Comparison of Performance Effectiveness of Linear Control Algorithms Developed for a Simplified Ground Vehicle Suspension System

Report No. ARL-TR-5524
Authors: Ross Brown, Jason Pusey, Muthuvel Murugan, and Dy Le
Date/Pages: April 2011; 42 pages
Abstract: This report documents our evaluation of the effectiveness of active control algorithms in a simulation environment. Each control algorithm was applied to an identical model subjected to the same disturbance input and compared to a baseline passive suspension system and each other algorithm. The control algorithms considered include a Generalized Predictive Controller (GPC) with Implicit Disturbances, GPC with Explicit Disturbances, Linear Quadratic Controller (LQR) and LQR with Preview Control. The suspension model used was a two-degree-of-freedom (2 DOF) quarter car with two sets of vehicle parameters.
Distribution: Approved for public release
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Last Update / Reviewed: April 1, 2011