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The internal combustion engine powers the
vehicle. The electric motor is being operated as
an alternator, e.g. in overrun mode and when
braking (
page 269). The kinetic energy of the
Y
vehicle is converted into electrical energy. The
high-voltage battery is charging.
The arrows for the energy flow are shown in
green.
Driving using the internal combustion
engine and charging the high-voltage bat-
tery
The internal combustion engine powers the
vehicle. The internal combustion engine also
drives the electric motor. The electric motor is
operating as an alternator. The high-voltage bat-
tery is charging.
The arrows for the energy flow are shown in
white.
Driving using the internal combustion
engine and discharging the high-voltage
battery
The internal combustion engine powers the
vehicle. If the vehicle is approaching a downhill
gradient with a high potential for energy recu-
peration, the charge status of the high-voltage
Plug-in hybrid operation
battery is intentionally kept low or intentionally
reduced.
The arrows for the energy flow are shown in
white.
Further information on the route-based operat-
ing strategy (
page 269).
Y
Electric operation mode
The electric motor powers the vehicle. The high-
voltage battery supplies the electric motor with
electrical energy.
The arrows for the energy flow are shown in
green.
Electric operation mode and charging the
high-voltage battery
The electric motor is being operated as an alter-
nator, e.g. in overrun mode and when braking.
The kinetic energy of the vehicle is converted
into electrical energy. The high-voltage battery
is charging.
The arrows for the energy flow are shown in
green.
265
Z
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