Experimental Comparison of Trajectory Trackers for a Car with Trailers

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Francesco Bullo and Richard M. Murray
1996 IFAC World Congress

In this paper various design techniques are applied to the trajectory tracking problem for a mobile robot with trailers. Using simulations and experiments, we evaluate linear and nonlinear designs on the basis of implementation issues, stability and performance. After a careful design of their gains, the various feedback controllers have very close performance measures. In both the simulations and the experiments, all the controllers show a strong dependence on the knowledge of the reference trajectory. The flatness of the system is exploited in precomputing this quantity.