E02F3/842

Systems and methods for augmenting an inertial navigation system

Systems and methods for augmenting an inertial navigation system (INS) include outputting from the INS position information associated with the implement and adjusting the implement based upon a comparison of the position information of the implement and a desired position of the implement. The INS is periodically re-initialized using error estimates generated by a kalman filter as a function of position information from one or more positioning (or measuring) devices, such as a fan laser, an automatic total station (ATS), a GNSS receiver, or a ground based radio positioning system, to correct a drift of the position information that may be caused by inherent characteristics of the INS.

Control system for work vehicle, method and work vehicle
11454006 · 2022-09-27 · ·

A work vehicle includes a travel device and a work implement. A control system for the work vehicle includes a controller. The controller controls the work implement according to a predetermined target value. The controller determines whether a slip of the travel device has occurred during control of the work implement. The controller changes the target value according to a result of determination of the slip.

Control system for work vehicle, method, and work vehicle
11454007 · 2022-09-27 · ·

A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller obtains actual topography data indicative of an actual topography of a work site. The controller determines a target depth. The controller obtains positions of a plurality of division points positioned on the actual topography based on the actual topography data. The controller determines a plurality of reference points by displacing the plurality of division points in a vertical direction by the target depth. The controller determines a target design topography based on the plurality of reference points. The controller generates a command signal to operate the work implement in accordance with the target design topography.

SYSTEM AND METHOD FOR WORK MACHINE
20210404151 · 2021-12-30 ·

A system includes a processor and a display. The processor acquires shape data indicative of a shape of the surroundings in a traveling direction of a work machine. The processor generates a guide line. The guide line is disposed spaced from the work machine. The guide line indicates the shape of the surroundings in the traveling direction of the work machine. The processor synthesizes a surrounding image and the guide line and generates an image including the surroundings image and the guide line. The display displays the image including the surroundings image and the guide line based on a signal from the processor. The system may further include the work machine, a camera that captures the surrounding image, and a sensor that measures the shape of surroundings.

LEVELING CONTROL METHOD, DEVICE AND SYSTEM, AND MOTOR GRADER
20210372081 · 2021-12-02 ·

The present disclosure relates to a leveling control method, device and system, a motor grader. The leveling control method includes: acquiring elevations of a current position of a blade of a motor grader and a target position, and a movement speed of the motor grader, wherein the target position is on the ground with a certain horizontal distance from the current position along a movement direction of the motor grader; determining a movement time of the blade from the current position to the target position from the horizontal distance and the movement speed; determining a lifting speed of a lifting cylinder from an elevation difference between the elevation of the target position and the elevation of the current position and the movement time; and controlling the lifting cylinder to adjust the blade to move from the current position to the target position according to the lifting speed.

Towable Attachment Leveling Assembly
20210372082 · 2021-12-02 · ·

A towable attachment leveling apparatus, typically used on tractors, skid-steer, and other vehicles, with ability to independently vary the inclination of each side of an attachment, such as a turf box, about a centerline axis running substantially parallel to the longitudinal direction of travel during use, as well as adjust the vertical elevation of the attachment and allow for additional adjustments to the pitch and/or yaw of the attachment.

CONSTRUCTION MACHINE
20220162830 · 2022-05-26 · ·

A turning work vehicle comprises a lower travel body, an upper turning body, a work device, a rotation body, and a support column. The lower travel body is provided with a blade. The upper turning body is supported by the lower travel body so as to be able to turn. The work device is supported by the upper turning body so as to be able to rotate. The rotation body is provided to the blade. The support column is provided so as to project from the rotation body. A target prism, which is the measurement object of a total station, can be secured to the support column. The rotation body rotates in relation to the blade, whereby the posture of the support column is configured so as to be able to switch between an upright posture and a fallen posture.

CONTROL SYSTEM AND METHOD FOR WORK MACHINE
20220002966 · 2022-01-06 ·

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.

METHOD AND SYSTEM FOR CONTROLLING BULLDOZER AND CONVEYANCE VEHICLE
20230288943 · 2023-09-14 ·

A first assessment is made as to whether conveying of earth and sand to a first unloading position by a conveyance vehicle has been completed. The conveyance vehicle is controlled to exit the first operating region when the conveying of the earth and sand to the first unloading position has been completed. A second assessment is made as to whether the conveyance vehicle has exited the first operating region. An entry of the conveyance vehicle into the first operating region is prohibited when the conveyance vehicle has exited the first operating region. An entry of a bulldozer into the first operating region is permitted after the entry of the conveyance vehicle into the first operating region has been prohibited.

CONTINUOUS CALIBRATION OF GRADE CONTROL SYSTEM
20230340755 · 2023-10-26 · ·

A work machine includes a frame, a linkage assembly, a work implement connected to the linkage assembly, and a grade control calibration system. The grade control calibration system includes a vision processing system, which includes a sensor fixed to the linkage assembly and a first controller. The vision processing system is configured to measure a length of a cutting portion of the work implement, and to transmit the length of the cutting portion of the work implement. The grade control calibration system also includes a grade control system in communication with the vision processing system and the linkage assembly. The grade control system includes a second controller configured to receive the length of the cutting portion of the work implement from the first controller, and to calibrate a position of the work implement based on the received length of the cutting portion of the work implement.