Abstract
This note points out some errors in the above paper that presents an indirect adaptive Taylor series control approach for the asymptotic tracking task-space control of electrically driven robots. In the proposed approach, Taylor series estimator is designed to approximate the lumped uncertainties (a real-valued function of several variables) in a decentralised form. However, in this note, it is proven that according to Stone–Weierstrass theorem, such an approximation is not technically true, and consequently, the obtained results in the above-mentioned paper are not correct.
Disclosure statement
No potential conflict of interest was reported by the authors.