BMW I01, Информация о продукте

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I01�High-voltage�Components
6.�Charging�the�High-voltage�Battery
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Only�when�the�communication�between�the�vehicle�(LIM)�and�Electric�Vehicle�Supply�Equipment�has
been�started�successfully�via�the�pilot�line,�is�the�charging�voltage�applied�to�the�phase L1.�This�also
gives�further�protection�for�customers�and�Service�employees�against�the�dangers�of�electricity.
With�this�stationary�version�of�the�EVSE�the�lines�can�transmit�up�to�7.4 kW.�The�AC/DC�converter
in�the�convenience�charging�electronics�(3.7 kW)�and�in�the�electrical�machine�electronics�(3.7 kW)
ensure�the�conversion�of�the�single-phase�AC�voltage�to�the�direct�current�voltage�required�for
charging�the�high-voltage�battery.�The�duration�of�the�full�charge�of�an�empty�high-voltage�battery�of
the�I01�can�then�be�reduced�to�three�to�four�hours.
6.3.3.�Convenience�charging�electronics
The�convenience�charging�electronics�(KLE)�is�installed�in�the�rear�of�the�I01,�in�an�area�separated�from
the�luggage�compartment.
Installation�location�of�the�convenience�charging�electronics
The�main�task�of�the�convenience�charging�electronics�(KLE)�during�AC�charging�at�7.4 kW�is�the
conversion�of�the�AC�voltage�to�direct�current�voltage.�A�rectifier�switching�in�the�KLE�comprising�two
modules�completes�this�task.�These�power�electronics�modules�are�controlled�by�a�control�unit,�which
also�bears�the�same�name:�Convenience�charging�electronics�(KLE).
The�convenience�charging�electronics�is�designed�so�it�can�provide�a�maximum�electrical�power�of
3.7 kW�on�the�output�side.�Together�with�the�3.7 kW�from�the�standard�power�electronics�of�the�EME,
this�is�sufficient�in�the�I01�to�fully�charge�the�high-voltage�battery�(at�optimal�marginal�conditions)�in
three�to�six�hours.�This�short�charging�time�means�enhanced�comfort�for�the�customer�when�using�the
I01.�For�this�reason,�this�charging�electronics�was�called�"convenience�charging�electronics".
The�AC�voltage�is�fed�to�the�vehicle�or�the�convenience�charging�electronics�via�a�single-phase�supply.
The�input�voltage,�which�can�be�processed�by�the�convenience�charging�electronics,�may�be�in�the
following�range:�100 V�–�240 V,�50 Hz�or�60 Hz.�At�the�output,�which�is�separated�galvanically�from
the�input,�the�convenience�charging�electronics�supplies�an�electronically�adjustable�direct�current
voltage�or�an�electronically�adjustable�direct�current�flows.�The�specifications�for�the�output�voltage
and�the�output�current�come�from�the�function�"High-voltage�power�management"�in�the�EME�control
unit.�The�values�are�calculated�and�adjusted�by�the�KLE�so�that�the�high-voltage�battery�is�optimally
charged�and�the�other�consumers�in�the�I01�are�supplied�with�sufficient�electrical�energy.