Patent classifications
E02F9/2041
CONTAINER LOAD ASSIST SYSTEM AND METHOD FOR A WORK VEHICLE
A system includes a work vehicle, user interface, and controller. The work vehicle includes a frame, boom, implement, perception sensor, position sensor, and ground speed sensor. The perception sensor senses an approaching environment. The position sensor senses a position of the boom or implement. The user interface includes controls and indicators. The controller is coupled to the controls, indicators, perception sensor, position sensor, and ground speed sensor. The controller receives a command to move the work vehicle, drives the work vehicle, determines a distance to the container, determines the ground speed, determines the position of the boom or the implement, receives a command to raise the boom, raises the boom during travel, determines whether the distal end will reach a threshold height before the work vehicle reaches the container, and activates the indicators if the distal end will not reach the threshold height in time.
Construction management device, display device, and construction management method
A bucket position acquisition unit acquires a plane position of a contour point of a bucket in a plan view from the top and a height thereof from a work machine having work equipment including a boom, an arm, and the bucket. A current status landform update unit updates a height in current status landform data related to the plane position of the bucket to an upper value on the basis of the height of the bucket in a case where a work state is a predetermined work state.
Electrical protection apparatus
Provided is electrical protection apparatus for operative fitment to a portion of the machinery operable near an electrical conductor and to generate a signal via electromagnetic induction. Also included is a signal isolator configured to electrically isolate the sensor. Also included is a controller arranged in signal communication with the isolator. The controller is configured to monitor the signal and to: i) record a log of movement commands executed by the control system; ii) if the signal reaches a predetermined threshold, override the control system so that the portion of the machinery is only maneuverable to reduce the signal below the predetermined threshold; iii) if the signal exceeds the predetermined threshold, override the control system and execute the most recent movement commands in reverse to automatically manoeuvre the portion of the machinery away from the conductor; and iv) if the signal reaches and/or exceeds the predetermined threshold, activate the indicator.
LIDAR LOADING SYSTEM
A loading system for a material has a grab dredger configured to selectively engage the material, where the grab dredger includes a boom and a line configured to move a grab throughout a working space. The working space includes an arc within a plane defined by a first dimension and a second dimension, where a third dimension lies perpendicular to the plane. The working space includes a minimum engagement distance and a maximum engagement distance. A Light Detection and Ranging (LiDAR) module can locate a material acquisition point, a material deposit point, and at least one obstacle point. A controller operates the grab dredger to move the grab within the working space to selectively engage the material. The loading system can move the material from the material acquisition point to the material deposit point while negotiating the at least one obstacle point.
Automated control of dipper swing for a shovel
Systems and methods for compensating dipper swing control. One method includes, with at least one processor, determining a direction of compensation opposite a current swing direction of the dipper and applying the maximum available swing torque in the direction of compensation when an acceleration of the dipper is greater than a predetermined acceleration value. The method can also include determining a current state of the shovel and performing the above steps when the current state of the shovel is a swing-to-truck state or a return-to-tuck state. When the current state of the shovel is a dig-state, the method can include limiting the maximum available swing torque and allowing, with the at least one processor, swing torque to ramp up to the maximum available swing torque over a predetermined period of time when dipper is retracted to a predetermined crowd position.
WORK MACHINE
When a bucket 10 is grounded on soil, an operation signal is outputted or corrected such that a relative angle of the bucket 10 with respect to a target surface is maintained if a distance D between the bucket 10 and the target surface 60 is equal to or less than a preset first threshold value D1. When the bucket 10 is not grounded on soil, the operation signal is outputted or corrected such that the relative angle of the bucket 10 with respect to the target surface 60 is maintained if the distance between the bucket 10 and the target surface 60 is equal to or less than a preset second threshold value D2 set smaller than the first threshold value D1. As a result, control to maintain an angle of a work tool can be suitably started.
SYSTEM AND METHOD FOR CONTROLLING WORK MACHINE
A system controls a work machine that loads materials onto a conveyance vehicle. The system includes a controller. The controller performs a loading work by the work machine when the conveyance vehicle is stopped at a predetermined loading position. The controller acquires a loading amount onto the conveyance vehicle. The controller determines whether the loading work is finished based on the loading amount. The controller outputs a withdraw command to the conveyance vehicle to withdraw from the loading position upon determining that the loading work is finished. The controller determines whether the conveyance vehicle has withdrawn after outputting the withdraw command.
EXCAVATOR
An excavator including a lower traveling body; an upper turning body turnably mounted to the lower traveling body; a work attachment attached to the upper turning body; an imaging device mounted to the upper turning body; a hydraulic actuator; a hydraulic pump configured to supply hydraulic oil to the hydraulic actuator; an electric motor configured to drive the hydraulic pump; an operation device of an electric type configured to operate the hydraulic actuator; and a control device configured to control the electric motor, wherein in response to determining that the operation device is not operated, the control device causes the hydraulic pump to automatically stop, and subsequently, in response to determining that an operation with respect to the operation device is started, the control device causes the hydraulic pump to be automatically activated.
CONTROL SYSTEM AND METHOD FOR WORK MACHINE
A work machine includes a work implement. A control system for the work machine includes a processor. The processor acquires actual topography data indicative of an actual topography of a work site. The processor acquires work data including a width of a work implement. The processor generates work path data based on the actual topography data and the work data. The work path data indicates positions of a plurality of work paths aligned in a lateral direction. The processer determines a work order of the plurality of work paths based on the work path data. The processer controls a work machine to perform work according to the work paths in the work order.
Excavator controlling power of hydraulic pump according to orientation of front work machine
An excavator includes a lower traveling body; an upper turning body mounted so as to turn with respect to the lower traveling body; a hydraulic pump connected to an engine; a front work machine including an end attachment, an arm, and a boom that are driven by hydraulic fluid from the hydraulic pump; a front work machine orientation detection part configured to detect an orientation of the front work machine; and a control unit configured to control a power of the hydraulic pump according to the orientation of the front work machine within a work area, based on a value detected by the front work machine orientation detection part.