Wirtgen Gmbh

Wacker Neuson Produktion Gmbh & Co Kg

Sell Gmbh

Writgen Gmbh

Stefan Wagner

Cyrus Barimani

Günter Hähn

Sven Paulsen

Joerg Berges

Winfried Von Schoenebeck

Peter Berghoff

Winfried Von Schönebeck

Lothar Schwalbach

Klaus Vollmann

Matthias Fritz

Guenter Haehn

Martin Dahm

Axel Mahlberg

Bernd Walterscheid

Gunnar Ramseger

Markus Bach

Jens Brieskorn

Christian Berning

Otto W Stenzel

Markus Schäfer

Cyrus Barlmani

Walter Derenek

Dittmar Lange

Eduard Fitz

Winfried Von Der Schönebeck

Jörg Berges

Markus SCHÄFER

Wilfried Von Schoenebeck

The invention relates to an earth working machine and to a method for wear-optimized operation of such an earth working machine. Provision is made in this context that machine parameters with which the earth working machine is operated are adapted, in consideration of material properties of the substrate to be worked, in such a way that favorable wear behavior exists for the earth working tools being used.

Earth working machine and method for wear-optimized operation of an earth working machine

A wear prognosis method and a maintenance method for an earth working machine are disclosed, along with an apparatus for performing the method. Provision is made that the current wear state of one or more earth working tools is sensed. The residual wear capacity until the wear limit is reached is then ascertained from the current wear state.

Wear prognosis method and maintenance method

A paver, in particular a slipform paver, has a machine frame supported by front and rear undercarriages and a paving device for the paving of material. The paver is provided with an apron monitoring device for generating elevation profile data or elevation profile signals describing the elevation profile of the material deposited in the apron of the paving device in a direction transverse to the working direction. A data or signal processing device receives the elevation profile data or signals. The apron monitoring device provides the data needed to allow the material to be spread more evenly across the working width of the paver during the feeding operation by means of a spreading device for spreading the material to be paved in a direction transverse to the working direction and/or to allow the spreading device to be controlled for improved spreading of the material after the paver has been fed.

Paver having elevation profile monitoring equipment and methods for operation thereof

In a method for determining an area milled by at least one construction machine or at least one mining machine by means of a milling drum () by means of working a predetermined area in several milling trajectories by at least one machine (), determining the length of the milling trajectories along which a milling operation has taken place by evaluating the continuous machine positions, adding up the previously milled partial areas taking into account the length of the milling trajectory and the installed width of the milling drum (), wherein the partial area currently milled along the milling trajectory is checked, either continuously or subsequently, for overlapping or multiple overlapping with any previously milled partial areas, and any partial areas which overlap are deducted, as overlapping areas, from the added-up previously milled partial areas, the total added-up partial areas milled minus the total overlapping areas established give the milled area.

Method and device for determining an area cut with a cutting roll by at least one construction machine or mining machine

A system is provided for determining a volume of material milled, or a surface area milled, by a construction machine having a milling drum. The volume of material milled is determined as a function of a cross-sectional area of material to be milled in front of the milling drum and a distance traveled by the construction machine while actively milling. The cross-sectional area is determined in part by direct machine observation of one or more profile characteristics of a ground surface in front of the milling drum. The surface area milled is determined as a function of the width of the area to be milled in front of the milling drum and a distance traveled by the construction machine while actively milling.

Determining milled volume or milled area of a milled surface

The invention relates to a self-propelled construction machine and to a method for controlling a self-propelled construction machine. The construction machine according to the invention has a position-determining devicefor determining the position of a reference point R on the construction machine in a coordinate system (X, Y, Z) independent of the construction machine. The position-determining device has a navigation satellite system receiverfor receiving satellite signals from a global navigation satellite system(GNSS) and a computing unitwhich is configured so that the position of a reference point (R) on the construction machine and the orientation (&#x3c8;) of the construction machine can be determined based on the satellite signals in a coordinate system (X, Y, Z) that is independent of the construction machine. Moreover, the construction machine has a controllerwhich cooperates with the position-determining deviceconfigured to adjust the steering angles of the steerable running gearsso that the reference point R of the construction machine moves along a set trajectory T. The computing unitof the position-determining deviceis configured so that, in a control mode in which the control of the construction machine is not based on the satellite signals of the global navigation satellite system, the position (x, y, z) of the reference point (R) relating to the construction machine and the orientation (&#x3c8;) of the construction machine are determined in the coordinate system (X, Y, Z) that is independent of the construction machine while the construction machine is moving on the basis of a kinematic modelA implemented in the computing unitof the position-determining devicewhich describes the position (P) of the reference point (R) and the orientation (&#x3c8;) in the coordinate system (X, Y, Z) that is independent of the construction machine depending on the steering angles and the speeds of the running gears

Slipform paver and method for operating a slipform paver

In a self-propelled construction machine comprising a working device (e.g. milling drum) and a profile sensor device arranged in front of the milling drum as seen in the direction of travel, the following features are achieved: the profile sensor device measures ground pavement profile data in at least one first location, wherein at least one second sensor device is provided which, after the construction machine has traversed a section corresponding to the distance between the milling drum and the profile sensor device, measures or otherwise determines, in at least one point associated with the first location, at least one distance value between the ground surface and the milling drum, wherein a machine control system correlates the determined distance value for the at least one point with a corresponding at least one point associated with the measured ground profile data.

Self-propelled construction machine and method for determining the utilization of a construction machine

This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device.

Method for determining the wear state

A self-propelled construction machine comprises a machine frame, at least three travelling devices, at least one hydraulic drive system for driving at least two travelling devices, wherein the hydraulic drive system comprises at least one controllable hydraulic motor with variable displacement volume and at least one hydraulic pump, at least one working device (e.g. a milling drum), for working the ground pavement. A detection device detects fluctuations in the longitudinal speed of the construction machine during movement thereof, wherein a control unit alters the displacement volume of the at least one controllable hydraulic motor as a function of the detected fluctuations so that the natural frequency of the hydraulic drive system is altered, wherein the control unit adjusts the discharge volume of the pump as a function of the amount of adjustment of the displacement volume in such a fashion that the specified drive speed remains constant.

Self-propelled construction machine and method for working ground pavements

In a self-propelled construction machine comprising a working device (e.g. milling drum) and a profile sensor device arranged in front of the milling drum as seen in the direction of travel, the following features are achieved: the profile sensor device measures ground pavement profile data in at least one first location, wherein at least one second sensor device is provided which, after the construction machine has traversed a section corresponding to the distance between the milling drum and the profile sensor device, measures, in the first location, at least one distance value between the ground surface and the milling drum, wherein ground pavement profile data measured in the at least one first location is referenced to the at least one distance value measured in the first location by means of the second sensor device.

In a method for determining an area milled by at least one construction machine or at least one mining machine with a milling drum () working a predetermined area in several milling trajectories by at least one machine (), determining the length of the milling trajectories along which a milling operation has taken place by evaluating the continuous machine positions, adding up the previously milled partial areas taking into account the length of the milling trajectory and the installed width of the milling drum (), wherein the partial area currently milled along the milling trajectory is checked, either continuously or subsequently, for overlapping or multiple overlapping with any previously milled partial areas, and any partial areas which overlap are deducted, as overlapping areas, from the added-up previously milled partial areas, the total added-up partial areas milled minus the total overlapping areas established give the milled area.

A construction machine system comprises a self-propelled construction machine and a total station. The construction machine possesses a machine frame, a drive means and a working means for altering the terrain. A position-determination means determines the position of a reference point on the machine in a first coordinate system independent of the machine. The position-determination means receives satellite signals from a global navigation satellite system (GNSS), wherein in normal operation the machine is controlled using the GNSS such that a reference point on the machine moves along a set target travel path. In a total station control mode, the machine is controlled without the GNSS and only using the total station based on a position of the standpoint and orientation of the total station ascertained in the GNSS control mode, and the position-determination of the construction machine occurs in a second coordinate system based on the total station.

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Bad Honnef, Germany

Stefan Wagner