Ctrl-F: Force as an Interface for Humanoid Loco-Manipulation
Ctrl-F: Force as an Interface for Humanoid Loco-Manipulation
This research presents Ctrl-F, a hierarchical motion-force framework that augments humanoid motion tracking with explicit 3-D force commands at contact points like hands and feet. The system includes a unified motion-force controller and a high-level force planner that issues online force commands based on object state and proprioception. Demonstrated in both simulation and on hardware, Ctrl-F successfully performs loco-manipulation tasks requiring large, sustained interaction forces, such as hand-based dragging, pushing, lifting, and foot-based kicking. It adapts online to changing loads, successfully manipulating boxes weighing up to 20kg in pushing and kicking tasks where force-blind baselines fail.
The paper introduces a hierarchical motion-force framework that augments standard motion tracking with explicit 3-D force commands at contact points, enabling hardware demonstrations of dragging, pushing, lifting, and kicking objects up to 20kg where force-blind baselines fail.
Source: arXiv Robotics — research abstracts · Read original article ↗
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der-explored. We argue that force is a natural command channel between motion imitation and object interaction, one that specifies not just where to make contact but how hard. We present Ctrl-F, a hierarchical motion-force framework that augments motion tracking with an explicit force command, a 3-D force at each designated contact body such as a hand or a foot. The hierarchical framework comprises: (1) A unified mot
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Ctrl-F: Force as an Interface for Humanoid Loco-Manipulation
Open source S1
arXiv:2611.05507v1 Announce Type: new Abstract: Humanoid motion tracking has scaled to general policies that reproduce diverse human motion, but the resulting behavior is in free-space: the tracker knows where the body should be, not how it should interact with the environment. Other work makes the object part of the objective, yet abstracts that interaction to contact or geometry, which leaves the demanding cases un
Open source S2
der-explored. We argue that force is a natural command channel between motion imitation and object interaction, one that specifies not just where to make contact but how hard. We present Ctrl-F, a hierarchical motion-force framework that augments motion tracking with an explicit force command, a 3-D force at each designated contact body such as a hand or a foot. The hierarchical framework comprises: (1) A unified mot
Open source S3
ion-force controller tracks the reference motion while applying the commanded force to the world. (2) A high-level force planner that issues a force command online based on object state and proprioception observations. In simulation and on hardware, Ctrl-F completes loco-manipulation that demands large, sustained interaction force and adjusts its command online as the load changes, both out of reach of a force-blind
Open source S4
tracker. On hardware, Ctrl-F demonstrates hand-based dragging, pushing, and lifting, as well as foot-based kicking, successfully manipulating boxes weighing up to 20kg in pushing and kicking tasks where the force-blind baseline fails, while adapting online to additional loads introduced mid-task.
Open source S5
Source：arXiv Robotics — research abstracts · arxiv.org