公开(公告)号：US20240151009A1

公开(公告)日：2024-05-09

申请号：US18549011

申请日：2022-01-20

申请人： KOMATSU LTD.

发明人： Akira TAKENO ,  Shinichi KITAO ,  Akihiro KOYAMA

IPC分类号： E02F9/26 ,  E02F9/20 ,  E02F9/22

CPC分类号： E02F9/262 ,  E02F9/2083 ,  E02F9/226

摘要： A work machine includes a vehicle body, a travel direction detecting section that detects a travel direction of the vehicle body, an object detecting section that detects an object in a predetermined direction of the vehicle body, a braking section, a setting section. and a control section. The braking section is able to implement automatic braking of the vehicle body and exert a braking force based on a detection of the object. The setting section sets the braking section so that the automatic braking force can be or cannot be exerted. The control section controls the setting section to set the braking section so that the braking force can be exerted when the vehicle body is traveling in the predetermined direction, and to set the braking section so that the braking force cannot be exerted when the vehicle body is traveling in a direction other than the predetermined direction.

公开(公告)号：US20240151001A1

公开(公告)日：2024-05-09

申请号：US18284150

申请日：2022-01-19

申请人： KOMATSU LTD.

发明人： Takuya SONODA ,  Takashi MAEDA ,  Yoshihide NAKAE ,  Youichirou KIMURA

IPC分类号： E02F9/20 ,  E02F3/76

CPC分类号： E02F9/2087 ,  E02F3/76

摘要： A steering mechanism is used to navigate the direction of travel of a motor grader. A directional correction input device is manipulatable by an operator. A controller, during automatic control of the steering operation by the steering mechanism, controls the steering mechanism in a manner that the direction of travel is adjustable leftward or rightward through a certain angle based on an operation command inputted through the directional correction input device.

公开(公告)号：US11965319B2

公开(公告)日：2024-04-23

申请号：US17419902

申请日：2020-02-17

申请人： KOMATSU LTD.

发明人： Junji Harada ,  Kentaro Takayama

IPC分类号： G01M17/00 ,  E02F9/20 ,  E02F9/26

CPC分类号： E02F9/264 ,  E02F9/202 ,  E02F9/2025

摘要： 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.

公开(公告)号：US20240125089A1

公开(公告)日：2024-04-18

申请号：US18277657

申请日：2022-03-16

申请人： Komatsu Ltd.

发明人： Tomofumi Hokari ,  Yuichiro Yasuda ,  Kenji Nozaki ,  Kosuke Iwata

IPC分类号： E02F9/20 ,  E02F9/26

CPC分类号： E02F9/2025 ,  E02F9/26

摘要： An authentication unit performs authentication of an operator. A storage unit stores setting data associated with a plurality of operators. A vehicle body control unit outputs a control signal to drive a vehicle body of the work machine with power supplied by a power source, based on the setting data associated with the authenticated operator. The authentication unit receives the authentication when the power source is stopped and does not receive the authentication when the power source is driven.

公开(公告)号：US11959255B2

公开(公告)日：2024-04-16

申请号：US16971707

申请日：2019-03-11

申请人： Komatsu Ltd.

发明人： Yohei Seki ,  Masataka Ozaki

IPC分类号： E02F9/00 ,  E02F3/00 ,  E02F9/20 ,  E02F9/26 ,  G01B11/00 ,  G01S17/00 ,  G01S17/89 ,  E02F3/43 ,  G01B11/245

CPC分类号： E02F9/262 ,  E02F9/2041 ,  G01S17/89 ,  E02F3/431 ,  G01B11/245

摘要： A work machine control device includes a measurement-data acquisition unit that acquires measurement data of a three-dimensional measurement device that is mounted on a work machine including work equipment and measures a three-dimensional shape including a ridgeline of a work target on which the working equipment performs work, and a target calculation unit that calculates and outputs, based on the measurement data regarding the ridgeline of the work target, a distance from the work machine to the work target or an angle of repose of the work target.

公开(公告)号：US11952749B2

公开(公告)日：2024-04-09

申请号：US17289423

申请日：2019-11-07

申请人： KOMATSU LTD.

发明人： Kenichi Yamada ,  Shogo Miyazaki ,  Akira Takeno ,  Shota Yamawaki

IPC分类号： E02F9/22 ,  E02F9/20 ,  F04D13/02 ,  F04D15/00 ,  F15B15/18 ,  F16H61/4008 ,  F16H61/4157 ,  F16H61/472

CPC分类号： E02F9/2253 ,  E02F9/2004 ,  E02F9/2292 ,  E02F9/2296 ,  F04D13/028 ,  F04D15/00 ,  F15B15/18 ,  F16H61/4008 ,  F16H61/4157 ,  F16H61/472

摘要： A control device for a power machine includes a target circuit pressure specifying unit configured to specify a target circuit pressure of the hydrostatic continuously variable transmission, a measurement value acquisition unit configured to acquire an actual circuit pressure of the hydrostatic continuously variable transmission, a brake torque determination unit configured to determine a brake torque based on the target circuit pressure and the actual circuit pressure, and a pump control unit configured to control the hydraulic pump based on the brake torque. The brake torque is a torque consumed by the hydraulic pump.

公开(公告)号：US20240110722A1

公开(公告)日：2024-04-04

申请号：US18273793

申请日：2022-02-22

申请人： Komatsu Ltd.

发明人： Takahiro Kakizaki ,  Takashi Hirota ,  Atsushi Miyamoto

IPC分类号： F24F13/16 ,  F24F1/029

CPC分类号： F24F13/16 ,  F24F1/029 ,  F24F7/06

摘要： The louver 1 includes a first member 2 including a lid portion 22, slits 24 disposed at intervals from the lid portion 22, and rising portions 25 and rising portions 26 extending from peripheral edge portions of the slits 24 toward one side in a depth direction and a second member 3 including a lid portion 32, slits 34 disposed at intervals from the lid portion 32, and rising portions 35 and rising portions 36 extending from the peripheral edge portions of the slits 34 toward the other side in the depth direction. The first member 2 and the second member 3 are disposed to face each other and the slits 24 of the first member 2 and the slits 34 of the second member 3 are disposed to be shifted from each other.

公开(公告)号：US20240102261A1

公开(公告)日：2024-03-28

申请号：US18274798

申请日：2022-02-04

申请人： KOMATSU LTD.

发明人： Yosuke YAMAGOE

IPC分类号： E02F3/43 ,  E02F3/96 ,  E02F9/22 ,  F15B1/26 ,  F15B13/04

CPC分类号： E02F3/435 ,  E02F3/963 ,  E02F9/2203 ,  E02F9/2267 ,  F15B1/26 ,  F15B13/0401

摘要： A boom cylinder drives a boom, and includes a head side oil chamber and a bottom side oil chamber. A first valve includes a first opening for discharging oil in the head side oil chamber to an oil tank, and supplies oil from a hydraulic pump to the head side oil chamber. A second valve includes a second opening for discharging oil in the bottom side oil chamber to the oil tank, and supplies oil from the hydraulic pump to the bottom side oil chamber. A controller individually controls an opening degree of the first opening and an opening degree of the second opening, during work including manipulation of the boom.

公开(公告)号：US11939743B2

公开(公告)日：2024-03-26

申请号：US17419881

申请日：2020-02-17

申请人： KOMATSU LTD.

发明人： Junji Harada

IPC分类号： E02F3/84 ,  E02F3/76 ,  E02F9/22 ,  E02F9/26

CPC分类号： E02F3/844 ,  E02F9/262 ,  E02F9/265 ,  E02F3/7618 ,  E02F9/2225

摘要： 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.

公开(公告)号：US11939742B2

公开(公告)日：2024-03-26

申请号：US17051064

申请日：2019-03-13

申请人： Komatsu Ltd.

发明人： Satoru Shintani ,  Yoshito Kumakura ,  Daiki Arimatsu

IPC分类号： B60W60/00 ,  B60W30/095 ,  B60W40/06 ,  E02F3/43 ,  E02F3/96 ,  E02F9/22 ,  E02F9/26 ,  G06N20/00

CPC分类号： E02F3/435 ,  E02F3/963 ,  E02F9/2228 ,  E02F9/265 ,  E02F9/2285

摘要： A type information input unit receives an input of type information for identifying an attachment. A storage unit stores in advance correspondence between the type information and a weight or weight classification of the attachment. A specification unit specifies a corresponding weight or weight classification based on the type information input to the type information input unit.