Control method of an active suspension of a car
AssigneeFerrari S.P.A.
InventorIsabel Ramirez Ruiz
Life of this patent
Estimating the term…
Abstract
A control method for an active suspension of a vehicle, wherein the determination of an optimal camber angle of the active suspension includes the steps of: estimating the slip angle of the wheel of the active suspension; estimating the vertical force which weighs on the wheel of the active suspension; estimating the transverse force which is transferred to the ground by the wheel of the active suspension as a function of the slip angle of the wheel of the active suspension and as a function of the vertical force which weighs on the wheel of the active suspension; and determines the optimal camber angle as a function of the transverse force which is transferred to the ground by the wheel of the active suspension.
Claims14
A control method for an active suspension of a vehicle, the control method comprises the steps of:
- cyclically determining an optimal camber angle of the active suspension;
- and
- driving the active suspension in order to confer the optimal camber angle to the active suspension;
- wherein the step of determining the optimal camber angle comprises the further steps of:
- determining a slip angle (α) of a wheel of the active suspension;
- determining a vertical force (Fz) weighing on the wheel of the active suspension;
- determining a transverse force (Fy) which is transferred to the ground by the wheel of the active suspension;
- and
- determining the optimal camber angle as a function of the transverse force (Fy) which is transferred to the ground by the wheel of the active suspension,
- wherein the transverse force (Fy), which is transferred to the ground by the wheel of the active suspension, is estimated as a function of the slip angle (α) of the wheel of the active suspension and as a function of the vertical force (Fz) which weighs on the wheel of the active suspension.
Dependencies are inferred from the claim text.