BMW I01 Product Information page 184

I01￿High-voltage￿Components
13.￿Operating￿Strategy
The￿operating￿strategy￿has￿the￿task￿of￿maximizing￿the￿service￿life￿of￿the￿high-voltage￿battery￿and
protecting￿it￿against￿damage￿during￿operation.￿All￿customer￿requirements￿when￿driving￿and￿during
charging￿should￿also￿be￿fulfilled.￿The￿behavior￿of￿the￿electric￿motor￿in￿the￿event￿of￿a￿fault￿is￿also￿an
element￿of￿the￿operating￿strategy.￿The￿EDME￿is￿the￿master￿control￿unit￿for￿the￿operating￿strategy.
13.1.￿Operating￿strategy￿with￿pure￿electric￿drive
The￿I01￿is￿designed￿as￿a￿vehicle￿with￿a￿pure￿electric￿drive￿for￿urban￿mobility.￿The￿high-voltage￿battery
and￿the￿electrical￿machine￿deliver￿impressive￿vehicle￿performances:
• Range￿>￿160 km￿(at￿20 °C)￿/￿100￿mi￿(at￿68 °F)
• Maximum￿speed￿150 km/h/￿93￿mph￿(short-term,￿3￿minutes)￿or￿120 km/h/74.5￿mph
(continuous)
• Acceleration￿from￿0-100 km/h￿in￿7.2￿s
Before￿a￿drive￿torque￿is￿applied,￿the￿EDME￿must￿check￿whether￿the￿driving￿readiness￿is￿established.
The￿EDME￿also￿queries￿whether￿all￿subsystems￿of￿the￿electrical￿drive￿train￿are￿functioning￿trouble-
free,￿which￿is￿also￿a￿prerequisite￿for￿the￿provision￿of￿a￿drive￿torque.￿Finally,￿the￿EDME￿still￿has￿to
consider￿the￿available￿electrical￿power￿for￿the￿electric￿motor￿which￿is￿primarily￿determined￿by￿the
condition￿of￿the￿high-voltage￿battery.￿The￿SME￿control￿unit￿communicates￿this￿condition￿to￿the￿EDME
control￿unit￿via￿corresponding￿bus￿signals.￿As￿a￿result￿of￿these￿checks￿the￿EDME￿identifies￿whether
and￿in￿what￿scope￿the￿drive￿torque￿can￿be￿provided.￿In￿the￿case￿of￿fault￿statuses￿or￿in￿the￿event￿of
limited￿availability,￿the￿EDME￿issues￿an￿appropriate￿Check￿Control￿message￿via￿the￿instrument￿cluster.
The￿statuses￿of￿the￿operating￿strategy￿relevant￿for￿the￿customer￿and￿the￿Service￿employee￿are￿listed
below￿and￿described￿briefly.
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