Toyota 2013 Avalon Hybrid Owner's Manual page 54

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1-2. Hybrid system
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When stopped/during start off
The gasoline engine stops when the vehicle is stopped. During start
off, the electric motor (traction motor) drives the vehicle. At slow
speeds or when traveling down a gentle slope, the engine is
stopped and the electric motor (traction motor) is used.
◆
During normal driving
The gasoline engine is predominantly used. The electric motor
(traction motor) charges the hybrid battery (traction battery) as nec-
essary.
◆
When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the
hybrid battery (traction battery) is added to that of the gasoline
engine via the electric motor (traction motor).
◆
When braking (regenerative braking)
The electric motor (traction motor) charges the hybrid battery (trac-
tion battery).
Vehicle proximity notification system
When driving with the gasoline engine stopped, a sound, which
changes in accordance with the driving speed, will be played in order
to warn people nearby of the vehicle's approach. The sound will stop
when the vehicle speed exceeds approximately 15 mph (25 km/h).
AVALON_HV_U (OM41451U)