BMW I01 Product Information page 122

I01￿High-voltage￿Components
6.￿Charging￿the￿High-voltage￿Battery
Index
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5
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7
8
9
10
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6.3.2.￿Charging￿cable
This￿charging￿cable￿for￿the￿I01￿is￿always￿designed￿for￿single-phase￿supply,￿in￿line￿with￿the￿charging
socket￿at￿the￿vehicle￿(phase L1￿and￿neutral￿conductor N)￿and￿always￿includes￿the￿protective￿earth (PE),
as￿well￿as￿the￿pilot￿line.￿The￿ground￿is￿grounded￿via￿the￿protective￿earth.￿Using￿the￿pilot￿line￿the
correct￿connection￿to￿the￿AC￿voltage￿network￿and￿its￿maximum￿available￿charging￿current￿level￿can
be￿identified￿or￿transmitted.￿In￿the￿connector￿an￿ohmic￿resistor￿is￿also￿installed￿between￿the￿proximity
connection￿and￿the￿protective￿earth.￿The￿resistance￿value￿specifies￿which￿maximum￿current￿level
is￿allowed￿for￿the￿charging￿cable￿used￿(dependent￿on￿the￿line￿cross-section).￿The￿assignment￿of
resistance￿–￿current￿level￿is￿specified￿in￿the￿standard￿IEC 61851.￿Using￿the￿resistance￿in￿the￿proximity
line￿the￿LIM￿in￿the￿vehicle￿can￿identify￿whether￿the￿charging￿cable￿is￿properly￿connected￿and￿which
current￿level￿is￿allowed￿for￿this￿charging￿cable.￿The￿convenience￿charging￿electronics￿applies￿a
measured￿voltage￿and￿calculates￿which￿value￿the￿resistance￿in￿the￿proximity￿line￿has.
The￿connection￿with￿the￿AC￿voltage￿network￿is￿done￿via￿a￿fixed￿charging￿station,￿which￿includes￿the
Electric￿Vehicle￿Supply￿Equipment.￿The￿appropriate￿charging￿cable￿for￿this￿purpose￿is￿solely￿the
electrical￿connection￿between￿charging￿station￿and￿charging￿socket￿at￿the￿vehicle.
The￿charging￿cable￿for￿AC￿Charging￿at￿7.4 kW￿(standard￿equipment￿in￿US)￿and￿AC￿charging
at￿3.7 kW￿(Standard￿equipment￿in￿Europe)￿have￿the￿same￿connector￿for￿the￿connection￿at￿the
vehicle.￿The￿connectors￿are￿only￿distinguished￿by￿their￿differing￿resistances￿in￿the￿proximity
line,￿appropriate￿to￿the￿current￿carrying￿capacity￿of￿the￿charging￿cable.￿The￿following￿graphic
shows￿the￿structure￿and￿the￿connections￿of￿this￿connector.
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Explanation
Electrical￿Digital￿Motor￿Electronics￿(EDME)
High-voltage￿battery￿unit
Battery￿management￿electronics￿(SME)
Charging￿interface￿module￿(LIM)
Electric￿motor￿for￿the￿connector￿fastener
Electric￿motor￿for￿the￿central￿locking￿system￿of￿the￿charging￿socket￿cover
Locator￿and￿status￿lighting
Range￿Extender￿Electrical￿Machine￿Electronics￿(REME)
Range￿extender￿electrical￿machine
Convenience￿charging￿electronics￿(KLE)
Charging￿socket￿at￿the￿vehicle
Electrical￿machine￿electronics￿(EME)