Page - 14 - in Emerging Technologies for Electric and Hybrid Vehicles

Energies 2017,10, 1217 Figure17.W-IWMsetupshowingefficiencyat100%torquereference.Adaptedfrom[26]. 3.2.HEVSetup HEVsusebothanelectricalpropulsion systemandan ICE.Variousways inwhich these two can be set up to spin thewheels creates different configurations that can be summedup in four categories [4]: (1) Serieshybrid (2) Parallelhybrid (3) Series-parallelhybrid (4) Complexhybrid 3.2.1. SeriesHybrid Thisconfiguration is thesimplestone tomakeanHEV.Only themotor is connectedto thewheels here, theengine isusedtorunageneratorwhichprovides theelectricalpower. It canbeputasanEV that isassistedbyanICEgenerator [4]. Serieshybriddrive train is showninFigure18. Table2shows themeritsanddemeritsof thisconfiguration. Table2.Advantagesandlimitationsofserieshybridconfiguration.Adaptedfrom[8]. Advantages Efficientandoptimizedpower-plant Possibilities formodularpower-plant Optimizeddrive line Possibilityofswift ‘blackbox’ serviceexchange Longlifetime Mature technology Fast response Capableofattainingzeroemission Limitations Large tractiondrivesystem Requirementofproperalgorithms Multipleenergyconversionsteps 14