“…For example, transport processes driven by biharmonic driving have been intensively studied in a variety of systems and in various regimes. We can quote: Hamiltonian systems [13], systems in the overdamped regime [12,14] and for moderate damping [15,16], dissipative quantum systems [17], electronic quantum pumps [18] and quantum control of exciton states [19], cold atoms in optical lattices [5,20,21], soliton physics [22] and driven Josephson junctions [23]. Here we intend to consider another aspect of transport in the system which consists of two coupled elements (subsystems).…”