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公开(公告)号：US11371218B2
公开(公告)日：2022-06-28
申请号：US16323357
申请日：2017-10-25
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Takahiro Shimojo , Akifumi Inamaru , Toshihiro Kawano , Yasuhito Yonezawa , Yosuke Kogawa
Abstract: A control system for a work vehicle includes a controller. The controller receives actual topography information of a work target. The controller determines a design surface that is positioned below the actual topography. The controller generates a command signal to move a work implement of the work vehicle along the design surface. The controller determines if slip of the work vehicle has occurred. Upon determining that slip has occurred, the controller changes the design surface to a position equal to or higher than a blade tip position of the work implement when the slip occurred.
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公开(公告)号：US11408149B2
公开(公告)日：2022-08-09
申请号：US16083635
申请日：2017-07-25
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Akifumi Inamaru , Seiji Nagano , Kenji Yamamoto , Kazuyuki Kirino , Yasuhito Yonezawa , Yosuke Kogawa , Takahiro Shimojo
Abstract: A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information, which indicates an actual topography of a work target. The storage device stores design topography information, which indicates a final design topography that is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device, and the design topography information from the storage device. The controller determines an intermediate design topography positioned above the actual topography and below the final design topography. The controller generates a command signal to move the work implement based on the intermediate design topography. The intermediate design topography includes a plurality of intermediate design surfaces divided in the traveling direction of the work vehicle. Inclination angles of at least two of the intermediate design surfaces differ from each other.
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公开(公告)号：US11268264B2
公开(公告)日：2022-03-08
申请号：US16330971
申请日：2017-10-25
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Takahiro Shimojo , Akifumi Inamaru , Toshihiro Kawano , Yasuhito Yonezawa , Yosuke Kogawa
Abstract: A control system for a work vehicle includes a controller. The controller receives actual topography information of a work target. The controller determines a design surface that is positioned below the actual topography. The controller generates a command signal to move the work implement along the design surface. The controller determines if slip of the work vehicle has occurred. The controller raises the design surface when the blade tip of the work implement is positioned below an initial target surface when the slip occurs. The initial target surface is the design surface before the occurrence of the slip.
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公开(公告)号：US11454006B2
公开(公告)日：2022-09-27
申请号：US16482079
申请日：2018-05-09
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Takahiro Shimojo
Abstract: 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.
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公开(公告)号：US10787789B2
公开(公告)日：2020-09-29
申请号：US16083152
申请日：2017-07-25
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Akifumi Inamaru , Seiji Nagano , Kenji Yamamoto , Yasuhito Yonezawa , Yosuke Kogawa , Takahiro Shimojo
Abstract: A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information, which indicates an actual topography of a work target. The storage device stores design topography information, which indicates a final design topography that is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device. The controller acquires the design topography information from the storage device. The controller generates a command signal to move the work implement along a locus that is more gently sloped than the actual topography when the actual topography positioned below the final design topography is sloped.
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Patent Agency Ranking
公开(公告)号：US11668071B2
公开(公告)日：2023-06-06
申请号：US17150282
申请日：2021-01-15
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Akifumi Inamaru , Yasuhito Yonezawa , Takahiro Shimojo
CPC classification number: E02F9/2029 , E02F9/20 , E02F9/2033 , G06T7/529 , G06T2207/30181
Abstract: A control system for a work vehicle includes an actual topography acquisition device, a storage device, a soil amount acquisition device, and a controller. The actual topography acquisition device acquires actual topography information indicating an actual topography of a work target. The storage device stores design topography information indicating a final design topography. The soil amount acquisition device generates a soil amount signal indicating a held soil amount of the work implement. The controller acquires the actual topography information from the actual topography acquisition device and acquires the design topography information from the storage device. The controller generates a command signal for moving the work implement at position that is between the actual topography and the final design topography and is a predetermined distance above the actual topography. The controller acquires the soil amount signal and changes the predetermined distance based on the held soil amount.
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7.发明授权公开(公告)号：US11422563B2
公开(公告)日：2022-08-23
申请号：US16471241
申请日：2018-02-22
Applicant: KOMATSU LTD.
Inventor： Junji Harada , Eiji Ishibashi , Toshinori Matsushita , Takahiro Shimojo
Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller programmed to acquire actual topography data indicating an actual surface of a work target, and replace the actual surface with a design surface.
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8.发明授权公开(公告)号：US11053667B2
公开(公告)日：2021-07-06
申请号：US16469403
申请日：2018-02-22
Applicant: KOMATSU LTD.
Inventor： Junji Harada , Eiji Ishibashi , Takahiro Shimojo
Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller acquires actual topography data indicating an actual surface of a work target. The controller vertically displaces a target design surface using the actual surface as a reference.
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公开(公告)号：US11408150B2
公开(公告)日：2022-08-09
申请号：US16482029
申请日：2018-04-10
Applicant: KOMATSU LTD.
Inventor： Shigeru Yamamoto , Eiji Ishibashi , Takahiro Shimojo
Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller obtains first topographical data indicative of a topography of a work target before filling work. The controller obtains blade tip position data indicative of a blade tip position of the work implement during the filling work. The controller obtains second topographical data indicative of a compacted topography after the filling work. The controller determines a compression rate of the work target from the first topographical data, the blade tip position data, and the second topographical data.
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公开(公告)号：US10927525B2
公开(公告)日：2021-02-23
申请号：US16083221
申请日：2017-07-25
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Akifumi Inamaru , Yasuhito Yonezawa , Takahiro Shimojo
Abstract: A work vehicle control system includes an actual topography acquisition device, a storage device, and a controller. The actual topography acquisition device acquires actual topography information, which indicates the actual topography of a work target. The storage device stores design topography information, which indicates a final design topography that is a target topography of the work target. The controller acquires the actual topography information from the actual topography acquisition device. The controller acquires the design topography information from the storage device. The controller generates a command signal to move the work implement to a position that is between the actual topography and the final design topography, and a predetermined distance above the actual topography.
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