BMW 3: Introduction
Although the high-voltage battery unit of the G20 PHEV can also be partially
charged by energy
recovery via the electrical machine, the "normal" charging procedure takes place
when the G20 PHEV
is connected to the AC voltage network of the local power supply company. Energy
is taken from the
alternating current voltage network and fed to the direct current voltage
high-voltage electrical system.
To allow this to happen, the G20 PHEV can be connected to an AC charge station
or charged via the
charging cable.
The charging procedure is never carried out with the maximum possible charge
current. At the start,
charging takes place with constant current. Switchover to constant voltage takes
place towards
the end. The actual charging time is increased as a result, and the service life
of the battery cells is
extended.
If the G20 PHEV is connected to an AC charging station, the maximum possible
charging power of
approximately 3.7 kW is also available (provided the AC charging station is
designed for this).
System wiring diagram

System wiring diagram for AC charging with 3.7 kW
- Electric A/C compressor (EKK)
- Electrical Heating (EH)
- Electric motor
- Electric Motor Electronics (EME)
- Battery management electronics (SME)
- High-voltage battery unit
- Convenience charging electronics (KLE)
- Drive, connector fastener
- Drive, charging socket cover
- Charging socket cover sensor
- Locator and status lighting
- Charging socket at the vehicle
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The "charging" procedure for an electric vehicle corresponds to "refuelling"
a conventionally driven
vehicle. Accordingly, in this chapter "charging" means:
Charging the high-voltage battery unit d
The high-voltage battery unit of the G20 PHEV can generally only be charged
by alternating current
(AC charging) at a maximum charging power of 3.7 kW. The charging option for the
high-vol
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General information
To avoid locking the vehicle key in the vehicle,
do not place the remote control in the cargo
area.
Depending on the vehicle equipment and country
version, it is also possible to have the doors
unlocked. To perform settings.
The trunk lid cannot be opened when the vehicle
is in
Concept
The system can help prevent accidents involving
pedestrians and cyclists. In the event of an accident,
the system may reduce impact speed.
The system sounds a warning in the city speed
range before an imminent collision and activates
brakes independently, if needed.
General information
The