Abstract: An edge detection system for a road paver, wherein the edge detection system includes a sensor unit, which is configured to emit laser pulse sequences into a plurality of directions in such a way that the laser pulse sequences are reflected at a plurality of locations of a surface to be scanned. The sensor unit is further configured to detect reflections of the laser pulse sequences and, based on the detected reflections, generate polar coordinate signals representing polar coordinates, wherein the polar coordinates include a distance and an associated angle. The edge detection system is configured to transform the polar coordinate signals into Cartesian coordinate signals representing Cartesian coordinates and to determine a position of an edge in the surface to be scanned relative to a Cartesian coordinate system based on the Cartesian coordinate signals.

Abstract: To pave a multi-layer road surface, a first pavement layer is paved along a roadway using a first road paver. A second pavement layer is paved over the first pavement layer using the first road paver or using a second road paver. Upon paving the first pavement layer, paving data is recorded that allows determining at least a progression track traveled during paving of the first pavement layer by a screed outer edge of the first road paver. The paving data is used to control the first road paver or the second road paver when the second pavement layer is paved.

Abstract: The disclosure relates to a road paver comprising a towing vehicle, at least one tow arm, a screed assembly attached to a tow point of the tow vehicle via the at least one tow arm, a leveling cylinder adapted to adjust a position, in particular a height, of the tow point, a screed lifting cylinder adapted to adjust a contact pressure of the screed assembly, a first measuring device adapted to determine a screed height of the screed assembly, a second measuring device adapted to determine an attack angle of the screed assembly, and a feedback control device adapted to control the leveling cylinder and the screed lifting cylinder. The disclosure further relates to a method for feedback controlling a position of a screed assembly and a use of a feedback control device for feedback controlling an attack angle and a screed height of a screed assembly.

Abstract: A method for adapting a leveling control of a road finishing machine comprises: detecting first ground profile data of a first ground profile of a foundation in a surrounding area of the road finishing machine at point in time t0, wherein the road finishing machine is located at position x0; detecting second ground profile data of a second ground profile of the foundation in a surrounding area of the road finishing machine at point in time t1, wherein the road finishing machine is located at position x1, and the second ground profile partially overlaps the first ground profile; determining a translational and rotational matrix which maps a movement of the road finishing machine in space from the point in time t0 to the point in time t1; creating corrected ground profile data from the ground profile data by means of the matrix; determining an analysis region LA comprising at least a section of the first ground profile data L0 and/or a section of the corrected ground profile data; analyzing the analysis re

Abstract: A road finishing machine with a screed for producing a paving layer on a subsoil includes a leveling system for height adjustment of the screed for compensating for irregularities in the subsoil. The leveling system includes a cascade control having either a central control loop between outer and inner control loops that includes a control unit to determine, on the basis of a detected actual value of a pulling point position of a pulling point of the screed to a predetermined reference, and on the basis of a desired value of the pulling point position, a desired value of a leveling cylinder position, or a pulling point control between the outer and inner control loops to determine, on the basis of the desired value of the pulling point position of the pulling point of the screed, the desired value of the leveling cylinder position.

Abstract: A road finishing machine comprises a screed for producing a paving layer on a subsoil on which the road finishing machine is movable in a laying direction, wherein the screed has a pulling arm fixed to the road finishing machine at a front pulling point by a levelling cylinder; at least one measuring means for performing a distance measurement, a storage means, and a controlling system. The controlling system is embodied to calculate a correction value in response to at least one distance measurement performed with respect to the subsoil and/or to a reference, which is performable at a measuring point in front of a front edge of the screed, to at least temporarily store the correction value in the storage means and calculate a desired levelling value for the measuring point taking into consideration the stored correction value, based on which the levelling cylinder of the screed is controllable.

Abstract: A road finisher includes a lifting device which is designed to lift the chassis relative to the undercarriage at least in a rear region of the road finisher. The road finisher further comprises a material deflector, which can be pivoted relative to the chassis, and that is arranged between the two traction tracks.

Abstract: The disclosure relates to a road finisher with an undercarriage with two traction tracks. The road finisher further comprises a chassis, a hopper, mounted on the chassis at the front of the road finisher with respect to a paving direction, for receiving paving material, and a paving screed, provided on the rear of the road finisher with respect to the paving direction, for compacting the paving material. This paving screed is attached to the chassis through pulling arms. The road finisher also comprises a lifting device which is designed to lift the chassis relative to the undercarriage at least in a rear region of the road finisher. The road finisher further comprises a material deflector, which can be pivoted relative to the chassis, and that is arranged between the two traction tracks.

Abstract: The invention relates to a construction machine such as a road paver with an electric generator. The construction machine comprises a hydraulic oil system for hydraulic functions that also cools the generator.

Abstract: The invention relates to a construction machine such as a road paver with an electric generator.

Abstract: The invention relates to an exhaust gas system for a building machine, specifically for a road finishing machine or a feeder, comprising an engine compartment with an engine hood, and an exhaust gas pipe which carries off combustion gases from the engine, wherein the exhaust gas pipe is mounted in the engine compartment and ends underneath the engine hood.