Delta operator-based fault estimation and fault-tolerant model predictive control for steer-by-wire systems

Chao Huang, Fazel Naghdy, Haiping Du

Research output: Journal article publicationJournal articleAcademic researchpeer-review

35 Citations (Scopus)


A new fault estimation and fault-tolerant model predictive control (MPC) scheme for a Steer-by-Wire (SbW) system based on a delta operator approach is proposed. A fault detection observer in terms of the linear matrix inequalities is constructed by means of delta operator systems to estimate the fault in the SbW systems. An active fault-tolerant MPC based on a delta operator is designed to compensate for the effect of the actuator faults and to provide the vehicle road wheel steering functions without degradation of the tracking performance in the event of an actuator failure. The validation of the approach through computer simulation shows the effectiveness of the proposed scheme.

Original languageEnglish
Article number8011492
Pages (from-to)1810-1817
Number of pages8
JournalIEEE Transactions on Control Systems Technology
Issue number5
Publication statusPublished - Sep 2018
Externally publishedYes


  • Delta operator
  • fault detection observer
  • MPC controller
  • steer-by-wire systems (SbW)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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