adjustment system of a gearbox ratio equipping a motor vehicle

System for adjusting a ratio in a gearbox of a motor vehicle, characterized by at least two ratio criteria (UL) with which the first relationship is determined (u-vor) on the basis of determining at least two different modes; first means (driving program Stat) by means of which, according to a predetermined prioritization (Tab-UL) from the first reports obtained speeds (u-vor) selecting a second gear ratio (gear box u-vor, UL) and sets the speed ratio based on the second selected ratio.