Dynamic Value functions and optimal control in the presence of input saturation

Mario Sassano, Thomas Ernst Passenbrunner, A. Astolfi

Research output: Chapter in Book/Report/Conference proceedingConference proceedingspeer-review

Abstract

The optimal control of nonlinear input-affine systems is tackled in the presence of input saturation. The problem is formulated within the framework of the Dynamic Programming approach, which hinges upon the solution of the Hamilton-Jacobi-Bellman partial differential equation. The notion of Dynamic Value function is extended herein to inputaffine nonlinear systems in the presence of input saturation, providing, in general, a time-varying dynamic control law that approximates the solution of the optimal control problem with bounded input. Then, the second part of the paper discusses a systematic procedure to construct a Dynamic Value function without requiring the solution of any partial differential equation or inequality. This construction relies upon the notion of algebraic solution of the Hamilton-Jacobi-Bellman partial differential equation.
Original languageEnglish
Title of host publicationProceedings of Mechatronics 2012
Number of pages6
Publication statusPublished - Sept 2012

Fields of science

  • 203 Mechanical Engineering
  • 202034 Control engineering
  • 202012 Electrical measurement technology
  • 206 Medical Engineering
  • 202027 Mechatronics
  • 202003 Automation
  • 203027 Internal combustion engines
  • 207109 Pollutant emission

JKU Focus areas

  • Mechatronics and Information Processing

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