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Porsche Stability Management (PSM) 911 Carrera 4

Porsche 911 Carrera 4 - Porsche Stability Management (PSM)
Model shown: 911 Carrera 4S

Porsche Stability Management (PSM)

As standard, the 911 Carrera models are equipped with enhanced Porsche Stability Management (PSM), which maintains stability even at the limits of dynamic driving performance. Sensors continuously monitor the direction, speed, yaw velocity and lateral acceleration of the car. Using this information, PSM is able to calculate the actual direction of travel at any given moment. If the car begins to oversteer or understeer, PSM applies selective braking on individual wheels to restore stability.

Under acceleration on wet or low-grip road surfaces, PSM improves traction using the automatic brake differential (ABD) and anti-slip regulation (ASR). When the SPORT PLUS mode of the optional Sport Chrono Package is selected, the PSM threshold is raised to allow a sportier driving style.

For an even more dynamic experience, you always have the option to deactivate PSM. It is automatically reactivated, for your safety, only if you brake harder and either of the front wheels (in SPORT PLUS mode, both of the front wheels) requires ABS assistance. ABS and ABD, however, remain active at all times.

PSM therefore offers a high level of driving stability and safety combined with extraordinary agility. It’s an apparent contradiction in terms, but an intrinsic part of the Porsche identity.

Identity 911

Engineering 911

Exterior design

Interior design

911 ’50 Years Edition’ optional package

Character

Engines

Efficiency-enhancing measures

Coasting

7-speed manual gearbox

Porsche Doppelkupplung (PDK)

Exhaust system

Air intake system

Direct fuel injection (DFI)

VarioCam Plus System

Integrated dry-sump lubrication

Porsche Traction Management (PTM)

Steering

Sport Chrono Package

Dynamic engine mounts

Porsche Torque Vectoring Plus (PTV Plus)

Porsche Active Suspension Management (PASM)

Porsche Dynamic Chassis Control (PDCC)

Wheels + TPM

Front and rear axles

Brakes

Porsche Ceramic Composite Brake (PCCB)

Lights

Porsche Stability Management (PSM)

Airbags

Engineered design

Anti-theft protection

Interior

Steering wheels

Instruments

Seats

Adaptive cruise control with Porsche Active Safe (PAS)

Slide/tilt sunroof

Additional Features

Transport

Porsche Communication Management (PCM)

Burmester® High-End Surround Sound System

BOSE® Surround Sound System

Mobile phone / Bluetooth® connection

Online services

CDR audio system

Exhaust emission control

Fuel economy and recycling

Fuel