BMW 3: Design
The main components of the electrical machine are:
- Rotor and stator
- Connections
- Rotor position sensor
- Cooling
The hybrid system in the G20 PHEV is a so-called parallel hybrid system. Both the combustion engine and the electrical machine are mechanically coupled with the sprockets. For vehicle drive it is possible to use both drive systems individually and at the same time.
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Rotor and stator
Rotor and stator, electrical machine
Stator
Permanent magnets
Rotor
Hollow shaft with outer basket of separation clutch
The electrical machine in the G20 PHEV is structured as an inner rot
Connections
Connections, electrical machine
Transmission bell housing
Temperature sensor
Coolant ducts
Connection for coolant (transmission oil)
Electrical connection, rotor position sensor
High-voltage c
Sensors
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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Selector lever positions
Drive mode D
Selector lever position for normal vehicle operation.
All gears for forward travel are activated automatically.
R is reverse
Engage selector lever position R only when the
vehicle is stationary.
Neutral N
The vehicle may be pushed or roll without power,
for instance in vehicle washes i
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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