Introduction - BMW I01 Product Information

I01￿High-voltage￿Components
6.￿Charging￿the￿High-voltage￿Battery
6.1.￿General￿information￿on￿charging
6.1.1.￿Introduction
The￿"charging"￿procedure￿for￿an￿electric￿vehicle￿corresponds￿to￿"refueling￿"￿a￿conventionally￿driven
vehicle.￿Accordingly,￿in￿this￿chapter￿"charging"￿means:
• Charging￿the￿high-voltage￿battery￿in￿the￿vehicle
• while￿at￿standstill￿(not￿through￿brake￿energy￿regeneration),
• by￿supply￿of￿electrical￿energy,
• which￿is￿provided￿by￿an￿AC￿voltage￿network￿outside￿the￿vehicle
• and￿is￿fed￿to￿the￿vehicle￿via￿a￿charging￿cable.
As￿a￿charging￿cable￿is￿used,￿one￿also￿refers￿to￿conductive￿(grid-bound)￿charging.￿The￿inductive
charging￿is￿not￿possible￿at￿the￿I01.￿It￿is￿still￿undergoing￿research￿and￿development.
Components￿inside￿and￿outside￿the￿vehicle￿are￿required￿for￿charging.￿In￿the￿vehicle￿a￿charging￿socket
and￿power￿electronics￿are￿required￿for￿the￿voltage￿conversion.￿Outside￿the￿vehicle￿a￿device￿which
performs￿the￿protection￿and￿control￿functions￿is￿needed,￿in￿addition￿to￿the￿AC￿voltage￿network￿and￿a
charging￿cable.￿This￿device￿is￿called￿an￿"Electric￿Vehicle￿Supply￿Equipment￿(EVSE)"￿in￿the￿standards
and￿in￿development.￿The￿following￿graphic￿shows￿the￿components￿for￿the￿charging￿of￿the￿high-voltage
battery￿inside￿and￿outside￿the￿electric￿vehicle￿and￿compares￿them￿to￿the￿components￿needed￿for
refueling￿in￿a￿conventional￿vehicle.
Components￿for￿refueling￿the￿vehicle￿and￿charging￿the￿high-voltage￿battery
Index Refueling￿the￿vehicle
1 Filling￿station
2 Petrol￿pump
3 Fuel￿line￿between￿fuel￿pump￿nozzle
and￿gasoline￿pump
4 Fuel￿pump￿nozzle
88
Charging￿the￿high-voltage￿battery
AC￿voltage￿network
Electric￿Vehicle￿Supply￿Equipment￿(e.g.
wallbox)
Charging￿cable
Vehicle￿connector￿at￿charging￿cable