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Because electric vehicles (EVs) do not generate pollutants during usage, and they can potentially rely on energy provided by a selection of renewable sources, they are the focus of much current interest. However, due to the present capabilities of battery technology, the overall range of such a vehicle is limited. Furthermore, once the battery is depleted relatively long recharging times are currently required before the vehicle is available for use again. Extended range electric vehicles (E-REVs) overcome many of the short-comings of EVs by having a ‘range extender’ unit, which consists of an onboard electric generator powered by an internal combustion engine. In this type of powertrain, the engine configuration either used the spark ignition or compression ignition engines. The engine operation in cold-start conditions can have a significant impact on drivability, fuel economy and tailpipe emissions.

Energy efficient HVAC System is getting a significant attention from the automotive industries. By reducing environmental thermal load, it is expected to achieve a vehicle climate control system that requires less AC power on a vehicle while maintaining the occupant thermal comfort. In order to accomplish this, several technologies to reduce the environmental thermal load are required that includes a glazing system with solar reflecting glasses, highly effective thermal insulation materials, and vehicle interior weight reduction strategies. The structure of a vehicle can absorb a significant amount of heat when exposed to hot climate conditions. 50-70% of this heat penetrates through the glazing and raises both the internal cabin air and the interior trim surface temperature [1].