This paper deals with the optimal control techniques for a class of affine switched systems. The affine structure of the state equations makes it possible to establish a continuity property (with respect to the control parameter) for the above systems. Under some additional assumptions, the optimal control problem (OCP) associated with the affine dynamic models corresponds to a standard convex optimization problem. The latter can be reliably solved using some standard numerical algorithms and consistent regularization schemes. © 2011 IFAC.