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Essay On Hybrid Vehicle

961 Words4 Pages

Abstract: In recent years, there is growing interest in Hybridization of military vehicles due to the features and advantages offered by the technology. Hybrid electric vehicle when compared with conventional vehicle, have the advantages of improved fuel efficiency due to optimal operation of ICE, regenerative braking and silent operation capability. Limitations related to key technologies such as compact electric motors/generators, power electronics and energy storage systems that are required to operate under extreme environmental conditions pose challenges to the development of Hybrid Electric powerpack. This paper describes the key technical challenges of HEV technologies considering futuristic applications of combat vehicles. The configuration …show more content…

Series-Parallel System
The features of both the series and parallel HEVs are included in the series-parallel hybrid configuration. The control mechanism in this configuration is complex, since it requires an additional electric machine and a planetary gear.
D. Complex Hybrid System
The complex hybrid is similar to the series-parallel hybrid configuration except that the power flow in the electric motor is bidirectional, while the power flow of the generator in series-parallel hybrid is unidirectional. Higher complexity is the major disadvantage of complex hybrid configuration [2].

III. GLOBAL SCENARIO OF MILITARY HEV PROGRAMMES
Development of hybrid propulsion drive for military tracked is very limited and very few manufacturers have attempted for hybrid electric propulsion drive for the military tracked vehicle. RENK, Gmbh, one of the prominent European manufacturers for Tracked vehicle transmission has reconfigured its already existing Hydro mechanical transmission HSWL 106C and converted it in to Hybrid drive and they used the Power split /Complex hybrid concept for the hybrid drive called the REX transmission. QinetiQ, UK has a hybrid solution for the tracked vehicle which was developed as part of the US FCS program and some prototypes of EX-drive Hybrid transmission Table II shows the worldwide scenario of military HEV programs

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