Abstract: A computer system (900) has processing circuitry to assist in handling a set of differentials of a vehicle. The processing circuitry determines a required longitudinal force for driving the vehicle in a driving direction. The processing circuitry predicts a first longitudinal force of the vehicle according to a current configuration, and to predict second longitudinal forces of the vehicle using differential locking configurations associated with locking or unlocking the set of differentials. The processing circuitry is configured to, when the first longitudinal force is below the required longitudinal force, select one of the differential locking configurations for the vehicle to use, which selected differential locking configuration is associated with a second longitudinal force equal to, or greater than, the required longitudinal force.

Abstract: Mechanisms are provided for automatically predicting vehicle weight of a moving vehicle. Vehicle operation data is obtained from one or more on-board sensors/systems of the vehicle and features are extracted. The features are filtered based on a required working condition of the vehicle to identify intervals of features having valid feature data to thereby generate a filtered valid data. The filtered valid data is processed by a first artificial intelligence (AI) computer model based on time slices of the filtered valid data to generate a first prediction of vehicle weight, and by a second AI computer model based on buckets of key variables to generate a second prediction of vehicle weight. The first prediction is fused with the second prediction to generate a final prediction of vehicle weight which is output to downstream computing logic.

Abstract: Disclosed is a device for selectively applying a dressing composition including an agricultural product and component and at least one adjuvant/carrier component to a plant propagation material externally from the device during sowing and/or planting, and for discharging the dressed plant propagation material onto an underlying surface, including: a. a reservoir container (10), b. a separating device (20) to separate plant propagation material (K) fed from the reservoir container and to output them individually, c. a sensor unit for determining at least one environmental condition when the device is in use, and d. an application assembly (30) configured to selectively apply an aliquot of a dressing composition to the separated plant propagation materials during free-falling after the point of discharge from the device, wherein the assembly (30) includes: i. a sensor (32. 33) for measuring the trajectory of the seed while falling, ii.

Abstract: A soil measure, such as a soil cone index, and a vehicle index indicating the amount of force the vehicle exerts on the ground as it travels over the ground, are obtained and compared to identify a soil damage score. The soil damage score can be mapped over a field and an agricultural vehicle can be controlled based upon the soil damage score.

Abstract: A mobile work machine includes a first grade control system that receives a an external reference position signal from a geographic positioning system, and generates blade control signals to control an orientation of a blade in grading a worksite. The mobile work machine also includes a second grade control system that uses blade mainfall and cross slope as well as chassis (or mainframe) mainfall and cross slope to control the orientation of the blade relative to the frame of the work machine to create a planar grade of a desired mainfall and cross slope. When functionality of the first grade control system is interrupted, the mobile work machine automatically switches to using the second grade control system to perform the grading operation, until the interruption to the functionality of the first grade control system is restored.

Abstract: A travel line creation system for an agricultural machine, includes a position acquirer to acquire position measurement points for the agricultural machine, a display, a first generator to associate the position measurement points with a field displayed by the display and generate creation points on the field by shifting the position measurement points inward in an agricultural field, a second generator to create a travel line including a loop which passes through the creation points and calculate each of virtual lines by connecting together adjacent ones of the creation points, and a setter to extract a pair of virtual lines adjacent to each other and extending in different directions and set, as a work point regarding a breakpoint in work performed by a working device, one of the creation points shared by the extracted pair of virtual lines.

Abstract: Systems and methods for monitoring the distribution of residue material from a spreader tool of an agricultural machine including a sensor, preferably a LIDAR or other scanning transceiver-type sensor mounted or otherwise coupled to the machine and orientated with a sensing region pointing rearwards of the agricultural machine, where operational data indicative of an operational parameter of the spreader tool is obtained and used to control operation of the sensor.

Abstract: A working status indicating a status related to the present work of a hydraulic excavator 1 is determined on the basis of operation signals output from a control lever 24, posture information output from inertial measuring devices 27 to 30, load information output from pressure sensors 32 and 33, and a work area set by a display input device 26, an operation form indicating contents of an operation in operation correction control of a front work implement 12 is decided from a plurality of operation forms set in advance, according to the determined working status, and the operation correction control is performed such that the front work implement moves according to the operation form. Thus, an appropriate assisting operation can be performed in machine control, so that the work accuracy can be improved.

Abstract: An agricultural device and method for dispensing a liquid product to be sprayed over a surface, such as an agricultural field. The agricultural device includes a boom having a longitudinal supply line for transporting the liquid product and a plurality of nozzles, a pressure regulation unit for controlling the opening and closing of one or more associated nozzles, a positioning system to provide position data, where the position data comprises a real-time position of the agricultural device and a time stamp, a detection system positioned on the boom and/or in front of the agricultural device and is configured to provide detection data comprising information on the surface to be sprayed, and a map generator to, based on the detection data and position data, generate a raster-based representation of the surface, the representation comprising a number of raster elements, where each raster element includes position data associated with that raster element.

Abstract: Movement data of a plurality of positions on an observation object performing a predetermined movement action is acquired, feature data is generated by performing frequency analysis on the movement data, a transition sequence of a primitive action is extracted by segmenting the feature data, and based on the transition sequence and an action model obtained by learning a transition sequence of a primitive action obtained by segmenting a movement state of a training object performing a movement action, an occurrence rate of the primitive action in the predetermined movement action is analyzed to extract a pattern of the primitive action, thereby predicting an end timing of the predetermined movement action.

Abstract: The invention relates to a robotic weeding equipment for agriculture robotic weeding system, comprising: a plant squeezer for squeezing cultivated plants, comprising a narrowing end portion and two longitudinal sides, extending backwards from the narrowing end portion when mounted on the agriculture robotic weeding system; a plant squeezer actuator operably connected to the plant squeezer for vertical displacement of the plant squeezer when mounted on the agriculture robotic weeding system; an image recognition device for identification of weeds; and a weed treatment processing device. The plant squeezer is configured to squeeze two parallel rows of cultivated plants to increase the weeding surface between said two parallel rows of cultivated plants.

Abstract: Systems, methods, and computer-readable media for improved control of articulating boom assemblies are disclosed herein. Automated functions, such as auto ground and auto stow functions, may be provided to automatically move an articulating boom assembly to the desired position. When an automated function is requested, a series of waypoints may be generated, and the boom assembly may move a boom tip thereof through each of the series of waypoints. Using the machine geometry of the boom assembly and the pose of the boom assembly when the automated function is requested may enable the waypoints to be determined. The automated functions may enable the boom assembly to be moved faster than when manually operated and also eliminates the need for the operator to provide a series of complex inputs required to move each joint of the articulating boom assembly to reach the desired position.

Abstract: A process of providing industrial vehicle feedback comprises storing, in memory, data identifying a vehicle-based event that characterizes an operation of an industrial vehicle. Further, operation information collected from an electronic component on the industrial vehicle that is associated with the vehicle-based event is stored in the memory. The collected operation information characterizes a current operating state of the industrial vehicle as the industrial vehicle is being operated. The vehicle-based event is detected based upon the collected operation information. After detecting that the vehicle-based event has occurred, geo-location information is assembled with the collected operation information into an event record to capture a vehicle state and a location surrounding the detected event, which is transmitted to a remote server.

Abstract: A controller acquires a target design surface, at least a portion of which is located above an actual topography. The controller acquires a position of a main body of a work machine. The controller acquires a position of a work implement. The controller causes the work machine to travel forward while controlling the work implement in accordance with the target design surface. The controller acquires a height difference between the target design surface and a predetermined portion of the main body. The controller determines whether there is any more earth held by the work implement based on the height difference.

Abstract: A combine harvester includes a control device configured to function as a travel route creation unit, an automatic drive control unit, a course movement unit, and a course correction unit. The travel route creation unit creates, in a yet-to-be-reaped area of a field, a travel route that includes parallel first and second straight-line courses. The automatic drive control unit performs control on automatic driving and automatic reaping based on the travel route. While automatic reaping travel is conducted on the first straight-line course, the course movement unit modifies the travel route by moving the first straight-line course in a direction intersecting with the traveling direction. When movement of the first straight-line course results in movement of the first straight-line course in one direction, the course correction unit corrects a portion of the second straight-line course toward the same one direction.

Abstract: Provided is a surveying instrument including a surveying instrument main body, in which the surveying instrument main body includes a distance measuring module configured to project the distance measuring light toward an object and to perform the distance measurement, an optical axis deflector configured to at least uniaxially perform a scan using the distance measuring light, a storage module configured to store a two-dimensional map, and an arithmetic control module, and the arithmetic control module is configured to compare two-dimensional coordinates excluding a height in three-dimensional coordinates of each point acquired along a locus of the distance measuring light with the positional information of the measuring point in said two-dimensional map, and select a point which is in a range of a threshold value set in advance from the positional information of the measuring point in the two-dimensional map as the measuring point.

Abstract: The present disclosure is directed to systems and methods for operating a grading machine. The method includes (i) receiving information indicating a current position of a moldboard of the grading machine; (ii) determining if the moldboard is moving toward an avoidance zone, and the avoidance zone is defined by a distance from a scarifier of the grading machine; and (iii) in response to a determination that the moldboard is moving toward the avoidance zone, adjusting at least one operating parameter of the moldboard or the scarifier of the grading machine.

Abstract: An agricultural harvesting system includes a control system. The control system identifies a predictive value of a power characteristic based on a relationship between the power characteristic and a characteristic. The control system generates a control signal to control a controllable subsystem of a mobile hybrid agricultural harvesting machine based on the predictive value of the power characteristic.

Abstract: A mobile work machine is provided with a prime mover supported by a chassis, a first hydraulic pump driven by the prime mover, a work attachment powered by the prime mover, and a traction system. The traction system can include a ground engagement assembly for propelling the chassis. The mobile work machine can include an electronic controller configured to execute a traction speed control algorithm in which the position of the power reduction device is operated by the electronic controller to reduce available fluid pressure to a traction control device without receiving an actual traction speed feedback signal at the electronic controller. Alternatively, or in addition, a commanded position of the power reduction control device can be calculated by the electronic controller as a function of a requested prime mover operating speed demand reduced by a calculated adjustment factor.

Abstract: Disclosed herein is a power converter for integrated control of electric oil pumps, which includes a power conversion module configured to receive a direct current voltage to convert the same into an alternating current voltage and to output the converted alternating current voltage to a drive motor, and a control unit configured to control the power conversion module and to control actuation of an oil pump for generating hydraulic pressure in a transmission. The control unit includes a control board, a main controller installed in a partial region of the control board to supply power to the drive motor and to control the power conversion module, and an oil pump controller installed in a remaining region other than the partial region, connected to the main controller, and configured to supply power to a pump motor for actuating the oil pump and to control the oil pump.

Abstract: A system and method are described for moving a material volume to a specified destination, by a system including sensor data sources, a trip sequence planning system, and a controllable material mover. Sensor data sources provide, in real-time, terrain sensor data pertaining to the material volume to be moved to the specified destination. The system generates, based on the terrain sensor data, a three-dimensional mapping of the material volume. The system updates, based on the three-dimensional mapping, a current tile pattern of the material volume. The system determines, by performing a trip sequence optimization routine based upon the updated tile pattern, at least a next block of material to be moved from the material volume, wherein the trip sequence optimization routine is performed in accordance with a k-partite map generated from the current tile pattern, and the k-partite map incorporates path limitations arising from physical accessibility of tiles of material.

Abstract: Described herein are expandable network architectures with communication systems having multiple networks for communications between machines and implements for field operations including planting and harvesting operations. In one embodiment, a communication system includes a first communication module including at least one port of a first network, at least one input port and at least one output port of a second network, and a first network gateway to translate between a first protocol for the first network and a second protocol for the second network. A second communication module is communicatively coupled to tike first communication module. The second communication module includes at least one port of the first network, and at least at least one input port and at least one output port of the second network.

Abstract: A shovel includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, and a hardware processor provided on the upper swing structure. The hardware processor is configured to recognize the position of a dump truck and create a target trajectory for a dumping operation.

Abstract: An apparatus includes at least one processor and at least one memory including computer program code. The at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: determine a target position for a drill bit of the track-mounted drill rig; determine a turning trajectory of an aiming point of the drill bit; monitor position of the turning trajectory of the aiming point of the drill bit with respect to the target position of the drill bit during approach of the track-mounted drill rig to the target position; and cause turning of the track-mounted drill rig to align the aiming point of the drill bit with the target position of the drill bit based on determining that the turning trajectory of the aiming point of the drill bit substantially coincides with the target position of the drill bit.

Abstract: A system and method for cleaning of heat exchanger tubes including an assembly, an indexer, and a communication device provided with specialized software and programming. The indexer includes orthogonally arranged first and second arms. A trolley and sensors are provided on the indexer arms. One or more lances are provided on the trolley to deliver water jets into the openings. Sensors measure displacement as the trolley is moved relative to the heat exchanger's face plate. An operator controls the system from a distance away using the communication device. During setup, the pattern of the face plate is learned and mapped utilizing information from the sensors as one of the inputs. This information is utilized to help navigate the face plate during a subsequent cleaning operation. A kit for retrofitting existing X-Y indexers is also disclosed.

Abstract: The present disclosure presents systems and methods for assisting a crane operator. An imaging system automatically images each building material object contained within a shakeout field on a construction site and processes the images to determine each object's identifying indicium and its geometric properties. These values are compared with a construction site database to ensure that all necessary building materials are present. A positioning device tracks, in real time, the location of the imaging system, the location of structural members within the shakeout field, and/or other important features of the job site, such as obstacles that the crane operator will need to avoid while lifting a structural member from its initial location to its destination location.

Abstract: Techniques for orchestrating activities at an earthmoving site are described. In an example, a stream of images are captured by an image capturing device removably fixed to a mobile earthmoving machine with a field of view overlapping with a working range of an attachment coupled to the mobile earthmoving machine. Using a selected subset of images from the stream captured during a time period, a first trained algorithm generates a probability that the subset of images depicts an action performable by the machine. Based on the probability, it is determined that the machine was performing the action during the time period, and in response, an image from the subset of images is selected. The image and an indication that the machine was performing the action during the time period are transmitted to a remote server system through a network.

Abstract: A control device of a work vehicle includes a required output torque determination unit that determines a required output torque of the power transmission device based on an operation amount of the operation device and a traveling speed of the work vehicle, a traveling load estimation unit that estimates a traveling load torque related to a traveling load on the work vehicle, a required output torque correction unit that corrects the required output torque such that the required output torque is included in an allowable output torque range including an estimated traveling load torque, and a drive source control unit that outputs a control signal for the drive source based on a corrected required output torque.

Abstract: The present disclosure presents systems and methods for assisting a crane operator. An imaging system automatically images each building material object contained within a shakeout field on a construction site and processes the images to determine each object's identifying indicium and its geometric properties. These values are compared with a construction site database to ensure that all necessary building materials are present. A positioning device tracks, in real time, the location of the imaging system, the location of structural members within the shakeout field, and/or other important features of the job site, such as obstacles that the crane operator will need to avoid while lifting a structural member from its initial location to its destination location.

Abstract: A harvester receives obstacle and turn information indicative of positions of obstacles and the locations of turns. A relative position of the harvester and a receiving vehicle is detected and control signals are generated to control unloading functionality, which may include an unloading auger, a spout position and/or a flap position during unloading, while the obstacle is being avoided and/or while a turn is being navigated. An indication of some or all of the relative position, obstacle and turn information, and control signals can be uploaded to a remote server computing system for use in performing future machine control and analytics.

Abstract: A method includes receiving a machine data set; determining a respective soil strength measurement; processing the respective soil strength measurement to generate a recommendation including an executable agricultural prescription; and storing the executable agricultural prescription. A computing system includes a processor and a memory storing instructions that, when executed by the one or more processors, cause the computing system to: receive a machine data set; determine a respective soil strength measurement; process the respective soil strength measurement to generate a recommendation including an executable agricultural prescription; and store the executable agricultural prescription.

Abstract: An excavation information processing device includes an acquisition unit configured to acquire target object position information indicating an excavation target object by position information of a plurality of points, and an excavation earth amount estimation unit configured to sequentially estimate and output an excavation earth amount acquired by a bucket when the bucket performs holding at that point in time based on bucket position and posture information indicating a position and a posture of the bucket and the target object position information.

Abstract: A detachable, self-contained robotic arm system includes: a mounting subsystem configured to releasable engage an operating platform; a robotic arm subsystem coupled to the mounting subsystem; a control subsystem coupled to the mounting subsystem and configured to effectuate movement of the robotic arm assembly; and a connectivity subsystem configured to detachably couple the detachable, self-contained robotic arm system to one or more external systems.

Abstract: An object of the present invention is to provide a work machine that is capable of flexibly setting an entry-prohibited area for a work device according to an operator's intention. To achieve this, a controller 40 sets, as a first position, the position of a work tool 8 that is located when a setting switch 33 is operated, and sets, as a second position, the position of the work tool 8 that is located when the setting switch 33 is operated after the setting of the first position. Further, the controller 40 sets, as a boundary surface of an entry-prohibited area, a plane 70 that passes through a first reference point A and a second reference point B and that is perpendicular to a ground contact surface of a lower track structure 1. The first reference point A is one of a plurality of reference points 8L and 8R on the work tool 8 located at the first position, the plurality of reference points 8L and 8R being preset on the work tool 8.

Abstract: A work machine includes: a drive rotation speed detector configured to detect a signal indicating a rotation of a drive source; a work rotation speed detector configured to detect a signal indicating rotation of a work rotation shaft; and a control device configured to, on the basis of comparison between signals acquired from the drive rotation speed detector and the work rotation speed detector, stop the drive source in a case where there is a rotation speed difference between a driven shaft in a rotating state due to power transmission from the drive source and the work rotation shaft. The work rotation speed detector includes: a detection target member configured to rotate together with the work rotation shaft; and a sensor mounting member configured to hold a detection sensor configured to detect rotation of the detection target member.

Abstract: The invention of the present application has as its object the provision of a work machine that is equipped with a function to prevent a work device thereof from going into an entry prohibited area and can satisfy both working precision and working efficiency of the work device. A controller is therefore configured to start work range limiting control to decelerate or stop an action of a machine main body or the work device when a distance between a monitor point set beforehand on the work device and the entry prohibited area decreases to a first distance, to end the work range limiting control when the distance between the monitor point and the entry prohibited area increases to a second distance greater than the first distance, and to change the second distance according to an operation amount of an operation device.

Abstract: An information map is obtained by an agricultural system. The information map maps values of a characteristic at different geographic locations in a worksite. An in-situ sensor detects tractive characteristic values as a mobile agricultural machine operates at the worksite. A predictive map generator generates a predictive map that maps predictive tractive characteristic values at different geographic locations in the worksite based on a relationship between values of the characteristic in the information map and tractive characteristic values detected by the in-situ sensor. The predictive map can be output and used in automated machine control.

Abstract: The invention relates to a method for control by a supervisor of at least one autonomous agricultural robot comprising geolocation means, the supervisor transmitting periodic row allocation messages to the at least one autonomous agricultural robot, each of the agricultural robots comprising a computer for controlling the movement of the corresponding robot as a function, on the one hand, of the allocated trajectory and, on the other hand, of the geolocation data, as well as for calculating a row change trajectory as a function of the messages transmitted by the supervisor.

Abstract: A crawler-type work machine includes left and right steering brakes configured to brake left and right output shafts, a turning motor configured to produce a rotation speed difference between the left and right output shafts, work implement cylinders configured to drive a work implement attached to a vehicle body, a hydraulic pressure supply unit configured to supply hydraulic fluid to the turning motor and the work implement cylinders, and a controller configured to control the hydraulic pressure supply unit. The controller is configured to execute a hydraulic fluid amount control in order to reduce the hydraulic fluid amount supplied from the hydraulic pressure supply unit to the turning motor when the work implement cylinders are driven while the turning motor is rotating.

Abstract: A method can be used to provide smart notifications to avoid collisions while the vehicle maneuvers in a tight structural environment, such as a home garage or an underground parking lot. The method includes receiving historical vehicle-trajectory data. The historical vehicle-trajectory data includes the location and the heading of the vehicle for each of the plurality of historical trajectories along the structure. The method further includes clustering the plurality of historical trajectories of the vehicle along the structure by types of maneuvers to generate a plurality of trajectory clusters. The method also includes creating a probability distribution bitmap using the plurality of trajectory clusters and creating a topographic map based on the probability distribution bitmap.

Abstract: A method for planning spreading of a spreading material mixture with an agricultural spreading machine includes steps of: identifying individual components of the spreading material mixture, determining component-related setting parameters for the agricultural spreading machine for a planned spreading operation for several or all of the individual components of the spreading material mixture, and evaluating joint spreadability of the individual components of the spreading material mixture on the basis of the determined component-related setting parameters by a calculating device.

Abstract: An aerator for a turf surface has a traction control, an OPC bail, and an aeration bail capable of single handed operation. A controller automatically lowers a tine head to begin aerating at a start location marked when the aeration bail is closed and lifts the tine head to end aeration at an end location marked when the aeration bail is released. The controller further causes the tines that enter the turf surface at the start location to penetrate to a desired hole depth. The controller also automatically adjusts ground speed to maintain a desired hole spacing during an aeration pass, but permits the operator to speed up during a turnaround between passes with a steerable front wheel freewheeling to mitigate wheel scrubbing. A handle assembly having a spring counterbalance is height adjustable and automatically engages a parking brake when placed in an upright non-operating position.

Abstract: An indication of previously-applied material is obtained. A planting machine is controlled to plant seeds based on the indication of the previously-applied material.

Abstract: Methods and systems for controlling a hydromechanical transmission are proposed. In one example, a control method for a hydrostatic unit of a hydromechanical variable transmission (HVT) is presented, comprising controlling the hydrostatic unit via a feedforward control architecture including a non-linear, multi-coefficient model, wherein the hydrostatic unit comprises a hydrostatic pump and a hydrostatic motor and a desired differential pressure of the hydrostatic unit or a desired hydraulic pump displacement may be used as inputs for the model, where the model's output is a pressure difference for a pump control piston coupled to a swash plate of the hydrostatic unit. Use of the non-linear model permits the hydrostatic unit to be controlled based on load, speed, and/or torque, thereby increasing the adaptability of the control system.

Abstract: The present disclosure presents systems and methods for assisting a crane operator. An imaging system automatically images each building material object contained within a shakeout field on a construction site and processes the images to determine each object's identifying indicium and its geometric properties. These values are compared with a construction site database to ensure that all necessary building materials are present. A positioning device tracks, in real time, the location of the imaging system, the location of structural members within the shakeout field, and/or other important features of the job site, such as obstacles that the crane operator will need to avoid while lifting a structural member from its initial location to its destination location.

Abstract: Various embodiments include methods and systems for recognizing misbehavior detection in a vehicle-to-everything (V2X) maneuver coordination message. Various embodiments may include a V2X system of a vehicle receiving a maneuver coordination message, performing a test for misbehavior on the maneuver coordination message, and taking an action in response to the test identifying misbehavior associated with the maneuver coordination message. Various embodiments may include a network computing device of a V2X network receiving a plurality of maneuver coordination messages from a plurality of vehicles, identifying an inconsistency among the plurality of maneuver coordination messages, identifying a misbehavior condition in response to identifying the inconsistency among the plurality of maneuver coordination messages, and taking an action in response to identifying the misbehavior condition.

Abstract: Described herein are technologies that use LIDAR and computer vision to detect a location of a receiving vehicle relative to a forage harvester, fill levels of crop material within the receiving vehicle, and path and landing position of material expelled from the forage harvester and received by a bin of the receiving vehicle. The technologies use such information as feedback for operating the harvester or the receiving vehicle. Some embodiments detect ground level in front of the harvester or the receiving vehicle, and such information is used as feedback too. Some embodiments include a link to communicate the feedback to a GUI for user visualization of the feedback and semi-automated operations of the harvester or the receiving vehicle. For example, readings from LIDAR and a camera of the harvester detect a topography of the material deposited in the bin of the receiving vehicle, and a GUI outputs the topography.

Abstract: Various control systems and methods for a working machine such as a compactor are disclosed. The control system can include any one or combination of components including a controller in communication with at least a steering system and a position sensor. The controller can be configured to: receive position data from the position sensor including during operator implemented steering of the compactor, save the position data to a memory, determine from the position data saved in the memory a possible intent by an operator to create a compaction area, generate a prompt on an operator interface to confirm an actual intent of the operator, and generate a compaction plan for autonomously steering the compactor to compact in the compaction area. The compaction plan can be based at least partially upon the operator implemented steering of the compactor. The controller can implement the compaction plan via autonomous steering.

Abstract: System for constructing a building implementing a controller. The system includes a first control arm and a second control arm. The system also includes an extrusion head located on a distal end of the second control arm. The controller is operable to adjust the first control arm to hold a distal end stead within a predetermined window of coordinates. The controller is also operable to position the second control arm such that the extrusion head is located according to the controller directions.

Abstract: A hydraulic system for a work machine includes a hydraulic pump to supply a pilot fluid, and a hydraulic switch valve to be switched to a plurality of switching positions based on a pilot pressure. The pilot pressure is a pressure of the pilot fluid supplied from the hydraulic pump. The hydraulic system includes a direction switch valve to apply a first pilot pressure to the hydraulic switch valve to switch the hydraulic switch valve into one of the plurality of switching positions. The hydraulic system includes a pressure applying device to apply a second pilot pressure to the hydraulic switch valve. The second pilot pressure is lower than the first pilot pressure.