Porsche Stability Management (Psm) - Porsche 911 Carrera 4 GTS User Handbook Manual

Porsche Stability
Management (PSM).
PSM, which comes as standard, PSM computes the actual
is an automatic control system direction of motion. If this direc-
that stabilises the vehicle at the tion deviates from the desired
limits of dynamic driving perfor- course, PSM can, for example,
mance. Sensors continuously initiate braking interventions
monitor driving direction, speed, targeted at individual wheels in
yaw velocity and lateral acceler- order to stabilise the vehicle.
ation. Using this information,
Under acceleration on wet or automatically reactivate if nec-
low-grip road surfaces, PSM essary for safety.
improves traction using the ABD
(automatic brake differential) PSM comes with two additional
and ASR (anti-slip regulation) functions: precharging of the
functions. For a pure, active brake system, enabling the
driving experience, PSM can maximum braking power to be
be deactivated but it will achieved much sooner; and
brake assist, for maximum
deceleration in a critical situation.
Those who speak in clear
language want clear distinctions.