A novel hybrid self-sensing method for force estimation in a piezo-stepper actuator

Sanidhya Naikwad, Ruben Vandervelden, Hassan Hossein Nia Kani

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

This paper presents a novel application of a hybrid observer based self-sensing in a piezo stepperactuator. Most existing observer based methods for force estimation are based on the assumption of smooth external loading conditions and do not take into accountthe interactions due to contact. While stepping athigh frequencies, a proper interaction between the driving rod and piezolegs of the piezo-stepper is not achieved causing unwanted disturbances. In this paper, a hybrid method incorporating selfsensing contact detection and observer based self-sensing is used to estimate the force acting on the piezolegs. The designed hybrid observer is able to identify contact and estimate forces with a good accuracy for the given driving signal.

Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on Control, Mechatronics and Automation, ICCMA 2016
Place of PublicationNew York, NY, USA
PublisherAssociation for Computing Machinery (ACM)
Pages162-167
ISBN (Electronic)9781450352130
DOIs
Publication statusPublished - 2016
Event4th International Conference on Control, Mechatronics and Automation, ICCMA 2016 - Barcelona, Spain
Duration: 7 Dec 201611 Dec 2016

Publication series

NameACM International Conference Proceeding Series
Number01348

Conference

Conference4th International Conference on Control, Mechatronics and Automation, ICCMA 2016
CountrySpain
CityBarcelona
Period7/12/1611/12/16

Keywords

  • Hybrid Self-Sensing
  • Piezo-Stepper
  • Self-Sensing

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