BMW 5 Series: 24 V Electronic Power Steering
The greater weight of the engines in the G30 on vehicles with 8-cylinder
engines results in a higher
front axle load. This has the effect that the required power of the steering
assist increases. Due to
these high currents, it is necessary to increase the voltage supply of the EPS
to 24 V.
An auxiliary battery, separating element and a charging unit for the auxiliary
battery are required for
this. These components are installed in the luggage compartment of the G30.
The charging unit monitors the state of charge and also charges the auxiliary
battery using a DC/DC
converter. The EPS is only supplied with 24 V once this relay has been
activated. The EPS can also be
operated with 12 V in the event of a fault.
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Voltage supply for 24 V steering
- Dynamic Stability Control (DSC)
- Digital Motor Electronics (DME)
- Electronic Power Steering (EPS)
- Fuse for front right power distribution box
- Body Domain Controller (BDC)
- Fuse in the rear power distribution box
- Power Control Unit PCU 150 W
- Separator
- Auxiliary battery in the luggage compartment
- Fuse in the power distribution box, battery
- Battery
- Advanced Crash Safety Module (ACSM)
- Brake light switch
- Steering column switch cluster (SZL)
- Instrument panel (KOMBI)
Auxiliary battery with separating element
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Battery and separating element
- Auxiliary battery in the luggage compartment
- Separator
Power Control Unit
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150 W Power Control Unit
The Power Control Unit monitors the state of charge and also charges the
auxiliary battery using a
DC/DC converter.
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Introduction
The terminal control in the G30 is identical to the terminal control of the
G12. In the G30, the vehicle
is always in the right condition from the point of view of the customer. The
ter
Control units in the vehicle must be supplied with power only when they are
needed. The following
terminals are used in the G30:
Terminal 15N
Terminal 30B
Terminal 30F
Terminal 30
Terminal 15N
SEE MORE:
History
Historical overview of the BMW 5 Series
E12 (1972-1981)
E28 (1981-1987)
E34 (1987-1995)
E39 (1995-2003)
E60 (2003-2010)
F10 (2010-2016)
G30 (production starts in late 2016 as a 2017 MY vehicle)
Overview of system descriptions
Many of the systems used are already known from the curr
Front seats
Memory sports seat, driver's side, front
Memory seat and memory sports seat, driver's side, front
Fuses in the power distribution box, front right
Exterior mirror, front passenger's side
Body Domain Controller (BDC)
CAN terminator
Motor, longitudinal seat adjustment
Motor, seat a