Abstract: A system for controlling an engagement of a material supply machine with a paving machine is provided. The system includes one or more sensor(s) mounted on material supply machine and/or the paving machine and are configured to detect a position and distance of paving machine with respect to material supply machine. The sensor(s) further detect a relative speed between the two machines. A controller autonomously controls speed of material supply machine based on detected relative speed when distance is less than threshold. The speed of material supply machine is controlled to match speed of the paving machine. The controller also autonomously controls steering of material supply machine based on detected position of leading end of paving machine to align material supply machine with leading end of paving machine until the material supply machine engages with leading end of paving machine.

Abstract: A control apparatus for a soil compacting apparatus such as a vibratory plate has a movable operating element for specifying a running direction of the soil compacting apparatus by way of an operator, and having a hydraulic master device, with a master cylinder, in which a master piston can be moved to and fro in a linear manner, in order to generate a hydraulic signal. A hydraulic connector serves for coupling hydraulic components of the soil compacting apparatus and for transmitting the hydraulic signal from the master device. A transmission device is provided for converting the movement of the operating element into a linear movement of the master piston, it being possible for the operating element to be moved between a first position (V) and a second position (R). The first position corresponds to a maximum forward movement of the soil compacting apparatus, and the second position corresponds to a maximum reverse movement of the soil compacting apparatus.

Abstract: A control device may obtain sensing data related to a paving material mat region laid by a screed assembly of a road paver. The control device may determine, based on the sensing data, a respective texture value and/or a respective height value associated with each portion of two or more portions of the paving material mat region. The control device may determine, based on the respective texture values and/or the respective height values of the paving material mat region, a finish value associated with the paving material mat region. The control device may cause, based on the finish value of the paving material mat region, one or more actions to be performed.

Abstract: A road finisher is provided for producing a paving layer on a subgrade on which the road finisher is movable along a paving direction during a paving run. The road finisher is adapted to use distance measurements to the subgrade, which can be provided to a leveling system of the road finisher, equally as measured values for determining the thickness of a layer. A respective method for determining the layer thickness is provided.

Abstract: 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.

Abstract: A paving system includes a paving machine, a plurality of locational or positional sensor units coupled to or in communication with the paving machine, and a controller in communication with the plurality of sensor units. The controller is configured to select locational or positional information from one or more active sensor units of the plurality of sensor units and automatically navigate the paving machine.

Abstract: A compaction compensation system comprising a mechanism for automatically height adjusting the height adjustable mounting (30) so as to height adjust the sensor relative to the screed by a compaction compensating factor. It is used in a paving machine (1) for laying compactable paving material, the paving machine comprising: (a) a height adjustable screed (5) for laying a layer of compactable paving material onto a surface; (b) a sensor (15,17) for sensing the height of the screed relative to a reference level, the sensor being attached to the screed by a height adjustable mounting; (c) a screed height control system for automatically adjusting the height of the screed in response to different heights sensed by the sensor due to contours of the surface, so as to adjust the screed to lay a layer of varying thickness.

Abstract: 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.

Abstract: A device for operating an electrical consumer, in particular a solenoid valve, including at least one first circuit which encompasses an activatable first switch and a first freewheeling unit connected or connectable in parallel to the consumer, and including a control unit which is designed for activating the first switch in order to energize the consumer with a predefinable electric current with the aid of pulse width modulation. It is provided that the circuit encompasses at least one second switch and one second freewheeling unit, which is connected or connectable in parallel to the consumer, and that the control unit is designed for activating the second switch in a phase-shifted manner with respect to the first switch in order to energize the consumer.

Abstract: An operating device for a construction machine includes a plurality of operating elements for adjusting operating parameters of the construction machine, and a display unit which is configured to display technical data. The operating device further comprises a docking station at which the display unit is attached so as to be removed without tools and which is provided for connecting the display unit with at least one data line and/or power supply of the construction machine.

Abstract: A road paver includes a paving screed adjustable in height for installing a road surface layer and at least one holding device for carrying and positioning of at least one sensor unit. The holding device has at least one swivel arm module for fastening the holding device on the road paver, at least one carrier arm module and at least one sensor module comprising the sensor unit. The carrier arm module is fastened by a first clamping device on the swivel arm module and the sensor module is fastened by a second clamping device on the carrier arm module, wherein the first and the second clamping device are formed respectively for a predetermined clamping force when the respective clamping devices are in a closed position.

Abstract: A road paver includes a paving screed adjustable in height for installing a road surface layer and at least one holding device for carrying and positioning of at least one sensor unit. The holding device has at least one swivel arm module for fastening the holding device on the road paver, at least one carrier arm module and at least one sensor module comprising the sensor unit. The carrier arm module is fastened by a first clamping device on the swivel arm module and the sensor module is fastened by a second clamping device on the carrier arm module, wherein the first and the second clamping device are formed respectively for a predetermined clamping force when the respective clamping devices are in a closed position.

Abstract: A system is provided for varying the width of a molded concrete slab on the fly as the slab is being molded. Position and height of the paving machine relative to an external reference system are determined and controlled using at least two 3D stringless reference objects. An additional sensor provides a signal corresponding to a frame width and thus a concrete slab width, and an actuator controls the frame width actively as the paving machine advances.

Abstract: The disclosure relates to a construction machine with a paving screed to install a road surface, whereby the construction machine is a self-propelled road paver and comprises at least one power line for power supply of at least one electric consumer of the paving screed and whereby the construction machine contains a network for data transmission between at least one sender integrated in the network and at least one receiver integrated in the network. Furthermore, according to the disclosure, at least one section of the power line is integrated in the network and configured for data transmission between the sender and the receiver.

Abstract: An automatic boom telescopic motion apparatus for a working machine includes an automatic telescopic motion part configured to continue the telescopic motion of the boom without inputting an operation to perform the telescopic motion of the boom by the boom telescopic motion input part, in a state in which the on/off operation part is turned on, when the output detection part detects an output which is equal to or greater than a predetermined value and an operation is inputted to the boom telescopic motion input part to increase the speed of the telescopic motion of the boom to a value equal to or higher than a predetermined value.

Abstract: 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 (2) by means of working a predetermined area in several milling trajectories by at least one machine (1), 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 (2), 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.

Abstract: Example systems and methods are disclosed for implementing vehicle operation limits to prevent vehicle load failure during vehicle teleoperation. The method may include receiving sensor data from sensors on a vehicle that carries a load. The vehicle may be controlled by a remote control system. The load weight and dimensions may be determined based on the sensor data. In order to prevent a vehicle load failure, a forward velocity limit and an angular velocity limit may be calculated. Vehicle load failures may include the vehicle tipping over, the load tipping over, the load sliding off of the vehicle, or collisions. The vehicle carrying the load may be restricted from exceeding the forward velocity limit and/or the angular velocity limit during vehicle operation. The remote control system may display a user interface indicating to a remote operator the forward velocity limit and the angular velocity limit.

Abstract: A hydraulic control arrangement for activating a double-acting actuating cylinder, which is connected on the piston side to a road finisher and on the piston-rod side to a screed of the road finisher, is provided. The hydraulic control arrangement includes a supply connection, a tank connection and two consumer connections, in which a loading pressure or a relief pressure is applied to the piston of the actuating cylinder via the consumer connections. The loading pressure or relief pressure is controlled as a function of a defined operating state, and, in a controlling-the-screed-load operating state, the relief pressure supplied to the actuating cylinder on the piston-rod side is controlled via a proportional pressure control valve.

Abstract: A device for detection of the motion of a compactor roller (20) of a soil compactor (10) rotatable about an axis of rotation (A), where said roller comprises on one inside of a roller mantle (22) a plurality of motion sensors (ai) arranged in the circumferential direction around the axis of rotation (A) and at a spacing from each other and moveable with the roller mantle (22) around the axis of rotation (A).

Abstract: A system and method for calibrating a compactor. The compactor may have a roller. The system may comprise a display and a controller. The controller may be configured to receive, when the roller rotates in a first direction, a first baseline compaction value, receive, when the roller rotates in a second direction, a second baseline compaction value, calculate an offset between the first and second baseline compaction values, receive a subsequent compaction value obtained while the roller is rotating in the second direction, adjust the subsequent compaction value by the offset difference, and display an adjusted subsequent compaction value on the display.

Abstract: The present invention relates to a construction machine, in particular a ground milling machine, comprising transportation means connected to the machine frame via lifting columns. The lift adjustment of the lifting columns occurs as a function of the determined pressure values respectively applied to at least one actuator of a pair of front and/or rear transportation means. The present invention further relates to a method of compensating for ground unevenness for such a construction machine.

Abstract: A patcher capable of performing patching operations even when operating in confined spaces and having a pressurized aggregate storage tank and driving devices for opening and air-tightly closing the tank lid and locking/unlocking the tank lid in proper sequence. Tandem linear accelerators control the flow of aggregate from the tank to a dispensing outlet. An articulated boom assembly is operated to position an aggregate dispenser over the repair location. The boom assembly is movable to a vertical position to prevent the assembly from extending beyond the right and left sides of the patcher to provide a safe condition when travelling during a non-patching operating mode. All of the electrically-operated devices on the patcher derive energy from a common battery pack which is charged by the patcher engine during a non-patching mode and alternatively during a patching mode when the stored energy in the battery pack drops below a given threshold.

Abstract: A road construction machine comprising height adjustment devices which adjust the position of the plane of the machine frame in accordance with control signals, where the leveling device measures the distance of the ground surface to the machine frame and controls the height adjustment devices so the machine frame is movable at an adjusted orthogonal distance to the surface; a transmitter is arranged at the machine frame in a rigid fashion, and a receiver is movable, parallel to and synchronously with the machine frame, or vice versa, where the transmitter emits a measuring beam representative of a reference plane, the measuring beam being detectable by the receiver and representing either a plane extending parallel to the machine frame or a plane extending parallel to the ground surface, where the current distance of the machine frame to the current reference location is measurable from the detected position of the reference plane.

Abstract: In a method for laying down a pavement consisting of paving material with a screed of a road paver, in which a compaction unit, particularly a tamper, pre-compacts the paving material at cyclical work cycles with selectable stroke and selectable frequency while the pavement having a selectable pavement thickness) is in the process of being laid down at a selectable paving speed, at least the stroke is automatically adjustable in response to paving parameters, such as at least the paving speed and/or the pavement thickness, along a characteristic curve or in a characteristic map. In the screed the compaction unit comprises an adjusting mechanism which is operable during the ongoing paving work for adjusting the stroke of the compaction unit.

Abstract: A method for preparing a screed assembly for starting a new paving operation is provided. The screed assembly is reset to a pre-stored screed position in response to a user command. A user defined paving depth associated with the new paving operation is received. The screed assembly is positioned to rest on a paving surface and to a float mode in response to a user command. An angle of attack of the screed assembly associated with the new paving operation is set in response to a user command. Further, a height of the screed assembly is adjusted based on the user defined paving depth. A confirmation message indicative of the screed assembly prepared for the new paving operation is provided to a user.

Abstract: Road paver with a towing machine and a movable screed and with a measuring device that is provided for determining a layer thickness of a road pavement that has been newly laid by the screed. The measuring device is formed to determine the layer thickness at an intended location, seen relative to a direction of travel, behind a rear edge of the screed, whereby the measuring device is provided on the road paver such that the layer thickness can be determined independently of a geometric shape and/or a movement of the screed.

Abstract: A concrete finishing machine includes a mobile frame supported above the slab on front and rear wheels with at least one screed roller and a plurality of vibrators are suspended from the frame between the front and rear wheels. The front and rear wheels are rotatable at least ninety degrees between a longitudinally directed traveling orientation and a laterally directed concrete finishing orientation. The front and rear wheels are driven and steerable so that the mobile frame may travel longitudinally down a lane of a road, and then upon pivoting of the wheels, move laterally over a hole in an adjacent lane having uncured concrete to be finished by the finishing machine.

Abstract: A method for laying down a pavement in which a compaction unit such as a tamper pre-compacts the paving material with a selectable stroke and at a selectable frequency while the pavement having a selectable pavement thickness is in the process of being laid down at a selectable paving speed, the stroke of the compaction unit is automatically adjustable in response to paving parameters, such as the paving speed and/or the pavement thickness, along a characteristic curve or in a characteristic map. The compaction unit includes an adjusting mechanism which is operable during the paving operation for adjusting the stroke of the compaction unit.

Abstract: A method of operating a machine having at least one tool is provided. The method may store one or more job profiles or machine configurations and an auto-zero or default profile in a memory associated with the machine, where each of the job profiles and the auto-zero profile may include one or more control settings for operating one or more of the machine and the tool; recall a selected one of the job profiles and the auto-zero profile in response to user input received at a user interface associated with the machine; engage or machine reset operation of one or more of the machine and the tool according to the control settings associated with the selected one of the job profiles and the auto-zero profile; and disengage at least part of the operation based on positioning information provided by one or more feedback devices.

Abstract: In a slipform paver with a tractor including a machine frame with longitudinal members and telescopable cross members, the machine frame comprises a central frame module in which the cross members are supported in a telescopable fashion. A mold adjustable to the working width comprises at least one permanent central mold element fixed relative to the central frame module and at least one permanent outer mold element movable relative to the central frame module. The permanent outer mold element is permanently attached to one of the cross members and/or one of the longitudinal members and the outer mold element is movable together with the cross member and/or the longitudinal member during the adjustment of the working width of the machine frame.

Abstract: Methods and apparatus for tracking manual operations during automatic control of a surface-engaging operation, such as laying a mat on a paving surface, include automatically operating a plurality of components to perform the surface-engaging operation without the actuation of corresponding operator controls. Actuation of the operator controls and actuation of the corresponding components to perform a manual operation can occur during the automatic operation. Information corresponding to the manual operation is recorded in response to detecting actuation of the operator controls and determining that the automatic operation of the machine is occurring.

Abstract: Process control for a paving operation is facilitated by obtaining paving material conveyance information for a time period during which paving material is delivered to a screed of a paver by a material conveyance system and distributed over a surface to be paved. The paving material conveyance information includes data indicating incremental advance of the paving material to the screed of the paver during the period of time and data indicating incremental quantity of the paving material at one or more points of the material conveyance system, both of which are correlated to points in time during the time period at which the data is acquired. Incremental quantity of paving material delivered to the screed is determined to facilitate process control in the paving operation.

Abstract: A construction machine apparatus includes a plurality of ground engaging supports, a machine frame supported from the ground engaging supports and a milling drum supported from the machine frame. A milling drum location detection system is configured to determine a drum location in an external reference system. A location indicator system includes a memory configured to store information identifying a location of one or more areas to be avoided in the external reference system, and a controller configured to compare the drum location to the location of the one or more areas to be avoided, and to provide an output corresponding to a proximity of the milling drum to the location of the one or more areas to be avoided.

Abstract: Method for laying down a pavement with a road paver, in which machine parameters are coordinated at least with paving requirements of the pavement by means of a controller and in which at least one machine parameter set is created and stored in advance for a paving requirement determined before the paving, the parameter set allowing a high level of machine efficiency and pavement quality to be expected and/or has already produced the same for an at least similar earlier paving requirement of an already laid down pavement, and the pavement on the basis of the parameter set created in advance. The road paver has a controller with an on-board computer connected to a sensor system and an actuating system, and includes memories and a retrieval and/or comparison section for triggering the actuating system for implementing the machine parameters of the parameter set created in advance.

Abstract: A weight sensing system for a pneumatic compactor is provided. The weight sensing system includes a pressure sensor in communication with a pneumatic cylinder. The pressure sensor is configured to generate a signal indicative of a pressure exerted on the pneumatic cylinder. Further, a controller is communicably coupled to the pressure sensor. The controller is configured to receive the signal indicative of the pressure exerted on the pneumatic cylinder. The controller is also configured to determine a compaction weight of the pneumatic compactor based on the received signal, a weight distribution on the pneumatic compactor, and a fixed volume of the pneumatic cylinder.

Abstract: An embodiment comprises a first plate coupled to a second plate via a first joint having a first axis of rotation; and a resilient member, coupled to the first plate, including a downward bias directed along a vertical line of force orthogonal to the first axis of rotation; wherein (a) the second plate is configured to at least one of (a)(i) couple to a pavement shoe, and (a)(ii) include a lower surface that comprises a pavement shoe, (b) the resilient member, the first and second plates, and the first joint are configured to simultaneously: (b)(i) rotate the second plate about the first axis of rotation from a non-horizontal position to a horizontal position, and (b)(ii) move the first joint vertically along the line of force; and (c) the first joint is to move vertically and rotate independently of both a screed and an end gate. Other embodiments are described herein.

Abstract: A rotary mixer herein includes: a rotor chamber configured to receive a first surface and produce a reclaimed surface, the rotor chamber including: a front door, a rear door, and a rotor; a particle size detector configured to detect a particle size of the reclaimed surface; and an electronic control module (ECM) electronically coupled to the rotor chamber and the particle sensor, the ECM configured to: receive a particle size from the particle sensor, compare the detected particle size to a desired particle size, adjust the degree of pulverization of the reclaimed surface according to the difference between the detected particle size and the desired particle size.

Abstract: The present invention relates to a paving machine that includes an auger, a screed, and one or more sensors. The auger is adapted to distribute a paving mix on a paving surface. The screed is adapted to compact the mix on the paving surface to form the pavement. The one or more sensors are adapted to monitor the density of the pavement as it is compacted by the screed and provide output signals corresponding to the density so that the force exerted by the screed on the pavement as it is formed may be adjusted to achieve a desired pavement density.

Abstract: A height adjustment system for a paving screed apparatus and a method for adjusting the height of the endgates of a screed system are disclosed. In a disclosed system, the system includes an endgate coupled to a biasing element, such as a spring or a hydraulic cylinder and rod. The biasing element is coupled to an actuator. The actuator is linked to a controller. The biasing element is moveable between a compressed position and an extended position with a setpoint range disposed between the compressed and extended positions. The biasing element is also associated with a sensor for measuring vertical displacement of the biasing element, pressure or load on the biasing element with respect to the setpoint range.

Abstract: A system for controlling a cutting machine for cutting rumble strips in a road surface includes a rotatable cutting head, a cylinder for driving the cutting head out of and into contact with the road surface, and a controller. The controller is programmed to execute an input/output function for varying a proportional gain and an error amplification signal over a range of forward speed of the cutting machine. An I/O function is based on six predetermined cutting machine speed values; wherein a proportional gain and a depth increment are specified for each speed value. The respective speed values increase progressively. As an actual forward speed of the cutting machine varies between two of the six predetermined input speed values a linear interpolation is applied between the next lower and the next greater speed value to vary the instantaneous proportional gain and depth increment to be applied by the controller.

Abstract: A method of laying a finishing layer with a road finisher F having a screed B, whereby the screed, equipped with a tamper device T and a smoothing plate, at least compacts and superficially smoothes the finishing layer, and the stroke and/or the frequency of the tamper device T are remotely varied for laying a finishing layer with a paving thickness and/or laying rate V which vary over the pave width and transversely to the working direction R within the pave width. A road finisher having a screed suitable for implementing the method set forth above wherein the road finisher or screed has an adjustment device for the remotely actuated local variation of at least the stroke of the tamper device within the pave width.

Abstract: A method is provided for measuring the milling depth of a road milling machine, the machine being operative to mill a ground surface with a milling roller lowered to a milling depth to create a milling track, the machine including at least one side plate located to at least one side of the milling roller to engage an untreated ground surface, and the machine including a stripping plate operative to be lowered onto the milling track generated by the milling roller. The method includes measuring the milling depth of the milling track, the measuring including detecting a measurement value of a ground engaging sensor engaging the milling track.

Abstract: A paving machine including an adjustable screed assembly is provided. Actuators adjust the screed assembly into the plurality of different configurations. Sensors sense a respective configuration parameter indicative of the configuration of the screed assembly. A controller is configured to save a first set of parameters including the configuration parameters and save a second set of parameters including the configuration parameters in response. The controller is configured to recall one of the first set or second set of parameters, and adjust automatically the configuration of the screed assembly to correspond to the configuration parameters included in the recalled first set or second set of parameters.

Abstract: A control system for an extendable screed includes a first input device configured to set a speed limit for the extendable screed, a second input device configured to vary a speed of the extendable screed within the speed limit. The controller further includes, a third input device configured to govern a relationship between a speed of the extendable screed and a relative position of the second input device. The control system further includes a controller configured to receive inputs from the first, the second, and the third input devices and output a command signal to move the extendable screed relative to the main screed.

Abstract: An automatic speed control system for a power trowel for regulated adjustment of rotational speed of the trowel rotor assemblies. The disclosure provides for and is configurable to automatically regulate trowel speed and can be adapted to utilize advanced control features like cruise control and power management. The disclosed system incorporates several user and feedback inputs in a number of logic patterns for trowel control.

Abstract: A road paver with a layer thickness measuring device which comprises a plurality of sensors in order to measure a distance to the subgrade or to the road pavement. The layer thickness measuring device is mounted rotatably on the road paver or on its screed, whereby the layer thickness measuring device has an equilibrium position at a stipulated angle to the horizontal that it retains or to which it returns even if the inclination of the road paver or of the screed to the horizontal changes.

Abstract: A road paver with a movable screed and with a layer thickness measuring device, which includes at least two sensors. The sensors are formed to carry out a distance measurement to the paving plane at intervals to determine a distance between the sensor and a point on the surface of the plane, said point being registered by the sensor. One of the two sensors defines a coordinate system. The layer thickness measuring device is formed to add as vectors the distance to the plane measured by the sensor that defines the coordinate system and a movement, relative to the plane and resulting from the driving of the road paver, of the coordinate system that is defined by the one sensor. In this way, a first vector can be determined which, together with a second vector, is used by the measuring device for determining the layer thickness of the laying material.

Abstract: A method and apparatus is disclosed for controlling material feed for asphalt pavers. The material feed system includes a screed, feeder conveyor and a spreader auger. A sensor measures a material volume and transmits this information to an electronic control module (ECM). This information may be used as the target material volume, which the ECM may use to calculate a corresponding conveyor speed and auger speed. The sensor monitors the material volume as paving commences, and the ECM maintains the initial calibrated target size by adjusting the auger and conveyor rotational speeds.

Abstract: A control and switchover system is provided for controlling milling depth and/or slope of a milling drum of a road construction machine during a milling operation to create a milled surface. The system controls the milling depth and/or slope at least in part on a measurement made with a first sensor. Without interrupting the milling operation the system switches over the control of the milling depth and/or slope to control based at least in part on a measurement made with a second sensor.

Abstract: A multipurpose compactor with an automatic safety system is provided. The automatic safety system comprises at least one transmitter and one receiver. The transmitter is coupled mechanically fixed to the multipurpose compactor and/or to a unit movable relative to the multipurpose compactor. The receiver is coupled fixedly to the movable unit and/or the multipurpose compactor.