リアプノフベース経路追従制御器のためのベイズ最適化パラメータチューニングフレームワーク
Bayesian Optimization Parameter Tuning Framework for a Lyapunov Based Path Following Controller
閉ループ系をブラックボックスとみなし、ガウス過程サロゲートを用いたベイズ最適化で非線形経路追従制御器のゲインを実機上で効率的に調整する手法を提案し、三輪ロボットでの実験で有効性を示した。
詳しい要約
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著者: Zhewen Zheng, Wenjing Cao, Hongkang Yu, Mo Chen, Takashi Suzuki
分類: cs.RO, cs.SY, eess.SY
原文アブストラクト
Parameter tuning in real-world experiments is constrained by the limited evaluation budget available on hardware. The path-following controller studied in this paper reflects a typical situation in nonlinear geometric controller, where multiple gains influence the dynamics through coupled nonlinear terms. Such interdependence makes manual tuning inefficient and unlikely to yield satisfactory performance within a practical number of trials. To address this challenge, we propose a Bayesian optimization (BO) framework that treats the closed-loop system as a black box and selects controller gains using a Gaussian-process surrogate. BO offers model-free exploration, quantified uncertainty, and data-efficient search, making it well suited for tuning tasks where each evaluation is costly. The framework is implemented on Honda's AI-Formula three-wheeled robot and assessed through repeated full-lap experiments on a fixed test track. The results show that BO improves controller performance within 32 trials, including 15 warm-start initial evaluations, indicating that it can efficiently locate high-performing regions of the parameter space under real-world conditions. These findings demonstrate that BO provides a practical, reliable, and data-efficient tuning approach for nonlinear path-following controllers on real robotic platforms.
