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公开(公告)号：US20200063397A1
公开(公告)日：2020-02-27
申请号：US16487466
申请日：2018-02-23
Applicant: Komatsu Ltd.
Inventor： Kazuhiro Hatake , Yukinori Matsumura
Abstract: A display system includes: an image data acquisition unit that acquires a front image and a side image captured by an imaging device mounted on a work machine having a swing body swinging about a swing axis and working equipment supported by the swing body, the front image including at least an image in a front direction with respect to the swing axis, the side image including at least an image in a lateral direction to the swing axis, the lateral direction being orthogonal to the front direction; and a display control unit that displays the front image and the side image acquired by the image data acquisition unit on a display device existing outside the work machine.
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2.发明授权公开(公告)号：US12139880B2
公开(公告)日：2024-11-12
申请号：US16973635
申请日：2019-07-18
Applicant: KOMATSU LTD.
Inventor： Takeshi Oi , Kazuhiro Hatake
Abstract: A loading machine includes a swing body, work equipment provided on the swing body, a posture measuring device to measure a posture of the swing body, and a depth detecting device to detect a depth of at least part of a surrounding of the swing body in a detection range. A control device controls the loading machine. The control device includes a posture information acquisition unit that acquires posture information indicating the posture measured, a detection information acquisition unit that acquires depth information indicating the depth detected, a target azimuth direction determination unit, and an output unit. The target azimuth direction determination unit determines a target azimuth direction in swing control based on the posture information and the depth information acquired when the swing body is stopped swinging. The output unit outputs a swing operation signal based on the target azimuth direction.
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公开(公告)号：US11661725B2
公开(公告)日：2023-05-30
申请号：US16644265
申请日：2018-10-02
Applicant: Komatsu Ltd.
Inventor： Tomoki Konda , Yusuke Saigo , Kazuhiro Hatake
CPC classification number: E02F9/265 , E02F3/32 , B60Y2200/412 , E02F3/435 , E02F9/2004 , E02F9/2296
Abstract: A loaded machine information acquisition unit acquires position information and azimuth direction information of a transport vehicle. An earth removal position-specifying unit specifies an earth removal position for loading a load target onto the transport vehicle, based on the position information and the azimuth direction information. A bucket position-specifying unit specifies a position of a bucket. An operation signal generation unit generates an operation signal for moving the bucket from the specified position to the earth removal position.
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公开(公告)号：US11619025B2
公开(公告)日：2023-04-04
申请号：US16652773
申请日：2019-02-27
Applicant: Komatsu Ltd.
Inventor： Tomoki Konda , Yusuke Saigo , Ryuta Okuwaki , Kazuhiro Hatake
Abstract: A control device outputs an operation signal of a work equipment and a swing body for moving a work equipment to a loading point when receiving a loading command signal. The control device does not output a dumping operation signal for causing the bucket to dump earth in a case where an azimuth direction in which the swing body faces is within a first region from a starting point azimuth direction to a predetermined reference azimuth direction, the starting point azimuth direction being an azimuth direction in which the swing body faces when the loading command signal is received. The control device outputs the dumping operation signal in a case where the azimuth direction is within a second region from the reference azimuth direction to an end point azimuth direction in which the swing body faces when the work equipment is positioned at the loading point.
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公开(公告)号：US11447928B2
公开(公告)日：2022-09-20
申请号：US16487466
申请日：2018-02-23
Applicant: Komatsu Ltd.
Inventor： Kazuhiro Hatake , Yukinori Matsumura
Abstract: A display system includes: an image data acquisition unit that acquires a front image and a side image captured by an imaging device mounted on a work machine having a swing body swinging about a swing axis and working equipment supported by the swing body, the front image including at least an image in a front direction with respect to the swing axis, the side image including at least an image in a lateral direction to the swing axis, the lateral direction being orthogonal to the front direction; and a display control unit that displays the front image and the side image acquired by the image data acquisition unit on a display device existing outside the work machine.
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Patent Agency Ranking
公开(公告)号：US11976438B2
公开(公告)日：2024-05-07
申请号：US16973585
申请日：2019-07-18
Applicant: KOMATSU LTD.
Inventor： Tomoki Konda , Kazuhiro Hatake
CPC classification number: E02F3/439 , E02F3/32 , E02F9/2004 , E02F9/2041 , B60K35/00 , E02F9/26
Abstract: A loading machine includes a swing body and work equipment attached to the swing body. The work equipment has a bucket. A control device of the loading machine includes an operation signal input unit that receives an input of a loading command signal from an operator, and an operation signal output unit. The operation signal output unit outputs operation signals of the work equipment and the swing body to move the bucket to a loading position above a loading target in a case in which the loading command signal is received. The operation signal output unit outputs a dumping operation signal to perform dumping to the bucket when the swing body faces a dump start azimuth direction that is closer to the swing body in a swing direction than an end point azimuth direction in which the swing body faces when the work equipment is positioned at the loading position.
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公开(公告)号：US11952745B2
公开(公告)日：2024-04-09
申请号：US17045858
申请日：2019-03-12
Applicant: KOMATSU LTD.
Inventor： Yusuke Saigo , Kazuhiro Hatake
CPC classification number: E02F9/123 , E02F3/308 , E02F3/434 , E02F9/2033 , E02F9/2228 , E02F9/2292 , F15B7/001 , F15B15/20
Abstract: A movement processing unit generates a work equipment operation signal for moving a bucket to a loading point and a swing operation signal related to a target swing speed, based on a command for starting an automatic movement of the bucket. A target speed changing unit changes the target swing speed so that the work equipment does not interfere with the loading target during a swing of a swing body.
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公开(公告)号：US11286638B2
公开(公告)日：2022-03-29
申请号：US16647723
申请日：2018-08-13
Applicant: Komatsu Ltd.
Inventor： Yusuke Saigo , Kazuhiro Hatake
Abstract: An avoidance position specification unit specifies an interference avoidance position that is higher than a loading object and has no loading object therebelow. A timing determination unit determines a swing start timing based on a remaining swing angle formed by a straight line that extends from a center of swing to a work equipment and a straight line that extends from the center of swing to an interference avoidance position, and a height of the interference avoidance position. An operation signal output unit outputs an operation signal of the work equipment in a case of not reaching the swing start timing and outputs an operation signal for swinging a swing body at swing speed higher than that when not reaching the swing start timing and an operation signal of the work equipment, in a case of reaching the swing start timing.
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公开(公告)号：US20200232185A1
公开(公告)日：2020-07-23
申请号：US16652735
申请日：2019-02-27
Applicant: Komatsu Ltd.
Inventor： Yusuke Saigo , Kazuhiro Hatake
Abstract: A control device generates an operation signal for controlling a pressure of hydraulic oil on a downstream side of the swing motor in a hydraulic device based on an azimuth direction, a swing speed, and a target stopping azimuth direction of a swing body during braking of a swing motor.
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公开(公告)号：US12241222B2
公开(公告)日：2025-03-04
申请号：US17999610
申请日：2021-05-14
Applicant: KOMATSU LTD.
Inventor： Kazuhiro Hatake , Ryuta Okuwaki
IPC: E02F3/43
Abstract: A stage specifying unit specifies a work stage of a work machine. A target decision unit decides target postures of a boom and an arm based on the specified work stage. A control amount calculation unit calculates a control amount of the boom and the arm based on the target postures. A limiting unit limits the control amount of the arm such that a change amount of the control amount of the arm is within a predetermined change amount when the specified work stage is a work stage related to a hoist swing.
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