Ferrari S.p.a.

Fabrizio Vasta

Stefano Varisco

Alessandro Flumeri

A method to control a road vehicle with rear steering wheels and having, while driving along a curve, the steps of: determining a desired steering angle for the rear wheels; comparing the desired steering angle with a threshold value; applying, while driving along a curve and if the desired steering angle is greater than the threshold value, to both rear wheels a same actual steering angle that is equal to the desired steering angle; and applying, while driving along a curve and if the desired steering angle is smaller than the threshold value, to a rear wheel on the outside of the curve an actual steering angle greater than the desired steering angle and applying to a rear wheel on the inside of the curve a zero actual steering angle.

Method to control a road vehicle with rear steering wheels

A method to control a road vehicle with an electronically controlled self-locking differential when driving along a curve; the control method includes the steps of: determining an actual attitude angle of the road vehicle; determining a desired attitude angle; and changing the locking of the self-locking differential based on the difference between the actual attitude angle and the desired attitude angle.

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Modena, Italy

Fabrizio Vasta