BEV operating modes
Electric driving
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Power electronics
High-voltage
battery
supplies power
Electrical driving with a purely electrical automobile
is configured in exactly the same way as a full hybrid
vehicle: the high-voltage battery supplies energy to
the power electronics. The power electronics convert
the direct voltage into an alternating voltage to drive
the electric motor.
Electric motor/generator runs as drive unit
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Regenerative braking
High-voltage
battery
is charged
If the electric vehicle “coasts” (the vehicle moves
without drive torque from the electric motor), part of
the kinetic energy is fed into the high-voltage battery
by the electric motor that functions as an alternator.
Electric motor/generator runs as alternator
Climate control while vehicle is stationary
High-voltage heating system
If, for example, the electric vehicle is standing in a
traffic jam, no output is required from the electric
motor/generator. The comfort requirements of the
occupants are met with a high-voltage heating system
and a high-voltage air conditioner compressor.
High-voltage air conditioner
compressor
High-voltage
battery
supplies power
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External charging
Charging
contact
The high-voltage battery is charged via the charging
contact on the vehicle. When the external charging
source is connected, the vehicle is charged
High-voltage
battery
is charged
automatically up to the previously set value. The
process is ended automatically. If electrical
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consumers are used during the charging process,
they will be supported by the charging voltage.
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