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公开(公告)号：US11993923B2
公开(公告)日：2024-05-28
申请号：US17598958
申请日：2020-05-20
Applicant: KOMATSU LTD.
Inventor： Yukihisa Takaoka , Kota Beppu , Yuto Fujii , Toru Kurakane
CPC classification number: E02F9/262 , E02F9/265 , E02F3/844 , E02F9/2228 , E02F9/2267
Abstract: A controller is configured to determine a target excavation depth of a first pass based on a position of an excavation end, a target soil amount, and an excavation distance. The controller is configured to move a work implement to the target excavation depth of the first pass to execute an excavation of the first pass. The controller is configured to acquire an actual soil amount excavated in the first pass. The controller is configured to modify the target soil amount based on the actual soil amount. The controller is configured to determine the target excavation depth of a second pass based on the modified target soil amount. The controller is configured to move the work implement to the target excavation depth of the second pass to execute the excavation of the second pass.
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公开(公告)号：US10774505B2
公开(公告)日：2020-09-15
申请号：US15525359
申请日：2017-01-13
Applicant: Komatsu Ltd.
Inventor： Yuto Fujii , Kota Beppu
Abstract: A work machine control system includes: an acquisition unit configured to acquire a plurality of pieces of current topographical data of a work site where a work machine including a work unit performs work; a setting unit configured to set predetermined first current topographical data and second current topographical data from the plurality of pieces of current topographical data acquired by the acquisition unit; and an arithmetic unit configured to calculate a difference between the first current topographical data and the second current topographical data, and obtain revision data to revise the first current topographical data based on the difference and parameter information related to the current topography of the work site.
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Patent Agency Ranking
公开(公告)号：US10604912B2
公开(公告)日：2020-03-31
申请号：US15658922
申请日：2017-07-25
Applicant: KOMATSU LTD.
Inventor： Kazuhiro Hashimoto , Kenjiro Shimada , Kota Beppu
Abstract: A current terrain acquisition device acquires current terrain information indicating a current terrain to be worked. A controller is configured to generate an inclined virtual surface extending from a current position of the work vehicle. The controller is configured to decide an estimated held soil volume of a work implement of the work vehicle when the work implement is moved along the virtual surface in the current terrain. The controller is configured to decide whether the estimated held soil volume has reached a predetermined held soil volume threshold. The controller is configured to set the virtual surface extending from the current position of the work vehicle when the estimated held soil volume has reached the held soil volume threshold as a first virtual design surface, and generate a command signal to the work implement to move the work implement along the virtual design surface.
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公开(公告)号：US20180202129A1
公开(公告)日：2018-07-19
申请号：US15525359
申请日：2017-01-13
Applicant: Komatsu Ltd.
Inventor： Yuto Fujii , Kota Beppu
Abstract: A work machine control system includes: an acquisition unit configured to acquire a plurality of pieces of current topographical data of a work site where a work machine including a work unit performs work; a setting unit configured to set predetermined first current topographical data and second current topographical data from the plurality of pieces of current topographical data acquired by the acquisition unit; and an arithmetic unit configured to calculate a difference between the first current topographical data and the second current topographical data, and obtain revision data to revise the first current topographical data based on the difference and parameter information related to the current topography of the work site.
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公开(公告)号：US20180202128A1
公开(公告)日：2018-07-19
申请号：US15526104
申请日：2017-01-13
Applicant: Komatsu Ltd.
Inventor： Toru Kurakane , Yuto Fujii , Kota Beppu , Yoshio Koda
Abstract: A work machine control system includes: an acquisition unit configured to acquire a plurality of pieces of current topographical data indicating a current topography of a work site where a work machine performs work; and a combining unit configured to generate combined current topographical data of the work site in accordance with a predetermined rule based on the plurality of pieces of current topographical data acquired in the acquisition unit.
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公开(公告)号：US10731322B2
公开(公告)日：2020-08-04
申请号：US15526104
申请日：2017-01-13
Applicant: Komatsu Ltd.
Inventor： Toru Kurakane , Yuto Fujii , Kota Beppu , Yoshio Koda
Abstract: A work machine control system includes: an acquisition unit configured to acquire a plurality of pieces of current topographical data indicating a current topography of a work site where a work machine performs work; and a combining unit configured to generate combined current topographical data of the work site in accordance with a predetermined rule based on the plurality of pieces of current topographical data acquired in the acquisition unit.
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公开(公告)号：US10669699B2
公开(公告)日：2020-06-02
申请号：US15659923
申请日：2017-07-26
Applicant: KOMATSU LTD.
Inventor： Kazuhiro Hashimoto , Kenjiro Shimada , Kota Beppu , Masayuki Nakagawa
Abstract: A current terrain acquisition device acquires current terrain information. The current terrain information indicates the current terrain to be worked, and includes the height of the current terrain at a plurality of points. A controller is configured to decide the smoothed height for each of the plurality of points. The controller is configured to decide a smoothed current terrain that includes the smoothed height of the plurality of points. The controller is configured to decide a virtual design surface on the basis of the smoothed current terrain. The controller is configured to generate a command signal to a work implement of the work vehicle to move the work implement along the virtual design surface.
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