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STARTING AND DRIVING
462
All-wheel drive
All-wheel drive (AWD
6
) means that the car is
driving all four wheels at the same time,
which improves traction.
The electric motor that drives the rear wheels
enables electric all-wheel drive functionality.
All-wheel drive characteristics vary depending
on the selected drive mode.
Related information
•
Drive modes (p. 464)
•
Gearbox (p. 456)
Drive systems
Volvo's Twin Engine combines an internal
combustion engine that drives the front
wheels with an electric motor that drives the
rear wheels.
Two drive systems
Depending on the driver-selected drive mode
and available electric energy, the two drive
systems can be used either individually or in
parallel.
The electric motor is supplied its energy from
a hybrid battery fitted in the tunnel console.
The hybrid battery can be charged in a wall
socket, or in a special charging station. The
internal combustion engine can also charge
the hybrid battery with a special high-voltage
generator.
Both the internal combustion engine and elec-
tric motor can generate motive force directly
to the wheels. An advanced control system
combines the properties of both drive systems
in order to provide optimum driving economy.
Hybrid battery - The function of the hybrid
battery is to store energy. It receives
energy when charging from the mains
power circuit, during regenerative braking
or from the high-voltage generator. It pro-
vides energy for electric operation as well
as for temporarily operating the electric air
conditioning during the preconditioning of
the passenger compartment.
Internal combustion engine - The internal
combustion engine starts when the
energy level in the hybrid battery is insuffi-
cient for the engine power that the driver
requests.
High voltage generator
7
- Charges the
hybrid battery. Starter motor for the inter-
nal combustion engine. Can support the
6
All Wheel Drive
7
CISG (Crank Integrated Starter Generator) - Combined high-voltage generator and starter motor.
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