
A hybrid vehicle is one
that can run on more than just one type of power source. The power
source can be manual as well as electrical or mechanical. With
reference to cars, hybrid cars is a term that is used for vehicles that
can run on gasoline or diesel as well as on battery power generated
from Lead-Acid or Nickel-metal hydride based cells.
The science behind hybrid cars is not very complicated. In all the
commercially available hybrid cars both internal combustion engine as
well as an electrical motor are installed. Both of these can
individually produce enough power to run the car. At lower speeds the
batteries can produce enough power to move the motor and thereby power
the car. However, at higher speeds or when the battery charge goes down
power from gasoline is required and according the internal combustion
engine is turned on. Generally for speeds up to 40 mph electrical power
generated from the on-board batteries is sufficient enough. The
internal combustion engine is also turned on when the batteries run out
of charge and need to be recharged. This ensures that the car needn't
be stopped or plugged anywhere if the batteries run out of power.
Most of the hybrid cars use only electric power when the car is
reversing or is idle
Read more: Science behind hybrid cars