Design of a power-split hybrid electric vehicle control system utilizing a rule-based controller and an equivalent consumption minimization strategy. (May 2014)

• Record Type: Journal Article
• Authors: Škugor, Branimir; Deur, Joško; Cipek, Mihael; Pavković, Danijel
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 228:Number 6(2014:Jun.)
• Page Start: 631
• Page End: 648
• Publication Date: 2014-05
• Subjects: Vehicle simulation -- vehicle modelling -- fuel efficiency -- fuel economy -- hybrid vehicles -- vehicle control systems -- electric vehicles; Mechanical engineering -- Congresses; Transportation engineering -- Congresses; 629.2
• DOI: 10.1177/0954407013517220
• Languages: English
• ISSNs: 0954-4070

Abstract

The paper proposes a power-split hybrid electric vehicle control strategy that combines a rule-based controller, including a state-of-charge controller and engine start–stop logic, with a precisely formulated equivalent consumption minimization strategy. A one-dimensional directional search-based instantaneous equivalent consumption minimization strategy optimization and a two-dimensional directional search-based instantaneous equivalent consumption minimization strategy optimization are used to find optimal powertrain points in high-efficiency engine map regions that are previously determined by an offline optimization approach. The simulation results confirm that the rule-based controller performance can be significantly improved when extended with the proposed equivalent consumption minimization strategy formulation, without requiring an adaptive empirical penalty factor to satisfy the state-of-charge sustainability condition. The proposed rule-based + equivalent consumption minimization strategy control strategies were verified against a dynamic-programming-based optimization benchmark for different certification driving cycles.