BMW 3: Electrical Machine Electronics
BMW 3 Series G20 (2018-2026) Training manual / Electrical Machine Electronics
- Introduction
- Connections
- 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
- Tasks
- DC/DC converter
- Power electronics for activation of the electrical machine
- High-voltage power management
- Voltage supply for other high-voltage consumers
- Cooling
- Antifreeze and corrosion inhibitor
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Introduction
The Electrical Machine Electronics (EME) is primarily used as control
electronics for the electrical
machine. It is also responsible for converting the direct current voltage from
the high-voltage b
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
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
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Displays and control
elements
In the vicinity of the steering
wheel
Light switch element
Turn signal indicator, high beams
Instrument cluster
Wipers
Indicator/warning lights
Instrument cluster
The indicator/warning lights can light up in a variety
of combinations and colors.
Several of the lights are checked for proper f
Warning function
Light in the exterior mirror
Prewarning
The dimmed light in the exterior mirror indicates
when there are vehicles in the blind spot or approaching
from behind.
Acute warning
If the turn signal is switched on while a vehicle is
in the critical zone, the steering wheel vibrates
briefly and the light
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