Toyota SIENNA 2022 Manual page 82

82
1-4. Hybrid system
Predictive efficient drive
(vehicles with navigation
*
system)
*
: This function can only be used in
the mainland U.S.A. It cannot be
used in other states and territo-
ries, including Alaska and Hawaii.
This system operates based on
the driving situation and traffic
information to enhance fuel
economy.
For details about Predictive effi-
cient drive, refer to "NAVIGA-
TION AND MULTIMEDIA
SYSTEM OWNER'S MANUAL".
Predictive deceleration sup-
■
port
 When the vehicle approaches
to predictive deceleration sup-
port points registered in the
navigation system, the "Refer-
ence operation range" (
the ECO Accelerator Guid-
ance (P.108) on the multi-
information display will be
turned off to encourage the
driver to reduce excessive
acceleration.
 The engine braking force will
be increased according to the
driving conditions to more effi-
ciently charge the hybrid bat-
tery (traction battery) after the
accelerator pedal is released.
Predictive SOC
■
The following types of control
are performed based on data
such as road and traffic informa-
tion during route guidance by
the navigation system to help
ensure that the vehicle effi-
ciently uses electricity.
 When there is a long downhill
slope along the route, the sys-
tem reduces the hybrid bat-
tery (traction battery) level
before reaching the slope to
help ensure charging capacity
for regenerative braking while
traveling downhill.
 When traffic congestion is
predicted along the route, the
) of
system helps ensure a certain
A
battery level before reaching
congested roads to reduce
the frequency of starting the
engine to charge the hybrid
battery (traction battery) due
to low battery levels.
*
: SOC means state of charge
*
control