It’s made clear the horizontal damper arrangement has been developed with performance in mind. The other embodiment includes coil springs and damper-mounted actuator devices for active suspension control, these would be mounted above the electric motor due to the larger size of the damper assembly. Transverse leaf springs offer packaging and weight-saving advantages, and the drawings indicate that a leaf spring could be mounted above or below the electric motor depending on damper placement. Along with Formula 1, similar pushrod suspension applications can be found throughout the motorsport world, including Ind圜ar, and IMSA or WEC prototypes.Īccording to the document, the preferred embodiment would employ a transverse leaf spring, likely made of composite material, similar to the C7 Corvette. Movement of the control arm would be transferred via pushrod to a rocker arm which in turn compresses the inboard damper. The document also claims the horizontal layout would provide a considerable reduction of suspension stresses due to optimized force transfer. One of the obvious benefits is a reduction in the vertical dimensions of the suspension, offering benefits in terms of front-end aerodynamics or rear cargo space. The Italian engineers outline a new way of packaging electric drive unit subassemblies using horizontal suspension dampers which could be installed either above or below the electric drive motor. The document predates the creation of Stellantis and was originally filed in 2019 by Fiat Chrysler Automobiles as a solution for Dodge, Chrysler, Alfa Romeo, and Maserati electric vehicles.
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