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Energies 2015, 8(9), 10106-10126; doi:10.3390/en80910106

A Study of Fuel Economy Improvement in a Plug-in Hybrid Electric Vehicle using Engine on/off and Battery Charging Power Control Based on Driver Characteristics

1
School of Mechanical Engineering, Sungkyunkwan University, 300 Chunchun-dong, Jangan-gu, Suwon 440-746, Korea
2
Korea Automotive Technology Institute, 330 Pungse-ro, Pungse-myeon, Cheonan-si, Chunggnam 330-910, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Ming Cheng
Received: 17 April 2015 / Revised: 12 June 2015 / Accepted: 22 August 2015 / Published: 16 September 2015
(This article belongs to the Special Issue Advances in Plug-in Hybrid Vehicles and Hybrid Vehicles)
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Abstract

In this study, driving data for various types of drivers are collected using a VIDE (virtual integrated driving environment), and a driver model is developed. To represent the driver tendencies quantitatively, the DDA (degree of driver aggression) is proposed based on fuzzy logic. DDA has a 0-1 value; the closer the DDA is to one, the more aggressive the driver. Using the DDA, an engine on/off and battery charging power control algorithm are developed to improve the fuel economy of a power-split-type plug-in hybrid electric vehicle. The engine on/off control reduces the frequent engine on/off caused by aggressive driving, whereas the battery charging power control maintains the battery state of charge (SOC) by operating the engine according to the DDA. It is found that the proposed control algorithm improves fuel economy by 17.3% compared to the existing control for an aggressive driver. View Full-Text
Keywords: degree of driver aggression (DDA); plug-in hybrid electric vehicle (PHEV); battery charging power control degree of driver aggression (DDA); plug-in hybrid electric vehicle (PHEV); battery charging power control
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lee, S.; Choi, J.; Jeong, K.; Kim, H. A Study of Fuel Economy Improvement in a Plug-in Hybrid Electric Vehicle using Engine on/off and Battery Charging Power Control Based on Driver Characteristics. Energies 2015, 8, 10106-10126.

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