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Electric
vehicles (EVs)
are cars that run on electricity stored in
batteries. EVs
are often confused with which
combine an internal combustion engine with a battery. hybrid
electric vehicles EVs are truly
zero emission cars because they have no tailpipe exhaust and no
evaporative emissions from fuel systems. Manufacturers have developed a
broad spectrum of EVs
- from neighborhood
electric cars which can be
used for short trips around town to full function electric cars which
can be used for longer trips and have the body of conventional cars.
The availability and styles of these vehicles vary from year to year,
but with battery technology getting more sophisticated, manufacturers
will have the ability to design electric
vehicles with extended range,
faster charging and more power.
Why would I want an EV?
- It's
logical. Sixty five percent of U.S. families own a second car, yet over
50 percent of urban trips last less than ten minutes perfect for Ev's.
Eighty percent of all trips are within 10 miles or less in a
traditional automobile resulting in cold running motors that translate
into excessive engine wear and more pollutants. Ev's are the right
"tool" for most of our transportation jobs.
- It's
easy! Say goodbye to annoying lines at the pump, oil stains, tune-ups,
oil changes, radiator coolant, emissions tests, muffler replacements,
transmission woes, and many other common headaches of today's "modern"
combustion automobile.
- It's
economical! Ev's
offer an alternative to a second car's initial
purchase price, maintenance, insurance and cost of operation represent
a very real and stylish alternative to a traditional gas-powered
automobile for those around-the-neighborhood trips.
An electric vehicle, or
EV,
is a vehicle with one or more electric motors
for propulsion. This is also referred to as an electric drive vehicle.
The motion may be provided either by wheels or propellers driven by
rotary motors, or in the case of tracked vehicles, by linear
motors.Unlike an internal combustion engine that is tuned to
specifically operate with a particular fuel such as gasoline or diesel.
An
electric drive vehicle needs electricity which could come
from
sources such as batteries,
fuel cells or a generator.
This flexibility
allows the drive train of the vehicle to remain the same, while the
fuel source can be changed.
The energy used to propel the vehicle may be obtained from several
sources, some of them more ecological than others:
- on-board
rechargeable energy storage system (RESS), called Full Electric
Vehicles (FEV). Power storage methods include:
o chemical energy stored on the vehicle in on-board batteries: Battery
electric vehicle (BEV)
o static energy stored on the vehicle in on-board super capacitors
o kinetic energy storage: flywheels
- direct
connection to land-based generation plants, as is common in electric
trains and trolley buses (See also : overhead lines, third rail and
conduit current collection)
- renewable
sources such as solar power: solar vehicle
- generated
on-board using a fuel cell: fuel cell vehicle
- generated
on-board using nuclear energy: nuclear submarines and
aircraft carriers
It is also possible to have hybrid
electric vehicles that derives
energy from multiple sources. Such as:
- on-board
rechargeable energy storage system and a direct continuous
connection to land-based generation plants for purposes of on-highway
recharging with unrestricted highway range
- on-board
rechargeable energy storage system (RESS) and a fueled propulsion power
source (internal combustion engine): including the diesel-electric
locomotive and plug-in
hybrid
Electric
vehicles can include electric airplanes, electric boats,
and electric
mot Electric motive power started with a small railway operated by a
miniature electric motor, built by Thomas Davenport in 1835. In 1838, a
Scotsman named Robert Davidson built an electric locomotive that
attained a speed of four miles an hour. In England a patent was granted
in 1840 for the use of rails as conductors of electric current, and
similar American patents were issued to Lilley and Colten in 1847.
Between
1832 and 1839 (the exact year is uncertain), Robert Anderson of
Scotland invented the first crude electric carriage, powered by
non-rechargeable Primary cells.
By the 20th century, electric cars and rail transport were commonplace,
with commercial electric
automobiles having the majority of the market.
Over time their general-purpose commercial use reduced to specialist
roles, as platform trucks, forklift trucks, tow tractors and urban
delivery vehicles, such as the iconic British milk float.
Electrified
trains were used for coal transport as the motors did not
use precious oxygen in the mines. Switzerland's lack of natural fossil
resources forced the rapid electrification of their rail network. One
of the earliest rechargeable batteries - the Nickel-iron battery - was
favored by Edison for use in electric cars.
Electric
vehicles were among the earliest automobiles, and before
the
preeminence of light, powerful internal combustion engines, electric
automobiles held many vehicle land speed and distance
records in the
early 1900s. They were produced by Baker Electric, Columbia Electric,
Detroit Electric, and others and at one point in history out-sold
gasoline-powered vehicles.
In the 1930s, National City Lines, which was a partnership of General
Motors, Firestone, and Standard Oil of California purchased many
electric tram networks across the country to dismantle them and replace
them with GM buses. The partnership was convicted of conspiring to
monopolize the sale of equipment and supplies to their subsidiary
companies conspiracy, but were acquitted of conspiring to monopolize
the provision of transportation services. Electric tram line
technologies could be used to recharge BEVs and PHEVs on the highway
while the user drives, providing virtually unrestricted driving range.
The technology is old and well established (see : Conduit current
collection, Nickel-iron battery). The infrastructure has not been built.
In January of 1990, General Motors' President introduced its EV concept
two-seater, the "Impact," at the Los Angeles Auto Show. That September,
the California Air Resources Board mandated major-automaker sales of
Ev's, in phases starting in 1998. From 1996 to 1998 GM produced 1117
EV1s, 800 of which were made available through 3-year leases.
Chrysler, Ford, GM, Honda, Nissan and Toyota also produced limited
numbers of Ev's for California drivers. In 2003, upon the expiration of
EV1
leases, GM crushed them. The crushing has variously been attributed
to 1) the auto industry's successful Federal Court challenge to
California's Zero-emissions vehicle mandate, 2) a federal regulation
requiring GM to produce and maintain spare parts for the few thousands EV1s and 3) the
success of the Oil and Auto industries' media campaign
to reduce public acceptance of electric vehicles.
A movie made on the subject in 2005-2006 was titled Who Killed the
Electric Car? and released theatrically by Sony Pictures
Classics in
2006. The film explores the roles of automobile manufacturers, oil
industry, the US government, batteries, hydrogen vehicles and
consumers, and each of their roles in limiting the deployment and
adoption of this technology.
Honda, Nissan and Toyota also repossessed and crushed most of their Ev's, which, like
the GM EV1s,
had been available only by closed-end
lease. After public protests, Toyota sold 200 of its RAV Ev's to eager
buyers; they now sell, five years later, at over their original
forty-thousand-dollar price.
Currently, only a few
electric cars are commercially available,
including:
- The
REVA, manufactured in India since 2001 for the Indian market, then also
commercialized in the UK (since 2003) and several other European
countries (including Cyprus and Greece, Belgium, Germany, Spain and
Norway.
- The
Tesla Roadster, commercialized in the USA.
- Several
smaller electric vehicles, most of which are only commercialized
locally.
- One in
particular is Hybridtechnologies out of North Carolina.
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