| The improvement in fuel economy is the result of taking the best
parts of both the gasoline engine and the electric motor and using
them together. |
A vehicle powered only by an electric motor has a limited driving
range, lengthy recharge time, and an inconsistent performance, depending
on the remaining battery strength. While vehicles powered by an
internal combustion engine are more flexible than electrics, these
vehicles are set up to deliver much more power than is needed.
A hybrid vehicle uses a smaller engine with less horsepower and
pairs it with an electric motor to deliver extra power when necessary.
In addition to utilizing a gasoline engine and an electric motor
more efficiently, hybrid vehicles also feature "regenerative
braking" to further improve fuel economy. Hybrids generate
electricity from the car's own motion when you brake to a stop.
This free energy is normally wasted heating up the brake drums.
In hybrids this energy is captured as electricity and used to recharges
the batteries, increasing the number of miles that can be traveled
per gallon of gasoline.
| Compared
with all-electric cars, hybrids have a great advantage. You
don't have to wait for them to charge. You just buy gas when
you run out. With the same size gas tank, they go even further
than a regular gas car. |
Compared with all-electric cars, hybrids have a great advantage.
You don't have to wait for them to charge. You just buy gas when
you run out. With the same size gas tank, they go even further than
a regular gas car.
Hybrid vehicles incorporate the automotive innovations, advanced
technologies, and engine refinements; all are engineered to increase
performance, reduce emissions, and maximize fuel efficiency. Hybrid
cars include the following features and benefits:
Smaller
and more Efficient Engines - a hybrid car features a small
fuel-efficient gas engine combined with an electric motor that assists
the engine when accelerating.
Regenerative
Braking - the electric motor of a hybrid is powered by
batteries and acts as a generator that recharges the batteries automatically
while the car is slowing down.
Less
Wear and Tear - an added benefit is less wear on the brake
pads, which means that they don't need to be replaced as often as
conventional brakes.
Periodic
Engine Shut Off - To conserve fuel, all hybrids shut down
the gasoline-powered engine during stops. This not only saves fuel
and reduces emissions, but cuts electrical consumption as well.
The engine restarts automatically when put back into gear.
Advanced
Aerodynamics - Lower Drag. Hybrids have unconventional
design features to maximize airflow. All manufacturers try to reduce
drag wherever possible because a vehicle with less drag requires
less power to move and thus takes up less gas.
Lightweight
Materials - The use of advanced materials such as magnesium,
aluminum alloys, and plastic resins reduces weight throughout the
vehicle. Reduced weight of the material means better performance
because the engine does not have so much mass to push around.
Environmentally
Friendly - Lower consumption of natural resources with
reduced emissions due to smaller, more efficient engines.
In the five years that hybrids have been on the market, there has
been an increase from 2 vehicles, a two-seater and a compact sedan,
to 11 vehicles that come in almost every body style. Today, consumers
have a choice of several sedans, SUVs, luxury vehicles and even
small pickups. Hybrid Center at edmunds.com
offers detailed information about every hybrid currently on the
market.
Most automakers consider hybrids to be the first step on the long
road of change in transportation infrastructure, a change that is
less dependent on foreign oil.
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