Piezoelectric motor and method for actuating same

aacdc, dThe piezoelectric motor comprises a stator and a runner which form a gap as well as comprising a piezoelectric transducer which is connected to the stator or the runner and which with the stator or the runner forms a resonator, wherein the resonator may be excited in a main oscillation direction (H), characterised in that the stator comprises an engagement surface facing the runner, or the runner an engagement surface which faces the stator, and that the stator or the runner comprises an elastic advance element which bridges the gap between the stator and the runner in a manner such that the advance element at least temporarily lies on the engagement surface. The advance element comprises a first part-section as well as a second part-section, wherein the part-sections have a different resonant frequency.