2010 Volume 130 Issue 8 Pages 1015-1021
This paper proposes a novel task description for redundant systems as an extension of oblique coordinate control. Orthogonality of tasks are not necessary and interference between a task space and a null space is precisely described in off-diagonal parameters of “task mass matrix” in this method. Dynamics of the null space is also considered with its basic variables. In order to decouple the spaces, a null space regulator is proposed. Conventionally, this kind of decoupling is given by selecting a mass matrix as a weighting matrix of the pseudo inverse. On the other hand, arbitrary weighting matrices can be selected in our approach. Some comments for sub tasks are given. In a short word, “there is few need of sub tasks”. Validity of the proposed method is analyzed and is confirmed by experiments.
The transactions of the Institute of Electrical Engineers of Japan.C
The transactions of the Institute of Electrical Engineers of Japan.B
The transactions of the Institute of Electrical Engineers of Japan.A
The Journal of the Institute of Electrical Engineers of Japan