Energy Management Control Strategy for Saving Trip Costs of Fuel Cell/Battery Electric Vehicles

Juhui Gim, Minsu Kim and Changsun Ahn
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Juhui Gim: School of Electrical, Electronic and Control Engineering, Changwon National University, Changwon 51140, Korea
Minsu Kim: School of Mechanical Engineering, Pusan National University, Busan 46241, Korea
Changsun Ahn: School of Mechanical Engineering, Pusan National University, Busan 46241, Korea

Energies, 2022, vol. 15, issue 6, 1-15

Abstract: Fuel cell vehicles (FCVs) should control the energy management between two energy sources for fuel economy, using the stored energy in a battery or generation of energy through a fuel cell system. The fuel economy for an FCV includes trip costs for hydrogen consumption and the lifetime of two energy sources. This paper proposes an implementable energy management control strategy for an FCV to reduce trip costs. The concept of the proposed control strategy is first to analyze the allowable current of a fuel cell system from the optimal strategies for various initial battery state of charge (SOC) conditions using dynamic programming (DP), and second, to find a modulation ratio determining the current of a fuel cell system for driving a vehicle using the particle swarm optimization method. The control strategy presents the on/off moment of a fuel cell system and the proper modulation ratio of the turned-on fuel cell system with respect to the battery SOC and the power demand. The proposed strategy reduces trip costs in real-time, similar to the DP-based optimal strategy, and more than the simple energy control strategy of switching a fuel cell system on/off at the battery SOC boundary conditions even for long-term driving cycles.

Keywords: fuel cell vehicles; energy management control strategy; fuel cell system operation optimization; dynamic programming; optimal rule extraction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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