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Optimization of emergency trajectories for autonomous vehicles with respect to linear vehicle dynamics

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5 Author(s)

This paper looks at a trajectory planning strategy for autonomous vehicles. The pre-defined nominal trajectory is analyzed with reference to obstacles modeled from circular safety areas. Based on the results of this analysis an emergency trajectory is calculated by using the method of elastic bands. The behavior of the trajectories calculated with this method has been proven to provide flexible trajectories with minimal changes of curvature and therefore good driveability. However in a second step the dynamic behavior of the vehicle is evaluated using the well-known bicycle model along with a first approximation of the steering angle along the trajectory. The trajectory of the vehicle calculated from this steering angle is then improved by iterating the steering angle based on an optimization algorithm

Published in:

Advanced Intelligent Mechatronics. Proceedings, 2005 IEEE/ASME International Conference on

Date of Conference:

24-28 July 2005

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