A limiting plate of a road paver is detachably attached to a traverse or to a chassis of the road paver to increase the basic working width. The limiting plate is arranged with variable spacing to a subgrade. In order to prevent a mix from flowing forwards in a direction of travel and at the same time improve the efficiency of a screw conveyor, in which a geometrically defined screw trough is formed, a limiting plate extension is arranged on the limiting plate so that it can be adjusted, particularly in the direction of the subgrade.

Methods and systems for making and using a wide swath offset concrete screed apparatus for screeding wet concrete slurry. The apparatus includes a cross support bar, an attachment mechanism for attaching the cross support bar to a liftable arm of a motorized vehicle, and lateral support bars for attaching a screed bar to the cross support bar. The screed bar is positioned offset from the motorized vehicle used to operate the screed, allowing the motorized vehicle to drive outside the forms.

An extendable section, for attachment to a fixed screed, may include a rotatable shaft, and a power receiving component attached to the rotatable shaft. The power receiving component may receive power generated during rotation of a drive shaft, and generate torque and speed for rotating the rotatable shaft. Increasing the driving rotational speed of the drive shaft may increase a driven rotational speed of the rotatable shaft, and decreasing the driving rotational speed of the drive shaft may decrease the driven rotational speed of the rotatable shaft.

A hydraulic paver system for operating an electric paver in different operation modes including a first hydraulic circuit and a second hydraulic circuit, wherein the first hydraulic circuit includes a first hydraulic pump arrangement configured for providing a hydraulic driving power to driving device(s) for driving the electric paver, and the second hydraulic circuit includes a second hydraulic pump arrangement configured for providing hydraulic working power for working device(s) of the electric paver for paving, wherein the second hydraulic pump arrangement is driven in the paving mode for providing the hydraulic working power, and a control unit for operating the electric paver in the different operation modes, wherein in the transporting mode the first hydraulic circuit is activated and the second hydraulic circuit is deactivated, wherein the deactivated second hydraulic circuit provides a hydraulic standby power that is smaller than the hydraulic working power provided in the paving mode.

An asphalt finisher includes a tractor, a hopper provided on a front side of the tractor and configured to receive a pavement material, a conveyor configured to supply the pavement material in the hopper to a rear side of the tractor, a screw configured to place and spread the pavement material supplied by the conveyor on a rear side of the tractor, a screed configured to lay and spread the pavement material placed and spread by the screw on a rear side of the screw, and a distance measuring device configured to include a region including a road surface placed and spread by the screed, and a planimetric feature that is used as a reference for a height of the road surface, within a measuring range.

A control system for a road paver comprises a camera system configured to generate image data of an environment of the road paver. The control system further comprises a controller electronically connected to the camera system. The controller is configured to receive the image data from the camera system, and to apply an object recognition process on the received image data to identify an edge line serving as a reference line for a mat to be laid by the road paver, and to determine a three dimensional position of the identified edge line. The controller may automatically control the road paver, and may assist an operator to control the road paver based on the identified position of the edge line.

A method for operating a road paver comprises paving a road surface with the road paver along a road bed, wherein a paving screed of the road paver is drawn over the road bed along a paving direction of travel. The following steps are performed using a curve correction unit: determining a value defining a steering angle of the road paver; calculating based on the determined value an expected offset of the paving screed, which results from a yawing movement of the road paver during steering with the steering angle defined by the determined value; and automatically correcting a lateral extension position of at least one lateral extension part of the paving screed based on the expected offset, so that the offset is compensated.

Systems and methods for controlling the cross slope of an asphalt paver screed. One system includes a tractor and an implement coupled to the tractor via a left tow arm and a right tow arm. The system also includes a left slope sensor mounted to the left tow arm and a right slope sensor mounted to the right tow arm. The system further includes one or more processors configured to perform operations including receiving left slope data and right slope data, calculating a measured cross slope of a virtual transverse beam extending between the left tow arm and the right tow arm based on the left slope data and the right slope data, obtaining a target cross slope, and causing movement of one or both of the left tow arm and the right tow arm based on a comparison between the measured cross slope and the target cross slope.

A screed control system for a screed system includes a controller communicably coupled to a position sensor and at least one of a screed pressure assist system, an extendable screed height system, and a tamper system. The controller is configured to receive a signal indicative of a position of an at least one extendable screed with respect to a main screed. The controller is also configured to determine a change in the position of the at least one extendable screed with respect to the main screed. The controller is further configured to control at least one of the screed pressure assist system, the extendable screed height system, and the tamper system based, at least in part, on the determination.

A road finisher comprises a towing vehicle including a material hopper at a front in a paving travel direction for receiving paving material, and a paving screed which is pulled behind the towing vehicle in the paving travel direction for compacting paving material. A generator for providing electrical power is provided on the towing vehicle. A plurality of electric heating devices is provided on the paving screed for heating the paving screed. The road finisher further comprises a power distribution arrangement having a line network configured to supply the heating devices with power provided by the generator. The power distribution arrangement comprises a plurality of power adjusters provided on the paving screed and each power adjusted is associated with one of the heating devices. The road finisher comprises a control device configured to control the power adjusters to individually dynamically adjust the power supplied to the respectively associated heating device.