Efficiency
At Audi, doing less is something we’re trying
to do more of. We’re working to use less fuel,
release less CO
2 and waste less energy. It’s why
we’ve incorporated a number of more efficient
technologies into the Audi A7 Sportback.
Recuperation
When a vehicle brakes, the discs convert the
kinetic energy into thermal energy, which is wasted
as it cannot be used. With a recuperation system,
like the one in the Audi A7 Sportback, the kinetic
energy is converted into useful electrical energy.
The way it works is simple. While the car is coasting
or braking, the alternator voltage is raised
above the level of the basic electrical system,
which enables the alternator to generate electrical
energy and store it temporarily in the battery.
When the vehicle accelerates, this energy is used
to relieve the load on the alternator, resulting in
a fuel saving of up to 3%.
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Image for illustrative purposes only.
