Using an adaptive FEM to determine the optimal control of a vehicle during a collision avoidance manoeuvre K. Kraft, S. Larsson, and M. Lidberg Proceedings of The 48th Scandinavian Conference on Simulation and Modeling (SIMS 2007), Peter Bunus, Dag Fritzson and Claus Führer (eds), Linköping University Electronic Press, http://www.ep.liu.se/ecp/027/015/ Abstract The optimal manoeuvering of a vehicle during a collision avoidance manoeuvre is investigated. A basic model where the vehicle is modelled by a mass-particle and the mathematical formulation of the optimal manoeuvre are presented. The resulting two-point boundary problem is solved by an adaptive finite element method and the theory behind this method is described.