DELAYLESS ACCELERATION MEASUREMENT METHOD FOR ELEVATOR CONTROL

Accurate sensing of acceleration could provide improved performance fo r elevator control. Acceleration control is, however, seldom implement ed, due to the unsatisfactory results of most acceleration measurement methods. We Propose a polynomial predictive differentiator which dela ylessly differentiates the available velocity signal. Polynomial predi ction is justified, because the acceleration curve can be modeled accu rately by a piecewise polynomial.