Title: Simultaneous optimisation of fuel consumption and emissions for a parallel hybrid electric SUV using fuzzy logic control

Authors: Jian Chen, Yan Li, Jian Wang

Addresses: School of Manufacturing Science and Engineering, Sichuan University, Chengdu, 610065 PR China. ' School of Manufacturing Science and Engineering, Sichuan University, Chengdu, 610065 PR China. ' School of Mechanical and Aerospace Engineering, Queen's University Belfast, Stranmillis Road, Belfast BT9 5AH, Northern Ireland, UK

Abstract: A Fuzzy Logic Control Strategy (FLCS) for a parallel hybrid electric SUV is described. In this control strategy, an optimal torque provided by the Internal Combustion Engine (ICE) is first evaluated based on the ICE characteristics. Then, with the consideration of control-state constraints and the characteristics of other power components, the acquired optimal torque is modified by a fuzzy logic controller. Consequently, the actual required output torques of the ICE are figured out. The proposed control strategy was modelled in Simulink and incorporated into the vehicle simulation software Advisor. The simulation results demonstrate that the proposed control strategy is more effective overall than the conventional.

Keywords: hybrid electric vehicles; HEVs; fuzzy logic; fuzzy control; mathematical modelling; vehicle simulation; fuel consumption; emissions; hybrid electric SUV; optimal torque; control strategy; vehicle design.

DOI: 10.1504/IJVD.2008.017183

International Journal of Vehicle Design, 2008 Vol.46 No.2, pp.204 - 218

Published online: 17 Feb 2008 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article