Open AccessRobust static output‐feedback controller design against sensor failure for vehicle dynamics
Author(s) -
Aouaouda Sabrina,
Chadli Mohammed,
Karimi HamidReza
Publication year - 2014
Publication title -
iet control theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.059
H-Index - 108
eISSN - 1751-8652
pISSN - 1751-8644
DOI - 10.1049/iet-cta.2013.0709
Subject(s) - control theory (sociology) , controller (irrigation) , fault (geology) , control engineering , engineering , robustness (evolution) , observer (physics) , linear matrix inequality , fault tolerance , robust control , vehicle dynamics , computer science , control system , control (management) , mathematics , artificial intelligence , biology , agronomy , automotive engineering , electrical engineering , chemistry , mathematical optimization , biochemistry , quantum mechanics , reliability engineering , physics , seismology , gene , geology
This study deals with the design of a robust fault estimation and fault‐tolerant control for vehicle lateral dynamics subject to external disturbance and unknown sensor faults. Firstly, a descriptor state and fault observer is designed to achieve the system state and sensor fault estimates simultaneously. Secondly, based on the information of on‐line fault estimates, a robust fault‐tolerant controller based on static output‐feedback controller (SOFC) design approach is developed. To provide linear matrix inequalities of less conservatism, the results are conducted in the non‐quadratic framework dealing with unmeasurable premise variables case. Simulation results show the effectiveness of the proposed control approach when the vehicle road adhesion conditions change and the sideslip angle is unavailable for measurement.