Hybrid Electric Vehicles

1
Hybrid Electric Vehicles

• By Sara Dahill-Brown, Alicia Dooley, Eve Gaus,
  Nathaniel Hill, Nick Kaloudis and Kjell Von
  Snierden

2
The Problem

• Transportation consumes 20 of US energy and 20
  of US CO2 emissions
• Not sustainable for the next 50 years
• I feel more confident than ever that the power
  to save the planet rests with the individual
  consumer.- Denis Hayes
• Consumers can have a positive impact on the
  environment

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The Solution

• HEVs and Fuel cell technology are currently the
  leading solutions compatible to sustainable
  development
• Both have advantages and disadvantages
• Barriers to fuel cell economy
• Advantages to HEVs over current Internal
  Combustion engines
• The current disadvantages to HEVs

4
Fuel Cell Technology

• Potential solutions to both HEV and Fuel Cell
  Technology
• HEVs, for now, seem to be the the more applicable
  answer
• Many barriers to overcome with fuel cell
  technology

5
Barriers to fuel cell technology

• Availability
• Production, especially in the short run
• Reduction of harmful emissions?
• Expensive
• Infrastructure problems

6
Advantages of HEVs

• Use less oil than ICE
• Emit less CO2 than ICE
• Fuel efficiency increased
• Honda Insight- 700 mi/tank
• Toyota Prius- 500 mi/tank
• Honda Civic Hybrid- 650 mi/tank
• http//www.ott.doe.gov/hev/what.html

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More Advantages

• Less overall mass
• Regenerative braking
• Battery level efficiency
• Tax incentives
• http//www.hybridcars.com/how-hybrids-work.html

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HEV info.
Fuel (estimated per year) Vehicle emissions (estimated per year in pounds)
Consumption Carbon dioxide Carbon monoxide Nitrogen oxides Hydro carbons
2003 Honda Civic Hybrid (47.7 mpg, SULEV) 12,500 miles/yr 263 Gal 5,089 lb 79.9 lb 0.8 lb 0.8 lb
2003 Honda Civic (33.8 mpg, ULEV) 12,500 miles/yr 370 Gal 7,176 lb 135 lb 7.4 lb 3 lb
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Energy Loss
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Disadvantages to HEVs

• Maintenance
• Towing capacity

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Currently

• Ford Escape  Hybrid SUV 35mpg price
  unannounced
• http//www.fordvehicles.com/escapehybrid/home/inde
  x.asp?bhcp1
• Toyota Prius 20,810 55mpg -
  http//www.toyota.com/prius/
• Honda Civic Hybrid 19,650 and 45 mpg
• http//www.hondacars.com/models/model_overview.asp
  ?ModelNameCivicHybridbhcp1
• Insight Hybrid 19,180 65 mpg
• http//www.hondacars.com/models/model_overview.asp
  ?ModelNameInsight

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In the next 5 years

• Growing demand
• Greater market
• Car companies will respond
• More variety

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Conclusion

• Air pollution is a serious concern
• Fallbacks to Fuel Cell economy
• In the short run HEVs seem to be a viable
  alternative