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Edgar Granados

10 accepted papers

2025

Integrating Model-Based Control and RL for Sim2Real Transfer of Tight Insertion Policies

ICRA 2025

Object insertion under tight tolerances (<Imm) is an important but challenging assembly task as even small errors can result in undesirable contacts. Recent efforts focused on Reinforcement Learning (RL), which often depends on careful definition of dense reward functions. This work proposes an effe

Cited by 5SourceScholar
2025

Kinodynamic Trajectory Following with STELA: Simultaneous Trajectory Estimation & Local Adaptation

RSS 2025poster

State estimation and control are often addressed separately, which can lead to unsafe execution due to sensing noise, execution errors and discrepancies between the planning model and reality. Simultaneous control and trajectory estimation using probabilistic graphical models has been proposed as a…

Cited by 0PDFScholar
2024

MORALS: Analysis of High-Dimensional Robot Controllers via Topological Tools in a Latent Space

ICRA 2024poster

Estimating the region of attraction (RoA) for a robot controller is essential for safe application and controller composition. Many existing methods require a closed-form expression that limit applicability to data-driven controllers. Methods that operate only over trajectory rollouts tend to be dat…

Cited by 3SourceScholar
2024

Roadmaps with Gaps over Controllers: Achieving Efficiency in Planning under Dynamics

IROS 2024poster

This paper aims to improve the computational efficiency of motion planning for mobile robots with non-trivial dynamics through the use of learned controllers. Offline, a system-specific controller is first trained in an empty environment. Then, for the target environment, the approach constructs a d…

Cited by 3SourcecodeScholar
2023

Data-Efficient Characterization of the Global Dynamics of Robot Controllers with Confidence Guarantees

ICRA 2023poster

This paper proposes an integration of surrogate modeling and topology to significantly reduce the amount of data required to describe the underlying global dynamics of robot controllers, including closed-box ones. A Gaussian Process (GP), trained with randomized short trajectories over the state-spa…

Cited by 4SourceScholar
2022

Model Identification and Control of a Low-cost Mobile Robot with Omnidirectional Wheels using Differentiable Physics

ICRA 2022poster

We present a new data-driven technique for pre-dicting the motion of a low-cost omnidirectional mobile robot under the influence of motor torques and friction forces. Our method utilizes a novel differentiable physics engine for analytically computing the gradient of the deviation between predicted…

Cited by 7SourceScholar
2022

Terrain-Aware Learned Controllers for Sampling-Based Kinodynamic Planning over Physically Simulated Terrains

IROS 2022poster

This paper explores learning an effective controller for improving the efficiency of kinodynamic planning for vehicular systems navigating uneven terrains. It describes the pipeline for training the corresponding controller and using it for motion planning purposes. The training process uses a soft…

Cited by 7SourceScholar
2021

Improving Kinodynamic Planners for Vehicular Navigation with Learned Goal-Reaching Controllers

IROS 2021poster

This paper aims to improve the path quality and computational efficiency of sampling-based kinodynamic planners for vehicular navigation. It proposes a learning framework for identifying promising controls during the expansion process of sampling-based planners. Given a dynamics model, a reinforceme…

Cited by 11SourceScholar
2020

Refined Analysis of Asymptotically-Optimal Kinodynamic Planning in the State-Cost Space

ICRA 2020poster

We present a novel analysis of AO-RRT: a tree-based planner for motion planning with kinodynamic constraints, originally described by Hauser and Zhou (AO-X, 2016). AO-RRT explores the state-cost space and has been shown to efficiently obtain high-quality solutions in practice without relying on the…

Cited by 34SourceScholar