Mercedes-Benz AMG GT Operator's Manual page 184

Recuperative brake system (plug-in hybrid)
▌Function of the recuperative brake system
Depending on the selected recuperation level, the
electric motor on the rear axle is operated as an
alternator when in overrun mode and during brak-
ing in order to charge the high-voltage battery
while driving. As soon as you take your foot off the
accelerator pedal when the vehicle is in motion
and in transmission position h, recuperation in
overrun mode is initiated.
The higher the recuperation, the more sharply the
vehicle is braked when coasting and the more
electrical energy is fed into the high-voltage bat-
tery.
The deceleration in overrun mode may not be suf-
ficient depending on the driving conditions. Decel-
erating to a standstill is not possible. Also brake
with the service brake if necessary. Always adapt
your speed to the driving conditions and keep a
sufficient distance.
The recuperative brake system has the following
characteristics:
supports braking with electronically controlled
R
brake force boosting
converts the kinetic energy of the vehicle into
R
electric energy
% If you brake hard, the mechanical brake is
also used. This means that the maximum
recuperative energy cannot be recovered. The
more you drive and brake in an anticipatory
manner, the more efficiently energy can be
recuperated.
System limits
The braking effect of the electric motor during
recuperation in overrun mode may be reduced or
may not be available at all in the following situa-
tions:
when the high-voltage battery charge level
R
increases
if the high-voltage battery is not yet at a nor-
R
mal operating temperature
In these cases, the desired deceleration is set by
the brake control system.
Driving and parking 181
▌Manually setting recuperative deceleration
Requirements:
Drive program Î, A, C or B is
R
selected.
®
ESP is activated.
R
Active Distance Assist DISTRONIC is not acti-
R
vated.
The higher the recuperation, the more sharply the
vehicle is braked when coasting and the more
electrical energy is fed into the high-voltage bat-
tery.