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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Coolant pump
The layout and function of the coolant pump have been revised and adapted to
match the cooling
concept of the B46TU/B48TU engines.
Coolant pump
Pressure relief valve closed (pressure < 2.2 bar / 32 psi)
Pressure relief valve opened (pressure > 2.2 bar /
Overview
General information
The Teleservices, intelligent emergency call or
ConnectedDrive Services features are required
to use the services and applications described
here.
The content and scope of the services that are
available may vary by country. Therefore, it is
possible that some of the services an
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