BMW 3 Owners & Service Manuals

BMW 3: Connections

BMW 3 Series G20 (2018-2026) Training manual / Electrical Machine / Design / Connections

Design
Connections, electrical machine

  1. Transmission bell housing
  2. Temperature sensor
  3. Coolant ducts
  4. Connection for coolant (transmission oil)
  5. Electrical connection, rotor position sensor
  6. High-voltage connection

There are four connections of the electrical machine on the housing of the automatic transmission for the following components:

  • Temperature sensor
  • Cooling (by transmission oil)
  • Rotor position sensor
  • High-voltage cables

High-voltage connection

Design
High-voltage connection, electrical machine

  1. High-voltage connection
  2. High-voltage connector

Electrical energy is fed to the coils of the electrical machine via the high-voltage connection. The high- voltage connection connects the Electrical Machine Electronics to the electrical machine via a three- phase, shielded high-voltage cable.

The high-voltage connectors are screwed on to the Electrical Machine Electronics and the electrical machine.

High-voltage cables must not be repaired. In the event of damage, the line must always be replaced!

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    Sensors, electrical machine Temperature sensor Rotor of the rotor position sensor Stator of the rotor position sensor So that the voltages for the coils in the stator can be correctly calculated

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     Cooling

    To guarantee the thermal operating safety of the electrical machine in every situation, it is cooled with coolant in the G20 PHEV. For this, the electrical machine is integrated in the coolant

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     Setting the speed

    Maintaining and storing the speed Press the rocker switch up or down once while the system is interrupted. The system will be activated. The current speed is maintained and stored as desired speed. The stored speed is displayed on the speedometer. DSC Dynamic Stability Control is switched on, if

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    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

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