[Submitted on 22 Sep 2026]
Title:MultiPush: Learning to Rearrange with Teams of Car-Like Pushers
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Abstract:We focus on the problem of rearranging multiple objects within a constrained workspace via pushing using a team of car-like robots. While the use of multiple robots offers the potential for more efficient execution, the need for conflict resolution and the kinematic constraints arising from physics, robot design, and the workspace boundary make this problem especially challenging. Our key insight is that by exploiting the structure introduced by the car-like kinematics of the domain, we could relax the problem into an ordered assignment of Dubins curves to robots. To this end, we introduce MultiPush, a reinforcement-learning based framework that jointly determines an efficient schedule of pushing tasks and their allocation to available robots by leveraging a constraint-aware traversability graph. Across extensive simulated trials with up to 14 objects and teams of two to four robots, MultiPush reduces the makespan by up to 16% compared to the baselines while requiring up to 2.9 times faster planning time. We demonstrate MultiPush on a real-world scenario involving the rearrangement of 12 objects by two and three robots (1/10-scale racecars) in a constrained space.
Subjects:
Robotics (cs.RO)
Cite as: arXiv:2609.27005 [cs.RO]
(or arXiv:2609.27005v1 [cs.RO] for this version)
https://doi.org/10.48550/arXiv.2609.27005
arXiv-issued DOI via DataCite (pending registration)
Submission history
From: Christoforos Mavrogiannis [view email] [v1] Tue, 22 Sep 2026 19:39:44 UTC (4,304 KB)
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