Simulations on Consumer Tests: A Systematic Evaluation Approach in an Industrial Case Study
Paper i proceeding, 2014
Context: Consumer tests for vehicles have long a tradition of almost two decades in Europe to assess vehicular safety abilities. For active safety systems like an emergency braking guard, different consumer-test-organizations (CTOs) around the world intensify now the challenges for automotive Original Equipment Manufacturer (OEM) in terms of specific test protocols.
Objective: This work focuses on the systematic generation of possible vehicle trajectories within the allowed tolerance ranges for a simulation environment. It is of great interest to which extent the different test parameters will affect the brake time- points in each test case as well as the residual velocity in case of a collision with a target vehicle.
Method: A formal model using a graph-based representation of the allowed variances based on relevant time-points allows the selection of relevant trajectories as test cases. These trajec- tories are simulated afterwards to investigate its influence on the system’s performance.
Results: The systematic approach unveiled varying action points in time of the software of an emergency braking guard, which could influence the overall result of a consumer test.
Conclusion: The use of a structured simulative approach for evaluating an active safety system during the development process enables a more focused feedback and supports extensive tests on real proving grounds by systematic and automated robustness analyses for example.