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Ferrari SUV Debuts New Multimatic Energetic Damper Know-how


Whereas the world debates the appropriateness of famed race workforce and sports activities automotive purveyor Ferrari’s introduction of a crossover SUV mannequin with the Purosangue (“pure blood”), engineers can marvel on the automotive’s introduction of a complicated new energetic shock absorber expertise from Multimatic.

The Multimatic True Energetic Spool Valve (TASV) damper improves over the corporate’s current Dynamic Suspensions Spool Valve (DSSV) expertise by including speedy energetic management to the spool valve’s capability to offer very exact valving of the hydraulic damper. We have seen DSSV shocks on the Chevrolet Colorado ZR2 and Camaro ZL1 1LE in addition to the limited-edition Aston Martin One-77 sports activities automotive.

TASV Damper incorporates two spool valves independently controlling compression and rebound movement. Including an electrical motor offers the damper extra pressure authority and does so at greater frequencies than conventional adaptive or semi-active shock absorber designs.

Doing so requires vital vitality, so the Purosangue features a 48-volt electrical system that powers the TASV dampers. We’ve seen 48-volt energetic anti-roll bars in different automobiles equivalent to Audi’s Energetic Roll Stabilization system.

The electrical motor used to regulate the dampers is a high-power density, liquid-cooled, three-phase brushless electrical motor that was co-developed for this utility by Ferrari.  The motor includes a “slotless” stator winding expertise to reduce its radial dimensions for simpler packaging with the suspension and to maximise energy density.

The motor pressure is transmitted to the valve through a twin-lead ball screw that’s linked on to the hydraulic damper piston rod. This permits high-frequency response and reduces friction, inertia, and package deal house.

The Purosangue’s accelerometers and place sensors on every suspension nook embody the Facet Slip Management (SSC) 8.0 and the 6w-CDS sensor that feed information to Ferrari’s proprietary management logic that manages management of the totally energetic suspension system.

A problem of a Ferrari SUV is assembly clients’ expectations for sporty efficiency and dealing with in a car that’s taller and that has a better middle of gravity. The Multimatic TASV dampers mitigate the peak by allowing variable and continuous distribution of roll stiffness and energetic decreasing of the roll middle (by as much as 10mm).

This lets the pc tailor the Purosang’s dealing with traits to the circumstances, and the dampers’ high-frequency management lets them handle each physique movement and wheel motion, to allow them to each cut back roll and pitch in addition to absorbing highway floor irregularities. The flexibility to regulate physique motions and top eliminates the necessity for any anti-roll units or mechanisms for dynamic journey top adjustment.

Picture courtesy of Multimatic2022_09_12-Ferrari-Purosangue-TrueActive-8.png

The Multimatic TASV damper used on the Ferrari Purosangue.

“This expertise makes it attainable to repeatedly management the car physique to attain focused vertical, roll and pitch dynamics at any velocity.” stated Michael Guttilla, Multimatic Vice President of Engineering. “For instance, the system can actively decrease the car’s middle of gravity and management pitch and roll stiffness below acceleration, braking and cornering to maximise traction and dynamically optimize below/oversteer dealing with steadiness. It might additionally optimize tire contact with the highway because the car drives over tough surfaces, delivering distinctive journey high quality and stability.”

These sound like perfect traits for making an SUV ship the driving expertise anticipated of a Ferrari. We will’t wait to search out out for ourselves with a Purosangue check drive!

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