PASM is an electronic damping control system. It actively and continuously adjusts the damping force on each wheel, based on current road conditions and driving style. The effect is to reduce vehicle body movement and thereby improve comfort.
Three modes are available: ‘Normal’, ‘SPORT’ and ‘SPORT PLUS’. Sensors record the body movements as they occur during powerful acceleration, braking, fast cornering or on uneven road surfaces. From this data, the control unit of the Porsche 4D Chassis Control system determines the effect on the actual driving state of the car and modifies the damping force on each of the wheels in accordance with the selected mode. The results are tangible: increased driving stability, improved comfort and enhanced performance.