A Semi-smooth Newton Method for the Constrained Optimal Control of Continuous-Time Linear Systems

Fuente: arXiv
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Main Authors: Jones, Simon J., Liao-McPherson, Dominic, Nicotra, Marco M.
Format: Preprint
Published: 2026
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author Jones, Simon J.
Liao-McPherson, Dominic
Nicotra, Marco M.
author_facet Jones, Simon J.
Liao-McPherson, Dominic
Nicotra, Marco M.
contents This paper details a novel indirect method for solving constrained optimal control problems (OCPs) directly in continuous-time function space. The KKT conditions are embedded in a non-smooth complementarity function, which enables their reformulation as a rootfinding problem in Banach space. This problem is then solved using a non-smooth Newton method. Finally, the paper shows that the Newton update can be obtained by solving a modified differential Riccati equation, where the cost terms are reweighted at every iteration based on the constraint multipliers. Numerical simulations show the effectiveness of the method, which converges superlinearly up to the tolerance of the ODE solver.
format Preprint
id arxiv_https___arxiv_org_abs_2605_06991
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle A Semi-smooth Newton Method for the Constrained Optimal Control of Continuous-Time Linear Systems
Jones, Simon J.
Liao-McPherson, Dominic
Nicotra, Marco M.
Optimization and Control
Systems and Control
This paper details a novel indirect method for solving constrained optimal control problems (OCPs) directly in continuous-time function space. The KKT conditions are embedded in a non-smooth complementarity function, which enables their reformulation as a rootfinding problem in Banach space. This problem is then solved using a non-smooth Newton method. Finally, the paper shows that the Newton update can be obtained by solving a modified differential Riccati equation, where the cost terms are reweighted at every iteration based on the constraint multipliers. Numerical simulations show the effectiveness of the method, which converges superlinearly up to the tolerance of the ODE solver.
title A Semi-smooth Newton Method for the Constrained Optimal Control of Continuous-Time Linear Systems
topic Optimization and Control
Systems and Control
url https://arxiv.org/abs/2605.06991