Minimalist Compliance Control

Fuente: arXiv
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Autores principales: Shi, Haochen, Hu, Songbo, Hou, Yifan, Wang, Weizhuo, Liu, Karen, Song, Shuran
Formato: Preprint
Publicado: 2026
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author Shi, Haochen
Hu, Songbo
Hou, Yifan
Wang, Weizhuo
Liu, Karen
Song, Shuran
author_facet Shi, Haochen
Hu, Songbo
Hou, Yifan
Wang, Weizhuo
Liu, Karen
Song, Shuran
contents Compliance control is essential for safe physical interaction, yet its adoption is limited by hardware requirements such as force torque sensors. While recent reinforcement learning approaches aim to bypass these constraints, they often suffer from sim-to-real gaps, lack safety guarantees, and add system complexity. We propose Minimalist Compliance Control, which enables compliant behavior using only motor current or voltage signals readily available in modern servos and quasi-direct-drive motors, without force sensors, current control, or learning. External wrenches are estimated from actuator signals and Jacobians and incorporated into a task-space admittance controller, preserving sufficient force measurement accuracy for stable and responsive compliance control. Our method is embodiment-agnostic and plug-and-play with diverse high-level planners. We validate our approach on a robot arm, a dexterous hand, and two humanoid robots across multiple contact-rich tasks, using vision-language models, imitation learning, and model-based planning. The results demonstrate robust, safe, and compliant interaction across embodiments and planning paradigms.
format Preprint
id arxiv_https___arxiv_org_abs_2603_00913
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Minimalist Compliance Control
Shi, Haochen
Hu, Songbo
Hou, Yifan
Wang, Weizhuo
Liu, Karen
Song, Shuran
Robotics
Compliance control is essential for safe physical interaction, yet its adoption is limited by hardware requirements such as force torque sensors. While recent reinforcement learning approaches aim to bypass these constraints, they often suffer from sim-to-real gaps, lack safety guarantees, and add system complexity. We propose Minimalist Compliance Control, which enables compliant behavior using only motor current or voltage signals readily available in modern servos and quasi-direct-drive motors, without force sensors, current control, or learning. External wrenches are estimated from actuator signals and Jacobians and incorporated into a task-space admittance controller, preserving sufficient force measurement accuracy for stable and responsive compliance control. Our method is embodiment-agnostic and plug-and-play with diverse high-level planners. We validate our approach on a robot arm, a dexterous hand, and two humanoid robots across multiple contact-rich tasks, using vision-language models, imitation learning, and model-based planning. The results demonstrate robust, safe, and compliant interaction across embodiments and planning paradigms.
title Minimalist Compliance Control
topic Robotics
url https://arxiv.org/abs/2603.00913