The increasing automation of vehicles causes increasing challenges in their homologation. For the certification and release of autonomous vehicles theoretically an infinite number of test cases must be considered to cover all scenarios of real traffic. Even with modern methods and simulation tools the resulting test room is unmanageable. For this reason, new, more efficient methods are needed. The scenario-based approach, which is currently being developed in the PEGASUS project, attempts to limit the test room by taking into account only the most interesting and relevant traffic scenarios. The aim is a high coverage of the test room by providing only a limited number of representative, error-sensitive and low-redundancy test cases. The definition of these so-called worst-case scenarios represents one of the major challenges.
In the context of this thesis, the calculation of optimal approach paths to autonomous vehicles is used as basis for the definition of the worst-case scenarios. The phenomenological sensor models created for this purpose are implemented in a calculation model and simulate the sensor types used for environment detection, such as radar, ultra-sonic, lidar and video camera. Based on the sensor models, the merged sensor coverage of the autonomous ego-vehicle is calculated, which describes the probability of detection of an object depending on its properties, position and the prevailing environment conditions. Using optimization methods, the resulting heatmap is used to calculate the optimal approach paths to autonomous vehicles under different conditions.
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The increasing automation of vehicles causes increasing challenges in their homologation. For the certification and release of autonomous vehicles theoretically an infinite number of test cases must be considered to cover all scenarios of real traffic. Even with modern methods and simulation tools the resulting test room is unmanageable. For this reason, new, more efficient methods are needed. The scenario-based approach, which is currently being developed in the PEGASUS project, attempts to lim...
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