Reinforcement Learning-based Safe Optimal Control Of Nonlinear Discrete-Time Affine Systems Under Adversarial Inputs

Abstract

This paper presents a resilient reinforcement learning (RL)-based safety-aware optimal adaptive tracking framework for nonlinear discrete-time affine systems under state constraints and adversarial sensor, actuator, and reward attacks. Sensor and actuator attacks are modeled through networked communication, while reward attacks affect the reward function or temporal difference error (TDE). A multilayer neural network (MNN)-based actor-critic architecture estimates the cost and optimal policy, using a clipped TDE and an adaptive Gaussian-based forgetting factor to balance resilience and optimality. Sensor and actuator attack resilience is achieved via a fault-aware cost-to-go function and a control barrier function (CBF) constraint embedded in a quadratic program (QP). The effectiveness is validated on a rear-wheel-drive vehicle.

Department(s)

Electrical and Computer Engineering

Second Department

Computer Science

Comments

Office of Naval Research, Grant N00014-24-1-2338

Keywords and Phrases

Approximate dynamic programming; CBF; Quadratic programming; RL

International Standard Book Number (ISBN)

979-8-3315-9381-0; 979-8-3315-9382-7

International Standard Serial Number (ISSN)

0743-1619

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2026 Institute of Electrical and Electronics Engineers, All rights reserved.

Publication Date

01 Jan 2026

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