Some of
the advanced technologies typically used by hybrids include
- Regenerative Braking. The
electric motor applies resistance to the drivetrain causing the
wheels to slow down. In return, the energy from the wheels turns the
motor, which functions as a generator, converting energy normally
wasted during coasting and braking into electricity, which is stored
in a battery until needed by the electric motor.
- Electric Motor Drive/Assist. The
electric motor provides additional power to assist the engine in
accelerating, passing, or hill climbing. This allows a smaller, more
efficient engine to be used. In some vehicles, the motor alone
provides power for low-speed driving conditions where internal
combustion engines are least efficient.
- Automatic Start/Shutoff.
Automatically shuts off the engine when the vehicle comes to a stop
and restarts it when the accelerator is pressed. This prevents
wasted energy from idling. This is why hybrid cars have
similar city and highway MPG.
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