Performance of a Series Hybrid Electric Vehicle with a Free-Piston Energy Converter

The free-piston energy converter (FPEC), consists of an internal combustion engine and a linear electrical machine. It is characterised by high efficiency and rapid transient response, which makes it suitable for hybrid electric vehicles. In this paper we investigate the performance gain of utilisin...

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Bibliographic Details
Main Authors: Hansson, J., Leksell, M.
Format: Conference Proceeding
Language:English
Subjects:
Control systems
Diesel engines
Electrical engineering
Electrical engineering, electronics and photonics
Electrochemical machining
Elektroteknik
Elektroteknik, elektronik och fotonik
Energy management
Free-Piston Energy Converter
Fuel economy
Hybrid electric vehicles
Internal combustion engines
linear machines
Mechanical power transmission
power convertors
Power electronics
Power generation
Power management
Powertrain evaluation
Series hybrid electric vehicle
TECHNOLOGY
TEKNIKVETENSKAP
transient response
Online Access:Request full text
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Summary:The free-piston energy converter (FPEC), consists of an internal combustion engine and a linear electrical machine. It is characterised by high efficiency and rapid transient response, which makes it suitable for hybrid electric vehicles. In this paper we investigate the performance gain of utilising the FPEC in a medium sized series hybrid electric vehicle (SHEV), compared to a conventional diesel-generator. First, we utilise optimisation to find a lower limit on the SHEVs fuel consumption for a given drive cycle. In addition, we develop a control strategy based on the ideas of an equivalent consumption minimisation (ECM) proposed earlier in the literature. The results show a potential decrease in fuel consumption of up to 19% compared to a diesel-generator SHEV. The ECM control strategy behaves as desired, and a 13% reduction of fuel consumption compared to a traditional load-following strategy is achieved
ISSN:1938-8756
DOI:10.1109/VPPC.2006.364342