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公开(公告)号：US12234621B2
公开(公告)日：2025-02-25
申请号：US17663949
申请日：2022-05-18
Applicant: Deere & Company
Inventor： Randy J. Schamberger , Hunter Jancek
Abstract: A work vehicle may include a chassis, a ground-engaging blade, a first sensor, a second sensor, and a controller. The blade may be movably connected to the chassis via a linkage assembly configured to allow the blade to be raised and lowered and moved in a roll direction. The first sensor may be configured to provide a chassis inclination signal indicative of a main fall angle, a chassis roll signal indicative of a cross slope angle, and a chassis heading signal. The second sensor may be configured to provide a blade inclination signal and a blade roll signal. The controller may be configured to receive the signals, determine a target grade, determine a distance error based on the signals indicative of a distance between the blade and the target grade, and send a command to move the blade toward the target grade based on the distance error.
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公开(公告)号：US20250043534A1
公开(公告)日：2025-02-06
申请号：US18364121
申请日：2023-08-02
Applicant: Deere & Company
Inventor： Anthony K. Kraft , Caitlin S. Gorge
Abstract: A system and method are provided for determining a difference in height of a dozer blade relative to a vehicle frame between a reference position wherein the dozer blade engages the ground and a calibration position wherein the at least one sensor is at a desired height relative to a laser signal plane using a laser receiver automatic find mode.
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公开(公告)号：US12209385B2
公开(公告)日：2025-01-28
申请号：US17648918
申请日：2022-01-25
Applicant: Caterpillar Inc.
Inventor： Nathaniel K. Harshman , David L. Cox , Benjamin J. Kovalick , Bruce R. Vahling
Abstract: A grading machine includes a machine body, a grading blade supported by a circle, a drawbar connecting the grading blade and the circle to the machine body, and a circle drive system. The circle drive system includes a circle drive motor and a gear box. The gear box is configured to engage with and rotate the circle relative to the drawbar around a circle axis. The circle drive motor includes an axis of rotation that is perpendicular to the circle axis, and the gear box includes an axis of rotation that is parallel to the circle axis.
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公开(公告)号：US12188206B2
公开(公告)日：2025-01-07
申请号：US18543580
申请日：2023-12-18
Applicant: DEERE & COMPANY
Inventor： David A Veasy , Nathan J. Horstman , Craig Christofferson
IPC: B62D9/00 , B62D1/12 , B62D6/00 , B62D7/15 , B62D12/00 , B62D15/02 , E02F9/08 , E02F9/20 , E02F3/84
Abstract: The present disclosure provides methods for adjusting steering angle and articulation angle in an auto steering operation of a work vehicle. The percentage of travel of an articulation joystick of the work vehicle at least partially determines an articulation desired angle change, which can be used to calculate an articulation desired angle and a steering desired angle change. The difference between the articulation desired angle and an articulation angle detected by an articulation angle sensor is used to adjust the articulation angle. The steering desired angle change can be used to calculate a steering desired angle. The difference between the steering desired angle and a steering angle detected by a steering angle sensor is used to adjust the steering angle.
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公开(公告)号：US12180676B2
公开(公告)日：2024-12-31
申请号：US17373463
申请日：2021-07-12
Applicant: Caterpillar Inc.
Inventor： Michael C. Gentle
Abstract: Systems to control movement of a motor grader include a sensor for providing a bounce signal indicative of a bouncing movement of the motor grader, and a controller programmed with instructions that, when executed: receive the bounce signal from the sensor; analyze the bounce signal from the sensor; determine whether the maximum amplitude of the bouncing movement exceeds a threshold; in response to determining whether the maximum amplitude exceeds the threshold, generate an articulation angle command signal to change an articulation angle of the motor grader; and transmit the articulation angle command signal to change the articulation angle.
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Patent Agency Ranking
公开(公告)号：US12180675B2
公开(公告)日：2024-12-31
申请号：US17293719
申请日：2020-01-20
Applicant: KOMATSU LTD.
Inventor： Yukihisa Takaoka
Abstract: 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.
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公开(公告)号：US20240384503A1
公开(公告)日：2024-11-21
申请号：US18320371
申请日：2023-05-19
Applicant: Caterpillar Inc.
Inventor： Michael Charles GENTLE
IPC: E02F3/84
Abstract: A controller may obtain sensor data collected by one or more sensors of a work machine having a ground-engaging implement positionable at an angle that defines a leading edge and a trailing edge of the ground-engaging implement. The sensor data may relate to material being worked by the work machine using the ground-engaging implement. The controller may detect, based on the sensor data, at least one of an accumulation of the material at the leading edge of the ground-engaging implement or a formation of a ribbon of the material forced from the leading edge of the ground-engaging implement. The controller may cause one or more position adjustments for the ground-engaging implement to resolve the at least one of the accumulation or the formation of the ribbon.
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公开(公告)号：US20240352706A1
公开(公告)日：2024-10-24
申请号：US18553257
申请日：2022-05-10
Applicant: KOMATSU LTD.
Inventor： Takuya SONODA , Yoshihide NAKAE , Takashi MAEDA
CPC classification number: E02F3/844 , E02F3/764 , E02F9/2004 , E02F3/7645 , E02F3/765 , E02F9/2203
Abstract: A work machine includes a vehicle body, a work implement movably connected to the vehicle body, a plurality of actuators that are connected to the work implement and change an orientation of the work implement with respect to the vehicle body, an operating device that is operable to change the orientation of the work implement, a sensor that detects the orientation of the work implement, and a controller. The controller acquires a current orientation of the work implement, determines a target orientation of the work implement corresponding to an operation of the operating device, determines respective target stroke lengths of the plurality of actuators so that the work implement assumes the target orientation from the current orientation with a combination of stroke motions of the plurality of actuators, and controls the plurality of actuators based on the target stroke lengths.
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公开(公告)号：US12098521B2
公开(公告)日：2024-09-24
申请号：US17662671
申请日：2022-05-10
Applicant: Caterpillar Inc.
Inventor： Ethan Tevis , Michael C. Gentle
CPC classification number: E02F9/2087 , B62D6/003 , B62D9/04 , E02F3/841 , B62D12/00 , E02F9/0841
Abstract: A control system is disclosed. The control system may include a first input component to control a lean angle of at least one set of wheels of a machine and to provide a visual and/or tactile indication of the lean angle. The control system may include a second input component to control an articulation angle of an articulated joint of the machine and to provide a visual and/or tactile indication of the articulation angle. The control system may include a third input component to control a rotation angle of an implement of the machine and to provide a visual and/or tactile indication of the rotation angle.
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公开(公告)号：US12091835B2
公开(公告)日：2024-09-17
申请号：US17509701
申请日：2021-10-25
Applicant: Deere & Company
Inventor： Todd F. Velde , Michael G. Kean
CPC classification number: E02F3/845 , E02F3/3677 , E02F9/265
Abstract: A joint orientation system is provided for a work vehicle having a chassis and an implement coupled to the chassis at a joint. The joint orientation system includes a first IMU positioned on a first side of the work vehicle relative to the joint and configured to collect a first IMU acceleration and a first IMU angular velocity and a second IMU positioned on a second side relative to the joint and configured to collect a second acceleration and a second angular velocity of the implement. A controller is configured to receive the first and second IMU accelerations and the first and second IMU angular velocities; determine a joint orientation correction based on IMU accelerations and IMU angular velocities; modify an estimate of joint orientation with the joint orientation correction to generate a current joint orientation; and output the current joint orientation for actuation of the implement.
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