Model-free control for machine tools

TL;DR

This paper introduces a novel, easy-to-tune model-free control method for machine tools that enhances trajectory tracking accuracy and mitigates wear and aging effects, outperforming traditional cascade P-PI control systems.

Contribution

The paper presents a new model-free control approach specifically designed for machine tools, improving accuracy and robustness without complex tuning.

Findings

Achieves high-precision trajectory tracking

Effectively mitigates wear and aging effects

Outperforms traditional cascade P-PI control systems

Abstract

Cascade P-PI control systems are the most widespread commercial solutions for machine tool positioning systems. However, friction, backlash and wearing effects significantly degrade their closed-loop behaviour. This works proposes a novel easy-to-tune control approach that achieves high accuracy trajectory tracking in a wide operation domain, thus being able to mitigate wear and aging effects.