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STARTING AND DRIVING
444
Drive systems
Volvo Twin Engine combines an internal com-
bustion engine with an electric motor.
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.
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. This receives
energy by charging from the power grid or
by means of regenerative braking. 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.
Super condenser – Provides energy to
start the car, which saves the regular 12 V
battery.
Electric motor - Powers the car in electric
operation. If necessary, provides extra tor-
que and power during acceleration. Recy-
cles brake energy to electrical energy.
Related information
•
General information about Twin Engine
(p. 398)
•
Starting and stopping the combustion
engine in Twin Engine (p. 445)
•
Drive modes (p. 445)
•
Gearbox (p. 438)
•
Factors that affect range when running on
electricity (p. 452)
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