A high-speed control algorithm using look-ahead strategy in CNC systems

Yunan Cao, Tianmiao Wang, Youdong Chen, Hongxing Wei, Zili Shao

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

13 Citations (Scopus)

Abstract

In this paper, by integrating the look-ahead strategy into S-shape acc/dec algorithm, we propose a novel velocity control algorithm to improve machining quality and processing efficiency in CNC systems. We first propose a path-segment linking model that can deal with both line-connect and arc-connect conditions. Based on this model, we develop a new S-shape acc/dec algorithm with look-ahead velocity control which can deal with the low velocity zone called "tail" in a deceleration zone. Practical algorithms are proposed to find optimal velocity adaptively based on the maximum number of look-ahead segments and geometric properties of the interpolation path. We implement our technique in both simulation environment and real CNC systems and conduct a series of experiments. The experimental results show that our technique can significantly improve machining efficiency and reduce acceleration sudden changes by taking advantage of both S-shape acc/dec algorithm and look-ahead algorithm.
Original languageEnglish
Title of host publication2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008
Pages372-377
Number of pages6
DOIs
Publication statusPublished - 23 Sep 2008
Event2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008 - Singapore, Singapore
Duration: 3 Jun 20085 Jun 2008

Conference

Conference2008 3rd IEEE Conference on Industrial Electronics and Applications, ICIEA 2008
Country/TerritorySingapore
CitySingapore
Period3/06/085/06/08

Keywords

  • Acceleration control
  • Angle measurement
  • Interpolation
  • Numerical control system

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

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