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- W1970989845 abstract "The common view on feedforward control is that it needs an accurate model in order to accurately predict a future state of the system. However, in this paper we show that there are model inaccuracies that do not affect the final position of a motion, when using the right feedforward controller. Having an accurate final position is the main requirement in the task we consider: a pick-and-place task. We optimized the feedforward controllers such that the effect of model inaccuracies on the final position was minimized. The system we studied is a one DOF robotic arm in the horizontal plane, of which we show simulation and hardware results. The results show that the errors in the final position can be reduced to approximately zero for an inaccurate Coulomb, viscous or torque dependent friction. Furthermore, errors in the final position can be reduced, but not to zero, for an inaccurate inertia or motor constant. In conclusion, we show that for certain model inaccuracies, no feedback is required to eliminate the effect of an inaccurate model on the final position of a motion." @default.
- W1970989845 created "2016-06-24" @default.
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- W1970989845 date "2013-11-01" @default.
- W1970989845 modified "2023-09-26" @default.
- W1970989845 title "Optimization of feedforward controllers to minimize sensitivity to model inaccuracies" @default.
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- W1970989845 doi "https://doi.org/10.1109/iros.2013.6696838" @default.
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