Method, device and equipment for dynamic simulation test of fuel injection pump

Abstract

The embodiment of the application provides a fuel injection pump dynamics simulation test method, device and equipment, and relates to the technical field of vehicles, and the method comprises the following steps: acquiring driving end component parameters of a fuel injection pump for any type of fuel injection pump; inputting the driving end component parameters into a gear dynamics model to obtain simulation rotating speed fluctuation data of the fuel injection pump; acquiring plunger cavity component parameters of the fuel injection pump; inputting the plunger cavity component parameters into a performance calculation model to obtain a simulation pressure fluctuation curve of the fuel injection pump; generating a fuel injection pump dynamics model according to the simulation rotating speed fluctuation data, the simulation pressure fluctuation curve and pre-acquired model parameters; and performing simulation test according to the fuel injection pump dynamics model to obtain simulation data of the fuel injection pump, so that the error between fuel injection pump calculation parameters and actual parameters of the fuel injection pump is reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, apparatus and equipment for simulating the dynamics of a fuel injection pump. Background Technology

[0002] The fuel injection pump is a crucial component of an automotive diesel engine. It primarily consists of four parts: the pumping mechanism, the fuel supply regulation mechanism, the drive mechanism, and the pump body. During the development and design of the fuel injection pump, its reliability must be verified.

[0003] Currently, after the fuel injection pump is designed, its reliability needs to be calculated. The reliability calculation method typically uses empirical formulas, and adjustments are made to the fuel injection pump design based on the calculation results.

[0004] However, the existing technology has the following technical problems: the reliability calculation results obtained by empirical formulas have large errors, resulting in large errors between the calculated parameters and the actual parameters of the fuel injection pump. Summary of the Invention

[0005] This application provides a method, apparatus, and equipment for simulating the dynamics of an injection pump, which overcomes the problem that the reliability calculation results obtained by empirical formulas in traditional technologies have large errors, resulting in large errors between the calculated parameters and the actual parameters of the injection pump.

[0006] In a first aspect, embodiments of this application provide a method for simulating the dynamics of an injection pump, applied to computer equipment, comprising:

[0007] For any type of fuel injection pump, obtain the parameters of the drive-end components of the fuel injection pump;

[0008] The parameters of the drive end component are input into the gear dynamics model to obtain the simulated speed fluctuation data of the fuel injection pump;

[0009] Obtain the parameters of the plunger chamber component of the fuel injection pump;

[0010] The parameters of the plunger cavity component are input into the performance calculation model to obtain the simulated pressure fluctuation curve of the fuel injection pump;

[0011] Based on the simulated speed fluctuation data, the simulated pressure fluctuation curve, and the pre-acquired model parameters, a dynamic model of the fuel injection pump is generated.

[0012] Simulation tests were conducted based on the dynamic model of the fuel injection pump to obtain simulation data of the fuel injection pump.

[0013] In one possible design, generating the fuel injection pump dynamics model based on the simulated speed fluctuation data, the simulated pressure fluctuation curve, and pre-acquired model parameters includes: acquiring the dimensional and mass information of each component of the fuel injection pump; constructing a fuel injection pump dynamics framework based on the dimensional and mass information of each component; and inputting the simulated speed fluctuation data, the simulated pressure fluctuation curve, and the pre-acquired model parameters into the fuel injection pump dynamics framework to generate the fuel injection pump dynamics model.

[0014] In one possible design, after conducting simulation experiments based on the fuel injection pump dynamics model to obtain simulation data of the fuel injection pump, the method further includes: calculating simulation data of the fuel injection pump drive torque power curve based on the fuel injection pump dynamics model; comparing the simulation data with the fuel injection pump drive torque power curve obtained from actual experiments to obtain a comparison result; and outputting the comparison result.

[0015] In one possible design, comparing the simulation data with the fuel injection pump drive torque power curve obtained from the actual experiment to obtain a comparison result includes: based on the comparison result, determining the data error between the simulation data and the fuel injection pump drive torque power curve obtained from the actual experiment; if the data error exceeds a preset range, outputting information that the simulation effect of the fuel injection pump dynamics model is inaccurate, so as to prompt the regeneration of the fuel injection pump dynamics model.

[0016] In one possible design, before obtaining the parameters of the driving end component of the fuel injection pump, the method further includes: obtaining the dimensional and mass information of the driving end component; generating a gear dynamics model based on the dimensional and mass information of the driving end component; obtaining the dimensional and mass information of the plunger cavity component; and generating a performance calculation model based on the dimensional and mass information of the plunger cavity component.

[0017] Secondly, embodiments of this application provide a fuel injection pump dynamics simulation test device, applied to computer equipment, comprising:

[0018] The first acquisition module is used to acquire the parameters of the drive end components of the fuel injection pump for any model of fuel injection pump.

[0019] The first input module is used to input the parameters of the drive end component into the gear dynamics model to obtain the simulated speed fluctuation data of the fuel injection pump;

[0020] The second acquisition module is used to acquire parameters of the plunger chamber component of the fuel injection pump;

[0021] The second input module is used to input the parameters of the plunger cavity component into the performance calculation model to obtain the simulated pressure fluctuation curve of the fuel injection pump.

[0022] The first generation module is used to generate a fuel injection pump dynamics model based on the simulated speed fluctuation data, the simulated pressure fluctuation curve, and the pre-acquired model parameters.

[0023] The test module is used to conduct simulation tests based on the dynamic model of the fuel injection pump to obtain simulation data of the fuel injection pump.

[0024] In one possible design, the generation module includes: a first acquisition unit for acquiring the size and mass information of each component of the fuel injection pump; a construction unit for constructing a fuel injection pump dynamics framework based on the size and mass information of each component; and a generation unit for inputting the simulated speed fluctuation data and the simulated pressure fluctuation curve into the fuel injection pump dynamics framework to generate the fuel injection pump dynamics model.

[0025] Thirdly, embodiments of this application provide an electronic device, including: at least one processor and a memory;

[0026] The memory stores computer-executed instructions;

[0027] The at least one processor executes the computer execution instructions stored in the memory, causing the at least one processor to perform the fuel injection pump dynamics simulation test method as described in the first aspect above.

[0028] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions. When a processor executes the computer-executable instructions, it implements the fuel injection pump dynamics simulation test method described in the first aspect above.

[0029] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the fuel injection pump dynamics simulation test method as described in the first aspect above.

[0030] The fuel injection pump dynamics simulation test method, apparatus, and equipment provided in this application embodiment obtain simulated speed fluctuation data by inputting the parameters of the fuel injection pump drive end component into a gear dynamics model. The parameters of the plunger cavity component are input into a performance calculation model to obtain simulated pressure fluctuation curves. A fuel injection pump dynamics model is generated based on the simulated speed fluctuation data, simulated pressure fluctuation curves, and pre-acquired model parameters. Simulation tests are performed based on the fuel injection pump dynamics model to obtain simulation data. The simulation data is compared with actual experimental data of the fuel injection pump, reducing the error between the calculated and actual parameters of the fuel injection pump. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the system structure of a computer device provided in an embodiment of this application;

[0033] Figure 2 A schematic flowchart of a fuel injection pump dynamics simulation test method provided in one embodiment of this application;

[0034] Figure 3 This is a schematic diagram of the structure of a fuel injection pump dynamics simulation test device provided in one embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the hardware structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] In existing technologies, the reliability of fuel injection pumps needs to be calculated after the design is completed. The reliability calculation method for fuel injection pumps typically uses empirical formulas; however, the reliability calculation results obtained using empirical formulas have large errors, leading to significant discrepancies between the calculated parameters and the event parameters of the fuel injection pump.

[0038] To address this technical problem, this application provides the following technical concept: The inventors considered obtaining the parameters of the fuel injection pump drive end components and inputting them into a gear dynamics model to obtain simulated speed fluctuation data. The parameters of the fuel injection pump plunger cavity components were obtained and input into a performance calculation model to obtain simulated pressure fluctuation curves. Based on the simulated speed fluctuation data, simulated pressure fluctuation curves, and pre-acquired model parameters, a fuel injection pump dynamics model was generated. Simulation experiments were conducted using the dynamics model to compare the simulation data with the actual parameters of the fuel injection pump, thereby reducing the error between the calculated and actual parameters of the fuel injection pump.

[0039] This application provides a method for simulating the dynamics of an injection pump, which will be described in detail below with specific embodiments.

[0040] Figure 1 This is a schematic diagram of the system architecture of the computer device provided in an embodiment of this application. Figure 1 As shown, the computer device includes: a receiving device 101, a processor 102, and a display device 103.

[0041] It is understood that the structures illustrated in the embodiments of this application do not constitute a specific limitation on the item recognition method. In other feasible embodiments of this application, the above architecture may include more or fewer components than illustrated, or combine some components, or split some components, or arrange different components, which can be determined according to the actual application scenario and is not limited here. Figure 1 The components shown can be implemented in hardware, software, or a combination of both.

[0042] In the specific implementation process, the receiving device 101 can be an input / output interface or a communication interface, which can obtain the parameters of various components of the fuel injection pump.

[0043] The processor 102 can construct a dynamic model of the fuel injection pump based on the parameters of each component, and then conduct simulation experiments based on the dynamic model of the fuel injection pump to obtain simulation data of the fuel injection pump.

[0044] The display device 103 can be used to display the aforementioned simulation data, etc.

[0045] The display device can also be a touch screen, used to receive user commands while displaying the above content, so as to realize the operation interaction with the user.

[0046] It should be understood that the aforementioned processor can be implemented by reading instructions from memory and executing those instructions, or it can be implemented through chip circuitry.

[0047] Furthermore, the network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0048] Example 1

[0049] Figure 2 This is a flowchart illustrating a fuel injection pump dynamics simulation test method according to one embodiment of this application. The executing entity in this embodiment can be a computer device, specifically other terminal devices with similar functions; however, this embodiment does not impose any particular limitations. Figure 2 As shown, the method includes:

[0050] S201: For any type of fuel injection pump, obtain the parameters of the drive end components of the fuel injection pump.

[0051] In this embodiment, the drive end components of the fuel injection pump include a camshaft and a tappet assembly.

[0052] The parameters of the drive-end components include, but are not limited to, the mass, moment of inertia, stiffness, and rotational speed fluctuation of the drive-end components.

[0053] S202: Input the parameters of the drive-end components into the gear dynamics model to obtain the simulated speed fluctuation data of the fuel injection pump.

[0054] In this embodiment, the simulated speed fluctuation data is the speed fluctuation data at the fuel injection pump drive.

[0055] In this embodiment, the speed fluctuation data refers to the speed change curve of the fuel injection pump drive position. The horizontal axis of the curve is time, and the vertical axis is the actual speed, representing the speed change.

[0056] The gear dynamics model was constructed using simulation software that simulates vehicle transmission systems and engine types.

[0057] S203: Obtain parameters of the plunger chamber components of the fuel injection pump.

[0058] In this embodiment, the plunger cavity component includes a plunger sleeve, a plunger, and a plunger spring.

[0059] The parameters of the plunger cavity component include, but are not limited to, the mass, moment of inertia, stiffness, and rotational speed fluctuation of the plunger cavity component.

[0060] S204: Input the plunger cavity component parameters into the performance calculation model to obtain the simulated pressure fluctuation curve of the fuel injection pump.

[0061] In this embodiment, the simulated pressure fluctuation curve represents the force situation at the end of the fuel injection pump dynamic transmission chain.

[0062] The aforementioned performance calculation model was constructed using simulation software that simulates vehicle transmission systems and engine types.

[0063] In this embodiment, the horizontal axis of the pressure fluctuation curve represents time, and the vertical axis represents the changing pressure inside the plunger cavity. The entire curve represents the change of plunger cavity pressure over time.

[0064] S205: Generate a dynamic model of the fuel injection pump based on simulated speed fluctuation data, simulated pressure fluctuation curves, and pre-acquired model parameters.

[0065] Specifically, step S205 includes:

[0066] S2051: Obtain the dimensional and mass information of each component of the fuel injection pump.

[0067] In this embodiment, the components of the fuel injection pump include a high-pressure fuel line connector, a delivery valve spring, a delivery valve seat, a delivery valve, a plunger sleeve, a plunger, a plunger spring, a fuel quantity control mechanism, a roller body, and a camshaft.

[0068] S2052: Construct the dynamic framework of the fuel injection pump based on the dimensional and mass information of each component.

[0069] Specifically, the size and mass information of each component of the fuel injection pump are identified through the hardware device identification function of the simulation software. The size and mass information of each component of the fuel injection pump are then transmitted to the computer simulation software, and a dynamic model of the fuel injection pump is constructed through the simulation software.

[0070] Alternatively, the simulation software can be simulation software that simulates the vehicle's transmission system and engine type.

[0071] S2053: Input the simulated speed fluctuation data, simulated pressure fluctuation curve and pre-acquired model parameters into the fuel injection pump dynamics framework to generate the fuel injection pump dynamics model.

[0072] In this embodiment, the model parameters include the mass of each component of the fuel injection pump, the moment of inertia of each component, the stiffness of each component, the torsional stiffness of the camshaft, the speed fluctuation of the drive end, the pressure fluctuation of the plunger chamber, the bearing support stiffness, the stiffness of the plunger spring, and the mass of the plunger spring.

[0073] S206: Conduct simulation experiments based on the dynamic model of the fuel injection pump to obtain simulation data of the fuel injection pump.

[0074] In this embodiment, the simulation data of the fuel injection pump refers to the various data of the fuel injection pump under the simulated normal operation of a car.

[0075] In summary, the fuel injection pump dynamics simulation test method provided in this embodiment obtains simulated speed fluctuation data by inputting the parameters of the fuel injection pump drive end components into a gear dynamics model. Simulated pressure fluctuation curves are obtained by inputting the plunger cavity component parameters into a performance calculation model. A fuel injection pump dynamics model is generated based on the simulated speed fluctuation data, simulated pressure fluctuation curves, and pre-acquired model parameters. Simulation tests are then conducted based on the fuel injection pump dynamics model to obtain simulation data. Comparing the simulation data with actual experimental data of the fuel injection pump reduces the error between the calculated and actual parameters of the fuel injection pump.

[0076] Example 2

[0077] In one embodiment of this application, following step S206 of the above embodiment, this embodiment focuses on describing the process of obtaining simulation data through a dynamic model and comparing the simulation data with actual experimental data. The method includes:

[0078] S207: Simulation data of the fuel injection pump drive torque power curve obtained from the fuel injection pump dynamic model.

[0079] In this embodiment, the fuel injection pump drive torque power curve is obtained by collecting fuel injection pump drive torque data at the fuel injection pump drive end. The fuel injection pump drive torque power curve shows the trend of the overall dynamic action of the fuel injection pump.

[0080] S208: Compare the simulation data with the fuel injection pump drive torque power curve obtained from the actual experiment to obtain the comparison results.

[0081] Specifically, step S208 includes:

[0082] S2081: Based on the comparison results, determine the data error between the simulation data and the fuel injection pump drive torque power curve obtained from the actual experiment.

[0083] In this embodiment, the data error is the difference between the vertical coordinates of the driving torque power curve of the simulation data and the torque power curve obtained from the actual experiment.

[0084] S2082: If the data error exceeds the preset range, output information that the simulation effect of the fuel injection pump dynamics model is inaccurate, so as to prompt the regeneration of the fuel injection pump dynamics model.

[0085] Specifically, if the simulation results are inaccurate, the user will be prompted to re-obtain the parameters of the drive end components and the plunger cavity components, and rebuild the fuel injection pump dynamics model.

[0086] S209: Output the comparison results.

[0087] Specifically, if the data error does not exceed the preset range, the first comparison result is output. If the data error exceeds the preset range, the second comparison result is output.

[0088] The specific form of the output comparison results can be displayed on the display interface or as a voice prompt.

[0089] In summary, the fuel injection pump dynamics simulation test method provided in this embodiment calculates the simulation data of the driving torque power curve through the dynamic model of the fuel injection pump, compares the actual experimental data with the simulation data to obtain the data error, and adjusts the dynamic model of the fuel injection pump according to the data error, thereby improving the dynamic reliability of the fuel injection pump.

[0090] Example 3

[0091] In one embodiment of this application, prior to step S201 of the above embodiment, this embodiment focuses on describing the process of constructing a gear dynamics model and a performance calculation model. The method includes:

[0092] S2001: Obtain the size and mass information of the drive-end components.

[0093] In this embodiment, the drive-end components include a camshaft and a tappet assembly.

[0094] S2002: Generate a gear dynamics model based on the size and mass information of the drive-end components.

[0095] Specifically, the size and mass of the drive-end components are identified by hardware devices, and the size and mass information is transmitted to a computer. A gear dynamics model is then constructed using simulation software.

[0096] S2003: Obtain the dimensional and mass information of the plunger cavity components.

[0097] In this embodiment, the plunger cavity component includes a plunger sleeve, a plunger, and a plunger spring.

[0098] S2004: Generate a performance calculation model based on the size and mass information of the plunger cavity components.

[0099] Specifically, the size and mass of the plunger cavity components are identified through hardware devices, and the size and mass information is transmitted to a computer. A performance calculation model is then built using simulation software.

[0100] In summary, the fuel injection pump dynamics simulation test method provided in this embodiment generates a gear dynamics model by acquiring the dimensional and mass information of the drive-end components. It also generates a performance calculation model by acquiring the dimensional and mass information of the plunger cavity components. By establishing the gear dynamics model to calculate simulated speed fluctuation data and by establishing the performance calculation model to calculate simulated pressure fluctuation curves, it provides parameters for establishing the fuel injection pump dynamics model, thus improving computational efficiency.

[0101] Example 4

[0102] Figure 3 This is a schematic diagram of the structure of a fuel injection pump dynamics simulation test device provided in one embodiment of this application. Figure 3 As shown, the fuel injection pump dynamics simulation test device is applied to computer equipment and includes: a first acquisition module 301, a first input module 302, a second acquisition module 303, a second input module 304, a first generation module 305, and a test module 306.

[0103] The first acquisition module 301 is used to acquire the parameters of the drive end components of the fuel injection pump for any type of fuel injection pump.

[0104] The first input module 302 is used to input the parameters of the drive end component into the gear dynamics model to obtain the simulated speed fluctuation data of the fuel injection pump.

[0105] The second acquisition module 303 is used to acquire parameters of the plunger chamber component of the fuel injection pump.

[0106] The second input module 304 is used to input the parameters of the plunger cavity components into the performance calculation model to obtain the simulated pressure fluctuation curve of the fuel injection pump.

[0107] The first generation module 305 is used to generate a dynamic model of the fuel injection pump based on the simulated speed fluctuation data, the simulated pressure fluctuation curve, and the pre-acquired model parameters.

[0108] The test module 306 is used to conduct simulation tests based on the dynamic model of the fuel injection pump to obtain simulation data of the fuel injection pump.

[0109] In one embodiment of this application, the first generation module 305 includes:

[0110] The first acquisition unit 3051 is used to acquire the size and mass information of each component of the fuel injection pump.

[0111] The building unit 3052 is used to build the dynamic framework of the fuel injection pump based on the size and mass information of each component.

[0112] The generation unit 3053 is used to input the simulated speed fluctuation data and simulated pressure fluctuation curve into the fuel injection pump dynamics framework to generate the fuel injection pump dynamics model.

[0113] In one embodiment of this application, the fuel injection pump dynamics simulation test apparatus further includes:

[0114] The calculation module 307 is used to calculate the simulation data of the fuel injection pump drive torque power curve based on the fuel injection pump dynamic model.

[0115] The comparison module 308 is used to compare the simulation data with the fuel injection pump drive torque power curve obtained from the actual experiment to obtain the comparison results.

[0116] Output module 309 is used to output comparison results.

[0117] In one embodiment of this application, the comparison module 308 includes:

[0118] The second acquisition unit 3081 is used to acquire and judge the data error between the simulation data and the fuel injection pump drive torque power curve obtained from the actual experiment based on the comparison results.

[0119] Output unit 3082, if the data error exceeds the preset range, outputs information that the simulation effect of the fuel injection pump dynamics model is inaccurate, so as to prompt the regeneration of the fuel injection pump dynamics model.

[0120] In one embodiment of this application, the fuel injection pump dynamics simulation test apparatus further includes:

[0121] The third acquisition module 310 is used to acquire the size and mass information of the drive-end components.

[0122] The second generation module 311 is used to generate a gear dynamics model based on the size and mass information of the drive end components.

[0123] The fourth acquisition module 312 is used to acquire the size and mass information of the plunger cavity component.

[0124] The third generation module 313 is used to generate a performance calculation model based on the size and mass information of the plunger cavity component.

[0125] The apparatus provided in this embodiment can be used to execute the technical solutions of the above method embodiments. Its implementation principle and technical effects are similar, and will not be described again here.

[0126] Example 5

[0127] Figure 4 This is a schematic diagram of the hardware structure of the electronic device provided in an embodiment of this application. Figure 4 As shown, the electronic device of this embodiment includes: at least one processor 401 and a memory 402; the memory stores computer execution instructions; the at least one processor executes the computer execution instructions stored in the memory, causing the at least one processor to execute the above-described fuel injection pump dynamics simulation test method.

[0128] Alternatively, the memory 402 can be either standalone or integrated with the processor 401.

[0129] When the memory 402 is set up independently, the electronic device also includes a bus 403 for connecting the memory 402 and the processor 401.

[0130] Example 6

[0131] This application also provides a computer-readable storage medium storing computer-executable instructions. When the processor executes the computer-executable instructions, the above-described fuel injection pump dynamics simulation test method is implemented.

[0132] Example 7

[0133] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the fuel injection pump dynamics simulation test method as described above.

[0134] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for instance, the division of modules described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or modules, and may be electrical, mechanical, or other forms.

[0135] The modules described above as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to implement the solution of this embodiment according to actual needs.

[0136] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing unit, or each module can exist physically separately, or two or more modules can be integrated into one unit. The unit composed of the above modules can be implemented in hardware or in the form of hardware plus software functional units.

[0137] The integrated modules implemented as software functional modules described above can be stored in a computer-readable storage medium. These software functional modules, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods described in the various embodiments of this application.

[0138] It should be understood that the aforementioned processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. A general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly manifested as being executed by a hardware processor, or executed by a combination of hardware and software modules within the processor.

[0139] The memory may include high-speed RAM, and may also include non-volatile storage (NVM), such as at least one disk storage device, and may also be a USB flash drive, external hard drive, read-only memory, disk or optical disc, etc.

[0140] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0141] The aforementioned storage medium can be implemented from any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The storage medium can be any available medium accessible to general-purpose or special-purpose computers.

[0142] An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Alternatively, the storage medium can be an integral part of the processor. Both the processor and the storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and storage medium can exist as discrete components in an electronic device or host device.

[0143] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for simulating the dynamics of an injection pump, characterized in that, Applied to computer equipment, including: For any type of fuel injection pump, obtain the parameters of the drive end components of the fuel injection pump, wherein the parameters of the drive end components include the mass, moment of inertia, stiffness and speed fluctuation of the drive end components; The parameters of the drive end component are input into the gear dynamics model to obtain the simulated speed fluctuation data of the fuel injection pump; Obtain the parameters of the plunger chamber component of the fuel injection pump, wherein the plunger chamber component parameters include the mass, moment of inertia, stiffness and rotational speed fluctuation of the plunger chamber component; The parameters of the plunger cavity component are input into the performance calculation model to obtain the simulated pressure fluctuation curve of the fuel injection pump; Based on the simulated speed fluctuation data, the simulated pressure fluctuation curve, and the pre-acquired model parameters, a dynamic model of the fuel injection pump is generated. The pre-acquired model parameters include the mass of each component of the fuel injection pump, the moment of inertia of each component, the stiffness of each component, the torsional stiffness of the camshaft, the speed fluctuation of the drive end, the pressure fluctuation of the plunger chamber, the bearing support stiffness, the stiffness of the plunger spring, and the mass of the plunger spring. Simulation tests were conducted based on the dynamic model of the fuel injection pump to obtain simulation data of the fuel injection pump.

2. The method according to claim 1, characterized in that, The step of generating a fuel injection pump dynamics model based on the simulated speed fluctuation data, the simulated pressure fluctuation curve, and the pre-acquired model parameters includes: Obtain the dimensional and mass information of each component of the fuel injection pump; Based on the dimensional and mass information of each component, a dynamic framework for the fuel injection pump is constructed. The simulated speed fluctuation data, the simulated pressure fluctuation curve, and the pre-acquired model parameters are input into the fuel injection pump dynamics framework to generate the fuel injection pump dynamics model.

3. The method according to claim 1, characterized in that, After conducting simulation experiments based on the fuel injection pump dynamics model to obtain simulation data for the fuel injection pump, the method further includes: Simulation data of the fuel injection pump drive torque power curve were obtained based on the fuel injection pump dynamic model. The simulation data was compared with the fuel injection pump drive torque power curve obtained from the actual experiment to obtain the comparison results; Output the comparison results.

4. The method according to claim 3, characterized in that, The comparison of the simulation data with the fuel injection pump drive torque power curve obtained from actual experiments to obtain the comparison results includes: Based on the comparison results, the data error between the simulation data and the fuel injection pump drive torque power curve obtained from the actual experiment is determined. If the data error exceeds the preset range, the simulation effect of the fuel injection pump dynamics model is not accurate, prompting the fuel injection pump dynamics model to be regenerated.

5. The method according to any one of claims 1 to 4, characterized in that, Before obtaining the parameters of the drive end component of the fuel injection pump, the process also includes: Obtain the dimensional and mass information of the drive-end components; A gear dynamics model is generated based on the size and mass information of the drive-end components. Obtain the dimensional and mass information of the plunger cavity components; A performance calculation model is generated based on the size and mass information of the plunger cavity component.

6. A dynamic simulation test device for an injection pump, characterized in that, Applied to computer equipment, including: The first acquisition module is used to acquire the parameters of the drive end component of the fuel injection pump for any type of fuel injection pump, wherein the parameters of the drive end component include the mass, moment of inertia, stiffness and speed fluctuation of the drive end component. The first input module is used to input the parameters of the drive end component into the gear dynamics model to obtain the simulated speed fluctuation data of the fuel injection pump; The second acquisition module is used to acquire the parameters of the plunger chamber component of the fuel injection pump, wherein the plunger chamber component parameters include the mass, moment of inertia, stiffness and rotational speed fluctuation of the plunger chamber component; The second input module is used to input the parameters of the plunger cavity component into the performance calculation model to obtain the simulated pressure fluctuation curve of the fuel injection pump. The first generation module is used to generate a dynamic model of the fuel injection pump based on the simulated speed fluctuation data, the simulated pressure fluctuation curve and the pre-acquired model parameters. The pre-acquired model parameters include the mass of each component of the fuel injection pump, the moment of inertia of each component, the stiffness of each component, the torsional stiffness of the camshaft, the speed fluctuation of the drive end, the pressure fluctuation of the plunger cavity, the bearing support stiffness, the stiffness of the plunger spring and the mass of the plunger spring. The test module is used to conduct simulation tests based on the dynamic model of the fuel injection pump to obtain simulation data of the fuel injection pump.

7. The apparatus according to claim 6, characterized in that, The generation module includes: The first acquisition unit is used to acquire the size and mass information of each component of the fuel injection pump; A construction unit is used to construct the dynamic framework of the fuel injection pump based on the size and mass information of each component; The generation unit is used to input the simulated speed fluctuation data and the simulated pressure fluctuation curve into the fuel injection pump dynamics framework to generate the fuel injection pump dynamics model.

8. An electronic device, characterized in that, include: At least one processor and memory; The memory stores computer-executed instructions; The at least one processor executes the computer execution instructions stored in the memory, causing the at least one processor to perform the fuel injection pump dynamics simulation test method as described in any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by the processor, implement the fuel injection pump dynamics simulation test method as described in any one of claims 1 to 5.

10. A computer program product, characterized in that, It includes a computer program that, when executed by a processor, implements the fuel injection pump dynamics simulation test method as described in any one of claims 1 to 5.

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