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

Abstract

The present application relates to the technical field of engine, in particular to a transient response capability test method and device, electronic equipment and storage medium. An initial working condition point corresponding to a target engine is acquired; initial working condition information corresponding to the initial working condition point and an initial throttle opening degree corresponding to the initial working condition point are input to a preset transient calculation model corresponding to the target engine, and the initial throttle opening degree is controlled to change to a target throttle opening degree within a preset time period, so as to acquire first transient response performance data corresponding to the target engine; whether the target engine reaches a target working condition point is judged according to the first transient response performance data; and the transient response capability corresponding to the target engine is determined according to the judgment result. The accuracy of the determined transient response capability corresponding to the target engine is ensured. The transient response capability of the engine is tested efficiently and accurately, and the cycle is short and the cost is low.

Description

Technical Field

[0001] This invention relates to the field of engine technology, and more specifically to transient response capability testing methods, devices, electronic equipment, and storage media. Background Technology

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

[0003] Traditional testing methods mainly employ bench testing, which involves conducting experiments on an engine test bench to simulate actual operating conditions and record the change in engine torque over time, thereby evaluating the engine's transient response capability. However, this method has the following problems: (1) Long cycle: Bench testing requires a certain amount of time to complete, which may take several days or even weeks from preparation to completion. (2) High cost: Bench testing requires specialized testing equipment and environment, resulting in high costs.

[0004] How to efficiently test the transient response capability of an 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, apparatus, 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] Obtain the initial operating point corresponding to the target engine;

[0008] The initial operating condition information and the initial throttle opening corresponding to the initial operating condition point are input into the preset transient calculation model corresponding to the target engine. Within a 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.

[0009] Based on the first transient response performance data, determine whether the target engine has reached the target operating point;

[0010] Based on the judgment results, determine the transient response capability of the target engine.

[0011] The transient response capability testing method provided in this application obtains the initial operating point of the target engine. Then, the initial operating condition information and the initial throttle opening corresponding to the initial operating point are input into a preset transient calculation model corresponding to the target engine. Within a preset time period, the initial throttle opening is controlled to change to the target throttle opening, obtaining the first transient response performance data corresponding to the target engine, ensuring the accuracy of the obtained first transient response performance data. Therefore, based on the first transient response performance data, it can be determined whether the target engine has reached the target operating point; then, based on the determination result, the transient response capability of the target engine is determined, ensuring the accuracy of the determined transient response capability. This achieves efficient and accurate testing of the engine's transient response capability, with a short cycle and low cost.

[0012] In one optional implementation, 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. The previous method includes:

[0013] Based on the attribute information of the target engine, an initial thermodynamic model corresponding to the target engine is built. The initial thermodynamic model includes at least one of the following: engine intake system, turbocharger and turbo intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system.

[0014] The initial thermodynamic model is adjusted to generate the 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 testing method provided in this application constructs an initial thermodynamic model corresponding to the target engine based on the target engine's attribute information, ensuring the accuracy of the constructed initial thermodynamic model. The initial thermodynamic model is adjusted to generate a target thermodynamic model corresponding to the target engine, ensuring the accuracy of the generated target thermodynamic model. The target thermodynamic model is then transformed to generate a preset transient calculation model, ensuring the accuracy of the generated preset transient calculation model.

[0017] In one 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 conditions 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 and real test drag friction work data corresponding to each test condition point.

[0020] Based on real experimental data and real experimental 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 testing method provided in this application obtains the test operating points corresponding to the target engine; inputs the test operating point data corresponding to each test operating point into the steady-state test bench corresponding to the target engine, and outputs the actual test data and actual test drag friction work data corresponding to each test operating point, ensuring the accuracy of the output actual test data and actual test drag friction work data corresponding to each test operating point. Based on the actual test data and actual test drag friction work data, the initial thermodynamic model is adjusted to generate the target thermodynamic model corresponding to the target engine, ensuring the accuracy of the generated target thermodynamic model corresponding to the target engine.

[0022] In one optional implementation, based on real experimental data and real experimental 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 simulation drag friction work data corresponding to each test condition point.

[0024] The simulated test data and the real test data were compared respectively, and the simulated drag friction work data and the real drag friction work data were compared respectively.

[0025] Based on the comparison results, the parameters of the initial thermodynamic model are adjusted until the difference between the simulated experimental data and the actual experimental data is less than the first preset difference, and the difference between the simulated drag friction work data and the actual drag friction work data is less than the second preset difference, thus obtaining the target thermodynamic model.

[0026] The transient response capability testing method provided in this application inputs the test condition data corresponding to each test condition point into an initial thermodynamic model, and outputs the simulated test data and simulated drag friction work data corresponding to each test condition point, ensuring the accuracy of the output simulated test data and simulated drag friction work data corresponding to each test condition point. The simulated test data is compared with the actual test data, and the simulated drag friction work data is compared with the actual drag friction work data. Based on the comparison results, the parameters of the initial thermodynamic model are adjusted until the difference between the simulated test data and the actual test data is less than a first preset difference, and the difference between the simulated drag friction work data and the actual drag friction work data is less than a second preset difference, thus obtaining the target thermodynamic model. This ensures the accuracy of the obtained target thermodynamic model and avoids 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 one optional implementation, determining the transient response capability of the target engine based on the judgment result includes:

[0028] If the target engine reaches the target operating point, the transient response capability of the target engine is determined to be at the first level.

[0029] If the target engine fails to reach the target operating point, the transient response capability of the target engine is determined to be at level two; where level one is superior to level two.

[0030] The transient response capability testing method provided in this application determines the transient response capability of the target engine to be at the first level if the target engine reaches the target operating point; and determines the transient response capability of the target engine to be at the second level if the target engine does not reach the target operating point. The first level is superior to the second level, which ensures the accuracy of the determined transient response capability of the target engine.

[0031] In one optional implementation, the preset transient calculation model includes at least one of the following: engine intake system, turbocharger and intercooler, engine block, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and 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] Update the component parameters of the engine components in the preset transient calculation model to generate the target transient calculation model; the engine components include at least one of the following: engine intake system, turbocharger and turbo intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system;

[0033] The initial throttle opening corresponding to the initial operating condition point is input into the target transient calculation model, and the initial throttle opening is controlled to change to the target throttle opening within a preset time period to obtain the second transient response performance data corresponding to the target engine.

[0034] The second transient response performance data is compared with the first transient response performance data;

[0035] Based on the comparison results, determine whether the transient response capability of the target engine after replacing the engine components is higher than that of the target engine before the replacement.

[0036] The transient response capability testing method provided in this application updates the component parameters of the engine components in the preset transient calculation model to generate a 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, obtaining the second transient response performance data corresponding to the target engine. The second transient response performance data is compared with the first transient response performance data; based on the comparison results, it is determined whether the transient response capability of the target engine after replacing the component parameters is higher than that of the target engine before replacement, thus determining the impact of the replaced engine components on the engine's transient response capability.

[0037] In one alternative implementation, the method further includes:

[0038] The second transient response performance data corresponding to each target transient calculation model after replacing the component parameters of the engine components are compared;

[0039] Based on the comparison results, the optimal engine component was determined.

[0040] The transient response capability testing method provided in this application compares the second transient response performance data corresponding to each target transient calculation model after replacing the component parameters of the engine components; based on the comparison results, the impact of each replaced engine component on the transient response performance of the engine can be determined, thereby determining the optimal engine component, improving the transient response capability of the engine, and thus eliminating the need to test each engine component on a test bench.

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

[0042] The acquisition module is used to acquire the initial operating point corresponding to the target engine;

[0043] The input module is used to input the initial operating condition information and the initial throttle opening corresponding to the initial operating condition point into the 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.

[0044] The judgment module is used to determine whether the target engine has reached the target operating point based on the first transient response performance data;

[0045] The determination module is used to determine the transient response capability of the target engine based on the judgment result.

[0046] The transient response capability testing device provided in this application acquires the initial operating point of the target engine. Then, the initial operating condition information and the initial throttle opening corresponding to the initial operating point are input into a preset transient calculation model corresponding to the target engine. Within a preset time period, the initial throttle opening is controlled to change to the target throttle opening, acquiring the first transient response performance data corresponding to the target engine, ensuring the accuracy of the acquired first transient response performance data. Therefore, based on the first transient response performance data, it can be determined whether the target engine has reached the target operating point; then, based on the determination result, the transient response capability of the target engine is determined, ensuring the accuracy of the determined transient response capability. This achieves efficient and accurate testing of the engine's transient response capability, with a short cycle and low cost.

[0047] Thirdly, the present invention provides an electronic device, comprising: 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 computer instructions to perform the transient response capability testing method of the first aspect or any corresponding embodiment described above.

[0048] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the transient response capability testing method of the first aspect or any corresponding embodiment described above.

[0049] Fifthly, the present invention provides a computer program product, including computer instructions for causing a computer to execute the transient response capability testing method of the first aspect or any corresponding embodiment described above. Attached Figure Description

[0050] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

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

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

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

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

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

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

[0057] Figure 7 This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

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

[0060] Traditional testing methods mainly employ bench testing, which involves conducting experiments on an engine test bench to simulate actual operating conditions and record the change in engine torque over time, thereby evaluating the engine's transient response capability. However, this method has the following problems: (1) Long cycle: Bench testing requires a certain amount of time to complete, which may take several days or even weeks from preparation to completion. (2) High cost: Bench testing requires specialized testing equipment and environment, resulting in high costs.

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

[0062] It should be noted that the transient response capability testing method provided in this application embodiment can be executed by a transient response capability testing device. This device can be implemented as part or all of an electronic device through software, hardware, or a combination of both. The electronic device can be a server or a terminal. In this application embodiment, the server can be a single server or a server cluster composed of multiple servers. The terminal in this application embodiment can be a smartphone, personal computer, tablet computer, wearable device, or other intelligent hardware device such as an intelligent robot. The following method embodiments will use an electronic device as the execution subject for illustration.

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

[0064] This embodiment provides a transient response capability testing method, which can be used in the aforementioned electronic devices. Figure 1 This is a flowchart of a transient response capability testing method according to an embodiment of the present invention, such as... Figure 1 As shown, the process includes the following steps:

[0065] Step S101: Obtain the initial operating point corresponding to the target engine.

[0066] Specifically, the electronic device can receive the initial operating point of the target engine input by the user, or it can receive the initial operating point of the target engine sent by other devices.

[0067] This application does not specifically limit the method by which the electronic device obtains the initial operating point corresponding to the target engine.

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

[0069] Step S102: Input the initial operating condition information and the initial throttle opening corresponding to the initial operating condition point into the 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.

[0070] Specifically, the electronic device can input the initial operating condition information and the corresponding throttle opening value at the initial operating point into the preset transient calculation model, and set the turbocharger's wastegate valve to always remain closed, i.e., with an opening of zero. The opening and closing of the wastegate valve affects the operation of the turbocharger and many parameters of the engine, such as intake pressure and exhaust back pressure. Setting it to be closed here is to control the operating state of the engine exhaust system during this specific transient calculation phase, so that it meets specific calculation requirements.

[0071] Then, within a preset time period, the electronic equipment controls the initial throttle opening to change to the target throttle opening, while keeping the turbocharger's wastegate valve closed (i.e., with an opening of zero). This dynamic process of rapidly increasing the opening of the target engine intake air volume regulating component (throttle or accelerator) is a crucial operational setting in the entire transient process, significantly impacting the engine's subsequent performance.

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

[0073] The initial throttle opening can be 0%, 0.5%, or other values, while the target throttle opening can be 100%, 99.5%, 99%, or other values. This embodiment does not specifically limit the initial and target throttle openings. The preset time period can be 0.1s, 0.05s, or other durations within 0.1s. This embodiment does not specifically limit the preset time period.

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

[0075] For example, such as Figure 2The diagram shows the torque transient response of the target engine by inputting the initial operating condition information and the initial throttle opening corresponding to the initial operating condition point into the 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.

[0076] Step S103: Based on the first transient response performance data, determine whether the target engine has reached the target operating point.

[0077] Specifically, the electronic equipment can acquire the target operating condition data corresponding to the target operating point. Then, it compares the first transient response performance data with the target operating condition data corresponding to the target operating point to determine whether the target engine has reached the target operating point.

[0078] Optionally, the electronic device can 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] For example, the target torque data corresponding to the target operating point can be 50% of the maximum torque of the target engine at speed n, or 45% of the maximum torque at speed n, or other values. This application embodiment does not specifically limit the target torque data corresponding to the target operating point.

[0080] Step S104: Based on the judgment result, determine the transient response capability corresponding to the target engine.

[0081] Specifically, electronic devices can determine the transient response capability of the target engine based on the judgment result.

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

[0083] The transient response capability testing method provided in this application obtains the initial operating point of the target engine. Then, the initial operating condition information and the initial throttle opening corresponding to the initial operating point are input into a preset transient calculation model corresponding to the target engine. Within a preset time period, the initial throttle opening is controlled to change to the target throttle opening, obtaining the first transient response performance data corresponding to the target engine, ensuring the accuracy of the obtained first transient response performance data. Therefore, based on the first transient response performance data, it can be determined whether the target engine has reached the target operating point; then, based on the determination result, the transient response capability of the target engine is determined, ensuring the accuracy of the determined transient response capability. This achieves efficient and accurate testing of the engine's transient response capability, with a short cycle and low cost.

[0084] This embodiment provides a transient response capability testing method, which can be used in the aforementioned electronic devices. Figure 3 This is a flowchart of a transient response capability testing method according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps:

[0085] Step S201: Obtain the initial operating point corresponding to the target engine.

[0086] Please refer to the above description of step S101 for details on this step, which will not be repeated here.

[0087] Step S202: Based on the attribute information of the target engine, build the initial thermodynamic model corresponding to the target engine.

[0088] The initial thermodynamic model includes at least one of the following: engine intake system, turbocharger and turbo intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system.

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

[0090] Next, the electronic system uses simulation software to build various components of the target engine, including the engine intake system, turbocharger and intercooler, engine block, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system. Then, the electronic system assigns a corresponding physical model to each component, such as a gas dynamics model, heat transfer model, and combustion model. Furthermore, the electronic system defines parameters for each component, such as the airflow rate of the intake system, the pressure ratio of the turbocharger, the material properties of the engine block, and the calorific value of the fuel. The parameters of the combustion model, such as ignition delay and combustion rate, are set based on experimental data or empirical formulas.

[0091] To ensure energy balance in the initial thermodynamic model, including the conversion of thermal, kinetic, and potential energy, the electronic equipment establishes energy balance based on heat exchange such as engine cooling and exhaust recirculation. Mass balance in the initial thermodynamic model is ensured based on the flow of fuel, air, and emissions.

[0092] Then, electronic devices establish combustion models based on fuel injection, mixing, and combustion processes, such as zero-dimensional, one-dimensional, or three-dimensional models. Emission models are then established based on emission models for NOx, CO, HC, and PM.

[0093] Based on the above steps, the electronic device generates an initial thermodynamic model.

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

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

[0096] Step S2031: Obtain the test operating point corresponding to the target engine.

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

[0098] Step S2032: 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 and the real test drag friction work data corresponding to each test condition point.

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

[0100] Then, the electronic equipment inputs the test condition data at the test points into the test bench's control system, ensuring 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 test bench's sensors or data acquisition system. The collected real-world test data may include engine output power, torque, fuel consumption rate, emissions, etc.

[0101] In addition, the electronic equipment calculates the drag friction work based on real test data. Dragging friction work generally refers to the power consumption of the engine due to internal friction when it is dragging backward. The calculation formula may involve factors such as engine speed, torque, and fuel consumption rate.

[0102] Optionally, the electronic device can calculate the drag friction work using methods such as the integral method, the kinetic energy change method, and the acceleration method.

[0103] Step S2033: Based on real experimental data and real experimental drag friction work data, adjust the initial thermodynamic model to generate the target thermodynamic model corresponding to the target engine.

[0104] Specifically, step S2033 above 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 simulation drag friction work data corresponding to each test condition point.

[0106] Specifically, the electronic equipment inputs the test condition data into the initial thermodynamic model. The initial thermodynamic model performs simulation calculations for each test condition point to predict the thermodynamic state under that condition. This yields the simulation test data and simulated drag friction work data corresponding to each test condition point.

[0107] Step a2: Compare the simulation test data with the real test data, and compare the simulation drag friction work data with the real drag friction work data.

[0108] Specifically, the electronic device can compare simulated test data with actual test data to calculate the difference between the simulated and actual test data. It can also compare simulated drag friction work data with actual drag friction work data to calculate the difference in friction work data.

[0109] Step a3: Based on the comparison results, adjust the parameters of the initial thermodynamic model until the difference between the simulated experimental data and the actual experimental data is less than the first preset difference, and the difference between the simulated drag friction work data and the actual drag friction work data is less than the second preset difference, thus obtaining the target thermodynamic model.

[0110] Specifically, the electronic device can adjust the parameters of the initial thermodynamic model based on the difference between the experimental data and the actual experimental data, as well as the difference between the simulated drag friction work data and the actual drag friction work data, until the difference between the experimental data and the actual experimental data is less than a first preset difference, and the difference between the simulated drag friction work data and the actual drag friction work data is less than a second preset difference, thus obtaining the target thermodynamic model.

[0111] Optionally, the first preset difference can be 3%, 2%, or other data. The second preset difference can be 1%, 2%, or other data. This application embodiment does not specifically limit the first and second preset differences.

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

[0113] Specifically, electronic devices can add a time dimension to the performance data output items in the target thermodynamic model, explicitly using time as the independent variable, and reasonably set the time step according to actual needs. At the same time, based on the set time step, the relevant elements such as the equations, boundary conditions, and initial conditions are adjusted accordingly to generate a preset transient calculation model.

[0114] For example, for thermodynamic equations involving time derivatives, such as the energy conservation equation (which represents internal energy, heat transfer, and work done by the system), discretization methods such as the finite difference method can be used according to a set time step. For instance, under the forward difference scheme, it can be approximated as where is the internal energy at the i-th time step and is the internal energy at the next time step. This transforms the continuous time derivative equation into an algebraic equation that can be solved at each time step.

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

[0116] Then, the electronic equipment adjusts the boundary conditions. For the intake boundary conditions, it is assumed that intake temperature and intake pressure are the intake boundary conditions. If the changes in the intake system within the time step are relatively slow, for example, the intake temperature can be considered constant in some cases. However, if dynamic changes in the intake system are considered, such as heat exchange and pressure fluctuations within 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-state heat conduction equation within the intake duct (where is the gas density, is the specific heat capacity, is the thermal conductivity, and is the axial position of the duct), combined with the set time step and spatial deviation, a suitable numerical method (such as the Crank-Nicholson method) is used to update the temperature of each node within the intake duct at each time step, thus obtaining the updated intake temperature boundary conditions. Similarly, the intake pressure boundary conditions can be updated using the flow equations of compressible fluids (such as simplified forms of the Euler equation or the Navier-Stokes equation) combined with the time step.

[0117] For exhaust boundary condition adjustments, exhaust back pressure is a crucial boundary condition for exhaust systems, such as when the wastegate valve is closed. During transient processes, exhaust back pressure is related to exhaust flow rate, turbocharger operating conditions, and other factors. Based on a set time step, the exhaust flow equation (where is the exhaust flow rate, is the flow coefficient, is the effective exhaust port area, is the exhaust pressure, is the atmospheric pressure, and is the exhaust density) is updated with the exhaust pressure. If the turbocharger's dynamic response is considered, the turbocharger speed equation (where is the turbocharger speed, is the moment of inertia, is the turbine torque, and is the load torque) also needs to be incorporated. The turbocharger speed is updated based on the time step, thus affecting boundary conditions such as exhaust back pressure.

[0118] For initial condition adjustments, the electronic equipment state parameters are initialized. Specifically, the state parameters at the initial time are set, such as engine speed, initial intake air temperature, initial intake air 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 be in operating condition A, then it is the throttle opening value corresponding to operating condition A.

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

[0120] Step S205: Input the initial operating condition information and the initial throttle opening corresponding to the initial operating condition point into the 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] Please refer to the above description of step 102 for details on this step, which will not be repeated here.

[0122] Step S206: Based on the first transient response performance data, determine whether the target engine has reached the target operating point.

[0123] Please refer to the above description of step 103 for details on this step, which will not be repeated here.

[0124] Step S207: Based on the judgment result, determine the transient response capability corresponding to the target engine.

[0125] Please refer to the description of step 104 above for details on this step, which will not be repeated here.

[0126] The transient response capability testing method provided in this application constructs an initial thermodynamic model corresponding to the target engine based on the target engine's attribute information, ensuring the accuracy of the constructed initial thermodynamic model. It acquires the test operating points corresponding to the target engine; inputs the test operating point data into the steady-state test bench corresponding to the target engine, and outputs the actual test data and actual test drag friction work data corresponding to each test operating point, ensuring the accuracy of the output actual test data and actual test drag friction work data corresponding to each test operating point. Finally, it inputs the test operating point data into the initial thermodynamic model, outputting the simulated test data and simulated drag friction work data corresponding to each test operating point, ensuring the accuracy of the output simulated test data and simulated drag friction work data corresponding to each test operating point. Simulated experimental data and real experimental data were compared separately, and simulated drag friction work data and real drag friction work data were compared separately. Based on the comparison results, the parameters of the initial thermodynamic model were adjusted until the difference between the simulated and real experimental data was less than a first preset difference, and the difference between the simulated and real drag friction work data was less than a second preset difference. This yielded the target thermodynamic model, ensuring its accuracy and preventing inaccuracies in the preset transient calculation model derived from the target thermodynamic model. The target thermodynamic model was then transformed to generate a preset transient calculation model, ensuring the accuracy of the generated preset transient calculation model.

[0127] This embodiment provides a transient response capability testing method, which can be used in the aforementioned electronic devices. Figure 4 This is a flowchart of a transient response capability testing method according to an embodiment of the present invention, such as... Figure 4 As shown, the process includes the following steps:

[0128] Step S301: Obtain the initial operating point corresponding to the target engine.

[0129] Please refer to the above description of step S201 for details on this step, which will not be repeated here.

[0130] Step S302: Input the initial operating condition information and the initial throttle opening corresponding to the initial operating condition point into the 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 on this step, please refer to the description of step S205 above; it will not be repeated here.

[0132] Step S303: Based on the first transient response performance data, determine whether the target engine has reached the target operating point.

[0133] For details on this step, please refer to the description of step S206 above; it will not be repeated here.

[0134] Step S304: Based on the judgment result, determine the transient response capability corresponding to the target engine.

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

[0136] Step S3041: If the target engine reaches the target operating point, then the transient response capability of the target engine is determined to be at 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 has reached the target operating point, and thus the transient response capability corresponding to the target engine is determined to be at the first level.

[0138] For example, the electronic device can 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 thus determines that the transient response capability of the target engine is at the first level.

[0139] Step S3042: If the target engine does not reach the target operating point, then the transient response capability of the target engine is determined to be at the second level.

[0140] The first level is superior to 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 thus the transient response capability of the target engine is determined to be at the second level.

[0142] For example, the electronic device can 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 thus determines that the transient response capability of the target engine is at the second level.

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

[0144] Step S3043: Update the component parameters of the engine component in the preset transient calculation model to generate the target transient calculation model.

[0145] The engine components include at least one of the following: engine intake system, turbocharger and turbo intercooler, engine block, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system.

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

[0147] For example, electronic devices can replace the component parameters of at least one engine component among the engine intake system, turbocharger 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: Input the initial throttle opening corresponding to the initial operating point into the target transient calculation model, and control the initial throttle opening to change to the target throttle opening within a preset time period to obtain 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 condition point and the throttle opening value corresponding to the initial operating condition point into the target transient calculation model, and sets the turbocharger's exhaust bypass valve to always remain closed, that is, with an opening of zero.

[0150] Then, within a preset time period, the electronic equipment controls the initial throttle opening to change to the target throttle opening, while keeping the turbocharger's wastegate valve closed (i.e., with an opening of zero). The target transient calculation model simulates the performance changes of the target engine within the preset time period based on the input throttle opening value, obtaining the corresponding second transient response performance data of 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 can compare the second transient response performance data with the first transient response performance data.

[0153] Step S3046: Based on the comparison results, determine whether the transient response capability of the target engine after replacing the engine components is higher than that of the target engine before replacement.

[0154] Specifically, if the second transient response performance data is better than the first transient response performance data, then the electronic equipment determines that the transient response capability of the target engine after the component parameters of the replaced engine component is higher than that of the target engine before the replacement. That is, the electronic equipment determines that the transient response capability of the target engine is at level two because the transient response capability of the engine component before the component parameters were replaced was poor.

[0155] Step S3047: Compare the second transient response performance data corresponding to each target transient calculation model after replacing the component parameters of the engine components.

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

[0157] Step S3048: Determine the optimal engine component 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 optimal second transient response performance data by comparing the results of the comparison. This determines the optimal engine component, which in turn can generate the optimal engine based on the optimal engine component, thereby ensuring that the transient response performance of the generated optimal engine is optimal.

[0159] The transient response capability testing method provided in this application determines the transient response capability of the target engine to be at the first level if the target engine reaches the target operating point; and determines the transient response capability of the target engine to be at the second level if the target engine does not reach the target operating point. The first level is superior to the second level, which ensures the accuracy of the determined transient response capability of the target engine.

[0160] If the target engine fails to reach the target operating point, and its transient response capability is determined to be at level two, the component parameters of the engine parts in the preset transient calculation model are updated to generate a target transient calculation model. This ensures that the generated target transient calculation model differs from the engine parts 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, acquiring the second transient response performance data corresponding to the target engine. The second transient response performance data is compared with the first transient response performance data. Based on the comparison results, it is determined whether the transient response capability of the target engine after replacing the engine parts' parameters is higher than that before the replacement, thus determining the impact of the replaced engine parts on the engine's transient response capability.

[0161] The second transient response performance data corresponding to each target transient calculation model after replacing the component parameters of the engine components are compared. Based on the comparison results, the impact of each replaced engine component on the transient response performance of the engine can be determined, thereby determining the optimal engine component, improving the transient response capability of the engine, and eliminating the need to test each engine component on a test bench.

[0162] This embodiment also provides a transient response capability testing device, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

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

[0164] The acquisition module 401 is used to acquire the initial operating point corresponding to the target engine;

[0165] The input module 402 is used to input the initial operating condition information and the initial throttle opening corresponding to the initial operating condition point into the 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.

[0166] The judgment module 403 is used to determine whether the target engine has reached the target operating point based on the first transient response performance data;

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

[0168] In some alternative implementations, such as Figure 6 As shown, the aforementioned transient response capability testing device further includes:

[0169] Module 405 is used to build an initial thermodynamic model of the target engine based on the target engine's attribute information. The initial thermodynamic model includes at least one of the following: engine intake system, turbocharger and turbo intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system.

[0170] The adjustment module 406 is used to adjust the initial thermodynamic model and generate the target thermodynamic model corresponding to the target engine.

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

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

[0173] In some optional implementations, the adjustment module 406 is specifically used to input the test condition data corresponding to each test condition point into the initial thermodynamic model, output the simulation test data and the simulation drag friction work data corresponding to each test condition point; compare the simulation test data with the real test data, and compare the simulation drag friction work data with the real drag friction work data; adjust the parameters of the initial thermodynamic model according to the comparison results, until the difference between the test data and the real test data is less than a first preset difference, and the difference between the friction work data and the friction work data is less than a second preset difference, thereby obtaining the target thermodynamic model.

[0174] In some optional implementations, the determination module 404 is specifically used to determine the transient response capability of the target engine as a first level if the target engine reaches the target operating point; and to determine the transient response capability of the target engine as a second level if the target engine does not reach the target operating point; wherein the first level is superior to the second level.

[0175] In some optional implementations, the preset transient calculation model includes at least one of the following: engine intake system, turbocharger and intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system corresponding to the target engine; the aforementioned determining module 404 is specifically used to update the component parameters of the engine components in the preset transient calculation model to generate the target transient calculation model; the engine components include at least one of the following: engine intake system, turbocharger and intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and 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 to obtain the second transient response performance data corresponding to the target engine; the second transient response performance data is compared with the first transient response performance data; based on 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 that of the target engine before 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 to determine the optimal engine component based on the comparison results.

[0177] Further functional descriptions of the above modules and units are the same as those in the corresponding embodiments described above, 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. Here, a unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0179] This invention also provides an electronic device having the above-described features. Figure 5 and Figure 6 The transient response capability testing device shown is shown.

[0180] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of an electronic device provided in an optional embodiment of the present invention, such as... Figure 7 As shown, the electronic device includes one or more processors 10, memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise as required. The processors can process instructions executed within the electronic device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple electronic devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 7 Take a processor 10 as an example.

[0181] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.

[0182] The memory 20 stores instructions executable by at least one processor 10 to cause at least one processor 10 to perform the method shown in the above embodiments.

[0183] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the electronic device. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 20 may optionally include memory remotely located relative to the processor 10, and these remote memories may be connected to the electronic device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

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

[0185] The electronic device also includes an input device 30 and an output device 40. The processor 10, memory 20, input device 30, and output device 40 can be connected via a bus or other means. Figure 7 Taking the example of a connection between China and Israel via a bus.

[0186] Input device 30 can receive input numerical or character information, and generate key signal inputs related to user settings and function control of the electronic device, such as a touch screen, keypad, mouse, trackpad, touchpad, joystick, one or more mouse buttons, trackball, joystick, etc. Output device 40 may include display devices, auxiliary lighting devices (e.g., LEDs), and haptic feedback devices (e.g., vibration motors). The aforementioned display devices include, but are not limited to, liquid crystal displays, light-emitting diodes, displays, and plasma displays. In some alternative embodiments, the display device may be a touch screen.

[0187] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0188] A portion of this invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the invention through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

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

Claims

1. A method for testing transient response capability, characterized in that, The method includes: Obtain the initial operating point corresponding to the target engine; The initial operating condition information and the initial throttle opening corresponding to the initial operating condition 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 to obtain the first transient response performance data corresponding to the target engine. Based on the first transient response performance data, it is determined whether the target engine has reached the target operating point; Based on the judgment result, determine the transient response capability corresponding to the target engine; The method of 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 the preset transient calculation model corresponding to the target engine includes: Based on the attribute 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 the following: engine intake system, turbocharger and turbo intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system; The initial thermodynamic model is adjusted to generate the target thermodynamic model corresponding to the target engine; The target thermodynamic model is transformed to generate the preset transient calculation model; The step of adjusting the initial thermodynamic model to generate the target thermodynamic model corresponding to the target engine includes: Obtain the test operating point corresponding to the target engine; The test condition data corresponding to each of the test conditions is input into the steady-state test bench corresponding to the target engine, and the real test data and real test drag friction work data corresponding to each of the test conditions are output. Based on the actual experimental data and the actual experimental drag friction work data, the initial thermodynamic model is adjusted to generate the target thermodynamic model corresponding to the target engine; The step of adjusting the initial thermodynamic model based on the actual experimental data and the actual experimental drag friction work data to generate the target thermodynamic model corresponding to the target engine includes: Input the test condition data corresponding to each of the test conditions into the initial thermodynamic model, and output the simulation test data and simulation drag friction work data corresponding to each of the test conditions. The simulated test data and the real test data are compared respectively, and the simulated drag friction work data are compared with the real drag friction work data. Based on the comparison results, the parameters of the initial thermodynamic model are adjusted until the difference between the simulated experimental data and the real experimental data is less than a first preset difference, and the difference between the simulated drag friction work data and the real drag friction work data is less than a second preset difference, thus obtaining the target thermodynamic model.

2. The method according to claim 1, characterized in that, The step of determining the transient response capability of the target engine based on the judgment result includes: If the target engine reaches the target operating point, then the transient response capability corresponding to the target engine is determined to be at the first level; If the target engine fails to reach the target operating point, the transient response capability of the target engine is determined to be at the second level; wherein, the first level is superior to the second level.

3. The method according to claim 2, characterized in that, The preset transient calculation model includes at least one of the following: engine intake system, turbocharger and intercooler, engine block, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system corresponding to the target engine; if the target engine does not reach the target operating point, and the transient response capability corresponding to the target engine is determined to be at level two, the method includes: Update the component parameters of the engine components in the preset transient calculation model to generate the target transient calculation model; the engine components include at least one of the engine intake system, the turbocharger and turbo intercooler, the engine body, the engine heat transfer system, the fuel injection system, the combustion system, the engine exhaust system, and the EGR system; The initial throttle opening corresponding to the initial operating point is input into the target transient calculation model, and the initial throttle opening is controlled to change to the target throttle opening within a preset time period to obtain the second transient response performance data corresponding to the target engine. Compare the second transient response performance data with the first transient response performance data; Based on the comparison results, it is determined whether the transient response capability of the target engine after replacing the component parameters of the engine component is higher than that of the target engine before replacement.

4. The method according to claim 3, characterized in that, The method further includes: The second transient response performance data corresponding to each of the target transient calculation models after replacing the component parameters of the engine component are compared; Based on the comparison results, the optimal engine component was determined.

5. A transient response capability testing device, characterized in that, The device includes: The acquisition module is used to acquire the initial operating point corresponding to the target engine; The input module is used to input the initial operating condition information and the initial throttle opening corresponding to the initial operating condition point into the 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; wherein, before inputting the initial operating condition information and the initial throttle opening corresponding to the initial operating condition point into the preset transient calculation model corresponding to the target engine, the input module is also used to build the target engine based on the attribute information of the target engine. The corresponding initial thermodynamic model; the initial thermodynamic model includes at least one of the following: engine intake system, turbocharger and turbo intercooler, engine body, engine heat transfer system, fuel injection system, combustion system, engine exhaust system, and EGR system; the initial thermodynamic model is adjusted to generate a target thermodynamic model corresponding to the target engine; the target thermodynamic model is transformed to generate the preset transient calculation model; wherein, the adjustment of the initial thermodynamic model to generate the target thermodynamic model corresponding to the target engine includes: obtaining the test operating points corresponding to the target engine; and converting each of the test... The test operating condition data corresponding to each operating point is input into the steady-state test bench corresponding to the target engine, and the actual test data and actual test drag friction work data corresponding to each test operating point are output; based on the actual test data and actual test drag friction work data, the initial thermodynamic model is adjusted to generate the target thermodynamic model corresponding to the target engine; wherein, the step of adjusting the initial thermodynamic model based on the actual test data and actual test drag friction work data to generate the target thermodynamic model corresponding to the target engine includes: inputting the test operating condition data corresponding to each test operating point into the steady-state test bench corresponding to the target engine. The data is input into the initial thermodynamic model, and the simulation test data and simulation drag friction work data corresponding to each test condition point are output. The simulation test data and the actual test data are compared respectively, and the simulation drag friction work data and the actual drag friction work data are compared respectively. According to the comparison results, the parameters of the initial thermodynamic model are adjusted until the difference between the test data and the actual test data is less than a first preset difference, and the difference between the friction work data and the actual drag friction work data is less than a second preset difference, thus obtaining the target thermodynamic model. The judgment module is used to determine whether the target engine has reached the target operating point based on the first transient response performance data; The determination module is used to determine the transient response capability corresponding to the target engine based on the judgment result.

6. An electronic device, characterized in that, include: A memory and a processor are communicatively connected, the memory stores computer instructions, and the processor executes the computer instructions to perform the transient response capability test method according to any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to execute the transient response capability testing method according to any one of claims 1 to 4.

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