alternator BMW 3 SERIES ACTIVE HYBRID 2015 Owners Manual

BMW ActiveHybridVehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Hybrid system Special features of the hybrid system
High-voltage system
This BMW is a hybrid vehicle. In addition to the
combustion engine, the vehicle features a
high-voltage system that consists of an elec‐
tric motor and a high-voltage battery among
other things.
Overview1Combustion engine2Electric motor3Control-system electronics4High-voltage cables (orange)5High-voltage battery6Auxiliary battery, combustion engineThe conceptThe hybrid system makes it possible to opti‐
mize fuel consumption and driving characteris‐
tics.
An electric motor assists the combustion en‐
gine. In certain driving situations, the vehicle
can also be driven using only electric power,
thereby reducing fuel consumption.
In addition to this, the electric motor acts like
an alternator: during braking and coasting, it
converts the vehicle's kinetic energy into elec‐ tricity. The current is stored in the high-voltage
battery and is used to drive the electric motor.
Functions
Electric driving: eDRIVE Under certain conditions, refer to page 71,
the vehicle is powered only by the electric mo‐
tor.
Acceleration boost Driving off and accelerating require a lot of en‐
ergy.
To optimize acceleration and to reduce fuel
consumption, the electric motor boosts the
combustion engine, refer to page 72. To do
this, the electric motor uses the energy saved
in the high-voltage battery.
Auto Start/Stop function The Auto Start/Stop function, refer to
page 70, switches the combustion engine off
when coasting, braking and while the vehicle is
stopped. Convenience functions such as the
automatic climate control are supplied by the
high-voltage battery and can remain switched
on.Seite 32At a glanceBMW ActiveHybrid32
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