Virtual Test Bench for Driver Assistance Human Behavior Simulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for testing driver assistance systems in vehicles, particularly those at automation levels 3 to 5, face challenges in achieving realistic representation and simulation of human behavior, leading to inadequate testing of critical driving scenarios due to the limitations of using dummies and real test driving data.
Innovation Solution
A method and system that utilize simulation means and a motion capture system to generate a virtual test environment with virtual living beings and vehicles, capturing and recording motion data to stimulate and test driver assistance systems, allowing for the creation of realistic and diverse critical scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dummies and real test driving data are used for testing driver assistance systems, then the testing process is simple to implement, but the realism and diversity of human behavior representation is insufficient
Solution Approach 1:
The patent creates virtual copies of real living beings through motion capture technology. Motion data from real humans is recorded and used to generate virtual representations that replicate authentic human movements and behaviors. This allows realistic human behavior to be tested without using actual humans in dangerous scenarios, resolving the contradiction between realism and safety.
Solution Approach 2:
The patent introduces a virtual test environment as an intermediary between the driver assistance system and real-world testing. This virtual environment mediates the interaction by providing realistic scenarios through virtual living beings while eliminating the risks of real-world testing. The motion capture system serves as another intermediary that translates real human motion into virtual representations.
2Reliability
If real test driving data is collected to create training datasets, then the data reflects real scenarios, but the time and effort required to capture critical scenarios is excessive
Solution Approach 1:
The patent performs preliminary action by pre-capturing motion data from real living beings across various scenarios before actual testing begins. This motion data is stored and can be rapidly deployed to create virtual living beings for any test scenario, eliminating the need to capture data in real-time during testing and significantly reducing the time required to set up critical scenario tests.
Solution Approach 2:
The patent creates reusable virtual copies of human motion patterns that can be instantiated multiple times across different test scenarios. Once motion data is captured, it becomes a template that can be rapidly deployed without recapturing, allowing critical scenarios to be tested repeatedly and efficiently while maintaining realistic human behavior representation.
3Adaptability or versatility
If virtual test environments with motion capture are implemented, then diverse and realistic scenarios can be generated, but the system complexity and computational requirements increase
Solution Approach 1:
The patent creates a universal motion capture system that serves multiple functions: capturing real human motion, generating virtual living beings, creating test scenarios, and providing training data. This multi-functional approach consolidates what would otherwise require separate systems into a single platform, managing complexity while maximizing versatility and scenario diversity.
Data Source
AI summary
The invention relates to a method for operating a test bench for vehicles using simulation means and a motion capture system, comprising the following steps: generating a virtual test environment with at least one virtual living being and at least one virtual vehicle using the simulation means, wherein one of the virtual living beings is a virtual representation of a real living being and wherein one of the virtual vehicles is a virtual representation of a vehicle with a driver assistance system, wherein additionally at least parts of the vehicle are operated as a real test specimen on the test bench, wherein the driver assistance system is operated, particularly stimulated, based on the virtual test environment; stimulating the real living being in the motion capture system based on the generated virtual environment using a stimulus; capturing motion data using the motion capture system, wherein the motion data describe a temporal course of the pose of at least one part of an anatomical structure of the real living being; and recording the captured motion data.