  We propose an efficient approach to describe the fission-fragment charge
yields for actinides based on the driving potential of fissioning system.
Considering the properties of primary fission fragments at their ground states,
the driving potential, which represents the potential energies of the system
around scission configuration and closely relates to the yields of fragments,
can be unambiguously and quickly obtained from the Skyrme energy-density
functional together with the Weizsaecker-Skyrme mass model. The
fission-fragment charge distributions for thermal-neutroninduced fission and
spontaneous fission of a series of actinides, especially the odd-even
staggering in charge distributions can be well reproduced. Nuclear dynamical
deformations and pairing corrections of fragments play an important role in the
charge distributions.
