Patent ID: 8454266

Claim:
Method of controlling the process of laying a paving material layer in a selectable paving thickness on a level surface with a road finisher having a floating screed towed by towing spars and self-propelled at a laying rate, the screed having a pre-compaction system with at least one tamper having an eccentric drive is operable with a selectable stroke and a selectable frequency, which comprises entering a target value for the paving thickness into an automatic closed-loop control system, acquiring information on an actual setting angle of the screed, the actual paving thickness and the laying rate of the road finisher, communicating the acquired setting angle, paving thickness and laying rate information to the control system, generating actual signals in the control system based at least on the information acquired on the actual setting-angle, paving thickness and laying rate for actuating members including at least for the actuating member for adjusting the tamper stroke, communicating the actuating signals to one or more of the actuating members, the actuating signals being automatically implemented by the actuating members to control the actual paving thickness to a target value and to optimise an operating point of the pre-compaction system, and implementing at least one of such actuating signals with a remotely operable gear train, the gear train adjusting the tamper stroke during the laying process by adjusting the eccentricity produced by the eccentric drive to an optimised operating point of the pre-compaction system.