-
公开(公告)号：US20210164192A1
公开(公告)日：2021-06-03
申请号：US17267061
申请日：2019-08-28
Applicant: KOMATSU LTD.
Inventor： Tomoki KONDA , Kazuhiro HATAKE , Takeshi OI , Masanori AIZAWA
Abstract: A loading machine includes a swing body and work equipment with a bucket. A control device of the loading machine includes a loading target specifying unit that specifies a position and shape of a loading target, an avoidance position specifying unit, and a movement processing unit. The avoidance position specifying unit specifies an interference avoidance position based on the position and shape of the loading target. The movement processing unit outputs an operation signal to drive only the swing body until the bucket reaches the interference avoidance position from a loading position above the loading target, to cause the bucket to move to the interference avoidance position. The movement processing unit outputs an operation signal to drive the swing body and the work equipment after the bucket has reached the interference avoidance position, to cause the bucket to move to an excavation position above an excavation target.
-
公开(公告)号：US20210246627A1
公开(公告)日：2021-08-12
申请号：US17269116
申请日：2019-08-28
Applicant: KOMATSU LTD.
Inventor： Tomoki KONDA , Takeshi OI , Atsunori KIKUCHI
Abstract: A work machine includes work equipment. A control device of the work machine includes a trajectory generation unit, and an operation signal output unit. The trajectory generation unit generates a target trajectory of the work equipment according to an excavation curve ratio determined in advance. The excavation curve ratio is expressed as a ratio of an excavation depth to an excavation length. The operation signal output unit outputs an operation signal for the work equipment according to the target trajectory.
-
Patent Agency Ranking
公开(公告)号：US20230074375A1
公开(公告)日：2023-03-09
申请号：US17800014
申请日：2021-04-16
Applicant: KOMATSU LTD.
Inventor： Ryuta OKUWAKI , Takeshi OI , Kenji OKAMURA
Abstract: An automatic control determination unit determines whether to start automatic dumping control. A dumping control unit generates a first command to rotate a bucket in a dump direction until an inclination of the bucket reaches a predetermined dumping completion angle upon determining to start the automatic dumping control. The dumping control unit generates a second command to rotate a boom in a raising direction during a period until the inclination of the bucket reaches the dumping completion angle from an inclination at the time of start of the automatic dumping control.
-
4.发明申请公开(公告)号：US20250027290A1
公开(公告)日：2025-01-23
申请号：US18907805
申请日：2024-10-07
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 sensor 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.
-
公开(公告)号：US20220316174A1
公开(公告)日：2022-10-06
申请号：US17618954
申请日：2020-06-30
Applicant: KOMATSU LTD.
Inventor： Tomoki KONDA , Takeshi OI , Kenjiro SHIMADA , Kenji OHIWA
Abstract: A work machine comprises: a work implement; a hydraulic cylinder; a hydraulic pump that supplies the hydraulic oil to the hydraulic cylinder via a hydraulic circuit; a relief valve that can set a relief pressure of the hydraulic circuit to either a first set pressure or a second set pressure higher than the first set pressure; a detection unit that detects at least one of a pressure of the hydraulic oil in the hydraulic circuit and a speed of the work implement; and a relief pressure changing unit that changes a relief pressure of the relief valve from the first set pressure to the second set pressure based on a detection value of at least one of the pressure of the hydraulic oil in the hydraulic circuit and the speed of the work implement when the controlled state of the work implement is the excavation state.
-
公开(公告)号：US20210254312A1
公开(公告)日：2021-08-19
申请号：US17251458
申请日：2019-07-19
Applicant: KOMATSU LTD.
Inventor： Takeshi OI , Tomoki KONDA
Abstract: A control device for a work machine includes a three-dimensional map acquisition unit, a boundary specification unit, and an excavation start point determination unit. The work machine includes a travel body, a swing body supported by the travel body, and work equipment provided to the swing body and having a bucket. The three-dimensional map acquisition unit acquires a three-dimensional map indicating a shape around the work machine. The boundary specification unit specifies a traveling road boundary line in terrain shown by the three-dimensional map. The traveling road boundary line is a boundary line between a traveling road surface on which a transport vehicle is capable of traveling, and an excavation target by the work equipment. The excavation start point determination unit determines a point on the traveling road boundary line or a point above the traveling road boundary line as an excavation start point by the work equipment.
-
公开(公告)号：US20210246625A1
公开(公告)日：2021-08-12
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.
-
-
-
-
-
-
Search Results
7
records
(took 0.013 seconds)
