BMW I01, Информация о продукте

Страница: 122 / 190

I01�High-voltage�Components
6.�Charging�the�High-voltage�Battery
116
Index Explanation
1 Electrical�Digital�Motor�Electronics�(EDME)
2 High-voltage�battery�unit
3 Battery�management�electronics�(SME)
4 Charging�interface�module�(LIM)
5 Electric�motor�for�the�connector�fastener
6 Electric�motor�for�the�central�locking�system�of�the�charging�socket�cover
7 Locator�and�status�lighting
8 Range�Extender�Electrical�Machine�Electronics�(REME)
9 Range�extender�electrical�machine
10 Convenience�charging�electronics�(KLE)
11 Charging�socket�at�the�vehicle
12 Electrical�machine�electronics�(EME)
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.