深層Koopman MPCによるホイールローダのVサイクル自動化
Wheel-loader V-Cycle Automation with Deep Koopman MPC
ホイールローダの土砂運搬作業(Vサイクル)を自動化するため、幾何学的計画とデータ駆動型Koopmanモデル予測制御を組み合わせた階層フレームワークを提案し、高忠実度シミュレーションで有効性を示した。
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著者: Armin Abdolmohammadi, Navid Mojahed, Dinesh Kumar, Bahram Ravani, Shima Nazari
分類: cs.RO, eess.SY
原文アブストラクト
The repeated forward-reverse maneuvers performed by wheel loaders during earthmoving operations make them well suited for automation. However, the nonlinear dynamics of articulated vehicles and complex vehicle-terrain interactions limit the effectiveness of conventional model-based approaches. This paper presents a hierarchical framework that combines long-horizon geometric planning with data-driven predictive control for autonomous wheel-loader operation. A reduced-order articulated kinematic model is used to generate the maneuver geometry, where the forward and reverse trajectories are jointly optimized through a shared intermediate state. To capture the vehicle dynamics, two data-driven deep bilinear Koopman models are learned for the forward and reverse motions using data generated from high-fidelity simulations in Algoryx Dynamics. The learned Koopman representations are subsequently incorporated into a computationally efficient model predictive control (MPC) formulation for trajectory tracking. The resulting controller operates in real time within a 50-ms execution loop. High-fidelity simulation results demonstrate that the proposed end-to-end framework enables accurate and computationally efficient execution of wheel-loader V-cycle maneuvers, providing a promising approach toward autonomous operation of articulated heavy-duty machinery.