公开(公告)号：US20240240438A1

公开(公告)日：2024-07-18

申请号：US18574179

申请日：2022-10-03

Applicant: KOMATSU LTD.

Inventor： Takashi YOKOO ,  Yuki SHIMANO ,  Yousuke UCHIDA

IPC: E02F9/26 ,  E02F9/20 ,  G06T3/40

CPC classification number: E02F9/265 ,  E02F9/2025 ,  E02F9/261 ,  G06T3/40

Abstract: A display system includes a display and a controller. The controller acquires machine position data indicative of a position of a work machine. The controller acquires a separation distance in a width direction of the revolving body between a work point of the work implement and a revolving axis. The work point is spaced from the revolving axis in the width direction. The controller acquires target position data indicative of a target position of the work implement. The controller causes the display to display a guideline indicative of the target position and a guide image indicative of the position of the work machine based on the machine position data and the target position data. The guide image includes a first image and a second image. The first image indicates a position of the revolving axis. The second image indicates a position away from the revolving axis by the separation distance.

公开(公告)号：US20180266082A1

公开(公告)日：2018-09-20

申请号：US15540077

申请日：2016-11-09

Applicant: KOMATSU LTD.

Inventor： Akira TANISHIGE ,  Yoshiki KAMI ,  Takashi YOKOO ,  Yuto FUJII ,  Haruki NISHIGUCHI

IPC: E02F9/26 ,  E02F3/30 ,  E02F9/22 ,  E02F3/43

CPC classification number: E02F9/264 ,  E02F3/307 ,  E02F3/3677 ,  E02F3/434 ,  E02F9/2228 ,  E02F9/2271 ,  E02F9/2285 ,  E02F9/2296 ,  E02F9/267

Abstract: A main controller controlling an operation of a work vehicle includes a determination unit and an abnormal condition determination unit. The determination unit determines whether or not an attachment has a sensor based on information on an attachment. When the determination unit determines that the attachment has the sensor and when the abnormal condition determination unit cannot receive a signal from the sensor, the abnormal condition determination unit determines that an abnormal condition has occurred.

公开(公告)号：US20180327997A1

公开(公告)日：2018-11-15

申请号：US15500272

申请日：2016-06-24

Applicant: KOMATSU LTD.

Inventor： Yuto FUJII ,  Takashi YOKOO

IPC: E02F3/43 ,  E02F9/26 ,  E02F3/42 ,  F15B15/28

CPC classification number: E02F3/435 ,  E02F3/425 ,  E02F3/43 ,  E02F9/26 ,  E02F9/265 ,  F15B15/24 ,  F15B15/2861 ,  F15B19/002 ,  F15B2211/20546 ,  F15B2211/41536 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/6654

Abstract: A work implement has a boom, an arm, and a bucket pivotable around a bucket axis which is a pivot axis with respect to the arm and a tilt axis orthogonal to the bucket axis. The hydraulic cylinder has the bucket pivot around the tilt axis. The regulation valve regulates an amount of supply of a hydraulic oil to be supplied to the hydraulic cylinder based on a command signal. The position sensor measures a stroke length of the hydraulic cylinder. The control unit resets the stroke length measured by the position sensor. The control unit determines proximity to a stroke end of the hydraulic cylinder, generates a command signal for increasing a degree of opening of the regulation valve in the proximity of the stroke end, and resets the stroke length measured by the position sensor while the regulation valve is open in response to the command signal.

公开(公告)号：US20180274207A1

公开(公告)日：2018-09-27

申请号：US15984759

申请日：2018-05-21

Applicant: KOMATSU LTD.

Inventor： Takashi YOKOO ,  Yuki SHIMANO ,  Tomohiro NAKAGAWA

IPC: E02F9/20 ,  E02F3/32 ,  E02F3/43 ,  E02F9/22

CPC classification number: E02F9/2041 ,  E02F3/32 ,  E02F3/437 ,  E02F3/439 ,  E02F9/2004 ,  E02F9/2012 ,  E02F9/22 ,  E02F9/262 ,  E02F9/265

Abstract: A control system for a work vehicle including a work implement comprises a first operating lever, a first operating member, and a controller. The first operating lever is for operating the work implement. The first operating member is provided on the first operating lever. The controller is programmed to control the work implement based on a designed terrain indicating a target shape of a work object. The controller is configured to change a position of the designed terrain in response to an operation of the first operating member when a performance condition is satisfied. The performance condition includes the first operating lever being located in a neutral position.

公开(公告)号：US20180251959A1

公开(公告)日：2018-09-06

申请号：US15561546

申请日：2016-11-09

Applicant: KOMATSU LTD.

Inventor： Yuto FUJII ,  Takashi YOKOO

IPC: E02F9/22 ,  E02F9/20 ,  E02F9/26 ,  F15B11/16 ,  F15B11/04

CPC classification number: E02F9/2228 ,  E02F3/32 ,  E02F3/3677 ,  E02F9/20 ,  E02F9/2004 ,  E02F9/2267 ,  E02F9/2271 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  E02F9/26 ,  F15B11/04 ,  F15B11/16 ,  F15B2211/6316 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/7107 ,  F15B2211/75 ,  F15B2211/855

Abstract: A work vehicle includes an operation apparatus for operating a work implement, a valve adjusting a flow rate of a hydraulic oil operating the work implement, an electromagnetic proportional control valve provided in a pilot oil path connecting a pilot oil pressure source and a pilot chamber of the valve to each other and generating a command pilot pressure with a source pressure input from the pilot oil pressure source being used as a primary pressure, and a main controller outputting a command current operating the electromagnetic proportional control valve in accordance with an operation of the operation apparatus. The main controller includes a data table storage unit storing data for predicting an operation speed of the work implement and a calibration unit calibrating data on the condition that an operation onto the operation apparatus is performed.

公开(公告)号：US20170292247A1

公开(公告)日：2017-10-12

申请号：US15118480

申请日：2016-04-08

Applicant: KOMATSU LTD.

Inventor： Takashi YOKOO ,  Yuki SHIMANO ,  Tomohiro NAKAGAWA

IPC: E02F9/20 ,  E02F3/43 ,  E02F3/32

CPC classification number: E02F9/2041 ,  E02F3/32 ,  E02F3/437 ,  E02F3/439 ,  E02F9/2004 ,  E02F9/2012 ,  E02F9/22 ,  E02F9/262 ,  E02F9/265

Abstract: A control system for a work vehicle having a work implement includes a first operating lever for the work implement, a first operating member and a controller. The first operating member is provided on the first operating lever. The controller is configured to perform an automatic control of the work implement. The controller is configured to perform a function of the automatic control, which is allocated to the first operating member, in response to operating the first operating member when a performance condition, including that the first operating lever is located in a neutral position thereof, is satisfied.