What is the PASM?
Do you know what is the PASM? The letters PASM is the acronym for Porsche Active Suspension Management. Here is a quick guide to the PASM.
What is the PASM?
Porsche Active Suspension Management (PASM) is an electronic control system. It uses damper adjustment to maintain optimal ride quality, reduce body movement and improve both ride comfort and dynamics. Based on current road conditions and driving style, PASM continuously adjusts the damping force on each wheel.
PASM allows you to personalize your driving experience by offerind different drive modes. In Porsche sports cars, PASM has two modes; Normal and Sport. While the former is a mix of performance and comfort, the Sport setup mode has a much firmer range of settings for greater performance capabilities. The system responds to changing road conditions and/or driving styles by applying a variable damping force within the defined range for the selected mode.
How the PASM Works
Porsche Active Suspension Management uses a series of sensors which monitor all movements of the car’s body. The PASM control unit then evaluates this data and modifies the damping force on each of the wheels. The results are a reduction in pitch and roll, as well as consistent road-holding on all four wheels.
If Sport mode is selected, the suspension is set to a harder damper rate. If the quality of the road surface drops below a certain threshold, the system immediately changes to a softer rating within the Sport setup band, thus restoring the car’s grip and traction. When the road surface improves, PASM returns to the original, harder setting.
If Normal mode is selected and the car is driven actively, PASM automatically switches to a harder rating within the Normal setup band. As the dampers become stiffer, the car becomes more stable and responds more quickly to driver inputs.
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