This paper presents the develop and analysis of four control techniques implemented in an embedded system for an active suspension. The three techniques are based on model predictive control (MPC): The MPC off-line interpolation by piecewise affine systems (PWA), MPC neural network interpolation (NN), generalized model predictive control on-line (GMPC) and state space feedback (SSF). Finally, it is possible to reduce the necessary time to compute the control law with interpolating methods.