Autonomous Driving VIL Verification Across Diverse Virtual Roads
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current vehicle-in-the-loop (VIL) systems for autonomous driving function verification are limited in simulating diverse road environments, requiring frequent changes to real test roads, which is costly and inconvenient, and cannot verify autonomous driving performance without a real test road corresponding to the simulated virtual road environment.
Innovation Solution
A VIL system-based autonomous driving performance verification method that creates a virtual road environment using a simulator, converts the real position and posture of an autonomous vehicle into a virtual one, and synchronizes this information to enable function verification without needing a real test road, allowing verification on any road or location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a real test road is used for simulator-based verification, then the virtual road environment can be accurately simulated, but the system cannot verify autonomous driving performance in diverse road environments without changing the physical test road
Solution Approach 1:
The patent creates virtual copies of road environments using pre-stored road information data in the road environment database. Instead of requiring physical test roads for each verification scenario, the system generates virtual road environments that replicate real-world road characteristics, allowing diverse verification scenarios without physical road changes
Solution Approach 2:
The system changes parameters of the virtual road environment by selecting different road information data from the database, adjusting road geometry, traffic conditions, and environmental parameters to create various verification scenarios without physical modifications
2Adaptability or versatility
If the test road is changed frequently to verify different road environments, then comprehensive autonomous driving performance can be verified, but huge temporal and financial burdens are incurred
Solution Approach 1:
Road environment data is pre-captured and stored in the database before verification activities. This preliminary action eliminates the need for time-consuming physical road setup during verification, as virtual environments can be instantly generated from stored data
Solution Approach 2:
Virtual copies of various road environments are pre-created and stored, allowing rapid switching between different verification scenarios without physical road changes, thus eliminating setup time and associated costs
3Measurement precision
If the autonomous vehicle is driven only on a real road corresponding to the simulated virtual road, then accurate verification is possible, but verification on various virtual road environments becomes inconvenient
Solution Approach 1:
The patent introduces a calculation module as an intermediary that maps the real vehicle's position and posture to the virtual road environment coordinate system. This allows the vehicle to operate on any physical road while the system accurately tracks and verifies performance against the virtual environment, decoupling physical location from verification accuracy
Data Source
AI summary
There is provided a VIL system-based autonomous driving function verification method. According to embodiments of the disclosure, a VIL system enables an autonomous vehicle to verify an autonomous driving function by interlocking with a virtual road environment in any other place, without having to go to a real test road corresponding to a simulated virtual road environment. Accordingly, an autonomous driving function can be rapidly verified based on a VIL system with respect to various virtual road environments without changing a driving place, so that speed and convenience in development of autonomous driving technology can be enhanced.