I01�High-voltage�Components
6.�Charging�the�High-voltage�Battery
107
Index
Explanation
5
Body�Domain�Controller�(BDC)
6
Terminal�status,�driving�readiness�switched�off
7
Dynamic�Stability�Control�(DSC)
8
Vehicle�speed
9
Electrical�Digital�Motor�Electronics�(EDME)
10
Status�of�parking�lock�(engaged/disengaged),�power�requirement�in�the�high-
voltage�vehicle�electrical�system
11
Charging�interface�module�(LIM)
12
Charging�socket�at�the�vehicle
13
Status�of�the�charging�socket�cover�and�the�charging�plug
14
Electrical�machine�electronics�(EME)
15
Actual�value�of�the�set�charging�power,�charging�voltage�and�charging�current
level,�charging�release
16
Electrical�Digital�Motor�Electronics�(EDME)
17
Information�whether�the�charging�cable�is�connected�and�the�charging
procedure�is�active
18
Charging�socket
19
Activation�of�LEDs�for�locator�lighting�and�charging�status�display,�status�of�the
charging�socket�cover.
20
Instrument�cluster
21
Signals�for�the�display�of�charging�information
Communication�with�EVSE�via�pilot�and�proximity�line
The�pilot�line�and�the�proximity�line�are�realized�as�simple�signal�lines.�These�signal�lines�are�shielded
and�end�at�a�connector�in�the�charging�interface�module�LIM.
Via�the�proximity�line�the�connection�of�the�charging�plug�in�the�charging�socket�at�the�vehicle�is
identified,�as�well�as�the�maximum�current�carrying�capacity�of�the�charging�cable�determined.�In�the
connector�of�the�charging�cable�there�is�an�ohmic�resistor�between�the�proximity�connection�and�the
protective�earth.�The�LIM�applies�a�measured�voltage�and�calculates�which�value�the�resistance�in
the�proximity�line�has.�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.
The�pilot�line�is�required�for�the�determination�and�transmission�of�the�maximum�available�charging
current�level.�The�pilot�signal�is�a�bipolar�rectangle�signal�(-12 V�to�+12 V).�The�voltage�and�the�duty
cycle�are�used�for�the�communication�of�different�statuses�between�EVSE�and�I01:
•
Electric�vehicle�is�ready�to�charge�(Yes/No)
•
Fault�present�(Yes/No)
•
Maximum�charge�current�which�can�be�provided�by�the�AC�voltage�network.
