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CN-122020846-A - Vehicle virtual simulation method, system, device, medium and program

CN122020846ACN 122020846 ACN122020846 ACN 122020846ACN-122020846-A

Abstract

The application relates to the technical field of vehicle testing, in particular to a vehicle virtual simulation method, a system, equipment, a medium and a program, wherein the method comprises the steps of acquiring application scene acquisition demand data of a target user group and establishing a vehicle dynamics model according to the application scene acquisition demand data; and receiving a control instruction sent by a user through an interactive interface, and driving a virtual vehicle to perform real-time motion and interactive simulation in the scene by using a physical system of a target engine to generate a simulation report. Therefore, the problems that the vehicle virtual simulation system in the related technology is generally insufficient in interactivity and reality and is difficult to meet the high standard requirements of the automobile industry on high-precision and high-immersion experience are solved.

Inventors

  • YANG SHIMING

Assignees

  • 奇瑞新能源汽车股份有限公司

Dates

Publication Date
20260512
Application Date
20260106

Claims (10)

  1. 1. A vehicle virtual simulation method, wherein the method is implemented based on a target engine, and comprises the following steps: Acquiring application scene acquisition demand data of a target user group, determining at least one user demand according to the application scene acquisition demand data, and calling a vehicle model database according to the user demand to establish a vehicle dynamics model in a target engine; Determining the road type and the environment parameter of the test scene according to the user requirement, constructing the road type and the environment parameter by utilizing a target engine, and generating the test scene according to the vehicle dynamics model and the road type and the environment parameter of the test scene; Receiving a control instruction sent by a user through an interactive interface, driving the virtual vehicle to perform real-time motion and interactive simulation in the scene by using a physical system of a target engine, recording performance response data, user operation data and environment interaction data of the vehicle in the experience process, and generating a simulation report according to the performance response data, the user operation data and the environment interaction data of the vehicle.
  2. 2. The vehicle virtual simulation method according to claim 1, wherein the building a vehicle dynamics model in a target engine according to the user demand includes: Identifying a basic vehicle model configured by a user through a graphical interface; And solving and calling a corresponding vehicle dynamics model in the vehicle model data according to the basic vehicle model, identifying a user-modified vehicle parameter instruction, and updating and rendering the corresponding vehicle dynamics model in the target engine according to the modified vehicle parameter instruction.
  3. 3. The vehicle virtual simulation method according to claim 2, wherein the vehicle dynamics model includes longitudinal dynamics, lateral dynamics, vertical suspension dynamics and tire mechanics, and is used for real-time calculation of acceleration, yaw rate, body posture and tire slip state of the virtual vehicle according to user manipulation instructions and virtual road surface states.
  4. 4. The vehicle virtual simulation method of claim 2, wherein the vehicle model database further comprises a vehicle collision volume hierarchy, a replaceable visual suite, a trigger configuration of the interactive components, and corresponding interactive state machines for supporting vehicle visual switching and component interactive simulation.
  5. 5. The vehicle virtual simulation method of claim 1, wherein the road type comprises at least one of a road function type, a number of lanes, a road surface condition, a traffic flow density, a surrounding vehicle behavior pattern, and a static or dynamic obstacle event, and the environmental parameter comprises at least one of a weather type and intensity, a time and light condition, a wind speed and a wind direction.
  6. 6. The virtual simulation method of a vehicle according to claim 1, wherein the simulation report includes at least one of acceleration performance comparison, braking distance comparison, and stability indicator comparison under different weather and road conditions combinations, and outputs the comparison result as a exportable structured data file.
  7. 7. A vehicle virtual simulation system, comprising: A vehicle model database comprising vehicle dynamics parameters and multi-dimensional vehicle model data; The integrated environment module is used for simulating various meteorological conditions in the virtual environment; The scene construction and simulation engine is respectively connected with the vehicle model database and the integrated environment module and is used for retrieving the multidimensional vehicle model data and the meteorological conditions and constructing virtual driving scenes with different road types and environment factors; The test running module is connected with the scene construction and simulation engine and is used for responding to the interactive operation of a user and driving the virtual vehicle to run in the virtual driving scene to generate a test result; the data analysis module is connected with the interaction and test operation module or the scene construction and simulation engine and is used for collecting performance data of the virtual vehicle in the operation process in real time and generating a test result based on the performance data.
  8. 8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the vehicle virtual simulation method of any of claims 1-6.
  9. 9. A computer readable storage medium having stored thereon a computer program or instructions, which when executed by a processor, is for implementing a vehicle virtual simulation method according to any of claims 1-6.
  10. 10. A computer program product comprising a computer program or instructions which, when executed, implements the vehicle virtual simulation method as claimed in any one of claims 1 to 6.

Description

Vehicle virtual simulation method, system, device, medium and program Technical Field The present application relates to the field of vehicle testing technologies, and in particular, to a vehicle virtual simulation method, system, device, medium, and program. Background With the rapid development of computer graphics, virtual reality and augmented reality technologies, the automobile industry is accelerating to digital and intelligent transformation. In the related technology, the traditional automobile research, development, marketing and training highly depend on the physical sample car and the physical test environment, so that the cycle is long, the cost is high, and obvious limitations exist in the aspects of early design verification and user interaction experience. Although some automobile experience systems based on virtual simulation technology are put into use at present, most of the systems still have obvious defects in terms of model precision, environment reality, physical interactivity, data feedback capability and the like, and complex dynamic characteristics in a real driving scene are difficult to fully restore. Especially in key dimensions such as changeable weather conditions, diversified road environments, high-fidelity vehicle dynamics simulation and the like, the prior art often lacks enough detail expressive force and real-time response capability, and restricts popularization and deepening of the vehicle in high-end application scenes such as automobile design verification, immersive marketing, professional driving training and the like. Disclosure of Invention The application provides a vehicle virtual simulation method, a system, equipment, a medium and a program, which are used for solving the problems that the vehicle virtual simulation system in the related art is generally insufficient in interactivity and poor in realism, and is difficult to meet the high standard requirements of the automobile industry on high-precision and high-immersion experience. An embodiment of the first aspect of the application provides a vehicle virtual simulation method, which is realized based on a target engine and comprises the following steps of acquiring application scene acquisition demand data of a target user group, determining at least one user demand according to the application scene acquisition demand data, calling a vehicle model database according to the user demand to establish a vehicle dynamics model in the target engine, determining road type and environment parameters of a test scene according to the user demand, constructing the road type and the environment parameters by using the target engine, generating the test scene according to the road type and the environment parameters of the vehicle dynamics model and the test scene, receiving a control instruction sent by a user through an interactive interface, driving the virtual vehicle to perform real-time motion and interactive simulation in the scene by using a physical system of the target engine, recording performance response data, user operation data and environment interaction data of the vehicle in the experience process, and generating a simulation report according to the performance response data, the user operation data and the environment interaction data of the vehicle. Optionally, the building of the vehicle dynamics model in the target engine according to the user demand comprises the steps of identifying a basic vehicle model configured by a user through a graphical interface, solving and calling a corresponding vehicle dynamics model in vehicle model data according to the basic vehicle model, identifying a user modifying vehicle parameter instruction, and updating and rendering the corresponding vehicle dynamics model in the target engine according to the modifying vehicle parameter instruction. Optionally, the vehicle dynamics model includes longitudinal dynamics, lateral dynamics, vertical suspension dynamics and tire mechanics, and is used for calculating acceleration, yaw rate, vehicle body posture and tire slip state of the virtual vehicle in real time according to the user control command and the virtual road surface state. Optionally, the vehicle model database further comprises a vehicle collision body hierarchical structure, a replaceable appearance suite, trigger configurations of the interactable components, and corresponding interaction state machines for supporting vehicle appearance switching and component interaction simulation. Optionally, the road type comprises at least one of road function type, number of lanes, road surface condition, traffic flow density, surrounding vehicle behavior pattern and static or dynamic obstacle event, and the environmental parameter comprises at least one of weather type and intensity, time and illumination condition, wind speed and wind direction. Optionally, the simulation report comprises at least one of acceleration performance comparison, braking distance compa