Future design trends in Automobile Engineering (HEV)

Future design trends in Automobile Engineering (HEV)

INTRODUCTION:

Any vehicle is a hybrid when it combines two or more sources of power. In fact, many people have probably owned a hybrid vehicle at some point. For example, a mo-ped (a motorized pedal bike) is a type of hybrid because it combines the power of a gasoline engine with the pedal power of its rider.
Hybrid vehicles are all around us. These include Giant mining trucks, Submarines, diesel-electric buses, locomotives etc.

The gasoline-electric hybrid car is just that a cross between a gasoline-powered car and an electric car. Hybrid electric vehicles (HEVs) combine the internal combustion engine of a conventional vehicle with the battery and electric motor of an electric vehicle, resulting in twice the fuel economy of conventional vehicles. This combination offers the extended range and rapid refueling that consumers expect from a conventional vehicle, with a significant portion of the energy and environmental benefits of an electric vehicle. The practical benefits of HEVs include improved fuel economy and lower emissions compared to conventional vehicles. The inherent flexibility of HEVs will allow them to be used in a wide range of applications, from personal transportation to commercial hauling.

The flexibility in the design of hybrid vehicles comes from the ability of the control strategy to manage how much power is flowing to or from each component. There are many (often conflicting) objectives desirable for HEVs, the primary ones being:

• Maximize fuel economy
• Minimize emissions
• Minimize propulsion system cost to keep overall vehicle cost affordable to the consumer market
• Do all of the above while maintaining or improving upon acceptable performance (acceleration, range, handling, noise, etc.)

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