A clipped-optimal control algorithm for semi-active vehicle suspensions: Theory and experimental evaluation. (March 2015)

• Record Type: Journal Article
• Authors: Brezas, Panos; Smith, Malcolm C.; Hoult, Will
• Is Part Of: Automatica. Volume 53(2015)
• Page Start: 188
• Page End: 194
• Publication Date: 2015-03
• Subjects: Optimal control -- Semi-active suspension -- Observer design -- State-space methods; Automatic control -- Periodicals; Automation -- Periodicals; 629.805
• DOI: 10.1016/j.automatica.2014.12.026
• Languages: English
• ISSNs: 0005-1098

Abstract

Abstract: This paper addresses the problem of optimal control for semi-active vehicle suspensions. A specific goal is to develop an algorithm which is capable of optimising ride and handling behaviour simultaneously in an experimental situation. A time-domain optimal control approach is adopted in which ride and handling are modelled as exogenous disturbances acting on the vehicle: road disturbances (modelled stochastically), and driver inputs (treated as deterministic quasi-static disturbances). A control algorithm is derived from a solution of the stochastic Hamilton–Jacobi–Bellman equation for the finite horizon case. The advantages of the approach are demonstrated experimentally on a test vehicle performing a steering manoeuvre on a bumpy roundabout.