BMW I01, Информация о продукте

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I01�High-voltage�Components
3.�Electric�Motor
16
Position Meaning Index Explanation
1 Engine�developer G
I
J
Electrical�machine�in/at�the
transmission
Electrical�machine,�BMW
Electrical�machine,�external
2 Engine�type�(outer
diameter�of�stack�of
sheets)
A
B
C
D
E
<�200 mm
>�200 mm�<�250 mm
>�250 mm�<�300 mm
>�300 mm
Outer�rotor�with�small�diameter
3 Change�to�the�basic
engine�concept
0�or�1
2�to�9
Basic�engine
Changes,�e.g.�variation�of�sheet
cut�(even�numbers�reserved�for
motorbikes,�odd�numbers�for
passenger�cars)
4 Machine�type�(engine
procedure)
N
U
O
P
R
S
T
Asynchronous�machine
Direct�current�machine
Axial�flow�machine
Permanently�excited�synchronous
machine
Switched�reluctance�machine
Electrically�excited�synchronous
machine
Transverse�flow�machine
5�+�6 Torque 0�to�... e.g.�25�=�250 Nm
7 Type�test�concerns
(changes�that�require
a�new�type�test)
A
B�to�Z
Standard
Acc.�to�requirements,�e.g.
adaptations�to�length�and�coils
For�the�electrical�machine�EMP242.130.01.250(300)-A3-X1�the�engine�identification�looks�like�this:
IB1P25B.
3.1.2.�Technical�data
The�electrical�machine�in�the�I01�is�a�synchronous�machine.�Its�general�structure�and�operating
principle�correspond�to�those�of�a�permanently�excited�synchronous�machine�with�internal�rotor:
The�rotor�is�located�inside�and�is�equipped�with�permanent�magnets.�The�stator�is�ring-shaped�and
arranged�outside�around�the�rotor.�It�is�formed�by�the�3-phase�coils�which�are�housed�in�the�grooves�of
the�stator.�If�a�3-phase�AC�voltage�is�applied�to�the�stator�coils,�they�generate�a�rotating�magnetic�field,
which�"pulls"�the�magnets�in�the�rotor�(in�engine�operation).