Journal of Auto-vehicle Safety Association (자동차안전학회지)

Korean Auto-vehicle Safety Association (한국자동차안전학회)
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Fault Tolerant Control Strategy for Four Wheel Steer-by-Wire Systems

4륜 조향을 이용한 Steer-by-Wire 시스템의 고장 허용 제어 전략

  • 노성훈 (군산대학교 기계공학과) ;
  • 권백순 (군산대학교 기계공학부)
  • Received : 2022.04.13
  • Accepted : 2023.06.20
  • Published : 2023.06.30
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Abstract

This paper presents a fault tolerant control strategy for Steer-by-Wire (SbW) systems. Among many problems to be solved before commercialization of SbW systems, maintaining reliability and fault tolerance in such systems are the most pressing issues. In most previous studies, dual steering motors are used to achieve actuation redundancy. However, relatively few studies have been conducted to introduce fault tolerant control strategies using rear wheel steering system. In this work, an actuator fault in front wheel steering is compensated by active rear wheel steering. The proposed fault tolerant control algorithm consists of disturbance observer and sliding mode control. The fault tolerant control performance of the proposed approach is validated via computer simulation studies with Carsim vehicle dynamics software and MATLAB/Simulink.

Keywords

Acknowledgement

본 연구는 2022년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원(P0012769, 2022년 산업혁신인재성장 지원산업)과 2022년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원(NRF-2022R1G1A1008259)과 2021학년도 군산대학교 신임교수 연구비 지원을 받아 수행되었음.

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