Position Tracking Control Law for an Electro-Hydraulic Servo System Based on Backstepping and Extended Differentiator

This paper investigates the problem of position tracking control for an electro-hydraulic servo system with parameter uncertainty. Superior to some existing results based on parameter estimation or fuzzy modeling, our proposed control scheme can guarantee the bounded tracking performance without parameter identification and model approximation. This is accomplished by using a novel differentiator-based backstepping control scheme, in which...