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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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