Energy Management - Audi R8 2017 Owner's Manual

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Tips
Clean the rear spo iler compartment every 2 to
3 months . To function correctly, the rear
spoiler must be free of ice, snow and leaves.
Energy management
The starting ability is optimized
The energy management system manages the
electrical energy distribution and optimizes the
availability of electrical energy for starting the
engine.
When a vehicle w ith a conventional energy sys-
tem is not driven for a long time, the batte ry is
d rained by equ ipme nt (for exa mple the immobi l-
izer) . In certain circumstances, t here could may
not be eno ugh energy to start the engine .
Your veh icle is equipped with an intellige nt ene r-
gy managemen t system for d istr ibuti ng electrici -
ty. This significant ly imp roves the st arting ab ility
and increases the battery life .
The energy management system Is made up of
batt ery diagno sis, idling current management
a nd dynam ic energy ma nagement.
Battery diagnosis
The battery diagnosis determ ines the battery
charge level. The sensors determ ine the battery
voltage, t he battery current, and the battery
temper ature. The current charge level and the
performance of the bat t ery are determ ined based
on this .
Idling current management
The idling current management dec reases the
e nergy used w hile pa rked . With the eng ine
sw itched off, it manages the ene rgy dist ribution
to the different electrical components . Date from
battery d iagnosis is taken into account for this.
Depending on the battery cha rge level, e lectr ica l
eq uipment is swi t ched off one item after the ot h-
e r, to prevent the batte ry from draining and to
retain the starting ab ility.
Intellig e nt Technology
Dynamic energy management
While driving, dynam ic ene rgy management dis-
t ributes the appropriate amount of energy to the
electrical equipment. It contro ls the battery
charge level so that more energy is not used then
is being generated in order to maintain an opti-
mal battery charge level.
(D
Tips
- Energy management cannot overcome the
laws of physics. Note that the charge level
and length of the battery life are limited.
- When the sta rting ability is jeopardized, the
(•) indicator light turns on
<=:> page 13.
What you should know
Maintaining the starting ability is the highest
priority .
A lot of stress is p laced on t he battery when dr iv-
ing short d istances, in traffic, and at cold times
of the year. A lot of energy is used but litt le is
generated.
It
is also cr itical when the eng ine is
not ru nning but electr ical equipment is sw itched
on. In th is case, energy is used but none is gener-
ated.
In situat ions like th is, energy management w ill
active ly regulated the distr ibut ion of energy.
Long periods without use
If you do not drive your vehicle for severa l days or
weeks, electrical consumers a re gradually scaled
back or sw itched off. This reduces energy use and
ensures the vehicle will be ab le to start after long
per iods of time . Some conven ience functions
such as opening w it h the remote control key may
not be available . These convenience functions
will be ava ilable again once you switch the ig ni-
t io n on and st ar t t he eng ine.
With the engine switched off
The battery w ill dra in if you use Infotainment
funct ions such as listening to the radio while the
engine is switched off . ...,
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