Toyota Prius 2007 Pocket Reference Manual page 38

Toyota hybrid system
Toyota hybrid system combines a gaso-
line engine and electric motor power to
improve the fuel economy and minimize
the emissions as well as to provide
better power performance than the ordi-
nary gasoline!powered vehicles.
Depending on the driving condition, the
vehicle runs on the best combination of;
Gasoline engine power
D
Electric motor power generated by
D
the gasoline engine
Electric motor power of the hybrid
D
battery
Furthermore, the energy is efficiently used
in the following ways:
When stopping the vehicle, the gaso-
D
line engine is automatically stopped.
When applying the brakes or decelerat-
D
ing, electricity is converted from the
turning force of the wheels and stored
in the hybrid battery. (This is called
regenerative brake.)
Since the battery is charged by the
gasoline engine as needed, it does not
require charging
source like an electric vehicle.
10
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Toyota hybrid system
operating condition
Basic operations are described below. Be-
sides, Toyota hybrid system performs vari-
ous controls depending on the operating
condition: The "Energy Monitor" screen
tells you which power is used currently.
from an outside
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12p059b
Electric power
in use
When starting or backing up, etc., the
vehicle runs on electric power from hybrid
battery, because the gasoline engine effi-
ciency is low.
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