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1.发明授权公开(公告)号：US11578470B2
公开(公告)日：2023-02-14
申请号：US16466454
申请日：2018-02-15
Applicant: KOMATSU LTD.
Inventor： Junji Harada , Shigeru Yamamoto
Abstract: A control system for the work vehicle includes a display, an input device, and a controller. The controller displays a current position of a work vehicle on a screen of a display. The controller receives a first input signal indicating an input operation by an operator from a input device. The controller determines, as a first position, the position of the work vehicle when the first input signal is received. The controller displays the first position on the screen of the display. The controller receives a second input signal indicating an input operation by an operator from the input device. The controller determines, as the second position, the position of the work vehicle when the second input signal is received. The controller determines a target design surface indicating a target trajectory of a work implement based on reference position information including at least the first position and the second position.
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公开(公告)号：US11661724B2
公开(公告)日：2023-05-30
申请号：US16644398
申请日：2019-02-19
Applicant: KOMATSU LTD.
Inventor： Junji Harada
CPC classification number: E02F9/262 , E02F3/7618 , E02F9/2278
Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes an operating device that outputs an operation signal indicative of an operation by an operator, and a controller that communicates with the operating device and controls the work implement. The controller determines a target design topography indicative of a target topography. The controller generates a command signal to operate the work implement in accordance with the target design topography. When a tilt angle of the work implement is changed with an operation of the operating device, the controller corrects the tilt angle of the work implement in accordance with the changed tilt angle.
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公开(公告)号：US11608611B2
公开(公告)日：2023-03-21
申请号：US16644528
申请日：2019-02-19
Applicant: KOMATSU LTD.
Inventor： Junji Harada
Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller that controls the work implement. The controller obtains a first design topography. The controller determines a second design topography. At least a portion of the second design topography is positioned above the first design topography. The controller generates a command signal to operate the work implement in accordance with the second target design topography. The controller changes a tilt angle of the work implement when at least a portion of the second design topography is positioned below the first design topography.
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4.发明授权公开(公告)号：US11174619B2
公开(公告)日：2021-11-16
申请号：US16084648
申请日：2017-07-26
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Junji Harada , Akifumi Inamaru , Seiji Nagano , Yasuhito Yonezawa
Abstract: When a current landscape includes an upward slope and a downward slope existing ahead of the upward slope, a controller determines a virtual design surface including a first design surface inclined at a smaller angle than the upward slope and a second design surface inclined with respect to the first design surface at a smaller angle than the downward slope. The controller generates a command signal that causes a work implement to move along the virtual design surface.
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公开(公告)号：US11965319B2
公开(公告)日：2024-04-23
申请号：US17419902
申请日：2020-02-17
Applicant: KOMATSU LTD.
Inventor： Junji Harada , Kentaro Takayama
CPC classification number: E02F9/264 , E02F9/202 , E02F9/2025
Abstract: A work machine includes a vehicle body and a work implement attached to the vehicle body. A system calibrates the work machine by using an external measurement apparatus. The system includes an attitude sensor, a positional sensor attached to the vehicle body, a storage device, an input device and a processor. The attitude sensor outputs attitude data indicative of an attitude of the vehicle body. The storage device stores machine data indicative of a position of the positional sensor in a vehicle body coordinate system. The input device receives an input of calibration data including a position of a predetermined measurement point on the work machine measured by the external measurement apparatus, and a position of the positional sensor measured by the external measurement apparatus. The processor calibrates the machine data based on the calibration data and the attitude data.
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Patent Agency Ranking
公开(公告)号：US11939743B2
公开(公告)日：2024-03-26
申请号：US17419881
申请日：2020-02-17
Applicant: KOMATSU LTD.
Inventor： Junji Harada
CPC classification number: E02F3/844 , E02F9/262 , E02F9/265 , E02F3/7618 , E02F9/2225
Abstract: A work machine includes a work implement. A control system for the work machine includes a controller configured to operate the work implement according to a target trajectory for a backward movement while the work machine is moving backward. A method is performed by a processor for controlling a work machine including a work implement. The method includes operating the work implement according to a target trajectory for a backward movement while the work machine is moving backward.
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公开(公告)号：US11454007B2
公开(公告)日：2022-09-27
申请号：US16644520
申请日：2019-02-18
Applicant: KOMATSU LTD.
Inventor： Junji Harada , Eiji Ishibashi
Abstract: 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.
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8.发明授权公开(公告)号：US11041289B2
公开(公告)日：2021-06-22
申请号：US16083112
申请日：2017-07-26
Applicant: KOMATSU LTD.
Inventor： Eiji Ishibashi , Junji Harada , Akifumi Inamaru , Seiji Nagano , Yasuhito Yonezawa
Abstract: A controller acquires an excavation start position at which a work implement starts excavation. When a current landscape includes an upward slope and a downward slope existing ahead of the upward slope and the excavation start position is on the upward slope, the controller determines a first virtual design surface including a first design surface located below the current landscape and inclined at a smaller angle than the upward slope. The controller generates a command signal that causes the work implement to move along the first virtual design surface.
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公开(公告)号：US11643789B2
公开(公告)日：2023-05-09
申请号：US16643217
申请日：2019-02-18
Applicant: KOMATSU LTD.
Inventor： Junji Harada , Eiji Ishibashi
CPC classification number: E02F3/841 , E02F3/7618 , E02F9/262 , E02F9/264
Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes an operating device and a controller. The operating device outputs an operation signal indicative of an operation by an operator. The controller communicates with the operating device and controls the work implement. The controller determines a first target design topography. The controller generates a command signal to operate a work implement in accordance with the first target design topography. The controller obtains a displacement amount of the work implement with respect to the first target design topography upon receiving the operation signal indicative of the operation of the work implement during work in accordance with the first target design topography. The controller determines a second target design topography based on the displacement amount. The controller generates a command signal to operate the work implement in accordance with the second target design topography.
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10.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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