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公开(公告)号：US20240295096A1
公开(公告)日：2024-09-05
申请号：US18571972
申请日：2022-07-27
Applicant: KOMATSU LTD.
Inventor： Ken NISHIHARA , Eiji ISHIBASHI , Takuya SONODA
Abstract: A system includes a work implement sensor attached to a work implement to detect work implement roll and pitch angles, and a controller. The controller acquires an actual frame length, a position of the first body connecting portion, and the roll and pitch angles. The controller calculates an assumed position of the first frame connecting portion when the yaw angle is assumed to be a predetermined angle based on the roll and pitch angles in the first posture, an assumed frame length indicating a distance between the assumed position of the first frame connecting portion and the first body connecting portion, the yaw angle of the work implement in the first posture based on a difference between the actual and assumed frame lengths, and a position of the predetermined portion of the work implement based on the roll, pitch and yaw angles of the work implement in the first posture.
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公开(公告)号：US20240287755A1
公开(公告)日：2024-08-29
申请号：US18175704
申请日：2023-02-28
Applicant: Deere & Company
Inventor： Daniel M. Kassen , Todd F. Velde , Carl J. Koenig
CPC classification number: E02F3/845 , E01C19/004
Abstract: A system and method are provided for automatically implementing a commanded change in elevation of a ground profile being created by a work vehicle such as a dozer using a slope control system of the work vehicle. A controller calculates an adjusted target value of a mainfall slope and an adjustment distance sufficient to achieve the desired change in elevation and then controls the mainfall slope of the work vehicle to the adjusted target value as the work vehicle advances by the adjustment distance. Then the mainfall slope is automatically returned to its original value.
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公开(公告)号：US20240287754A1
公开(公告)日：2024-08-29
申请号：US18174750
申请日：2023-02-27
Applicant: Deere & Company
Inventor： August D. Hammer
IPC: E02F3/84
CPC classification number: E02F3/845
Abstract: A work vehicle including a chassis, a ground-engaging implement, an input device, a global positioning system, an implement sensor, and a controller. The implement movably connected to the chassis via a linkage assembly configured to allow the implement to be raised, lowered, and moved in a roll direction. The input device providing a bench surface, a desired cross slope, a desired mainfall slope, and a desired depth. The global positioning system configured to provide a chassis heading signal, a chassis inclination signal indicative of a main fall angle, and a chassis roll signal indicative of a cross slope angle. The sensor configured to provide a blade inclination signal and a blade roll signal. The controller configured to receive the signals, determine a distance error, and send a command to move the implement toward the desired mainfall slope and cross slope based on the distance error and towards the desired depth.
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公开(公告)号：US12071743B2
公开(公告)日：2024-08-27
申请号：US17086126
申请日：2020-10-30
Applicant: Caterpillar Inc.
Inventor： Jeremy Kushner
CPC classification number: E02F3/96 , E02F3/3414 , E02F3/422 , E02F3/7609 , E02F3/844 , E02F9/2004 , E02F9/2025 , E02F9/2203
Abstract: In some implementations, an implement control system includes an operator control configured for manipulation in one or more motions and a controller. The controller may be configured to, based on a particular motion of the one or more motions, cause actuation of one or more first actuators, configured to selectively raise or lower a first lateral side of a work implement of a machine, and one or more second actuators, configured to selectively raise or lower a second lateral side of the work implement, in tandem. The one or more first actuators and the one or more second actuators may be controlled by independent control systems.
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公开(公告)号：US20240247467A1
公开(公告)日：2024-07-25
申请号：US18418054
申请日：2024-01-19
Applicant: LEICA GEOSYSTEMS TECHNOLOGY A/S
Inventor： Michael Goulet KEAN , Tommi Juhani KAUPPINEN , Morten NISSEN
CPC classification number: E02F9/26 , E02F9/2029 , G01V20/00 , G06T7/001 , E02F3/844 , G06T2200/04 , G06T2207/30164
Abstract: A method for deriving a wear state of a soil interaction component of a soil processing implement of a construction vehicle. The method comprises steps of 1.) providing a geometry model regarding an assumed shape of the soil interaction component, 2.) engaging the soil by using the soil interaction component and tracking a motion for deriving tracking data of the soil interaction component, 3.) using the tracking data and the geometry model to derive an expected 3D surface model, 4.) providing visual 3D perception data of a soil area affected by the engaging, such that the visual 3D perception data and the expected 3D surface model can be referenced to one another, and 5.) comparing the visual 3D perception data with the expected 3D surface model and, based thereof, determining a deviation of an effective shape of the soil interaction component from the assumed shape.
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Patent Agency Ranking
公开(公告)号：US12024862B2
公开(公告)日：2024-07-02
申请号：US16784673
申请日：2020-02-07
Applicant: Caterpillar Inc.
Inventor： Shawn N. Mathew , Yang Liu , Yongtao Li
CPC classification number: E02F9/262 , E02F3/842 , E02F3/847 , E02F9/2045
Abstract: A controller-implemented method for automated control of at least one of an autonomous or semiautonomous machine to clear at least one windrow along a work surface. The method includes utilizing a visual perception sensor to detect said windrow, generating a plurality of windrow visual detection signals, determining a position of a windrow relative to the machine based upon the plurality of windrow visual detection signals, and generating machine control commands to clear the windrow.
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公开(公告)号：US12012729B2
公开(公告)日：2024-06-18
申请号：US17274589
申请日：2019-09-17
Applicant: KOMATSU LTD.
Inventor： Yukihisa Takaoka
Abstract: A system controls a work machine including a work implement. The system includes a load sensor and a processor. The load sensor detects a load acting on the work implement. The processor controls the work machine to dig a digging wall formed between adjacent slots. The processor moves the work machine to either one of the adjacent slots adjacent to the digging wall when the load during digging the digging wall is equal to or greater than a first threshold. A method is executed by a processor to control the work machine. The method includes detecting a load acting on the work implement, controlling the work machine to dig the digging wall, and moving the work machine to one of the adjacent slots when the load during digging the digging wall is equal to or greater than a first threshold.
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公开(公告)号：US11976716B2
公开(公告)日：2024-05-07
申请号：US16557609
申请日：2019-08-30
Applicant: Caterpillar Inc.
Inventor： Nathaniel K. Harshman , Benjamin J. Kovalick , Nikhil Sharma
CPC classification number: F16H57/029 , E02F3/8152 , E02F9/202 , E02F3/764 , E02F3/844
Abstract: Disclosed is a seal assembly for a grading machine. The grading machine may include a machine body, a blade assembly, and a circle assembly supporting the blade assembly. The circle assembly may include a circle having a plurality of gear teeth. The grading machine may also include a drawbar assembly connecting the circle assembly to the machine body. The seal assembly may include a non-metallic seal component extending circumferentially around an inner circumference of the circle assembly for sealing the plurality of gear teeth.
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公开(公告)号：US11976444B2
公开(公告)日：2024-05-07
申请号：US17541484
申请日：2021-12-03
Applicant: Deere & Company
Inventor： Luke J. Kurth , Sean A. Mairet , Billy J. Naderman
CPC classification number: E02F9/262 , E02F3/7636 , E02F3/841 , E02F3/844 , E02F9/2041 , E02F9/265
Abstract: A work machine is provided with grade control capability using an imaging system, e.g., rather than GPS. The work machine includes at least one work implement for working at least part of a terrain, and first sensors (e.g., cylinder sensors) generate signals corresponding to positions of the work implement. Second sensors (e.g., stereo cameras) generate signals corresponding to positions of representative features of the terrain (e.g., curbs) in a field of view. A controller receives the signals and determines in a local reference system independent of a global reference system: first position information corresponding to the work implement; and second position information corresponding to the representative features. According to a selected control mode, target parameters for the work implement are determined based on the second position information corresponding to the representative features, and output signals are generated corresponding to a difference between the first position information and the target parameters.
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公开(公告)号：US20240117593A1
公开(公告)日：2024-04-11
申请号：US17963487
申请日：2022-10-11
Applicant: Deere & Company
Inventor： John M. Hageman , Joshua T. Lawson , Suraj Amatya , Francois Stander
Abstract: A system and method are provided for work cycle tracking for a self-propelled work vehicle having an integrated or drawn/pushed implement, for example comprising a scraper, and a loading container for receiving material worked thereby. First sensors generate data corresponding to operating parameters of the work vehicle, and second sensors generate data corresponding to operating parameters of the implement. Data storage includes, for each of various work states associated with the work cycle, correlations between operating parameters, of the work vehicle and/or implement, and a start or completion of the respective work state. A controller determines a current work state of the various work states associated with the work cycle based on current input data from the first and second sets of sensors, with respect to the stored correlations, and generates one or more output signals based on the determined work state.
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