Title :
A LMI-based supervisory robust control for hybrid vehicles
Author :
Pisu, Pierluigi ; Silani, Enrico ; Rizzoni, Giorgio ; Savaresi, Sergio M.
Author_Institution :
Center for Automotive Res. & Intelligent Transp., Ohio State Univ., Columbus, OH, USA
Abstract :
The aim of this paper is to propose a robust approach to the development of supervisory control strategies for hybrid-electric drivetrains. The objective is to determine an output feedback controller that minimize fuel consumption with respect to a family of possible torque/power input profiles, e.g. urban driving cycles. A quasi-static energy model for the hybrid vehicle, based on a Willans lines model of the IC engine and electric motor, is derived. Sufficient conditions for the existence of a robust controller satisfying stability, L2 gain attenuation between inputs and outputs of interest, and input/output bound constraints are derived by means of a set of linear matrix inequalities (LMIs).
Keywords :
electric motors; feedback; hybrid electric vehicles; internal combustion engines; linear matrix inequalities; robust control; IC engine; LMI-based supervisory robust control; Wilan lines model; electric motor; fuel consumption minimization; gain attenuation; hybrid vehicles; hybrid-electric drivetrains; input bound constraints; internal combustion engine; linear matrix inequalities; output bound constraints; output feedback controller; power input profiles; quasi-static energy model; torque input profiles; urban driving cycles; Engines; Fuels; Hybrid integrated circuits; Integrated circuit modeling; Output feedback; Robust control; Robust stability; Supervisory control; Torque control; Vehicles;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1242462
