CN115929482A - Engine mode switching method, terminal equipment and computer storage medium - Google Patents
Engine mode switching method, terminal equipment and computer storage medium Download PDFInfo
- Publication number
- CN115929482A CN115929482A CN202211645262.4A CN202211645262A CN115929482A CN 115929482 A CN115929482 A CN 115929482A CN 202211645262 A CN202211645262 A CN 202211645262A CN 115929482 A CN115929482 A CN 115929482A
- Authority
- CN
- China
- Prior art keywords
- engine
- methanol
- mode
- target engine
- gasoline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 78
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 1081
- 238000002347 injection Methods 0.000 claims abstract description 176
- 239000007924 injection Substances 0.000 claims abstract description 176
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 238000004140 cleaning Methods 0.000 claims abstract description 63
- 238000005406 washing Methods 0.000 claims abstract description 19
- 239000000446 fuel Substances 0.000 claims description 136
- 239000007788 liquid Substances 0.000 claims description 29
- 238000005086 pumping Methods 0.000 claims description 18
- 239000000284 extract Substances 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000013500 data storage Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses a switching method of an engine mode, a terminal device and a computer readable storage medium, comprising the following steps: the method comprises the steps of obtaining a first engine water temperature of a target engine, and controlling the target engine to enter an oil rail cleaning mode and obtaining the cleaning time of the target engine in the oil rail cleaning mode when the first engine water temperature is smaller than a preset first temperature threshold; when the washing duration is greater than or equal to a preset first time threshold, controlling the target engine to enter a gasoline injection mode, and acquiring a second engine water temperature of the target engine in the gasoline injection mode; when the water temperature of the second engine is greater than or equal to the first temperature threshold value, controlling the target engine to enter a methanol injection mode, and acquiring a third engine water temperature of the target engine in the methanol injection mode; when the water temperature of the third engine is greater than or equal to a preset second temperature threshold value, controlling the target engine to enter a methanol fractional injection mode; wherein the second temperature threshold is greater than the first temperature threshold.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a method for switching an engine mode, a terminal device, and a computer-readable storage medium.
Background
With the rapid development of the automobile industry, methanol is increasingly used as a fuel of new energy vehicles because of the advantages of clean emission, good economy and the like, but because methanol has the characteristics of large latent heat of vaporization, poor evaporability and the like in a low-temperature environment, the methanol is difficult to reach the ignition limit in the low-temperature environment, and further the methanol engine is difficult to start in the low-temperature environment.
However, in order to solve the above problems, technicians mainly deploy the gasoline injection system and the methanol injection system as two independent working units on the methanol engine, that is, when the methanol engine is in a low-temperature cold start stage, only the gasoline injection system is controlled to participate in injection, and after the methanol engine is started, the methanol injection mode is switched to the methanol injection mode, and only the methanol injection system is controlled to participate in operation.
In addition, adopt above-mentioned mode still to face because the restriction of the arrangement space on the methanol engine, lead to the technical staff to arrange only one set of gasoline injection system and one set of methanol injection system condition on the methanol engine and appear, so, for the great high-power heavy-duty methanol engine of demand methanol injection volume, the methanol fuel that one set of methanol injection system sprayed has injection pressure low, the characteristics of atomizing quality poor, and then leads to the unsatisfactory technical problem of the atomizing evaporation quality of methanol.
Disclosure of Invention
The embodiment of the invention provides an engine mode switching method, terminal equipment and a computer readable storage medium, and aims to improve the atomization evaporation quality of methanol fuel in a target engine and further prolong the service life of a gasoline nozzle in the target engine.
To achieve the above object, the present invention provides an engine mode switching method, comprising:
the method comprises the steps of obtaining a first engine water temperature of a target engine, and when the first engine water temperature is smaller than a preset first temperature threshold value, controlling the target engine to enter an oil rail cleaning mode and obtaining the cleaning duration of the target engine in the oil rail cleaning mode;
when the washing duration is greater than or equal to a preset first time threshold, controlling the target engine to enter a gasoline injection mode, and acquiring a second engine water temperature of the target engine in the gasoline injection mode;
when the second engine water temperature is larger than or equal to the first temperature threshold value, controlling the target engine to enter a methanol injection mode, and acquiring a third engine water temperature of the target engine in the methanol injection mode;
when the water temperature of the third engine is greater than or equal to a preset second temperature threshold value, controlling the target engine to enter a methanol fractional injection mode; wherein the second temperature threshold is greater than the first temperature threshold.
Furthermore, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a first oil rail and a second oil rail are arranged in the target engine, wherein the first electromagnetic valve connects the first oil rail with a gasoline pipeline and switches on and off the gasoline fuel of the first oil rail, the second electromagnetic valve connects a methanol pipeline with the first oil rail and switches on and off the methanol fuel of the first oil rail, and the third electromagnetic valve is arranged at the front end of the first oil rail and connects the first oil rail with the second oil rail;
the step of controlling the target engine to enter an oil rail cleaning mode and acquiring the cleaning duration of the target engine in the oil rail cleaning mode includes:
adjusting the first electromagnetic valve and the third electromagnetic valve to be in an opening state, and adjusting the second electromagnetic valve to be in a closing state to control the target engine to enter an oil rail cleaning mode;
when the target engine enters the oil rail washing mode, detecting the injection time length of the target engine for injecting the gasoline fuel in the oil rail washing mode, and determining the injection time length as the washing time length.
Further, the step of controlling the target engine to enter a gasoline injection mode includes:
adjusting the third solenoid valve to a closed state to cause the gasoline fuel to enter the first fuel rail, thereby causing the target engine to switch from the rail wash mode to a gasoline injection mode.
Further, a methanol pump is also arranged in the target engine, wherein the methanol pump extracts the methanol fuel and conveys the methanol fuel to the methanol pipeline;
the step of controlling the target engine to enter a methanol injection mode includes:
controlling a methanol pump configured in the target engine to perform an oil pumping operation;
and when the oil pumping time of the methanol pump reaches a preset time length, adjusting the first electromagnetic valve to be switched to a closed state so as to enable the methanol fuel to enter the second oil rail, so that the target engine is switched from the gasoline injection mode to the methanol injection mode.
Further, the step of controlling the target engine to enter the methanol split injection mode includes:
adjusting the second solenoid valve to switch to an open state to cause the methanol pump to deliver the extracted methanol fuel into the first oil rail and the second oil rail simultaneously;
and controlling the first oil rail and the second oil rail to inject the methanol fuel according to a preset injection ratio so as to switch the target engine from the methanol injection mode to the methanol split injection mode.
Further, after the step of controlling the first oil rail and the second oil rail to inject the methanol fuel at respective preset injection ratios to switch the target engine from the methanol injection mode to the methanol split injection mode, the method further includes:
detecting a methanol liquid level line corresponding to the target engine;
and when the methanol liquid level line is lower than a preset methanol threshold value, controlling the target engine to be switched from the methanol injection mode to the gasoline injection mode.
Further, after the step of obtaining the first engine water temperature of the target engine, the method further includes:
and when the water temperature of the first engine is greater than or equal to a preset first temperature threshold value, adjusting a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve which are arranged in the target engine to be in a closed state so as to control the target engine to enter a methanol injection mode.
Further, after the step of obtaining the first engine water temperature of the target engine, the method further includes:
when the water temperature of the first engine is smaller than a preset first temperature threshold value, detecting a gasoline liquid level line corresponding to the target engine;
and when the gasoline liquid level line is lower than a preset gasoline threshold value, controlling the target engine to skip the gasoline rail cleaning mode and directly enter a gasoline injection mode.
In addition, to achieve the above object, the present invention also provides a terminal device, including: the switching method comprises the steps of a memory, a processor and an engine mode switching program which is stored on the memory and can run on the processor, wherein the steps of the engine mode switching method are realized when the engine mode switching program is executed by the processor.
Further, to achieve the above object, the present invention also provides a computer-readable storage medium having stored thereon a switching program of an engine mode, which when executed by a processor, realizes the steps of the switching method of the engine mode as described above.
According to the switching method of the engine modes, the terminal device and the computer readable storage medium provided by the embodiment of the invention, by acquiring the first engine water temperature of the target engine, when the first engine water temperature is smaller than a preset first temperature threshold value, the target engine is controlled to enter the oil rail cleaning mode and the cleaning duration of the target engine in the oil rail cleaning mode is acquired; when the washing duration is greater than or equal to a preset first time threshold, controlling the target engine to enter a gasoline injection mode, and acquiring a second engine water temperature of the target engine in the gasoline injection mode; when the second engine water temperature is larger than or equal to the first temperature threshold value, controlling the target engine to enter a methanol injection mode, and acquiring a third engine water temperature of the target engine in the methanol injection mode; when the water temperature of the third engine is greater than or equal to a preset second temperature threshold value, controlling the target engine to enter a methanol fractional injection mode; wherein the second temperature threshold is greater than the first temperature threshold.
In the embodiment, when the terminal device operates, firstly, a temperature sensor arranged in the terminal device is used for detecting a target engine to obtain first engine water temperature of the target engine, the obtained first engine water temperature is compared with a first temperature threshold preset by a technician, when the terminal device determines that the first engine water temperature is lower than the first temperature threshold, the terminal device adjusts each oil rail arranged in the target engine to control the target engine to enter an oil rail cleaning mode, and obtains a corresponding cleaning time length of the target engine in the oil rail cleaning mode, then, the terminal device compares the cleaning time length with a preset first time threshold, and when the cleaning time length is determined to be larger than or equal to the first time threshold, adjusts each oil rail to control the target engine to enter a gasoline injection mode, meanwhile, the terminal device detects the target engine again through the temperature sensor to obtain second engine water temperature of the target engine, and compares the second engine water temperature with the first temperature threshold; then, when the terminal device determines that the water temperature of the second engine is larger than or equal to the first temperature threshold value, the terminal device adjusts each oil rail so as to control the target engine to be switched from a gasoline injection mode to a methanol injection mode, and detects the target engine through a temperature sensor so as to obtain the water temperature of a third engine of the target engine; and finally, the terminal equipment compares the acquired water temperature of the third engine with a preset second temperature threshold, and when the water temperature of the third engine is determined to be greater than or equal to the second temperature threshold, each oil rail is adjusted so as to control the target engine to be switched from the methanol injection mode to the methanol fractional injection mode.
Therefore, the water temperature of the engine is detected, the methanol engine is controlled to enter the oil rail cleaning mode according to the water temperature of the engine, the methanol engine is controlled to enter the gasoline injection mode after the oil rail cleaning is finished, the methanol engine is controlled to be switched from the gasoline injection mode to the methanol injection mode when the water temperature of the engine rises to a preset temperature threshold value, and similarly, the methanol engine is controlled to be switched from the methanol injection mode to the methanol fractional injection mode when the water temperature of the engine rises to a preset second temperature threshold value.
Drawings
Fig. 1 is a schematic structural diagram of a terminal device in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of a first embodiment of the engine mode switching method of the present invention;
FIG. 3 is a schematic flow chart diagram of a third embodiment of the engine mode switching method of the present invention;
FIG. 4 is a schematic flow chart diagram of a fourth embodiment of the engine mode switching method of the present invention;
FIG. 5 is a schematic structural diagram of a methanol engine according to an embodiment of the method for switching engine modes of the present invention;
FIG. 6 is a flow chart illustrating a preferred embodiment of the engine mode switching method of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a terminal device in a hardware operating environment according to an embodiment of the present invention.
It should be noted that fig. 1 is a schematic structural diagram of a hardware operating environment of the terminal device. The terminal device according to the embodiment of the present invention may be a terminal device that has a solenoid valve control function and executes the engine mode switching method according to the present invention, and the terminal device may specifically be a data storage control terminal, a PC, a portable computer, or the like.
As shown in fig. 1, the terminal 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. Wherein a communication bus 1002 is used to enable connective 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, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the terminal device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a storage medium, may include an operating system, a data storage module, a network communication module, a user interface module, and an engine mode switching program.
In the terminal device shown in fig. 1, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the terminal device of the present invention may be provided in the terminal device, and the terminal device calls the engine mode switching program stored in the memory 1005 by the processor 1001 and executes the engine mode switching method provided by the embodiment of the present invention.
Based on the terminal device described above, various embodiments of the engine mode switching method of the present invention are provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the engine mode switching method of the present invention.
It should be understood that while a logical sequence is shown in the flow chart, in some cases, the engine mode switching method of the present invention may of course perform the steps shown or described in a different order than that herein.
In this embodiment, the method for switching the engine mode of the present invention may include the steps of:
step S10: the method comprises the steps of obtaining a first engine water temperature of a target engine, and when the first engine water temperature is smaller than a preset first temperature threshold value, controlling the target engine to enter an oil rail cleaning mode and obtaining the cleaning time length of the target engine in the oil rail cleaning mode;
the oil rail cleaning mode is a mode that when the engine extracts gasoline fuel, the gasoline fuel is input into the oil rail fuel injector assembly, and then all gasoline nozzles integrated in the oil rail fuel injector assembly are cleaned through the gasoline fuel.
In this embodiment, when the terminal device operates, the temperature sensor configured in the methanol engine is used to detect the methanol engine and obtain a first engine water temperature of the target engine, the terminal device further compares the obtained first engine water temperature with a first temperature threshold preset by a technician, and when it is determined that the first engine water temperature is smaller than the first temperature threshold, the terminal device controls the methanol engine to enter an oil rail cleaning mode, and meanwhile, the terminal device detects the cleaning duration of the methanol engine in the oil rail cleaning mode.
Further, in a possible embodiment, the step of "controlling the target engine to enter the oil rail washing mode and obtaining the washing duration of the target engine in the oil rail washing mode" in the step S10 may specifically include:
step S101: adjusting the first electromagnetic valve and the third electromagnetic valve to be in an opening state, and adjusting the second electromagnetic valve to be in a closing state to control the target engine to enter an oil rail cleaning mode;
in this embodiment, the terminal device adjusts the first solenoid valve and the third solenoid valve in the methanol engine to an open state, and simultaneously, the terminal device adjusts the second solenoid valve in the methanol engine to a closed state, so that the methanol engine enters an oil rail cleaning mode to clean each gasoline nozzle corresponding to the first oil rail.
Step S102: detecting an injection period during which the target engine injects the gasoline fuel in the fuel rail washing mode when the target engine enters the fuel rail washing mode, and determining the injection period as a washing period;
in this embodiment, when the terminal device controls the methanol engine to enter the oil rail cleaning mode, the timing device configured in the terminal device is controlled to detect the methanol engine, so as to determine the injection duration of the first oil rail in the methanol engine for injecting the gasoline fuel, and determine the detected injection duration as the cleaning duration.
For example, referring to fig. 5, fig. 5 is a schematic structural diagram of a methanol engine according to an embodiment of the engine mode switching method of the present invention, as shown in fig. 5, a fuel rail injector assembly 1, a fuel rail injector assembly 2, a solenoid valve 1, a solenoid valve 2, and a solenoid valve 3 are configured in the methanol engine, where the fuel rail injector assembly 1 is a gasoline-methanol fuel rail injector assembly, and is mainly used to clean each gasoline nozzle and perform gasoline fuel injection operation in a gasoline mode at a low-temperature cold start stage, and meanwhile, the fuel rail injector assembly 1 can perform methanol fuel split injection operation in a methanol split injection mode; similarly, the oil rail injector assembly 2 is a methanol oil rail injector assembly, and is mainly used for realizing the injection work of methanol fuel in a methanol injection mode, and the oil rail injector assembly 1 and the methanol fuel can realize the fractional injection work of the methanol fuel in a methanol fractional injection mode;
in addition, the electromagnetic valve 1 in fig. 5 is mainly used for switching on and off the gasoline fuel delivered to the fuel rail injector assembly 1, the electromagnetic valve 2 is mainly used for switching on and off the methanol fuel delivered to the fuel rail injector assembly 1, and the electromagnetic valve is mainly used for switching on and off the pipelines in front of the fuel rail injector assembly 1 and behind the electromagnetic valve 1, the pipelines behind the electromagnetic valve 2, and the fuel rail cleaning mode of the fuel rail injector assembly 1.
As shown in fig. 5, the terminal device controls an electromagnetic valve 1 and an electromagnetic valve 3 configured in the methanol engine through a main control chip configured inside, so as to adjust the electromagnetic valve 1 and the electromagnetic valve 3 to an open state, so that gasoline fuel in the methanol engine can enter an oil rail injector assembly 1 configured in the methanol engine through the electromagnetic valve 1, and further, each gasoline nozzle corresponding to the oil rail injector assembly 1 is cleaned so as to make the methanol engine enter an oil rail cleaning mode, then, the terminal device controls a timing device to simultaneously detect the electromagnetic valve 1 and the electromagnetic valve 3 through the main control chip, the timing device starts to time when determining that the electromagnetic valve 1 and the electromagnetic valve 3 are simultaneously switched to the open state, so as to determine that the methanol engine enters the oil rail cleaning mode and start to time when determining that the methanol engine is in the oil rail cleaning mode, the injection time when the oil rail injector assembly 1 injects gasoline fuel to clean each gasoline nozzle, and determine the injection time as a cleaning duration.
Step S20: when the washing duration is greater than or equal to a preset first time threshold, controlling the target engine to enter a gasoline injection mode, and acquiring a second engine water temperature of the target engine in the gasoline injection mode;
the gasoline injection mode is a mode that when the engine extracts gasoline fuel, atomization operation is carried out on the extracted gasoline fuel, then injection operation is carried out on the atomized gasoline fuel so that the gasoline fuel is fully mixed with air to form mixed gas, and the mixed gas is ignited to generate energy so as to enable a piston in the engine to move;
in this embodiment, when detecting that the washing duration corresponding to the methanol engine is greater than or equal to a preset first time threshold, the terminal device adjusts the methanol engine, so that the methanol engine is switched from the oil rail washing mode to the gasoline injection mode, and meanwhile, the terminal device controls the temperature sensor to detect the methanol engine again, so that the second engine water temperature of the methanol engine in the switching mode is obtained.
Further, in a possible embodiment, the step of "controlling the target engine to enter the gasoline injection mode" in step S20 may specifically include:
step S201: adjusting the third solenoid valve to a closed state to cause the gasoline fuel to enter the first fuel rail, thereby causing the target engine to switch from the rail wash mode to a gasoline injection mode;
illustratively, for example, the terminal device regulates the electromagnetic valve 3 in the methanol engine to be in a closed state through the main control chip, and simultaneously, the gasoline pump in the methanol engine extracts gasoline fuel and sends the gasoline fuel to the fuel rail injector assembly 1 through the electromagnetic valve 1 in an open state, so that the methanol engine is switched from the fuel rail cleaning mode to the gasoline injection mode.
Step S30: when the second engine water temperature is larger than or equal to the first temperature threshold value, controlling the target engine to enter a methanol injection mode, and acquiring a third engine water temperature of the target engine in the methanol injection mode;
the methanol injection mode is a mode in which when the engine extracts methanol fuel, an atomization operation is performed on the extracted methanol fuel, then an injection operation is performed on the atomized methanol fuel to sufficiently mix the methanol fuel with air to form a mixed gas, and the mixed gas is ignited to generate energy so as to enable a piston in the engine to move;
in this embodiment, the terminal device compares the obtained water temperature of the second engine with a first temperature threshold, and when it is determined that the water temperature of the second engine is greater than or equal to the first temperature threshold, the terminal device adjusts each oil rail in the methanol engine, so as to adjust the first oil rail in the methanol engine to a stop working state, and adjusts the second oil rail in the methanol engine to a working state, so as to switch the methanol engine from a gasoline injection mode to a methanol injection mode, and meanwhile, the terminal device detects the methanol engine through a temperature sensor, so as to obtain a third engine water temperature of the methanol engine in the methanol injection mode.
Further, in a possible embodiment, the target engine is further provided with a methanol pump, wherein the methanol pump extracts methanol fuel and delivers the methanol fuel to the methanol pipeline, and the step of "controlling the target engine to enter the methanol injection mode" in the step S30 may specifically include:
step S301: controlling a methanol pump configured in the target engine to perform an oil pumping operation;
in this embodiment, when the terminal device determines that the water temperature of the second engine is greater than or equal to the first temperature threshold, the terminal device obtains an advance oil pumping time preset by a technician, and controls a methanol pump in the methanol engine to perform oil pumping operation according to the advance oil pumping time.
Step S302: when the oil pumping time of the methanol pump reaches a preset time length, adjusting the first electromagnetic valve to be switched to a closed state so that the methanol fuel enters the second oil rail, and accordingly switching the target engine from the gasoline injection mode to the methanol injection mode;
in the embodiment, the terminal device adjusts a first electromagnetic valve in the methanol engine to be in a closed state according to the advanced pumping time, so that the residual gasoline fuel in the first oil rail completes injection in the advanced pumping time, and meanwhile, the terminal device controls the methanol pump to input the extracted methanol fuel into the second oil rail, so that the second oil rail injects the methanol fuel while the first oil rail completes gasoline injection, and the methanol engine is switched from a gasoline injection mode to a methanol injection mode.
Illustratively, for example, when determining that the obtained water temperature of the second engine is greater than or equal to 25 ℃, the terminal device reads the storage device to obtain an advance oil pumping time 5s preset by a technician, then the terminal device controls a methanol pump in the methanol engine to perform an advance oil pumping operation, and the methanol pump delivers the extracted methanol fuel into the rail injector assembly 2, meanwhile, when the methanol pump starts to perform the advance oil pumping operation, the terminal device adjusts the electromagnetic valve 1 to a closed state, then the terminal device controls the rail injector assembly 1 to finish injecting the remaining gasoline fuel within 5s of the advance oil pumping operation performed by the methanol pump, so that the rail injector assembly 1 finishes operating, and the terminal device controls the rail injector assembly 2 to start injecting the methanol fuel while the rail injector assembly 1 finishes injecting the methanol fuel, so that the methanol engine is switched from the gasoline injection mode to the methanol injection mode.
It should be noted that, in this embodiment, the oil pumping advance time is set mainly to enable the methanol engine to realize seamless switching in the process of switching from the gasoline injection mode to the methanol mode, that is, it is avoided that after the methanol engine needs to complete all gasoline fuel in the fuel rail injector assembly 1, methanol fuel is extracted and input into the fuel rail injector assembly 2 to continue methanol injection, so that a vehicle is stopped in the mode switching process of the methanol engine; it is understood that the actual length of the oil pumping advance time is mainly related to the construction of the methanol engine, and the skilled person can adjust the oil pumping advance time according to the construction of the methanol engine, which is not limited by the invention.
Step S40: when the water temperature of the third engine is greater than or equal to a preset second temperature threshold value, controlling the target engine to enter a methanol fractional injection mode; wherein the second temperature threshold is greater than the first temperature threshold;
the methanol injection fractional injection mode is a mode that when the engine extracts methanol fuel, the extracted methanol fuel is input into a plurality of oil rail injector assemblies arranged in the engine, and the methanol fuel is simultaneously atomized through the plurality of oil rail injector assemblies, and then the atomized methanol fuel is simultaneously injected through the plurality of oil rail injector assemblies to fully mix the methanol fuel with air to form mixed gas, and the mixed gas is ignited to generate energy so as to enable a piston in the engine to move;
in this embodiment, the terminal device reads the storage device to obtain a second temperature threshold, which is preset by a technician and is greater than the first temperature threshold, and compares the obtained water temperature of the third engine with the second temperature threshold, and when determining that the obtained water temperature of the third engine is greater than or equal to the preset second temperature threshold, the terminal device adjusts each electromagnetic valve in the methanol engine so as to control the methanol engine to simultaneously inject methanol fuel through the first oil rail and the second oil rail, so that the methanol engine is switched from the methanol injection mode to the methanol split injection mode.
Further, in a possible embodiment, the step of "controlling the target engine to enter the methanol split injection mode" in step S40 may specifically include:
step S401: adjusting the second solenoid valve to switch to an open state to cause the methanol pump to deliver the extracted methanol fuel into the first oil rail and the second oil rail simultaneously;
in this embodiment, when determining that the obtained water temperature of the third engine is greater than or equal to the second temperature threshold, the terminal device adjusts the second electromagnetic valve in the methanol engine, so that the second electromagnetic valve enters an open state, and the methanol fuel extracted by the methanol pump is input to the first oil rail through the second electromagnetic valve.
Step S402: controlling the first oil rail and the second oil rail to inject the methanol fuel according to a preset injection ratio so as to switch the target engine from the methanol injection mode to the methanol split injection mode;
in this embodiment, the terminal device reads the storage device to obtain methanol injection ratios corresponding to the first oil rail and the second oil rail, and controls the first oil rail and the second oil rail to inject the methanol fuel in a split manner according to the methanol injection ratios to switch the methanol engine from the methanol injection mode to the methanol split injection mode.
For example, when the terminal device determines that the temperature of the third engine water is greater than or equal to 45 ℃, the electromagnetic valve 2 in the methanol engine is adjusted, so that the electromagnetic valve 1 and the electromagnetic valve 3 in the methanol engine are in a closed state, and the electromagnetic valve 2 is in an open state, so that the methanol fuel extracted by the methanol pump enters the oil rail injector assembly 1 through the electromagnetic valve 2, meanwhile, the terminal device reads the storage device to determine that the injection proportions corresponding to the oil rail injector assembly 1 and the oil rail injector assembly 2 are both 0.5, and then the terminal device controls the oil rail injector assembly 1 and the oil rail injector assembly 2 to simultaneously inject the methanol fuel according to 50% of the methanol injection quantity of the oil rail injector assembly 2 in the methanol mode, so that the methanol engine enters the methanol fractional injection mode.
It should be noted that, in this embodiment, the injection proportion corresponding to each of the fuel rail injector assembly 1 and the fuel rail injector assembly 2 is set by a technician according to the structure in the methanol engine, and in addition, in another embodiment, when the methanol engine enters the methanol fractional injection mode, each of the fuel rail injector assembly 1 and the fuel rail injector assembly 2 may be further controlled to reduce the injection proportion and increase the corresponding injection frequency, so that the injection frequency is further increased to improve the atomization quality of the methanol fuel under the condition that the total amount of the methanol fuel injected by the fuel rail injector assembly 1 and the fuel rail injector assembly 2 is kept unchanged.
In this embodiment, when the terminal device is running, the temperature sensor arranged in the methanol engine is used to detect the methanol engine and obtain a first engine water temperature of the target engine, the terminal device further compares the obtained first engine water temperature with a first temperature threshold preset by a technician, and when the first engine water temperature is determined to be smaller than the first temperature threshold, the terminal device controls the methanol engine to enter an oil rail cleaning mode, and simultaneously, the terminal device detects a cleaning duration of the methanol engine in the oil rail cleaning mode, and then, when the terminal device detects that the cleaning duration corresponding to the methanol engine is greater than or equal to a preset first time threshold, the terminal device adjusts the methanol engine so as to switch the methanol engine from the oil rail cleaning mode to a gasoline injection mode, and simultaneously, the terminal device controls the temperature sensor to detect the methanol engine again so as to obtain the water temperature of a second engine when the methanol engine is in a switching mode, then the terminal device compares the obtained water temperature of the second engine with the first temperature threshold value, and when the water temperature of the second engine is determined to be larger than or equal to the first temperature threshold value, the terminal device adjusts each oil rail in the methanol engine so as to adjust the first oil rail in the methanol engine to a stop working state, and adjusts the second oil rail in the methanol engine to a working state so as to switch the methanol engine from a gasoline injection mode to a methanol injection mode, meanwhile, the terminal device detects the methanol engine through the temperature sensor so as to obtain the water temperature of a third engine of the methanol engine in the methanol injection mode, and finally, the terminal device reads the storage device so as to obtain the second temperature threshold value which is larger than the first temperature threshold value and is preset by a technician, and comparing the obtained water temperature of the third engine with a second temperature threshold, and when the terminal equipment determines that the obtained water temperature of the third engine is greater than or equal to the preset second temperature threshold, adjusting each electromagnetic valve in the methanol engine so as to control the methanol engine to simultaneously inject methanol fuel through the first oil rail and the second oil rail, so that the methanol engine is switched from a methanol injection mode to a methanol fractional injection mode.
Therefore, the invention adopts the method of detecting the water temperature of the engine, controlling the methanol engine to enter the oil rail cleaning mode according to the water temperature of the engine, further controlling the methanol engine to enter the gasoline injection mode after the oil rail cleaning is finished, and controlling the methanol engine to switch from the gasoline injection mode to the methanol injection mode when the water temperature of the engine rises to the preset temperature threshold, and similarly, controlling the methanol engine to switch from the methanol injection mode to the methanol fractional injection mode when the water temperature of the engine rises to the preset second temperature threshold.
Further, a second embodiment of the engine mode switching method of the invention is proposed herein based on the above-described first embodiment of the engine mode switching method of the invention.
Based on the first embodiment of the method for switching the engine mode of the present invention shown in fig. 2, after the step of "obtaining the first engine water temperature of the target engine" in the above-described step S10, the method for switching the engine mode of the present invention may further include the steps of:
step A10: and when the water temperature of the first engine is greater than or equal to a preset first temperature threshold value, adjusting a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve which are arranged in the target engine to be in a closed state so as to control the target engine to enter a methanol injection mode.
Illustratively, for example, the terminal device first controls the engine water temperature sensor to detect the methanol engine to obtain a first engine water temperature, and at the same time, the terminal device reads the storage device to obtain a first temperature threshold of 25 ℃, and compares the obtained first engine water temperature with the first temperature threshold, and then, when the terminal device determines that the first engine water temperature is greater than or equal to 25 ℃, the terminal device adjusts the solenoid valve 1, the solenoid valve 2, and the solenoid valve 3 in the methanol engine to a closed state, and controls the methanol pump in the methanol engine to extract methanol fuel, so that the methanol fuel is input into the oil rail injector assembly 2 to enable the methanol engine to enter a methanol injection mode.
In the embodiment, the method adopts a mode of directly controlling the methanol engine to enter the methanol injection mode when the water temperature of the engine is determined to be greater than the preset temperature threshold value in the starting stage of the methanol engine, so that the aim of controlling the methanol engine to directly enter the methanol injection mode under the met environmental conditions and avoiding the waste of gasoline fuel is fulfilled.
Further, a third embodiment of the engine mode switching method of the present invention is proposed herein based on the above-described second embodiment of the engine mode switching method of the present invention.
Referring to fig. 3, fig. 3 is a schematic flow chart of a method for switching engine modes according to a third embodiment of the present invention.
After the above step S402, the method for switching the engine mode of the present invention may further include the steps of:
step B10: detecting a methanol liquid level line corresponding to the target engine;
in this embodiment, the terminal device invokes an internally configured detection device to detect a methanol fuel storage device storing methanol fuel in the target engine to determine a real-time methanol liquid level line of the target engine.
Step B20: controlling the target engine to switch from the methanol injection mode to the gasoline injection mode when the methanol liquid level line is lower than a preset methanol threshold value;
in this embodiment, the terminal device reads the storage device to obtain a methanol threshold preset by a technician, compares the obtained methanol level line with the methanol threshold, and adjusts the target engine so as to enable the target engine to enter a gasoline injection mode when the terminal device determines that the methanol level line of the target engine is lower than the methanol threshold.
Illustratively, for example, when the target engine is in a methanol injection mode or a methanol split injection mode, the terminal device invokes the detection device to detect a methanol fuel storage bin arranged in the target engine so as to obtain a real-time methanol liquid level line of the target engine, meanwhile, the terminal device reads the storage device to obtain a methanol threshold value, and compares the obtained methanol liquid level line with the methanol threshold value, then, when the terminal device determines that the methanol liquid level line is lower than the methanol threshold value, the terminal device determines that the cruising ability of the vehicle is insufficient, further adjusts the electromagnetic valve 1 in the methanol engine to an open state, and adjusts the electromagnetic valve 2 and the electromagnetic valve 3 to a closed state, and meanwhile, the terminal device controls the methanol pump to stop working, and controls the gasoline pump to extract gasoline fuel to be input to the fuel rail injector assembly 1, thereby switching the target engine to a gasoline injection mode in which the gasoline fuel is injected through the fuel rail injector assembly 1.
In another embodiment, when the terminal device detects that the methanol liquid level line is lower than the methanol threshold, the terminal device may further calculate a cruising range of the target engine in the methanol mode according to the residual amount of the methanol fuel, compare the cruising range with a preset cruising threshold, and further perform an operation of controlling the methanol engine to switch from the methanol injection mode to the gasoline injection mode when the cruising range is determined to be smaller than the cruising range threshold.
In addition, in another embodiment, the terminal device may further detect a gasoline liquid level line in the target engine when detecting that the methanol liquid level line is lower than a methanol threshold, and generate corresponding warning information and output the warning information through a display device configured in a vehicle corresponding to the methanol engine to remind a driver when the gasoline liquid level line is also lower than a preset gasoline threshold, and meanwhile, the terminal device determines a nearest gas station of the target engine according to map data stored in the storage device and guides the driver to travel to the target gas station.
In this embodiment, the terminal device invokes an internally configured detection device to detect a methanol fuel storage device storing methanol fuel in a target engine to determine a real-time methanol level line of the target engine, and then the terminal device reads the storage device to obtain a methanol threshold preset by a technician, compares the obtained methanol level line with the methanol threshold, and adjusts the target engine so as to enable the target engine to enter a gasoline injection mode when the terminal device determines that the methanol level line of the target engine is lower than the methanol threshold.
Therefore, the method adopts the mode that when the methanol engine enters the methanol injection mode, the residual amount of the methanol fuel is detected, so that the methanol engine is controlled to be switched to the gasoline injection mode when the residual amount of the methanol is insufficient, and the aim of keeping the vehicle cruising through the gasoline fuel when the methanol fuel reserve of the target vehicle is insufficient is fulfilled.
Further, a third embodiment of the engine mode switching method of the present invention based on the above-described engine mode switching method of the present invention is set forth herein.
Referring to fig. 4, fig. 4 is a schematic flow chart of a method for switching engine modes according to a fourth embodiment of the present invention.
After the above step S10, the engine mode switching method of the present invention may further include the steps of:
step C10: when the water temperature of the first engine is smaller than a preset first temperature threshold value, detecting a gasoline liquid level line corresponding to the target engine;
in this embodiment, when determining that the obtained first engine water temperature is less than the first temperature threshold, the terminal device invokes an internal detection device to detect a gasoline fuel storage device storing gasoline fuel in the target engine, so as to determine a real-time gasoline liquid level line of the target engine.
Step C20: when the gasoline liquid level line is lower than a preset gasoline threshold value, controlling the target engine to skip an oil rail cleaning mode and directly enter a gasoline injection mode;
in this embodiment, the terminal device reads the storage device to obtain a gasoline threshold preset by a technician, compares the obtained gasoline liquid level line with the gasoline threshold, and adjusts the target engine so as to make the target engine directly enter a gasoline injection mode by skipping an oil rail cleaning mode when the terminal device determines that the gasoline liquid level line of the target engine is lower than the gasoline threshold.
For example, when the methanol engine is in a start state, the terminal device calls an engine water temperature sensor to detect the methanol engine to obtain a first engine water temperature when the methanol engine is started, then the terminal device compares the obtained first engine water temperature with a first temperature threshold value of 25 ℃, and when the first engine water temperature is determined to be less than the first temperature threshold value of 25 ℃, the terminal device calls a detection device to detect a gasoline fuel storage bin arranged in the methanol engine to obtain a real-time gasoline liquid level line of the methanol engine, meanwhile, the terminal device reads the storage device to obtain a gasoline threshold value, and compares the obtained gasoline liquid level line with the gasoline threshold value, then when the terminal device determines that the gasoline liquid level line is lower than the gasoline threshold value, the terminal device adjusts a solenoid valve 1 in the methanol engine to an open state, and adjusts a solenoid valve 2 and a solenoid valve 3 to a closed state, and then the terminal device controls a gasoline pump to enter an operating state and extracts gasoline fuel to be input into a gasoline rail assembly 1, so that the methanol engine directly skips an oil rail cleaning mode when being started.
In this embodiment, when the terminal device determines that the obtained water temperature of the first engine is less than the first temperature threshold, the terminal device calls the detection device configured inside to detect the gasoline fuel storage device storing gasoline fuel in the target engine to determine a real-time gasoline liquid level line of the target engine, then the terminal device reads the storage device to obtain a gasoline threshold preset by a technician, and compares the obtained gasoline liquid level line with the gasoline threshold, and when the terminal device determines that the gasoline liquid level line of the target engine is lower than the gasoline threshold, the terminal device adjusts the target engine so as to enable the target engine to directly enter a gasoline injection mode by skipping an oil rail cleaning mode.
Therefore, the method adopts the mode of detecting the residual quantity of the gasoline fuel at the starting stage of the methanol engine and controlling the methanol engine to directly execute the gasoline injection mode when the residual quantity of the gasoline is detected to be insufficient, so that the aim of avoiding the problem that the residual gasoline fuel of the methanol engine is insufficient to raise the temperature of the engine to enable the methanol engine to be switched to the methanol injection mode in the process of cleaning an oil rail due to insufficient gasoline fuel storage of the methanol engine is fulfilled.
Further, based on the respective embodiments of the engine mode switching method of the present invention described above, the most preferable embodiment of the engine mode switching method of the present invention is presented herein.
Referring to fig. 6, fig. 6 is a flow chart illustrating a method for switching engine modes according to a preferred embodiment of the present invention.
As shown in fig. 6, in this embodiment, when the terminal device is running, first, an engine water temperature sensor arranged in the methanol engine is used to detect an engine water temperature and obtain a first engine water temperature T1 when the methanol engine is started, and at the same time, the terminal device reads the storage device to determine that a first temperature threshold preset by a technician is 25 ℃, then, the terminal device compares the obtained first engine water temperature with the first temperature threshold of 25 ℃, and when the terminal device determines that the first engine water temperature is lower than 25 ℃, the terminal device adjusts the methanol engine to open an electromagnetic valve 1 and an electromagnetic valve 3 in the methanol engine, so as to enable the methanol engine to enter an oil rail cleaning mode, and at the same time, the terminal device calls a timing device to detect a cleaning time when the methanol engine is in the oil rail cleaning mode;
then, the terminal device firstly reads the storage device to obtain a first time threshold value preset by a technician, and determines that the time length corresponding to the first time threshold value is 3s, the terminal device compares the obtained cleaning time with the first time threshold value, and when the flushing time is determined to be greater than or equal to 3s, the electromagnetic valve 3 is adjusted to be in a closed state so as to control the methanol engine to be switched from the oil rail cleaning mode to the gasoline injection mode, meanwhile, when the terminal device is in the methanol engine switching mode, the terminal device controls the engine water temperature sensor to detect the methanol engine again and obtain a second engine water temperature T2, the terminal device compares the obtained second engine water temperature T2 with the first temperature threshold value T1, and when the second engine water temperature T2 is determined to be greater than or equal to 25 ℃, the terminal device controls a gasoline pump in the methanol engine to stop working, and adjusts the electromagnetic valve 1 to be in the closed state so as to enable the oil rail injector assembly 1 in the methanol engine to end the gasoline injection mode so as to stop working, and at the same time, the terminal device controls a methanol pump arranged in the methanol engine to extract methanol fuel, and inputs the methanol fuel into the oil rail injector assembly 2 in the methanol engine to enter the methanol injection mode;
and then, the terminal device controls the engine water temperature sensor to detect the methanol engine again to obtain a third engine water temperature T3 of the methanol engine in a methanol injection mode, meanwhile, the terminal device reads the storage device to obtain a second temperature threshold T2 which is larger than 25 ℃ and preset by a technician, and determines that the second temperature threshold T2 is 45 ℃, and then the terminal device compares the third engine water temperature T3 with the second temperature threshold T2, and adjusts an electromagnetic valve in the methanol engine to be in an open state when the third engine water temperature T3 is determined to be larger than or equal to 45 ℃, so that the methanol fuel enters the oil rail fuel injector assembly 1 and the oil rail fuel injector assembly 2 simultaneously, and the methanol engine is switched to the methanol fractional injection mode from the methanol injection mode.
In this embodiment, when the terminal device determines that the first engine water temperature T1 is greater than or equal to 25 ℃, the terminal device determines to control the methanol engine to start directly through the methanol fuel, so as to directly adjust the electromagnetic valve 1, the electromagnetic valve 2, and the electromagnetic valve 3 in the methanol engine to be adjusted to the closed state, and control the methanol pump in the methanol engine to extract the methanol fuel and input the methanol fuel into the oil rail injector assembly 2, so as to directly enable the methanol engine to enter the methanol injection mode.
In addition, the present invention also provides a terminal device, which has an engine mode switching program operable on a processor, and when executing the engine mode switching program, the terminal device implements the steps of the engine mode switching method according to any one of the above embodiments.
The specific embodiment of the terminal device of the present invention is substantially the same as the embodiments of the engine mode switching method described above, and details are not described herein.
Furthermore, the present invention also provides a computer-readable storage medium having stored thereon a switching program of an engine mode, which when executed by a processor implements the steps of the switching method of the engine mode as described in any one of the above embodiments.
The specific embodiment of the computer-readable storage medium is substantially the same as the embodiments of the engine mode switching method, and will not be described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or the portions contributing to the prior art may be embodied in the form of a software product, the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, and includes several instructions for enabling a terminal device (which may be a terminal device having a solenoid valve control function and executing the engine mode switching method provided by the present invention, and specifically may be a terminal device such as a data storage control terminal, a PC, or a portable computer) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.
Claims (10)
1. A switching method of an engine mode, characterized by comprising the steps of:
the method comprises the steps of obtaining a first engine water temperature of a target engine, and when the first engine water temperature is smaller than a preset first temperature threshold value, controlling the target engine to enter an oil rail cleaning mode and obtaining the cleaning duration of the target engine in the oil rail cleaning mode;
when the washing duration is greater than or equal to a preset first time threshold, controlling the target engine to enter a gasoline injection mode, and acquiring a second engine water temperature of the target engine in the gasoline injection mode;
when the second engine water temperature is larger than or equal to the first temperature threshold value, controlling the target engine to enter a methanol injection mode, and acquiring a third engine water temperature of the target engine in the methanol injection mode;
when the water temperature of the third engine is greater than or equal to a preset second temperature threshold value, controlling the target engine to enter a methanol fractional injection mode; wherein the second temperature threshold is greater than the first temperature threshold.
2. The engine mode switching method according to claim 1, wherein a first solenoid valve that connects the first oil rail and a gasoline line and that switches the gasoline fuel of the first oil rail, a second solenoid valve that connects a methanol line and that switches the methanol fuel of the first oil rail, a third solenoid valve that is provided at a front end of the first oil rail and that connects the first oil rail and the second oil rail, a first oil rail, and a second oil rail are provided in the target engine;
the step of controlling the target engine to enter an oil rail cleaning mode and acquiring the cleaning duration of the target engine in the oil rail cleaning mode comprises the following steps:
adjusting the first electromagnetic valve and the third electromagnetic valve to be in an opening state, and adjusting the second electromagnetic valve to be in a closing state to control the target engine to enter an oil rail cleaning mode;
when the target engine enters the oil rail washing mode, detecting the injection time length of the target engine for injecting the gasoline fuel in the oil rail washing mode, and determining the injection time length as the washing time length.
3. The engine mode switching method according to claim 2, wherein the step of controlling the target engine to enter the gasoline injection mode includes:
adjusting the third solenoid valve to a closed state to cause the gasoline fuel to enter the first fuel rail, thereby causing the target engine to switch from the rail wash mode to a gasoline injection mode.
4. The engine mode switching method according to claim 3, characterized in that a methanol pump is further provided in the target engine, wherein the methanol pump extracts the methanol fuel and delivers the methanol fuel to the methanol line;
the step of controlling the target engine to enter a methanol injection mode includes:
controlling a methanol pump provided in the target engine to perform an oil pumping operation;
and when the oil pumping time of the methanol pump reaches a preset time length, adjusting the first electromagnetic valve to be switched to a closed state so that the methanol fuel enters the second oil rail, and accordingly switching the target engine from the gasoline injection mode to the methanol injection mode.
5. The engine mode switching method according to claim 4, wherein the step of controlling the target engine to enter the methanol split injection mode includes:
adjusting the second solenoid valve to switch to an open state to cause the methanol pump to deliver the extracted methanol fuel into the first oil rail and the second oil rail simultaneously;
and controlling the first oil rail and the second oil rail to inject the methanol fuel according to a preset injection ratio so as to switch the target engine from the methanol injection mode to the methanol split injection mode.
6. The engine mode switching method according to claim 5, characterized in that after the step of controlling the first oil rail and the second oil rail to inject the methanol fuel at respective preset injection ratios to switch the target engine from the methanol injection mode to the methanol split injection mode, the method further comprises:
detecting a methanol liquid level line corresponding to the target engine;
and when the methanol liquid level line is lower than a preset methanol threshold value, controlling the target engine to be switched from the methanol injection mode to the gasoline injection mode.
7. The engine mode switching method according to claim 1, characterized in that after the step of obtaining the first engine water temperature of the target engine, the method further comprises:
and when the water temperature of the first engine is greater than or equal to a preset first temperature threshold value, adjusting a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve which are arranged in the target engine to be in a closed state so as to control the target engine to enter a methanol injection mode.
8. The engine mode switching method according to claim 1, characterized in that after the step of obtaining the first engine water temperature of the target engine, the method further comprises:
when the water temperature of the first engine is smaller than a preset first temperature threshold value, detecting a gasoline liquid level line corresponding to the target engine;
and when the gasoline liquid level line is lower than a preset gasoline threshold value, controlling the target engine to skip the fuel rail cleaning mode and directly enter a gasoline injection mode.
9. A terminal device, characterized in that the terminal device comprises: a memory, a processor and an engine mode switching program stored on the memory and operable on the processor, the engine mode switching program when executed by the processor implementing the steps of the engine mode switching method of any one of claims 1 to 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a switching program of an engine mode, which when executed by a processor implements the steps of the switching method of an engine mode according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211645262.4A CN115929482A (en) | 2022-12-20 | 2022-12-20 | Engine mode switching method, terminal equipment and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211645262.4A CN115929482A (en) | 2022-12-20 | 2022-12-20 | Engine mode switching method, terminal equipment and computer storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115929482A true CN115929482A (en) | 2023-04-07 |
Family
ID=86652594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211645262.4A Pending CN115929482A (en) | 2022-12-20 | 2022-12-20 | Engine mode switching method, terminal equipment and computer storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115929482A (en) |
-
2022
- 2022-12-20 CN CN202211645262.4A patent/CN115929482A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101725422B (en) | Fuel injection control device and method for multi-fuel engine | |
| CN100523464C (en) | Fuel injection control apparatus designed to minimize combustion noise of engine | |
| CN100547236C (en) | The control gear that is used for vehicle | |
| CN100580240C (en) | Control apparatus for internal combustion engine | |
| EP1815121B1 (en) | Control apparatus of internal combustion engine | |
| US7894973B2 (en) | Method and device for operating an internal combustion engine | |
| KR101886529B1 (en) | Method f0r Improving Engine Start Performance using Hardware Wake-Up Period and Vehicle thereof | |
| CN101142395B (en) | Control device for internal combustion engine | |
| CN102477913B (en) | Fuel injection control apparatus for internal combustion engine | |
| CN100580239C (en) | Control device for internal combustion engine | |
| CN101287900A (en) | Control device of internal combustion engine | |
| CN101208506A (en) | Control apparatus for internal combustion engine | |
| JP2007046482A (en) | Control device for cylinder injection type internal combustion engine | |
| RU2669112C1 (en) | Engine fuel supply method and device | |
| US20120138018A1 (en) | Method for operating an internal combustion engine suitable for operation with gaseous and liquid fuels | |
| WO2016095567A1 (en) | Vehicle fuel injection control method, device and system | |
| CN113202676A (en) | Automobile starting control method, automobile starting control equipment, storage medium and automobile starting control device | |
| WO2008124207A2 (en) | Controlling locomotive smoke emissions and noise during transient engine operation | |
| CN115929482A (en) | Engine mode switching method, terminal equipment and computer storage medium | |
| CN100497910C (en) | Start-up control device and method of internal combustion engine | |
| JP4687141B2 (en) | Combustion control system for compression ignition internal combustion engine | |
| US6986334B2 (en) | Apparatus and method for start-delay warning of an LPI engine | |
| CN116398311A (en) | Multi-strategy fuel injection method, device, equipment and automobile | |
| CN102434302B (en) | High-pressure starting control method of direct injection gasoline engine | |
| JP2002349267A (en) | Combustion system of diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240221 Address after: 310000 1760 Jiangling Road, Binjiang District, Hangzhou, Zhejiang. Applicant after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region after: China Applicant after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Applicant after: Tianjin Alcohol Hydrogen Research and Development Co.,Ltd. Address before: 310000 1760 Jiangling Road, Binjiang District, Hangzhou, Zhejiang. Applicant before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region before: China Applicant before: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. |