BMW I01 Product Information page 62

I01￿High-voltage￿Components
4.￿Electrical￿Machine￿Electronics
• 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
1
2
3
4
5
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:
56
Explanation
Electrical￿machine￿electronics
Screw￿connection￿for￿high-voltage￿connection,￿stator￿coil 1
Screw￿connection￿for￿high-voltage￿connection,￿stator￿coil 2
Screw￿connection￿for￿high-voltage￿connection,￿stator￿coil 3
Low-voltage￿connector