Method and a control unit for determining a parameter indicative of a road capability of a road segment supporting a vehicle

Abstract

The invention relates to a method for determining a parameter indicative of a road capability of a road segment () supporting a vehicle (). The vehicle () comprises a sensor () adapted to generate an information package on the basis of signals () reflected from the surface of a portion of the road segment () in front of the vehicle (), as seen in an intended direction of travel of the vehicle (). The vehicle () further comprises a plurality of ground engaging members (). The method comprises: —determining a reference content measure indicative of the information content of an information package supplied by the sensor () at a reference time instant (T); —comparing the reference content measure to a previous content measure indicative of the information content of an information package supplied by the sensor () at a previous time instant (T), the previous time instant (T) occurring before the reference time instant (T); —upon detecting that a difference between the reference content measure and the previous content measure is outside a predetermined tolerance range, allowing the execution of a determination procedure for determining the parameter indicative of the road capability of the road segment () supporting the vehicle (); —upon detecting that the difference between the reference content measure and the previous content measure is within the predetermined tolerance range, not allowing the execution of the determination procedure, and —wherein the determination procedure comprises modifying the operation of one or more of the ground engaging members ().