BMW 3 Owners & Service Manuals

BMW 3: Electrical Machine Electronics

BMW 3 Series G20 (2018-2025) Training manual / Electrical Machine Electronics

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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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 STANDARD

With a sufficient state of charge of the high-voltage battery unit, all-electric driving of the vehicle with maximum power of the electric drive is possible for up to 41 miles (66 km). The maximum speed in this case is 87 mph (140 km/h). In the STANDARD variant, all ECO PRO setting

 Tasks

The Electrical Machine Electronics is made up internally of three subcomponents: Bidirectional DC/AC converter Unidirectional DC/DC converter EME control unit The Electrical Machine Electronics performs the following functions using the subcomponents mentioned: Torque restriction of the dri

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