BMW 3: Connections
The connections at the Electrical Machine Electronics can be divided into four categories:
- Low-voltage connections
- High-voltage connections
- Connection for potential compensation line
- Connections for coolant lines.
Connections of the Electrical Machine Electronics with lines
- Connection for potential compensation line
- Low-voltage connector
- High-voltage cable (DC) to the high-voltage battery unit
- High-voltage connection to convenience charging electronics
- Output, DC/DC converter -12 V
- High-voltage cable (AC) to the electrical machine
- Coolant feed line
- Coolant return line
- Output, DC/DC converter +12 V
- Ventilation
- Low-voltage connections
- High-voltage connections
- High-voltage cables
- Removing the flat high-voltage connector
- Removing the round high-voltage connector
- Connection for potential compensation lines
READ NEXT:
Low-voltage connections
In the low-voltage connector at the Electrical Machine Electronics the
following lines and signals are
combined:
Terminal 30 from the hybrid power distribution box
Terminal 30 from the f
High-voltage connections
At the Electrical Machine Electronics, there is a total of three high-voltage
connections to connect the
lines for other high-voltage components. The connections for the electric A/C
compressor and
High-voltage cables
The high-voltage cables connect the high-voltage components and are
identified by orange cable
sleeves. The manufacturers of hybrid cars have agreed on a uniform
identification of the high-voltage
c
SEE MORE:
Overview
With the G20 PHEV the already familiar Generation 4.0 high-voltage battery
unit with the designation
SP41 is used. The lithium-ion battery has the same basic design as the
Generation 3.0 SP06 high-
voltage battery unit. The same can be found in the G12 PHEV and also in the G30 PHEV.
The
General information
Electronic control devices are installed in the vehicle.
Electronic control units process data they
receive from vehicle sensors, self-generate or
exchange with each other. Some control units
are necessary for the vehicle to function safely or
provide assistance during driving, for instance
driver
© 2019-2025 Copyright www.bmw3g20.com
