Authors
Ajinkya Joglekar, Chinmay Samak, Tanmay Samak, Krishna Chaitanya Kosaraju, Jonathon Smereka, Mark Brudnak, David Gorsich, Venkat Krovi, Umesh Vaidya
Publication date
2023/1/1
Journal
IFAC-PapersOnLine
Volume
56
Issue
3
Pages
619-624
Publisher
Elsevier
Description
The path-tracking control performance of an autonomous vehicle (AV) is crucially dependent upon modeling choices and subsequent system-identification updates. Traditionally, automotive engineering has built upon increasing fidelity of white- and gray-box models coupled with system identification. While these models offer explainability, they suffer from modeling inaccuracies, non-linearities, and parameter variation. On the other end, end-to-end black-box methods like behavior cloning and reinforcement learning provide increased adaptability but at the expense of explainability, generalizability, and the sim2real gap. In this regard, hybrid data-driven techniques like Koopman Extended Dynamic Mode Decomposition (KEDMD) can achieve linear embedding of non-linear dynamics through a selection of “lifting functions”. However, the success of this method is primarily predicated on the choice of lifting function …
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