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논문 기본 정보

자료유형
학술저널
저자정보
김형규 (전북대학교) 이명규 (한국생산기술연구원) 김종탁 (한국생산기술연구원) 김원균 (한국생산기술연구원)
저널정보
Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Vol.41 No.6
발행연도
2024.6
수록면
435 - 449 (15page)
DOI
10.7736/JKSPE.024.007

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초록· 키워드

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This study proposes a path-tracking algorithm based on feed-forward (preview distance control) and feedback (LQR, linear quadratic regulator) controllers to reduce heading angle errors and lateral distance errors between a predefined path and an autonomous vehicle. The main objective of path-tracking is to generate control commands to follow a predefined path. The feed-forward control is applied to solve heading angle errors and lateral distance errors in the trajectory caused by curvatures of the road by controlling the steering angle of the vehicle. An LQR was applied to decrease the errors caused by environmental and external disturbances. The proposed algorithm was verified by simulating the driving environment of an autonomous vehicle using a CARLA simulator. Safety and comfort were demonstrated using the test vehicle. The study also demonstrated that the tracking performance of the proposed algorithm exceeded that of other path-tracking algorithms, such as Pure Pursuit and the Stanley Method.

목차

1. Introduction
2. State Space Model of Vehicle and Validation
3. Lateral Control System
4. Simulation
5. Conclusion
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