■ When braking (regenerative braking)
The electric motor (traction motor) charges the hybrid battery (traction battery).
The EV driving range can be extended by actively using this regenerative braking
to store electricity in the hybrid battery (traction battery).
Moreover, as fuel consumption is also reduced when in HV mode, the regenerative
braking system can be used effectively.
INFORMATION
■ Gasoline engine operation in EV mode or AUTO EV/HV mode
Even if there is a sufficient amount of electricity remaining in the hybrid battery (traction
battery) and EV driving range is being displayed on the multi-information display, EV
driving (driving using only the electric motor) may be canceled and both gasoline engine
and electric motor are used depending on the situation.
EV driving will be returned to automatically after EV driving becomes possible again.
EV driving may be canceled automatically in the following circumstances
*9
:
● When vehicle speed is more than approximately 135 km/h (84 mph).
● When in AUTO EV/HV mode:
When power is temporarily needed, such as when the accelerator pedal is fully
depressed or when accelerating suddenly.
*10
● When the temperature of the hybrid system is high, such as after the vehicle has been
parked in an extremely hot environment, or is driven at high speeds or up a slope, etc.
● When the temperature of the hybrid system is low.
● When the heater is switched on when the outside temperature is below about -10°C
(14°F).
● When the windshield defogger switch is pressed.
● When the system determines that the gasoline engine needs to be started.
■ Conditions in which the gasoline engine may not stop
Although the gasoline engine stops and starts automatically according to the vehicle
condition, it may not stop automatically in the following situations:
*11
● During gasoline engine warm-up
*9 :
The gasoline engine may also operate in circumstances other than those listed
above, depending on conditions.
*10 :
When driving in AUTO EV/HV mode. Even in EV mode, the gasoline engine may
start, depending on the condition of the hybrid battery (traction battery).
*11 :
Depending on the circumstances, the gasoline engine may also not stop automatical-
ly in other situations.
1-2. Important points for the plug-in hybrid system
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