BMW I01 Product Information page 188

I01￿High-voltage￿Components
13.￿Operating￿Strategy
Index
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
11
12
Up￿to￿a￿state￿of￿charge￿of￿the￿high-voltage￿battery￿of￿6.5%￿relative￿(displayed￿SOC)￿a￿I01￿with￿REX
behaves￿in￿exactly￿the￿same￿way￿as￿a￿I01￿with￿a￿pure￿electric￿motor.
If￿the￿state￿of￿charge￿of￿the￿high-voltage￿battery￿drops￿below￿6.5%￿relative,￿the￿REX￿combustion
engine￿is￿started￿automatically.￿The￿automatic￿engine￿start-stop￿function￿is￿active￿up￿to￿a￿state￿of
charge￿of￿3.5%.￿Driving￿without￿restrictions￿is￿possible￿for￿the￿state￿of￿charge￿between￿3.5%￿and
1.9%,￿but￿without￿automatic￿engine￿start-stop￿function.￿Only￿when￿the￿state￿of￿charge￿of￿the￿high-
voltage￿battery￿falls￿below￿1.9%,￿does￿the￿driving￿with￿restricted￿drive￿power￿takes￿effect.￿At￿a￿state￿of
charge￿of￿0.4%￿a￿warning￿message￿with￿range￿of￿one￿kilometer￿is￿issued.￿Driving￿is￿no￿longer￿possible
below￿this￿SOC￿value.￿In￿the￿high-voltage￿battery￿there￿is￿an￿energy￿reserve￿so￿that￿it￿is￿possible￿to
restart￿the￿REX￿combustion￿engine￿or￿so￿that￿the￿high-voltage￿battery￿does￿not￿discharge￿fully￿over￿an
extended￿period.
After￿refueling￿the￿I01￿with￿REX￿driving￿without￿restrictions￿is￿again￿possible.
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Explanation
Range￿in￿which￿driving￿without￿restrictions￿is￿possible
Range￿in￿which￿driving￿without￿restrictions￿is￿possible￿and￿automatic￿engine
start-stop￿function￿is￿active
Range￿in￿which￿driving￿without￿restrictions￿is￿possible￿and￿automatic￿engine
start-stop￿function￿is￿not￿active￿(REX￿is￿permanently￿on)
Range￿in￿which￿driving￿with￿restricted￿drive￿power￿takes￿place
Range￿with￿safety￿reserve￿for￿REX￿start
Range￿in￿which￿driving￿is￿not￿possible
Calculated￿state￿of￿charge￿of￿the￿high-voltage￿battery￿(State￿of￿Charge￿=￿SOC)
First￿automatic￿REX￿start
Warning￿for￿range￿of￿less￿than￿1 km
Axis￿for￿relative￿SOC￿values
Axis￿for￿absolute￿SOC￿values
SOC￿of￿the￿high-voltage￿battery￿0%￿absolute
SOC￿of￿the￿high-voltage￿battery￿0.4%￿relative
SOC￿of￿the￿high-voltage￿battery￿1.9%￿relative
SOC￿of￿the￿high-voltage￿battery￿3.5%￿relative
SOC￿of￿the￿high-voltage￿battery￿6.5%￿relative,￿or￿15.7%￿absolute
SOC￿of￿the￿high-voltage￿battery￿75%￿relative
SOC￿of￿the￿high-voltage￿battery￿100%￿relative