  The late time accelerated expansion of the universe can be realized using
scalar fields with given self-interacting potentials. Here we consider a
straightforward approach where a three cosmic fluid mixture is assumed. The
fluids are standard matter perfect fluid, dark matter, and a scalar field with
the role of dark energy. A dynamical system analysis is developed in this
context. A central role is played by the equation of state $\omega_{eff}$ which
determines the acceleration phase of the models. Determining the domination of
a particular fluid at certain stages of the universe history by stability
analysis allows, in principle, to establish the succession of the various
cosmological eras.
