HyRRT-Connect: Bidirectional Motion Planning for Hybrid Dynamical Systems

Fuente: arXiv
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Main Authors: Wang, Nan, Sanfelice, Ricardo G.
Format: Preprint
Published: 2025
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author Wang, Nan
Sanfelice, Ricardo G.
author_facet Wang, Nan
Sanfelice, Ricardo G.
contents This paper proposes a bidirectional rapidly-exploring random trees (RRT) algorithm to solve the motion planning problem for hybrid systems. The proposed algorithm, called HyRRT-Connect, propagates in both forward and backward directions in hybrid time until an overlap between the forward and backward propagation results is detected. Then, HyRRT-Connect constructs a motion plan through the reversal and concatenation of functions defined on hybrid time domains, ensuring that the motion plan satisfies the given hybrid dynamics. To address the potential discontinuity along the flow caused by tolerating some distance between the forward and backward partial motion plans, we reconstruct the backward partial motion plan by a forward-in-hybrid-time simulation from the final state of the forward partial motion plan. effectively eliminating the discontinuity. The proposed algorithm is applied to an actuated bouncing ball system and a walking robot example to highlight its computational improvement.
format Preprint
id arxiv_https___arxiv_org_abs_2504_10699
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle HyRRT-Connect: Bidirectional Motion Planning for Hybrid Dynamical Systems
Wang, Nan
Sanfelice, Ricardo G.
Robotics
Artificial Intelligence
Systems and Control
This paper proposes a bidirectional rapidly-exploring random trees (RRT) algorithm to solve the motion planning problem for hybrid systems. The proposed algorithm, called HyRRT-Connect, propagates in both forward and backward directions in hybrid time until an overlap between the forward and backward propagation results is detected. Then, HyRRT-Connect constructs a motion plan through the reversal and concatenation of functions defined on hybrid time domains, ensuring that the motion plan satisfies the given hybrid dynamics. To address the potential discontinuity along the flow caused by tolerating some distance between the forward and backward partial motion plans, we reconstruct the backward partial motion plan by a forward-in-hybrid-time simulation from the final state of the forward partial motion plan. effectively eliminating the discontinuity. The proposed algorithm is applied to an actuated bouncing ball system and a walking robot example to highlight its computational improvement.
title HyRRT-Connect: Bidirectional Motion Planning for Hybrid Dynamical Systems
topic Robotics
Artificial Intelligence
Systems and Control
url https://arxiv.org/abs/2504.10699