Volvo V90 TWIN ENGINE Owner's Manual page 474

STARTING AND DRIVING
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HYBRID
This is the car's normal mode where the
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electric motor and internal combustion
engine work together.
When the car starts, it is in the Hybrid mode. The
control system uses both the electric motor and
internal combustion engine - individually or in
parallel - and calculates optimal use with regard
to performance, fuel consumption and comfort.
The capacity to run solely with the electric motor
depends on the hybrid battery's energy level and,
for example, the need for heating/cooling in the
passenger compartment.
If high power output is available, it is possible to
drive with electrical power alone. When the accel-
erator pedal is depressed, only the electric motor
is activated until a certain position is reached.
The internal combustion engine starts when this
position is exceeded and the energy level in the
battery is insufficient for the engine power that
the driver requests with the accelerator pedal.
At low energy level (hybrid battery almost empty)
the battery's energy level must be maintained,
leading to the internal combustion engine star-
ting more often. Charge the hybrid battery from a
230 VAC socket with the charging cable, or acti-
Charge
vate in the function view in order to
restore the capacity to run on electricity alone.
The drive mode is designed for low energy con-
sumption with an optimised mix of the electric
motor and the internal combustion engine, with-
out compromising the climate comfort and driving
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experience. When higher acceleration is required,
maximum additional power from the electric drive
line is used. The car also senses if the driving
conditions require all-wheel drive and automati-
cally engages it if necessary. All-wheel drive and
electric additional power are always available
regardless of the battery's state of charge.
Information in the driver display
When driving in hybrid mode the driver display
shows a hybrid gauge. The pointer in the hybrid
gauge indicates how much energy the driver
requests with the accelerator pedal. The marking
between the lightning bolt and the drop shows
how much energy is available.
The driver display for propulsion with both the electric
motor and internal combustion engine.
The driver display also shows when
energy is returned to the battery
(regenerated) during light braking.
PURE
Drive the car with electric motor, with energy
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consumption as low as possible and with
lowest possible carbon dioxide emissions.
The drive mode maximises driving on the hybrid
battery. This means, for example, that the output
of certain climate settings is reduced to provide
the longest possible mileage on electric power
alone.
The Pure mode is available when the hybrid bat-
tery has a sufficiently high energy level. The inter-
nal combustion engine also starts in the Pure
mode if the energy level in the battery falls too
low. The internal combustion engine also starts
if the speed exceeds 125 km/h (78 mph)
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if the driver requests more motive force than
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electric drive can provide
in the event of system/component limita-
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tions, e.g. low outside temperature.
The drive mode is optimised for maximum range
with electric propulsion and especially developed
for urban traffic. Pure means lowest combustion
even when the hybrid battery is empty. The cli-
mate in the passenger compartment is regulated
to Eco climate, and in slippery driving conditions,
more wheel spin can be permitted before all-
wheel drive is activated automatically.