BMW 3: Bus Systems
BMW 3 Series G20 (2018-2025) Training manual / Bus Systems
The bus systems of the G20 PHEV are based on the bus systems of the G20. All the main and sub-bus systems of the G20 are also used in the G20 PHEV. Compared to the bus systems of the G20, some control units have been added, adapted or not installed. The resulting bus overview of the G20 PHEV is as follows:
- New schematic diagram
- New control units
- Electrical machine electronics (EME)
- Convenience charging electronics (KLE)
- Vehicle Sound Generator (VSG)
- Adapted control units
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New schematic diagram
The representation of the individual bus systems and their designations have
been adapted to the
representation and the designation of the ISTA workshop information system.
The following table provi
New control units
Compared with the G20, a number of new control units have been installed in
the G20 PHEV.
Electrical machine electronics (EME)
Electrical machine electronics
The function of the Electrical Machine Electronics (EME) is to activate and
regulate the permanently
excited synchronous machine in the high-voltage vehicle electrical
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Warning function
Light in the exterior mirror
Acute warning
If there is a risk of collision, the light in the exterior
mirror flashes and the steering wheel vibrates.
A Check Control message is displayed at
the same time.
If necessary, an active steering intervention then
takes place to prevent collisions and main
IROX coating - Crankshaft drive
Detailed magnification of the IROX coating
IROX-coated bearing shell
Oil film
IROX coating
Bearing shell
Binding resin
Hard particle
Solid lubricant
The IROX coating is applied to a conventional bearing shell. It consists of a
binding resin matrix made
of polyamide-imide with embedded har
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