Porsche Torque Vectoring (Ptv) Functional Description; Dynamic Engine Mounting (Padm); Sport" And "Sport Plus" Mode - Porsche Cayman Owner's Manual

Porsche Torque Vectoring (PTV)
Functional Description
Loss of control over
h
WARNING
the vehicle
Despite the advantages of PTV, it is still the
driver's responsibility to adapt his/her driving style
and maneuvers in line with road and weather
conditions, as well as the traffic situation.
The increased safety that is provided should not
induce you to take greater risks with your safety.
The limits set by the physics of driving cannot be
overcome, even with PTV.
Risk of accidents due to inappropriate speed
cannot be reduced by PTV.
Porsche Torque Vectoring (PTV)
PTV consists of a control system for
driving-dynamics relevant brake interventions
enabling variable drive-torque distribution at the
rear axle in conjunction with a mechanical
rear-axle differential lock.
By using gentle braking interventions that are
imperceptible to the driver at the rear wheel on
the inside of the bend, PTV improves steering
performance and steering precision. The vehicle
follows the steering angle of the front wheels more
precisely. Understeer is largely prevented in the
limit range. This increases the lateral acceleration
potential and higher cornering speeds are
possible.
The mechanical rear-axle differential lock
additionally improves traction in the event of wheel
spin. It reduces load alteration effects during rapid
cornering and increases driving stability at higher
speeds.
170
Driving and Driving Safety

Dynamic Engine Mounting (PADM)

On vehicles with Sport Chrono package
Dynamic Engine Mounting with variable damping is
a system designed to enhance both driving
dynamics and driving comfort. Depending on the
driving situation, the ideal mounting rigidity and
damping is automatically set in the range between
a rigid engine-to-body connection (increase in
driving dynamics) and decoupling of the engine
from the body (increase in driving comfort).
"Sport" mode
When "Sport" mode is switched on, a more rigid
engine-to-body connection is achieved for a sporty
driving style.
"Sport Plus" mode
When "Sport Plus" mode is switched on, an
optimal engine-to-body connection is achieved
for driving on race circuits.
Warning message
Dynamic engine mounting faults are indicated by
a warning message on the on-board computer.
f
Please see the chapter "OVERVIEW OF
WARNING AND INFORMATION MESSAGES"
on page 114.

"Sport" and "Sport Plus" mode

The selectable chassis settings mean that the
vehicle can offer various modes for a sportier
overall setup.
The "Sport" mode pushes the control systems
more in the direction of greater emotionality and
performance during everyday driving.
In "Sport Plus" mode, maximum performance is
set for race-circuit-like driving:
– In "Sport Plus" mode:
PASM (Porsche Active Suspension
Management) is automatically changed to
"Chassis Normal" or "Chassis Sport" mode.
– The PDK transmission switches to a sporty
gear-changing map and shortens the gear
shifting times when Sport mode is activated.
Gear changes take place faster.
– The electronic accelerator pedal reacts
sooner, and the engine is more responsive to
throttle inputs. When Sport mode is switched
on and the vehicle is travelling at a speed of
less than 25 mph (40 km/h), this function is
activated only after the driver has floored the
accelerator pedal or released it briefly.
– The rpm limiter characteristic is "harder".
In other words: the engine is immediately
throttled when the performance limits are
reached (only in manual selection mode on
vehicles with PDK).