A fuel consumption compliance verification method, system, device and storage medium

Abstract

The application provides a fuel consumption standard verification method, system, device and storage medium, relates to the field of automobile development technology, and aims to solve the technical problems of long test period and high cost of existing fuel consumption standard verification. The method comprises the following steps: arranging a type spectrum vehicle model according to the configuration characteristics of a vehicle, and selecting one of the type spectrum vehicles to perform a fuel consumption test; establishing a high-precision simulation model based on test data; performing matrix simulation testing on different configuration characteristic vehicles in the type spectrum based on the high-precision simulation model; calculating the technology and cost budget of the test vehicle under different test schemes, and screening the optimal scheme that meets the fuel consumption standard. The configuration characteristics of each vehicle in the type spectrum can be identified from the fuel consumption angle, and the list of target vehicles that need to be tested can be quickly sorted out. Only one target vehicle test needs to be completed, which greatly saves the time and cost of demonstration work.

Description

Technical Field

[0001] This application relates to the field of automotive development technology, and in particular to a fuel consumption compliance verification method, system, device, and storage medium. Background Technology

[0002] Before any automotive product is announced or sold, fuel consumption compliance verification must be conducted. This involves testing the fuel consumption level of the current model, identifying fuel consumption discrepancies, and developing relevant technical solutions for upgrades and improvements. Traditional fuel consumption compliance verification mainly relies on testing various relevant vehicle models and implementing standardized technical upgrades for models that fail to meet the standards.

[0003] However, this method has certain shortcomings. In terms of testing, automakers have numerous models across their product lines, resulting in a massive workload, long testing cycles, and high testing costs. Furthermore, different models have varying levels of fuel efficiency compliance during upgrades; adopting a uniform technical solution would lead to redundant fuel efficiency compliance for some models, while also increasing costs and impacting product competitiveness. Summary of the Invention

[0004] This application provides a fuel consumption compliance verification method, system, equipment, and storage medium to solve the technical problems of long testing cycles and high costs in existing fuel consumption compliance verification tests.

[0005] On the one hand, this application provides a method for verifying fuel consumption compliance, the method comprising the following steps:

[0006] Step S1: Organize the model range according to the vehicle configuration characteristics, and select one of the models to conduct a fuel consumption test.

[0007] Step S2: Based on the test data, establish a high-precision simulation model;

[0008] Step S3: Based on the high-precision simulation model, perform matrix simulation tests on vehicle models with different configuration features across the entire model range;

[0009] Step S4: Calculate the technical and cost budgets for the test vehicle under different test schemes, and select the optimal scheme that meets the fuel consumption standard.

[0010] In one implementation of this application, the configuration features include the following: engine, transmission, drive axle, body, and tires.

[0011] In one implementation of this application, step S3 involves performing matrix simulation tests on vehicles with different configuration features across the entire model range. Specifically, this involves converting the configuration features affecting fuel consumption into performance parameters in the simulation model. The performance parameters include the following: engine universal characteristic parameters, transmission speed ratio and efficiency parameters, drive axle speed ratio and efficiency parameters, vehicle body drag coefficient, and tire rolling resistance coefficient.

[0012] In one implementation of this application, in step S3, the target operating condition of the high-precision simulation model includes vehicle speed information and gear information.

[0013] In one implementation of this application, step S4, calculating the technical and cost budgets of the test vehicle under different test schemes, specifically includes:

[0014] The technical measures, effects, and corresponding cost increases affecting fuel consumption in the engine system, transmission system, drive axle system, body system, and tire system are summarized and categorized.

[0015] A technology-cost pre-research curve is formed from low to high.

[0016] In one implementation of this application, step S4, selecting the optimal solution that meets the fuel consumption target, specifically involves:

[0017] Based on the technology-cost pre-research curve, the performance parameters in the high-precision simulation model are substituted to form a simulation matrix representing a combination of various technical measures.

[0018] Substitute the corresponding cost increment from the technology-cost pre-research curve into the fuel consumption target-compliant scheme to obtain the total cost of the scheme and select the optimal cost scheme.

[0019] This application also provides a fuel consumption compliance verification system, the system comprising:

[0020] The vehicle model sorting module is used to sort the model range of vehicles according to their configuration characteristics and select one of the vehicles in the model range for fuel consumption test.

[0021] The model building module is used to build high-precision simulation models based on test data;

[0022] The testing module is used to perform matrix simulation tests on vehicles with different configuration features across the entire model range based on the high-precision simulation model.

[0023] The scheme determination module is used to calculate the technical and cost budgets of the test vehicle under different test schemes and to screen the optimal scheme that meets the fuel consumption standards.

[0024] This application also provides a fuel consumption compliance verification device, the device comprising:

[0025] At least one processor; and,

[0026] A memory communicatively connected to the at least one processor; wherein,

[0027] The memory stores instructions that can be executed by the at least one processor, which enables the at least one processor to complete the aforementioned fuel consumption compliance verification method.

[0028] This application also provides a non-volatile computer storage medium for fuel consumption compliance verification, which stores computer-executable instructions for executing the aforementioned fuel consumption compliance verification method.

[0029] This application provides a fuel consumption compliance verification method, system, equipment, and storage medium that can identify the configuration characteristics of various vehicle models in a model range from a fuel consumption perspective, and quickly compile a list of target vehicle models to be tested. Only one target vehicle needs to be tested, greatly saving time and costs in the verification process. It can quickly verify the fuel-saving effects of different technical solutions and obtain the fuel consumption compliance technical solution. It can quickly compare the total cost of different technical solutions and select the optimal cost-effective fuel consumption compliance technical solution. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0031] Figure 1 A flowchart of a fuel consumption compliance verification method provided in this application embodiment;

[0032] Figure 2 This is a dynamic graph showing the vehicle speed and gear position during the test in the embodiments of this application;

[0033] Figure 3 This is a preliminary research diagram of engine B10.43 in this application;

[0034] Figure 4 This is a preliminary design diagram of the gearbox of embodiment 12 in this application;

[0035] Figure 5 This is a preliminary research diagram of the drive axle of embodiment 5.26 in this application;

[0036] Figure 6 This is a preliminary design diagram of the G-type vehicle body for an embodiment of this application;

[0037] Figure 7 This is a preliminary research diagram of the D-type tire in this application.

[0038] Figure 8 This is a comparison chart showing the cost increments of various solutions in the embodiments of this application;

[0039] Figure 9 A diagram illustrating the composition of a fuel consumption compliance verification system provided in the application embodiments;

[0040] Figure 10 This application provides a schematic diagram of a fuel consumption compliance verification device. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] This application provides a method, system, device, and storage medium for verifying fuel consumption compliance. The technical solutions proposed in this application will be described in detail below with reference to the accompanying drawings.

[0043] Figure 1 This is a flowchart illustrating a fuel consumption compliance verification method provided in an embodiment of this application. Figure 1 As shown, the method mainly includes the following steps:

[0044] Step S1: Organize the model range according to the vehicle configuration characteristics, and select one of the models to conduct a fuel consumption test.

[0045] Step S2: Based on the test data, establish a high-precision simulation model;

[0046] Step S3: Based on the high-precision simulation model, perform matrix simulation tests on vehicle models with different configuration features across the entire model range;

[0047] Step S4: Calculate the technical and cost budgets for the test vehicle under different test schemes, and select the optimal scheme that meets the fuel consumption standard.

[0048] In this embodiment of the application, the configuration features include the following: engine, transmission, drive axle, body, and tires.

[0049] In this embodiment of the application, step S3 involves performing matrix simulation tests on vehicles with different configuration features across the entire model range. Specifically, this involves converting the configuration features that affect fuel consumption into performance parameters in the simulation model. The performance parameters include the following: engine universal characteristic parameters, transmission speed ratio and efficiency parameters, drive axle speed ratio and efficiency parameters, vehicle body drag coefficient, and tire rolling resistance coefficient.

[0050] In this embodiment of the application, in step S3, the target operating condition of the high-precision simulation model includes vehicle speed information and gear information.

[0051] In this embodiment of the application, step S4, calculating the technical and cost budgets of the test vehicle under different test schemes, specifically includes:

[0052] The technical measures, effects, and corresponding cost increases affecting fuel consumption in the engine system, transmission system, drive axle system, body system, and tire system are summarized and categorized.

[0053] A technology-cost pre-research curve is formed from low to high.

[0054] In this embodiment of the application, step S4, selecting the optimal solution that meets the fuel consumption standard, specifically involves:

[0055] Based on the technology-cost pre-research curve, the performance parameters in the high-precision simulation model are substituted to form a simulation matrix representing a combination of various technical measures.

[0056] Substitute the corresponding cost increment from the technology-cost pre-research curve into the fuel consumption target-compliant scheme to obtain the total cost of the scheme and select the optimal cost scheme.

[0057] This application example uses the fuel consumption compliance demonstration of an 8×4 dump truck as an example. As shown in Table 1 below, based on the configuration characteristics of the 8×4 dump truck model spectrum, the target model list for fuel consumption demonstration is obtained by sorting out the engine model and horsepower, transmission model, drive axle model and speed ratio, body drag coefficient and tire rolling resistance coefficient.

[0058]

[0059] Table 1 Vehicle Configuration Features

[0060] The test vehicle 1231 has the same configuration characteristics as model number 5 in the list of vehicle models in Table 1. This vehicle was selected for testing, and dynamic information such as vehicle speed and gear position was collected during the test. Figure 2 As shown, the final fuel consumption test result was 44.02L / 100km.

[0061] The configuration features of vehicle model number 5 were converted into simulation model parameters. The features of engine B10.43 were converted into speed-torque-fuel consumption rate curve parameters representing the universal characteristics of the engine. The features of transmission type 12 were converted into gear-ratio-transmission efficiency parameters, as shown in Table 2 below.

[0062] 1 14.941 96.1 2 11.611 96.4 3 8.986 96.6 4 6.987 96.8 5 5.514 97.0 6 4.318 98.4 7 3.46 97.8 8 2.689 98.1 9 2.081 98.3 10 1.618 98.4 11 1.277 98.6 12 1 99.8

[0063] Table 2 Gear-Ratio-Transmission Efficiency Parameters

[0064] The characteristics of the 5.26 type drive axle are converted into speed ratio-transmission efficiency parameters, with a transmission ratio of 5.26 and a transmission efficiency of 96.0%. The characteristics of the G-type body are converted into a drag coefficient parameter of 0.72. The characteristics of the D-type tires are converted into a rolling resistance coefficient parameter of 7.0. Figure 2 The vehicle dynamic information was used as the target working condition for simulation calculation, and a high-precision simulation result of 44.27L / 100km was obtained.

[0065] The configuration features of each vehicle in the target vehicle list in Table 1 are converted into simulation model parameters using the same method, resulting in a simulation matrix representing different configurations of the entire model range, as shown in Table 3 below.

[0066]

[0067] Table 3 Simulation matrix table for different configurations of the full model range

[0068] Using the dynamic information in Table 1 as the target operating condition, simulation calculations were performed on all vehicle models in the matrix to obtain the fuel consumption compliance test results for each model in the full range, as shown in Table 4 below.

[0069]

[0070] Table 4. Statistical Table of Fuel Consumption Compliance Test Results for All Models

[0071] Regarding the failure of fuel consumption testing for model number 5, based on the maturity of the technical measures of each subsystem and using the official implementation date of regulations as the target milestone, a preliminary study was conducted on the fuel-saving effects and cost increases of various technical measures that could reduce fuel consumption within this system. These were then combined into a technology-cost preliminary study curve with progressively increasing fuel-saving rates and costs. The preliminary study plan for the B10.43 engine is as follows: Figure 3 The following are proposed solutions: Solution 1: Price reduction of 2g / kWh, cost of 200 yuan, key technology is low-viscosity engine oil; Solution 2: Price reduction of 4g / kWh, cost of 500 yuan, key technologies are low-viscosity engine oil and low-friction piston rings; Solution 3: Price reduction of 8g / kWh, cost of 1400 yuan, key technologies are low-viscosity engine oil, low-friction piston rings, and a high-efficiency turbocharger; Solution 4: Price reduction of 16g / kWh, cost of 5000 yuan, key technologies are a new cylinder block structure, low-viscosity engine oil, low-friction piston rings, and a high-efficiency turbocharger.

[0072] Preliminary research plan for Type 12 gearbox, such as Figure 4 The following options are proposed: Option 1: Increase of 0.05%, cost of 130 yuan, technical point is oil seal optimization; Option 2: Increase of 0.1%, cost of 300 yuan, technical point is lubrication optimization; Option 3: Increase of 0.2%, cost of 700 yuan, technical point is gear meshing surface process improvement.

[0073] The preliminary research scheme for the 5.26 type drive axle is as follows: Figure 5 As shown, Option 1: Increase of 0.05%, cost of 130 yuan, the key technology is oil seal optimization; Option 2: Increase of 0.15%, cost of 350 yuan, the key technologies are lubrication optimization and oil seal optimization; Option 3: Increase of 0.25%, cost of 750 yuan, the key technologies are offset distance optimization, lubrication optimization, and oil seal optimization.

[0074] G-type body pre-research scheme such as Figure 6 As shown. Option 1: Price reduction of 0.005, cost of 300 yuan, technical points include optimization of exterior trim gaps; Option 2: Price reduction of 0.01, cost of 800 yuan, technical points include optimization of exterior trim gaps and windshield curvature; Option 3: Price reduction of 0.02, cost of 2000 yuan, technical points include optimization of exterior trim gaps, windshield curvature, and bumper; Option 4: Price reduction of 0.06, cost of 8000 yuan, technical points include optimization of exterior trim gaps, windshield curvature, bumper, and electronic rearview mirrors.

[0075] Pre-research scheme for type D tires, such as Figure 7 As shown. Option 1: Price reduction of 1%, cost of 200 yuan, the key technology is tread optimization; Option 2: Price reduction of 2%, cost of 800 yuan, the key technology is pattern structure optimization; Option 3: Price reduction of 3%, cost of 2400 yuan, the key technology is formula optimization.

[0076] Substituting the fuel-saving effects of the pre-researched technical measures into the simulation model parameters, and based on the number of pre-researched schemes in each subgroup, a simulation matrix representing multiple combinations of technical measures is obtained, totaling 5×4×4×5×4=1600 matrices. Specific examples of the matrix are not provided in this manual. Specifically, engine optimization is converted into a decrease in fuel consumption rate at each speed-torque point; transmission optimization into an increase in transmission efficiency; drive axle optimization into an increase in drive axle transmission efficiency; body optimization into a decrease in drag coefficient; and tire optimization into a decrease in rolling resistance coefficient. Figure 2 The vehicle's dynamic information was used as the target operating condition to simulate and calculate all combinations of schemes in the matrix, obtaining the fuel consumption compliance test results for each scheme. Based on the next stage limit of 38.2L / 100km released in the draft regulations, 64 technical schemes that can achieve fuel consumption compliance can be selected. Specific examples of these schemes are not provided in this manual. Considering simulation and test deviations, six schemes within a 2% deviation range of the fuel consumption limit were selected as the barely compliant schemes for further cost verification. The cost increments of different technical measures in the pre-research schemes were substituted into each scheme to obtain a comparison of the cost increments of each scheme, as shown below. Figure 8 As shown. Finally, considering the cost comparison, scheme 772 was selected as the optimal cost-effective technical solution to achieve the fuel consumption target.

[0077] The above is a fuel consumption compliance verification method provided by an embodiment of this application. Based on the same inventive concept, an embodiment of this application also provides a fuel consumption compliance verification system. Figure 9 A diagram illustrating the composition of a fuel consumption compliance verification system provided in this application embodiment is shown below. Figure 9 As shown, the system mainly includes:

[0078] The vehicle model sorting module 901 is used to sort the model range according to the configuration characteristics of the vehicle and select one of the models to conduct fuel consumption test.

[0079] Model building module 902 is used to build a high-precision simulation model based on test data;

[0080] Test module 903 is used to perform matrix simulation tests on vehicles with different configuration features across the entire model range based on the high-precision simulation model.

[0081] The scheme determination module 904 is used to calculate the technical and cost budgets of the test vehicle under different test schemes and to screen the optimal scheme that meets the fuel consumption standards.

[0082] The above describes a fuel consumption compliance verification system provided in this application. Based on the same inventive concept, this application also provides a fuel consumption compliance verification device. Figure 10 A schematic diagram of a fuel consumption compliance verification device provided in this application embodiment is shown below. Figure 10 As shown, the device mainly includes: at least one processor 1001; and a memory 1002 communicatively connected to the at least one processor; wherein the memory 1002 stores instructions that can be executed by the at least one processor 1001, and the instructions are executed by the at least one processor 1001 to enable the at least one processor 1001 to complete the aforementioned fuel consumption compliance verification method.

[0083] In addition, this application embodiment also provides a non-volatile computer storage medium for fuel consumption compliance verification, which stores computer-executable instructions for executing the aforementioned fuel consumption compliance verification method.

[0084] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0085] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0086] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0087] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0088] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0089] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0090] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for verifying fuel consumption compliance, characterized in that, The method includes the following steps: Step S1: Organize the model range according to the vehicle configuration characteristics, and select one of the models to conduct a fuel consumption test. Step S2: Based on the test data, establish a high-precision simulation model; Step S3: Based on the high-precision simulation model, perform matrix simulation tests on vehicles with different configuration features across the entire model range; specifically, in step S3, performing matrix simulation tests on vehicles with different configuration features across the entire model range involves converting configuration features affecting fuel consumption into performance parameters in the simulation model; wherein, the performance parameters include the following items: engine universal characteristic parameters, transmission speed ratio and efficiency parameters, drive axle speed ratio and efficiency parameters, vehicle body drag coefficient, and tire rolling resistance coefficient; Step S4: Calculate the technical and cost budgets for the test vehicle under different test schemes, and select the optimal scheme that meets the fuel consumption standard.

2. The fuel consumption compliance verification method according to claim 1, characterized in that, The configuration features include the following: engine, transmission, drive axle, body, and tires.

3. The fuel consumption compliance verification method according to claim 1, characterized in that, In step S3, the target operating conditions of the high-precision simulation model include vehicle speed information and gear information.

4. The fuel consumption compliance verification method according to claim 1, characterized in that, In step S4, the technical and cost budgets for the test vehicle under different test schemes are calculated, specifically as follows: The technical measures, effects, and corresponding cost increases affecting fuel consumption in the engine system, transmission system, drive axle system, body system, and tire system are summarized and categorized. A technology-cost pre-research curve is formed from low to high.

5. The fuel consumption compliance verification method according to claim 4, characterized in that, In step S4, the optimal solution that meets the fuel consumption target is selected, specifically as follows: The performance parameters in the high-precision simulation model are substituted into the technology-cost pre-research curve to form a simulation matrix representing a combination of various technical measures. Substitute the corresponding cost increment from the technology-cost pre-research curve into the fuel consumption target-compliant scheme to obtain the total cost of the scheme and select the optimal cost scheme.

6. A fuel consumption compliance verification system, employing the fuel consumption compliance verification method described in claim 1, characterized in that, The system includes: The vehicle model sorting module is used to sort the model range of vehicles according to their configuration characteristics and select one of the vehicles in the model range for fuel consumption test. The model building module is used to build high-precision simulation models based on test data; The testing module is used to perform matrix simulation tests on vehicles with different configuration features across the entire model range based on the high-precision simulation model. The scheme determination module is used to calculate the technical and cost budgets of the test vehicle under different test schemes and to screen the optimal scheme that meets the fuel consumption standards.

7. A fuel consumption compliance verification device, characterized in that, The device includes: At least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform a fuel consumption compliance verification method as described in any one of claims 1-5.

8. A non-volatile computer storage medium for fuel consumption compliance verification, storing computer-executable instructions, characterized in that, The computer-executable instructions are used to execute: a fuel consumption compliance verification method according to any one of claims 1-5.

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