BMW ActiveHybrid
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
Hybrid system
At a glance
1 Combustion engine
2 Electric motor
3 Control-system electronics
4 High-voltage cables (orange)
5 High-voltage battery
6 Auxiliary battery, combustion engine
The concept
The hybrid system makes it possible to optimize
fuel consumption and driving characteristics.
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 con‐
verts the vehicle's kinetic energy into electricity.
The current is stored in the high-voltage battery
and is used to drive the electric motor.
The hybrid system combines the following func‐
tions:
▷
Assists during acceleration: ASSIST and
eBOOST.
▷
Electric driving: eDRIVE.
▷
Automatic stopping of the combustion en‐
gine during coasting: coasting.
▷
Energy regeneration: conversion and stor‐
age of kinetic energy into electrical energy,
and storage of the electrical energy:
CHARGE.
▷
Auto Start Stop Function: automatic stop‐
ping and starting of the combustion engine.
▷
Electric operation of the automatic climate
control.
Functions
Acceleration boost: ASSIST and
eBOOST
Driving off and accelerating require a lot of en‐
ergy. To reduce fuel consumption during high
acceleration and to optimize acceleration, the
electric motor supports the combustion engine.
For this purpose, the electric motor is supplied
by the high-voltage battery.
Electric driving: eDRIVE
Under certain conditions, refer to page
66
, the
vehicle is powered only by the electric motor.
Coasting
The engine is automatically switched off. This
driving condition is referred to as coasting, refer
to page
66
.
Seite 30
At a glance
BMW ActiveHybrid
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