BMW I01, Информация о продукте

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I01�High-voltage�Components
3.�Electric�Motor
23
Index Explanation
1 Outer�housing
2 Housing�cover
3 Connection�for�rotor�position�sensor
4 Temperature�sensor�in�the�stator
5 High-voltage�connection�U
6 High-voltage�connection�V
7 High-voltage�connection�W
8 Rotor�position�sensor
The�housing�cover�must�be�replaced�after�disassembly�
The�screws�of�the�high-voltage�connections�(U,�V,�W)�must�be�replaced�after�each�disassembly.
The�rotor�position�sensor�is�secured�at�the�stator�of�the�electrical�machine�and�works�according�to
the�tilt�sensor�principle.�There�are�three�coils�in�the�rotor�position�sensor.�A�defined�AC�voltage�is
fed�to�one�of�the�coils.�The�other�two�coils�are�each�moved�90°.�The�voltages�induced�in�these�coils
provide�information�about�the�angle�setting�of�the�rotor.�The�rotor�position�sensor�is�mounted�by�the
manufacturer�of�the�electrical�machine�at�the�corresponding�alignment�so�that�it�is�already�correctly
adjusted.�A�precise�adjustment�of�the�rotor�position�sensor�is�effected�during�production,�after�which
the�electrical�machine�and�electrical�machine�electronics�are�joined.�The�adjustment�values�are�stored
in�the�control�unit�of�the�electrical�machine�electronics.
Neither�an�adjustment�nor�a�replacement�of�the�rotor�position�sensor�can�be�performed�in�BMW
Service.
If�the�electrical�machine�or�the�electrical�machine�electronics�are�replaced,�the�code�for�the�angle�must
be�noted�via�diagnosis�in�the�electrical�machine�electronics.�The�code�for�the�angle�can�be�found�on
the�type�plate�of�the�electrical�machine.
The�electrical�connection�for�the�sensors�of�the�electrical�machine�and�the�electrical�machine
electronics�is�shown�in�a�wiring�diagram�in�the�chapter�"Electrical�interfaces".