Abstract: A milling machine adapted to remove milled material from a road. The milling machine may include a CAN based grade system operatively connected to a sensor and a milling drum, and a CAN Bus adapter operatively connected to the CAN based grade system. The milling machine may include a programmable logic controller operatively connected to the CAN Bus adapter. The milling drum selectively removes the milled material from the road, and the sensor provides a signal to the CAN based grade system, and the milling drum is positioned based on data from the CAN based grade system.

Abstract: An adaptive advance control system for a construction machine senses the reaction forces applied by the ground surface to a milling drum, and in response to the sensed changes in those reaction forces controls the motive power applied to an advance drive of the machine. Early and rapid detection of such changes in reaction forces allow the control system to aid in preventing lurch forward events of the construction machine.

Abstract: A method and apparatus for detecting the presence of mineral seams during coal or ore mining operations. A mining machine with a cutter drum includes a detector assembly that includes two detectors attached near the surface cut by the cutter drum. The detectors include downward facing windows that receive gamma radiation from mined material and undesirable material. One detector is positioned lower than the other and over a trench created below the surface cut by the cutter drum. The cutting depth of the cutter drum may be controlled based on radiation levels detected by the detectors.

Abstract: In one aspect of the invention, a machine for degrading a natural and/or man-made formation has picks connected to a drum of the machine and at least one accelerometer mounted to the machine adapted to measure forces acting on the machine. Electronic equipment is in communication with the at least one accelerometer and the electronic equipment has a processor adapted to determine a change in the formation based off of input from the at least one accelerometer. The electronic equipment also is in communication with a mechanism adapted to control, at least in part, a location of the drum.

Abstract: In a method for optimizing a cutting process in milling machines which are used to machine road coverings, which comprise a milling device fitted with milling tools which is sprayed with liquid in order to cool the milling tools, in addition to a drive motor, the following steps are provided: detection of the at least one parameter which is representative of the instantaneous power output of the milling device and controlling the amount of cooling liquid supplied according to the at least one parameter which is representative of the instantaneous power output of the milling device.

Abstract: An apparatus for processing ground surfaces comprises a moving device, a working device, especially a milling device for milling the ground surface, and a drive device for driving the moving device and the working device, wherein the working device is movable between a working position, in which it is in operative engagement with the ground surface, and a maneuvering position, in which it is not in operative engagement with the ground surface, wherein a sensor device is provided which detects the maneuvering position and/or at least one working parameter of the working device, namely its power consumption, working speed, rotational speed or its inclination, and/or at least one load parameter of the moving device, and a control device which reduces the frictional connection between the drive device and the working device and/or the drive power transmitted by the drive device to the working device in the maneuvering position and/or in case of the detection of a deviation of the at least one detected working par

Abstract: An adaptive advance control system for a construction machine senses the reaction forces applied by the ground surface to a milling drum, and in response to the sensed changes in those reaction forces controls the motive power applied to an advance drive of the machine. Early and rapid detection of such changes in reaction forces allow the control system to aid in preventing lurch forward events of the construction machine.

Abstract: In a method for optimizing a cutting process in milling machines which are used to machine road coverings, which comprise a milling device fitted with milling tools which is sprayed with liquid in order to cool the milling tools, in addition to a drive motor, the following steps are provided: detection of the at least one parameter which is representative of the instantaneous power output of the milling device and controlling the amount of cooling liquid supplied according to the at least one parameter which is representative of the instantaneous power output of the milling device.

Abstract: In a method for milling an opencast mining surface or for milling off layers of an asphalt or concrete traffic surface with a milling machine removing the ground surface, by milling the ground surface along a predetermined milling track having a predetermined length, by transporting the milled material via a conveying device to at least one container of a truck that travels along next to the milling machine, said truck having a predetermined maximum loading volume per load, and by replacing a fully loaded truck with an unloaded truck when the maximum loading volume of a truck load has been reached, it is provided for the following features to be achieved: calculation of the maximum total loading volume resulting over the length of the current milling track as a function of the current effective working width and a milling depth that has been optimized in relation to a predetermined, preferably maximum milling power, calculation of the number of truck loads required for the maximum total loading volume of a mi

Abstract: In one aspect of the invention, a machine for degrading a natural and/or man-made formation has picks connected to a drum of the machine and at least one accelerometer mounted to the machine adapted to measure forces acting on the machine. Electronic equipment is in communication with the at least one accelerometer and the electronic equipment has a processor adapted to determine a change in the formation based off of input from the at least one accelerometer. The electronic equipment also is in communication with a mechanism adapted to control, at least in part, a location of the drum.

Abstract: A milling machine for milling a paved surface having milling tools connected to an underside of a body of the machine and at least one metal detector attached to a front end of the machine. The metal detector has at least one electrically conductive coil disposed within a magnetically conductive, electrically insulating trough. Electronic equipment is in communication with the metal detector, the equipment being adapted to interpret feedback from the detector.

Abstract: A cart assembly for milling a surface includes a cart having a support frame, a triad of wheel assemblies, and a triad of receivers. The triad of wheel assemblies is disposed on the support frame. Each wheel assembly includes an actuator that selectively extends and retracts a shaft of the wheel assembly to maintain the support frame at a given elevation. The triad of receivers is disposed on the support frame in a generally triangular configuration. The receivers are in electrical communication with the actuators of the wheel assemblies. The cart assembly further includes a milling assembly mounted to the support frame of the cart. The milling assembly includes a grinder adapted to remove material from a surface.

Abstract: A method and a system for monitoring the location of a mining vehicle in a mine. The mine comprises a first and a second work area. At least one identifier (29) whose exact location is known is arranged in the first work area (18a). The location of the mining vehicle (1) is determined continuously by means of a dead reckoning. The location data, based on the dead reckoning, can be updated by means of the identifier. The location data are transmitted to a mine control system for monitoring the mining vehicle.

Abstract: A milling machine for milling a paved surface has milling tools connected to an underside of a body of the machine. At least one ferrous metal detector is attached to a front end of the machine. Electronic equipment is disposed within the machine and is in communication with the metal detector, the equipment being adapted to interpret feedback from the detector.

Abstract: In one aspect of the invention, a milling machine for milling a paved surface comprises milling tools connected to an underside of a body of the machine and also a depth probe comprising a base end opposite a distal end. The probe is connected to a front end of the machine through a probe base disposed proximate the base end. A monitor is adapted to detect a distance between the distal end of the probe and an outer surface of the base. The distal end of the probe is adapted to extend away from the outer surface of the base and penetrate into a paved surface.

Abstract: An automotive construction machine for working ground surfaces, with a machine frame, a drive engine for driving traveling devices and for driving working devices, and a milling drum for milling the ground surfaces, which can be raised, driven by, and can be uncoupled from a drum drive, the milling drum can be moved into a raised position when not in milling mode, and when raised, the rotating direction of the milling drum corresponds to the rotating direction of the traveling devices and remains coupled with the drive engine, and a monitoring device monitors the distance between the milling drum and the ground surface and uncouples the raised milling drum from the drive engine or uncouples the traveling devices from the drive engine or raises the machine frame or generates an alarm signal when the monitoring device detects a deviation that falls below a pre-determined distance, or any of the latter.

Abstract: In a self-propelled road milling machine (1), particularly a cold-milling machine, comprising a track assembly carrying the machine frame (4) via lifting columns (12,13), a milling roller (6) supported on the machine frame (4) for treatment of a ground surface (8) or traffic surface (8), height-adjustable side plates (10) for edge protection, arranged to rest on the ground surface (8) or traffic surface (8) to be treated, a height-adjustable stripping means (14) arranged in the moving direction behind the milling roller (6) and adapted to be lowered, during operation, into the milling track (17) generated by the milling roller (6), and a control means (23) for controlling the milling depth of the milling roller (6), the control means (23) detecting the milling depth of the milling roller (6) from the measurement values of at least one measuring means (16), it is provided that the control means (23) is operative to automatically control the lifting condition of at least one rear and/or front lifting column (12

Abstract: The invention relates to a machine for milling traffic areas. The machine has a vertically adjustable chassis which carries a steerable traveling mechanism and a drive unit for moving the machine and for driving a milling mechanism coupled to the drive unit. A laser scanner is attached to at least on one side of the chassis. With the laser scanner, the height relative to the surface of a traffic area to be milled can be measured and the chassis can be set vertically in accordance with the measured values relative to the surface of the traffic area to be milled. The laser scanner is attached in the center side-wall region of the chassis. The scanning plane of the laser scanner is essentially parallel to the side-wall region of the chassis and at a height which permits monitoring of a hazard region which extends at least over the side length of the machine. The laser scanner produces a trigger signal if a disturbance occurs in the scanning plane.

Abstract: The invention comprises an ice resurfacing machine (1) as well as a system and method for maintenance of ice (3). According to the invention, location of the ice resurfacing machine, properties of the environment of the ice (3) or the position of a blade (15) of a scraper is monitored and received signals are utilized for controlling the ice resurfacing machine or the position of its blade (15).

Abstract: The present invention provides a forward motion speed control system for a self-propelled concrete saw, a self-propelled concrete saw equipped with a forward motion speed control system and a method of controlling the forward motion speed of a concrete saw during a cutting or scoring operation. In one preferred embodiment of the invention, the forward motion speed control system senses and monitors the speed of a power plant transmitting rotational energy to a saw blade and adjusts the forward motion speed of the self-propelled concrete saw to maximize the forward motion speed of the self-propelled concrete saw while maintaining the speed of the power plant in a peak operational range.

Abstract: A road milling machine having a milling roller with a plurality of chisels. A signal receiving unit is assigned to a machine component which is directly or indirectly involved in the milling process or to another machine component. The signal receiving unit detects an operating condition of the machine component and is connected to a signal emitting unit. An optical detecting device may be assigned to the road milling machine, whereby operations are made easier and the milling pattern is optimized.

Abstract: The present invention provides a forward motion speed control system for a self-propelled concrete saw, a self-propelled concrete saw equipped with a forward motion speed control system and a method of controlling the forward motion speed of a concrete saw during a cutting or scoring operation. In one preferred embodiment of the invention, the forward motion speed control system senses and monitors the speed of a power plant transmitting rotational energy to a saw blade and adjusts the forward motion speed of the self-propelled concrete saw to maximize the forward motion speed of the self-propelled concrete saw while maintaining the speed of the power plant in a peak operational range.

Abstract: A laser-regulating means for a construction machine for adjusting the height of a height-adjustable machining tool includes three laser measuring heads which are directed to three measuring points being spaced from each other on a reference surface, and an evaluating means, which, from the output signals of the laser measuring heads and from the known geometric arrangement of the laser measuring heads as regards the machining tool, determines the height of the machining tool relative to a reference surface and, from this height and from a target height determines a control signal for a height-adjustment of the machining tool. The construction machine is a road finisher with a height-adjustable plank or a cold planer with a height-adjustable milling drum.

Abstract: Control apparatus for a horizontal boring tool is described which drives a boring lance via boring rods. The tool includes an input interface for receiving actual values of controlled variables of the horizontal boring tool, and an output unit for issuing control signals for controlling the horizontal boring tool. Between the input interface and the output unit is provided a fuzzy control unit which determines the control signals for activation of the horizontal boring tool from the actual values of the controlled variables and the desired values for the controlled variables by fuzzy logic while taking into account heuristic process values. The control apparatus permits automatic operation of the horizontal boring tool with good course steering and high precision.

Abstract: The invention is a road scarifier for cutting road surfaces, comprising: a frame provided with a cutter, supported by tracks by means of hydraulic actuators suitable for modifying the position of said cutter with respect to the road surface; driving means to obtain the setting in motion of the machine and the rotation of said cutter; right and left sensors arranged at the sides of the machine and suitable for measuring the distance from the road surface; sensors to show the inclination of said machine with respect to the horizontal plane.

Abstract: A process of milling by first surveying the actual profile of a traffic area and generating actual profile data. The desired profile data is generated from an initial basic data set and the desired profile data of the traffic area is corrected with respect to longitudinal waviness. The current position of the milling machine is determined and the milling depth is adjusted as an actual value. The milling depth is thereafter controlled as a function of the difference between the actual value and the desired value, including data of a traffic area whose length exceeds that of the longest longitudinal wave of the traffic area which is leveled or milled.

Abstract: A device and a method for moving an object are based on the fact that the object (8) is pivotable in relation to a base portion (7) about an axis. There is an arrangement (18) for displacing, during pivoting motion of the object, the object substantially parallel to its pivoting plane for the purpose of causing a point of the object to describe a motion in substantially one and the same plane as a consequence of the combined pivoting/displacing.