自律走行レースのためのオンライン滑り検出と摩擦係数推定
Online Slip Detection and Friction Coefficient Estimation for Autonomous Racing
IMUとLiDAR、制御入力のみを用いて、車両やタイヤのモデルなしでリアルタイムに滑りを検出し、路面摩擦係数を推定する軽量手法を提案し、1:10スケールの自律走行車で有効性を示した。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
4. どうやって有効だと検証した?
5. 議論はある?
6. 次に読むべき論文は?
※ AIが要旨から生成した要約です。正確性は原文をご確認ください。
著者: Christopher Oeltjen, Carson Sobolewski, Saleh Faghfoorian, Lorant Domokos, Giancarlo Vidal, Sriram Yerramsetty, Ivan Ruchkin
分類: cs.RO, cs.SY, eess.SY
原文アブストラクト
Accurate knowledge of the tire-road friction coefficient (TRFC) is essential for vehicle safety, stability, and performance, especially in autonomous racing, where vehicles often operate at the friction limit. However, TRFC cannot be directly measured with standard sensors, and existing estimation methods either depend on vehicle or tire models with uncertain parameters or require large training datasets. In this paper, we present a lightweight approach for online slip detection and TRFC estimation. Our approach relies solely on IMU and LiDAR measurements and the control actions, without special dynamical or tire models, parameter identification, or training data. Slip events are detected in real time by comparing commanded and measured motions, and the TRFC is then estimated directly from observed accelerations under no-slip conditions. Experiments with a 1:10-scale autonomous racing car across different friction levels demonstrate that the proposed approach achieves accurate and consistent slip detections and friction coefficients, with results closely matching ground-truth measurements. These findings highlight the potential of our simple, deployable, and computationally efficient approach for real-time slip monitoring and friction coefficient estimation in autonomous driving.
