I01�High-voltage�Components
4.�Electrical�Machine�Electronics
56
•
Electromechanical�parking�lock:�Voltage�supply�and�signal�of�the�position�sensors,�voltage
supply�of�the�solenoid�and�the�electric�motor
•
Brake�vacuum�sensor�(supply�and�evaluation�of�a�pressure-dependent�resistance)
•
Voltage�supply�of�the�electrical�vacuum�pump.
These�lines�and�signals�have�relatively�low�current�levels.�The�electrical�machine�electronics�is
connected�to�the�12 V�vehicle�electrical�system�(terminals�30�and�31)�via�two�separate�low-voltage
connections�and�lines�with�large�cross-section.�Via�this�connection�the�DC/DC�converter�in�the
electrical�machine�electronics�provides�the�entire�12 V�vehicle�electrical�system�with�energy.�These
two�lines�are�not�connected�to�the�electrical�machine�electronics�via�a�plug�connection,�but�a�screw
connection.
The�connections�of�the�electrical�machine�electronics�to�the�electrical�machine�are�not�visible�from�the
outside.�They�are�located�under�a�lid�on�the�right�side�of�the�electrical�machine.
Electrical�connection�of�the�electrical�machine�electronics�to�the�electrical�machine
Index
Explanation
1
Electrical�machine�electronics
2
Screw�connection�for�high-voltage�connection,�stator�coil 1
3
Screw�connection�for�high-voltage�connection,�stator�coil 2
4
Screw�connection�for�high-voltage�connection,�stator�coil 3
5
Low-voltage�connector
The�screw�connections�for�the�supply�of�the�stator�coils�(high-voltage�connections)�and�a�plug
connection,�via�which�the�following�signals�are�transmitted,�are�located�under�the�lid:
