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Deep Learning for Model-Free Prediction of Thermal States of Robot Joint Motors

Published: September 16, 2025 | arXiv ID: 2509.12739v1

By: Trung Kien La, Eric Guiffo Kaigom

Potential Business Impact:

Predicts robot arm motor heat to prevent overheating.

Business Areas:
Robotics Hardware, Science and Engineering, Software

In this work, deep neural networks made up of multiple hidden Long Short-Term Memory (LSTM) and Feedforward layers are trained to predict the thermal behavior of the joint motors of robot manipulators. A model-free and scalable approach is adopted. It accommodates complexity and uncertainty challenges stemming from the derivation, identification, and validation of a large number of parameters of an approximation model that is hardly available. To this end, sensed joint torques are collected and processed to foresee the thermal behavior of joint motors. Promising prediction results of the machine learning based capture of the temperature dynamics of joint motors of a redundant robot with seven joints are presented.

Page Count
6 pages

Category
Computer Science:
Robotics