Integrating Diffusion-based Multi-task Learning with Online Reinforcement Learning for Robust Quadruped Robot Control

Fuente: arXiv
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Main Authors: Qin, Xinyao, Ma, Xiaoteng, Qi, Yang, Liu, Qihan, Xue, Chuanyi, Gui, Ning, Dong, Qinyu, Yang, Jun, Liang, Bin
Format: Preprint
Published: 2025
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author Qin, Xinyao
Ma, Xiaoteng
Qi, Yang
Liu, Qihan
Xue, Chuanyi
Gui, Ning
Dong, Qinyu
Yang, Jun
Liang, Bin
author_facet Qin, Xinyao
Ma, Xiaoteng
Qi, Yang
Liu, Qihan
Xue, Chuanyi
Gui, Ning
Dong, Qinyu
Yang, Jun
Liang, Bin
contents Recent research has highlighted the powerful capabilities of imitation learning in robotics. Leveraging generative models, particularly diffusion models, these approaches offer notable advantages such as strong multi-task generalization, effective language conditioning, and high sample efficiency. While their application has been successful in manipulation tasks, their use in legged locomotion remains relatively underexplored, mainly due to compounding errors that affect stability and difficulties in task transition under limited data. Online reinforcement learning (RL) has demonstrated promising results in legged robot control in the past years, providing valuable insights to address these challenges. In this work, we propose DMLoco, a diffusion-based framework for quadruped robots that integrates multi-task pretraining with online PPO finetuning to enable language-conditioned control and robust task transitions. Our approach first pretrains the policy on a diverse multi-task dataset using diffusion models, enabling language-guided execution of various skills. Then, it finetunes the policy in simulation to ensure robustness and stable task transition during real-world deployment. By utilizing Denoising Diffusion Implicit Models (DDIM) for efficient sampling and TensorRT for optimized deployment, our policy runs onboard at 50Hz, offering a scalable and efficient solution for adaptive, language-guided locomotion on resource-constrained robotic platforms.
format Preprint
id arxiv_https___arxiv_org_abs_2507_05674
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Integrating Diffusion-based Multi-task Learning with Online Reinforcement Learning for Robust Quadruped Robot Control
Qin, Xinyao
Ma, Xiaoteng
Qi, Yang
Liu, Qihan
Xue, Chuanyi
Gui, Ning
Dong, Qinyu
Yang, Jun
Liang, Bin
Robotics
Recent research has highlighted the powerful capabilities of imitation learning in robotics. Leveraging generative models, particularly diffusion models, these approaches offer notable advantages such as strong multi-task generalization, effective language conditioning, and high sample efficiency. While their application has been successful in manipulation tasks, their use in legged locomotion remains relatively underexplored, mainly due to compounding errors that affect stability and difficulties in task transition under limited data. Online reinforcement learning (RL) has demonstrated promising results in legged robot control in the past years, providing valuable insights to address these challenges. In this work, we propose DMLoco, a diffusion-based framework for quadruped robots that integrates multi-task pretraining with online PPO finetuning to enable language-conditioned control and robust task transitions. Our approach first pretrains the policy on a diverse multi-task dataset using diffusion models, enabling language-guided execution of various skills. Then, it finetunes the policy in simulation to ensure robustness and stable task transition during real-world deployment. By utilizing Denoising Diffusion Implicit Models (DDIM) for efficient sampling and TensorRT for optimized deployment, our policy runs onboard at 50Hz, offering a scalable and efficient solution for adaptive, language-guided locomotion on resource-constrained robotic platforms.
title Integrating Diffusion-based Multi-task Learning with Online Reinforcement Learning for Robust Quadruped Robot Control
topic Robotics
url https://arxiv.org/abs/2507.05674