Brake Energy Regeneration: an energy-saving innovation.
The new BMW 5-Series sedan continues the roll-out of BMW's Brake Energy Regeneration system on US models. To save energy and reduce the vehicle's fuel consumption over time, this system manages the times at which the alternator charges the battery.
Conventionally, a car's alternator runs continuously and thus is always charging the vehicle's battery. In the new BMW 5-Series, it charges only when the vehicle is decelerating or braking; otherwise, it freewheels and draws virtually no power from the engine. An electronically controlled clutch, similar to that used with the air-conditioning compressor, is used to engage and disengage the alternator.
Accommodating the less-frequent charging is a special, more powerful vehicle battery that can satisfy the vehicle's high electrical demands without access to continuous charging. The battery uses a technology called "glass mat," in which its internal plates are separated with saturated absorbent glass-boron silicate rather than the usual liquid electrolyte. This construction sharply reduces the battery's conversion of charging energy to heat, and can provide the necessary electrical power for longer periods between charges.
See also:
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 ...
Buckling the belt
Make sure you hear the latch plate engage in the
belt buckle.
Tensioning the safety belt
automatically
After the belt is buckled and the door is closed,
the belt is tightened once automatica ...
Voice phone book
Depending on how your vehicle is equipped, it
may be necessary to create your own voice
phone book.
The entries must be entered using voice activation
and are separate from the memory in the
...