Title: Eco-driving: potential fuel economy for post-manufactured hybrid vehicles

Authors: Rochdi Trigui; Felicitas Mensing; Eric Bideaux

Addresses: IFSTTAR, 25 Avenue François Mitterrand, 69675 Bron, France ' IFSTTAR, 25 Avenue François Mitterrand, 69675 Bron, France; AMPERE, INSA Lyon, 25, Avenue Jean Capelle, 69621 Villeurbanne, France ' AMPERE, INSA Lyon, 25, Avenue Jean Capelle, 69621 Villeurbanne, France

Abstract: Eco-driving is an efficient and economical way to reduce vehicles' energy consumption. Eco-driving techniques have been practised for decades. However, only conventional vehicles have been deeply studied particularly by using optimisation and modelling to identify the energetically best speed profiles. In this paper, eco-driving of hybrid vehicles is addressed. The complexity of speed profile optimisation problem is increased as we have to consider the two energies consumed on-board, i.e., fuel and electricity. Considering an existing hybrid electric vehicle (HEV) with its own energy management strategy, we propose here an original approach based on dynamic programming, vehicle modelling and an equivalence factor between the consumed fuel and electricity. Results show that the defined factor should be carefully chosen in order to achieve the best fuel economy.

Keywords: eco-driving; hybrid electric vehicles; HEVs; hybrid vehicles; optimisation; dynamic programming; energy consumption; vehicle modelling; fuel economy; speed profiles.

DOI: 10.1504/IJEHV.2016.080730

International Journal of Electric and Hybrid Vehicles, 2016 Vol.8 No.4, pp.321 - 334

Received: 20 Aug 2016
Accepted: 29 Aug 2016
Published online: 05 Dec 2016 *

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