Optimal Design of Fault-Tolerant Controller for an Electric Power Steering System with Sensor Failures Using Genetic Algorithm

This paper focuses on the fault-tolerant control (FTC) problem for an electric power steering (EPS) system subjected to stochastic sensor failures, and a novel fault-tolerant controller is proposed based on the genetic algorithm (GA). A mathematical model of the EPS system with sensor failures is fi...

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Main Authors: Xue Liu, Hui Pang, Yuting Shang, Wen Wu
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2018/1801589
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author Xue Liu
Hui Pang
Yuting Shang
Wen Wu
author_facet Xue Liu
Hui Pang
Yuting Shang
Wen Wu
author_sort Xue Liu
collection DOAJ
description This paper focuses on the fault-tolerant control (FTC) problem for an electric power steering (EPS) system subjected to stochastic sensor failures, and a novel fault-tolerant controller is proposed based on the genetic algorithm (GA). A mathematical model of the EPS system with sensor failures is first established, and the state feedback control law is solved by using linear quadratic regulator techniques to stabilize the closed-loop control system. Then, the dynamic response errors of the EPS system with and without sensor faults are chosen as the optimization objective function. Furthermore, the appropriate weighting matrices are evaluated to obtain the optimal fault control law by using GA. Finally, simulation results are presented to illustrate the effectiveness of the proposed control strategy.
format Article
id doaj-art-81e7801d18dc444c9f00cb20d7c35ae6
institution Kabale University
issn 1070-9622
1875-9203
language English
publishDate 2018-01-01
publisher Wiley
record_format Article
series Shock and Vibration
spelling doaj-art-81e7801d18dc444c9f00cb20d7c35ae62025-02-03T01:21:31ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/18015891801589Optimal Design of Fault-Tolerant Controller for an Electric Power Steering System with Sensor Failures Using Genetic AlgorithmXue Liu0Hui Pang1Yuting Shang2Wen Wu3Key Laboratory of Road Construction Technology and Equipment, Chang’an University, Xi’an 710064, ChinaKey Laboratory of Road Construction Technology and Equipment, Chang’an University, Xi’an 710064, ChinaKey Laboratory of Road Construction Technology and Equipment, Chang’an University, Xi’an 710064, ChinaKey Laboratory of Road Construction Technology and Equipment, Chang’an University, Xi’an 710064, ChinaThis paper focuses on the fault-tolerant control (FTC) problem for an electric power steering (EPS) system subjected to stochastic sensor failures, and a novel fault-tolerant controller is proposed based on the genetic algorithm (GA). A mathematical model of the EPS system with sensor failures is first established, and the state feedback control law is solved by using linear quadratic regulator techniques to stabilize the closed-loop control system. Then, the dynamic response errors of the EPS system with and without sensor faults are chosen as the optimization objective function. Furthermore, the appropriate weighting matrices are evaluated to obtain the optimal fault control law by using GA. Finally, simulation results are presented to illustrate the effectiveness of the proposed control strategy.http://dx.doi.org/10.1155/2018/1801589
spellingShingle Xue Liu
Hui Pang
Yuting Shang
Wen Wu
Optimal Design of Fault-Tolerant Controller for an Electric Power Steering System with Sensor Failures Using Genetic Algorithm
Shock and Vibration
title Optimal Design of Fault-Tolerant Controller for an Electric Power Steering System with Sensor Failures Using Genetic Algorithm
title_full Optimal Design of Fault-Tolerant Controller for an Electric Power Steering System with Sensor Failures Using Genetic Algorithm
title_fullStr Optimal Design of Fault-Tolerant Controller for an Electric Power Steering System with Sensor Failures Using Genetic Algorithm
title_full_unstemmed Optimal Design of Fault-Tolerant Controller for an Electric Power Steering System with Sensor Failures Using Genetic Algorithm
title_short Optimal Design of Fault-Tolerant Controller for an Electric Power Steering System with Sensor Failures Using Genetic Algorithm
title_sort optimal design of fault tolerant controller for an electric power steering system with sensor failures using genetic algorithm
url http://dx.doi.org/10.1155/2018/1801589
work_keys_str_mv AT xueliu optimaldesignoffaulttolerantcontrollerforanelectricpowersteeringsystemwithsensorfailuresusinggeneticalgorithm
AT huipang optimaldesignoffaulttolerantcontrollerforanelectricpowersteeringsystemwithsensorfailuresusinggeneticalgorithm
AT yutingshang optimaldesignoffaulttolerantcontrollerforanelectricpowersteeringsystemwithsensorfailuresusinggeneticalgorithm
AT wenwu optimaldesignoffaulttolerantcontrollerforanelectricpowersteeringsystemwithsensorfailuresusinggeneticalgorithm