On-board charger
34
Electrical system
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451
Powerline Gateway (PLGW)
The Powerline Gateway is integrated in the on-
board charger for communication via the power
lines (PLC - Powerline Communication). This can
connect the vehicle both to an intelligent
charging station and to the Daimler Vehicle
Backend (via Internet). PLC as per the Homeplug
AV-Standard is used here. Communicationtakes
place via phase L1 and the neutral wire N.
The Powerline Gateway can establish a connection
to the Daimler Vehicle Backend and provide
vehicle data for the Vehicle Homepage. To do so,
the vehicle must be connected to the Internet via
Powerline Communication.
The customer requires a commercially available
Powerline socket adapter based on the "Home-
Plug AV" standard for this purpose. This must be
equipped with an encryption button in order to be
able to configure it for communication with the
vehicle. The adapter is connected to the power
grid and the Internet connection of the customer
e.g. by connection to their DSL router.
Configuration of the PLGW is initiated by entering
the appropriate information on the instrument
cluster and completed by pressing the encryption
button on the Powerline socket adapter.
If the customer already has a Powerline
networked installed, the vehicle can also be inte-
grated into this network.
i Note
Powerline Communication (PLC) is a generic term
for the transmission of data over power lines.
Here, current-conducting lines are used simul-
taneously both for power supply purposes and
for data transfer.
Smart Charging
The PLGW is used to integrate the smart fortwo elec-
tric drive into intelligent charging infrastructure.
This means that the charging process of the vehicle
is adjusted to the power quantity available in the
grid e.g. in order to make optimal use of power from
renewable sources.
For this purpose, information about the power quan-
tity available and its cost is transmitted to the
vehicle via the charging cable. A charging profile is
created based on this data, which ensures that the
battery is fully charged by the set departure time
but at the lowest cost.
Another functionality of Smart Charging is
Plug&Charge.
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