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This paper describes a methodology through which is possible to design an active suspension control beginning on the geometric characteristics of a double-wishbone suspension. The used data is based on the 2011 Formula SAE car developed by the Formula UFSC Team. A front half-car model with two degrees-of-freedom was used, taking into account the parameters of the suspension and considering each tire a rigid body. The behavior of the geometric model is analyzed and equations are generated to determine the spring deformation due to each degree-of-freedom. Following, Lagrange's equations are used to obtain the movement equations of the model, which will be converted to a simplified model with the same dynamic behavior used in the control development.