BMW 3: New control units
Compared with the G20, a number of new control units have been installed in
the G20 PHEV.
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Electrical machine electronics
The function of the Electrical Machine Electronics (EME) is to activate and
regulate the permanently
excited synchronous machine in the high-voltage vehicle electrical
Convenience charging electronics
The convenience charging electronics enable communication between the vehicle
and charging
station of the AC voltage supply in order to charge the high-voltage batte
In the G20 PHEV an acoustic protection for pedestrians is used as standard.
To protect pedestrians
a distinctive sound created specially for electric BMW models is generated
during electric driving.
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The single-piston high pressure pump by Bosch, well-known from the B46
engine, is used. The high
pressure pump HDP6 is driven by a triple cam which is attached to the exhaust
camshaft. To be able
to accommodate a fuel system pressure of 350 bar (5076 psi), the pump piston and
tappet have bee
The low-resistance connection between the housing of the high-voltage battery
unit and ground is
a crucial prerequisite for the fault-free function of the integrated isolation
monitoring. This is why it
is important to observe the correct tightening torque for all assembly screws.
It is also impo