It is probably
going to be some time before you and me sit behind the wheel of car
that runs on electricity - a car that has zero pollution, and almost
zero noise.
However, we have come a long way from the initial jerky models of
the 70s, and international car majors are putting in earnest efforts
to make the electric car a reality. (albeit spurred by progressive
laws - The California Air Resources Board requires all manufacturers
who sell more than 35,000 cars annually, to produce ZEV's -
Zero Emission Vehicles - to 2% of sales till 2000. This percent
would gradually increase to 10% from 2003 onwards). Although the law
is enforced only in the State of California, it is a matter a time
before similar legislation spreads throughout the world.
Today the electric car certainly does have its limitations - they
are expensive, the 'efficiency' offered by the existing batteries
are fairly low (approximately 125-150 kms before they have to be charged
again), and re-charging facilities are not readily available.
However elaborate test-drives are being carried out by manufacturers,
and although limited, a number of electric cars have already found
their way on the road. Battery-technology is fast improving, and there
is no doubt that these are the cars of the future.
World
Electric Cars
General Motor's EV1
This trendy
two-seater coupe is powered by a three-phase AC induction motor.
The car has an average "efficiency / range" of 80 miles per charge,
depending on factors like driving style, terrain, temperature.
The "EV1" uses lead-acid batteries (533-kg Delco
Valve-Regulated Lead-Acid (VRLA) battery pack). The battery can
be re-charged by a 220-volt source in less than 3 hours. Like most
modern electric cars, "regenerative braking" (i.e. the motors turn
into generators on deceleration) enhances the efficiency.
The EV1 can reach 96 kms per hour in under 9 seconds,
and has a maximum speed of more than 128 kms per hour.
Nissan - Future Electric Vehicle (FEV-II)
The first
FEV used a Nickel-Cadmium battery pack, and had a range of 160 kms
per charge, at 72 kms/hour. The FEV-II has further developed on
the original version and is now equipped with a lithium ion battery
that has greatly increased the driving range, thus making it a more
practical proposition.
The car is driven by a three-phase AC Induction
Motor, which generates a maximum power of 55kW. Air conditioner
type: Heat pump type air conditioner exclusively for electric vehicles
The four-seater hatchback has a driving range of
200 kms per charge (without air-conditioning), and a maximum speed
of 120 kms/hour.
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