Hybrid sliding mode position control for a piston air motor ball screw table

► We develop a model of piston air motor system and analyze the behaviors of a ball screw table. ► The contribution is to combine backstepping design and fuzzy logics for accurate performance. ► The fuzzy logics were developed to modify one of the backstepping controller variables. ► The hybrid controller would keep a better transient response and decrease chattering. ► The experimental results validate the proposed position control strategy.