water temperature is greater than or equal to a second temperature threshold, controlling the methanol engine to inject methanol fuel to complete startup, wherein the second temperature threshold is greater than the first temperature threshold;

[0105] In this embodiment, the heating device obtains a second temperature threshold value preset by a technician and is higher than the first temperature threshold value, and compares the detected second engine water temperature with the second temperature threshold value to determine whether the second engine water temperature is greater than or equal to the second temperature threshold value. If the heating device determines that the second engine water temperature is greater than or equal to the second temperature threshold value, it is determined that the methanol engine meets the starting conditions, and the heating device generates a fourth control signal, and controls the methanol engine to inject methanol fuel based on the fourth control signal to enable the methanol engine to complete the start-up.

[0106] Exemplarily, for example, after obtaining the second engine water temperature, the heating device obtains a second temperature threshold T2 preset by a technician that is higher than the first temperature threshold T1, and compares the second engine water temperature with the second temperature threshold T2 to obtain a second comparison result. Afterwards, if the heating device determines that the second comparison result is that the second engine water temperature is greater than or equal to the second temperature threshold T2, it is determined that under the temperature condition, the methanol fuel injected into the methanol engine has been able to volatilize normally, and the heating device generates a fourth control signal, and controls the methanol engine to inject methanol fuel based on the fourth control signal.

[0107] In this embodiment, when the methanol engine needs to be started in a low temperature environment, the heating device first detects the methanol engine connected to itself, thereby obtaining the first engine water temperature of the methanol engine in an unstarted state, and determines whether the first engine water temperature is less than the first temperature threshold preset by the technician. After that, if the heating device determines that the first engine water temperature is less than the first temperature threshold, the methanol fuel is obtained and the methanol fuel is ignited to generate heat, and the heating device heats the methanol engine through the heat. At the same time, the heating device detects the methanol engine again to obtain the second engine water temperature of the methanol engine during the heating process. Finally, the heating device obtains a second temperature threshold preset by the technician that is higher than the first temperature threshold, and compares the detected second engine water temperature with the second temperature threshold to determine whether the second engine water temperature is greater than or equal to the second temperature threshold. If the heating device determines that the second engine water temperature is greater than or equal to the second temperature threshold, it is determined that the methanol engine meets the starting conditions, and the heating device generates a fourth control signal, and controls the methanol engine to inject methanol fuel based on the fourth control signal to complete the start of the methanol engine.

[0108] In this way, the present application solves the technical problem in the related technology that technicians need to spend a lot of cost to add an additional gasoline fuel supply system in the methanol engine to ensure that when the methanol engine is started in a low-temperature environment, it can complete the start-up by first injecting part of the gasoline fuel. That is, the present application ignites the methanol fuel through a heating device to generate heat, and uses the heat to heat the engine circulating water of the methanol engine to increase the temperature of the methanol engine, so that when the methanol fuel is injected into the methanol engine in a low-temperature environment, the methanol fuel can also be fully volatilized to form a mixed fuel gas, thereby allowing the methanol engine to complete the start-up in a low-temperature environment relying solely on methanol fuel.

[0109] Based on the first embodiment of the method for starting a methanol engine of the present application, a second embodiment of the method for starting a methanol engine of the present application is proposed herein.

[0110] Furthermore, in a feasible embodiment, after the above step S30, the methanol engine starting method of the present application may further include the following steps:

[0111] Step A10: detecting the methanol engine to obtain a third engine water temperature of the methanol engine, and determining whether the third engine water temperature is greater than or equal to a third temperature threshold;

[0112] Step A20: If it is determined that the third engine water temperature is greater than or equal to the third temperature threshold, then stopping heating the methanol engine, wherein the third temperature threshold is greater than the second temperature threshold;

[0113] In this embodiment, after the methanol engine is successfully started, the heating device also detects the methanol engine again to obtain the third engine water temperature corresponding to the methanol engine in the starting state. At the same time, the heating device obtains a third temperature threshold preset by the technician that is higher than the second temperature threshold, and compares the third engine water temperature with the third temperature threshold to determine whether the third engine water temperature is greater than or equal to the third temperature threshold. Afterwards, if the heating device determines that the third engine water temperature is greater than or equal to the third temperature threshold, it determines that the methanol engine has completed the preheating work, thereby stopping heating the methanol engine to allow the methanol engine to run alone.

[0114] Exemplarily, for example, after the methanol engine is successfully started, the heating device again calls the above-mentioned temperature sensor to detect the methanol engine to obtain the third engine water temperature when the methanol engine completes the startup operation. At the same time, the heating device obtains the third temperature threshold T3 preset by the technician that is higher than the second temperature threshold T2, and compares the third engine water temperature with the third temperature threshold T3 to determine whether the third engine water temperature is greater than or equal to the third temperature threshold T3. Afterwards, if the heating device determines that the third engine water temperature is greater than or equal to the third temperature threshold T3, it is determined that the methanol engine has completed preheating, and that continuing to heat the methanol engine will cause the methanol engine to overheat, thereby posing a certain operating risk. The heating device then generates a signal for stopping heating the methanol engine. The fifth control signal is used to control the methanol delivery unit, methanol ignition unit and air intake unit configured by the heating device in sequence based on the fifth control signal, so that the electrically controlled methanol injector 6 in the methanol ignition unit stops injecting methanol fuel, and the multiple ignition electrodes 7-1 to 7-4 are configured to stop ignition, thereby ensuring that the methanol fuel in the pre-combustion chamber 9 stops burning. At the same time, the heating device controls the electric infusion pump 2 in the methanol delivery unit and the electronic water pump 19 in the heat exchange unit based on the fifth control signal to stop the electric infusion pump 2 and the electronic water pump 19 from running, thereby stopping the delivery of methanol fuel and engine circulating water to the heating device. Finally, the heating device controls the intake fan 23 in the air intake unit based on the fifth control signal to stop the intake fan 23 from rotating, thereby stopping the supply of air to the pre-combustion chamber 9. In this way, the heating device can detect the operating temperature of the methanol engine in time, and ensure that the heating work of the methanol engine is stopped when the operating temperature reaches the preset value, thereby ensuring that the methanol engine will not overheat and generate risks during operation.

[0115] Based on the first embodiment and / or the second embodiment of the method for starting a methanol engine of the present application, a third embodiment of the method for starting a methanol engine of the present application is proposed herein.

[0116] Furthermore, in a feasible embodiment, after the above step S30, the methanol engine starting method of the present application may further include the following steps:

[0117] Step B10: detecting the methanol engine to obtain a real-time methanol concentration value of the methanol engine, and determining whether the real-time methanol concentration value is greater than or equal to a methanol concentration threshold;

[0118] Step B20: if it is determined that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, a preset reminder message is output and heating of the methanol engine is stopped;

[0119] In this embodiment, after the methanol engine is successfully started, the heating device also detects itself to obtain the real-time methanol concentration value contained in it. At the same time, the heating device obtains the methanol concentration threshold preset by the technician, and compares the real-time methanol concentration value with the methanol concentration threshold to determine whether the real-time methanol concentration value is greater than or equal to the methanol concentration threshold. Afterwards, if the heating device determines that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, it obtains the preset reminder information and inputs the reminder information into the vehicle system connected to itself. The vehicle system displays the reminder information to the user through the display device configured by itself. At the same time, the heating device stops heating the methanol engine.

[0120] For example, after the methanol engine is successfully started, the heating device can also detect the methanol concentration contained in itself through the methanol vapor concentration sensor 24 configured by itself to obtain its own real-time methanol concentration value. At the same time, the heating device obtains the methanol concentration threshold preset by the technician, and compares the real-time methanol concentration value with the methanol concentration threshold to determine whether the real-time methanol concentration value is greater than or equal to the methanol concentration threshold. After that, if the heating device determines that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, it determines that there is a flash explosion risk, thereby generating the above-mentioned fifth control signal, and based on the fifth control signal, the methanol delivery unit, methanol ignition unit and intake unit configured by itself are controlled in sequence to stop the heating work of the methanol engine. At the same time, the heating device obtains the reminder information preset by the technician, and sends the reminder information to the vehicle system of the new energy vehicle where it is located, and the vehicle system displays the reminder information to the user through the display device configured by itself. In this way, the heating device can also detect the methanol vapor concentration contained in itself, and stop heating the methanol engine in time when it is determined that the methanol vapor concentration is high, further improving safety.

[0121] Based on the above-mentioned embodiments of the method for starting a methanol engine of the present application, a preferred embodiment of the method for starting a methanol engine of the present application is proposed here.

[0122] Please refer to Figure 8 , Figure 8 This is a flow chart of a preferred embodiment of the method for starting a methanol engine of the present application, as shown in FIG. Figure 8As shown, in this embodiment, when the methanol engine needs to be started in a low temperature environment, the heating device can first perform a system self-check to complete the start-up preparation. After that, the heating device calls the temperature sensor configured by itself to detect the methanol engine to obtain the first engine water temperature of the methanol engine. When the heating device determines that the first engine water temperature is less than the preset engine water temperature threshold T1, the heating device controls the electronic water pump configured by itself to work so that the low-temperature engine circulating water in the methanol engine enters the heat exchange unit configured by itself. The heating device then controls the fan configured by itself to work so as to provide air to the main combustion chamber, and controls the methanol ignition unit to work so as to operate the electric infusion pump to input methanol fuel into the methanol ignition unit, and operates the methanol injector to inject methanol fuel into the main combustion chamber, so that the methanol fuel is mixed with air in the main combustion chamber to form a mixed fuel gas, and then the mixed fuel gas is ignited to generate heat, and the heat is allowed to enter the heat exchange unit through the heat exchange plate configured on the main combustion chamber to heat the low-temperature engine circulating water to generate high-temperature engine circulating water, and then the high-temperature engine circulating water is used to heat the methanol engine;

[0123] Afterwards, the heating device calls the temperature sensor to detect the methanol engine again during the process of heating the methanol engine to obtain the second engine water temperature of the methanol engine, and when the second engine water temperature reaches the preset engine water temperature threshold T2, the methanol engine is controlled to inject methanol fuel to complete the startup. At the same time, the heating device detects the methanol engine to obtain the third engine water temperature of the methanol engine, and when the third engine water temperature reaches the preset engine water temperature threshold T3, the heating device stops heating the methanol engine and completes the power-off shutdown operation.

[0124] In addition, to achieve the above purpose, the present application also provides a methanol engine starting device, the methanol engine starting device is applied to a heating device, the heating device heats the methanol engine connected to itself by igniting methanol fuel, please refer to Fig. 9 , Fig. 9 This is a schematic diagram of the functional modules involved in an embodiment of the methanol engine starting device of the present application, such as Fig. 9 As shown, the device comprises:

[0125] A first detection module 10 detects the methanol engine to obtain a first engine water temperature of the methanol engine, and determines whether the first engine water temperature is less than a first temperature threshold;

[0126] A second detection module 20 is used for heating the methanol engine and detecting the methanol engine to obtain a second engine water temperature of the methanol engine if it is determined that the first engine water temperature is less than the first temperature threshold;

[0127] The engine starting module 30 is used to control the methanol engine to inject methanol fuel to complete starting when the second engine water temperature is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold.

[0128] Further, the heating device includes: a methanol ignition unit, a second detection module 20, including:

[0129] A methanol acquisition unit, used to acquire methanol fuel and generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit;

[0130] The engine heating unit is used to obtain low-temperature engine circulating water in the methanol engine and heat the methanol engine through the heat generated by the mixed fuel gas and the low-temperature engine circulating water.

[0131] Furthermore, the heating device further comprises: a methanol delivery unit and an air intake unit, wherein the methanol delivery unit is connected to the methanol ignition unit, the methanol ignition unit is connected to the air intake unit, and the methanol acquisition unit comprises:

[0132] A first signal acquisition subunit, used to acquire a first control signal;

[0133] The first control subunit is used to control the methanol delivery unit and the air intake unit based on the first control signal to generate a mixed fuel gas corresponding to the methanol fuel in the methanol ignition unit.

[0134] Further, the methanol ignition unit includes: a methanol injector oil rail, an electronically controlled methanol injector and a pre-combustion chamber, the methanol injector oil rail is connected to the electronically controlled methanol injector, the electronically controlled methanol injector is connected to the pre-combustion chamber, and the methanol acquisition unit also includes:

[0135] a second control subunit, configured to control the methanol delivery unit to input the methanol fuel to the methanol injector rail based on the first control signal, and to control the air intake unit to input air to the pre-combustion chamber based on the first control signal;

[0136] The second signal acquisition subunit is used to acquire a second control signal, and based on the second control signal, control the electronically controlled methanol injector to inject the methanol fuel into the pre-combustion chamber, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air.

[0137] Furthermore, the heating device further comprises: a heat exchange unit, the heat exchange unit being connected to the methanol ignition unit, and an engine heating unit comprising:

[0138] A third signal acquisition subunit, used to acquire a third control signal;

[0139] The third control subunit is used to control the heat exchange unit based on the third control signal so that the low-temperature engine circulating water in the methanol engine enters the heat exchange unit.

[0140] Furthermore, the engine starting module 30 includes:

[0141] a third detection unit, configured to detect the methanol engine to obtain a third engine water temperature of the methanol engine, and determine whether the third engine water temperature is greater than or equal to a third temperature threshold;

[0142] The first shutdown unit is used to stop heating the methanol engine if it is determined that the third engine water temperature is greater than or equal to the third temperature threshold, wherein the third temperature threshold is greater than the second temperature threshold.

[0143] Furthermore, the engine starting module 30 further includes:

[0144] a fourth detection unit, configured to detect the methanol engine to obtain a real-time methanol concentration value of the methanol engine, and determine whether the real-time methanol concentration value is greater than or equal to a methanol concentration threshold;

[0145] The second shutdown unit is used to output a preset reminder message and stop heating the methanol engine if it is determined that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold.

[0146] In addition, the present application also provides a heating device having a computer program that can be run on a processor, and when the heating device executes the computer program, the steps of the methanol engine starting method described in any of the above embodiments are implemented.

[0147] The specific embodiments of the heating device of the present application are basically the same as the embodiments of the methanol engine starting method described above, and will not be described in detail here.

[0148] In addition, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the methanol engine starting method described in any of the above embodiments are implemented.

[0149] The specific embodiments of the computer-readable storage medium of the present invention are basically the same as the embodiments of the methanol engine starting method described above, and will not be described in detail here.

[0150] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0151] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0152] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, including a number of instructions for a heating device (which can be a heating device that is internally configured with a methanol delivery unit, a methanol ignition unit, a heat exchange unit and an air intake unit, and is itself connected to a methanol engine, etc.) to execute the methods described in each embodiment of the present application.

[0153] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for starting a methanol engine, characterized in that: The methanol engine starting method is applied to a heating device, wherein the heating device comprises a methanol ignition unit, a methanol delivery unit, and an air intake unit, wherein the methanol delivery unit is connected to the methanol ignition unit, and the methanol ignition unit is connected to the air intake unit; The methanol ignition unit comprises a methanol injector oil rail, an electronically controlled methanol injector, a pre-combustion chamber, an exhaust passage, a muffler, and a drainage passage. The methanol injector oil rail is connected to the electronically controlled methanol injector, and the electronically controlled methanol injector is connected to the pre-combustion chamber. The heating device heats the methanol engine connected to itself by igniting methanol fuel. The starting method of the methanol engine comprises the following steps: Detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold; If it is determined that the first engine water temperature is less than the first temperature threshold, methanol fuel and a first control signal are obtained, the methanol delivery unit is controlled based on the first control signal to input the methanol fuel to the methanol injector rail, and the air intake unit is controlled based on the first control signal to input air to the pre-combustion chamber; Obtaining a second control signal, and based on the second control signal, controlling the electronically controlled methanol injector to inject the methanol fuel in the methanol injector fuel rail into the pre-combustion chamber, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air, wherein the second control signal is a control signal generated based on a methanol injection amount determined based on the heat required to be generated; Acquire low-temperature engine circulating water in the methanol engine, heat the methanol engine by using the heat generated by the mixed fuel gas and the low-temperature engine circulating water, and detect the methanol engine to acquire a second engine water temperature of the methanol engine; When the second engine water temperature is greater than or equal to a second temperature threshold, the methanol engine is controlled to inject methanol fuel to complete starting, wherein the second temperature threshold is greater than the first temperature threshold.

2. The method for starting a methanol engine according to claim 1, characterized in that: The heating device further comprises: a heat exchange unit, the heat exchange unit being connected to the methanol ignition unit; The step of obtaining low-temperature engine circulating water in the methanol engine comprises: acquiring a third control signal; The heat exchange unit is controlled based on the third control signal so that low-temperature engine circulating water in the methanol engine enters the heat exchange unit.

3. The method for starting a methanol engine according to claim 1, characterized in that: After the step of controlling the methanol engine to inject methanol fuel to complete startup, the method further includes: detecting the methanol engine to obtain a third engine water temperature of the methanol engine, and determining whether the third engine water temperature is greater than or equal to a third temperature threshold; If it is determined that the third engine water temperature is greater than or equal to the third temperature threshold, heating of the methanol engine is stopped, wherein the third temperature threshold is greater than the second temperature threshold.

4. The method for starting a methanol engine according to claim 1, characterized in that: After the step of controlling the methanol engine to inject methanol fuel to complete startup, the method further includes: Detecting the methanol engine to obtain a real-time methanol concentration value of the methanol engine, and determining whether the real-time methanol concentration value is greater than or equal to a methanol concentration threshold; If it is determined that the real-time methanol concentration value is greater than or equal to the methanol concentration threshold, a preset reminder message is output and heating of the methanol engine is stopped.

5. A methanol engine starting device, characterized in that: The methanol engine starting device is applied to a heating device, the heating device comprises a methanol ignition unit, a methanol delivery unit, and an air intake unit, the methanol delivery unit is connected to the methanol ignition unit, and the methanol ignition unit is connected to the air intake unit; The methanol ignition unit includes a methanol injector oil rail, an electronically controlled methanol injector, a pre-combustion chamber, an exhaust passage, a muffler, and a drainage passage. The methanol injector oil rail is connected to the electronically controlled methanol injector, and the electronically controlled methanol injector is connected to the pre-combustion chamber. The heating device heats the methanol engine connected to itself by igniting methanol fuel. The device includes: a first detection module, detecting the methanol engine to obtain a first engine water temperature of the methanol engine, and determining whether the first engine water temperature is less than a first temperature threshold; a second detection module, configured to obtain methanol fuel and a first control signal if it is determined that the first engine water temperature is less than the first temperature threshold, control the methanol delivery unit to input the methanol fuel to the methanol injector rail based on the first control signal, and control the air intake unit to input air to the pre-combustion chamber based on the first control signal; Obtaining a second control signal, and based on the second control signal, controlling the electronically controlled methanol injector to inject the methanol fuel in the methanol injector fuel rail into the pre-combustion chamber, so as to generate a mixed fuel gas corresponding to the methanol fuel in the pre-combustion chamber through the methanol fuel and the air, wherein the second control signal is a control signal generated based on a methanol injection amount determined based on the heat required to be generated; Acquire low-temperature engine circulating water in the methanol engine, heat the methanol engine by using the heat generated by the mixed fuel gas and the low-temperature engine circulating water, and detect the methanol engine to acquire a second engine water temperature of the methanol engine; The engine starting module is used to control the methanol engine to inject methanol fuel to complete starting when the second engine water temperature is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold.

6. A heating device, characterized in that: The heating device comprises: a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the computer program is executed by the processor, the steps of the methanol engine starting method as described in any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the methanol engine starting method according to any one of claims 1 to 4 are implemented.

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