Patent ID: 8128177

Claim:
A method of controlling a construction machine having a frame, a milling drum supported from the frame for milling a ground surface, a plurality of ground engaging supports engaging the ground surface and supporting the frame, and an advance drive associated with at least one of the ground engaging supports to provide motive power to the at least one ground engaging support, the method comprising: (a) operating the milling drum in a down cut mode; (b) applying motive power to the advance drive and moving the construction machine forward at an advance speed; (c) sensing a parameter corresponding to a reaction force acting on the milling drum; (d) detecting a change in the sensed parameter corresponding to an increase in the reaction force; and (e) in response to detecting the change in step (d), and while continuing to operate the milling drum in the down cut mode, reducing the motive power provided to the advance drive to reduce the advance speed and thereby reducing the reaction force and preventing a lurch forward event.