Innovative Gain Reconfiguration for Active Fault-Tolerant Flight Control: Balance of Stability and Agility
<|reference_start|>Innovative Gain Reconfiguration for Active Fault-Tolerant Flight Control: Balance of Stability and Agility: In this study, a distinct reconfigurable fault-tolerant flight control strategy is addressed for mitigating one of the persistent safety-critical issue, i.e. loss of control triggered by actuator faults. The attainable acceleration set notion is taken a step further towards incremental attainable acceleration set through a slight modification that enables instantaneous controllability checks. The inner-loop gains are updated in case of a fault using incremental attainable acceleration set and a tuning function, which is in charge as a compensator of agility and robustness. Additionally, the outer-loop gains are also such reconfigured that holding the bandwidth ratio of the successive loops at a prudent level to ensure the closed-loop stability; for this reason, an analytical outer-loop gain update law is derived based on the inner-loop gains and bandwidth, actuator and command filter time constants. Subsequently, the proposed architecture is assessed under a severe fault scenario with a demanding maneuver mission. Noticeably, the proposed method fulfills the expectations of stability and agility sufficiently, and surpasses the fixed-gain approach.<|reference_end|>
@article{altunkaya2024innovative,
    title={Innovative Gain Reconfiguration for Active Fault-Tolerant Flight
  Control: Balance of Stability and Agility},
    author={Ege C. Altunkaya, Akin Catak, Emre Koyuncu, Ibrahim Ozkol},
    journal={arXiv preprint arXiv:2406.01251},
    year={2024},
    archivePrefix={arXiv},
    eprint={2406.01251},
    primaryClass={eess.SY cs.SY}
}