• T.V.Subba rao
• N. Shanti kumari
• M.Sasi kumar
• A.N.V.K.Naveen

Transportation is vital in everyday existence of individuals in the whole world. A large portion of the present vehicles utilize Internal Combustion Engine(ICE). In any case, nonstop use of IC Engines prompts several issues like air contamination and global warming These regular ICEs can be superseded by proposed three common structures like like Electric vehicles (EV), Hybrid electric vehicles (HEV), and Fuel cell vehicles (FCV). Consequently advanced vehicle technology focuses on HEVs. Limited accessibility of fuel based energy sources, required the development of substitute sources, for example, hybrid electrical vehicle. HEV consolidates internal combustion engine, electric machines and power electronic gear. This paper presents history, classification, vehicle types, and strength strategies of HEV'S. A hybrid electric vehicle (HEV) has two sorts of vitality storage space units, electricity and fuel. Exactly when power is used, a battery is utilized to store the vitality; an electromotor will be used as footing engine, when fuel is utilized , a tank is required, and an Internal Combustion Engine (ICE) is used to make mechanical power. Contingent upon the drive train structure HEVs can be recognized as parallel, series or combined HEVs. The correlation of the real characteristics of EVs, HEVs, and FCVs is exhibited. The examination demonstrates that HEV’S are prevalent as far as efficiency, nearby discharges, driving reach when contrasted with EVs and FCVs

Hybrid electric vehicle, Electric vehicle, Fuel cell vehicles, Internal Combustion Engines.

"A REVIEW ON HYBRID ELECTRIC VEHICLES TECHNOLOGY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.255-259, May 2019, Available :http://www.jetir.org/papers/JETIRCU06051.pdf

"A REVIEW ON HYBRID ELECTRIC VEHICLES TECHNOLOGY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp255-259, May 2019, Available at : http://www.jetir.org/papers/JETIRCU06051.pdf