By: Kristina Pesce and Olivia Stephens
2nd period
http://www.fueleconomy.gov/feg/atv.shtml
•Integrated Starter/Generator(ISG)
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•Diesel Engines
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•Variable Valve Timing and Lift
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•Direct Fuel Injection
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•Cylinder Deactivation
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•Turbo Charging
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Power Steering Pump
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•Continuously Variable Transmission(CVT)
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•Automated Manual Transmission(AMT)
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•Improvements to tire tread, tire belts, and shoulder design
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•Smoothed Shaped Vehicles
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•Using lighter weight technologies and materials when building cars
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The Corporate Average Fuel Economy (CAFÉ)
•Regulations initiated by Congress in 1975
•Intended to improve the average fuel economy of cars and light trucks
•It is the mpg of cars and light trucks that don’t go over 8,500 pounds
•The standard for passenger cars is 27.5 mpg and the standard for
SUVs and light trucks is 22.2 mpg
•In 2011 the standard will change to include larger vehicles
•When first enacted the fuel economy dramatically increased then
quickly declined back down again but as of recently it has started to
slowly improve once more
•The standards have not changed since the 1980s
Electric Cars
•An electric motor is used in place of a gas powered engine. The motor is
in turn powered by a controller which draws its energy from rechargeable,
electric batteries.
•Cut pollution emissions up to 50% compared to gasoline powered cars
•Most argue that they use energy more efficiently
•One con is that when electric cars crash the batteries can get wired, a risk
that some consider heavier than the benefits
•Require a long time to recharge and there are few places beside home
where cars can be charged
•Can have high repair cost
•Are quieter than other cars
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Hybrid Cars
•Most feature ISGs
•Cut emission rates by up to 35%
•One con is there is not an efficient/safe way to dispose of the batteries and
motors
•The metal materials used in the batteries and motors are rare and can cause
environmental degradation to access
•There are government tax breaks if you buy a hybrid
•They run half and half on energy from electric and gas
•Typical 8 year warranty for the vehicle system
•Tend to be more costly than average gasoline powered cars
•Quieter than average cars
•Save more money on gas
•Factories creating hybrid cars can create as
much or more pollution as factories creating
gasoline powered cars
•Gas engine can help recharge electric battery
while driving and if needed can switch over
Plug-In Hybrid Cars
•Runs on gasoline and electricity like regular hybrid cars but has specific
modifications:
•Larger battery packs which can be recharged using common household
electricity
•Can drive very long distances without using any gasoline at all
•Can run on biofuel which helps reduce its use of gas
•It is not possible for an individual consumer to buy one but they are in the
testing stage
Wal-Mart Trucks Going Green
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Wal-Mart Continued
•Will save $52 billion per year in fuel costs
•Already has more than 100 hybrids in operation
•7,200 trucks already 15% fuel efficient
•Keeps driver warm without keeping the engine on
•Trucks now average about 7 mpg with 80,000 pound load
•Promises to double fuel efficiency of trucks from 6.5 to 13 mpgs by 2015
•The changes help to keep 26 billion pounds of carbon dioxide out of the air by
2020
http://www.greencarcongress.com/2005/12/walmart_seeks_t.htm
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Nissan Leaf
•First affordable car that claims to have 0 emissions and is 100% electric
•Due to be released by the end of this year
•It runs on laminated compact lithium-ion batteries
•It can seat up to 5 adults and has a 100 mile range
•80% of its battery can be charged in as little as 30 minutes
•Has LED headlights that only consume 10% power of that of traditional lamps
•It claims to get 367 miles a gallon
http://www.hybridcars.com/vehicle/nissan-leaf.html
Chevrolet Volt
•It has a 40 mile range
•It is going to be launched in November of this year
•It can run efficiently without being plugged in for days but gets top
performance when charged everyday
•Takes 8 hours to fully charge when using a normal outlet
•Can charge in as little as 3 hours when a 240v outlet is used
http://www.chevrolet.com/pages/open/default/future/volt.do
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