Adjustment of the leveling cylinder setting in a road finisher

摘要

A road finisher includes an undercarriage, a chassis which is adjustable in height relative to the undercarriage, an electronic control system, and a paving screed which is attached to tie bars, the tie bars each being hinged to the chassis at a pull point and the pull points each being adjustable relative to the chassis by means of a leveling cylinder. The control system comprises a receiving unit configured to detect an actual pull point height, an evaluation unit configured to calculate a deviation of the actual pull point height from a target pull point height caused by a height adjustment of the chassis relative to the undercarriage, and a command unit, which is configured to automatically at least partially correct the deviation by a correction signal sent from the command unit causing a hydraulic controller to adjust at least one of the leveling cylinders.