BMW 3: Introduction
The electrical machine in the G20 PHEV is a permanently excited synchronous machine. It can convert electrical energy from the high-voltage battery unit into kinetic energy, by which the vehicle is driven.
Both electric driving up to approximately 87 mph (140 km/h) as well as support of the combustion engine are possible, for example when overtaking (boost function) or for active torque support when changing gears.
In the reverse situation, the electrical machine converts kinetic energy into electrical energy during braking and in coasting (overrun) mode and stores this in the high-voltage battery unit (energy recovery).
The electrical machine is a high-voltage component
High-voltage component warning sticker
Each high-voltage component has on its housing an identifying label that enables Service employees and vehicle users to identify intuitively the possible hazards that can result from the high electric voltages used.
Only Service employees who satisfy all the prerequisites are permitted to work on the designated high-voltage components: suitable qualifications, compliance with the safety rules, procedure following the exact repair instructions.
For high-voltage safety reasons, with the exception of the high-voltage battery unit no other high- voltage component must be opened.
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Safe working practices for working on a high-voltage system
The following description of the repair of the high-voltage components is
only a general list of the
content and the procedure. In general, only the specifications and instructions
in the current
va
Procedure after an accident
The safety concept of the high-voltage system ensures that, even during or
after an accident, there
is no danger to the customer, the rescue services or the service employee. The
high-voltage system
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Valet parking mode
Concept
In the valet parking mode, the Control Display is
locked and operation via iDrive is no longer possible.
E.g., this mode can be used when the vehicle is
handed over for valet parking.
General information
In the valet parking mode, it is not possible to
change vehicle settings via iDrive. Per
Engine Electrical System
Digital Motor Electronics (DME)
DME 8 control unit
The Digital Motor Electronics (DME) is the computing and switching center.
Sensors on the engine
and the vehicle deliver the input signals and actuators implement the commands.
The Digital Motor
Electronics (DME) calculates the corresponding acti
