Transient response capability testing method and device, electronic equipment and storage medium

Abstract

The invention relates to the technical field of engines, in particular to a transient response capability testing method and device, electronic equipment and a storage medium. Acquiring an initial working condition point corresponding to the target engine; initial working condition information corresponding to the initial working condition point and the initial throttle opening degree corresponding to the initial working condition point are input into a preset transient calculation model corresponding to the target engine, the initial throttle opening degree is controlled to be changed to the target throttle opening degree within a preset time period, and first transient response performance data corresponding to the target engine are obtained; according to the first transient response performance data, whether the target engine reaches a target working condition point or not is judged; and according to the judgment result, the transient response capability corresponding to the target engine is determined. And the accuracy of the transient response capability corresponding to the determined target engine is ensured. The transient response capability of the engine can be efficiently and accurately tested, the existence period is short, and the cost is low.

Description

Technical Field

[0001] The present invention relates to the field of engine technology, and in particular to a transient response capability testing method, device, electronic equipment and storage medium. Background Art

[0002] The transient response capability of an engine refers to the ability of an engine to respond quickly and accurately to load changes in a short period of time. This is crucial to the performance and safety of power systems such as automobiles, aircraft, and ships. Good transient response capability ensures that the engine can quickly adapt to load changes and avoid performance degradation or damage caused by untimely response.

[0003] Traditional testing methods mainly use bench tests, which simulate actual working conditions by conducting experiments on an engine test bench and recording the changes in engine torque over time to evaluate the engine's transient response capability. However, this method has the following problems: (1) Long cycle: bench tests require a certain amount of time to complete, and may take days or even weeks from preparation to completion. (2) High cost: bench tests require professional test equipment and environment, which is costly.

[0004] How to efficiently test the transient response capability of the engine has become an urgent problem to be solved. Summary of the invention

[0005] In view of this, the present invention provides a transient response capability testing method, device, electronic device and storage medium to solve the problem of how to efficiently test the transient response capability of an engine.

[0006] In a first aspect, the present invention provides a method for testing transient response capability, the method comprising:

[0007] Obtaining the initial operating point corresponding to the target engine;

[0008] Inputting initial operating condition information corresponding to the initial operating condition point and the initial throttle opening corresponding to the initial operating condition point into a preset transient calculation model corresponding to the target engine, and controlling the initial throttle opening to change to a target throttle opening within a preset time period to obtain first transient response performance data corresponding to the target engine;

[0009] determining whether the target engine has reached a target operating point according to the first transient response performance data;

[0010] According to the judgment result, the transient response capability corresponding to the target engine is determined.

[0011] The transient response capability test method provided in the embodiment of the present application obtains the initial operating point corresponding to the target engine. Then, the initial operating condition information corresponding to the initial operating point and the initial throttle opening corresponding to the initial operating point are input into the preset transient calculation model corresponding to the target engine, and within the preset time period, the initial throttle opening is controlled to change to the target throttle opening, and the first transient response performance data corresponding to the target engine is obtained, thereby ensuring the accuracy of the first transient response performance data corresponding to the target engine obtained. Therefore, it is possible to judge whether the target engine has reached the target operating point based on the first transient response performance data corresponding to the target engine; then, based on the judgment result, the transient response capability corresponding to the target engine is determined, thereby ensuring the accuracy of the determined transient response capability corresponding to the target engine. The transient response capability of the engine is tested efficiently and accurately, with a short cycle and low cost.

[0012] In an optional implementation, the initial operating condition information corresponding to the initial operating condition point and the initial throttle opening corresponding to the initial operating condition point are input into a preset transient calculation model corresponding to the target engine. The previous method includes:

[0013] According to the property information of the target engine, an initial thermodynamic model corresponding to the target engine is constructed; the initial thermodynamic model includes at least one of an engine intake system, a supercharger and a supercharged intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system;

[0014] Adjusting the initial thermodynamic model to generate a target thermodynamic model corresponding to the target engine;

[0015] The target thermodynamic model is transformed to generate a preset transient calculation model.

[0016] The transient response capability test method provided in the embodiment of the present application builds an initial thermodynamic model corresponding to the target engine according to the property information of the target engine, thereby ensuring the accuracy of the initial thermodynamic model corresponding to the built target engine. The initial thermodynamic model is adjusted to generate a target thermodynamic model corresponding to the target engine, thereby ensuring the accuracy of the generated target thermodynamic model corresponding to the target engine. The target thermodynamic model is transformed to generate a preset transient calculation model, thereby ensuring the accuracy of the generated preset transient calculation model.

[0017] In an optional implementation, the initial thermodynamic model is adjusted to generate a target thermodynamic model corresponding to the target engine, including:

[0018] Obtain the test operating point corresponding to the target engine;

[0019] Input the test condition data corresponding to each test condition point into the steady-state test bench corresponding to the target engine, and output the real test data corresponding to each test condition point and the real test reverse drag friction work data;

[0020] Based on the real test data and the real test reverse drag friction work data, the initial thermodynamic model is adjusted to generate the target thermodynamic model corresponding to the target engine.

[0021] The transient response capability test method provided in the embodiment of the present application obtains the test operating point corresponding to the target engine; inputs the test operating data corresponding to each test operating point into the steady-state test bench corresponding to the target engine, outputs the real test data corresponding to each test operating point and the real test reverse drag friction work data, and ensures the accuracy of the output real test data corresponding to each test operating point and the real test reverse drag friction work data. Based on the real test data and the real test reverse drag friction work data, the initial thermodynamic model is adjusted to generate the target thermodynamic model corresponding to the target engine, and the accuracy of the generated target thermodynamic model corresponding to the target engine is ensured.

[0022] In an optional implementation, based on the real test data and the real test reverse drag friction work data, the initial thermodynamic model is adjusted to generate a target thermodynamic model corresponding to the target engine, including:

[0023] Input the test condition data corresponding to each test condition point into the initial thermodynamic model, and output the simulation test data and the simulation reverse drag friction work data corresponding to each test condition point;

[0024] The simulation test data are compared with the real test data, and the simulation reverse dragging friction work data are compared with the real test reverse dragging friction work data;

[0025] According to the comparison results, the parameters of the initial thermodynamic model are adjusted until the test data difference between the simulation test data and the actual test data is less than the first preset difference, and the friction work data difference between the simulation reverse dragging friction work data and the actual test reverse dragging friction work data is less than the second preset difference, so as to obtain the target thermodynamic model.

[0026] The transient response capability test method provided in the embodiment of the present application inputs the test condition data corresponding to each test condition point into the initial thermodynamic model, outputs the simulation test data and the simulation reverse drag friction work data corresponding to each test condition point, and ensures the accuracy of the simulation test data and the simulation reverse drag friction work data corresponding to each test condition point. The simulation test data are compared with the real test data, and the simulation reverse drag friction work data are compared with the real test reverse drag friction work data; according to the comparison result, the parameters of the initial thermodynamic model are adjusted until the test data difference between the simulation test data and the real test data is less than the first preset difference, and the friction work data difference between the simulation reverse drag friction work data and the real test reverse drag friction work data is less than the second preset difference, and the target thermodynamic model is obtained, thereby ensuring the accuracy of the obtained target thermodynamic model, and avoiding the inaccuracy of the preset transient calculation model obtained based on the target thermodynamic model due to the inaccuracy of the target thermodynamic model.

[0027] In an optional implementation, determining the transient response capability corresponding to the target engine according to the judgment result includes:

[0028] If the target engine reaches the target operating point, it is determined that the transient response capability corresponding to the target engine is the first level;

[0029] If the target engine does not reach the target operating point, the transient response capability corresponding to the target engine is determined to be the second level; wherein the first level is better than the second level.

[0030] The transient response capability testing method provided in the embodiment of the present application determines that the transient response capability corresponding to the target engine is at the first level if the target engine reaches the target operating point; if the target engine does not reach the target operating point, the transient response capability corresponding to the target engine is determined to be at the second level; wherein the first level is superior to the second level, thereby ensuring the accuracy of the determined transient response capability corresponding to the target engine.

[0031] In an optional embodiment, the preset transient calculation model includes at least one of an engine intake system, a supercharger and a supercharged intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system corresponding to the target engine; if the target engine does not reach the target operating point, after determining that the transient response capability corresponding to the target engine is at the second level, the method includes:

[0032] Updating the component parameters of the engine components in the preset transient calculation model to generate a target transient calculation model; the engine components include at least one of an engine intake system, a supercharger and a supercharger intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system;

[0033] Inputting the initial throttle opening corresponding to the initial operating point into the target transient calculation model, and controlling the initial throttle opening to change to the target throttle opening within a preset time period to obtain second transient response performance data corresponding to the target engine;

[0034] comparing the second transient response performance data with the first transient response performance data;

[0035] According to the comparison result, it is determined whether the transient response capability of the target engine after the component parameters of the engine component are replaced is higher than the transient response capability of the target engine before the replacement.

[0036] The transient response capability test method provided in the embodiment of the present application updates the component parameters of the engine components in the preset transient calculation model, generates a target transient calculation model, and ensures that the generated target transient calculation model is different from the engine components corresponding to the preset transient calculation model. Then, the initial throttle opening corresponding to the initial operating point is input into the target transient calculation model, and within a preset time period, the initial throttle opening is controlled to change to the target throttle opening, and the second transient response performance data corresponding to the target engine is obtained. The second transient response performance data is compared with the first transient response performance data; thus, according to the comparison result, it is determined whether the transient response capability of the target engine after the component parameters of the engine components are replaced is higher than the transient response capability of the target engine before the replacement, and then the influence of the replaced engine components on the transient response capability of the engine can be determined.

[0037] In an optional embodiment, the method further includes:

[0038] comparing the second transient response performance data corresponding to each target transient calculation model after the component parameters of the engine component are replaced;

[0039] Based on the comparison results, the optimal engine components are determined.

[0040] The transient response capability testing method provided in the embodiment of the present application compares the second transient response performance data corresponding to each target transient calculation model after the component parameters of the engine components are replaced; based on the comparison results, the influence of each replaced engine component on the transient response performance of the engine is determined, so that the optimal engine component can be determined, and the transient response capability of the engine can be improved, thereby eliminating the need to test each engine component of the engine on a test bench.

[0041] In a second aspect, the present invention provides a transient response capability testing device, the device comprising:

[0042] An acquisition module, used to acquire an initial operating point corresponding to a target engine;

[0043] An input module, used to input the initial operating condition information corresponding to the initial operating condition point and the initial throttle opening corresponding to the initial operating condition point into a preset transient calculation model corresponding to the target engine, and control the initial throttle opening to change to the target throttle opening within a preset time period, and obtain first transient response performance data corresponding to the target engine;

[0044] A judgment module, used for judging whether the target engine reaches a target operating point according to the first transient response performance data;

[0045] The determination module is used to determine the transient response capability corresponding to the target engine according to the judgment result.

[0046] The transient response capability test device provided in the embodiment of the present application obtains the initial operating point corresponding to the target engine. Then, the initial operating condition information corresponding to the initial operating point and the initial throttle opening corresponding to the initial operating point are input into the preset transient calculation model corresponding to the target engine, and within the preset time period, the initial throttle opening is controlled to change to the target throttle opening, and the first transient response performance data corresponding to the target engine is obtained, thereby ensuring the accuracy of the first transient response performance data corresponding to the target engine obtained. Therefore, it is possible to judge whether the target engine has reached the target operating point based on the first transient response performance data corresponding to the target engine; then, based on the judgment result, the transient response capability corresponding to the target engine is determined, thereby ensuring the accuracy of the determined transient response capability corresponding to the target engine. The transient response capability of the engine is efficiently and accurately tested, and the existence period is short and the cost is low.

[0047] In a third aspect, the present invention provides an electronic device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the transient response capability testing method of the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0048] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the transient response capability testing method of the first aspect or any corresponding embodiment thereof.

[0049] In a fifth aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the transient response capability testing method of the first aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 is a flow chart of a transient response capability testing method according to an embodiment of the present invention;

[0052] Figure 2 is a schematic diagram of torque transient response of a target engine according to an embodiment of the present invention;

[0053] Figure 3 is a flow chart of another transient response capability testing method according to an embodiment of the present invention;

[0054] Figure 4 is a flow chart of another transient response capability testing method according to an embodiment of the present invention;

[0055] Figure 5 is a structural block diagram of a transient response capability testing device according to an embodiment of the present invention;

[0056] Figure 6 is a structural block diagram of another transient response capability testing device according to an embodiment of the present invention;

[0057] Figure 7 It is a schematic diagram of the hardware structure of the electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0059] The transient response capability of an engine refers to the ability of an engine to respond quickly and accurately to load changes in a short period of time. This is crucial to the performance and safety of power systems such as automobiles, aircraft, and ships. Good transient response capability ensures that the engine can quickly adapt to load changes and avoid performance degradation or damage caused by untimely response.

[0060] Traditional testing methods mainly use bench tests, which simulate actual working conditions by conducting experiments on an engine test bench and recording the changes in engine torque over time to evaluate the engine's transient response capability. However, this method has the following problems: (1) Long cycle: bench tests require a certain amount of time to complete, and may take days or even weeks from preparation to completion. (2) High cost: bench tests require professional test equipment and environment, which is costly.

[0061] How to efficiently test the transient response capability of the engine has become an urgent problem to be solved.

[0062] It should be noted that the method for transient response capability testing provided in the embodiment of the present application, its execution subject can be a device for transient response capability testing, and the device for transient response capability testing can be implemented as part or all of an electronic device through software, hardware, or a combination of software and hardware, wherein the electronic device can be a server or a terminal, wherein the server in the embodiment of the present application can be a single server or a server cluster composed of multiple servers, and the terminal in the embodiment of the present application can be a smart phone, a personal computer, a tablet computer, a wearable device, and other intelligent hardware devices such as an intelligent robot. In the following method embodiments, the execution subject is an electronic device as an example for explanation.

[0063] According to an embodiment of the present invention, an embodiment of a transient response capability testing method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0064] In this embodiment, a transient response capability testing method is provided, which can be used for the above-mentioned electronic device. Figure 1 is a flow chart of a transient response capability testing method according to an embodiment of the present invention. Figure 1 As shown, the process includes the following steps:

[0065] Step S101, obtaining the initial operating point corresponding to the target engine.

[0066] Specifically, the electronic device may receive an initial operating point corresponding to the target engine input by a user, and may also receive an initial operating point corresponding to the target engine sent by other devices.

[0067] The embodiment of the present application does not specifically limit the manner in which the electronic device obtains the initial operating point corresponding to the target engine.

[0068] The initial operating point is used for characterization, the speed is n, and the torque is a. Optionally, n can be a value between 600-6000rpm, and a does not exceed 50Nm.

[0069] Step S102, inputting the initial operating condition information corresponding to the initial operating point and the initial throttle opening corresponding to the initial operating point into a preset transient calculation model corresponding to the target engine, and controlling the initial throttle opening to change to the target throttle opening within a preset time period to obtain the first transient response performance data corresponding to the target engine.

[0070] Specifically, the electronic device can input the initial operating condition information corresponding to the initial operating point and the throttle opening value corresponding to the initial operating point into the preset transient calculation model, and set the wastegate valve of the supercharger to always remain in a closed state, that is, the opening is zero. The opening and closing of the wastegate valve will affect the operation of the supercharger and many parameters such as the intake pressure and exhaust back pressure of the engine. It is set to closed here to control the working state of the engine exhaust system in this specific transient calculation stage to meet specific calculation requirements.

[0071] Then, the electronic device controls the initial throttle opening to change to the target throttle opening within a preset time period, and still sets the wastegate valve of the supercharger to remain closed, that is, the opening is zero. The dynamic change process of the target engine intake air volume adjustment component (throttle or throttle) rapidly increasing the opening is a critical operation setting in the entire transient process, which will have an important impact on the subsequent performance of the engine.

[0072] The preset transient calculation model simulates the performance change of the target engine within a preset time period according to the input throttle opening value, and obtains the first transient response performance data corresponding to the target engine.

[0073] The initial throttle opening can be 0%, 0.5%, or other values, and the target throttle opening can be 100%, 99.5%, 99%, or other values. The embodiments of the present application do not specifically limit the initial throttle opening and the target throttle opening. The preset time period can be 0.1s, 0.05s, or other durations within 0.1s. The embodiments of the present application do not specifically limit the preset time period.

[0074] The first transient response performance data may include but is not limited to data such as engine torque, power, speed, intake flow, exhaust temperature, etc.

[0075] For example, Figure 2As shown, the initial operating condition information corresponding to the initial operating point and the initial throttle opening corresponding to the initial operating point are input into the preset transient calculation model corresponding to the target engine, and the initial throttle opening is controlled to change to the target throttle opening within a preset time period, which is a schematic diagram of the torque transient response of the target engine.

[0076] Step S103: judging whether the target engine has reached the target operating point according to the first transient response performance data.

[0077] Specifically, the electronic device may obtain the target operating condition data corresponding to the target operating condition point, and then compare the first transient response performance data with the target operating condition data corresponding to the target operating condition point to determine whether the target engine has reached the target operating condition point.

[0078] Optionally, the electronic device may compare the engine torque data in the first transient response performance data with the target torque data corresponding to the target operating point to determine whether the target engine has reached the target operating point.

[0079] Exemplarily, the target torque data corresponding to the target operating point can be 50% of the maximum torque of the target engine when the speed is n, or 45% of the maximum torque when the speed is n, or other values. The embodiment of the present application does not specifically limit the target torque data corresponding to the target operating point.

[0080] Step S104: determining the transient response capability corresponding to the target engine according to the judgment result.

[0081] Specifically, the electronic device may determine the transient response capability corresponding to the target engine according to the judgment result.

[0082] This step will be described in detail below.

[0083] The transient response capability test method provided in the embodiment of the present application obtains the initial operating point corresponding to the target engine. Then, the initial operating condition information corresponding to the initial operating point and the initial throttle opening corresponding to the initial operating point are input into the preset transient calculation model corresponding to the target engine, and within the preset time period, the initial throttle opening is controlled to change to the target throttle opening, and the first transient response performance data corresponding to the target engine is obtained, thereby ensuring the accuracy of the first transient response performance data corresponding to the target engine obtained. Therefore, it is possible to judge whether the target engine has reached the target operating point based on the first transient response performance data corresponding to the target engine; then, based on the judgment result, the transient response capability corresponding to the target engine is determined, thereby ensuring the accuracy of the determined transient response capability corresponding to the target engine. The transient response capability of the engine is tested efficiently and accurately, with a short cycle and low cost.

[0084] In this embodiment, a transient response capability testing method is provided, which can be used for the above-mentioned electronic device. Figure 3 is a flow chart of a transient response capability testing method according to an embodiment of the present invention. Figure 3 As shown, the process includes the following steps:

[0085] Step S201, obtaining the initial operating point corresponding to the target engine.

[0086] For details about this step, please refer to the above description of step S101, which will not be elaborated here.

[0087] Step S202: constructing an initial thermodynamic model corresponding to the target engine according to the property information of the target engine.

[0088] The initial thermodynamic model includes at least one of an engine intake system, a supercharger and a supercharger intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system.

[0089] Specifically, the electronic device can determine the simulation objectives and boundary conditions. Among them, the main simulation objectives are determined, such as fuel consumption rate, emissions, thermal efficiency, etc. Simulation boundary conditions are defined, such as engine speed, load, ambient temperature, etc. Then, the electronic device obtains the detailed specifications of the target engine and its components, including geometric dimensions, material properties, thermophysical properties, etc. The electronic device obtains the target engine operating data, such as fuel consumption rate, torque, power, etc.

[0090] Next, the electronic device uses simulation software to establish the various components of the target engine, including the engine intake system, supercharger and supercharged intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system. Then, the electronic device assigns corresponding physical models to each component, such as gas dynamics model, heat conduction model, combustion model, etc. In addition, the electronic device defines parameters for each component, such as air flow of the intake system, pressure ratio of the supercharger, material properties of the engine cylinder, calorific value of fuel, etc. The parameters of the combustion model, such as ignition delay, combustion rate, etc., are set according to experimental data or empirical formulas.

[0091] To ensure the energy balance in the initial thermodynamic model, including the conversion of thermal energy, kinetic energy and potential energy, the electronics establish an energy balance based on heat exchanges such as engine cooling, exhaust gas recirculation, etc. The mass balance in the initial thermodynamic model is ensured based on the flow of fuel, air and emissions.

[0092] The electronics then build a combustion model, such as a zero-dimensional model, a one-dimensional model, or a three-dimensional model, based on the fuel injection, mixing, and combustion processes, and an emissions model based on emission models such as NOx, CO, HC, and PM.

[0093] The electronic device generates an initial thermodynamic model based on the above steps.

[0094] Step S203: adjusting the initial thermodynamic model to generate a target thermodynamic model corresponding to the target engine.

[0095] Specifically, the above step S203 may include the following steps:

[0096] Step S2031, obtaining the test operating point corresponding to the target engine.

[0097] Specifically, the electronic device may receive a test operating point corresponding to the target engine input by the user, wherein the number of the test operating points may be multiple.

[0098] Step S2032, input the test operating condition data corresponding to each test operating condition point into the steady-state test bench corresponding to the target engine, and output the real test data corresponding to each test operating condition point and the real test reverse drag friction work data.

[0099] Specifically, the electronic equipment collects test operating data at each test operating point, including key parameters such as engine speed, load, temperature, and pressure.

[0100] The electronic equipment then inputs the test condition data of the test condition point into the control system of the test bench. Ensure that all data input is accurate. The electronic equipment monitors various parameters during the test to ensure that the test conditions meet the requirements. During the test, the electronic equipment collects test data in real time through the sensors or data acquisition system of the test bench. The real test data collected may include engine output power, torque, fuel consumption rate, emissions, etc.

[0101] In addition, the electronic equipment calculates the reverse drag friction work based on the real test data. The reverse drag friction work usually refers to the power consumption caused by the internal friction of the engine when it is in the reverse drag state. The calculation formula may involve factors such as engine speed, torque, fuel consumption rate, etc.

[0102] Optionally, the electronic device can calculate the reverse drag friction work according to the integration method, kinetic energy change method, acceleration method and other methods.

[0103] Step S2033: Based on the real test data and the real test reverse drag friction work data, the initial thermodynamic model is adjusted to generate a target thermodynamic model corresponding to the target engine.

[0104] Specifically, the above step S2033 may include the following steps:

[0105] Step a1, input the test condition data corresponding to each test condition point into the initial thermodynamic model, and output the simulation test data and the simulation reverse drag friction work data corresponding to each test condition point.

[0106] Specifically, the electronic device inputs the test condition data into the initial thermodynamic model. The initial thermodynamic model performs simulation calculations on each test condition point to predict the thermodynamic state under the condition, thereby obtaining the simulation test data corresponding to each test condition point and the simulation reverse drag friction work data.

[0107] Step a2, respectively comparing the simulation test data with the actual test data, and comparing the simulation reverse dragging friction work data with the actual test reverse dragging friction work data.

[0108] Specifically, the electronic device can compare the simulation test data with the real test data, and calculate the experimental data difference between the simulation test data and the real test data. Compare the simulation reverse dragging friction work data with the real test reverse dragging friction work data, and calculate the friction work data difference.

[0109] Step a3, according to the comparison results, adjust the parameters of the initial thermodynamic model until the test data difference between the simulation test data and the actual test data is less than the first preset difference, and the friction work data difference between the simulation reverse dragging friction work data and the actual test reverse dragging friction work data is less than the second preset difference, so as to obtain the target thermodynamic model.

[0110] Specifically, the electronic device can adjust the parameters of the initial thermodynamic model according to the experimental data difference between the simulation test data and the actual test data and the friction work data between the simulated reverse dragging friction work data and the actual test reverse dragging friction work data, until the experimental data difference between the simulation test data and the actual test data is less than the first preset difference, and the friction work data difference between the simulated reverse dragging friction work data and the actual test reverse dragging friction work data is less than the second preset difference, so as to obtain the target thermodynamic model.

[0111] Optionally, the first preset difference may be 3%, 2%, or other data. The second preset difference may be 1%, 2%, or other data. The first preset difference and the second preset difference are not specifically limited in the embodiment of the present application.

[0112] Step S204: transform the target thermodynamic model to generate a preset transient calculation model.

[0113] Specifically, the electronic device can add a time dimension to the performance data output items in the target thermodynamic model, clearly use time as the independent variable, and reasonably set the time step according to actual needs. At the same time, the relevant elements such as the equations, boundary conditions and initial conditions involved are adjusted accordingly according to the set time step, thereby generating a preset transient calculation model.

[0114] For example, for thermodynamic equations containing time derivatives, such as the energy conservation equation (internal energy, heat transfer, and work done by the system), a discretization method such as the finite difference method is used according to the set time step. For example, in the forward difference format, it can be approximated as, where is the internal energy at the time step, and is the internal energy at the next time step. In this way, the continuous time derivative equation is converted into an algebraic equation that can be solved at each time step.

[0115] For, the equations of dynamic processes are updated. For example, consider a dynamic process such as the change in throttle opening. Assume that the equation for the change of throttle opening over time is (is the rate of change of opening), discretized using the time step. This allows the change in throttle opening at each time step to be reflected in the model, and can be coupled with other thermodynamic equations for solution. For example, the intake flow is related to the throttle opening, (is the maximum intake flow when the throttle is fully open, is a function related to the throttle opening), at each time step, the intake flow is calculated based on the updated throttle opening, and substituted into equations such as conservation of mass and conservation of energy for solution.

[0116] Then, the electronic device adjusts the boundary conditions. For the intake boundary conditions, it is assumed that the intake temperature and intake pressure are the intake boundary conditions. If the intake system changes relatively slowly within the time step, for example, in some cases the intake temperature can be considered constant, that is. However, if the dynamic changes of the intake system are considered, such as heat exchange and pressure fluctuations in the intake duct, the boundary conditions need to be updated according to the physical model and the time step. For example, for the one-dimensional unsteady heat conduction equation in the intake duct (is the gas density, is the specific heat capacity, is the thermal conductivity, is the axial position of the duct), combined with the set time step and the spatial discrete step size, a suitable numerical method (such as the Crank-Nicholson method) is used to update the temperature of each node in the intake duct at each time step, thereby obtaining the updated intake temperature boundary condition. For the intake pressure boundary condition, it can be similarly updated by the flow equation of the compressible fluid (such as the simplified form of the Euler equation or the Navier-Stokes equation) combined with the time step.

[0117] Regarding the adjustment of exhaust boundary conditions, for the exhaust system, for example, when the wastegate valve is closed, exhaust back pressure is an important boundary condition. In the transient process, exhaust back pressure is related to exhaust flow, working state of turbocharger, etc. According to the set time step, the exhaust pressure in the exhaust flow equation (is the exhaust flow, is the flow coefficient, is the effective area of ​​the exhaust port, is the exhaust pressure, is the atmospheric pressure, is the exhaust density) is updated. If the dynamic response of the turbocharger is considered, it is also necessary to combine the turbocharger speed equation (is the turbocharger speed, is the moment of inertia, is the turbine torque, is the load torque), and update the turbocharger speed according to the time step, thereby affecting boundary conditions such as exhaust back pressure.

[0118] For initial condition adjustment, the electronic equipment state parameters are initialized. Specifically, the state parameters at the initial time are set, such as engine speed, initial intake temperature, initial intake pressure, initial throttle opening, and exhaust bypass valve opening. These initial conditions need to match the starting state of the transient calculation. For example, if the throttle is initially set to the state of operating point A, then the throttle opening value corresponding to operating point A is used.

[0119] Make sure that the initial conditions are reasonable within the time step framework. For example, the initial conditions should be able to serve as the starting point for the first time step calculation. If the first time step is, then starting from the initial conditions, according to the model equations and boundary conditions, the state parameters at the end of the first time step can be smoothly calculated, such as (is the engine speed at the end of the first time step, is the speed change calculated based on the engine torque equation and the time step). At the same time, the accuracy of the initial conditions should also be compatible with the accuracy of the time step. If the time step is small, the accuracy of the initial conditions is relatively high to avoid excessive deviations in the results due to initial errors in subsequent calculations.

[0120] Step S205, input the initial operating condition information corresponding to the initial operating point and the initial throttle opening corresponding to the initial operating point into a preset transient calculation model corresponding to the target engine, and control the initial throttle opening to change to the target throttle opening within a preset time period to obtain the first transient response performance data corresponding to the target engine.

[0121] For details about this step, please refer to the above description of step 102, which will not be repeated here.

[0122] Step S206: judging whether the target engine has reached the target operating point according to the first transient response performance data.

[0123] For details about this step, please refer to the above description of step 103, which will not be repeated here.

[0124] Step S207: determining the transient response capability corresponding to the target engine according to the judgment result.

[0125] For details about this step, please refer to the above description of step 104, which will not be described in detail here.

[0126] The transient response capability test method provided in the embodiment of the present application builds an initial thermodynamic model corresponding to the target engine according to the attribute information of the target engine, thereby ensuring the accuracy of the initial thermodynamic model corresponding to the built target engine. Obtain the test operating point corresponding to the target engine; input the test operating data corresponding to each test operating point into the steady-state test bench corresponding to the target engine, and output the real test data and the real test reverse drag friction work data corresponding to each test operating point, thereby ensuring the accuracy of the real test data and the real test reverse drag friction work data outputted. Input the test operating data corresponding to each test operating point into the initial thermodynamic model, output the simulation test data and the simulation reverse drag friction work data corresponding to each test operating point, thereby ensuring the accuracy of the simulation test data and the simulation reverse drag friction work data outputted from each test operating point. The simulation test data is compared with the real test data, and the simulation dragging friction work data is compared with the real test dragging friction work data; according to the comparison results, the parameters of the initial thermodynamic model are adjusted until the test data difference between the simulation test data and the real test data is less than the first preset difference, and the friction work data difference between the simulation dragging friction work data and the real test dragging friction work data is less than the second preset difference, and the target thermodynamic model is obtained, thereby ensuring the accuracy of the obtained target thermodynamic model and avoiding the inaccuracy of the preset transient calculation model obtained based on the target thermodynamic model due to the inaccuracy of the target thermodynamic model. The target thermodynamic model is transformed to generate a preset transient calculation model, which ensures the accuracy of the generated preset transient calculation model.

[0127] In this embodiment, a transient response capability testing method is provided, which can be used for the above-mentioned electronic device. Figure 4 is a flow chart of a transient response capability testing method according to an embodiment of the present invention. Figure 4 As shown, the process includes the following steps:

[0128] Step S301, obtaining the initial operating point corresponding to the target engine.

[0129] For details about this step, please refer to the above description of step S201, which will not be elaborated here.

[0130] Step S302, input the initial operating condition information corresponding to the initial operating point and the initial throttle opening corresponding to the initial operating point into a preset transient calculation model corresponding to the target engine, and control the initial throttle opening to change to the target throttle opening within a preset time period to obtain the first transient response performance data corresponding to the target engine.

[0131] For details about this step, please refer to the above description of step S205, which will not be elaborated here.

[0132] Step S303: judging whether the target engine has reached the target operating point according to the first transient response performance data.

[0133] For details about this step, please refer to the above description of step S206, which will not be elaborated here.

[0134] Step S304: determining the transient response capability corresponding to the target engine according to the judgment result.

[0135] Specifically, the above step S304 may include the following steps:

[0136] Step S3041: if the target engine reaches the target operating point, it is determined that the transient response capability corresponding to the target engine is the first level.

[0137] Specifically, the electronic device compares the first transient response performance data with the target operating condition data corresponding to the target operating point. If the first transient response performance data is better than the target operating condition data, it is determined that the target engine reaches the target operating point, and further determines that the transient response capability corresponding to the target engine is the first level.

[0138] Exemplarily, the electronic device may compare the engine torque data in the first transient response performance data with the target torque data corresponding to the target operating point. If the engine torque data in the first transient response performance data is greater than or equal to the target torque data corresponding to the target operating point, the electronic device determines that the target engine has reached the target operating point, and further determines that the transient response capability corresponding to the target engine is the first level.

[0139] Step S3042: If the target engine has not reached the target operating point, it is determined that the transient response capability corresponding to the target engine is the second level.

[0140] Among them, the first level is better than the second level.

[0141] Specifically, if the first transient response performance data is not better than the target operating condition data, it is determined that the target engine has not reached the target operating point, and further the transient response capability corresponding to the target engine is determined to be the second level.

[0142] Exemplarily, the electronic device may compare the engine torque data in the first transient response performance data with the target torque data corresponding to the target operating point. If the engine torque data in the first transient response performance data is less than the target torque data corresponding to the target operating point, the electronic device determines that the target engine has not reached the target operating point, and further determines that the transient response capability corresponding to the target engine is the second level.

[0143] In an optional implementation of the present application, the preset transient calculation model includes at least one of an engine intake system, a supercharger and a supercharged intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system corresponding to the target engine. After the above step S3042, the following steps may also be included:

[0144] Step S3043, updating the component parameters of the engine components in the preset transient calculation model to generate a target transient calculation model.

[0145] The engine components include at least one of an engine intake system, a supercharger and a supercharger intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system.

[0146] Specifically, the electronic device may replace component parameters of engine components in a preset transient calculation model to generate a target transient calculation model.

[0147] Exemplarily, the electronic device can replace component parameters of at least one engine component among the engine intake system, supercharger and turbo intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system to generate a target transient calculation model.

[0148] Step S3044, inputting the initial throttle opening corresponding to the initial operating point into the target transient calculation model, and controlling the initial throttle opening to change to the target throttle opening within a preset time period, and obtaining the second transient response performance data corresponding to the target engine.

[0149] Specifically, the electronic device inputs the initial operating condition information corresponding to the initial operating point and the throttle opening value corresponding to the initial operating point into the target transient calculation model, and sets the wastegate valve of the supercharger to always remain in a closed state, that is, the opening is zero.

[0150] Then, the electronic device controls the initial throttle opening to change to the target throttle opening within a preset time period, and still sets the wastegate valve of the supercharger to remain in a closed state, that is, the opening is zero. The target transient calculation model simulates the performance change of the target engine within a preset time period according to the input throttle opening value, and obtains the second transient response performance data corresponding to the target engine.

[0151] Step S3045: compare the second transient response performance data with the first transient response performance data.

[0152] Specifically, the electronic device may compare the second transient response performance data with the first transient response performance data.

[0153] Step S3046: Determine, based on the comparison result, whether the transient response capability of the target engine after the component parameters of the engine component are replaced is higher than the transient response capability of the target engine before the replacement.

[0154] Specifically, if the second transient response performance data is better than the first transient response performance data, the electronic device determines that the transient response capability of the target engine after the component parameters of the engine component are replaced is higher than the transient response capability of the target engine before the replacement. That is, the reason why the electronic device determines that the transient response capability of the target engine is the second level is that the transient response capability of the engine component before the component parameters are replaced is poor.

[0155] Step S3047, comparing the second transient response performance data corresponding to each target transient calculation model after the component parameters of the engine component are replaced.

[0156] Specifically, the electronic device may also compare the second transient response performance data corresponding to each target transient calculation model after the component parameters of the engine component are replaced.

[0157] Step S3048, determining the optimal engine components based on the comparison results.

[0158] Specifically, the electronic device determines the component parameters of each engine component corresponding to the target transient calculation model with the best second transient response performance data based on the result of comparing the second transient response performance data corresponding to each target transient calculation model, thereby determining the optimal engine component, so that the optimal engine can be generated based on the optimal engine component, and further ensuring that the transient response performance of the generated optimal engine is optimal.

[0159] The transient response capability testing method provided in the embodiment of the present application determines that the transient response capability corresponding to the target engine is at the first level if the target engine reaches the target operating point; if the target engine does not reach the target operating point, the transient response capability corresponding to the target engine is determined to be at the second level; wherein the first level is superior to the second level, thereby ensuring the accuracy of the determined transient response capability corresponding to the target engine.

[0160] If the target engine does not reach the target operating point, after determining that the transient response capability corresponding to the target engine is the second level, the component parameters of the engine components in the preset transient calculation model are updated to generate the target transient calculation model, ensuring that the generated target transient calculation model is different from the engine components corresponding to the preset transient calculation model. Then, the initial throttle opening corresponding to the initial operating point is input into the target transient calculation model, and within a preset time period, the initial throttle opening is controlled to change to the target throttle opening, and the second transient response performance data corresponding to the target engine is obtained. The second transient response performance data is compared with the first transient response performance data; thus, according to the comparison result, it is determined whether the transient response capability of the target engine after the component parameters of the engine components are replaced is higher than the transient response capability of the target engine before the replacement, and then the influence of the replaced engine components on the transient response capability of the engine can be determined.

[0161] The second transient response performance data corresponding to each target transient calculation model after the component parameters of the engine components are replaced are compared; based on the comparison results, the influence of each replaced engine component on the transient response performance of the engine is determined, so that the optimal engine component can be determined, and the transient response capability of the engine can be improved, thereby eliminating the need to test each engine component of the engine on a test bench.

[0162] In this embodiment, a transient response capability test device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0163] This embodiment provides a transient response capability testing device, such as Figure 5 As shown, including:

[0164] An acquisition module 401 is used to acquire an initial operating point corresponding to a target engine;

[0165] An input module 402 is used to input the initial operating condition information corresponding to the initial operating condition point and the initial throttle opening corresponding to the initial operating condition point into a preset transient calculation model corresponding to the target engine, and control the initial throttle opening to change to the target throttle opening within a preset time period to obtain first transient response performance data corresponding to the target engine;

[0166] A judgment module 403 is used to judge whether the target engine reaches the target operating point according to the first transient response performance data;

[0167] The determination module 404 is used to determine the transient response capability corresponding to the target engine according to the judgment result.

[0168] In some optional embodiments, such as Figure 6 As shown, the above-mentioned transient response capability testing device further includes:

[0169] A building module 405 is used to build an initial thermodynamic model corresponding to the target engine according to the property information of the target engine; the initial thermodynamic model includes at least one of an engine intake system, a supercharger and a supercharger intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system;

[0170] An adjustment module 406 is used to adjust the initial thermodynamic model to generate a target thermodynamic model corresponding to the target engine;

[0171] The generation module 407 is used to transform the target thermodynamic model to generate a preset transient calculation model.

[0172] In some optional embodiments, the above-mentioned adjustment module 406 is specifically used to obtain the test operating points corresponding to the target engine; input the test operating data corresponding to each test operating point into the steady-state test bench corresponding to the target engine, and output the real test data and the real test reverse friction work data corresponding to each test operating point; based on the real test data and the real test reverse friction work data, adjust the initial thermodynamic model to generate the target thermodynamic model corresponding to the target engine.

[0173] In some optional embodiments, the above-mentioned adjustment module 406 is specifically used to input the test condition data corresponding to each test condition point into the initial thermodynamic model, and output the simulation test data and the simulated reverse dragging friction work data corresponding to each test condition point; respectively compare the simulation test data with the actual test data, and compare the simulated reverse dragging friction work data with the actual test reverse dragging friction work data; according to the comparison result, adjust the parameters of the initial thermodynamic model until the test data difference between the simulation test data and the actual test data is less than the first preset difference, and the friction work data difference between the simulated reverse dragging friction work data and the actual test reverse dragging friction work data is less than the second preset difference, so as to obtain the target thermodynamic model.

[0174] In some optional embodiments, the above-mentioned determination module 404 is specifically used to determine that the transient response capability corresponding to the target engine is at the first level if the target engine reaches the target operating point; if the target engine does not reach the target operating point, then determine that the transient response capability corresponding to the target engine is at the second level; wherein the first level is better than the second level.

[0175] In some optional embodiments, the preset transient calculation model includes at least one of an engine intake system, a supercharger and a supercharger intercooler, an engine body, an engine heat transfer system, an injection system, a combustion system, an engine exhaust system, and an EGR system corresponding to the target engine; the above-mentioned determination module 404 is specifically used to update the component parameters of the engine components in the preset transient calculation model to generate a target transient calculation model; the engine components include at least one of an engine intake system, a supercharger and a supercharger intercooler, an engine body, an engine heat transfer system, an injection system, a combustion system, an engine exhaust system, and an EGR system; the initial throttle opening corresponding to the initial operating point is input into the target transient calculation model, and within a preset time period, the initial throttle opening is controlled to change to the target throttle opening, and a second transient response performance data corresponding to the target engine is obtained; the second transient response performance data is compared with the first transient response performance data; according to the comparison result, it is determined whether the transient response capability of the target engine after replacing the component parameters of the engine components is higher than the transient response capability of the target engine before the replacement.

[0176] In some optional implementations, the determination module 404 is specifically used to compare the second transient response performance data corresponding to each target transient calculation model after the component parameters of the engine component are replaced; and determine the optimal engine component according to the comparison result.

[0177] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0178] The transient response capability testing device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0179] The embodiment of the present invention also provides an electronic device having the above Figure 5 and Figure 6 The transient response capability test setup is shown.

[0180] See also Figure 7 , Figure 7 is a schematic diagram of the structure of an electronic device provided by an optional embodiment of the present invention, such as Figure 7 As shown, the electronic device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the electronic device, including instructions stored in or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple electronic devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 7 A processor 10 is taken as an example.

[0181] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0182] The memory 20 stores instructions executable by at least one processor 10, so that at least one processor 10 executes the method shown in the above embodiment.

[0183] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the electronic device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0184] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0185] The electronic device further includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30 and the output device 40 may be connected via a bus or other means. Figure 7 The example of connecting through bus is taken in the following.

[0186] The input device 30 can receive input digital or character information, and generate key signal input related to the user settings and function control of the electronic device, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, an indicator rod, one or more mouse buttons, a trackball, a joystick, etc. The output device 40 may include a display device, an auxiliary lighting device (e.g., an LED) and a tactile feedback device (e.g., a vibration motor), etc. The above-mentioned display device includes but is not limited to a liquid crystal display, a light emitting diode, a display and a plasma display. In some optional embodiments, the display device can be a touch screen.

[0187] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0188] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0189] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A transient response capability testing method, characterized in that: The method comprises: Obtaining the initial operating point corresponding to the target engine; Inputting the initial operating condition information corresponding to the initial operating condition point and the initial throttle opening corresponding to the initial operating condition point into a preset transient calculation model corresponding to the target engine, and controlling the initial throttle opening to change to a target throttle opening within a preset time period to obtain first transient response performance data corresponding to the target engine; determining, according to the first transient response performance data, whether the target engine has reached a target operating point; According to the judgment result, the transient response capability corresponding to the target engine is determined.

2. The method according to claim 1, characterized in that The initial operating condition information corresponding to the initial operating condition point and the initial throttle opening corresponding to the initial operating condition point are input into a preset transient calculation model corresponding to the target engine, and the above method includes: According to the property information of the target engine, an initial thermodynamic model corresponding to the target engine is constructed; the initial thermodynamic model includes at least one of an engine intake system, a supercharger and a supercharged intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system; Adjusting the initial thermodynamic model to generate a target thermodynamic model corresponding to the target engine; The target thermodynamic model is transformed to generate the preset transient calculation model.

3. The method according to claim 2, characterized in that The adjusting the initial thermodynamic model to generate a target thermodynamic model corresponding to the target engine includes: Obtaining a test operating point corresponding to the target engine; Inputting the test operating condition data corresponding to each of the test operating condition points into the steady-state test bench corresponding to the target engine, and outputting the real test data corresponding to each of the test operating condition points and the real test reverse drag friction work data; Based on the real test data and the real test reverse drag friction work data, the initial thermodynamic model is adjusted to generate a target thermodynamic model corresponding to the target engine.

4. The method according to claim 3, characterized in that The adjusting the initial thermodynamic model based on the real test data and the real test reverse drag friction work data to generate a target thermodynamic model corresponding to the target engine includes: Inputting the test operating condition data corresponding to each of the test operating condition points into the initial thermodynamic model, and outputting the simulation test data and the simulation reverse drag friction work data corresponding to each of the test operating condition points; The simulation test data is compared with the real test data, and the simulation reverse dragging friction work data is compared with the real test reverse dragging friction work data; According to the comparison results, the parameters of the initial thermodynamic model are adjusted until the test data difference between the simulation test data and the actual test data is less than a first preset difference, and the friction work data difference between the simulation reverse dragging friction work data and the actual test reverse dragging friction work data is less than a second preset difference, so as to obtain the target thermodynamic model.

5. The method according to claim 1, characterized in that Determining the transient response capability corresponding to the target engine according to the judgment result includes: If the target engine reaches the target operating point, determining that the transient response capability corresponding to the target engine is at the first level; If the target engine does not reach the target operating point, it is determined that the transient response capability corresponding to the target engine is at the second level; wherein the first level is better than the second level.

6. The method according to claim 5, characterized in that The preset transient calculation model includes at least one of an engine intake system, a supercharger and a supercharged intercooler, an engine body, an engine heat transfer system, a fuel injection system, a combustion system, an engine exhaust system, and an EGR system corresponding to the target engine; if the target engine does not reach the target operating point, after determining that the transient response capability corresponding to the target engine is at the second level, the method includes: updating the component parameters of the engine components in the preset transient calculation model to generate a target transient calculation model; the engine components include at least one of the engine intake system, the supercharger and supercharged intercooler, the engine body, the engine heat transfer system, the fuel injection system, the combustion system, the engine exhaust system, and the EGR system; Inputting the initial throttle opening corresponding to the initial operating point into the target transient calculation model, and controlling the initial throttle opening to change to the target throttle opening within a preset time period, and obtaining second transient response performance data corresponding to the target engine; comparing the second transient response performance data with the first transient response performance data; According to the comparison result, it is determined whether the transient response capability of the target engine after the component parameters of the engine component are replaced is higher than the transient response capability of the target engine before the replacement.

7. The method according to claim 6, characterized in that The method further comprises: comparing the second transient response performance data corresponding to each of the target transient calculation models after the component parameters of the engine component are replaced; Based on the comparison results, the optimal engine components are determined.

8. A transient response capability testing device, characterized in that: The device comprises: An acquisition module, used to acquire an initial operating point corresponding to a target engine; An input module, used for inputting the initial operating condition information corresponding to the initial operating condition point and the initial throttle opening corresponding to the initial operating condition point into a preset transient calculation model corresponding to the target engine, and controlling the initial throttle opening to change to a target throttle opening within a preset time period, and obtaining first transient response performance data corresponding to the target engine; A judgment module, configured to judge whether the target engine reaches a target operating point according to the first transient response performance data; The determination module is used to determine the transient response capability corresponding to the target engine according to the judgment result.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the transient response capability testing method according to any one of claims 1 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the transient response capability testing method according to any one of claims 1 to 7.

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