No more compromises in geometry settings. Lamborghini can change it according to the current turn.

It’s unbelievable what innovations car companies come up with when developing super sports models. Active aerodynamic elements, smart traction controls, active chassis, there’s a lot of it. Lamborghini is currently working on another technical innovation, namely variable camber and toe settings, which it presented on Huracan prototypes during Lamborghini Tech Day.

The idea itself is not new, as confirmed by technical director Rouven Mohr, who previously worked on a similar project at Audi. The idea is to eliminate the compromise between different uses. A technically demanding circuit requires a different geometry setting than a fast one, not to mention a set-up for normal use.

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When cornering, the suspension on the outside wheels compresses and pushes against the outer edge of the tire. This phenomenon is suppressed by the negative camber of the wheels, so that the pressure on the tire is even in the corners. But this leads to impaired stability at high speeds and excessive tire wear on the inside, which you don’t want in normal traffic. Convergence/divergence is approached with the same compromise. We use the toe-in when we want stability at high speeds, the toe-in comes in handy on winding tracks.

The solution is the Active Wheel Carrier wheel hub extension adjusting the wheel setting in both axes. Movement is provided by two flanges controlled by 48V electric motors capable of making changes within a quarter of a second. They are capable of setting a positive deflection within 2.5 degrees and a negative even 5 degrees. For toe-in, it’s 6.6 degrees in both directions. In reality, normal corrections will be much smaller, but they will be performed every second.

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Paradoxically, designing and manufacturing these components was not that difficult, the biggest problem that Audi’s research failed at that time was creating the corresponding software. It must be able to adjust the wheels independently while cooperating with traction control, torque distribution and active aerodynamic elements. Related to this, Lamborghini will use different compounds on the front and rear axles and use softer springs.

Huracan prototypes with the Active Wheel Carrier system are already 2.8 seconds faster than the standard model in the hands of a test pilot at the Porsche Nardò circuit. Despite partial successes, the serial form of the system is still far away.

Lamborghini

Ferruccio Lamborghini founded the sports car company in 1963 as a competitor to brands such as Ferrari.

After declaring bankruptcy and changing ownership, Lamborghini was taken over by Chrysler in 1987. It has been owned by Audi (Volkswagen Group) since 1998.

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