Page - 105 - in Hybrid Electric Vehicles

Chapter 5 Performance Analysis of an Integrated Starter- Alternator-Booster for Hybrid Electric Vehicles Florin-Nicolae Jurca and Mircea Ruba Additional information is available at the end of the chapter http://dx.doi.org/10.5772/intechopen.68861 Abstract The chapter aims to investigate the reduction of the fuel consumption of conventional vehicles using mild-hybridization and considering the New European Driving Cycle (NEDC), using two topologies of electrical machines dedicated to integrated starter-alter- nator-booster (ISAB) applications: directly connected to the crankshaft (called ‘normal ISAB’) and indirectly through the belt system (called BSAB), respectively. The behaviour of ISAB and BSAB of a hybrid electric vehicle has been investigated with a multi-domain simulation software developed in Advanced Modelling Environment for performing Simulation (AMESim). Keywords: electrification, hybrid electric vehicle, integrated starter-alternator-booster, electrical machine 1. Introduction As the electrification of vehicle propulsion at low (e-bikes) and high power (buses) continues to extend, the current research efforts on this topic are focused especially on increasing the autonomy of vehicles due to the accumulation of electricity. Due to the lack of charging sta- tion and low autonomy in terms of maintaining a reduced weight of the battery, the electrical vehicle is momently limited to urban trails. In this context, the hybrid electric vehicles (HEVs) were considered initially as a transition between conventional vehicles (internal combustion engine (ICE)) and the electric ones, and now they still remain a viable solution that is gaining ground by combining the advantages of both types of vehicles [1–4]. The trend in all types of vehicles (conventional, electrical, or hybrid vehicles) for the next years is to increase the equipment with different types of electrical subsystems. These can be related © 2017 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.