On the grounds of the obtained results, we show that the model system's chirality and, hence, its operation direction, depends on axial chirality of a covalently bound polar switching-unit, which can be efficiently controlled with an external electric field. At the same time, the proposed system manifests all characteristic photo-physical properties of a unidirectional molecular motor, and its chirality is preserved, i.e., it is thermally and optically stable during the regular motor operation in the absence of the field.