Hybrid Vehicles

Sinan Subaşı20929745

What is a hybrid?What is a hybrid?

• Hybrid electric vehicles (HEVs) Hybrid electric vehicles (HEVs) include both a combustion engine as include both a combustion engine as well as an electric motor.well as an electric motor.

• It uses the combustion engine at It uses the combustion engine at most efficient range and don’t need most efficient range and don’t need a gearbox.a gearbox.

• If we had better batteries, we would If we had better batteries, we would not need hybrids at all.not need hybrids at all.

Advantages of HybridsAdvantages of Hybrids

• Regenerative braking actually makes city Regenerative braking actually makes city driving more economical.driving more economical.

• Fuel efficiency is greatly increased.Fuel efficiency is greatly increased.

• Emissions are greatly decreased.Emissions are greatly decreased.

• Decrease in noise, greenhouse effectDecrease in noise, greenhouse effect

• Increase in air qualityIncrease in air quality

• New materials and technologies can be New materials and technologies can be implemented.implemented.

Disadvantages of HybridsDisadvantages of Hybrids

• Higher costs, massive use of rare Higher costs, massive use of rare earth metalsearth metals

• No infrastructure for Plug-in hybridsNo infrastructure for Plug-in hybrids

• Heavy vehicles, expensive Heavy vehicles, expensive servicabilityservicability

• Pollution from the car factoriesPollution from the car factories

• Crashes can cause electric shockCrashes can cause electric shock

ReferencesReferences

• http://auto.howstuffworks.com/electric-car7.htm

• Engine and Fuel Alternatives, Prof. Wai Cheng, Engine and Fuel Alternatives, Prof. Wai Cheng, MIT (ICE Course Notes)MIT (ICE Course Notes)

• Modern Electric, Hybrid Electric and Fuel Cell Modern Electric, Hybrid Electric and Fuel Cell Vehicles, Fundamentals, Theory and Design, Vehicles, Fundamentals, Theory and Design, Ehsani, Gao, Emadi, CRC Press, Taylor and Ehsani, Gao, Emadi, CRC Press, Taylor and Francis, 2nd Edition, 2010.Francis, 2nd Edition, 2010.

• http://en.wikipedia.org/wiki/Hybrid_vehiclehttp://en.wikipedia.org/wiki/Hybrid_vehicle